Blank cutting device for ball screw machining

Abstract

The blank cutting device for ball screw machining comprises a top plate and a supporting structure, a hydraulic mechanism is arranged on the top plate, the blank cutting device further comprises a movable plate connected with the hydraulic mechanism, the hydraulic mechanism drives the movable plate to move, a bearing seat is arranged on the movable plate, a first clamp is connected to the bearing seat, and an abutting seat is further arranged on the movable plate; the supporting structure is provided with a stress mechanism, the stress mechanism is extruded by the abutting seat to move, the stress mechanism comprises a downward moving plate, the downward moving plate is connected with at least one crescent-shaped plate, one crescent-shaped plate is provided with a second clamp, and the other crescent-shaped plate is provided with a supporting plate. According to the blank cutting device for ball screw machining, a downward moving plate drives a mirror crescent plate to rotate, a second clamping hoop on a supporting rod is buckled with a first clamping hoop of a moving plate, the other crescent plate drives the supporting plate to synchronously move upwards, the cutting position of a ball screw is symmetrically supported, and clamping-supporting integration is achieved through linkage.

Description

Technical Field

[0001] The present invention relates to the technical field of ball screw processing, and specifically relates to a blank cutting device for ball screw processing. Background Art

[0002] Most existing cutting devices lack an effective clamping structure for ball screws in their design. When cutting a ball screw blank, due to the lack of firm clamping, the blank is extremely prone to displacement, shaking, or even vibration under the action of the cutting force. Taking a common metal material ball screw blank as an example, during high-speed cutting, if the blank is not fixed firmly, the reaction force generated when the cutting tool acts on the blank will cause the blank to shift in position, ultimately resulting in deviation of the cutting size and making it difficult to meet the high-precision processing requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a blank cutting device for ball screw processing to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A blank cutting device for ball screw processing, including a top plate and a support structure. A hydraulic mechanism is provided on the top plate, and further includes: A moving plate connected to the hydraulic mechanism, and the hydraulic mechanism drives the moving plate to move; A bearing seat is provided on the moving plate, a first clamp is connected to the bearing seat, and an abutting seat is also provided on the moving plate; A force-bearing mechanism is provided on the support structure. The force-bearing mechanism moves after being squeezed by the abutting seat. The force-bearing mechanism includes a downward-moving plate. At least two crescent plates are connected to the downward-moving plate. Adaptation shafts are provided on all the crescent plates. One of the crescent plates is connected to a support plate, and the other crescent plate is connected to a second clamp.

[0005] Preferably, a force-bearing plate is provided at one end of the downward-moving plate. The force-bearing plate and the abutting seat are of matching dimensions. A connecting shaft for connecting the crescent plate is provided at the other end of the downward-moving plate. A first limiting groove is also opened on the downward-moving plate, and a limiting block is inserted into the first limiting groove to limit the movement of the downward-moving plate.

[0006] Preferably, a connecting hole is opened at one end of the crescent plate. The connecting hole is sleeved on the connecting shaft to connect and rotate the crescent plate and the downward-moving plate. An adaptation shaft is connected to the other end of the crescent plate. A support rod is connected to the adaptation shaft. A sliding groove is opened on the crescent plate. A second limiting groove is opened on the support rod. A lower hook shaft is inserted into the sliding groove. The lower hook shaft is provided on a lower hook plate. A limiting shaft is clamped in the second limiting groove. The limiting shaft is provided on the support structure.

[0007] Preferably, the support rod supports the second clamp and the support plate respectively, the crescent plate and the support rod are at least a pair and are arranged in a mirror image, and the second clamp and the support plate move synchronously.

[0008] Preferably, the hydraulic mechanism includes a first flow diversion hydraulic machine and a second flow diversion hydraulic machine arranged on the top plate, the first flow diversion hydraulic machine is provided with a first hydraulic rod, the second flow diversion hydraulic machine is provided with a second hydraulic rod, the first hydraulic rod and the second hydraulic rod are both connected by connecting flanges, and the first hydraulic rod and the second hydraulic rod are respectively connected to the movable plate and the cutting mechanism.

[0009] Preferably, the first flow-dividing hydraulic machine and the second flow-dividing hydraulic machine are connected by the flow-dividing pipe.

[0010] Preferably, a movable groove is opened on the movable plate, a cutting mechanism is placed in the movable groove, the cutting mechanism includes a connecting plate, a motor is provided on the connecting plate, a motor shaft is provided on the motor, a cutting disk is connected to the motor shaft, a protective cover is provided on the outer side of the cutting disk, and the protective cover is arranged on the connecting plate in the same manner as the motor.

[0011] Preferably, a collecting plate is connected to the protective cover, the surface of the collecting plate is provided with an arc, the arc is consistent with the center of the cutting disk, a baffle is connected to the collecting plate, the collecting plate and the baffle form a containing bin, and a containing groove is provided in the containing bin.

[0012] Preferably, the protective cover is further provided with a receiving rod, a telescopic rod is provided in the receiving rod, and a ball is provided at the sliding end of the telescopic rod; A wave plate is also provided in the moving groove, and the wave plate is in close contact with the ball.

[0013] Preferably, the supporting structure comprises a fixing plate for supporting the lower hook plate and the limiting shaft, and a feeding roller for feeding is connected to the fixing plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the hydraulic mechanism of the billet cutting device for ball screw processing drives the movable plate to move downward, and the seat synchronously squeezes the movable plate of the force-bearing mechanism, and the limit block and the limit groove cooperate to guide. The movable plate drives the mirrored crescent plate to rotate through the connecting shaft, so that the second clamp on the support rod is buckled with the first clamp of the movable plate to form an embracing clamp. At the same time, another set of crescent plates drives the support plate to move upward synchronously, symmetrically supporting the cutting position of the ball screw. This mechanical linkage integrates "clamping-support", completely solves the problems of blank displacement and vibration, and the cutting size deviation can be accurately controlled to meet the requirements of precision machining.

[0015] The blank cutting device for ball screw processing is provided with an arc-shaped collecting plate coaxial with the center of the cutting disc inside the protective cover. Its radian is adapted to the cutting trajectory, enabling the debris generated by high-speed cutting to fall into the accommodating bin along the tangent line. The spiral diversion structure of the accommodating groove can automatically collect the debris to the discharge port. Compared with traditional open cutting, the debris collection efficiency is greatly improved. This design avoids the accumulation of debris affecting the operation of the equipment, eliminates the safety hazards of frequent manual cleaning, and is suitable for continuous operation of automated production lines.

[0016] The blank cutting device for ball screw processing realizes differential driving of the moving plate and the cutting mechanism through independent oil circuit control. When the first hydraulic rod drives the moving plate to complete blank clamping, the second hydraulic rod can synchronously drive the cutting mechanism to move up and down in the moving groove, and the cutting depth can be accurately controlled by adjusting the hydraulic pressure. Compared with traditional single hydraulic source equipment, the cutting depth adjustment resolution of this device is higher, and it can also steplessly vary the speed within a certain range, greatly enhancing the processing adaptability to different specifications of ball screws and enabling product switching without replacing hardware.

[0017] When the cutting mechanism of the blank cutting device for ball screw processing moves, the telescopic rod of the protective cover is in close contact with the corrugated plate through the ball, generating periodic fluctuating damping feedback. When the operator adjusts the position of the cutting mechanism, clear tactile feedback can be obtained, avoiding cutting errors caused by excessive manual displacement. After being equipped with this damping system, the control accuracy of the cutting feed speed is improved. Especially when cutting thin-walled ball screws, it can prevent the tool from chipping, extend the service life of the tool, and reduce processing costs. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 An enlarged schematic diagram of part A in the present invention; Figure 3 For the present invention Figure 1 An enlarged schematic diagram of part B in the present invention; Figure 4 For the present invention Figure 1 An enlarged schematic diagram of part C in the present invention; Figure 5 It is a schematic diagram of the structure of the present invention in the pressing-down state; Figure 6 It is a schematic diagram of the structure of the moving plate of the present invention; Figure 7 It is a schematic diagram of the structure of the second clamp of the present invention; Figure 8 It is a schematic diagram of the structure of the support plate of the present invention; Figure 9 It is a schematic diagram of the planing structure of the cutting mechanism of the present invention; Figure 10For the present invention Figure 9 is a schematic enlarged view of the structure at position D in the present invention.

[0019] In the figure: 1. Top plate; 2. Hydraulic mechanism; 21. First shunt hydraulic device; 22. Second shunt hydraulic device; 23. Shunt pipe; 24. First hydraulic rod; 26. Connecting flange; 25. Second hydraulic rod; 3. Cutting mechanism; 31. Motor; 32. Connecting plate; 33. Protective cover; 34. Cutting disc; 35. Motor shaft; 36. Collection plate; 361. Baffle; 362. Receiving bin; 363. Receiving groove; 37. Receiving rod; 371. Telescopic rod; 372. Ball; 38. Corrugated plate; 4. Moving plate; 41. Moving groove; 42. Bearing seat; 43. First clamp; 44. Abuttment seat; 5. Force-bearing mechanism; 51. Lower moving plate; 511. Force-bearing plate; 512. First limiting groove; 513. Connecting shaft; 52. Crescent plate; 521. Connecting hole; 522. Sliding groove; 523. Fitting shaft; 53. Support rod; 531. Second limiting groove; 532. Second clamp; 54. Support plate; 55. Limiting block; 56. Lower hook plate; 561. Lower hook shaft; 57. Limiting shaft; 6. Support structure; 61. Fixed plate; 62. Feeding roller. Detailed implementation manners

[0020] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-10, the present invention provides a technical solution: a blank cutting device for ball screw processing, including a top plate 1 and a support structure 6. When the device is in normal use, the support structure 6 is installed on the top floor of the factory building, so as to bear the hydraulic mechanism 2, and the connection of the support structure 6 is stable. There is a hydraulic mechanism 2 on the top plate 1. The hydraulic mechanism 2 is mainly used to drive the moving plate 4 and the cutting mechanism 3 to move, and the hydraulic mechanism 2 controls the cutting mechanism 3 and the moving plate 4 respectively. In the no-load case, the power to drive the second shunt hydraulic device 22 is greater than the power to drive the first shunt hydraulic device 21. During the use stage, the two first shunt hydraulic devices 21 output first. After the two first shunt hydraulic devices 21 stop, the second shunt hydraulic device 22 outputs. It also includes: a moving plate 4 connected to the hydraulic mechanism 2. The hydraulic mechanism 2 drives the moving plate 4 to move. There is a bearing seat 42 on the moving plate 4. The bearing seat 42 is used to connect and support the first clamp 43. The first clamp 43 is connected to the bearing seat 42. The first clamp 43 can be buckled with the second clamp 532, so as to fix the ball screw to be cut and prevent the ball screw from shifting during cutting. There is also a resisting seat 44 on the moving plate 4. The resisting seat 44 is used to press down the stress plate 511, so as to drive the lower moving plate 51 to move downward, and drive the stress mechanism 5 to deform. There is a stress mechanism 5 on the support structure 6. The stress mechanism 5 is squeezed and moved by the resisting seat 44. The stress mechanism 5 includes a lower moving plate 51. There are at least two crescent plates 52 connected to the lower moving plate 51. The specific number of the lower moving plates 51 is four, and each of the four lower moving plates 51 is provided with two crescent plates 52. One crescent plate 52 is provided with a second clamp 532, and the other crescent plate 52 is provided with a support plate 54.

[0022] Please refer to Figure 6, one end of the downward moving plate 51 is provided with a force receiving plate 511. The size of the force receiving plate 511 matches that of the abutment 44. Rubber is provided on the top of the force receiving plate 511. The advantages of using rubber are as follows. Firstly, when the abutment 44 and the downward moving plate 51 come into contact, it plays an anti-slip role to prevent the abutment 44 from slipping when contacting the downward moving plate 51. Secondly, it is to protect the downward moving plate 51 to prevent the abutment 44 and the downward moving plate 51 from making hard contact, resulting in wear of the abutment 44 and the downward moving plate 51. The other end of the downward moving plate 51 is provided with a connecting shaft 513 for connecting the crescent plate 52. The connecting shaft 513 is arranged at the bottom of the downward moving plate 51, which allows the crescent plate 52 to rotate on the connecting shaft 513. A first limiting groove 512 is also formed on the downward moving plate 51. When the downward moving plate 51 slides up and down on the connecting plate 32, the first limiting groove 512 can ensure that the downward moving plate 51 moves vertically in a horizontal plane. A limiting block 55 is inserted into the first limiting groove 512 to limit the movement of the downward moving plate 51. While the limiting block 55 is used to connect the downward moving plate 51, it also allows the downward moving plate 51 to move up and down. When the downward moving plate 51 is squeezed by the abutment 44, the downward moving plate 51 will move downward under the limitation of the limiting block 55. At this time, one end of the crescent plate 52 connected by the connecting shaft 513 will receive a downward moving force, and the position state of the crescent plate 52 will change at this time.

[0023] Please refer to Figure 7, one end of the crescent plate 52 is provided with a connection hole 521. The size of the connection hole 521 matches the size of the connection shaft 513. The function of the connection hole 521 is to be sleeved with the connection shaft 513 to ensure that one end of the crescent plate 52 with the connection hole 521 can rotate at the bottom end of the lower moving plate 51. When the connection hole 521 is sleeved on the connection shaft 513, the crescent plate 52 and the lower moving plate 51 are connected and can rotate. Such a design ensures that when the lower moving plate 51 is pressed down to drive the crescent plate 52 to move, the crescent plate 52 will rotate. The other end of the crescent plate 52 is connected with an adapter shaft 523. The adapter shaft 523 enables the support rod 53 to rotate at one end of the crescent plate 52. The support rod 53 is connected to the adapter shaft 523. The support rod 53 is used to support the second clamp 532 and the support plate 54 and can keep the second clamp 532 and the support plate 54 moving vertically up and down. A chute 522 is formed on the crescent plate 52. The chute 522 is used to limit the lower hook shaft 561 on the lower hook plate 56. This is equivalent to the crescent plate 52 being a lever and the lower hook shaft 561 being the fulcrum. When the lower moving plate 51 moves downward, it drives one end of the crescent plate 52 to press down. Affected by the lower hook shaft 561, the end of the crescent plate 52 connected with the support rod 53 is lifted up. The adapter shaft 523 adapts to the angular offset of the crescent plate 52 and longitudinally jacks up the second limit groove 531, so that the second clamp 532 or the first hydraulic rod 24 connected to the second limit groove 531 moves upward. A second limit groove 531 is formed on the support rod 53. The lower hook shaft 561 is inserted into the chute 522. Affected by the fulcrum of the lower hook shaft 561, the lower hook shaft 561 is arranged on the lower hook plate 56. The lower hook plate 56 is used to connect the lower hook shaft 561 to the connection plate 32. A limit shaft 57 is clamped on the second limit groove 531. The limit shaft 57 is used to limit the support rod 53 so that the support rod 53 can closely adhere to the inner side of the support structure 6 and can move up and down. The limit shaft 57 is arranged on the support structure 6.

[0024] Please refer to Figure 8 , the support rod 53 supports the second clamp 532 and the support plate 54 respectively. There is at least one pair of the crescent plate 52 and the support rod 53. The second clamp 532 is buckled with the first clamp 43 to clamp and fix the ball screw. Refer to Figure 5, there are two support plates 54, and there is a certain gap reserved in the diameters of the two support plates 54. After the cutting disc 34 cuts the ball screw, the cutting disc 34 can pass through the support plates 54 to ensure that the support plates 54 will not be damaged by cutting. When the second clamp 532 and the support plates 54 move upward without being affected by the downward moving plate 51, the weights of the second clamp 532 and the support plates 54 are the same, and the sum of their weights is greater than that of the downward moving plate 51. When the downward moving plate 51 is not squeezed by the abutment 44, the second clamp 532 and the support plates 54 will press down on the support rod 53 to move the downward moving plate 51 upward, and they are arranged in a mirror image. The second clamp 532 and the support plates 54 move synchronously. When the second clamp 532 and the support plates 54 move downward, their height is lower than that of the feeding roller 62 to ensure that when the feeding roller 62 transports the lead screw, it will not rub against the ball screw and affect the efficiency of transporting the ball screw.

[0025] Please refer to Figure 1 , the hydraulic mechanism 2 includes a first shunt hydraulic device 21 and a second shunt hydraulic device 22 provided on the top plate 1. The number of the first shunt hydraulic devices 21 is two, which are respectively arranged on both sides of the top plate 1. The two first shunt hydraulic devices 21 are connected through a shunt pipe 23 to ensure that the hydraulic pressure of the first shunt hydraulic devices 21 is the same, so as to simultaneously control the up and down movement of the first hydraulic rod 24 and stably drive the moving plate 4 to move up and down. The first shunt hydraulic device 21 is provided with a first hydraulic rod 24. When the first shunt hydraulic device 21 pushes the first hydraulic rod 24 to push the moving plate 4 downward until the downward moving plate 51 is pressed down to the displacement limit, the second shunt hydraulic device 22 drives the second hydraulic rod 25 to drive the cutting mechanism 3 to move downward to cut the ball screw. The second shunt hydraulic device 22 is provided with a second hydraulic rod 25. The first hydraulic rod 24 and the second hydraulic rod 25 are both connected by a connecting flange 26 to connect the first hydraulic rod 24 and the second hydraulic rod 25 to the moving plate 4 and the cutting mechanism 3 respectively. The first shunt hydraulic device 21 and the second shunt hydraulic device 22 are connected by a shunt pipe 23.

[0026] Please refer to Figure 9 , a moving groove 41 is formed on the moving plate 4. The moving groove 41 is used to allow the cutting mechanism 3 to move up and down in the moving plate 4. The cutting mechanism 3 is arranged in the moving groove 41. The cutting mechanism 3 includes a connecting plate 32. The connecting plate 32 is used to carry the connecting flange 26 fixed to the second hydraulic rod 25. A motor 31 is provided on the connecting plate 32. The motor 31 is used to drive the cutting disc 34 to rotate to cut the ball screw. A motor shaft 35 is provided on the motor 31, and a cutting disc 34 is connected to the motor shaft 35. A protective cover 33 is arranged outside the cutting disc 34. The protective cover 33 is arranged on the connecting plate 32 in the same way as the motor 31. The protective cover 33 is used to prevent accidents when the cutting disc 34 rotates at high speed, thus causing unexpected situations.

[0027] A collecting plate 36 is connected in the protective cover 33. The surface of the collecting plate 36 is provided with a radian, and the radian is consistent with the center of the cutting disc 34. The advantage of this design is that when the cutting disc 34 rotates to cut the ball screw, the generated debris will be driven by the cutting disc 34 and enter the accommodating bin 362 under the influence of the collecting plate 36. A baffle 361 is connected to the collecting plate 36, and the inner wall of the baffle 361 is used to block the continuous splashing of the debris, allowing the cut debris to enter the accommodating bin 362. The collecting plate 36 and the baffle 361 form the accommodating bin 362. An accommodating groove 363 is provided in the accommodating bin 362, and the accommodating groove 363 is used to load the debris generated by the cutting of the cutting disc 34. Finally, when discharging, unified discharging can be carried out, and the height of the collecting plate 36 and the cutting disc 34 is higher than the height of the cutting disc 34 and the top of the screw, so as to ensure that the existence of the collecting plate 36 does not affect the work of the cutting disc 34 to completely cut off the screw.

[0028] Please refer to Figure 10 In addition, a receiving rod 37 is provided on the protective cover 33. An expansion rod 371 is provided in the receiving rod 37. The receiving rod 37 is arranged on the outer shell of the receiving rod 37, and a compression spring is arranged inside the receiving rod 37. The compression spring can push the expansion rod 371 outward. A ball 372 is provided at the sliding end of the expansion rod 371, and the ball 372 can roll in the expansion rod 371 to reduce the friction between the wave plates 38. A wave plate 38 is also provided in the moving groove 41. The wave plate 38 is in close contact with the ball 372, and the wave plate 38 can make the expansion rod 371 move back and forth. Such a design generates a periodic fluctuation damping feedback to ensure that when the protective cover 33 moves downward, the second shunt hydraulic device 22 can better drive and control the moving position of the protective cover 33.

[0029] Please refer to Figure 5 The support structure 6 includes a fixing plate 61 for carrying the lower hook plate 56 and the limiting shaft 57. The fixing plate 61 is used to support the material conveying roller 62. A material conveying roller 62 for feeding is connected to the fixing plate 61, and the material conveying roller 62 is used to transport the screw.

[0030] When the blank cutting device for ball screw processing is in use, the feeding roller 62 on the fixed plate 61 of the support structure 6 first transports the ball screw blank to the processing position. At this time, the second clamp 532 and the support plate 54 press down the support rod 53 due to their own weight, causing the downward moving plate 51 to move upward. The heights of the second clamp 532 and the support plate 54 are lower than that of the feeding roller 62 to avoid interference. Subsequently, the hydraulic mechanism 2 on the top plate 1 is activated. The first shunt hydraulic device 21 drives the moving plate 4 to move downward through the first hydraulic rod 24. The abutment 44 on the moving plate 4 contacts and presses the force-receiving plate 511 of the downward moving plate 51. The rubber on the top of the force-receiving plate 511 ensures stable contact and reduces wear. The downward moving plate 51 vertically moves downward under the limitation of the limit block 55 and the first limit groove 512. Its connecting shaft 513 drives the crescent plate 52 to rotate with the connecting hole 521 as the fulcrum. The sliding groove 522 of the crescent plate 52 cooperates with the lower hook shaft 561 of the lower hook plate 56 to form a lever structure, causing one end of the connecting and adapting shaft 523 to tilt up, pushing the support rod 53 to move upward along the limit shaft 57 until the second clamp 532 of the support rod 53 is buckled with the first clamp 43 of the bearing seat 42 of the moving plate 4 to clamp the blank. At the same time, the other group of crescent plates 52 drives the support plate 54 to move upward to both sides of the blank cutting position. The gap between the support plates 54 allows the subsequent cutting disc 34 to pass through. After clamping, the second shunt hydraulic device 22 of the hydraulic mechanism 2 drives the cutting mechanism 3 to move downward along the moving groove 41 of the moving plate 4 through the second hydraulic rod 25. The motor 31 drives the cutting disc 34 to rotate at a high speed through the motor shaft 35 for cutting. The outer protective cover 33 of the cutting disc 34 ensures safety. During the cutting process, the collecting plate 36 coaxial with the center of the cutting disc 34 guides the debris to enter the accommodation bin 362 surrounded by the baffle 361 along the arc and is uniformly collected through the accommodation groove 363. At the same time, the telescopic rod 371 in the receiving rod 37 of the protective cover 33 is affected by the compression spring, causing the ball 372 to closely adhere to the corrugated plate 38 of the moving groove 41. When the cutting mechanism 3 moves downward, the ball 372 rolls along the corrugated plate 38 to generate periodic damping feedback to assist in accurately controlling the cutting depth. When the cutting is completed, the hydraulic mechanism 2 acts in the reverse direction, the moving plate 4 moves upward, the downward moving plate 51 loses the pressure of the abutment 44, and the second clamp 532 and the support plate 54 press down the support rod 53 due to their own weight, driving the crescent plate 52 to reset. The feeding roller 62 can continue to transport the next blank. The whole process realizes the stable clamping, accurate cutting and debris collection of the blank through the shunt control of the hydraulic mechanism 2, the lever transmission of the force-bearing mechanism 5 and the cooperation of each limiting structure.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made therein without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blank cutting device for ball screw machining, comprising a top plate (1) and a supporting structure (6), wherein a hydraulic mechanism (2) is provided on the top plate (1), characterized in that: Also includes: A movable plate (4) connected to the hydraulic mechanism (2), wherein the hydraulic mechanism (2) drives the movable plate (4) to move; The movable plate (4) is provided with a bearing seat (42), the bearing seat (42) is connected to a first clamp (43), and the movable plate (4) is also provided with a stop seat (44); The support structure (6) is provided with a force-bearing mechanism (5), and the force-bearing mechanism (5) moves after being squeezed by the stop (44). The force-bearing mechanism (5) comprises a downward moving plate (51), and at least two crescent plates (52) are connected to the downward moving plate (51). The crescent plates (52) are both provided with an adaptor shaft (523), one of the crescent plates (52) is connected to the support plate (54), and the other crescent plate (52) is connected to a second clamp (532).

2. A blank cutting device for ball screw machining according to claim 1, characterized in that: A force-bearing plate (511) is provided at one end of the downward moving plate (51), and the size of the force-bearing plate (511) matches that of the stop seat (44). A connecting shaft (513) for connecting to the crescent plate (52) is provided at the other end of the downward moving plate (51). A first limiting groove (512) is also provided on the downward moving plate (51), and a limiting block (55) is inserted into the first limiting groove (512) to limit the movement of the downward moving plate (51).

3. A blank cutting device for ball screw machining according to claim 2, characterized in that: A connecting hole (521) is provided at one end of the crescent plate (52), and the connecting hole (521) is sleeved on the connecting shaft (513) to connect and rotate the crescent plate (52) and the lower moving plate (51); an adapting shaft (523) is connected to the other end of the crescent plate (52), and a supporting rod (53) is connected to the adapting shaft (523); a sliding groove (522) is provided on the crescent plate (52), and a second limiting groove (531) is provided on the supporting rod (53); a lower hook shaft (561) is inserted into the sliding groove (522), and the lower hook shaft (561) is provided on the lower hook plate (56); a limiting shaft (57) is clamped on the second limiting groove (531), and the limiting shaft (57) is provided on the supporting structure (6).

4. A blank cutting device for ball screw machining according to claim 3, characterized in that: The support rod (53) supports the second clamp (532) and the support plate (54) respectively; the crescent plate (52) and the support rod (53) are at least a pair and are arranged in a mirror image; the second clamp (532) and the support plate (54) move synchronously.

5. The blank cutting device for ball screw machining according to claim 1, characterized in that: The hydraulic mechanism (2) comprises a first flow-dividing hydraulic machine (21) and a second flow-dividing hydraulic machine (22) which are arranged on the top plate (1); the first flow-dividing hydraulic machine (21) is provided with a first hydraulic rod (24); the second flow-dividing hydraulic machine (22) is provided with a second hydraulic rod (25); the first hydraulic rod (24) and the second hydraulic rod (25) are both connected by a connecting flange (26); the first hydraulic rod (24) and the second hydraulic rod (25) are respectively connected to the moving plate (4) and the cutting mechanism (3).

6. A blank cutting device for ball screw machining according to claim 5, characterized in that: The first flow-dividing hydraulic machine (21) and the second flow-dividing hydraulic machine (22) are connected by a flow-dividing pipe (23).

7. A blank cutting device for ball screw machining according to claim 5, characterized in that: The movable plate (4) is provided with a movable groove (41), a cutting mechanism (3) is arranged in the movable groove (41), the cutting mechanism (3) comprises a connecting plate (32), a motor (31) is provided on the connecting plate (32), a motor shaft (35) is provided on the motor (31), a cutting disc (34) is connected to the motor shaft (35), a protective cover (33) is provided on the outer side of the cutting disc (34), and the protective cover (33) is provided on the connecting plate (32) in the same manner as the motor (31).

8. A blank cutting device for ball screw machining according to claim 7, characterized in that: A collecting plate (36) is connected to the protective cover (33); a surface of the collecting plate (36) is provided with an arc, the arc being consistent with the center of the cutting disc (34); a baffle (361) is connected to the collecting plate (36); the collecting plate (36) and the baffle (361) form a containing chamber (362); a containing groove (363) is provided in the containing chamber (362).

9. A blank cutting device for ball screw machining according to claim 7 or 8, characterized in that: The protective cover (33) is further provided with a receiving rod (37), a telescopic rod (371) is provided in the receiving rod (37), and a ball bearing (372) is provided at the sliding end of the telescopic rod (371); A wave plate (38) is also provided in the movable groove (41), and the wave plate (38) and the rolling ball (372) are in close contact.

10. The blank cutting device for ball screw machining according to claim 3, characterized in that: The support structure (6) comprises a fixed plate (61) for supporting the lower hook plate (56) and the limiting shaft (57), and a feeding roller (62) for feeding is connected to the fixed plate (61).

Images