Detection tool for ball span of external spline of fan-shaped shaft

Abstract

The utility model provides a fan-shaped shaft external spline cross-ball distance testing fixture which comprises a measuring platform, a fan-shaped shaft, a cross-ball distance detection micrometer, a height detection ruler and a connecting assembly, the fan-shaped shaft is vertically placed on the measuring platform, the external spline of the fan-shaped shaft is provided with taper, and the cross-ball distance detection micrometer is connected with the height detection ruler. A first spherical contact head of a micrometric screw of the fan-shaped shaft external spline addendum circle and cross-ball distance detection micrometer and a second spherical contact head of a spiral adjusting measuring anvil are connected, the cross-ball distance detection micrometer is connected with a height detection ruler through a connecting assembly, and the height detection ruler is locked on the measuring platform. The fan-shaped shaft external spline ball span gauge is simple in overall design, convenient to operate, rapid in measurement process, time-saving and capable of improving production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, especially relates to a fan -shaped axle outer spline cross ball distance testing fixture. BACKGROUND

[0002] The cross ball distance (also known as cross ball diameter or cross ball distance) of the outer spline of the fan-shaped shaft is the distance between two adjacent teeth on the spline tooth top circle, which is determined by the center line of the two balls. This parameter is very important for ensuring the correct engagement and transmission accuracy of the spline.

[0003] At present, the cross ball distance testing fixture for measuring the outer spline of the fan-shaped shaft needs to be manually operated by the operator, but errors may still occur due to the difference of the operator during the operation process, and the outer spline of the fan-shaped shaft product has a taper, so that the diameters of the measuring points at the same position are different, which affects the accuracy of the measurement results. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a fan-shaped axle outer spline cross ball distance testing fixture to solve the problem that the cross ball distance testing fixture for measuring the outer spline of the fan-shaped shaft needs to be manually operated by the operator, but errors may still occur due to the difference of the operator during the operation process, and the outer spline of the fan-shaped shaft product has a taper, so that the diameters of the measuring points at the same position are different, which affects the accuracy of the measurement results.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] The utility model provides a fan-shaped axle outer spline cross ball distance testing fixture, include, measuring platform, fan-shaped axle, cross ball distance detection micrometer, height detection ruler, connecting component, the fan-shaped axle is placed vertically on the measuring platform, the outer spline of the fan-shaped axle has a taper, the spline tooth top circle of the fan-shaped axle outer spline is in contact with the first spherical contact head of the micrometer screw rod and the second spherical contact head of the spiral adjusting anvil, the cross ball distance detection micrometer is connected with the height detection ruler through the connecting component, and the height detection ruler is locked on the measuring platform.

[0007] Further, the cross ball distance detection micrometer is provided with a cross ball distance LCD screen, a micrometer screw, a screw adjusting anvil, a first locking bolt, a semi-arc fixing plate and an arc ruler frame, the cross ball distance LCD screen is fixed on the main ruler of the cross ball distance detection micrometer, the micrometer screw is fixed on the top of the main ruler, a first spherical contact head is arranged on the top of the micrometer screw, the first spherical contact head abuts against the tooth top circle of one tooth of the fan shaft, the screw adjusting anvil is spirally fixed on the semi-arc fixing plate, the semi-arc fixing plate is connected with the arc ruler frame connected with the main ruler through a connecting assembly, a second spherical contact head is arranged on the bottom of the screw adjusting anvil, the second spherical contact head abuts against the tooth top circle of the tooth on the opposite side of the fan shaft, and the top of the screw adjusting anvil is provided with a hexagonal head.

[0008] Further, the height detection device comprises a first fixing seat, a rotating handle, a second fixing seat, a height display screen, a moving seat and a guide column, the second fixing seat is fixed on the measuring platform through bolts, the first fixing seat is connected with the second fixing seat through the guide column, the guide column is symmetrically arranged with the center line of the first fixing seat, the moving seat is arranged on the back of the height display screen, the moving seat is connected with the rotating handle, the rotating handle is connected with the moving seat through a bearing, a gear is fixed on the rotating handle, the gear is engaged with the tooth shape on the two guide columns, and the side surface of the moving seat is connected with a connecting assembly.

[0009] Further, the connecting assembly comprises a first locking bolt, a connecting groove plate, a connecting seat, a second locking bolt and a bent fixing frame, the semi-arc fixing plate and the arc ruler frame are connected with the connecting groove plate through the first locking bolt, the groove width of the middle part of the connecting groove plate is matched with the semi-arc fixing plate and the arc ruler frame, the middle connecting hole of the connecting seat is connected with the connecting groove plate on one side and connected with the bent fixing frame on the other side, the second locking bolt locks the third bent section of the connecting groove plate and the bent fixing frame, the bent fixing frame is divided into a vertical connecting section and a horizontal connecting section from top to bottom, the vertical connecting section is fixed with the moving seat, and the horizontal connecting section is locked in the connecting seat.

[0010] Further, a plurality of threaded holes are arranged on the connecting groove plate and used for penetrating the first locking bolt.

[0011] Compared with the prior art, the fan shaft outer spline cross ball distance gauge has the following advantages: the fan shaft outer spline cross ball distance gauge is simple in overall design, convenient to operate, fast in the measuring process, time-saving and high in production efficiency. The gauge is suitable for various fan shafts with different sizes and shapes, has high universality, can measure not only the cross ball distance but also the height of the fan shaft through the height detection ruler, realizes comprehensive measurement of multiple parameters, and the readings of the cross ball distance detection micrometer and the height detection ruler are intuitive and convenient to record. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings, which form a part of this patent, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and serve to explain the

[0013] In the drawings:

[0014] Figure 1 An internal shaft side schematic view of the fan-shaped shaft outer spline cross-ball pitch gauge according to the embodiments of the present application;

[0015] Figure 2 A front view schematic view of the fan-shaped shaft outer spline cross-ball pitch gauge according to the embodiments of the present application;

[0016] Figure 3 A top view schematic view of the fan-shaped shaft outer spline cross-ball pitch gauge according to the embodiments of the present application;

[0017] Figure 4 A back view schematic view of the height detection ruler of the fan-shaped shaft outer spline cross-ball pitch gauge according to the embodiments of the present application.

[0018] BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 1, cross-ball pitch liquid crystal display screen; 2, micrometer screw; 3, fan-shaped shaft; 4, screw adjusting anvil; 5, measuring platform; 6, first locking bolt; 7, connecting groove plate; 8, half-arc fixed plate; 9, arc ruler frame; 10, connecting seat; 11, second locking bolt; 12, first fixed seat; 13, rotating handle; 14, second fixed seat; 15, bent fixed frame; 16, height display screen; 17, guide stand. DETAILED DESCRIPTION

[0020] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0022] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0023] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0024] Referring to Figures 1-4 As shown in the figure, the embodiment provides a fan-shaped shaft outer spline cross ball pitch gauge, which comprises a measuring platform 5, a fan-shaped shaft 3, a cross ball pitch detection micrometer, a height detection ruler and a connecting assembly. The fan-shaped shaft 3 is vertically placed on the measuring platform 5, and the outer spline of the fan-shaped shaft 3 is tapered. The tooth top circle of the outer spline of the fan-shaped shaft 3 is in contact with the first spherical contact head of the micrometer screw rod 2 of the cross ball pitch detection micrometer and the second spherical contact head of the spiral adjusting anvil 4. The cross ball pitch detection micrometer and the height detection ruler are connected through the connecting assembly, and the height detection ruler is locked on the measuring platform 5.

[0025] Specifically, in this embodiment, the cross ball distance detection micrometer is provided with a cross ball distance liquid crystal display screen 1, a micrometer screw 2, a screw adjusting anvil 4, a first locking bolt 6, a semicircular fixed plate 8, and an arc-shaped ruler frame 9. The cross ball distance liquid crystal display screen 1 is fixed on the main ruler of the cross ball distance detection micrometer. The micrometer screw 2 is fixed on the top of the main ruler. The top of the micrometer screw 2 is provided with a first spherical contact head which is in contact with the tooth top circle of one tooth of the sector shaft 3. The screw adjusting anvil 4 is screw-fixed on the semicircular fixed plate 8. The semicircular fixed plate 8 is connected with the arc-shaped ruler frame 9 on the main ruler through a connecting assembly. The bottom of the screw adjusting anvil 4 is provided with a second spherical contact head which is in contact with the tooth top circle of the tooth on the opposite side of the sector shaft 3. The top of the screw adjusting anvil 4 is a hexagonal head.

[0026] Specifically, in this embodiment, the height detection includes a first fixed seat 12, a rotating handle 13, a second fixed seat 14, a height display screen 16, a moving seat, and a guide column 17. The second fixed seat 14 is fixed on the measuring platform 5 through a bolt. The first fixed seat 12 is connected with the second fixed seat 14 through the guide column 17. The guide column 17 is symmetrically arranged with the center line of the first fixed seat 12. The moving seat is arranged on the back of the height display screen 16. The moving seat is connected with the rotating handle 13. The rotating handle 13 is connected with the moving seat through a bearing. A gear is fixed on the rotating handle 13. The gear is engaged with the tooth shape on the two guide columns 17. The side surface of the moving seat is connected with the connecting assembly.

[0027] Specifically, in this embodiment, the connecting assembly includes the first locking bolt 6, a connecting groove plate 7, a connecting seat 10, a second locking bolt 11, and a bent fixed frame 15. The semicircular fixed plate 8 and the arc-shaped ruler frame 9 are connected with the connecting groove plate 7 through the first locking bolt 6. The groove width in the middle of the connecting groove plate 7 is adapted to the semicircular fixed plate 8 and the arc-shaped ruler frame 9. The middle connecting hole of the connecting seat 10 is connected with the connecting groove plate 7 on one side and connected with the bent fixed frame 15 on the other side. The second locking bolt 11 locks the third bent section of the connecting groove plate 7 and the bent fixed frame 15. The bent fixed frame 15 is divided into a vertical connecting section and a horizontal connecting section from top to bottom. The vertical connecting section is fixed with the moving seat. The horizontal connecting section is locked in the connecting seat 10.

[0028] Specifically, in this embodiment, a plurality of threaded holes are arranged on the connecting groove plate 7 for passing through the first locking bolt 6.

[0029] The measurement steps are as follows: (1) clean the measurement platform 5, the sector shaft 3 and the sector shaft outer spline cross ball distance gauge, and ensure that there is no oil stain, dust and other impurities, and fix the height detection ruler on the measurement platform 5 through the locking device; (2) place the sector shaft 3 vertically on the measurement platform 5, and ensure that the tapered portion at the outer spline is upward; (3) align the first spherical contact head of the micrometer screw 2 of the cross ball distance detection micrometer and the second spherical contact head of the screw adjusting anvil 4 with the tooth top circle of the outer spline of the sector shaft 3 respectively, adjust the micrometer screw 2 and the screw adjusting anvil 4, and make the two spherical contact heads in good contact with the tooth top circle of the outer spline; (4) read the reading of the cross ball distance detection micrometer, and record the cross ball distance of the sector shaft 3; (5) read the height position of the tooth groove at the measurement position of the sector shaft 3 through the height detection ruler, and ensure that it meets the detection requirements; (6) record the measurement results of the cross ball distance and the height, and compare them with the design requirements to determine whether they meet the standards.

[0030] The sector shaft outer spline cross ball distance gauge has simple overall design, is convenient to operate, fast in the measurement process, saves time and improves production efficiency. The gauge is suitable for sector shafts of various sizes and shapes, has high universality, can not only measure the cross ball distance, but also measure the height of the sector shaft through the height detection ruler, realizes comprehensive measurement of multiple parameters, and the readings of the cross ball distance detection micrometer and the height detection ruler are intuitive and convenient to record.

[0031] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A fan shaft outer spline cross-pitch gage, characterized by, The utility model relates to a kind of measuring platform, fan-shaped shaft, cross ball distance detection micrometer, height detection ruler, connecting assembly, the fan-shaped shaft (3) is vertically placed on the measuring platform (5), the outer spline of the fan-shaped shaft (3) is tapered, the first spherical contact head of micrometer screw (2) and the second spherical contact head of screw adjusting anvil (4) of fan-shaped shaft (3) outer spline tooth top circle are contacted, the cross ball distance detection micrometer is connected with height detection ruler by connecting assembly, and the height detection ruler is locked on the measuring platform (5).

2. The fan-shaped shaft external spline cross-pitch gage of claim 1, wherein, Cross ball distance detection micrometer is equipped with cross ball distance liquid crystal display screen (1), micrometer screw (2), screw adjusting anvil (4), first locking bolt (6), half-arc fixed plate (8), arc ruler frame (9), the cross ball distance liquid crystal display screen (1) is fixed on the main ruler of cross ball distance detection micrometer, the main ruler top is fixed micrometer screw (2), the first spherical contact head is arranged on the top of micrometer screw (2), the first spherical contact head is supported on the tooth top circle of one tooth of fan-shaped shaft (3), screw adjusting anvil (4) is spirally fixed on the half-arc fixed plate (8), the half-arc fixed plate (8) is connected with the arc ruler frame (9) connected on main ruler by connecting assembly, and the second spherical contact head is arranged on the bottom of screw adjusting anvil (4), the second spherical contact head is supported on the tooth top circle of the tooth on the opposite side of fan-shaped shaft (3), and the top of screw adjusting anvil (4) is hexagonal head.

3. The fan-shaft external spline cross-pitch gage of claim 2, wherein, Height detection includes first fixed seat (12), rotating handle (13), second fixed seat (14), height display screen (16), moving seat, guide column (17), the second fixed seat (14) is fixed on measuring platform (5) by bolt, the first fixed seat (12) is connected with the second fixed seat (14) by the guide column (17), the guide column (17) is symmetrically arranged with the midline of the first fixed seat (12), the height display screen (16) back is equipped with moving seat, the moving seat is connected with rotating handle (13), the rotating handle (13) is connected with moving seat by bearing, the rotating handle (13) is fixed with gear, the gear is engaged with the tooth shape on both sides of guide column (17), and the side of moving seat is connected with connecting assembly.

4. The fan-shaped shaft external spline cross-pitch gage of claim 1, wherein, The connecting assembly comprises a first locking bolt (6), a connecting groove plate (7), a connecting seat (10), a second locking bolt (11) and a bent fixing frame (15). The semi-arc fixing plate (8) and the arc ruler frame (9) are connected with the connecting groove plate (7) through the first locking bolt (6). The groove width of the middle part of the connecting groove plate (7) is adapted to the semi-arc fixing plate (8) and the arc ruler frame (9). The middle connecting hole of the connecting seat (10) is connected with the connecting groove plate (7) on one side and connected with the bent fixing frame (15) on the other side. The second locking bolt (11) locks the third bent section of the connecting groove plate (7) and the bent fixing frame (15). The bent fixing frame (15) is divided into a vertical connecting section and a horizontal connecting section from top to bottom. The vertical connecting section is fixed with the moving seat. The horizontal connecting section is locked in the connecting seat (10).

5. The fan-shaped shaft external spline cross-pitch gage of Claim 4, wherein, A plurality of threaded holes are arranged on the connecting groove plate (7) for the first locking bolt (6).

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