Inclination testing fixture for end face teeth

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By designing the end-face tooth inclination detector, using the coordination of the guide seat and coarse positioning pin and the design of the rod number display, the high cost and low efficiency of the existing detection methods are solved, and the rapid and accurate site on the workshop is achieved The inspection improves the accuracy of the inclination measurement of the end face teeth.

CN222336367UActive Publication Date: 2025-01-10WUXI VGAGE MEASURING EQUIP CO LTD

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Patent Information

Application Number: CN202421035750.8
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-13
Publication Date: 2025-01-10
Estimated Expiration: 2034-05-13

AI Technical Summary

Technical Problem

The existing end face tooth inclination detection methods have problems such as high cost, low efficiency, inability to detect on-site, complex operation and prone to errors, which affect the measurement accuracy.

Method used

An end-face teeth inclination detector was designed, which positioned the end face through the coordination of the guide seat and the coarse positioning pin, so that the center of the end face teeth coincided with the center of the reference seat, and used the design of the measuring rod and digital display to improve the reading accuracy. , and accurately detect through the calculation of the calibration parts quickly clear and enlarge ratio.

Benefits of technology

It realizes low-cost, fast and accurate detection of end face teeth inclination, and can be inspected on site in the workshop, reducing reading errors and improving detection efficiency and accuracy.

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Abstract

An end face tooth inclination testing fixture comprises a reference seat and a measuring rod, a guide seat is arranged in the center of the top of the reference seat, and first measuring ball heads and coarse positioning pins are arranged on the two sides of the top of the reference seat; the measuring rod is rotationally arranged in the reference seat, two ends of the measuring rod are connected with digital display meters, one side of the top of the measuring rod is provided with a second measuring ball head, and the other side of the top of the measuring rod is provided with a third measuring ball head capable of ascending and descending; wherein the connecting line of the two first measuring ball heads passes through the center of the reference seat, the center of the measuring rod coincides with the center of the reference seat, the distances from the two digital display meters to the center of the measuring rod are the same, and the distances from the second measuring ball head and the third measuring ball head to the center of the measuring rod are the same. According to the utility model, the guide seat and the coarse positioning pin are matched with each other to position the end face, so that the center of the end face tooth coincides with the center of the reference seat, and inaccurate reading caused by miscoincidence of the center of the end face tooth and the center of the reference seat can be prevented.

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Description

Technical Field

[0001] The utility model relates to the technical field of face gear measurement, in particular to a face gear inclination measuring tool. Background Art

[0002] The face gear flange is a workpiece used to connect and transfer rotational kinetic energy between transmission shafts. Because its flange surface is equipped with face gears, it has good anti-torsion ability and is widely used in the field of motor vehicle transmission.

[0003] The common detection method for face gear inclination detection is to use three-coordinate measuring machine. There are the following disadvantages in using three-coordinate measuring machine: the price of three-coordinate measuring machine is very high, and the detection cost is high; the detection efficiency is low, and rapid detection cannot be achieved; it generally needs to be placed in a constant temperature measurement room for detection, and cannot be placed on-site in the workshop for detection; the operator's skills are relatively high, and special three-coordinate operation and programming training is required to master the use. There are also some other measurement methods for inclination detection, but it is easy to make mistakes when placing the face gear, which affects the accuracy of the measurement.

[0004] Therefore, we propose a face tooth inclination inspection tool. Utility Model Content

[0005] In view of the shortcomings in the above-mentioned existing production technology, the applicant provides an end face tooth inclination inspection tool, which positions the end face through the cooperation of a guide seat and a coarse positioning pin, so that the center of the end face tooth coincides with the center of the reference seat, thereby preventing the center of the end face tooth from coinciding with the center of the reference seat, resulting in inaccurate readings.

[0006] The technical solution adopted by the utility model is as follows:

[0007] An end face tooth inclination measuring tool, comprising:

[0008] The reference seat has a guide seat at the top center, and both sides of the top of the reference seat are provided with a first measuring ball head and a coarse positioning pin;

[0009] A measuring rod is rotatably arranged in a reference seat, both ends of the measuring rod are connected with digital display meters, a second measuring ball head is arranged on one side of the top of the measuring rod, and a third measuring ball head capable of being raised and lowered is arranged on the other side of the top of the measuring rod;

[0010] Among them, the connecting line of the two first measuring ball heads passes through the center of the reference seat, the center of the measuring rod coincides with the center of the reference seat, the distances from the two digital displays to the center of the measuring rod are the same, the distances from the second measuring ball head and the third measuring ball head to the center of the measuring rod are the same, and the end face teeth are positioned by cooperating with the guide seat and the coarse positioning pin so that the center of the end face teeth coincides with the center of the reference seat.

[0011] It is further characterized by:

[0012] The measuring rod is provided with a positioning bushing, the bottom of the third measuring ball head is provided with a positioning rod, the positioning rod is movably arranged in the positioning bushing, and the positioning bushing is further provided with a spring and a third screw plug below the positioning rod.

[0013] The reference seat is arranged on a bottom plate, and a plurality of feet are arranged at intervals at the bottom of the bottom plate.

[0014] A calibration piece placement seat is arranged on one side of the top of the bottom plate, a calibration piece is placed on the top of the calibration piece placement seat, and a handle is arranged on the top of the calibration piece.

[0015] The digital display is connected with the measuring rod through a measuring seat.

[0016] A protective plate is arranged above the digital display, the protective plate is provided with an observation hole for reading, and the protective plate is arranged on the measuring seat.

[0017] The reference seat is provided with a horizontal through hole, a first threaded hole is opened at the center of the guide seat, a second threaded hole corresponding to the first threaded hole is opened at the center of the reference seat, the through hole is connected with the second threaded hole, a positioning hole is opened at the center of the measuring rod, the measuring rod is inserted in the through hole, and the measuring rod can rotate in the through hole, a first top and a first screw plug are arranged in the first threaded hole, a second top and a second screw plug are arranged in the second threaded hole, the first top and the second top are respectively arranged on the upper and lower sides of the positioning hole, for limiting the measuring rod.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model has a compact and reasonable structure, is easy to operate, has a low manufacturing cost for the measuring fixture, and can be used for rapid on-site inspection in the workshop. The end face is positioned by cooperating with the guide seat and the coarse positioning pin, so that the center of the end face tooth coincides with the center of the reference seat, which can prevent the center of the end face tooth from not coinciding with the center of the reference seat and causing inaccurate readings. By setting two digital display meters with the same distance from the center of the measuring rod, the accuracy of the reading can be improved to prevent reading errors.

[0020] At the same time, the utility model also has the following advantages:

[0021] (1) The distance between the second measuring ball head and the third measuring ball head is X, and the inclination tolerance is Y. Then the permissible range of the second measuring ball head and the third measuring ball head swinging around the center is ±Y / 2. The distance between the connection between the two digital displays and the measuring rod is Z, and the magnification ratio is Z / X. Then the permissible range of the reading variation of the two digital displays is (±Y / 2) / (Z / X)=±XY / (2Z). If the reading is within the permissible range, the measurement is qualified. Otherwise, the measurement is unqualified. In addition, the readings of the two digital displays can be verified with each other, making the readings more accurate.

[0022] (2) Place the calibration piece along the guide seat, insert the side guide hole of the calibration piece into the coarse positioning pin, embed the two first measuring ball heads, the second measuring ball heads and the third measuring ball heads into the tooth grooves, and reset the two digital displays. This can quickly locate the zero point of the digital displays and reset them. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 for Figure 1 AA cross-section diagram of .

[0025] Figure 3 for Figure 2 Schematic diagram of the BB cross section.

[0026] Figure 4 for Figure 3 Enlarged schematic diagram at point C in the middle.

[0027] Figure 5 It is a schematic diagram of the protective plate of the utility model.

[0028] Figure 6 It is a schematic diagram of the calculation principle of the utility model.

[0029] Wherein: 1. bottom plate; 101. bottom foot; 2. reference seat; 201. first measuring ball head; 202. coarse positioning pin; 203. guide seat; 204. first threaded hole; 205. first top point; 206. first screw plug; 207. second threaded hole; 208. second top point; 209. second screw plug; 210. through hole; 3. measuring rod; 301. second measuring ball head; 302. positioning bushing; 303. third measuring ball head; 304. positioning rod; 305. spring; 306. third screw plug; 307. positioning hole; 4. digital display; 401. measuring seat; 402. protective plate; 403. observation hole; 5. calibration piece; 501. calibration piece placement seat; 502. handle. DETAILED DESCRIPTION

[0030] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0031] like Figure 1-Figure 5 As shown, a face gear inclination inspection tool includes a reference seat 2, a measuring rod 3, a digital display 4, etc. The reference seat 2 is arranged on a base plate 1, and a plurality of feet 101 are arranged at intervals at the bottom of the base plate 1. A calibration piece placement seat 501 is arranged on the other side of the base plate 1, and a calibration piece 5 is placed on the top of the calibration piece placement seat 501. A handle 502 is arranged on the top of the calibration piece 5, and two handles 502 are arranged, and the two handles 502 are arranged at intervals.

[0032] A guide seat 203 is provided at the center of the top of the reference seat 2. First measuring ball heads 201 are provided at both ends of the top of the reference seat 2. The line connecting the two first measuring ball heads 201 passes through the center of the reference seat 2. A coarse positioning pin 202 is provided at the top of the reference seat 2 outside the first measuring ball head 201. The end face gear can be positioned by the guide seat 203 and the coarse positioning pin 202 to prevent the end face gear from being misaligned. A first threaded hole 204 is provided at the center of the guide seat 203. A second threaded hole 207 corresponding to the first threaded hole 204 is provided at the center of the reference seat 2. The reference seat 2 is provided with a horizontal through hole 210, which is connected to the second threaded hole 207.

[0033] The measuring rod 3 is inserted into the through hole 210, and the measuring rod 3 can rotate in the through hole 210. A positioning hole 307 is provided at the center of the measuring rod 3. A first apex 205 is provided in the first threaded hole 204, and the first apex 205 is limited by the first screw plug 206. A second apex 208 is provided in the second threaded hole 207, and the second apex 208 is limited by the second screw plug 209. The first apex 205 and the second apex 208 are respectively provided at the upper and lower sides of the positioning hole 307 of the measuring rod 3, and are used to limit the measuring rod 3, that is, the measuring rod 3 is rotatably provided with the reference seat 2, and the center of the measuring rod 3 coincides with the center of the reference seat 2. A second measuring ball head 301 is arranged on one side of the top of the measuring rod 3, and a positioning sleeve 302 is arranged on the other side of the measuring rod 3. A third screw plug 306 is arranged in the positioning sleeve 302, and a spring 305 is arranged above the third screw plug 306 of the positioning sleeve 302. A positioning rod 304 is arranged above the spring 305 of the positioning sleeve 302, and a third measuring ball head 303 is arranged on the top of the positioning rod 304. The distances from the second measuring ball head 301 and the third measuring ball head 303 to the center of the measuring rod 3 are the same.

[0034] Both ends of the measuring rod 3 are connected to the digital display 4 through the measuring seat 401. The distances between the two digital display 4 and the center of the measuring rod 3 are the same. A protective plate 402 is arranged above the digital display 4. The protective plate 402 is provided with an observation hole 403. The value of the digital display 4 is read through the observation hole 403. The protective plate 402 is connected to the measuring seat 401. The measuring seat 401 is provided with a clamping sleeve, a pressing sleeve, a needle pin, a measuring pin spring, a measuring pin and a needle pin in sequence from the side of the digital display 4 to the side of the measuring rod 3.

[0035] The calculation principle is as follows Figure 6 As shown, the distance between the second measuring ball head 301 and the third measuring ball head 303 is X, and the inclination tolerance is Y. Then, the permissible range of the second measuring ball head 301 and the third measuring ball head 303 swinging around the center is ±Y / 2, the distance between the connection between the two digital displays 4 and the measuring rod 3 is Z, and the magnification ratio is Z / X; then the permissible range of the reading variation of the two digital displays 4 is (±Y / 2) / (Z / X)=±XY / (2Z).

[0036] During specific use, the calibration piece 5 is placed along the guide seat 203, and the side guide hole of the calibration piece 5 is inserted into the coarse positioning pin 202, the two first measuring ball heads 201, the second measuring ball head 301 and the third measuring ball head 303 are embedded in the tooth grooves, the two digital display meters 4 are reset, the calibration piece 5 is taken out, the end face teeth are placed along the guide seat 203, and the side guide hole of the end face teeth is inserted into the coarse positioning pin 202, and then the tooth grooves of the end face teeth are positioned by the two first measuring ball heads 201, and the end face is positioned by the cooperation of the guide seat 203 and the coarse positioning pin 202, so that the center of the end face teeth coincides with the center of the reference seat 2, so that the measurement is more accurate. Swing the measuring rod 3, the measuring rod 3 will drive the two digital displays 4 to move, so that the second measuring ball head 301 and the third measuring ball head 303 are embedded in the tooth groove, accurately positioned, and the readings of the two digital displays 4 are read. If the readings are within the allowable range of (±Y / 2) / (Z / X)=±XY / (2Z), the measurement is qualified, otherwise, the measurement is unqualified. The manufacturing cost of the measuring fixture is low, and it can be used for rapid detection on site in the workshop. The end face is positioned by the cooperation of the guide seat 203 and the coarse positioning pin 202, so that the center of the end face tooth coincides with the center of the reference seat 2, which can prevent the center of the end face tooth from not coinciding with the center of the reference seat 2 and causing inaccurate readings. By setting two digital displays 4 with the same distance from the center of the measuring rod 3, the accuracy of the readings can be improved to prevent reading errors.

[0037] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A face tooth inclination measuring tool, characterized in that: include: A reference seat (2), a guide seat (203) is arranged at the center of the top, and a first measuring ball head (201) and a rough positioning pin (202) are arranged on both sides of the top of the reference seat (2); A measuring rod (3) is rotatably arranged in the reference seat (2), both ends of the measuring rod (3) are connected to a digital display (4), a second measuring ball head (301) is arranged on one side of the top of the measuring rod (3), and a third measuring ball head (303) capable of being raised and lowered is arranged on the other side of the top of the measuring rod (3); The connecting line of the two first measuring ball heads (201) passes through the center of the reference seat (2), the center of the measuring rod (3) coincides with the center of the reference seat (2), the distances from the two digital displays (4) to the center of the measuring rod (3) are the same, the distances from the second measuring ball head (301) and the third measuring ball head (303) to the center of the measuring rod (3) are the same, and the end face teeth are positioned by the cooperation of the guide seat (203) and the rough positioning pin (202), so that the center of the end face teeth coincides with the center of the reference seat (2).

2. The end face tooth inclination measuring tool according to claim 1, characterized in that: The measuring rod (3) is provided with a positioning sleeve (302), the bottom of the third measuring ball head (303) is provided with a positioning rod (304), the positioning rod (304) is movably arranged in the positioning sleeve (302), and the positioning sleeve (302) is further provided with a spring (305) and a third screw plug (306) below the positioning rod (304).

3. The end face tooth inclination measuring tool according to claim 1, characterized in that: The reference seat (2) is arranged on a base plate (1), and a plurality of base feet (101) are arranged at intervals at the bottom of the base plate (1).

4. The end face tooth inclination measuring tool as claimed in claim 3, characterized in that: A calibration piece placement seat (501) is provided on one side of the top of the base plate (1), a calibration piece (5) is placed on the top of the calibration piece placement seat (501), and a handle (502) is provided on the top of the calibration piece (5).

5. The end face tooth inclination measuring tool according to claim 1, characterized in that: The digital display meter (4) is connected to the measuring rod (3) via a measuring seat (401).

6. The end face tooth inclination measuring tool as claimed in claim 5, characterized in that: A protective plate (402) is arranged above the digital display (4), and the protective plate (402) is provided with an observation hole (403) for reading. The protective plate (402) is arranged on the measuring seat (401).

7. The end face tooth inclination measuring tool according to claim 1, characterized in that: The reference seat (2) is provided with a horizontal through hole (210), the guide seat (203) is provided with a first threaded hole (204) at the center, the reference seat (2) is provided with a second threaded hole (207) corresponding to the first threaded hole (204) at the center, the through hole (210) is connected with the second threaded hole (207), a positioning hole (307) is provided at the center of the measuring rod (3), the measuring rod (3) is inserted into the through hole (210), and the measuring rod (3) can rotate in the through hole (210), a first top point (205) and a first screw plug (206) are provided in the first threaded hole (204), a second top point (208) and a second screw plug (209) are provided in the second threaded hole (207), and the first top point (205) and the second top point (208) are respectively provided on the upper and lower sides of the positioning hole (307) for limiting the measuring rod (3).