Testing tool and method for inspecting hard alloy processing machine tool

Abstract

The invention relates to a test tool and method for inspecting a hard alloy processing machine tool. The method comprises the following steps: inputting a plurality of inspection areas of the test tool and processing procedures corresponding to the inspection areas into the machine tool to be inspected; after the current inspection area and the current machining procedure are determined through the machine tool needing to be inspected, the machine tool is started to machine the current inspection area; according to the machining effect of the current inspection area, in combination with a preset machining effect and a machine tool performance inspection standard, whether the corresponding performance of the machine tool needing to be inspected is qualified or not is judged, and the performance needing to be improved is determined; and the steps are repeated until the machine tool needing to be inspected completes machining of all the inspection areas of the testing tool. The testing tool comprises a combined surface light grain fineness inspection area, a vehicle lamp curved surface processing performance inspection area, a masonry surface processing performance inspection area, a slotting capability testing area and a stamping cutting die diversity inspection area which are used for inspecting the performance of a machine tool. The invention provides a reliable scheme for evaluating the processing capacity, process optimization and quality control of the hard alloy processing machine tool.

Description

Technical Field

[0001] The present invention relates to a test tool and method for inspecting a cemented carbide processing machine tool, belonging to the field of machining inspection. Background Art

[0002] Cemented carbide is widely used in the fields of cutting tools, molds, etc. due to its extremely high hardness and wear resistance. However, its high hardness (HRC can exceed 70 degrees) and brittleness make its processing extremely difficult. Currently, it mainly relies on electro-erosion processing methods such as electric discharge machining and wire cutting, as well as grinding machine processing methods, with low processing efficiency and high cost. When machining cemented carbide by CNC, due to the lack of a unified and complete detection standard and method, it is difficult to objectively evaluate whether the machining performance of the machine tool meets the processing requirements.

[0003] Meanwhile, when machining ultra-high hardness materials, especially workpieces with a hardness exceeding HRC60 degrees, it is a difficult problem to overcome. Problems such as rapid tool wear, large cutting force, significant machining vibration, and accumulation of cutting heat seriously affect machining accuracy and surface quality. Existing technologies have neither established an effective evaluation method for key factors such as the rigidity of the machine tool, spindle torque, feed stability, and cooling efficiency, nor a standard for determining whether the machined workpiece is qualified. Summary of the Invention

[0004] The present invention provides a test tool and method for inspecting a cemented carbide processing machine tool, aiming to solve at least one of the technical problems existing in the prior art. For this purpose, the test tool and method for inspecting a cemented carbide processing machine tool proposed by the present invention provide a cemented carbide processing test piece and a supporting detection method, providing an effective basis for evaluating the processing ability of a CNC machine tool, and a reliable basis for process optimization and quality control.

[0005] One aspect of the technical solution of the present invention relates to a test method for inspecting a cemented carbide processing machine tool. The method according to the present invention includes the following steps:

[0006] S100. Input multiple inspection areas of the test tool and the processing procedures corresponding to the inspection areas into the machine tool to be inspected;

[0007] S200. After determining the current inspection area and its current processing procedure through the machine tool to be inspected, start the machine tool to process the current inspection area;

[0008] S300. According to the processing effect of the current inspection area, combined with the preset inspection standard for the processing effect and the machine tool performance, judge whether the corresponding performance of the machine tool to be inspected is qualified, and determine the performance that needs to be improved for the machine tool;

[0009] S400. Repeat steps S200 to S300 until the machine tool to be inspected completes the processing of all inspection areas of the test tool.

[0010] Furthermore, the test tool includes a combined surface finish fineness inspection area. The three-axis linkage finish machining is performed on the combined surface finish fineness inspection area by the machine tool to be inspected. According to the machining effect of the combined surface, it is determined whether the machine tool to be inspected meets the requirements for cemented carbide machining.

[0011] Furthermore, when there are messy tool marks and / or rough tool marks in the combined surface finish fineness inspection area, it is determined that the rigidity of the Z-axis and the spindle of the machine tool to be inspected is insufficient; when there are different light and dark patterns on each machining surface in the combined surface finish fineness inspection area, it is determined that the vibration damping performance of the machine tool is insufficient.

[0012] Furthermore, the test tool includes a headlight curved surface machining performance inspection area. The three-axis linkage finish machining is performed on the headlight curved surface machining performance inspection area by the machine tool to be inspected. According to the machining effect of the headlight curved surface, it is determined whether the machine tool to be inspected meets the requirements for cemented carbide machining.

[0013] Furthermore, when the reflection of the headlight curved surface is uneven, it is determined that the overall heat source performance of the machine tool is insufficient; when the reflection of the headlight curved surface is uneven, it can be judged that the vibration of the spindle of the machine tool is too large; when there are rounded corners on the headlight curved surface, it is determined that the dynamic response performance of the machine tool is insufficient.

[0014] Furthermore, the test tool includes a diamond surface machining performance inspection area. The three-axis linkage finish machining is performed on the diamond surface machining performance inspection area by the machine tool to be inspected; according to the machining effect of the inner and outer corners of the diamond surface, it is determined whether the continuous acceleration and deceleration adjustment scheme of the machine tool is reasonable.

[0015] Furthermore, the test tool includes a grooving ability test area. The full tool rough grooving is performed on the grooving ability test area by the machine tool to be inspected; to check whether the tool can effectively cut, whether the tool generates resonance, and whether there is a high-frequency harsh sound during the machining process of the machine tool under the machining state where the tool is fully stressed axially and radially.

[0016] Furthermore, the test tool includes a stamping die diversity inspection area. The die stamping is performed on the stamping die diversity inspection area by the machine tool to be inspected; according to the flatness and surface finish of the die, it is determined whether there are deficiencies in the vibration damping performance and the inter-axis linkage performance of the machine tool.

[0017] On the other hand, the technical solution of the present invention relates to a test tool for inspecting a cemented carbide machining machine tool, which is characterized by including: a combined surface finish fineness inspection area, a headlight curved surface machining performance inspection area, a diamond surface machining performance inspection area, a grooving ability test area, and a stamping die diversity inspection area for inspecting the performance of the machine tool.

[0018] Furthermore, the combined surface finish fineness inspection area includes machining surfaces formed by any two or more combinations of inclined surfaces, circular surfaces, and flat curved surfaces.

[0019] The beneficial effects of the present invention are as follows.

[0020] The test appliance and method for testing a cemented carbide processing machine tool according to an embodiment of the present invention can be used to test whether the machine tool meets the requirements for cemented carbide processing. It performs combined surface machining, headlight curved surface machining, diamond surface machining, grooving machining, stamping die machining, etc. on the test appliance made of cemented carbide material through the machine tool, and determines whether the machine tool meets the requirements of the cemented carbide processing material according to the processing results, and can determine the performance deficiencies in specific aspects of the machine tool according to different adverse effect feedbacks, so as to specifically improve the deficiencies of the machine tool.

[0021] Based on the shortcomings of the existing technology, combined with the processing difficulties of cemented carbide, and combined with the required machining characteristics of the machine tool, the present invention designs a test appliance including a combined surface light texture fineness inspection area, a headlight curved surface machining performance inspection area, a diamond surface machining performance inspection area, a grooving ability test area, and a stamping die diversity inspection area, so as to specifically test the performance of the machine tool, and quickly determine whether the machine tool meets the requirements for cemented carbide processing according to the machine tool performance inspection standards corresponding to the processing effects of the preset test appliance, and which specific aspects of the performance need to be improved. According to the processing effects of different inspection areas of the test appliance, the present invention can comprehensively evaluate the performance of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 is a flowchart of a test method for testing a cemented carbide processing machine tool according to an embodiment of the present invention.

[0024] Figure 2 is a schematic structural diagram of a test appliance according to an embodiment of the present invention.

[0025] Figure 3 is a top view schematic diagram of a test appliance according to an embodiment of the present invention.

[0026] Figure 4 is a front view schematic diagram of a test appliance according to an embodiment of the present invention.

[0027] Figure 5 is a rear view schematic diagram of a test appliance according to an embodiment of the present invention.

[0028] Description of the reference numerals:

[0029] 100, Test equipment; 110, Inspection area for the fineness of the combined surface light texture; 120, Inspection area for the machining performance of the headlight curved surface; 130, Inspection area for the machining performance of the diamond surface; 140, Grooving ability test area; 150, Inspection area for the diversity of stamping dies. Detailed implementation manners

[0030] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present invention in combination with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present invention. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0031] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right, top, bottom, etc. used in the present invention are only relative to the mutual positional relationship of the components of the present invention in the drawings.

[0032] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present specification are only for describing specific embodiments, rather than for limiting the present invention. The term "and / or" used herein includes any combination of one or more of the related listed items.

[0033] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element. It can be understood that the test equipment 100 of the present invention is made of cemented carbide material. Further, the machining hardness of the test equipment 100 of the present invention exceeds HRC60 degrees or exceeds HRC70 degrees.

[0034] See Figures 1 to 5 , the test equipment 100 for inspecting the cemented carbide machining machine tool in the technical solution of the present invention includes an inspection area 110 for the fineness of the combined surface light texture, an inspection area 120 for the machining performance of the headlight curved surface, an inspection area 130 for the machining performance of the diamond surface, a grooving ability test area 140, and an inspection area 150 for the diversity of stamping dies. Further, the inspection area 110 for the fineness of the combined surface light texture includes a machining surface formed by any two or more combinations of various machining surfaces such as inclined surfaces, circular surfaces, and flat curved surfaces.

[0035] Refer to Figures 1 to 5, the combined surface finish texture fineness inspection area 110, the headlight curved surface machining performance inspection area 120, and the diamond surface machining performance inspection area 130 are respectively parallel strip-shaped areas extending from one side of the test tool 100 to the other side. The grooving ability test area 140 is set between the strip-shaped areas and the stamping die diversity inspection area 150 and forms a depression. Such a layout enables the machining spindle of the machine tool to efficiently move back and forth in the combined surface finish texture fineness inspection area 110, the headlight curved surface machining performance inspection area 120, and the diamond surface machining performance inspection area 130 for testing, saving testing time. Moreover, considering that there are significant differences in the testing and machining methods between the three areas of the combined surface finish texture fineness inspection area 110, the headlight curved surface machining performance inspection area 120, and the diamond surface machining performance inspection area 130 and the stamping die diversity inspection area 150, they are separated by the grooving ability test area 140, so that there is no interference between these three areas and the stamping die diversity inspection area 150, reducing the mutual influence of the chips in machining, thereby improving the detection effect of the machine tool. Preferably, referring to Figure 4 and Figure 5 , the strip-shaped area composed of the combined surface finish texture fineness inspection area 110, the headlight curved surface machining performance inspection area 120, and the diamond surface machining performance inspection area 130 can form a housing transition surface to better detect the multi-axis machining linkage performance during the arc surface machining process of the cemented carbide machining machine tool.

[0036] See Figures 1 to 5 , the test method for the cemented carbide machining machine tool according to the technical solution of the present invention includes:

[0037] S100. Input multiple inspection areas of the test tool 100 and the corresponding machining processes of the inspection areas into the machine tool to be inspected;

[0038] S200. After determining the current inspection area and the current machining process through the machine tool to be inspected, start the machine tool to machine the current inspection area;

[0039] S300. According to the machining effect of the current inspection area, combined with the preset machining effect and the machine tool performance inspection standard, judge whether the corresponding performance of the machine tool to be inspected is qualified, and determine the performance that needs to be improved for the machine tool;

[0040] S400. Repeat steps S200 to S300 until the machine tool to be inspected completes the machining of all inspection areas of the test tool 100.

[0041] The present invention can be used to test whether a machine tool meets the requirements for cemented carbide processing. It performs combined surface machining, headlight curved surface machining, diamond surface machining, grooving machining, stamping die machining, etc. on a test tool 100 made of cemented carbide material through the machine tool, and judges whether the machine tool meets the requirements for cemented carbide processing materials according to the processing results. Moreover, it can determine the performance deficiencies in specific aspects of the machine tool based on different feedback of adverse effects, so as to specifically improve the deficiencies of the machine tool.

[0042] Compared with the processing of ordinary metal materials, the processing of cemented carbide has a very high technological threshold. At present, the existing machine tools, their cutting tools, processing technologies, etc. are not mature in the cemented carbide processing industry. The existing cemented carbide processing mainly includes methods such as electrical discharge, wire cutting, and grinding machines. According to the processing difficulty of cemented carbide and combining the characteristics of the machine tool required for its processing, the present invention designs a test tool 100 with multiple inspection areas to judge whether the machine tool meets the requirements for cemented carbide processing according to the actual processing effect, and to determine which aspects of the machine tool need to be improved, so as to enable CNC numerical control equipment to be used for cemented carbide processing.

[0043] Specifically, in the traditional debugging and processing of machine tools, technicians first process the raw materials according to the shape of the product. Due to the uncertainty of the processed product shape, technicians can only judge which aspect of the machine tool performance has problems based on the processing effect and their own experience. After adjusting the performance, they carry out processing verification again. If the above judgment of the technicians is incorrect, they need to find the reason again and carry out processing verification again. The verification process is repeated and cumbersome, and it is highly dependent on the technical level of the technicians, and it is difficult to control the length of the debugging cycle. In the test method of the present application, the processing areas of the test tool 100 are designed in advance, and the corresponding areas are processed by the machine tool. Since the adverse effects caused by the processing and their corresponding machine tool performances are known in advance. For example, if overshoot of the inner corner occurs during diamond surface machining, it is because the machine tool fails to control the early micro-deceleration at the corner properly. Thus, after the processing of the test tool 100 is completed, technicians can determine which specific aspects of the machine tool need to be adjusted, eliminating the process of manual judgment and processing verification, providing an effective basis for evaluating the processing ability of CNC machine tools, and providing a reliable basis for process optimization and quality control.

[0044] Furthermore, in view of the disadvantages of the prior art, the processing difficulties of cemented carbide, and the machining characteristics required by the machine tool, the present invention designs a test tool 100 including a combined surface finish fineness inspection area 110, a headlight curved surface machining performance inspection area 120, a diamond surface machining performance inspection area, a grooving ability test area 140, and a stamping die diversity inspection area 150, so as to specifically inspect the performance of the machine tool, and quickly determine whether the machine tool meets the cemented carbide processing requirements and which specific performance needs to be improved according to the machine tool performance inspection standards corresponding to the processing effects of the preset test tool 100. According to the processing effects of different inspection areas of the test tool 100, the present invention can comprehensively evaluate the performance of the machine tool.

[0045] In some embodiments, the combined surface finish fineness inspection area 110 is used for inspecting the fineness of the surface finish generated by the arbitrary combination machining of various machining surfaces such as inclined surfaces, circular surfaces, and flat curved surfaces. Specifically, the present invention first performs three-axis parallel finish machining of an arbitrary combined surface on the combined surface finish fineness inspection area 110 of the test tool 100 by the machine tool to be inspected, so as to inspect whether the tool marks of several combined surfaces are consistent and whether the phenomenon of light and dark lines appears when machining cemented carbide by three-axis linkage. Since when the hardness of the processing material reaches above HRC65, the tool is prone to vibration, tool deflection, etc. during the cutting process, resulting in phenomena such as messy tool marks and rough tool marks on the combined surface, the present invention judges the machining performance of the machine tool according to the processing effect of the machine tool to be inspected on the test tool 100. When the above-mentioned adverse effects such as messy tool marks and rough tool marks appear, it can be reasonably judged that the machine tool is not suitable for processing cemented carbide materials.

[0046] In an application embodiment, the method of the present invention analyzes the machining performance of the machine tool to be inspected according to the processing effect of the test tool 100, and judges whether the machine tool meets the requirements for machining the combined surface of cemented carbide. For example, according to the effect of the machining tool marks, such as messy tool marks and rough tool marks, it can be judged that when machining materials with too high hardness, due to the insufficient rigidity of the Z-axis and the spindle, micro-vibrations are generated during the cutting process, resulting in different light and dark lines on each machining surface. Further, due to the insufficient vibration suppression of the machine tool to be inspected, the vibration is too large during the machining process, resulting in easy tool wear and then the phenomenon of messy tool marks. Therefore, according to the above inspection results, the performance of the spindle and the Z-axis of the machine tool to be inspected can be specifically strengthened.

[0047] In some embodiments, when machining the headlight curved surface machining performance inspection area 120, the present invention performs three-axis linkage finish machining on the headlight curved surface machining performance inspection area 120 through the machine tool to be inspected, so as to inspect whether there are phenomena such as chipping or becoming rounded at the sharp corners of the machined surface, and to inspect whether the machined surface can normally exhibit a reflective effect, that is, to inspect the surface reflection uniformity of the machined surface. When there are adverse conditions, it can be determined that the machine tool is not suitable for machining carbide materials. Specifically, because the arc surface inside the headlight is very small and basically cannot be processed later, the consistency requirements for each lamp surface are very high. When there is a defect in one lamp surface, the entire headlight surface needs to be re-polished. Therefore, the headlight curved surface machining has very high requirements for the overall stability of the machine tool. Preferably, a light source and a detection camera for inspecting the surface reflection brightness of the machined surface can be arranged above the test tool 100.

[0048] In an application embodiment, the present invention judges whether the three-axis dynamic performance, spindle vibration performance, thermal stability performance, etc. of the machine tool meet the requirements for machining carbide headlight curved surfaces according to the actual machining effect of the machine tool to be inspected on the test tool 100. For example, when the reflection of the headlight curved surface is uneven, it can be judged that the overall heat source performance of the machine tool does not meet the requirements for machining carbide. Specifically, key components such as the machine tool spindle and guide rail are deformed due to temperature rise, resulting in tool path deviation, and thus the reflection characteristics of the machined headlight curved surface become poor. Then, it is necessary to specifically optimize the cooling system of the machine tool to be inspected or the thermal compensation treatment of the control system. For example, due to the hard and brittle characteristics of carbide, when the spindle vibration is too large, chipping is likely to occur in the headlight curved surface machining performance inspection area 120, and when the dynamic response performance such as the servo dynamic response, machine tool rigidity, and tool compensation of the machine tool is insufficient, rounding is likely to occur in the headlight curved surface machining performance inspection area 120. The present invention can specifically improve the overall thermal performance, spindle vibration, and dynamic response performance of the machine tool to be inspected according to the machining effect of the headlight curved surface machining performance inspection area 120.

[0049] In some embodiments, when machining the diamond surface machining performance inspection area, the present invention performs three-axis linkage finish machining on the diamond surface machining performance inspection area through the machine tool to be inspected. Because it is necessary to continuously switch between the external angle (acute angle ≤ 30°) and the internal angle (R0.1 - R0.5 mm), the continuous change of the slope leads to a sharp increase in the complexity of the machining path. Among them, during continuous commutation, overshoot is likely to occur at the internal angle, and the external angle is likely to become rounded due to the lag of the machine tool dynamic response. Also, when using the tip of the tool to continuously machine the internal angle, it is difficult to keep the upper and lower surfaces of the internal angle consistent. Therefore, according to the machining effect of the diamond machining performance inspection area of the test tool 100, it can be judged whether the acceleration and deceleration control of the machine tool is reasonable. In particular, according to the machining effect during high-intensity reverse of the Z-axis, it can be judged whether the electrical selection of the machine tool servo motor and driver is qualified.

[0050] In an application embodiment, the present invention determines whether the performance of the machine tool can meet the processing requirements of the hard alloy diamond surface according to the processing effect of the diamond surface processing performance inspection area of the test tool 100. For example, when machining the inner and outer corners of the diamond surface, continuous acceleration and deceleration are required. According to the processing effect of the test tool 100, it can be determined whether its speed adjustment scheme is reasonable and whether the debugging consistency of the matching between each motion axis meets the requirements. Moreover, for diamond surface machining, in addition to the inner and outer corners, the surface finish of the flat inclined surface is also very important. Because when the Z-axis moves continuously up and down, it will accelerate the tool wear, thus affecting the surface finish of the inclined surface. Specifically, to make the machine tool run more smoothly, when the machine tool performs speed control, it is required to slightly decelerate in advance at the corner to avoid overcutting of the inner corner or rounding of the outer corner due to overshoot, or leaving vibration marks due to vibration, and to reduce the combined speed of the three axes and reduce the garbage points (redundant points) of the program parts, so as to avoid the appearance of ripples or uneven roughness on the flat inclined surface. Therefore, according to these processing effects of the diamond surface processing performance inspection area, the dynamic performance, tool life management, and system speed control algorithm of the machine tool to be inspected need to be improved to meet the processing requirements of hard alloy processing.

[0051] In some embodiments, when machining the grooving ability test area 140, the present invention inspects whether the machine tool can perform full-cut rough grooving on the grooving ability test area 140, and checks whether the tool can effectively cut and whether the tool generates resonance under the processing state where the tool is fully stressed axially and radially, that is, whether there is a high-frequency harsh sound during the cutting process of the machine tool. Among them, for the grooving function, the overall performance matching degree of the machine tool is required to be very high, and the axial stiffness and radial stiffness need to be highly matched, and neither can be lacking.

[0052] In an application embodiment, the present invention determines whether the machine tool meets the processing requirements of the hard alloy grooving process according to the processing effect of the grooving ability test area 140 of the test tool 100. For example, when grooving hard alloy, requirements are imposed on the three-axis rigidity of the machine tool to avoid adverse phenomena such as tool deflection or structural deformation. When the cutting force is insufficient, defects such as chipping and edge chipping will occur on the test tool 100. When there is a high-frequency harsh noise during the processing, the processing parameters need to be adjusted in time to avoid excessive vibration and generate defective products. Therefore, according to the processing effect of the machine tool to be inspected on the grooving ability test area 140, the matching of the axial and radial stiffness of the machine tool and the setting of the processing parameters can be improved accordingly to meet the processing requirements of hard alloy processing.

[0053] In some embodiments, when the punching die diversity inspection area 150 is processed, the present invention performs a punching die diversity inspection on the punching die diversity inspection area 150 through the machine tool to be inspected. Although the carbide die has a high life span in punching, it is also difficult to process. The blade is prone to notches and uneven blades. Especially when the cutting force is too large, it is easy to cause notches on the blade. Because the flatness and surface finish of the die play a decisive role in the cutting quality of the product, the vibration suppression performance and inter-axis linkage performance of the machine tool are required to be high, and the current fluctuation amount is required to be strictly controlled in the system and drive debugging.

[0054] In an application embodiment, the present invention determines whether the machine tool meets the processing requirements of stamping die diversity based on the processing effect of the stamping die diversity inspection area 150 of the test tool 100. Specifically, a plurality of arc processing paths with different shapes and curvatures are provided in the stamping die diversity inspection area 150. For example, when the test tool 100 has a blade notch or an uneven blade, the vibration source of the machine tool can be processed first, and the dynamic balance of the spindle and the rigidity of the fixture can be adjusted in a targeted manner to suppress the vibration of the machine tool. Secondly, the linkage synchronization performance of each moving axis needs to be finely adjusted, and the current fluctuation amount needs to be supplemented in real time to optimize the cutting parameters to reduce the cutting force and increase the linear speed, so that the suppression performance, motion control performance and processing parameter settings of the machine tool can meet the requirements of cemented carbide processing.

[0055] In some embodiments, in order to speed up the testing of cemented carbide, after the processing test, the present invention uses a stiffness tester to analyze the stiffness of the machine tool and a vibration tester to analyze the overall frequency of the machine tool after sufficient data on the deficiencies of the machine tool. When the tool is allowed to yield and high frequency is generated during processing, the main axis characteristics are analyzed. If edge collapse, missing corners, and chatter marks occur during processing, the curves of the three axes are decomposed using an oscilloscope.

[0056] It should be noted that, unlike the existing methods that focus on debugging, the present invention can determine which aspects of the machine tool performance are insufficient based on the processing effect and conduct targeted debugging. That is, the present invention can obtain mechanical data from the processing effect, obtain mechanical deficiencies from the defects, and see how the vibration marks are generated during debugging. It is understandable that when the processing hardness is high, it is difficult to subdivide the processing problems by traditional debugging method analysis alone, because when processing high-hardness materials, there will be more invisible problems, for example, when the tool contacts the workpiece, whether the tool is giving way or whether the tool is bent, which is difficult to reflect from the electrical debugging. After the test tool 100 is tested by the test method of the present invention, the specific mechanical shortcomings can be obtained from the processing defects, and the specific shortcomings obtained can be used as a starting point to start targeted improvement of the machinery.

[0057] By simulating the actual machining conditions of three axes under simultaneous force, it is possible to comprehensively evaluate the rigidity, vibration suppression performance and micro-vibration characteristics of the machine tool, effectively detect the synchronization of three-axis linkage and the system resonance tendency, and provide data support for the optimization of the machine tool's dynamic performance through the current waveform curve visualization technology. Its unique design not only verifies the feasibility of cemented carbide in CNC milling, breaks through the technical limitations of traditional electro-erosion and grinding machine processing, significantly reduces the processing procedures and increases the production efficiency by more than 30%, but more importantly, establishes a process specification system for cemented carbide milling. This test piece provides a key R & D verification tool for machine tool manufacturers. By quantitatively analyzing the force state of the cutting edge of the stamping die and the vibration spectrum characteristics, it guides the optimization of the machine tool structure and the debugging of the control system, thus enhancing the core technology competitiveness of machine tool manufacturers in the field of high-end cemented carbide processing equipment.

[0058] The test tool 100 and test method for inspecting cemented carbide processing machine tools of the present invention provide a general test tool 100 that can inspect whether a machine tool can process cemented carbide during processing, enabling machine tool development technicians to determine whether the partial stability of the machine tool meets the processing requirements during the design process, effectively evaluate the rigidity and vibration suppression of the machine tool, and provide an effective basis for improving micro-vibration. By performing the set processing procedures using the test method of the present invention, based on the processing effect of the test tool 100 of the present invention under the condition of three axes under simultaneous force, it can be quickly determined whether the machine tool is prone to resonance when processing cemented carbide. In system debugging, the synchronization of three-axis linkage, the visualization of the current waveform curve, and the influence on the cutting edge of the stamping die provide a true effect basis for judging whether the machine tool meets the cemented carbide processing performance. By inspecting the cemented carbide processing effect of a CNC machine tool using the present invention, the current situation where cemented carbide can only be processed by electro-erosion and grinding can be changed, and the processing inspection steps can be reduced, and the processing efficiency can be improved. In addition, based on the principle and test method of the test tool 100, the processing methods and processing requirements for cemented carbide processing are summarized, enabling the CNC machine tool to truly mill cemented carbide.

[0059] As described above, these are only the preferred embodiments of the present invention. The present invention is not limited to the above-mentioned embodiments. As long as it achieves the technical effects of the present invention by the same means, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present disclosure shall be included within the scope of protection of the present disclosure. They shall all belong to the scope of protection of the present invention. Within the scope of protection of the present invention, various different modifications and changes can be made to its technical solutions and / or implementation manners.

Claims

1. A test tool (100) for inspecting a cemented carbide processing machine tool, characterized in that, Including: A combined surface finish fineness inspection area (110), a headlight curved surface machining performance inspection area (120), a masonry surface machining performance inspection area (130), a grooving ability test area (140), and a stamping die diversity inspection area (150) for inspecting the performance of a machine tool.

2. The test fixture (100) for inspecting a cemented carbide processing machine tool according to claim 1, characterized in that, The combined surface finish fineness inspection area (110) includes a machining surface formed by any two or more combinations of an inclined surface, a circular surface, and a flat curved surface.

3. A testing method for a cemented carbide processing machine tool based on the testing appliance (100) as claimed in claim 1 or 2, characterized in that, The method includes: S100: Input multiple inspection areas of the test tool (100) and their corresponding machining processes to the machine tool to be inspected; S200: After determining the current inspection area and its current machining process through the machine tool to be inspected, start the machine tool to process the current inspection area; S300: According to the machining effect of the current inspection area, combined with the preset machining effect and machine tool performance inspection standard, determine whether the corresponding performance of the machine tool to be inspected is qualified, and determine the performance that needs to be improved for this machine tool; S400: Repeat steps S200 to S300 until the machine tool to be inspected completes the machining of all inspection areas of the test tool (100).

4. The method according to claim 3, wherein Perform three-axis linkage finish machining on the combined surface finish fineness inspection area (110) through the machine tool to be inspected, and determine whether the machine tool to be inspected meets the requirements for hard alloy machining according to the machining effect of the combined surface.

5. The method according to claim 4, wherein When there are messy tool marks and / or rough tool marks in the combined surface finish fineness inspection area (110), it is determined that the rigidity of the Z-axis and the spindle of the machine tool to be inspected is insufficient; when there are different bright and dark patterns on each machining surface of the combined surface finish fineness inspection area (110), it is determined that the vibration damping performance of this machine tool is insufficient.

6. The method according to claim 4, characterized in that, Perform three-axis linkage finish machining on the headlight curved surface machining performance inspection area (120) through the machine tool to be inspected, and determine whether the machine tool to be inspected meets the requirements for hard alloy machining according to the machining effect of the headlight curved surface.

7. The method according to claim 3, wherein When the reflection of the headlight curved surface is uneven, it is determined that the overall heat source performance of this machine tool is insufficient; when the reflection of the headlight curved surface is uneven, it can be judged that the vibration of the spindle of this machine tool is too large; when there are rounded corners on the headlight curved surface, it is determined that the dynamic response performance of this machine tool is insufficient.

8. The method according to claim 3, characterized in that, The test tool (100) includes a diamond surface machining performance inspection area. Perform three-axis linkage finish machining on the diamond surface machining performance inspection area through the machine tool to be inspected; determine whether the continuous acceleration and deceleration adjustment scheme of this machine tool is reasonable according to the machining effect of the diamond surface's internal and external corners.

9. The method according to claim 3, wherein Perform full tool rough grooving on the grooving ability test area (140) through the machine tool to be inspected; to check whether the tool can effectively cut, whether the tool generates resonance, and whether there is a high-frequency harsh sound during the machining process of the machine tool under the machining state where the tool is fully stressed axially and radially.

10. The method according to claim 3, wherein Perform die stamping on the stamping die diversity inspection area (150) through the machine tool to be inspected; determine whether there are deficiencies in the vibration damping performance and the inter-axis linkage performance of this machine tool according to the flatness and surface finish of the die.

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