Tool for adjusting detection of gears of various specifications

Abstract

The utility model discloses a tool for adjusting detection of gears of various specifications, which comprises a tip, a base and a sizing block, the tip comprises a top seat of a cylindrical sleeve with an internal threaded hole, an adjusting rod, a connecting arm and a spherical connector, the adjusting rod is provided with external threads matched with the internal threaded hole, one end of the adjusting rod is fixedly provided with the connecting arm, and the other end of the adjusting rod is fixedly provided with the spherical connector. The connecting arm is provided with four blind holes which are symmetrical in pairs, the other end of the connecting arm and the spherical connector are of an integrated structure, and the spherical connector abuts against the base and is used for supporting and leveling the base. A plurality of annular grooves are formed in the upper plane of the base, and three spherical holes distributed in an annular array relative to the center of the base are formed in the lower plane of the base. According to the utility model, through the reasonably designed center and base, stable positioning of the gear in the detection process can be realized, shaking and displacement are reduced, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This utility model relates to tools for fastening, connecting, disassembling or clamping, specifically a tooling for adjusting and inspecting gears of various specifications. Background Technology

[0002] Gears are mechanical components that transmit motion and power through continuous meshing of gears on their rims. They are widely used in mechanical transmission and the entire mechanical field. Gear inspection is a crucial step in ensuring the performance and quality of finished gears. Gear inspection is not only an important basis for the acceptance of finished gears but also a technical guarantee for quality control during the gear manufacturing process. Generally, gear testing instruments are used to test aspects such as hardness and transmission accuracy. Before testing, the gear needs to be fixed on a testing platform, meeting two benchmark requirements: the gear's axis must coincide with the axis of the testing platform, and the gear's end face must be parallel to the testing platform. For smaller gears, the axis and end face positioning generally rely on a mandrel. The gear is fitted onto the mandrel and then fixed. However, this method requires manufacturing fixed shafts of different sizes for gears of different dimensions, increasing costs. Furthermore, each time gears with different sized mating holes are tested, the fixed shaft needs to be removed and replaced, increasing measurement costs and time, and ultimately reducing measurement efficiency. For very large gears, due to their weight and large inner diameter, the mandrel and center cannot support their weight. Therefore, the common practice is to place the large gear on a level block on the testing platform, and then use a copper rod to tap the outer circumference of the gear to align its axis with the testing platform's axis. However, directly placing the level block on the testing platform cannot adjust for workpiece runout, thus affecting the accuracy of the testing results. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a tooling for adjusting the detection of gears of various specifications. It can position gears of different sizes and specifications for detection, which greatly increases the application range of some existing gear testing instruments.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a tooling for adjusting the detection of gears of various specifications, including a center 1, a base 2, and a shim 3. The height of the center 1 can be adjusted according to the size of the gear. The center 1 includes a top seat 4 and an adjustment part. The lower part of the top seat 4 is a U-shaped rectangular base. The rectangular base has through holes on both sides for installation and fixing. The upper part of the center of the top seat 4 is a cylindrical sleeve 8. The top seat 4 and the cylindrical sleeve 8 are provided with through internal threaded holes 9. The adjustment part includes an adjusting rod 5, a connecting arm 6, and a ball joint 7. The adjusting rod 5 has an external thread that matches the internal threaded hole 9. One end of the adjusting rod 5 is fixed with the connecting arm 6. The connecting arm 6 is a cylinder with a diameter larger than that of the adjusting rod 5. The upper part of the connecting end of the connecting arm 6 is provided with four blind holes 10 symmetrically arranged in pairs. Inserting a round pin can rotate the adjusting rod 5, thereby adjusting the height. The other end of the connecting arm 6 is integrated with the ball joint 7. The ball joint 7 abuts against the base 2 to support and level the base 2.

[0005] The base 2 has a disc-shaped structure. The upper surface of the base 2 has several annular grooves 21, with a distance of 30mm between adjacent annular grooves 21. Simultaneously, the upper surface of the base 2 also has eight elongated grooves 22, intersecting the annular grooves 21, evenly spaced circumferentially. These elongated grooves 22 are fan-shaped, gradually widening from the center of the base 2 towards the edge. The depth of the annular grooves 21 and the elongated grooves 22 is 3mm.

[0006] The lower surface of the base 2 has three spherical holes 11 arranged in a circular array relative to the center of the base 2. The radius of the spherical holes 11 is slightly larger than the radius of the spherical connector 7, and the depth is less than the depth of the spherical connector 7. The radius of the spherical connector 7 is SR20mm, and the radius of the spherical holes 11 on the base 2 is SR21mm, with the center of the sphere located 5mm outside the lower surface of the base 2. Because the spherical connector 7 and the spherical holes 11 have a small-gap spherical fit, the base 2 can self-center to achieve a horizontal position.

[0007] Preferably, the spherical connector 7 and the base 2 are made of metal, which not only has good rigidity and load-bearing capacity, but also has high processing precision and low wear.

[0008] This invention offers the following advantages: Through its rationally designed center and base, it achieves stable gear positioning during the testing process, reducing shaking and displacement, and improving the accuracy of the test results. The center allows for easy adjustment of the gear's end face to be parallel to the testing platform, meeting the benchmark requirements for precise positioning, greatly improving testing efficiency, and eliminating impact without damaging the gears or the instrument. The process of installing and removing the center is simple and quick, reducing time and manpower consumption and improving testing efficiency. The annular groove and long through groove on the base reduce friction. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the top structure of this utility model.

[0011] Figure 3 This is a three-dimensional structural diagram of the top seat of this utility model.

[0012] Figure 4 This is a three-dimensional structural diagram of the adjustment part of this utility model.

[0013] Figure 5 This is a schematic diagram of the base structure of this utility model.

[0014] Figure 6 yes Figure 5 A side view structural diagram.

[0015] In the diagram: 1. Top; 2. Base; 3. Pad; 4. Top seat; 5. Adjusting rod; 6. Connecting arm; 7. Spherical connector; 8. Cylindrical sleeve; 9. Internal threaded hole; 10. Blind hole; 11. Spherical hole; 20. Gear; 21. Annular groove; 22. Long through groove. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0017] Example 1: A tooling for adjusting the detection of gears of various specifications, including a center 1, a base 2, and a shim 3. The height of the center 1 can be adjusted according to the size of the gear. It includes a top seat 4 and an adjustment part. The lower part of the top seat 4 is a U-shaped rectangular base with through holes on both sides for mounting and fixing. The upper center of the top seat 4 is a cylindrical sleeve 8, and both the top seat 4 and the cylindrical sleeve 8 are provided with through internal threaded holes 9. The adjustment part includes an adjustment rod 5, a connecting arm 6, and a ball joint 7. The adjusting rod 5 has an external thread that mates with the internal threaded hole 9. One end of the adjusting rod 5 is fixed with a connecting arm 6, which is a cylinder with a diameter larger than that of the adjusting rod 5. The upper part of the connecting arm 6, which is connected to the adjusting rod 5, is provided with four symmetrical blind holes 10. Inserting a round pin allows the adjusting rod 5 to be rotated, thereby adjusting the height. The other end of the connecting arm 6 is integrally formed with a spherical connector 7. The spherical connector 7 has a sphere radius of SR20mm and rests against the base 2 to support the leveling base 2.

[0018] The base 2 has a disc-shaped structure. The upper surface of the base 2 has several annular grooves 21, with a distance of 30mm between adjacent annular grooves 21. Simultaneously, the upper surface of the base 2 also has eight elongated slots 22, intersecting the annular grooves 21, evenly spaced circumferentially. These elongated slots 22 are fan-shaped, gradually widening from the center of the base 2 towards the edge. The depth of the annular grooves 21 and elongated slots 22 is 3mm. The lower surface of the base 2 has three spherical holes 11 arranged in a circular array relative to the center of the base 2. The radius of the sphere in each spherical hole 11 is SR21mm. The spherical connector 7 and the base 2 are made of metal, which not only provides good rigidity and load-bearing capacity but also high machining precision and low wear.

[0019] During actual testing, the top seats 4 of the three tips 1 are placed in the three equally divided grooves on the outside of the spindle of the working platform of the gear tester. The three spherical holes 11 of the base 2 are respectively abutted in the spherical connectors 7 of the three tips 1. The center of the base 2 is adjusted to align with the center of the working platform for rough positioning. Three equal-height shims 3 are equally divided on the front of the base 2. The gear 20 is hoisted and placed on the shims 3. The shims 3 are located at the lower part of the outer periphery of the gear 20, and the gear 20 is placed at the midpoint of the base 2. During adjustment, the round pin is inserted into the blind hole 10 of the connecting arm 6 of the tip 1. The round pin is rotated, and the height of the tip 1 is adjusted by the engagement of the lower part of the adjusting rod 5 with the internal thread hole 9. The spherical connectors 7 of the tip 1 abut in the spherical holes 11 of the base 2, so that the end face of the gear 20 is parallel to the testing platform.

Claims

1. A tooling for adjusting the detection of gears of various sizes, characterized in that, The application relates to a centering device, which comprises a centering tip (1), a base (2) and a spacer (3), wherein the centering tip (1) comprises a base (4) and an adjusting part, the base (4) is a concave rectangular base, two sides of the rectangular base are provided with through holes for fixing, the center of the upper part of the base (4) is a cylindrical sleeve (8), the base (4) and the cylindrical sleeve (8) are provided with a through inner threaded hole (9), the adjusting part comprises an adjusting rod (5), a connecting arm (6) and a spherical connector (7), the adjusting rod (5) is provided with an outer thread matched with the inner threaded hole (9), one end of the adjusting rod (5) is fixed with the connecting arm (6), the connecting arm (6) is a cylinder with a larger diameter than the adjusting rod (5), the upper part of the connecting arm (6) is provided with four symmetrical blind holes (10) on two sides of the connecting end of the adjusting rod (5), the other end of the connecting arm (6) is integrated with the spherical connector (7); The base (2) is a disc-shaped structure, a plurality of annular grooves (21) are formed in the upper surface of the base (2), meanwhile, eight long through grooves (22) crossing the annular grooves (21) are uniformly and intervally formed in the circumferential direction of the upper surface of the base (2), the long through grooves (22) are fan-shaped and gradually expand from the center of the base (2) to the edge; three spherical holes (11) are arranged in the lower surface of the base (2) in a ring array relative to the center of the base (2), the spherical radius of the spherical holes (11) is slightly larger than the spherical radius of the spherical connector (7), and the depth of the spherical holes (11) is smaller than the depth of the spherical connector (7).

2. The tooling for adjusting the detection of gears of various sizes of claim 1, wherein, The spherical radius of the spherical connector (7) is SR20mm, the spherical radius of the spherical hole (11) in the base (2) is SR21mm, and the spherical center is located outside the lower surface of the base (2) by 5mm.

3. The tooling for adjusting the detection of gears of various sizes of claim 1, wherein, The depth of the annular grooves (21) and the long through grooves (22) is 3mm.

4. The tooling for adjusting the detection of gears of various sizes of any one of claims 1-3, wherein, The spherical connector (7) and the base (2) are made of metal.

5. The tooling for adjusting the detection of gears of various sizes of any one of claims 1-3, wherein, The distance between two adjacent annular grooves (21) is 30mm.

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