CN201715971U

CN201715971U - Internal thread depth measuring gauge

Info

Publication number: CN201715971U
Application number: CN2010202314458U
Authority: CN
Inventors: 萧君廉
Original assignee: ZHONGSHAN MINGMING ALUMINUM PRODUCTS CO Ltd
Current assignee: ZHONGSHAN MINGMING ALUMINUM PRODUCTS CO Ltd
Priority date: 2010-06-18
Filing date: 2010-06-18
Publication date: 2011-01-19
Anticipated expiration: 2020-06-18

Abstract

The utility model discloses an internal thread depth measuring gauge comprising a body and a scale bar with one end sleeved in the body, wherein inner cores pass through the body and the scale bar; one end of each inner core is provided with a regulating circular seat, and the other end of each inner core is provided with a go gauge; the body and the scale bar can move relatively along an axial direction; the gauge is characterized in that a bearing is arranged in the body; the adjusting circular seat is connected with the body through the bearing; and the body and the adjusting circular seat can rotate relatively. Because a bearing component is arranged in the body of the internal thread depth measuring gauge, the scale bar does not rotate with the go gauge when the go gauge is screwed into an internal threaded hole, and the scales on the scale bar always face to the human eyes so that a user can read very conveniently, thereby improving the measurement precision of the internal thread depth measuring gauge.

Description

A kind of internal thread depth survey rule

Technical field

The utility model relates to a kind of internal thread depth survey rule.

Background technology

In machining process, to the surface of the part tapping of holing is that operation very general together in the machinery manufacturing industry and this procedure are very big to follow-up operation influence, the quality of institute's tapping directly influences the installation and the assembling of other parts in the subsequent handling, even has influence on the quality of entire product.Therefore the detection of internal thread is the important step of a control internal thread quality, and the detection of the internal thread degree of depth is the important component part of the detection of internal thread, and internal thread depth survey rule are the major equipments that detect the internal thread degree of depth.

General on the market internal thread depth survey rule mostly comprise a drift and a scale bar, drift screws in the internal thread hole during use, the scale bar is also along with rotation, when if drift forwards the end of internal thread to, scale on the scale bar forwards the position back to human eye just to, the user need turn detected part, just can see reading; If heavy parts can't overturn, have only user oneself to forward the position corresponding to so and go just can see reading with scale; Sometimes owing to the restriction in place, the user can not forward the position corresponding with scale to and go, and can't see reading even.The existence of above defective has brought great inconvenience to the user.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of scale bar and can not advise with the internal thread depth survey that drift rotates.

The technical scheme that its technical matters that solves the utility model adopts is:

Internal thread depth survey rule, comprise that a body and an end are set in intrinsic scale bar, be equipped with inner core in body and the scale bar, one end of inner core is equipped with regulates the circle seat, the other end of inner core is equipped with drift, can move axially relatively between described body and the scale bar, it is characterized in that: bearing is installed in the body, described adjustment circle seat is connected with body by bearing, can do relative rotation between round of body and the adjustment.

Be equipped with bearing fixed seat in the described bearing, the end that bearing fixed seat passes in the bearing with adjust the circle seat and fixedly connected.

Described bearing is a unilateral bearing.

The beneficial effects of the utility model are: because be provided with bearing assembly in body, when drift screws in the internal thread hole, the scale bar can not rotate with it, scale on the scale bar is faced people's eyes all the time, very convenient when making user's reading, but also improved the measuring accuracy of internal thread depth survey rule.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the regular body schematic views of internal thread depth survey;

Fig. 2 is the cross section view of internal thread depth survey rule A-A;

Fig. 3 is the explosive view of internal thread depth survey rule.

Embodiment

Referring to figs. 1 through Fig. 3, a kind of internal thread depth survey rule provided by the utility model, comprise that a body 1 and an end are set in the scale bar 2 in the body 1, be equipped with inner core 6 in body 1 and the scale bar 2, one end of inner core 6 is equipped with adjusts circle seat 3, the other end of inner core 6 is equipped with drift 4, can move axially relatively between described body 1 and the scale bar 2.

As shown in the figure, bearing 8 is installed in the body 1, is equipped with bearing fixed seat 7 in the bearing 8, the end that bearing fixed seat 7 passes in the bearing 8 with adjust circle seat 3 and fixedly connected.Bearing of the present utility model has adopted unilateral bearing, and unilateral bearing can only rotate to a direction when rotating, and has eliminated when screwing in screw thread the gap error that may bring because of revolution like this, the corresponding measuring accuracy that has improved this internal thread depth survey rule.Certainly, an end of adjusting circle seat 3 can directly be connected with bearing fixing, and is connected with body 1 by bearing 8, thereby makes inner core 6 can pass through to adjust circle seat 3 rotation in body 1 and scale bar 2.

Be provided with scale indication end 11 with the corresponding end in scale bar 2 positions on the body 1, corresponding scale just can demonstrate the reading of the internal thread degree of depth on the 11 sensing scale bars 2 of scale indication end.One end of scale bar 2 has step 22; Correspondingly position is provided with bayonet socket 12 in the body 1, and bayonet socket 12 blocks step 22, has limited scale bar 2 moving along its axial direction.When step 22 during just in bayonet socket 12 positions, the zero-bit on the scale bar 2 is just in time pointed in the scale indication end 11 on the body 1.Spring 5 is housed in the scale bar 2, and an end of this spring 5 withstands on the step surface 21 in the scale bar 2, and the other end withstands on the end face of bearing fixed seat 7.Spring 5 is to be in compressive state when original state, guaranteed that like this step 22 on the scale bar 2 is in the state that blocks mutually with bayonet socket 12 all the time, guaranteed that correspondingly scale indication end 11 points to the zero-bit on the scale bar 2 all the time when original state, and also can make scale bar 2 and body 1 get back to original state automatically at the elastic force that internal thread depth survey rule are measured the rear spring 5 that finishes.

As shown in the figure, inner core 6 passes spring 5, bearing fixed seat 7 and scale bar 2, fixedlys connected with adjustment circle seat 3 by set screw 9, and an end of inner core 6 is equipped with drift 4.When adjusting 3 rotations of circle seat, inner core 6 can rotate thereupon.

When using internal thread depth survey rule, scale bar 2 terminal surfaces withstand on the piece surface of internal thread hole end face and fix, circle seat 3 is adjusted in rotation, adjust circle seat 3 and drive bearing fixed seat 7 and inner core 6 rotations, and make drift 4 rotation by inner core 6, body moves axially together with the axis of drift along the scale bar simultaneously, drift 4 is screwed in the threaded hole, the distance that drift 4 moves down is exactly the distance that body 1 relative scale bar 2 moves down, and the reading that this moment, scale indication end 11 was pointed on the scale bars 2 is the reading of the degree of depth of screw thread.

Claims

1. an internal thread depth survey is advised, comprise that a body and an end are set in intrinsic scale bar, be equipped with inner core in body and the scale bar, one end of inner core is equipped with regulates the circle seat, the other end of inner core is equipped with drift, can move axially relatively between described body and the scale bar, it is characterized in that: bearing is installed in the body, described adjustment circle seat is connected with body by bearing, and described inner core can rotate in body and scale bar by adjusting the circle seat.

2. a kind of internal thread depth survey rule according to claim 1 is characterized in that: be equipped with bearing fixed seat in the described bearing, the end that bearing fixed seat passes in the bearing with adjust circle and fixedly connected.

3. a kind of internal thread depth survey rule according to claim 1 and 2, it is characterized in that: stating bearing is unilateral bearing.

4. a kind of internal thread depth survey rule according to claim 1, it is characterized in that: be provided with spring in the body, an end of spring is resisted against the end face of bearing fixed seat, and the other end is resisted against on the step surface that is arranged in the scale bar.