CN224027039U - Thin-wall part clamping tool - Google Patents

Abstract

This utility model relates to the field of clamping fixture technology. Specifically, it discloses a clamping fixture for thin-walled parts, including a base, a mounting platform coaxially fixed on the base, a fixing seat coaxially mounted on the mounting platform, a plurality of first slide rails evenly arranged along the circumference of the fixing seat, a first slide rod slidably mounted within the first slide rail, and an arc-shaped first abutment block mounted on the end of the first slide rod away from the fixing seat. A driving assembly is mounted on the fixing seat, an auxiliary fixing assembly is slidably mounted on the fixing seat, a limiting slide rail is mounted on the base, a first limiting seat and a second limiting seat are slidably mounted on the limiting slide rail, a bidirectional lead screw is rotatably mounted within the limiting slide rail, and a stop assembly is mounted on both the first and second limiting seats. The advantages of this utility model are stable clamping, easy control of force, and resistance to deformation of thin-walled long cylindrical parts.

Description

Thin-wall part clamping tool

Technical Field

The utility model relates to the technical field of clamping tools, in particular to a thin-wall part clamping tool.

Background

In the conventional lathe for machining a rotating body part, a pneumatic or hydraulic clamping member is generally used for clamping a workpiece. When processing especially long and thin wall precision parts, the dynamics of difficult adjustment centre gripping, dynamics too big easily press from both sides the deformation, and the dynamics is too little then the centre gripping is unstable.

However, in the prior art, when the existing clamping fixtures are used, a plurality of fixtures clamp and fix the products mutually, but some thin-wall long barrel parts are easy to damage, if the thin-wall long barrel parts are clamped and fixed mutually, the thin-wall long barrel parts are easy to damage

Disclosure of utility model

In order to overcome the defects of the prior art, the application provides a thin-wall part clamping tool.

The application provides a thin-wall part clamping tool, which adopts the following technical scheme:

The utility model provides a thin-walled workpiece clamping fixture, includes the base, coaxial fixed being provided with the mount table that is the echelonment on the base, coaxial being provided with the fixing base on the mount table, evenly be provided with a plurality of first slide rails along self circumference on the fixing base, the slip is provided with first slide bar in the first slide rail, the one end of keeping away from the fixing base on the first slide bar is provided with the first butt piece that is convex, be provided with the actuating assembly that is used for driving first slide bar to remove along first slide rail on the fixing base, it is provided with auxiliary fixing assembly to slide on the fixing base, be provided with spacing slide rail on the base, the last slip of spacing slide rail is provided with first spacing seat and the spacing seat of second, spacing slide rail internal rotation is provided with two-way lead screw, the one end threaded connection of first spacing seat and two-way lead screw, all be provided with stop assembly on first spacing seat and the spacing seat of second.

Through adopting above-mentioned technical scheme, during the use, place the long section of thick bamboo part of thin wall on the mount table, play preliminary fixed action, then the staff orders about two-way lead screw and rotates to drive the synchronous removal of backstop subassembly, thereby it is fixed to carry out the backstop to the outer wall of the long section of thick bamboo part of thin wall, then adjust auxiliary fixation subassembly's position, the rethread drive assembly orders about first butt piece and the inner wall contact of the long section of thick bamboo part of thin wall, a plurality of first butt pieces carry out the butt simultaneously to the long section of thick bamboo part inner wall of thin wall, thereby when fixing the long section of thick bamboo part of thin wall, still have the centre gripping stability, the dynamics is easy to control, the difficult flexible advantage of the long section of thick bamboo part of thin wall.

Optionally, the drive assembly includes driven gear, driven gear coaxial rotation sets up on the fixing base, a plurality of spouts that are circular arc have been seted up along self circumference on the driven gear, and is many first slide bar and a plurality of spout one-to-one, the one end that first butt piece was kept away from to first slide bar is provided with the slider, the slider slides and sets up in the spout, it is provided with the driving gear to rotate on the fixing base, driving gear and driven gear meshing, the inside of base is provided with the cavity, the rotation is provided with the pivot in the base, the one end and the coaxial linking to each other of driving gear of pivot, the other end coaxial being provided with of pivot is provided with first worm wheel, rotate on the base and be provided with first worm, first worm and first worm wheel meshing, the other end of first worm extends to outside the base to the cross groove has been seted up on the first worm.

Through adopting above-mentioned technical scheme, drive assembly can order about a plurality of first butt pieces and remove simultaneously to the inner wall to the long section of thick bamboo part of thin wall carries out the butt fixedly.

Optionally, the backstop subassembly includes spacing seat and contact plate, spacing seat is the V style of calligraphy, spacing seat sets up the top at first spacing seat, evenly be provided with many springs on the contact plate, many the other end of spring all links to each other with the inner wall of spacing seat.

By adopting the technical scheme, under the action of the spring, the rigid contact between the thin-wall long cylinder part and the limiting seat is avoided, so that the stop deformation of the thin-wall long cylinder part is avoided to a certain extent.

Optionally, the auxiliary fixing assembly includes auxiliary installation seat and many spinal branch vaulting poles, many the bracing piece evenly sets up along the circumference of fixing base, evenly set up a plurality of installation through-holes on the auxiliary installation seat, it is a plurality of the installation through-hole and many spinal branch vaulting poles one-to-one, auxiliary installation seat slides and sets up on the bracing piece, evenly be provided with a plurality of auxiliary slide rails along self circumference on the auxiliary installation seat, the slip is provided with auxiliary slide bar in the auxiliary slide rail, the one end of keeping away from auxiliary installation seat on the auxiliary slide bar is provided with the supplementary butt piece that is convex, rotate on the auxiliary installation seat and set up the auxiliary wheel, a plurality of auxiliary slide bars and a plurality of along self circumference evenly set up a plurality of auxiliary slide grooves one-to-one, auxiliary slide bar keeps away from the one end of auxiliary butt piece and is provided with auxiliary slide block, auxiliary slide block slides and sets up in auxiliary slide groove, driven gear coaxial fixedly is provided with the connecting axle, the other end and the coaxial linking to each other of auxiliary wheel of connecting axle.

Through adopting above-mentioned technical scheme, slide auxiliary mount pad along the length direction of bracing piece, when sliding to the assigned position, connecting axle pivoted in-process will drive auxiliary wheel and rotate to a plurality of supplementary butt pieces simultaneously with the inner wall contact of the long section of thick bamboo part of thin wall, and then play supplementary fixedly to the long section of thick bamboo part of thin wall, fix the long section of thick bamboo part of thin wall from different positions, improved the fixed effect to the long section of thick bamboo part of thin wall.

Optionally, the rotation is provided with the drive lead screw on the base, drive lead screw and auxiliary mount pad threaded connection, the other end of drive lead screw extends to in the cavity of base, and coaxial second worm wheel that is provided with on the drive lead screw, the rotation is provided with the second worm on the base, second worm and second worm wheel meshing, the other end of second worm extends to outside the base, and drive cross groove has been seted up on the second worm.

Through adopting above-mentioned technical scheme, rotate the spanner to drive second worm synchronous rotation, second worm pivoted in-process will drive the second worm wheel and rotate, second worm wheel pivoted in-process will drive the drive lead screw and rotate, thereby drive supplementary mount pad and remove along the length direction of bracing piece.

Optionally, the first spacing seat is provided with first gag lever post in the sliding, the one end of first spacing seat is kept away from to the gag lever post setting at first gag lever post, a plurality of spacing holes have evenly been seted up along self length direction on the first gag lever post, the top of first spacing seat is provided with positioning bolt, positioning bolt's one end and spacing hole threaded connection, the second is provided with the second gag lever post in the sliding of second spacing seat, the structure of second gag lever post is unanimous with first gag lever post.

Through adopting above-mentioned technical scheme, when the long section of thick bamboo part of thin wall is longer, in order to play better backstop effect, slide first gag lever post towards the direction of keeping away from first spacing seat, when sliding to the assigned position, insert locating bolt in the spacing hole that current position corresponds, then rotate locating bolt, make locating bolt and spacing hole threaded connection to fix current position.

Optionally, the one end that the fixing base was kept away from to the bracing piece sets up auxiliary stay pole, the connecting hole has been seted up to the one end that the fixing base was kept away from to the bracing piece, auxiliary stay pole's one end and connecting hole threaded connection.

Through adopting above-mentioned technical scheme, make auxiliary stay pole and connecting hole threaded connection to the length of extension bracing piece, and then be convenient for carry out the centre gripping to the long section of thick bamboo part of thin wall that has different length and fix.

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

Through adopting above-mentioned technical scheme, the mounting hole of a plurality of different positions can be convenient for the staff select the mounted position of bolt according to the scene condition, improves the mounting stability of base in the course of the work.

The utility model has the following advantages:

1. By arranging the fixing seat, the first sliding rail, the first sliding rod, the first abutting block, the driving assembly and the stop assembly, the thin-wall long cylinder part can be fixed, and meanwhile, the clamping device has the advantages of stable clamping, easiness in controlling force and difficulty in deforming the thin-wall long cylinder part;

2. By arranging the auxiliary fixing component, the thin-wall long cylinder part can be fixed from different positions, and the fixing effect on the thin-wall long cylinder part is improved;

3. through setting up auxiliary stay pole to can prolong the length of bracing piece, and then be convenient for carry out the centre gripping to the long section of thick bamboo part of thin wall that has different length and fix.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the mounting structure of the stop assembly of the present utility model;

FIG. 3 is a schematic view of the mounting structure of the auxiliary fixing assembly of the present utility model;

FIG. 4 is a schematic view of the mounting structure of the drive assembly of the present utility model;

the device comprises a base, a mounting table, a fixed seat, a first sliding rail, 122, a first sliding rod, 123, a first abutting block, 13, a limiting sliding rail, 131, a first limiting seat, 132, a second limiting seat, 133, a bidirectional screw rod, 14, a driving screw rod, 141, a second worm wheel, 142, a second worm, 143, a driving cross groove, 15, a mounting hole, 2, a driving component, 21, a driven gear, 211, a sliding groove, 212, a sliding block, 22, a driving gear, 23, a rotating shaft, 24, a first worm wheel, 25, a first worm, 26, a cross groove, 3, an auxiliary fixing component, 31, an auxiliary mounting seat, 311, a mounting through hole, 32, a supporting rod, 33, an auxiliary sliding rail, 34, an auxiliary sliding rod, 35, an auxiliary abutting block, 36, an auxiliary wheel, 361, an auxiliary sliding groove, 37, an auxiliary sliding block, 38, a connecting shaft, 4, a stop component, 41, a limiting seat, 42, a contact plate, 43, a spring, 44, a first limiting rod, 441, a limiting hole, 442, a positioning bolt, 45, a second supporting rod, 51, and a connecting hole.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.

As shown in fig. 1 to 4, a thin-walled workpiece clamping fixture comprises a base 1, wherein a stepped installation table 11 is coaxially and fixedly installed on the base 1, the installation table 11 is composed of a plurality of cylinders with the same circle center, so that a stepped installation table 11 is formed, one end, far away from the base 1, of the installation table 11 is coaxially provided with a fixed seat 12, a plurality of first sliding rails 121 are uniformly installed on the fixed seat 12 along the circumferential direction of the fixed seat 12, a first sliding rod 122 is installed in the first sliding rail 121 in a sliding manner, one end, far away from the fixed seat 12, of the first sliding rod 122 is provided with a first abutting block 123 in a circular arc shape, 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 installed on the fixed seat 12 in a sliding manner, a limit sliding rail 13 is installed on the base 1, a first limit seat 131 and a second limit seat 132 are installed on the limit sliding manner, a bidirectional screw rod 133 is rotatably installed on the limit sliding rail 13, one end of the bidirectional screw rod 133 extends to the outside of the limit sliding rail 13, a driving installation groove is formed in the bidirectional screw rod 133, one end of the bidirectional screw rod 133 is connected with the limit seat 132 in a threaded manner with the other end of the limit seat 4, and the limit seat 133 is connected with the limit seat 132 in a threaded manner with the other end of the limit seat 4; when in use, different thin-wall long cylinder parts have different diameters, because the mounting table 11 is in a ladder shape, the thin-wall long cylinder parts are placed on the mounting table 11 to play a primary fixing role, then a worker uses a wrench tool to insert and drive the mounting groove, then rotates the wrench, thereby driving the bidirectional screw rod 133 to synchronously rotate, the first limit seat 131 and the second limit seat 132 are driven to move towards the directions approaching to each other in the rotating process of the bidirectional screw rod 133, thereby drive the synchronous removal of backstop subassembly 4 to carry out the backstop to the outer wall of long section of thick bamboo part of thin wall and fix, then according to the length of the long section of thick bamboo part of current thin wall, adjust the position of supplementary fixed subassembly 3, rethread drive assembly 2 order about many first slide bars 122 all along the length direction slip of self corresponding first slide rail 121, the gliding in-process of first slide bar 122 will drive first butt piece 123 and the inner wall contact of long section of thick bamboo part of thin wall, a plurality of first butt pieces 123 carry out the butt simultaneously to the long section of thick bamboo part of thin wall, thereby fix the long section of thick bamboo part of thin wall, the centre gripping is stable, the dynamics is easily controlled, the long section of thick bamboo part of thin wall is difficult for warping.

As shown in fig. 1 to 4, the driving assembly 2 comprises a driven gear 21, the driven gear 21 is coaxially and rotatably mounted on a fixed seat 12, a plurality of circular arc-shaped sliding grooves 211 are formed in the driven gear 21 along the circumferential direction of the driven gear 21, a plurality of first sliding rods 122 are in one-to-one correspondence with the sliding grooves 211, one ends of the first sliding rods 122, far away from the first abutting blocks 123, are provided with sliding blocks 212, the sliding blocks 212 are slidably mounted in the sliding grooves 211, a driving gear 22 is rotatably mounted on the fixed seat 12, the driving gear 22 is meshed with the driven gear 21, a cavity is formed in the base 1, a rotating shaft 23 is rotatably mounted in the base 1, one end of the rotating shaft 23 is coaxially connected with the driving gear 22, a first worm wheel 24 is coaxially mounted at the other end of the rotating shaft 23, a first worm 25 is rotatably mounted on the base 1, the first worm 25 is meshed with the first worm wheel 24, the other end of the first worm 25 extends out of the base 1, and a cross groove 26 is formed in the first worm 25, when the first worm 25 is used, a wrench is inserted into the cross groove 26, the sliding blocks 212 are rotated, the wrench is driven by a wrench, the wrench is synchronously rotated, the worm is driven by the wrench, the worm wheel is driven by the rotating process, the worm wheel 24 is driven by the first worm wheel 24 to rotate the first worm wheel 24 to drive the first worm wheel 24 to rotate along the length of the driving groove 22, and then the first worm wheel 22 is driven by the first worm 22 to rotate along the length of the first worm groove, and then the first worm wheel 22 is driven by the first worm 22 and the first worm 22 rotates along the length of the first worm groove 22, and then drives the first worm 22 and the first worm 22.

As shown in fig. 1 to 4, the stop assembly 4 comprises a limit seat 41 and a contact plate 42, wherein the limit seat 41 is V-shaped, so that stop fixing is conveniently carried out on thin-wall long barrel parts with different sizes, the limit seat 41 is arranged at the top of the first limit seat 131, a plurality of springs 43 are uniformly arranged on the contact plate 42, the other ends of the springs 43 are connected with the inner wall of the limit seat 41, when in use, a worker drives a bidirectional screw rod 133 to rotate, so that stop fixing is carried out on the outer wall of the thin-wall long barrel part, the contact plate 42 is firstly contacted with the thin-wall long barrel part, then the springs 43 are compressed, at the moment, the worker stops driving the bidirectional screw rod 133 to rotate, rigid contact between the thin-wall long barrel part and the limit seat 41 is avoided under the action of the springs 43, so that stop deformation of the thin-wall long barrel part is avoided to a certain extent, and meanwhile, the springs 43 are compressed and have a trend of recovering to the original length, so that the thin-wall long barrel part can be better stop fixed.

As shown in fig. 1 to 4, the auxiliary fixing assembly 3 includes an auxiliary mounting seat 31 and a plurality of support rods 32, the plurality of support rods 32 are uniformly arranged along the circumferential direction of the fixed seat 12, a plurality of mounting through holes 311 are uniformly formed in the auxiliary mounting seat 31, the plurality of mounting through holes 311 are in one-to-one correspondence with the plurality of support rods 32, the auxiliary mounting seat 31 is slidably mounted on the support rods 32, a plurality of auxiliary sliding rails 33 are uniformly mounted on the auxiliary mounting seat 31 along the circumferential direction thereof, an auxiliary sliding rod 34 is slidably mounted on the auxiliary sliding rail 33, an auxiliary abutting block 35 which is in a circular arc shape is mounted at one end of the auxiliary sliding rod 34 far away from the auxiliary mounting seat 31, an auxiliary wheel 36 is rotatably mounted on the auxiliary mounting seat 31, a plurality of auxiliary sliding grooves 361 which are in a circular arc shape are uniformly formed in the auxiliary wheel 36 along the circumferential direction thereof, an auxiliary sliding block 37 is mounted at one end of the auxiliary sliding rod 34 far away from the auxiliary sliding grooves 361, a connecting shaft 38 is fixedly mounted coaxially on the driven gear 21, a key block 36 is coaxially mounted on the connecting shaft 38, a key block 36 is coaxially mounted on the connecting shaft 36, and the key block 36 is coaxially connected coaxially along the key block 36, and the key block 36 can be rotatably connected along the length direction of the key block 38; when in use, because the thin-wall long cylinder part has a certain length, in order to improve the fixing effect on the thin-wall long cylinder part, the auxiliary mounting seat 31 slides along the length direction of the supporting rod 32, when the auxiliary mounting seat slides to a designated position, a worker drives the driving gear 22 to rotate, the driven gear 21 is driven to rotate in the rotating process of the driving gear 22, the driven gear 21 rotates the in-process and drives the connecting shaft 38 to rotate, the connecting shaft 38 rotates the auxiliary wheel 36, the auxiliary wheel 36 rotates the in-process and drives the auxiliary slide block 37 to move along the length direction of the auxiliary slide groove 361, so that the auxiliary slide bar 34 is driven to move along the length direction of the auxiliary slide rail 33, the auxiliary abutting blocks 35 are contacted with the inner wall of the thin-wall long barrel part, the plurality of auxiliary abutting blocks 35 are contacted with the inner wall of the thin-wall long barrel part at the same time, the thin-wall long barrel part is fixed in an auxiliary mode, and the fixing effect of the thin-wall long barrel part is improved.

As shown in fig. 1 to 4, a driving screw 14 is rotatably mounted on the base 1, the driving screw 14 is in threaded connection with the auxiliary mounting seat 31, the other end of the driving screw 14 extends into a cavity of the base 1, a second worm wheel 141 is coaxially mounted on the driving screw 14, a second worm 142 is rotatably mounted on the base 1, the second worm 142 is meshed with the second worm wheel 141, the other end of the second worm 142 extends out of the base 1, and a driving cross groove 143 is formed in the second worm 142, when the position of the auxiliary mounting seat 31 needs to be adjusted, a worker inserts into the driving cross groove 143 by using a wrench, then rotates the wrench, so that the second worm 142 is driven to synchronously rotate, the second worm wheel 141 is driven to rotate in the process of rotating the second worm 142, the driving screw 14 is driven to rotate in the process of rotating the second worm wheel 141, and the auxiliary mounting seat 31 is driven to move along the length direction of the support rod 32.

As shown in fig. 1 to 4, the first limiting seat 131 is slidably provided with the first limiting rod 44, the limiting seat 41 is mounted at one end of the first limiting rod 44 far away from the first limiting seat 131, a plurality of limiting holes 441 are uniformly formed in the first limiting rod 44 along the length direction of the first limiting seat 131, the top of the first limiting seat 131 is provided with a positioning bolt 442, one end of the positioning bolt 442 is in threaded connection with the limiting holes 441, the second limiting seat 132 is slidably provided with the second limiting rod 45, the second limiting rod 45 is also provided with a plurality of limiting holes 441 along the length direction of the second limiting seat 45, the top of the second limiting seat 132 is also provided with a positioning bolt 442, and the structure and the size of the second limiting rod 45 are consistent with those of the first limiting rod 44.

As shown in fig. 1 to 4, an auxiliary supporting rod 5 is mounted at one end of the supporting rod 32 far away from the fixed seat 12, a connecting hole 51 is formed at one end of the supporting rod 32 far away from the fixed seat 12, one end of the auxiliary supporting rod 5 is in threaded connection with the connecting hole 51, a worker aligns one end of the auxiliary supporting rod 5 with one end of the supporting rod 32 with the connecting hole 51, then rotates the auxiliary supporting rod 5 to enable the auxiliary supporting rod 5 to be in threaded connection with the connecting hole 51, and accordingly the length of the supporting rod 32 is prolonged, and clamping and fixing of thin-wall long barrel parts with different lengths are facilitated.

As shown in fig. 1 to 4, a plurality of mounting holes 15 are uniformly formed in the base 1, a worker passes bolts through the mounting holes 15, then the base 1 is conveniently fixed on a processing machine tool or a processing table, and the mounting holes 15 at different positions can facilitate the worker to select the mounting positions of the bolts according to the site conditions, so that the mounting stability of the base 1 in the working process is improved.

The implementation principle of the embodiment is that when the thin-wall long cylinder part is used, the thin-wall long cylinder part is placed on the mounting table 11 to play a primary fixing role, then a worker drives the bidirectional screw rod 133 to rotate, so that the stop component 4 is driven to move synchronously, the outer wall of the thin-wall long cylinder part is stopped and fixed, then the position of the auxiliary fixing component 3 is adjusted, the first abutting blocks 123 are driven to contact with the inner wall of the thin-wall long cylinder part through the driving component 2, the inner walls of the thin-wall long cylinder parts are abutted simultaneously by the first abutting blocks 123, and therefore the thin-wall long cylinder part is fixed, and meanwhile, the clamping is stable, the force is easy to control, and the thin-wall long cylinder part is not easy to deform.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present utility model fall within the protection scope of the present utility model.

Claims (8)

1. The fixture is characterized by comprising a base (1), wherein a stepped mounting table (11) is coaxially and fixedly arranged on the base (1), a fixing seat (12) is coaxially arranged on the mounting table (11), a plurality of first sliding rails (121) are uniformly arranged on the fixing seat (12) along the circumferential direction of the fixing seat, a first sliding rod (122) is arranged in the first sliding rail (121) in a sliding manner, a first abutting block (123) which is arc-shaped is arranged at one end of the first sliding rod (122) far away from the fixing seat (12), a driving assembly (2) which is used for driving the first sliding rod (122) to move along the first sliding rail (121) is arranged on the fixing seat (12), an auxiliary fixing assembly (3) is arranged on the fixing seat (12) in a sliding manner, a limit sliding rail (13) is arranged on the base (1), a first limit seat (131) and a second limit seat (132) are arranged in a sliding manner, a bidirectional screw rod (13) is arranged in a sliding manner, the first limit seat (131) and the other end of the limit sliding rail (13) is in a bidirectional screw rod (133) in a bidirectional threaded connection with the bidirectional screw rod (133), the first limiting seat (131) and the second limiting seat (132) are respectively provided with a stop component (4).

2. The thin-walled workpiece clamping tool according to claim 1, wherein the driving assembly (2) comprises a driven gear (21), the driven gear (21) is coaxially and rotatably arranged on the fixed seat (12), a plurality of circular arc-shaped sliding grooves (211) are formed in the driven gear (21) along the circumferential direction of the driven gear (21), the first sliding rods (122) are in one-to-one correspondence with the sliding grooves (211), one end, far away from the first abutting block (123), of each first sliding rod (122) is provided with a sliding block (212), the sliding block (212) is slidably arranged in the sliding groove (211), a driving gear (22) is rotatably arranged on the fixed seat (12), the driving gear (22) is meshed with the driven gear (21), a cavity is formed in the base (1), a rotating shaft (23) is rotatably arranged in the base (1), one end of each rotating shaft (23) is coaxially connected with the driving gear (22), the other end of each rotating shaft (23) is coaxially provided with a first worm wheel (24), the first worm wheel (1) is rotatably arranged in the base (211), the first worm wheel (25) is rotatably arranged on the other end of each first worm wheel (25) and is meshed with the first worm (25), and a cross groove (26) is formed in the first worm (25).

3. The thin-walled workpiece clamping tool according to claim 1, wherein the stop assembly (4) comprises a limiting seat (41) and a contact plate (42), the limiting seat (41) is in a V shape, the limiting seat (41) is arranged at the top of the first limiting seat (131), a plurality of springs (43) are uniformly arranged on the contact plate (42), and the other ends of the springs (43) are connected with the inner wall of the limiting seat (41).

4. The fixture for clamping the thin-walled workpiece according to claim 2, wherein the auxiliary fixing assembly (3) comprises an auxiliary mounting seat (31) and a plurality of supporting rods (32), the plurality of supporting rods (32) are uniformly arranged along the circumferential direction of the fixed seat (12), a plurality of mounting through holes (311) are uniformly formed in the auxiliary mounting seat (31), the plurality of mounting through holes (311) are in one-to-one correspondence with the plurality of supporting rods (32), the auxiliary mounting seat (31) is slidably arranged on the supporting rods (32), a plurality of auxiliary sliding rails (33) are uniformly arranged on the auxiliary mounting seat (31) along the circumferential direction of the auxiliary mounting seat, an auxiliary sliding rod (34) is slidably arranged in the auxiliary sliding rail (33), an auxiliary abutting block (35) which is in a circular arc shape is arranged at one end of the auxiliary sliding rod (34) far from the auxiliary mounting seat (31), a plurality of auxiliary sliding grooves (361) are uniformly formed in the circumferential direction of the auxiliary mounting seat (31), a plurality of auxiliary sliding grooves (361) which are in one-to-one correspondence with the auxiliary sliding blocks (37), the driven gear (21) is coaxially and fixedly provided with a connecting shaft (38), and the other end of the connecting shaft (38) is coaxially connected with the auxiliary wheel (36).

5. The thin-walled workpiece clamping tool according to claim 4, wherein the base (1) is rotatably provided with a driving screw rod (14), the driving screw rod (14) is in threaded connection with the auxiliary mounting seat (31), the other end of the driving screw rod (14) extends into a cavity of the base (1), a second worm wheel (141) is coaxially arranged on the driving screw rod (14), the base (1) is rotatably provided with a second worm (142), the second worm (142) is meshed with the second worm wheel (141), the other end of the second worm (142) extends out of the base (1), and a driving cross groove (143) is formed in the second worm (142).

6. The thin-walled workpiece clamping tool according to claim 3, wherein a first limiting rod (44) is slidably arranged in the first limiting seat (131), the limiting seat (41) is arranged at one end, far away from the first limiting seat (131), of the first limiting rod (44), a plurality of limiting holes (441) are uniformly formed in the first limiting rod (44) along the length direction of the first limiting rod, a positioning bolt (442) is arranged at the top of the first limiting seat (131), one end of the positioning bolt (442) is in threaded connection with the limiting hole (441), a second limiting rod (45) is slidably arranged in the second limiting seat (132), and the structure of the second limiting rod (45) is consistent with that of the first limiting rod (44).

7. The thin-walled workpiece clamping tool of claim 4, wherein the auxiliary supporting rod (5) is arranged at one end, far away from the fixed seat (12), of the supporting rod (32), the connecting hole (51) is formed at one end, far away from the fixed seat (12), of the supporting rod (32), and one end of the auxiliary supporting rod (5) is in threaded connection with the connecting hole (51).

8. The thin-walled workpiece clamping tool of claim 1, wherein the base (1) is uniformly provided with a plurality of mounting holes (15).