Measuring tool for measuring distance from end face tooth to boss end face of VL type universal joint starlike sleeve

Abstract

The utility model discloses a measuring tool for measuring the distance from an end face tooth of a VL type universal joint starlike sleeve to a boss end face, which is used for measuring the distance from the end face tooth of the VL type universal joint starlike sleeve to the boss end face of a central boss, and comprises a base, a measuring lever assembly, a dial indicator assembly and a measuring reference block assembly, the dial indicator assembly and the measuring reference block assembly are respectively positioned on two sides of the measuring lever assembly; the measuring reference block assembly comprises a measuring reference block base, the star-shaped sleeve is supported on the measuring reference block base, the measuring reference block base is arranged on the base in an overhead mode, and the measuring reference block base is provided with a first center through hole used for allowing a center boss of the star-shaped sleeve to be placed in so that the end face of the boss can touch the first end of the measuring lever assembly. The measuring lever assembly is driven to rotate, so that the second end of the measuring lever assembly drives the dial indicator assembly to generate a measuring result. The device is simple in measurement and judgment method, high in detection speed and low in skill requirement for detection personnel.

Description

Technical Field

[0001] The utility model belongs to the technical field of non-standard measuring tools for mechanical processing, in particular to a measuring tool for measuring the distance from the end face tooth to the end face of a boss of a VL-type universal joint star sleeve. Background Art

[0002] The end face gear universal shaft is composed of an inner sleeve coupling, an outer sleeve coupling and gears at both ends. The inner sleeve coupling is provided with a fixed rolling frame, and the gear of the outer sleeve coupling meshes with the gear of the inner sleeve coupling. The important feature of the end face gear universal shaft is that it adopts the design of the end face gear. When the tooth surface is meshed, there is no shaking and impact of ordinary gears, which reduces the transmission error and improves the transmission efficiency. The end face gear universal shaft has a compact structure: under the same torque, the end face gear universal shaft is more compact than the traditional rotary universal joint, which can reduce the design space and conform to the development trend of modern mechanical transmission. At the same time, the end face gear universal shaft works smoothly: the end face gear universal shaft has a simple structure, which is more stable and works smoothly compared with the traditional universal joint structure. The end face gear universal shaft has high transmission efficiency: the end face gear universal shaft adopts the end face gear transmission, and there is no shaking and impact when the tooth surface is meshed, unlike ordinary gears, and the transmission efficiency is higher.

[0003] Please refer to the attached Figure 1 and Figure 2 The star sleeve (also called outer star wheel) 10 of the telescopic ball cage type constant velocity (also called VL type) universal joint is connected to the end face teeth of the hub end by the end face teeth 11. Specifically, the star sleeve 10 has an end face for connecting with the end face of the hub, and the end face teeth 11 are arranged around the end face of the star sleeve 10; and the central part of the end face is provided with a center boss 12 extending in the direction of the end face, and the center boss 12 has a boss end face 13 and a center centering outer circle 14. Since the end face teeth 11 are formed by forging, and the center centering outer circle 14 and the boss end face 13 are machined, it is necessary to measure the distance D from the end face teeth 11 to the boss end face 13. When measuring, the measuring tool should support the end face teeth 11 and position the measuring tool along the tooth normal on the circumference. The existing measurement method generally adopts three-coordinate detection, which has high skill requirements for the detection personnel, slow detection speed, high equipment cost, and cannot be applied to the rapid measurement application in the production site environment. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and provide a measuring tool for the distance from the end face tooth to the end face of the boss of a universal joint star sleeve, which has low skill requirements for detection personnel, fast detection speed, low equipment cost, and can be suitable for rapid measurement applications in production site environments.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0006] A measuring tool for the distance from the end face tooth of a VL-type universal joint star sleeve to the end face of a boss, which is used to measure the distance from the end face tooth of the VL-type universal joint star sleeve to the end face of a boss of a center boss. The measuring tool for the distance from the end face tooth of the VL-type universal joint star sleeve to the end face of a boss comprises a base, a measuring lever assembly, a dial indicator assembly and a measuring reference block assembly. The measuring lever assembly, the dial indicator assembly and the measuring reference block assembly are all arranged on the base, and the dial indicator assembly and the measuring reference block assembly are respectively located on both sides of the measuring lever assembly; the measuring reference block assembly comprises a measuring reference block base, the star sleeve is supported on the measuring reference block base, the measuring reference block base is vacantly arranged on the base, and the measuring reference block base has a first central through hole for inserting the center boss of the star sleeve, so that the end face of the boss touches the first end of the measuring lever assembly, drives the measuring lever assembly to rotate, and then the second end of the measuring lever assembly drives the dial indicator assembly to generate a measurement result.

[0007] Furthermore, the measuring lever assembly includes a measuring lever, a measuring head is provided at the first end of the measuring lever, the measuring head is located below the first center through hole and is used to contact the end face of the boss, a measuring lever center axis is provided in the middle of the measuring lever, the measuring head drives the measuring lever to rotate around the measuring lever center axis, and the second end of the measuring lever is used to contact the dial indicator assembly.

[0008] Furthermore, the measuring lever assembly also includes a lever seat and an elastic member, the lever seat is arranged on the base, the measuring lever is arranged on the lever seat, and the elastic member is arranged between the measuring lever and the base.

[0009] Furthermore, the elastic member is a compression spring.

[0010] Furthermore, the dial indicator assembly includes a dial indicator seat and a dial indicator, the dial indicator seat is arranged on the base, the dial indicator is arranged on the dial indicator seat, and the dial indicator has a dial indicator contact head, and the dial indicator contact head contacts the second end of the measuring lever.

[0011] Furthermore, the base includes a bottom plate, an equal height block arranged on the bottom plate, an upper plate arranged on the equal height block and a foot fixing structure arranged on the bottom plate, the measuring reference block assembly is arranged on the upper plate, and a second center through hole connected to the first center through hole is arranged on the upper plate, and the end of the measuring head contacts the end face of the boss in the second center through hole.

[0012] Furthermore, there are two equal-height blocks, and the two equal-height blocks are symmetrically arranged relative to the first central through hole.

[0013] Furthermore, the measuring reference block assembly also includes an engaging ball, the center of which is arranged on a reference circle of the measuring reference block base, the reference circle is formed on the peripheral wall of the first center through hole, and the engaging ball contacts and engages with the tooth center diameter on the end face tooth reference circle of the star sleeve.

[0014] Furthermore, the meshing balls are steel balls, and the number of the steel balls is 3.

[0015] The beneficial effects of the utility model are:

[0016] (1) The measurement and judgment methods are simple, the detection speed is fast, and the skill requirements for the detection personnel are low;

[0017] (2) Low hardware cost, fast detection speed, and low environmental requirements;

[0018] (3) The detection accuracy can meet the requirements for the distance from the end face tooth to the end face of the boss of the universal joint for automobiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the star set structure;

[0020] Figure 2 For along Figure 1 A view from the middle;

[0021] Figure 3 It is a schematic diagram of the overall structure of the end face tooth to boss end face measuring tool of the VL type universal joint star sleeve of the utility model;

[0022] Figure 4 yes Figure 3 A partial cross-sectional schematic diagram along the BB direction;

[0023] Figure 5 It is a top view of a measurement reference block assembly according to an embodiment of the utility model;

[0024] Figure 6 yes Figure 5 Schematic diagram of the longitudinal section. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "up", "down", "left" and "right", can be the direction of the actual use or working state of the device, can also be the direction of the drawing with reference to the accompanying drawings, and can also refer to two relative directions; while "inside" and "outside" refer to the outline of the device.

[0026] See also Figure 3 to Figure 4 As shown, the utility model provides a measuring tool for the distance from the end face tooth of a VL-type universal joint star sleeve to the end face of a boss, which is used to measure the distance between the end face tooth 11 of a VL-type universal joint star sleeve 10 and the boss end face 13 of a center boss 12. The measuring tool for the distance from the end face tooth of a VL-type universal joint star sleeve to the end face of a boss comprises a base 20, a measuring lever assembly 40, a dial indicator assembly 60 and a measuring reference block assembly 80. The measuring lever assembly 40, the dial indicator assembly 60 and the measuring reference block assembly 80 are all arranged on the base 20, and the dial indicator assembly 60 and the measuring reference block assembly 80 are respectively located on both sides of the measuring lever assembly 40. The measuring reference block assembly 80 includes a measuring reference block base 82, on which the star sleeve 10 is supported, and the measuring reference block base 82 is vacantly arranged on the base 20. The measuring reference block base 82 has a first central through hole 822 for inserting the central boss 12 of the star sleeve 10, so that the boss end face 13 touches the first end of the measuring lever assembly 40, drives the measuring lever assembly 40 to rotate, and then the second end of the measuring lever assembly 40 drives the dial indicator assembly 60 to generate a measurement result. The utility model uses the boss end face 13 to touch the measuring lever assembly 40 to measure the distance D from the end face tooth 11 of the VL-type universal joint star sleeve 10 to the boss end face 13, and the measuring and judging method is simple, the detection speed is fast, and the skill requirements for the detection personnel are low.

[0027] In one specific embodiment, see Figure 4The measuring lever assembly 40 includes a measuring lever 42. A measuring head 44 is provided at a first end 422 of the measuring lever 42. The measuring head 44 is located below the first central through hole 822 and is used to contact the boss end surface 13. A measuring lever central axis 424 is provided at the middle of the measuring lever 42. The measuring head 44 drives the measuring lever 42 to rotate around the measuring lever central axis 424, and the second end 426 of the measuring lever 42 contacts the dial indicator assembly 60. In this embodiment, the measuring head 44 drives the measuring lever 42 to rotate around the measuring lever central axis 424, and the second end 426 of the measuring lever 42 contacts the dial indicator assembly 60, so that the dial indicator assembly 60 generates a measurement result. The measuring and judging methods are simple, the detection speed is fast, and the skill requirements for the detection personnel are low.

[0028] In one specific embodiment, see Figure 4 The measuring lever assembly 40 further includes a lever seat 46 and an elastic member 48. The lever seat 46 is disposed on the base 20, the measuring lever 42 is disposed on the lever seat 46, and the elastic member 48 is disposed between the measuring lever 42 and the base 20. The elastic member 48 may be a compression spring. In this embodiment, the measuring lever 42 is disposed on the lever seat 46, and the elastic member 48 is a compression spring, which has low hardware cost, fast detection speed, and low environmental requirements.

[0029] In one specific embodiment, see Figure 3 and Figure 4 The dial gauge assembly 60 includes a dial gauge seat 62 and a dial gauge 64. The dial gauge seat 62 is arranged on the base 20. The dial gauge 64 is arranged on the dial gauge seat 62. The dial gauge 64 has a dial gauge contact head 642. The dial gauge contact head 642 contacts the second end 426 of the measuring lever 42. By placing the star sleeve 10 on the measuring reference block assembly 80, the middle diameter of the face gear reference circle contacts and engages with the meshing ball 84 on the measuring reference block base 82. The boss end face 13 of the star sleeve 10 contacts the measuring head 44. The measuring head 44 drives the measuring lever 42 to rotate around the measuring lever center axis 424. The measuring lever 42 contacts the dial gauge contact head 642, so that the dial gauge 62 generates a value that can represent the measurement result. The staff can read the value of the dial gauge 62 for measurement. The detection accuracy can meet the requirements of the distance from the face gear to the boss end face for automobiles. The measuring tool measurement and judgment method provided in this embodiment is simple, and has low skill requirements for the inspection personnel; the hardware cost is low, the inspection speed is fast, and the environmental requirements are low; the inspection accuracy can meet the requirements for the distance from the end face tooth to the boss end face for automobiles.

[0030] In one specific embodiment, see Figure 3 and Figure 4The base 20 includes a bottom plate 22, a contour block 24 disposed on the bottom plate 22, an upper plate 26 disposed on the contour block 24, and a foot fixing structure 28 disposed on the bottom plate 22. The measuring reference block assembly 80 is disposed on the upper plate 26, and a second central through hole 262 communicating with the first central through hole 822 is disposed on the upper plate 26. The end of the measuring head 44 contacts the boss end face 13 in the second central through hole 262. The foot fixing structure 28 can be a screw, and the number of screws can be 4. There can be two contour blocks 24, and the two contour blocks 24 are symmetrically disposed relative to the first central through hole 822. The measuring lever assembly 40 is disposed between the two contour blocks 24. The measuring tool provided in this embodiment is provided with a second center through hole 262 connected to the first center through hole 822, so that the end of the measuring head 44 of the measuring lever assembly 40 contacts the boss end face 13 in the second center through hole 262. The measuring and judging methods are simple and the skill requirements for the inspectors are low; the hardware cost is low and the inspection speed is fast.

[0031] In a specific embodiment, the measuring reference block assembly 80 further includes an engagement ball 84, which is disposed on the measuring reference block base 82 and is used to engage with the end face gear 11. Figure 5 to Figure 6 as well as Figure 2 As shown, Figure 2 The red line in the middle represents the face gear reference circle 102, and the blue line represents the tooth normal Φ. The meshing ball 84 is preferably a steel ball. The number of the meshing balls 84 can be 3, and the centers of the 3 meshing balls 84 are set on the reference circle 824 of the measuring reference block base 82, and are in contact and meshing with the tooth median diameter 112 on the face gear reference circle 102 of the star sleeve 10. The face gear 11 is supported by a measuring tool, so that the measuring tool fixes the face gear along the tooth normal Φ on the circumference. The reference circle 824 is formed on the peripheral wall of the first center through hole 822. The meshing ball 84 can be firmly bonded to the measuring reference block base 82. The reference surface of the face gear 11 is on the median diameter of the tooth, and the 3 meshing balls 84 simulate the meshing of the face gear in the working state, and the 3 points constitute a surface, so that the face gear to boss end face measuring tool of the VL-type universal joint star sleeve can find the reference surface of the face gear 11. The measuring tool provided in this embodiment uses three meshing balls to find the reference surface of the end face gear 11. The measuring and judging methods are simple, the detection speed is fast, the skill requirements for the detection personnel are low, and the detection accuracy can meet the distance requirements from the end face gear to the boss end face for automobiles.

[0032] In summary, please refer to Figures 3 to 6The utility model arranges a measuring lever assembly 40, a dial indicator assembly 60 and a measuring reference block assembly 80 on a base 20, so that the measuring reference block assembly 80 includes a measuring reference block base 82, and the measuring reference block base 82 has a first central through hole 822 for inserting the central boss 12 of the star sleeve 10, and at the same time, a second central through hole 262 connected with the first central through hole 822 is arranged on the upper plate 26 of the base 20, so that the boss end face 13 touches the first end of the measuring lever assembly 40, and the measuring lever in the measuring lever assembly 40 is rotated around the measuring lever center axis 424 to drive the dial indicator 64 in the dial indicator assembly 60 to move, so that the value of the dial indicator 64 can be read for measurement, the measuring and judging method is simple, the detection speed is fast, and the skill requirements for the detection personnel are low. At the same time, the hardware cost is low, the environmental requirements are low, and the detection accuracy can meet the requirements for the distance from the end face tooth to the boss end face for automobiles.

[0033] The above is only a preferred embodiment of the utility model, and is not any formal or substantial limitation of the utility model. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the utility model, and these improvements and supplements should also be regarded as the protection scope of the utility model. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the utility model, which are all equivalent embodiments of the utility model; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the utility model are still within the scope of the technical solution of the utility model.

Claims

1. A measuring tool for measuring the distance between the end face tooth and the end face of a boss of a VL-type universal joint star sleeve, used for measuring the distance between the end face tooth (11) of a VL-type universal joint star sleeve (10) and the boss end face (13) of a center boss (12), characterized in that: The measuring tool for measuring the distance between the end face tooth and the end face of the boss of the VL-type universal joint star sleeve comprises a base (20), a measuring lever assembly (40), a dial indicator assembly (60) and a measuring reference block assembly (80); the measuring lever assembly (40), the dial indicator assembly (60) and the measuring reference block assembly (80) are all arranged on the base (20); the dial indicator assembly (60) and the measuring reference block assembly (80) are respectively located on both sides of the measuring lever assembly (40); the measuring reference block assembly (80) comprises a measuring reference block base (82) The star-shaped sleeve (10) is supported on the measuring reference block base (82), and the measuring reference block base (82) is suspended on the base (20). The measuring reference block base (82) has a first central through hole (822) for inserting the central boss (12) of the star-shaped sleeve (10), so that the boss end surface (13) touches the first end of the measuring lever assembly (40), drives the measuring lever assembly (40) to rotate, and then the second end of the measuring lever assembly (40) drives the dial indicator assembly (60) to generate a measurement result.

2. The measuring tool for measuring the distance from the end face tooth to the end face of the boss of the VL-type universal joint star sleeve according to claim 1, characterized in that: The measuring lever assembly (40) includes a measuring lever (42), a first end (422) of the measuring lever (42) is provided with a measuring head (44), the measuring head (44) is located below the first central through hole (822) and is used to contact the boss end surface (13), a measuring lever center axis (424) is provided in the middle of the measuring lever (42), the measuring head (44) drives the measuring lever (42) to rotate around the measuring lever center axis (424), and the second end (426) of the measuring lever (42) is used to contact the dial indicator assembly (60).

3. The measuring tool for the distance between the end face tooth and the end face of the boss of the VL-type universal joint star sleeve according to claim 2, characterized in that: The measuring lever assembly (40) further comprises a lever seat (46) and an elastic member (48), wherein the lever seat (46) is arranged on the base (20), the measuring lever (42) is arranged on the lever seat (46), and the elastic member (48) is arranged between the measuring lever (42) and the base (20).

4. The measuring tool for measuring the distance from the end face tooth to the end face of the boss of the VL-type universal joint star sleeve according to claim 3, characterized in that: The elastic member (48) is a compression spring.

5. The measuring tool for measuring the distance between the end face tooth and the end face of the boss of the VL-type universal joint star sleeve according to claim 2, characterized in that: The dial indicator assembly (60) comprises a dial indicator seat (62) and a dial indicator (64), wherein the dial indicator seat (62) is arranged on the base (20), and the dial indicator (64) is arranged on the dial indicator seat (62), and the dial indicator (64) has a dial indicator contact head (642), and the dial indicator contact head (642) contacts the second end (426) of the measuring lever (42).

6. The measuring tool for the distance between the end face tooth and the end face of the boss of the VL-type universal joint star sleeve according to claim 2, characterized in that: The base (20) comprises a bottom plate (22), an equal height block (24) arranged on the bottom plate (22), an upper plate (26) arranged on the equal height block (24), and a foot fixing structure (28) arranged on the bottom plate (22); the measuring reference block assembly (80) is arranged on the upper plate (26), and the upper plate (26) is provided with a second central through hole (262) connected to the first central through hole (822); the end of the measuring head (44) contacts the end surface (13) of the boss in the second central through hole (262).

7. The measuring tool for measuring the distance from the end face tooth to the end face of the boss of the VL-type universal joint star sleeve according to claim 6, characterized in that: There are two equal-height blocks (24), and the two equal-height blocks (24) are symmetrically arranged relative to the first central through hole (822).

8. The measuring tool for measuring the distance from the end face tooth to the end face of the boss of the VL-type universal joint star sleeve according to claim 7, characterized in that: The measuring reference block assembly (80) further comprises an engaging ball (84), the center of which is arranged on a reference circle (824) of the measuring reference block base (82), the reference circle (824) being arranged along the peripheral wall of the first central through hole (822), and the engaging ball (84) is in contact and engagement with a tooth median diameter (112) on an end face tooth reference circle (102) of the star sleeve (10).

9. The measuring tool for measuring the distance from the end face tooth to the end face of the boss of the VL-type universal joint star sleeve according to claim 8, characterized in that: The meshing balls (84) are steel balls, and the number of the steel balls is 3.

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