A clamping mechanical arm for processing automobile exterior parts

Abstract

The present invention relates to the technical field of automobile exterior trim processing, and in particular to an automobile exterior trim processing clamping mechanical arm; comprising a fixing plate installed at a driving end of the mechanical arm; a rectangular tube is fixedly installed at the lower end of the fixing plate, and a fixing mechanism is arranged in the rectangular tube; the fixing mechanism of the present invention first limits the left and right movement of a D-pillar exterior trim panel through a No. 2 clamping part, and at the same time drives a supporting part to resist and support the side wall of the D-pillar exterior trim panel to improve the stability of the D-pillar exterior trim panel during the processing of the vertical section, and then limits the front and rear movement of the D-pillar exterior trim panel through a No. 1 clamping part, and limits the movement of the No. 2 clamping part, and at the same time limits the up and down movement of the D-pillar exterior trim panel through the cooperation of a suction cup with a No. 1 bottom plate and a No. 2 bottom plate, so that the stability of the D-pillar exterior trim panel can be guaranteed through the above operation, thereby improving the quality of subsequent D-pillar exterior trim panel processing.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive exterior part processing, and particularly relates to a clamping robotic arm for automotive exterior part processing. Background Art

[0002] The D-pillar exterior panel is a component in automotive body design. It generally refers to an external decorative component on the pillar located at the rear corner of the vehicle body, connecting the roof and the rear side body panel; the cross-section of the D-pillar exterior panel is of a concave structure, and three bumps are provided on the inner wall of the D-pillar exterior panel (as Figure 7 shown), and buckles or screw holes are provided in the bumps for connecting with the D-pillar; the D-pillar exterior panel is mainly made of plastic and is processed by injection molding. After processing, it is necessary to adsorb and fix the D-pillar exterior panel with a robotic arm equipped with a suction cup for operations such as trimming the water inlet, grinding, and spraying.

[0003] However, the following problems exist in the current processing of the D-pillar exterior panel: The stability of the D-pillar exterior panel cannot be guaranteed only by the adsorption and fixation method of the suction cup. When the lateral force or vibration generated during grinding gradually weakens the adsorption force, and heat is generated during the grinding process and transferred to the suction cup, resulting in the softening of the suction cup and affecting the adsorption effect. Therefore, fixing the D-pillar exterior panel only by the suction cup is likely to cause displacement or detachment of the D-pillar exterior panel. Secondly, there is no additional structure to resist and support the vertical section of the D-pillar exterior panel, which is prone to deformation during the processing, thereby affecting the processing quality of the D-pillar exterior panel. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present application provide a clamping robotic arm for automotive exterior part processing to solve the above-mentioned technical problems.

[0005] To achieve the above object, the embodiments of the present application provide the following technical solutions: The embodiments of the present application provide a clamping robotic arm for automotive exterior part processing, including a fixing plate installed at the driving end of the robotic arm; a rectangular cylinder is fixedly installed at the lower end of the fixing plate, and a fixing mechanism is arranged inside the rectangular cylinder.

[0006] The fixing mechanism includes a first bottom plate. The middle part of the lower end of the horizontal section of the rectangular cylinder is fixedly installed with a first bottom plate through a first support column, and the lower end of the horizontal section of the rectangular cylinder is fixedly installed with second bottom plates located on the left and right sides of the first bottom plate through second support columns. A U-shaped plate is fixedly installed between the first bottom plate and the second bottom plates. The upper end of the vertical section of the U-shaped plate is fixedly connected to the lower end of the rectangular cylinder, and suction cups are fixedly installed on the U-shaped plate.

[0007] A first clamping portion for clamping the corresponding bumps of the D-pillar exterior panel front and back is arranged on the first bottom plate, and a support portion for resisting and supporting the side wall of the D-pillar exterior panel is arranged on the U-shaped plate.

[0008] The U-shaped plate is provided with a supporting portion for contacting and supporting the side wall of the D-pillar outer trim panel.

[0009] As a preferred solution, the No. 2 clamping part includes a No. 2 slide groove, and the No. 2 bottom plate is provided with two left-right symmetrical No. 2 slide grooves, and No. 2 clamping plates are installed in the No. 2 slide grooves for left-right sliding movement. The horizontal section of the rectangular tube is provided with No. 2 rectangular grooves corresponding to the No. 2 clamping plates one by one, and the upper end of the No. 2 clamping plate slides through the No. 2 rectangular grooves, and a pushing component for driving the No. 2 clamping plates in the two groups of No. 2 clamping parts to move synchronously is provided in the rectangular tube.

[0010] As a preferred embodiment, the pushing assembly includes a connecting plate, and a connecting plate is slidably installed on both the front and rear sides of the upper end of the horizontal section of the rectangular tube. The upper end of the No. 2 clamping plate on the right side of each group of No. 2 clamping parts is fixedly connected to the rear connecting plate, and the upper ends of the other two No. 2 clamping plates are fixedly connected to the front connecting plate. An actuator for driving the two connecting plates to move relative to each other is provided on the rectangular tube.

[0011] As a preferred solution, the No. 1 clamping part includes a No. 1 slide groove, and the No. 1 bottom plate is provided with two front-to-back symmetrical No. 1 slide grooves, and a No. 1 clamping plate is installed in the No. 1 slide groove for sliding forward and backward. The horizontal section of the rectangular tube is provided with a No. 1 rectangular groove corresponding to the No. 1 clamping plate one by one. The upper end of the No. 1 clamping plate slides through the No. 1 rectangular groove and then a rectangular plate is fixedly installed thereon. A limiting member for limiting the movement of the connecting plate is provided on the rectangular plate, and a push-pull member for driving the two rectangular plates to move relative to each other is provided on the rectangular tube.

[0012] As a preferred embodiment, the push-pull member includes a telescopic cylinder, and the telescopic cylinder is fixedly installed on the upper end of the horizontal section of the rectangular tube. The telescopic section of the telescopic cylinder is fixedly installed with a drive plate. The upper end of the rectangular plate is provided with an inclined groove inclined from left to right away from the middle of the rectangular tube, and a guide column is rotatably installed on the drive plate and matches the inclined groove one by one.

[0013] As a preferred embodiment, the support portion includes a rotating assembly, and multiple groups of rotating assemblies are arranged on the C-shaped plate from left to right, each group of rotating assemblies is composed of two front-to-back symmetrical shaft columns, the upper end of the shaft column rotates through the C-shaped plate and is fixedly installed with a spur gear, the lower end of the shaft rod penetrates the C-shaped plate and is fixedly installed with a support rod that contacts the side wall of the D-pillar exterior panel, and a transmission part for driving the spur gear to rotate is arranged on the C-shaped plate.

[0014] As a preferred embodiment, the transmission member includes a rack, and a rack meshing with the spur gear is slidably installed on the upper end of the C-shaped plate in a one-to-one manner. A connecting plate is fixedly installed on the rack on the same C-shaped plate. The connecting plate has an inverted C-shaped structure and is slidably installed on the horizontal section of the C-shaped plate. A groove is provided at the upper end of the connecting plate for the suction cup to pass through, and a driving component for synchronously driving the connecting plate to move is provided on the No. 2 clamping plate.

[0015] As a preferred embodiment, the actuator includes a support plate, a support plate located above the connecting plate is fixedly installed in the rectangular tube, a bidirectional cylinder is fixedly installed on the upper end of the support plate, and two telescopic sections of the bidirectional cylinder are fixedly connected to the corresponding connecting plate through a connecting block.

[0016] As a preferred solution, the limiting member includes a limiting column, and a limiting column is installed on the opposite surfaces of the two rectangular plates. The limiting column slides through the opposite rectangular plates and then enters the corresponding connecting plate.

[0017] As a preferred solution, the driving assembly includes a connecting rod, and the connecting rod is fixedly installed at one end of the connecting plate away from the No. 1 base plate. The end of the connecting rod away from the connecting plate slides through the C-shaped plate and is fixedly connected to the corresponding No. 2 clamping plate.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. The fixing mechanism of the present invention first limits the left and right movement of the D-pillar outer trim panel through the No. 2 clamping part, and at the same time drives the supporting part to resist and support the side wall of the D-pillar outer trim panel, so as to improve the stability of the vertical section of the D-pillar outer trim panel during processing, and then limits the front and rear movement of the D-pillar outer trim panel through the No. 1 clamping part, and limits the movement of the No. 2 clamping part, and at the same time limits the up and down movement of the D-pillar outer trim panel through the cooperation of the suction cup with the No. 1 bottom plate and the No. 2 bottom plate. The stability of the D-pillar outer trim panel can be guaranteed through the above operation, thereby improving the quality of subsequent D-pillar outer trim panel processing.

[0019] 2. The No. 2 clamping part provided in the present invention drives the No. 2 clamping plate to move through the actuator to clamp the corresponding protrusion on the D-pillar exterior panel to limit the left and right movement of the D-pillar exterior panel, and then the No. 1 clamping part drives the No. 1 clamping plate to clamp the corresponding protrusion on the D-pillar exterior panel through the push-pull member to limit the front and rear movement of the D-pillar exterior, and drives the corresponding limit column to insert into the corresponding connecting plate to limit the movement of the connecting plate, thereby ensuring the fixing stability of the D-pillar exterior panel of the No. 2 clamping part, and limiting the up and down movement of the D-pillar exterior panel through the cooperation of the suction cup with the No. 1 bottom plate and the No. 2 bottom plate, thereby improving the movement of the D-pillar exterior panel through multi-directional restrictions, thereby improving the stability of subsequent processing.

[0020] 3. The support portion provided in the present invention will drive the connecting plate to move through the movement of the second clamping plate, and the connecting plate will drive the shaft column to rotate through the engagement of the rack and the spur gear. The shaft column drives the support rod to rotate and contact and support the inner wall of the vertical section of the D-pillar outer panel, so as to reduce the deformation of the vertical section of the D-pillar outer panel in the subsequent processing process, thereby improving the processing quality of the D-pillar outer panel.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure after the D-pillar outer trim is clamped by the present invention.

[0024] Figure 2 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of the actuator of the present invention.

[0026] Figure 4 It is a schematic structural diagram of the position limiting member of the present invention.

[0027] Figure 5 It is a schematic structural diagram of the support portion of the present invention.

[0028] Figure 6 It is a schematic structural diagram of the push-pull member of the present invention.

[0029] Figure 7 Schematic diagram of the structure of the D-pillar exterior panel.

[0030] : 10. fixing plate; 11. rectangular tube; 2. fixing mechanism; 20. bottom plate No. 1; 21. bottom plate No. 2; 22. shaped plate; 23. suction cup; 24. clamping part No. 2; 240. clamping plate No. 2; 241. connecting plate; 3. actuator; 30. support plate; 31. bidirectional cylinder; 32. connecting block; 25. clamping part No. 1; 250. clamping plate No. 1; 251. rectangular plate; 4. limiting member; 40. limiting column; 5. push-pull member; 50. telescopic cylinder; 51. driving plate; 52. inclined groove; 53. guide column; 26. supporting part; 260. shaft column; 261. spur gear; 262. supporting rod; 6. transmission member; 60. rack; 61. connecting plate; 62. connecting rod. DETAILED DESCRIPTION

[0031] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be provided in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0032] As Figure 1 and Figure 3 shown, a processing clamping robotic arm for automotive exterior parts includes a fixing plate 10 installed at the driving end of the robotic arm; a rectangular cylinder 11 is fixedly installed at the lower end of the fixing plate 10, and a fixing mechanism 2 is arranged inside the rectangular cylinder 11.

[0033] As Figure 1 and Figure 2 shown, the fixing mechanism 2 includes a first bottom plate 20. The middle part of the lower end of the horizontal section of the rectangular cylinder 11 is fixedly installed with the first bottom plate 20 through a first support column. The lower end of the horizontal section of the rectangular cylinder 11 is fixedly installed with second bottom plates 21 located on the left and right sides of the first bottom plate 20 through second support columns. A U-shaped plate 22 is fixedly installed between the first bottom plate 20 and the second bottom plates 21. The upper end of the vertical section of the U-shaped plate 22 is fixedly connected to the lower end of the rectangular cylinder 11. Suction cups 23 are fixedly installed on the U-shaped plate 22.

[0034] As Figure 1 , Figure 2 and Figure 7 shown, a first clamping portion 25 for clamping the corresponding convex block of the D-pillar exterior panel front and back is arranged on the first bottom plate 20, a second clamping portion 24 for clamping the corresponding convex block of the D-pillar exterior panel left and right is arranged on the second bottom plates 21, and a support portion 26 for abutting and supporting the side wall of the D-pillar exterior panel is arranged on the U-shaped plate 22.

[0035] During specific operation, the external conveying mechanism conveys the D-pillar outer trim panel that is aligned and with the concave surface facing upward to the mechanical arm in sequence, and the mechanical arm drives the fixing mechanism 2 to move toward the D-pillar outer trim panel, so that the No. 1 bottom plate 20 and the No. 2 bottom plate 21 contact with the upper ends of the corresponding protrusions on the D-pillar outer trim panel, and then the No. 2 clamping part 24 clamps the corresponding protrusions to limit the left and right movement of the D-pillar outer trim panel, and at the same time, the suction cup 23 absorbs and fixes the D-pillar outer trim panel, and limits the up and down movement of the D-pillar outer trim panel through the cooperation of the No. 1 bottom plate 20 and the No. 2 bottom plate 21. In addition, while clamping the D-pillar exterior panel, the No. 2 clamping portion 24 will also drive the supporting portion 26 to resist the inner wall of the vertical section of the D-pillar exterior panel to support the vertical section of the D-pillar exterior panel to improve the stability of the vertical section of the D-pillar exterior panel. Then the No. 1 clamping portion 25 clamps the corresponding protrusion of the D-pillar exterior panel to limit the forward and backward movement of the D-pillar exterior panel. The above operations ensure the stability of the D-pillar exterior panel, thereby ensuring the stability of the subsequent D-pillar exterior panel during cutting, grinding and spraying.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the No. 2 clamping part 24 includes a No. 2 slide groove, and two left-right symmetrical No. 2 slide grooves are provided on the No. 2 bottom plate 21. No. 2 clamping plates 240 are installed in the No. 2 slide grooves for sliding left and right. The horizontal section of the rectangular tube 11 is provided with No. 2 rectangular grooves corresponding to the No. 2 clamping plates 240 one by one. The upper end of the No. 2 clamping plate 240 slides through the No. 2 rectangular grooves, and a pushing component for driving the No. 2 clamping plates 240 in the two groups of No. 2 clamping parts 24 to move synchronously is provided in the rectangular tube 11.

[0037] like Figure 3 and Figure 4 As shown, the pushing assembly includes a connecting plate 241, and a connecting plate 241 is slidably installed on both the front and rear sides of the upper end of the horizontal section of the rectangular tube 11. The upper end of the No. 2 clamping plate 240 located on the right side of each group of No. 2 clamping parts 24 is fixedly connected to the rear connecting plate 241, and the upper ends of the other two No. 2 clamping plates 240 are fixedly connected to the front connecting plate 241. An actuator 3 for driving the two connecting plates 241 to move relative to each other is provided on the rectangular tube 11.

[0038] like Figure 3 As shown, the actuator 3 includes a support plate 30, and the support plate 30 located above the connecting plate 241 is fixedly installed in the rectangular tube 11, and a two-way cylinder 31 is fixedly installed on the upper end of the support plate 30, and the two telescopic sections of the two-way cylinder 31 are fixedly connected to the corresponding connecting plate 241 through a connecting block 32.

[0039] During specific operation, the two telescopic sections of the bi-directional cylinder 31 drive the corresponding connecting plates 241 to move through the corresponding connecting blocks 32 respectively. The connecting plates 241 then drive the two second clamping plates 240 on the same second clamping portion 24 to move closer to each other, clamping the corresponding bumps on the outer trim panel of the D-pillar to restrict the left-right movement of the outer trim panel of the D-pillar. During the movement of the second clamping plates 240, the supporting portion 26 will be driven to abut and support the inner wall of the vertical section of the outer trim panel of the D-pillar, and then the front-back movement of the outer trim panel of the D-pillar is restricted by the first clamping portion 25, and the movement of the connecting plate 241 is restricted.

[0040] After the robotic arm drives the clamped and fixed outer trim panel of the D-pillar for processing, the first clamping portion 25 releases the front-back limit on the outer trim panel of the D-pillar and the limit on the connecting plate 241. Then the second clamping portion 24 releases the left-right limit on the outer trim panel of the D-pillar, and the suction cup 23 releases the adsorption on the outer trim panel of the D-pillar, thus completely releasing the fixation of the outer trim panel of the D-pillar, so as to clamp and fix the next outer trim panel of the D-pillar and perform subsequent processing.

[0041] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, the supporting portion 26 includes a rotating assembly. Multiple groups of rotating assemblies are arranged on the U-shaped plate 22 from left to right. Each group of rotating assemblies consists of two axles 260 that are symmetric front and back. The upper end of the axle 260 rotates through the U-shaped plate 22 and is fixedly installed with a spur gear 261. The lower end of the axle rod passes through the U-shaped plate 22 and is fixedly installed with a support rod 262 that abuts against the side wall of the outer trim panel of the D-pillar. A transmission member 6 for driving the spur gear 261 to rotate is arranged on the U-shaped plate 22.

[0042] As Figure 1 、 Figure 3 、 Figure 4 and Figure 5 shown, the transmission member 6 includes a rack 60. The upper end of the U-shaped plate 22 is slidably installed with racks 60 that are respectively meshed with the spur gears 261 one by one. A connecting plate 61 is fixedly installed on the racks 60 on the same U-shaped plate 22. The connecting plate 61 is in an inverted U-shaped structure, and the connecting plate 61 is slidably installed on the horizontal section of the U-shaped plate 22. A notch for the suction cup 23 to pass through is opened at the upper end of the connecting plate 61. A driving assembly for synchronously driving the connecting plate 61 to move is arranged on the second clamping plate 240.

[0043] As Figure 3 、 Figure 4 and Figure 5As shown, the driving assembly includes a connecting rod 62, and the connecting rod 62 is fixedly installed at one end of the connecting plate 61 away from the first base plate 20. The connecting rod 62 slides through the end of the connecting plate 61 away from the connecting plate 61 and is fixedly connected to the corresponding second clamping plate 240.

[0044] During specific operation, when the No. 2 clamping plate 240 moves to clamp the corresponding protrusion of the D-pillar exterior panel, the No. 2 clamping plate 240 pulls the corresponding connecting plate 61 to move through the connecting rod 62, and the connecting plate 61 drives the shaft column 260 to rotate through the cooperation of the corresponding rack 60 and the spur gear 261. The shaft column 260 drives the support rod 262 to rotate and contact the inner wall of the vertical section of the D-pillar exterior panel to improve the stability of the outer wall of the side panel of the D-pillar exterior panel.

[0045] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the No. 1 clamping portion 25 includes a No. 1 slide groove, and the No. 1 bottom plate 20 is provided with two front-to-back symmetrical No. 1 slide grooves, and a No. 1 clamping plate 250 is slidably installed in the No. 1 slide grooves. The horizontal section of the rectangular tube 11 is provided with a No. 1 rectangular groove corresponding to the No. 1 clamping plate 250 one by one, and the upper end of the No. 1 clamping plate 250 slides through the No. 1 rectangular groove and is fixedly installed with a rectangular plate 251, and a limiting member 4 for limiting the movement of the connecting plate 241 is provided on the rectangular plate 251, and a push-pull member 5 for driving the two rectangular plates 251 to move relative to each other is provided on the rectangular tube 11.

[0046] like Figure 3 , Figure 4 and Figure 6 As shown, the push-pull member 5 includes a telescopic cylinder 50, and the telescopic cylinder 50 is fixedly installed on the upper end of the horizontal section of the rectangular tube 11, and the telescopic section of the telescopic cylinder 50 is fixedly installed with a driving plate 51. The upper end of the rectangular plate 251 is provided with an inclined groove 52 inclined from left to right away from the middle of the rectangular tube 11, and a guide column 53 that cooperates with the inclined groove 52 is rotatably installed on the driving plate 51.

[0047] like Figure 4 and Figure 6 As shown, the limiting member 4 includes a limiting column 40 , and a limiting column 40 is installed on the opposite surfaces of the two rectangular plates 251 . The limiting column 40 slides through the opposite rectangular plates 251 and then enters the corresponding connecting plate 241 .

[0048] During specific operation, the telescopic cylinder 50 pushes the driving plate 51 to move, and the driving plate 51 drives the two rectangular plates 251 to approach each other through the cooperation of the guide column 53 and the inclined groove 52, and the rectangular plate 251 drives the No. 1 clamping plate 250 to clamp the corresponding protrusion on the D-pillar exterior panel to limit the forward and backward movement of the D-pillar exterior panel. In addition, when the two rectangular plates 251 approach each other, they will drive the limit column 40 to insert into the corresponding connecting plate 241 to limit the movement of the connecting plate 241, thereby ensuring that the No. 2 clamping part 24 clamps and fixes the D-pillar exterior panel.

[0049] After the D-pillar exterior panel is clamped and fixed, the robotic arm drives the fixed D-pillar exterior panel to perform water cut, grinding or spraying. After the processing is completed, the robotic arm moves the D-pillar exterior panel to the corresponding position of the conveying mechanism, then releases the fixation of the D-pillar exterior panel, and then clamps and fixes the next D-pillar exterior panel to be processed again for processing.

[0050] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical arm for clamping automobile exterior parts, comprising a fixing plate (10) mounted on a driving end of the mechanical arm; characterized in that: A rectangular tube (11) is fixedly mounted on the lower end of the fixing plate (10), and a fixing mechanism (2) is arranged inside the rectangular tube (11); wherein: The fixing mechanism (2) comprises a first bottom plate (20), the first bottom plate (20) is fixedly mounted at the middle of the lower end of the horizontal section of the rectangular tube (11) via a first pillar, a second bottom plate (21) located on the left and right sides of the first bottom plate (20) is fixedly mounted at the lower end of the horizontal section of the rectangular tube (11) via a second pillar, a shaped plate (22) is fixedly mounted between the first bottom plate (20) and the second bottom plate (21), the upper end of the vertical section of the shaped plate (22) is fixedly connected to the lower end of the rectangular tube (11), and a suction cup (23) is fixedly mounted on each of the shaped plates (22); The first bottom plate (20) is provided with a first clamping portion (25) for clamping the corresponding protrusion of the D-pillar outer panel front and rear, and the second bottom plate (21) is provided with a second clamping portion (24) for clamping the corresponding protrusion of the D-pillar outer panel left and right; the U-shaped plate (22) is provided with a supporting portion (26) for abutting and supporting the side wall of the D-pillar outer panel.

2. The automotive exterior parts processing clamping robot arm according to claim 1, characterized in that: The No. 2 clamping part (24) includes a No. 2 slide groove, and the No. 2 bottom plate (21) is provided with two No. 2 slide grooves which are symmetrical to each other, and a No. 2 clamping plate (240) is installed in the No. 2 slide grooves for sliding left and right, and a No. 2 rectangular groove corresponding to the No. 2 clamping plate (240) is provided in the horizontal section of the rectangular tube (11), and the upper end of the No. 2 clamping plate (240) slides through the No. 2 rectangular groove, and a pushing component for driving the No. 2 clamping plates (240) in the two groups of No. 2 clamping parts (24) to move synchronously is arranged in the rectangular tube (11).

3. The automobile exterior parts processing clamping robot arm according to claim 2, characterized in that: The pushing assembly comprises a connecting plate (241), and a connecting plate (241) is slidably installed on both the front and rear sides of the upper end of the horizontal section of the rectangular tube (11) to the left and right, the upper ends of the two No. 2 clamping plates (240) located on the right side of each group of No. 2 clamping parts (24) are fixedly connected to the rear connecting plate (241), and the upper ends of the remaining two No. 2 clamping plates (240) are fixedly connected to the front connecting plate (241), and an actuator (3) for driving the two connecting plates (241) to move relative to each other is provided on the rectangular tube (11).

4. The automobile exterior parts processing clamping robot arm according to claim 3, characterized in that: The No. 1 clamping portion (25) comprises a No. 1 slide groove, and the No. 1 bottom plate (20) is provided with two No. 1 slide grooves which are symmetrical in front and back, and a No. 1 clamping plate (250) is installed in the No. 1 slide grooves for sliding forward and backward, and a No. 1 rectangular groove corresponding to the No. 1 clamping plate (250) is opened in the horizontal section of the rectangular tube (11), and a rectangular plate (251) is fixedly installed after the upper end of the No. 1 clamping plate (250) slides through the No. 1 rectangular groove, and a limiting member (4) for limiting the movement of the connecting plate (241) is provided on the rectangular plate (251), and a push-pull member (5) for driving the two rectangular plates (251) to move relative to each other is provided on the rectangular tube (11).

5. The automobile exterior parts processing clamping robot arm according to claim 4, characterized in that: The described push-pull member (5) includes a telescopic cylinder (50). The telescopic cylinder (50) is fixedly installed at the upper end of the horizontal section of the rectangular cylinder (11). A drive plate (51) is fixedly installed at the telescopic section of the telescopic cylinder (50). Oblique grooves (52) that slope away from the middle of the rectangular cylinder (11) from left to right are formed at the upper ends of the rectangular plates (251). Guide posts (53) that are respectively matched with the oblique grooves (52) are rotatably installed on the drive plate (51).

6. The automobile exterior parts processing clamping robot arm according to claim 3, characterized in that: The described support portion (26) includes a rotating assembly. Multiple groups of rotating assemblies are arranged on the U-shaped plate (22) from left to right. Each group of rotating assemblies consists of two symmetrically arranged front and rear shaft columns (260). The upper ends of the shaft columns (260) rotatably penetrate through the U-shaped plate (22) and are fixedly installed with spur gears (261). The lower ends of the shaft rods penetrate through the U-shaped plate (22) and are fixedly installed with support rods (262) that abut against the side wall of the D-pillar exterior panel. A transmission member (6) for driving the spur gears (261) to rotate is arranged on the U-shaped plate (22).

7. The automobile exterior parts processing clamping robot arm according to claim 6, characterized in that: The described transmission member (6) includes a rack (60). The racks (60) that are respectively meshed with the spur gears (261) are slidably installed at the upper ends of the U-shaped plate (22) from left to right. A connecting plate (61) is fixedly installed on the racks (60) on the same U-shaped plate (22). The connecting plate (61) has an inverted U-shaped structure and is slidably installed on the horizontal section of the U-shaped plate (22). A notch for the suction cup (23) to movably penetrate through is formed at the upper end of the connecting plate (61). A drive assembly for synchronously driving the connecting plate (61) to move is arranged on the second clamping plate (240).

8. The automobile exterior parts processing clamping robot arm according to claim 3, characterized in that: The described actuator (3) includes a support plate (30). The support plate (30) is fixedly installed inside the rectangular cylinder (11) above the connecting plate (241). A double-acting cylinder (31) is fixedly installed at the upper end of the support plate (30). Both telescopic sections of the double-acting cylinder (31) are fixedly connected to the corresponding connecting plates (241) through connecting blocks (32).

9. The automobile exterior parts processing clamping robot arm according to claim 4, characterized in that: The described limiting member (4) includes a limiting post (40). A limiting post (40) is installed on the opposite surfaces of the two rectangular plates (251). The limiting post (40) slidably penetrates through the opposite rectangular plates (251) and extends into the corresponding connecting plate (241).

10. The automobile exterior parts processing clamping robot arm according to claim 7, characterized in that: The described drive assembly includes a connecting rod (62). The connecting rod (62) is fixedly installed at the end of the connecting plate (61) away from the first bottom plate (20). The end of the connecting rod (62) away from the connecting plate (61) slidably penetrates through the U-shaped plate (22) and is fixedly connected to the corresponding second clamping plate (240).

Images