CN220568055U

CN220568055U - Spline is to hole coaxial measurement utensil

Info

Publication number: CN220568055U
Application number: CN202322303320.1U
Authority: CN
Inventors: 姚力超; 陈子彦; 印毅; 阳敏莉; 李平峰; 戴永军
Original assignee: Est Tools Co ltd
Current assignee: Est Tools Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-08
Anticipated expiration: 2033-08-28

Abstract

The utility model relates to a spline-to-inner hole coaxiality measuring tool, which comprises a measuring tool main body, wherein a through hole is formed in the measuring tool main body, a coaxiality gauge is inserted and installed at the top of the through hole, an inner spline is arranged on the inner wall of the through hole, a first connecting hole communicated with the through hole is formed in the side wall of the measuring tool main body, the first connecting hole and the through hole are positioned on the same axis, and a limiting mechanism for limiting a part to be measured of a workpiece to be measured is arranged in the measuring tool main body; the workpiece to be measured is inserted into the measuring tool main body, the limiting of the workpiece to be measured is completed through the limiting mechanism, the coaxiality gauge is assisted, the coaxiality of the workpiece to be measured with the spline in the middle hollow and the excircle can be rapidly detected, and the measuring efficiency is high.

Description

Spline is to hole coaxial measurement utensil

Technical Field

The utility model relates to the technical field of measuring tool processing, in particular to a measuring tool for coaxiality of an inner hole of a spline pair.

Background

At present, a plurality of parts with hollow middle and spline on the outer circle exist in the automobile part industry, and the spline of the parts often has certain coaxiality requirement on an inner hole, and the existing detection technology does not have a special measuring tool for detecting the coaxiality, so that the measurement efficiency is low.

Disclosure of Invention

The utility model solves the technical problem that the existing detection technology does not have a special measuring tool for detecting the coaxiality, so that the measurement efficiency is low.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a spline is to hole axiality measuring tool, be equipped with the through-hole in the measuring tool main part, and the through-hole top inserts and installs the axiality rule, the inner wall of through-hole is equipped with the internal spline, set up on the lateral wall of measuring tool main part with the first connecting hole of through-hole intercommunication, and first connecting hole is in the same axis with the through-hole, be provided with the stop gear who is used for restricting the portion of awaiting measuring of work piece in the measuring tool main part.

Preferably, the measuring tool main body comprises a first ring body, a second ring body and a third ring body which are sequentially arranged from top to bottom, the first ring body, the second ring body and the third ring body are fixedly connected, and a rotary light hole is formed in the second ring body and the third ring body.

Preferably, the limiting mechanism comprises a rotating block, an inner limiting spline is arranged on the inner wall of the rotating block, the rotating block is rotatably arranged in the rotating unthreaded hole, a pushing notch is formed in the outer wall of the rotating block, and a pushing surface is arranged on the pushing notch.

Preferably, the outer wall of the third ring body of the measuring tool main body is provided with a limiting internal threaded hole in a penetrating mode, the limiting internal threaded hole is internally provided with a limiting bolt in a threaded mode, the end portion of the limiting bolt is a limiting end, and the limiting end is in contact with the pushing surface.

Preferably, the inner wall of the rotary light hole is provided with an inner mounting groove, a bulge is fixed on the outer wall of the rotary block, and a spring is arranged between the bulge and the inner wall of the inner mounting groove.

Preferably, an inner connecting shaft is installed in the inner installation groove, a through hole for the inner connecting shaft to penetrate is formed in the protrusion, an inner positioning shaft is fixed at one end of the inner connecting shaft, and the spring is sleeved on the inner connecting shaft.

Preferably, a cushion block is fixed at the bottom of the third ring body of the measuring tool main body.

Preferably, the coaxiality gauge comprises a first outer circle and a second outer circle, and a handle is arranged on the first outer circle.

Preferably, a hole to be measured is formed in a part to be measured of the workpiece to be measured, and an external spline is arranged on the outer side of the part to be measured.

Preferably, the external spline and the internal spline are mutually matched.

The beneficial effects of the utility model are as follows: the workpiece to be measured is inserted into the measuring tool main body, the limiting of the workpiece to be measured is completed through the limiting mechanism, the coaxiality gauge is assisted, the coaxiality of the workpiece to be measured with the spline in the middle hollow and the excircle can be rapidly detected, and the measuring efficiency is high.

Drawings

Fig. 1 is a front view of the present utility model.

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present utility model.

FIG. 3 is a cross-sectional view of the utility model at B-B in FIG. 1.

FIG. 4 is a schematic diagram of the structure of a workpiece to be measured according to the present utility model.

Legend description:

1. a through hole; 2. a first connection hole; 3. a cushion block; 4. a first outer circle; 5. a second outer circle; 6. a rotating block; 7. a limit bolt; 8. an internal limiting spline; 9. rotating the light hole; 10. pushing the notch; 11. a pushing surface; 12. limiting the internal thread hole; 13. a hole to be measured; 14. a limiting end; 15. a first ring body; 16. a second ring body; 17. a third ring body; 18. an inner mounting groove; 19. a protrusion; 20. a spring; 21. an inner connecting shaft; 22. an inner positioning shaft; 23. a handle; 24. an external spline; 25. a workpiece to be measured; 26. and a part to be measured.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples are given below.

Referring to fig. 1-4, a measuring tool for coaxiality of an inner hole of a spline pair comprises a measuring tool main body, wherein a through hole 1 is formed in the measuring tool main body, a coaxiality gauge is installed at the top of the through hole 1 in a plugging manner, an inner spline is arranged on the inner wall of the through hole 1, a first connecting hole 2 communicated with the through hole 1 is formed in the side wall of the measuring tool main body, the first connecting hole 2 and the through hole 1 are located on the same axis, a hole 13 to be measured is formed in a portion 26 to be measured of a workpiece 25 to be measured, an outer spline 24 is arranged on the outer side of the portion 26 to be measured, and during measurement, the portion 26 to be measured of the workpiece 25 to be measured is inserted into the through hole 1, and at the moment, the outer spline 24 and the inner spline are matched with each other.

The measuring tool main body comprises a first ring body 15, a second ring body 16 and a third ring body 17 which are sequentially arranged from top to bottom, the first ring body 15, the second ring body 16 and the third ring body 17 are fixedly connected, a cushion block 3 is fixed at the bottom of the third ring body 17 of the measuring tool main body, and a rotary light hole 9 is formed in the second ring body 16 and the third ring body 17.

A limiting mechanism for limiting the to-be-measured part 26 of the workpiece 25 to be measured is arranged in the measuring tool main body and used for limiting the position of the to-be-measured part 26 in the through hole 1, the limiting mechanism comprises a limiting state and a releasing state, the limiting mechanism limits the to-be-measured part 26 inserted into the through hole 1 in the limiting state, and the limiting mechanism releases the limit of the to-be-measured part 26 inserted into the through hole 1 in the releasing state; during measurement, the position of the portion 26 to be measured is limited, so that measurement is facilitated.

The limiting mechanism comprises a rotating block 6, an inner limiting spline 8 is arranged on the inner wall of the rotating block 6, the rotating block 6 is rotatably arranged in a rotating unthreaded hole 9, a pushing notch 10 is formed in the outer wall of the rotating block 6, a pushing surface 11 is arranged on the pushing notch 10, a limiting internally threaded hole 12 is formed in the outer wall of a third ring body 17 of the measuring tool main body in a penetrating mode, a limiting bolt 7 is arranged in the limiting internally threaded hole 12 in a threaded mode, the end portion of the limiting bolt 7 is a limiting end 14, the limiting end 14 is in contact with the pushing surface 11, the limiting bolt 7 is rotated, the limiting end 14 pushes the pushing surface 11 to enable the rotating block 6 to rotate, when measurement is needed, a portion 26 to be measured is connected with the through hole 1, at the moment, external splines 24 on the portion to be measured 26 are respectively matched with the internal splines on the through hole 1, the internal limiting splines 8 on the inner wall of the rotating block 6, and then the limiting end 14 of the limiting bolt 7 pushes the pushing surface 11 to enable the rotating block 6 to rotate through the rotating limiting bolt 7, and accordingly the internal limiting splines 8 limit the external splines 24 on the portion 26.

The inner wall of the rotary light hole 9 is provided with an inner mounting groove 18, a bulge 19 is fixed on the outer wall of the rotary block 6, a spring 20 is mounted between the bulge 19 and the inner wall of the inner mounting groove 18, when the part 26 to be tested is not required to be limited, the limiting bolt 7 is reversed, the spring 20 gives resilience force to the bulge 19, so that the rotary block 6 is driven to rotate reversely, the rotary block 6 is driven to reset, the inner mounting groove 18 is internally provided with an inner connecting shaft 21, the bulge 19 is provided with a through hole for the inner connecting shaft 21 to penetrate, one end of the inner connecting shaft 21 is fixedly provided with an inner positioning shaft 22, the spring 20 is sleeved on the inner connecting shaft 21, the inner connecting shaft 21 and the inner positioning shaft 22 can move in the inner mounting groove 18, the inner connecting shaft 21 can avoid the spring 20 to move randomly, when the rotary block 6 is in a reset state, the left end of the inner positioning shaft 22 is abutted to the left end of the inner mounting groove 18, and the positioning of the rotary block 6 is realized, and at the moment, the inner spline and the position of the inner limiting spline 8 are aligned, so that the part 26 to be tested can be inserted smoothly.

The axiality rule includes first excircle 4 and second excircle 5, and be provided with handle 23 on the first excircle 4, handle 23 can be convenient for the holding of axiality rule, during the measurement, second excircle 5 is connected the cooperation with the hole 13 that awaits measuring on the portion 26 that awaits measuring, this moment second excircle 5 is connected the cooperation with first connecting hole 2, when second excircle 5 inserts the hole 13 that awaits measuring, second excircle 5 is connected the cooperation with first connecting hole 2, represent that the axiality accords with the requirement, work piece detects qualified, if after second excircle 5 inserts the hole 13 that awaits measuring, first excircle 4 can not insert first connecting hole 2, then indicate that the axiality does not accord with the requirement, work piece detects inequality.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Spline is to hole axiality measuring tool, a serial communication port, including the measuring tool main part, be equipped with through-hole (1) in the measuring tool main part, and through-hole (1) top connect to insert and install the axiality rule, the inner wall of through-hole (1) is equipped with the internal spline, set up on the lateral wall of measuring tool main part with first connecting hole (2) of through-hole (1) intercommunication, and first connecting hole (2) are in the same axis with through-hole (1), be provided with the stop gear of the portion (26) that awaits measuring that is used for restricting workpiece (25) that awaits measuring in the measuring tool main part.

2. The measuring tool for coaxiality of an inner hole of a spline pair according to claim 1, wherein the measuring tool main body comprises a first ring body (15), a second ring body (16) and a third ring body (17) which are sequentially arranged from top to bottom, the first ring body (15), the second ring body (16) and the third ring body (17) are fixedly connected, and a rotary light hole (9) is formed in the second ring body (16) and the third ring body (17).

3. The measuring tool for coaxiality of inner holes of spline pair according to claim 2, wherein the limiting mechanism comprises a rotating block (6), an inner limiting spline (8) is arranged on the inner wall of the rotating block (6), the rotating block (6) is rotatably arranged in a rotating unthreaded hole (9), a pushing notch (10) is formed in the outer wall of the rotating block (6), and a pushing surface (11) is arranged on the pushing notch (10).

4. The measuring tool for coaxiality of an inner hole of a spline pair according to claim 3, wherein the outer wall of the third ring body (17) of the measuring tool main body is provided with a limiting inner threaded hole (12) in a penetrating mode, the limiting inner threaded hole (12) is internally provided with a limiting bolt (7), the end portion of the limiting bolt (7) is a limiting end (14), and the limiting end (14) is in contact with the pushing surface (11).

5. The measuring tool for coaxiality of an inner hole and an inner hole of a spline according to claim 4, wherein an inner mounting groove (18) is formed in the inner wall of the rotary unthreaded hole (9), a protrusion (19) is fixed on the outer wall of the rotary block (6), and a spring (20) is mounted between the protrusion (19) and the inner wall of the inner mounting groove (18).

6. The measuring tool for coaxiality of a spline pair inner hole according to claim 5, wherein an inner connecting shaft (21) is installed in the inner installation groove (18), a through hole for the inner connecting shaft (21) to penetrate is formed in the protrusion (19), an inner positioning shaft (22) is fixed at one end of the inner connecting shaft (21), and the spring (20) is sleeved on the inner connecting shaft (21).

7. The measuring tool for coaxiality of a spline and an inner hole according to claim 2, wherein a cushion block (3) is fixed at the bottom of a third ring body (17) of the measuring tool main body.

8. The tool according to claim 1, wherein the tool comprises a first outer circle (4) and a second outer circle (5), and a handle (23) is provided on the first outer circle (4).

9. The measuring tool for coaxiality of inner holes of spline pairs according to claim 1, wherein a hole (13) to be measured is formed in a portion (26) to be measured of the workpiece (25) to be measured, and an external spline (24) is arranged on the outer side of the portion (26) to be measured.

10. The spline-to-bore coaxiality gauge as claimed in claim 9, wherein the external spline (24) is interfitting with the internal spline.