A special device for positioning automobile bushing

Abstract

The utility model discloses a kind of automobile bushing positioning special device, it is related to automobile bushing technical field, including pressure head;The side end of the pressure head is fixed with air inlet pipe;The inside of the pressure head is provided with air inlet hole, and the side end of air inlet hole is connected with air inlet pipe;The top of the pressure head is fixed with guiding positioning;The inside of the guiding positioning is slidably connected with piston rod;The inside of the guiding positioning is slidably connected with wedge;Gas is transported to air inlet hole by air inlet pipe, and gas enters the inside of pressure head by air inlet hole to make piston rod slide, can drive head wedge to slide tensioning initiative open and product is tensioned to position, because active control mode is adopted, can effectively avoid the falling or unable assembly problem caused by product inner hole size deviation in existing plunger positioning or spring piece tensioning mode, simultaneously realizes the quick positioning and accurate positioning when product positioning, greatly improves assembly efficiency and stability in production process.

Description

Technical Field

[0001] This utility model relates to the field of automotive bushing technology, specifically to a special device for positioning automotive bushings. Background Technology

[0002] Automotive bushings are key components in the chassis and suspension system of automobiles. They are typically composed of a metal outer sleeve, a rubber elastomer, and an inner tube. They are mainly installed at the connection points between control arms, swing arms, and other components and the frame or body. They play a role in damping vibrations, reducing noise, compensating for assembly errors, and improving ride smoothness. Their performance directly affects the handling stability and ride comfort of the vehicle.

[0003] In the assembly and operation of existing automotive bushings, the inner tube is typically fitted with a corresponding pin or connecting shaft to achieve installation and positioning, while the outer tube is fitted with the mounting holes of the arm-like components with an interference fit or transition fit. The elastic deformation of the rubber elastomer is used to adapt to the relative movement between the components. When the vehicle is in motion, it bears the impact load from the road surface and transmits and buffers it to maintain the normal relative positional relationship of each component.

[0004] In existing automotive bushing positioning, the positioning device mostly adopts plunger positioning or spring tensioning method; however, when there is a deviation in the inner hole size of the automotive bushing product, the use of this positioning method will have obvious problems. After the product is installed with the pressure head, it is easy to fall off, or it cannot be installed smoothly due to size mismatch; at the same time, in the process of mass production, this positioning method is difficult to achieve rapid assembly and rapid positioning, which affects production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a special device for positioning automotive bushings, so as to solve the technical problem in the prior art that when automotive bushing products have deviations in inner hole size, the products are prone to falling off after the pressure head is installed, or cannot be installed smoothly due to size mismatch, which affects production efficiency.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A special device for positioning automotive bushings includes a pressure head; an air intake pipe is fixedly connected to the side end of the pressure head; an air intake hole is opened inside the pressure head, and the side end of the air intake hole is connected to the air intake pipe; a guide positioning device is fixedly connected to the top of the pressure head; a piston rod is slidably connected inside the guide positioning device; a wedge is slidably connected inside the guide positioning device; and the piston rod is slidably connected to the inner side wall of the wedge.

[0008] As a further embodiment of this utility model: a first reset ring is fixedly connected inside the guide positioning; a second reset ring is fixedly connected below the first reset ring inside the guide positioning; the first reset ring and the second reset ring are disposed on the wedge block.

[0009] As a further embodiment of this utility model: a return spring is fixedly connected inside the pressure head; the bottom end of the return spring is connected to the piston rod.

[0010] As a further embodiment of this utility model: a sealing ring is fixedly connected inside the piston rod; the sealing ring is located between the pressure head and the piston rod.

[0011] The beneficial effects of this utility model are as follows: gas is delivered to the air inlet through the air inlet pipe, and the gas enters the interior of the pressure head through the air inlet, causing the piston rod to slide. This drives the head wedge block to slide and actively open, and tensions the product into place. Because an active control method is adopted, it can effectively avoid the problems of product detachment or inability to assemble caused by deviations in the inner hole size of the product in existing plunger positioning or spring plate tensioning methods. At the same time, it achieves rapid positioning and precise positioning of the product, which greatly improves the assembly efficiency and stability in the production process. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the pressure head structure in this utility model;

[0015] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a utility model Figure 2 Enlarged view at point B in the middle;

[0017] In the diagram: 1. Pressure head; 2. Inlet pipe; 3. Guide positioning; 4. Wedge block; 5. Inlet port; 6. Piston rod; 7. First reset ring; 8. Second reset ring; 9. Sealing ring; 10. Reset spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-4As shown, a special device for positioning automotive bushings includes a pressure head 1; an air intake pipe 2 is fixedly connected to the side end of the pressure head 1; an air intake hole 5 is opened inside the pressure head 1, and the side end of the air intake hole 5 is connected to the air intake pipe 2; a guide positioning 3 is fixedly connected to the top end of the pressure head 1; a piston rod 6 is slidably connected inside the guide positioning 3; a wedge block 4 is slidably connected inside the guide positioning 3; and the piston rod 6 is slidably connected to the inner side wall of the wedge block 4.

[0020] When the product is placed in the working state, gas is delivered to the air inlet 5 through the air inlet pipe 2. The gas enters the interior of the pressure head 1 through the air inlet 5, causing the piston rod 6 to slide. This drives the head wedge 4 to slide and actively open, and tensions the product into place. Because of the active control method, it can effectively avoid the problems of product falling off or being unable to assemble caused by the deviation of the inner hole size in the existing plunger positioning or spring plate tensioning method. At the same time, it realizes the rapid positioning and accurate positioning of the product, which greatly improves the assembly efficiency and stability in the production process.

[0021] A first reset ring 7 is fixedly connected inside the guide positioning 3; a second reset ring 8 is fixedly connected below the first reset ring 7 inside the guide positioning 3; the first reset ring 7 and the second reset ring 8 are located on the wedge block 4.

[0022] The elasticity of the first reset ring 7 and the second reset ring 8 can limit the position of the wedge 4. When the piston rod 6 slides, it pushes the wedge 4 to tension and position the product. After the piston rod 6 slides and resets, the elasticity of the first reset ring 7 and the second reset ring 8 can reset the wedge 4 for the next operation.

[0023] A return spring 10 is fixedly connected inside the pressure head 1; the bottom end of the return spring 10 is connected to the piston rod 6.

[0024] The piston rod 6 slides by gas drive. The sliding of the piston rod 6 will stretch the return spring 10. When the positioning is completed, the gas supply stops, and the elasticity of the return spring 10 will pull the piston rod 6 back to its original position.

[0025] A sealing ring 9 is fixedly connected inside the piston rod 6; the sealing ring 9 is located between the pressure head 1 and the piston rod 6.

[0026] The sealing ring 9 is located between the piston rod 6 and the pressure head 1. The sealing ring 9 is made of rubber. The sealing ring 9 can improve the sealing between the pressure head 1 and the piston rod 6, ensuring that the piston rod 6 can be normally driven by gas to slide.

[0027] The working principle of this utility model is as follows: When the product is placed in the machine, gas is delivered to the air inlet 5 through the air inlet pipe 2. The gas enters the interior of the pressure head 1 through the air inlet 5, causing the piston rod 6 to slide. This drives the head wedge 4 to slide and actively open, tensioning the product into place. Because an active control method is adopted, it can effectively avoid the problems of product detachment or inability to assemble caused by deviations in the inner hole size of the product in existing plunger positioning or spring plate tensioning methods. At the same time, it achieves rapid and precise positioning of the product, greatly improving the assembly efficiency and stability in the production process. The elasticity of the first reset ring 7 and the second reset ring 8 can limit the position of the wedge 4. When the piston rod 6 slides, it pushes the wedge block 4 to tension and position the product. After the piston rod 6 slides back to its original position, the elasticity of the first reset ring 7 and the second reset ring 8 can reset the wedge block 4 for the next operation. The piston rod 6 slides by gas drive. The sliding of the piston rod 6 will stretch the reset spring 10. When the positioning is completed, the gas supply is stopped. At this time, the elasticity of the reset spring 10 will pull the piston rod 6 back to its original position. The sealing ring 9 is located between the piston rod 6 and the pressure head 1. The sealing ring 9 is made of rubber. The sealing ring 9 can improve the sealing between the pressure head 1 and the piston rod 6, ensuring that the piston rod 6 can slide normally by gas drive.

[0028] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A special device for positioning automotive bushings, characterized in that, It includes a pressure head (1); an air inlet pipe (2) is fixedly connected to the side end of the pressure head (1); an air inlet hole (5) is opened inside the pressure head (1), and the side end of the air inlet hole (5) is connected to the air inlet pipe (2); a guide positioning (3) is fixedly connected to the top end of the pressure head (1); a piston rod (6) is slidably connected inside the guide positioning (3); a wedge block (4) is slidably connected inside the guide positioning (3); and the piston rod (6) is slidably connected to the inner side wall of the wedge block (4).

2. The automotive bushing positioning device according to claim 1, characterized in that, A first reset ring (7) is fixedly connected inside the guide positioning (3); a second reset ring (8) is fixedly connected below the first reset ring (7) inside the guide positioning (3); the first reset ring (7) and the second reset ring (8) are located on the wedge block (4).

3. The automotive bushing positioning device according to claim 1, characterized in that, A return spring (10) is fixedly connected inside the pressure head (1); the bottom end of the return spring (10) is connected to the piston rod (6).

4. The automotive bushing positioning device according to claim 1, characterized in that, A sealing ring (9) is fixedly connected inside the piston rod (6); the sealing ring (9) is located between the pressure head (1) and the piston rod (6).

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