CN217877426U

CN217877426U - Mounting hole measuring tool

Info

Publication number: CN217877426U
Application number: CN202222223459.0U
Authority: CN
Inventors: 林霖玉; 吴东海; 梁健恒; 陈钦成
Original assignee: Guangdong Guotong Kenuoer Rail Vehicle System Equipment Co ltd
Current assignee: Guangdong Guotong Kenuoer Rail Vehicle System Equipment Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-22
Anticipated expiration: 2032-08-23

Abstract

The utility model provides a mounting hole measuring tool, including the depth gauge and with depth gauge fixed connection's location inflation chock plug, location inflation chock plug including connect the lid, with be connected lid fixed connection's bush, set up in the bush and with bush threaded connection's tapering axle and with the inflation piece of tapering axle looks butt. Connect lid and depth chi fixed connection, the inflation piece includes butt portion and inflation portion, butt portion butt in the tapering axle, and the inflation portion stretches out outside the bush from the inflation hole of locating the bush, and under the rotation of tapering axle, along the radial motion of tapering axle under the effect of conical surface. The utility model provides a mounting hole measuring tool can rotate the extension of tapering axle regulation inflation piece according to the difference of mounting hole size, utilizes inflation piece and mounting hole inner wall butt, realizes the location fixed, need not frequently to change the location end cap when measuring not unidimensional mounting hole.

Description

Mounting hole measuring tool

Technical Field

The utility model relates to a fixture attachment technical field especially relates to a mounting hole measuring tool.

Background

The position degree and the symmetry degree of a mounting hole need to be measured aiming at the traditional clamp product for brake control in the rail industry, the mounting hole with a fixed size can only be measured by using the conventional measurement auxiliary tool, and the measurement requirements can be met only by measuring the mounting holes with different sizes by using the measurement auxiliary tool with different sizes or directly using three-coordinate equipment. Therefore, the inspection and measurement cost is greatly increased, the inspection efficiency is reduced, and expensive labor and equipment cost is brought to enterprises.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mounting hole measuring tool is provided with location inflation chock plug, and location inflation chock plug is through rotating the tapering axle with the inflation piece outwards, until inflation piece butt joint to the inner wall of mounting hole, realizes mounting hole measuring tool's fixed, has solved among the prior art and has measured auxiliary fixtures size fixed, can only measure the problem of fixed dimension's mounting hole.

In order to realize one of the above-mentioned utility model purposes, an embodiment of the utility model provides a mounting hole measuring tool, including the depth gauge and with depth gauge fixed connection's location inflation chock plug, location inflation chock plug includes:

the connecting cover is fixedly connected with the depth gauge;

the bushing is fixedly connected with the connecting cover and is provided with a plurality of expansion holes;

the taper shaft is arranged in the bushing, is in threaded connection with one end, far away from the connecting cover, of the bushing and protrudes out of the bushing, comprises a conical surface, and rotates along the threads to enable the taper shaft to move along the axial direction of the taper shaft;

the expansion blocks are arranged in the same number as the expansion holes and comprise abutting parts and expansion parts, the abutting parts abut against the taper shaft, and the expansion parts extend out of the bushing from the expansion holes and move along the radial direction of the taper shaft under the action of the conical surface.

As a further improvement of an embodiment of the present invention, the abutting portion extends from the end surface of the expansion portion close to the one end of the taper shaft to the periphery to at least partially cover the expansion hole.

As a further improvement of an embodiment of the present invention, the taper shaft further includes a taper portion and an adjustment portion, the taper surface is formed in the taper portion, the adjustment portion is provided with a thread, and is connected with the bushing thread through the thread.

As a further improvement of an embodiment of the present invention, the elastic member further includes an elastic member abutting against the abutting portion between the one end of the tapered portion and the bush.

As a further improvement of an embodiment of the present invention, the bushing is provided with a plurality of through holes, the number of the through holes is the same as the number of the expansion blocks, the through holes are arranged on one side of the expansion hole close to the tapered portion, and screw plugs are fixed in the through holes;

the elastic piece is a spring, one end of the spring is connected with the screw plug, and the other end of the spring is abutted against the abutting portion.

As a further improvement of an embodiment of the present invention, the expansion block is made of an elastic material.

As a further improvement of an embodiment of the present invention, the present invention further comprises an auxiliary block, the auxiliary block is far away from the taper shaft to connect one end of the cover to be fixed, and the auxiliary block is rotated with the taper shaft.

As a further improvement of an embodiment of the present invention, a plurality of expansion holes are provided on the liner at regular intervals.

As a further improvement of an embodiment of the present invention, the present invention further includes a connecting seat, one side of the connecting seat is fixedly connected to the depth gauge, and the other side is fixedly connected to the positioning expansion plug.

As a further improvement of an embodiment of the present invention, the connecting seat is C-shaped, the C-shaped connecting seat includes a connecting portion and a positioning portion vertically connected to and extending in the same direction at both ends of the connecting portion, the positioning expansion plug is fixed to one side of the connecting portion where the positioning portion is provided.

The utility model provides a one or more technical scheme has following technological effect or advantage at least:

the part for positioning in the mounting hole measuring tool provided by the utility model is a positioning expansion plug head, a taper shaft and an expansion block are arranged in the positioning expansion plug head, and the taper shaft is rotated to push the expansion block to protrude outwards by utilizing the conical surface of the taper shaft, so that the outer diameter of the positioning expansion plug head can be enlarged, and the mounting hole with larger size is suitable for; and the expansion block loses thrust and returns to the original outer diameter of the positioning expansion plug head again by reversely rotating the taper shaft, so that the expansion plug head can be applied to a mounting hole with a smaller size. The utility model provides a location inflation chock plug of mounting hole measuring tool can be according to the mounting hole internal diameter size regulation, and the chock plug in the measuring tool need not frequently to be changed because of the mounting hole size difference in the measurement of the mounting hole of applicable not unidimensional mounting hole.

Drawings

Fig. 1 is a schematic structural diagram of a mounting hole measuring tool in an embodiment of the present invention.

Fig. 2 is a schematic view of the positioning of the expansion plug head of fig. 1.

Fig. 3 is a front view of the positioning expansion plug of fig. 2.

Fig. 4 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A in fig. 3.

1. Positioning an expansion plug head; 11. a connecting cover; 12. a bushing; 121. an expansion hole; 122. a through hole; 13. a taper shaft; 131. a tapered portion; 132. an adjustment section; 14. an expansion block; 141. an expansion part; 142. an abutting portion; 15. a screw plug; 16. a spring; 17. a nut; 2. a connecting seat; 21. a connecting portion; 22. a positioning part; 3. a depth gauge; 4. and a fixing member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As used herein, terms such as "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to relative spatial positions for purposes of convenience in describing the relationship of one element or feature to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The embodiment of the utility model provides a mounting hole measuring tool, as shown in fig. 1-4, including depth chi 3 and with depth chi 3 fixed connection's location inflation chock plug 1, location inflation chock plug 1 including connect lid 11, with connect lid 11 fixed connection's bush 12, set up the tapering axle 13 in bush 12 and with the inflation piece 14 of tapering axle 13 looks butt. The connecting cover 11 is fixedly connected with the depth gauge 3; the bushing 12 is provided with a plurality of expansion holes 121; the taper shaft 13 is in threaded connection with one end, far away from the connecting cover 11, of the bushing 12 and protrudes out of the bushing 12, the taper shaft 13 comprises a conical surface, and the taper shaft 13 rotates along the threads to enable the taper shaft 13 to move along the axial direction of the taper shaft; the expansion blocks 14 are provided in the same number as the expansion holes 121, and include abutting portions 142 and expansion portions 141, the abutting portions 142 abut against the tapered shaft 13, and the expansion portions 141 extend from the expansion holes 121 to the outside of the bushing 12, and move in the radial direction of the tapered shaft 13 by the tapered surface.

Specifically, mounting hole measuring tool still includes connecting seat 2, and connecting seat 2 is the C style of calligraphy, and C style of calligraphy connecting seat 2 includes connecting portion 21 and location portion 22, and location portion 22 sets up perpendicularly in connecting portion 21 both ends and syntropy setting. Depth chi 3 is fixed in connecting portion 21 through screw or other fixed mode and deviates from location portion 22 one side, in this embodiment, 3 fixedly connected with mounting 4 of depth chi, and mounting 4 sets up with 3 length direction of depth chi perpendicularly, and the both ends of mounting 4 are respectively through the both ends fixed connection of screw with connecting portion 21 to realize depth chi 3 and connecting seat 2 fixed, can avoid the processing to depth chi 3 simultaneously and realize being connected with location inflation chock plug 1.

Location inflation chock plug 1 is fixed in connecting portion 21 through screw or other fixed mode and is close to location portion 22 one side, and C style of calligraphy connecting seat 2 can realize preliminary positioning action to the work piece that awaits measuring of fixed width, and C style of calligraphy connecting seat 2 utilizes the location portion 22 at both ends to make the work piece card that awaits measuring of fixed width go into connecting seat 2, prevents that mounting hole measuring tool from having angular deviation along 3 length direction of degree of depth chi, and the data that leads to measuring is inaccurate.

In addition, if the mounting hole size differs great, need to change not unidimensional location inflation chock plug 1, consequently location inflation chock plug 1 and depth chi 3 need can dismantle fixedly, and the width of location inflation chock plug 1 and depth chi 3 is close, and the two lug connection generally needs processing on depth chi 3, can cause the damage of depth chi 3, and the setting of connecting seat 2 can prevent the damage of depth chi 3.

Further, the expansion block 14 is made of an elastic material, the abutting portion 142 is formed to extend from an end surface of the expansion portion 141 near one end of the taper shaft 13 to the periphery, and the abutting portion 142 at least partially covers the expansion hole 121, and may exceed the expansion hole 121 in the axial direction of the taper shaft 13, and may also exceed the expansion hole 121 in the axial direction perpendicular to the taper shaft 13, so as to prevent the expansion block 14 from falling out of the expansion hole 121 and the bush 12.

Further, as shown in fig. 4, the taper shaft 13 includes a taper portion 131 and an adjusting portion 132, the taper surface is formed on the taper portion 131, the adjusting portion 132 is provided with a thread, one end of the bushing 12 away from the connection cover 11 is provided with a thread matched with the thread of the adjusting portion 132, the bushing 12 is connected with the adjusting portion 132 through the thread, and when the taper shaft 13 rotates, the taper shaft 13 is close to or away from the connection cover 11 along the axial direction thereof under the action of the thread.

When the taper shaft 13 is far away from the connecting cover 11, the conical surface is gradually close to the expansion hole 121, the expansion block 14 is pushed to the axial direction far away from the taper shaft 13 by the thrust of the conical surface, the abutting part 142 is tightly attached to the conical surface under the elastic action, and the expansion part 141 extends out of the bushing 12, so that the positioning expansion plug head 1 can extend into a mounting hole with a larger size and realize fixed positioning by abutting the expansion block 14 with the inner wall of the mounting hole; after the depth gauge 3 finishes measuring, the taper shaft 13 is rotated reversely, the taper shaft 13 moves towards the direction close to the connecting cover 11, the conical surface is gradually far away from the expansion hole 121, the expansion hole 121 gradually loses thrust, the expansion hole is not abutted to the inner wall of the mounting hole, and the positioning expansion plug head 1 can be taken out. In the initial state, the end of the tapered portion 131 away from the adjustment portion 132 abuts against the connection cap 11.

Of course, the present invention is not limited to the setting direction of the cone 131 as shown in fig. 4, and the cone 131 may be set reversely, that is, the end with larger area of the cone 131 is connected to the adjusting portion 132, and the end with smaller area is close to the connecting cover 11. At this time, when the taper shaft 13 approaches the connecting cover 11, the expansion block 14 is pushed by the taper surface to the axial direction far away from the taper shaft 13; when the taper shaft 13 moves away from the connection cover 11, the expansion block 14 loses the thrust.

Further, a plurality of expansion holes 121 on the bush 12 are evenly spaced, and meanwhile, the expansion blocks 14 are abutted to the taper shaft 13 at even intervals, so that when the taper shaft 13 rotates, the stress of the expansion blocks 14 is even, and the abutting is more stable when the inner wall of the mounting hole is abutted.

Furthermore, a plurality of through holes 122 provided with threads are formed in the bushing 12, the through holes 122 are formed in one side, close to the tapered portion 131, of the expansion block 14, the mounting hole measuring tool further comprises an elastic piece and a screw plug 15, and the screw plug 15 is fixed in the through holes 122 through the threads. In the present embodiment, the abutting portion 142 extends toward the tapered portion 131, and both ends of the elastic member abut against the abutting portion 142 and the screw plug 15, respectively.

When the taper shaft 13 moves away from the connecting cover 11, the taper surface not only pushes the expansion block 14 outwards, but also compresses the elastic piece; when the taper shaft 13 moves towards the direction close to the connecting cover 11, the expansion block 14 moves towards the direction close to the taper shaft 13 under the resilience force of the elastic piece, and automatic resilience of the expansion block 14 is realized.

In this embodiment, the elastic member is a spring 16, one end of the spring 16 can be connected to the threaded plug by a thread, and the other end of the spring 16 abuts against the abutting portion 142, so that the expansion block 14 automatically rebounds and the spring 16 is relatively fixed in the bushing 12.

Furthermore, the mounting hole measuring tool further comprises an auxiliary block, the auxiliary block is fixedly connected with one end, far away from the connecting cover 11, of the taper shaft 13, the auxiliary block is non-circular, and the taper shaft 13 can be rotated by small force. The auxiliary block in this embodiment is a nut 17, and the threads in the nut 17 match the threads on the adjustment portion 132 of the tapered shaft 13.

It should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be appreciated by those skilled in the art that the specification as a whole may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

The above list of detailed descriptions is only for the specific description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a mounting hole measuring tool which characterized in that, including the depth gauge and with depth gauge fixed connection's location inflation chock plug, location inflation chock plug includes:

the connecting cover is fixedly connected with the depth gauge;

the expansion blocks are provided with the same number as the expansion holes and comprise abutting parts and expansion parts, the abutting parts abut against the taper shaft, and the expansion parts extend out of the bushing from the expansion holes and move along the radial direction of the taper shaft under the action of the conical surface.

2. The mounting hole measuring tool according to claim 1, wherein the abutting portion extends circumferentially from an end surface of the expanded portion near the one end of the tapered shaft to at least partially cover the expanded hole.

3. The mounting hole measuring tool of claim 1, wherein the taper shaft further comprises a tapered portion and an adjusting portion, the tapered portion being formed at the tapered portion, the adjusting portion being provided with a thread and being threadedly coupled with the bushing.

4. The mounting hole measuring tool of claim 3, further comprising an elastic member abutting between an end of the abutting portion near the tapered portion and the bushing.

5. The mounting hole measuring tool according to claim 4, wherein the bushing is provided with a plurality of through holes, the number of the through holes is the same as that of the expansion blocks, the through holes are arranged on one side, close to the conical portion, of each expansion hole, and a screw plug is fixed in each through hole;

6. The mounting hole measurement tool of claim 5, wherein the expansion block is made of an elastic material.

7. The mounting hole measuring tool of claim 1, further comprising an auxiliary block, wherein the auxiliary block is fixedly connected with one end of the taper shaft far away from the connecting cover to assist in rotating the taper shaft.

8. The mounting hole measuring tool of claim 1, wherein the plurality of expansion holes in the bushing are evenly spaced.

9. The mounting hole measuring tool of claim 1, further comprising a connecting base, wherein one side of the connecting base is fixedly connected with the depth gauge, and the other side of the connecting base is fixedly connected with the positioning expansion plug.

10. The mounting hole measuring tool according to claim 9, wherein the connecting base is C-shaped, the C-shaped connecting base includes a connecting portion and a positioning portion vertically connected to and extending in the same direction as both ends of the connecting portion, and the positioning expansion plug is fixed to a side of the connecting portion where the positioning portion is provided.