A grinding and polishing machine capable of accurately detecting the pressure of handheld samples

Abstract

The utility model relates to a grinding and polishing machine, specifically a grinding and polishing machine capable of accurately detecting the pressure of a handheld sample, comprising a base plate, on which one or more grinding and polishing units are arranged, the grinding and polishing units comprising a unit bottom plate, which is different from the prior art in that one or more windows of corresponding shapes and slightly larger than the outline of the unit bottom plate are opened on the base plate, and one or more bridge blocks are also included, the two ends of the bridge block are respectively fixed to the unit bottom plate and the base plate, the unit bottom plate can pass through the window without hindrance, and the strain gauge of the strain sensor is firmly attached to the middle of the bridge block with an adhesive. Compared with the prior art, the utility model can ensure accurate detection of pressure during processing, thereby improving the quality of grinding and polishing.

Description

Technical Field

[0001] The utility model relates to a grinding and polishing machine, in particular to a grinding and polishing machine which can accurately detect the pressure of a handheld sample. Background Art

[0002] The applicant previously disclosed a grinding and polishing machine for detecting the pressure of a handheld sample through Chinese utility model patent publication number CN215281450U. The technical solution involves installing gravity sensors on the four legs of the base to measure the pressure applied to the grinding and polishing disc. However, since the measurement result includes the weight from the housing, base and grinding and polishing unit, as well as the actual force applied to the grinding and polishing disc, the overall measurement value is biased, thereby introducing a large error. Therefore, the prior art has limitations in accurately measuring the force applied only to the grinding and polishing disc. Utility Model Content

[0003] In order to overcome the technical problem or one of the technical problems existing in the prior art, the utility model provides a grinding and polishing machine which can accurately detect the pressure of a handheld sample. The technical solution adopted is:

[0004] A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample comprises a base plate, on which one or more grinding and polishing units are arranged, the grinding and polishing units comprising a unit bottom plate, which is different from the prior art in that one or more windows having corresponding shapes and slightly larger than the outline of the unit bottom plate are opened on the base plate, and one or more bridge blocks are also included, the two ends of the bridge block are respectively fixedly connected to the unit bottom plate and the base plate, the unit bottom plate can pass through the window unhindered, and the strain gauge of the strain sensor is firmly adhered to the middle of the bridge block with an adhesive.

[0005] Furthermore, the grinding and polishing unit also includes a motor fixed on the unit bottom plate, a rotating shaft rotatably mounted on the unit bottom plate, a driven wheel and a grinding and polishing turntable are respectively fixed at both ends of the rotating shaft, the output shaft of the motor is fixedly connected to the driving wheel, and belts are wound around the driving wheel and the driven wheel.

[0006] Furthermore, the fixed connection point between the bridging block and the unit bottom plate is the center of gravity of the corresponding grinding and polishing unit.

[0007] Furthermore, the bridging block is a rectangular parallelepiped as a whole, and the middle of the upper surface and / or the lower surface sinks inward to form a groove body, and the strain gauge is pasted on the bottom plane of the groove body.

[0008] Furthermore, a through hole with a plane is provided in the middle of the bridge block, and the strain gauge is pasted on the plane of the through hole.

[0009] Furthermore, two ends of the bridging block are fixed to the unit bottom plate and the base plate respectively by screws or rivets.

[0010] Furthermore, two ends of the bridging block are fixedly connected to the unit bottom plate and the base plate respectively by welding.

[0011] Furthermore, a reinforcing plate is fixedly connected to the base plate.

[0012] Furthermore, the unit bottom plate is a double-layer plate.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are mainly reflected in the following points:

[0014] Accuracy: The existing technology measures the pressure applied to the grinding and polishing disc by installing gravity sensors on the four legs of the base. The measurement results will be affected by the weight of the housing, base and grinding and polishing unit, resulting in measurement errors. The utility model opens a window of corresponding shape and slightly larger than the outline of the unit bottom plate on the base plate of the grinding and polishing machine, and firmly sticks the strain gauge of the strain sensor in the middle of the bridge block, accurately capturing the slight changes in the handheld sample pressure on the bridge block, thereby improving the pressure detection accuracy and increasing the scientificity of the measurement basis.

[0015] Pressure dispersion: In the new design, the bridge block in the grinding and polishing unit is fixedly connected to the base plate and the unit bottom plate, which disperses the pressure of the sample on each grinding and polishing unit during the grinding and polishing process, further ensuring the accuracy of the measurement results.

[0016] Convenient operation: By designing a window with a corresponding shape on the base plate and slightly larger than the outline of the unit bottom plate, it is ensured that the unit bottom plate can pass through unimpeded, making the grinding and polishing process continuous and smooth, reducing the difficulty of operation.

[0017] Simple structure and reasonable design: The new design scheme mentioned above changes the basis for measuring pressure values, making the structure simpler and the design more reasonable, making it easier to quickly and accurately obtain pressure data in actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific implementation method.

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure from another perspective. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with specific embodiments and drawings.

[0021] like Figure 1-2 As shown, a grinding and polishing machine capable of accurately detecting the pressure of a handheld sample comprises a base plate 1 on which two grinding and polishing units 2 are arranged. For a more intuitive view, one of the grinding and polishing units is separated from the base plate 1.

[0022] The polishing unit 2 includes a unit bottom plate 21, a motor 22 fixed on the unit bottom plate 21, a rotating shaft 26 rotatably mounted on the unit bottom plate 21, a driven wheel 24 and a polishing turntable 27 fixedly mounted at both ends of the rotating shaft 26, an output shaft of the motor 22 fixedly connected to a driving wheel 23, and a belt 25 is wound around the driving wheel 23 and the driven wheel.

[0023] More than two windows 11 of corresponding shape and slightly larger than the outline of the unit bottom plate 21 are opened on the base plate 1, and more than two bridging blocks 3 are also included. The two ends of the bridging block 3 are respectively fixed to the unit bottom plate 21 and the base plate 1. The unit bottom plate 21 can pass through the window 11 unimpeded, and the strain gauge of the strain sensor is firmly adhered to the middle of the bridging block 3 with adhesive.

[0024] The two ends of the bridge block 3 are respectively fixed to the unit bottom plate 21 and the base plate 1 by screws or rivets. The two ends of the bridge block 3 can also be respectively fixed to the unit bottom plate 21 and the base plate 1 by welding.

[0025] The dual-unit grinding and polishing machine of this embodiment has a window of corresponding shape and slightly larger than the outline of the unit bottom plate opened on the base plate of the grinding and polishing machine, and the strain gauge of the strain sensor is firmly attached to the middle of the bridge block, so as to accurately capture the slight changes in the bridge block caused by the pressure of the handheld sample, thereby improving the pressure detection accuracy and increasing the scientific nature of the measurement basis.

[0026] In another preferred embodiment, the fixed connection point between the bridge block 3 and the unit bottom plate 21 is the center of gravity of the corresponding grinding and polishing unit 2. This technical solution has the following beneficial technical effects:

[0027] Improved balance: Since the fixed point is located at the center of gravity of the grinding and polishing unit, the grinding and polishing unit is more stable during movement, reducing the difference in grinding and polishing quality caused by the center of gravity shift, thus obtaining a more consistent polishing effect.

[0028] Improved measurement accuracy: When the bridge block is located at the center of gravity of the grinding and polishing unit, the desired force can be measured more directly and accurately without being affected by additional factors (such as eccentric force).

[0029] Uniform pressure on the equipment: Because the bridge block is located at the center of gravity of the grinding and polishing unit, it distributes the pressure evenly on the grinding and polishing machine, helping to increase the service life of the equipment.

[0030] Improve the efficiency of grinding and polishing: When the bridge block is located at the center of gravity, it can help transmit greater pressure to the grinding and polishing disc, which will improve the efficiency of grinding and polishing.

[0031] In another preferred embodiment, the bridge block 3 is a rectangular parallelepiped as a whole, and the middle of the upper surface and / or the lower surface is sunken inward to form a slot body 31, and the strain gauge is attached to the bottom plane of the slot body 31. This technical solution has the following beneficial technical effects:

[0032] Improved accuracy: The strain gauge is placed in the slot, which can directly contact the deformation of the bridge block caused by the sample pressure, further improving the measurement accuracy.

[0033] Protect the strain gauge: The slot structure can protect the strain gauge from external interference and wear, extending its service life.

[0034] Environmental adaptability: The strain gauge design in the tank also takes into account the ability to work normally in various environments, improving the environmental adaptability of the machine.

[0035] Full utilization of space: The slot design makes full use of the space of the bridge block and also facilitates assembly and maintenance.

[0036] In another preferred embodiment, a through hole 32 with a plane is provided in the middle of the bridge block 3, and the strain gauge is pasted on the plane of the through hole 32. This technical solution has the following beneficial technical effects:

[0037] Accurate measurement: By pasting strain gauges on the through holes, the deformation of the bridge block caused by the sample pressure can be detected more directly and accurately, thereby improving the accuracy of pressure measurement.

[0038] Protect the strain gauge: By opening a through hole in the middle of the bridge block and pasting the strain gauge therein, the strain gauge can be effectively protected from external damage and its service life is increased.

[0039] Uniform field strength and reliable readings: The through-hole structure inside the bridge block makes the force measurement signal evenly distributed on the surface of the strain gauge, thus ensuring the reliability and accuracy of the readings.

[0040] Effective use of space: The through-hole design makes effective use of the internal space of the bridge block and facilitates the assembly and maintenance of the equipment.

[0041] In another preferred embodiment, the reinforcing plate 4 is fixed to the base plate 1, and the unit bottom plate 21 is a double-layer plate. This technical solution has the following beneficial technical effects:

[0042] Enhanced rigidity and prevention of deformation: First, the reinforcement plate can increase the rigidity of the base plate to prevent deformation of the base plate due to excessive pressure, thereby reducing the measurement errors that may be caused by this. Similarly, the double-layer structure of the unit bottom plate can also provide additional rigidity to prevent deformation caused by load or other external forces.

[0043] More accurate measurement: Due to the increased stiffness of the base plate and the unit bottom plate, the pressure changes can be reflected more accurately, so that the strain gauge can accurately measure the pressure transmitted from the base plate and the unit bottom plate, improving the measurement accuracy.

[0044] Improve equipment stability: The design of reinforced plates and double-layer plates increases the structural stability of the equipment, and can maintain the normal operation of the equipment under higher pressure or longer service life.

[0045] Extend service life: High-rigidity structures can reduce fatigue damage caused by long-term use or large load changes, and extend the service life of the equipment.

[0046] The detailed description of the utility model is based on an embodiment of a grinding and polishing machine that can accurately detect the pressure of a handheld sample, but it should be understood that the utility model is not limited to these specific embodiments. For those skilled in the art, various modifications or improvements can be made to the utility model based on the contents disclosed in this specification, and all these modifications or improvements should be included in the protection scope of the claims of the utility model.

Claims

1. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample, comprising a base plate (1), on which one or more grinding and polishing units (2) are arranged, wherein the grinding and polishing units (2) include a unit bottom plate (21), characterized in that: One or more windows (11) of corresponding shape and slightly larger than the outline of the unit bottom plate (21) are opened on the base plate (1), and one or more bridge blocks (3) are also included. The two ends of the bridge block (3) are respectively fixed to the unit bottom plate (21) and the base plate (1). The unit bottom plate (21) can pass through the window (11) without hindrance. The strain gauge of the strain sensor is firmly attached to the middle of the bridge block (3) with an adhesive.

2. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to claim 1, characterized in that: The grinding and polishing unit (2) further comprises a motor (22) fixedly mounted on the unit bottom plate (21), a rotating shaft (26) rotatably mounted on the unit bottom plate (21), a driven wheel (24) and a grinding and polishing turntable (27) respectively fixedly mounted at both ends of the rotating shaft (26), an output shaft of the motor (22) fixedly connected to a driving wheel (23), and a belt (25) wound around the driving wheel (23) and the driven wheel.

3. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to claim 1, characterized in that: The fixed connection point between the bridge block (3) and the unit bottom plate (21) is the center of gravity of the corresponding grinding and polishing unit (2).

4. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to claim 1, characterized in that: The bridging block (3) is a rectangular parallelepiped as a whole, and the middle of the upper surface and / or the lower surface sinks inwards to form a groove body (31), and the strain gauge is adhered to the groove bottom plane of the groove body (31).

5. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to claim 1, characterized in that: A through hole (32) having a plane is provided in the middle of the bridge block (3), and a strain gauge is adhered to the plane of the through hole (32).

6. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to claim 1, characterized in that: Two ends of the bridging block (3) are fixedly connected to the unit bottom plate (21) and the base plate (1) respectively by means of screws or rivets.

7. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to claim 1, characterized in that: The two ends of the bridging block (3) are respectively fixedly connected to the unit bottom plate (21) and the base plate (1) by welding.

8. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to any one of claims 1 to 7, characterized in that: In order to increase the rigidity of the base plate (1) and prevent measurement errors caused by deformation, a reinforcing plate (4) is fixedly connected to the base plate (1).

9. A grinding and polishing machine capable of accurately detecting the pressure of a handheld sample according to any one of claims 1 to 7, characterized in that: In order to improve the rigidity of the unit bottom plate (21) and prevent measurement errors caused by deformation, the unit bottom plate (21) is a double-layer plate.

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