A clamping tool for special-shaped parts

Abstract

A clamping tool for special-shaped parts, comprising a machine base, a height adjustment component, a plane adjustment component, a movable clamping component and an edge adaptation component. The height adjustment component and the edge adaptation component are adjacently arranged on the machine base. The plane adjustment component includes a transverse adjustment unit and a longitudinal adjustment unit that are perpendicular to each other. The transverse adjustment unit is fixedly arranged at one end of the machine base where the height adjustment component is located. The longitudinal adjustment unit is fixedly connected with a movable clamping component and is fixedly connected with the transverse adjustment unit. The movable clamping component is placed on the height adjustment component and is arranged towards the edge adaptation component. The movable clamping component has a movable adjustment block adapted to adjust to the edge of the special-shaped part. Multiple adaptive adjustment components are provided in the present invention, and production personnel can adaptively adjust the multiple adjustment components according to the edge shape of the special-shaped part, so as to realize clamping and positioning of the special-shaped edge of the special-shaped part. The operation is simple and the use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and particularly to a clamping tool for special-shaped parts. Background Art

[0002] A part refers to an indivisible single workpiece in a machine, which is the basic unit in the process of machine manufacturing. Its manufacturing process generally does not require an assembly process. Sometimes, conventional parts cannot meet the usage requirements, so special-shaped parts are needed.

[0003] At present, with the development of social industry, more and more special-shaped parts have been put into production practice. Their structures are complex, and there are great differences from the processing requirements of standard parts. It is difficult to effectively clamp them using general clamping components during processing. Generally, manual clamping is required, which has a large labor intensity, a long auxiliary time for part processing, low production efficiency, and is prone to sliding or excessive clamping force, thus damaging the part structure.

[0004] Therefore, how to simply and efficiently clamp special-shaped parts has become an urgent problem to be solved in the part processing industry. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a clamping tool for special-shaped parts. A plurality of adaptable adjustment components are arranged in the clamping tool, and production personnel can adaptively adjust the plurality of adjustment components according to the edge shape of the special-shaped part, so as to clamp and position the special-shaped edge of the special-shaped part, with simple operation and convenient use.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is:

[0007] A clamping tool for special-shaped parts includes a machine base, a height adjustment component, a plane adjustment component, a movable clamping member, and an edge adaptation component. The height adjustment component and the edge adaptation component are adjacent to each other and arranged on the machine base. The plane adjustment component includes a transverse adjustment unit and a longitudinal adjustment unit that are relatively perpendicular to each other. The transverse adjustment unit is fixedly arranged at one end of the machine base where the height adjustment component is located. The longitudinal adjustment unit is fixedly connected to the movable clamping member and fixedly connected to the transverse adjustment unit. The movable clamping member is placed on the height adjustment component and is arranged towards the edge adaptation component. The movable clamping member has a movable adjustment block adapted to adjust to the edge of the special-shaped part. The height adjustment component, the transverse adjustment unit, and the longitudinal adjustment unit adjust the height and plane position of the movable clamping member relative to the special-shaped part. The movable adjustment block on the movable clamping member cooperates with the edge adaptation component to fix the edge of the special-shaped part.

[0008] Preferably, the height adjustment assembly includes a fixed platform and an adjustment screw. At least three corners of the fixed platform are provided with threaded holes. One end of the adjustment screw abuts against the surface of the machine base, and the other end is threadedly connected to the threaded hole to adjust the height of the fixed platform relative to the machine base. A transfer member for manual rotation is sleeved on the end of the adjustment screw located on the surface of the machine base.

[0009] Preferably, C-shaped clamping seats are respectively protruded on the surface of the machine base corresponding to the positions of the adjustment screws. The inside of the C-shaped clamping seat has a C-shaped clamping groove and the C-shaped clamping seat has an opening facing the side of the machine base. The end of the adjustment screw and the transfer member are embedded in the C-shaped clamping groove. The shape of the transfer member corresponds to the shape of the C-shaped clamping groove and part of it is exposed from the opening of the C-shaped clamping seat so as to manually turn the transfer member to rotate the adjustment screw to adjust the height of the fixed platform.

[0010] Preferably, the edge adaptation assembly includes a fixed plate and a magnetic pole lifting unit. A pair of parallel support plates are vertically provided at the position of the machine base where the edge adaptation assembly is located. The fixed plate is fixed on the support plates by fixing screws. The magnetic pole lifting unit includes a fixed magnetic block and a plurality of movable positioning rods. The fixed magnetic block is fixed at the position of the machine base between the two support plates. The plurality of movable positioning rods vertically pass through the fixed plate evenly and movable magnetic disks are arranged at the ends close to the fixed magnetic block. The magnetic poles of the fixed magnetic block and the movable magnetic disks are the same.

[0011] When the special-shaped part is not placed on the fixed plate, the plurality of movable positioning rods remain stationary with the fixed plate by the repulsive force between the fixed magnetic block and the movable magnetic disks.

[0012] When the special-shaped part is partially placed on the fixed plate and covers part of the movable positioning rods, the covered movable positioning rods move towards the fixed magnetic block direction and act on the special-shaped part in the reverse direction through the repulsive force between the fixed magnetic block and the movable magnetic disks to keep it stationary with the special-shaped part. The uncovered movable positioning rods abut against part of the edge of the special-shaped part placed on the edge adaptation assembly.

[0013] Preferably, an L-shaped locking rod is arranged on the side of the fixed magnetic block and is fixed to the machine base by a locking screw. A plurality of movable through holes are arranged in an array on the fixed plate, and each movable through hole correspondingly penetrates through the movable positioning rod.

[0014] Preferably, the lateral adjustment unit includes a fixed sleeve, a lateral threaded sleeve, a lateral screw rod, and a lateral crank. At one end of the height adjustment component, the machine base is vertically provided with a planar adjustment support block. The fixed sleeves are respectively vertically arranged at both ends of the planar adjustment support block. The lateral threaded sleeve is fixed at the position between the two fixed sleeves of the planar adjustment support block. The lateral screw rod passes through the fixed sleeve and the lateral threaded sleeve respectively, and first elastic buckles are sleeved at both ends and radially fixed to the fixed sleeve. The lateral screw rod is threadedly connected to the lateral threaded sleeve, and the lateral crank is fixed to any one end of the lateral screw rod.

[0015] Preferably, at the fixed connection between the lateral threaded sleeve and the planar adjustment support block, a reversed U-shaped limiting block extends towards the planar adjustment support block. The lateral threaded sleeve is fixed to the reversed U-shaped limiting block embedded in the planar adjustment support block.

[0016] Preferably, the longitudinal adjustment unit includes a longitudinal threaded sleeve, a longitudinal screw rod, and a longitudinal crank. The longitudinal threaded sleeve is fixedly arranged on the lateral threaded sleeve, and their projections on the horizontal plane are perpendicular to each other. The longitudinal screw rod passes through the longitudinal threaded sleeve and is threadedly connected to it. The longitudinal crank is fixed to one end of the longitudinal screw rod away from the edge adaptation component, and the other end is fixedly connected to the movable clamping part through a connecting piece.

[0017] Preferably, the connecting piece includes a square frame, a rotating clamping shaft, and a second elastic buckle. The square frame is fixed on the outer side surface of the movable clamping part, and a clamping groove is arranged inside the square frame. A rotating clamping shaft protrudes at one end of the longitudinal screw rod where the longitudinal crank is not provided. The rotating clamping shaft is embedded in the clamping groove of the square frame and sleeved with the second elastic buckle to abut and fix against both sides of the clamping groove. By shaking the longitudinal crank, the longitudinal screw rod moves along its axial direction in the longitudinal threaded sleeve, and the movable clamping part is driven to move through the rotating clamping shaft embedded in the clamping groove of the square frame.

[0018] Preferably, the movable clamping part further includes a U-shaped frame and a plurality of movable clamping balls. The U-shaped frame is recessed with a U-shaped limiting groove. Movable adjustment blocks protrude from both ends of the U-shaped limiting groove respectively. The plurality of movable clamping balls are sequentially embedded in the U-shaped limiting groove and abut against the two movable adjustment blocks. A U-shaped cover covering the U-shaped limiting groove is arranged at the top of the U-shaped frame. The two movable adjustment blocks can achieve adaptive abutting contact with the edge of the special-shaped part through the force transmission between the plurality of movable clamping balls.

[0019] Compared with the prior art, the special-shaped parts clamping tool provided by the present invention can first cover the part of the movable positioning rod in the edge adaptation component by the special-shaped part so that the uncovered movable positioning rod can be adaptively adjusted and abutted with the edge shape of the special-shaped part, and then adjust the position of the movable clamping member by adjusting the height adjustment component, the lateral adjustment unit and the longitudinal adjustment unit so that the movable adjustment block on the movable clamping member can abut against the edge of the special-shaped part. At the same time, the movable adjustment block can transmit force through a plurality of movable clamping balls arranged between the two, so that the movable adjustment block can be adaptively adjusted to the edge of the part of the special-shaped part that is not placed in the edge adaptation component, so as to cooperate with the movable positioning rod of the edge adaptation component to clamp and position the special-shaped part on the clamping tool, which is simple to operate and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A three-dimensional diagram of a special-shaped parts clamping tool provided by the present invention;

[0022] Figure 2 An axonometric view of a special-shaped parts clamping tool provided by the present invention;

[0023] Figure 3 A three-dimensional diagram of a special-shaped part clamping tool provided by the present invention when clamping a polygonal part;

[0024] Figure 4 for Figure 3 The main view;

[0025] Figure 5 for Figure 4 Sectional view in the AA direction;

[0026] Figure 6 for Figure 4 Schematic diagram of the cutaway in the AA direction;

[0027] Figure 7 for Figure 6 A magnified schematic diagram of part B;

[0028] Figure 8 for Figure 6 A magnified schematic diagram of part C;

[0029] Figure 9Schematic three-dimensional view of a special-shaped part clamping tool provided by the present invention after removing the U-shaped cover when clamping a polygonal part;

[0030] Figure 10 is Figure 9 Enlarged schematic view of part D in

[0031] Figure 11 Three-dimensional view of a special-shaped part clamping tool provided by the present invention when clamping an annular part.

[0032] Explanation of reference numerals and components involved in the drawings:

[0033] 1. Base; 2. Special-shaped part; 3. Movable adjustment block; 4. Fixed table; 5. Adjusting screw; 6. Threaded hole; 7. Dialing part; 8. C-shaped clamping seat; 9. C-shaped clamping groove; 10. Fixed plate; 11. Support plate; 12. Fixed screw; 13. Fixed magnet; 14. Movable positioning rod; 15. L-shaped locking rod; 16. Locking screw; 17. Movable through hole; 18. Movable magnetic disk; 19. Fixed sleeve; 20. Transverse threaded sleeve; 21. Transverse screw; 22. Transverse crank; 23. Plane adjustment support block; 24. First elastic buckle; 25. Limiting block; 26. Longitudinal threaded sleeve; 27. Longitudinal screw; 28. Longitudinal crank; 29. Square frame; 30. Rotating clamping shaft; 31. Second elastic buckle; 32. Clamping groove; 33. U-shaped frame; 34. Movable clamping ball; 35. U-shaped limiting groove; 36. U-shaped cover. Detailed implementation manners

[0034] The technical solutions of the present invention will be clearly and completely described below through specific implementation manners. 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.

[0035] See Figures 1 - 2As shown in the figure, a clamping tool for special-shaped parts includes a machine base 1, a height adjustment component, a plane adjustment component, a movable clamping member, and an edge adaptation component. Among them, the height adjustment component and the edge adaptation component are adjacent to each other on the machine base 1. The plane adjustment component includes a transverse adjustment unit and a longitudinal adjustment unit that are relatively perpendicular to each other. The transverse adjustment unit is fixedly arranged at one end of the machine base 1 where the height adjustment component is located. The longitudinal adjustment unit is fixedly connected with the movable clamping member and is fixedly connected with the transverse adjustment unit. The movable clamping member is placed on the height adjustment component and is arranged in the direction of the edge adaptation component. The movable clamping member has a movable adjustment block 3 that adapts to and adjusts the edge of the special-shaped part 2. The above-mentioned height adjustment component, transverse adjustment unit, and longitudinal adjustment unit respectively adjust the height and plane position of the movable clamping member relative to the special-shaped part 3. The movable adjustment block 3 on the movable clamping member cooperates with the edge adaptation component to fix the edge of the special-shaped part 2

[0036] Embodiment 1

[0037] See Figures 3 - 10 As shown in the figure, in this embodiment, taking the clamping of a polygonal part as an example, the structures of each component in this clamping tool are described in detail

[0038] The above-mentioned height adjustment component includes a fixed platform 4 and an adjustment screw 5. At least three corners of the fixed platform 4 are provided with threaded holes 6. In order to improve stability, in this embodiment, it is preferred to provide threaded holes 6 at all four corners of the fixed platform 4. The adjustment screw 5 is perpendicular to the machine base 1, and one end thereof abuts against the surface of the machine base 1, and the other end is threadedly connected to the threaded hole 6. By rotating the adjustment screw 5 to rotate it in the threaded hole 6, the height of the fixed platform 4 relative to the machine base 1 is adjusted. Since the outer surface of the adjustment screw 5 is covered with threads and lubricating oil is applied to it to improve the lubrication effect, it is inconvenient for the staff to manually rotate the adjustment screw 5. Therefore, a transfer piece 7 for manual rotation is sleeved on one end of the adjustment screw 5 located on the surface of the machine base 1

[0039] At the same time, when rotating the transfer piece 7 to rotate the adjustment screw 5, since the end surface of the adjustment screw 5 fits with the surface of the machine base 1 and one end thereof is threadedly connected to the threaded hole 6, in order to prevent the adjustment screw 5 from shifting on the surface of the machine base 1 during rotation, C-shaped clamping seats 8 are respectively convexly provided on the surface of the machine base 1 at positions corresponding to the adjustment screw 5, so that the transfer piece 7 and the adjustment screw 5 are both arranged in the C-shaped clamping seat 8 for limiting. Specifically, the inside of the C-shaped clamping seat 8 has a C-shaped clamping groove 9 and the C-shaped clamping seat 8 has an opening facing the side of the machine base 1. The end of the adjustment screw 5 and the transfer piece 7 are both embedded in the C-shaped clamping groove 9. The shape of the transfer piece 7 corresponds to the shape of the C-shaped clamping groove 9 and part of it is exposed outside the opening of the C-shaped clamping seat 8 so as to manually turn the transfer piece 7 to rotate the adjustment screw 5 to adjust the height of the fixed platform 4

[0040] The edge adaptation component includes a fixing plate 10 and a magnetic pole lifting unit. At the position of the edge adaptation component, the machine base 1 is vertically provided with a pair of parallel support plates 11. The fixing plate 10 is fixed on the support plates 11 by fixing screws 12. The magnetic pole lifting unit includes a fixed magnetic block 13 and a plurality of movable positioning rods 14. The fixed magnetic block 13 is fixed at the position of the machine base 1 between the two support plates 11, and an L-shaped locking rod 15 is arranged on its side and fixed to the machine base 1 by a locking screw 16. A plurality of movable through holes 17 are densely arranged in an array on the fixing plate 10. Each movable through hole 17 is correspondingly penetrated by a movable positioning rod 14, and a movable disk 18 with the same magnetic pole as the fixed magnetic block 13 is arranged at one end of the movable positioning rod 14 close to the fixed magnetic block 13. Therefore, there is a repulsive force between the fixed magnetic block 13 and the plurality of movable disks 18.

[0041] When the special-shaped part 2 is not placed on the fixing plate 10, the plurality of movable positioning rods 14 remain stationary with the fixing plate 10 through the repulsive force between the fixed magnetic block 13 and the movable disks 18. When the special-shaped part 2 is placed on the clamping tool, part of the special-shaped part 2 is placed on the fixed table 4 of the height adjustment component, and part is placed on the fixing plate 10 and covers part of the movable positioning rods 14. The covered movable positioning rods 14 move towards the fixed magnetic block 13, and the repulsive force between the fixed magnetic block 13 and the movable disks 18 acts on the special-shaped part 2 in the reverse direction to offset the gravity of the special-shaped part, so that the movable positioning rods 14 remain stationary with the special-shaped part 2. At the same time, the force on the special-shaped part in the vertical direction is not required to be uniform, and only the clamping in the horizontal direction needs to be maintained. The uncovered movable positioning rods 14 are abutted against part of the edge of the special-shaped part 2 placed on the edge adaptation component, so that the plurality of movable positioning rods 14 can adaptively adjust to the edge shape of the special-shaped part 2.

[0042] The lateral adjustment unit includes a fixed sleeve 19, a lateral threaded sleeve 20, a lateral screw rod 21 and a lateral crank 22. At one end of the machine base 1 where the height adjustment component is located, a plane adjustment support block 23 is vertically provided. Fixed sleeves 19 are vertically arranged at both ends of the plane adjustment support block 23. A lateral threaded sleeve 20 is fixed at the position of the plane adjustment support block 23 between the two fixed sleeves 19. The lateral screw rod 21 passes through the fixed sleeve 19 and the lateral threaded sleeve 20 respectively, and first elastic buckles 24 are sleeved at both ends and radially fixed to the fixed sleeve 19. The lateral screw rod 21 is threadedly connected with the lateral threaded sleeve 20, and a lateral crank 22 is fixed at any one end of the lateral screw rod 21. To prevent the lateral threaded sleeve 20 from shifting or falling off from the plane adjustment support block 23 during the rotation of the lateral screw rod 21, a reverse U-shaped limiting block 25 extends towards the plane adjustment support block 23 at the fixed connection of the lateral threaded sleeve 20 and the plane adjustment support block 23. The lateral threaded sleeve 20 is limited and fixed to the plane adjustment support block 23 by being embedded in the reverse U-shaped limiting block 25 through the plane adjustment support block 23.

[0043] The longitudinal adjustment unit includes a longitudinal threaded sleeve 26, a longitudinal screw 27, and a longitudinal crank 28. The longitudinal threaded sleeve 26 is fixedly arranged on the transverse threaded sleeve 20, and their projections on the horizontal plane are perpendicular to each other. The longitudinal screw 27 passes through the longitudinal threaded sleeve 26 and is threadedly connected therewith. A longitudinal crank 28 is fixed to one end of the longitudinal screw 27 away from the edge adaptation assembly, and the other end is fixedly connected to the movable clamping member through a connecting member. The connecting member includes a square frame 29, a rotating clamping shaft 30, and a second elastic buckle 31. The square frame 29 is fixed on the outer side surface of the movable clamping member, and a clamping groove 32 is arranged inside the square frame 29. A rotating clamping shaft 30 protrudes at one end of the longitudinal screw 27 where the longitudinal crank 28 is not provided. The rotating clamping shaft 30 is embedded in the clamping groove 32 of the square frame 29 and is sleeved with a second elastic buckle 31 which abuts and fixes against both sides of the clamping groove 32. By shaking the longitudinal crank 28, the longitudinal screw 27 moves along its axial direction inside the longitudinal threaded sleeve 26, and the movable clamping member is driven to move by the rotating clamping shaft 30 being embedded in the clamping groove 32 inside the square frame 29.

[0044] The movable clamping member further includes a U-shaped frame 33 and a plurality of movable clamping balls 34. The U-shaped frame 33 is recessed with a U-shaped limiting groove 35. At both ends of the U-shaped limiting groove 35, movable adjusting blocks 3 protrude respectively. The plurality of movable clamping balls 34 are sequentially embedded in the U-shaped limiting groove 35 and abut against the two movable adjusting blocks 3. A U-shaped cover 36 covering the U-shaped limiting groove 35 is arranged at the top of the U-shaped frame 33. The two movable adjusting blocks 3 can achieve adaptive abutting contact with the edge of the special-shaped part 2 through the force transmission between the plurality of movable clamping balls 34.

[0045] The specific clamping process is as follows:

[0046] First, adjust the height of the fixed table 4 according to the thickness and processing height of the special-shaped part 2 to be clamped. The staff manually rotates the adjusting members 7 at the ends of each adjusting screw 5 in sequence to adjust each adjusting screw 5, thereby adjusting the height of the fixed table 4 relative to the surface of the machine base 1. Since the adjusting screw 5 and the threaded hole 6 on the fixed table 4 are threadedly connected and have a self-locking function, after the fixed table 4 is adjusted to the appropriate height, the rotation of the adjusting screw 5 can be stopped. Based on the self-locking function between the adjusting screw 5 and the threaded hole 6, the fixed table 4 can maintain this height unchanged.

[0047] Secondly, place the special-shaped part 2 on the clamping tool. Part of the special-shaped part 2 is placed on the fixed table 4 with the adjusted height, and part is placed on the fixing plate 10 of the edge adaptation assembly. Since there are multiple movable positioning rods 14 densely arrayed on the fixing plate 10, when the special-shaped part 2 is placed on the fixing plate 10, the covered multiple movable positioning rods 14 move downward, and the uncovered movable positioning rods 14 correspond to and abut against the edge shape of the special-shaped part 2. The movable positioning rods 14 moving downward have the same magnetic poles between the movable disks 18 at their ends and the fixed magnets 13 at the bottom. Therefore, the repulsive force between the fixed magnets 13 and the movable disks 18 will act on the special-shaped part 2 in the reverse direction during the downward movement, so that the covered movable positioning rods 14 and the special-shaped part 2 remain stationary.

[0048] After that, adjust the relative position of the movable clamping member with respect to the special-shaped part 2 through the lateral adjustment unit and the longitudinal adjustment unit. The staff can shake the lateral crank 22 and the longitudinal crank 28 simultaneously, so that the lateral screw 21 and the longitudinal screw 27 move axially in the lateral thread sleeve 20 and the longitudinal thread sleeve 26 at the same time, so that the movable clamping member can move laterally and longitudinally in the plane to adjust the relative position with the special-shaped part 2. Since the threaded connections between the longitudinal screw 27 and the longitudinal thread sleeve 26, and between the lateral screw 21 and the lateral thread sleeve 20 have self-locking functions, the position of the movable clamping member can be ensured to remain unchanged.

[0049] Furthermore, the movable adjustment block 3 on the movable clamping member contacts the edge of the special-shaped part 2 and is adjusted according to the shape of the edge of the special-shaped part 2. The adaptation adjustment and contact abutment with the edge of the special-shaped part 2 are realized through the force transmission between the multiple movable clamping balls 34 arranged in the U-shaped limit groove 35. Finally, shake the longitudinal crank 28 to drive the longitudinal screw 27 to move so that the movable adjustment block 3 on the movable clamping member further abuts against the edge of the special-shaped part 2, and cooperates with the multiple movable positioning rods 14 that abut against the edge of the special-shaped part 2 in the edge adaptation assembly to lock and fix the special-shaped part 2 on this clamping tool.

[0050] Embodiment 2

[0051] See Figure 11 As shown, this embodiment is a schematic structural diagram of clamping a circular ring part on this clamping tool, and the rest of the structure is the same as that in Embodiment 1.

[0052] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clamping tool for special-shaped parts, characterized in that: It includes a machine base, a height adjustment component, a plane adjustment component, a movable clamping part and an edge adaptation component. The height adjustment component and the edge adaptation component are adjacently arranged on the machine base. The plane adjustment component includes a transverse adjustment unit and a longitudinal adjustment unit which are relatively vertically arranged. The transverse adjustment unit is fixedly arranged at one end of the machine base where the height adjustment component is located. The longitudinal adjustment unit is fixedly connected with the movable clamping part and fixedly connected with the transverse adjustment unit. The movable clamping part is placed on the height adjustment component and is arranged towards the edge adaptation component. The movable clamping part has a movable adjustment block for adapting and adjusting to the edge of the special-shaped part. The height adjustment component, the transverse adjustment unit and the longitudinal adjustment unit adjust the height and plane position of the movable clamping part relative to the special-shaped part. The movable adjustment block on the movable clamping part cooperates with the edge adaptation component to fix the edge of the special-shaped part; The edge adaptation component includes a fixed plate and a magnetic pole lifting unit. At the position of the machine base where the edge adaptation component is located, a pair of parallel support plates are vertically arranged. The fixed plate is fixed on the support plates by fixing screws. The magnetic pole lifting unit includes a fixed magnetic block and a plurality of movable positioning rods. The fixed magnetic block is fixed at the position of the machine base between the two support plates. The plurality of movable positioning rods are evenly and vertically passed through the fixed plate and a movable magnetic disk is arranged at one end close to the fixed magnetic block. The magnetic poles of the fixed magnetic block and the movable magnetic disk are the same. When the special-shaped part is not placed on the fixed plate, the plurality of movable positioning rods are stationary with the fixed plate through the repulsive force between the fixed magnetic block and the movable magnetic disk. When the special-shaped part is partially placed on the fixed plate and covers part of the movable positioning rods, the covered movable positioning rods move towards the fixed magnetic block direction, and act on the special-shaped part in the reverse direction through the repulsive force between the fixed magnetic block and the movable magnetic disk to keep it stationary with the special-shaped part. The uncovered movable positioning rods abut against part of the edge of the special-shaped part placed on the edge adaptation component; The movable clamping part further includes a U-shaped frame and a plurality of movable clamping balls. The U-shaped frame is recessed with a U-shaped limiting groove. The two ends of the U-shaped limiting groove are respectively convex with the movable adjustment blocks. The plurality of movable clamping balls are sequentially embedded in the U-shaped limiting groove and abut against the two movable adjustment blocks. A U-shaped cover covering the U-shaped limiting groove is arranged at the top of the U-shaped frame. The two movable adjustment blocks can achieve adaptive abutting contact with the edge of the special-shaped part through the force transmission between the plurality of movable clamping balls.

2. The special-shaped part clamping tool according to claim 1, wherein: The height adjustment component includes a fixed table and an adjustment screw. At least three corners of the fixed table are provided with threaded holes. One end of the adjustment screw abuts against the surface of the machine base, and the other end is threadedly connected with the threaded hole to adjust the height of the fixed table relative to the machine base. A dial part for manual rotation is sleeved at one end of the adjustment screw located on the surface of the machine base.

3. The special-shaped part clamping tool according to claim 2, characterized in that: At positions corresponding to the adjusting screw on the surface of the base, C-shaped clamping seats are respectively protruded. The interior of the C-shaped clamping seat has a C-shaped clamping groove and the C-shaped clamping seat has an opening facing the side of the base. The end of the adjusting screw and the dialing member are embedded in the C-shaped clamping groove. The shape of the dialing member corresponds to the shape of the C-shaped clamping groove and part of it is exposed from the opening of the C-shaped clamping seat so as to manually turn the dialing member to rotate the adjusting screw to adjust the height of the fixed table.

4. The clamping tool for special-shaped parts according to claim 1, characterized in that: An L-shaped locking rod is arranged on the side of the fixed magnet block and is fixed to the base through a locking screw. A plurality of movable through holes are arranged in an array on the fixing plate, and each of the movable through holes is correspondingly penetrated by the movable positioning rod.

5. The special-shaped part clamping tool according to claim 1, wherein: The lateral adjustment unit includes a fixed sleeve, a lateral threaded sleeve, a lateral screw and a lateral crank. At one end of the height adjustment component, the base is vertically provided with a planar adjustment support block. The fixed sleeves are respectively vertically arranged at both ends of the planar adjustment support block. The lateral threaded sleeve is fixed at a position between the two fixed sleeves on the planar adjustment support block. The lateral screw respectively passes through the fixed sleeve and the lateral threaded sleeve, and first elastic buckles are respectively sleeved at both ends for radial fixation with the fixed sleeve. The lateral screw is in threaded connection with the lateral threaded sleeve, and the lateral crank is fixed at any one end of the lateral screw.

6. The special-shaped part clamping tool according to claim 5, characterized in that: At the fixed connection position of the lateral threaded sleeve and the planar adjustment support block, a reverse U-shaped limiting block extends towards the planar adjustment support block direction. The lateral threaded sleeve is fixed to the reverse U-shaped limiting block embedded in the planar adjustment support block.

7. The special-shaped part clamping tool according to claim 5, wherein: The longitudinal adjustment unit includes a longitudinal threaded sleeve, a longitudinal screw and a longitudinal crank. The longitudinal threaded sleeve is fixedly arranged on the lateral threaded sleeve and their projections on the horizontal plane are perpendicular to each other. The longitudinal screw passes through the longitudinal threaded sleeve and they are in threaded connection. The longitudinal crank is fixed at one end of the longitudinal screw away from the edge adaptation component, and the other end is fixedly connected to the movable clamping member through a connecting member.

8. A clamping tool for special-shaped parts according to claim 7, characterized in that: The connecting member includes a square frame, a rotating clamping shaft and a second elastic buckle. The square frame is fixed on the outer side surface of the movable clamping member and a clamping groove is arranged inside the square frame. A rotating clamping shaft protrudes at one end of the longitudinal screw where the longitudinal crank is not arranged. The rotating clamping shaft is embedded in the clamping groove of the square frame and the second elastic buckle is sleeved and abutted and fixed against both sides of the clamping groove. By shaking the longitudinal crank, the longitudinal screw moves axially in the longitudinal threaded sleeve and the rotating clamping shaft is embedded in the clamping groove in the square frame to drive the movable clamping member to move.

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