CN220187688U - Coaxiality detection device - Google Patents

Abstract

The utility model relates to a coaxiality detection device. The device comprises a bracket and a detection assembly, wherein the bracket is provided with a positioning groove, the positioning groove comprises two opposite supporting groove walls, and the supporting groove walls are used for clamping and supporting a workpiece to be detected; the detection head of the detection assembly is in sliding contact with the outer peripheral surface of the detected workpiece; the measured workpiece is contacted with the two supporting groove walls of each positioning groove in the rotating process, and the detection head slides relative to the measured workpiece so as to measure the coaxiality of the measured workpiece. The workpiece to be tested is in contact with the two supporting groove walls of each positioning groove in the rotation process, so that the position of the workpiece to be tested is limited, if the coaxiality of the workpiece to be tested is good, the rotation axis of the workpiece to be tested is the axis of the workpiece to be tested, if the coaxiality of the workpiece to be tested is poor, the rotation axis of the workpiece to be tested is always changed, the coaxiality of the workpiece to be tested can be measured through the detection head of the detection assembly, and the workpiece to be tested is only placed on the positioning groove, so that the test is simple and convenient, and the test efficiency is improved.

Description

Coaxiality detection device

Technical Field

The utility model relates to the technical field of coaxiality testing, in particular to a coaxiality detection device.

Background

With the progress of technology, the shared bicycle has higher and higher requirements on riding labor saving. To the axiality measurement of bicycle axletree, at present often realize the centre gripping of holder to the one end of axletree through rotating screw etc. and detect first sliding contact in the other end of axletree, rotate through driving piece drive holder to drive the axletree and rotate, make the detection head slide a week at the excircle surface of being surveyed the work piece, thereby measure the axiality of axletree, nevertheless in the test process, the holder needs to realize centre gripping or release axletree through modes such as rotating screw etc. for test operation is complicated, inefficiency.

Disclosure of Invention

Based on this, it is necessary to realize the centre gripping of holder to the one end of axletree through rotating screw etc. among the prior art, and detection head sliding contact is in the other end of axletree, through driving piece drive holder rotation to drive the axletree and rotate, make the detection head slide a week at the excircle surface of being surveyed the work piece, thereby measure the axiality of axletree, nevertheless in the test process, the holder needs to realize centre gripping or release axletree through modes such as rotating screw, makes test operation complicated, inefficiency's technical problem, provides a axiality detection device.

A coaxiality detection device comprising:

the bracket is provided with at least one positioning groove, the positioning groove comprises two opposite supporting groove walls, and the supporting groove walls are used for clamping and supporting the workpiece to be tested;

the detection assembly is connected to the bracket, and a detection head of the detection assembly is in sliding contact with the outer peripheral surface of the workpiece to be detected;

the measured workpiece is configured to be in contact with both supporting groove walls of each positioning groove during rotation, and the detection head slides relative to the outer peripheral surface of the measured workpiece to measure coaxiality of the measured workpiece.

In one embodiment, the same positioning groove comprises two supporting groove walls, and the distance between the two supporting groove walls gradually increases from the groove bottom of the positioning groove to the direction of the notch.

In one embodiment, the support is provided with two limiting walls arranged at intervals along the extending direction of the positioning groove, and the two limiting walls are respectively used for being abutted to two step walls on the workpiece to be tested so as to limit the workpiece to be tested to move along the extending direction of the positioning groove.

In one embodiment, the number of the positioning slots is two, the support comprises a base and two supporting arms arranged at intervals along the extending direction of the positioning slots, each supporting arm is connected to the base, the two positioning slots are respectively arranged at one ends of the two supporting arms far away from the base, and one side of the two opposite sides of the two supporting arms is configured into two limiting walls.

In one embodiment, the support further comprises a connecting piece, two ends of the connecting piece are respectively connected to the two supporting arms, the two supporting arms are both movably connected to the base, and the connecting piece is configured to be capable of extending and retracting along the extending direction of the positioning groove.

In one embodiment, the detection head is located above one of the positioning slots.

In one embodiment, the detection assembly is magnetically attached to the support.

In one embodiment, the detection assembly comprises a magnetic attraction block, a connecting arm and a measuring instrument, one end of the connecting arm is connected with the measuring instrument, the other end of the connecting arm is connected with the magnetic attraction block, the magnetic attraction block is magnetically attracted with the support to be connected, and the detection head is arranged on the measuring instrument.

In one embodiment, the connecting arm is provided with a universal joint, and the connecting arm is connected with the magnetic block or the measuring instrument through the universal joint.

In one embodiment, the number of the detecting components is two, and the detecting components are used for respectively measuring different test areas of the tested workpiece.

The beneficial effects are that:

the coaxiality detection device comprises a bracket and a detection assembly, wherein the bracket is provided with at least one positioning groove, and the positioning groove comprises two opposite supporting groove walls, wherein the supporting groove walls are used for clamping and supporting a workpiece to be detected; the detection component is connected with the bracket, and a detection head of the detection component is in sliding contact with the outer peripheral surface of the detected workpiece; the workpiece to be measured is configured to be in contact with both support groove walls of each positioning groove during rotation, and the detection head slides relative to the outer peripheral surface of the workpiece to be measured to measure coaxiality of the workpiece to be measured. According to the utility model, the workpiece to be tested is supported by the positioning grooves, and is contacted with the two supporting groove walls of each positioning groove in the rotating process, so that the position of the workpiece to be tested is limited, if the coaxiality of the workpiece to be tested is good, the rotating axis of the workpiece to be tested is the axis of the workpiece to be tested, if the coaxiality of the workpiece to be tested is poor, the rotating axis of the workpiece to be tested is always changed, the coaxiality of the workpiece to be tested can be measured by the detection head of the detection assembly sliding one circle on the outer circle surface of the workpiece to be tested, and the workpiece to be tested is only placed on the positioning grooves and clamped and supported by the two supporting groove walls which are arranged oppositely, and clamping or releasing of the workpiece to be tested by the clamping piece is realized without involving rotating screws and the like, so that the testing of the workpiece to be tested is simpler and more convenient, and the testing efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of a coaxiality detecting device according to an embodiment of the utility model;

fig. 2 is a partial exploded view of a coaxiality detecting apparatus according to an embodiment of the utility model.

Reference numerals:

100-bracket; 110-positioning grooves; 111-support groove walls; 120-limiting walls; 130-a base; 140-supporting arms; 150-connecting sheets; 200-detecting components; 210-a detection head; 220-magnetic attraction blocks; 230-connecting arms; 240-measuring instrument; 300-a workpiece to be tested; 310-step wall; 320-test area.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a coaxiality detecting device according to an embodiment of the utility model; fig. 2 is a partial exploded view of a coaxiality detecting apparatus according to an embodiment of the utility model. The coaxiality detection device provided by the embodiment of the utility model comprises a bracket 100 and a detection assembly 200, wherein the bracket 100 is provided with at least one positioning groove 110, the positioning groove 110 comprises two opposite supporting groove walls 111, and the supporting groove walls 111 are used for clamping and supporting a workpiece 300 to be detected; the detection assembly 200 is connected to the bracket 100, and the detection head 210 of the detection assembly 200 is in sliding contact with the outer circumferential surface of the workpiece 300 to be detected; the measured workpiece 300 is configured to contact both support groove walls 111 of each positioning groove 110 during rotation, and the detection head 210 slides with respect to the outer circumferential surface of the measured workpiece 300 to measure coaxiality of the measured workpiece 300.

Specifically, the present utility model supports the workpiece 300 through the positioning groove 110, and in the rotation process of the workpiece 300, the workpiece 300 contacts with the two supporting groove walls 111 of each positioning groove 110, so as to define the position of the workpiece 300, if the coaxiality of the workpiece 300 is good, the rotation axis of the workpiece 300 is the axis of the workpiece 300, if the coaxiality of the workpiece 300 is poor, the rotation axis of the workpiece 300 is always changed, and the coaxiality of the workpiece can be measured by sliding the detection head 210 of the detection assembly 200 on the outer circle surface of the workpiece 300 for one circle, and the workpiece 300 is only placed on the positioning groove 110 and clamped and supported by the two supporting groove walls 111 which are oppositely arranged, and the clamping or releasing of the clamping piece to the workpiece 300 is realized without involving a rotating screw, so that the test of the workpiece 300 is simpler, more convenient and the test efficiency is improved.

Further, in this embodiment, the end of the workpiece 300 is pinched by a hand to rotate the workpiece 300, so that the workpiece 300 can contact both of the two supporting groove walls 111 of each positioning groove 110 during rotation, and at the same time, the interference to other components can be reduced by pinching the end of the workpiece 300 by a hand. In other embodiments, the workpiece 300 may be driven to rotate by a manipulator, so long as the workpiece 300 always contacts with the two supporting groove walls 111 of each positioning groove 110 during the rotation process.

It should be noted that, the upper and lower limit values of the test area 320 of the workpiece 300, i.e., the coaxiality of the workpiece 300, can be measured by sliding the test head 210 of the test assembly 200 one circle on the outer circumferential surface of the workpiece 300.

It should be noted that the supporting groove wall 111 is a specially precisely machined plane, and the workpiece 300 to be measured is cylindrical, and when the workpiece 300 is placed in the positioning groove 110, a dotted line contact is formed between the two supporting groove walls 111.

It should be noted that, in the present embodiment, the workpiece 300 to be measured is an axle, but the utility model is not limited thereto, and in other embodiments, other axles may be used.

Referring to fig. 2, in one embodiment, the distance between two supporting groove walls 111 included in the same positioning groove 110 gradually increases from the groove bottom of the positioning groove 110 to the direction of the groove opening, so that the workpiece 300 to be tested can be stably supported, and the workpiece 300 to be tested can be conveniently placed. Preferably, the positioning groove 110 is a V-shaped groove.

Referring to fig. 1 and 2, in one embodiment, two limiting walls 120 are disposed on the bracket 100 at intervals along the extending direction of the positioning slot 110, and the two limiting walls 120 are respectively used for abutting against two step walls 310 on the workpiece 300 to be tested, so as to limit the workpiece 300 to move along the extending direction of the positioning slot 110.

Specifically, the tested workpiece 300 has a plurality of shoulders, two shoulders opposite to each other on the tested workpiece 300 are selected to be respectively abutted against two limiting walls 120 on the bracket 100, so that the tested workpiece 300 is limited to move along the extending direction of the positioning slot 110, and the tested workpiece 300 does not axially move in the rotating process, so that the detection head 210 can accurately slide along the outer circle surface of the test area 320 for one circle, and the coaxiality of the tested workpiece 300 is accurately measured.

Referring to fig. 2, in one embodiment, the number of the positioning slots 110 is two, the bracket 100 includes a base 130 and two supporting arms 140 disposed at intervals along the extending direction of the positioning slots 110, each supporting arm 140 is connected to the base 130, the two positioning slots 110 are respectively disposed at one ends of the two supporting arms 140 away from the base 130, and two limiting walls 120 are configured at opposite sides of the two supporting arms 140.

Specifically, the two positioning grooves 110 support the workpiece 300 to be measured, so that the stability of supporting the workpiece 300 to be measured is improved, and the two limiting walls 120 are formed on the opposite sides of the supporting arm 140, so that the process is reduced, and the cost is saved.

Further, the extending direction of the positioning groove 110 is along the horizontal direction, and the workpiece 300 to be measured extends along the extending direction of the positioning groove 110 under the support of the two positioning grooves 110, so that the detecting head 210 can accurately measure the jumping value of the testing area 320 during the rotation of the workpiece 300 to be measured, and the measuring accuracy is improved. In this embodiment, the extending direction of the positioning slot 110 is the length direction of the base 130, and in other embodiments, other directions may be also used.

In other embodiments, the number of positioning slots 110 may be other.

Referring to fig. 1 and 2, in one embodiment, the bracket 100 further includes a connecting piece 150, two ends of the connecting piece 150 are respectively connected to the two support arms 140, the two support arms 140 are both movably connected to the base 130, and the connecting piece 150 is configured to be capable of extending and retracting along the extending direction of the positioning slot 110.

Specifically, the two ends of the connecting piece 150 are respectively connected to the two supporting arms 140, so that the stability of the two supporting arms 140 is improved, meanwhile, the two supporting arms 140 are both movably connected to the base 130, and the connecting piece 150 can be arranged in a telescopic manner along the extending direction of the positioning groove 110, so that the position between the two supporting arms 140 is adjustable, different types of workpieces 300 can be adapted, two step walls 310 of each workpiece 300 can be abutted to one opposite side of the two supporting arms 140, and the adaptability is high.

The support arm 140 is movably connected with the base 130, which may be magnetic attraction type, or may be realized by arranging a chute on the base 130 and arranging a slide block on the support arm 140 and by inserting and matching the chute with the slide block, and the specific arrangement mode is not limited, so long as the position of the support arm 140 relative to the base 130 can be adjusted.

Referring to fig. 1, in one embodiment, the detecting head 210 is located above a positioning slot 110.

Specifically, the test area 320 is supported by the positioning slot 110, so that the shaking of the test area 320 during the measurement process of the tested head 210 can be reduced, the accuracy of the test head 210 in measuring the jumping value of the test area 320 is improved, and the accuracy of measuring the coaxiality of the tested workpiece 300 is further improved.

Referring to fig. 1 and 2, in one embodiment, the sensing assembly 200 is magnetically attached to the support 100.

Specifically, the detection assembly 200 is magnetically adsorbed to the support 100, so that the position of the detection assembly 200 relative to the workpiece 300 to be measured is flexibly adjustable, and thus, the position of the detection assembly 200 can be conveniently adjusted to measure the multiple test areas 320 of the workpiece 300 to be measured, and the coaxiality of the workpiece 300 to be measured can be simply and efficiently measured.

Referring to fig. 1 and 2, in one embodiment, the detection assembly 200 includes a magnetic attraction block 220, a connection arm 230 and a measuring instrument 240, one end of the connection arm 230 is connected to the measuring instrument 240, the other end is connected to the magnetic attraction block 220, the magnetic attraction block 220 is magnetically attracted to the support 100, and the detection head 210 is disposed on the measuring instrument 240.

Specifically, through the magnetic attraction connection of the magnetic attraction block 220 and the base 130, the position adjustment of the magnetic attraction block 220 relative to the base 130 is facilitated, so that the measuring instrument 240 is in sliding contact with the test area 320, and the arrangement of the connecting arm 230 can play a supporting role and can also reduce the interference of the magnetic attraction force of the magnetic attraction block 220 on the tested piece. The measuring instrument 240 may be a dial indicator or a dial indicator, and a specific usage method of the measuring instrument 240 is a prior art, so that a detailed description is omitted.

Referring to fig. 1 and 2, in one embodiment, a universal joint is provided on the connection arm 230, and the connection arm 230 is connected to the magnet 220 or the measuring instrument 240 through the universal joint.

Specifically, the universal joint is arranged, so that the measuring instrument 240 can rotate conveniently, and is more flexible, and the detecting head 210 can be in more accurate sliding contact with the testing area 320.

Referring to fig. 1, in one embodiment, the number of the detecting assemblies 200 is two, for respectively measuring different test areas 320 of the workpiece 300 under test.

Specifically, the two measuring instruments 240 respectively correspond to the two positioning slots 110, and the two measuring instruments 240 can measure the two test areas 320 at the same time, so that the test efficiency is improved, and meanwhile, the jump value ranges of the two test areas 320 can be compared, so that the error of the measurement result can be reduced, and the more accurate coaxiality of the tested workpiece 300 can be obtained. The two magnetic blocks 220 are respectively located at opposite sides of the two support arms 140, so that interference to the support arms 140 and the connecting piece 150 can be reduced and adaptability can be improved in the process that the magnetic blocks 220 move relative to the base 130.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An axiality detecting device, characterized in that the axiality detecting device includes:

the support is provided with at least one positioning groove, the positioning groove comprises two opposite supporting groove walls, the supporting groove walls are used for clamping and supporting a tested workpiece, two limiting walls are arranged on the support at intervals along the extending direction of the positioning groove, and the two limiting walls are respectively used for being abutted to two step walls on the tested workpiece so as to limit the tested workpiece to move along the extending direction of the positioning groove;

the detection assembly is connected to the bracket, and a detection head of the detection assembly is in sliding contact with the outer peripheral surface of the workpiece to be detected;

the tested workpiece is configured to be rotated with two supporting groove walls of each positioning groove

All contact, and the detection head slides relative to the outer peripheral surface of the detected workpiece so as to measure the coaxiality of the detected workpiece.

2. The coaxiality detection device according to claim 1, wherein the distance between two supporting groove walls included in the same positioning groove gradually increases from the groove bottom of the positioning groove to the direction of the notch.

3. The coaxiality detection device according to claim 1, wherein the extending direction of the positioning groove is along a horizontal direction, so that the workpiece to be detected extends along the horizontal direction under the support of the positioning groove.

4. The coaxiality detection device according to claim 1, wherein the number of the positioning grooves is two, the support comprises a base and two supporting arms which are arranged at intervals along the extending direction of the positioning grooves, each supporting arm is connected to the base, the two positioning grooves are respectively arranged at one ends of the two supporting arms far away from the base, and two limiting walls are formed on the opposite sides of the two supporting arms.

5. The coaxiality detection device according to claim 4, wherein the bracket further comprises a connecting piece, two ends of the connecting piece are respectively connected to two supporting arms, the two supporting arms are movably connected to the base, and the connecting piece is configured to be telescopic along the extending direction of the positioning groove.

6. The coaxiality detection device according to claim 1, wherein the detection head is located above one of the positioning grooves.

7. The coaxiality detection device according to any one of claims 1-6, wherein the detection assembly is magnetically attached to the bracket.

8. The coaxiality detection device according to claim 7, wherein the detection assembly comprises a magnetic attraction block, a connecting arm and a measuring instrument, one end of the connecting arm is connected with the measuring instrument, the other end of the connecting arm is connected with the magnetic attraction block, the magnetic attraction block is magnetically attracted with the bracket, and the detection head is arranged on the measuring instrument.

9. The coaxiality detection device according to claim 8, wherein a universal joint is arranged on the connecting arm, and the connecting arm is connected with the magnetic attraction block or the measuring instrument through the universal joint.

10. The coaxiality inspection device according to any one of claims 1 to 6, wherein the number of the inspection components is two for respectively measuring different test areas of the workpiece to be inspected.