CN211824323U - A three-coordinate measuring platform with positioning fixture - Google Patents

Abstract

The utility model discloses a take positioning fixture's three-dimensional measurement platform, including three-dimensional measurement platform body and set up the positioning fixture on three-dimensional measurement platform body, and the three direction of XYZ of positioning fixture and the three direction of XYZ of three-dimensional measurement platform body are just to corresponding arranging. The utility model discloses take positioning fixture's three-coordinate measuring platform to realize the location of positioning fixture and work piece, further realized work piece and three-coordinate testing platform's location, guaranteed measurement accuracy, reduction in production cost, improvement measurement of efficiency, simple to operate, simple to realize three-coordinate's full automatic measure.

Description

A three-coordinate measuring platform with positioning fixture

technical field

The utility model relates to the technical field of measurement technology, in particular to a three-coordinate measurement platform with a positioning fixture.

Background technique

Cylinder block and cylinder head are the main engine products, and qualified casting size is an important guarantee to ensure processing, assembly and production of high-quality engines. The fixture is an important part of the three-coordinate measurement, and the current fixture has no positioning design, no fixing device, the workpiece, the fixture, and the three coordinates are not organically combined, so accurate and repeatable measurement cannot be achieved. Manually mistakenly picking points often causes needle strikes, damages equipment, increases financial costs, and greatly affects accuracy and measurement efficiency.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a three-coordinate measuring platform with a positioning fixture, which can ensure the measurement accuracy, reduce the production cost and improve the measurement efficiency, aiming at the deficiencies of the above-mentioned technologies.

In order to achieve the above purpose, the three-coordinate measuring platform with a positioning fixture designed by the present invention includes a three-coordinate measuring platform body and a positioning fixture arranged on the three-coordinate measuring platform body, and the three directions of XYZ and the three-coordinate of the positioning fixture are The three directions of XYZ of the measuring platform body are arranged in positive correspondence.

Further, the positioning fixture includes a bottom plate, a pressure plate clamped around the bottom plate, and at least one set of positioning units, each set of the positioning units includes a cushion block, a pair of support columns symmetrically arranged on the lower surface of the cushion block, and a pair of support columns installed on the cushion block. Dowel pin in the middle of the upper surface of the block.

Further, one end of the pressing plate is L-shaped and clamped to the edge of the bottom plate, and the other end of the pressing plate is fixed on the surface of the body of the three-coordinate measuring platform by bolts.

Further, the surface of the bottom plate is provided with a plurality of positioning holes, the plurality of positioning holes are arranged in an array, and the support columns of each set of the positioning units are inserted and matched with the positioning holes.

Further, the positioning fixture may further include at least a pair of positioning support forks, the positioning support forks are inserted and matched with the positioning holes.

Compared with the prior art, the utility model has the following advantages: the three-coordinate measuring platform with the positioning fixture of the utility model realizes the positioning of the positioning fixture and the workpiece, further realizes the positioning of the workpiece and the three-coordinate detection platform, ensures the measurement accuracy, It can reduce production cost and improve measurement efficiency. It is easy and simple to install, so as to realize the automatic measurement of three coordinates.

Description of drawings

Fig. 1 is the three-coordinate measuring platform of the utility model and the installation structure schematic diagram of the positioning fixture base plate;

2 is a schematic structural diagram of a positioning fixture of the present invention;

Figure 3 is a schematic diagram of the positioning and installation of the cylinder head;

Figure 4 is a schematic diagram of the positioning and installation of the cylinder.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 1 is a three-coordinate measuring platform with a positioning fixture, including a three-coordinate measuring platform body 1 and a positioning fixture 2 arranged on the three-coordinate measuring platform body 1, and the three directions of XYZ and the three-coordinate measurement of the positioning fixture 2 are The three directions of XYZ of the platform body are arranged in positive correspondence.

As shown in FIG. 2 , the positioning fixture 2 includes a base plate 3 , a pressure plate 4 clamped around the base plate 3 and at least one set of positioning units 6 . For the support column 7 and the positioning pin 9 installed in the middle position of the upper surface of the spacer block 8 . One end of the pressing plate 4 is L-shaped clamped on the edge of the bottom plate 3, and the other end of the pressing plate 4 is fixed on the surface of the three-coordinate measuring platform body 1 by bolts, so that the bottom plate 3 is fixedly installed on the three-coordinate measuring platform body 1 through the pressing plate 4 At the same time, the surface of the bottom plate 3 is provided with a number of positioning holes 5, and the positioning holes 5 are arranged in an array. In addition, at least one pair of positioning support forks 10 may also be included, and the positioning support forks 10 are inserted and matched with the positioning holes 5 .

As shown in Figure 3, when the workpiece is a cylinder head, two sets of the same positioning units are used for positioning and installation of the cylinder head; as shown in Figure 4, when the workpiece is a cylinder block, a set of positioning units and a pair of positioning supports can be used The fork is positioned on the cylinder block. Therefore, the positioning of the positioning fixture and the workpiece is realized, and the positioning of the workpiece and the three-coordinate detection platform is further realized. The installation is convenient and simple, and the measurement accuracy is high.

Claims (5)

1. The utility model provides a take positioning fixture's three-coordinate measuring platform which characterized in that: the three-dimensional coordinate measuring platform comprises a three-dimensional coordinate measuring platform body (1) and a positioning clamp (2) arranged on the three-dimensional coordinate measuring platform body (1), wherein the three XYZ directions of the positioning clamp (2) and the three XYZ directions of the three-dimensional coordinate measuring platform body are arranged in a corresponding mode.

2. The three-coordinate measuring platform with the positioning fixture of claim 1, wherein: the positioning fixture (2) comprises a bottom plate (3), a pressing plate (4) clamped around the bottom plate (3) and at least one set of positioning unit (6), wherein each set of positioning unit (6) comprises a cushion block (8), a pair of supporting columns (7) symmetrically arranged on the lower surface of the cushion block (8) and a positioning pin (9) arranged in the middle of the upper surface of the cushion block (8).

3. The three-coordinate measuring platform with the positioning fixture of claim 2, wherein: one end of the pressing plate (4) is in L-shaped clamping connection with the edge of the bottom plate (3), and the other end of the pressing plate (4) is fixed on the surface of the three-coordinate measuring platform body (1) through bolts.

4. The three-coordinate measuring platform with the positioning fixture of claim 2, wherein: the surface of the bottom plate (3) is provided with a plurality of positioning holes (5), the positioning holes (5) are arranged in an array mode, and the supporting columns (7) of each set of positioning unit (6) are in inserting fit with the positioning holes (5).

5. The three-coordinate measuring platform with the positioning fixture of claim 2, wherein: the positioning fixture (2) can further comprise at least one pair of positioning support forks (10), and the positioning support forks (10) are in plug-in fit with the positioning holes (5).

Images