Production process and device for motor hub of new energy vehicle

Abstract

The present invention discloses a production process and device for a motor hub of a new energy vehicle, belonging to the field of new energy vehicles. The production process includes a finishing process for the motor hub, and the finishing process comprises the following steps: S1: grinding both ends of the motor hub; S2: grinding the shaft hole of the motor hub; S3: grinding the side wall of the motor hub; S4: grinding the irregular holes on the motor hub. When the production device of the present invention grinds the end of the motor hub, the grinding block is brought into contact with the motor hub by starting the fifth cylinder, and the rotation of the grinding block is controlled by starting the second motor to achieve the grinding of the motor hub. The diameter of the ground ring can be controlled by starting the second cylinder. By starting the first motor, the motor hub is controlled to rotate 180 degrees so that the other end face of the motor hub faces the grinding part, and the grinding of this end can be achieved. Therefore, the grinding part can achieve the all-round grinding of the ends of motor hubs of any size.

Description

Technical Field

[0001] The present invention belongs to the field of new energy vehicles, and particularly relates to a production process and device for a motor hub of a new energy vehicle. Background Art

[0002] The biggest feature of the in-wheel motor is that both the power device and the transmission device are integrated into the wheel hub, thus greatly simplifying the mechanical part of the electric vehicle. There is no need to use a chain for transmission like a vehicle with a mid-mounted motor, which increases the transmission efficiency.

[0003] When the motor hub of the in-wheel motor is subjected to finish machining, it needs to be comprehensively polished. However, the traditional polishing device can only polish the motor hub with a fixed size, and the traditional polishing device usually can only polish the two ends and the side wall of the motor hub. For the shaft hole or irregular hole on the motor hub, manual polishing is required. This polishing method is time-consuming and laborious. To solve the above problems, a production process and device for a motor hub of a new energy vehicle are provided. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a production process and device for a motor hub of a new energy vehicle. When polishing the end of the motor hub, the polishing block is brought into contact with the motor hub by starting the fifth cylinder, and the polishing block is controlled to rotate by starting the second motor to realize the polishing of the motor hub. By starting the second cylinder, the diameter of the polished ring can be controlled. By starting the first motor, the motor hub is controlled to rotate 180 degrees so that the other end face of the motor hub faces the polishing part, and the polishing of this end can be realized. Therefore, the polishing part can realize the all-round polishing of the ends of motor hubs of any size.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A production process for a motor hub of a new energy vehicle, the production process includes a finish machining process for the motor hub, and the finish machining process includes the following steps:

[0007] S1: Polishing both ends of the motor hub

[0008] The motor hub is erected and clamped, and one end of the motor hub is polished by a polishing mechanism. After the polishing is completed, the motor hub is rotated 180°, and the unpolished end is polished.

[0009] S2: Polishing the shaft hole of the motor hub

[0010] The polishing mechanism is inserted into the shaft hole of the motor hub to polish the inner wall thereof.

[0011] S3: Polishing the side wall of the motor hub

[0012] Adjust the grinding mechanism to contact the side wall of the motor hub and grind its side wall.

[0013] S4: Grind the irregular holes on the motor hub

[0014] Insert the grinding mechanism into the irregular hole to be ground on the motor hub and grind it. After grinding one irregular hole, adjust the position of the motor hub, insert the grinding mechanism into the irregular hole to be ground on the motor hub again and grind it until all the irregular holes are ground.

[0015] The production device used in the above production process, the production device includes the above grinding mechanism, the grinding mechanism includes a production platform, a fixing member for fixing the motor hub is fixed above the production platform, a feeding member for feeding is arranged on one side of the fixing member, and a grinding member is arranged on the other side.

[0016] The grinding member includes a vertical plate fixed above the production platform, a rod sleeve is fixed on one side of the vertical plate, a sliding rod is slidably arranged in the rod sleeve, a driving box is fixed at one end of the sliding rod away from the rod sleeve, and a first spring is connected between the driving box and the rod sleeve.

[0017] A second motor is fixed in the driving box, the output shaft of the second motor penetrates through the side plate on the side of the driving box close to the support block and is vertically fixed with a first slide rail, a first slider is slidably arranged in the first slide rail, a second spring is connected between the first slider and the first slide rail, and a grinding block is fixed on one side of the first slider close to the fixing member.

[0018] An L-shaped connecting rod is fixed on the first slider, a limiting rod is obliquely fixed on one side of the L-shaped connecting rod close to the vertical plate, and a shaped bracket is fixed on the driving box, A second cylinder is fixed on one side of the shaped bracket close to the fixing member, a driving ring is fixed on the output shaft of the second cylinder, the limiting rod is sleeved in the driving ring, and in the natural state of the second spring, the limiting rod contacts the inner wall of the driving ring.

[0019] A second connecting rod is vertically fixed on one side of the driving box close to the first slide rail, a third cylinder is vertically fixed on the second connecting rod, the third cylinder is located between the first slide rail and the driving ring, a fourth cylinder is vertically fixed on the output shaft of the third cylinder, the fourth cylinder is perpendicular to the sliding rod, and a first pushing block for pushing the limiting rod to move is fixed on the output shaft of the fourth cylinder.

[0020] Further, the fixing member includes a support block, a through hole is provided on the support block, bushings are rotatably arranged on both sides of the through hole, a first sliding shaft is slidably arranged on the bushing, a first gear is fixed on the bushing, L-shaped brackets are fixed on both sides of the support block, and a first cylinder is fixed on the L-shaped bracket.

[0021] The output shaft of the first cylinder penetrates through the L-shaped bracket and is rotatably connected to one end of the first sliding shaft. A U-shaped clamping block is fixed to the other end of the first sliding shaft. The U-shaped clamping block is located within the through hole. A first motor is fixed to the L-shaped bracket, and a second gear meshing with the first gear is fixed to the output shaft of the first motor.

[0022] Furthermore, a fixed block is fixed below the drive box. A fifth cylinder parallel to the rod sleeve is fixed to the vertical plate. A drive block is fixed to the output shaft of the fifth cylinder. The drive block is located on one side of the fixed block close to the fixing member. Under the action of the first spring, the fixed block is in contact with the drive block.

[0023] Furthermore, a conveying device is provided on one side of the production platform. The conveying device is located below the feeding member.

[0024] Furthermore, the feeding member includes a horizontal plate fixed to the support block. The horizontal plate is located above the through hole. A vertical bracket is vertically fixed below the horizontal plate. A second connecting block is rotatably provided below the vertical bracket. A third motor for driving the second connecting block to rotate is fixed to the vertical bracket.

[0025] The output shaft of the third motor is horizontally arranged. A sixth cylinder is fixed to the second connecting block. A second drive box is fixed to the output shaft of the sixth cylinder. A fourth motor is fixed within the second drive box. The output shaft of the fourth motor penetrates through the side plate of the second drive box away from the sixth cylinder and is fixed with a clamping member.

[0026] Furthermore, the clamping member includes a fixing plate fixed to the output shaft of the fourth motor. A seventh cylinder is fixed to the side of the fixing plate away from the fourth motor. A second pushing block is fixed to the output shaft of the seventh cylinder. Four second slide rails are provided on the fixing plate. The second slide rails are distributed around the seventh cylinder, and two adjacent second slide rails are vertically distributed.

[0027] A second slider is slidably provided within the second slide rail. A third spring is connected between the second slider and the second slide rail. A second connecting rod perpendicular to the fixing plate is fixed to the second slider. A second clamping block is fixed to the side of the second connecting rod away from the seventh cylinder. A triangular block is fixed to the side of the second connecting rod close to the seventh cylinder. Under the action of the third spring, the second pushing block is in contact with the inclined surface of the triangular block.

[0028] Advantages of the present invention:

[0029] 1. When the production device of the present invention grinds the end of the motor hub, the grinding block is brought into contact with the motor hub by starting the fifth cylinder. The rotation of the grinding block is controlled by starting the second motor to achieve the grinding of the motor hub. The diameter of the ground ring can be controlled by starting the second cylinder. By starting the first motor, the motor hub is rotated 180 degrees so that the other end face of the motor hub faces the grinding part, enabling the grinding of this end. Therefore, the grinding part can achieve the all-round grinding of the ends of motor hubs of any size;

[0030] 2. When the production device of the present invention grinds the irregular holes on the motor hub, the rotation of the motor hub can be controlled by starting the fourth motor. By contracting one of the first cylinders and extending the other first cylinder, the left and right movement of the motor hub can be controlled, so that the irregular hole to be ground can be adjusted to face the second motor. The grinding block can be inserted into the irregular hole by starting the second cylinder. By contracting the second cylinder, the grinding block is brought into contact with the inner wall of the irregular hole of the motor hub. The second motor controls the grinding block to grind the irregular hole of the motor hub. Therefore, the device can achieve the all-round grinding of the motor hub. Brief Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 is a schematic structural diagram of the production device of the present invention;

[0033] Figure 2 is a schematic structural diagram of the production device of the present invention;

[0034] Figure 3 is Figure 1 the enlarged structural diagram at A in;

[0035] Figure 4 is a schematic structural diagram of the production device of the present invention;

[0036] Figure 5 is a schematic structural diagram of the clamping part of the present invention. Detailed Embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] A production process for a motor hub of a new energy vehicle, the production process including a finishing process for the motor hub, and the finishing process includes the following steps:

[0039] S1: Grinding both ends of the motor hub

[0040] Stand the motor hub upright and clamp it. Use a grinding mechanism to grind one end of the motor hub. After grinding is completed, rotate the motor hub 180°, and then grind the unground end.

[0041] S2: Grinding the shaft hole of the motor hub

[0042] Insert the grinding mechanism into the shaft hole of the motor hub to grind its inner wall.

[0043] S3: Grinding the side wall of the motor hub

[0044] Adjust the grinding mechanism to contact the side wall of the motor hub to grind its side wall.

[0045] S4: Grinding the irregular holes on the motor hub

[0046] Insert the grinding mechanism into the irregular holes to be ground on the motor hub to grind them. After grinding one irregular hole is completed, adjust the position of the motor hub, and then insert the grinding mechanism into the irregular holes to be ground on the motor hub again and grind them until all the irregular holes are ground.

[0047] The above production process uses a production device, and the production device includes the above grinding mechanism. The grinding mechanism includes a production platform 1, as Figure 1 、 Figure 2 shown. A fixing member 2 for fixing the motor hub is fixed above the production platform 1. A feeding member 5 for feeding is provided on one side of the fixing member 2, and a grinding member 4 is provided on the other side. A conveying device 3 is provided on one side of the production platform 1, and the conveying device 3 is located below the feeding member 5.

[0048] The fixing member 2 includes a support block 21. A through hole 22 is provided on the support block 21. Sleeve bearings 23 are rotatably provided on both sides of the through hole 22. A first sliding shaft 24 is slidably provided on the sleeve bearing 23. A first gear 26 is fixed on the sleeve bearing 23. L-shaped brackets 27 are fixed on both sides of the support block 21. A first cylinder 28 is fixed on the L-shaped bracket 27.

[0049] The output shaft of the first cylinder 28 penetrates through the L-shaped bracket 27 and is rotatably connected to one end of the first sliding shaft 24. A U-shaped clamping block 25 is fixed at the other end of the first sliding shaft 24. The U-shaped clamping block 25 is located within the through hole 22. A first motor 29 is fixed on the L-shaped bracket 27. A second gear 210 meshing with the first gear 26 is fixed on the output shaft of the first motor 29.

[0050] The grinding member 4 includes a vertical plate 41 fixed above the production platform 1. As Figure 3 , Figure 4 shown, a rod sleeve 42 is fixed on the side of the vertical plate 41 close to the support block 21. A sliding rod 43 is slidably provided within the rod sleeve 42. A driving box 45 is fixed at the end of the sliding rod 43 away from the rod sleeve 42. A first spring 44 is connected between the driving box 45 and the rod sleeve 42.

[0051] A second motor 46 is fixed within the driving box 45. The output shaft of the second motor 46 penetrates through the side plate of the driving box 45 close to the support block 21 and is perpendicularly fixed with a first sliding rail 47. A first slider 48 is slidably provided within the first sliding rail 47. A second spring 49 is connected between the first slider 48 and the first sliding rail 47. A grinding block 410 is fixed on the side of the first slider 48 close to the fixing member 2.

[0052] An L-shaped connecting rod 411 is fixed on the first slider 48. A limiting rod 412 is obliquely fixed on the side of the L-shaped connecting rod 411 close to the vertical plate 41. In the horizontal direction, the end of the limiting rod 412 away from the L-shaped connecting rod 411 is inclined towards the side away from the axis of the second motor 46. A shaped bracket 413 is fixed on the driving box 45. The shaped bracket 413 is fixed with a second cylinder 414 on the side close to the fixing member 2. A driving ring 415 is fixed on the output shaft of the second cylinder 414. The limiting rod 412 is sleeved within the driving ring 415. In the natural state of the second spring 49, the limiting rod 412 contacts the inner wall of the driving ring 415.

[0053] On one side of the driving box 45 close to the first slide rail 47, a second connecting rod is vertically fixed. A third air cylinder 416 is vertically fixed on the second connecting rod. The third air cylinder 416 is located between the first slide rail 47 and the driving ring 415. A fourth air cylinder 417 is vertically fixed on the output shaft of the third air cylinder 416. The fourth air cylinder 417 is perpendicular to the sliding rod 43. A first pushing block 418 for pushing the limiting rod 412 to move is fixed on the output shaft of the fourth air cylinder 417.

[0054] A fixing block 419 is fixed below the driving box 45. A fifth air cylinder 420 parallel to the rod sleeve 42 is fixed on the vertical plate 41. A driving block 421 is fixed on the output shaft of the fifth air cylinder 420. The driving block 421 is located on the side of the fixing block 419 close to the fixing member 2. Under the action of the first spring 44, the fixing block 419 contacts the driving block 421.

[0055] The feeding member 5 includes a horizontal plate 51 fixed on the support block 21. As Figure 5 shown, the horizontal plate 51 is located above the through hole 22. A vertical support 52 is vertically fixed below the horizontal plate 51. A second connecting block 53 is rotatably provided below the vertical support 52. A third motor 54 for driving the second connecting block 53 to rotate is fixed on the vertical support 52.

[0056] The output shaft of the third motor 54 is horizontally arranged. A sixth air cylinder 55 is fixed on the second connecting block 53. A second driving box 56 is fixed on the output shaft of the sixth air cylinder 55. A fourth motor 57 is fixed inside the second driving box 56. The output shaft of the fourth motor 57 penetrates through the side plate of the second driving box 56 far from the sixth air cylinder 55 and is fixed with a clamping member. When the sixth air cylinder 55 rotates to the vertical position, the clamping member faces downward. When the sixth air cylinder 55 rotates to the horizontal position, the sixth air cylinder 55 is coaxial with the through hole 22.

[0057] The clamping member includes a fixing plate 58 fixed on the output shaft of the fourth motor 57. A seventh air cylinder 515 is fixed on the side of the fixing plate 58 far from the fourth motor 57. A second pushing block 516 is fixed on the output shaft of the seventh air cylinder 515. Four second slide rails 59 are opened on the fixing plate 58. The second slide rails 59 are distributed around the seventh air cylinder 515. Two adjacent second slide rails 59 are vertically distributed.

[0058] A second slider 510 is slidably arranged in the second slide rail 59. A third spring 511 is connected between the second slider 510 and the second slide rail 59. A second connecting rod 512 perpendicular to the fixing plate 58 is fixed on the second slider 510. A second clamping block 513 is fixed on the side of the second connecting rod 512 far from the seventh air cylinder 515. A triangular block 514 is fixed on the side of the second connecting rod 512 close to the seventh air cylinder 515. Under the action of the third spring 511, the second pushing block 516 contacts the inclined surface of the triangular block 514.

[0059] In the natural state of the second spring 49, its length is less than the diameter of the motor hub and greater than the diameter of the shaft hole.

[0060] During use, the third motor 54 is started to control the sixth cylinder 55 to rotate to the vertical position. The motor hub to be polished is conveyed to the lower part of the clamping member through the conveying device 3. The seventh cylinder 515 is contracted to control the second connecting rods 512 to approach each other. The sixth cylinder 55 is started to insert the second connecting rods 512 into the shaft hole of the motor hub. The seventh cylinder 515 is extended to control the second connecting rods 512 to move away from each other, so that the second clamping blocks 513 are pressed against the side wall of the shaft hole, realizing the clamping of the motor hub. The motor hub is clamped by contracting the seventh cylinder 515. The third motor 54 is started to control the sixth cylinder 55 to rotate to the horizontal position. The motor hub is moved between the two U-shaped clamping blocks 25 by starting the seventh cylinder 515. The side wall of the motor hub can be clamped by starting the first cylinder 28.

[0061] When grinding the end of the motor hub, the fifth cylinder 420 is started to make the grinding block 410 contact the motor hub. The second motor 46 is started to control the grinding block 410 to rotate, realizing the grinding of the motor hub. The grinding position is annular. The diameter of the annulus can be controlled by starting the second cylinder 414. The first motor 29 is started to control the motor hub to rotate 180 degrees, so that the other end face of the motor hub faces the grinding member 4, enabling the grinding of this end. Therefore, the grinding member 4 can achieve all-round grinding of the end of the motor hub.

[0062] When grinding the shaft hole of the motor hub, the clamping member is loosened from the motor hub. The second cylinder 414 is started to control the grinding block 410 to align with the shaft hole. The fifth cylinder 420 is started to insert the grinding block 410 into the shaft hole. The second cylinder 414 is contracted. Under the action of the second spring 49, the grinding block 410 contacts the inner wall of the shaft hole of the motor hub. The second motor 46 is started to control the grinding block 410 to grind the shaft hole of the motor hub.

[0063] When grinding the side wall of the motor hub, the motor hub is clamped by the clamping member. The first cylinder 28 is started to loosen the side wall of the motor hub. The third cylinder 416 is started to move the grinding block 410 to the outside of the motor hub. Then the fifth cylinder 420 is started to make the grinding block 410 located on one side of the motor hub. The third cylinder 416 is contracted. Under the action of the second spring 49, the grinding block 410 contacts the side wall of the motor hub. The second motor 46 is started to control the grinding block 410 to grind the side wall of the motor hub.

[0064] When grinding the irregular holes on the motor hub, the rotation of the motor hub can be controlled by starting the fourth motor 57. By contracting one of the first cylinders 28 and extending the other first cylinder 28, the left and right movement of the motor hub can be controlled, so that the irregular hole to be ground can be adjusted to face the second motor 46. By starting the second cylinder 414, the grinding block 410 can be inserted into the irregular hole. By contracting the second cylinder 414, the grinding block 410 can be brought into contact with the inner wall of the irregular hole of the motor hub. The second motor 46 controls the grinding block 410 to grind the irregular hole of the motor hub. Therefore, this device can achieve all-round grinding of the motor hub.

[0065] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A production process for the motor hub of a new energy vehicle. The production process includes the finish machining process of the motor hub. Characterized in that, The finish machining process includes the following steps: S1: Grinding both ends of the motor hub The motor hub is erected and clamped. One end of the motor hub is ground by a grinding mechanism. After grinding is completed, the motor hub is rotated 180°, and then the unground end is ground. S2: Grinding the shaft hole of the motor hub The grinding mechanism is inserted into the shaft hole of the motor hub to grind its inner wall. S3: Grinding the side wall of the motor hub The grinding mechanism is adjusted to contact the side wall of the motor hub to grind its side wall. S4: Grinding the irregular holes on the motor hub The grinding mechanism is inserted into the irregular hole to be ground on the motor hub for grinding. After grinding one irregular hole, the position of the motor hub is adjusted, and then the grinding mechanism is inserted into the irregular hole to be ground on the motor hub again for grinding until all the irregular holes are ground. The production device used in the production process: The production device includes a grinding mechanism. The grinding mechanism includes a production platform. Above the production platform, there is a fixing part for fixing the motor hub. On one side of the fixing part, there is a feeding part for feeding materials, and on the other side, there is a grinding part. The grinding part includes a vertical plate fixed above the production platform. On one side of the vertical plate, there is a rod sleeve. A sliding rod is slidably arranged in the rod sleeve. One end of the sliding rod away from the rod sleeve is fixed with a driving box. A first spring is connected between the driving box and the rod sleeve. The fixing part includes a support block. There is a through hole on the support block. On both sides of the through hole, there are rotatable bushing sleeves. A first sliding shaft is slidably arranged on the bushing sleeve. A first gear is fixed on the bushing sleeve. On both sides of the support block, there are fixed L-shaped brackets. A first cylinder is fixed on the L-shaped bracket. The output shaft of the first cylinder penetrates through the L-shaped bracket and is rotatably connected to one end of the first sliding shaft. The other end of the first sliding shaft is fixed with a U-shaped clamping block. The U-shaped clamping block is located in the through hole. A first motor is fixed on the L-shaped bracket. A second gear meshing with the first gear is fixed on the output shaft of the first motor. A second motor is fixed in the driving box. A first slide rail is vertically fixed on the output shaft of the second motor. The output shaft of the second motor penetrates through the side plate on the side of the driving box close to the support block. A first slider is slidably arranged in the first slide rail. A second spring is connected between the first slider and the first slide rail. A grinding block is fixed on the side of the first slider close to the fixing part. A first slider is fixedly provided with an L-shaped connecting rod. One side of the L-shaped connecting rod close to the vertical plate is obliquely and fixedly provided with a limiting rod. In the horizontal direction, one end of the limiting rod away from the L-shaped connecting rod is inclined to the side away from the axis of the second motor. A shaped bracket is fixedly provided on the driving box, A second cylinder is fixedly provided on one side of the shaped bracket close to the fixing member. A driving ring is fixedly provided on the output shaft of the second cylinder. The limiting rod is sleeved in the driving ring. In the natural state of the second spring, the limiting rod contacts the inner wall of the driving ring; A second connecting rod is vertically fixed on the side of the driving box close to the first slide rail. A third cylinder is vertically fixed on the second connecting rod. The third cylinder is located between the first slide rail and the driving circle. A fourth cylinder is vertically fixed on the output shaft of the third cylinder. The fourth cylinder is perpendicular to the sliding rod. A first pushing block for pushing the limiting rod to move is fixed on the output shaft of the fourth cylinder.

2. According to the production process of claim 1, Characterized in that, A fixing block is fixed below the driving box. A fifth cylinder parallel to the rod sleeve is fixed on the vertical plate. A driving block is fixed on the output shaft of the fifth cylinder. The driving block is located on the side of the fixing block close to the fixing part. Under the action of the first spring, the fixing block contacts the driving block.

3. The production process according to claim 2, characterized in that, a conveying device is provided on one side of the production platform, and the conveying device is located below the feeding member.

4. The production process according to claim 3, characterized in that, the feeding member includes a horizontal plate fixed on a support block, the horizontal plate is located above the through hole, a vertical bracket is vertically fixed below the horizontal plate, a second connecting block is rotatably provided below the vertical bracket, and a third motor for driving the second connecting block to rotate is fixed on the vertical bracket; the output shaft of the third motor is horizontally arranged, a sixth cylinder is fixed on the second connecting block, a second driving box is fixed on the output shaft of the sixth cylinder, a fourth motor is fixed in the second driving box, and a clamping member is fixed on the output shaft of the fourth motor through the side plate of the second driving box away from the sixth cylinder.

5. The production process according to claim 4, characterized in that, the clamping member includes a fixing plate fixed on the output shaft of the fourth motor, a seventh cylinder is fixed on the side of the fixing plate away from the fourth motor, a second pushing block is fixed on the output shaft of the seventh cylinder, four second slide rails are provided on the fixing plate, the second slide rails are distributed around the seventh cylinder, and two adjacent second slide rails are vertically distributed; a second slider is slidably provided in the second slide rail, a third spring is connected between the second slider and the second slide rail, a second connecting rod perpendicular to the fixing plate is fixed on the second slider, a second clamping block is fixed on the side of the second connecting rod away from the seventh cylinder, a triangular block is fixed on the side of the second connecting rod close to the seventh cylinder, and the second pushing block contacts the inclined surface of the triangular block under the action of the third spring.

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