Tool for checking phase angle deviation of splines at two ends of spline shaft

Abstract

The utility model belongs to the technical field of spline shaft inspection tools, and particularly relates to a spline shaft two-end spline phase angle deviation inspection tool which comprises a first flange plate and a second flange plate. The inner hole diameter of the second flange plate is matched with the outer circle diameter of the right end of the spline shaft in an embedded mode, the inner hole diameter of the first flange plate is fixedly provided with a first guide block matched with a notch in the left end of the spline shaft, and the inner hole diameter of the second flange plate is fixedly provided with a second guide block matched with a notch in the right end of the spline shaft. A first detection tube is fixed on the side of the first flange plate, and a second detection tube is fixed on the side of the second flange plate. The two flange plates are nested at two ends of the spline shaft to be detected through the inner holes, the guide blocks are embedded into the spline grooves, and if the telescopic detection guide rod extends forwards in the first detection pipe and is smoothly inserted into the opening at the left end of the second detection pipe, the phase angles of the tooth grooves at two ends of the spline shaft are the same, so that the detection is fast and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of spline shaft inspection tooling, in particular to a spline phase angle deviation inspection tooling at both ends of a spline shaft. Background Art

[0002] The spline shaft is a widely used transmission workpiece, which is widely used in the transmission devices of automobiles and engineering machinery. The phase angle deviation of the splines at both ends of the spline shaft will affect the accuracy and use of the spline shaft; therefore, the phase angle deviation of the splines at both ends of the spline shaft should be checked; Patent CN213515577U discloses a spline phase angle deviation inspection device at both ends of the spline shaft, including a bottom plate, a fixed measuring block is fixedly connected to the top of the bottom plate, a slide groove is provided on the upper surface of the bottom plate, a slider is movably connected in the slide groove, a mounting plate is fixedly connected to the top of the slider, and a mounting plate is provided on one side of the mounting plate. There is a mounting hole, in which a rotating shaft is movably connected, one end of the rotating shaft is fixedly connected to a support frame, one end of the support frame is fixed with a movable measuring block by a bolt, one side of the fixed measuring block and the movable measuring block is provided with an inner spline groove, and a spline shaft body is arranged in the inner spline groove; according to analysis, this device for checking the spline phase angle deviation at both ends of the spline shaft has the following deficiencies: first, the operation of this device for checking the spline phase angle deviation at both ends of the spline shaft is cumbersome when detecting the spline shaft; second, the accuracy of this device for checking the spline phase angle deviation at both ends of the spline shaft is insufficient when detecting the spline shaft. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a tool for checking the phase angle deviation of splines at both ends of a spline shaft, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A tool for checking the phase angle deviation of the splines at both ends of a spline shaft, comprising a first flange plate and a second flange plate, wherein the inner aperture of the first flange plate is matched and fitted with the outer diameter of the left end of the spline shaft, and the inner aperture of the second flange plate is matched and fitted with the outer diameter of the right end of the spline shaft, the inner aperture of the first flange plate is fixedly provided with a first guide block matched with the notch at the left end of the spline shaft, and the inner aperture of the second flange plate is fixedly provided with a second guide block matched with the notch at the right end of the spline shaft, a first detection tube is fixed on the side of the first flange plate, and a second detection tube is fixed on the side of the second flange plate, the distance between the center of the first detection tube and the center of the first flange plate is A, and the distance between the center of the second detection tube and the center of the second flange plate is B, and A is set equal to B;

[0008] A telescopic detection guide rod is movably embedded in the first detection tube, and the outer diameter of the telescopic detection guide rod is the same as the inner hole diameter of the second detection tube; the center of the inner hole of the first flange plate, the center point of the first guide block and the center of the inner hole of the first detection tube are located in the same straight line, and the center of the inner hole of the second flange plate, the center point of the second guide block and the center of the inner hole of the second detection tube are located in the same straight line.

[0009] Furthermore, a first axial conduit is fixedly provided at the right end of the first flange plate, and the inner diameter of the first axial conduit is clearance matched with the outer diameter of the left end of the spline shaft; a second axial conduit is fixedly provided at the left end of the second flange plate, and the inner diameter of the second axial conduit is clearance matched with the outer diameter of the right end of the spline shaft.

[0010] Furthermore, an expansion groove is provided in the middle of the first guide block and the second guide block, a cone head nut is provided at one end of the first guide block and the second guide block through a cone mouth, and a cone cap screw is inserted through the other end of the first guide block and the second guide block through the cone mouth, and the cone cap screw is adapted to be screwed with the cone head nut.

[0011] Furthermore, the inner diameter of the first axial conduit is C, the outer diameter of the left end of the spline shaft is c, and c is set to be ≤0.01MM--0.1MM≤C; the inner diameter of the second axial conduit is D, the outer diameter of the right end of the spline shaft is d, and d is set to be ≤0.01MM--0.1MM≤D.

[0012] Furthermore, the contact portion between the first detection tube and the first flange plate and the contact portion between the second detection tube and the second flange plate are both fixedly provided with an end surface contact platform.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a tool for checking the phase angle deviation of the splines at both ends of a spline shaft, which has the following beneficial effects:

[0015] The utility model only needs to embed two flange plates through their inner holes at the two ends of the spline shaft to be detected, and let the guide block be embedded in the spline groove. If the telescopic detection guide rod extends forward in the first detection tube and smoothly inserts into the opening at the left end of the second detection tube, the phase angles of the tooth grooves at the two ends of the spline shaft are the same, so the detection is fast and efficient.

[0016] The utility model has expansion grooves in the middle of the two guide blocks, one end of the two guide blocks is provided with a cone head nut through a conical opening, and the other end is inserted with a cone cap screw through the conical opening, and the cone cap screw is screwed into the cone head nut by turning the cone cap screw, so that the grooves corresponding to the two sides of the two guide blocks are fastened and engaged with each other, and accurate detection can be carried out at this time, thereby improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front side of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the rear side of the second flange plate of the utility model;

[0019] Figure 3 It is a side sectional schematic diagram of the main structure of the utility model;

[0020] Figure 4 This is an axial schematic diagram of the first guide block of the utility model;

[0021] Figure 5 It is a side sectional view of the first guide block of the utility model.

[0022] In the figure: 1, first flange plate; 11, first guide block; 12, first detection tube; 13, first axial guide tube;

[0023] 2. second flange plate; 21. second guide block; 22. second detection tube; 23. second axial guide tube;

[0024] 3. Telescopic detection guide rod; 4. Expansion groove; 5. Cone head nut; 6. Cone cap screw. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] like Figure 1 , 2 As shown in , 3, 4 and 5, a tool for checking the phase angle deviation of the splines at both ends of a spline shaft proposed in an embodiment of the utility model comprises a first flange plate 1 and a second flange plate 2, the inner aperture of the first flange plate 1 is adapted to fit with the outer diameter of the left end of the spline shaft, the inner aperture of the second flange plate 2 is adapted to fit with the outer diameter of the right end of the spline shaft, the inner aperture of the first flange plate 1 is fixedly provided with a first guide block 11 adapted to the notch at the left end of the spline shaft, the inner aperture of the second flange plate 2 is fixedly provided with a second guide block 21 adapted to the notch at the right end of the spline shaft, a first detection tube 12 is fixed to the side of the first flange plate 1, a second detection tube 22 is fixed to the side of the second flange plate 2, the distance between the center of the first detection tube 12 and the center of the first flange plate 1 is A, the distance between the center of the second detection tube 22 and the center of the second flange plate 2 is B, and A is set equal to B;

[0028] A telescopic detection guide rod 3 is movably engaged in the first detection tube 12, and the outer diameter of the telescopic detection guide rod 3 is the same as the inner diameter of the second detection tube 22; the center of the inner hole of the first flange plate 1, the center point of the first guide block 11 and the center of the inner hole of the first detection tube 12 are located in the same straight line, and the center of the inner hole of the second flange plate 2, the center point of the second guide block 21 and the center of the inner hole of the second detection tube 22 are located in the same straight line.

[0029] In this embodiment, the first flange plate 1 is embedded in the left end of the spline shaft to be tested through its inner hole, and the first guide block 11 is embedded in the notch at the left end of the spline shaft. At this time, the first detection tube 12 points to the right end of the spline shaft. The second flange plate 2 is embedded in the right end of the spline shaft to be tested through its inner hole, and the second guide block 21 is embedded in the notch at the right end of the spline shaft. At this time, the second detection tube 22 points to the left end of the spline shaft;

[0030] Because the distance between the center of the first detection tube 12 and the center of the first flange plate 1 is A, and the distance between the center of the second detection tube 22 and the center of the second flange plate 2 is B, and A is set equal to B, the first detection tube 12 and the second detection tube 22 are in a concentric state under an ideal state. At this time, the telescopic detection guide rod 3 is extended and retracted back and forth in the first detection tube 12. If the right end of the telescopic detection guide rod 3 can be smoothly inserted into the opening at the left end of the second detection tube 22, it indicates that the phase angle of the tooth groove at the left end of the spline shaft is the same as the phase angle of the tooth groove at the right end. At this time, the spline shaft is standard, otherwise the spline shaft is non-standard, and the detection operation is simple, fast and efficient.

[0031] Furthermore, a first axial conduit 13 is fixedly provided at the right end of the first flange plate 1, and the inner diameter of the first axial conduit 13 is clearance matched with the outer diameter of the left end of the spline shaft. A second axial conduit 23 is fixedly provided at the left end of the second flange plate 2, and the inner diameter of the second axial conduit 23 is clearance matched with the outer diameter of the right end of the spline shaft.

[0032] In this embodiment, the first axial conduit 13 is loosely nested in the outer circle of the left end of the spline shaft, so that the first flange plate 1 and the first detection tube 12 will not swing up and down when the left end of the spline shaft moves. Similarly, the second axial conduit 23 is loosely nested in the outer circle of the right end of the spline shaft, so that the second flange plate 2 and the second detection tube 22 will not swing up and down when the right end of the spline shaft moves, thereby ensuring the concentricity of the inner hole of the first detection tube 12 and the inner hole of the second detection tube 22.

[0033] Furthermore, an expansion groove 4 is provided in the middle of the first guide block 11 and the second guide block 21, and a cone head nut 5 is provided at one end of the first guide block 11 and the second guide block 21 through a cone mouth, and a cone cap screw 6 is inserted through the other end of the first guide block 11 and the second guide block 21 through the cone mouth, and the cone cap screw 6 is adapted to be threaded with the cone head nut 5.

[0034] In this embodiment, during detection, it is necessary to ensure that the first guide block 11 is fastened on both sides to fit in the notch at the left end of the spline shaft, and at the same time, it is necessary to ensure that the second guide block 21 is fastened on both sides to fit in the notch at the right end of the spline shaft, so that accurate detection results can be obtained; so at this time, the cone cap screw 6 can be screwed into the cone head nut 5, so that the first guide block 11 and the second guide block 21 are opened outward through the expansion groove 4 in the middle, until the first guide block 11 is fastened to fit in the notch at the left end of the spline shaft, and the second guide block 21 is fastened to fit in the notch at the right end of the spline shaft, at this time, the spline phase angle deviation at both ends of the spline shaft can be accurately detected.

[0035] Furthermore, the inner diameter of the first axial conduit 13 is C, the outer diameter of the left end of the spline shaft is c, and c is set to 0.01MM--0.1MM≤C; the inner diameter of the second axial conduit 23 is D, the outer diameter of the right end of the spline shaft is d, and d is set to 0.01MM--0.1MM≤D.

[0036] Therefore, the first axial guide tube 13 can drive the first flange plate 1 and the first detection tube 12 to move at the left end of the spline shaft, and ensure coaxiality during movement; the second axial guide tube 23 can drive the second flange plate 2 and the second detection tube 22 to move at the right end of the spline shaft, and ensure coaxiality during movement.

[0037] Furthermore, the contact portion between the first detection tube 12 and the first flange plate 1 and the contact portion between the second detection tube 22 and the second flange plate 2 are both fixedly provided with end surface contact platforms.

[0038] The end surface contact table can ensure that the first detection tube 12 is vertically connected to the first flange plate 1, and the second detection tube 22 is vertically connected to the second flange plate 2, so that the axis line of the first detection tube 12 is parallel to the axis line of the second detection tube 22. In this state, the detection result is true.

[0039] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tool for checking phase angle deviation of splines at both ends of a spline shaft, comprising a first flange plate (1) and a second flange plate (2), characterized in that: The inner diameter of the first flange plate (1) is matched with the outer diameter of the left end of the spline shaft, and the inner diameter of the second flange plate (2) is matched with the outer diameter of the right end of the spline shaft. The inner diameter of the first flange plate (1) is fixedly provided with a first guide block (11) matched with the notch at the left end of the spline shaft, and the inner diameter of the second flange plate (2) is fixedly provided with a second guide block (21) matched with the notch at the right end of the spline shaft. A first detection tube (12) is fixed on the side of the first flange plate (1), and a second detection tube (22) is fixed on the side of the second flange plate (2). The distance between the center of the first detection tube (12) and the center of the first flange plate (1) is A, and the distance between the center of the second detection tube (22) and the center of the second flange plate (2) is B, and A is set equal to B. A telescopic detection guide rod (3) is movably engaged in the first detection tube (12); the outer diameter of the telescopic detection guide rod (3) is the same as the inner diameter of the second detection tube (22); the center of the inner hole of the first flange plate (1), the center point of the first guide block (11) and the center of the inner hole of the first detection tube (12) are located in the same straight line; the center of the inner hole of the second flange plate (2), the center point of the second guide block (21) and the center of the inner hole of the second detection tube (22) are located in the same straight line.

2. A tool for checking phase angle deviation of splines at both ends of a spline shaft according to claim 1, characterized in that: A first axial conduit (13) is fixedly provided at the right end of the first flange plate (1), and the inner diameter of the first axial conduit (13) is clearance matched with the outer diameter of the left end of the spline shaft; a second axial conduit (23) is fixedly provided at the left end of the second flange plate (2), and the inner diameter of the second axial conduit (23) is clearance matched with the outer diameter of the right end of the spline shaft.

3. The tool for checking phase angle deviation of splines at both ends of a spline shaft according to claim 1, characterized in that: An expansion groove (4) is provided in the middle of the first guide block (11) and the second guide block (21); one end of the first guide block (11) and the second guide block (21) is provided with a cone head nut (5) through a cone mouth; the other end of the first guide block (11) and the second guide block (21) is inserted with a cone cap screw (6) through the cone mouth; the cone cap screw (6) is adapted to be screwed with the cone head nut (5).

4. The tool for checking phase angle deviation of splines at both ends of a spline shaft according to claim 2, characterized in that: The inner diameter of the first axial conduit (13) is C, the outer diameter of the left end of the spline shaft is c, and c is set to be 0.01MM--0.1MM≤C; the inner diameter of the second axial conduit (23) is D, the outer diameter of the right end of the spline shaft is d, and d is set to be 0.01MM--0.1MM≤D.

5. The tool for checking phase angle deviation of splines at both ends of a spline shaft according to claim 1, characterized in that: The contact portion between the first detection tube (12) and the first flange plate (1) and the contact portion between the second detection tube (22) and the second flange plate (2) are both fixedly provided with an end surface contact platform.

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