CN212721161U

CN212721161U - Customized three-jaw internal diameter screw micrometer measuring head

Info

Publication number: CN212721161U
Application number: CN202021912107.0U
Authority: CN
Inventors: 张继强; 蒋华健; 石爱鑫
Original assignee: Huaian Maiyi Electromechanical Equipment Co ltd
Current assignee: Huaian Maiyi Electromechanical Equipment Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-03-16
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a three-jaw internal diameter screw micrometer gauge head of customization, including the nut body and installation screw, the inside of the nut body is fixed with the nut screw, and the inside cover of nut screw is equipped with circular seat, the outside equidistance of circular seat is fixed with the claw body, and the outside of the claw body is provided with the claw screw, circular lid is installed to the outside front end of circular seat, the installation screw is located the front end of circular lid. This customized three-jaw internal diameter screw micrometer gauge head can satisfy the thread measurement of the other multiple specifications of internal thread major diameter, pitch diameter and path, has richened thread measurement's means and ability, this three-jaw gauge head internal thread micrometer's transformation has solved this measuring difficult problem in the internal thread trade the inside, need not to purchase similar import instrument abroad so, under the prerequisite that satisfies measurement function, user's measurement cost has been reduced, also not spend the expense of laboratory instrument examination for this reason.

Description

Customized three-jaw internal diameter screw micrometer measuring head

Technical Field

The utility model relates to a micrometer caliper gauge head technical field specifically is a three-jaw internal diameter screw micrometer gauge head of customization.

Background

The thread is a most widely applied mechanical part in the mechanical industry, and mainly used for fastening, sealing, power transmission and displacement, so that the measurement reliability of the thread is the same as that of a common mechanical part and is very important, the mechanical performance of the thread part is related to materials and a machining process, and the machining quality of geometric parameters is also an important factor influencing the performance of the thread part, so that the detection of the geometric parameters of the thread is an important link in the production process of the thread part, the thread is measured, analyzed and evaluated, the use of unqualified threads can be effectively reduced, and the connection failure is prevented, wherein a measuring head of a thread micrometer is an important tool for measuring the thread.

The existing detection method of the three-jaw internal diameter thread micrometer measuring head mostly measures partial parameters of threads, lacks the integral qualification judgment basis, cannot meet the actual requirements of production, has large influence of human factors, is difficult to control the quality of a gauge, can only judge whether the gauge is qualified or not and cannot give specific thread geometric parameter values if the gauge is judged by a frequently-disputed working gauge, has various specifications and low detection accuracy, is only suitable for the detection of general-accuracy thread workpieces, is only suitable for external thread specifications or internal thread specifications larger than a certain range, is difficult to detect by a measuring tool for small internal thread dimensions, cannot well meet the use requirements of people, and carries out technical innovation on the basis of the existing three-jaw internal diameter thread micrometer measuring head aiming at the conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a customized three-jaw internal diameter screw micrometer gauge head, which solves the problems that the detection method of the general three-jaw internal diameter screw micrometer gauge head proposed in the background technology mostly measures partial parameters of screw threads, lacks the integral qualification judgment basis, can not meet the actual requirements of production, has great influence of human factors, is not easy to control the quality of a gauge, can only judge whether the gauge is qualified after the working rule judgment of disputes frequently appears, but can not give specific thread geometric parameter values, has various specifications and low detection accuracy, is only suitable for the inspection of thread workpieces with general accuracy, and the measurement mode is only suitable for the external thread specification or the internal thread specification which is larger than a certain range, and the internal thread size of small dimension is difficult to realize through measuring tool and detects, can not be fine satisfies people's user demand problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a three-jaw internal diameter screw micrometer gauge head of customization, includes the nut body and installation screw, the inside of the nut body is fixed with the nut screw, and the inside cover of nut screw is equipped with circular seat, the outside equidistance of circular seat is fixed with the claw body, and the outside of the claw body is provided with the claw screw, circular lid is installed to the outside front end of circular seat, the installation screw is located the front end of circular lid, the cylinder cover is installed to the outside rear end of circular seat, the inside of cylinder cover is fixed with the body of rod, and the externally mounted of the body of rod has the axostylus axostyle.

Preferably, the claw body and the claw thread form an integrated structure, and the claw body is arranged circumferentially along the circle center of the circular seat.

Preferably, the mounting screws are fixedly connected with the circular cover, and the mounting screws are arranged circumferentially along the circle center of the circular cover.

Preferably, the shaft lever is movably connected with the claw body, and the shaft lever is circumferentially arranged along the circle center of the rod body.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a setting of the claw body and claw screw thread, change the claw body gauge head of internal micrometer into the claw body that accords with the screw thread profile modeling, can carry out accurate examination or proofreading to it before using, assess out the error value of each section range, we just can consider and compensate the error volume when implementing the measurement like this, thereby can improve the measurement accuracy in an appropriate amount, so in the use in fact, can use the internal thread micrometer to take the screw ring gauge of corresponding specification earlier and compare, go to measure the internal thread pitch diameter of product again, like this under same range, compare under same measuring range, then can use the measuring accuracy of measuring tool to the utmost;

2. the utility model discloses a circular seat, circular lid, the installation screw, the setting of cylinder cover and axostylus axostyle, utilize this three-jaw gauge head internal thread micrometer can satisfy the measurement of little specification internal thread pitch diameter, under the thinking of changing claw body type and structure, can satisfy the thread measurement of the other multiple specifications of internal thread major diameter and path, thread measurement's means and ability have been richened, this three-jaw gauge head internal thread micrometer's transformation has solved this measuring difficult problem in the internal thread trade the inside, so need not to purchase the similar import instrument abroad, under the prerequisite that satisfies measuring function, user's measurement cost has been reduced, also not the expense that spends laboratory instrument examination for this reason.

Drawings

FIG. 1 is an illustration of actual measurement;

FIG. 2 is a schematic view of the three-dimensional structure of the circular base of the present invention;

fig. 3 is a schematic view of the claw body mounting structure of the present invention.

In the figure: 1. a nut body; 2. a nut thread; 3. a claw body; 4. claw threads; 5. a circular seat; 6. a circular cover; 7. mounting screws; 8. a cylindrical sleeve; 9. a shaft lever; 10. a rod body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a three-jaw internal diameter screw micrometer gauge head of customization, includes nut body 1 and installation screw 7, its characterized in that: the nut screw thread 2 is fixed in the nut body 1, the circular seat 5 is sleeved in the nut screw thread 2, the claw bodies 3 are fixed on the circular seat 5 at equal intervals, the claw screw thread 4 is arranged on the outer portion of the claw body 3, an integrated structure is formed between the claw body 3 and the claw screw thread 4, the claw bodies 3 are arranged along the circle center of the circular seat 5 in a circumferential mode, through the arrangement of the claw bodies 3 and the claw screw thread 4, a measuring head of the claw body 3 of the inside micrometer is changed into the claw body 3 conforming to the thread profile, the claw body 3 can be accurately detected or calibrated before being used, the error value of each section of measuring range is estimated, therefore, the error value can be considered and compensated when the measurement is carried out, the measurement accuracy can be improved properly, in fact, in the using process, the inside thread micrometer can be used for comparing a thread ring gauge with a corresponding specification firstly, then the inside thread intermediate diameter of a product is measured, and in the same measuring range, the measurement precision of the measuring tool can be used to the maximum extent by comparison in the same measurement range;

the circular cover 6 is arranged at the front end of the outer part of the circular base 5, the mounting screws 7 are arranged at the front end of the circular cover 6, the mounting screws 7 are fixedly connected with the circular cover 6, the mounting screws 7 are arranged along the circle center of the circular cover 6 in a circumferential manner, the cylindrical sleeve 8 is arranged at the rear end of the outer part of the circular base 5, the rod body 10 is fixed inside the cylindrical sleeve 8, the shaft rod 9 is arranged outside the rod body 10, the shaft rod 9 is movably connected with the claw body 3, the shaft rod 9 is arranged along the circle center of the rod body 10 in a circumferential manner, the three-claw measuring head internal thread micrometer can meet the measurement of the small-size internal thread middle diameter through the arrangement of the circular base 5, the circular cover 6, the mounting screws 7, the cylindrical sleeve 8 and the shaft rod 9, and can meet the measurement of the internal thread middle diameter of the internal thread under the thought of changing the type and the structure of the claw body 3, and can meet the measurement of the large diameter, the measuring difficulty in the internal thread industry is solved by the remanufacturing of the three-jaw measuring head internal thread micrometer, so that a foreign similar import tool does not need to be purchased, the measuring cost of a user is reduced on the premise of meeting the measuring function, and the cost for laboratory instrument verification is also different.

The working principle is as follows: when the customized three-jaw internal diameter thread micrometer measuring head is used, firstly, during measurement, the inclined plane part of the jaw thread 4 outside the jaw body 3 is in contact with the inclined plane part of the nut thread 2 inside the measured nut body 1, the middle diameter size of the thread is read from the scale of the three-jaw internal diameter thread micrometer, when the nuts with different sizes are measured, the jaw body 3 is movably connected with the shaft rod 9, the shaft rod 9 is movably connected with the rod body 10, and the movable rod body 10 and the cylindrical sleeve 8 move back and forth through the external device, so that the jaw body 3 is controlled to stretch back and forth, the internal diameters of the nuts with different sizes are measured, and the customized three-jaw internal diameter thread micrometer measuring head is based on the working principle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a three-jaw internal diameter screw micrometer gauge head of customization, includes nut body (1) and installation screw (7), its characterized in that: the utility model discloses a nut, including nut body (1), the inside of nut body (1) is fixed with nut screw thread (2), and the inside cover of nut screw thread (2) is equipped with circular seat (5), the outside equidistance of circular seat (5) is fixed with claw body (3), and the outside of claw body (3) is provided with claw screw thread (4), circular lid (6) are installed to the outside front end of circular seat (5), installation screw (7) are located the front end of circular lid (6), cylinder cover (8) are installed to the outside rear end of circular seat (5), the inside of cylinder cover (8) is fixed with the body of rod (10), and the externally mounted of the body of rod (10) has axostylus axostyle (9).

2. The customized three-jaw id micrometer gauge head of claim 1, wherein: the claw bodies (3) and the claw threads (4) form an integrated structure, and the claw bodies (3) are arranged circumferentially along the circle center of the circular seat (5).

3. The customized three-jaw id micrometer gauge head of claim 1, wherein: the mounting screws (7) are fixedly connected with the circular cover (6), and the mounting screws (7) are arranged circumferentially along the circle center of the circular cover (6).

4. The customized three-jaw id micrometer gauge head of claim 1, wherein: the shaft lever (9) is movably connected with the claw body (3), and the shaft lever (9) is arranged circumferentially along the circle center of the rod body (10).