A machining mechanical component for double-sided milling

Abstract

The present invention relates to the technical field of milling equipment, and discloses a machining mechanical component for double-sided milling, which includes a mechanical slide table. A workpiece fixing tooling is provided on the mechanical slide table. The workpiece fixing tooling includes a plurality of fixing mechanisms. Each fixing mechanism includes a bottom plate fixedly connected to the mechanical slide table. On the bottom plate, there are two left and right side plates vertically arranged. Upper and lower cushion blocks are provided on the side plates. A hinge plate is also provided in the middle of the side plates. A pressing lever is provided in the cavity in the middle of the hinge plate, and the pressing lever is rotatably connected to the hinge plate through a fixing pin. A pressing mechanism is also provided at the lower part of the pressing lever; Two cushion plates are also provided on the bottom plate. A top plate is provided at the top of the side plate. A pre-tightening through groove is provided on the top plate. A screw seat is also provided on the top plate. The pressing lever passes through the pre-tightening through groove and is located in front of the screw seat; Milling mechanisms are provided on both the left and right sides of the mechanical slide table. The present invention has the beneficial effects of reducing the machining process of the carrier saddle, reducing the machining cost of the carrier saddle, and improving the machining efficiency of the carrier saddle.

Description

Technical Field

[0001] The present invention relates to the technical field of milling equipment, and particularly to a machining mechanical component for double-sided milling. Background Art

[0002] The bearing saddle is an important accessory of the running gear of railway freight cars. It is installed between the side frame of the freight car bogie and the rolling bearing to bear and transmit various loads. The traditional processing steps of the bearing saddle include milling the reference surface, milling the top surface, turning the saddle surface, milling the guide frame groove, milling 230, milling 15*7, grinding, inspection, etc. Among them, the reference surface and the top surface are two opposite surfaces. However, during processing, these two surfaces need to be milled separately in two steps, and the whole process is rather long, resulting in low processing efficiency of the bearing saddle.

[0003] With the rapid development of the manufacturing industry and the continuous increase in market demand, the efficiency of the traditional processing method of the bearing saddle can no longer meet the requirements. Therefore, it is necessary to improve the entire processing process to enhance efficiency. For the first two steps of the processing process, generally, a device is first used to clamp and align the bearing saddle to mill the reference surface. After inspection and qualification, the bearing saddle is transferred to another device to be clamped and aligned to mill the top surface. Therefore, a total of two devices and two operators, as well as two clampings, are required to jointly complete the processing of one bearing saddle. The overall processing efficiency is not high, and the labor cost is also relatively large. However, considering that the reference surface and the top surface are two opposite surfaces, if these two surfaces can be processed simultaneously after one clamping, only one operator and one device are needed to complete the first two processing contents simultaneously, which can significantly improve the processing efficiency of the bearing saddle. Summary of the Invention

[0004] The present invention aims to provide a machining mechanical component for double-sided milling to improve the processing efficiency of the bearing saddle.

[0005] To achieve the above object, the present invention adopts the following technical solution: A machining mechanical component for double-sided milling, including a mechanical slide, on which a workpiece fixing tooling is provided. The workpiece fixing tooling includes a plurality of fixing mechanisms. Each fixing mechanism includes a bottom plate fixedly connected to the mechanical slide. Vertically arranged on the bottom plate are two left and right side plates. Horizontally arranged on both the left and right side plates are upper cushion blocks, and a lower cushion block is further provided below the upper cushion block. Vertically arranged in the middle of the side plates is a hinge plate, which includes a hinge left plate and a hinge right plate arranged at intervals. Both the hinge left plate and the hinge right plate are horizontally provided with first through holes. A fixing pin is arranged in the first through hole. Vertically arranged in the cavity between the hinge left plate and the hinge right plate is a pressing lever, which is horizontally provided with a second through hole. The fixing pin passes through the second through hole and is fixedly connected to the hinge plate, and the pressing lever is rotatably connected to the hinge plate through the fixing pin. A pressing mechanism is further provided at the lower part of the pressing lever. Two cushion plates are further provided on the bottom plate, and the cushion plates are respectively located in front of the hinge left plate and the hinge right plate. At the top of the side plate is further provided a top plate, on which a pre-tightening through groove is vertically arranged, and the pre-tightening through groove is located in the middle of the hinge left plate and the hinge right plate. Milling mechanisms are provided on both the left and right sides of the mechanical slide.

[0006] The principle and advantages of this solution are as follows: In actual application, first place the carrier saddle horizontally in the fixing mechanism, and make the side of the carrier saddle abut against the top of the cushion plate. Then make the tops of the four support feet of the carrier saddle abut against the four cushion blocks in the fixing mechanism. Then push the pressing lever to rotate around the fixing pin, and use the pressing mechanism provided at the lower end of the pressing lever to tightly press the inside of the carrier saddle, so that the support feet of the carrier saddle and the cushion blocks are firmly abutted together, and the carrier saddle is stably fixed in the fixing mechanism. Finally, use the milling mechanisms provided on both the left and right sides of the mechanical slide to simultaneously mill the reference surface and the top surface of the carrier saddle. Compared with the prior art, the advantages of this solution are that it can simultaneously mill the reference surface and the top surface of the carrier saddle, effectively improving the processing efficiency of the carrier saddle. And it can also use multiple fixing mechanisms to simultaneously fix multiple carrier saddles to achieve the unified processing of multiple carrier saddles, further improving the processing efficiency, effectively reducing the processing manpower, and reducing the processing cost.

[0007] Preferably, as an improvement, a screw seat is provided on the top plate, and a fastening screw hole is horizontally arranged on the screw seat, and a fastening screw is arranged in the fastening screw hole.

[0008] Preferably, as an improvement, the pressing lever passes through the pre-tightening through groove and is located in front of the screw seat.

[0009] Preferably, as an improvement, a buffer pad is further provided in the pre-tightening through groove, and the buffer pad is located on the inner wall of the pre-tightening through groove opposite to the screw seat.

[0010] Preferably, as an improvement, the pressing mechanism includes a top block, a top block ear plate and a connecting pin. A connecting block is horizontally arranged on the top block. Connecting grooves are provided at one end of the connecting block away from the top block and one end of the top block ear plate close to the connecting block. Connecting screw holes are provided on both the top block ear plate and the connecting block, and connecting screws are arranged in the connecting screw holes. The connecting pin passes through the connecting grooves and is fixedly connected to the top block ear plate and the connecting block through the connecting screws. A top pressing through groove is also horizontally arranged on the pressing lever, and the top block ear plate, the connecting block and the connecting pin are all located in the top pressing through groove.

[0011] Preferably, as an improvement, the connecting groove is a semi-circular connecting groove, the connecting pin is a cylindrical connecting pin, and the radius of the connecting pin is the same as the radius of the connecting groove.

[0012] Preferably, as an improvement, a fixing rod for connecting the hinge left plate and the hinge right plate is also horizontally arranged below the pressing lever.

[0013] Preferably, as an improvement, a plurality of corresponding screw holes are provided on both the bottom plate and the upper end surface of the mechanical sliding table, and bolts are arranged in each screw hole. The bottom plate and the mechanical sliding table are fixedly connected through the bolts.

[0014] Preferably, as an improvement, the milling mechanism includes a base, a milling power head is arranged on the base, and a milling cutter head is arranged at one end of the milling power head close to the mechanical sliding table.

[0015] Preferably, as an improvement, the upper end surface of the cushion plate is lower than the lower end surface of the lower cushion block. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the machining mechanical component for double-sided milling of the present invention.

[0017] Figure 2 It is a schematic diagram of the workpiece fixing tooling of the first embodiment of the machining mechanical component for double-sided milling of the present invention.

[0018] Figure 3 It is a reverse schematic diagram of the workpiece fixing tooling of the first embodiment of the machining mechanical component for double-sided milling of the present invention.

[0019] Figure 4 It is a schematic diagram of the top pressing mechanism of the first embodiment of the machining mechanical component for double-sided milling of the present invention.

[0020] Figure 5 It is a schematic diagram of the buffer pad of the second embodiment of the machining mechanical component for double-sided milling of the present invention. Detailed Description of the Invention

[0021] The following is a further detailed description through specific embodiments:

[0022] The markings in the attached drawings of the specification include: mechanical slide table 1, base 2, milling power head 3, milling cutter head 4, workpiece fixing fixture 5, bottom plate 6, side plates 7, upper cushion block 8, lower cushion block 9, hinge left plate 10, hinge right plate 11, fixing pin 12, pressing lever 13, backing plate 14, top plate 15, pre-tightening through slot 16, screw seat 17, fastening screw 18, top block 19, top block ear plate 20, connecting pin 21, connecting block 22, bearing saddle 23, support foot 24, connecting screw 25, buffer pad 26.

[0023] Example 1:

[0024] This example is basically as shown in Figure 1 , Figure 2 and Figure 3 shown: A machining mechanical component for double-sided milling, including a mechanical slide table 1. A workpiece fixing fixture 5 is fixedly installed at the upper end of the mechanical slide table 1. The workpiece fixing fixture 5 includes 3 fixing mechanisms. Each fixing mechanism includes a bottom plate 6 fixedly connected to the mechanical slide table 1. A plurality of vertically corresponding screw holes are provided on both the mechanical slide table 1 and the bottom plate 6, and a bolt is installed in each screw hole. The bottom plate 6 and the mechanical slide table 1 are connected together by the bolt;

[0025] On the bottom plate 6, two left and right side plates 7 are vertically installed. And on the opposite inner sides of the two left and right side plates 7, an upper cushion block 8 and a lower cushion block 9 are horizontally installed. The lower cushion block 9 is directly below the upper cushion block 8. A hinge plate is also vertically installed in the middle of the two left and right side plates 7. The hinge plate includes a hinge left plate 10 and a hinge right plate 11 arranged at intervals. A cavity is formed between the hinge left plate 10 and the hinge right plate 11. A first through hole is horizontally provided at the upper parts of the hinge left plate 10 and the hinge right plate 11. A fixing pin 12 is installed in the first through hole. A pressing lever 13 is also vertically installed in the cavity between the hinge left plate 10 and the hinge right plate 11. A second through hole is horizontally provided on the pressing lever 13. And the fixing pin 12 passes through the second through hole to be fixedly connected to the hinge plate, so that the pressing lever 13 can rotate around the fixing pin 12. A fixing rod for connecting the hinge left plate 10 and the hinge right plate 11 is also horizontally installed below the pressing lever 13. Two backing plates 14 are also installed on the bottom plate 6 of the fixing mechanism. The backing plates 14 are respectively located in front of the hinge left plate 10 and the hinge right plate 11. And the upper end surface of the backing plate 14 is lower than the lower end surface of the lower cushion block 9;

[0026] At the top ends of the left and right side plates 7, a top plate 15 is also installed, and the top end of the hinge plate is also fixedly connected to the bottom end of the top plate 15. A pre-tightening through groove 16 is vertically opened on the top plate 15, and the pre-tightening through groove 16 is directly above the cavity between the left hinge plate 10 and the right hinge plate 11; a screw seat 17 is also installed on the top plate 15. The screw seat 17 is located beside the pre-tightening through groove 16, and the screw seat 17 is also horizontally provided with a fastening screw hole in the direction of the pre-tightening through groove 16, and a fastening screw 18 is threadedly connected in the fastening screw hole; at the same time, the upper part of the pressing lever 13 also passes through the pre-tightening through groove 16 and is located in front of the screw seat 17. When the pressing lever 13 is in a non-working state, its top surface is slightly higher than the top surface of the screw seat 17;

[0027] As shown in the appendix Figure 4 As shown, a pressing mechanism is also installed at the lower part of the pressing lever 13, including a top block 19, a top block ear plate 20 and a connecting pin 21. The outer shape of the top block 19 is arc-shaped. A connecting block 22 is horizontally installed at the middle position of the top block 19. Therefore, the top block 19 and the connecting block 22 are integrally in a "T" shape. A semi-circular connecting groove is opened at one end of the connecting block 22 away from the top block 19 and one end of the top block ear plate 20 close to the connecting block 22. The whole combines into a circular through hole, and the radius of the connecting pin 21 is the same as the radius of the connecting groove; connecting screw holes are opened on both the top block ear plate 20 and the connecting block 22, and a connecting screw 25 is installed in the connecting screw hole. The connecting pin 21 passes through the circular through hole formed by the connection of the connecting block 22 and the top block ear plate 20, and the connecting pin 21, the top block ear plate 20 and the connecting block 22 are fixed together by the connecting screw 25; at the same time, a pressing through groove is also horizontally opened at the lower part of the pressing lever 13, and the top block ear plate 20, the connecting block 22 and the connecting pin 21 are all located in the pressing through groove;

[0028] A milling mechanism is installed on both the left and right sides of the mechanical slide table 1. The milling mechanism includes a base 2. A milling power head 3 is fixedly installed on the base 2, and a milling cutter head 4 is installed at one end of the milling power head 3 close to the mechanical slide table 1.

[0029] Specifically, multiple fixing mechanisms of the workpiece fixing tooling 5 can be set according to the stroke of the mechanical slide table 1. In this embodiment, it is set to 3. Therefore, 3 load carriers 23 can be processed simultaneously. Such a design is restricted by the width of the actual working site on the one hand, and on the other hand, it maximizes the processing efficiency on the basis of meeting the site use requirements. If the fixing mechanisms are too few, the overall processing efficiency is not high, and if there are too many, the number of load carriers 23 processed simultaneously will increase, which may exceed the stroke of the mechanical slide table 1. Therefore, the fixing mechanisms are set to 3, and 3 load carriers 23 are processed simultaneously, which can not only ensure that the use of the mechanical slide table 1 meets the actual site requirements, but also efficiently process the load carriers 23 of the same batch.

[0030] In this embodiment, the selected mechanical slide 1 is model HJ50B / 1600, which has the advantages of stable operation, economy and practicality; the selected milling power head 3 is model ITX50, which has the advantages of good rigidity, long service life, good reliability, economy and practicality, and good price-performance ratio. Moreover, this type of milling power head is relatively independent and can adapt to various working environments.

[0031] The specific implementation process of this embodiment is as follows:

[0032] First step, place the carrier saddle 23 horizontally, so that the four support feet 24 of the carrier saddle 23 are misaligned with the upper cushion block 8 and the lower cushion block 9 in the fixing mechanism respectively. Then push the carrier saddle 23 inward. When the support feet 24 cross the cushion blocks, place the carrier saddle 23 downward until the side surface of the carrier saddle 23 abuts against the top end of the backing plate 14. Then pull the carrier saddle 23 outward so that the top ends of the four support feet 24 of the carrier saddle 23 abut against the four cushion blocks in the fixing mechanism.

[0033] Second step, rotate the fastening screw 18 on the screw base 17 so that the fastening screw 18 abuts against the pressing lever 13 and pushes the pressing lever 13 to move. Then the pressing lever 13 rotates around the fixed pin 12. During the rotation process, the pressing mechanism installed at the lower part of the pressing lever 13 moves toward the inner top surface of the carrier saddle 23 as the pressing lever 13 moves until the arc-shaped top block 19 of the pressing mechanism completely abuts against the inner top surface of the carrier saddle 23. Then rotate the screw again until the carrier saddle 23 is completely fixed in the fixing mechanism; then repeat the above steps to fix the remaining two carrier saddles 23.

[0034] Third step, after the 3 carrier saddles 23 are all fixed, start the mechanical slide 1 and the milling power heads of the milling mechanisms on both sides. The movement of the mechanical slide 1 drives the workpiece to move forward in a straight line. At the same time, the milling power heads rotate to mill both sides of the workpiece until the stroke of the mechanical slide 1 ends and both sides of the workpiece are processed.

[0035] Fourth step, after all 3 carrier saddles 23 are processed, turn off the milling mechanism, reverse-rotate the fastening screw 18 on the screw base 17, remove the processed carrier saddle 23, and then start the processing of the next batch of carrier saddles 23 according to the above steps.

[0036] The bolster 23, as an important component of the running gear of railway freight cars, is mainly used to bear and transmit various loads. Under the trend of continuous increase in freight volume and freight demand, the processing efficiency of the bolster 23 under the traditional processing mode has gradually been unable to meet the market demand. Therefore, it is urgent to improve the processing efficiency of the bolster 23. In the processing process of the bolster 23, all steps are completed in sequence. Especially, the two steps of milling the reference plane and milling the top surface take a long time. Generally, a device is first used to clamp and align the bolster to mill the reference plane. After inspection and qualification, the bolster is transferred to another device for clamping and alignment to mill the top surface. Therefore, the overall processing efficiency is not ideal.

[0037] In this solution, however, the processing process of the bolster 23 is optimized and improved specifically for the above problems. The two steps of milling the reference plane and milling the top surface are combined, and the device in this solution is designed to solve the problem of low processing efficiency. The workpiece fixing tooling 5 on the mechanical slide 1 is used to fix multiple bolsters 23 at the same time, and then the mechanical slide 1 is controlled to move linearly within its stroke. The milling mechanisms on both sides of the mechanical slide 1 are used to mill the reference plane and the top surface simultaneously. During the processing of the bolster 23, there is no need to re-take and place the processed bolster 23. Instead, when all the bolsters 23 of the same batch are processed, new bolsters 23 are replaced uniformly, which can effectively save the intermediate time for replacing the bolsters 23, thereby improving the processing efficiency. And compared with the previous mode of single processing and two steps, this solution can process multiple bolsters 23 at the same time, and when a single bolster 23 is processed, the reference plane and the top surface can be milled simultaneously, greatly improving the processing efficiency. On the other hand, the previous processing mode requires two devices and two operators to complete, while this solution only requires one device and one operator to complete. On the basis of ensuring the processing efficiency, the processing labor cost and equipment cost are further reduced, and the processing cost of the bolster 23 is comprehensively reduced, realizing the "cost reduction and efficiency increase" of the processing of the bolster 23.

[0038] Embodiment 2:

[0039] This embodiment is basically the same as Embodiment 1, the difference being that: as shown in the appendix Figure 5 As shown, a buffer pad 26 is also installed in the pre-tightening through groove 16, and the buffer pad 26 is located on the inner wall of the pre-tightening through groove 16 opposite to the screw seat 17. Specifically, the buffer pad 26 is a rubber pad and is screwed to the inner wall of the pre-tightening through groove 16.

[0040] To avoid the collision and extrusion between the pressing lever 13 and the pre-tightening through groove 16 when the pressing lever 13 is pushed to fix the bolster 23, resulting in wear or deformation of the pressing lever 13, a rubber pad is installed on the inner wall of the pre-tightening through groove 16, which can play a buffering role, effectively reducing the wear of the pressing lever 13 and improving the service life of the device.

[0041] The above are only embodiments of the present invention. Specific structures and characteristics and other common knowledge in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the invention belongs before the filing date or the priority date, can learn all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners and other records in the specification can be used to interpret the content of the claims.

Claims

1. A machining mechanical component for double-sided milling, characterized in that: It includes a mechanical slide, on which a workpiece fixing tooling is provided. The workpiece fixing tooling includes a plurality of fixing mechanisms. Each fixing mechanism includes a bottom plate fixedly connected to the mechanical slide. On the bottom plate, there are two left and right vertical side plates. On both the left and right side plates, upper pads are horizontally provided. Below the upper pads, lower pads are also provided. Vertically in the middle of the side plates, there is a hinge plate. The hinge plate includes a hinge left plate and a hinge right plate arranged at intervals. On both the hinge left plate and the hinge right plate, first through holes are horizontally provided. In the first through holes, fixing pins are provided. In the cavity between the hinge left plate and the hinge right plate, a pressing lever is vertically provided. Horizontally on the pressing lever, a second through hole is provided. The fixing pin passes through the second through hole and is fixedly connected to the hinge plate, and the pressing lever is rotatably connected to the hinge plate through the fixing pin. At the lower part of the pressing lever, a pressing mechanism is also provided. On the bottom plate, two pads are also provided, and the pads are respectively located in front of the hinge left plate and the hinge right plate. At the top of the side plates, there is a top plate. Vertically on the top plate, a pre-tightening through groove is provided, and the pre-tightening through groove is located in the middle of the hinge left plate and the hinge right plate. On both the left and right sides of the mechanical slide, milling mechanisms are provided; On the top plate, there is a screw seat. Horizontally in the screw seat, a fastening screw hole is provided. In the fastening screw hole, a fastening screw is provided. The pressing lever passes through the pre-tightening through groove and is located in front of the screw seat.

2. A machining mechanical component for double-sided milling according to claim 1, characterized in that: A buffer pad is also provided in the pre-tightening through groove, and the buffer pad is located on the inner wall of the pre-tightening through groove opposite to the screw seat.

3. A machining mechanical component for double-sided milling according to claim 1, characterized in that: The pressing mechanism includes a top block, a top block ear plate and a connecting pin. Horizontally on the top block, a connecting block is provided. At one end of the connecting block away from the top block and at one end of the top block ear plate close to the connecting block, connecting grooves are provided. On both the top block ear plate and the connecting block, connecting screw holes are provided. In the connecting screw holes, connecting screws are provided. The connecting pin passes through the connecting grooves and is fixedly connected to the top block ear plate and the connecting block through the connecting screws. Horizontally on the pressing lever, a pressing through groove is also provided. The top block ear plate, the connecting block and the connecting pin are all located in the pressing through groove.

4. A machining mechanical component for double-sided milling according to claim 3, characterized in that: The connecting groove is a semi-circular connecting groove, the connecting pin is a cylindrical connecting pin, and the radius of the connecting pin is the same as the radius of the connecting groove.

5. A machining mechanical component for double-sided milling according to claim 3, characterized in that: Horizontally below the pressing lever, a fixing rod for connecting the hinge left plate and the hinge right plate is also provided.

6. A machining mechanical component for double-sided milling according to claim 1, characterized in that: On both the bottom plate and the upper end surface of the mechanical slide, a plurality of corresponding screw holes are provided, and in each screw hole, a bolt is provided. The bottom plate and the mechanical slide are fixedly connected by the bolts.

7. A machining mechanical component for double-sided milling according to claim 1, characterized in that: The milling mechanism includes a base, on which a milling power head is provided, and a milling cutter head is provided at one end of the milling power head close to the mechanical slide.

8. A machining mechanical component for double-sided milling according to claim 1, characterized in that: the upper end surface of the backing plate is lower than the lower end surface of the lower spacer block.

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