Universal lift milling machine

#UniversalMillingMachine www.cndxmc.com

Technical field

The utility model belongs to the ordinary milling machine, which involves the optimization and upgrading of the structure of the bed, the slide, the ram, the universal milling head.

Background technique

At present, the domestic milling machine presents many varieties, many styles, but the overall rigidity of the machine is not ideal, processing range is limited, processing is not flexible, poor machine stability. The universal rotary milling machine body of the invention can realize the multi-angle machining completely, the processing flexibility is increased and the processing range is greatly increased. The multi-stage gear transmission of the ram box can realize multi-stage speed change and can meet the requirements of various processing speed.

The contents of the invention

In view of the above shortcomings, the utility model provides the improvement measures. Can make the milling machine to maximize the processing advantages.

The technical scheme of the utility model is a universal rotary head milling machine, which comprises a base mechanism 1, a pillar mechanism 2, a lifting slide mechanism 3, a swing slide mechanism 4, a table mechanism 5, a ram box mechanism 6, Mechanism 7, rocker arm and operation panel mechanism 8, distribution box mechanism.

Characterized in that the pillar mechanism 2 is located above the base mechanism 1 and is fixed with six screws. The lifting and lowering carriage mechanism 3 is supported by a rectangular dovetail and fixed to the pillar mechanism 3 by means of a pressing plate which can be moved up and down on the column guide rail by a vertical guide rail driven by an elevating screw. The rotary carriage mechanism 4 is fixed to the lifting carriage mechanism 3 by means of a dovetail fit, and the rotary carriage is fixed together with the lifting slide through the press plate, and the rotary carriage can be moved forward and backward by the horizontal screw drive. The table mechanism 5 is fixed to the swivel slide 4 by means of a 55 degree swallows fit and the longitudinal extension of the table is achieved by means of a longitudinal screw. The rambar mechanism 6 is fixed to the pillar mechanism 2 by means of a 55 degree dovetail fit, and a rectangular groove is formed in the sliding end of the ram, and the linear rack is fitted and engaged with the groove through a gear shaft fixed to the upper end of the column. mobile. The universal milling head mechanism 7 is fixed to the ram mechanism 6 by means of a rotary disk.

The utility model has the advantages of:

1, pillar body 2 through the modification of a more oil tank body, you can easily achieve oil storage lubrication function. The overall height of the column to achieve Z to increase the trip to increase the scope of processing.

2, lifting the slider body 3 as a whole lengthened, so that Y to increase the stroke, processing range increased. The swing carriage mechanism 4 is divided into upper and lower parts by means of four T-bolts connected to each other and can achieve around 45 degrees rotation, so that processing range and processing capacity greatly enhanced.

3, the table body 5 lengthened, so that X to increase the trip to achieve the scope of processing increased.

4, the sliding box mechanism 6 adopts the gear transmission form, there are multi-level gear drive can achieve 12 speed, the bottom of the slide box has a vertical motor connected to provide power, greatly increasing the processing flexibility, fast and stable Sex. The lower part of the box through the 55-degree dovetail way with the column, in the dovetail surface with a rectangular groove, inlaid with a straight rack, fixed by the top of the column in the gear shaft and the meshing of the ramps to achieve the front and rear movement.

5, universal milling machine body 7 with the mutual cooperation of the two can rotate each other through the 90 degrees of a pair of chrysanthemum bevel gears to achieve transmission, can achieve any angle of the processing needs of space, convenient and flexible processing. The universal head is fixed to the front end of the ram by means of a connecting plate which connects the gears in the ram box with the gears in the universal head through a spline shaft.

6, rocker arm with multi-section steel pipe welding molding, through the square flange fixed in the top of the column behind. Operation box with 45 degrees backward tilt produced, beautiful appearance, the top through a flange and rocker connection. Bakelite U-type fixed in the lower part of the operation box, easy to drag and drop operation.

7, the distribution box is the entire machine tool power supply system, the use of electrical components fixed to galvanized steel plate, the entire electric plate fixed in the iron distribution box, the distribution box by bolts fixed to the side of the column.

Description of the drawings

Figure 1 is a schematic diagram of the utility model

Figure 2 for the ram structure diagram

Figure 3 for the universal head diagram

Figure 4 for the rocker and the operation panel mechanism

                                                               Figure 1

                                                                 Figure 2

                                                                 Figure 3

                                                                  Figure 4

Universal rotary head milling machine

#UniversalMillingMachine      
www.szmillingmachine.com   www.cndxmc.com  www.unimillingmachine.com

Technical field

The utility model belongs to ordinary drilling and milling machine, involving the bed, slide, ram, universal milling head structure optimization and upgrading.

Background technique

At present, the domestic drilling and milling machine presents many varieties, many styles, but the overall rigidity of the machine is not ideal, simple structure, small processing range, processing is not flexible, poor machine stability. The universal rotary milling head mechanism of the invention can realize multi-angle machining completely, the processing flexibility is increased, the processing range is greatly increased, and the column mechanism adopts multi-stage gear transmission mode, which can realize 12 speed change and can meet various processing speed requirements. Sliding box through the multi-stage gear drive can achieve multi-stage speed, can adapt to a variety of processing speed requirements.

The contents of the invention

In view of the above shortcomings, the utility model provides the improvement measures. Can make the milling machine to maximize the processing advantages.

The technical scheme of the utility model is a universal rotary head drilling and milling machine, which comprises a base mechanism 1, a pillar mechanism 2, a lifting slide mechanism 3, a swing slide mechanism 4, a table mechanism 5, a ram box mechanism 6, A head mechanism 7, a rocker arm and an operation panel mechanism 8, a power distribution system mechanism 9, an embedded walker mechanism 10, and a slide seat mechanism.

Characterized in that the pillar mechanism 2 is located above the base mechanism 1 and is fixed with six screws. The lifting and lowering carriage mechanism 3 is supported by a rectangular dovetail and fixed to the pillar mechanism 3 by means of a pressing plate which can be moved up and down on the column guide rail by a vertical guide rail driven by an elevating screw. The rotary carriage mechanism 4 is fixed to the lifting carriage mechanism 3 by means of a dovetail fit, and the rotary carriage is fixed together with the lifting slide through the press plate, and the rotary carriage can be moved forward and backward by the horizontal screw drive. The table mechanism 5 is fixed to the swivel slide 4 by means of a 55 degree swallows fit and the longitudinal extension of the table is achieved by means of a longitudinal screw. The ram mechanism 6 is fixed to the ram seat mechanism 11 by means of a 55-degree dovetail fit, and a sliding groove is applied to form a rectangular groove in which the linear rack is fitted in and out of the groove through a gear shaft fixed to the seat To achieve the front and rear movement of the ram. The universal milling head mechanism 7 is fixed to the ram mechanism 6 by means of a rotary disk.

The utility model has the advantages of:

1, pillar body 2 with four-axis multi-stage gear transmission, through the gear with the milling can be achieved 12-level speed, greatly meet the customer's processing needs, flexible processing methods. The overall height of the column to achieve Z to increase the trip to increase the scope of processing.

2, lift the slider body 3 in the original slide on the basis of the front end of a gap to accommodate the submerged knife device. The swing carriage mechanism 4 is divided into upper and lower parts by means of four T-bolts connected to each other and can achieve around 45 degrees rotation, so that processing range and processing capacity greatly enhanced.

3, the table body 5 lengthened, so that X to increase the trip to achieve the scope of processing increased.

4, the sliding box mechanism 6 adopts the gear transmission form, there are multi-level gear drive can achieve 12 speed, the bottom of the slide box has a vertical motor connected to provide power, greatly increasing the processing flexibility, fast and stable Sex. The lower part of the box through the 55-degree dovetail way with the ram seat with a rectangular groove in the tail surface, the embedded in a straight row of racks, fixed on the seat by the gear shaft and the meshing of the rack to achieve the front and rear movement.

5, the universal milling machine body 7 with the mutual cooperation of the two can rotate each other through the 90 degrees of a pair of chrysanthemum bevel gears to achieve transmission, can achieve any angle of space processing needs, processing flexible and fast. The universal head is fixed to the front end of the ram by means of a connecting plate which connects the gears in the ram box with the gears in the universal head through a spline shaft.

6, rocker arm with multi-section welded steel forming, through the square flange fixed in the top of the column behind. Operation box with 45 degrees backward tilt produced, beautiful appearance, the top through a flange and rocker connection. Bakelite U-type fixed in the lower part of the operation box, easy to drag and drop operation.

7, the distribution system is the entire machine tool power supply system, the use of electrical components fixed to galvanized steel plate, the entire electric plate fixed in the lower part of the column.

Description of the drawings

Figure 1 is a schematic diagram of the utility model

Figure 2 for the ram structure diagram

Figure 3 for the universal head diagram

Figure 4 for the rocker and the operation panel mechanism

Figure 5 for the embedded knife mechanism

                                                       Figure 1

                                                        Figure 2

                                                        Figure 3

                                                          Figure 4

                                                          Figure 5

The development of universal milling machine (continued)

#UniversalMillingMachine

Now universal milling machine due to the milling head is 360 degrees can be rotated is the main features of universal milling machine.

Some of the original universal milling machine gearbox is fixed or formed very small, we added a horizontal milling head so the formation of the gearbox should also increase, because according to the needs of the market customers to use the horizontal milling cutter and cutter Processing some special parts. So we added this function.

Only this is a complete function. Although it is a small change, but this is an important innovation in our vertical universal milling machine. With the needs and changes of the market we are on the table of the trip and the rotation so that the second paragraph of the universal milling machine was born. Model XQ6232WA not only work to increase the same time in order to meet the needs of customers processing the opposite non-normal work piece, increase the table 45 ° rotation. This can not only lie in the milling can also be processed about this type of work piece such as work piece bevel processing.

This function can be used with the indexing head at the same time can also be processed curve work piece.

Follow-up development we have developed a series of products such as: LM1450 LM1450A LM1450C in this is not a separate introduction lying on the universal milling machine, because its developed from a functional tool milling machine from the first 1999 XQ6226W to 2015 LM1450C experienced up to 15 years of history to develop a multi-function milling machine. LM1450C not only in the structure of a major breakthrough in the performance has been greatly improved. From a simple mechanical feed staged into a high performance with a perfect feeding system from simple electrical conversion into a convenient operation of the mechanical feed system, DXMC to achieve a tool milling machine to professional vertical universal milling machine.

The development of universal milling machine

Universal milling machine is because of the function and more named, the earliest is from a former Soviet Union,  named XW6232, was introduced in the 1950s . China later thought this product sales , have been gradually eliminated, because the machine operation in the cumbersome and bad operation .The market is not recognized. And then there are Zhejiang machine tool production, to change the original structure of the subject of a simple smart and re-recognized by the market. With the development of the market and diversification of this product, has not been good in the market . We triple the machine in 1986 after the upgrade and gradually promote the product development process : I (Qingmin Gao) in this industry for working 35 years, after the market survey , I found why the development of universal milling machine has been bad, the reason is very simple that we originally produced the product and did not consider the needs of the market and the technical staff just consider their own ideas. We do some analysis: universal milling machine must be taken into account the function of multi-purpose but also to take into account that every function should be able to be convenient, accurate, durable can not only consider the full range of functions and give up in a function of his unique Use effect. Just the original universal milling machine did not take into account , the main problem of this product. For example: universal milling machine horizontal milling function, the design only consider this phase function but ignores the processing needs. Because it is a cantilever structure, it is difficult to achieve the user's demand in the processing because there is no support point and thus poor stability to produce the work piece accuracy is not high.

After we visited a lot of customer . They response to our predictions completely consistent. So I led the technical staff to do some transformation. On the basis of the original we have added an independent horizontal milling function, his drive is a motor through the pulley under the transmission to the gear part and is independent of the gear speed mode, high precision and easy to use to solve the original accuracy is not high use inconvenient problem.

This product name is XQ6226W, and applied for a patent: (patent number :201320748753.1).

We are based on the principles of human mechanics to install a centralized operation panel.

We also on this basis to increase the plug function can achieve the purpose of milling and milling the work piece so that a real machine can achieve a multi-functional needs.

This universal milling machine : we achieve a major breakthrough, the next step we have in the processing data to increase the greater breakthrough. We are a professional production of universal milling machines and research enterprises , we form their own products, for using this technology , a lot of companies to imitate us, then we will be continued to reinvent universal milling machine and lying on the universal milling machine to do more in-depth coverage.If you want to get more information,please visit the website: www.cndxmc.com.

Universal milling machine development direction (milling head part)

Universal milling machine features:

The main features of the universal milling machine are structural stability and wide processing range. The milling head is a combination of two 45 ° angle milling heads, from the mechanical point of view, in the cutting process to offset the left and right and up and down the direction of resistance, making universal milling machine more stable than other structural milling machine, which is the main universal milling machine Features. At present there is a milling on the market can only do 90 ° rotation is very convenient, but this structure, from the mechanical point of view this  can not eliminate the cutting resistance, so the service life is reduced a lot, and can not do multi-angle rotation. (With universal milling head steering icon Figure 1)

 Figure 1

Universal milling machine milling head can achieve 360 ​​° rotation to solve the ordinary milling machine and this can not be processed in the processing of some dead ends such as: slope angle, diamond angle, ordinary milling machine also not be achieved. (With processing map)

 Figure 2

The shortcomings of the universal milling machine and its improved methods:

Universal milling machines also have some drawbacks such as: speed is generally around 2000 rpm, the spindle can not be stretched because is structure is driven by two pairs of 45 ° helical bevel gears (red gears in Figure 3). This gear characteristics of the torque transmission torque is strong, but its shortcomings are noise, heat is not good, coupled with the general use of grease, heat is not good, reducing the gear life.

  Figure 3

Universal milling machine needs revolution is to improve the speed, to achieve the high precision milling head automatically change the angle of the function. Improve gear material and machining accuracy. To achieve the speed can reach 6000-10000 turn, change the lubrication and cooling problems, so that you can use in the processing center to improve the machining center cutting force is not high, the production efficiency is reduced, you can also apply to the large gantry machining center to achieve high Speed, high precision, high efficiency. So that abrasive manufacturing industry to reduce a lot of costs.

The issues that need resolving:

First of all to solve the material problem, we currently use the material 20GrMnTi 40Gr steel in the current production , is basically to meet the requirements, but in the current automated production for the market ,this can not meet the needs. We currently take the process of turning milling - heat treatment - nitriding and carburizing - fine grinding. If we use plastic alloy material to solve the high fever , when the original gear is very easy to produce sintering problems, the second is to solve the high-speed gears in the case of noise problems ,Third, to solve the problem of gear life.

Milling head material improvement;

To choose high-precision ball cast iron , because of this material under high temperature deformation small. Because the ball cast iron material structure and ordinary gray cast iron is different. (Cast iron atomic structure Figure 4) , the ball cast iron in the high frequency of rotation is a small amount of wear deformation and gray cast iron can not do this.

  

            Figure 4

Solve the problem of the material at the same time, but also to solve the processing problem A high precision parts processing can not be separated from high precision equipment, universal milling head processing, mainly in the spindle hole axis and 45 ° angle of the joint control accuracy. To use high-precision composite boring and milling center can be achieved, but also a sophisticated inspection equipment to ensure the accuracy of the work piece.

Solve the machining problem and solve the assembly problem:

High-precision assembly to 25 ° ± 3 ° in the constant temperature of the room, in a clean state can be achieved. The assembly of the staff have to go through a professional, experienced technical staff, with mechanical automatic device equipment can be achieved, here is not doing a detailed description of . 

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Heat treatment of quenching, tempering

Here we heat the # steel
The steel will be heated to a certain temperature, in the insulation for some time, and then in water, salt water or by the medium of rapid cooling, this heat treatment process called quenching.
The effect of quenching: strengthening steel, which is one of the most common heat treatment process. We can also through the tempering process, change the internal structure of steel, so that the workpiece to obtain different mechanical properties to meet the different working conditions, better play the potential of material properties.
E.g:
① quenching steel + low temperature tempering can improve the hardness and wear resistance.
② quenching steel + medium temperature (high temperature) tempering, you can get a good overall performance, you can ensure adequate toughness under the premise of improving the strength of steel.
Common quenching method:
① single liquid quenching: the advantages of simple and easy way to achieve mechanization, the shortcomings of the work piece easy to crack. So it is only suitable for simple carbon steel and alloy steel parts.
② two-liquid quenching: mainly used in the water must be quenched steel, such as the larger size of the high-carbon steel parts and some alloy steel parts.
③ grading quenching: due to the slow cooling of the classification quenching, it is only applicable to the smaller size of carbon steel and alloy parts.
④ isothermal quenching: isothermal quenching parts of the internal stress and deformation of small, suitable for small precision parts quenching, such as precision gears.
Tempering is to heat the work piece after quenching to a certain temperature, heat a certain time, in a certain way to cool a heat treatment process. Tempering is followed by quenching, and is usually the last process of heat treatment.
In accordance with the performance requirements after tempering,  

3.
Low temperature tempering. Used for cutting tools, measuring tools, molds, etc., to eliminate the steel due to quenching and internal stress generated, and to maintain the quenching of high strength and wear resistance.
Medium temperature . Generally used for all kinds of springs, molds and impact tools, so that the steel to obtain a higher elasticity, a certain degree of toughness and hardness.
High temperature . Mainly used for high strength, high toughness of the important structural parts, such as the spindle, crankshaft, cam, gear and connecting rod, so that the steel to get better overall performance.

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Mechanical transmission foundation

Mechanical transmission is usually referred to as the rotary motion of the meshing drive and friction drive.

Mechanical transmission is divided into friction transmission and meshing transmission.

Friction drive which includes: direct contact transmission (friction wheel drive) and the use of intermediate flexible parts of the drive (belt drive) two parts.

Engagement drive inside includes: direct contact transmission (gear drive, worm drive) and the use of intermediate flexible parts of the drive (chain drive) two parts.

The purpose of mechanical transmission is to coordinate the working part of the speed relationship with the prime mover to achieve the requirements of deceleration, speed and speed, to achieve the force or torque changes.

1. The belt drive is composed of a driving wheel, a driven wheel and a belt.

Features: with a soft drive, can buffer, vibration, smooth transmission, no noise. Overload when the slip, to prevent damage to parts, play a role in security, but can not guarantee the accuracy of the transmission ratio. The structure is relatively simple and easy to manufacture, low cost, suitable for the two-axis center from the relatively large occasions, because the outer contour size, transmission efficiency is low. Belt drive is divided into (open, cross, semi-cross).

Used for mining machinery, chemical machinery, transportation machinery, agricultural machinery.

2. Chain drive is through a special active sprocket and power transmission to a special gear with a driven sprocket of a transmission.

Advantages: Compared with the belt drive, the chain drive inelastic sliding and slipping phenomenon, the average transmission ratio is accurate, reliable, high efficiency; transmission power, anti-overload ability, the same conditions of transmission size is small; On the small pressure; in high temperature, dusty, polluted harsh conditions to work.

Disadvantages: chain drive can only be used for parallel shaft drive between the high cost, easy to wear, poor transmission stability,

3. Gear drive refers to the main and driven wheel teeth directly to the movement and movement of the device. The gears are the most widely used in all transmissions.

Features: ① to ensure that the instantaneous transmission ratio of the constant, relatively high stability, accurate transmission of the

        by.

      ② transmission of power and speed range is relatively large.

      ③ compact structure, reliable, can achieve a larger transmission ratio.

      ④ high transmission efficiency, long service life.

      ⑤ gear manufacturing, installation requirements are relatively high.

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