CN216869427U

CN216869427U - Sleeve precision detection mechanism

Info

Publication number: CN216869427U
Application number: CN202122383719.6U
Authority: CN
Inventors: 强崴; 倪敏
Original assignee: Jiangsu Phisong Cnc Machine Co ltd
Current assignee: Jiangsu Phisong Cnc Machine Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-07-01
Anticipated expiration: 2031-09-29

Abstract

The utility model belongs to the technical field of detection equipment, and relates to a sleeve precision detection mechanism which comprises a bearing sleeve, wherein an angular contact ball bearing is supported and arranged on an inner hole step of the bearing sleeve, a rotating shaft is arranged in an inner hole of the angular contact ball bearing, the lower end of the rotating shaft extends out of the inner hole of the angular contact ball bearing, and is in threaded connection with a locking nut at the lower end of the rotating shaft so as to limit the inner ring of the angular contact ball bearing; the supporting seat is placed on the upper surface of the tray, the supporting seat is adjusted in position through adjusting screws on the adjusting seats, and the upper end of the supporting seat is provided with a sleeve connecting portion so as to place a sleeve. The detection mechanism can efficiently and reliably detect the coaxiality and the end face verticality of the sleeve.

Description

Sleeve precision detection mechanism

Technical Field

The utility model belongs to the technical field of detection equipment, and relates to a sleeve precision detection mechanism.

Background

The coaxiality of the bearing mounting holes at the two ends of the sleeve part and the verticality of the inner hole and the end face need to be detected. The traditional method is to place the sleeve on a V-shaped block and use three coordinates to detect. Due to the limited three-coordinate stroke, the error of the detection result is large and the efficiency is not high. Meanwhile, the three-coordinate system is expensive, so that the three-coordinate system is used to detect the sleeve parts, which has economic and functional defects.

Disclosure of Invention

The utility model aims at the problems and provides a sleeve precision detection mechanism which can efficiently and reliably detect the coaxiality and the end face verticality of a sleeve.

According to the technical scheme of the utility model: the utility model provides a sleeve precision detection mechanism which characterized in that: the angle contact type bearing comprises a bearing sleeve, wherein an inner hole step of the bearing sleeve is supported and provided with an angular contact ball bearing, a rotating shaft is arranged in an inner hole of the angular contact ball bearing, the lower end of the rotating shaft extends out of the inner hole of the angular contact ball bearing, a locking nut is in threaded connection with the lower end of the rotating shaft so as to limit the inner ring of the angular contact ball bearing, the upper end of the bearing sleeve is fixedly connected with a cover, the cover limits the upper end of the angular contact ball bearing, the upper end of the rotating shaft extends out of the bearing sleeve, and a tray is fixedly connected with the upper end of the rotating shaft;

a plurality of adjusting seats are uniformly distributed on the circumferential surface of the tray, a supporting seat is arranged on the upper surface of the tray, the position of the supporting seat is adjusted through an adjusting screw on the adjusting seat, and a sleeve connecting part is constructed at the upper end of the supporting seat to place a sleeve;

and the dial indicator is also included.

As a further improvement of the utility model, the number of the adjusting seats is four.

As a further improvement of the utility model, the axial lower end of the bearing sleeve is tightly connected with the bottom plate.

As a further improvement of the utility model, the tray is provided with a positioning hole, and the upper end shaft diameter of the rotating shaft extends into the positioning hole of the tray.

As a further improvement of the utility model, the lower end of the cover is provided with an axial extension part which is pressed on the upper end of the outer ring of the angular contact ball bearing.

As a further improvement of the utility model, the lock nut is a locknut.

The utility model has the technical effects that: the product of the utility model has reasonable and ingenious structure, low manufacturing cost, convenient use, operation without professional training and maintenance basically. The product of the utility model is provided with the bearing sleeve, the angular contact ball bearing is supported and arranged in the bearing sleeve so as to reliably support the rotating shaft, and the tray can synchronously rotate with the rotating shaft so as to realize corresponding measurement.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In fig. 1, the device comprises a bottom plate 1, a bearing sleeve 2, a cover 3, a tray 4, a rotating shaft 5, a first inner hexagonal socket head cap screw 6, an angular contact ball bearing 7, a lock nut 8, a second inner hexagonal socket head cap screw 9, an adjusting seat 10, a dial indicator 11, a sleeve 12, a supporting seat 13 and the like.

As shown in fig. 1, the present invention is a sleeve accuracy detection mechanism, including a bearing housing 2, an angular contact ball bearing 7 is supported and arranged on an inner hole step of the bearing housing 2, a rotating shaft 5 is installed in an inner hole of the angular contact ball bearing 7, a lower end of the rotating shaft 5 extends out from the inner hole of the angular contact ball bearing 7, and a lock nut 8 is connected to a lower end of the rotating shaft 5 by a thread, so as to limit an inner ring of the angular contact ball bearing 7, and in order to ensure that the lock nut 8 is connected to an axial lower end of the rotating shaft 5 by the thread, in a working process, the lock nut 8 is a lock nut.

In order to ensure reliable positioning connection of the rotating shaft 5 and the tray 4, the tray 4 is provided with positioning holes, and the upper end shaft diameter of the rotating shaft 5 extends into the positioning holes of the tray 4.

Further, in specific practice, two angular contact ball bearings 7 are disposed in the inner hole of the bearing sleeve 2, in order to ensure stable and reliable operation, the angular contact ball bearing 7 at the upper end needs to be axially limited, the upper end of the bearing sleeve 2 is fixedly connected with the cover 3, the cover 3 limits the upper end of the angular contact ball bearing 7, and the limiting manner of the cover 3 to the angular contact ball bearing 7 is as follows: the lower end of the cover 3 is provided with an axial extension which is pressed against the upper end of the outer ring of the angular contact ball bearing 7.

The upper end of the rotating shaft 5 extends out of the bearing sleeve 2, and the tray 4 is fixedly connected with the upper end of the rotating shaft 5.

The circumference surface equipartition of tray 4 sets up a plurality of adjustment seats 10, and supporting seat 13 is placed to tray 4 upper surface, position control is carried out through adjusting screw on the adjustment seat 10 to supporting seat 13, and the upper end of supporting seat 13 constructs the muffjoint portion to place sleeve 12.

The dial indicator comprises a dial indicator 11, and the dial indicator 11 can realize corresponding data detection.

Further, in order to ensure reliable and stable positioning during the adjustment of the supporting seat 13 during operation, the number of the adjusting seats 10 is four, and four adjusting seats 10 are arranged on the circumferential surface of the supporting seat 13 at intervals of 90 degrees.

In order to ensure that the angular contact ball bearing 7 has a stable, reliable and unaffected working environment, the axial lower end of the bearing sleeve 2 is firmly connected with the bottom plate 1.

When the product works, the whole set of mechanism is placed on a platform which is well checked, then the supporting seat 13 is placed on the tray 4, the gauge head of the dial indicator 11 is contacted with the excircle of the upper end of the supporting seat 13, the tray 4 is manually rotated, the coaxiality tolerance of the supporting seat 13 and the rotating shaft 5 can be read through the dial indicator 11, the coaxiality error of the supporting seat 13 and the rotating shaft 5 is adjusted by rotating the first inner hexagonal socket head cap screw 6 on the adjusting seat 10, the coaxiality error is controlled within 0.001mm, and the first inner hexagonal socket head cap screw 6 on the adjusting seat 10 can be locked to fix the supporting seat 13.

The sleeve 12 is placed on the end face of the supporting seat 13, the gauge head of the dial indicator 11 is in contact with the inner circle face of the lower end of the sleeve 12, the tray 4 is rotated, and the coaxiality of the sleeve 12 and the supporting seat 13 is corrected until the dial indicator 11 reads within 0.001 mm. At this time, another dial indicator 11 is placed at the inner circle of the upper end of the sleeve 12, the indicator head of the dial indicator is in contact with the inner circle surface, and the tray 4 is rotated at the same time, so that the coaxiality data of the inner circles at the two ends of the sleeve can be read.

Claims

1. The utility model provides a sleeve precision detection mechanism which characterized in that: the bearing device comprises a bearing sleeve (2), wherein an angular contact ball bearing (7) is supported and arranged on an inner hole step of the bearing sleeve (2), a rotating shaft (5) is installed in an inner hole of the angular contact ball bearing (7), the lower end of the rotating shaft (5) extends out of an inner hole of the angular contact ball bearing (7), and is in threaded connection with a locking nut (8) at the lower end of the rotating shaft (5) so as to limit the inner ring of the angular contact ball bearing (7), the upper end of the bearing sleeve (2) is fixedly connected with a cover (3), the cover (3) limits the upper end of the angular contact ball bearing (7), the upper end of the rotating shaft (5) extends out of the bearing sleeve (2), and a tray (4) is fixedly connected with the upper end of the rotating shaft (5);

a plurality of adjusting seats (10) are uniformly distributed on the circumferential surface of the tray (4), a supporting seat (13) is arranged on the upper surface of the tray (4), the position of the supporting seat (13) is adjusted through an adjusting screw on the adjusting seat (10), and a sleeve connecting part is constructed at the upper end of the supporting seat (13) to place a sleeve (12);

the dial indicator (11) is also included.

2. The sleeve accuracy detection mechanism of claim 1, wherein: the number of the adjusting seats (10) is four.

3. The sleeve accuracy detection mechanism of claim 1, wherein: the axial lower end of the bearing sleeve (2) is fixedly connected with the bottom plate (1).

4. The sleeve accuracy detection mechanism of claim 1, wherein: the tray (4) is provided with a positioning hole, and the upper end shaft diameter of the rotating shaft (5) extends into the positioning hole of the tray (4).

5. The sleeve accuracy detection mechanism of claim 1, wherein: the lower end of the cover (3) is provided with an axial extension part, and the axial extension part is tightly pressed on the upper end of an outer ring of the angular contact ball bearing (7).

6. The sleeve accuracy detection mechanism of claim 1, wherein: the locking nut (8) is a locknut.