Gear shaft fork tooth end chamfering positioning device

By designing a chamfering positioning device for the gear shaft fork, and adopting a combined positioning method of upper positioning component, lower positioning component and support component, the problem of unstable positioning during the chamfering process of the gear shaft fork is solved, and stable chamfering of long gear shaft forks is achieved.

CN223762856UActive Publication Date: 2026-01-06UNITED DEVILLE HANGZHOU MACHINERY
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Patent Information

Application Number
CN202520066075.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-06
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

The existing gear shaft fork has unstable positioning during chamfering, especially for longer gear shaft forks, which affects the chamfering quality.

Method used

A gear shaft fork tooth end chamfering positioning device was designed, including an upper positioning component, a lower positioning component, and a support component. The upper positioning component positions the fork and tail of the gear shaft fork respectively, and the support component positions the middle part to ensure stable rotation.

Benefits of technology

Stable positioning of the long gear shaft fork was achieved, ensuring the stability and accuracy of the chamfering process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a gear shaft fork tooth end chamfering positioning device, and belongs to the field of transmission shafts. The chamfering positioning device comprises a machine frame and a grinding wheel used for chamfering the tooth end of the gear shaft fork, the machine frame comprises a base and a vertical plate, the vertical plate is fixed to the base, the chamfering positioning device is structurally characterized by further comprising an upper positioning assembly, a lower positioning assembly and a supporting assembly, the upper positioning assembly and the supporting assembly are both arranged on the vertical plate, and the lower positioning assembly is arranged on the supporting assembly. The upper positioning assembly is arranged on the base, the lower positioning assembly is arranged on the base, the supporting assembly is located between the upper positioning assembly and the lower positioning assembly, the upper positioning assembly is matched with the lower positioning assembly, the upper positioning assembly comprises an upper positioning support, an upper positioning air cylinder, an upper positioning top plate and an upper positioning tip, and the upper positioning support is arranged on a vertical plate; a cylinder barrel of the upper positioning air cylinder is arranged on the upper positioning support, the upper positioning top plate is arranged on a piston rod of the upper positioning air cylinder, and the upper positioning center is arranged on the upper positioning top plate.
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Description

Technical Field

[0001] This utility model relates to a gear shaft fork tooth end chamfering positioning device, belonging to the field of transmission shafts. Background Technology

[0002] After machining, the gear shaft fork needs to be chamfered at the tooth ends to facilitate assembly. Currently, when chamfering the gear shaft fork, the fork part is often supported by the lower center and driven to rotate. The lower part of the gear shaft fork is clamped by a V-shaped clamp. That is to say, both positioning points are at the lower part of the gear shaft fork. Since the length of the gear shaft fork varies, positioning will be unstable when positioning a longer shaft fork, which will affect the chamfering of the tooth ends. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned deficiencies in the existing technology and to provide a gear shaft fork tooth end chamfering positioning device with a reasonable structural design.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: the gear shaft fork tooth end chamfering positioning device includes a frame and a grinding wheel for chamfering the tooth end of the gear shaft fork. The frame includes a base and a vertical plate. The vertical plate is fixed to the base. Its structural feature is that the chamfering positioning device also includes an upper positioning component, a lower positioning component and a support component. The upper positioning component and the support component are both set on the vertical plate. The lower positioning component is set on the base. The support component is located between the upper positioning component and the lower positioning component. The upper positioning component cooperates with the lower positioning component.

[0005] Furthermore, the upper positioning assembly includes an upper positioning bracket, an upper positioning cylinder, an upper positioning top plate, and an upper positioning tip. The upper positioning bracket is mounted on the upright plate, the cylinder barrel of the upper positioning cylinder is mounted on the upper positioning bracket, the upper positioning top plate is mounted on the piston rod of the upper positioning cylinder, and the upper positioning tip is mounted on the upper positioning top plate.

[0006] Furthermore, the lower positioning component includes a lower positioning base, a lower positioning plate, a lower positioning tip, a lower positioning bolt, and a driving mechanism. The driving mechanism is mounted on the base, the lower positioning base is mounted on the driving mechanism, the lower positioning plate and the lower positioning tip are both mounted on the lower positioning base, and the lower positioning bolt is mounted on the lower positioning plate.

[0007] Furthermore, there are two lower positioning bolts, one of which is a fixed lower positioning bolt, and the other is a fine-tuning lower positioning bolt.

[0008] Furthermore, the support assembly includes a support base and a V-shaped frame, the support base being disposed on the upright plate and the V-shaped frame being disposed on the support base.

[0009] Compared with the prior art, the present invention has the following advantages: When the gear shaft fork tooth end chamfering positioning device is used to chamfer the tooth end of the gear shaft fork, the fork part and the tail part of the gear shaft fork can be positioned separately by the upper positioning component and the lower positioning component, and the middle part of the gear shaft fork can be positioned by the support component. That is to say, the positioning device can position both ends of the gear shaft fork, so when chamfering the tooth end of a long gear shaft fork, the gear shaft fork can rotate stably. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the gear shaft fork tooth end chamfering positioning device according to an embodiment of this utility model.

[0011] Figure 2 This is a three-dimensional structural schematic diagram of the gear shaft fork tooth end chamfering positioning device according to an embodiment of this utility model.

[0012] Figure 3 This is a schematic diagram of the gear shaft fork tooth end chamfering positioning device in use according to an embodiment of this utility model.

[0013] Figure 4 This is a front view structural schematic diagram of the gear shaft fork according to an embodiment of the present utility model.

[0014] Figure 5 This is a partial structural schematic diagram of the gear shaft fork according to an embodiment of the present utility model.

[0015] In the diagram: 1. Frame; 2. Upper positioning assembly; 3. Lower positioning assembly; 4. Support assembly; 5. Grinding wheel; 6. Gear shaft fork.

[0016] Base 11, upright plate 12

[0017] Upper positioning bracket 21, upper positioning cylinder 22, upper positioning top plate 23, upper positioning center 24

[0018] Lower positioning base 31, lower positioning plate 32, lower positioning tip 33, lower positioning bolt 34, drive mechanism 35.

[0019] Support base 41, V-shaped frame 42. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0021] Example

[0022] See Figures 1 to 5As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted in this specification are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is solely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0023] The gear shaft fork tooth end chamfering positioning device in this embodiment includes a frame 1, an upper positioning component 2, a lower positioning component 3, a support component 4, and a grinding wheel 5 for chamfering the tooth end of the gear shaft fork 6. The frame 1 includes a base 11 and a vertical plate 12, and the vertical plate 12 is fixed to the base 11.

[0024] In this embodiment, the upper positioning component 2 and the support component 4 are both mounted on the upright plate 12, the lower positioning component 3 is mounted on the base 11, and the support component 4 is located between the upper positioning component 2 and the lower positioning component 3. The upper positioning component 2 and the lower positioning component 3 cooperate with each other.

[0025] The upper positioning component 2 in this embodiment includes an upper positioning bracket 21, an upper positioning cylinder 22, an upper positioning top plate 23, and an upper positioning tip 24. The upper positioning bracket 21 is mounted on the upright plate 12, the cylinder of the upper positioning cylinder 22 is mounted on the upper positioning bracket 21, the upper positioning top plate 23 is mounted on the piston rod of the upper positioning cylinder 22, and the upper positioning tip 24 is mounted on the upper positioning top plate 23.

[0026] The lower positioning component 3 in this embodiment includes a lower positioning base 31, a lower positioning plate 32, a lower positioning tip 33, a lower positioning bolt 34, and a driving mechanism 35. The driving mechanism 35 is disposed on the base 11, the lower positioning base 31 is disposed on the driving mechanism 35, the lower positioning plate 32 and the lower positioning tip 33 are both disposed on the lower positioning base 31, and the lower positioning bolt 34 is disposed on the lower positioning plate 32.

[0027] In this embodiment, there are two lower positioning bolts 34, one of which is a fixed lower positioning bolt and the other is a fine-tuning lower positioning bolt; the support assembly 4 includes a support base 41 and a V-shaped frame 42, the support base 41 is mounted on the upright plate 12, and the V-shaped frame 42 is mounted on the support base 41.

[0028] Specifically, when using the gear shaft fork tooth end chamfering positioning device, the center hole of the fork of the gear shaft fork 6 is aligned with the lower positioning tip 33. The upper positioning cylinder 22 controls the upper positioning top plate 23 to align the upper positioning tip 24 with the center hole of the tail, and the upper positioning cylinder 22 tightens it. The lower positioning bolt 34 is tightened to abut against the fork to fix the gear shaft fork 6. The drive mechanism 35 controls the lower positioning base 31 to rotate, and the lower positioning base 31 drives the gear shaft fork 6 to rotate. While the gear shaft fork 6 is rotating, the grinding wheel 5 chamfers the tooth end of the gear shaft fork 6.

[0029] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A gear shaft fork tooth end chamfer positioning device, comprising a rack (1) and a grinding wheel (5) for chamfering the tooth end of a gear shaft fork (6), the rack (1) comprising a base (11) and a vertical plate (12) fixed with the base (11), characterized in that: The chamfer positioning device further comprises an upper positioning assembly (2), a lower positioning assembly (3) and a supporting assembly (4), the upper positioning assembly (2) and the supporting assembly (4) are arranged on the vertical plate (12), the lower positioning assembly (3) is arranged on the base (11), the supporting assembly (4) is located between the upper positioning assembly (2) and the lower positioning assembly (3), and the upper positioning assembly (2) cooperates with the lower positioning assembly (3).

2. The gear shaft fork tooth end chamfer positioning device of claim 1, wherein: The upper positioning assembly (2) comprises an upper positioning support (21), an upper positioning cylinder (22), an upper positioning top plate (23) and an upper positioning center (24), the upper positioning support (21) is arranged on the vertical plate (12), the cylinder barrel of the upper positioning cylinder (22) is arranged on the upper positioning support (21), the upper positioning top plate (23) is arranged on the piston rod of the upper positioning cylinder (22), and the upper positioning center (24) is arranged on the upper positioning top plate (23).

3. The gear shaft fork tine end chamfer positioning device of claim 1, wherein: The lower positioning assembly (3) comprises a lower positioning base (31), a lower positioning back plate (32), a lower positioning center (33), a lower positioning bolt (34) and a driving mechanism (35), the driving mechanism (35) is arranged on the base (11), the lower positioning base (31) is arranged on the driving mechanism (35), the lower positioning back plate (32) and the lower positioning center (33) are arranged on the lower positioning base (31), and the lower positioning bolt (34) is arranged on the lower positioning back plate (32).

4. The gear shaft fork tine end chamfer positioning device of claim 3, wherein: The number of the lower positioning bolts (34) is two, one of the lower positioning bolts (34) is a fixed lower positioning bolt, and the other lower positioning bolt (34) is a fine adjustment lower positioning bolt.

5. The gear shaft fork tine end chamfer positioning device of claim 1, wherein: The supporting assembly (4) comprises a supporting seat (41) and a V-shaped frame (42), the supporting seat (41) is arranged on the vertical plate (12), and the V-shaped frame (42) is arranged on the supporting seat (41).