CN223251479U - Clamp structure for machining automobile sheet metal parts - Google Patents

Abstract

The utility model relates to the technical field of automobile sheet metal part machining, in particular to a clamp structure for automobile sheet metal part machining, which comprises a base and a workbench, wherein a rotating mechanism is arranged on the base and connected with the workbench to drive the workbench to rotate, lifting mechanisms are respectively fixed on two sides of the workbench, clamping assemblies are connected between telescopic ends of the two lifting mechanisms, the clamping assemblies are provided with a first clamping plate and a second clamping plate which are oppositely arranged, and a driving mechanism is fixed at the telescopic end of the lifting mechanism and connected with the first clamping plate or/and the second clamping plate to drive the first clamping plate and the second clamping plate to move oppositely or reversely. The clamp structure for machining the automobile sheet metal part can adjust the height and the angle position of the sheet metal part according to machining requirements, and solves the problem that the clamping sites of the existing sheet metal clamping equipment are difficult to adjust.

Description

Clamp structure for machining automobile sheet metal parts

Technical Field

The utility model relates to the technical field of automobile sheet metal part machining, in particular to a clamp structure for automobile sheet metal part machining.

Background

The automobile sheet metal is a processing method for automobile maintenance, and is called cold working, namely direct point, and if the appearance of the automobile body is damaged and deformed, the sheet metal process is needed. In the manufacturing and maintenance process of automobiles, the shape of a plurality of sheet metal structural parts is very complex, so that a clamp is required to be used for processing and customizing the sheet metal parts, but the clamping sites of the traditional clamping equipment are difficult to adjust, the sheet metal parts with different types and sizes cannot be well adapted, and certain inconvenience still exists in actual use.

Disclosure of utility model

The utility model aims to solve the problem that clamping sites of sheet metal clamping equipment in the prior art are difficult to adjust, and provides a clamp structure for machining an automobile sheet metal part.

In order to solve the technical problems, the technical scheme includes that the clamp structure for machining the automobile sheet metal parts comprises a base and a workbench, wherein a rotating mechanism is arranged on the base and connected with the workbench to drive the workbench to rotate, lifting mechanisms are respectively fixed on two sides of the workbench, clamping assemblies are connected between telescopic ends of the two lifting mechanisms, each clamping assembly is provided with a first clamping plate and a second clamping plate which are oppositely arranged, a driving mechanism is fixed at the telescopic end of each lifting mechanism, and the driving mechanism is connected with the first clamping plate or/and the second clamping plate to drive the first clamping plate and the second clamping plate to move oppositely or away from each other.

According to the technical scheme, the clamp structure for processing the automobile sheet metal parts is characterized in that the sheet metal parts are placed between the first clamping plate and the second clamping plate, the driving mechanism is started to drive the first clamping plate or/and the second clamping plate to move oppositely so as to fix the sheet metal parts, fixing and clamping of the sheet metal parts of different types can be achieved due to the fact that the clamping space between the first clamping plate and the second clamping plate is adjustable, the rotating mechanism is started to drive the workbench to rotate, the lifting mechanism and the clamping assembly on the workbench are driven to rotate, and therefore angle adjustment of the sheet metal parts is achieved, and the height of the clamping assembly is driven to be adjusted through the lifting mechanism, so that the height of the sheet metal parts is adjusted. The clamp structure for machining the automobile sheet metal part can adjust the height and the angle position of the sheet metal part according to machining requirements, and solves the problem that the clamping sites of the existing sheet metal clamping equipment are difficult to adjust.

Further, the clamping assembly further comprises a mounting frame and a sliding rod, the mounting frame is mounted on the telescopic ends of the two lifting mechanisms, the first clamping plate is fixedly mounted on one side of the inner wall of the mounting frame, long holes are formed in the mounting frame along the two sides of the movement direction of the driving mechanism, two ends of the sliding rod are respectively located in the long holes and are in sliding connection with the long holes, the second clamping plate is mounted on the sliding rod and located in the mounting frame, and the second clamping plate is connected with the driving mechanism.

Further, two sides of the mounting frame along the movement direction of the driving mechanism are respectively fixed with a U-shaped connecting rod, two ends of the sliding rod are respectively provided with a groove, and the connecting rods are accommodated in the grooves and are in sliding connection with the grooves.

Further, a stabilizing plate is fixed on the outer surface of the connecting rod, and a reset spring positioned on the outer side of the connecting rod is fixed between the sliding rod and the stabilizing plate.

Further, the driving mechanism comprises a supporting rod, one end of the supporting rod is fixed at the telescopic end of the lifting mechanism, the other end of the supporting rod is fixed with a fixing frame, a driving motor is fixed on the fixing frame, and an output shaft of the driving motor is fixed with an eccentric wheel which is abutted to the second clamping plate.

Further, the inside cavity that is of base, the top of base seted up with workstation looks adaptation opening, be fixed with on the inner wall of base and be annular supporting bench, the workstation be located the supporting bench inboard and with supporting bench swing joint.

Further, the rotating mechanism comprises a connecting rod which is rotationally connected with the inner bottom wall of the base and is fixed with the workbench at the top, a worm wheel is fixed on the connecting rod, a worm is meshed with the back surface of the worm wheel, one end of the worm is rotationally connected with the inner wall of the base, and the other end of the worm penetrates through the outer portion of the base and is fixedly provided with a rotating disc.

Further, a locking structure is connected to the rotating disc and comprises an inserting rod inserted on the rotating disc, a whole circle of inserting grooves matched with the inserting rod are formed in the base, a pushing plate is fixed to the inserting rod, bolts are connected to the pushing plate in a threaded mode, and thread grooves matched with the bolts are formed in the rotating disc.

Further, the bottom of connecting rod is fixed with first bearing, the connecting rod is connected with the interior bottom wall of base through first bearing rotation, the worm is connected with the inner wall rotation of base through the second bearing, the surface of worm all swing joint has the supporting seat that is located the base, the bottom of supporting seat is fixed with the interior bottom wall of base.

Further, the opposite sides of the first clamping plate and the second clamping plate are respectively fixed with an extrusion layer, each extrusion layer is a rubber layer, and the opposite sides of the two extrusion layers are respectively fixed with an extrusion block.

Compared with the prior art, the utility model has the beneficial effects that:

The clamp structure for processing the automobile sheet metal parts can fix and clamp the sheet metal parts of different types due to the fact that the clamping space of the first clamping plate and the second clamping plate is adjustable, the starting rotating mechanism can drive the workbench to rotate, the lifting mechanism and the clamping assembly on the workbench are driven to rotate, accordingly angle adjustment of the sheet metal parts is achieved, and the lifting mechanism drives the clamping assembly to adjust in height, and therefore adjustment of the height of the sheet metal parts is achieved. The clamp structure for machining the automobile sheet metal part can adjust the height and the angle position of the sheet metal part according to machining requirements, and solves the problem that the clamping sites of the existing sheet metal clamping equipment are difficult to adjust.

Drawings

FIG. 1 is a schematic view of the internal structure of the clamp structure for machining an automobile sheet metal part;

FIG. 2 is a schematic structural view of a clamp structure for machining an automobile sheet metal part;

FIG. 3 is a schematic top view of a clamping assembly in the clamp structure for automotive sheet metal part machining according to the present utility model;

FIG. 4 is a schematic diagram of a driving mechanism in the structure of the clamp for machining the sheet metal parts of the automobile;

FIG. 5 is an enlarged view of portion A of FIG. 1;

Fig. 6 is a schematic structural view of an eccentric wheel in the fixture structure for machining an automobile sheet metal part.

In the drawing, 1, a base, 2, a workbench, 3, a rotating mechanism, 4, a lifting mechanism, 6, a clamping assembly, 61, a first clamping plate, 62, a second clamping plate, 7, a driving mechanism, 63, a mounting frame, 65, a sliding rod, 66, a long hole, 64, a connecting rod, 67, a groove, 68, a stabilizing plate, 69, a return spring, 71, a supporting rod, 72, a fixing frame, 73, a driving motor, 74, an eccentric wheel, 5, a supporting table, 31, a connecting rod, 32, a worm wheel, 33, a worm, 34, a rotating disc, 35, a locking structure, 351, an inserting rod, 353, a slot, 354, a push plate, 355, a bolt, 356, a thread groove, 36, a supporting seat, 8, an extruding layer, 9, an extruding block, 75, a bearing rod, 76, a rotating rod, 77 and a mounting hole.

Detailed Description

The utility model is further described below in connection with the following detailed description. In which the drawings are for illustrative purposes only and are not intended to be construed as limiting the present patent, and in which certain elements of the drawings may be omitted, enlarged or reduced in order to better illustrate embodiments of the present utility model, and not to represent actual product dimensions, it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., which are based on the azimuth or positional relationship shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or elements referred to must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that the specific meanings of the terms described above should be understood by those skilled in the art according to circumstances.

Example 1

As shown in fig. 1 to 2, a clamp structure for processing an automobile sheet metal part comprises a base 1 and a workbench 2, wherein a rotating mechanism 3 is installed on the base 1, the rotating mechanism 3 is connected with the workbench 2 to drive the workbench 2 to rotate, lifting mechanisms 4 are respectively fixed on two sides of the workbench 2, clamping assemblies 6 are connected between telescopic ends of the two lifting mechanisms 4, the clamping assemblies 6 are provided with a first clamping plate 61 and a second clamping plate 62 which are oppositely arranged, a driving mechanism 7 is fixed at the telescopic end of the lifting mechanism 4, and the driving mechanism 7 is connected with the first clamping plate 61 or/and the second clamping plate 62 to drive the first clamping plate 61 and the second clamping plate 62 to move oppositely or reversely.

In the embodiment, the clamp structure for processing the sheet metal parts of the automobile is characterized in that the sheet metal parts are placed between the first clamping plate 61 and the second clamping plate 62, the driving mechanism 7 is started to drive the first clamping plate 61 or/and the second clamping plate 62 to move in opposite directions so as to fix the sheet metal parts, the clamping space of the first clamping plate 61 and the second clamping plate 62 can be adjusted through the driving mechanism 7, so that the fixing and clamping of the sheet metal parts of different types can be realized, the workbench 2 can be driven to rotate by the starting rotation mechanism 3, the lifting mechanism 4 and the clamping assembly 6 on the workbench 2 are driven to rotate, the angle adjustment of the sheet metal parts is realized, and the height adjustment of the clamping assembly 6 is driven by the lifting mechanism 4, so that the height adjustment of the sheet metal parts is realized.

It should be noted that, the lifting mechanism 4 may be an electric telescopic device, a pneumatic or hydraulic telescopic device, and other structures capable of realizing lifting motion are also within the scope of the present utility model.

As shown in fig. 1 to 3, the clamping assembly 6 further includes a mounting frame 63 and a sliding rod 65, the mounting frame 63 is mounted on the telescopic ends of the two lifting mechanisms 4, the first clamping plate 61 is fixedly mounted on one side of the inner wall of the mounting frame 63, long holes 66 are formed in two sides of the mounting frame 63 along the movement direction of the driving mechanism 7, two ends of the sliding rod 65 are respectively located in the long holes 66 and are slidably connected with the long holes 66, the second clamping plate 62 is mounted on the sliding rod 65 and located in the mounting frame 63, and the second clamping plate 62 is connected with the driving mechanism 7. In the present embodiment, the movement direction of the driving mechanism 7 is identical to the length direction of the mounting frame 63, the length direction of the long hole 66 is identical to the movement direction of the driving mechanism 7, the long hole 66 is provided in the length direction of the mounting frame 63, both ends of the sliding rod 65 are mounted in the long hole 66, and when the driving mechanism 7 pushes the second clamping plate 62 to move, the long hole 66 can limit the movement direction of the sliding rod 65, so that the sliding rod 65 can move according to the opening direction of the long hole 66.

As shown in fig. 2 and 3, both sides of the mounting frame 63 along the movement direction of the driving mechanism 7 are fixed with a U-shaped engagement rod 64, both ends of the sliding rod 65 are respectively provided with a groove 67, and the engagement rod 64 is accommodated in the groove 67 and is slidably connected with the groove 67. In the present embodiment, since the two ends of the slide rod 65 extend out of the long holes 66 of the mounting frame 63, and the two ends of the slide rod 65 are provided with the grooves 67, since the connecting rod 64 is located in the grooves 67, when the driving mechanism 7 drives the second clamping plate 62 to move toward the first clamping plate 61, the problem of rolling of the slide rod 65 can be prevented, and the stability of the movement of the slide rod 65 is further ensured.

As shown in fig. 3, a stabilizing plate 68 is fixed to the outer surface of the joint lever 64, and a return spring 69 is fixed between the slide lever 65 and the stabilizing plate 68 outside the joint lever 64. In this embodiment, one end of the return spring 69 is abutted against the sliding rod 65, the other end of the return spring 69 is abutted against the stabilizing plate 68, when the driving mechanism 7 drives the second clamping plate 62 to move towards the first clamping plate 61, the sliding rod 65 can press the return spring 69 to enable the return spring 69 to generate compression deformation, and when the driving mechanism 7 does not apply force to the second clamping plate 62, the compressed return spring 69 is in recovery deformation and can reversely push the second clamping plate 62 to move towards the direction away from the first clamping plate 61, so that the second clamping plate 62 is automatically reset.

As shown in fig. 1, 2 and 4, the driving mechanism 7 includes a support rod 71, one end of the support rod 71 is fixed at the telescopic end of the lifting mechanism 4, the other end of the support rod 71 is fixed with a fixing frame 72, a driving motor 73 is fixed on the fixing frame 72, and an eccentric wheel 74 abutted against the second clamping plate 62 is fixed on an output shaft of the driving motor 73. In this embodiment, the driving motor 73 rotates, the driving motor 73 drives the eccentric wheel 74 to rotate, and the distance D between the position where the eccentric wheel 74 abuts against the second clamping plate 62 and the rotation center of the eccentric wheel 74 is larger and larger in the rotating process of the eccentric wheel 74, so that under the action of the eccentric wheel 74, the eccentric wheel 74 can push the second clamping plate 62 to move towards the first clamping plate 61, and the sheet metal part can be clamped by virtue of the action of the second clamping plate 62 and the second clamping plate 62. When the sheet metal part is machined, the clamping force on the sheet metal part needs to be relieved, the eccentric wheel 74 rotates so that the distance between the position where the eccentric wheel 74 is abutted against the second clamping plate 62 and the rotation center of the eccentric wheel 74 is smaller than the distance D between the position where the eccentric wheel 74 is abutted against the second clamping plate 62 and the rotation center of the eccentric wheel 74 when the sheet metal part is clamped, and therefore the sheet metal part can be removed from the second clamping plate 62 and the first clamping plate 61. In the process of releasing the clamping acting force of the second clamping plate 62 and the first clamping plate 61 on the sheet metal part by the eccentric wheel 74, the second clamping plate 62 can be pushed to move towards the direction deviating from the first clamping plate 61 by the reverse acting force of the return spring 69, so that the clamped sheet metal part can be conveniently removed.

As shown in fig. 4 and 5, one end of the supporting rod 71 is connected to the telescopic end of the lifting mechanism 4, the other end of the supporting rod 71 is connected to one end of the receiving rod 75, the other end of the receiving rod 75 is provided with the fixing frame 72, the bottom of the fixing frame 72 is provided with the driving motor 73, the output shaft of the driving motor 73 is connected to one end of the rotating rod 76, the eccentric wheel 74 is provided with a mounting hole 77, and the other end of the rotating rod 76 is fixedly mounted in the mounting hole 77.

As shown in fig. 1, the inside of the base 1 is a cavity, an opening adapted to the workbench 2 is provided at the top of the base 1, a supporting table 5 in a ring shape is fixed on the inner wall of the base 1, and the workbench 2 is located inside the supporting table 5 and movably connected with the supporting table 5. Because the work table 2 bears the total weight of the lifting mechanism 4, the clamping assembly 6 and the sheet metal part, the support table 5 can give the work table 2 supporting force through the arrangement of the support table 5, so that the work table 2 is enabled to rotate more stably.

Example 2

Similar to embodiment 1, except that the rotation mechanism 3 includes a connection rod 31 rotatably connected to the inner bottom wall of the base 1 and having the top fixed to the table 2 as shown in fig. 1, a worm wheel 32 is fixed to the connection rod 31, a worm 33 is engaged with the back surface of the worm wheel 32, one end of the worm 33 is rotatably connected to the inner wall of the base 1, and the other end of the worm 33 penetrates the outside of the base 1 and is fixed with a rotation disk 34. In this embodiment, through the rotation of the operation rotating disc 34, the worm 33 is driven to rotate by the rotating disc 34, so that the worm wheel 32 and the connecting rod 31 turn around, thereby realizing the rotation of the connecting rod 31 and the fixed workbench 2, realizing the rotation of the clamping assembly 6 on the workbench 2, and further promoting the angle rotation of the sheet metal part in the clamping assembly 6, so that the subsequent processing is facilitated.

As shown in fig. 5, the rotating disc 34 is connected with a locking structure 35, the locking structure 35 comprises a plug rod 351 inserted on the rotating disc 34, a whole circle of slot 353 matched with the plug rod 351 is formed in the base 1, a push plate 354 is fixed on the plug rod 351, a bolt 355 is connected to the push plate 354 in a threaded manner, and a thread groove 356 matched with the bolt 355 is formed in the rotating disc 34. In this embodiment, when the rotating disc 34 drives the worm 33 to turn, the worm wheel 32 and the connecting rod 31 at the axle center are driven to rotate, the connecting rod 31 drives the workbench 2 at the top to turn, thereby adjusting the angle position of the sheet metal part, after the angle adjustment is finished, the inserting rod 351 is pushed to be inserted into the whole circle of slots 353, the friction force of the inserting rod 351 inserted into the whole circle of slots 353 is large, the rotating disc 34 cannot be pushed to rotate under normal force, then the bolt 355 is rotated, the bolt 355 is in threaded connection with the threaded groove 356 on the rotating disc 34, and the connecting between the inserting rod 351 and the rotating disc 34 is driven to be more compact, thereby improving the locking stability of the rotating disc 34.

As shown in fig. 1, a first bearing is fixed at the bottom of the connecting rod 31, the connecting rod 31 is rotatably connected with the inner bottom wall of the base 1 through the first bearing, the worm 33 is rotatably connected with the inner wall of the base 1 through the second bearing, the outer surfaces of the worm 33 are movably connected with a supporting seat 36 positioned in the base 1, and the bottom of the supporting seat 36 is fixed with the inner bottom wall of the base 1. In this embodiment, the left and right sides of the outer surface of the worm 33 are movably connected with a supporting seat 36, the bottom of the supporting seat 36 is fixed with the inner bottom wall of the base 1, and the supporting seat 36 gives the force supported by the worm 33, so that the worm 33 is enabled to rotate more stably.

Example 3

Similar to embodiment 1, the difference is that as shown in fig. 1, the opposite sides of the first clamping plate 61 and the second clamping plate 62 are each fixed with a pressing layer 8, the pressing layer 8 is a rubber layer, and the opposite sides of the two pressing layers 8 are each fixed with a pressing block 9. In this implementation, two extrusion layers 8 are opposite one side all is fixed with the extrusion piece 9 that is a plurality of and be the equidistance and distribute, through extrusion piece 9 and extrusion layer 8's setting, can increase the area of contact of first splint 61 and second splint 62 and sheet metal component surface, when improving centre gripping stability, avoid the sheet metal component surface wearing and tearing that hard contact caused.

The working principle of the embodiment is as follows:

(1) The sheet metal part is arranged in the mounting frame 63 and is positioned between the first clamping plate 61 and the second clamping plate 62, the driving motor 73 is started to drive the eccentric wheel 74 to rotate, one side of the eccentric wheel 74, which is far away from the axis, is gradually close to the second clamping plate 62, the second clamping plate 62 is pushed to displace towards the direction close to the first clamping plate 61, the sheet metal part is clamped firmly by the straight second clamping plate 62 and the first clamping plate 61, and the clamping space between the first clamping plate 61 and the second clamping plate 62 is adjusted, so that the sheet metal part with different types and sizes can be clamped and fixed, the adjustment of clamping sites is realized, the trouble and the labor are saved, and the operation is convenient.

(2) The rotating disc 34 drives the worm 33 to rotate, the worm wheel 32 and the connecting rod 31 at the axle center of the worm wheel are realized to rotate under the meshing force, the connecting rod 31 drives the workbench 2 to turn around, so that turnover angle adjustment of sheet metal parts is realized, the lifting mechanism 4 is started, the height of the mounting frame 63 is adjusted, the height of the sheet metal parts clamped in the mounting frame 63 is adjusted, the sheet metal parts are convenient to process, the whole structure is simple, the height and the angle position of the sheet metal parts can be adjusted according to the processing requirement, and the sheet metal part turnover mechanism is convenient to use and high in practicability.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A clamp structure for machining an automobile sheet metal part is characterized by comprising a base (1) and a workbench (2), wherein a rotating mechanism (3) is arranged on the base (1), the rotating mechanism (3) is connected with the workbench (2) to drive the workbench (2) to rotate, lifting mechanisms (4) are respectively fixed on two sides of the workbench (2), clamping assemblies (6) are connected between telescopic ends of the two lifting mechanisms (4), the clamping assemblies (6) are provided with a first clamping plate (61) and a second clamping plate (62) which are oppositely arranged, a driving mechanism (7) is fixed at the telescopic ends of the lifting mechanisms (4), and the driving mechanism (7) is connected with the first clamping plate (61) or/and the second clamping plate (62) to drive the first clamping plate (61) and the second clamping plate (62) to move oppositely or reversely.

2. The clamp structure for machining the automobile sheet metal parts according to claim 1, wherein the clamping assembly (6) further comprises a mounting frame (63) and a sliding rod (65), the mounting frame (63) is mounted on the telescopic ends of the two lifting mechanisms (4), the first clamping plate (61) is fixedly mounted on one side of the inner wall of the mounting frame (63), long holes (66) are formed in the two sides of the mounting frame (63) along the moving direction of the driving mechanism (7), two ends of the sliding rod (65) are respectively located in the long holes (66) and are in sliding connection with the long holes (66), the second clamping plate (62) is mounted on the sliding rod (65) and located in the mounting frame (63), and the second clamping plate (62) is connected with the driving mechanism (7).

3. The fixture structure for machining automobile sheet metal parts according to claim 2, wherein U-shaped connecting rods (64) are fixed on two sides of the mounting frame (63) along the movement direction of the driving mechanism (7), grooves (67) are formed in two ends of the sliding rod (65) respectively, and the connecting rods (64) are accommodated in the grooves (67) and are connected with the grooves in a sliding mode.

4. The fixture structure for machining automobile sheet metal parts according to claim 3, wherein a stabilizing plate (68) is fixed to the outer surface of the connecting rod (64), and a return spring (69) located on the outer side of the connecting rod (64) is fixed between the sliding rod (65) and the stabilizing plate (68).

5. The fixture structure for machining automobile sheet metal parts according to claim 4, wherein the driving mechanism (7) comprises a supporting rod (71), one end of the supporting rod (71) is fixed at the telescopic end of the lifting mechanism (4), a fixing frame (72) is fixed at the other end of the supporting rod (71), a driving motor (73) is fixed on the fixing frame (72), and an eccentric wheel (74) abutted against the second clamping plate (62) is fixed on an output shaft of the driving motor (73).

6. The fixture structure for machining the automobile sheet metal parts, as set forth in claim 1, is characterized in that the inside of the base (1) is a cavity, an opening matched with the workbench (2) is formed in the top of the base (1), a supporting table (5) in a ring shape is fixed on the inner wall of the base (1), and the workbench (2) is located inside the supporting table (5) and is movably connected with the supporting table (5).

7. The fixture structure for machining automobile sheet metal parts according to claim 1, wherein the rotating mechanism (3) comprises a connecting rod (31) rotatably connected to the inner bottom wall of the base (1) and fixed to the workbench (2) at the top, a worm wheel (32) is fixed to the connecting rod (31), a worm (33) is meshed to the back of the worm wheel (32), one end of the worm (33) is rotatably connected to the inner wall of the base (1), and the other end of the worm (33) penetrates through the outer portion of the base (1) and is fixedly provided with a rotating disc (34).

8. The fixture structure for machining automobile sheet metal parts according to claim 7, wherein the rotating disc (34) is connected with a locking structure (35), the locking structure (35) comprises a plug rod (351) inserted on the rotating disc (34), the base (1) is provided with a whole circle of slots (353) matched with the plug rod (351), the plug rod (351) is fixedly provided with a push plate (354), the push plate (354) is connected with a bolt (355) in a threaded manner, and the rotating disc (34) is provided with a thread groove (356) matched with the bolt (355).

9. The fixture structure for machining the automobile sheet metal parts according to claim 7, wherein a first bearing is fixed at the bottom of the connecting rod (31), the connecting rod (31) is rotatably connected with the inner bottom wall of the base (1) through the first bearing, the worm (33) is rotatably connected with the inner wall of the base (1) through a second bearing, supporting seats (36) located in the base (1) are movably connected to the outer surfaces of the worm (33), and the bottom of the supporting seats (36) is fixed with the inner bottom wall of the base (1).

10. The fixture structure for machining automobile sheet metal parts according to claim 1, wherein the opposite sides of the first clamping plate (61) and the second clamping plate (62) are respectively fixed with an extrusion layer (8), the extrusion layers (8) are rubber layers, and the opposite sides of the two extrusion layers (8) are respectively fixed with an extrusion block (9).