CN202757563U

CN202757563U - Pin testing fixture

Info

Publication number: CN202757563U
Application number: CN 201220432278
Authority: CN
Inventors: 葛益军
Original assignee: SUZHOU YIQUN PRECISION CO Ltd
Current assignee: SUZHOU YIQUN PRECISION CO Ltd
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-02-27
Anticipated expiration: 2022-08-29

Abstract

Disclosed is a pin testing fixture, comprising a testing fixture body, wherein the testing fixture body is provided with a middle through hole; the middle through hole is composed of an inlet hole and an outlet hole sharing one center line; the hole diameter of the inlet hole is consistent with the allowed upper limit of the diameter of the to-be-detected pin, with the hole diameter of the inlet hole being greater than that of the outlet hole; and the difference between the hole diameters of the inlet hole and the outlet hole is consistent with the allowed error of the to-be-detected pin. According to the utility model, the testing fixture body is provided with a middle through hole divided into two parts having different hole diameters, with the difference between the two hole diameters being consistent with the allowed error of the to-be-detected pin. The diameter of the to-be-detected pin can be tested by inserting the pin into the greater hole. The pin testing fixture features high detecting efficiency and great detecting effect, and realizes the objective of making a pin testing fixture with simple structure, reasonable design, and excellent application effect.

Description

A kind of bearing pin cubing

Technical field

The utility model relates to bearing pin testing tool field, is specifically related to a kind of bearing pin cubing.

Background technology

Bearing pin is used comparatively extensive in existing mechanical connecting structure, and is special standby being used for accurate apparatus, more and more higher to the radical length accuracy requirement of bearing pin, simultaneously the nonstraightness of whole bearing pin also had higher requirement, and the error range that allows is more and more less.The method of traditional measurement bearing pin precision is the survey instruments such as employing slide calliper rule, and work efficiency is extremely low.

The utility model content

For solving the problems of the technologies described above, we have proposed a kind of simple in structure, reasonable in design and bearing pin cubing that effect is good, by offer the middle through hole that is divided into two sector holes footpath at described cubing body, and the poor permissible error with bearing pin to be measured of the diameter between two apertures is consistent, bearing pin to be measured is assigned toward macropore its diameter is detected.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of bearing pin cubing, comprise the cubing body, offer middle through hole on the described cubing body, described middle through hole is comprised of with portalling the inlet hole of concentricity line, described inlet hole aperture allows the upper limit consistent with the diameter of bearing pin to be measured, and described inlet hole aperture is greater than the described aperture of portalling, and described inlet hole aperture is consistent with the permissible error of described portal aperture difference and bearing pin to be measured.

Preferably, described cubing also comprises a bearing, and described cubing body is located on the described bearing.

Pass through technique scheme, the utility model is by offering the middle through hole that is divided into two sector holes footpath at described cubing body, and the poor permissible error with bearing pin to be measured of the diameter between two apertures is consistent, bearing pin to be measured is assigned its diameter is detected toward macropore, detection efficiency is high, detect effective, thereby reached simple in structure, reasonable in design and the good purpose of effect.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the cross-sectional schematic of the disclosed a kind of bearing pin cubing of the utility model embodiment;

Fig. 2 is the cross-sectional schematic of the disclosed a kind of bearing pin detecting pin of detecting tool shaft diameter of the utility model embodiment when qualified;

Fig. 3 is the cross-sectional schematic of the disclosed a kind of bearing pin detecting pin of detecting tool shaft diameter of the utility model embodiment during less than certified products;

Fig. 4 is the cross-sectional schematic of the disclosed a kind of bearing pin detecting pin of detecting tool shaft diameter of the utility model embodiment during greater than certified products.

Numeral and the represented corresponding component title of letter among the figure:

1. cubing body 2. inlet holes 3. 4. bearing pins to be measured that portal

5. bearing

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.

The utility model provides a kind of bearing pin cubing, its principle of work is the middle through hole that is divided into two sector holes footpath by offering at described cubing body, and the poor permissible error with bearing pin to be measured of the diameter between two apertures is consistent, bearing pin to be measured is assigned toward macropore its diameter is detected.

Below in conjunction with embodiment and embodiment the utility model is described in further detail.

Embodiment.

As shown in Figure 1, a kind of bearing pin cubing, comprise cubing body 1, offer middle through hole on the described cubing body 1, described middle through hole is by the inlet hole 2 of concentricity line and portal and 3 form, the diameter of described inlet hole 2 apertures and bearing pin 4 to be measured allows the upper limit consistent, and described inlet hole 2 apertures are greater than described 3 apertures of portalling, and described inlet hole 2 apertures are consistent with the permissible error of described portal 3 aperture differences and bearing pin to be measured 4.

Wherein, described cubing also comprises a bearing 5, and described cubing body 1 is located on the described bearing 5.

The detection principle of bearing pin cubing of the present utility model is: when bearing pin 4 to be measured is carried out its examine of diameter, one end of bearing pin 4 to be measured is inserted from the inlet hole 2 of cubing body 1, terminate in inlet hole 2 if just an end of bearing pin 4 to be measured is inserted and 3 the junction of portalling, as shown in Figure 2, then this bearing pin 4 to be measured of explanation is certified products.When an end of bearing pin 4 to be measured is inserted from the inlet hole 2 of cubing body 1, insert again and portalled 3 o'clock if an end of bearing pin to be measured 4 passes inlet hole 2, as shown in Figure 3, illustrate that then the diameter of this bearing pin 4 to be measured less than the diameter of qualified bearing pin, is unacceptable product.When the end with bearing pin 4 to be measured inserts toward the inlet hole 2 of cubing body 1, in the time of but can't inserting, as shown in Figure 4, the diameter of this bearing pin 4 to be measured then is described greater than the diameter of qualified bearing pin, also be unacceptable product.

Pass through technique scheme, the utility model is by offering the inlet hole 2 that is divided into two sector holes footpath and portalling 3 at described cubing body 1, and the permissible error of the bearing pin 4 poor and to be measured of the diameter between two apertures is consistent, bearing pin to be measured 4 assigned toward inlet holes 2 its diameter is detected, detection efficiency is high, detect effective, thereby reached simple in structure, reasonable in design and the good purpose of effect.

Above-described only is a kind of bearing pin cubing preferred implementation of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims

1. bearing pin cubing, it is characterized in that, comprise the cubing body, offer middle through hole on the described cubing body, described middle through hole is comprised of with portalling the inlet hole of concentricity line, the diameter of described inlet hole aperture and bearing pin to be measured allows the upper limit consistent, and described inlet hole aperture is greater than the described aperture of portalling, and described inlet hole aperture is consistent with the permissible error of described portal aperture difference and bearing pin to be measured.

2. a kind of bearing pin cubing according to claim 1 is characterized in that described cubing also comprises a bearing, and described cubing body is located on the described bearing.