Automobile safety belt processing clamp

Abstract

The utility model belongs to the technical field of clamp, specifically disclose a kind of automobile safety belt processing fixture, including device ontology, the middle position fixedly connected with limit box of device ontology, the inside sliding connection of limit box has first limit frame, the inside sliding connection of limit box has second limit frame with first limit frame side away from, the fixed connection of one end of limit box has motor, the output of motor is fixedly connected with bidirectional screw rod through shaft coupling, the utility model uses the clamping device on the surface of second limit frame and the support pole set on first limit frame to make safety belt folding can complete the detection of longer size safety belt, then using motor drive bidirectional screw rod rotation, make first limit frame and second limit frame synchronous to both ends movement, the distance between both can be accurately controlled, realize the stretching operation to safety belt, provide stable and controllable stretching force for tension detection, ensure the standardization of detection process and the reliability of result.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to a fixture for processing automotive seat belts. Background Technology

[0002] In today's rapidly developing automotive industry, vehicle safety performance has become one of the core indicators for measuring vehicle quality. As a key device to protect the lives of drivers and passengers, the quality and reliability of car seat belts have attracted much attention. To meet the needs of large-scale, high-precision production, machining fixtures have become an indispensable piece of equipment in the seat belt manufacturing process.

[0003] However, in the process of using existing technology, when conducting tensile tests on seat belts, due to the different lengths and widths of different seat belt models, some devices cannot meet the corresponding testing requirements due to size limitations when conducting safety tests on longer seat belts, affecting the accuracy of the test results. Therefore, a car seat belt processing fixture has been proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive seat belt processing fixture to solve the problem mentioned in the background art that, during the tensile testing of seat belts, due to the different lengths and widths of different seat belt models, some devices cannot meet the corresponding testing requirements when conducting safety tests on longer seat belts due to size limitations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a car seat belt processing fixture, comprising a device body, a limiting box fixedly connected to the middle position of the device body, a first limiting frame slidably connected inside the limiting box, a second limiting frame slidably connected to the side of the limiting box away from the first limiting frame, a motor fixedly connected to one end of the limiting box, a bidirectional threaded rod fixedly connected to the output end of the motor via a coupling, the outer surfaces of both ends of the bidirectional threaded rod being threadedly connected to the interiors of the first and second limiting frames respectively, two limiting grooves being formed inside the first limiting frame, two fixed rods slidably connected inside each limiting groove, a support rod rotatably connected inside the two fixed rods, and racks fixedly connected to the opposite ends of the two fixed rods, two sprockets rotatably connected to one side of the first limiting frame, a gear fixedly connected to one end of each of the two sprockets, the outer surface of the gear meshing with the outer surface of the two racks, the outer surfaces of the two sprockets being connected via chain drive, a rotating disk fixedly connected to the end of the sprocket away from the gear, and a clamping device provided on one side of the second limiting frame.

[0006] Preferably, the clamping device includes two tension sensors, one side of which is fixedly connected to the surface of the second limiting frame.

[0007] Preferably, the ends of the two tension sensors away from the second limiting frame are fixedly connected to a fixing box, and a fixing plate is provided inside the fixing box.

[0008] Preferably, the fixed plate is internally threaded with a rotating rod, and the bottom end of the rotating rod is rotatably connected to a clamping plate.

[0009] Preferably, the outer surface of the clamping plate is in contact with the inner wall of the fixing plate, and a limit block is fixedly connected to one side of the fixing box.

[0010] Preferably, a spring is fixedly connected to the inner wall of the limiting block, and one end of the spring is in contact with the surface of the slider.

[0011] Preferably, the outer surface of the end of the slider away from the spring is in contact with the inner wall of the fixed plate, and a handle is fixedly connected to the upper surface of the slider.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This automotive seat belt processing fixture, through the clamping device on the surface of the second limit frame and the support rod set on the first limit frame, allows the seat belt to be folded, enabling the testing of longer seat belts. Then, the double-threaded rod driven by the motor rotates, causing the first and second limit frames to move synchronously to both ends. The distance between the two can be precisely controlled to realize the stretching operation of the seat belt, providing a stable and controllable tensile force for tensile testing, ensuring the standardization of the testing process and the reliability of the results.

[0013] 2. This automotive seat belt processing fixture, with its quick-release structure consisting of a handle, slider, spring, and limit block, allows for easy removal or insertion of the fixing plate from the fixing box, enabling rapid replacement of the fixing plate. By using fixing plates of different specifications, it can match seat belts of different widths, greatly improving the fixture's adaptability to diverse testing needs and shortening the time for replacing adaptable parts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a car seat belt processing fixture according to the present invention; Figure 2 This is a schematic diagram of the structure of the fixing plate of this utility model; Figure 3 This is a schematic diagram of the structure of the first limiting frame of this utility model; Figure 4 This is a schematic diagram of the structure of the limiting box of this utility model; Figure 5 This is a schematic diagram of the structure of the fixing rod of this utility model; Figure 6 This is a schematic diagram of the structure of the limiting block of this utility model; Figure 7 This utility model Figure 4 A schematic diagram of the structure at point A in the middle.

[0015] In the diagram: 1. Device body; 2. Limiting box; 3. First limiting frame; 4. Fixing rod; 5. Support rod; 6. Second limiting frame; 7. Fixing plate; 8. Clamping plate; 9. Rotating rod; 10. Tension sensor; 11. Limiting block; 12. Handle; 13. Rotating disk; 14. Motor; 15. Sprocket; 16. Bidirectional threaded rod; 17. Gear; 18. Rack; 19. Limiting groove; 20. Fixing box; 21. Slider; 22. Spring. Detailed Implementation

[0016] Please see Figure 1-7 This utility model provides a technical solution: a car seat belt processing fixture, including a device body 1. A limiting box 2 is fixedly connected to the middle position of the device body 1. A first limiting frame 3 is slidably connected inside the limiting box 2. A second limiting frame 6 is slidably connected to the side of the limiting box 2 away from the first limiting frame 3. The limiting box 2 serves to limit the first limiting frame 3 and the second limiting frame 6. A motor 14 is fixedly connected to one end of the limiting box 2. A bidirectional threaded rod 16 is fixedly connected to the output end of the motor 14 through a coupling. The motor 14 drives the bidirectional threaded rod 16 to rotate. The outer surfaces of both ends of the bidirectional threaded rod 16 are respectively threadedly connected to the interior of the first limiting frame 3 and the interior of the second limiting frame 6. The bidirectional threaded rod 16 serves to move the first limiting frame 3 and the second limiting frame 6 to the ends or the middle position. Two limiting grooves are formed inside the first limiting frame 3. 19. Each limiting groove 19 has two fixed rods slidably connected inside. The limiting groove 19 serves to limit the two fixed rods 4. The two fixed rods 4 are rotatably connected to a support rod 5. The support rod 5 serves to hold the seat belt and assist in stretching the safety belt. The opposite ends of the two fixed rods 4 are fixedly connected to racks 18. Two sprockets 15 are rotatably connected to one side of the first limiting frame 3. One end of each sprocket 15 is fixedly connected to a gear 17. The sprockets 15 drive the gears 17 to rotate. The outer surface of the gears 17 meshes with the outer surfaces of the two racks 18. The gears 17 cause the two racks 18 and the two fixed rods 4 to move simultaneously. The outer surfaces of the two sprockets 15 are connected by a chain drive. The end of one sprocket 15 away from the gear 17 is fixedly connected to a rotating disk 13. A clamping device is provided on one side of the second limiting frame 6.

[0017] The clamping device includes two tension sensors 10. One side of each tension sensor 10 is fixedly connected to the surface of the second limiting frame 6. The second limiting frame 6 is used to fix the position of the tension sensors 10 and to detect the tension of the seat belt through the tension sensors 10.

[0018] Among them, the ends of the two tension sensors 10 away from the second limit frame 6 are fixedly connected to a fixing box 20. The fixing box 20 is equipped with a fixing plate 7 inside, and the fixing box 20 serves to connect the fixing plate 7.

[0019] The fixed plate 7 has a rotating rod 9 internally threadedly connected to it. The bottom end of the rotating rod 9 is rotatably connected to a clamping plate 8. The rotating rod 9 is used to drive the rotating rod 9 and the fixed plate 7 through threaded transmission, which drives the clamping plate 8 to move downward, so that the bottom of the clamping plate 8 contacts the inner bottom wall of the fixed plate 7, thereby squeezing and limiting the seat belt.

[0020] The outer surface of the clamping plate 8 is in contact with the inner wall of the fixing plate 7. A limiting block 11 is fixedly connected to one side of the fixing box 20. A slider 21 is slidably connected inside the limiting block 11. The limiting block 11 serves to limit the position of the slider 21.

[0021] Among them, a spring 22 is fixedly connected to the inner wall of the limiting block 11. One end of the spring 22 is in contact with the surface of the slider 21. The spring 22 pushes the slider 21, so that the slider 21 is inserted into the interior of the fixing plate 7, thereby limiting and fixing the fixing plate 7.

[0022] The outer surface of the end of the slider 21 away from the spring 22 is in contact with the inner wall of the fixing plate 7. A handle 12 is fixedly connected to the upper surface of the slider 21. The handle 12 facilitates the movement of the slider 21 to compress the spring 22, so that the fixing plate 7 can be moved out of the fixing box 20. This facilitates quick replacement of the fixing plate 7 and makes it suitable for testing safety belts of different widths.

[0023] The motor is existing technology and will not be discussed in detail here. The components that match the motor include connecting wires, power supply, and microcontroller, which are also existing structures and will not be discussed in detail here.

[0024] Working principle: In use, pull the handle 12, causing the slider 21 to slide inside the limiting block 11, compressing the spring 22. Then, insert the fixing plate 7, which is suitable for the size of the seat belt to be tested, into the fixing box 20. Then, release the handle 12, the spring 22 returns to its original position, and pushes the slider 21 into the fixing plate 7, limiting and fixing the fixing plate 7. Then, insert one end of the seat belt to be tested between the lower surface of the clamping plate 8 and the inner bottom wall of the fixing plate 7. Then, rotate the rotating rod 9, causing the rotating rod 9 to engage with the inside of the fixing plate 7 through threaded transmission, pushing the clamping plate 8 downward to compress and fix the seat belt. Then, rotate the rotating disk 13 on one side of the first limiting frame 3, causing the rotating disk 13 to drive the sprocket 15 and gear 17 to rotate. Through the chain transmission on the surface of the sprocket 15, the other sprocket 15 and gear 17 rotate synchronously. Then, gear 17... The two racks 18 mesh with each other, causing them to drive the two fixed rods 4 to move. This moves the two fixed rods 4 closer together or further apart, ensuring the distance between them meets the width of the seat belt being tested. This limits the seat belt and prevents it from slipping during testing, thus preventing safety hazards. Similarly, the fixing plate 7 at the bottom of the second limiting frame 6 is replaced. The seat belt is then wrapped around the surface of the two support rods 5 and clamped and fixed inside the bottom fixing plate 7. After fixing, the motor 14 is started, driving the bidirectional threaded rod 16 to rotate. This causes the bidirectional threaded rod 16 to engage with the first limiting frame 3 and the second limiting frame 6, moving them further apart. The tension is then detected by two tension sensors 10, and the tension that the seat belt can withstand is calculated, completing the seat belt test.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for processing automotive seat belts, comprising a device body (1), characterized in that: A limiting box (2) is fixedly connected to the middle position of the device body (1). A first limiting frame (3) is slidably connected inside the limiting box (2). A second limiting frame (6) is slidably connected to the side of the limiting box (2) away from the first limiting frame (3). A motor (14) is fixedly connected to one end of the limiting box (2). A bidirectional threaded rod (16) is fixedly connected to the output end of the motor (14) through a coupling. The outer surfaces of both ends of the bidirectional threaded rod (16) are threadedly connected to the interior of the first limiting frame (3) and the interior of the second limiting frame (6), respectively. Two limiting grooves (19) are opened inside the first limiting frame (3). Each of the limiting grooves (19) The first limiting frame (3) has two fixed rods (4) slidably connected inside each of the two fixed rods (4), and a support rod (5) is rotatably connected inside each of the two fixed rods (4). A rack (18) is fixedly connected to the opposite ends of each of the two fixed rods (4). Two sprockets (15) are rotatably connected to one side of the first limiting frame (3). A gear (17) is fixedly connected to one end of each of the two sprockets (15). The outer surface of the gear (17) meshes with the outer surface of the two racks (18). The outer surfaces of the two sprockets (15) are connected by a chain drive. A rotating disk (13) is fixedly connected to the end of the sprocket (15) away from the gear (17). A clamping device is provided on one side of the second limiting frame (6).

2. The automotive seat belt processing fixture according to claim 1, characterized in that: The clamping device includes two tension sensors (10), one side of which is fixedly connected to the surface of the second limiting frame (6).

3. The automotive seatbelt processing fixture according to claim 2, characterized in that: The two tension sensors (10) are fixedly connected to a fixing box (20) at the end away from the second limit frame (6), and a fixing plate (7) is provided inside the fixing box (20).

4. The automotive seat belt processing fixture according to claim 3, characterized in that: The fixed plate (7) is internally threaded with a rotating rod (9), and the bottom end of the rotating rod (9) is rotatably connected to a clamping plate (8).

5. A car seat belt processing fixture according to claim 4, characterized in that: The outer surface of the clamp (8) is in contact with the inner wall of the fixing plate (7), and a limit block (11) is fixedly connected to one side of the fixing box (20).

6. The automotive seatbelt processing fixture according to claim 5, characterized in that: A spring (22) is fixedly connected to the inner wall of the limiting block (11), and one end of the spring (22) is in contact with the surface of the slider (21).

7. A car seat belt processing fixture according to claim 6, characterized in that: The outer surface of the end of the slider (21) away from the spring (22) is in contact with the inner wall of the fixing plate (7), and a handle (12) is fixedly connected to the upper surface of the slider (21).

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