Crystal turning radius measuring device and crystal grinding system

Abstract

The utility model discloses a crystal turning radius measuring device and a crystal grinding system, which are used for measuring the turning radius of a crystal, and the device comprises a mounting seat and a measuring unit arranged on the mounting seat. Wherein the measuring unit comprises a displacement sensor and an abutting piece, the abutting piece is arranged in front of a detection part of the displacement sensor, and when the device measures the rotation radius of the crystal, the detection part abuts against the crystal through the abutting piece. By using the device, the turning radius of each position on the circumference of the crystal can be quickly and accurately determined, the grinding starting point can be quickly positioned, the tool setting precision and efficiency can be improved, and the problem that the detection part of the displacement sensor is easy to wear can be solved.

Description

Technical Field

[0001] The present application relates to the field of measurement technology, and in particular to a crystal gyration radius measuring device and a crystal grinding system. Background Art

[0002] When rolling a crystal, determining the grinding starting point is one of the key links in the entire process. With the development of science and technology and the expansion of industrial production scale, higher requirements are put forward for processing efficiency, and at the same time, the requirements for processing accuracy have become more stringent.

[0003] In the related technology, manual tool setting is mainly used to determine the grinding starting point. The operator judges the distance between the grinding wheel and the crystal by naked eyes, and slowly adjusts the grinding wheel close to the crystal to perform rounding. This method not only requires high experience and skills of the operator, but also has low efficiency and difficulty in ensuring accuracy, which affects the quality of the product and processing efficiency. Summary of the invention

[0004] In order to address the deficiencies of the prior art, the purpose of the present application is to provide a gyration radius measuring device to quickly and accurately determine the gyration radius of each position on the crystal circumference, thereby quickly locating the starting point of grinding and improving the accuracy and efficiency of tool setting.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] A crystal gyration radius measuring device is used to measure the gyration radius of a crystal, and the device comprises:

[0007] A mounting base and a measuring unit disposed on the mounting base;

[0008] The measuring unit includes a displacement sensor and an abutment. The abutment is arranged in front of the detection part of the displacement sensor. Both the abutment and the detection part have translational freedom along a preset direction. The side of the abutment close to the detection part is used to abut the detection part, and the side of the abutment away from the detection part is used to abut the crystal.

[0009] Furthermore, the measuring unit further comprises a guide structure, the abutment member is connected to the guide structure, and the guide structure is used to guide the abutment member to move along a preset direction;

[0010] The device includes a working state and a non-working state. In the non-working state, a preset distance is spaced between the abutment member and the detection portion of the displacement sensor.

[0011] Furthermore, the measuring unit also includes an elastic member, and the elastic member abuts against the abutting member.

[0012] Furthermore, in a non-working state, the elastic member is in a pre-tensioned state.

[0013] Furthermore, the device also includes an adjustment unit, which is used to adjust the distance between the abutment and the detection part in the non-working state, and to adjust the pre-tension of the elastic part in the non-working state, and the distance between the abutment and the detection part is negatively correlated with the pre-tension.

[0014] Furthermore, the device also includes a motion unit, which includes a guide rail, a slider arranged on the guide rail, and a driving component that drives the slider to move along the guide rail. The measuring unit is fixedly connected to the slider, and the extension direction of the guide rail is parallel to the preset direction.

[0015] Furthermore, the motion unit also includes a connecting plate, which extends along a preset direction, one end of the connecting plate is fixedly connected to the slider, and one end of the connecting plate away from the slider is fixedly connected to the measuring unit.

[0016] Furthermore, the displacement sensor is fixedly connected to an end of the connecting plate away from the slider, the detection portion of the displacement sensor exceeds the edge of the connecting plate, and when the detection portion is compressed to the edge of the connecting plate, the displacement sensor does not reach the maximum range;

[0017] The abutment member can move along a preset direction, and the maximum stroke of the abutment member is reached when the abutment member abuts against the connecting plate.

[0018] Furthermore, a roller seat is provided on the side of the abutment member facing away from the displacement sensor. The roller seat is used to install a roller. The roller is used to abut against the crystal. The roller can roll in coordination with the crystal.

[0019] The present application also provides a crystal grinding system, which includes the crystal gyration radius measuring device as described above, and further includes:

[0020] A data receiving unit, the data receiving unit is used to receive the crystal gyration radius data measured by the measuring unit;

[0021] The processing unit is connected to the data receiving unit for communication, obtains the maximum gyration radius of the crystal according to the crystal gyration radius data, and determines the grinding starting point according to the maximum gyration radius.

[0022] According to the above description, the crystal gyration radius measuring device provided in the present application can use a displacement sensor to detect the gyration radius of the crystal, and by providing an abutment member in front of the detection part of the displacement sensor, when measuring the gyration radius of the crystal, it is possible to avoid direct contact between the detection part and the rotating crystal surface, thereby effectively reducing the wear of the detection part and extending the service life of the detection part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the crystal gyration radius measurement device provided in an embodiment of the present application.

[0024] Figure 2A schematic diagram of the structure of a measurement unit of a crystal gyration radius measurement device provided in an embodiment of the present application.

[0025] Figure 3 Schematic diagram of the hidden connecting plate assembly of the crystal gyration radius measuring device provided in an embodiment of the present application.

[0026] Figure 4 This is a front view of the crystal gyration radius measuring device provided in an embodiment of the present application.

[0027] Figure 5 Schematic diagram of the crystal grinding system structure provided in the embodiment of the present application

[0028] Icons: 100, crystal gyration radius measuring device; 11, mounting seat; 12, measuring unit; 121, displacement sensor; 1211, detection unit; 122, abutment member; 1221, roller seat; 1222, roller; 123, guide structure; 1231, guide rod; 1232, linear bearing; 1233, bearing fixing seat; 124, elastic member; 13, adjustment unit; 131, adjustment nut; 14, motion unit; 141, guide rail; 142, slider; 143, drive assembly; 1431, push rod; 1432, cylinder; 1433, cylinder fixing seat; 144, connecting plate.

[0029] 200. Crystal grinding system; 21. Data receiving unit; 22. Processing unit. DETAILED DESCRIPTION

[0030] The present application will be described in detail below in conjunction with the specific implementation modes shown in the accompanying drawings, but these implementation modes do not limit the present application. Structural, methodological, or functional changes made by ordinary technicians in the field based on these implementation modes are included in the protection scope of the present application.

[0031] like Figure 1 , Figure 2 As shown, an embodiment of the present application discloses a crystal gyration radius measuring device 100 for measuring the gyration radius of a crystal. The device includes a mounting seat 11 and a measuring unit 12 .

[0032] The mounting seat 11 is used to mount the measuring unit 12 .

[0033] The measuring unit 12 includes a displacement sensor 121 and an abutment 122. The abutment 122 is arranged in front of the detection part 1211 of the displacement sensor 121. The abutment 122 and the detection part 1211 both have translational freedom along a preset direction. The side of the abutment 122 close to the detection part 1211 is used to abut the detection part 1211, and the side of the abutment 122 away from the detection part 1211 is used to abut the crystal.

[0034] Specifically, the detection part 1211 of the displacement sensor 121 may be a probe, and the displacement change of the probe in the preset direction is the displacement change measured by the displacement sensor 121. It should be noted that the preset direction described in the embodiment of the present application includes the compression direction and the recovery direction of the detection part 1211 of the displacement sensor 121.

[0035] When the above device is used to measure the gyration radius of the crystal, the crystal is fixed on the rotating shaft of the grinding device, and the measuring unit 12 is controlled to move toward the crystal so that the abutment 122 abuts against the crystal. After the abutment 122 abuts against the crystal, the measuring unit 12 is continued to be controlled to move toward the crystal so that the detection part 1211 of the displacement sensor 121 abuts against the abutment 122 and the detection part 1211 is compressed. In this process, after the detection part 1211 is compressed to a certain distance, the measuring unit 12 is controlled to stop moving. After completing the above operation, the crystal is controlled to rotate at least one circle around the preset axis to measure and record the gyration radius of each position on the circumference of the crystal. The initial compression amount of the detection part 1211 before measurement can ensure that the detection part 1211 always abuts against the crystal through the abutment 122 during the measurement process, thereby ensuring the accuracy of the measured data. Finally, the recorded gyration radius data can be analyzed. For example, the largest gyration radius in the gyration radius data record is screened, and the grinding starting point is automatically determined based on the largest gyration radius. By using this device, the gyration radius of each position on the crystal circumference can be determined quickly and accurately, thereby automatically locating the starting point of grinding.

[0036] By providing the abutment member 122 in front of the detection part 1211 of the displacement sensor 121, it is possible to avoid the detection part 1211 from directly contacting the rotating crystal surface when measuring the crystal gyration radius, thereby effectively reducing the wear of the detection part 1211. In this way, the accuracy and stability of the measurement can be ensured, and the service life of the detection part 1211 can be extended.

[0037] As an optional implementation, Figure 2 As shown, the abutment member 122 is provided with a roller seat 1221, and the roller seat 1221 is used to install a roller 1222. When the device measures the rotation radius of the crystal, the roller 1222 abuts against the crystal, and the roller 1222 can roll with the crystal.

[0038] Specifically, the roller seat 1221 is provided with a mounting notch, and the roller 1222 is installed between the mounting notches of the roller seat 1221. When measuring the crystal gyration radius, the rotation axis of the roller 1222 placed on the roller seat 1221 is parallel to the rotation axis of the measured crystal, so that the roller 1222 can rotate with the crystal. Through the above arrangement, during the measurement of the crystal gyration radius, the friction between the abutment member 122 and the crystal can be reduced, thereby effectively reducing the wear of the abutment member 122 on the crystal surface.

[0039] As an optional implementation method, the measuring unit 12 of the crystal gyration radius measuring device 100 provided in the embodiment of the present application also includes a guide structure 123, the abutment 122 is connected to the guide structure 123, and the guide structure 123 is used to guide the abutment 122 to move along a preset direction; in addition, the device includes a working state and a non-working state. In the non-working state, the abutment 122 is spaced a preset distance from the detection part 1211 of the displacement sensor 121.

[0040] Specifically, the guide structure 123 is used to guide the abutment 122 to move in a preset direction, so that the movement direction of the abutment 122 is parallel to the movement direction of the detection part 1211, and the abutment 122 can smoothly compress the detection part 1211, and the data measured by the displacement sensor 121 is the displacement of the abutment 122, which can be simply converted into the crystal's gyration radius data without complicated calculations. In addition, when the device is in a non-working state, that is, when the device is not used to measure the crystal's gyration radius, a certain distance is maintained between the abutment 122 and the detection part 1211, which can ensure that the abutment 122 and the detection part 1211 will not come into contact in the non-working state. In this way, the detection part 1211 can be prevented from being subjected to unnecessary wear, thereby improving the measurement accuracy of the displacement sensor 121 and extending the service life of the displacement sensor 121.

[0041] As an optional implementation, Figure 2 As shown, the guide structure 123 includes a guide rod 1231, a linear bearing 1232 and a bearing fixing seat 1233. The guide rod 1231 and the displacement sensor 121 are arranged on the same side of the abutment 122, one end of the guide rod 1231 is connected to the abutment 122, and the other end extends in a preset direction and passes through the linear bearing 1232. Through the above arrangement, the linear bearing 1232 can effectively reduce the friction resistance of the guide rod 1231 when it moves, thereby improving the movement stability of the abutment 122.

[0042] In addition, if Figure 2 As shown, the displacement sensor 121 can be fixedly connected to the bearing fixing seat 1233, thereby ensuring that the conversion relationship between the displacement change of the abutment member 122 and the compression change of the detection part 1211 remains unchanged when measuring the crystal gyration radius, thereby ensuring the accuracy of the crystal gyration radius measurement result.

[0043] As an optional implementation, Figure 2 As shown, the measuring unit 12 further includes an elastic member 124 , and the elastic member 124 abuts against the abutting member 122 to reset the abutting member 122 .

[0044] Specifically, in the non-working state of the device, the detection part 1211 is not compressed, and a preset distance is spaced between the abutment 122 and the detection part 1211. For ease of explanation, in the embodiment of the present application, the position of the abutment 122 when the device is in the non-working state is referred to as the initial position. When using the crystal gyration radius measuring device 100 for measurement, during the rotation of the crystal, the elastic member 124 can continuously apply a supporting force to the abutment 122 to ensure that the abutment 122 is always in contact with the crystal during the measurement process, thereby ensuring the accuracy of the measurement data. In addition, after the measurement is completed, the abutment 122 is controlled to separate from the crystal. At this time, the elastic member 124 can also reset the abutment 122 to the initial position, so that after the measurement, the abutment 122 can be avoided from contacting the detection part 1211, reducing the wear on the detection part 1211.

[0045] As an optional implementation, when the device is in a non-working state, the elastic member 124 is in a pre-tensioned state.

[0046] Specifically, in this embodiment, when the device is in a non-working state, the elastic member 124 is in a pre-tensioned state, so that the elastic member 124 can hinder the abutment member 122 from moving toward the detection part, thereby avoiding contact between the abutment member 122 and the detection part 1211 in the non-working state due to external factors such as collision and vibration, thereby reducing the wear of the detection part 1211, extending the service life of the detection part 1211, and enabling the displacement sensor 121 to maintain measurement accuracy and reliability for a longer period of time.

[0047] As an optional implementation, the elastic member 124 is a spring. Specifically, the spring is disposed between the abutment member 122 and the linear bearing 1232. When the device is in a non-working state, the spring is in a pre-tensioned state, hindering the abutment member 122 from moving toward the detection portion 1211, ensuring that the abutment member 122 does not contact the sensor detection portion 1211 in the non-working state.

[0048] As an optional implementation method, the crystal rotation radius measuring device 100 provided in the embodiment of the present application also includes an adjustment unit 13, which is used to adjust the distance between the abutment 122 and the detection part 1211 in a non-working state, and to adjust the pre-tension of the elastic part 124 in the non-working state. The distance between the abutment 122 and the detection part 1211 is negatively correlated with the pre-tension.

[0049] Specifically, when the device is in a non-working state, the distance between the abutment member 122 and the detection portion 1211 can be adjusted by the adjustment unit 13, and there is a negative correlation between the distance between the abutment member 122 and the detection portion 1211 and the pre-tension of the elastic member 124, that is, when the distance between the abutment member 122 and the detection portion 1211 is reduced, the pre-tension of the elastic member 124 increases, and when the distance between the abutment member 122 and the detection portion 1211 is increased, the pre-tension of the elastic member 124 decreases. The pre-tension of the elastic member 124 in the non-working state is adjusted by the adjustment unit 13 to ensure that the abutment member 122 does not contact the sensor detection portion 1211 in the non-working state.

[0050] As an optional implementation, the adjustment unit 13 includes an adjustment nut 131. Specifically, a thread is provided at one end of the guide rod 1231 that passes through the linear bearing 1232, and the adjustment nut 131 is connected to the guide rod 1231 through the thread. In this way, the length of the guide rod 1231 extending out of the linear bearing 1232 can be adjusted by adjusting the nut 131, thereby adjusting the distance between the abutment 122 and the detection part 1211 and the initial compression degree of the elastic member 124. Through the above arrangement, the initial distance between the abutment 122 and the detection part 1211 when the device is in a non-working state can be adjusted to avoid contact between the abutment 122 and the detection part 1211 in the non-working state, thereby reducing the wear of the detection part 1211 and extending the service life of the detection part 1211.

[0051] As an optional implementation, Figure 3 As shown, the crystal gyration radius measuring device 100 provided in this embodiment also includes a motion unit 14, the motion unit 14 includes a guide rail 141, a slider 142 arranged on the guide rail 141, and a driving component 143 driving the slider 142 to move along the guide rail 141, the measuring unit 12 is fixedly connected to the slider 142, and the extension direction of the guide rail 141 is parallel to the preset direction.

[0052] Specifically, the mounting base 11 is provided with a guide rail 141, the extension direction of the guide rail 141 is parallel to the preset direction, and the slider 142 is matched with the guide rail 141, so that the slider 142 can move on the guide rail 141 along the extension direction of the guide rail 141. The measuring unit 12 is fixedly connected to the slider 142, and the driving assembly 143 can control the movement of the slider 142, thereby driving the measuring unit 12 to move.

[0053] When testing the crystal gyration radius, first adjust the position of the device so that the extension direction of the guide rail 141 points to the crystal to be tested, and the driving component 143 controls the slider 142 to move along the guide rail 141 so that the abutment 122 in front of the displacement sensor 121 abuts against the crystal. After the abutment 122 abuts against the crystal, the driving component 143 continues to control the movement of the slider 142 until the detection part 1211 contacts the abutment and the detection part 1211 reaches a preset compression amount. In this process, the movement direction of the slider 142, the movement direction of the abutment 122, and the movement direction of the detection part 1211 are parallel to each other, which can improve the stability of the slider 142, the abutment 122, and the detection part 1211 in the device when they move.

[0054] As an optional implementation, the control of the slider 142 by the driving component 143 may refer to the indication of the displacement sensor 121. Specifically, when the crystal gyration radius is to be measured, the driving component 143 controls the slider 142 to move until the displacement sensor 121 reaches a preset indication, and then the driving component 143 controls the slider 142 to stop moving and remain at the current position.

[0055] As an optional implementation, Figure 3 , Figure 4 As shown, the motion unit 14 further includes a connecting plate 144 , which extends along the guide rail 141 , one end of which is fixedly connected to the slider 142 , and one end of which is away from the slider 142 is fixedly connected to the measuring unit 12 .

[0056] Specifically, the connecting plate 144 extends in the direction of the guide rail 141, one end of the connecting plate 144 is fixedly connected to the slider 142, and the other end is fixedly connected to the displacement sensor 121 and the bearing fixing seat 1233. The displacement sensor 121 and the bearing fixing seat 1233 can be located on the same side of the connecting plate 144, or on the opposite sides of the connecting plate 144. Specifically, in the embodiment of the present application, the displacement sensor 121 and the bearing fixing seat 1233 are located on the opposite sides of the connecting plate 144. Specifically, the displacement sensor 121 is located on a side of the connecting plate 144 close to the guide rail 141, and the bearing fixing seat 1233 is located on a side of the connecting plate 144 away from the guide rail 141. Through the above arrangement, the displacement sensor 121 is placed between the guide rail 141 and the connecting plate 144, which can protect the displacement sensor 121, make the displacement sensor 121 less susceptible to external impact, and avoid damage to the displacement sensor 121. In addition, by fixing the measuring unit 12 to the end of the connecting plate 144 away from the slider 142 , the design length of the guide rail 141 can be shortened and the volume of the crystal gyration radius measuring device 100 can be reduced.

[0057] As an optional implementation, Figure 4As shown, the driving assembly 143 may include a push rod 1431, a cylinder 1432 and a cylinder fixing seat 1433. The cylinder fixing seat 1433 is fixedly connected to the mounting seat 11, the cylinder 1432 is mounted on the cylinder fixing seat 1433, one end of the push rod is fixedly connected to one end of the connecting plate 144 close to the slider, and the other end is arranged in the cylinder 1432. In this way, the push rod 1431 can be driven by the cylinder 1432 to push the connecting plate 144, so that the connecting plate 144 moves with the assistance of the slider 142, thereby driving the measuring unit 12 to move, and then the abutment 122 in front of the displacement sensor 121 abuts against the crystal. After the abutment member 122 abuts the crystal, the push rod 1431 continues to push the connecting plate 144. At this time, the detection part 1211 of the displacement sensor 121 moves to abut the abutment member 122, and the detection part 1211 will retract. Then, the crystal rotation is controlled and the data measured by the displacement sensor 121 when the crystal rotates is recorded to complete the measurement of the crystal rotation radius.

[0058] As another optional implementation, the driving mode of the motion unit 14 can also be set to hydraulic drive or electric drive, etc. For example, a hydraulic drive device can be set on the side of the connecting plate 144 close to the slider 142, and the connecting plate 144 can be controlled to reciprocate by the hydraulic drive device.

[0059] As an optional implementation, the displacement sensor 121 is fixedly connected to one end of the connecting plate 144 away from the slider 142, and the detection portion 1211 of the displacement sensor 121 exceeds the edge of the connecting plate 144, and when the detection portion 1211 is compressed to the edge of the connecting plate 144, the displacement sensor 121 does not reach the maximum range. In addition, the abutment member 122 can move in a preset direction, and when the abutment member 122 abuts against the connecting plate 144, the maximum stroke of the abutment member 122 is reached.

[0060] Specifically, the detection portion 1211 of the displacement sensor 121 exceeds the edge of the connecting plate 144, so that it can be ensured that the abutment member 122 can abut the detection portion 1211 of the displacement sensor 121 without being blocked by the connecting plate 144. In addition, when the detection portion 1211 of the displacement sensor 121 is compressed to the edge of the connecting plate 144, the displacement sensor 121 does not reach the maximum range. In this way, even if the detection portion 1211 has been compressed to align with the edge of the connecting plate 144, the connecting plate 144 can effectively block the abutment member 122, preventing the abutment member 122 from further pushing in the direction of the displacement sensor 121, thereby avoiding damage to the displacement sensor 121.

[0061] like Figure 5As shown, the present application also provides a crystal grinding system 200, which includes, in addition to the above-mentioned crystal gyration radius measuring device 100, a data receiving unit 21 and a processing unit 22. The data receiving unit 21 is used to receive the crystal gyration radius data measured by the measuring unit 12; the processing unit 22 is connected to the data receiving unit 21 for communication, obtains the maximum gyration radius of the crystal according to the crystal gyration radius data, and determines the grinding starting point according to the maximum gyration radius.

[0062] Specifically, the data receiving unit 21 is communicatively connected to the displacement sensor 121, and the data receiving unit 21 can receive the crystal rotation radius data collected by the displacement sensor 121; in addition, a communication connection is also established between the processing unit 22 and the data receiving unit 21, and the processing unit 22 can obtain the crystal rotation radius data received by the data receiving unit 21, and obtain the maximum rotation radius of the crystal based on the crystal rotation radius data, thereby determining the starting point of grinding.

[0063] When the crystal grinding system 200 is used, the crystal is clamped between the head and tail seats of the crystal grinding system 200, and the driving component 143 drives the slider 142 to move to drive the measuring unit 12 to move. The detection part 1211 of the measuring unit 12 abuts against the crystal through the abutment 122. The driving component 143 controls the slider 142 to stop moving and remain at the current position after the detection part 1211 is compressed to a certain distance. Then, the crystal grinding system 200 controls the crystal to be measured to rotate at least one circle, and the data receiving unit 21 records the gyration radius data on the circumference of the crystal and transmits these data to the processing unit 22. The processing unit 22 analyzes the received gyration radius data to obtain the maximum gyration radius of the crystal. And according to the maximum gyration radius of the crystal, the grinding starting point is automatically determined. Finally, the crystal grinding system 200 controls the grinding knife to move to the grinding starting point and starts the grinding operation.

[0064] By using the above-mentioned crystal grinding system 200, the automated processing method not only significantly improves the crystal grinding efficiency, but also helps to optimize the quality of crystal grinding, further meeting the needs of high-precision processing.

[0065] The above disclosure is only the preferred embodiment of the present application, but it is not intended to limit the scope of rights of the present application. A person of ordinary skill in the art can understand that without departing from the spirit and scope of the present application and the appended claims, changes, modifications, substitutions, combinations, and simplifications should all be equivalent replacement methods and still fall within the scope of the invention.

Claims

1. A crystal gyration radius measuring device (100), used to measure the gyration radius of a crystal, characterized in that: The device comprises: A mounting seat (11) and a measuring unit (12) arranged on the mounting seat (11); The measuring unit (12) comprises a displacement sensor (121) and an abutment member (122); the abutment member (122) is arranged in front of a detection portion (1211) of the displacement sensor (121); the abutment member (122) and the detection portion (1211) both have a degree of freedom of translation along a preset direction; a side of the abutment member (122) close to the detection portion (1211) is used to abut the detection portion (1211); and a side of the abutment member (122) away from the detection portion (1211) is used to abut the crystal.

2. The crystal gyration radius measuring device (100) according to claim 1, characterized in that: The measuring unit (12) further comprises a guiding structure (123), the abutting member (122) being connected to the guiding structure (123), and the guiding structure (123) being used for guiding the abutting member (122) to move along the preset direction; The device comprises a working state and a non-working state. In the non-working state, a preset distance is spaced between the abutment member (122) and the detection portion (1211) of the displacement sensor (121).

3. The crystal gyration radius measuring device (100) according to claim 2, characterized in that: The measuring unit (12) further comprises an elastic member (124), wherein the elastic member (124) abuts against the abutting member (122).

4. The crystal gyration radius measuring device (100) according to claim 3, characterized in that: In the non-working state, the elastic member (124) is in a pre-tensioned state.

5. The crystal gyration radius measuring device (100) according to claim 4, characterized in that: The device further comprises an adjustment unit (13), wherein the adjustment unit (13) is used to adjust the distance between the abutment member (122) and the detection portion (1211) in a non-working state, and to adjust the pre-tensioning force of the elastic member (124) in the non-working state, wherein the distance between the abutment member (122) and the detection portion (1211) is negatively correlated with the pre-tensioning force.

6. The crystal gyration radius measuring device (100) according to claim 1, characterized in that: The device further comprises a motion unit (14), the motion unit (14) comprising a guide rail (141), a slider (142) arranged on the guide rail (141), and a driving assembly (143) for driving the slider (142) to move along the guide rail (141), the measuring unit (12) is fixedly connected to the slider (142), and the extension direction of the guide rail (141) is parallel to the preset direction.

7. The crystal gyration radius measuring device (100) according to claim 6, characterized in that: The motion unit (14) further comprises a connecting plate (144), wherein the connecting plate (144) extends along the preset direction, one end of the connecting plate (144) is fixedly connected to the slider (142), and one end of the connecting plate (144) away from the slider (142) is fixedly connected to the measuring unit (12).

8. The crystal gyration radius measuring device (100) according to claim 7, characterized in that: The displacement sensor (121) is fixedly connected to an end of the connecting plate (144) away from the sliding block (142); the detection portion (1211) of the displacement sensor (121) exceeds the edge of the connecting plate (144); and when the detection portion (1211) is compressed to the edge of the connecting plate (144), the displacement sensor (121) does not reach the maximum range; The abutment member (122) is capable of moving along the preset direction, and the abutment member (122) reaches a maximum stroke of the abutment member (122) when abutting against the connecting plate (144).

9. The crystal gyration radius measuring device (100) according to claim 1, characterized in that: A roller seat (1221) is provided on the side of the abutment member (122) facing away from the displacement sensor (121); the roller seat (1221) is used to install a roller (1222); the roller (1222) is used to abut against the crystal; and the roller (1222) can roll in coordination with the crystal.

10. A crystal grinding system (200), characterized in that: The system comprises a crystal gyration radius measuring device (100) as claimed in any one of claims 1 to 9, The system further comprises: A data receiving unit (21), the data receiving unit (21) being used to receive the crystal gyration radius data measured by the measuring unit (12); The processing unit (22) is connected to the data receiving unit (21) for communication, and obtains the maximum rotation radius of the crystal according to the crystal rotation radius data, and determines the grinding starting point according to the maximum rotation radius.

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