Grinding and polishing apparatus

Abstract

The utility model discloses a kind of grinding and polishing equipment, comprising: base, grinding and polishing carousel and clamping assembly, clamping assembly is located on base and include multiple clamping mechanisms, multiple clamping mechanisms are arranged along the circumferential interval of grinding and polishing carousel, clamping mechanism includes mounting seat, clamping piece and connecting ball hinge, mounting seat is located at the outer circumferential side of grinding and polishing carousel, clamping piece includes connecting arm and clamping jaw, the one end of connecting arm length direction is connected with clamping jaw, the other end of connecting arm length direction is connected with mounting seat by connecting ball hinge, the length of connecting arm is adjustable, clamping jaw is located above grinding and polishing carousel, the clamping jaw of multiple clamping mechanisms jointly defines the clamping space for clamping sample.According to the grinding and polishing equipment of the utility model embodiment, the sample can be fully ground and polished by grinding and polishing carousel, the grinding and polishing precision of sample is improved;And, without relevant personnel manually pressing sample, reduce operation difficulty, improve operation safety.

Description

Technical Field

[0001] This utility model relates to the field of metallographic sample preparation equipment, and in particular to a grinding and polishing device. Background Technology

[0002] In metallographic polishing, traditional manual methods require personnel to hold the sample (e.g., a steel pipe) directly and press it against the polishing equipment. Due to limited clamping force, the sample can easily slip out of the hands during polishing, posing a safety hazard. Related technologies typically incorporate clamping components to secure the sample within the polishing equipment; however, these components cannot ensure effective contact between the sample and the equipment, potentially leading to insufficient polishing and reduced accuracy in metallographic analysis. Therefore, improvements are needed. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a polishing device in which, while the grippers hold the sample and the polishing turntable polishes the sample, the connecting arm, under its own weight, maintains sufficient contact between the sample and the polishing turntable, allowing the sample to be fully polished by the turntable and improving the polishing accuracy. Furthermore, it eliminates the need for manual pressing of the sample, reducing operational difficulty and improving operational safety.

[0004] A polishing device according to an embodiment of the present invention includes: a base; a polishing turntable rotatably disposed on the base; and a clamping assembly disposed on the base and used for clamping a sample. The clamping assembly includes multiple clamping mechanisms arranged at intervals along the circumference of the polishing turntable. Each clamping mechanism includes a mounting base, a clamping member, and a connecting ball joint. The mounting base is located on the outer periphery of the polishing turntable. The clamping member includes a connecting arm and a jaw. One end of the connecting arm in the length direction is connected to the jaw, and the other end of the connecting arm in the length direction is connected to the mounting base through the connecting ball joint. The length of the connecting arm is adjustable. The jaw is located above the polishing turntable, and the jaws of the multiple clamping mechanisms together define a clamping space for clamping the sample.

[0005] According to the present invention, the polishing equipment includes a connecting ball joint, and the connecting arm is connected to the mounting base through the connecting ball joint. This allows for a floating connection between the connecting arm and the mounting base. When the gripper holds the sample and the polishing turntable polishes the sample, the connecting arm maintains sufficient contact between the sample and the polishing turntable under its own weight, ensuring that the sample is fully polished by the polishing turntable and improving the polishing accuracy of the sample. Furthermore, it eliminates the need for personnel to manually press the sample, reducing operational difficulty and improving operational safety.

[0006] According to some embodiments of the present invention, the upper surface of the base is a first surface, the first surface is parallel to the horizontal plane, and the angle between the connecting arm and the horizontal plane is ≤5°.

[0007] According to some embodiments of the present invention, the gripper includes a gripper body and a pad. The gripper body is arc-shaped and connected to the connecting arm. The pad is disposed on the side of the gripper body facing the clamping space and is a flexible layer.

[0008] According to some embodiments of the present invention, the pad is detachably connected to the gripper body; and / or, the side surface of the pad facing the clamping space is a clamping surface, the clamping surface is an arc-shaped surface or the clamping surface includes two connected sub-clamping surfaces arranged at an angle, the sub-clamping surfaces being planar.

[0009] According to some embodiments of the present invention, the connecting arm includes a first connecting arm, an adjusting knob, and a second connecting arm. The first connecting arm is connected to the mounting base via the connecting ball joint. The outer peripheral wall of the first connecting arm is provided with a first thread, and the inner peripheral wall of the adjusting knob is provided with a second thread and sleeved on the outer peripheral side of the first connecting arm. The first thread and the second thread are engaged and connected. One end of the second connecting arm is rotatably connected to the adjusting knob, and the other end of the second connecting arm is fixedly connected to the clamp.

[0010] According to some embodiments of the present invention, the maximum distance that the second connecting arm can move relative to the first connecting arm along the length direction of the connecting arm is d, where 10mm≤d≤150mm.

[0011] According to some embodiments of the present invention, a pressure sensing component is also included, the pressure sensing component including a pressure sensor, the pressure sensor being disposed on the gripper and used to detect the clamping force applied by the gripper to the sample.

[0012] According to some embodiments of this utility model, the pressure sensor is a piezoelectric thin film sensor.

[0013] According to some embodiments of the present invention, the pressure sensing component includes an LED light and / or a buzzer. Both the LED light and the buzzer are mounted on a mounting base. The LED light or the buzzer is electrically connected to the pressure sensor. The pressure sensing component is configured such that when the pressure sensor detects that the clamping force of the gripper is greater than 30N, the LED light flashes and / or the buzzer sounds an alarm.

[0014] According to some embodiments of this utility model, both the base and the mounting base are metal parts, and the mounting base is fixed to the base by magnetic attraction.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a simplified schematic diagram of a grinding and polishing device according to some embodiments of the present invention; Figure 2 yes Figure 1 A partial structural diagram of the clamping mechanism in the middle; Figure 3 yes Figure 1 A schematic diagram of the clamping components; Figure 4 yes Figure 3 A cross-sectional view of a portion of the clamping component in the middle; Figure 5 yes Figure 1 A simplified diagram of the grippers in the process; Figure 6 This is a simplified schematic diagram of the grippers of a grinding and polishing device according to other embodiments of the present invention; Figure 7 yes Figure 3 A schematic diagram of the working process of the pressure sensor component in the diagram.

[0017] Figure label: 100. Grinding and polishing equipment; 1. Base; 10. First surface; 2. Polishing turntable; 3. Clamping assembly; 30. Clamping mechanism; 31. Mounting base; 32. Clamping component; 33. Connecting arm; 331. First connecting arm; 3311. First thread; 332. Adjusting knob; 3321. Second thread; 333. Second connecting arm; 34. Gripper; 341. Gripper body; 342. Pad; 3421. Clamping surface; 3422. Sub-clamping surface; 3423. Clamping space; 35. Connecting ball joint; 4. Pressure sensing components; 40. Pressure sensor. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] The following is for reference. Figures 1-7 Describes a polishing and grinding apparatus 100 according to an embodiment of the present utility model.

[0020] The polishing equipment 100 according to an embodiment of the present invention includes: a base 1, a polishing turntable 2, and a clamping assembly 3.

[0021] Reference Figure 1 The polishing turntable 2 is rotatably mounted on the base 1, and the clamping assembly 3 is mounted on the base 1 and used to clamp the sample. The clamping assembly 3 includes multiple clamping mechanisms 30, which are arranged at intervals along the circumference of the polishing turntable 2.

[0022] The clamping mechanism 30 includes a mounting base 31, a clamping member 32, and a connecting ball joint 35. The mounting base 31 is located on the outer periphery of the polishing turntable 2. The clamping member 32 includes a connecting arm 33 and a jaw 34. One end of the connecting arm 33 in the length direction is connected to the jaw 34, and the other end of the connecting arm 33 in the length direction is connected to the mounting base 31 through the connecting ball joint 35. The length of the connecting arm 33 is adjustable. The jaw 34 is located above the polishing turntable 2. The jaws 34 of the multiple clamping mechanisms 30 together define a clamping space 3423 for clamping the sample.

[0023] For example, the clamping assembly 3 includes four clamping mechanisms 30, which are arranged at intervals along the circumference of the polishing turntable 2. This allows the clamping mechanisms 30 to hold the sample more securely and more effectively prevents the sample from falling out.

[0024] For example, the connecting arm 33 and the gripper 34 are fixedly connected by bolts.

[0025] By including a connecting ball joint 35 in the polishing equipment 100, the connecting arm 33 can be rotated relative to the mounting base 31. After the relevant personnel move the connecting arm 33, the clamping space 3423 becomes larger, making it easier to place the sample in the clamping space 3423.

[0026] For example, when relevant personnel need to use the polishing equipment 100 to polish a sample, they first place the sample in the clamping space 3423, then adjust the length of the connecting arm 33 so that each gripper 34 is fully connected to the sample and the sample is clamped, and finally the polishing turntable 2 is rotated so that the polishing turntable 2 polishes the sample.

[0027] During the polishing process, since the connecting arm 33 is connected to the mounting base 31 through the connecting ball joint 35, the connecting arm 33 and the mounting base 31 can be floatingly connected. When the gripper 34 holds the sample and the polishing turntable 2 polishes the sample, the connecting arm 33 maintains full contact between the sample and the polishing turntable 2 under its own gravity, so that the sample can be fully polished by the polishing turntable 2, improving the polishing accuracy of the sample. In addition, there is no need for relevant personnel to manually clamp or press the sample, which can reduce the intensity of manual labor, reduce the difficulty of operation, and improve the safety of operation.

[0028] According to the present invention, the polishing equipment 100 includes a connecting ball joint 35, and the connecting arm 33 is connected to the mounting base 31 through the connecting ball joint 35. This allows the connecting arm 33 and the mounting base 31 to be floatingly connected. When the gripper 34 holds the sample and the polishing turntable 2 polishes the sample, the connecting arm 33 maintains sufficient contact between the sample and the polishing turntable 2 under its own gravity, allowing the sample to be fully polished by the polishing turntable 2, thus improving the polishing accuracy of the sample. Furthermore, it eliminates the need for personnel to manually press the sample, reducing the difficulty of operation and improving operational safety.

[0029] Reference Figure 1 According to some embodiments of this utility model, the upper surface of the base 1 is a first surface 10, which is parallel to the horizontal plane, and the angle between the connecting arm 33 and the horizontal plane is ≤5°. By ensuring that the angle between the connecting arm 33 and the horizontal plane is ≤5°, excessive downward movement of the connecting arm 33 can prevent the sample from being over-scraped.

[0030] Reference Figure 3 According to some embodiments of this utility model, the gripper 34 includes a gripper body 341 and a pad 342. The gripper body 341 is arc-shaped and connected to the connecting arm 33. The pad 342 is disposed on the side of the gripper body 341 facing the clamping space 3423, and the pad 342 is a flexible layer. For example, the pad 342 can be made of rubber. By including the pad 342 in the gripper 34, and making the pad 342 a flexible layer disposed on the side of the gripper body 341 facing the clamping space 3423, the pad 342 can contact the sample when the gripper 34 clamps the sample. The pad 342 can be used to protect the sample, reduce the deformation or wear of the sample caused by the clamping force of the gripper 34, and improve the accuracy of the sample.

[0031] According to some embodiments of this utility model, the pad 342 is detachably connected to the gripper body 341. By making the pad 342 detachably connected to the gripper body 341, when the pad 342 is old and damaged, relevant personnel can directly remove the old pad 342 from the gripper body 341 and replace the pad 342. This makes the replacement of the pad 342 more convenient and reduces maintenance costs.

[0032] Reference Figure 5 and Figure 6 According to some embodiments of this utility model, the surface of the pad 342 facing the clamping space 3423 is a clamping surface 3421, and the clamping surface 3421 is an arc-shaped surface; or, the clamping surface 3421 includes two connected sub-clamping surfaces 3422 arranged at an angle, and the sub-clamping surfaces 3422 are planar. By making the clamping surface 3421 an arc-shaped surface, the clamping surface 3421 can fit more closely to the sample with a circular edge, making the sample fixation more stable, and can reduce the clamping force of the jaws 34 on the sample, such as a thin-walled steel pipe, reducing sample deformation; by making the clamping surface 3421 include two connected sub-clamping surfaces 3422 arranged at an angle, and the sub-clamping surfaces 3422 are planar, the jaws 34 can clamp the sample, such as a thick-walled steel pipe, more fully.

[0033] For example, the pad 342 is detachably connected to the gripper body 341; the surface of the pad 342 facing the gripping space 3423 is the gripping surface 3421, which is an arc-shaped surface; or, the gripping surface 3421 includes two connected sub-gripping surfaces 3422 arranged at an angle, which are flat. When the polishing equipment 100 needs to polish various samples, the pad 342, which is more suitable for the sample, can be connected to the gripper body 341, and then the gripper 34 can clamp the sample, so that the gripper 34 can fully clamp samples with different edge shapes. The gripper 34 can adapt to a variety of samples with different edge shapes.

[0034] Reference Figure 4 According to some embodiments of the present invention, the connecting arm 33 includes a first connecting arm 331, an adjusting knob 332, and a second connecting arm 333. The first connecting arm 331 is connected to the mounting base 31 via a connecting ball joint 35. The outer peripheral wall of the first connecting arm 331 is provided with a first thread 3311. The inner peripheral wall of the adjusting knob 332 is provided with a second thread 3321 and is sleeved on the outer peripheral side of the first connecting arm 331. The first thread 3311 and the second thread 3321 are connected in cooperation. One end of the second connecting arm 333 is rotatably connected to the adjusting knob 332, and the other end of the second connecting arm 333 is fixedly connected to the gripper 34.

[0035] By providing a first thread 3311 on the outer peripheral wall of the first connecting arm 331 and a second thread 3321 on the inner peripheral wall of the adjusting knob 332, and by fitting the first thread 3311 and the second thread 3321 together, the adjusting knob 332 can rotate relative to the first connecting arm 331 and move axially relative to the first connecting arm 331.

[0036] By rotatably connecting one end of the second connecting arm 333 to the adjusting knob 332 and fixing the other end of the second connecting arm 333 to the gripper 34, the adjusting knob 332 can drive the second connecting arm 333 and the gripper 34 to move axially relative to the first connecting arm 331. Furthermore, the adjusting knob 332 can rotate relative to the second connecting arm 333. Thus, during the rotation of the adjusting knob 332, the second connecting arm 333 and the gripper 34 move axially, preventing the sample from rotating with the gripper 34.

[0037] For example, when personnel need to clamp a sample, they first place the sample in the clamping space 3423, then align the gripper 34 with the sample or bring the gripper 34 into contact with the sample. They then rotate the adjustment knob 332, causing the second connecting arm 333 to move away from the first connecting arm 331 relative to it. Simultaneously, because the gripper 34 is aligned with the sample, the sample's edge restricts the rotation of the gripper 34, thus restricting the rotation of the second connecting arm 333. This keeps the second connecting arm 333 fixed relative to the first connecting arm 331, with only the adjustment knob 332 rotating relative to the second connecting arm 333. Personnel adjust the lengths of the multiple connecting arms 33 until all grippers 34 are in full contact with the sample, ensuring a stable grip.

[0038] Reference Figure 4 According to some embodiments of this utility model, the maximum distance that the second connecting arm 333 can move relative to the first connecting arm 331 along the length direction of the connecting arm 33 is d, where 10mm ≤ d ≤ 150mm. For example, the value of d can be 10mm, 20mm, 50mm, 80mm, 100mm, 120mm, 150mm, etc. By ensuring that the maximum distance d that the second connecting arm 333 can move relative to the first connecting arm 331 along the length direction of the connecting arm 33 is not less than 10mm, the clamping mechanism 30 can be adapted to samples of a wider range of sizes. By ensuring that the maximum distance d that the second connecting arm 333 can move relative to the first connecting arm 331 along the length direction of the connecting arm 33 is not greater than 150mm, the excessive length of the clamping mechanism 30 along the axial direction of the first connecting arm 331 can be avoided, which would cause the overall size of the polishing equipment 100 to become too large.

[0039] For example, the clamping mechanism 30 can be used for steel pipe samples with diameters ranging from 10 mm to 150 mm.

[0040] Reference Figure 4 and Figure 7 According to some embodiments of the present invention, it also includes a pressure sensing component 4, which includes a pressure sensor 40. The pressure sensor 40 is disposed on the gripper 34 and is used to detect the clamping force applied by the gripper 34 to the sample.

[0041] For example, the gripper 34 includes a gripper body 341 and a pad 342. The gripper body 341 is arc-shaped and connected to the connecting arm 33. The pad 342 is disposed on the side of the gripper body 341 facing the clamping space 3423, and the pad 342 is a flexible layer. The pressure sensor 40 is disposed on the side of the pad 342 facing the clamping space 3423.

[0042] By including a pressure sensor 40 in the pressure sensing component 4, the pressure sensor 40 can detect the clamping force applied by the gripper 34 to the sample. Personnel can adjust the clamping force of the gripper 34 to the sample based on the pressure sensing component 4, so that the gripper 34 can fully clamp the sample while avoiding excessive clamping force that could cause sample deformation.

[0043] According to some embodiments of this utility model, the pressure sensor 40 is a piezoelectric thin film sensor. By making the pressure sensor 40 a piezoelectric thin film sensor, it is easier for the pressure sensor 40 to detect pressure and convert the pressure signal into an electrical signal, thus facilitating signal transmission.

[0044] For example, the range of a piezoelectric thin film sensor is 0~50N.

[0045] Reference Figure 7 According to some embodiments of the present invention, the pressure sensing component 4 includes an LED light and / or a buzzer. Both the LED light and the buzzer are mounted on the mounting base 31. The LED light or the buzzer is electrically connected to the pressure sensor 40. The pressure sensing component 4 is configured such that when the pressure sensor 40 detects that the clamping force of the gripper 34 is greater than 30N, the LED light flashes and / or the buzzer sounds an alarm.

[0046] For example, pressure sensing component 4 includes an LED light; as another example, pressure sensing component 4 includes a buzzer; and yet another example, pressure sensing component 4 includes both an LED light and a buzzer.

[0047] When the pressure sensor 40 detects that the clamping force of the gripper 34 is greater than 30N, the LED light flashes and / or the buzzer sounds an alarm. This can alert relevant personnel when the gripper 34 applies too much clamping force to the sample, thus preventing the sample from deforming due to excessive clamping force.

[0048] For example, refer to Figure 7The pressure sensing component 4 includes a pressure sensor 40, a signal amplifier, an MCU processor, an LED, and a buzzer. The pressure sensor 40 is electrically connected to the signal amplifier, which is in turn electrically connected to the MCU processor. The MCU processor is also electrically connected to the LED and the buzzer. When the pressure sensor 40 detects a clamping force greater than 30N, it transmits a signal to the signal amplifier. The signal amplifier amplifies the data from the pressure sensor 40 and transmits it to the MCU processor. The MCU processor then controls the buzzer to sound an alarm and controls the LED to flash.

[0049] Reference Figure 1 According to some embodiments of this utility model, both the base 1 and the mounting base 31 are metal parts, and the mounting base 31 is fixed to the base 1 by magnetic attraction. By fixing the mounting base 31 to the base 1 by magnetic attraction, the installation between the mounting base 31 and the base 1 can be made simpler.

[0050] For example, the mounting base 31 is magnetic, which can separate the base 1 from the mounting base 31, remove the clamping mechanism 30 from the base 1, and then fix the mounting base 31 to other metal bases 1 by magnetic attraction, so that the clamping mechanism 30 is installed on other bases 1, and the sample is polished using other polishing turntables 2 or in other polishing environments.

[0051] For example, the clamping mechanism 30 is suitable for complex grinding and polishing environments such as water cooling / oil cooling. By enabling the clamping mechanism 30 to be fixed or disassembled by magnetic attraction, maintenance costs are reduced by 60%.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0054] In the description of this utility model, "multiple" means two or more.

[0055] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0056] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A grinding and polishing device, characterized in that, include: Base; A polishing turntable is rotatably mounted on the base; A clamping assembly, mounted on a base and used for clamping samples, includes multiple clamping mechanisms arranged at intervals along the circumference of the polishing turntable. Each clamping mechanism includes a mounting base, a clamping member, and a connecting ball joint. The mounting base is located on the outer periphery of the polishing turntable. The clamping member includes a connecting arm and a jaw. One end of the connecting arm along its length is connected to the jaw, and the other end of the connecting arm along its length is connected to the mounting base via the connecting ball joint. The length of the connecting arm is adjustable. The jaw is located above the polishing turntable. The jaws of the multiple clamping mechanisms together define a clamping space for clamping the sample.

2. The grinding and polishing equipment according to claim 1, characterized in that, The upper surface of the base is the first surface, which is parallel to the horizontal plane, and the angle between the connecting arm and the horizontal plane is ≤5°.

3. The grinding and polishing equipment according to claim 1, characterized in that, The gripper includes a gripper body and a pad. The gripper body is arc-shaped and connected to the connecting arm. The pad is disposed on the side of the gripper body facing the clamping space and is a flexible layer.

4. The grinding and polishing equipment according to claim 3, characterized in that, The pad is detachably connected to the gripper body; and / or, the side surface of the pad facing the gripping space is a gripping surface, the gripping surface is an arc-shaped surface or the gripping surface includes two connected sub-gripping surfaces arranged at an angle, the sub-gripping surfaces being planar.

5. The grinding and polishing equipment according to claim 1, characterized in that, The connecting arm includes a first connecting arm, an adjusting knob, and a second connecting arm. The first connecting arm is connected to the mounting base via a connecting ball joint. The outer peripheral wall of the first connecting arm is provided with a first thread, and the inner peripheral wall of the adjusting knob is provided with a second thread and is sleeved on the outer peripheral side of the first connecting arm. The first thread and the second thread are engaged and connected. One end of the second connecting arm is rotatably connected to the adjusting knob, and the other end of the second connecting arm is fixedly connected to the gripper.

6. The grinding and polishing equipment according to claim 5, characterized in that, The maximum distance that the second connecting arm can move relative to the first connecting arm along the length direction of the connecting arm is d, where 10mm≤d≤150mm.

7. The grinding and polishing equipment according to claim 1, characterized in that, It also includes a pressure sensing component, which includes a pressure sensor disposed on the gripper and used to detect the clamping force applied by the gripper to the sample.

8. The grinding and polishing equipment according to claim 7, characterized in that, The pressure sensor is a piezoelectric thin film sensor.

9. The grinding and polishing equipment according to claim 7, characterized in that, The pressure sensing component includes an LED light and / or a buzzer. Both the LED light and the buzzer are mounted on a mounting base. The LED light or the buzzer is electrically connected to the pressure sensor. The pressure sensing component is configured to cause the LED light to flash and / or the buzzer to sound an alarm when the pressure sensor detects that the clamping force of the gripper is greater than 30N.

10. The grinding and polishing equipment according to any one of claims 1-9, characterized in that, Both the base and the mounting base are metal parts, and the mounting base is fixed to the base by magnetic attraction.

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