阅读说明：本技术 一种检具用定位销定位卡扣机构 (Positioning pin positioning and buckling mechanism for checking fixture ) 是由 阳继虎 张韫韬 于 2019-10-12 设计创作，主要内容包括：本发明公开了一种检具用定位销定位卡扣机构,包括调节块,具有一销套孔；销套,过盈配合的装配于所述销套孔；定位销,包括定位销本体,其一端具有定位部,另一端贯穿所述销套后连接有旋动部,所述定位部的最大尺寸不小于所述定位销本体的直径；限位机构,所述限位机构限制所述定位销的轴向位移,且限制所述定位销仅在设定角度范围内转动,可以通过旋转定位销90度,实现膨胀取件的效果,限位块和调节块连接为一体,方便调试,结构简单,成本较低。(The invention discloses a positioning and buckling mechanism for a positioning pin for a checking fixture, which comprises an adjusting block, a clamping block and a clamping block, wherein the adjusting block is provided with a pin sleeve hole; the pin sleeve is assembled in the pin sleeve hole in an interference fit manner; the positioning pin comprises a positioning pin body, one end of the positioning pin body is provided with a positioning part, the other end of the positioning pin body penetrates through the pin sleeve and is connected with a rotating part, and the maximum size of the positioning part is not smaller than the diameter of the positioning pin body; stop gear, stop gear restriction the axial displacement of locating pin, and restriction the locating pin only is at setting for the angular range internal rotation, can realize the inflation through rotatory locating pin 90 degrees and get the effect of piece, and stopper and regulating block are connected as an organic wholely, convenient debugging, simple structure, and the cost is lower.)

1. The utility model provides an examine utensil and fix a position buckle mechanism with locating pin which characterized in that: comprises that

The adjusting block is provided with a pin sleeve hole;

the pin sleeve is assembled in the pin sleeve hole in an interference fit manner;

the positioning pin comprises a positioning pin body, one end of the positioning pin body is provided with a positioning part, the other end of the positioning pin body penetrates through the pin sleeve and is connected with a rotating part, and the maximum size of the positioning part is not smaller than the diameter of the positioning pin body;

and the limiting mechanism limits the axial displacement of the positioning pin and limits the positioning pin to only rotate within a set angle range.

2. The locating pin positioning and buckling mechanism for the checking fixture according to claim 1, characterized in that: the limiting mechanism comprises a limiting pin, one end of the limiting pin is embedded into the positioning pin along the radial direction of the positioning pin, and the pin sleeve is located between the limiting pin and the positioning portion.

3. The locating pin positioning and buckling mechanism for the checking fixture according to claim 1, characterized in that: the limiting block is fixedly arranged on the adjusting block and encloses a limiting pin accommodating cavity between the adjusting block and the bushing.

4. The locating pin positioning and buckling mechanism for the checking fixture according to claim 3, wherein: the limiting pin accommodating cavity is fan-shaped.

5. The locating pin positioning and buckling mechanism for the checking fixture according to claim 4, wherein: a fan-shaped groove is formed in the limiting block.

6. The locating pin positioning and buckling mechanism for the checking fixture according to claim 4, wherein: the bottom of the adjusting block is provided with a fan-shaped groove.

7. The locating pin positioning and buckling mechanism for the checking fixture according to claim 3, wherein: a counter bore is formed in the bottom surface of the adjusting block, and the limiting block is received in the counter bore.

8. The locating pin positioning and buckling mechanism for the checking fixture according to claim 7, wherein: the end face of the limiting block is not higher than the bottom face of the adjusting block.

9. The locating pin positioning and buckling mechanism for the checking fixture according to claim 1, characterized in that: the positioning part comprises a columnar positioning body, two planes are symmetrically processed on the positioning body, the planes extend from the bottommost end of the positioning body to the top end by a set distance, and the planes and the peripheral surface of the top end part of the positioning part have height difference to form a boss.

10. The locating pin positioning and buckling mechanism for the checking fixture according to claim 9, wherein: the top end of the positioning part is provided with a conical section.

Technical Field

The invention belongs to the technical field of detection product positioning devices, and particularly relates to a positioning pin positioning buckle mechanism for a detection tool.

Background

When the products with buckles such as the top cover decorative strips are detected, the positioning and fixing of the products are often required to be realized by positioning and fixing the buckles, so that the products can be detected on the edge. The existing positioning mechanism has no limiting mechanism or can not take parts, and the mechanism has more parts and is relatively complex, so that the use and the maintenance are inconvenient; in addition, current positioning mechanism can not get the product through mechanism itself, leads to the product to demolish inconveniently after detecting.

Disclosure of Invention

The invention aims to provide a positioning pin positioning and buckling mechanism for a detection tool, which aims to solve the problems in the background art.

In order to solve the technical problem, the invention aims to realize that:

a positioning pin positioning and buckling mechanism for a checking fixture comprises

The adjusting block is provided with a pin sleeve hole;

the pin sleeve is assembled in the pin sleeve hole in an interference fit manner;

the positioning pin comprises a positioning pin body, one end of the positioning pin body is provided with a positioning part, the other end of the positioning pin body penetrates through the pin sleeve and is connected with a rotating part, and the maximum size of the positioning part is not smaller than the diameter of the positioning pin body;

and the limiting mechanism limits the axial displacement of the positioning pin and limits the positioning pin to only rotate within a set angle range.

On the basis of the above scheme and as a preferable scheme of the scheme: the limiting mechanism comprises a limiting pin, one end of the limiting pin is embedded into the positioning pin along the radial direction of the positioning pin, and the pin sleeve is located between the limiting pin and the positioning portion.

On the basis of the above scheme and as a preferable scheme of the scheme: the limiting block is fixedly arranged on the adjusting block and encloses a limiting pin accommodating cavity between the adjusting block and the bushing.

On the basis of the above scheme and as a preferable scheme of the scheme: the limiting pin accommodating cavity is fan-shaped.

On the basis of the above scheme and as a preferable scheme of the scheme: a fan-shaped groove is formed in the limiting block.

On the basis of the above scheme and as a preferable scheme of the scheme: a counter bore is formed in the bottom surface of the adjusting block, and the limiting block is received in the counter bore.

On the basis of the above scheme and as a preferable scheme of the scheme: the end face of the limiting block is not higher than the bottom face of the adjusting block.

On the basis of the above scheme and as a preferable scheme of the scheme: the positioning part comprises a columnar positioning body, two planes are symmetrically processed on the positioning body, the planes extend from the bottommost end of the positioning body to the top end by a set distance, and the planes and the peripheral surface of the top end part of the positioning part have height difference to form a boss.

On the basis of the above scheme and as a preferable scheme of the scheme: the top end of the positioning part is provided with a conical section.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

1. the adjusting block is adopted, so that the processing difficulty of parts is reduced, and scrapping caused by hole site reasons can not occur.

2. The pin bush and the positioning pin are matched smoothly, so that the guide device has a good guide effect, the working state is stable, and the precision requirement of the checking fixture is met.

3. The effect of the expansion piece taking can be realized by rotating the positioning pin by 90 degrees.

4. The limiting block and the adjusting block are connected into a whole, so that the debugging is convenient, the structure is simple, and the cost is lower.

Drawings

FIG. 1 is an elevational view of the overall construction of the present invention;

FIG. 2 is a left side view of the overall construction of the present invention;

FIG. 3 is a half cross-sectional view of the overall mechanism after the locating pin has been rotated 90;

FIG. 4 is a schematic view of a stopper structure;

FIG. 5 is a sectional view A-A;

FIG. 6 is a cross-sectional view A-A of the locating pin rotated 90;

fig. 7 is a left side view of the overall structure after the locating pin has been rotated 90.

The positioning pin comprises a positioning pin 1, a threaded section 11, a positioning part 12, a plane 121, a boss 122, a positioning body 123, a positioning pin body 13, a pin sleeve 2, an adjusting block 3, a limiting pin 4, a pin sleeve hole 31, a limiting block 5, a groove 51, a rotating part 6, a limiting pin accommodating cavity 7, a buckle 8, a clamping jaw 81 and a highest point a of the peripheral surface of the positioning body.

Detailed Description

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, 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 or implying any number of technical features indicated.

A positioning pin positioning and buckling mechanism for a checking fixture comprises

The adjusting block 3 is provided with a pin sleeve hole 31;

the pin sleeve 2 is assembled in the pin sleeve hole 31 in an interference fit mode; the adjusting block is adopted, the processing difficulty of parts is reduced, scrapping caused by hole site reasons cannot occur, and the pin sleeve 2 and the positioning pin 1 are adopted to be matched simultaneously, so that the two parts are matched smoothly, a good guiding effect is achieved, the working state is stable, and the precision is greatly improved. It should be noted that, in the course of working, need to cooperate the processing with regulating block 3 and pin bush 2 for the two clearance fit has higher machining precision simultaneously, needs to guarantee the axiality of the interior outer lane of pin bush 2, and preferred axiality precision is 0.01 mm.

The locating pin 1 comprises a locating pin body 13, wherein one end of the locating pin body 13 is provided with a locating part 12, the other end of the locating pin body penetrates through the pin sleeve 2 and then is connected with a rotating part 6, and the maximum size of the locating part 12 is not smaller than the diameter of the locating pin body 13; in this embodiment, the other end of the positioning pin is preferably a threaded section 11, and the threaded section 11 is in threaded connection with the screwing part 6.

Specifically, the positioning portion 12 includes a columnar positioning body 123, two planes 121 are symmetrically machined on the positioning body 123, the planes 121 extend from the bottom end to the top end of the positioning body 123 for a set distance, a height difference is formed between the peripheral surfaces of the planes 121 and the top end portion of the positioning portion 12 to form a boss 122, a buckle of a detected product is clamped into the two planes 121, the boss 122 can prevent the buckle from coming off from the direction of the boss 122 due to the fact that the height of the boss 122 is higher than the height of the planes 121, and then the buckle 122 can be pressed on the adjusting block 3 by tightening the positioning pin 1 so as to fix the buckle.

Preferably, the top of location portion 12 has the toper section, and the acute angle fish tail operating personnel of the location portion of being convenient for on the one hand, another make things convenient for the toper section to play the effect of guide, can be so through with the buckle by the toper section impress the location body on to the chucking is on two planes 121, the quick installation of the buckle of being convenient for. It should be noted that the distance between the two planes 121 is the positioning size of the clip.

And the limiting mechanism limits the axial displacement of the positioning pin 1 and limits the positioning pin 1 to only rotate within a set angle range.

Specifically, in this embodiment, it is preferable that the limiting mechanism includes a limiting pin 4, one end of the limiting pin 4 is embedded in the positioning pin 1 along the radial direction of the positioning pin 1, and the pin bush 2 is located between the limiting pin 4 and the positioning portion 12.

The limiting block 5 is fixedly arranged at the bottom of the adjusting block 3, and a limiting pin accommodating cavity 7 is enclosed between the adjusting block 3 and the bushing 2, so that the limiting pin 4 can flexibly swing around the axis of the positioning pin in the limiting pin accommodating cavity 7, the rotation angle of the positioning pin 1 is 90 degrees, the limiting pin accommodating cavity 7 allows the swinging angle of the limiting pin to be 90 degrees, and the limiting angle of the limiting pin is limited by limiting the swinging angle of the limiting pin.

In order to further optimize the structure in spacer pin holding chamber, be convenient for produce manufacturing, the preferred stopper 5 of this embodiment is circular, a sectorial recess 51 has been seted up on the stopper 5, the bottom surface of regulating block 3 is the plane, thereby detain recess 51 towards the bottom surface of regulating block mutually, use the screw with stopper 5 fixed connection in the bottom surface of regulating block 3, thereby recess 31 encloses synthetic sectorial spacer pin holding chamber 7 with the bottom surface of regulating block, sectorial both sides contained angle is 90 degrees, rotation at spacer pin 4 will be restricted by sectorial both sides like this, thereby only can be spacer pin 4 carries out 90 swings around the axis of locating pin.

In order to further improve the integrity of the mechanism and the precision of the mechanism, in the embodiment, preferably, a counter bore 32 is formed in the bottom surface of the adjusting block 3, and the limiting block 5 is received in the counter bore 32. It should be noted that after the limiting block 5 is installed in the counter bore 32 and fixed by using a screw, the end surface of the limiting block 5 is not higher than the bottom surface of the adjusting block 3. The utility model provides a stopper and spacer pin and regulating block are integrative, only need adjust the regulating block now, have made things convenient for the debugging to it sets up alone to have solved current location structure stopper and spacer pin, debugs inconvenient problem.

The following describes the specific operation principle of the present embodiment in detail with reference to fig. 5 to 6:

preparing and detecting a detected product:

the first step is as follows: the buckle 8 of the detected product is clamped into the positioning body 123, it should be noted that in the clamping process, the claw 81 of the buckle 8 is clamped towards the direction of the plane 121, so that the clamping jaw 81 is clamped and pressed on the plane 121, and then the buckle can be limited to move upwards along the axis of the positioning body 123 under the action of the boss.

The second step is that: a driving force is applied to the positioning pin, so that the boss 122 presses the buckle 8 downwards and tightly presses the upper end face of the adjusting block 3, the buckle is fixed, and the detected product is fixedly positioned.

After the detection is finished, taking down the detected product:

the first step is as follows: the rotating part 6 is driven to drive the positioning pin 1 to rotate 90 degrees, at the moment, because the buckle of the detected product can not rotate together, after the positioning pin 1 rotates 90 degrees, the plane 121 can rotate 90 degrees along the axis of the positioning body 123, the state of the figure 5 is changed to the state of the figure 6, at the moment, the highest point a of the peripheral surface of the positioning body 123 rotates to the position of the original plane 121, namely, the highest point a is contacted with the claw 81, because the size of the highest point a away from the center of the positioning body is larger than the distance of the plane away from the center of the positioning body, the claw is forced to generate plastic deformation so as to be propped open along the radial direction of the positioning body, because the distance between the two highest points a is just equal to the diameter of the positioning body, the two claws 8 of the buckle 8 are propped open to be not smaller than the diameter of, the catch now assumes the condition of being disengaged from the boss 122.

The second step is that: when a certain driving force is continuously applied to pull down the positioning pin 1 or lift up the detected product, the buckle can be separated from the limit of the boss, so that the boss slides out along the axial direction of the positioning part, and the buckle is easily detached.

Thereby this application can automatic inflation buckle through rotating locating pin 1 90 and can make things convenient for quick getting, has solved the problem that current mechanism got a difficulty.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.