Special gauge for height measurement
By designing a special gauge for height measurement and utilizing the elastic force of the internal spring to make the measuring probe contact the top of the retaining spring groove, the problem of time-consuming and labor-intensive retaining spring groove measurement is solved, fast and low-cost measurement is achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202422046948.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing technology for measuring the height of the retaining ring groove of automobile transmission parts is time-consuming and labor-intensive, with high measurement costs and long cycles, resulting in small batches of parts being scrapped and the inability to quickly obtain measurement results.
A special height measurement fixture is designed, which includes a measuring reference, a measuring body, a reference piece, a micrometer and a measuring probe. The elastic force of the internal spring makes the measuring probe contact the top of the retaining ring groove to achieve rapid measurement.
It reduces inspection time and improves production efficiency. Employees can obtain measurement data directly next to the production line, avoiding part scrapping and reducing measurement costs.
Smart Images

Figure CN223412638U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to relevant technical fields such as height measurement of a circlip groove of an automobile transmission component, and in particular to a special inspection tool for height measurement. Background Art
[0002] Currently, when measuring the height of the retaining ring groove of automotive transmission parts, due to its small size, it is usually measured using a three-coordinate measuring machine or a profilometer. The above two methods are time-consuming and labor-intensive, with high measurement costs and long measurement cycles. The measurement personnel cannot quickly obtain measurement results. Sometimes, the measurement personnel cannot adjust the parts while waiting for measurement, which may lead to small batches of parts being scrapped, thereby increasing costs. Utility Model Content
[0003] In view of this, in order to solve the above problems, the purpose of the present invention is to provide a special height measurement tool, which includes:
[0004] Measuring reference, measuring body, reference piece, dial indicator, internal spring, measuring probe;
[0005] The measuring body is mounted on the upper end of the measuring reference;
[0006] A placement space is provided inside the measuring body, and one side of the upper end of the measuring body extends upward to form a mounting portion;
[0007] The alignment member is placed in the placement space, and a retaining spring groove is provided on the upper end of the alignment member;
[0008] The measuring end of the micrometer extends into the mounting portion and the measuring probe is mounted thereon;
[0009] The measuring probe can extend out of the mounting portion and into the retaining spring slot. One end of the internal spring is fixedly mounted inside the measuring body, and the other end of the internal spring abuts against the measuring probe.
[0010] In the above-mentioned height measurement special gauge, a side surface of the measuring body has an opening.
[0011] In the above-mentioned special gauge for height measurement, the measurement reference is arranged in a ring shape.
[0012] In the above-mentioned height measurement special gauge, the outer diameter of the measurement reference is the same as the outer diameter of the measurement body.
[0013] In the above-mentioned special gauge for height measurement, both sides of the opening are rounded.
[0014] In the above-mentioned special gauge for height measurement, the connection between the measuring body and the mounting portion is rounded.
[0015] Compared with the prior art, the above technical solution has the following positive effects:
[0016] Through the application of the utility model, a special inspection tool for height measurement is provided. When the distance between the end face of a part and the retaining spring groove needs to be measured, the reference piece is placed in the placement space so that the lower end face of the reference piece contacts the upper end face of the measuring reference, and the measuring probe extends out of the retaining spring groove. The internal spring pushes the measuring probe upward due to the elastic force until the measuring probe contacts the top of the retaining spring groove to obtain the median difference size of the reference piece. This can effectively reduce the online inspection time, reduce the time employees wait for measurement reports, improve production efficiency, and allow staff to directly perform measurements next to the production line and obtain measurement data. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of a special height measurement fixture of the present utility model.
[0018] Figure 2 This is a three-dimensional diagram of a special height measurement fixture of the present utility model.
[0019] 1. Measuring reference; 2. Measuring body; 3. Reference piece; 4. Micrometer; 5. Measuring probe; 6. Placement space; 7. Mounting part; 8. Circlip groove; 9. Opening. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the accompanying drawings and specific implementations, but they are not intended to limit the present invention.
[0021] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.
[0022] like Figures 1 to 2, a height measurement special inspection tool of a preferred embodiment is shown, which includes: a measuring reference 1, a measuring body 2, a reference piece 3, a micrometer 4, an internal spring, and a measuring probe 5.
[0023] The measuring body 2 is installed on the upper end of the measuring reference 1; a placement space 6 is provided inside the measuring body 2, and one side of the upper end of the measuring body 2 extends upward to form a mounting portion 7; the alignment member 3 is placed in the placement space 6, and a retaining spring groove 8 is provided on the upper end of the alignment member 3; the measuring end of the micrometer 4 extends into the mounting portion 7 and a measuring probe 5 is installed; the measuring probe 5 can extend out of the mounting portion 7 and extend into the retaining spring groove 8, one end of the internal spring is fixedly installed inside the measuring body 2, and the other end of the internal spring is against the measuring probe 5.
[0024] During actual use, when the distance from the end face of the part to the retaining spring groove 8 needs to be measured, the reference part 3 is placed in the placement space 6 so that the lower end face of the reference part 3 contacts the upper end face of the measuring reference 1, and the measuring probe 5 extends out of the inside of the retaining spring groove 8. The internal spring pushes the measuring probe 5 upward due to the elastic force until the measuring probe 5 contacts the top of the retaining spring groove 8 to obtain the mean difference size of the reference part 3. The size of the measured reference part 3 is checked to see if it is consistent with the three-coordinate measurement result. If it is consistent, the calibration fixture is completed, and the end face of the measured part is directly contacted with the measuring reference surface 1, and then the measuring probe 5 contacts the top of the retaining spring groove to measure and obtain the distance from the end face to the retaining spring groove.
[0025] The present invention also has the following implementation methods based on the above:
[0026] Furthermore, a special gauge for height measurement is provided, wherein a side surface of the measuring body 2 has an opening 9. Specifically, the alignment member 3 can be placed into the placement space 6 through the opening 9.
[0027] Furthermore, a special gauge for height measurement is provided, wherein the measuring reference 1 is arranged in a ring shape.
[0028] Furthermore, a special gauge for height measurement is provided, wherein the outer diameter of the measuring reference 1 is the same as the outer diameter of the measuring body 2 .
[0029] Furthermore, a special gauge for height measurement is provided, wherein both sides of the opening 9 are rounded. Specifically, the opening 9 is rounded so that when the alignment member 3 is placed into the placement space 6 through the opening 9, the alignment member 3 will not be scratched.
[0030] Furthermore, a special gauge for height measurement is provided, wherein the connection between the measuring body 2 and the mounting portion 7 is rounded.
[0031] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.
Claims
1. A special gauge for height measurement, characterized in that: include: Measuring reference, measuring body, reference piece, dial indicator, internal spring, measuring probe; The measuring body is mounted on the upper end of the measuring reference; A placement space is provided inside the measuring body, and one side of the upper end of the measuring body extends upward to form a mounting portion; The alignment member is placed in the placement space, and a retaining spring groove is provided on the upper end of the alignment member; The measuring end of the micrometer extends into the mounting portion and the measuring probe is mounted thereon; The measuring probe can extend out of the mounting portion and into the retaining spring slot. One end of the internal spring is fixedly mounted inside the measuring body, and the other end of the internal spring abuts against the measuring probe.
2. A special gauge for height measurement according to claim 1, characterized in that: A side surface of the measuring body has an opening.
3. A special gauge for height measurement according to claim 1, characterized in that: The measuring reference is arranged in a ring shape.
4. A special gauge for height measurement according to claim 1, characterized in that: The outer diameter of the measurement reference is the same as the outer diameter of the measurement body.
5. A special gauge for height measurement according to claim 2, characterized in that: Both sides of the opening are rounded.
6. A special gauge for height measurement according to claim 1, characterized in that: The connection between the measuring body and the mounting portion is rounded.