CN210689464U

CN210689464U - Conical surface thickness dimension measuring device

Info

Publication number: CN210689464U
Application number: CN201922092342.1U
Authority: CN
Inventors: 周尚毅; 张少亨; 王展; 王龙
Original assignee: Chongqing Gearbox Co Ltd
Current assignee: Chongqing Gearbox Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-06-05
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a conical surface thickness dimension measuring device, this measuring device include \ 21274;, shape positioning frame and two activity measuring sticks of coaxial setting on positioning frame both arms, the middle section of \ 21274;, shape positioning frame is the location section, \ 21274;, the medial surface of shape positioning frame location section can laminate with the reference surface of tapering part, the main part of activity measuring stick is cylindrical, the looks remote site of two activity measuring sticks all sets up to the hemisphere, the axis of activity measuring stick and \ 21274;, the medial surface distance of shape positioning frame location section is the same as the distance of tapering part portion of awaiting measuring and its reference surface. The utility model discloses reduced the time and the cost that use the special instrument equipment to detect, simple structure, measurement convenience simultaneously can use it to detect the spare part in the course of working, effectively reduces the quality problems because of the clamping leads to many times to guarantee to improve processingquality and promote machining efficiency.

Description

Conical surface thickness dimension measuring device

Technical Field

The utility model relates to a size measurement device, in particular to conical surface thickness size measurement device.

Background

In machining, the angle and the thickness of the conical surface of most conical parts can be measured by adopting a conical gauge and a micrometer, but the shapes of parts are complex, the measurement of the size of the conical surface is very inconvenient, the measurement is difficult to be accurate by using the conventional micrometer, the quality cannot be ensured, and the efficiency is low. If each product is detected on a large tool microscope or three coordinates in the grinding process, the detection is too complicated and not economical, certain difficulty is caused for mass production, and the precision is greatly influenced by repeated clamping during re-processing under the condition of not being processed in place.

For example, in the existing taper part (see fig. 1), in order to ensure the machining accuracy, the machining process needs to ensure the accuracy of the taper angles α, β and the taper thickness D (the section dimension of the two tapers from the reference plane H), wherein the taper angles α, β can be measured by using taper gauges, and the machining angles are ensured by a machine tool, and generally do not change under the same batch and no special conditions, and only need to be measured once, or the taper angles are tested again after a certain number of tapers are machined, and each taper thickness D does not need to be measured, and the taper thickness D needs to be measured by using professional equipment, so that the process is complicated, and is not beneficial to mass production and machining.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a conical surface thickness dimension measuring device is provided, its easily operation, detection cost hang down, detection efficiency is high, is favorable to improving product processingquality and efficiency.

In order to solve the technical problem, the utility model provides a following technical scheme:

a conical surface thickness dimension measuring device comprises a v-21274, a shape positioning frame and two movable measuring rods coaxially arranged on two arms of the positioning frame, wherein the middle section of the v-21274is a positioning section, the inner side surface of the positioning section of the v-21274is attached to the reference surface of a taper part, the main body of each movable measuring rod is cylindrical, opposite ends of the two movable measuring rods are hemispherical, and the distance between the axial line of each movable measuring rod and the inner side surface of the positioning section of the v-21274is the same as the distance between the part to be measured of the taper part and the reference surface of the taper part.

The utility model relates to a conical surface thickness dimension measuring device, through \ 21274, shape positioning frame can advance line location fast, can carry out quick auxiliary measurement through two movable measuring rods, the thickness dimension of certain cross section department on the tapered part conical surface can be figured out fast to the cooperation micrometer, the inconvenient measuring problem of complicated conical surface big end size has been solved, time and cost that use the special instrument equipment to detect have been reduced, simultaneously this measuring device simple structure, the measurement is convenient, can use it to detect the spare in the course of working, effectively reduce the quality problems because of many times clamping leads to, thereby guarantee to improve processingquality and promote machining efficiency.

Preferably, the outer side of the positioning section of the v-21274;, i-shaped positioning frame is connected with a fixing screw through a threaded hole, and the end face of the rod head of the fixing screw can be contacted with a part through rotating the fixing screw, so that the well-positioned v-21274;, i-shaped positioning frame can be conveniently fixed.

Preferably, the two arms of the v-21274-shaped positioning frame are provided with through holes matched with the movable measuring rod, and the through hole structure is matched with the movable measuring rod, so that the v-shaped positioning frame is easy to process, manufacture, measure and control.

Preferably, the through holes in the two arms of the v-21274-shaped positioning frame are in clearance fit with the movable measuring rod, so that the movable measuring rod can be conveniently pushed, and the measurement precision can be ensured.

Preferably, the radius of the hemispherical end part of the movable measuring rod is the same as that of the main body part, so that the movable measuring rod is easy to machine and manufacture and saves materials.

Preferably, the two movable measuring rods have the same size, so that the processing and the manufacturing are facilitated and the interchangeability of parts is improved.

Compared with the prior art, the utility model relates to a conical surface thickness dimension measuring device's beneficial effect: the special tool is adopted to measure the thickness of a certain section on the conical surface of the tapered part, so that the time and cost for detecting the tapered part by using special equipment are reduced, meanwhile, the measuring device is simple in structure and convenient to measure, the tapered part can be used for detecting the tapered part in the machining process, the quality problem caused by repeated clamping is effectively reduced, and the machining quality is guaranteed to be improved and the machining efficiency is improved.

Description of the drawings:

fig. 1 is a schematic structural diagram of a tapered part.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the present invention.

Fig. 4 is a schematic diagram of the calculation of the dimension D in the present invention.

Wherein, the labels in the figure are: 1 is a positioning frame of a shape of '21274', 2 is a movable measuring rod, 3 is a taper part, 4 is a reference surface, and 5 is a fixed screw rod.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 1 to 3, the utility model relates to a conical surface thickness dimension measuring device, including a v 21274, shape positioning frame 1 and two movable measuring rod 2 of coaxial setting on positioning frame 1 both arms, a v 21274, the middle section of shape positioning frame 1 is the locating segment, a v 21274, the medial surface of shape positioning frame 1 locating segment can laminate with datum plane 4 of tapering part 3, the main part of activity measuring rod 2 is cylindrical, the looks remote site of two movable measuring rod 2 all sets up to the hemisphere, the axis of activity measuring rod 2 and a v 21274, the medial surface distance of shape positioning frame 1 locating segment is the same with the distance of tapering part 3 awaiting measuring part and its datum plane 4.

Wherein, the outer side of the positioning section of the v-21274-shaped positioning frame 1 is connected with a fixing screw rod 5 through a threaded hole.

Wherein, through holes matched with the movable measuring rod 2 are arranged on two arms of the v-21274-shaped positioning frame 1.

Wherein, through holes on two arms of the v-21274-shaped positioning frame 1 are in clearance fit with the movable measuring rod 2.

Wherein, the radius of the hemispherical end part of the movable measuring rod 2 is the same as that of the main body part.

Wherein, the two movable measuring rods 2 have the same size.

As shown in figures 1 to 4, the conical surface thickness dimension measuring device of the utility model can measure the conical surface thickness dimension according to the following steps of A, fitting and fixing the inner side surface of the positioning section of the conical surface thickness dimension measuring device with the reference surface 4 of the conical part 3, B, poking two movable measuring rods 2 to contact with the conical surface of the conical part 3 and measuring the distance dimension S between the two outer end surfaces of the two movable measuring rods 2 by a micrometer, C, calculating the thickness dimension D of a certain section of the conical part 3 by the formula D = S-B1-B2- (R/cos α -R) - (R/cos β -R), wherein B1 and B2 are the length dimensions of the two movable measuring rods 2, R is the radius dimensions of the hemispherical end parts of the two movable measuring rods 2, and α and β are the angles of the conical part 3, wherein, a fixing screw 5 can be adopted in the step A to fix the v 21274741.

Claims

1. The utility model provides a conical surface thickness dimension measuring device which characterized in that: the device comprises a v-21274, a shape positioning frame (1) and two movable measuring rods (2) coaxially arranged on two arms of the positioning frame (1), wherein the middle section of the v-21274is a positioning section, the inner side surface of the positioning section of the v-21274is attached to a datum plane (4) of a taper part (3), the main body of the movable measuring rod (2) is cylindrical, opposite ends of the two movable measuring rods (2) are hemispherical, the distance taper of the inner side surface of the positioning section of the movable measuring rod (2) is equal to the distance between a part to be measured of the part (3) and the datum plane (4) of the part.

2. The tapered surface thickness dimension measuring device of claim 1, wherein: the outer side of the locating section of the v-21274-shaped locating frame (1) is connected with a fixing screw rod (5) through a threaded hole.

3. A taper thickness dimension measuring apparatus according to claim 1 or 2, wherein: two arms of the v-21274-shaped positioning frame (1) are provided with through holes matched with the movable measuring rod (2).

4. A taper thickness measurement apparatus according to claim 3, wherein: the through holes on the two arms of the v-21274-shaped positioning frame (1) are in clearance fit with the movable measuring rod (2).

5. The tapered surface thickness dimension measuring device of claim 1, wherein: the radius of the hemispherical end part of the movable measuring rod (2) is the same as that of the main body part.

6. The tapered surface thickness dimension measuring device of claim 5, wherein: the two movable measuring rods (2) have the same size.