Rear cover auxiliary clamp for passenger car coating production

Abstract

The utility model discloses a rear cover auxiliary fixture for passenger car coating production, which relates to the technical field of automobile processing, and comprises a protective shell, a handle, a worm, a worm gear, a first connecting rod and a fixing fixture, the worm is rotatably connected to the inner side wall of the protective shell, the handle is rotatably connected to the outer side wall of the protective shell, one end of the worm is connected with the handle, and the other end of the worm is connected with the worm gear. Worm gears are symmetrically arranged on the two sides of the worm, rotationally connected to the inner wall of the protective shell and meshed with the worm, one end of the first connecting rod is connected with the worm gears, and the other end of the first connecting rod is connected with a fixing clamp. According to the rear cover auxiliary clamp for coating production of the passenger car, during coating operation, the opening angle of a rear cover of the passenger car can be adjusted, personalized coating operation of workers is facilitated, the positions of the first connecting rod and the protective shell can be adjusted in the coating process, and spraying dead corners are avoided; in addition, the fixing clamp is clamped and fixed in the process hole, so that firmer connection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive processing technology, and more specifically, to an auxiliary fixture for rear cover production in passenger vehicle painting. Background Technology

[0002] Fixtures are frequently used auxiliary tools, and various fixtures are required in the automobile manufacturing process. Fixtures are specifically used in the manufacturing and processing of automobile rear covers.

[0003] In the prior art, such as the Chinese utility model patent with announcement number CN203711278U, an auxiliary fixture for the rear cover of an automobile painting production is disclosed, including a rear cover clamp and a body clamp. The rear cover clamp is composed of an elastic inner clip that snaps into a fixing process hole provided on the rear cover. The body clamp is composed of a hanging ring that snaps into a bumper hook at the rear of the vehicle body. One end of the hanging ring is connected to the elastic inner clip through an elastic connecting rod. One end of the elastic connecting rod is welded to one end of the elastic inner clip. The other end of the elastic connecting rod is pivotally connected to one side of the hanging ring. This utility model can be used to fix the rear cover in the painting of automobiles. It has the advantages of very simple structure, very simple operation, easy manufacturing, safety and reliability, and excellent effect. However, the above technical solutions still have the following defects: 1. The fixing effect between the elastic inner clip and the fixed process hole is poor. Since the elastic force of the car rear cover is usually large when it is lifted, the elastic inner clip is easy to loosen from the fixed process hole, which will affect the painting operation; 2. Components such as U-shaped elastic fork, crossbar and elastic connecting rod can easily block the car rear cover, which will lead to dead corners that cannot be sprayed during the painting process; 3. The opening angle of the car rear cover cannot be adjusted during the painting process, which has poor applicability. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes an auxiliary fixture for the rear cover of passenger vehicles during painting production. During painting operations, it can not only adjust the opening angle of the rear cover of passenger vehicles to facilitate personalized painting operations, but also adjust the position of the first connecting rod and the protective shell during the spraying process to avoid spraying dead corners. In addition, the fixing clamp is fixed in the process hole to ensure a more secure connection.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides an auxiliary fixture for the rear cover of a passenger vehicle painting production, including a protective shell, a handle, a worm gear, a worm wheel, a first connecting rod, and a fixing clamp. The worm gear is rotatably connected to the inner wall of the protective shell, the handle is rotatably connected to the outer wall of the protective shell, and one end of the worm gear is connected to the handle. Worm wheels are symmetrically arranged on both sides of the worm gear, and the worm wheels are rotatably connected to the inner wall of the protective shell and mesh with the worm gear. One end of the first connecting rod is connected to the worm wheel, and the other end of the first connecting rod is connected to the fixing clamp.

[0007] In a preferred embodiment of this utility model, the fixing clamp includes a rotating block, a sleeve, a bolt rod, and a conical block. The rotating block is connected to the first connecting rod, and the sleeve is coaxially rotatably connected to the rotating block. The free end of the sleeve has two or more opening slots evenly provided. The bolt rod is coaxially provided on the inner side of the sleeve, and one end of the bolt rod is threadedly connected to the rotating block, while the other end of the bolt rod is rotatably connected to the conical block.

[0008] In a preferred embodiment of this invention, a rotating tube is fixedly provided on the side wall of the rotating block, and one end of the first connecting rod is rotatably connected to the rotating tube.

[0009] In a preferred embodiment of this invention, the diameter of the large-diameter end of the conical block is equal to the outer diameter of the sleeve, and the diameter of the small-diameter end of the conical block is smaller than the inner diameter of the sleeve.

[0010] In a preferred embodiment of this invention, the protective shell is further provided with a dial.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model proposes an auxiliary fixture for the rear cover of passenger vehicles during painting production. During painting operations, it can not only adjust the opening angle of the rear cover of passenger vehicles to facilitate personalized painting operations, but also adjust the position of the first connecting rod and the protective shell during the spraying process to avoid spraying dead corners. In addition, the fixing clamp is fixed in the process hole to ensure a more secure connection. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an auxiliary fixture for rear cover production in passenger vehicle painting, provided by a specific embodiment of this utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the half-section structure of the middle protective shell from a top-down perspective;

[0015] Figure 3 yes Figure 1 A schematic diagram of the structure of the fixed clamp.

[0016] In the picture:

[0017] 1. Protective shell; 2. Handle; 3. Worm gear; 4. Worm wheel; 5. First connecting rod; 6. Fixing clamp; 61. Rotating block; 62. Sleeve; 63. Opening slot; 64. Bolt rod; 65. Conical block; 66. Rotating tube; 7. Dial. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1-3 As shown in the embodiment, an auxiliary fixture for the rear cover of a passenger vehicle painting production is provided, including a protective shell 1, a handle 2, a worm gear 3, a worm wheel 4, a first connecting rod 5, and a fixing clamp 6. The worm gear 3 is rotatably connected to the inner wall of the protective shell 1, and the handle 2 is rotatably connected to the outer wall of the protective shell 1, with one end of the worm gear 3 connected to the handle 2. Worm wheels 4 are symmetrically arranged on both sides of the worm gear 3, and the worm wheels 4 are rotatably connected to the inner wall of the protective shell 1, with the worm wheels 3 meshing with the worm gear 4. One end of the first connecting rod 5 is connected to the worm wheel 4, and the other end of the first connecting rod 5 is connected to the fixing clamp 6. In this embodiment, the protective shell 1 has a U-shaped structure, and both the worm gear 3 and the worm wheel 4 are located on the inner side of the protective shell 1. The worm 3 is arranged horizontally inside the protective shell 1, and two worm wheels 4 are symmetrically arranged on the upper and lower sides of the worm 3. By turning the handle 2, the worm 3 can be driven to rotate, which in turn drives the worm wheels 4 to rotate synchronously in opposite directions. Since the worm 3 and worm wheels 4 have a self-locking function, the worm wheels 4 will not rotate due to external force if the worm 3 does not rotate. The first connecting rod 5 can be a straight rod, a bent rod, or other irregularly shaped rod, serving a connecting and supporting function. One end of the first connecting rod 5 is connected to the center of the end face of the worm gear 4, so that when the worm gear 4 rotates, it can drive the first connecting rod 5 to rotate synchronously, thereby adjusting the opening angle between the two first connecting rods 5 and controlling different opening angles of the passenger car rear cover, facilitating personalized painting operations. Simultaneously, during the painting process, by driving the first connecting rod 5 to rotate, the first connecting rod 5 and the protective shell 1 can be moved to other positions, thus facilitating painting operations on areas of the passenger car rear cover that were originally blocked by the first connecting rod 5 and the protective shell 1, eliminating painting dead angles and ensuring painting quality. The fixing clamp 6 can be engaged and fixed with the process holes on the passenger car rear cover and the passenger car body to prevent the clamp from accidentally disengaging during use.

[0020] Specifically, the fixing fixture 6 includes a rotating block 61, a sleeve 62, a bolt rod 64, and a conical block 65. The rotating block 61 is connected to the first connecting rod 5. The sleeve 62 is coaxially rotatably connected to the rotating block 61. The free end of the sleeve 62 has two or more evenly spaced slots 63. The bolt rod 64 is coaxially arranged inside the sleeve 62, with one end of the bolt rod 64 threadedly connected to the rotating block 61 and the other end of the bolt rod 64 rotatably connected to the conical block 65. In this embodiment, the rotating block 61 has a cylindrical structure, and one end of the sleeve 62 is rotatably connected to one end of the rotating block 61, allowing the sleeve 62 and the rotating block 61 to rotate relative to each other. The outer diameter of the sleeve 62 is the same as the diameter of the rotating block 61. During installation, one end of the sleeve 62 extends into the process hole, while the rotating block 61 is completely outside the process hole. The bolt rod 64 is threaded and coaxial with the rotating block 61, and is threadedly connected. When the bolt rod 64 is rotated, the bolt rod 64 and the rotating block 61 move relative to each other, thereby causing the conical block 65 to move synchronously. For example, when the bolt rod 64 rotates clockwise, it will cause the conical block 65 to move closer to the rotating block 61; conversely, when the bolt rod 64 rotates counterclockwise, it will cause the conical block 65 to move away from the rotating block 61. The sleeve 62 is made of steel with a certain degree of elasticity. When the conical block 65 moves closer to the rotating block 61, it will squeeze the side wall of the sleeve 62 and bend it, thus squeezing it to fit against the inner wall of the process hole for fixation. After the conical block 65 moves away from the rotating block 61, the bent part of the sleeve 62 will gradually return to its original shape under the action of the spring force, so that the operator can remove the fixing clamp 6 from the process hole. The conical block 65 has a conical frustum structure.

[0021] Specifically, a rotating tube 66 is fixedly mounted on the side wall of the rotating block 61, and one end of the first connecting rod 5 is rotatably connected to the rotating tube 66. In this embodiment, the central axis of the rotating tube 66 is perpendicular to the central axis of the rotating block 61, so that the rotating block 61 can rotate around the central axis of the rotating tube 66 to adjust the orientation of the fixing clamp 6. This can meet the clamping and fixing needs of passenger car rear covers of different sizes and models, and has good applicability.

[0022] Specifically, the diameter of the large-diameter end of the tapered block 65 is equal to the outer diameter of the sleeve 62, and the diameter of the small-diameter end of the tapered block 65 is smaller than the inner diameter of the sleeve 62. In this embodiment, the tapered block 65 is made of steel, and the hardness of the tapered block 65 is greater than the hardness of the sleeve 62.

[0023] Specifically, the protective shell 1 is also equipped with a dial 7. In this embodiment, the dial 7 facilitates the operator to accurately adjust the opening angle of the two first connecting rods 5, thus facilitating the installation and use of the device.

[0024] Working principle: During use, the operator rotates handle 2 to drive worm gear 3 to rotate. The rotation of worm gear 3 drives worm wheel 4 to rotate, which in turn drives first connecting rod 5 to rotate synchronously. This adjusts the opening angle of the two first connecting rods 5 and aligns the two fixing clamps 6 with the process holes on the passenger car body and the rear cover of the passenger car, respectively. Then, one end of the sleeve 62 of the fixing clamp 6 is inserted into the process hole, and the bolt rod 64 is rotated. The bolt rod 64 drives the conical block 65 to move closer to the rotating block 61, thereby opening one end of the sleeve 62 and fixing it against the inner wall of the process hole for fixation. This fixes the opening angle of the rear cover of the passenger car, facilitating painting operations. During the spraying process, the operator can also adjust the position of the first connecting rod 5 and the protective shell 1 by rotating handle 2 to prevent them from obstructing parts of the rear cover of the passenger car, thus helping to eliminate spraying dead corners. In addition, when performing painting operations, the angle of the passenger car rear cover can be adjusted by turning the handle 2, which facilitates personalized painting operations and improves the overall effect.

[0025] This utility model has been described through preferred embodiments. Those skilled in the art will understand 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. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. An auxiliary fixture for rear cover production in passenger vehicle painting, characterized in that: The device includes a protective shell (1), a handle (2), a worm (3), a worm wheel (4), a first connecting rod (5), and a fixing clamp (6). The worm (3) is rotatably connected to the inner wall of the protective shell (1). The handle (2) is rotatably connected to the outer wall of the protective shell (1), and one end of the worm (3) is connected to the handle (2). Worm wheels (4) are symmetrically arranged on both sides of the worm (3). The worm wheels (4) are rotatably connected to the inner wall of the protective shell (1), and the worm wheels (3) mesh with the worm (4). One end of the first connecting rod (5) is connected to the worm wheel (4), and the other end of the first connecting rod (5) is connected to the fixing clamp (6).

2. The auxiliary fixture for rear cover production in passenger vehicle painting according to claim 1, characterized in that: The fixing clamp (6) includes a rotating block (61), a sleeve (62), a bolt rod (64), and a conical block (65). The rotating block (61) is connected to the first connecting rod (5). The sleeve (62) is coaxially rotatably connected to the rotating block (61). The free end of the sleeve (62) has two or more opening slots (63) evenly provided. The bolt rod (64) is coaxially provided on the inner side of the sleeve (62). One end of the bolt rod (64) is threadedly connected to the rotating block (61), and the other end of the bolt rod (64) is rotatably connected to the conical block (65).

3. The auxiliary fixture for rear cover production in passenger vehicle painting according to claim 2, characterized in that: A rotating tube (66) is fixedly provided on the side wall of the rotating block (61), and one end of the first connecting rod (5) is rotatably connected to the rotating tube (66).

4. The auxiliary fixture for rear cover production in passenger vehicle painting according to claim 2, characterized in that: The diameter of the large-diameter end of the conical block (65) is equal to the outer diameter of the sleeve (62), and the diameter of the small-diameter end of the conical block (65) is smaller than the inner diameter of the sleeve (62).

5. The auxiliary fixture for rear cover production in passenger vehicle painting according to claim 1, characterized in that: The protective shell (1) is also provided with a dial (7).

Images