CN202648567U

CN202648567U - Locating pin

Info

Publication number: CN202648567U
Application number: CN 201220229505
Authority: CN
Inventors: 马祥
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2013-01-02
Anticipated expiration: 2022-05-22

Abstract

The utility model provides a locating pin for solving the technical problem that the existing locating pin for a detection device highly deviates from the accuracy for location and detection. The locating pin comprises a pin sleeve, wherein the pin sleeve is provided with a concave part; a pin body and a spring are arranged in the concave part; two ends of the spring are respectively propped to the bottom of the pin body and the concave part; and the pin body can retract into the concave part so as to make the top end of the pin body be lower than or align with the top surface of the pin sleeve when the spring is in a state of compression. The operating principles of the locating pin are that the pin body can slide up and down on the concave part of the pin sleeve; during the process for mounting a component, the pin body is pressed by the component so as to press the spring downward along the axial direction until a locating hole of the component aligns with the pin body; and under the function of the spring, the pin body is automatically ejected upward and stretches into the locating hole of the component, thus realizing automatic location. The locating pin has the advantages of being simple in structure, being low in cost, being accurate and convenient to locate, being able to improve the locating accuracy of the detection device and the work efficiency of a detector, and having high practicability.

Description

A kind of register pin

Technical field

The utility model belongs to field of measuring technique, is specifically related to a kind of register pin for the cubing location.

Background technology

Cubing is the abbreviation of the online Check and Inspection anchor clamps such as stamping parts and weldment, is by technical requirement and the special testing tool of making of particular requirement, is the basis of Measurement accuracy with correct, the rational location of workpiece.

The mode of positioning workpieces mainly is divided at present: plug-in type, implanted register pin and plug-in type test pin, all there is certain defective in these several locator meamss: 1, the plug-in type register pin is easily lost, troublesome poeration, the detection position is easy to wear, geocoded activity produces cumulative errors easily, locates the defectives such as insufficient; 2, the implanted register pin is non-adjustable, and position point is changed trouble after damaging or establish and becoming, and needs after the replacing again go up the three-dimensional debugging, increases maintenance cost and man-hour; 3, the plug-in type test pin has identical defective with the plug-in type register pin, but is subjected to the impact of self precision and guide matching relationship, produces easily larger error.

Summary of the invention

The purpose of this utility model is to propose a kind of register pin, with the larger technical matters of accuracy error that solves existing cubing register pin location and detect.

Register pin of the present utility model comprises guide, described guide is provided with recess, shank and spring are installed in the described recess, the two ends of described spring offset with bottom, the recess of shank respectively, but described shank in the retraction recess so that top of shank when spring is in compressive state is lower than guide end face or concordant with the guide end face.

The principle of work of above-mentioned register pin is as follows: shank can slide up and down in the recess of guide, in the loading procedure of product, shank is subjected to the compressing of product, downward Compress Spring vertically, after the pilot hole of product and shank aligned, under the effect of spring, shank popped up automatically, and stretch in the pilot hole of product, thereby realize automatically location.

Further, deviate from for preventing shank, the end face of described guide is installed with the anticreep plate, and described anticreep plate is provided with through hole in the position of corresponding recess, the internal diameter of the diameter of the internal diameter of the diameter on described shank top＜described through hole＜described shank bottom＜described recess.When spring upwards leaned shank, the bottom of shank can interfere with the through hole of anticreep plate, avoids shank to deviate from recess.

Further, for avoiding in when location and product interference, described anticreep plate is installed on the end face of guide by flat head screw, like this flat head screw fastening after, sink in the end face of guide, can not interfere with product.

Further, described shank top is round table-like, like this when the location, shank top is stretched in the pilot hole of product always, and because the radius of round platform from top to bottom increases gradually, therefore can make the top of shank and the pilot hole close contact of product, thereby guarantee the accuracy of location.

Further, the bottom of described shank is provided with the reference column that stretches in the spring, can prevent that like this shank from rocking.

Locating pin structure of the present utility model is simple, cost is low, accurate positioning is convenient, can improve the bearing accuracy of cubing and the work efficiency of survey crew, has good practicality.

Description of drawings

Fig. 1 is the structure principle chart of register pin of the present utility model.

Fig. 2 is the positioning principle figure of register pin of the present utility model.

Embodiment

The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail.

Embodiment 1:

As shown in Figure 1, the register pin of present embodiment comprises guide 1, guide 1 is provided with recess 2, shank 3 and spring 4 are installed in the recess 2, the two ends of spring 4 offset with bottom, the recess 2 of shank 3 respectively, but shank 3 in the retraction recess 2 so that top of shank 3 when spring 4 is in compressive state is lower than guide 1 end face or concordant with guide 1 end face.

Further, deviate from for preventing shank, the end face of guide 2 is installed with anticreep plate 6 by flat head screw 5, anticreep plate 6 is provided with through hole 7 in the position of corresponding recess 2, the top of shank 3 is round table-like, the bottom is column, the internal diameter of the diameter＜recess 2 of internal diameter＜shank 3 bottoms of the diameter＜through hole 7 on shank 3 tops.When spring 4 upwards leaned shank 3, the bottom of shank 3 can interfere with the through hole 7 of anticreep plate, avoids shank 3 to deviate from recess 2.

Further, the bottom of shank 3 is provided with the reference column 9 that stretches in the spring 4, can prevent that like this shank 3 from rocking.

As shown in Figure 2, the principle of work of above-mentioned register pin is as follows: shank 3 can slide up and down in the recess 2 of guide, in the loading procedure of product 8, shank 3 is subjected to the compressing of product 8, and downward Compress Spring 4 vertically is after the pilot hole of product 8 and shank 3 align, under the effect of spring 4, shank 3 pops up automatically, and stretches in the pilot hole of product 8, thereby realizes automatically location.

Claims

1. register pin, it is characterized in that comprising guide, described guide is provided with recess, shank and spring are installed in the described recess, the two ends of described spring offset with bottom, the recess of shank respectively, but described shank in the retraction recess so that top of shank when spring is in compressive state is lower than guide end face or concordant with the guide end face.

2. register pin according to claim 1, the end face that it is characterized in that described guide is installed with the anticreep plate, described anticreep plate is provided with through hole in the position of corresponding recess, the internal diameter of the diameter of the internal diameter of the diameter on described shank top＜described through hole＜described shank bottom＜described recess.

3. register pin according to claim 2 is characterized in that described anticreep plate is installed on the end face of guide by flat head screw.

4. according to claim 1 and 2 or 3 described register pins, it is characterized in that described shank top is round table-like.

5. the bottom that according to claim 1 and 2 or 3 described register pins, it is characterized in that described shank is provided with the reference column that stretches in the spring.