CN220406822U - Punching assembly - Google Patents

Abstract

The utility model discloses a punching assembly, which comprises: a slide rail; a robot movably mounted to the slide rail, the robot being configured with a mounting plate; the grabbing mechanism is detachably and rotatably arranged on the mounting plate and is suitable for grabbing a car body top cover; the grabbing mechanism grabs the car body top cover and transfers the car body top cover to the locating tool, and the locating tool is used for bearing and fixing the car body top cover; and the punching gun is detachably and rotatably arranged on the mounting plate and replaces the grabbing mechanism. The punching processing assembly provided by the embodiment of the utility model has the advantages of reducing noise pollution, reducing development period and cost, meeting flexible production, improving punching precision and the like.

Description

Punching assembly

Technical Field

The utility model relates to the technical field of vehicles, in particular to a punching assembly.

Background

In the heavy truck industry, the conventional mode of punching the car body top cover is that a punching workshop adopts a die for punching, and the die for punching in the punching workshop has high precision requirement on the punching die, complex manufacture, long period and high manufacturing cost, so that small-batch and flexible production is limited. Punching in a punching workshop can only punch small batches of single vehicle types, and is difficult to adapt to the diversification of the vehicle types. For diversified vehicle types, namely different configuration vehicle types, the front top cover plate, the left side top cover plate, the right side top cover plate and the middle top cover plate are required to be punched in variable quantity, variable positions and variable angles, and the punching flexibility of the punching workshop die is poor. And the noise generated by punching of the die in the punching workshop is high, if the precision requirement of the part is too high, the punching production is difficult to meet the requirement.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. It is therefore an object of the present utility model to provide a punching assembly that has the advantages of reduced noise pollution, reduced development cycle and cost, flexible production, and improved punching accuracy.

In order to achieve the above object, according to an embodiment of the present utility model, a punching assembly is provided, including a slide rail; a robot movably mounted to the slide rail, the robot being configured with a mounting plate; the grabbing mechanism is detachably and rotatably arranged on the mounting plate and is suitable for grabbing a car body top cover; the grabbing mechanism grabs the car body top cover and transfers the car body top cover to the locating tool, and the locating tool is used for bearing and fixing the car body top cover; and the punching gun is suitable for replacing the grabbing mechanism and is detachably and rotatably mounted on the mounting plate.

The punching processing assembly provided by the embodiment of the utility model has the advantages of reducing noise pollution, reducing development period and cost, meeting flexible production, improving punching precision and the like.

According to an embodiment of the present utility model, the robot includes: the driving base is movably arranged on the sliding rail; a first rocker arm rotatably connected to the drive base; the second rocker arm is rotatably connected to one end, away from the driving base, of the first rocker arm; a third rocker arm; the third rocker arm is rotatably connected to an end of the second rocker arm remote from the first rocker arm, and the mounting plate is formed for the third rocker arm.

According to an embodiment of the present utility model, the second rocker arm includes: the first rotating arm and the second rotating arm are the same in axis, and the second rotating arm is rotatably connected to the first rotating arm along the axis.

According to the punching processing assembly, the second rocker arm is provided with a first support arm and a second support arm which are arranged at intervals, and the third rocker arm is rotatably arranged between the first support arm and the second support arm.

According to an embodiment of the present utility model, the grasping mechanism includes: a frame detachably and rotatably mounted to the mounting plate; the lower supporting claw is connected to the bottom of the frame, rotates between an avoidance position and a supporting position, and is suitable for being supported on the bottom of the vehicle body top cover when being positioned at the supporting position; the upper pressing plate is connected to the frame and located above the lower supporting claws, and is suitable for being pressed on the top of the vehicle body top cover.

According to an embodiment of the present utility model, the frame includes: the outer contour of the side grabbing frame is rectangular, the center of the side grabbing frame is detachably and rotatably connected to the mounting plate, and lower supporting claws are arranged on two short sides of the side grabbing frame; and the front grabbing frame is connected with one long side of the side grabbing frame.

According to an embodiment of the utility model, the positioning tool comprises: the tool mounting plate horizontally extends; the support columns are arranged on the tool mounting plate and extend vertically upwards; the positioning clamping jaws are correspondingly arranged on the supporting upright posts one by one and are suitable for clamping and fixing the vehicle body top cover.

According to an embodiment of the present utility model, the positioning jaw includes: the horizontal clamping jaw and the vertical clamping jaw are respectively installed on the corresponding supporting upright posts, the horizontal clamping jaw is clamped on the horizontal edge of the automobile body top cover, and the vertical clamping jaw is clamped on the vertical edge of the automobile body top cover.

According to the punching processing assembly provided by the embodiment of the utility model, one side of the vertical clamping jaw is provided with the limiting block, the limiting block is provided with the limiting groove with the upward opening, and the limiting groove is suitable for supporting the vertical edge of the vehicle body top cover.

According to the punching assembly provided by the embodiment of the utility model, the number of the sliding rails, the number of the robots and the number of the punching guns are all multiple, the sliding rails are respectively positioned on the two opposite sides of the positioning tool and extend in parallel, each sliding rail is respectively provided with the robot, and the robots on the two sides of the positioning tool are suitable for installing the punching guns to jointly punch the top cover of the vehicle body of the positioning tool.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of a punch processing assembly according to an embodiment of the present utility model;

FIG. 2 is another schematic structural view of a punch tooling assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a robotic mounted gripping mechanism of a punch processing assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a gripping structure of a punch processing assembly according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a locating fixture of a punch processing assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a punch processing partial structure of a punch processing assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic view of the structure of the horizontal jaw of the punch processing assembly according to an embodiment of the present utility model;

fig. 8 is a schematic view of the structure of the vertical jaw of the punch machining assembly according to an embodiment of the present utility model.

Reference numerals:

punching assembly 1, slide rail 100, robot 200, grabbing mechanism 300, positioning tool 400, punching gun 500, driving base 210, first rocker arm 220, second rocker arm 230, third rocker arm 240, first rotating arm 231,

A second rotating arm 232, a frame 310, a lower supporting claw 320, an upper pressing plate 330, a side grabbing frame 311,

Front gripping frame 312, mounting plate 410, support post 420, plurality of positioning jaws 430, horizontal jaw 431, vertical jaw 432, roof 10, first arm 20, second arm 30, stop block 40, mounting plate 201.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the utility model, "a plurality" means two or more, and "a number" means one or more.

A punching process assembly 1 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

As shown, the punching assembly 1 according to the embodiment of the present utility model includes a slide rail 100, a robot 200, a gripping mechanism 300, a positioning tool 400, and a punching gun 500.

A slide rail 100. The robot 200 is movably mounted to the slide rail 100, and the robot 200 is configured with a mounting plate 201. The gripping mechanism 300 is detachably and rotatably mounted to the mounting plate 201, and the gripping mechanism 300 is adapted to grip the vehicle body roof 10. The grabbing mechanism 300 grabs the car body top cover 10 and transfers the car body top cover 10 to the locating tool 400, and the locating tool 400 is used for bearing and fixing the car body top cover 10. The punch gun 500 is adapted to replace the grasping mechanism 300 and is removably and rotatably mounted to the mounting plate 201.

First, the operation of the punching assembly 1 will be described, when the operation is started, the robot 200 is mounted on the slide rail 100 and moves along the slide rail 100 from the initial position, the robot 200 moves along the slide rail 100 to the working position for gripping the body top cover 10 according to the preset path, the body top cover 10 is gripped by the gripping mechanism 300 on the mounting plate 201, then the robot 200 moves the body top cover 10 to the positioning fixture 400 to ensure stability, then the robot 200 removes the gripping mechanism 300 through the mounting plate 201 and replaces the gripping mechanism 300 with the punching gun 500, the robot 200 performs the punching operation on the body top cover 10 according to the preset program with the punching gun 500, after the punching operation is completed, the robot 200 places the body top cover 10 on the split fixture with the gripping mechanism 300 to complete the punching operation, removes the punching gun 500 to reinstall the gripping mechanism 300, and prepares for the next body top cover 10 to be processed, and the punching operation is completed circularly.

For example, robot 200 is embodied as a seven-axis robot, i.e., having seven degrees of freedom of movement. The positioning fixture 400 is located at one side of the sliding rail 100, further, a plurality of positioning fixtures 400 may be arranged at one side of the sliding rail 100, and the plurality of positioning fixtures 400 are arranged along the length direction of the sliding rail 100, so that a plurality of vehicle body top covers 10 may be respectively installed on different positioning fixtures 400.

According to the punching processing assembly 1 of the embodiment of the utility model, the robot 200 can be respectively provided with the grabbing mechanism 300 and the punching gun 500 through the mounting plate 201, in the punching processing process, the robot 200 can realize different operations of grabbing and punching the car body top cover 10 only by replacing the grabbing mechanism 300 and the punching gun 500 through the mounting plate 201, the car body top cover 10 can be processed more intelligently, and the punching operation can be performed in a welding workshop and the like without punching in a punching workshop only by simply replacing the punching gun 500. Compared with the traditional punching mode of the punching die, the mode of using the punching gun 500 can reduce development cost, reduce development investment of new vehicle types, reduce noise pollution of the punching die and reduce influence on environment, and meanwhile, the mode of combining the robot 200, the positioning tool 400, the punching gun 500 and the like is relatively faster in punching processing and debugging, so that development period is reduced, manual operation is reduced, and labor cost is reduced. The gripping mechanism 300 and the punching gun 500 can be detachably and rotatably mounted on the mounting plate 201, and different processing requirements can be realized, thereby satisfying flexible production. The robot 400 has higher accuracy and stability in the working process, and can accurately position and punch holes, and the positioning tool 400 is used for bearing and supporting the automobile body top cover 10, so that the stability of the automobile body top cover 10 in the processing process is ensured, and the accuracy and consistency of punching holes can be improved.

Therefore, the punching processing assembly 1 provided by the embodiment of the utility model has the advantages of reducing noise pollution, reducing development period and cost, meeting flexible production, improving punching precision and the like.

In some embodiments of the present utility model, the robot 200 includes a drive base 210, a first swing arm 220, a second swing arm 230, and a third swing arm 240. The driving base 210 is movably mounted to the slide rail 100. The first rocker arm 220 is rotatably coupled to the drive base 210. The second rocker arm 230 is rotatably connected to an end of the first rocker arm 220 remote from the drive base 210. The third rocker arm 240 is rotatably connected to an end of the second rocker arm 230 remote from the first rocker arm 220, and the mounting plate 201 is formed for the third rocker arm 240.

The robot 200 is mounted on the slide rail 100 through a driving base 210, and the driving base 210 provides driving force to move the robot 200 on the slide rail 100. One end of the first rocker arm 220 is connected with the driving base 210, the other end is connected with the second rocker arm 230, the second rocker arm 230 can rotate at the joint to adjust the direction angle, the third rocker arm 250 is connected to one side of the second rocker arm 230 far away from the first rocker arm 220, and the third rocker arm 240 can adsorb mechanisms such as the car body top cover 10, the grabbing mechanism 300 and the like through the mounting plate 201 to complete work. Thus, by the first swing arm 220, the second swing arm 230, and the third swing arm 230 rotating with respect to each other, the angle of the gripping mechanism 300 or the punch 500 on the mounting plate 201 can be controlled more flexibly, so that the roof 10 can be conveyed or punched from different directions and angles.

Specifically, the driving base 210 is used for driving the robot 200 to move along the sliding rail 100, driving force is provided by the driving base 210, and the driving base 210 has a rotation function, and the rotation center of the driving base extends vertically, so that the robot 200 can rotate at any angle in the horizontal direction. The first swing arm 220 connects the driving base 210 and the second swing arm 230, and the first swing arm 220 can rotate, thereby enabling the robot 200 to perform punching work at different spatial positions. The second swing arm 230 is used to carry punch arms 500 and other tools to provide stable support and positioning during punching. The third rocker arm 240 is used for connecting and operating the punching gun 500, and precise control is realized through the joint structure, so that the punching gun 500 can perform precise punching operation according to a preset path, and the third rocker arm 240 can also rotate to adapt to different punching requirements.

In some embodiments of the present utility model, the second swing arm 230 includes a first swing arm 231 and a second swing arm 232, the axes of the first swing arm 231 and the second swing arm 232 are identical, and the second swing arm 232 is rotatably connected to the first swing arm 231 along the axis. The axes of the first rotating arm 231 and the second rotating arm 232 are the same, so that the connection of the first rotating arm 231 and the second rotating arm 232 is more stable, the first rotating arm and the second rotating arm can be better mutually supported and balanced, and the stability of the whole system is improved. The second rotating arm 232 can rotate along with the axis, so that the flexibility of the second rocker arm 230 is improved, a proper and correct punching angle and position can be selected, the punching efficiency and accuracy are improved, a larger working range can be covered through reasonable rotation, and more comprehensive punching operation is realized.

In some embodiments of the present utility model, the second rocker arm 230 is configured with first and second arms 20, 30 disposed in spaced apart relation, and the third rocker arm 240 is rotatably mounted between the first and second arms 20, 30. The arrangement of the first arm 20 and the second arm 30 can increase the stability of the second swing arm 230, and the arrangement of the space can avoid the mutual interference and collision between the first arm 20 and the second arm 30, thereby ensuring the stability of the structure of the second swing arm 230. The rotation of the third swing arm 240 between the first and second arms 20, 30 increases the flexibility and maneuverability of the overall system, as the third swing arm 240 may rotate, the robot 200 may operate at different angles and ranges, improving the flexibility and efficiency of the operation of the robot 200.

In some embodiments of the present utility model, the grasping mechanism 300 includes a frame 310, a lower support claw 320, and an upper platen 330. The frame 310 is detachably and rotatably mounted to the mounting plate 201. The lower support claw 320 is connected to the bottom of the frame 310, and the lower support claw 320 is rotatable between a retracted position and a support position, the lower support claw 320 being adapted to be supported on the bottom of the roof 10 when in the support position. An upper pressure plate 330 is connected to the frame 310 and located above the lower support claws 320, the upper pressure plate 330 being adapted to be pressed against the top of the vehicle body roof 10.

The gripping mechanism 300 can perform positioning gripping, carrying, and the like of the roof 10. The frame 310 serves as a supporting structure of the grasping mechanism 300, providing mechanical strength and stability, ensuring normal operation with the robot 200 through connection with the mounting plate 201. The lower support claws 320 are used to grasp the roof 10 during operation, and the avoidance position means that when the lower support claws 320 are not being processed, the lower support claws 320 need to avoid so as not to interfere with the lifting or dropping operation of the gripping mechanism 300, and at this time, the lower support claws 320 avoid the roof 10 to allow the gripping mechanism 300 to reach or lift off the surface of the roof 10 or to reach to avoid contact with the roof 10. After the avoidance is completed, the punching operation is performed, the lower support claw 320 is located at the support position, the lower support claw 320 is supported at the bottom of the body top cover 10, and the body top cover 10 is supported and transported to reach the position of the positioning tool 400. In the punching process, the upper pressing plate 330 can tightly press the body top cover 10 by applying downward pressure, so as to ensure that the body top cover 10 cannot deform and displace, and the body top cover 10 can maintain a stable position by providing a stable supporting force for the body top cover 10 and is not affected by vibration during punching.

In some embodiments of the present utility model, the frame 310 includes a side gripping frame 311, a front gripping frame 312. The outer contour of the side grabbing frame 311 is configured as a rectangle, the center of the side grabbing frame 311 is detachably and rotatably connected to the mounting plate 201, and the lower supporting claws 320 are mounted on both short sides of the side grabbing frame 311. The front grip frame 312 is connected to one long side of the side grip frame 311.

The holding structure of the side gripping frame 311 can provide stable support, so that the gripping mechanism 300 can accurately grip and position, the two short sides of the side gripping frame 311 are both provided with the lower supporting claws 320, supporting force is provided on the two sides, the bottom of the side surface of the vehicle body top cover 10 can be supported, and the stability in the process of conveying the vehicle body top cover 10 is ensured. The front gripping frame 312 is located on the long side of the side gripping frame 311, and can fix the roof 10 by gripping with the roof 10, ensuring the stability of transporting the roof 10 in the front-rear direction. The structural design of the frame 310 is generally matched to the size of the finished roof 10 to ensure reliable gripping force and tightness.

In some embodiments of the present utility model, positioning fixture 400 includes a mounting plate 410, a support post 420, and a plurality of positioning jaws 430. Mounting plate 410 extends horizontally. Support posts 420 are mounted to tooling mounting plate 410 and extend vertically upward. The positioning clamping jaws 430 are mounted on the support upright 420 in a one-to-one correspondence manner and are suitable for clamping and fixing the vehicle body top cover 10. The mounting plate 410 is a horizontally extending planar surface for mounting the support kiosks 420 and supporting and positioning the roof 10 so that the roof 10 may be processed at this platform. The support column 420 is a column structure mounted on the mounting plate 410 and extending vertically upward, and serves to support and position the vehicle body roof 10. The plurality of positioning clamping jaws 430 are used for clamping and fixing the vehicle body top cover 10, and stability and accurate positioning of the vehicle body top cover 10 can be ensured by adjusting clamping force. Specifically, the positioning tool 400 can position and fix the vehicle body top cover 10, and can ensure the position and stability of the vehicle body top cover 10 in the processing process by adjusting the plurality of positioning clamping jaws 430, and can improve the processing precision and efficiency by processing at the fixed position.

In some embodiments of the present utility model, the positioning jaw 430 includes a horizontal jaw 431 and a vertical jaw 432, the horizontal jaw 431 and the vertical jaw 432 are respectively mounted to the corresponding support post 420, the horizontal jaw 431 is clamped to the horizontal edge of the roof 10, and the vertical jaw 432 is clamped to the vertical edge of the roof 10.

For example, the horizontal clamping jaw 431 is mounted on the corresponding supporting upright 420, the vehicle body top cover 10 is fixed at the fixed position of the positioning tool 400, the horizontal clamping jaw 431 clamps the horizontal edge of the vehicle body top cover 10 by adjusting the clamping force, the horizontal clamping jaw 431 provides stable horizontal support for the vehicle body top cover 10, the vehicle body top cover 10 is prevented from moving or tilting in the processing process, and the vertical clamping jaw 432 works in the same manner as the horizontal clamping jaw 431. Specifically, the horizontal clamping jaw 431 and the vertical clamping jaw 432 fix the vehicle body top cover 10 on the positioning tool 10 by clamping the edge of the vehicle body top cover 10, so that accurate positioning in the machining process is ensured, stable positioning points are provided, and machining precision and machining quality are ensured. Meanwhile, in the punching process, the automobile body top cover 10 can be subjected to relatively large pressure and vibration, and through the clamping action of the vertical clamping jaw 432 and the horizontal clamping jaw 431, the automobile body top cover can be effectively prevented from sliding or tilting in the horizontal direction and the vertical direction, so that the stability in the working process is ensured, and the processing efficiency is improved.

In some embodiments of the present utility model, one side of the vertical jaw 432 is configured with a stop block 40, the stop block 40 is configured with an upwardly opening stop slot adapted to support the vertical edge of the vehicle body roof 10. The stopper 40 provides an additional supporting area through the vertical edge contact with the body top cover 10, plays a role in pre-positioning, improves the stability of clamping, can prevent unstable body, ensures the accuracy of the clamping position of the positioning clamping jaw 430, and maintains the stability of work. The limiting groove is an opening in the limiting block 40, so that the vertical clamping jaw 432 can be accurately inserted into the limiting groove and combined with the limiting block 40, the shape and the size of the limiting groove are matched with those of the vertical edge of the vehicle body top cover 10, and accurate positioning and alignment are achieved.

In some embodiments of the present utility model, the plurality of slide rails 100, the robot 200 and the punching gun 500 are all plural, the plurality of slide rails 100 are respectively located at two opposite sides of the positioning fixture 400 and extend in parallel, each slide rail 100 is respectively provided with the robot 200, and the robots 200 at two sides of the positioning fixture 400 are suitable for installing the punching gun 500 to punch the roof 10 of the vehicle body of the positioning fixture 400 together. Through installing a plurality of slide rails 100 and robot 200 in the both sides of location frock 400, can realize a plurality of automobile body top caps 10 simultaneous processing, every robot 200 can both operate independently, through the coordinated work of each structure, a plurality of rifle 500 that punches a hole to the automobile body top cap 10 of location frock 400 simultaneously to production efficiency has been improved. The arrangement of the plurality of slide rails 100 means that a plurality of roof caps 10 can be processed at the same time, and robots on each slide rail 100 perform different task operations according to requirements, thereby improving productivity of a production line. The robot 200 performs punching operation, so that accuracy and execution of punching can be ensured, input of manpower can be reduced, and labor cost can be reduced.

Other constructions and operations of the punch processing assembly 1 according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A punch processing assembly, comprising:

a slide rail;

a robot movably mounted to the slide rail, the robot being configured with a mounting plate;

the grabbing mechanism is detachably and rotatably arranged on the mounting plate and is suitable for grabbing a car body top cover;

the grabbing mechanism grabs the car body top cover and transfers the car body top cover to the locating tool, and the locating tool is used for bearing and fixing the car body top cover;

and the punching gun is suitable for replacing the grabbing mechanism and is detachably and rotatably mounted on the mounting plate.

2. The punch processing assembly of claim 1, wherein the robot comprises:

the driving base is movably arranged on the sliding rail;

a first rocker arm rotatably connected to the drive base;

the second rocker arm is rotatably connected to one end, away from the driving base, of the first rocker arm;

a third rocker arm; the third rocker arm is rotatably connected to an end of the second rocker arm remote from the first rocker arm, and the mounting plate is formed for the third rocker arm.

3. The punch tooling assembly of claim 2, wherein the second rocker arm comprises:

the first rotating arm and the second rotating arm are the same in axis, and the second rotating arm is rotatably connected to the first rotating arm along the axis.

4. A punch processing assembly according to claim 3, wherein the second rocker arm is configured with first and second spaced apart arms, and the third rocker arm is rotatably mounted between the first and second arms.

5. The punch processing assembly of claim 1, wherein the gripping mechanism comprises:

a frame detachably and rotatably mounted to the mounting plate;

the lower supporting claw is connected to the bottom of the frame, rotates between an avoidance position and a supporting position, and is suitable for being supported on the bottom of the vehicle body top cover when being positioned at the supporting position;

the upper pressing plate is connected to the frame and located above the lower supporting claws, and is suitable for being pressed on the top of the vehicle body top cover.

6. The punch tooling assembly of claim 5, wherein the frame comprises:

the outer contour of the side grabbing frame is rectangular, the center of the side grabbing frame is detachably and rotatably connected to the mounting plate, and lower supporting claws are arranged on two short sides of the side grabbing frame;

and the front grabbing frame is connected with one long side of the side grabbing frame.

7. The punch machining assembly of claim 1, wherein the positioning tooling comprises:

the tool mounting plate horizontally extends;

the support columns are arranged on the tool mounting plate and extend vertically upwards;

the positioning clamping jaws are correspondingly arranged on the supporting upright posts one by one and are suitable for clamping and fixing the vehicle body top cover.

8. The punch machining assembly of claim 7, wherein the positioning jaw comprises:

the horizontal clamping jaw and the vertical clamping jaw are respectively installed on the corresponding supporting upright posts, the horizontal clamping jaw is clamped on the horizontal edge of the automobile body top cover, and the vertical clamping jaw is clamped on the vertical edge of the automobile body top cover.

9. The punch processing assembly according to claim 8, wherein a stop is configured on one side of the vertical jaw, the stop being configured with an upwardly opening stop slot adapted to support a vertical edge of the vehicle body roof.

10. The punch assembly of claim 1, wherein the plurality of slide rails, the plurality of robots and the punch gun are all located on opposite sides of the positioning fixture and extend in parallel, the plurality of slide rails are each mounted with the robots, and the robots on both sides of the positioning fixture are adapted to mount the punch gun to punch a roof of a vehicle body of the positioning fixture together.