CN212158536U

CN212158536U - Quick positioning base of roundness measuring instrument

Info

Publication number: CN212158536U
Application number: CN202021148410.8U
Authority: CN
Inventors: 王建
Original assignee: Pharmaceutical And Clinical Medical Technology Service Tianjin Co ltd
Current assignee: Pharmaceutical And Clinical Medical Technology Service Tianjin Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-12-15
Anticipated expiration: 2030-06-19

Abstract

The utility model relates to the technical field of measuring instruments, in particular to a roundness measuring instrument quick positioning base, which comprises a base, an upper supporting block, a lower supporting block, a left moving clamping block, a right moving clamping block, an elliptical disc, a tension spring, a left guide rail, a right guide rail and a stepping motor; go up supporting block and bottom suspension splice and fix respectively the upper and lower both sides of base, left side guide rail and right guide rail are fixed respectively the left and right sides of base, left and right removal clamp splice and left and right guide rail sliding fit, step motor fixes its output of bottom of base passes the base with the bottom of elliptical disk is connected, the ring week of elliptical disk with set up respectively in the contact cooperation of the gyro wheel of left and right removal clamp splice bottom, the both ends of extension spring are connected with left and right removal clamp splice respectively. The device replaces a three-jaw chuck, has a simple integral structure, can quickly clamp and position the metal piece, and cannot damage the surface of the metal.

Description

Quick positioning base of roundness measuring instrument

Technical Field

The utility model relates to an instrument and equipment detects technical field, especially relates to a roundness measuring instrument quick positioning base.

Background

The roundness measuring instrument is a measuring tool for measuring roundness errors of workpieces by a rotating shaft method. The roundness measuring instrument is divided into a sensor rotary type and a workbench rotary type. During measurement, a measured piece and a precision shaft system are concentrically arranged, and the precision shaft system drives an inductive length sensor or a workbench to do precise circular motion. At present, a positioning device used by a roundness measuring instrument is generally a three-jaw chuck, and for some metal parts with higher fineness and heavier weight, the three-jaw chuck is adopted to scratch the metal surface very easily, so that the quality of a product is influenced. In addition, the positioning speed of the three-jaw chuck is relatively slow, and the working efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned technique, and provide a roundness measuring instrument quick positioning base.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the utility model provides a roundness measuring appearance quick positioning base which characterized in that: the device comprises a base, an upper supporting block, a lower supporting block, a left moving clamping block, a right moving clamping block, an elliptical disc, a tension spring, a left guide rail, a right guide rail and a stepping motor; go up supporting block and bottom suspension splice and fix respectively the upper and lower both sides of base, left side guide rail and right guide rail are fixed respectively the left and right sides of base, left side remove the clamp splice with left side guide rail sliding fit, right side remove the clamp splice with right side guide rail sliding fit, one side that left side removed the clamp splice and right side removal clamp splice corresponds is the arc respectively, the oval dish sets up the center of base, step motor fixes its output in the bottom of base passes the base with the bottom of oval dish is connected, the ring week of oval dish with set up the gyro wheel contact cooperation in left and right removal clamp splice bottom respectively, the both ends of extension spring are connected with left and right removal clamp splice respectively.

Preferably, the topmost parts of the upper and lower support blocks are located at a position which is half of the height of the left and right moving blocks.

Preferably, the surfaces of the upper and lower support blocks and the left and right movable clamping blocks are provided with anti-skid protective layers.

Compared with the prior art, the utility model has the advantages that the device replaces a three-jaw chuck, has simple integral structure, can quickly clamp and position the metal piece, and can not damage the metal surface.

Drawings

FIG. 1 is a perspective view of the present invention in a downward direction;

fig. 2 is a perspective view of the utility model from the top.

Detailed Description

Spatially relative terms such as "above … …", "above … …", "above … …", "above", and the like, may be used herein for ease of description to describe the spatial relationship of one feature or characteristic to another feature or characteristic as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 and 2, a roundness measuring instrument rapid positioning base comprises a base 1, an upper support block 2, a lower support block 3, a left moving clamp block 4, a right moving clamp block 5, an elliptical disk 6, a tension spring 7, a left guide rail 8, a right guide rail 9 and a stepping motor 10; go up supporting block and bottom suspension splice and fix respectively the upper and lower both sides of base, left side guide rail and right guide rail are fixed respectively the left and right sides of base, left side remove the clamp splice with left side guide rail sliding fit, right side remove the clamp splice with right side guide rail sliding fit, one side that left side removed the clamp splice and right side removal clamp splice corresponds is the arc respectively, the oval dish sets up the center of base, step motor fixes its output in the bottom of base passes the base with the bottom of oval dish is connected, the ring week of oval dish and the gyro wheel 11 contact cooperation that sets up respectively in left and right removal clamp splice bottom, herein, the both ends of extension spring are connected with left and right removal clamp splice respectively, need two extension springs like this, and the symmetry sets up in the upper and lower both sides of base. The tension springs can also be as shown in figure 1, one end of each tension spring is fixed on the base, and the other end of each tension spring is connected with the left and right movable clamping blocks, so that four tension springs are needed.

In the device, the upper support block and the lower support block play a role of supporting the metal piece, so the height of the upper support block and the lower support block cannot be higher than the height of the left movable clamping block and the right movable clamping block, and particularly, the topmost parts of the upper support block and the lower support block are positioned at the half position of the height of the left movable clamping block and the right movable clamping block.

In order to protect the surface of the metal piece, the surfaces of the upper support block, the lower support block, the left moving clamping block and the right moving clamping block are provided with anti-skid protective layers.

The working principle is as follows: during the use, step motor drives the oval dish earlier and rotates, because the oval dish is the ellipse, so long limit and the gyro wheel contact back of left and right removal clamp splice bottom, left and right removal clamp splice is in open state, puts into the back with the metalwork, and step motor rotates 90 degrees again, and at this moment, left and right removal clamp splice closes under the pulling of spring, presss from both sides the metalwork tightly, realizes the function of tight location of quick clamp.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a roundness measuring appearance quick positioning base which characterized in that: the device comprises a base, an upper supporting block, a lower supporting block, a left moving clamping block, a right moving clamping block, an elliptical disc, a tension spring, a left guide rail, a right guide rail and a stepping motor; go up supporting block and bottom suspension splice and fix respectively the upper and lower both sides of base, left side guide rail and right guide rail are fixed respectively the left and right sides of base, left side remove the clamp splice with left side guide rail sliding fit, right side remove the clamp splice with right side guide rail sliding fit, one side that left side removed the clamp splice and right side removal clamp splice corresponds is the arc respectively, the oval dish sets up the center of base, step motor fixes its output in the bottom of base passes the base with the bottom of oval dish is connected, the ring week of oval dish with set up the gyro wheel contact cooperation in left and right removal clamp splice bottom respectively, the both ends of extension spring are connected with left and right removal clamp splice respectively.

2. The roundness measuring instrument quick-positioning base of claim 1, wherein: the topmost parts of the upper and lower support blocks are positioned at the half position of the height of the left and right movable clamping blocks.

3. The roundness measuring instrument quick-positioning base of claim 1, wherein: the surfaces of the upper support block, the lower support block, the left moving clamping block and the right moving clamping block are provided with anti-skid protective layers.