Clamping and positioning device for automobile metal plate production

Abstract

The utility model discloses a clamping and positioning device for automobile sheet metal production, which relates to the technical field of sheet metal positioning equipment and comprises a base, a vertical seat is arranged on the base, a fixed arm is arranged on the vertical seat, a swing arm is arranged on the vertical seat, limit pins are symmetrically arranged on the swing arm, and a fixing component for fixing the swing arm is arranged on the fixed arm. The positioning pin arranged on the swing arm on the vertical seat is used for positioning the clamping of the metal plate on the clamp, and the swing arm is fixed through the fixing assembly after the swing arm is adjusted to different positions on the vertical seat, so that the precise clamping work of the two symmetrical metal plates of the automobile is realized, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal positioning equipment technology, and in particular to a clamping and positioning device for automotive sheet metal production. Background Technology

[0002] Automotive sheet metal parts generally refer to the metal shell of a car, usually made of steel sheets. Besides protection and aesthetics, automotive sheet metal parts are also the main carriers that withstand aerodynamic drag. During production, automotive sheet metal needs to be fixed in place using fixtures. However, when clamping symmetrical sheet metal parts, two different positioning devices are required to position the sheet metal on the fixture. Sheet metal production requires numerous tooling fixtures, resulting in high manufacturing costs.

[0003] For example, CN211490245U, published on September 15, 2020, discloses a welding fixture for automotive sheet metal parts, including a base plate, fixture assemblies, and loading guides. Multiple fixture assemblies are distributed around the workpiece to be clamped. The workpiece includes a shell, which includes a main plane, side walls, and flanges. The fixture assemblies can clamp the main plane. Positioning pins are installed vertically on the fixture assemblies, and positioning holes matching the positioning pins are provided on the flanges, allowing the positioning pins to be inserted into the positioning holes. Loading guides are distributed at each corner of the shell. Each loading guide includes a base, a guide rod, and a reinforcing rod. The base is mounted on the base plate, and the guide rod and reinforcing rod are welded to the base. A positioning gap is left between the guide rod and the side wall of the shell. The guide rod extends vertically upwards, and the reinforcing rod obliquely supports the lower side of the guide rod. The aforementioned device, when in use, cannot achieve rapid positioning during symmetrical clamping of automotive sheet metal parts, resulting in poor practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a more practical clamping and positioning device for automotive sheet metal production. This invention uses a fixing component to adjust the angle of the swing arm and then fix it, thereby fixing the position of the limiting pin on the swing arm after adjustment. Adjusting the position of the limiting pin achieves positioning of symmetrical automotive sheet metal, thus improving its practicality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is: a clamping and positioning device for automobile sheet metal production, including a base, a stand on the base, a fixed arm on the stand, a swing arm on the stand, symmetrical limit pins on the swing arm, and a fixing component for fixing the swing arm on the fixed arm.

[0006] The stand is symmetrically provided with two fixed arms, and the swing arm is disposed between the two fixed arms.

[0007] The stand is provided with a fixing plate, which is hinged to the swing arm by a pin.

[0008] The fixing component includes a mounting base connected to the fixing arm, the mounting base having a protrusion, a handle being connected to the protrusion, a horizontal shaft being provided on the handle, and a pull ring being provided on the horizontal shaft for engaging with the swing arm.

[0009] The pull ring is U-shaped, and the end of the pull ring is threaded. The end of the pull ring passes through a horizontal shaft, and there are fixing nuts on both sides of the horizontal shaft that are threadedly connected to the pull ring.

[0010] The swing arm is equipped with a hook that engages with the pull ring.

[0011] The fixed arm is provided with a side seat, and the side seat is provided with a buffer seat that engages with the swing arm.

[0012] The swing arm is provided with a connecting block, the connecting block is provided with a mounting block, and the limiting pin is connected to the mounting block.

[0013] An adjustment shim is provided between the connecting block and the mounting block.

[0014] The base and the stand are arranged perpendicular to each other, and a reinforcing rib is provided between the base and the stand.

[0015] The beneficial effects of this utility model are:

[0016] The positioning pins on the swing arm set on the stand are used to position the sheet metal on the fixture. After adjusting the swing arm to different positions on the stand, the swing arm is fixed by the fixing component, thereby achieving precise clamping of two symmetrical automotive sheet metals, which is more practical.

[0017] By gripping the handle and rotating it on the mounting base, the pull ring on the handle, which is hinged to the horizontal shaft, engages with the hook on the swing arm, thus fixing the swing arm. The swing arm is fixed quickly and easily, and the limit pin position can be adjusted for quick fixation, making it more practical.

[0018] The buffer seat installed on the fixed arm provides buffer protection for the swing arm, preventing direct collision between the swing arm and the fixed arm and thus increasing its service life and practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the clamping and positioning device for automotive sheet metal production according to this utility model.

[0020] Figure 2 for Figure 1 The front view.

[0021] In the attached diagram: 1-base, 2-stand, 3-reinforcing rib, 4-fixed arm, 5-swing arm, 6-connecting block, 7-mounting block, 8-limit pin, 9-fixing plate, 10-pin, 11-side seat, 12-buffer seat, 13-protrusion seat, 14-handle, 15-pull ring, 16-horizontal shaft, 17-hook. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figure 1 As shown, the clamping and positioning device for automotive sheet metal production includes a base 1, a stand 2 on the base 1, a fixed arm 4 on the stand 2, and a swing arm 5 on the stand 2. The swing arm 5 is rotatably connected to the stand 2. Two limit pins 8 are symmetrically arranged on the swing arm 5. The fixed arm 4 is provided with a fixing component for fixing the swing arm 5. The base 1 and the stand 2 are integrally formed. The base 1 has a through hole, which facilitates the bolts to pass through and enable the base 1 to be installed on the fixture.

[0025] In use, the base 1 is installed on one side of the clamp. The limiting pin 8 on the swing arm 5 positions the sheet metal clamped on the clamp, thus ensuring precise clamping of the sheet metal. When clamping another sheet metal, the swing arm 5 is rotated, causing the limiting pin 8 on the swing arm 5 to rotate. After the limiting pin 8 rotates to the designated position, the fixing component on the fixed arm 4 fixes the swing arm 5 and the limiting pin 8, thereby positioning the other sheet metal. The precise clamping of two symmetrical automotive sheet metals is achieved through the limiting pin 8 on the swing arm 5 and the fixing component on the fixed arm 4, enabling the positioning device to quickly switch between symmetrical sheet metal positioning modes, thus increasing its practicality.

[0026] Specifically, two fixed arms 4 are symmetrically arranged on the stand 2, and the swing arm 5 is arranged between the two fixed arms 4, so as to ensure that the fixing components on the fixed arms 4 stably fix the swing arm 5, thereby ensuring that the swing arm 5 can adjust the position of the limit pin 8 according to actual needs, so as to achieve stable and precise clamping of automotive sheet metal. Specifically, the fixed arms 4 and the stand 2 are Y-shaped.

[0027] The stand 2 is provided with a fixing plate 9, which is hinged to the swing arm 5 by a pin 10. The swing arm 5 can be easily rotated and adjusted on the stand 2 by the pin 10 on the fixing plate 9. Specifically, there are two fixing plates 9 connected by bolts in the middle position of the stand 2, and the pin 10 is set between the two fixing plates 9.

[0028] The fixing assembly includes a mounting base 13 connected to the fixing arm 4. The mounting base 13 has a boss 1301, and a handle 14 is connected to the boss 1301. The handle 14 has a horizontal shaft 16, and a pull ring 15 that engages with the swing arm 5 is provided on the horizontal shaft 16. When the handle 14 is gripped and rotated on the mounting base 14, the pull ring 15 on the handle 14, which is hinged to the horizontal shaft 16, engages with the swing arm 5, thereby fixing the swing arm 5. Specifically, the mounting base 13 is bolted to the fixing arm. The end of the handle 14 has an extension plate. Two extension plates are fitted onto the boss 1301. The extension plates are connected to the boss 1301 through a hinge shaft, thereby ensuring a precise connection between the handle 14 and the mounting base 13.

[0029] Specifically, the pull ring 15 is U-shaped, and the end of the pull ring 15 is threaded. The end of the pull ring 15 passes through the horizontal shaft 16. The horizontal shaft 16 has fixing nuts on both sides that are threadedly connected to the pull ring 15. The connection between the pull ring 15 and the horizontal shaft 16 is achieved by fixing the nuts. The relative position between the horizontal shaft 16 and the pull ring 15 can be adjusted by adjusting the position of the fixing nuts on both sides of the horizontal shaft 16.

[0030] The swing arm 5 is provided with a hook 17 that cooperates with the pull ring 15. The pull ring 15 and the hook 17 are engaged to achieve stable fixation of the swing arm 5. Specifically, two hooks 17 are symmetrically provided on both sides of the swing arm 5 near the fixed arm 4. The hooks 17 are connected to the swing arm 5 by bolts to achieve convenient installation and removal of the hooks 17.

[0031] The fixed arm 4 is provided with a side seat 11, and the side seat 11 is provided with a buffer seat 12 that engages with the swing arm 5. The buffer seat 12 buffers the collision between the fixed arm 4 and the swing arm 5, thereby ensuring that the position of the limit pin 8 on the swing arm 5 does not change after long-term use, thus increasing the service life of the positioning device. In this embodiment, the two fixed arms 4 are respectively connected to the side seat 11 by bolts, and the buffer seat 12 is connected to the side seat 11 by bolts. The side seat 12 is made of nylon.

[0032] The swing arm 5 is provided with a connecting block 6, and the connecting block 6 is provided with a mounting block 7. The limit pin 8 is connected to the mounting block 7. The connecting block 6 is connected to the swing arm 5 by bolts, and the mounting block 7 is connected to the connecting block 6 by bolts. The connecting block 6 and the limit pin 8 are threaded together. The connection of the connecting block 6 and the mounting block 7 enables the convenient installation and removal of the limit pin 8 on the swing arm 5.

[0033] An adjusting shim is provided between the connecting block 6 and the mounting block 7. The distance between the connecting block 6 and the mounting block 7 is adjusted by adjusting the shim, thereby fine-tuning the position of the limiting pin 8 on the mounting block 7. Specifically, the adjusting shim is provided with a through hole for the bolt to pass through.

[0034] The base 1 and the stand 2 are arranged perpendicularly to each other, and a reinforcing rib 3 is provided between the base 1 and the stand 2. The reinforcing rib 3 increases the strength of the base 1 and the stand 2, thereby increasing the service life of the entire device.

[0035] In summary, when using the positioning device, the base 1 is installed between the two clamps. When the automotive sheet metal is clamped on the clamps, the swing arm 5 is rotated so that the swing arm 5 contacts the buffer seat 12 on the fixed arm 4. The hand grips the handle 14 and rotates it on the mounting base 14, so that the pull ring 15 on the handle 14, which is hinged to the horizontal shaft 16, engages with the swing arm 5, thereby fixing the swing arm 5. After the swing arm 5 is fixed, the limit pin 8 is fixed, and the sheet metal is accurately fixed on the clamp through the limit pin 8, thereby achieving stable clamping and fixing of the sheet metal.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping and positioning device for automotive sheet metal production, comprising a base (1), characterized in that, The base (1) is provided with a stand (2), the stand (2) is provided with a fixed arm (4), the stand (2) is provided with a swing arm (5), the swing arm (5) is symmetrically provided with a limiting pin (8), and the fixed arm (4) is provided with a fixing component for fixing the swing arm (5).

2. The clamping and positioning device for automotive sheet metal production according to claim 1, characterized in that, The stand (2) is symmetrically provided with two fixed arms (4), and the swing arm (5) is located between the two fixed arms (4).

3. The clamping and positioning device for automotive sheet metal production according to claim 2, characterized in that, The stand (2) is provided with a fixing plate (9), which is hinged to the swing arm (5) by a pin (10).

4. The clamping and positioning device for automotive sheet metal production according to any one of claims 1-3, characterized in that, The fixing component includes a mounting base (13) connected to the fixing arm (4), a boss (1301) is provided on the mounting base (13), a handle (14) is connected to the boss (1301), a horizontal shaft (16) is provided on the handle (14), and a pull ring (15) is provided on the horizontal shaft (16) to engage with the swing arm (5).

5. The clamping and positioning device for automotive sheet metal production according to claim 4, characterized in that, The pull ring (15) is U-shaped, and the end of the pull ring (15) is threaded. The end of the pull ring (15) passes through the horizontal shaft (16), and the horizontal shaft (16) has fixing nuts on both sides that are threadedly connected to the pull ring (15).

6. The clamping and positioning device for automotive sheet metal production according to claim 4, characterized in that, The swing arm (5) is provided with a hook (17) that cooperates with the pull ring (15).

7. The clamping and positioning device for automotive sheet metal production according to claim 4, characterized in that, The fixed arm (4) is provided with a side seat (11), and the side seat (11) is provided with a buffer seat (12) that engages with the swing arm (5).

8. The clamping and positioning device for automotive sheet metal production according to claim 7, characterized in that, The swing arm (5) is provided with a connecting block (6), the connecting block (6) is provided with a mounting block (7), and the limiting pin (8) is connected to the mounting block (7).

9. The clamping and positioning device for automotive sheet metal production according to claim 8, characterized in that, An adjustment shim is provided between the connecting block (6) and the mounting block (7).

10. The clamping and positioning device for automotive sheet metal production according to claim 4, characterized in that, The base (1) and the stand (2) are arranged perpendicular to each other, and a reinforcing rib (3) is provided between the base (1) and the stand (2).

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