Shaft shoulder length measuring device
A measuring device with V-block positioning and dial indicator comparison method addresses the inefficiencies of traditional methods by providing high accuracy and low skill requirement measurements for shaft shoulder length.
Patent Information
- Application Number
- CN202420954783.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing methods for measuring shaft shoulder length, such as using vernier calipers and micrometers, are prone to gross measurement errors due to operator skill requirements and are inefficient, while three-coordinate measuring instruments are expensive and not cost-effective.
A measuring device with a V-shaped block positioning and dial indicator comparison method, featuring a main board, V-blocks, lever, dial indicator, and other components, designed for high accuracy and low skill requirements.
The device achieves high measurement accuracy and efficiency with reduced operator skill demands, suitable for measuring shaft parts effectively.
Smart Images
Figure CN222188100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a measuring device for shaft shoulder length, belonging to the technical field of shaft shoulder measuring equipment. Background Art
[0002] Automotive powertrain components use a large number of shaft parts, and the shoulder length of shaft parts needs to be measured quickly, accurately, and efficiently to ensure product quality and production efficiency. Shoulder length refers to the distance between the two step end faces of shaft parts. The traditional method uses general-purpose inspection tools such as vernier calipers and micrometers to measure.
[0003] However, universal inspection tools require high operating skills from operators. If universal inspection tools such as vernier calipers and micrometers are skewed, it is easy to cause gross measurement errors. The three-coordinate measuring instrument is expensive and inefficient. Now there is an urgent need for a shoulder length measuring device to solve the above problems. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a measuring device for the shoulder length to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. A measuring structure with V-shaped block positioning and a dial indicator comparison method for measuring the shoulder length is designed. When in use, the measuring structure has high measurement accuracy, high efficiency, and low operator skill requirements. It has great promotion and application prospects in the measurement of shaft parts.
[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a measuring device for shoulder length, comprising a main board, a lever, a second V-block, a dial indicator seat and a base, wherein the left and right ends of the main board are respectively longitudinally fixed with a first V-block and a second V-block by a plurality of V-block bolts, the right end of the second V-block is installed with a lever seat by a lever seat bolt and a lever seat pin, a lever shaft is installed on the inner side of the lever seat, the lever is movably installed on the outside of the lever shaft, a measuring steel ball is inlaid on the lower left end of the lever, an adjusting bolt is inserted inside the lever, the dial indicator seat is installed on the right side of the upper end of the main board by the dial indicator seat bolt, a fixing sleeve is installed in the dial indicator seat, and a dial indicator head is slidably arranged in the fixing sleeve, a dial indicator is installed on the left end of the dial indicator head, brackets are installed on the left and right sides of the upper end of the base, a standard shaft is horizontally installed between the two brackets by a standard shaft bolt, a plurality of cylinders are installed on the upper end of the base, and the first V-block and the second V-block are both placed on the upper ends of the plurality of cylinders.
[0006] Furthermore, handle brackets are obliquely installed on the left and right ends of the exterior of the main board, and handles are installed on the inner sides of the two handle brackets through handle bolts.
[0007] Furthermore, V-block pins are provided at the connection points between the left and right ends of the mainboard and the first V-block and the second V-block.
[0008] Furthermore, a ball hole is opened at the upper left end of the lever, and a dial gauge head steel ball is installed in the ball hole, and the right end of the dial gauge head is in point contact with the dial gauge head steel ball.
[0009] Furthermore, a spring groove is provided at the upper left end of the lever, and a spring is installed in the spring groove.
[0010] Furthermore, an adjustable bolt is screwed on the left end of the first V-shaped block through a thread, a large steel ball is installed on the right end of the adjustable bolt, and a nut is screwed on the left end of the adjustable bolt.
[0011] The beneficial effects of the utility model: the utility model is a measuring device for the shoulder length. Because the utility model adds a main board, a first V-block, a second V-block, a lever seat, a lever shaft, a lever, a dial indicator seat, a dial indicator, a large steel ball, a dial indicator head, a dial indicator head steel ball, an adjustment bolt, a measuring steel ball and a standard shaft, our design improvement and actual use show that the device has a reasonable structure and good practicality. A measuring structure with V-block positioning and a shoulder length measured by a dial indicator comparison method is designed. When used, the measuring structure has high measurement accuracy, high efficiency and low operator skill requirements. It has great promotion and application prospects in the measurement of shaft parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a measuring device for shaft shoulder length of the utility model;
[0014] Figure 2 It is a schematic diagram of the measuring part of a measuring device for shaft shoulder length of the utility model;
[0015] Figure 3 for Figure 2 Schematic cross-sectional view of ;
[0016] Figure 4 It is a three-dimensional schematic diagram of a standard shaft of a measuring device for shaft shoulder length of the utility model;
[0017] In the figure: 1-handle bracket, 2-handle, 3-handle bolt, 4-main board, 5-first V-block, 6-second V-block, 7-lever seat, 8-lever seat bolt, 9-lever seat pin, 10-lever shaft, 11-lever, 12-V-block pin, 13-V-block bolt, 14-dial gauge seat, 15-dial gauge seat bolt, 16-dial gauge, 17-large steel ball, 18-adjustable bolt, 19-nut, 20-dial gauge head, 21-fixed sleeve, 22-dial gauge head steel ball, 23-adjusting bolt, 24-measuring steel ball, 25-standard shaft, 26-bracket, 27-cylinder, 28-base, 29-standard shaft bolt. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] See also Figure 1-Figure 4 The utility model provides a technical solution: a measuring device for the length of a shaft shoulder, comprising a main board 4, a lever 11, a second V-shaped block 6, a dial gauge seat 14 and a base 28. The left and right ends of the main board 4 are respectively longitudinally fixed with a first V-shaped block 5 and a second V-shaped block 6 by a plurality of V-shaped block bolts 13. The right end of the second V-shaped block 6 is installed with a lever seat 7 by a lever seat bolt 8 and a lever seat pin 9. A lever shaft 10 is installed inside the lever seat 7. The lever 11 is movably installed outside the lever shaft 10. A measuring steel ball 24 is inlaid at the lower left end of the lever 11. The lever 1 An adjusting bolt 23 is inserted inside the base 28, a dial gauge seat 14 is installed on the upper right side of the main board 4 through a dial gauge seat bolt 15, a fixing sleeve 21 is installed in the dial gauge seat 14, and a dial gauge head 20 is slidably arranged in the fixing sleeve 21, a dial gauge 16 is installed on the left end of the dial gauge head 20, brackets 26 are installed on the left and right sides of the upper end of the base 28, a standard shaft 25 is horizontally installed between the two brackets 26 through a standard shaft bolt 29, a plurality of cylinders 27 are installed on the upper end of the base 28, and the first V-shaped block 5 and the second V-shaped block 6 are both placed on the upper ends of the plurality of cylinders 27.
[0020] As the first embodiment of the utility model: handle brackets 1 are obliquely installed on the left and right ends of the main board 4, and handles 2 are installed on the inner sides of the two handle brackets 1 through handle bolts 3. The added handles 2 facilitate the measurement personnel to lift the measurement part of the device for transfer. V-block pins 12 are provided at the connection between the left and right ends of the main board 4 and the first V-block 5 and the second V-block 6. A ball hole is provided at the upper left end of the lever 11, and a dial gauge head steel ball 22 is installed in the ball hole. The right end of the dial gauge head 20 is in point contact with the dial gauge head steel ball 22. Through the rotation of the lever 11, the dial gauge head steel ball 22 will push the dial gauge head 20, and the pointer of the dial gauge 16 is cleared at this time.
[0021] A spring slot is provided at the upper left end of the lever 11, and a spring is installed in the spring slot, and the spring elastic force will expand the lever 11 and the upper end of the lever seat 7. An adjustable bolt 18 is screwed on the left end of the first V-shaped block 5 through a thread, a large steel ball 17 is installed on the right end of the adjustable bolt 18, and a nut 19 is screwed on the left end of the adjustable bolt 18. The position of the large steel ball 17 can be adjusted by adding the adjustable bolt 18, and the large steel ball 17 can contact one side of the shaft shoulder.
[0022] As the second embodiment of the utility model: When the device is actually used, the operation process is as follows: the first step is calibration: put the detection part of the device on the calibration part (refer to Figure 1 ), at this time, the lower ends of the first V-block 5 and the second V-block 6 are both placed on the multiple cylinders 27, and the first V-block 5 and the second V-block 6 are clamped on the outer circle of the standard shaft 25, and a certain force is applied by hand along the direction of the standard shaft 25, so that the large steel ball 17 contacts with one side of the shaft shoulder, and through the rotation of the lever 11, the dial gauge head steel ball 22 will push the dial gauge head 20, and the pointer of the dial gauge 16 is cleared at this time;
[0023] The second step of measurement: Then place the detection part on the shoulder to be measured, the first V-block 5 and the second V-block 6 clamp the outer circle of the measuring shaft, and apply a certain force along the direction of the measuring shaft by hand to make the large steel ball 17 contact one side of the shoulder. Through the rotation of the lever 11, the dial gauge head steel ball 22 will push the dial gauge head 20 to the left, and the reading of the dial gauge 16 at this time is the error between the length of the measuring shaft and the standard shaft shoulder.
[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.
[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A device for measuring the length of a shaft shoulder, comprising a main board (4), a lever (11), a second V-shaped block (6), a dial indicator seat (14) and a base (28), characterized in that: The left and right ends of the main board (4) are respectively longitudinally fixed with a first V-shaped block (5) and a second V-shaped block (6) by a plurality of V-shaped block bolts (13); the right end of the second V-shaped block (6) is mounted with a lever seat (7) by a lever seat bolt (8) and a lever seat pin (9); a lever shaft (10) is mounted inside the lever seat (7); the lever (11) is movably mounted outside the lever shaft (10); a measuring steel ball (24) is embedded at the lower left end of the lever (11); and an adjusting bolt (23) is inserted inside the lever (11); The dial gauge seat (14) is mounted on the right side of the upper end of the main board (4) via a dial gauge seat bolt (15); a fixing sleeve (21) is mounted in the dial gauge seat (14); a dial gauge head (20) is slidably arranged in the fixing sleeve (21); a dial gauge (16) is mounted on the left end of the dial gauge head (20); brackets (26) are mounted on the left and right sides of the upper end of the base (28); a standard shaft (25) is horizontally mounted between the two brackets (26) via a standard shaft bolt (29); a plurality of cylinders (27) are mounted on the upper end of the base (28); and the first V-shaped block (5) and the second V-shaped block (6) are both placed on the upper ends of the plurality of cylinders (27).
2. A measuring device for shaft shoulder length according to claim 1, characterized in that: The left and right ends of the exterior of the main board (4) are both obliquely mounted with handle brackets (1), and the inner sides of the two handle brackets (1) are both mounted with handles (2) via handle bolts (3).
3. A measuring device for shaft shoulder length according to claim 1, characterized in that: V-shaped block pins (12) are provided at the connection points between the left and right ends of the main board (4) and the first V-shaped block (5) and the second V-shaped block (6).
4. A measuring device for shaft shoulder length according to claim 1, characterized in that: A ball hole is provided at the upper left end of the lever (11), and a dial gauge steel ball (22) is installed in the ball hole. The right end of the dial gauge (20) is in point contact with the dial gauge steel ball (22).
5. The measuring device for shaft shoulder length according to claim 1, characterized in that: A spring groove is provided at the upper left end of the lever (11), and a spring is installed in the spring groove.
6. The measuring device for shaft shoulder length according to claim 1, characterized in that: An adjustable bolt (18) is screwed into the left end of the first V-shaped block (5) through a thread, a large steel ball (17) is installed at the right end of the adjustable bolt (18), and a nut (19) is screwed into the left end of the adjustable bolt (18).