Composite depth gauge
By designing a composite depth gauge and utilizing the combination of a handle, positioning plate, and measuring plate, the problems of tooling shortage and high operator labor intensity in multi-dimensional measurement of blind hole parts were solved, achieving efficient multi-dimensional measurement and cost reduction.
Patent Information
- Application Number
- CN202422878167.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In the existing technology, the depth measurement of blind hole parts requires multiple measuring tools, which leads to high design and manufacturing costs, high labor intensity for operators, low production efficiency, and high costs for tool storage and maintenance.
A composite depth gauge is designed, including a handle, a positioning plate, a measuring plate, and a measuring rod. Through the coordinated use of these components, multiple depth dimensions can be measured in one inspection, reducing the cost of gauge manufacturing and the labor intensity of operators.
It enables simultaneous measurement of multiple depth dimensions, reducing operator workload, improving production efficiency, and decreasing the number of measuring tools and maintenance costs.
Smart Images

Figure CN223663903U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of process equipment, and specifically relates to a composite depth gauge. Background Technology
[0002] For blind hole parts with large depths, it is usually necessary to use one graduated gauge for each dimension. Multiple depth dimensions require the manufacture of multiple gauges for inspection and measurement. This increases the design and manufacturing costs. Secondly, operators need to repeat the inspection operation multiple times, increasing labor intensity and reducing production efficiency. Thirdly, the large number of gauges takes up space when stored and requires dedicated personnel for maintenance, increasing maintenance costs. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] The technical problem this invention aims to solve is how to provide a composite depth gauge to address the issues of high manufacturing costs and low production efficiency in gauge production.
[0005] (II) Technical Solution
[0006] To solve the above-mentioned technical problems, this utility model proposes a composite depth gauge, including: handle 2, positioning plate 3, measuring plate 4, pin 5, and measuring rod 6;
[0007] The handle 2 is a hollow cylindrical structure set at the top, and the measuring rod 6 is inserted into the handle 2. The outer wall of the measuring rod 6 is provided with circumferential engraving lines 1.
[0008] The measuring rod 6 is fitted with a positioning plate 3 and a measuring plate 4 from top to bottom on its exterior.
[0009] The positioning disk 3 is configured as a columnar boss structure. The upper end of the positioning disk 3 is a hollow column, and four engraving lines are arranged from top to bottom on the inner side wall of the column end. The lower part of the positioning disk 3 is a boss, which is used to position the part to be measured against the measurement reference surface.
[0010] The upper end of the measuring disk 3 is a hollow cylinder, which is fitted inside the upper cylinder of the positioning disk 3 and outside the measuring rod 6. The outer side wall of the upper cylinder is provided with circumferential engraving lines 2. The lower part of the measuring disk 3 is a disc, which is used to position the end face of the part to be measured.
[0011] The handle 2 has a hole in the middle, and a fixing pin 1 is inserted into the hole to fasten the handle 2 to the upper end of the measuring rod 6.
[0012] The measuring rod 6 has a pin 5 horizontally inserted at its lower part, which is used to prevent the measuring disc 4 from falling off during measurement.
[0013] The positioning disk 3, measuring disk 4, and measuring rod 6 work together to measure. The positioning disk 3 is placed inside the inner hole of the workpiece being measured, with the end face of the positioning disk 3 abutting against the end face A of the workpiece being measured. The depth dimension L1 and dimension L2 are detected by the cooperation of the measuring disk 4 and the measuring rod 6.
[0014] The measuring disc 4 is inserted into the end face B of the hole during measurement.
[0015] When the circumferential marking 2 on the measuring disk 4 and the marking 3 on the positioning disk are aligned, the workpiece inner hole depth L1 is at its minimum value L. 1X When the circumferential marking 2 on the measuring plate and the marking 4 on the positioning plate are aligned, the inner hole depth L1 of the workpiece is at its maximum value L. 1D .
[0016] The measuring rod 6, in conjunction with the positioning plate 3, measures the internal dimension L2 of the hole in the part to be measured.
[0017] Insert the measuring rod 6 into the C-surface of the hole. When the circumferential marking 1 on the measuring rod 6 and the marking 1 on the positioning plate 3 are aligned, the depth L2 of the workpiece's inner hole is at its minimum value L. 2X When the circumferential marking 1 on the measuring rod 6 and the marking 2 on the positioning plate 3 are aligned, it indicates that the inner hole depth L2 of the workpiece is at its maximum value L. 2D .
[0018] (III) Beneficial Effects
[0019] This invention proposes a composite depth gauge that enables the measurement of multiple dimensions in a single inspection, reducing the labor intensity of operators, improving production efficiency, and lowering the cost of measuring tools. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0021] 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.
[0022] This embodiment of a composite depth gauge includes: a handle 2, a positioning plate 3, a measuring plate 4, a pin 5, and a measuring rod 6;
[0023] The handle 2 is a hollow cylindrical structure set at the top, and the measuring rod 6 is inserted into the handle 2. The outer wall of the measuring rod 6 is provided with circumferential engraving lines 1.
[0024] The measuring rod 6 is fitted with a positioning plate 3 and a measuring plate 4 from top to bottom on its exterior.
[0025] The positioning disk 3 is configured as a columnar boss structure. The upper end of the positioning disk 3 is a hollow column, and four engraving lines are arranged from top to bottom on the inner side wall of the column end. The lower part of the positioning disk 3 is a boss, which is used to position the part to be measured against the measurement reference surface.
[0026] The upper end of the measuring disk 3 is a hollow cylinder, which is fitted inside the upper cylinder of the positioning disk 3 and outside the measuring rod 6. The outer side wall of the upper cylinder is provided with circumferential engraving lines 2. The lower part of the measuring disk 3 is a disc, which is used to position the end face of the part to be measured.
[0027] The handle 2 has a hole in the middle, and a fixing pin 1 is inserted into the hole to fasten the handle 2 to the upper end of the measuring rod 6.
[0028] The measuring rod 6 has a pin 5 horizontally inserted at its lower part, which is used to prevent the measuring disc 4 from falling off during measurement.
[0029] The positioning disk 3, measuring disk 4, and measuring rod 6 work together to measure. The positioning disk 3 is placed inside the inner hole of the workpiece being measured, with the end face of the positioning disk 3 abutting against the end face A of the workpiece being measured. The depth dimension L1 and dimension L2 are detected by the cooperation of the measuring disk 4 and the measuring rod 6.
[0030] The measuring disc 4 is inserted into the end face B of the hole during measurement.
[0031] When the circumferential marking 2 on the measuring disk 4 and the marking 3 on the positioning disk are aligned, the workpiece inner hole depth L1 is at its minimum value L. 1X When the circumferential marking 2 on the measuring plate and the marking 4 on the positioning plate are aligned, the inner hole depth L1 of the workpiece is at its maximum value L. 1D .
[0032] The measuring rod 6, in conjunction with the positioning plate 3, measures the internal dimension L2 of the hole in the part to be measured.
[0033] Insert the measuring rod 6 into the C-face of the hole. When the circumferential engraving 1 on the measuring rod 6 and the engraving 1 on the positioning plate 3 are in a straight line, the inner hole depth L2 of the workpiece is the minimum value L2X. When the circumferential engraving 1 on the measuring rod 6 and the engraving 2 on the positioning plate 3 are in a straight line, it indicates that the inner hole depth L2 of the workpiece is the maximum value L2D.
[0034] This gauge, through the cooperation of the positioning plate, the lower disc, and the measuring rod, can inspect the two depth dimensions L1 and L2 shown in the figure, further improving work efficiency, reducing labor intensity, and lowering the cost of gauge manufacturing.
[0035] When the circumferential engraving line 2 on the measuring plate 4 is located within the engraving line 3 and engraving line 4 on the positioning plate, or is on a straight line with either engraving line 3 or engraving line 4, the workpiece is qualified.
[0036] The workpiece is considered qualified when the circumferential engraving line 1 on the measuring rod is located within the positioning plate engraving line 1 and engraving line 2, or when the circumferential engraving line 1 is on a straight line with either engraving line 1 or engraving line 2.
[0037] 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 composite depth gauge, characterized in that, include: Handle (2), positioning plate (3), measuring plate (4), pin (5), measuring rod (6); The handle (2) is a hollow cylindrical structure set at the top, and the measuring rod (6) is inserted into the handle (2). The outer wall of the measuring rod (6) is provided with a circumferential engraving line. The measuring rod (6) is fitted with a positioning plate (3) and a measuring plate (4) from top to bottom on the outside; The positioning disk (3) is configured as a column boss structure. The upper end of the positioning disk (3) is a hollow column. Four engraving lines are arranged from top to bottom on the inner side wall of the column end. The lower part of the positioning disk (3) is a boss. The boss is used to position the part to be measured against the reference surface of the part to be measured. The upper end of the measuring disk (4) is a hollow cylinder, which is fitted inside the upper cylinder of the positioning disk (3) and outside the measuring rod (6). The outer side wall of the upper cylinder is provided with two circumferential engravings. The lower part of the measuring disk (4) is a disc, which is positioned with the end face of the part to be measured by the lower disc.
2. The composite depth gauge as described in claim 1, characterized in that, The handle (2) has a hole in the middle, and a fixing pin (1) is inserted in the hole to fasten the handle (2) to the upper end of the measuring rod (6).
3. The composite depth gauge as described in claim 1, characterized in that, A pin (5) is horizontally inserted through the lower part of the measuring rod (6), and the pin (5) is used to prevent the measuring disc (4) from falling off during measurement.
4. The composite depth gauge as described in claim 1, characterized in that, The positioning disk (3), measuring disk (4) and measuring rod (6) work together to measure. The positioning disk (3) is placed inside the inner hole of the workpiece being measured, and the end face of the positioning disk (3) is in contact with the end face A of the workpiece being measured. The depth dimension L1 and dimension L2 are detected by the cooperation of the measuring disk (4) and the measuring rod (6).
5. The composite depth gauge as described in claim 1, characterized in that, The measuring disc (4) is inserted into the end face B of the hole during measurement.
6. The composite depth gauge as described in claim 1, characterized in that, When the circumferential marking on the measuring disk (4) and the marking on the positioning disk are aligned, the inner hole depth L1 of the workpiece is at its minimum value L. 1X When the second circumferential marking on the measuring plate and the fourth marking on the positioning plate are aligned, the workpiece inner hole depth L1 is at its maximum value L. 1D .
7. The composite depth gauge as described in claim 1, characterized in that, The measuring rod (6) cooperates with the positioning plate (3) to measure the inner dimension L2 of the hole of the part to be measured; Insert the measuring rod (6) into the C-face of the hole. When the circumferential engraving line on the measuring rod (6) and the engraving line on the positioning plate (3) are aligned, the depth L2 of the workpiece's inner hole is at its minimum value L. 2X When the circumferential marking on the measuring rod (6) and the marking on the positioning plate (3) are on the same straight line, it indicates that the depth L2 of the workpiece's inner hole is at its maximum value. 2D .