Automatic grinding equipment and process for brittle and hard workpieces

Abstract

The invention discloses automatic grinding equipment for brittle and hard workpieces. The automatic grinding equipment comprises a machine table, a workpiece main shaft part, a grinding main shaft part and a moving part, the workpiece main shaft part comprises a workpiece main shaft assembly and a workpiece clamping assembly, the grinding main shaft part comprises a grinding main shaft, a grinding head device and a measuring head device, the moving part comprises an X-axis moving device, a Z-axis moving device and a rotating device, the rotating device is arranged on the left side of the machine table, and the grinding main shaft part is arranged on the rotary table device. The Z-axis moving device is transversely arranged on the right side of the machine table and corresponds to the rotating device, the X-axis moving device is vertically arranged on the Z-axis moving device, and the grinding main shaft part is arranged on the X-axis moving device and corresponds to the workpiece main shaft part. And the structure is scientific and reasonable, the equipment space is saved, closed-loop detection and compensation machining are achieved, and the machining efficiency and quality are improved. The invention further discloses an automatic brittle and hard workpiece grinding process based on the equipment.

Description

Technical Field

[0001] The invention relates to the structure of grinding equipment and a grinding process, and in particular to an automatic grinding equipment and process for brittle and hard workpieces. Background Art

[0002] The grinding process of brittle and hard workpieces (such as tungsten steel, industrial ceramics, etc.) has its own particularity. Because of its high processing difficulty and high precision requirements, the use of traditional milling equipment or processes cannot meet the requirements. It is necessary to use grinding equipment and grinding processes for grinding to obtain the corresponding processing accuracy. For grinding brittle and hard workpieces, especially grinding processes with inner holes, it generally includes components such as inner diameter, arc, slope, etc. There are single inner diameter, arc or slope grinding processes, as well as composite grinding processes that combine two or three. Traditional grinding equipment generally includes a workpiece spindle part, a grinding spindle part, and a moving part; and the moving part includes an X-axis moving part, a Z-axis moving part, and a workpiece rotating part. Based on traditional grinding equipment, the traditional grinding process needs to rely on manual operation, manually use the dial to adjust the angle, manually feed the X and Z axes, and after preliminary processing, workers are required to perform manual testing and compensation to obtain the corresponding grinding processing accuracy. Traditional grinding equipment and grinding processes have a series of problems such as unreasonable equipment structure, inability to achieve closed-loop automated processing, low overall processing efficiency, and reliance on professional workers. Summary of the invention

[0003] In view of the above shortcomings, the purpose of the present invention is to provide an automated grinding device for brittle and hard workpieces to realize automated grinding processing of brittle and hard workpieces, which has a scientific and reasonable structure, saves equipment space, realizes closed-loop detection and compensation processing, and improves processing efficiency and quality. The purpose of the present invention is also to provide an automated grinding process for brittle and hard workpieces based on the above device.

[0004] The technical solution adopted by the present invention is: an automated grinding equipment for brittle and hard workpieces, including a machine table, a workpiece spindle part, a grinding spindle part and a moving part; the workpiece spindle part includes a workpiece spindle assembly and a workpiece clamping assembly, the grinding spindle part includes a grinding spindle, a grinding head device and a probe device, and the moving part includes an X-axis moving device, a Z-axis moving device and a rotating device, the rotating device is arranged on the left side of the machine table, the grinding spindle part is arranged on the turntable device, the Z-axis moving device is arranged horizontally on the right side of the machine table and corresponds to the rotating device, the X-axis moving device is arranged vertically on the Z-axis moving device, and the grinding spindle part is arranged on the X-axis moving device and corresponds to the workpiece spindle part.

[0005] Furthermore, the workpiece spindle assembly includes a workpiece spindle seat, a workpiece spindle and a workpiece spindle driving device. The workpiece spindle is arranged on the workpiece spindle seat. The workpiece spindle driving device is connected to the workpiece spindle to drive the workpiece spindle to rotate; the workpiece spindle driving device includes a workpiece spindle driving motor, a workpiece spindle driving pulley and a workpiece spindle driving synchronous belt.

[0006] Furthermore, the workpiece clamping assembly includes a flange and a clamping chuck, and the clamping chuck is arranged at the front end of the workpiece spindle through the flange.

[0007] Furthermore, a detachable mounting structure is provided at the end of the grinding spindle, and the grinding head device or the measuring head device is detachably provided at the end of the grinding spindle.

[0008] Furthermore, the Z-axis moving device includes a Z-axis base, a Z-axis guide slider assembly, a Z-axis grating ruler and a Z-axis linear motor, and the X-axis moving device includes an X-axis base, an X-axis guide slider assembly, an X-axis worktable, an X-axis grating ruler and an X-axis linear motor. The X-axis base is arranged on the Z-axis base through the Z-axis guide slider assembly, the Z-axis linear motor drives the X-axis base to move in the Z-axis direction, and the Z-axis grating ruler monitors the movement of the X-axis base in the Z-axis direction. The X-axis worktable is arranged on the X-axis base through the X-axis guide slider assembly, the X-axis linear motor drives the X-axis worktable to move in the X-axis direction, and the X-axis grating ruler monitors the movement of the X-axis worktable in the X-axis direction.

[0009] Furthermore, the grinding spindle is arranged on the X-axis workbench, and the horizontal height of the axis center thereof is consistent with the horizontal height of the axis center of the workpiece spindle.

[0010] Furthermore, the rotating device includes a DD turntable and a turntable connecting plate, and the workpiece spindle part is arranged on the DD turntable through the turntable connecting plate.

[0011] An automated grinding process for brittle and hard workpieces based on the device comprises the following steps:

[0012] 1) Set the standard parameters of the workpiece and store them in the control system of the automatic grinding equipment for brittle and hard workpieces. Based on the standard parameters of the workpiece, the allowable error is taken into account as the qualified parameters of the workpiece;

[0013] 2) Clamp the workpiece to be processed on the workpiece clamping assembly on the workpiece spindle assembly, then use the probe device on the grinding spindle to measure the actual parameters of the workpiece to be processed, and compare the actual parameters of the workpiece to be processed with the standard parameters of the workpiece, calculate the amount of grinding required for the inner diameter, arc or slope of the part to be processed of the workpiece, and form an automated grinding process step;

[0014] 3) The automated grinding equipment for brittle and hard workpieces performs automated grinding of the workpiece to be processed according to the automated grinding process steps formed in step 2), through the cooperation between the workpiece spindle part, the grinding spindle part and the moving part, and the grinding head device on the grinding spindle is used to perform automated grinding of the workpiece to be processed;

[0015] 4) Using the probe device on the grinding spindle to measure the workpiece to be processed after the automated grinding process, and judging whether the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece;

[0016] 4.1) If the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece, there is no need to perform compensatory grinding processing, and a qualified workpiece can be directly obtained;

[0017] 4.2) If the parameters of the workpiece to be processed at this time do not meet the qualified parameters of the workpiece, then compare them with the standard parameters of the workpiece again, calculate the amount of compensatory grinding required for the inner diameter, arc or slope of the part of the workpiece to be processed, and form an automated compensatory grinding process step; then, the automated grinding equipment for brittle and hard workpieces performs automated compensatory grinding on the workpiece to be processed according to the automated compensatory grinding process step, through the cooperation of the workpiece spindle part, the grinding spindle part and the moving part, using the grinding head device on the grinding spindle;

[0018] Continue to use the probe device on the grinding spindle to measure the workpiece to be processed after the automated compensating grinding process, and determine whether the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece; if yes, obtain a qualified workpiece, if not, continue to form the automated compensating grinding process steps, and perform automated compensating grinding until the parameters of the workpiece to be processed meet the qualified parameters of the workpiece, and obtain a qualified workpiece.

[0019] Furthermore, the automated grinding process steps and the automated compensating grinding process steps involve one, two or three combinations of inner diameter, arc and slope grinding processes, and are repeatedly processed from the inside to the outside with the outer end face of the workpiece as a reference.

[0020] Furthermore, when performing parameter measurement or grinding processing, the corresponding probe device or grinding head device is replaced and assembled on the grinding spindle through a manipulator device, or the corresponding probe device or grinding head device is replaced and assembled on the grinding spindle manually.

[0021] The present invention has the following advantages:

[0022] 1) Achieve fully closed-loop automated mechanical operation and grinding. Utilize DD turntable, linear motor, grating ruler and probe device to realize automatic feeding and real-time monitoring of rotation, Z axis, X axis, etc., and realize data feedback and system supplement.

[0023] 2) Improve the structural layout of the X-axis moving device, the Z-axis moving device and the rotating device, and use the superposition of the X-axis moving device and the Z-axis moving device to make their heights consistent with the corresponding rotating device (DD turntable), that is, the height of the DD turntable is equal to the heights of the X-axis moving device and the Z-axis moving device. In this way, the overall height of the equipment can be reduced, saving space and reducing the weight of the equipment, because the support frame originally used for raising the height is saved, and the weight can be reduced by at least 1 ton; in addition, in this left-right movement layout, the DD turntable is located on one side and only needs to be responsible for rotating and adjusting the angle, while forming a cross module with the X-axis moving device and the Z-axis moving device, and cooperating with the DD turntable on the other side, which can also make the movement more flexible and improve the grinding efficiency and accuracy.

[0024] 3) The use of this automated grinding equipment and process for brittle and hard workpieces can realize one, two or three combinations of automated grinding of inner diameter, arc and slope grinding. Based on the DD turntable, linear motor and corresponding detection feedback measures, the plane machining accuracy can reach ±0.002μm, the angle accuracy can reach ±0.02°, and the arc accuracy can reach ±0.005°.

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the automated grinding equipment for brittle and hard workpieces;

[0027] Figure 2 It is a schematic diagram of the matching structure between the rotating device and the spindle part of the workpiece;

[0028] Figure 3 It is a schematic diagram of the coordination structure of the X-axis moving device, the Z-axis moving device and the grinding spindle;

[0029] In the figure: machine table 1; workpiece spindle part 2; workpiece spindle assembly 21; workpiece spindle seat 211; workpiece spindle 212; workpiece spindle sheet metal cover 213; workpiece clamping assembly 22; flange 221; clamping chuck 222; grinding spindle part 3; grinding spindle 31; grinding head device 32; probe device 33; moving part 4; X-axis moving device 41; X-axis base 411; X-axis guide slider assembly 412; X-axis worktable 413; X-axis grating ruler 414; X-axis linear motor 415; Z-axis moving device 42; Z-axis base 421; Z-axis guide slider assembly 422; rotating device 43; DD turntable 431; turntable connecting plate 432. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the present invention, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] See also Figures 1 to 3 The automated grinding equipment for brittle and hard workpieces provided in this embodiment includes a machine table 1, a workpiece spindle part 2, a grinding spindle part 3 and a moving part 4; the workpiece spindle part 2 includes a workpiece spindle assembly 21 and a workpiece clamping assembly 22, the grinding spindle part 3 includes a grinding spindle 31, a grinding head device 32 and a probe device 33 (the grinding head device 32 and the probe device 33 are automatically or manually replaced on the grinding spindle 31), and the moving part 4 includes an X-axis moving device 41, a Z-axis moving device 42 and a rotating device 43, the rotating device 43 is arranged on the left side of the machine table 1, the grinding spindle part 3 is arranged on the turntable device 43, the Z-axis moving device 42 is horizontally arranged on the right side of the machine table 1, and corresponds to the rotating device 43, the X-axis moving device 41 is vertically arranged on the Z-axis moving device 42, and the grinding spindle part 3 is arranged on the X-axis moving device 41 and corresponds to the workpiece spindle part 2.

[0034] Specifically, the workpiece spindle assembly 21 includes a workpiece spindle seat 211, a workpiece spindle 212 and a workpiece spindle driving device (not shown in the drawings); the workpiece spindle 212 is arranged on the workpiece spindle seat 211; the workpiece spindle driving device is connected to the workpiece spindle 212 to drive the workpiece spindle to rotate 212; the workpiece spindle driving device includes a workpiece spindle driving motor, a workpiece spindle driving pulley and a workpiece spindle driving synchronous belt.

[0035] Of course, the workpiece spindle drive device can also be directly connected and driven by components such as a motor coupling, but the drive method using a motor, a pulley, and a belt will be more stable and reliable.

[0036] In addition, the workpiece spindle assembly may further include a workpiece spindle sheet metal cover 213 .

[0037] Specifically, the workpiece clamping assembly 22 includes a flange 221 and a clamping chuck 222 . The clamping chuck 222 is disposed at the front end of the workpiece spindle 212 through the flange 221 .

[0038] Specifically, a detachable mounting structure is provided at the end of the grinding spindle 31 , and the grinding head device 32 or the measuring head device 33 is detachably provided at the end of the grinding spindle.

[0039] It should be noted that, when necessary, an automatic tool changing device, such as a robot, can be provided to achieve automatic replacement of the grinding head device 32 or the measuring head device 33 .

[0040] Specifically, the Z-axis moving device 42 includes a Z-axis base 421, a Z-axis guide slider assembly 422, a Z-axis grating ruler and a Z-axis linear motor (not shown in the drawings, but similar to the X-axis grating ruler and the X-axis linear motor), and the X-axis moving device 41 includes an X-axis base 411, an X-axis guide slider assembly 412, an X-axis workbench 413, an X-axis grating ruler 414 and an X-axis linear motor 415. The X-axis base 411 is arranged on the Z-axis guide slider assembly 412. On the Z-axis base 421, the Z-axis linear motor 415 drives the X-axis base 411 to move in the Z-axis direction, and the Z-axis grating ruler monitors the movement of the X-axis base 411 in the Z-axis direction. The X-axis worktable 413 is set on the X-axis base 411 through the X-axis guide slider assembly 412. The X-axis linear motor 415 drives the X-axis worktable 413 to move in the X-axis direction, and the X-axis grating ruler 414 monitors the movement of the X-axis worktable 413 in the X-axis direction.

[0041] Specifically, the grinding spindle 31 is arranged on the X-axis workbench, and the horizontal height of the axis center thereof is consistent with the horizontal height of the axis center of the workpiece spindle 212 .

[0042] It should be noted here that grinding is generally performed on the cylindrical part of the workpiece. During processing, it is necessary to ensure that the axis is horizontally aligned to obtain the corresponding processing accuracy.

[0043] Specifically, the rotating device 43 includes a DD turntable 431 and a turntable connecting plate 432 , and the workpiece spindle portion 2 is disposed on the DD turntable 431 via the turntable connecting plate 432 .

[0044] Specifically, the workpiece spindle part 2 is arranged on the turntable connecting plate 432 through the workpiece spindle seat 211 of the workpiece spindle assembly 21. In addition, it can be connected through a slide rail structure, and the relative position of the workpiece spindle seat 211 on the turntable connecting plate 432 can be adjusted laterally when necessary. In addition, the DD turntable 431 can achieve a rotation of plus or minus 90 degrees.

[0045] The automated grinding process for brittle and hard workpieces based on the device comprises the following steps:

[0046] 1) Set the standard parameters of the workpiece and store them in the control system of the automatic grinding equipment for brittle and hard workpieces. Based on the standard parameters of the workpiece, the allowable error is taken into account as the qualified parameters of the workpiece;

[0047] 2) Clamp the workpiece to be processed on the workpiece clamping assembly on the workpiece spindle assembly, then use the probe device on the grinding spindle to measure the actual parameters of the workpiece to be processed, and compare the actual parameters of the workpiece to be processed with the standard parameters of the workpiece, calculate the amount of grinding required for the inner diameter, arc or slope of the part to be processed of the workpiece, and form an automated grinding process step;

[0048] 3) The automated grinding equipment for brittle and hard workpieces performs automated grinding of the workpiece to be processed according to the automated grinding process steps formed in step 2), through the cooperation between the workpiece spindle part, the grinding spindle part and the moving part, and the grinding head device on the grinding spindle is used to perform automated grinding of the workpiece to be processed;

[0049] 4) Using the probe device on the grinding spindle to measure the workpiece to be processed after the automated grinding process, and judging whether the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece;

[0050] 4.1) If the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece, there is no need to perform compensatory grinding processing, and a qualified workpiece can be directly obtained;

[0051] 4.2) If the parameters of the workpiece to be processed at this time do not meet the qualified parameters of the workpiece, then compare them with the standard parameters of the workpiece again, calculate the amount of compensatory grinding required for the inner diameter, arc or slope of the part of the workpiece to be processed, and form an automated compensatory grinding process step; then, the automated grinding equipment for brittle and hard workpieces performs automated compensatory grinding on the workpiece to be processed according to the automated compensatory grinding process step, through the cooperation of the workpiece spindle part, the grinding spindle part and the moving part, using the grinding head device on the grinding spindle;

[0052] Continue to use the probe device on the grinding spindle to measure the workpiece to be processed after the automated compensating grinding process, and determine whether the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece; if yes, obtain a qualified workpiece, if not, continue to form the automated compensating grinding process steps, and perform automated compensating grinding until the parameters of the workpiece to be processed meet the qualified parameters of the workpiece, and obtain a qualified workpiece.

[0053] It should be noted here that the automated grinding process for brittle and hard workpieces is an automated grinding process based on standard parameters of the workpiece (design parameters of the workpiece), actual parameters (measured parameters of the workpiece) and qualified parameters of the workpiece (i.e., the parameters to what extent the workpiece is processed to be qualified, i.e., the allowable processing error of the workpiece). In this process, it relies on automated grinding equipment for brittle and hard workpieces to carry out actual parameter measurement, automated grinding processing, and product inspection and measurement after processing. As for what kind of specific processing program is generated, such as how to feed and how much to feed, it will be automatically generated by the system according to the shape and parameters of the workpiece. For example, the procedures for processing arcs and processing slopes will be different. This application is mainly to protect the process steps of the automated grinding process for brittle and hard workpieces, rather than the specific processing program itself. Therefore, the control system for how to generate a specific processing program will not be elaborated here.

[0054] Specifically, the automated grinding process steps and the automated compensating grinding process steps involve one, two or three combinations of inner diameter, circular arc and slope grinding, and the outer end face of the workpiece is used as a reference to perform repeated multiple passes from the inside to the outside. It should be noted here that using the outer end face of the workpiece as a reference to perform repeated multiple passes from the inside to the outside is a more preferred reference for generating an automated grinding process program, but it does not represent the only way to generate the program. Theoretically, for example, if a workpiece has an inner diameter and an arc or slope, it is feasible to process the inner diameter first and then the arc or slope. However, in practice, the efficiency and accuracy of such one-by-one processing are not particularly ideal. The efficiency and accuracy are better when repeated multiple passes are performed from the inside to the outside.

[0055] Specifically, when performing parameter measurement or grinding processing, the corresponding probe device or grinding head device is replaced and assembled on the grinding spindle through a manipulator device, or the corresponding probe device or grinding head device is replaced and assembled on the grinding spindle manually.

[0056] The present invention aims to provide a scientifically and rationally constructed automated grinding device and process for brittle and hard workpieces, so as to realize automated grinding processing, closed-loop detection and compensation, and improve processing efficiency and quality.

[0057] In terms of equipment, it is composed of a machine table, a workpiece spindle part, a grinding spindle part and a moving part. The workpiece spindle part includes a workpiece spindle assembly and a workpiece clamping assembly. The former includes a workpiece spindle seat, a spindle and a drive device, and the latter is installed at the front end of the spindle through a flange. The grinding spindle part has a grinding spindle, a grinding head and a probe device, and a detachable structure is provided at the end of the spindle to install the two. The moving part includes an X-axis, a Z-axis moving device and a rotating device. The rotating device is on the left side of the machine table, and the X- and Z-axis moving devices are on the right side, with the X-axis above the Z-axis. The grinding spindle part is located on the X-axis moving device and corresponds to the workpiece spindle part. Each device achieves precise movement and monitoring through a specific structure.

[0058] The process steps are as follows: first set the standard parameters of the workpiece and the qualified parameter range, clamp the workpiece to be processed, use the probe device to measure the actual parameters, compare with the standard parameters to get the grinding amount, and the equipment performs automatic grinding based on this. After grinding, use the probe to measure again. If it meets the qualified parameters, the qualified workpiece is obtained. If it does not meet the requirements, the compensation grinding amount is calculated and processed again until it is qualified. The processing technology involves multiple combinations of inner diameter, arc, and slope grinding, and the processing is repeated based on the outer end face of the workpiece.

[0059] The invention has significant advantages: it realizes fully closed-loop automated operation and utilizes a variety of devices to achieve automated feeding, monitoring and data feedback; it optimizes device layout, reduces equipment height, saves space, reduces weight, and improves movement flexibility and processing accuracy; it can realize a variety of grinding processing combinations with high precision in planes, angles and arcs.

[0060] The present invention is not limited to the above-mentioned embodiments. Other automated grinding equipment and processes for brittle and hard workpieces obtained by adopting the same or similar technical features as the above-mentioned embodiments of the present invention are within the protection scope of the present invention.

Claims

1. An automatic grinding device for brittle and hard workpieces, comprising a machine table, a workpiece spindle part, a grinding spindle part and a moving part, characterized in that: The workpiece spindle part includes a workpiece spindle assembly and a workpiece clamping assembly, the grinding spindle part includes a grinding spindle, a grinding head device and a probe device, and the moving part includes an X-axis moving device, a Z-axis moving device and a rotating device. The rotating device is arranged on the left side of the machine, the grinding spindle part is arranged on the turntable device, the Z-axis moving device is arranged horizontally on the right side of the machine and corresponds to the rotating device, the X-axis moving device is arranged vertically on the Z-axis moving device, and the grinding spindle part is arranged on the X-axis moving device and corresponds to the workpiece spindle part.

2. The automatic grinding equipment for brittle and hard workpieces according to claim 1 is characterized in that: The workpiece spindle assembly includes a workpiece spindle seat, a workpiece spindle and a workpiece spindle driving device. The workpiece spindle is arranged on the workpiece spindle seat. The workpiece spindle driving device is connected to the workpiece spindle to drive the workpiece spindle to rotate; the workpiece spindle driving device includes a workpiece spindle driving motor, a workpiece spindle driving pulley and a workpiece spindle driving synchronous belt.

3. The automatic grinding equipment for brittle and hard workpieces according to claim 2 is characterized in that: The workpiece clamping assembly comprises a flange and a clamping chuck, and the clamping chuck is arranged at the front end of the workpiece spindle through the flange.

4. The automatic grinding equipment for brittle and hard workpieces according to claim 1 is characterized in that: A detachable mounting structure is arranged at the end of the grinding spindle, and the grinding head device or the measuring head device is detachably arranged at the end of the grinding spindle.

5. The automatic grinding equipment for brittle and hard workpieces according to claim 1 is characterized in that: The Z-axis moving device includes a Z-axis base, a Z-axis guide slider assembly, a Z-axis grating ruler and a Z-axis linear motor; the X-axis moving device includes an X-axis base, an X-axis guide slider assembly, an X-axis worktable, an X-axis grating ruler and an X-axis linear motor; the X-axis base is arranged on the Z-axis base through the Z-axis guide slider assembly; the Z-axis linear motor drives the X-axis base to move in the Z-axis direction; the Z-axis grating ruler monitors the movement of the X-axis base in the Z-axis direction; the X-axis worktable is arranged on the X-axis base through the X-axis guide slider assembly; the X-axis linear motor drives the X-axis worktable to move in the X-axis direction; and the X-axis grating ruler monitors the movement of the X-axis worktable in the X-axis direction.

6. The automatic grinding equipment for brittle and hard workpieces according to claim 5 is characterized in that: The grinding spindle is arranged on the X-axis workbench, and the horizontal height of the axis center thereof is consistent with the horizontal height of the axis center of the workpiece spindle.

7. The automatic grinding equipment for brittle and hard workpieces according to claim 1 is characterized in that: The rotating device comprises a DD turntable and a turntable connecting plate, and the workpiece spindle part is arranged on the DD turntable through the turntable connecting plate.

8. An automated grinding process for brittle and hard workpieces based on the equipment according to any one of claims 1 to 7, characterized in that: The steps include: 1) Set the standard parameters of the workpiece and store them in the control system of the automatic grinding equipment for brittle and hard workpieces. Based on the standard parameters of the workpiece, the allowable error is taken into account as the qualified parameters of the workpiece; 2) Clamp the workpiece to be processed on the workpiece clamping assembly on the workpiece spindle assembly, then use the probe device on the grinding spindle to measure the actual parameters of the workpiece to be processed, and compare the actual parameters of the workpiece to be processed with the standard parameters of the workpiece, calculate the amount of grinding required for the inner diameter, arc or slope of the part to be processed of the workpiece, and form an automated grinding process step; 3) The automated grinding equipment for brittle and hard workpieces performs automated grinding of the workpiece to be processed according to the automated grinding process steps formed in step 2), through the cooperation between the workpiece spindle part, the grinding spindle part and the moving part, and the grinding head device on the grinding spindle is used to perform automated grinding of the workpiece to be processed; 4) Using the probe device on the grinding spindle to measure the workpiece to be processed after the automated grinding process, and judging whether the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece; 4.1) If the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece, there is no need to perform compensatory grinding processing, and a qualified workpiece can be directly obtained; 4.2) If the parameters of the workpiece to be processed at this time do not meet the qualified parameters of the workpiece, then compare them with the standard parameters of the workpiece again, calculate the amount of compensatory grinding required for the inner diameter, arc or slope of the part to be processed of the workpiece, and form an automated compensatory grinding process step; Then, the brittle and hard workpiece automatic grinding equipment performs automatic compensatory grinding of the workpiece to be processed by using the grinding head device on the grinding spindle through the cooperation of the workpiece spindle part, the grinding spindle part and the moving part according to the automatic compensatory grinding process steps; Continue to use the probe device on the grinding spindle to measure the workpiece to be processed after the automated compensation grinding process, and determine whether the parameters of the workpiece to be processed at this time meet the qualified parameters of the workpiece; If yes, a qualified workpiece is obtained; if no, the automated compensatory grinding process steps are continued to be formed, and the automated compensatory grinding process is performed until the parameters of the workpiece to be processed meet the qualified parameters of the workpiece, and a qualified workpiece is obtained.

9. The automated grinding process for brittle and hard workpieces according to claim 8, characterized in that: The automated grinding process steps and the automated compensating grinding process steps involve one, two or three combinations of inner diameter, arc and slope grinding processes, and are repeatedly processed from the inside to the outside based on the outer end face of the workpiece.

10. The automated grinding process for brittle and hard workpieces according to claim 8, characterized in that: When performing parameter measurement or grinding processing, the corresponding probe device or grinding head device is replaced and assembled on the grinding spindle through a manipulator device, or the corresponding probe device or grinding head device is replaced and assembled on the grinding spindle manually.

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