Thin-wall part clamping tool

Abstract

The utility model relates to the technical field of clamping jigs. The thin-wall part clamping tool comprises a base, a mounting table is coaxially and fixedly arranged on the base, a fixing base is coaxially arranged on the mounting table, a plurality of first sliding rails are evenly arranged on the fixing base in the circumferential direction of the fixing base, and first sliding rods are slidably arranged in the first sliding rails; a circular-arc-shaped first abutting block is arranged at the end, away from the fixing base, of the first sliding rod, a driving assembly is arranged on the fixing base, an auxiliary fixing assembly is arranged on the fixing base in a sliding mode, a limiting sliding rail is arranged on the base, and a first limiting base and a second limiting base are arranged on the limiting sliding rail in a sliding mode; a two-way lead screw is rotationally arranged in the limiting sliding rail, and the first limiting base and the second limiting base are each provided with a stop assembly. The clamping device has the advantages that clamping is stable, force is easy to control, and thin-wall long-cylinder parts are not prone to deformation.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping fixture technical field, especially a thin -walled part clamping frock. BACKGROUND

[0002] The existing lathe machining rotating body part generally adopts pneumatic or hydraulic clamping piece to clamp workpiece, when machining particularly long and thin -walled precision parts, it is difficult to adjust the force of clamping, and too big force is easy to clamp deformation, and too small force is unstable.

[0003] But in prior art, the existing clamping fixture is used, many clamps are fixed by mutual clamping to product, but some thin -walled long -barrel parts are easy to damage, if mutual clamping is fixed, it is easy to cause thin -walled long -barrel part damage UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of prior art, the application provides a thin -walled part clamping frock.

[0005] The thin -walled part clamping frock provided by the application adopts the following technical scheme:

[0006] A thin -walled part clamping frock, comprising a base, the base is coaxially fixed with a stepped mounting table, the mounting table is coaxially provided with a fixed seat, a plurality of first sliding rails are uniformly arranged on the fixed seat along the circumference thereof, a first sliding rod is slidably arranged in the first sliding rail, a first abutting block in the shape of a circular arc is arranged on the end of the first sliding rod away from the fixed seat, a driving assembly for driving the first sliding rod to move along the first sliding rail is arranged on the fixed seat, an auxiliary fixing assembly is slidably arranged on the fixed seat, a limiting sliding rail is arranged on the base, a first limiting seat and a second limiting seat are slidably arranged on the limiting sliding rail, a bidirectional screw rod is rotatably arranged in the limiting sliding rail, the first limiting seat is threadedly connected with one end of the bidirectional screw rod, the second limiting seat is threadedly connected with the other end of the bidirectional screw rod, and a stop component is arranged on the first limiting seat and the second limiting seat.

[0007] By adopting the above technical scheme, when in use, the thin -walled long -barrel part is placed on the mounting table to play a preliminary fixing role, then the bidirectional screw rod is driven to rotate by the staff to drive the stop component to move synchronously to stop and fix the outer wall of the thin -walled long -barrel part, then the position of the auxiliary fixing assembly is adjusted, and then the first abutting block is driven to contact the inner wall of the thin -walled long -barrel part by the driving assembly, and the plurality of first abutting blocks abut the inner wall of the thin -walled long -barrel part at the same time, so that the thin -walled long -barrel part is fixed, and the thin -walled long -barrel part is not easy to deform.

[0008] Optionally, the driving assembly comprises a driven gear coaxially arranged on the fixed seat, a plurality of circular-arc-shaped sliding grooves are formed on the driven gear along the circumference of the driven gear, a plurality of the first sliding rods correspond to the plurality of sliding grooves one by one, a sliding block is arranged on the end of the first sliding rod away from the first abutting block, the sliding block is slidingly arranged in the sliding groove, a driving gear is rotatably arranged on the fixed seat, the driving gear is engaged with the driven gear, a cavity is arranged in the base, a rotating shaft is rotatably arranged in the base, one end of the rotating shaft is coaxially connected with the driving gear, a first worm wheel is coaxially arranged on the other end of the rotating shaft, a first worm is rotatably arranged on the base, the first worm is engaged with the first worm wheel, the other end of the first worm extends out of the base, and a cross-shaped groove is formed on the first worm.

[0009] By adopting the above technical scheme, the driving assembly can drive a plurality of first abutting blocks to move simultaneously, thereby abutting and fixing the inner wall of the thin-walled long-cylindrical part.

[0010] Optionally, the stop assembly comprises a limiting seat and a contact plate, the limiting seat is in V-shaped, the limiting seat is arranged on the top of the first limiting seat, and a plurality of springs are uniformly arranged on the contact plate, and the other ends of the plurality of springs are connected with the inner wall of the limiting seat.

[0011] By adopting the above technical scheme, under the action of the spring, the rigid contact between the thin-walled long-cylindrical part and the limiting seat is avoided, thereby avoiding the deformation of the thin-walled long-cylindrical part to a certain extent.

[0012] Optionally, the auxiliary fixing assembly comprises an auxiliary mounting seat and a plurality of supporting rods, the plurality of supporting rods are uniformly arranged along the circumference of the fixed seat, a plurality of mounting through holes are uniformly formed on the auxiliary mounting seat, the plurality of mounting through holes correspond to the plurality of supporting rods one by one, the auxiliary mounting seat is slidingly arranged on the supporting rods, a plurality of auxiliary sliding rails are uniformly arranged on the auxiliary mounting seat along the circumference of the auxiliary mounting seat, an auxiliary sliding rod is slidingly arranged in the auxiliary sliding rail, an auxiliary abutting block in circular-arc-shaped is arranged on the end of the auxiliary sliding rod away from the auxiliary mounting seat, an auxiliary wheel is rotatably arranged on the auxiliary mounting seat, a plurality of auxiliary sliding grooves in circular-arc-shaped are uniformly formed on the auxiliary wheel along the circumference of the auxiliary wheel, the plurality of auxiliary sliding rods correspond to the plurality of auxiliary sliding grooves one by one, an auxiliary sliding block is arranged on the end of the auxiliary sliding rod away from the auxiliary abutting block, and the auxiliary sliding block is slidingly arranged in the auxiliary sliding groove.

[0013] By adopting the technical scheme, the auxiliary mounting seat is slid along the length direction of the support rod, when sliding to the specified position, the connecting shaft is rotated to drive the auxiliary wheel to rotate, so that the plurality of auxiliary abutting blocks are in contact with the inner wall of the thin-walled long-cylindrical part at the same time, and the thin-walled long-cylindrical part is fixed, the thin-walled long-cylindrical part is fixed from different positions, and the fixing effect of the thin-walled long-cylindrical part is improved.

[0014] Optionally, a driving screw is rotationally arranged on the base, the driving screw is in threaded connection with the auxiliary mounting seat, one end of the driving screw extends into the cavity of the base, a second worm wheel is coaxially arranged on the driving screw, a second worm is rotationally arranged on the base, the second worm is in engagement with the second worm wheel, the other end of the second worm extends out of the base, and a driving cross groove is formed in the second worm.

[0015] By adopting the technical scheme, the wrench is rotated to drive the second worm to rotate synchronously, the second worm is rotated to drive the second worm wheel to rotate, and the second worm wheel is rotated to drive the driving screw to rotate, so that the auxiliary mounting seat is driven to move along the length direction of the support rod.

[0016] Optionally, a first limiting rod is slidably arranged in the first limiting seat, the limiting seat is arranged at one end of the first limiting rod away from the first limiting seat, a plurality of limiting holes are uniformly formed in the first limiting rod along the length direction of the first limiting rod, a positioning bolt is arranged at the top of the first limiting seat, one end of the positioning bolt is in threaded connection with the limiting hole, and a second limiting rod is slidably arranged in the second limiting seat.

[0017] By adopting the technical scheme, when the thin-walled long-cylindrical part is long, the first limiting rod is slid towards the direction away from the first limiting seat, when sliding to the specified position, the positioning bolt is inserted into the limiting hole corresponding to the current position, and then the positioning bolt is rotated to be in threaded connection with the limiting hole, so that the current position is fixed.

[0018] Optionally, an auxiliary support rod is arranged at one end of the support rod away from the fixing seat, and a connecting hole is formed in one end of the support rod away from the fixing seat.

[0019] By adopting the technical scheme, the auxiliary support rod is in threaded connection with the connecting hole, so that the length of the support rod is prolonged, and then the thin-walled long-cylindrical part with different lengths is clamped and fixed.

[0020] Optionally, a plurality of mounting holes are uniformly formed in the base.

[0021] By adopting the technical scheme, the multiple installation holes in different positions can facilitate workers to select the installation positions of bolts according to the site conditions, and improve the installation stability of the base during work.

[0022] The utility model has the following advantages:

[0023] 1. By setting up fixed base, first slide rail, first slide bar, first abutment block, drive assembly and stop component, can be fixed to thin wall long cylinder part in the process, still have the advantages such as clamping stability, degree of force easy control, thin wall long cylinder part is not easy to deform;

[0024] 2. By setting up auxiliary fixing assembly, can be fixed to thin wall long cylinder part from different positions, improved the fixing effect to thin wall long cylinder part;

[0025] 3. By setting up auxiliary support rod, can lengthen the length of support rod, and then facilitate to clamp and fix thin wall long cylinder part with different lengths. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure schematic view of the utility model;

[0027] Figure 2 It is the installation structure schematic view of the utility model stop component;

[0028] Figure 3 It is the installation structure schematic view of the utility model auxiliary fixing assembly;

[0029] Figure 4 It is the installation structure schematic view of the utility model drive assembly;

[0030] In the figure: 1, base; 11, mounting table; 12, fixed seat; 121, first sliding rail; 122, first sliding rod; 123, first abutment block; 13, limiting sliding rail; 131, first limiting seat; 132, second limiting seat; 133, bidirectional screw rod; 14, driving screw rod; 141, second worm gear; 142, second worm; 143, driving cross slot; 15, mounting hole; 2, driving assembly; 21, driven gear; 211, sliding groove; 212, sliding block; 22, driving gear; 23, rotating shaft; 24, first worm gear; 25, first worm; 26, cross slot; 3, auxiliary fixing assembly; 31, auxiliary mounting seat; 311, mounting through hole; 32, support rod; 33, auxiliary sliding rail; 34, auxiliary sliding rod; 35, auxiliary abutment block; 36, auxiliary wheel; 361, auxiliary sliding groove; 37, auxiliary sliding block; 38, connecting shaft; 4, stop assembly; 41, limiting seat; 42, contact plate; 43, spring; 44, first limiting rod; 441, limiting hole; 442, positioning bolt; 45, second limiting rod; 5, auxiliary support rod; 51, connecting hole. DETAILED DESCRIPTION

[0031] The utility model makes further description in combination with the drawings, but the protection scope of the utility model is not limited to the following.

[0032] As Figures 1 to 4As shown, a thin-walled part clamping tool, including a base 1, the base 1 is coaxially fixedly installed with a stepped mounting table 11, the mounting table 11 is composed of a plurality of cylinders with the same center, thereby forming a stepped shape, the mounting table 11 is coaxially installed with a fixed seat 12 away from one end of the base 1, a plurality of first sliding rails 121 are uniformly installed on the fixed seat 12 along the circumference thereof, a first sliding rod 122 is slidably installed in the first sliding rail 121, a first abutting block 123 in the shape of a circular arc is installed on one end of the first sliding rod 122 away from the fixed seat 12, a driving assembly 2 for driving the first sliding rod 122 to move along the first sliding rail 121 is installed on the fixed seat 12, an auxiliary fixing assembly 3 is slidably installed on the fixed seat 12, a limiting sliding rail 13 is installed on the base 1, a first limiting seat 131 and a second limiting seat 132 are slidably installed on the limiting sliding rail 13, a bidirectional screw 133 is rotatably installed in the limiting sliding rail 13, one end of the bidirectional screw 133 extends to the outside of the limiting sliding rail 13, and a driving installation groove is formed in the bidirectional screw 133, the first limiting seat 131 is threadedly connected with one end of the bidirectional screw 133, the second limiting seat 132 is threadedly connected with the other end of the bidirectional screw 133, and a stopper assembly 4 is installed on the first limiting seat 131 and the second limiting seat 132; in use, different thin-walled long cylindrical parts have different diameters, since the mounting table 11 is stepped, the thin-walled long cylindrical part is placed on the mounting table 11, thereby playing a preliminary fixing role, then the worker inserts a wrench tool into the driving installation groove, then rotates the wrench, thereby driving the bidirectional screw 133 to rotate synchronously, the bidirectional screw 133 drives the first limiting seat 131 and the second limiting seat 132 to move towards each other during rotation, thereby driving the stopper assembly 4 to move synchronously, thereby stopping and fixing the outer wall of the thin-walled long cylindrical part, then the position of the auxiliary fixing assembly 3 is adjusted according to the length of the current thin-walled long cylindrical part, then the driving assembly 2 drives a plurality of first sliding rods 122 to slide along the length direction of the corresponding first sliding rail 121, the first sliding rod 122 drives the first abutting block 123 to contact the inner wall of the thin-walled long cylindrical part during sliding, a plurality of first abutting blocks 123 simultaneously abut against the inner wall of the thin-walled long cylindrical part, thereby fixing the thin-walled long cylindrical part while clamping it stably, controlling the force easily, and preventing the thin-walled long cylindrical part from deforming.

[0033] As Figures 1 to 4As shown, the driving assembly 2 comprises a driven gear 21 coaxially rotatably mounted on the fixed seat 12, a plurality of circular-arc-shaped sliding grooves 211 are formed on the driven gear 21 along the circumference thereof, a plurality of first sliding rods 122 correspond to the plurality of sliding grooves 211 one by one, a sliding block 212 is mounted on the end of the first sliding rod 122 away from the first abutting block 123, the sliding block 212 is slidably mounted in the sliding groove 211, a driving gear 22 is rotatably mounted on the fixed seat 12, the driving gear 22 is engaged with the driven gear 21, a cavity is mounted in the bottom seat 1, a rotating shaft 23 is rotatably mounted in the bottom seat 1, one end of the rotating shaft 23 is coaxially connected with the driving gear 22, a first worm wheel 24 is coaxially mounted on the other end of the rotating shaft 23, a first worm 25 is rotatably mounted on the bottom seat 1, the first worm 25 is engaged with the first worm wheel 24, the other end of the first worm 25 extends out of the bottom seat 1, and a cross groove 26 is formed on the first worm 25; in use, the worker inserts a wrench into the cross groove 26, and then rotates the wrench, the wrench drives the worm to rotate synchronously in the process of rotation, the worm drives the first worm wheel 24 to rotate in the process of rotation, the first worm wheel 24 drives the rotating shaft 23 to rotate synchronously in the process of rotation, the rotating shaft 23 drives the driving gear 22 to rotate in the process of rotation, the driving gear 22 drives the driven gear 21 to rotate in the process of rotation, the driven gear 21 drives the sliding block 212 to move along the length direction of the sliding groove 211 in the process of rotation, so that the first sliding rod 122 moves along the length direction of the sliding groove 211, and then the first abutting block 123 abuts and fixes the inner wall of the thin-walled long-cylindrical part.

[0034] As shown in the figure, Figures 1 to 4 The stop assembly 4 comprises a limiting seat 41 and a contact plate 42, the limiting seat 41 is V-shaped, so as to facilitate the stop fixing of thin-walled long-cylindrical parts of different sizes, the limiting seat 41 is mounted on the top of the first limiting seat 131, a plurality of springs 43 are uniformly mounted on the contact plate 42, and the other ends of the plurality of springs 43 are connected with the inner wall of the limiting seat 41; in use, when the worker drives the bidirectional screw rod 133 to rotate, so as to stop and fix the outer wall of the thin-walled long-cylindrical part, the contact plate 42 will first contact the thin-walled long-cylindrical part, then the plurality of springs 43 are compressed, at this time the worker stops driving the bidirectional screw rod 133 to rotate, and under the action of the springs 43, the rigid contact between the thin-walled long-cylindrical part and the limiting seat 41 is avoided, so as to avoid the stop deformation of the thin-walled long-cylindrical part to a certain extent, and at the same time, the springs 43 have a tendency to restore to the original length after being compressed, so as to better stop and fix the thin-walled long-cylindrical part.

[0035] As shown in the figure, Figures 1 to 4As shown, the auxiliary fixing assembly 3 comprises an auxiliary mounting base 31 and a plurality of support rods 32 which are evenly arranged along the circumference of the fixing base 12, the auxiliary mounting base 31 is uniformly provided with a plurality of mounting through holes 311, the plurality of mounting through holes 311 correspond to the plurality of support rods 32 one by one, the auxiliary mounting base 31 is slidingly installed on the support rod 32, the auxiliary mounting base 31 is uniformly provided with a plurality of auxiliary sliding rails 33 along the circumference thereof, the auxiliary sliding rails 33 are slidingly installed with auxiliary sliding rods 34, the auxiliary sliding rods 34 are provided with arc-shaped auxiliary abutting blocks 35 at one end away from the auxiliary mounting base 31, the auxiliary mounting base 31 is rotatably installed with an auxiliary wheel 36, the auxiliary wheel 36 is uniformly provided with a plurality of arc-shaped auxiliary sliding grooves 361 along the circumference thereof, the plurality of auxiliary sliding rods 34 correspond to the plurality of auxiliary sliding grooves 361 one by one, the auxiliary sliding rods 34 are provided with auxiliary sliding blocks 37 at one end away from the auxiliary abutting blocks 35, the auxiliary sliding blocks 37 are slidingly installed in the auxiliary sliding grooves 361, the driven gear 21 is coaxially fixedly installed with a connecting shaft 38, the connecting shaft 38 is coaxially provided with a key block, the auxiliary wheel 36 is coaxially provided with a key groove, the key block is slidingly installed in the key groove, the other end of the connecting shaft 38 is coaxially connected with the auxiliary wheel 36, so that the auxiliary wheel 36 can move along the length direction of the connecting shaft 38, and the connecting shaft 38 can drive the auxiliary wheel 36 to rotate; in use, since the thin-walled long-cylindrical part has a certain length, in order to improve the fixing effect on the thin-walled long-cylindrical part, the auxiliary mounting base 31 is slidingly arranged along the length direction of the support rod 32, when sliding to a specified position, the worker drives the driving gear 22 to rotate, the driving gear 22 drives the driven gear 21 to rotate in the process of rotating, the driven gear 21 drives the connecting shaft 38 to rotate in the process of rotating, the connecting shaft 38 drives the auxiliary wheel 36 to rotate in the process of rotating, the auxiliary wheel 36 drives the auxiliary sliding block 37 to move along the length direction of the auxiliary sliding groove 361 in the process of rotating, so as to drive the auxiliary sliding rod 34 to move along the length direction of the auxiliary sliding rail 33, and then the auxiliary abutting block 35 is in contact with the inner wall of the thin-walled long-cylindrical part, a plurality of auxiliary abutting blocks 35 are in contact with the inner wall of the thin-walled long-cylindrical part at the same time, which assists in fixing the thin-walled long-cylindrical part and improves the fixing effect on the thin-walled long-cylindrical part.

[0036] As Figures 1 to 4As shown, the base 1 is rotatably mounted with a drive screw 14, the drive screw 14 is threadedly connected with the auxiliary mounting seat 31, the other end of the drive screw 14 extends into the cavity of the base 1, and a second worm wheel 141 is coaxially mounted on the drive screw 14, the base 1 is rotatably mounted with a second worm 142, the second worm 142 is engaged with the second worm wheel 141, the other end of the second worm 142 extends out of the base 1, and a drive cross slot 143 is formed in the second worm 142; in order to facilitate the adjustment of the working position of the auxiliary mounting seat 31, when it is necessary to adjust the position of the auxiliary mounting seat 31, the worker inserts a wrench into the drive cross slot 143, and then rotates the wrench, thereby driving the second worm 142 to rotate synchronously, the second worm 142 rotates in the process of driving the second worm wheel 141 to rotate, the second worm wheel 141 rotates in the process of driving the drive screw 14 to rotate, thereby driving the auxiliary mounting seat 31 to move along the length direction of the support rod 32.

[0037] As shown in the figure, Figures 1 to 4 The first limiting rod 44 is slidably mounted in the first limiting seat 131, the limiting seat 41 is mounted on one end of the first limiting rod 44 away from the first limiting seat 131, a plurality of limiting holes 441 are uniformly formed in the length direction of the first limiting rod 44, the top of the first limiting seat 131 is mounted with a positioning bolt 442, one end of the positioning bolt 442 is threadedly connected with the limiting hole 441, the second limiting rod 45 is slidably mounted in the second limiting seat 132, a plurality of limiting holes 441 are also formed in the length direction of the second limiting rod 45, the top of the second limiting seat 132 is also mounted with a positioning bolt 442, and the structure and size of the second limiting rod 45 are consistent with those of the first limiting rod 44; when the thin-walled long cylindrical part is long, in order to achieve better stopping effect, the first limiting rod 44 is slid in the direction away from the first limiting seat 131, when it is slid to the specified position, the positioning bolt 442 is inserted into the limiting hole 441 corresponding to the current position, and then the positioning bolt 442 is rotated to threadedly connect the positioning bolt 442 with the limiting hole 441, thereby fixing the current position.

[0038] As shown in the figure, Figures 1 to 4 The end of the support rod 32 away from the fixed seat 12 is mounted with an auxiliary support rod 5, a connecting hole 51 is formed in the end of the support rod 32 away from the fixed seat 12, and one end of the auxiliary support rod 5 is threadedly connected with the connecting hole 51; the worker aligns one end of the auxiliary support rod 5 with the end of the support rod 32 having the connecting hole 51, then rotates the auxiliary support rod 5 to threadedly connect the auxiliary support rod 5 with the connecting hole 51, thereby lengthening the support rod 32, and facilitating clamping and fixing of thin-walled long cylindrical parts with different lengths.

[0039] As shown in the figure, Figures 1 to 4As shown, the base 1 is uniformly provided with a plurality of mounting holes 15; the worker passes the bolt through the mounting hole 15, and then the base 1 is fixed on the machining machine tool or the machining table, and the plurality of mounting holes 15 at different positions can facilitate the worker to select the mounting position of the bolt according to the site condition, and improve the installation stability of the base 1 in the working process.

[0040] The implementation principle of the embodiment is: when in use, the thin-walled long-cylinder part is placed on the mounting table 11 to play a preliminary fixing role, then the worker drives the bidirectional screw rod 133 to rotate, thereby driving the stopper assembly 4 to move synchronously, thereby stopping and fixing the outer wall of the thin-walled long-cylinder part, then the position of the auxiliary fixing assembly 3 is adjusted, and then the first abutting block 123 is driven by the driving assembly 2 to contact the inner wall of the thin-walled long-cylinder part, and the plurality of first abutting blocks 123 simultaneously abut the inner wall of the thin-walled long-cylinder part, thereby fixing the thin-walled long-cylinder part while clamping it stably, controlling the force easily, and preventing the thin-walled long-cylinder part from being deformed.

[0041] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any skilled person in the art can make many possible changes and modifications to the technical solution of the present application, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the present application. Therefore, any modification, equivalent change and modification of the above embodiments made according to the technical solution of the present application, which does not depart from the content of the technical solution of the present application, belongs to the protection scope of the present application.

Claims

1. A clamping fixture for thin-walled parts, characterized in that: The system includes a base (1), on which a stepped mounting platform (11) is coaxially fixed. A fixed seat (12) is coaxially mounted on the mounting platform (11). Multiple first slide rails (121) are evenly arranged along the circumference of the fixed seat (12). A first slide rod (122) is slidably arranged inside the first slide rail (121). An arc-shaped first abutment block (123) is provided at one end of the first slide rod (122) away from the fixed seat (12). A drive assembly (2) is provided on the fixed seat (12) to drive the first slide rod (122) to move along the first slide rail (121). An auxiliary fixing component (3) is slidably arranged on the fixed base (12), and a limiting slide rail (13) is provided on the base (1). A first limiting seat (131) and a second limiting seat (132) are slidably arranged on the limiting slide rail (13). A bidirectional screw rod (133) is rotatably arranged inside the limiting slide rail (13). The first limiting seat (131) is threadedly connected to one end of the bidirectional screw rod (133), and the second limiting seat (132) is threadedly connected to the other end of the bidirectional screw rod (133). A stop component (4) is provided on both the first limiting seat (131) and the second limiting seat (132).

2. The thin-walled part clamping fixture according to claim 1, characterized in that: The drive assembly (2) includes a driven gear (21), which is coaxially rotatably mounted on a fixed base (12). The driven gear (21) has multiple arc-shaped grooves (211) along its circumference. Multiple first sliding rods (122) correspond one-to-one with the multiple grooves (211). A slider (212) is provided at the end of each first sliding rod (122) away from the first abutment block (123). The slider (212) is slidably mounted within the groove (211). A drive gear (22) is rotatably mounted on the fixed base (12). The driving gear (22) meshes with the driven gear (21). The base (1) has a cavity inside. A rotating shaft (23) is rotatably arranged inside the base (1). One end of the rotating shaft (23) is coaxially connected to the driving gear (22). The other end of the rotating shaft (23) is coaxially arranged with a first worm gear (24). A first worm (25) is rotatably arranged on the base (1). The first worm (25) meshes with the first worm gear (24). The other end of the first worm (25) extends outside the base (1). A cross groove (26) is opened on the first worm (25).

3. The thin-walled part clamping fixture according to claim 1, characterized in that: The stop assembly (4) includes a limiting seat (41) and a contact plate (42). The limiting seat (41) is V-shaped and is located on the top of the first limiting seat (131). Multiple springs (43) are evenly arranged on the contact plate (42), and the other ends of the multiple springs (43) are connected to the inner wall of the limiting seat (41).

4. The thin-walled part clamping fixture according to claim 2, characterized in that: The auxiliary fixing component (3) includes an auxiliary mounting base (31) and multiple support rods (32). The multiple support rods (32) are evenly arranged along the circumference of the fixing base (12). The auxiliary mounting base (31) is evenly provided with multiple mounting through holes (311), and each of the multiple mounting through holes (311) corresponds to one of the multiple support rods (32). The auxiliary mounting base (31) is slidably mounted on the support rods (32). The auxiliary mounting base (31) is evenly provided with multiple auxiliary slide rails (33) along its own circumference. An auxiliary slide rod (34) is slidably mounted in the auxiliary slide rail (33). The auxiliary slide rod (34) is located away from the auxiliary mounting base (31). An auxiliary abutment block (35) in the shape of an arc is provided at one end. An auxiliary wheel (36) is rotatably provided on the auxiliary mounting base (31). Multiple auxiliary grooves (361) in the shape of an arc are evenly provided on the auxiliary wheel (36) along its circumference. Multiple auxiliary sliding rods (34) correspond one-to-one with multiple auxiliary grooves (361). An auxiliary slider (37) is provided at the end of the auxiliary sliding rod (34) away from the auxiliary abutment block (35). The auxiliary slider (37) is slidably provided in the auxiliary groove (361). A connecting shaft (38) is coaxially fixedly provided on the driven gear (21). The other end of the connecting shaft (38) is coaxially connected to the auxiliary wheel (36).

5. A thin-walled part clamping fixture according to claim 4, characterized in that: A drive screw (14) is rotatably mounted on the base (1). The drive screw (14) is threadedly connected to the auxiliary mounting base (31). The other end of the drive screw (14) extends into the cavity of the base (1). A second worm gear (141) is coaxially mounted on the drive screw (14). A second worm (142) is rotatably mounted on the base (1). The second worm (142) meshes with the second worm gear (141). The other end of the second worm (142) extends outside the base (1). A drive cross groove (143) is provided on the second worm (142).

6. The thin-walled part clamping fixture according to claim 3, characterized in that: A first limiting rod (44) is slidably disposed inside the first limiting seat (131). The limiting seat (41) is disposed at the end of the first limiting rod (44) away from the first limiting seat (131). A plurality of limiting holes (441) are evenly opened on the first limiting rod (44) along its own length direction. A positioning bolt (442) is disposed on the top of the first limiting seat (131). One end of the positioning bolt (442) is threadedly connected to the limiting hole (441). A second limiting rod (45) is slidably disposed inside the second limiting seat (132). The structure of the second limiting rod (45) is the same as that of the first limiting rod (44).

7. A thin-walled part clamping fixture according to claim 4, characterized in that: An auxiliary support rod (5) is provided at one end of the support rod (32) away from the fixed seat (12). A connecting hole (51) is provided at one end of the support rod (32) away from the fixed seat (12). One end of the auxiliary support rod (5) is threadedly connected to the connecting hole (51).

8. A thin-walled part clamping fixture according to claim 1, characterized in that: The base (1) has a plurality of mounting holes (15) evenly distributed on it.

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