Non-coplanar multi-guide-rail error homogenization mechanism research test platform

Abstract

The invention discloses a non-coplanar multi-guide-rail error homogenization mechanism research test platform which comprises a base, a cross beam, a rolling linear guide rail pair, a sliding block, a ball screw, a servo motor, a sliding plate and the like. In the invention, the test bench is driven by the servo motor to drive the ball screw to rotate, and the ball screw drives the sliding plate, namely the workbench to move left and right on the guide rail along the guide rail, so that the processing process is realized. The device provided by the invention meets the experimental research of error homogenization, and has the innovation point that the non-coplanar multiple guide rails are symmetrically arranged up and down, so that the error homogenization mechanism test of the machine tool is met. Through the working stroke of left and right feeding of the workbench, the test bench can be used for testing geometric assembly errors on a numerical control machine tool, assembly errors of a lead screw, rigidity of a sliding block, rigidity of a bearing and the like, meets error homogenization mechanism tests, and is worthy of popularization and application.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of error homogenization of numerical control machine tools, in particular to a test platform for researching error homogenization mechanism of non-coplanar multi-guide rail arranged symmetrically up and down. BACKGROUND

[0002] Manufacturing industry is the most important industry in China, and high-end numerical control equipment has been listed as one of the national key industries, and higher requirements are put forward for its machining precision. High precision, high speed and high acceleration machining has become a trend, but under high speed and high acceleration working conditions, the feeding direction of the machine tool is easy to vibrate, which will indirectly affect the experiment of the machine tool. At the same time, the feeding system as a key component of the machine tool plays an important role in the machining of parts. The feeding system is assembled by rolling linear guide rail pair and slide plate in a certain order. During the assembly process, there will be a certain manufacturing error between the guide rail slide and the slide plate, so there will be an error transmission effect in the machining process, mainly the error transmission process of guide rail-slide-slide plate. This error transmission is not strictly according to the ratio of 1:1, but there is a homogenization coefficient less than 1, which is called error homogenization effect in the working process of the machine tool. The non-coplanar multi-guide rail error homogenization mechanism research test platform is to make the cutting work faster, more accurate and more efficient in the future. It lays a solid theoretical support for how to improve the geometric error of the guide rail and improve the assembly error of the machine tool. SUMMARY

[0003] The purpose of the present application is to provide a non-coplanar multi-guide rail error homogenization mechanism research test platform. It is easy to operate, stable to move, and can effectively improve the processing yield.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A non-coplanar multi-guide rail error homogenization mechanism research test platform, comprising a bed component, a slide rail component and a driving component; wherein the slide rail component adopts a non-coplanar symmetrically arranged structure.

[0006] The bed component comprises a base and a cross beam.

[0007] The slide rail component comprises a rolling linear guide rail pair and a slide plate.

[0008] The driving component comprises a ball screw mechanism and a servo motor.

[0009] Preferably, the cross beam is placed on the base and is the main appearance structure of the test platform.

[0010] Preferably, the slide rail component comprises a rolling linear guide rail pair and a slide plate. The upper and lower working surfaces of the linear guide rail have a total of 4, and each sliding guide rail carries 3 sliders and 3 sets of gaskets, and the slide plate is above the gaskets; the linear guide rail is fixed on the cross beam, and the slider is above the guide rail. The slide plate is above the gasket, and the slider moves to drive the slide plate to move.

[0011] Preferably, the driving component comprises a servo motor and a ball screw mechanism; in this part of the mechanism, the test bench drives the ball screw to rotate under the drive of the servo motor, and the ball screw drives the slide plate to move along the guide rail. The design has a motor device installed on the cross beam, and the motor drives the slide plate to move through the ball screw mechanism, thereby improving the measurement efficiency of the test bench and the subsequent error analysis efficiency.

[0012] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0013] 1. For this test bench, a non-coplanar multi-guide rail symmetrical arrangement structure is adopted, which can be used for geometric assembly error, screw assembly error, slider stiffness, bearing stiffness test, etc. on high-grade numerical control machine tools. The non-coplanar symmetrical arrangement structure of the present patent can study the error equalization mechanism of precision machine tools, and is worth popularizing and applying.

[0014] 2. The bed body of the present patent is one of the important components. For the design of the bed body, a rib plate type design is adopted, which can significantly improve the stiffness of the workpiece while meeting the strength requirements.

[0015] 3. The base of the present patent is an important component, and the base adopts a "U" shape, and after being hollowed out, a "well" shaped rib plate arrangement is adopted, which can stabilize the workbench. The service life and working efficiency of the workbench can be greatly improved.

[0016] 4. For the design of the shape, a cuboid structure is selected, which is more solid and can provide better stability, thereby reducing vibration and error during testing. At the same time, it has high rigidity and can withstand higher cutting force and cutting torque, and is suitable for precision cutting and heavy load machining, and has a wide machining range. Due to its good stability and rigidity, it is usually suitable for machining large-sized parts and long strip materials. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present application.

[0018] Figure 2 is a three-dimensional structure schematic diagram of the slide rail component of the present application.

[0019] Figure 3It is a three-dimensional structure schematic diagram of the slide plate.

[0020] Figure 4 It is a three-dimensional structure schematic diagram of the driving component of the present application.

[0021] In the figure: 1 is the base, 2 is the crossbeam, 3 is the rolling linear guide vice, 4 is the servo motor, 5 is the ball screw, 6 is the slide plate, 7 is the sliding block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0023] As shown in Figure 1 , a non-coplanar multi-guide rail error equalization mechanism research test platform, comprising a base 1, a crossbeam 2, a rolling linear guide vice 3, a servo motor 4, a ball screw 5, a slide plate 6, and a sliding block 7. The slide rail component comprises a base 1 and a crossbeam 2; the crossbeam is placed on the base to ensure the safety and stability of the machine tool during machining.

[0024] As shown in Figure 2 , the slide rail component adopts a structure of non-coplanar multi-guide rail upper and lower symmetrical arrangement, which includes a rolling linear guide vice 3, a slide plate 6, and a sliding block 7. The guide rail sliding block and the slide plate together constitute the feeding system of the test bench, ensuring the normal operation of the machine tool during machining.

[0025] As shown in Figure 3 , the slide plate structure, i.e. the workbench, realizes the machining process as the workbench of the test bench.

[0026] As shown in Figure 4 , the driving component includes a servo motor 4 and a ball screw mechanism 5, providing a power source for the test bench.

[0027] Further, the test bench is mainly used for non-coplanar multi-guide rail feeding system error equalization mechanism research, and can meet the test research of various factors affecting the error equalization coefficient. The base 1 and the crossbeam 2 are selected to have a cuboid structure, which is not only solid but also can provide better stability, thereby reducing vibration and error during the test process. The base 1 adopts a "U" shape, and the base 1 and the crossbeam 2 are both internally hollowed out and arranged in a "well" shape, which is beneficial to improve the service life and working efficiency of the workbench.

[0028] In summary, the test platform can realize the non-coplanar multi-guide rail error homogenization mechanism research. When the non-coplanar multi-guide rail error homogenization mechanism research test platform operates, the slide plate is driven by the ball screw to make reciprocating motion on the linear guide rail. The working principle is that the servo motor drives the ball screw to move through the coupling, and the ball screw drives the slide plate to make reciprocating motion along the guide rail direction, thereby realizing the working process.

[0029] The present application is not limited to the above-described embodiments. The above description of specific embodiments is intended to describe and illustrate the technical solutions of the present application, and the specific embodiments described above are merely illustrative and not restrictive. Without departing from the purpose of the present application and the scope protected by the claims, those skilled in the art can make many forms of specific changes under the inspiration of the present application, which are all within the protection scope of the present application.

Claims

1. A non-coplanar multi-guide rail error homogenization mechanism research test platform, which is mainly applied to high-end numerical control machine tools. The test platform mainly adopts a structure of symmetrically arranging non-coplanar multi-guide rails up and down, and the symmetric arrangement of non-coplanar is the main innovation. The test platform is characterized in that: Including the bed body part, slide rail part, drive part. The bed body part includes base and crossbeam. The slide rail part includes rolling linear guide rail pair and slide plate. The rolling linear guide rail pair with slider is installed on both sides of the upper and lower surfaces of the crossbeam, and the slider is connected with the slide plate. The drive part includes servo motor and ball screw mechanism. The crossbeam is installed with ball screw nut pair composed of fixed end and bearing end, and the ball screw is connected through the fixed end and bearing end, and the servo motor is installed on the fixed end of the ball screw nut pair to drive the ball screw to rotate.

2. The non-coplanar multi-guide rail error homogenization mechanism research test platform according to claim 1, characterized in that: The crossbeam is placed on the base to support the workbench.

3. The non-coplanar multi-guide rail error homogenization mechanism research test platform according to claim 1, characterized in that: The slide rail part includes rolling linear guide rail pair and slide plate. There are 4 linear guide rails in total, each sliding guide rail carries 3 sliders and 3 sets of gaskets, and the slide plate is above the gaskets; the linear guide rail is fixed on the crossbeam, and the slider and the guide rail are matched; the adjusting gasket is above the slider. The slide plate is above the adjusting gasket, and when the slider moves along the guide rail, it can drive the slide plate to realize the marching process.

4. The non-coplanar multi-guide rail error equalization mechanism research test platform according to claim 1, characterized in that: The drive part includes servo motor and ball screw mechanism. In this part of the mechanism, the test bench drives the ball screw to rotate under the drive of the servo motor, and the ball screw drives the slide plate to move along the guide rail. The design installs motor device on the crossbeam, and the motor drives the slide plate to move through the ball screw mechanism, thereby improving the measurement efficiency of the test bench and the subsequent error analysis efficiency.

5. This test bench is mainly used for non-coplanar multi-guide rail feeding system error equalization mechanism research, which can meet the test research of the influence of various factors on error equalization coefficient.

Images