Clamping device for left inner plate and right inner plate of front longitudinal beam of automobile

Abstract

A clamping device for automobile front longitudinal beam left and right inner plates comprises a clamping frame and clamping mechanisms, the left end and the right end of the clamping frame are provided with a left arm and a right arm respectively, the left arm and the right arm are provided with the clamping mechanisms respectively, the clamping mechanism of the left arm is used for clamping an automobile front longitudinal beam left inner plate, and the clamping mechanism of the right arm is used for clamping an automobile front longitudinal beam right inner plate; the clamping mechanism comprises first clamping assemblies, second clamping assemblies and third clamping assemblies, the first clamping assemblies are installed on the left side of the rear end of the left arm and the right side of the rear end of the right arm respectively, the third clamping assemblies are installed on the left side of the front end of the left arm and the right side of the front end of the right arm respectively, and the second clamping assemblies are installed on the right side of the left arm and the left side of the right arm respectively. According to the content, the clamping device for the left inner plate and the right inner plate of the front longitudinal beam of the automobile solves the problems that in the prior art, workers need to carry parts to a specific machine for spot welding work, so that production efficiency is low, and work intensity is large.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts clamping, in particular to a clamping device for left and right inner plates of a front longitudinal beam of an automobile. Background Art

[0002] The front longitudinal beam is a critical load-bearing component in the vehicle structure. The left inner panel of a certain model requires 10 M6 projection weld nuts to be pre-welded at specific locations; while the right inner panel requires 8 M6 projection weld nuts and 2 M8 projection weld nuts to be pre-welded at specific locations. The previous production method required employees to move parts to a specific machine for spot welding, which was not only inefficient but also labor-intensive. Utility Model Content

[0003] The purpose of the utility model is to provide a clamping device for the left and right inner plates of the front longitudinal beam of an automobile, which solves the problem in the prior art that employees need to move parts to a specific machine for spot welding, resulting in low production efficiency and high work intensity.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A clamping device for the left and right inner panels of a front longitudinal beam of an automobile, comprising a clamping frame and a clamping mechanism, wherein the left and right ends of the clamping frame are respectively provided with a left arm and a right arm, and the left and right arms are respectively equipped with the clamping mechanisms, the clamping mechanism of the left arm is used to clamp the left inner panel of the front longitudinal beam of the automobile, and the clamping mechanism of the right arm is used to clamp the right inner panel of the front longitudinal beam of the automobile;

[0006] The clamping mechanism includes a first clamping assembly, a second clamping assembly and a third clamping assembly. The first clamping assembly is respectively installed on the left side of the rear end of the left arm and the right side of the rear end of the right arm, the third clamping assembly is respectively installed on the left side of the front end of the left arm and the right side of the front end of the right arm, and the second clamping assembly is respectively installed on the right side of the left arm and the left side of the right arm.

[0007] Further, the first clamping assembly includes a first driving portion, a first mounting plate, a first fixed arm, a first fixed clamping block, a first movable arm, a first swinging clamping block and a first hinge;

[0008] The left arm and the right arm are respectively equipped with the first driving part, the first mounting plate is installed on the first driving part, the first fixed arm is installed on the first mounting plate, and the first fixing clamp is installed on the first fixed arm;

[0009] One end of the first movable arm is hinged to the output end of the first driving part, and the other end of the first movable arm is installed with the first swing clamping block, and the first swing clamping block is directly opposite to the first fixed clamping block;

[0010] One end of the first hinge is hinged to the first movable arm, and the other end of the first hinge is hinged to the first fixed arm.

[0011] Specifically, the output end of the first driving part is provided with a first hinge block, the rear end of the first movable arm is hinged to the first hinge block, and the rear end of the first movable arm is provided with a first arc surface.

[0012] Preferably, a first air-avoiding groove is provided at one end of the first hinge, a second air-avoiding groove is provided at the other end of the first hinge, and the first hinge is an H-shaped structure;

[0013] The first fixed arm is hinged to the first air-avoiding slot, and the middle portion of the first movable arm is hinged to the second air-avoiding slot.

[0014] In some embodiments, a second curved surface is provided at a hinge point between the first fixing arm and the first air-avoiding groove.

[0015] Furthermore, the first clamping assembly further includes a first limiting block and a second limiting block;

[0016] The first limiting block is installed on the first fixed arm, and the second limiting block is installed on the first movable arm. The second limiting block can abut against the first limiting block.

[0017] Specifically, the first limiting block is provided with a protrusion, and the second limiting block is provided with a groove, and the groove is molded and adapted to the protrusion.

[0018] Preferably, the third clamping assembly includes a third driving portion, a third mounting plate, a third fixed arm, a third fixed clamping block, a third movable arm, a third swinging clamping block and a third hinge;

[0019] The left arm and the right arm are respectively equipped with the third driving part, the third driving part is located in front of the first driving part, the third mounting plate is mounted on the third driving part, the third fixed arm is mounted on the third mounting plate, and the third fixed clamp is mounted on the third fixed arm;

[0020] One end of the third movable arm is hinged to the output end of the third driving part, and the other end of the third movable arm is equipped with the third swing clamping block, and the third swing clamping block is opposite to the third fixed clamping block;

[0021] One end of the third hinge is hinged to the third movable arm, and the other end of the third hinge is hinged to the third fixed arm.

[0022] In some embodiments, the third clamping assembly further includes a third limiting block and a fourth limiting block;

[0023] The third limiting block is installed on the third fixed arm, and the fourth limiting block is installed on the third movable arm. The fourth limiting block can abut against the third limiting block.

[0024] Furthermore, the first fixed clamping block, the first swinging clamping block, the third fixed clamping block and the third swinging clamping block are respectively provided with pads.

[0025] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0026] Through the clamping frame, left arm, right arm, clamping mechanism, first clamping assembly, second clamping assembly and third clamping assembly, the left inner plate and the right inner plate of the front longitudinal beam of the automobile can be clamped at the same time, and the two can be transferred to a special welding machine for positioning and welding with nuts, which is convenient and quick and helps to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a clamping device according to one embodiment of the present invention;

[0028] Figure 2 This is a schematic structural diagram of a first clamping assembly in one embodiment of the present utility model;

[0029] Figure 3 This is a schematic structural diagram of the first limiting block and the second limiting block in one embodiment of the present utility model;

[0030] Figure 4 This is a schematic structural diagram of a third clamping assembly in one embodiment of the present utility model;

[0031] Including: clamping frame 1, left arm 11, right arm 12, clamping mechanism 2, first clamping assembly 21, first driving part 211, first hinge block 2111, first mounting plate 212, first fixed arm 213, second arc surface 2131, first fixed clamping block 214, first movable arm 215, first arc surface 2151, first swinging clamping block 216, first hinge part 217, first avoidance groove 2171, second avoidance groove 2172, first limit block 218, protrusion 2181, second limit block 219, groove 2191, second clamping assembly 22, third clamping assembly 23, third driving part 231, third mounting plate 232, third fixed arm 233, third fixed clamping block 234, third movable arm 235, third swinging clamping block 236, third hinge part 237, third limit block 238, fourth limit block 239. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0034] In one embodiment of the present invention, Figure 1-4 As shown, a clamping device for the left and right inner panels of the front longitudinal beam of an automobile comprises a clamping frame 1 and a clamping mechanism 2, wherein the left and right ends of the clamping frame 1 are respectively provided with a left arm 11 and a right arm 12, and the left arm 11 and the right arm 12 are respectively installed with the clamping mechanism 2, the clamping mechanism 2 of the left arm 11 is used to clamp the left inner panel of the front longitudinal beam of the automobile, and the clamping mechanism 2 of the right arm 12 is used to clamp the right inner panel of the front longitudinal beam of the automobile; the clamping mechanism 2 comprises a first clamping assembly 21, a second clamping assembly 22 and a third clamping assembly 23, the first clamping assembly 21 is respectively installed on the left side of the rear end of the left arm 11 and the right side of the rear end of the right arm 12, the third clamping assembly 23 is respectively installed on the left side of the front end of the left arm 11 and the right side of the front end of the right arm 12, and the second clamping assembly 22 is respectively installed on the right side of the left arm 11 and the left side of the right arm 12.

[0035] In this embodiment, the number of the first clamping assembly 21, the second clamping assembly 22 and the third clamping assembly 23 are two respectively. During installation, the two first clamping assemblies 21 are respectively installed on the left side of the rear end of the left arm 11 and the right side of the rear end of the right arm 12, and the two third clamping assemblies 23 are respectively installed on the left side of the front end of the left arm 11 and the right side of the front end of the right arm 12. The third clamping assembly 23 is arranged opposite to the first clamping assembly 21, and the two second clamping assemblies 22 are respectively installed on the right side of the rear end of the left arm 11 and the left side of the rear end of the right arm 12. The second clamping assembly 22 is opposite to the first clamping assembly 21. The clamping device is specifically installed on the robot. When working, the robot clamps the left inner plate and the right inner plate of the front longitudinal beam of the automobile through the clamping device. The clamping mechanism 2 of the left arm 11 clamps the left inner plate of the front longitudinal beam of the automobile, and the clamping mechanism 2 of the right arm 12 clamps the left inner plate of the front longitudinal beam of the automobile. The right inner plate of the front longitudinal beam of the automobile is clamped. Specifically, the first clamping component 21, the second clamping component 22 and the third clamping component 23 of the left arm 11 clamp the left inner plate of the front longitudinal beam of the automobile, and the first clamping component 21, the second clamping component 22 and the third clamping component 23 of the right arm 12 clamp the right inner plate of the front longitudinal beam of the automobile. After the clamping is firm, the robot drives the clamping device to move to the special welding machine, and the two clamping mechanisms 2 at the left and right ends of the clamping frame 1 respectively place the left inner plate of the front longitudinal beam of the automobile and the right inner plate of the front longitudinal beam of the automobile on the special welding machine for welding with nuts; the present application uses the clamping frame 1, the left arm 11, the right arm 12, the clamping mechanism 2, the first clamping component 21, the second clamping component 22 and the third clamping component 23 to simultaneously clamp the left inner plate of the front longitudinal beam of the automobile and the right inner plate of the front longitudinal beam of the automobile, and transfer the two to the special welding machine for positioning and placement and then welding with nuts, which is convenient and fast, and is conducive to improving production efficiency.

[0036] like Figure 1-2 As shown, the first clamping assembly 21 includes a first driving part 211, a first mounting plate 212, a first fixed arm 213, a first fixed clamp 214, a first movable arm 215, a first swing clamp 216 and a first hinge 217; the left arm 11 and the right arm 12 are respectively installed with the first driving part 211, the first mounting plate 212 is installed on the first driving part 211, the first fixed arm 213 is installed on the first mounting plate 212, and the first fixed clamp 214 is installed on the first fixed arm 213; one end of the first movable arm 215 is hinged to the output end of the first driving part 211, and the other end of the first movable arm 215 is installed with the first swing clamp 216, and the first swing clamp 216 is opposite to the first fixed clamp 214; one end of the first hinge 217 is hinged to the first movable arm 215, and the other end of the first hinge 217 is hinged to the first fixed arm 213.

[0037] In this embodiment, the first clamping assembly 21 and the second clamping assembly 22 have the same structure, the first driving part 211 is a cylinder, the first swinging clamping block 216 and the first movable arm 215 are an integrally formed structure, and during installation, the first driving part 211 is installed on the left side of the rear end of the left arm 11 and on the right side of the rear end of the right arm 12 respectively. Specifically, the side surface of the first driving part 211 is installed on the left arm 11 or the right arm 12, the bottom of the first driving part 211 is installed with the first mounting plate 212, the first fixed arm 213 is installed on the first mounting plate 212, the first fixed clamping block 214 is installed on the first fixed arm 213, the output end of the first driving part 211 passes through the first mounting plate 212 and is hinged to one end of the first movable arm 215, the other end of the first movable arm 215 is installed with the first swinging clamping block 216, one end of the first hinge 217 is hinged to the first fixed arm 213, and the other end of the first hinge 217 is hinged to the first movable arm 215.

[0038] During operation, the output end of the first driving part 211 telescopically drives one end of the first movable arm 215, and cooperates with the adaptive swing adjustment of the first hinge 217 to make the first swing clamp 216 at the other end of the first movable arm 215 swing, so that the first swing clamp 216 and the first fixed clamp 214 interact with each other to clamp or release, which is convenient and quick. Through the above-mentioned hinge structure, not only the structure of the first clamping component 21 is more compact and not easy to loosen, but also the adaptive adjustment ability is good, and it is not easy to get stuck or stuck.

[0039] like Figure 2-3 As shown, the output end of the first driving unit 211 is provided with a first hinge block 2111, the rear end of the first movable arm 215 is hinged to the first hinge block 2111, and the rear end of the first movable arm 215 is provided with a first curved surface 2151. In this embodiment, the output end of the first driving unit 211 is hinged to the first movable arm 215 via the first hinge block 2111. Specifically, the rear end of the first movable arm 215 is hinged to the first hinge block 2111, and the rear end of the first movable arm 215 is provided with a first curved surface 2151. By providing a curved surface instead of a conventional edge structure, the rear end of the first movable arm 215 is prevented from jamming or stopping during swinging.

[0040] like Figure 2-3As shown, one end of the first hinge 217 is provided with a first clearance groove 2171, and the other end of the first hinge 217 is provided with a second clearance groove 2172. The first hinge 217 has an H-shaped structure. The first fixed arm 213 is hinged to the first clearance groove 2171, and the middle portion of the first movable arm 215 is hinged to the second clearance groove 2172. In this embodiment, the first hinge 217 has a first clearance groove 2171 at the top and a second clearance groove 2172 at the bottom, so that the first fixed arm 213 is hinged to the first clearance groove 2171, and the middle portion of the first movable arm 215 is hinged to the second clearance groove 2172. The first hinge 217 has an H-shaped structure. This design is conducive to improving the connection stability among the first fixed arm 213, the first movable arm 215, and the first hinge 217, thereby improving the structural stability of the first clamping assembly 21.

[0041] like Figure 2-3 As shown, a second curved surface 2131 is provided at the hinged joint between the first fixed arm 213 and the first air-avoiding groove 2171. In this embodiment, the second curved surface 2131 is provided at the hinged joint between the first fixed arm 213 and the first air-avoiding groove 2171. During the clamping process, the top of the first hinged member 217 needs to swing along this curved surface. Therefore, the use of a curved surface instead of a conventional edge structure can prevent the hinged member 217 from getting stuck or stuck during the adaptive swing adjustment process.

[0042] like Figure 2-3 As shown, the first clamping assembly 21 further includes a first limiting block 218 and a second limiting block 219; the first limiting block 218 is mounted on the first fixed arm 213, and the second limiting block 219 is mounted on the first movable arm 215, and the second limiting block 219 can abut against the first limiting block 218. In this embodiment, the first limiting block 218 is mounted on the first fixed arm 213, and the second limiting block 219 is mounted on the first movable arm 215, and both the first limiting block 218 and the second limiting block 219 are located in front of the first hinge 217. During the clamping process, when the second limiting block 219 abuts against the first limiting block 218, it indicates that the part has been clamped. In addition, by providing the first limiting block 218 and the second limiting block 219, the two cooperate to play a limiting role, which can prevent the first fixed clamping block 214 and the first swinging clamping block 216 from over-clamping the part and causing damage to the part.

[0043] like Figure 2-3As shown, the first limiting block 218 is provided with a protrusion 2181, and the second limiting block 219 is provided with a groove 2191, and the groove 2191 is adapted to be molded together with the protrusion 2181. In this embodiment, the protrusion 2181 is provided at the bottom of the first limiting block 218, and the groove 2191 is provided at the top of the second limiting block 219. Both the protrusion 2181 and the groove 2191 are V-shaped structures. Through the above design, the second limiting block 219 can be smoothly molded together with the first limiting block 218 to limit the position.

[0044] like Figure 4As shown, the third clamping assembly 23 includes a third driving portion 231, a third mounting plate 232, a third fixed arm 233, a third fixed clamping block 234, a third movable arm 235, a third swing clamping block 236 and a third hinge 237; the left arm 11 and the right arm 12 are respectively installed with the third driving portion 231, the third driving portion 231 is located on the front side of the first driving portion 211, the third mounting plate 232 is installed on the third driving portion 231, and the third fixed arm 233 is installed on the left arm 11 and the right arm 12. The third mounting plate 232, the third fixed clamp 234 is installed on the third fixed arm 233; one end of the third movable arm 235 is hinged to the output end of the third driving part 231, and the other end of the third movable arm 235 is installed with the third swing clamp 236, and the third swing clamp 236 is opposite to the third fixed clamp 234; one end of the third hinge 237 is hinged to the third movable arm 235, and the other end of the third hinge 237 is hinged to the third fixed arm 233. In this embodiment, the third driving part 231 is a cylinder, the third swing clamp 236 and the third movable arm 235 are an integrally formed structure, and the third hinge 237 has the same structure as the first hinge 217. During installation, the third driving part 231 is respectively installed on the left side of the rear end of the left arm 11 and on the right side of the rear end of the right arm 12. Specifically, the side of the third driving part 231 is installed on the left arm 11 or the right arm 12, and the third mounting plate 232 is installed on the bottom of the third driving part 231. The third fixed arm 233 is installed on the third mounting plate 232, and the third fixing clamp 234 is installed on the third fixed arm 233. The output end of the third driving part 231 passes through the third mounting plate 232 and is hinged to one end of the third movable arm 235. The other end of the third movable arm 235 is equipped with the third swing clamp 236, one end of the third hinge 237 is hinged to the third fixed arm 233, and the other end of the third hinge 237 is hinged to the third movable arm 235. During operation, the output end of the third driving part 231 telescopically drives one end of the third movable arm 235, and cooperates with the adaptive swing adjustment of the third hinge 237 to make the third swing clamp 236 at the other end of the third movable arm 235 swing, so that the third swing clamp 236 and the third fixed clamp 234 interact with each other to clamp or release, which is convenient and quick. Through the above-mentioned hinge structure, not only the structure of the third clamping assembly 23 is made more compact and not easy to loosen, but also the adaptive adjustment ability is good, and it is not easy to get stuck or stuck.

[0045] like Figure 4As shown, the third clamping assembly 23 also includes a third limit block 238 and a fourth limit block 239; the third limit block 238 is installed on the third fixed arm 233, and the fourth limit block 239 is installed on the third movable arm 235, and the fourth limit block 239 can be against the third limit block 238. In this embodiment, the third limit block 238 has the same structure as the first limit block 218, and the fourth limit block 239 has the same structure as the second limit block 219. The third limit block 238 is installed on the third fixed arm 233, and the fourth limit block 239 is installed on the third movable arm 235. The third limit block 238 and the fourth limit block 239 are both located behind the third hinge 237. During the clamping process, when the fourth limit block 239 abuts against the third limit block 238, it proves that the part has been clamped. By setting the third limit block 238 and the fourth limit block 239, the two cooperate to play a limiting role, which can prevent the third fixed clamp 234 and the third swing clamp 236 from over-clamping the part and causing damage to the part.

[0046] like Figure 1-4 As shown, the first fixed clamping block 214, the first swinging clamping block 216, the third fixed clamping block 234, and the third swinging clamping block 236 are each provided with a pad. In this embodiment, resin pads are provided on the bottom surface of the first fixed clamping block 214, the top surface of the first swinging clamping block 216, the bottom surface of the third fixed clamping block 234, and the top surface of the third swinging clamping block 236 to prevent the coating on the surface of the part from being damaged when the four clamps are clamped together.

[0047] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A clamping device for the left and right inner panels of a front longitudinal beam of an automobile, characterized in that: It includes a clamping frame and a clamping mechanism, wherein the left and right ends of the clamping frame are respectively provided with a left arm and a right arm, and the left and right arms are respectively equipped with the clamping mechanisms, the clamping mechanism of the left arm is used to clamp the left inner plate of the front longitudinal beam of the automobile, and the clamping mechanism of the right arm is used to clamp the right inner plate of the front longitudinal beam of the automobile; The clamping mechanism includes a first clamping assembly, a second clamping assembly and a third clamping assembly. The first clamping assembly is respectively installed on the left side of the rear end of the left arm and the right side of the rear end of the right arm, the third clamping assembly is respectively installed on the left side of the front end of the left arm and the right side of the front end of the right arm, and the second clamping assembly is respectively installed on the right side of the left arm and the left side of the right arm.

2. The clamping device for the left and right inner panels of the front longitudinal beam of an automobile according to claim 1, characterized in that: The first clamping assembly includes a first driving portion, a first mounting plate, a first fixed arm, a first fixed clamping block, a first movable arm, a first swinging clamping block and a first hinge; The left arm and the right arm are respectively equipped with the first driving part, the first mounting plate is installed on the first driving part, the first fixed arm is installed on the first mounting plate, and the first fixing clamp is installed on the first fixed arm; One end of the first movable arm is hinged to the output end of the first driving part, and the other end of the first movable arm is installed with the first swing clamping block, and the first swing clamping block is directly opposite to the first fixed clamping block; One end of the first hinge is hinged to the first movable arm, and the other end of the first hinge is hinged to the first fixed arm.

3. The clamping device for the left and right inner panels of the front longitudinal beam of an automobile according to claim 2, characterized in that: The output end of the first driving part is provided with a first hinge block, the rear end of the first movable arm is hinged to the first hinge block, and the rear end of the first movable arm is provided with a first arc surface.

4. The clamping device for the left and right inner panels of a front longitudinal beam of an automobile according to claim 2, characterized in that: A first air-avoiding groove is provided at one end of the first hinge, a second air-avoiding groove is provided at the other end of the first hinge, and the first hinge is an H-shaped structure; The first fixed arm is hinged to the first air-avoiding slot, and the middle portion of the first movable arm is hinged to the second air-avoiding slot.

5. The clamping device for the left and right inner panels of the front longitudinal beam of an automobile according to claim 4, characterized in that: A second arc surface is provided at a hinge point between the first fixing arm and the first air-avoiding groove.

6. The clamping device for the left and right inner panels of a front longitudinal beam of an automobile according to claim 2, characterized in that: The first clamping assembly further includes a first limiting block and a second limiting block; The first limiting block is installed on the first fixed arm, and the second limiting block is installed on the first movable arm. The second limiting block can abut against the first limiting block.

7. The clamping device for the left and right inner panels of a front longitudinal beam of an automobile according to claim 6, characterized in that: The first limiting block is provided with a protrusion, and the second limiting block is provided with a groove, and the groove is molded and adapted to the protrusion.

8. The clamping device for the left and right inner panels of a front longitudinal beam of an automobile according to claim 2, characterized in that: The third clamping assembly includes a third driving part, a third mounting plate, a third fixed arm, a third fixed clamping block, a third movable arm, a third swinging clamping block and a third hinge; The left arm and the right arm are respectively equipped with the third driving part, the third driving part is located in front of the first driving part, the third mounting plate is mounted on the third driving part, the third fixed arm is mounted on the third mounting plate, and the third fixed clamp is mounted on the third fixed arm; One end of the third movable arm is hinged to the output end of the third driving part, and the other end of the third movable arm is equipped with the third swing clamping block, and the third swing clamping block is opposite to the third fixed clamping block; One end of the third hinge is hinged to the third movable arm, and the other end of the third hinge is hinged to the third fixed arm.

9. The clamping device for the left and right inner panels of a front longitudinal beam of an automobile according to claim 8, characterized in that: The third clamping assembly further includes a third limiting block and a fourth limiting block; The third limiting block is installed on the third fixed arm, and the fourth limiting block is installed on the third movable arm. The fourth limiting block can abut against the third limiting block.

10. The clamping device for the left and right inner panels of a front longitudinal beam of an automobile according to claim 8, characterized in that: The first fixed clamping block, the first swing clamping block, the third fixed clamping block and the third swing clamping block are respectively provided with a pad.

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