Universal profile tolerance testing fixture for gear milling products

By designing a universal profile inspection fixture for milled gear products that includes a frame, a detection reference plate, a linear guide rail, and a rotary platform, the problem of multi-end face inspection of milled gear products in the prior art has been solved, achieving efficient and accurate multi-end face inspection and simple clamping and positioning.

CN224285770UActive Publication Date: 2026-05-26CHONGQING DINGXI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING DINGXI IND CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing milling tooling fixtures are difficult to use for efficient and accurate multi-face inspection, and are also difficult to manufacture and clamp, especially when used on large equipment where positioning accuracy is hard to guarantee.

Method used

A universal profile inspection fixture was designed, comprising a frame, a test reference plate, linear guide rails, a sliding platform, and a rotating platform. By combining the sliding and rotating platforms, multi-face inspection can be achieved. Casters and universal ball bearings are used to improve positioning and mobility.

Benefits of technology

It enables simple clamping and positioning of milled gear products of various specifications and multi-directional contour detection, reducing manufacturing difficulty and improving detection efficiency and accuracy.

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Abstract

The utility model discloses a general profile tolerance testing fixture for gear milling products, which is characterized in that the general profile tolerance testing fixture comprises a rack, a vertically arranged detection reference plate is arranged on the rack, a profile detection plate is arranged on the vertical side surface of the detection reference plate, and a linear guide rail is horizontally arranged on the rack. A linear guide rail is arranged on the detection datum plate, a sliding platform is arranged on the linear guide rail through a sliding block in a sliding mode, the linear guide rail is perpendicular to the detection datum plate, the center of the top of the sliding platform is rotationally connected with a rotating platform through a rotating shaft, and the top face of the rotating platform is a plane and is perpendicular to the detection face of the contour detection plate. The device has the beneficial effects that the structure is simple, the manufacturing difficulty is low, the device can be suitable for detecting the profile tolerance of gear milling products of various specifications, the product is simple to clamp and position, and the profile tolerance of the end surface can be detected by rotating in different directions.
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Description

Technical Field

[0001] This utility model relates to the field of inspection tools, specifically to a general profile inspection tool for milled gear products. Background Technology

[0002] Milled gear products such as communication device housings typically require contour inspection after milling to ensure assembly accuracy. Since multiple end faces of the product need to be inspected, existing fixtures are designed for a single product, with one inspection plate for each inspection end face. However, when using such fixtures for large equipment, hoisting and installation are required, which makes clamping inconvenient and makes it difficult to guarantee positioning accuracy. Such fixtures are difficult to manufacture and have low inspection efficiency. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this utility model provides a universal profile gauge for milled gear products, which has a simple structure, is easy to clamp and position, and is convenient for inspection.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A general-purpose profile inspection tool for milled gear products, characterized in that: it includes a frame, on which a vertically arranged inspection reference plate is provided, and a profile inspection plate is provided on the vertical side of the inspection reference plate. A linear guide rail is horizontally arranged on the frame, and a sliding platform is slidably arranged on the linear guide rail via a slider. The linear guide rail is perpendicular to the inspection reference plate. A rotating platform is rotatably connected to the top center of the sliding platform via a rotating shaft. The top surface of the rotating platform is a plane and is perpendicular to the inspection surface of the profile inspection plate.

[0006] Furthermore, casters are provided at the four corners of the bottom of the frame.

[0007] Furthermore, the frame is provided with baffles corresponding to both ends of the linear guide rail, and the sliding platform is provided with a buffer directly opposite the baffles.

[0008] Furthermore, the sliding platform is provided with multiple universal ball bearings that support the rotating platform.

[0009] The advantages of this utility model include: simple structure, low manufacturing difficulty, applicability to the profile inspection of milled gear products of various specifications, simple product clamping and positioning, and profile inspection by rotating the end face in different directions. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0011] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0012] One such Figure 1 The universal profile inspection fixture for milled gear products shown includes a frame 1, on which a vertically arranged inspection reference plate 2 is mounted. A profile inspection plate 3 is mounted on the vertical side of the inspection reference plate 2. Two linear guide rails 4 are horizontally arranged on the frame 1, and a sliding platform 5 is slidably mounted on the two linear guide rails 4 via a slider. The linear guide rails 4 are perpendicular to the inspection reference plate 2. A rotating platform 7 is rotatably connected to the top center of the sliding platform 5 via a rotating shaft 6. The top surface of the rotating platform 7 is flat and used to place the milled gear product. The top surface of the rotating platform 7 is perpendicular to the inspection surface of the profile inspection plate 3. During inspection, the milled gear product is hoisted and placed on the top surface of the rotating platform 7. Then, the rotating platform is rotated so that the end face of the milled gear product to be inspected is directly facing the profile inspection plate 3. The sliding platform 5 is then moved so that the end face of the milled gear product to be inspected is close to the profile inspection plate 3. Finally, a feeler gauge is used to check the gap between multiple positions of the milled gear product and the profile inspection plate 3.

[0013] To facilitate the movement of the inspection tool, casters 9 are provided at the four corners of the bottom of the frame 1 in this embodiment.

[0014] The frame 1 is equipped with baffles 8 at both ends of the linear guide rail 4 to limit the travel of the sliding platform. The sliding platform 5 is equipped with a buffer 10 facing the baffles 8 to prevent the sliding platform 5 from rigidly impacting the baffles 8.

[0015] To ensure good support stability of the rotating platform 7, the sliding platform 5 in this embodiment is provided with multiple universal ball bearings 11 to support the rotating platform 7, and the bottom surface of the rotating platform 7 is in contact with the universal ball bearings 11.

[0016] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A general profile gauge for gear milling products, characterized by: The device includes a frame (1), on which a vertically arranged detection reference plate (2) is provided. A contour detection plate (3) is provided on the vertical side of the detection reference plate (2). A linear guide rail (4) is arranged horizontally on the frame (1). A sliding platform (5) is slidably arranged on the linear guide rail (4) via a slider. The linear guide rail (4) is perpendicular to the detection reference plate (2). A rotating platform (7) is rotatably connected to the top center of the sliding platform (5) via a rotating shaft (6). The top surface of the rotating platform (7) is a plane and is perpendicular to the detection surface of the contour detection plate (3).

2. The universal profile inspection tool for milled gear products according to claim 1, characterized in that: The frame (1) is equipped with casters (9) at the four corners of its bottom.

3. The universal profile inspection tool for milled gear products according to claim 1, characterized in that: The frame (1) is provided with baffles (8) corresponding to both ends of the linear guide rail (4), and the sliding platform (5) is provided with a buffer (10) facing the baffles (8).

4. The universal profile inspection tool for milled gear products according to claim 1, characterized in that: The sliding platform (5) is provided with multiple universal ball bearings (11) that support the rotating platform (7).