CN213765106U

CN213765106U - Machining center rotation center test piece

Info

Publication number: CN213765106U
Application number: CN202021935708.3U
Authority: CN
Inventors: 祝伟生; 郑胜华; 何俊; 林中华
Original assignee: Zhejiang Xiandao Precision Machinery Co ltd
Current assignee: Zhejiang Xiandao Precision Machinery Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-07-23
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a machining center rotation center test piece, be equipped with all 0 reference planes parallel with the rotation central axis on the test piece body, 90 reference planes and 270 reference planes, 0 reference planes include 0 plane, all with 0 plane vertically 0 first side and 0 second side, 90 reference planes include mutually perpendicular 90 side and 90 bottom surfaces, 90 side is parallel with 0 plane, 270 reference planes include mutually perpendicular 270 side and 270 bottom surfaces, 270 side is parallel with 0 plane, 90 side and 270 plane are parallel, 90 side and 270 side equal to 0 planar distance, 90 bottom surface equals to 0 bottom surface to 0 first side's distance and 270 bottom surface to 0 second side's distance. The utility model realizes the problem that the rotation center can not be accurately measured, and improves the processing precision of parts; the application range is wide; simple structure, short processing and correcting time, high obtained precision and low cost.

Description

Machining center rotation center test piece

Technical Field

The utility model belongs to the technical field of the frock technique and specifically relates to a machining center rotation center test piece is related to.

Background

When a part is machined by a horizontal machining center, the workpiece coordinates often cannot coincide with the rotation center of the B axis of the machine tool, and therefore a plurality of coordinates need to be measured. To simplify the operation, a macroprogram is generally used to calculate the coordinates of the rotated workpiece. But the mechanical value of the B-axis centre of revolution must be found before the coordinate system is calculated using a macroprogram. After the rotation center of the B axis is manually searched, certain human errors exist, and the current error value cannot be accurately known. When the coaxiality of two ends needs to be ensured when parts are bored by the two ends, the errors cannot meet the requirement of patterns, and the same problem exists for an A shaft of a vertical machining center. The calibration method using the machine tool is complicated.

For example, CN108994664A, a publication of "a five-axis machine RTCP accuracy detection and correction method" disclosed in chinese patent literature, discloses a method for adjusting five-axis accuracy by adjusting the X-axis coordinate of a first rotation center, adjusting the Y-axis coordinate of the first rotation center, adjusting the Z-axis coordinate of the first rotation center, and adjusting the Y-axis coordinate of a second rotation center by a cutting method. The method has the disadvantages that two milling cutters need to be replaced, the gap needs to be tested, and the steps are complicated.

Disclosure of Invention

The utility model relates to an it is great to overcome the manual rotation center error of looking for of prior art, and the loaded down with trivial details problem of lathe correction step provides a machining center rotation center test piece, accurate correction rotation center, and the precision is high, and is with low costs.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a machining center rotation center test piece, includes the test piece body, be equipped with all 0 reference surface, 90 reference surface and 270 reference surface parallel with rotation central axis on the test piece body, 0 reference surface includes 0 plane, all 0 first side and 0 second side perpendicular with 0 plane, 90 reference surface includes 90 side and 90 bottom surface mutually perpendicular, 90 side is parallel with 0 plane, 270 reference surface includes 270 side and 270 bottom surface mutually perpendicular, 270 side is parallel with 0 plane, 90 side and 270 side are equal to 0 plane distance, 90 bottom surface is equal to 0 bottom surface to 0 first side distance and 270 bottom surface to 0 second side distance.

The utility model is characterized in that the reference surface of 0 degree, 90 degrees and 270 degrees three angles is respectively arranged on the test piece body, the test piece is fixed on the workbench, the rotation angle of the workbench is adjusted, 0 degree plane is taken as the 0 degree plane of the rotation axis, 0 degree first side and 0 degree second side are taken as the 90 degree plane and 270 degree plane of the rotation axis, the 90 degree plane rotation back coordinate system is calculated by utilizing a macro program, the milling cutter moves along the parallel direction of the 0 degree plane of the 90 degree plane rotation back coordinate system obtained by calculation, if a gap exists between the moving direction and the 90 degree side, the workbench is moved along the direction perpendicular to the moving direction, and the 90 degree side of the test piece is attached to the milling cutter; then, the milling cutter is moved along the vertical direction of the 0-degree surface of the coordinate system after the 90-degree surface is rotated, if a gap exists between the moving direction and the 90-degree bottom surface, the workbench is moved along the direction vertical to the moving direction, and the 90-degree bottom surface of the test piece is attached to the milling cutter; and calculating a 270-degree plane rotation coordinate system by using a macroprogram, and correcting the 270-degree bottom surface and the 270-degree side surface in the same manner. The test piece can be used for quickly correcting the rotation centers of the B shaft of the horizontal machining center and the A shaft of the vertical machining center.

Preferably, the 0 ° first side and the 0 ° second side are connected by a 0 ° plane.

The three surfaces of the 0-degree reference surface can be rapidly processed conveniently.

Preferably, the 90 ° bottom face and the 0 ° first side face are connected by a 90 ° side face.

The test piece is convenient to directly process the 90-degree side surface and the 90-degree bottom surface after the 0-degree first side surface of the test piece is processed.

Preferably, the 270 ° bottom surface and the 0 ° second side surface are connected by a 270 ° side surface.

The test piece is convenient to directly process the 270-degree side surface and the 270-degree bottom surface after the 0-degree second side surface of the test piece is processed.

Preferably, the 0 ° reference plane, the 90 ° reference plane, and the 270 ° reference plane each penetrate the test piece body in the rotational center axis direction.

This test piece circumference is surrounded by each reference surface promptly, guarantees that the test piece side all is parallel with the rotation axis direction, for example on horizontal machining center, and the test piece side is vertical face, when the mobile workbench rectifies, no matter which point laminating of milling cutter and reference surface, can both realize accurate correction, requires lowly to milling cutter length.

Preferably, the test piece body is provided with a fixing screw hole.

And a bolt is arranged in the fixing screw hole and is used for being fixed with a clamp, and the fixing screw hole is fixed on the workbench through the clamp.

Preferably, the test piece body is provided with a positioning pin hole.

And a positioning pin is arranged in the positioning pin hole and is positioned before being fixed with the clamp.

Therefore, the utility model discloses following beneficial effect has: (1) the test piece realizes the problem that the rotation center cannot be accurately measured, and improves the processing precision of parts; (2) the method is suitable for correcting the rotation centers of the B shaft of the horizontal machining center and the A shaft of the vertical machining center, and has wide application range; (3) the test piece has the advantages of simple structure, short processing and correcting time, high obtained precision and low cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the test piece body, 11, 0 level, 12, 0 first side, 13, 0 second side, 14, 90 side, 15, 90 bottom, 16, 270 side, 17, 270 bottom, 2, fixed screw hole, 3, location pinhole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1, a machining center rotation center test piece comprises a regular prism-shaped test piece body 1 with a convex cross section, wherein the test piece body 1 is provided with a 0-degree reference surface, a 90-degree reference surface and a 270-degree reference surface which are all parallel to a rotation central axis, and the 0-degree reference surface, the 90-degree reference surface and the 270-degree reference surface are all side surfaces of the test piece body 1.

The 0 ° datum plane comprises a 0 ° plane 11, a 0 ° first side 12 and a 0 ° second side 13 both perpendicular to the 0 ° plane 11, the 0 ° plane 11 is the plane where the bottom edge of the "convex" shape is located, the 0 ° first side 12 and the 0 ° second side 13 are respectively perpendicularly connected to the right side and the left side of the 0 ° plane 11, and the 0 ° first side 12 and the 0 ° second side 13 both extend in the direction of the top edge of the "convex" shape.

The 90 deg. reference plane includes perpendicular 90 deg. side 14 and 90 deg. bottom 15, the 90 deg. side 14 being parallel to the 0 deg. plane 11, the 90 deg. side 14 being perpendicularly attached to the top of the 0 deg. first side 12 and extending to the left, the 90 deg. bottom 15 being perpendicularly attached to the left end of the 90 deg. side and extending to the top edge of the "dogbone".

The 270 ° reference plane is bilaterally symmetric to the 90 ° reference plane, the 270 ° reference plane includes a 270 ° side surface 16 and a 270 ° bottom surface 17 which are perpendicular to each other, the 270 ° side surface 16 is parallel to the 0 ° plane 11, the 270 ° side surface 16 is symmetric to the 90 ° side surface 14, and the 270 ° bottom surface 17 is bilaterally symmetric to the 90 ° bottom surface 15.

The distance from 90 ° side 14 and 270 ° side 16 to 0 ° plane 11 is equal, and the distance from 90 ° bottom 15 to 0 ° first side 12 is equal to the distance from 270 ° bottom 17 to 0 ° second side 13.

The testing piece body 1 is provided with fixing screw holes 2, the fixing screw holes 2 extend along the direction of a rotating shaft, and the number of the fixing screw holes 2 is 3, and the fixing screw holes are arranged along the central line of a shape like a Chinese character 'tu'. The test piece body 1 is provided with two positioning pin holes 3, and the positioning pin holes 3 are arranged between two adjacent fixing screw holes 2.

When correcting the B-axis rotation center of the horizontal machining center, positioning a test piece through a positioning pin, fixing the test piece on a clamp through a bolt, fixing the clamp on a workbench, adjusting the rotation angle of the workbench, taking a 0-degree plane as a 0-degree plane of a rotation axis, taking a 0-degree first side surface and a 0-degree second side surface as a 90-degree plane and a 270-degree plane of the rotation axis, calculating a 90-degree plane rotation back coordinate system by utilizing a macro program, enabling a milling cutter to move along the parallel direction of the 0-degree plane of the 90-degree plane rotation back coordinate system obtained by calculation, and if a gap exists between the moving direction and the 90-degree side surface, moving the workbench along the direction perpendicular to the moving direction, and enabling the 90-degree side surface of the test piece to be attached to the milling cutter; then, the milling cutter is moved along the vertical direction of the 0-degree surface of the coordinate system after the 90-degree surface is rotated, if a gap exists between the moving direction and the 90-degree bottom surface, the workbench is moved along the direction vertical to the moving direction, and the 90-degree bottom surface of the test piece is attached to the milling cutter; calculating a 270-degree surface rotation coordinate system by using a macro program, enabling the milling cutter to move along the parallel direction of the 0-degree surface of the 270-degree surface rotation coordinate system obtained by calculation, and if a gap exists between the moving direction and the 270-degree side surface, moving the workbench along the direction perpendicular to the moving direction, so that the 270-degree side surface of the test piece is attached to the milling cutter; and then, the milling cutter is moved along the vertical direction of the 0-degree surface of the coordinate system after the 270-degree surface is rotated, and if a gap exists between the moving direction and the 270-degree bottom surface, the workbench is moved along the direction vertical to the moving direction, so that the 270-degree bottom surface of the test piece is attached to the milling cutter.

Claims

1. A machining center rotation center test piece comprises a test piece body (1) and is characterized in that a 0-degree reference surface, a 90-degree reference surface and a 270-degree reference surface which are parallel to a rotation central axis are arranged on the test piece body (1), the 0-degree reference surface comprises a 0-degree plane (11), a 0-degree first side surface (12) and a 0-degree second side surface (13) which are perpendicular to the 0-degree plane (11), the 90-degree reference surface comprises a 90-degree side surface (14) and a 90-degree bottom surface (15) which are perpendicular to each other, the 90-degree side surface (14) is parallel to the 0-degree plane (11), the 270-degree reference surface comprises a 270-degree side surface (16) and a 270-degree bottom surface (17) which are perpendicular to each other, the 270-degree side surface (16) is parallel to the 0-degree plane (11), the distances from the 90-degree side surface (14) and the 270-degree side surface (16) to the 0-degree plane (11) are equal, and the distance from the 90-degree bottom surface (15) to the 0-degree first side surface (12) is equal to the 270-degree second side surface (13) ) Are equal.

2. A machining center rotation center test piece according to claim 1, wherein the 0 ° first side surface (12) and the 0 ° second side surface (13) are connected by a 0 ° plane (11).

3. A machining center rotation center test piece according to claim 1, wherein the 90 ° bottom face (15) and the 0 ° first side face (12) are connected by a 90 ° side face (14).

4. A machining center rotation center test piece according to claim 1, wherein the 270 ° bottom surface (17) and the 0 ° second side surface (13) are connected by a 270 ° side surface (16).

5. A machining center rotation center test piece according to claim 1, 2, 3 or 4, wherein the 0 ° reference plane, the 90 ° reference plane and the 270 ° reference plane each penetrate the test piece body (1) in the rotation center axis direction.

6. A machining center rotation center test piece according to claim 1, 2, 3 or 4, characterized in that the test piece body (1) is provided with a fixing screw hole (2).

7. The test piece for the rotation center of a machining center according to claim 1, 2, 3 or 4, wherein the test piece body (1) is provided with a positioning pin hole (3).