Device for detecting addendum angle of automobile gear input shaft

Abstract

The utility model relates to an automobile gear input shaft addendum angle detection device, and belongs to the technical field of automobile part detection equipment. The detection device for the addendum angle of the automobile gear input shaft comprises a bottom plate, a supporting sliding block, a positioning sliding block, a digital display angle gauge, an inner limiting ring, an outer limiting ring and a limiting seat, a limiting seat is fixedly mounted at one end of the bottom plate; the other end of the bottom plate is slidably provided with a positioning sliding block through a sliding groove. A limiting through hole is formed in the middle of the limiting seat; a positioning sliding block is arranged above the limiting through hole through a positioning sliding hole; an inner limiting ring is fixedly arranged on the limiting seat at one end of the inner side of the limiting through hole; and an outer limiting ring is arranged on the limiting seat at one end of the outer side of the limiting through hole through a locking screw rod. According to the automobile gear input shaft addendum angle detection device, the problem that accurate measurement cannot be carried out in a visual inspection mode in an existing detection mode is solved, and the automobile gear input shaft addendum angle detection device is particularly suitable for the use requirement of automobile gear input shaft addendum angle detection.

Description

Technical Field

[0001] The utility model relates to a device for detecting the tooth top angle of an automobile gear input shaft, belonging to the technical field of automobile parts detection equipment. Background Art

[0002] In the field of automobile parts production technology, a plurality of helical teeth 2 are arranged at one end of a gear input shaft 1, a milling plane 3 is arranged at the other end of the gear input shaft 1; spline teeth 4 are arranged on the gear input shaft 1 on both sides of the milling plane 3 (see the attached manual). Figure 2 ). When the milling plane 3 is horizontal, the tooth top angle of the input shaft of the automobile gear is the angle C between the tooth top and the center line at the lower side and the vertical line. At present, the tooth top angle (angle C) is detected by visual inspection using auxiliary measuring tools and the marking method to obtain an approximate range, which cannot be accurately measured. Therefore, it is necessary to develop a new detection device to solve the above problems of the existing detection method. Summary of the invention

[0003] The utility model aims to provide a device for detecting the tooth top angle of an automobile gear input shaft with a compact structure and ingenious design to solve the problem that the existing detection method for the tooth top angle of an automobile gear input shaft cannot accurately measure the tooth top angle.

[0004] The technical solution of the utility model is:

[0005] A device for detecting the tooth top angle of an automobile gear input shaft comprises a base plate, a supporting slider, a positioning slider, a digital display angle meter, an inner limit ring, an outer limit ring and a limit seat; the device is characterized in that: a limit seat is fixedly mounted on one end of the base plate; a supporting slider is slidably mounted on the other end of the base plate through a slide groove; a limit through hole is arranged in the middle of the limit seat; a positioning slider is mounted above the limit through hole through a positioning slide hole; an inner limit ring is fixedly mounted on the limit seat at one end inside the limit through hole; an outer limit ring is mounted on the limit seat at one end outside the limit through hole through a locking screw.

[0006] The top of the supporting sliding block is provided with a V-shaped positioning groove; the bottom of the supporting sliding block is provided with a guiding boss; and the guiding boss is slidably connected with the sliding groove.

[0007] A wedge-shaped positioning groove is arranged in the middle of one end of the positioning sliding block; and positioning protrusions are arranged at the ends of the positioning sliding block on both sides of the wedge-shaped positioning groove.

[0008] The inner limit ring and the outer limit ring are both stepped rotating bodies; a limit hole A is arranged inside the inner limit ring; and a limit hole B is arranged inside the outer limit ring.

[0009] The outer limiting ring is symmetrically provided with limiting slots on both sides; the outer limiting ring is installed at one end of the limiting seat through the limiting slot and the locking screw.

[0010] The advantages of the utility model are:

[0011] The vehicle gear input shaft tooth top angle detection device has a compact structure and ingenious design, and can accurately measure the vehicle gear input shaft tooth top angle, thereby solving the problem of inaccurate measurement in the existing detection method by visual measurement, and is particularly suitable for the needs of vehicle gear input shaft tooth top angle detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the gear input shaft;

[0013] Figure 2 for Figure 1 The structural diagram of the left view in the middle;

[0014] Figure 3 It is a schematic diagram of the structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 5 This is a structural schematic diagram of the positioning slider of the utility model;

[0017] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 7 for Figure 5 Schematic diagram of the end face structure;

[0019] Figure 8 It is a detection schematic diagram of the utility model;

[0020] Fig. 9 This is a schematic diagram of the working state structure of the gear input shaft of the utility model;

[0021] Fig.10 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0022] Fig.11 It is a schematic diagram of the cross-sectional structure of the limit seat of the utility model;

[0023] Fig.12 This is a schematic diagram of the structure of the limit seat of the utility model;

[0024] Fig.13 for Fig.12 Schematic diagram of the enlarged structure at point C in the middle.

[0025] In the figure: 1. gear input shaft; 2. spiral teeth; 3. milling plane; 4. spline teeth; 5. bottom plate; 6. limit seat; 7. slide groove; 8. positioning slide block; 9. limit through hole; 10. positioning slide hole; 11. locking screw; 12. inner limit ring; 13. outer limit ring; 14. V-shaped positioning groove; 15. guide boss; 16. wedge-shaped positioning groove; 17. positioning protrusion; 18. limit hole A; 19. limit hole B; 20. limit slot; 21. support slide block; 22. digital display angle meter. DETAILED DESCRIPTION

[0026] The vehicle gear input shaft tooth top angle detection device comprises a base plate 5, a supporting slide block 21, a positioning slide block 8, a digital display angle meter 22, an inner limit ring 12, an outer limit ring 13 and a limit seat 6 (see the attached manual). Figure 3 ).

[0027] A limit seat 6 is fixedly mounted at one end of the bottom plate 5; a limit through hole 9 is arranged in the middle of the limit through hole 9; a positioning slide block 8 is arranged above the limit through hole 9 through a positioning slide hole 10 (see the attached manual Figure 3 , 4 and 11).

[0028] A wedge-shaped positioning groove 16 is provided in the middle of one end of the positioning slide block 8; positioning protrusions 17 are provided at the ends of the positioning slide block 8 on both sides of the wedge-shaped positioning groove 16 (see the attached manual). Figure 5 and 6 ). The shape of the wedge-shaped positioning groove 16 is consistent with the spiral angle of the spiral teeth 2 on the gear input shaft 1; the purpose of such a setting is that when the gear input shaft 1 is inserted into the interior of the limit seat 6, the positioning slider 8 can be inserted into the interior of the limit seat 6 through the positioning slide hole 10 to engage with the spiral teeth 2 on the gear input shaft 1 to position the gear input shaft 1. In this process, the positioning slider 8 engages with the spiral teeth 2 through the wedge-shaped positioning groove 16 and the positioning protrusion 17, thereby achieving the purpose of positioning the gear input shaft 1 in the radial direction.

[0029] An inner limit ring 12 is fixedly mounted on the limit seat 6 at one end of the inner side of the limit through hole 9. The inner limit ring 12 is a stepped rotating body, and a limit hole A18 is arranged inside the inner limit ring 12 (see the attached manual). Fig.11 ).

[0030] An outer limit ring 13 is mounted on the limit seat 6 at one end of the outer limit through hole 9 through a locking screw 11. The outer limit ring 13 is a stepped rotating body; a limit hole B19 is arranged inside the outer limit ring 13 (see the attached manual Fig.11 ).

[0031] The limiting hole A18 is consistent with the inner end surface structure of the helical tooth 2 of the gear input shaft 1; the limiting hole B19 is consistent with the outer end surface structure of the helical tooth 2 of the gear input shaft 1. When configured in this way, during operation, the outer limiting ring 13 and the inner limiting ring 12 can axially position the gear input shaft 1 by means of abutment connection at both ends of the helical tooth 2.

[0032] The outer limit ring 13 is symmetrically provided with limit slots 20 on both sides; the outer limit ring 13 is installed at one end of the limit seat 6 through the limit slot 20 and the locking screw 11 (see the attached manual). Fig.12 and 13 The outer limiting ring 13 can be detachably mounted on one end of the limiting seat 6 through the limiting slot 20 and the locking screw 11 .

[0033] The other end of the bottom plate 5 is slidably provided with a support slide block 21 (see the appendix of the specification) through the slide groove 7. Figure 3 ); A V-shaped positioning groove 14 is provided on the top of the supporting slide block 21; a guide boss 15 is provided on the bottom of the supporting slide block 21; the guide boss 15 is slidably connected to the slide groove 7 (see the attached manual Fig.10 ).

[0034] During operation, the support slide block 21 can provide support to one end of the gear input shaft 1 through the V-shaped positioning groove 14, thereby achieving the purpose of keeping the gear input shaft 1 horizontal during operation.

[0035] When the vehicle gear input shaft tooth top angle detection device is working, first remove the outer limit ring 13, then insert the gear input shaft 1 to be detected into the inner limit seat 6, so that the inner side of the spiral tooth 2 contacts the limit hole A18 of the inner limit ring 12. At this time, one end of the gear input shaft 1 is placed on the support slider 21 (see the attached manual). Figure 4 ).

[0036] After the gear input shaft 1 is placed, rotate the gear input shaft 1 so that the milling plane 3 is inclined and the spiral teeth 2 are aligned with the positioning slide hole 10 (see the attached manual). Fig. 9 ).

[0037] Then the positioning slide block 8 is inserted into the limiting seat 6, so that the positioning slide block 8 is engaged with the spiral tooth 2 through the wedge-shaped positioning groove 16 and the positioning protrusion 17. At this time, the engaging position of the positioning slide block 8 and the spiral tooth 2 is just located at the midpoint position of the spiral tooth 2.

[0038] After the positioning slide block 8 is installed, the outer limit ring 13 is assembled through the locking screw 11, so that the outer limit ring 13 squeezes the spiral teeth 2 from the outside, thereby achieving the purpose of clamping and fixing the gear input shaft 1 in the axial direction.

[0039] After the above work is completed, first place the digital display angle meter 22 on the upper surface of the limit seat 6 and adjust it to zero. After the digital display angle meter 22 is adjusted to zero, it is placed on the milling plane 3. At this time, the digital display angle meter 22 detects the angle between the milling plane 3 and the horizontal plane, that is, the value of the angle b. The angle a between the milling plane 3 and the center vertical line is known to be 90°. Then, the angle C, that is, the accurate value of the tooth top angle, can be obtained by subtracting the angle b from the angle a. At this point, the tooth top angle detection device has completed all the detection work, and the top angle detection device can enter the next working cycle.

[0040] The tooth top angle detection device for the automobile gear input shaft has a compact structure and an ingenious design. It can accurately measure the tooth top angle of the automobile gear input shaft 1, thereby solving the problem of inaccurate measurement in the existing detection method by visual measurement. The device is particularly suitable for the needs of detecting the tooth top angle of the automobile gear input shaft 1.

Claims

1. A device for detecting the tooth top angle of an automobile gear input shaft, comprising a base plate (5), a supporting slide block (21), a positioning slide block (8), a digital display angle meter (22), an inner limit ring (12), an outer limit ring (13) and a limit seat (6); characterized in that: A limit seat (6) is fixedly mounted on one end of the base plate (5); a support slider (21) is slidably mounted on the other end of the base plate (5) through a slide groove (7); a limit through hole (9) is arranged in the middle of the limit seat (6); a positioning slider (8) is mounted above the limit through hole (9) through a positioning slide hole (10); an inner limit ring (12) is fixedly mounted on the limit seat (6) at one end inside the limit through hole (9); an outer limit ring (13) is mounted on the limit seat (6) at one end outside the limit through hole (9) through a locking screw (11).

2. The device for detecting tooth top angle of an automobile gear input shaft according to claim 1, characterized in that: The top of the supporting sliding block (21) is provided with a V-shaped positioning groove (14); the bottom of the supporting sliding block (21) is provided with a guiding boss (15); and the guiding boss (15) is slidably connected to the sliding groove (7).

3. The device for detecting tooth top angle of an automobile gear input shaft according to claim 1, characterized in that: A wedge-shaped positioning groove (16) is provided in the middle of one end of the positioning slide block (8); and positioning protrusions (17) are provided at the ends of the positioning slide block (8) on both sides of the wedge-shaped positioning groove (16).

4. The device for detecting tooth top angle of an automobile gear input shaft according to claim 1, characterized in that: The inner limit ring (12) and the outer limit ring (13) are both stepped rotating bodies; a limit hole A (18) is arranged inside the inner limit ring (12); and a limit hole B (19) is arranged inside the outer limit ring (13).

5. The device for detecting tooth top angle of an automobile gear input shaft according to claim 4, characterized in that: The outer limiting ring (13) is symmetrically provided with limiting grooves (20) on both sides; the outer limiting ring (13) is installed on one end of the limiting seat (6) through the limiting groove (20) and the locking screw (11).

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