CN218002470U

CN218002470U - Blind hole straightness measuring instrument

Info

Publication number: CN218002470U
Application number: CN202221432457.6U
Authority: CN
Inventors: 李运升; 吴一凡; 曹阳; 王贺
Original assignee: Shenyang Additive Intelligent Manufacturing Technology Research Institute Co ltd
Current assignee: Shenyang Additive Intelligent Manufacturing Technology Research Institute Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-12-09
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses a blind hole straightness accuracy measuring apparatu, including industry flat board and autocollimator, and autocollimator passes through the base and supports, pass through wire electric connection between industry flat board and the autocollimator, the inside of blind hole is provided with centering mechanism and the automatic mechanism of crawling, including crawling axle, actuating lever and movable rod in the automatic mechanism of crawling, rotate between actuating lever and the movable rod and connect, the utility model relates to a check out test set technical field. This blind hole straightness accuracy measuring apparatu through being provided with centering mechanism and the automatic mechanism of crawling to adopt the auto-collimation principle of optics, make objective receive speculum light source information and carry out the straightness accuracy and detect, design centering mechanism makes equipment centering blind hole center, improves and detects the precision, reduces the error, and equipment possesses the automatic function of crawling, can pass in and out automatically inside going into the blind hole, and is easy and simple to handle, improves detection efficiency. The requirement on operators is low, and the device can be used in any occasions.

Description

Blind hole straightness measuring instrument

Technical Field

The utility model relates to a check out test set technical field specifically is a blind hole straightness accuracy measuring apparatu.

Background

The deep hole surface is a revolution body surface, a deep hole straightness tolerance zone is divided into two types, namely two parallel straight lines for limiting the shape error of a straight generatrix of a cylindrical surface and a cylinder for limiting the shape error of an axis of the cylinder, according to the characteristics of a cable and the use requirements of the deep hole straightness tolerance zone, deep hole straightness detection is an important component in the process of machining a precise deep hole part, is an important means for controlling and managing the quality of the deep hole part, is the technical guarantee of implementing quality standards, and has extremely important significance.

The hole straightness accuracy to the blind hole part detects, generally adopts machine tool machining to guarantee to dark blind hole straightness accuracy on the existing market, can't carry out the detection of straightness accuracy numerical value, and the operation that leads to detecting is comparatively complicated, and detection efficiency is low, and the result is not accurate, for this reason, the utility model provides a blind hole straightness accuracy measuring apparatu.

SUMMERY OF THE UTILITY MODEL

The utility model provides a blind hole straightness accuracy measuring apparatu, solved and generally adopted machine tool machining to dark blind hole straightness accuracy to guarantee on the existing market, can't carry out the detection of straightness accuracy numerical value, the operation that leads to detecting is comparatively complicated, and detection efficiency is low, the inaccurate problem of result.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a blind hole straightness accuracy measuring apparatu, includes industry flat board and autocollimator, and autocollimator passes through the base and supports, pass through wire electric connection between industry flat board and the autocollimator, the inside of blind hole is provided with centering mechanism and automatic mechanism of crawling, including crawling axle, actuating lever and movable rod in the automatic mechanism of crawling, rotate between actuating lever and the movable rod and connect, the inside fixed mounting of actuating lever has the motor, shaft coupling fixedly connected with bevel pinion is passed through to the one end of motor output shaft, bevel pinion's surface meshing transmission has big bevel pinion, bevel pinion's fixed surface is connected with the rubber tyer, the one end of actuating lever and movable rod all is connected through the surface rotation of round pin axle with the axle of crawling, one side fixedly connected with the adapter sleeve of crawling of axle.

Preferably, the inside fixed mounting of crawling axle has wireless transmission module and lithium cell, and the link electric connection of lithium cell and motor, spring II fixedly connected with sensor mounting panel is passed through on the surface of crawling axle, there is laser displacement sensor on the right side of sensor mounting panel through screwing up screw fixed mounting.

Preferably, the centering mechanism comprises a centering bracket, a centering shaft and a connecting sleeve, the right side of the connecting sleeve is fixedly connected with one side of the crawling connecting sleeve through a connecting nut and a connecting bolt, and the centering shaft is fixedly connected with the opposite side of the connecting sleeve.

Preferably, the surface of the centering shaft is fixedly connected with a bearing cover through a deep groove ball bearing, and one side of the bearing cover is fixedly provided with a centering connecting sleeve through a screw I, a screw II and a screw III.

Preferably, the centering support is fixedly mounted on the surface of the bearing cover, the surface of the centering support is fixedly connected with a movable measuring point sleeve, and an elastic supporting leg is slidably connected inside the movable measuring point sleeve.

Preferably, a spring I is fixedly connected between the inside of the movable measuring point sleeve and the opposite side of the elastic supporting leg, the left side of the centering support is fixedly connected with a reflector support through a screw III, a reflector is placed on the left side of the reflector support, and a reflector pressing plate is fixedly installed on the left side of the reflector support through a screw IV.

Advantageous effects

The utility model provides a blind hole straightness accuracy measuring apparatu. Compared with the prior art, the method has the following beneficial effects:

this blind hole straightness accuracy measuring apparatu through being provided with centering mechanism and the automatic mechanism of crawling to adopt the auto-collimation principle of optics, make objective receive speculum light source information and carry out the straightness accuracy and detect, design centering mechanism makes equipment centering blind hole center, improves and detects the precision, reduces the error, and equipment possesses the automatic function of crawling, can pass in and out automatically inside going into the blind hole, and is easy and simple to handle, improves detection efficiency. The requirement on operators is low, and the device can be used in any occasions.

Drawings

Fig. 1 is a front view of the external structure of the autocollimator of the present invention;

FIG. 2 is a front view of the internal structure of the automatic crawling mechanism of the present invention;

fig. 3 is a partial structure view of fig. 2 according to the present invention;

fig. 4 is a front view of the internal structure of the centering mechanism of the present invention;

fig. 5 is a side view of the centering mechanism of the present invention;

fig. 6 is a side view of the automatic crawling mechanism of the present invention.

In the figure: 1. an industrial flat plate; 2. an autocollimator; 3. a mirror; 4. a screw IV; 5. a reflector platen; 6. a reflector support; 7. a movable measuring point sleeve; 8. an elastic leg; 9. a centering bracket; 10. a spring I; 11. a bearing cap; 12. a centering connecting sleeve; 13. a screw I; 14. a screw II;15; a centering shaft; 16. a deep groove ball bearing; 17. connecting sleeves; 18. connecting a nut; 19. a connecting bolt; 20. a creeping connection sleeve; 21. a creeper shaft; 22. a movable rod; 23. a drive rod; 24. a motor; 25. a coupling; 26. a bevel pinion gear; 27. a large bevel gear; 28. a rubber wheel; 29. a pin shaft; 30. a spring II; 31. a sensor mounting plate; 32. a laser displacement sensor; 33. screwing down the screw; 34. a wireless transmission module; 35. a lithium battery; 36. a screw III; 37. an adjustable support leg.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a blind hole straightness measuring instrument comprises an industrial flat plate 1 and an autocollimator 2, wherein the autocollimator 2 is supported by a base, the industrial flat plate 1 is electrically connected with the autocollimator 2 through a lead, a centering mechanism and an automatic crawling mechanism are arranged in a blind hole, the automatic crawling mechanism comprises a crawling shaft 21, a driving rod 23 and a movable rod 22, the driving rod 23 is rotatably connected with the movable rod 22, a motor 24 is fixedly arranged in the driving rod 23, one end of an output shaft of the motor 24 is fixedly connected with a small bevel gear 26 through a coupler 25, a large bevel gear 27 is meshed and driven on the surface of the small bevel gear 26, a rubber wheel 28 is fixedly connected on the surface of the large bevel gear 27, one ends of the driving rod 23 and the movable rod 22 are rotatably connected with the surface of the crawling shaft 21 through a pin shaft 29, a crawling connecting sleeve 20 is fixedly connected on one side of the crawling shaft 21, a wireless transmission module 34 and a lithium battery 35 are fixedly arranged in the crawling shaft 21, the connecting end of the lithium battery 35 and the motor 24 is electrically connected, the surface of the crawling shaft 21 is fixedly connected with a sensor mounting plate 31 through a spring II30, the right side of the sensor mounting plate 31 is fixedly provided with a laser displacement sensor 32 through a tightening screw 33, the centering mechanism comprises a centering support 9, a centering shaft 15 and a connecting sleeve 17, the centering shaft 15 can be provided with a dial indicator frame, support legs can be replaced according to different using distances, the size can be selected according to the measured hole diameter, the right side of the connecting sleeve 17 is fixedly connected with one side of the crawling connecting sleeve 20 through a connecting nut 18 and a connecting bolt 19, the centering shaft 15 is fixedly connected with the opposite side of the connecting sleeve 17, the surface of the centering shaft 15 is fixedly connected with a bearing cover 11 through a deep groove ball bearing 16, one side of the bearing cover 11 is fixedly provided with a centering connecting sleeve 12 through a screw I13, a screw II14 and a screw III36, the centering support 9 is fixedly arranged on the surface of the bearing cover 11, the surface of the centering support 9 is fixedly connected with a movable measuring point sleeve 7, an elastic supporting leg 8 is connected inside the movable measuring point sleeve 7 in a sliding mode, a spring I10 is fixedly connected between the inside of the movable measuring point sleeve 7 and the opposite side of the elastic supporting leg 8, the left side of the centering support 9 is fixedly connected with a reflector support 6 through a screw III36, a reflector 3 is placed on the left side of the reflector support 6, a reflector pressing plate 5 is fixedly mounted on the left side of the reflector support 6 through a screw IV4, a centering mechanism and an automatic crawling mechanism are arranged, and an optical self-collimation principle is adopted, so that an objective lens receives reflector light source information to perform straightness detection. The requirements for the operator are low and the device can be used in any occasion, and the content which is not described in detail in the specification belongs to the prior art which is known by the person skilled in the art.

When the device works, firstly, the centering mechanism is arranged in a blind hole of a measured piece, the centering mechanism is placed in a vertical state with the autocollimator 2 by visual observation, wherein the elastic supporting leg 8 is arranged at a position of 45 degrees with the highest point, even if the other two adjustable supporting legs are respectively in a vertical state and a horizontal state, a dial indicator frame is arranged on a 15 centering shaft, a measuring head of the dial indicator is contacted with a hole wall, then the dial indicator is placed at the uppermost position, the lowermost position, the left direction and the right direction, two adjustable supporting legs are adjusted according to the difference value of the readings of the dial indicator at two corresponding points until the readings at four positions are consistent, which means that the target center is superposed with the cross section center of the measured hole, then the motor 24 is controlled to drive the small bevel gear 26 to rotate, the motor 24 is connected with the small bevel gear 26 through the coupler 25, the small bevel gear 26 drives the large bevel gear 27 to rotate and simultaneously drives the rubber wheel to rotate 28, through the reaction force of the spring 30, the rubber wheel 28 is tightly attached to the inner hole of a measured part, the back and forth movement is realized, the built-in lithium battery 35 of the automatic crawling mechanism can work in an occasion without a power supply during detection, the built-in wireless transmission module 34 realizes wireless control, the motor can be communicated 24 through the industrial flat plate 1, the automatic control function is realized, the field operation is convenient, the detection efficiency is improved, the detection labor intensity is reduced, the laser displacement sensor 32 is installed in the front of the crawling mechanism, the depth of equipment entering the blind hole can be fed back in real time, the numerical value of the depth can be fed back in real time, finally, the reflector 3 is driven by the double centering mechanism, the movement in the blind hole is more stable, the detection error is reduced, the detection precision is improved, the double centering mechanisms are connected through the centering connecting sleeve 12, and the centering mechanisms are connected through the industrial flat plate 1, the connecting nut 18, the connecting bolt 19, the crawling connecting sleeve 20 is connected with the automatic crawling mechanism, connection is rapid and stable, each part forms modularization, the whole equipment is convenient to carry, rapid connection is achieved through threads, and field use is convenient.

Meanwhile, when detection is carried out: adjusting the height 2 of the autocollimator, observing in the industrial flat plate 1, observing whether a cross reticle of the autocollimator 2 and a cross reticle of the reflector 3 coincide, if not, adjusting the height and the left and right positions of the autocollimator 2 to coincide, starting a button in the industrial flat plate 1, enabling a rubber wheel 28 of an automatic crawling mechanism to move forwards along the inner wall of a part, finally determining the depth value of a blind hole by using a numerical value fed back by a 32 laser displacement sensor according to the requirement of the entering depth, stopping operation in the industrial flat plate 1, recording the deviation value of the autocollimator 2 and the reflector 3 at the moment, continuously starting the button by the industrial flat plate 1, carrying out value taking according to other depths in the repeated operation, and calculating each section of detected numerical value by internal software through the industrial flat plate 1 to obtain the numerical value of the straight line of the blind hole.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a blind hole straightness accuracy measuring apparatu, includes industry flat board (1) and autocollimator (2), and autocollimator (2) pass through the base and support, pass through wire electric connection, its characterized in that between industry flat board (1) and autocollimator (2): a centering mechanism and an automatic crawling mechanism are arranged inside the blind hole;

including crawling axle (21), actuating lever (23) and movable rod (22) in the automatic mechanism of crawling, rotate between actuating lever (23) and movable rod (22) and connect, the inside fixed mounting of actuating lever (23) has motor (24), shaft coupling (25) fixedly connected with bevel pinion (26) is passed through to the one end of motor (24) output shaft, the surface engagement transmission of bevel pinion (26) has big bevel gear (27), the fixed surface of big bevel gear (27) is connected with rubber wheel (28), the one end of actuating lever (23) and movable rod (22) is all rotated through the surface of round pin axle (29) with crawling axle (21) and is connected, one side fixedly connected with of crawling axle (21) is crawled adapter sleeve (20).

2. The blind hole straightness measuring instrument according to claim 1, wherein: the inside fixed mounting of creeper shaft (21) has wireless transmission module (34) and lithium cell (35), and the link electric connection of lithium cell (35) and motor (24), spring II (30) fixedly connected with sensor mounting panel (31) are passed through on the surface of creeper shaft (21), the right side of sensor mounting panel (31) has laser displacement sensor (32) through screwing up screw (33) fixed mounting.

3. The blind hole straightness measuring instrument according to claim 1, wherein: the centering mechanism comprises a centering support (9), a centering shaft (15) and a connecting sleeve (17), the right side of the connecting sleeve (17) is fixedly connected with one side of a crawling connecting sleeve (20) through a connecting nut (18) and a connecting bolt (19), and the centering shaft (15) is fixedly connected with the opposite side of the connecting sleeve (17).

4. The blind hole straightness measuring instrument according to claim 3, wherein: the surface of the centering shaft (15) is fixedly connected with a bearing cover (11) through a deep groove ball bearing (16), and one side of the bearing cover (11) is fixedly provided with a centering connecting sleeve (12) through a screw I (13), a screw II (14) and a screw III (36).

5. The blind hole straightness measuring instrument according to claim 4, wherein: the centering support (9) is fixedly installed on the surface of the bearing cover (11), the surface of the centering support (9) is fixedly connected with a movable measuring point sleeve (7), and an elastic supporting leg (8) is connected inside the movable measuring point sleeve (7) in a sliding mode.

6. The blind hole straightness measuring instrument according to claim 5, wherein: a spring I (10) is fixedly connected between the inside of the movable measuring point sleeve (7) and the opposite side of the elastic supporting leg (8), a reflector support (6) is fixedly connected to the left side of the centering support (9) through a screw III (36), a reflector (3) is placed on the left side of the reflector support (6), and a reflector pressure plate (5) is fixedly mounted on the left side of the reflector support (6) through a screw IV (4).