A clamping device for automotive sheet metal

Abstract

This utility model discloses an automotive sheet metal clamping device, including a worktable. L-shaped support plates are provided at both the left and right ends of the worktable, and U-shaped frames are provided at the bottom of both the front and rear sides of the worktable. A clamping mechanism for pressing the automotive sheet metal is provided between the bottom of the worktable and the U-shaped frames. Two opposing first clamping blocks, which can move simultaneously in opposite directions, are provided on the upper right surface of the worktable. This utility model can achieve limiting and fixing of automotive sheet metal in six directions (front, back, left, right, up, and down), greatly improving the fixing effect of the sheet metal. It can effectively prevent the sheet metal from moving randomly during processing, thus affecting the processing quality. Furthermore, when clamping subsequent sheet metals in the same batch, simply controlling the up and down movement of the cylinder to move the clamping arm is sufficient to remove or fix the sheet metal. The operation is simple, convenient, and quick, greatly improving work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive sheet metal processing technology, and in particular relates to an automotive sheet metal clamping device. Background Technology

[0002] In the automobile production process, metal sheets need to be processed into the required shapes. Therefore, the metal sheets are cut, drilled, and subjected to a series of processing methods. However, regardless of the processing method, the metal sheets need to be fixed to prevent them from shifting due to vibration during processing.

[0003] Currently available automotive sheet metal clamping devices can only fix the left and right ends or the front and rear ends of the sheet metal, achieving only two-way limiting fixation. The force and vibration generated during processing are quite strong, which can easily cause the sheet metal to shake and move, thus affecting the processing quality. At the same time, it requires workers to make constant adjustments, which affects work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive sheet metal clamping device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A car sheet clamping device includes a worktable, with L-shaped support plates at both the left and right ends of the worktable, and U-shaped frames at the bottom of both the front and rear sides of the worktable. A clamping mechanism for clamping the car sheet is provided between the bottom of the worktable and the U-shaped frames. Two opposing first clamping blocks that can move in opposite directions simultaneously are provided on the upper surface of the right end of the worktable. A movable second clamping block is provided on the upper surface of the left end of the worktable. Movable positioning posts are provided at diagonal points on the upper surfaces of both the left and right ends of the worktable. The clamping mechanism includes a cylinder installed in the middle of the bottom of the worktable, and a first positioning post is provided at the bottom of the piston rod of the cylinder. The first connecting plate has U-shaped plates at both ends, and a second connecting plate is provided between the two ends of the two U-shaped plates. The two ends of the second connecting plate are rotatably connected to a first connecting rod via a pivot. The end of the first connecting rod is rotatably connected to a second connecting rod via a positioning pin. The end of the second connecting rod is rotatably connected to a triangular plate via a pivot. The bottom of the two vertical sections of the U-shaped frame is provided with connecting arms. One corner of the triangular plate is rotatably connected to the connecting arm via a pivot. The other corner of the triangular plate is rotatably connected to a third connecting rod via a pivot. The end of the third connecting rod is rotatably connected to a clamping arm via a pivot. The bottom of the clamping arm is rotatably connected to the side wall of the worktable via a pivot, and the end of the clamping arm is located above the worktable.

[0006] Preferably, both vertical sections of the U-shaped frame are provided with movable openings for the second connecting rod to pass through, and the two side walls of the movable openings are provided with horizontally distributed limiting openings, and the positioning pin is slidably connected to the limiting openings.

[0007] Preferably, a first groove is provided on the upper right surface of the workbench between the two first clamping blocks. A bidirectional lead screw is rotatably connected to the first groove through a bearing. A first threaded block is provided at the bottom of each of the two first clamping blocks. The first threaded block is threadedly connected to the bidirectional lead screw, and one end of the bidirectional lead screw extends to the outside of the first groove and is provided with a knob.

[0008] Preferably, a second groove is provided on the upper left surface of the workbench at the second clamping block, and a lead screw is rotatably connected to the second groove through a bearing. A second threaded block is provided at the bottom of the second clamping block, and the second threaded block is threadedly connected to the lead screw. One end of the lead screw extends to the outside of the second groove and is provided with a knob.

[0009] Preferably, the upper surface of the workbench is provided with limiting grooves on both sides of the first groove and the second groove, and the bottom sides of the first clamping block and the second clamping block are provided with limiting blocks that are slidably connected to the limiting grooves.

[0010] Preferably, the upper surface of the workbench is provided with a sliding groove at the positioning post, the bottom of the positioning post is provided with a sliding plate that is slidably connected to the sliding groove, and one side inner wall of the sliding groove is provided with a movable groove. One end of the sliding plate is provided with a movable plate that is slidably connected to the movable groove. The upper surface of the workbench is provided with an elongated hole above the movable groove that communicates with it. The movable plate is fixedly connected to the workbench by a stud and nut assembly.

[0011] Preferably, the length direction of the slide groove is perpendicular to the length direction of the limiting groove.

[0012] The automotive sheet metal clamping device of this utility model has the following advantages:

[0013] This invention can limit and fix automotive sheet metal in six directions: front, back, left, right, up, and down, greatly improving the fixing effect of the sheet metal. It can effectively prevent the sheet metal from moving randomly during processing and affecting the processing quality. When clamping subsequent sheet metal in the same batch, the sheet metal can be removed or fixed simply by controlling the cylinder to push it up and down to move the clamping arm. The operation is simple, convenient and quick, greatly improving work efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 Front view;

[0017] Figure 3 This is a schematic diagram of the structure of the workbench in this utility model;

[0018] Figure 4 This is a schematic diagram of the clamping mechanism in this utility model.

[0019] The markings in the diagram are as follows: 1. Workbench; 2. L-shaped support plate; 3. U-shaped frame; 4. First clamping block; 5. Second clamping block; 6. Positioning post; 7. Clamping mechanism; 8. Cylinder; 9. Connecting arm; 10. Movable port; 11. Limiting port; 12. First groove; 13. Second groove; 14. First threaded block; 15. Second threaded block; 16. Slide groove; 17. Slide plate; 18. Stud nut assembly; 19. First connecting plate; 20. U-shaped plate; 21. Second connecting plate; 22. First connecting rod; 23. Second connecting rod; 24. Triangular plate; 25. Third connecting rod; 26. Clamping arm. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0024] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0025] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an automotive sheet metal clamping device.

[0026] like Figure 1-4As shown, this utility model discloses an automotive sheet metal clamping device, including a worktable 1. L-shaped support plates 2 are provided at both the left and right ends of the worktable 1. U-shaped frames 3 are provided at the bottom of both the front and rear sides of the worktable 1. A clamping mechanism 7 for pressing the automotive sheet metal is provided between the bottom of the worktable 1 and the U-shaped frames 3. Two opposing first clamping blocks 4 are provided on the upper right surface of the worktable 1, which can move simultaneously in opposite directions. A first groove 12 is provided on the upper right surface of the worktable 1 between the two first clamping blocks 4. A bidirectional lead screw is rotatably connected to the first groove 12 via a bearing. A first threaded block 14 is provided at the bottom of each of the two first clamping blocks 4. The first threaded block 14 is threadedly connected to the bidirectional lead screw, and one end of the bidirectional lead screw extends to the outside of the first groove 12 and is provided with a knob. By rotating the bidirectional lead screw, the two first clamping blocks 4 can be moved away from or closer to each other, thus facilitating the adjustment of the distance between the two first clamping blocks 4 according to the width of the automotive sheet metal. When processing the same batch of automotive sheet metal, the distance between the two first clamping blocks 4 only needs to be adjusted once. A movable second clamping block 5 is provided on the upper left surface of the workbench 1. A second groove 13 is provided on the upper left surface of the workbench 1 at the location of the second clamping block 5. A lead screw is rotatably connected to the second groove 13 via a bearing. A second threaded block 15 is provided at the bottom of the second clamping block 5. The second threaded block 15 is threadedly connected to the lead screw, and one end of the lead screw extends to the outside of the second groove 13 and is provided with a knob. By rotating the lead screw, the second clamping block 5 can move along the width direction of the workbench 1, thereby contacting the side wall of the automotive sheet metal. Limiting grooves are provided on both sides of the upper surface of the workbench 1 at the location of the first groove 12 and the second groove 13. Limiting blocks that slide in conjunction with the limiting grooves are provided on both sides of the bottom of the first clamping block 4 and the second clamping block 5. The length direction of the sliding groove 16 is perpendicular to the length direction of the limiting groove. Through the cooperation between the limiting block and the limiting groove, the first clamping block 4 and the second clamping block 5 play a good limiting role.Movable positioning posts 6 are provided at diagonal points on the upper surfaces of both ends of the worktable 1. A sliding groove 16 is provided on the upper surface of the worktable 1 at the positioning post 6. A sliding plate 17 is provided at the bottom of the positioning post 6, slidably connected to the sliding groove 16. A movable groove is provided on one inner wall of the sliding groove 16. A movable plate is provided at one end of the sliding plate 17, slidably connected to the movable groove. An elongated hole communicating with the movable groove is provided on the upper surface of the worktable 1 above it. The movable plate is fixedly connected to the worktable 1 by a stud-nut assembly 18. The stud-nut assembly 18 is... The bottom of the stud is fixedly connected to the upper surface of the movable plate, and the top of the stud extends to the top of the elongated hole and is threadedly connected to the nut. With the setting of the two positioning pins 6 on the left and right, the position of the two positioning pins 6 can be adjusted according to the length of the automotive sheet, so that the automotive sheet is located between the two positioning pins 6. After adjustment, the sheet of this batch can be continuously positioned and used. The specific operation method is to loosen the nut to push the positioning pin 6 to move. When the two positioning pins 6 contact the side wall of the automotive sheet, tighten the nut. The operation is simple and convenient.

[0027] The clamping mechanism 7 includes a cylinder 8 installed at the middle of the bottom of the workbench 1. A first connecting plate 19 is provided at the bottom of the piston rod of the cylinder 8. U-shaped plates 20 are provided at both ends of the first connecting plate 19. A second connecting plate 21 is provided between the two ends of the two U-shaped plates 20. A first connecting rod 22 is rotatably connected to both ends of the second connecting plate 21 through a rotating shaft. A second connecting rod 23 is rotatably connected to the end of the first connecting rod 22 through a positioning pin. A triangular plate 24 is rotatably connected to the end of the second connecting rod 23 through a rotating shaft. A connecting arm 9 is provided at the bottom of the two vertical sections of the U-shaped frame 3. One corner of the triangular plate 24 is rotatably connected to the connecting arm 9 through a rotating shaft. A third connecting rod 25 is rotatably connected to the other corner of the triangular plate 24 through a rotating shaft. A clamping arm 26 is rotatably connected to the end of the third connecting rod 25 through a rotating shaft. The bottom of the clamping arm 26 is rotatably connected to the side wall of the workbench 1 through a rotating shaft, and the end of the clamping arm 26 is located above the workbench 1. Both vertical sections of the U-shaped frame 3 are provided with movable openings 10 for the second connecting rod 23 to pass through. The two side walls of the movable openings 10 are provided with horizontally distributed limiting openings 11. The positioning pin is slidably connected to the limiting openings 11. Through the cooperation between the movable openings 10, the limiting openings 11 and the positioning pin, when the cylinder 8 drives the first connecting plate 19 to move up and down, the second connecting rod 23 can move within the movable openings 10 under the action of the first connecting rod 22, thereby allowing the positioning pin to move within the limiting openings 11, which plays a good limiting role for the second connecting rod 23.

[0028] The working principle of this automotive sheet metal clamping device is as follows: When using automotive sheet metal from the same batch, the first sheet metal is placed on the worktable 1. Then, the positions of the two positioning posts 6 are adjusted so that both positioning posts 6 are in contact with the left and right sidewalls of the automotive sheet metal. Next, the positions of the two first clamping blocks 4 are adjusted so that the two first clamping blocks 4 are in contact with the front and rear sidewalls of the automotive sheet metal. Finally, the position of the second clamping block 5 is adjusted so that the second clamping block 5 is in contact with the rear sidewall of the automotive sheet metal. The cylinder 8 is activated, causing the cylinder 8 to push the first connecting plate 19 downward, thereby clamping the various connecting rods. With the cooperation of the clamping arm 26, the bottom of the clamping arm 26 contacts the upper surface of the plate, thereby clamping and fixing the plate. This device can limit and fix the automotive plate in six directions: front, back, left, right, up, and down, greatly improving the fixing effect of the plate. It can effectively prevent the plate from moving randomly during processing and affecting the processing quality. When clamping subsequent plates in the same batch, simply control the cylinder 8 to push it up and down, so that the clamping arm 26 can move, and the plate can be removed or fixed. The operation is simple, convenient and quick, greatly improving work efficiency.

[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A clamping device for automotive sheet metal, characterized in that: The workbench (1) includes an L-shaped support plate (2) at both its left and right ends, a U-shaped frame (3) at the bottom of both the front and rear sides of the workbench (1), a clamping mechanism (7) for pressing automotive sheet metal between the bottom of the workbench (1) and the U-shaped frame (3), two opposing first clamping blocks (4) that can move in opposite directions simultaneously on the upper right side of the workbench (1), a movable second clamping block (5) on the upper left side of the workbench (1), and movable positioning posts (6) at the diagonal corners of the upper left and right sides of the workbench (1); The clamping mechanism (7) includes a cylinder (8) installed at the middle of the bottom of the workbench (1). A first connecting plate (19) is provided at the bottom of the piston rod of the cylinder (8). U-shaped plates (20) are provided at both ends of the first connecting plate (19). A second connecting plate (21) is provided between the two ends of the two U-shaped plates (20). A first connecting rod (22) is rotatably connected to both ends of the second connecting plate (21) through a rotating shaft. A second connecting rod (23) is rotatably connected to the end of the first connecting rod (22) through a positioning pin. The end of the U-shaped frame (3) is rotatably connected to a triangular plate (24) via a pivot. Both vertical sections of the U-shaped frame (3) are provided with connecting arms (9). One corner of the triangular plate (24) is rotatably connected to the connecting arm (9) via a pivot. The other corner of the triangular plate (24) is rotatably connected to a third link (25) via a pivot. The end of the third link (25) is rotatably connected to a pressing arm (26) via a pivot. The bottom of the pressing arm (26) is rotatably connected to the side wall of the worktable (1) via a pivot. The end of the pressing arm (26) is located above the worktable (1).

2. The automotive sheet metal clamping device according to claim 1, characterized in that: Both vertical sections of the U-shaped frame (3) are provided with movable openings (10) for passing through the second connecting rod (23). The two side walls of the movable openings (10) are provided with horizontally distributed limiting openings (11). The positioning pin is slidably connected to the limiting openings (11).

3. The automotive sheet metal clamping device according to claim 1, characterized in that: The upper right surface of the workbench (1) is provided with a first groove (12) between two first clamping blocks (4). A bidirectional lead screw is rotatably connected in the first groove (12) through a bearing. A first threaded block (14) is provided at the bottom of each of the two first clamping blocks (4). The first threaded block (14) is threadedly connected to the bidirectional lead screw, and one end of the bidirectional lead screw extends to the outside of the first groove (12) and is provided with a knob.

4. The automotive sheet metal clamping device according to claim 3, characterized in that: The upper left surface of the workbench (1) is provided with a second groove (13) at the second clamping block (5). A lead screw is rotatably connected in the second groove (13) through a bearing. A second threaded block (15) is provided at the bottom of the second clamping block (5). The second threaded block (15) is threadedly connected to the lead screw, and one end of the lead screw extends to the outside of the second groove (13) and is provided with a knob.

5. The automotive sheet metal clamping device according to claim 4, characterized in that: The upper surface of the workbench (1) is provided with limiting grooves on both sides of the first groove (12) and the second groove (13), and the bottom sides of the first clamping block (4) and the second clamping block (5) are provided with limiting blocks that are slidably connected to the limiting grooves.

6. The automotive sheet metal clamping device according to claim 5, characterized in that: The upper surface of the workbench (1) is provided with a sliding groove (16) at the positioning post (6). The bottom of the positioning post (6) is provided with a sliding plate (17) that is slidably connected to the sliding groove (16). The inner wall of one side of the sliding groove (16) is provided with a movable groove. One end of the sliding plate (17) is provided with a movable plate that is slidably connected to the movable groove. The upper surface of the workbench (1) is provided with an elongated hole that is connected to the movable groove. The movable plate and the workbench (1) are fixedly connected by a stud and nut assembly (18).

7. The automotive sheet metal clamping device according to claim 6, characterized in that: The length direction of the slide (16) is perpendicular to the length direction of the limiting groove.

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