CN213714278U

CN213714278U - Coaxiality detection mechanism

Info

Publication number: CN213714278U
Application number: CN202023185406.1U
Authority: CN
Inventors: 陆辉
Original assignee: Xiong Hua Machinery Suzhou Co ltd
Current assignee: Xiong Hua Machinery Suzhou Co ltd; Osuga Machine Suzhou Co Ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-07-16
Anticipated expiration: 2030-12-26

Abstract

The utility model discloses a axiality detection mechanism, examine a system including the part positioning system and the axiality of adjacent setting, part positioning system includes part supporting element and oppresses the part unit, and the axiality is examined a system and is examined the utensil including feeding the unit and installing the axiality on feeding the unit, and part positioning system still includes axial spacing unit, and axial spacing unit includes linear displacement mechanism and installs the axial locating part on linear displacement mechanism, and the axial locating part can be deepened in the centre bore of location axle type part on part supporting element. A probe of the coaxiality detection tool penetrates into a center hole of the shaft part to detect the coaxiality value of the center hole. After the probe is withdrawn, the axial limiting part goes deep into the central hole to limit the sleeve, the probe goes deep into the sleeve, and the coaxiality numerical value of the sleeve is detected. And comparing the two groups of coaxiality numerical values to judge whether the coaxiality error between the sleeve and the central hole of the shaft part is in an allowable range.

Description

Coaxiality detection mechanism

Technical Field

The utility model relates to a check out test set of product form and position error, concretely relates to axiality check out test set.

Background

The coaxiality of the shaft part can be measured by the coaxiality between the outer contour of the shaft part and the center hole of the shaft part, the coaxiality between the outer contour of the shaft part and a sleeve assembled in the center hole of the shaft part, and the coaxiality between the center hole of the shaft part and the sleeve assembled in the center hole.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem that: a mechanism for measuring the coaxiality between the central hole of a shaft part and a sleeve assembled in the central hole is provided.

In order to solve the technical problem, the utility model provides a following technical scheme: the coaxiality detection mechanism comprises a part positioning system and a coaxiality detection tool system which are adjacently arranged, wherein the part positioning system comprises a part supporting unit and a pressing part unit, the coaxiality detection tool system comprises a feeding unit and a coaxiality detection tool installed on the feeding unit, the part positioning system further comprises an axial limiting unit, the axial limiting unit comprises a linear displacement mechanism and an axial limiting part installed on the linear displacement mechanism, and the axial limiting part can be deeply positioned in a central hole of a shaft part on the part supporting unit.

The shaft parts are positioned on the part supporting unit, the part supporting unit can drive the shaft parts to rotate, and the shaft parts are kept on the part supporting unit under the pressing of the pressing part unit. Under the drive of the feeding unit, a probe of the coaxiality inspection device extends into a center hole of the shaft part and can be in contact with the side wall of the center hole so as to detect the coaxiality value of the center hole. After the probe is withdrawn from the central hole, under the drive of the linear displacement mechanism, the axial limiting part extends into the central hole of the shaft part to abut against the end face of the sleeve in the central hole in a screwed mode, then the probe extends into the central hole of the shaft part again and extends into the inner wall of the sleeve, and the coaxiality numerical value of the sleeve is detected. And comparing the two groups of coaxiality numerical values to judge whether the coaxiality error between the sleeve and the central hole of the shaft part is in an allowable range.

Because the probe contacts with the telescopic inner wall, and the sleeve is with the centre bore spiro union of axle type part, if do not have axial locating part, at the rotatory in-process of axle type part, the sleeve probably rotates relative to axle type part, influences the result of detection. Therefore, axial locating part have the effect of guaranteeing that the axiality detects going on smoothly.

Drawings

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic view of a coaxiality detection mechanism;

FIG. 2 is a top view of the coaxiality detection mechanism;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a right side view of FIG. 3;

fig. 5 is an enlarged view of fig. 3 at B.

The symbols in the drawings illustrate that:

10. a coaxiality gauge; 11. a probe;

20. an axial stop; 21. a linear displacement mechanism;

30. a first pair of rollers; 31. a second pair of rollers; 32. a motor; 33. a part placing frame; 34. a base;

41. a support; 42. a lever; 43. a linear lifting mechanism; 44. a first pinch roller; 45. a second pinch roller;

51. a guide rail; 52. a sliding table; 53. a first cylinder; 54. a second cylinder;

90. shaft parts; 91. a central hole of the shaft part; 92. a sleeve.

Detailed Description

With reference to fig. 1 and 5, the coaxiality detection mechanism comprises a part positioning system and a coaxiality detection tool system which are adjacently arranged, wherein the part positioning system comprises a part supporting unit and a pressing part unit, the coaxiality detection tool system comprises a feeding unit and a coaxiality detection tool 10 installed on the feeding unit, the part positioning system further comprises an axial limiting unit, the axial limiting unit comprises a linear displacement mechanism 21 and an axial limiting part 20 installed on the linear displacement mechanism, and the axial limiting part can be deeply positioned in a central hole 91 of a shaft part on the part supporting unit.

The shaft part is provided with a center hole 91, a sleeve 92 is screwed in the center hole, and whether the coaxiality error between the sleeve and the center hole of the shaft part is within an allowable range needs to be detected. In operation, the shaft-like part 90 is positioned on the part support unit, and the pressing part unit presses against the shaft-like part, so that the shaft-like part is held on the part support unit. Under the drive of the feeding unit, the probe 11 of the coaxiality inspection device 10 penetrates into the central hole 91 of the shaft part and is in contact with the side wall of the central hole, the part supporting unit drives the shaft part 90 to rotate, and the probe 11 detects the coaxiality value of the central hole. Under the drive of the feeding unit, the probe 11 is withdrawn from the central hole 91, and under the drive of the linear displacement mechanism 21, the axial limiting piece 20 goes deep into the central hole of the shaft part and is pressed against the end face of the sleeve 92, so as to prevent the sleeve from rotating relative to the shaft part 90. After that, the probe 11 is inserted into the central hole 91 of the shaft part again and is inserted into the inner wall of the sleeve 92, and the coaxiality value of the sleeve is detected. And comparing the two groups of coaxiality numerical values to judge whether the coaxiality error between the sleeve and the central hole of the shaft part is in an allowable range.

Alternatively, the axial stop 20 is tile-shaped so that the probe 11 can pass smoothly past the axial stop into the sleeve 92.

Alternatively, the linear displacement mechanism 21 is a pneumatic cylinder.

The part supporting unit comprises a first pair of rollers 30 supported at the head end of the shaft part 90, and a second pair of rollers 31 supported at the tail end of the shaft part, wherein at least one roller of the first pair of rollers is driven by a motor 32. Two pairs of rollers are mounted on the base 34. The motor 32 is mounted on one side of the base.

As a modification, the part supporting unit is equipped with a part resting frame 33 for temporarily placing the shaft-like parts 90.

Oppress the part unit and be located part supporting unit's side, including the lever 42 that articulates on support 41, with the tail end swing joint's of lever linear elevating system 43, install first pinch roller 44 and the second pinch roller 45 at the lever head end, first pinch roller can oppress the left side at axle type part 90 head ends, the second pinch roller can oppress the right side at axle type part tail end, so, can make axle type part keep on first pair of gyro wheel 30 and second pair of gyro wheel 31. Wherein, the linear lifting mechanism 43 can be selected as a cylinder.

The feeding unit comprises a sliding table 52 in sliding fit on the guide rail 51, a first air cylinder 53 connected with the sliding table, and a second air cylinder 54 installed on the sliding table, the coaxiality gauge 10 is connected with a piston of the second air cylinder, the first air cylinder drives the sliding table to horizontally displace, and the second air cylinder drives the coaxiality gauge to lift. The first air cylinder 53 can drive the probe 11 of the coaxiality gauge 10 to penetrate into the central hole 91 of the shaft part, and the second air cylinder 54 can drive the probe 11 to be in contact with the inner side wall of the central hole.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The coaxiality detection mechanism comprises a part positioning system and a coaxiality detection tool system which are adjacently arranged, wherein the part positioning system comprises a part supporting unit and a pressing part unit, the coaxiality detection tool system comprises a feeding unit and a coaxiality detection tool (10) installed on the feeding unit, and the coaxiality detection tool system is characterized in that: the part positioning system further comprises an axial limiting unit, the axial limiting unit comprises a linear displacement mechanism (21) and an axial limiting piece (20) installed on the linear displacement mechanism, and the axial limiting piece can be deeply positioned in a central hole (91) of the shaft part on the part supporting unit.

2. The coaxiality detection mechanism according to claim 1, wherein: the part supporting unit comprises a first pair of rollers (30) supported at the head end of the shaft part (90) and a second pair of rollers (31) supported at the tail end of the shaft part, and at least one roller in the first pair of rollers is driven by a motor (32).

3. The coaxiality detection mechanism according to claim 1, wherein: the part supporting unit is matched with a part placing frame (33).

4. The coaxiality detection mechanism according to claim 1, wherein: the pressing part unit comprises a lever (42) hinged on a support (41), a linear lifting mechanism (43) movably connected with the tail end of the lever, a first pressing wheel (44) and a second pressing wheel (45) which are installed at the head end of the lever, the first pressing wheel can press the left side of the head end of the shaft part (90), and the second pressing wheel can press the right side of the tail end of the shaft part.

5. The coaxiality detection mechanism according to claim 1, wherein: the feeding unit comprises a sliding table (52) which is in sliding fit with the guide rail (51), a first air cylinder (53) connected with the sliding table and a second air cylinder (54) installed on the sliding table, the coaxiality gauge (10) is connected with a piston of the second air cylinder, the first air cylinder drives the sliding table to horizontally displace, and the second air cylinder drives the coaxiality gauge to lift.

6. The coaxiality detection mechanism according to claim 1, wherein: the axial limiting piece (20) is in a tile shape.