CN218747208U

CN218747208U - Three-coordinate detector positioning fixture

Info

Publication number: CN218747208U
Application number: CN202222583284.4U
Authority: CN
Inventors: 李青龙
Original assignee: Zhongshan Star Prototype Manufacturing Co ltd
Current assignee: Zhongshan Star Prototype Manufacturing Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-28
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses a three-coordinate detector positioning fixture, its characterized in that: the base is provided with a plurality of inclined datum planes for placing workpieces and a turnover pressing structure corresponding to the datum planes and used for pressing the workpieces, the turnover pressing structure comprises a pressing plate and a pressing seat, the pressing plate is rotatably connected with the pressing seat, a pressure maintaining mechanism enabling the pressing plate to maintain the pressing plate to apply locking pressure on the workpieces is arranged between the pressing plate and the pressing seat, and the base is placed on a detection datum plane of a three-coordinate detector through the bottom surface. Through the structure, one-time positioning can be realized, and a plurality of detections can be realized, so that the detection efficiency is also improved.

Description

Three-coordinate detector positioning fixture

Technical Field

The utility model relates to a work piece holder, especially a three-coordinate detector positioning fixture.

Background

The three-coordinate detector is a commonly used detector in machining production, and a plurality of workpieces are detected by the three-coordinate detector to ensure precision. The workpiece of the workpiece locating clamp comprises a bottom plate and a pipe body, wherein the bottom plate is inclined and not perpendicular to the central axis of the pipe body, the bottom surface of the bottom plate is a supporting surface and a reference surface of the bottom plate, and therefore when the workpiece is placed on a three-coordinate detector, the pipe body cannot be vertical but inclined, and the three-coordinate detector cannot detect the workpiece.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a three-coordinate detector positioning fixture.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a three-coordinate detector positioning fixture which characterized in that: the base is provided with a plurality of inclined datum planes for placing workpieces and a turnover pressing structure corresponding to the datum planes and used for pressing the workpieces, the turnover pressing structure comprises a pressing plate and a pressing seat, the pressing plate is rotatably connected with the pressing seat, a pressure maintaining mechanism enabling the pressing plate to maintain the locking pressure applied to the workpieces is arranged between the pressing plate and the pressing seat, and the base is placed on a detection datum plane of a three-coordinate detector through the bottom surface.

The pressure maintaining mechanism is a spring.

The pressing plate is provided with a first pin hole and a first pin, the first pin penetrates through the first pin hole, two end parts of the first pin are exposed outside the first pin hole, and the hook at one end of the spring is connected with the corresponding end part.

The base is provided with a plurality of mounting grooves and a second pin hole penetrating through the mounting grooves, the second pin hole is matched with the second pin hole, and the hook at the other end of the spring is connected with the second pin hole.

The pressing seat is provided with a through hole and a rotating shaft, the rotating shaft is fixed in the through hole, the two shaft heads are exposed out of the through hole, the pressing plate is provided with a connecting groove and a shaft hole formed in the wall of the connecting groove, and the pressing seat is located in the connecting groove and matched with the shaft hole in a rotating mode.

The pressing seat is provided with a screw hole communicated with the through hole, and the rotating shaft is fixed through a jackscrew matched with the screw hole.

And the pressing plate is provided with a U-shaped groove.

At least three convex pressing points are arranged on the pressing surface of the pressing plate.

The utility model has the advantages that: the utility model discloses a base, be equipped with the base that is used for placing the reference surface of work piece and the upset compact structure that is used for compressing tightly the work piece that corresponds with the reference surface of a plurality of slopes on the base, the base is placed on the detection reference surface of three-coordinate detector through the bottom surface, and the work piece is vertical state through correction of reference surface and when guaranteeing on three-coordinate detector that the body is to can be detected, and a plurality of work pieces can be fixed a position to this device once, thereby realize a plurality of detections, also improved detection efficiency.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a view of the overall structure of the present invention;

fig. 2 is a cross-sectional structure view of the present invention.

Detailed Description

Advantages and features of the present disclosure and methods of practicing the same will be clarified by the following embodiments described with reference to the accompanying drawings. This disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the present disclosure is to be limited only by the scope of the claims.

The shapes, sizes, proportions, angles, and numbers disclosed in the drawings for describing embodiments of the present disclosure are merely examples, and thus the present disclosure is not limited to the details shown. Like reference numerals refer to like elements throughout the specification. In the following description, when a detailed description of a related known function or configuration is determined to unnecessarily obscure the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having", and "including" described in this specification, other components may be added unless "only" is used. Unless indicated to the contrary, singular terms may include the plural.

In explaining the elements, although not explicitly described, the elements are understood to include error ranges.

In describing the positional relationship, for example, when the positional relationship is described as "on 8230 \8230;," on 8230;, "\82308230;," "on 8230;, \8230; below" and \8230; "adjacent," one or more portions may be disposed between two other portions unless "immediately" or "directly" is used.

In describing the temporal relationship, for example, when the temporal sequence is described as "after" \8230; \8230, then "," next ", and" before "\8230; \8230, before" may include the case of discontinuity unless "just" or "directly" is used.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

As will be well understood by those skilled in the art, the features of the different embodiments of the present disclosure may be partially or fully coupled or combined with each other, and may cooperate with each other and be technically driven in various ways. Embodiments of the present disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

Referring to fig. 1 and 2, the utility model discloses a three-coordinate detector positioning fixture, including base 1, base 1's bottom is square board, and the bottom surface and the side of square board are the bottom surface and the side of following base also, base 1 places on the detection reference surface of three-coordinate detector through the bottom surface, and base 1's side also with the side reference surface contact location of three-coordinate detector, of course base 1's side and bottom surface all belong to the finish machining face.

The base 1 is provided with a plurality of inclined reference surfaces 2 for placing workpieces and a turnover pressing structure corresponding to the reference surfaces 2 and used for pressing the workpieces, the reference surfaces 2 are also processing surfaces, and the angle relationship between the reference surfaces 2 and the side surfaces and the bottom surface of the base 1 is accurately determined, so that when the workpieces 3 are placed on the reference surfaces 2, the relationship between the workpieces 3 and the detection reference surfaces 2 of the three-coordinate detector is determined, the reference surfaces 2 are symmetrically arranged in two rows, and four workpieces are arranged in each row at equal intervals.

As shown in the figure, upset compact structure includes clamp plate 4 and pressure seat 5, clamp plate 4 rotates with pressure seat 5 to be connected, and is equipped with the pressure retaining mechanism who makes clamp plate 4 keep applying locking pressure to work piece 3 between clamp plate 4 and pressure seat 5, in this application, pressure retaining mechanism is spring 6. Because the spring 6 is simple in installation structure and low in cost.

As shown, the mounting structure of the spring 6 is: be equipped with pinhole one and pin 7 on the clamp plate 4, pin 7 passes pinhole one and both ends expose outside pinhole one, the couple of the one end of spring 6 and the end connection who corresponds, in this application, the tip that corresponds is porose, and the couple passes this hole, pinhole one and pin 7 tight fittings, be equipped with a plurality of mounting grooves 8 on the base 1 and link up the pinhole two of mounting groove 8, two 9 and the cooperation of pinhole two, the couple and the two 9 connections of pin of the other end of spring 6, two 9 both ends of pin also porose, the couple also passes this hole, and above-mentioned structure processing is simple, and easy the manufacturing, and 6 pulling forces of spring are more even moreover.

As shown in the figure, be equipped with through-hole and pivot 10 on pressing seat 5, this pivot 10 is fixed in the through-hole and the diaxon head exposes outside the through-hole, spread groove and the shaft hole that sets up on the cell wall of spread groove on the clamp plate 4, press seat 5 to be located the spread groove and axial head portion and shaft hole normal running fit, be equipped with the screw that link up with the through-hole on pressing seat 5, pivot 10 is fixed through 11 with screw complex jackscrews. Therefore, the pressure plate 4 can rotate around the rotating shaft 10 under the tension of the spring 6 and press the workpiece 3, and the processing and manufacturing are convenient, and the pressure plate 4 is manually pulled open when the workpiece 3 is clamped.

The pressure plate 4 is provided with a U-shaped groove 12, the U-shaped groove 12 avoids the pipe part of the workpiece 3, so that the pressure plate can be pressed on the bottom plate of the workpiece 3, at least three convex pressure points 13 are arranged on the pressure surface of the pressure plate 4, because the pressure surface of the bottom plate of the workpiece 3 is not very flat, if the surface and the surface contact can cause uneven contact, the bottom plate of the workpiece 3 can be bent and tilted, so that the four pressure points 13 are adopted for contact, so that the pressure can be ensured to be even, the bottom surface of the bottom plate of the workpiece 3 is in good contact with the reference surface 2, the bottom surface of the bottom plate of the workpiece 3 is also the reference surface 2 of the workpiece 3, and the measurement is accurate. Since the device is manual, in order to facilitate manual actuation of the platen 4, a latch plate 14 is also provided which is integral with the platen 4.

The embodiment of the present invention provides a positioning fixture for a three-coordinate measuring machine, which is described in detail above, and the detailed embodiments of the present invention are described herein, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be changes in the specific embodiments and the application range, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a three coordinate detector positioning fixture which characterized in that: the base is provided with a plurality of inclined datum planes for placing workpieces and a turnover pressing structure corresponding to the datum planes and used for pressing the workpieces, the turnover pressing structure comprises a pressing plate and a pressing seat, the pressing plate is rotatably connected with the pressing seat, a pressure maintaining mechanism enabling the pressing plate to maintain the pressing plate to apply locking pressure on the workpieces is arranged between the pressing plate and the pressing seat, and the base is placed on a detection datum plane of a three-coordinate detector through the bottom surface.

2. The three-coordinate measuring machine positioning jig of claim 1, wherein: the pressure maintaining mechanism is a spring.

3. The three-coordinate detector positioning fixture of claim 2, wherein: the pressing plate is provided with a first pin hole and a first pin, the first pin penetrates through the first pin hole, two end parts of the first pin are exposed outside the first pin hole, and the hook at one end of the spring is connected with the corresponding end part.

4. The three-coordinate detector positioning fixture of claim 2, wherein: the base is provided with a plurality of mounting grooves and a second pin hole penetrating through the mounting grooves, the second pin hole is matched with the second pin hole, and the hook at the other end of the spring is connected with the second pin hole.

5. The three-coordinate detector positioning fixture of claim 1, wherein: the pressing seat is provided with a through hole and a rotating shaft, the rotating shaft is fixed in the through hole, the two shaft heads are exposed out of the through hole, the pressing plate is provided with a connecting groove and a shaft hole formed in the wall of the connecting groove, and the pressing seat is located in the connecting groove and matched with the shaft hole in a rotating mode.

6. The three-coordinate measuring machine positioning fixture of claim 5, wherein: the pressing seat is provided with a screw hole communicated with the through hole, and the rotating shaft is fixed through a jackscrew matched with the screw hole.

7. The three-coordinate detector positioning fixture of claim 1, wherein: and the pressing plate is provided with a U-shaped groove.

8. The three-coordinate measuring machine positioning jig of claim 1, wherein: at least three convex pressing points are arranged on the pressing surface of the pressing plate.