Ring pushing tool for producing air spring

Abstract

The utility model discloses a ring pushing tool for producing an air spring, which comprises a first end part mounting mechanism and a second end part mounting mechanism similar to the first end part mounting mechanism, the first end mounting mechanism comprises a first base plate, a first core column fixed to the first base plate, a plurality of first clamping pieces distributed on the peripheral face of the core column and moving in the radial direction of the first core column, and a first pressing ring arranged on the outer sides of all the first clamping pieces in a sleeving mode. The first clamping pieces are gathered towards the first core column to form a complete and continuous ring shape arranged on the first core column in a sleeving mode, and the attaching faces of the first pressing ring and all the first clamping pieces are wedge-shaped faces. The first end installation mechanism and the second end installation mechanism are used for clamping and sealing the two ends of the bag skin, the bag skin is inflated, the bag skin is made to freely expand, the metal supporting ring installed in the bag skin in advance can conveniently move in the bag skin, meanwhile, friction damage is avoided in the installation process, and the percent of pass of the pushing ring is increased.

Description

Technical Field

[0001] The utility model belongs to the field of air spring accessories, and particularly relates to a pushing ring tooling for producing air springs. Background Technique

[0002] During the production process of air springs, a metal support ring with an outer diameter larger than the inner diameter of the bladder needs to be installed inside the cylindrical bladder. Due to different bladder materials, the hardness of the bladder is also different. Currently, a cylindrical expansion airbag is used to expand the bladder, and then a ring-shaped tooling is used to bite the upper and lower ends of the bladder. Then, a cylinder is used to push the metal support ring into the bladder. For the current technology, since the upper and lower ends are bitten by the ring-shaped tooling after expansion, the inner cord fabric at both ends of the bladder may be damaged. Due to different expansion sizes of the bladder, stretching will also cause distortion. After the expansion airbag contracts, the position of the pushing ring will also change, and the qualified rate is relatively low. Summary of the Invention

[0003] The purpose of the utility model is to provide a pushing ring tooling for producing air springs, which has a low cost and is suitable for the early development and sample trial production stage. It will not cause damage to the inner cord fabric of the bladder during the flaring process, allows the bladder to expand freely through inflation, facilitates the movement of the metal support ring inside the bladder, and at the same time, there is no friction damage during the installation process, improving the qualified rate of the pushing ring.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: A pushing ring tooling for producing air springs, which includes:

[0005] The first end installation mechanism, which includes a first chassis, a first core column fixed on the first chassis, multiple first clamping pieces distributed on the outer peripheral surface of the core column and moving radially along the first core column, and a first pressing ring sleeved outside all the first clamping pieces. After the first clamping pieces gather towards the first core column, they form a complete continuous ring sleeved on the first core column. The mating surface between the first pressing ring and all the first clamping pieces is a wedge surface. When the first pressing ring moves towards the first chassis direction, the first pressing ring makes the first core column gather and form a complete continuous ring;

[0006] The second end installation mechanism, which includes a limit support ring, a second chassis, a second core column fixed on the second chassis, multiple second clamping pieces distributed on the outer peripheral surface of the core column and moving radially along the second core column, and a second pressing ring sleeved outside all the second clamping pieces. After the second clamping pieces gather towards the second core column, they form a complete continuous ring sleeved on the second core column. The mating surface between the second pressing ring and all the second clamping pieces is a wedge surface. When the second pressing ring moves towards the second chassis direction, the second pressing ring makes the second core column gather and form a complete continuous ring;

[0007] The inflatable link is connected to the first chassis. A through airway is provided in the inflatable link, the first chassis and the first core column. One end of the airway is on the inflatable link and the other end is on the first core column. Alternatively, the inflatable link is connected to the second chassis. A through airway is provided in the inflatable link, the second chassis and the second core column. One end of the airway is on the inflatable link and the other end is on the second core column;

[0008] The upper end of the bladder of the air spring is sleeved on the first core column. The first pressing ring moves towards the first chassis and gathers the first clamping pieces, so that the upper end of the bladder is clamped between the first core column and the first clamping pieces. The first pressing ring and the first chassis are fixed by bolts. The lower end of the bladder of the air spring is sleeved on the second core column. The second pressing ring moves towards the second chassis and gathers the second clamping pieces, so that the upper end of the bladder is clamped between the second core column and the second clamping pieces. The second pressing ring and the second chassis are fixed by bolts;

[0009] The other end of the airway is located on the part of the second core column or the first core column covered by the bladder;

[0010] When the bladder is installed between the first end mounting mechanism and the second end mounting mechanism, the limit support ring is sleeved on the bladder and is located above the second clamping piece.

[0011] In another embodiment, the first end mounting mechanism includes a first guide rod passing through the first chassis and the first pressing ring and slidably connecting the first chassis and the first pressing ring. There are several first guide rods, which are arranged parallel to the axis of the first core column, and the first guide rods are distributed on the outer periphery of the first core column.

[0012] In another embodiment, the first pressing ring and the first chassis are fixed by bolts.

[0013] In another embodiment, the second end mounting mechanism includes a second guide rod passing through the second chassis and the second pressing ring and slidably connecting the second chassis and the second pressing ring. There are several second guide rods, which are arranged parallel to the axis of the second core column, and the second guide rods are distributed on the outer periphery of the second core column.

[0014] In another embodiment, the second pressing ring and the second chassis are fixed by bolts.

[0015] The beneficial effects of the present utility model are as follows: The present utility model uses the first end mounting mechanism and the second end mounting mechanism to clamp and seal the two ends of the bladder, and inflate the bladder to make the bladder expand freely, which is convenient for the metal support ring pre-installed in the bladder to move in the bladder. At the same time, there is no friction damage during the installation process, and the qualification rate of the push ring is improved. Description of the Drawings

[0016] Figure 1 This is the front view of the present utility model;

[0017] Figure 2 This is the perspective view of the present utility model;

[0018] Figure 3 This is the perspective view of the metal support ring;

[0019] Figure 4 This is the perspective view of the air spring bladder;

[0020] Figure 5 This is the perspective view when the second end mounting mechanism is not clamped;

[0021] Figure 6 This is the perspective view when the second end mounting mechanism is clamped;

[0022] Figure 7 This is the perspective view when the first end mounting mechanism is not clamped. Detailed implementation manners

[0023] The following provides a detailed description of the present utility model in conjunction with the embodiments shown in the drawings:

[0024] As Figure 1 , 2 shown, the push ring tooling for manufacturing an air spring includes a first end mounting mechanism 1, a second end mounting mechanism 2, and an inflation connecting rod 4.

[0025] Specifically, as Figure 7 shown, the first end mounting mechanism 1 includes a first chassis 11, a first core column 12 fixed on the first chassis 11, multiple first clamping pieces 13 distributed on the outer peripheral surface of the core column and moving radially along the first core column 12, a first pressing ring 14 sleeved outside all the first clamping pieces 13, and a first guiding rod 15 passing through the first chassis and the first pressing ring 14 and enabling the first chassis and the first pressing ring 14 to be slidably connected. There are several first guiding rods 15, which are arranged parallel to the axis of the first core column 12 and distributed on the outer periphery of the first core column 12. The first pressing ring 14 and the first chassis 11 are fixed by bolts 3. After the first clamping pieces 13 gather towards the first core column 12, they form a complete continuous ring sleeved on the first core column 12. The joint surface between the first pressing ring 14 and all the first clamping pieces 13 is a wedge surface. When the bolts 3 on the first pressing ring 14 are tightened and the first pressing ring 14 moves towards the first chassis 11, the first pressing ring 14 causes the first core column 12 to gather and form a complete continuous ring;

[0026] As Figure 5 , 6As shown, the second end mounting mechanism 2 includes a limit support ring 26, a second chassis 21, a second core column 22 fixed to the second chassis 21, multiple second clamping pieces 23 distributed on the outer peripheral surface of the core column and moving radially along the second core column 22, a second pressure ring 24 sleeved outside all the second clamping pieces 23, and second guide rods 25 passing through the second chassis 21 and the second pressure ring 24 and slidably connecting the second chassis 21 and the second pressure ring 24. There are several second guide rods 25 arranged parallel to the axis of the second core column 22, and the second guide rods 25 are distributed on the outer periphery of the second core column 22. The second pressure ring 24 and the second chassis 21 are fixed by bolts 3. After the second clamping pieces 23 gather towards the second core column 22, they form a complete continuous ring sleeved on the second core column 22. The mating surface between the second pressure ring 24 and all the second clamping pieces 23 is a wedge surface A. When the bolts 3 on the second pressure ring 24 are tightened and the second pressure ring 24 moves towards the second chassis 21, the second pressure ring 24 causes the second core column 22 to gather and form a complete continuous ring;

[0027] The inflatable link 4 is connected to the first chassis 11. A through airway 41 is provided in the inflatable link 4, the first chassis 11 and the first core column 12. One end of the airway 41 is on the inflatable link 4 and the other end is on the first core column 12. Or the inflatable link 4 is connected to the second chassis 21. A through airway 41 is provided in the inflatable link 4, the second chassis 21 and the second core column 22. One end of the airway 41 is on the inflatable link 4 and the other end is on the second core column 22. The other end of the airway 41 is located on the part of the second core column 22 or the first core column 12 covered by the bladder 5. In this embodiment, the inflatable link 4 is connected to the second chassis 21, and a fixed link 7 is connected to the first chassis 11.

[0028] The upper end of the bladder 5 of the air spring is sleeved on the first core column 12. The first pressure ring 14 moves towards the first chassis 11 and gathers the first clamping pieces 13, so that the upper end of the bladder 5 is clamped between the first core column 12 and the first clamping pieces 13. The first pressure ring 14 and the first chassis 11 are fixed by bolts 3. The lower end of the bladder 5 of the air spring is sleeved on the second core column 22. The second pressure ring 24 moves towards the first chassis 11 and gathers the second clamping pieces 23, so that the upper end of the bladder 5 is clamped between the second core column 22 and the second clamping pieces 23. The second pressure ring 24 and the second chassis 21 are fixed by bolts 3;

[0029] When the bladder 5 is installed between the first end mounting mechanism 1 and the second end mounting mechanism 2, the limit support ring 26 is sleeved on the bladder 5 and located above the second clamping piece 23. The two end parts of the bladder 5 are clamped and sealed by the first end mounting mechanism 1 and the second end mounting mechanism 2. Subsequently, the press fixes the completed first end mounting mechanism 1, second end mounting mechanism 2 and bladder 5 through the fixed connecting rod 7 and the inflation connecting rod 4, and inflates the bladder 5 to make the bladder 5 freely expand to the set position. At the same time, the servo press drive mechanism drives the first end mounting mechanism 1 to move downward to the set position. The metal support ring 6 will move inside the bladder 5 and fall on the inner bottom of the bladder 5 above the limit support ring 26, that is, at the set position. The gas in the bladder 5 is emptied through the air duct, so that the bladder 5 is restored and the installation of the metal support ring 6 is completed.

[0030] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly. It should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A push ring tool for producing air springs, characterized in that: It includes: A first end mounting mechanism, comprising a first chassis, a first core column fixed on the first chassis, a plurality of first clamping sheets distributed on the outer circumference of the core column and moving in the radial direction of the first core column, and a first pressure ring sleeved on the outside of all the first clamping sheets, wherein the first clamping sheets gather toward the first core column to form a complete and continuous ring sleeved on the first core column, and the fitting surfaces of the first pressure ring and all the first clamping sheets are wedge-shaped surfaces, and when the first pressure ring moves toward the first chassis, the first pressure ring gathers the first core column and forms a complete and continuous ring; A second end mounting mechanism, which includes a limiting support ring, a second chassis, a second core column fixed on the second chassis, a plurality of second clamping sheets distributed on the outer circumference of the core column and moving along the radial direction of the second core column, and a second pressure ring sleeved on the outside of all the second clamping sheets, the second clamping sheets gather toward the second core column to form a complete and continuous ring sleeved on the second core column, the fitting surfaces of the second pressure ring and all the second clamping sheets are wedge-shaped surfaces, and when the second pressure ring moves toward the second chassis, the second pressure ring gathers the second core column and forms a complete and continuous ring; The inflatable connecting rod is connected to the first chassis, and a through air passage is provided in the inflatable connecting rod, the first chassis and the first core column, one end of the air passage is on the inflatable connecting rod and the other end is on the first core column, or the inflatable connecting rod is connected to the second chassis, and a through air passage is provided in the inflatable connecting rod, the second chassis and the second core column, one end of the air passage is on the inflatable connecting rod and the other end is on the second core column.

2. The push ring tooling for producing air springs according to claim 1, characterized in that: The first end mounting mechanism includes a first guide rod that is penetrated through the first chassis and the first pressure ring and slidingly connected to the first chassis and the first pressure ring. There are a plurality of first guide rods that are arranged parallel to the axis of the first core column, and the first guide rods are distributed on the outer periphery of the first core column.

3. The push ring tooling for producing air springs according to claim 2, characterized in that: The first pressure ring and the first chassis are fixed by bolts.

4. The push ring tooling for producing air springs according to claim 1, characterized in that: The second end mounting mechanism includes a second guide rod that is penetrated through the second chassis and the second pressure ring and slidingly connected to the second chassis and the second pressure ring. There are a plurality of second guide rods that are arranged parallel to the axis of the second core column, and the second guide rods are distributed on the outer periphery of the second core column.

5. The push ring tooling for producing air springs according to claim 4, characterized in that: The second pressure ring and the second chassis are fixed by bolts.

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