CN218583922U

CN218583922U - Nut position degree detection tool

Info

Publication number: CN218583922U
Application number: CN202222508969.2U
Authority: CN
Inventors: 高龙亮
Original assignee: Shanghai Jusheng Technology Co Ltd
Current assignee: Shanghai Jusheng Technology Co Ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-03-07
Anticipated expiration: 2032-09-21

Abstract

The embodiment of the utility model provides a nut position degree detects instrument should detect the instrument and include the concentric pole of nut and the concentric cover of panel beating that has the measuring aperture. When detecting, the one end and the nut threaded connection of nut concentric rod, the concentric cover of panel beating and panel beating jogged joint, stretch out from the measuring hole of the concentric cover of panel beating hole and panel beating the other end of nut concentric rod. This detection tool easy operation can shift the relative position relation between nut and the panel beating hole to the outside, then uses the clearance chi can high efficiency accomplish the measurement, has realized the measuring quantization, is convenient for adjust the mounted position.

Description

Nut position degree detection tool

Technical Field

The utility model relates to a detect technical field, concretely relates to nut position degree detects instrument.

Background

The automobile body assembly is mainly formed by assembling stamping parts through welding and bolts, and then the sub-assemblies are spliced and welded again to form the assembly. The common nut welding process comprises the following steps: firstly, the nut and the substrate are welded together, and then the substrate and the metal plate are welded. When the base plate and the metal plate are welded, the position precision requirement, namely the nut position degree requirement, generally exists between the nut on the base plate and the metal plate hole on the metal plate.

The existing nut position measurement methods include visual inspection, direct detection with a go-no-go gauge, scribe measurement and measurement using a three-coordinate device. The nut offset cannot be quantified through visual inspection and go-no-go gauge measurement, and the tool is not beneficial to quantitative adjustment; the marking and measuring method is easily limited by space, so that the interference between the vernier caliper and a metal plate cannot be measured, and meanwhile, if the offset of the position of the nut is large, the marking and measuring method can interfere with the trimming of a metal plate hole in the marking process; the three-coordinate equipment measuring method needs to use three-coordinate equipment and a workpiece positioning tool, and is long in measuring time and high in cost.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a nut position degree detects instrument, easy operation can shift the relative position relation between nut and the panel beating hole to the outside, can detect the outside nut position degree of shifting to through clearance chi high efficiency, has solved the unable problem of quantifying, interfering and measuring the convenience difference of current measurement mode.

The embodiment of the utility model provides a nut position degree detects instrument, it includes the concentric pole of nut and the concentric cover of panel beating that has the measuring aperture to detect the instrument, when examining, the concentric pole of nut and nut threaded connection, the concentric cover of panel beating is connected with the panel beating hole, the concentric pole of nut is followed the panel beating hole and the concentric cover of panel beating stretches out in the measuring aperture.

Further, the nut concentric rod includes a connecting portion and a first measuring portion that are coaxially disposed in a height direction, the connecting portion having an external thread connected with the nut.

Further, the first measuring part is of a regular polygon prism structure, the measuring holes are regular polygon holes, and the number of sides of the regular polygon prism structure is the same as that of the regular polygon holes.

Further, an outer diameter of the connecting portion is the same as an outer diameter of the first measuring portion.

Further, a first cross mark line is arranged at the top of the first measuring part.

Further, the concentric cover of panel beating includes:

the second measuring part comprises the measuring hole and a connecting hole which are communicated with each other and coaxially arranged, and the central axis of the second measuring part is superposed with the central axis of the measuring hole;

the clamping part is coaxially arranged on the bottom surface of the second measuring part and is positioned on the radial outer side of the connecting hole;

wherein, the joint portion joint is in the panel beating is downthehole.

Further, the measuring hole is larger than the sheet metal hole.

Further, the clamping portion comprises a plurality of clamping blocks, and the clamping blocks are arranged on the bottom surface of the second measuring portion in an annular mode by taking the central axis of the measuring hole as a center.

Further, a second cross mark line is arranged at the top of the second measuring part.

The embodiment of the utility model provides a nut position degree detects instrument, should detect the instrument and include the concentric pole of nut and the concentric cover of panel beating that has the measuring aperture. When detecting, the one end and the nut threaded connection of nut concentric rod, the concentric cover of panel beating and panel beating jogged joint, stretch out from the measuring hole of the concentric cover of panel beating hole and panel beating the other end of nut concentric rod. This detection tool easy operation can shift the relative position relation between nut and the panel beating hole to the outside, then uses the clearance chi can high efficiency accomplish the measurement, has realized the measuring quantization, is convenient for adjust the assembly position.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a nut position degree detection tool according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a nut concentric rod according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a sheet metal concentric sleeve according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the sheet metal concentric sleeve at another angle according to the embodiment of the present invention;

fig. 5 is a cross-sectional view of the nut position detecting tool according to the embodiment of the present invention in operation;

fig. 6 is a schematic structural diagram of the gap ruler according to the embodiment of the present invention for measuring two circles;

fig. 7 is a schematic structural diagram of the gap ruler according to the embodiment of the present invention for measuring two polygons.

Description of the drawings reference numbers:

1-nut concentric rod; 11-a connecting portion; 12-a first measuring section; 13-first cross marking line; 2-metal plate concentric sleeves; 21-measuring holes; 22-a second measuring section; 23-a clamping part; 231-a fixture block; 24-connecting hole; 25-second cross mark line; a-a nut; b-sheet metal holes; c-sheet metal; d-a clearance gauge.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the present invention.

Furthermore, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, being fixedly connected, releasably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Fig. 1 to 4 are schematic structural views of the nut position degree detection tool of the present embodiment. Nut position degree detection instrument can shift the relative position relation between nut A and the panel beating hole B to the outside can make things convenient for the measuring region, then uses clearance chi D can the rapid survey deviation volume, can quantify the position between adjustment panel beating hole B and the nut A from this to make the base plate of coupling nut A and the position adjustment that has panel beating C between the panel beating hole B weld after the exact position.

Specifically, the nut position degree detection tool comprises a nut concentric rod 1 and a sheet metal concentric sleeve 2, as shown in fig. 1. Wherein the sheet metal concentric sleeve 2 has a measuring hole 21. When the nut position degree detection tool detects the nut position degree, firstly, an operator places a sheet metal with a sheet metal hole B above a corresponding position on a substrate connected with a nut A in a visual inspection mode; and then, one end of the nut concentric rod 1 penetrates through a metal plate hole B and a mounting hole in the substrate and then is in threaded connection with the nut A, and the metal plate concentric sleeve 2 is sleeved on the outer side of the nut concentric rod 1 and is connected with the metal plate hole B. At this moment, the other end of the nut concentric rod 1 extends out of the sheet metal hole B and the measuring hole 21 of the sheet metal concentric sleeve 2, and the position degree relation between the nut A and the sheet metal hole B can be transferred to the position degree relation between the nut concentric rod 1 and the measuring hole 21. Because the concentric pole 1 of nut and the concentric cover 2 of panel beating all can extend to the panel beating to the outside, can conveniently use clearance chi D to measure the deviation between the two to the realization is to the measurement of the deviation between nut A and the panel beating hole B, has solved unable quantification, measuring tool and the panel beating of current measurement mode and has interfered, measure the poor scheduling problem of convenience.

The nut concentric rod 1 includes a connecting portion 11 and a first measuring portion 12, and the first measuring portion 12 is disposed above the connecting portion 11 and coaxially disposed, as shown in fig. 2. The connecting portion 11 is provided with an external thread and is used for being in threaded connection with the nut A, so that the nut concentric rod 1 can be conveniently fixed during detection and detached after detection. The first measuring portion 12 is used for extending out of the outer side of the metal plate C from the metal plate hole B, and is convenient for auxiliary detection of the position degree of the nut.

Preferably, the nut concentric rod 1 is integrally formed. The outer diameter of the connecting portion 11 is the same as the outer diameter of the first measuring portion 12 so that the first measuring portion 12 can protrude to the outside from the mounting hole of the substrate.

The metal plate concentric sleeve 2 comprises a second measuring part 22 and a clamping part 23, wherein the clamping part 23 is coaxially arranged on the bottom surface of the second measuring part 22, as shown in fig. 3 and 4. Wherein, joint portion 23 is used for pegging graft with panel beating hole B on the panel beating C to with the concentric cover 2 relatively fixed of panel beating on the panel beating C. The second measuring portion 22 comprises a measuring hole 21 and a connecting hole 24 which are communicated with each other and coaxially arranged, the diameter of the measuring hole 21 is larger than that of the connecting hole 24, the diameter of the connecting hole 24 is smaller than that of the sheet metal hole B, and the central axis of the second measuring portion 22 coincides with that of the measuring hole 21, as shown in fig. 3. The clamping portion 23 is located on the radial outer side of the connecting hole 24, and the central axis of the clamping portion 23 coincides with the central axis of the connecting hole 24. The diameter of the connection hole 24 is larger than the outer diameter of the first measurement part 12. When detecting, the concentric cover 2 of panel beating is pegged graft to panel beating hole B of panel beating C through joint portion 23 in, and the bottom surface and the laminating of panel beating C of second measuring part 22, and stretch out in panel beating hole B, connecting hole 24 and the measuring hole 21 are followed in proper order to the first measuring part 12 of nut concentric rod 1.

In the inspection, after the connection portion 11 is connected to the nut a, the center axis of the connection portion 11 coincides with the center axis of the nut a, and the first measurement portion 12 and the connection portion 11 are coaxially disposed, so that the center axis of the nut a can be shifted to the center axis of the first measurement portion 12, as shown in fig. 5. After the clamping portion 23 is connected with the sheet metal hole B, the central axis of the sheet metal hole B can be transferred to the central axis of the measuring hole 21 through the clamping portion 23 and the connecting hole 24. Thereby, the positional degree between the nut a and the sheet metal hole B can be converted into the positional degree between the first measuring portion 12 and the measuring hole 21, and the deviation amount between the nut a and the sheet metal hole B can be determined by measuring the deviation amount between the first measuring portion 12 and the measuring hole 21 by the clearance gauge D, as shown in fig. 5.

The operator can measure again after the position of deviation adjustment panel beating C according to the deviation that detects, when clearance chi D measures the non-deviation between first measuring part 12 and measuring hole 21 or satisfies the deviation requirement, non-deviation between nut A and the panel beating hole B or satisfy the deviation requirement, can demolish nut concentric rod 1 and panel beating concentric sleeve 2 from nut A and panel beating hole B this moment to make panel beating C and the base plate that is connected with nut A can carry out the follow-up process operation.

In the present embodiment, the diameter of the measuring hole 21 is larger than that of the connecting hole 24, both of which form a stepped hole. The step-shaped hole is provided in the second measuring portion 22, so that the distance between the measuring hole 21 and the first measuring portion 12 can be increased, and the measurement of the clearance gauge D can be facilitated.

In other embodiments, only the connection hole 24 may be disposed in the second measurement portion 22, and the connection hole 24 may penetrate through the second measurement portion 22. The clearance gauge D can determine the amount of deviation between the nut a and the sheet metal hole B by measuring the amount of deviation between the first measuring portion 12 and the connecting hole 24.

In this embodiment, the outer diameter formed by the clamping portion 23 is adapted to the inner diameter of the metal plate hole B, so that the clamping portion 23 can be clamped in the metal plate hole B to achieve connection. Further, the external diameter of second measuring part 22 is greater than the internal diameter of panel beating hole B to make the bottom surface of second measuring part 22 can laminate on the panel beating C of panel beating hole B week side, improve the stability that the concentric cover 2 of panel beating is connected with panel beating C, increased the accuracy that the nut position degree was measured.

In this embodiment, the fastening portion 23 includes a plurality of fastening blocks 231, and the fastening blocks 231 are arranged on the bottom surface of the second measuring portion 22 around the central axis of the measuring hole 21 (i.e. the central axis of the connecting block 24), as shown in fig. 4. Wherein, the excircle diameter that a plurality of fixture blocks 231 surrounded the formation and the diameter adaptation of panel beating hole B for a plurality of fixture blocks 231 can the joint in panel beating hole B. Preferably, a plurality of blocks 231 may be uniformly arranged at equal angles on the bottom surface of the second measuring portion 22, which may improve the stability of connection. The plurality of latches 231 includes two or more. The plurality of stoppers 231 may be fixed to the bottom surface of the second measuring portion 22 by means of adhesion, welding, integral molding, and the like.

In other embodiments, the clamping portion 23 may be provided in a ring structure. The outer diameter of the annular structure is the same as the inner diameter of the sheet metal hole B in an adaptive mode, so that the clamping portion 23 can be clamped into the sheet metal hole B. The inner diameter of the ring-shaped structure is equal to or greater than the inner diameter of the connection hole 24 so that the first measurement portion 12 can pass through.

Further, since the clearance gauge D has a certain thickness, there is a deviation in accuracy when measuring the relative displacement amount of the two circles formed by the measurement hole 21 and the first measurement portion 12, as shown in fig. 6. To eliminate this deviation, the first measurement section 12 is provided as a regular polygon prism structure, and the measurement holes 21 are provided as regular polygon holes, the regular polygon prism structure being the same as the number of sides of the regular polygon holes. The above arrangement can eliminate the deviation of the accuracy due to the thickness of the clearance gauge D at the time of measurement, as shown in fig. 7. The number of the regular polygonal prisms and the number of the regular polygonal holes may be set according to the thickness of the clearance gauge D. Preferably, the regular polygonal prism structure and the regular polygonal hole have 12 sides. Regular prisms are prisms in which the side edges are all perpendicular to the base surface, and the base surface is a regular polygon.

Further, the top of the first measuring portion 12 is provided with a first cross mark line 13, and the top of the second measuring portion 22 is provided with a second cross mark line 25, as shown in fig. 2 and 4. The center of the cross of the first cross mark line 13 coincides with the center of the first measuring unit 12, and the center of the cross of the second cross mark line 25 coincides with the center of the second measuring unit 22. Meanwhile, the position of the regular polygon circle formed by the first cross mark line 13 in the first measuring portion 12 is the same as the position of the regular polygon circle formed by the second cross mark line 25 in the measuring hole 21. The arrangement of the first cross mark line 13 and the second cross mark line 25 can assist the measuring hole 21 to be aligned with the first measuring part 12, so that the measured edges of the first cross mark line and the second cross mark line are relatively parallel, the gap ruler D is convenient to measure, and the measuring precision is improved. When the nut A and the sheet metal hole B deviate to be measured, the concentric sleeve 2 of the sheet metal is rotated, so that one side of the measured position is aligned to be measured, and then the measurement is started.

The working process of the nut position degree detection tool of the embodiment is as follows:

(1) Screwing the nut concentric rod 1 into the nut A;

(2) Sleeving the metal plate concentric sleeve 2 in the metal plate hole B;

(3) Rotating the metal plate concentric sleeve 2 to enable one side of the measured position measuring hole 21 to be aligned and parallel to one side of the first measuring part 12;

(4) The area with the largest clearance is observed visually, and a clearance value is measured by using a clearance ruler D;

(5) And adjusting the sheet metal C according to the gap value, and then measuring again until the composite gap requirement is met.

The detection tool of the embodiment comprises a nut concentric rod and a sheet metal concentric sleeve with a measuring hole. When the detection is carried out, one end of the nut concentric rod is in threaded connection with the nut, the metal plate concentric sleeve is connected with the metal plate hole, and the other end of the nut concentric rod extends out of the metal plate hole and the measuring hole of the metal plate concentric sleeve. This detection tool easy operation can shift the relative position relation between nut and the panel beating hole to the outside, then uses the clearance chi can high efficiency accomplish to measure, has realized the measuring quantization, is convenient for adjust the assembly position, solves unable quantization, measuring tool and panel beating interference, the measurement convenience subalternation problem of current measurement mode.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a nut position degree detects instrument, its characterized in that, it includes nut concentric rod (1) and the concentric cover of panel beating (2) that have measuring hole (21) to detect the instrument, when detecting, the one end and the nut (A) threaded connection of nut concentric rod (1), the concentric cover of panel beating (2) are connected with panel beating hole (B), the other end of nut concentric rod (1) is followed panel beating hole (B) and the concentric cover of panel beating (2) stretch out in measuring hole (21).

2. Inspection tool according to claim 1, characterized in that the nut concentric rod (1) comprises a connecting portion (11) and a first measuring portion (12) arranged coaxially in the height direction, the connecting portion (11) having an external thread for connection with the nut (a).

3. The inspection tool according to claim 2, wherein the first measurement portion (12) is a regular polygonal prism structure, and the measurement holes (21) are regular polygonal holes having the same number of sides as the regular polygonal holes.

4. The detection tool according to claim 2 or 3, characterized in that the outer diameter of the connection portion (11) and the outer diameter of the first measurement portion (12) are the same.

5. The testing tool according to claim 3, characterized in that the top of the first measuring part (12) is provided with a first cross marking line (13).

6. The inspection tool according to claim 1, characterized in that the sheet metal concentric sleeve (2) comprises:

the second measuring part (22) comprises a measuring hole (21) and a connecting hole (24) which are communicated with each other and coaxially arranged, and the central axis of the second measuring part (22) is superposed with the central axis of the measuring hole (21);

the clamping portion (23) is coaxially arranged on the bottom surface of the second measuring portion (22), and the clamping portion (23) is located on the radial outer side of the connecting hole (24);

wherein, the clamping part (23) is clamped in the sheet metal hole (B).

7. Inspection tool according to claim 6, characterized in that the measuring hole (21) is larger than the sheet metal hole (B).

8. The detecting tool according to claim 6, wherein the catching portion (23) includes a plurality of catching blocks (231), and the plurality of catching blocks (231) are annularly provided on the bottom surface of the second measuring portion (22) centering on the central axis of the measuring hole (21).

9. The testing tool according to claim 6, characterized in that the top of the second measuring portion (22) is provided with a second cross-mark line (25).