Special tool for four-point depth measurement
By designing a special tooling for measuring depth at four points, and using the circular measuring line on the measuring rod to determine the qualification of the measured part, the problem that ordinary tools cannot measure the assembly depth of special-shaped product parts is solved, and accurate and efficient measurement and judgment are achieved.
Patent Information
- Application Number
- CN202422917053.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing tools are not effective in measuring and determining the assembly depth of components in products with special shapes.
Design a special tooling for four-point depth measurement, including a measuring panel, a measuring rod, a boss, and a protrusion. The conformity of the measured part is judged by the circular measuring line on the measuring rod.
It enables accurate measurement and rapid determination of product parts with special shapes, improving measurement efficiency and accuracy.
Smart Images

Figure CN223769430U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tooling measurement, specifically relating to a special tooling for measuring depth at four points. Background Technology
[0002] Currently, after the assembly of certain product components is completed, it is necessary to measure and determine the assembly depth to judge whether the assembly of the component meets the technical requirements. However, due to the special shape of the product, ordinary tools cannot complete this measurement and determination requirement. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] The technical problem this invention aims to solve is how to provide a special tooling for four-point depth measurement, so as to solve the problem that ordinary tools cannot complete the measurement and judgment requirements.
[0005] (II) Technical Solution
[0006] To solve the above-mentioned technical problems, this utility model proposes a special tooling for four-point depth measurement, including: a measuring panel 1, a measuring rod 2, a boss 3, and a protrusion 4;
[0007] The measuring panel 1 is set in the shape of a circular piece. A protrusion 4 is provided below the center of the measuring panel 1. Multiple through holes are opened in the vertical direction near the center of the measuring panel 1 and the protrusion 4. A measuring rod 2 is inserted into each through hole. A boss 3 is provided along the circumferential direction below the measuring panel 1.
[0008] The measuring rod 2 has two circular measuring lines on its side wall in the vertical direction. During the measurement process, when one circular measuring line is placed above the measuring panel, the measured part is judged to be of qualified size. When both measuring lines or no measuring line is placed above the measuring panel, the measured part is judged to be of unqualified size.
[0009] The measuring panel 1 and the protrusion 4 have four through holes near their center, and the four through holes are located in a circular pattern on the measuring panel 1.
[0010] The boss 3 is matched with the inner diameter of the circular groove above the component being measured.
[0011] The test component has a circular groove above it with a ring-shaped test part, and the diameter of the measuring rod 2 is equal to the width of the ring above the test part.
[0012] The height of the protrusion 3 is set to 30 mm to ensure that the measuring rod 2 is perpendicular to the panel in real time during the activity.
[0013] (III) Beneficial Effects
[0014] This utility model proposes a special tooling for four-point depth measurement. By using the boss structure in this utility model to match the inner diameter of the part being measured, the center of the tooling is concentric with the part being measured, ensuring accurate measurement position and fast measurement efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the component under test. Detailed Implementation
[0018] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0019] This embodiment provides a special tooling for four-point depth measurement, including: a measuring panel 1, a measuring rod 2, a boss 3, and a protrusion 4;
[0020] The measuring panel 1 is set in the shape of a circular piece. A protrusion 4 is provided below the center of the measuring panel 1. Multiple through holes are opened in the vertical direction near the center of the measuring panel 1 and the protrusion 4. A measuring rod 2 is inserted into each through hole. A boss 3 is provided along the circumferential direction below the measuring panel 1.
[0021] The measuring rod 2 has two circular measuring lines on its side wall along the vertical direction.
[0022] The measuring panel 1 and the protrusion 4 have four through holes near their center, and the four through holes are located in a circular pattern on the measuring panel 1.
[0023] The boss 3 is matched with the inner diameter of the circular groove above the component being measured.
[0024] The test component has a circular groove above it with a ring-shaped test part, and the diameter of the measuring rod 2 is equal to the width of the ring above the test part.
[0025] The height of the protrusion 3 is set to 30 mm to ensure that the measuring rod 2 is perpendicular to the panel in real time during the activity.
[0026] The boss mates with the inner diameter of the part being measured, ensuring that the center of the fixture is concentric with the part being measured, thus guaranteeing accurate measurement position. The diameter of the measuring rod is equal to the width of the part being measured, ensuring a high pass rate and preventing a decrease in measurement accuracy due to a large difference between the measuring rod diameter and the measured width. The center of the measuring panel has a 30 mm protrusion to ensure that the measuring rod remains perpendicular to the measuring panel during movement, preventing tilting of the measuring rod due to insufficient panel thickness, which would affect measurement accuracy. The measuring rod has two ring-shaped red lines. During measurement, seeing one ring-shaped red line indicates that the dimension is acceptable, while seeing two ring-shaped red lines or not seeing any indicates that the dimension is unacceptable. The workpiece being measured has a protruding ring.
[0027] 1: When measuring, place the panel boss into the inner diameter of the part being measured.
[0028] 2: Press down on each of the four probes until there is no gap between the probe and the part being measured.
[0029] 3: Determine whether the assembly of the component is qualified based on the number of red rings on the measuring rod.
[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A four-point gage for measuring depth, characterized in that, Include: Measuring panel (1), measuring rod (2), boss (3), convex part (4); The measuring panel (1) is provided with a convex part (4) below the center of the circle, a plurality of through holes are provided in the vertical direction near the center of the measuring panel (1) and the convex part (4), a measuring rod (2) is arranged in each through hole, and a boss (3) is arranged in the circumferential direction below the measuring panel (1); The side wall of the measuring rod (2) is provided with two annular measuring lines in the vertical direction.
2. The four-point gage depth specific tooling of claim 1, wherein, The measuring panel (1) and the convex part (4) are provided with four through holes near the center, and the positions of the four through holes are circular on the measuring panel (1).
3. The four-point gage depth specific tooling of claim 1, wherein, The boss (3) matches the inner diameter of the circular groove above the measured component.
4. The four-point gage of claim 3, wherein, A circular ring-shaped measured part is arranged in the circular groove above the measured component, and the diameter of the measuring rod (2) is equal to the width of the circular ring above the measured part.
5. The four-point gage of claim 1, wherein, The height of the convex part (4) is 30mm, which is used to ensure that the measuring rod (2) and the panel are in a vertical state in real time during the movement of the measuring rod (2).