Vulcanizing capsule chuck for air spring

Abstract

The utility model provides a curing bladder chuck for an air spring. The curing bladder chuck solves the problems that an existing curing bladder chuck is uneven in stress and inconvenient to produce in batches. Comprising a chuck cover plate and a chuck base, a groove is formed in the middle of the chuck base, the outer side wall of the chuck cover plate abuts against the inner wall of the groove, and the bottom face of the chuck cover plate abuts against the bottom face of the groove. A plurality of threaded mounting holes are formed in the bottom face of the groove in the circumferential direction, threaded connecting holes corresponding to the threaded mounting holes are formed in the chuck cover plate, and fixing bolts are arranged in the threaded mounting holes and the corresponding threaded connecting holes. The device is widely applied to the technical field of air spring production.

Description

Technical Field

[0001] The present application relates to the technical field of air spring production, and more specifically, to a vulcanized bladder chuck for an air spring. Background Art

[0002] Air springs are widely used in the automotive, aviation, and machinery manufacturing industries because of their light weight, good vibration isolation and silencing effects for high-frequency excitation, high load-bearing capacity, and nonlinear stiffness. Vulcanization is a key process in the production of air springs. When air springs are vulcanized, a vulcanizing bladder is required as an internal contour support device. During vulcanization, the vulcanizing bladder is fixed by a bladder chuck, and the air spring blastocyst to be vulcanized is inserted into the outside of the vulcanizing bladder. High-pressure steam and high-pressure nitrogen are introduced, and the vulcanizing bladder expands to shape the blastocyst to the size of the mold, thereby obtaining a finished product with the designed specifications and dimensions.

[0003] At present, the vulcanization bladder chuck consists of a chuck base and a chuck cover plate, which are connected by fixing bolts. The fixing bolts are usually set at the edges of the chuck base and the chuck cover plate, so that the edge of the vulcanization bladder is fixed to the edge of the bladder chuck. During the vulcanization process, the elasticity of the rubber deteriorates under high temperature and high pressure, the bladder is deformed greatly at the fastening point, and the force on the edge of the bladder is uneven, which can easily cause the vulcanization bladder to separate from the bladder chuck at the non-fixing bolt fixing point. In addition, the fixing bolts are over-tightened due to the concentrated force, which can easily lead to the fixing bolts breaking and the screw thread damage, which in turn leads to product vulcanization defects.

[0004] In order to solve the existing problems, a Chinese patent with publication number CN219789363U discloses a vulcanizing bladder chuck, which includes a chuck cover and a chuck base. The chuck cover and the chuck base are connected by multiple fixing bolts. The chuck cover is provided with an upper clamping opening, and the chuck base is provided with a lower clamping opening corresponding to the upper clamping opening. A plurality of movable adjustment openings are evenly arranged around the upper clamping opening of the chuck cover, and an adjustment block is fixedly arranged on the upper part of the movable adjustment opening by bolts, and an adjustment bolt is arranged on the adjustment block.

[0005] The above technical solution adjusts the distance between the movable clamp block and the chuck base by adding multiple adjustment bolts, so that the fixing bolts are not over-tightened, and increases the binding force of the capsule chuck on the edge of the vulcanizing bladder by adjusting the bolts, so as to prevent the leakage of the medium and the separation of the vulcanizing bladder from the vulcanizing bladder chuck. However, there are still the following shortcomings: the edge of the capsule chuck is fixed on the edge of the capsule chuck, and the force point of the capsule is still mainly concentrated on the fixing bolts; adding multiple adjustment bolts increases the production cost of the vulcanizing bladder chuck; opening multiple movable adjustment ports weakens the mechanical properties of the chuck cover; installing additional adjustment bolts increases labor costs, which is not suitable for mass production. Utility Model Content

[0006] In order to solve the above existing problems, the technical solution adopted by the utility model is: to provide a vulcanized bladder chuck for air springs, which has uniform bladder force, stable structure and is easy to mass produce, including a chuck cover and a chuck base;

[0007] A groove is opened in the middle of the chuck base, the outer wall of the chuck cover plate abuts against the inner wall of the groove, and the bottom surface of the chuck cover plate abuts against the bottom surface of the groove; a plurality of threaded mounting holes are arranged circumferentially on the bottom surface of the groove, and the chuck cover plate is provided with threaded connection holes corresponding to the threaded mounting holes, and fixing bolts are arranged in the threaded mounting holes and the corresponding threaded connection holes.

[0008] Preferably, the threaded mounting holes are evenly spaced.

[0009] Preferably, the number of threaded mounting holes is at least four.

[0010] Preferably, the outer side wall of the chuck cover plate is provided with a protruding annular edge, and the width of the annular edge corresponds to the thickness of the groove wall of the chuck base.

[0011] Preferably, an upper circular groove opening upward is provided on the top of the groove wall of the chuck base, and a lower circular groove opening downward corresponding to the upper circular groove is provided on the annular edge.

[0012] Preferably, a fixing groove for accommodating the interface of the sealing plate buffer block is provided in the center of the chuck cover plate.

[0013] Preferably, the threaded connection holes are evenly distributed outside the fixing groove.

[0014] Preferably, a liftable center rod is connected to the bottom of the chuck base.

[0015] The beneficial effects of the utility model are as follows: a groove is provided in the middle of the chuck base of the vulcanization bladder chuck, a threaded mounting hole is arranged on the bottom surface of the groove, and a fixing bolt is arranged in the threaded mounting hole, away from the edge of the bladder clamp. Compared with the prior art, it is ensured that during the process of filling the vulcanization bladder with high-pressure gas, the edge of the bladder clamp is clamped to maintain uniform force, thereby avoiding leakage of the medium during the vulcanization process and preventing the vulcanization bladder from being separated from the vulcanization bladder chuck; the vulcanization bladder chuck has a simple structure, can be quickly installed, is easy to operate, saves labor costs, has low production costs, and is convenient for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a cross-sectional view of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 is a cross-sectional view of a chuck cover plate;

[0020] Figure 4 A cross-sectional view of the chuck base.

[0021] Explanation of symbols in the figure: 1. Chuck cover; 2. Chuck base; 3. Groove; 4. Threaded mounting hole; 5. Threaded connection hole; 6. Fixing bolt; 7. Annular edge; 8. Upper circular groove; 9. Lower circular groove; 10. Fixing groove. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] A vulcanized bladder chuck for an air spring provided in an embodiment of the present application is now described.

[0026] See also Figure 1, which is a cross-sectional view of the utility model, a vulcanized capsule chuck for an air spring, comprising a chuck cover plate 1 and a chuck base 2; a groove 3 is provided in the middle of the chuck base 2, the outer wall of the chuck cover plate 1 abuts against the inner wall of the groove 3, and the bottom surface of the chuck cover plate 1 abuts against the bottom surface of the groove 3; a plurality of threaded mounting holes 4 are circumferentially provided on the bottom surface of the groove 3, and a threaded connection hole 5 corresponding to the threaded mounting hole 4 is provided on the chuck cover plate 1, and a fixing bolt 6 is provided in the threaded mounting hole 4 and the corresponding threaded connection hole 5, and the chuck cover plate 1 and the chuck base 2 are threadedly connected by the fixing bolt 6; the fixing bolt 6 is located in the middle of the chuck cover plate 1, away from the edge of the capsule clamp, so that the fixing bolt 6 is not subjected to concentrated force.

[0027] See also Figure 1 and Figure 2 , the threaded mounting holes 4 are evenly spaced. In one embodiment, the number of the threaded mounting holes 4 is at least four. Further, the number of the threaded mounting holes 4 is four, and they are evenly spaced 90° in the circumferential direction at the bottom of the groove 3, so that the chuck cover plate 1, the chuck base 2 and the vulcanizing bladder are evenly stressed in all directions.

[0028] See also Figure 3 , is a cross-sectional view of the chuck cover plate 1. In one embodiment, the outer wall of the chuck cover plate 1 is provided with a protruding annular edge 7, which is arranged on the portion of the outer wall of the chuck cover plate 1 that is not in contact with the inner wall of the groove 3. The width of the annular edge 7 corresponds to the thickness of the groove wall of the chuck base 2. The annular edge 7 of the clamping cover plate 1 is integrally stressed on the capsule clamping edge, and the fixing bolt 6 is away from the capsule clamping edge, so that the capsule clamping edge is uniformly stressed when clamped.

[0029] See also Figure 3 and Figure 4 Furthermore, an upper circular groove 8 with an opening facing upward is provided on the top of the groove wall of the chuck base 2, and a lower circular groove 9 with an opening facing downward corresponding to the upper circular groove 8 is provided on the annular edge 7, which is used to release stress when the vulcanization bladder clamp edge and the vulcanization bladder chuck are subjected to force during pressing, so as to prevent the edge of the bladder clamp edge and the edge of the vulcanization bladder chuck from being deformed due to force.

[0030] See also Figure 3 In one embodiment, a fixing groove 10 for accommodating the interface of the sealing plate buffer block is provided at the center of the chuck cover plate 1. The size and depth of the fixing groove 10 are adjusted according to the size and height of the interface of the sealing plate buffer block, so that during vulcanization, the vulcanization bladder skin and the sealing plate can be directly vulcanized together.

[0031] See also Figure 2 Furthermore, the threaded connection holes 5 are evenly distributed outside the fixing groove 10.

[0032] A liftable center rod is connected to the bottom of the chuck base 2 to control the height of the vulcanizing bladder.

[0033] The vulcanization bladder chuck for an air spring provided in this embodiment, when in use, only requires the staff to place the vulcanization bladder on the vulcanization bladder chuck and tighten the fixing bolts 6, so that the vulcanization bladder can be quickly installed, effectively simplifying the installation steps and shortening the installation time of the vulcanization bladder, thereby improving production efficiency.

[0034] In the utility model, a groove 3 is provided in the middle of the chuck base 2 of the vulcanization capsule chuck, a threaded mounting hole 4 is arranged on the bottom surface of the groove 3, and a fixing bolt 6 is arranged in the threaded mounting hole 4, away from the edge of the capsule clamp. Compared with the prior art, it is ensured that during the process of filling the vulcanization capsule with high-pressure gas, the edge of the capsule clamp is clamped to maintain uniform force, thereby avoiding leakage of the medium during the vulcanization process and preventing the vulcanization capsule from being separated from the vulcanization capsule chuck; the vulcanization capsule chuck has a simple structure, can be quickly installed, is easy to operate, saves labor costs, has low production costs, and is convenient for mass production.

[0035] The above-mentioned specific implementation methods do not cover the entire protection scope of the utility model. Modifications or equivalent replacements of the utility model should all fall within the patent coverage requirements of the utility model. In the utility model, the above-mentioned embodiments are only used to illustrate the technical solution of the present application, rather than to limit it; although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above-mentioned embodiments, or replace some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A vulcanizing bladder chuck for an air spring, comprising a chuck cover plate (1) and a chuck base (2); characterized in that: A groove (3) is provided in the middle of the chuck base (2), the outer wall of the chuck cover (1) abuts against the inner wall of the groove (3), and the bottom surface of the chuck cover (1) abuts against the bottom surface of the groove (3); a plurality of threaded mounting holes (4) are circumferentially provided on the bottom surface of the groove (3), and threaded connection holes (5) corresponding to the threaded mounting holes (4) are provided on the chuck cover (1), and fixing bolts (6) are provided in the threaded mounting holes (4) and the corresponding threaded connection holes (5).

2. A vulcanizing bladder chuck for an air spring as claimed in claim 1, characterized in that: The threaded mounting holes (4) are evenly spaced.

3. A vulcanized bladder chuck for an air spring as claimed in claim 2, characterized in that: The number of the threaded mounting holes (4) is at least four.

4. A vulcanized bladder chuck for an air spring as claimed in claim 1, characterized in that: The outer side wall of the chuck cover plate (1) is provided with a protruding annular edge (7), and the width of the annular edge (7) corresponds to the thickness of the groove wall of the chuck base (2).

5. A vulcanizing bladder chuck for an air spring as claimed in claim 4, characterized in that: An upper circular groove (8) opening upward is provided at the top of the groove wall of the chuck base (2), and a lower circular groove (9) opening downward corresponding to the upper circular groove (8) is provided on the annular edge (7).

6. A vulcanizing bladder chuck for an air spring as claimed in claim 1, characterized in that: The center of the chuck cover plate (1) is provided with a fixing groove (10) for accommodating an interface of a sealing plate buffer block.

7. A vulcanizing bladder chuck for an air spring as claimed in claim 6, characterized in that: The threaded connection holes (5) are evenly distributed outside the fixing groove (10).

8. The vulcanizing bladder chuck for air spring according to claim 1, characterized in that: The bottom of the chuck base (2) is connected to a liftable center rod.

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