A workpiece is comprehensively tested by a five-axis linkage machine tool

Abstract

The utility model provides a five -axis linkage machine tool comprehensive test work piece, include: test piece body, test piece body is provided with five -axis linkage processing detection department, continuous transformation detection department, A axis reverse motion detection department, C axis linkage detection department and A axis plane linkage detection department among at least two, five -axis linkage processing detection department surrounds the arrangement of predetermine axis, continuous transformation detection department is S type curved surface, A axis reverse motion detection department includes the convex curved surface department of convex of test piece body and the recessed curved surface department of recessed in test piece body, C axis linkage detection department forms in the side of test piece body, A axis plane linkage detection department includes two plane detection department on test piece body. Relative to prior art, the utility model discloses five -axis linkage machine tool comprehensive test work piece can be clamped and can realize to machine tool carries out multiple performance test, realizes the overall evaluation of performance, satisfies the demand of rapid detection, and is favorable to the substantial shortening period, satisfies the demand of rapid detection.

Description

Technical Field

[0001] This utility model relates to the field of machine tool testing technology, specifically to a five-axis linkage machine tool for comprehensive testing of workpieces. Background Technology

[0002] Five-axis CNC machine tools are characterized by high efficiency and high precision, allowing for the machining of five sides of a workpiece in a single setup. When equipped with a high-end five-axis linkage CNC system, they can also perform high-precision machining of complex spatial surfaces, making them suitable for processing modern molds such as automotive parts and aircraft structural components. Five-axis CNC machine tools have two types of rotary axes: a table rotary axis, where the table mounted on the machine bed can rotate around the X-axis (A-axis) or the Y-axis (B-axis), with either A or B being selectable. The typical working range of A / B axes is +30 degrees to -120 degrees. A rotary table is also located in the center of the table, rotating around the Z-axis (C-axis), which rotates 360 degrees. Through the combination of the A and C axes, all five sides of the workpiece fixed on the table, except for the bottom surface, can be machined by the vertical spindle. The minimum indexing value of the A and C axes is typically 0.001 degrees, allowing the workpiece to be subdivided into arbitrary angles to machine inclined surfaces, inclined holes, etc. The A-axis and C-axis can be linked with the XYZ three linear axes.

[0003] Currently, the testing standards for five-axis CNC machine tools involve testing and verifying the accuracy of the machine tool using multiple different test pieces. Since the test items corresponding to different test pieces are relatively fixed, and the accuracy of various parts of the machine tool cannot be reflected from a single test piece, it is necessary to frequently change different test pieces and adjust parameters according to different test pieces. This results in significant operational errors and a long testing time, making it impossible to achieve overall machine tool testing in a short period of time. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a five-axis linkage machine tool for comprehensive testing of workpieces.

[0005] One embodiment of this utility model provides a comprehensive test workpiece for a five-axis linkage machine tool, including: a test workpiece body; The test piece body is provided with at least two of the following: a five-axis linkage machining detection unit, a continuous transformation detection unit, an A-axis reverse motion detection unit, a C-axis linkage detection unit, and an A-axis planar linkage detection unit; The five-axis linkage machining and detection unit is arranged around a preset axis and gradually approaches the preset axis in an upward direction. The preset axis is inclined relative to the horizontal plane. The continuous transformation detection unit is an S-shaped curved surface; The A-axis reverse motion detection unit includes a protruding curved surface that protrudes from the test piece body and a concave curved surface that is recessed into the test piece body. The C-axis linkage detection unit is formed on the side of the test piece body, and the C-axis linkage detection unit is a wavy curved surface; The A-axis planar linkage detection unit includes two planar detection units formed on the test piece body. The two planar detection units extend in a horizontal direction that is perpendicular to each other, and parts of the two planar detection units overlap each other.

[0006] In some optional embodiments, the test piece body is provided with the five-axis linkage machining detection unit, the continuous transformation detection unit, the A-axis reverse motion detection unit, the C-axis linkage detection unit, and the A-axis planar linkage detection unit.

[0007] In some optional embodiments, the test piece body is provided with a protruding frustum portion, the preset axis is arranged coaxially with the central axis of the frustum portion, and the side of the frustum portion forms the five-axis linkage machining and detection unit.

[0008] In some alternative embodiments, a first groove is provided on the top of the frustum portion, and the continuous transformation detection portion is formed on the inner sidewall of the first groove.

[0009] In some alternative embodiments, the planar detection unit is provided on the top of the frustum portion.

[0010] In some optional embodiments, the test piece body is provided with a protruding frustum and a test boss, the test boss being arranged around the frustum. The preset axis is arranged coaxially with the central axis of the frustum, and the five-axis linkage machining and detection unit is formed on the side of the frustum. The C-axis linkage detection unit is formed on the side of the test boss away from the frustum.

[0011] In some alternative embodiments, the A-axis reverse motion detection part is formed on the test boss.

[0012] In some alternative implementations, the test piece body is a metal part.

[0013] Compared with existing technologies, the five-axis linkage machine tool of this invention can perform multiple performance tests on the machine tool in one clamping, achieve comprehensive performance evaluation, meet the needs of rapid testing, and significantly shorten the cycle time.

[0014] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a five-axis linkage machine tool for comprehensive testing of a workpiece according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a workpiece being tested using a five-axis linkage machine tool according to an embodiment of the present invention during five-axis linkage machining and inspection. Figure 3 This is a schematic diagram of the structure of a five-axis linkage machine tool for comprehensive testing of a workpiece during continuous transformation detection, according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of a five-axis linkage machine tool for comprehensive testing of a workpiece when performing A-axis reverse motion detection through a convex curved surface, according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of a five-axis linkage machine tool for comprehensive testing of a workpiece when performing A-axis reverse motion detection through a concave curved surface, according to an embodiment of the present invention. Figure 6 This is a schematic diagram of the structure of a workpiece being tested using a five-axis linkage machine tool according to an embodiment of the present invention during C-axis linkage testing. Figure 7 This is a schematic diagram of the structure of a five-axis linkage machine tool for comprehensive testing of a workpiece during A-axis planar linkage detection, according to an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 10. Test piece body; 11. Frustum; 12. First groove; 13. Test boss; 14. Substrate; 141. Clamping part; 20. Five-axis linkage machining detection part; 30. Continuous change detection part; 40. A-axis reverse motion detection part; 41. Protruding curved surface; 42. Recessed curved surface; 50. C-axis linkage detection part; 60. A-axis planar linkage detection part; 61. Planar detection part. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] Please see Figure 1 This utility model provides a five-axis linkage machine tool for comprehensive testing of workpieces, including: test piece body 10.

[0022] The test piece body 10 is provided with at least two of the following: a five-axis linkage machining detection unit 20, a continuous transformation detection unit 30, an A-axis reverse motion detection unit 40, a C-axis linkage detection unit 50, and an A-axis planar linkage detection unit 60.

[0023] The five-axis linkage machining and inspection unit 20 is arranged around the preset axis and gradually approaches the preset axis in the upward direction, while the preset axis is inclined relative to the horizontal plane.

[0024] The continuous transformation detection unit 30 is an S-shaped curved surface.

[0025] The A-axis reverse motion detection unit 40 includes a protruding curved surface 41 protruding from the test piece body 10 and a recessed curved surface 42 recessed within the test piece body 10.

[0026] The C-axis linkage detection unit 50 is formed on the side of the test piece body 10, and the C-axis linkage detection unit 50 is a wavy curved surface.

[0027] The A-axis planar linkage detection unit 60 includes two planar detection units 61 formed on the test piece body 10. The two planar detection units 61 extend in a horizontal direction that is perpendicular to each other, and parts of the two planar detection units 61 overlap each other.

[0028] The working principle of a five-axis linkage machine tool for comprehensive workpiece testing according to an embodiment of this utility model is explained below: Please see Figure 2 The five-axis linkage machining inspection unit 20 is used to detect the roundness error during the overall operation of the five-axis linkage machine tool and to confirm the linkage accuracy under the maximum rotary table stroke. During the test, the tool moves along the five-axis linkage machining inspection unit 20. During the tool movement, the tool will move in the five-axis direction. All five axes of the five-axis linkage machine tool need to be linked and adjusted. The overall five-axis linkage machining performance of the machine tool is verified by observing the tool marks on the five-axis linkage machining inspection unit 20.

[0029] Please see Figure 3 The continuous change detection unit 30 is used to detect the running accuracy of the five-axis linkage machine tool during the continuous change of tool axis. During the test, the tool moves along the continuous change detection unit 30. By judging whether there are serious tool path reversal marks on the continuous change detection unit 30, the coordination performance of the rotary table and the XYZ three axes of the five-axis linkage machine tool is verified.

[0030] Please see Figure 4 and Figure 5 The A-axis reverse motion detection unit 40 is used to detect the A-axis reverse motion performance. By coordinating the A-axis reverse motion with the XYZ three-axis interpolation action, the tool moves along the convex curved surface 41 and the concave curved surface 42. The reversal marks of the tool on the A-axis reverse motion detection unit 40 when the A-axis reverses direction are observed, so as to evaluate the stability and accuracy of the A-axis reverse motion.

[0031] Please see Figure 6 The C-axis linkage detection unit 50 is used to test the linkage effect between the C-axis and the XYZ axes. During the test, the tool moves along the C-axis linkage detection unit 50 through the linkage interpolation action of the C-axis and the XYZ axes. The wave-shaped design requires the tool to change direction continuously. The reverse movement of the C-axis is detected through multiple reversal positions to check whether there is any abnormality.

[0032] Please see Figure 7The A-axis plane linkage detection unit 60 is used to test the linkage matching of the rotary table of a five-axis linkage machine tool in the plane. During the test, the C-axis is fixed at a first angle, and the tool guide axis moves towards one of the plane detection units 61 in a way that changes from tilt to vertical relative to the horizontal plane. Then, after the tool moves to the overlapping area of ​​the two plane detection units 61, the C-axis is fixed at a second angle, and the tool guide axis moves along the other plane detection unit 61 again in a way that changes from vertical to tilt relative to the horizontal plane. The accuracy of the five-axis center calibration, the perpendicularity of the C-axis axis to the XY plane, and the zero position accuracy of the A-axis are detected by the tool marks in the overlapping area of ​​the two plane detection units 61. At the same time, it is determined whether there is a problem of plane non-smoothness caused by the rotary table.

[0033] It should be noted that the XY axes of a five-axis CNC machine tool are parallel to the horizontal plane, the Z axis is perpendicular to the horizontal plane, the A axis is the axis that rotates around the X or Y axis, and the C axis is the axis that rotates around the Z axis.

[0034] Multiple tests can be performed on a single test workpiece, thus enabling a comprehensive evaluation of the performance of a five-axis CNC machine tool, significantly shortening the cycle time and meeting the needs of rapid testing.

[0035] In some optional embodiments, the test piece body 10 is provided with a five-axis linkage machining detection unit 20, a continuous transformation detection unit 30, an A-axis reverse motion detection unit 40, a C-axis linkage detection unit 50, and an A-axis planar linkage detection unit 60, integrating the testing of multiple test items onto the same test piece. Therefore, the test piece only needs to be clamped once, eliminating the need for repeated clamping operations, reducing errors, lowering operational complexity, and improving test accuracy.

[0036] When a five-axis linkage machining and inspection unit 20 is provided, in order to facilitate the formation of the five-axis linkage machining and inspection unit 20, in some optional embodiments, a protruding frustum portion 11 is provided on the test piece body 10, the preset axis is arranged coaxially with the central axis of the frustum portion 11, and the five-axis linkage machining and inspection unit 20 is formed on the side of the frustum portion 11.

[0037] When a continuous change detection unit 30 is provided, in order to facilitate the formation of the continuous change detection unit 30, in some optional embodiments, a first groove 12 is provided on the top of the frustum portion 11, and the continuous change detection unit 30 is formed on the inner sidewall of the first groove 12. The tool can be inserted into the first groove 12 and then move along the continuous change detection unit 30.

[0038] When a plane detection unit 61 is provided, in order to facilitate the formation of the plane detection unit 61, in some optional embodiments, the top of the frustum portion 11 is provided with the plane detection unit 61.

[0039] When a C-axis linkage detection unit 50 and a five-axis linkage machining detection unit 20 are provided, in order to facilitate the formation of the C-axis linkage detection unit 50 and the five-axis linkage machining detection unit 20, in some optional embodiments, a protruding test boss 13 is provided on the test piece body 10, and the test boss 13 is arranged around the frustum portion 11; the C-axis linkage detection unit 50 is formed on the side of the test boss 13 away from the frustum portion 11.

[0040] When the A-axis reverse motion detection unit 40 is provided, in order to facilitate the formation of the A-axis reverse motion detection unit 40, in some optional embodiments, the A-axis reverse motion detection unit 40 is formed on the test boss 13.

[0041] In some alternative embodiments, the test piece body 10 is a metal part, which facilitates the processing of the test piece body 10 and ensures the strength of the test piece body 10.

[0042] For ease of clamping, in this embodiment, the test piece body 10 includes a substrate 14, a frustum 11, and a test boss 13. The frustum 14 and the test boss 13 are disposed on the top of the substrate 14, allowing the substrate 14 to be clamped during testing. The top of the substrate 14 is also provided with a clamping part 141 for clamping by the clamping structure. The clamping part 141 and the test boss 13 are arranged together around the frustum 11.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A five-axis linkage machine tool for comprehensive workpiece testing, characterized in that, include: Test piece body; The test piece body is provided with at least two of the following: a five-axis linkage machining detection unit, a continuous transformation detection unit, an A-axis reverse motion detection unit, a C-axis linkage detection unit, and an A-axis planar linkage detection unit; The five-axis linkage machining and detection unit is arranged around a preset axis and gradually approaches the preset axis in an upward direction. The preset axis is inclined relative to the horizontal plane. The continuous transformation detection unit is an S-shaped curved surface; The A-axis reverse motion detection unit includes a protruding curved surface that protrudes from the test piece body and a concave curved surface that is recessed into the test piece body. The C-axis linkage detection unit is formed on the side of the test piece body, and the C-axis linkage detection unit is a wavy curved surface; The A-axis planar linkage detection unit includes two planar detection units formed on the test piece body. The two planar detection units extend in a horizontal direction that is perpendicular to each other, and parts of the two planar detection units overlap each other.

2. The five-axis linkage machine tool for comprehensive workpiece testing according to claim 1, characterized in that: The test piece body is provided with the five-axis linkage machining detection unit, the continuous transformation detection unit, the A-axis reverse motion detection unit, the C-axis linkage detection unit and the A-axis planar linkage detection unit.

3. The five-axis linkage machine tool for comprehensive workpiece testing according to claim 1, characterized in that: The test piece body is provided with a protruding frustum, the preset axis is arranged coaxially with the central axis of the frustum, and the side of the frustum forms the five-axis linkage machining and detection part.

4. The five-axis linkage machine tool for comprehensive workpiece testing according to claim 3, characterized in that: The top of the frustum portion is provided with a first groove, and the inner sidewall of the first groove is formed with the continuous transformation detection portion.

5. The five-axis linkage machine tool for comprehensive workpiece testing according to claim 3, characterized in that: The top of the frustum is provided with the plane detection part.

6. The five-axis linkage machine tool for comprehensive workpiece testing according to claim 1, characterized in that: The test piece body is provided with a protruding frustum and a test boss, and the test boss is arranged around the frustum. The preset axis is arranged coaxially with the central axis of the frustum, and the five-axis linkage machining and detection unit is formed on the side of the frustum. The C-axis linkage detection unit is formed on the side of the test boss away from the frustum.

7. The five-axis linkage machine tool for comprehensive workpiece testing according to claim 6, characterized in that: The A-axis reverse motion detection part is formed on the test boss.

8. The five-axis linkage machine tool for comprehensive workpiece testing according to claim 6, characterized in that: The test piece body includes a substrate, the frustum portion, and the test boss, with the frustum portion and the test boss disposed on the top of the substrate.

9. A five-axis linkage machine tool for comprehensive workpiece testing according to claim 8, characterized in that: The top of the substrate is also provided with a clamping part, which and the test boss are arranged together around the frustum portion.

10. A five-axis linkage machine tool for comprehensive workpiece testing according to any one of claims 1 to 9, characterized in that: The test piece body is a metal part.

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