Double-conical-surface friction ring curing clamp

Abstract

The utility model discloses a double-conical-surface friction ring curing clamp, and belongs to the technical field of synchronizer friction ring production. A base is included; a cover plate is mounted on the top surface of the base; a retainer plate is arranged in an inner cavity of the base; the retainer plate is located at the bottom of an inner cavity of the base, and an outer cone is installed on the top face of the retainer plate. The outer wall of the outer cone is sleeved with a to-be-machined double-conical-surface friction ring part. The outer wall of the part is attached to the inner wall of the base, and the inner wall of the part is attached to the outer wall of the outer cone. The size of the friction ring base body adhered with the carbon cloth and the adhesive film is sized by the aid of the conical surface of the clamp, then the friction ring base body is pressed by the cover plate for limiting, the adhesive solution and the carbon cloth are cured by the aid of heat transfer and temperature rising parts of the clamp, and finally, the two-sided carbon cloth of the friction ring base body is tightly combined under the controllable size. The inner and outer surfaces of the double-conical-surface friction ring can be heated, compressed and cured at the same time, so that the requirement for the number of clamps is greatly reduced, the machining efficiency is improved, and the curing quality of the friction ring is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of synchronizer friction ring production and relates to a double-cone friction ring curing fixture. Background Art

[0002] The synchronizer friction ring is a key component of the synchronizer. When shifting is required, the synchronizer friction ring, driven by the shift fork, gradually presses against the engaging cone surface of the synchronized gear. Once the two cone surfaces come into contact, friction torque will be generated, and the synchronized gear will begin to slow down or accelerate. As the shift force continues to act, the friction torque of the two cone surfaces continues to increase. When the friction torque is equal to the inertia torque of the input end, that is, the angular velocity of the two connected ends is the same, the inertia torque disappears, that is, the friction torque is zero, and synchronous meshing is achieved. Synchronizers are widely used in various mechanical equipment, such as automotive transmissions, construction machinery, wind turbines, etc. Through friction synchronization or gear synchronization, synchronizers can achieve synchronous movement of transmission components, thereby ensuring the smoothness and reliability of transmission.

[0003] Among them, in the manufacturing process of synchronizer, the quality and performance of friction ring directly affect the overall performance of synchronizer. Friction ring curing is one of the key steps to ensure that friction ring has excellent performance. Curing treatment is a key step in the manufacturing process of friction ring, and its purpose is to improve the hardness and wear resistance of friction ring while ensuring the stability of friction coefficient. Curing treatment can be carried out by heat treatment (such as quenching, tempering, etc.), chemical treatment (such as carburizing, nitriding, etc.) or physical treatment (such as laser surface treatment, ion implantation, etc.).

[0004] As an important carrier for the curing of friction rings, the structure of the curing fixture directly affects the production efficiency of friction rings. At present, the fixtures used in the curing process of double-cone friction rings in the industry mainly include manual press-fitting and automatic press-fitting. However, both are single-sided press-fitting, which requires a large number of fixtures and restricts the improvement of processing efficiency and processing quality. Utility Model Content

[0005] The utility model aims to solve the technical problem that the fixtures used in the curing process of the double-cone friction ring in the prior art are all single-sided press-fitted and have low production efficiency, and provides a double-cone friction ring curing fixture.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a double-cone friction ring curing fixture, comprising a base;

[0008] A cover plate is installed on the top surface of the base; a support plate is arranged in the inner cavity of the base; the support plate is located at the bottom of the inner cavity of the base, and an outer cone is installed on the top surface of the support plate; a space for clamping the double-cone friction ring part to be processed is formed between the outer cone and the inner wall of the base;

[0009] When in use, the outer wall of the part fits with the inner wall of the base, and the inner wall of the part fits with the outer wall of the outer cone.

[0010] Furthermore, a supporting bolt is provided in the middle of the supporting plate.

[0011] Furthermore, a support gasket is circumferentially arranged on the support bolt; the support gasket is located between the outer cone and the supporting plate.

[0012] Furthermore, the supporting bolt sleeve is provided with a second spring.

[0013] Furthermore, a groove is provided on the contact surface between the cover plate and the component.

[0014] Furthermore, a guide bolt is installed on the outer cone; the guide bolt passes through the supporting plate and is connected to the base.

[0015] Furthermore, the guide bolt sleeve is provided with a first spring.

[0016] Furthermore, the base is connected to a lower working plate of the press via a first screw.

[0017] Furthermore, a gasket is arranged around the first screw.

[0018] Furthermore, the cover plate is connected to the upper working plate of the press by a second screw.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model discloses a double-cone friction ring curing fixture, which adopts the fixture main body base and outer cone as the main shaping parts of the fixture, which are respectively in contact with the inner and outer cone surfaces of the double-cone friction ring parts to be processed, the base shapes the outer cone surface of the parts, and the outer cone shapes the inner cone surface of the parts; in the curing process of the friction ring, the friction ring base body with carbon cloth and adhesive film is first sized by the fixture cone surface, and then the cover plate is pressed to limit the position, and the parts are heated by the fixture to achieve the curing of the adhesive and carbon cloth, and finally the double-sided carbon cloth of the friction ring base body is tightly combined under controllable size. The utility model can achieve simultaneous heating, compression and curing of the inner and outer surfaces of the double-cone friction ring, which greatly reduces the number of fixtures required, improves processing efficiency, and greatly improves the curing quality of the friction ring.

[0021] Furthermore, the contact surface between the cover plate and the part of the utility model is provided with a groove, which can prevent the carbon cloth from remaining too long and the glue from overflowing and solidifying, causing the part to be raised and affecting the dimensional accuracy after mold closing. This grooving process improves the stability of part processing.

[0022] Furthermore, the utility model is provided with a support bolt, a support gasket and a second spring which together constitute a support mechanism, thereby ensuring that when the outer cone preheats the inner cone of the part, it will not fall by its own weight, causing premature compression of the carbon cloth on the inner cone surface of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is the front view of the fixture of the utility model;

[0025] Figure 2 It is a cross-sectional view of the clamp of the utility model.

[0026] Among them: 1-base; 2-gasket; 3-first screw; 4-second screw; 5-cover plate; 6-support plate; 7-guide bolt; 8-first spring; 9-outer cone; 10-support bolt; 11-support gasket; 12-parts; 13-second spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The utility model is further described in detail below with reference to the accompanying drawings:

[0034] See also Figure 1 and Figure 2The embodiment of the utility model discloses a double-cone friction ring curing fixture, comprising a base 1; when in use, a cover plate 5 is installed on the top surface of the base 1; a supporting plate 6 is arranged in the inner cavity of the base 1; the supporting plate 6 is located at the bottom of the inner cavity of the base 1, and an outer cone 9 is installed on the top surface of the supporting plate 6; a space for clamping a double-cone friction ring part 12 to be processed is formed between the outer cone 9 and the inner wall of the base 1; the outer wall of the outer cone 9 can be sleeved with the double-cone friction ring part 12 to be processed; the outer wall of the part 12 is in contact with the inner wall of the base 1, and the inner wall of the part 12 is in contact with the outer wall of the outer cone 9. The utility model adopts the fixture main body base 1 and the outer cone 9 as the main shaping parts of the fixture, which are respectively in contact with the inner and outer cones of the double-cone friction ring part 12 to be processed, the base 1 shapes the outer cone of the part 12, and the outer cone 9 shapes the inner cone of the part 12; in the curing process of the friction ring, the friction ring base body with carbon cloth and adhesive film is first sized by the fixture cone surface, and then the cover plate 5 is pressed to limit the position, and the parts are heated by the fixture to achieve the curing of the adhesive and carbon cloth, and finally the double-sided carbon cloth of the friction ring base body is tightly combined under controllable size. The utility model can achieve simultaneous heating, compression and curing of the inner and outer surfaces of the double-cone friction ring, which greatly reduces the number of fixtures required, improves processing efficiency, and greatly improves the curing quality of the friction ring.

[0035] In a feasible implementation of the utility model, a support bolt 10 is provided in the middle of the support plate. The support bolt 10 is provided with a support gasket 11 in the circumferential direction; the support gasket 11 is located between the outer cone 9 and the support plate 6. A second spring 13 is also sleeved outside the support bolt 10. The support bolt 10, the support gasket 11 and the second spring 13 of the utility model together constitute a support mechanism, ensuring that when the outer cone 9 preheats the inner cone of the part 12, it will not fall by its own weight, causing the carbon cloth on the inner cone surface of the part 12 to be compressed prematurely.

[0036] In a feasible embodiment of the present invention, a groove is provided on the contact surface between the cover plate 5 and the part 12. The purpose of the groove treatment at the contact between the cover plate 5 and the large end cone of the part 12 of the present invention is to prevent the carbon cloth from remaining too long and the glue from overflowing and solidifying, causing the part 12 to be raised, affecting the dimensional accuracy and stability after mold closing.

[0037] In a feasible implementation of the utility model, a guide bolt 7 is also installed on the outer cone 9; the guide bolt 7 passes through the supporting plate 6 and is connected to the base 1. A first spring 8 is provided on the outer sleeve of the guide bolt 7. The supporting plate 6, the first spring 8 and the guide bolt 7 of the utility model together constitute a stripping mechanism, the main purpose of which is to ensure that the part 12 is lifted up and lifted out during demoulding.

[0038] In a feasible embodiment of the utility model, the base 1 is connected to the lower working plate of the press by a first screw 3. The first screw 3 is circumferentially provided with a gasket 2. The cover plate 5 is connected to the upper working plate of the press by a second screw 4. The first screw 3 and the second screw 4 respectively fasten the fixture body base 1 and the cover plate 5 to the upper and lower working plates of the press.

[0039] The working process of the utility model is as follows:

[0040] 1. Loading process: The large end of the part 12 is placed on the inner cone surface of the fixture body base 1 with the large end facing upward; the outer cone 9 is placed on the inner cone of the part 12; the support gasket 11 supports the outer cone 9 to be higher than the large end surface of the part 12; the fixture cover plate 5 is pressed down by the press until the mold is closed (the fixture body base 1, the outer cone 9 and the cover plate 5 are completely pressed and fitted)

[0041] 2. Unloading process: The fixture cover plate 5 moves upward under the action of the press, the second spring 13 and the supporting gasket 11 rebound along the supporting bolt 10, and the outer cone 9 is removed from the part 12; the first spring 8 rebounds along the guide bolt 7, so that the supporting plate 6 removes the part 12 from the conical surface of the fixture main body base 1, and the outer cone 9 and the part 12 are taken out.

[0042] During the curing process of the friction ring, the utility model relies on the fixture cone to size the friction ring base body with carbon cloth and adhesive film, limits the position by pressing and holding the end face, and then heats up the parts through the fixture to achieve the curing of the adhesive and carbon cloth, and finally achieves the close combination of the carbon cloth on both sides of the friction ring base body under controllable size. Under the premise of meeting the current automation requirements, the inner and outer surfaces of the double-conical friction ring are heated, compressed and cured at the same time, achieving ① a doubling of processing efficiency; ② a significant reduction in the number of fixtures required; ③ a significant improvement in the curing quality of the double-conical friction ring; and thus beneficial to improving the overall performance and service life of the synchronizer.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double-conical friction ring curing fixture, characterized in that: comprising a base (1); A cover plate (5) is installed on the top surface of the base (1); a support plate (6) is arranged in the inner cavity of the base (1); the support plate (6) is located at the bottom of the inner cavity of the base (1), and an outer cone (9) is installed on the top surface of the support plate (6); a space for clamping a double-cone friction ring part (12) to be processed is formed between the outer cone (9) and the inner wall of the base (1); When in use, the outer wall of the part (12) fits with the inner wall of the base (1), and the inner wall of the part (12) fits with the outer wall of the outer cone (9).

2. A double-conical friction ring curing fixture according to claim 1, characterized in that: A supporting bolt (10) is provided in the middle of the supporting plate (6).

3. A double-conical friction ring curing fixture according to claim 2, characterized in that: The support bolt (10) is provided with a support gasket (11) in the circumferential direction; the support gasket (11) is located between the outer cone (9) and the support plate (6).

4. A double-conical friction ring curing fixture according to claim 2, characterized in that: The outer sleeve of the supporting bolt (10) is provided with a second spring (13).

5. The double-cone friction ring curing fixture according to claim 1, characterized in that: A groove is provided on the contact surface between the cover plate (5) and the part (12).

6. The double-cone friction ring curing fixture according to claim 1, characterized in that: A guide bolt (7) is also mounted on the outer cone (9); the guide bolt (7) passes through the support plate (6) and is connected to the base (1).

7. A double-conical friction ring curing fixture according to claim 6, characterized in that: The outer sleeve of the guide bolt (7) is provided with a first spring (8).

8. The double-cone friction ring curing fixture according to claim 1, characterized in that: The base (1) is connected to a lower working plate of the press via a first screw (3).

9. The double-cone friction ring curing fixture according to claim 8, characterized in that: A gasket (2) is arranged circumferentially around the first screw (3).

10. The double-cone friction ring curing fixture according to claim 1, characterized in that: The cover plate (5) is connected to the upper working plate of the press via a second screw (4).

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