CN214276761U

CN214276761U - Universal rolling screw pitch diameter detection comparator

Info

Publication number: CN214276761U
Application number: CN202120318921.8U
Authority: CN
Inventors: 滕玉霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-09-24
Anticipated expiration: 2031-02-04

Abstract

The universal rolling screw pitch diameter detects the comparator. At present, each lead screw manufacturer adopts a means for detecting the pitch diameter of the screw nut according to respective actual conditions, and has the problems that: the diameter precision of the spherical measuring head is difficult to achieve the grade of the steel ball, so that the tangent point of the measuring head and the thread groove of the nut is inconsistent, and measuring errors are caused; during three-needle measurement, the pitch of the measuring head is difficult to be consistent with that of a nut actually processed, and measuring balls in the two grooves are not completely contacted with the groove walls, so that measurement errors are caused. The utility model discloses a constitution includes: base member (1), the base member top is connected with gauge stand (4), and handle (10) are installed to the rear side, install instruction table (11) on the gauge stand, instruction table lower part cover has table cover (15), the table cover passes through the fix with screw on the gauge stand, rolling guide (2) are connected on base member upper portion, sub-unit connection has sliding guide (6). The utility model is used for detect roll screw pitch diameter.

Description

Universal rolling screw pitch diameter detection comparator

Technical Field

The utility model relates to a roll screw and detect technical field, concretely relates to general roll screw pitch diameter and detect comparator.

Background

With the wide application of numerical control machines and automatic production equipment, the demand of a rolling screw pair of key functional components is increasing day by day, and the pitch diameter measurement of a grinding internal thread of a nut internal thread fine machining process, which is one of important processes for manufacturing the rolling screw pair, is important. At present, each lead screw manufacturer adopts corresponding detection means according to respective actual conditions, such as various inner diameter mechanical inspection instruments, profile gauges and the like, but has certain problems to influence the popularization and the use thereof, and the inner diameter provided on the market at present mainly has two problems: (1) the diameter precision of the spherical measuring head is difficult to achieve the grade of the steel ball, so that the tangent point of the measuring head and the thread groove of the nut is inconsistent, and measuring errors are caused; (2) during three-needle measurement, the pitch of the measuring head is difficult to be consistent with that of a nut actually processed, and measuring balls in the two grooves are not completely contacted with the groove walls, so that measurement errors are caused. When measuring with the contourgraph, on the one hand because constitute by several circular arcs during the cell type, the change of gauge head top sphere contact point, the out-of-roundness of gauge head sphere will arouse measuring error, and on the other hand contourgraph cost is high, hardly every station configuration one when mass production, at the screw intermediate diameter measuring tool that the roll lead screw manufacturing enterprise needs a measuring accuracy height, facilitates the use, the cost is lower relatively.

Disclosure of Invention

The utility model aims at providing a general roll screw pitch diameter detects comparator.

The above purpose is realized by the following technical scheme:

a universal rolling nut pitch diameter detection comparator comprises: the top of the base body is connected with a gauge stand, the rear side of the base body is provided with a handle, the gauge stand is provided with an indicating gauge, the lower part of the indicator is sleeved with a meter sleeve which is fixed on a meter seat through a screw, the upper part of the matrix is connected with a rolling guide rail, the lower part of the matrix is connected with a sliding guide rail, a rolling slide block is arranged in the rolling guide rail, a measuring head of the indicating gauge is contacted with the upper end surface of the rolling slide block, the front side of the rolling slide block is connected with an upper measuring arm component, the rear side is provided with a button, the bottom is provided with a force measuring spring, the other end of the force measuring spring is fixed in a spring baffle, the spring baffle is connected on the base body, a steel ball is arranged between the guide rail and the slide block, the steel ball is arranged in the retainer, a slide adjusting slide block is arranged in the slide guide rail, the front side of the sliding adjusting sliding block is connected with a lower measuring arm assembly, and the sliding adjusting sliding block is locked through a fastening screw.

General roll screw pitch diameter detect comparator, it includes single ball measuring arm and survey ball to go up measuring arm subassembly, it installs to survey the ball the cylinder type of single ball measuring arm is downthehole, single ball measuring arm pass through strong magnet and locating pin with the slider is connected, down measuring arm subassembly includes two ball measuring arms, surveys ball holder and surveys the ball, it passes through to survey the ball holder and installs in the V type groove of two ball measuring arms, survey the ball in the measuring arm subassembly down can follow one section distance of two ball measuring arm axial float.

Has the advantages that:

the utility model relates to a universal rolling screw pitch diameter detection comparator, the measuring part is composed of a double-ball measuring arm, a single-ball measuring arm and three measuring balls, the measuring balls on the double-ball measuring arm are tangent with the axial V-shaped surface of the double-ball measuring arm, a measuring ball holder keeps the double-ball measuring arm to float for a certain distance along the axial direction of the double-ball measuring arm and not to fall off, bad contact between three steel balls and a roller path caused by the inconsistency of the distance between the two measuring balls and the screw lead can not be generated during measurement, the single-ball measuring arm and the double-ball measuring arm are designed into different specifications according to the specification of a screw, and the single-ball measuring arm and the double-ball measuring arm are respectively and rapidly connected and replaced with a rolling slide block and a sliding adjusting slide block by two positioning pin positioning and strong magnetic blocks, the utility model can meet the accurate measurement of the screw pitch diameter of the fine grinding process of the rolling screw, especially when the machine tool is adjusted to process the first workpiece, the measurement is accurate, the structure is simple and reliable, the cost is low, and the practicability is strong.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of the drawings;

FIG. 4 is a cross-sectional view taken along line C-C of the drawings;

FIG. 5 is a cross-sectional view taken along line D-D of the drawing;

FIG. 6 is a schematic structural view of the upper arm assembly;

FIG. 7 is a schematic structural view of the lower arm assembly;

in the figure: 1. the measuring device comprises a base body, 2, a rolling guide rail, 3, a rolling slide block, 4, a gauge stand, 5, a sliding adjusting slide block, 6, a sliding guide rail, 7, a spring baffle, 8, a fastening screw, 9, a button, 10, a handle, 11, an indicating gauge, 12, a retainer, 13, a steel ball, 14, a force measuring spring, 15, a gauge sleeve, 16, an upper measuring arm component, 17, a lower measuring arm component, 18, a gauge ring, 19, a single-ball measuring arm, 20, a measuring ball, 21, a strong magnet, 22, a positioning pin, 23, a double-ball measuring arm, 24 and a measuring ball retainer.

The specific implementation mode is as follows:

example 1:

a universal rolling nut pitch diameter detection comparator comprises: the measuring instrument comprises a base body 1, wherein the top of the base body is connected with a gauge stand 4, the rear side of the base body is provided with a handle 10, the gauge stand is provided with an indicating meter 11, the lower part of the indicating meter is sleeved with a gauge sleeve 15, the gauge sleeve is fixed on the gauge stand through a screw, the upper part of the base body is connected with a rolling guide rail 2, the lower part of the base body is connected with a sliding guide rail 6, the rolling guide rail is internally provided with a rolling slide block 3, a measuring head of the indicating meter is in contact with the upper end surface of the rolling slide block, the front side of the rolling slide block is connected with an upper measuring arm component 16, the rear side of the rolling slide block is provided with a button 9, the bottom of the rolling slide block is provided with a force measuring spring 14, the other end of the force measuring spring is fixed in a spring baffle 7, the spring baffle is connected on the base body, a steel ball 13 is arranged between the guide rail and the slide block, the steel ball is arranged in a retainer 12, the sliding guide rail is internally provided with a sliding adjusting slide block 5, the front side of the sliding adjusting slide block is connected with a lower measuring arm component 17, the sliding adjusting slide block is locked by a fastening screw 8.

Example 2:

according to the universal rolling screw pitch diameter detection comparator described in embodiment 1, the upper measuring arm assembly includes a single ball measuring arm 19 and a measuring ball 20, the measuring ball is mounted in a cylindrical hole of the single ball measuring arm, the single ball measuring arm is connected to the slider through a strong magnet 21 and a positioning pin 22, the lower measuring arm assembly includes a double ball measuring arm 23, a measuring ball holder 24 and a measuring ball, the measuring ball is mounted in a V-shaped groove of the double ball measuring arm through the measuring ball holder, and the measuring ball in the lower measuring arm assembly can float a distance along the axial direction of the double ball measuring arm;

the working principle is as follows: the measuring part consists of a double-ball measuring arm, a single-ball measuring arm and three measuring balls, wherein before measurement, the pair of gauge ring 18 is used for zeroing, a button is pressed by hands during measurement, the single-ball measuring arm is pressed down to facilitate the two measuring arms to be inserted into a nut hole, the double-ball measuring arm is fixed by a fastening screw, the single-ball measuring arm is arranged on a slide block capable of moving up and down, a measuring head of an indicator is contacted with the upper end surface of the slide block, the measuring balls on the double-ball measuring arm are tangent to an axial V-shaped surface of the double-ball measuring arm, a measuring ball retainer keeps the axial floating distance of the double-ball measuring arm and cannot fall off, because the measuring balls can axially move slightly along the double-ball measuring arm, poor contact between three steel balls and a roller path caused by the fact that the distance between the two measuring balls is inconsistent with the lead of a nut during measurement, a force measuring spring provides force measurement, the three measuring balls can be ensured to be contacted with the roller path of the measured nut under the action of the force measuring spring, and the accurate comparison and measurement of the middle diameter of the roller path of the nut can be realized, the diameter value of the gauge ring gauge of the measuring instrument is 'nominal pitch diameter of a nut + diameter of a measuring ball', a sliding guide rail at the lower part of a base body is used for adjusting the size of the pitch diameter and detecting the nuts with the same pitch and different specifications, a single ball measuring arm and a double ball measuring arm are designed into different specifications according to the specifications of the nuts, and the single ball measuring arm and the double ball measuring arm are respectively positioned by two positioning pins and are respectively and quickly connected and replaced with a rolling sliding block and a sliding adjusting sliding block by a strong magnetic block.

Claims

1. A universal rolling nut pitch diameter detection comparator comprises: the matrix, its characterized by: the utility model discloses a measuring instrument, including base member, handle, roller guide, sliding guide, roll guide, slide rail, measuring head, measuring arm subassembly, measuring spring, spring baffle, slide rail, measuring slide block front side, measuring arm subassembly, measuring spring, spring baffle, slide rail, measuring slide block, slide adjusting slider front side is connected with down the measuring arm subassembly, slide adjusting slider passes through fastening screw and locks.

2. The universal rolling nut pitch diameter detection comparator as claimed in claim 1, wherein: go up the measuring arm subassembly and constitute including single ball measuring arm and survey the ball, survey the ball and install the cylinder type of single ball measuring arm is downthehole, single ball measuring arm pass through strong magnet and locating pin with the slider is connected, down the measuring arm subassembly include two ball measuring arms, survey the ball holder and survey the ball, survey the ball and pass through survey the ball holder and install in the V type groove of two ball measuring arms, survey the ball in the measuring arm subassembly group down can follow one section distance that two ball measuring arms axial float.