Abrasive paper fixing clamp of metallographic sample grinding machine

Abstract

The utility model discloses an abrasive paper fixing clamp for a metallographic sample grinding machine, which comprises an abrasive paper positioning component, a clamping component, a clamping component, an abrasive paper fixing component, an abrasive paper fixing component and an abrasive paper fixing component, wherein the abrasive paper positioning component is arranged on one side of an abrasive disc and is used for positioning one side of abrasive paper on the abrasive disc; the pressed assembly is arranged on the other side of the grinding disc and is used for positioning the other side of the abrasive paper on the grinding disc in a pressing manner; and the pressure applying assembly is used for applying pressure to the pressed assembly and pushing the pressed assembly to press down and fix the abrasive paper. According to the utility model, one side of the abrasive paper on the abrasive disc is positioned by arranging the abrasive paper positioning assembly, then the pressing assembly is utilized to apply pressure to the pressed assembly, the pressed assembly is pushed to press down and fix the other side of the abrasive paper, so that the abrasive paper is quickly mounted, otherwise, when the abrasive paper needs to be dismounted, only the thrust applied by the pressing assembly to the pressed assembly needs to be relieved, and the abrasive paper can be dismounted. The whole installation and replacement method is simple, the metallographic grinding time is greatly shortened, and waste caused by installation errors of the abrasive paper is reduced.

Description

Technical Field

[0001] This utility model relates to the field of metallographic grinding technology, and in particular to a sandpaper fixing fixture for a metallographic grinding machine. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] There are three ways to fix sandpaper in existing metallographic grinding equipment.

[0004] The first method uses adhesive sandpaper. Operators must manually attach the sandpaper to the grinding disc. When the sandpaper wears out or needs replacement, the old sandpaper must be gradually removed and the new sandpaper reattached. This method has several problems: 1. Time-consuming: Replacing the sandpaper often takes a long time, reducing production efficiency; 2. Unevenness: Manual attachment results in uneven sandpaper installation, affecting grinding performance; 3. Operational complexity: Novice operators waste more time due to unfamiliarity with the process.

[0005] The second type uses a magnetic sandpaper fixing device, which uses magnetism to fix the sandpaper to the grinding disc, offering some convenience. However, this system also has some limitations: 1. Weak magnetic force: Under high-load grinding, the sandpaper may fall off due to excessive friction, causing work interruption; 2. Limited adaptability: Most magnetic sandpaper systems can only use specific types and sizes of sandpaper, limiting their versatility; 3. Cleaning and maintenance: The magnetic contact surface easily accumulates abrasive particles and impurities, affecting the magnetic effect and requiring regular cleaning.

[0006] The third type uses a snap-on sandpaper replacement device, which replaces the sandpaper through a simple release mechanism. While this mechanism improves the replacement speed to some extent, it still has the following drawbacks: 1. Complex structure: The snap-on mechanism may fail due to wear or frequent use, leading to instability in the replacement process; 2. Difficult alignment: It is necessary to ensure that the sandpaper is correctly aligned to avoid uneven grinding or damage to the equipment. Utility Model Content

[0007] The purpose of this utility model is to address the aforementioned shortcomings by providing a metallographic grinding sample sandpaper fixing fixture that enables automatic positioning and rapid replacement of metallographic sandpaper.

[0008] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a metallographic grinding sample sandpaper fixing fixture, comprising:

[0009] The sandpaper positioning component is located on one side of the sanding disc and positions the sandpaper on one side of the sanding disc by means of a snap-fit ​​mechanism.

[0010] The pressure-bearing component is located on the other side of the sanding disc and positions the other side of the sandpaper on the sanding disc by pressing.

[0011] The pressure-applying component is used to apply pressure to the pressure-receiving component, pushing the pressure-receiving component down to fix the sandpaper.

[0012] Furthermore, the sandpaper positioning component is an arc-shaped locking block concentric with the sanding disc, and a slot for horizontal insertion of sandpaper is provided between the inner ring of the arc-shaped locking block and the sanding disc.

[0013] Furthermore, the pressure-bearing component is an arc-shaped pressure block concentric with the grinding disc.

[0014] Furthermore, the pressure application component includes:

[0015] A mounting bracket is fixedly installed on the frosting disc.

[0016] The movable frame is rotatably connected to the fixed frame at one end, and extends towards the arc-shaped pressure block at the other end.

[0017] The pressing component is located at the end of the movable frame away from the fixed frame and is used to provide downward pressure to the pressure-bearing components;

[0018] A locking component is located between the fixed frame and the movable frame, and is used to lock the movable frame after the pressing component pushes the pressure-bearing component to press the sandpaper.

[0019] Furthermore, the pressing component includes:

[0020] The T-shaped rod is inserted on the movable frame, with one end used to press the arc-shaped pressure block and can move towards and away from the movable frame.

[0021] An elastic element, located between the T-shaped rod and the movable frame, is used to push one end of the corresponding arc-shaped pressure block of the T-shaped rod to move away from the movable frame, providing downward pressure to the arc-shaped pressure block.

[0022] Furthermore, one end of the T-shaped rod is fixedly connected to the corresponding arc-shaped pressure block.

[0023] Furthermore, the fixing frame is a connecting rod located near the pressure-bearing component, and the sum of the weights of the pressure-bearing component and the pressure-applying component is symmetrical with respect to the weight of the sandpaper positioning component about the center of gravity of the sanding disc.

[0024] Furthermore, the fixed frame and the movable frame are rotatably connected by a torsion spring, which is used to drive the movable frame to move away from the sandpaper after the locking component is unlocked.

[0025] Furthermore, the locking component includes:

[0026] Card slot, mounted on a fixed frame;

[0027] A locking pin is located at the top of the movable frame, with one end for engaging with a card holder. The card holder is locked and released by rotation.

[0028] Furthermore, the arc-shaped locking block can move up and down and is fixed to the grinding disc by screws to adjust the height of the corresponding slot.

[0029] The beneficial effects of this utility model are reflected in:

[0030] This invention uses a sandpaper positioning component to position one side of the sandpaper on the grinding disc. Then, a pressure-applying component applies pressure to a pressure-receiving component, pushing the pressure-receiving component down to fix the other side of the sandpaper, thus completing the quick installation of the sandpaper. Conversely, when disassembly is required, simply release the pushing force applied by the pressure-applying component to the pressure-receiving component to remove and replace the sandpaper. The entire installation and replacement method is simple, significantly shortening the metallographic grinding time and reducing waste caused by sandpaper installation errors. Attached Figure Description

[0031] Figure 1 This is a perspective view of the present invention;

[0032] Figure 2 This is a structural view of the pressure application component of this utility model;

[0033] Figure 3 This is a partial cross-sectional view of the locking component in another embodiment of the present invention.

[0034] In the picture:

[0035] 1. Sandpaper positioning assembly;

[0036] 2. Pressure-bearing components;

[0037] 3. Pressure application component; 31. Fixed frame; 32. Movable frame; 33. Pressing component; 34. Locking component; 341. Card holder; 342. Locking pin;

[0038] 4. Torsion spring. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0040] Please see Figure 1-3This utility model discloses a sandpaper fixing fixture for a metallographic grinding sample machine, comprising:

[0041] Sandpaper positioning component 1 is set on one side of the sanding disc and positions one side of the sandpaper on the sanding disc by a snap-fit ​​method;

[0042] The pressure-bearing component 2 is located on the other side of the sanding disc and is positioned on the other side of the sandpaper on the sanding disc by pressing.

[0043] The pressure-applying component 3 is used to apply pressure to the pressure-receiving component 2, pushing the pressure-receiving component 2 down to fix the sandpaper.

[0044] This invention uses a sandpaper positioning component 1 to position one side of the sandpaper on the grinding disc. Then, a pressure-applying component 3 applies pressure to a pressure-receiving component 2, pushing the pressure-receiving component 2 down to fix the other side of the sandpaper, thus completing the quick installation of the sandpaper. Conversely, when disassembly is required, simply release the pushing force applied by the pressure-applying component 3 to the pressure-receiving component 2, and the sandpaper can be pulled out for replacement. The entire installation and replacement method is simple, significantly shortening the metallographic grinding time and reducing waste caused by sandpaper installation errors.

[0045] In one embodiment, the sandpaper positioning component 1 is an arc-shaped locking block concentric with the sanding disc, and a slot for horizontal insertion of sandpaper is provided between the inner ring of the arc-shaped locking block and the sanding disc.

[0046] This design allows the sandpaper to be positioned horizontally by adhering closely to the side wall of the curved clip after being inserted into the slot. At the same time, the curved clip, in conjunction with the grinding disc, can hold the sandpaper on one side of the slot, thus positioning it vertically on that side.

[0047] In one embodiment, the pressure-bearing component 2 is an arc-shaped pressure block concentric with the grinding disc.

[0048] This design uses an arc-shaped pressure block to press down and fix the sandpaper on the other side, which can prevent the sandpaper from curling up and also avoid taking up too much of the effective sanding area.

[0049] In one embodiment, the pressure application component 3 includes:

[0050] The mounting bracket 31 is fixedly mounted on the grinding disc;

[0051] The movable frame 32 is rotatably connected to the fixed frame 31 at one end, and extends towards the side of the arc-shaped pressure block at the other end;

[0052] The pressing component 33 is located at the end of the movable frame 32 away from the fixed frame 31 and is used to provide downward pressure to the pressure-bearing component 2.

[0053] The locking component 34 is disposed between the fixed frame 31 and the movable frame 32, and is used to lock the movable frame 32 after the pressing component 33 pushes the pressure-receiving component 2 to press the sandpaper.

[0054] This design allows the pressure-applying component 3 to rotate together with the grinding disc after applying pressure to the pressure-receiving component 2, ensuring stable pressure application to the pressure-receiving component 2 during metallographic grinding. At the same time, the presence of the locking component 34 allows operators to quickly change the pressure state of the pressure-receiving component 2 simply by operating the locking component 34 to unlock or lock it. Even novice operators can quickly master the replacement process, lowering the technical threshold.

[0055] In one embodiment, the pressing component 33 includes:

[0056] A T-shaped rod is inserted on the movable frame 32. One end of the rod is used to press the arc-shaped pressure block and can move towards and away from the movable frame 32.

[0057] An elastic element, located between the T-shaped rod and the movable frame 32, is used to push one end of the corresponding arc-shaped pressure block of the T-shaped rod to move away from the movable frame 32, providing downward pressure to the arc-shaped pressure block.

[0058] This design allows the locking component 34 to lock the movable frame 32, and the pressing component 33 to use the thrust of the elastic element to provide downward pressure to the arc-shaped pressure block. Due to the setting of the T-shaped rod, there is still a certain amount of room for movement after the arc-shaped pressure block moves down to the sandpaper, so as to adapt to the offset caused by processing and installation errors and avoid damage to the sandpaper when pressing down.

[0059] In one embodiment, one end of the T-shaped rod is fixedly connected to the corresponding arc-shaped pressure block.

[0060] This design allows the locking component 34 to release the locking of the movable frame 32, enabling the curved pressure block to move upward by rotating the movable frame 32. This further optimizes the sandpaper replacement process and improves the efficiency of sandpaper replacement.

[0061] In one embodiment, the fixing frame 31 is a connecting rod disposed on the side close to the pressure-receiving component 2, and the sum of the weights of the pressure-receiving component 2 and the pressure-applying component 3 is symmetrical with respect to the weight of the sandpaper positioning component 1 about the center of gravity of the sanding disc.

[0062] This design ensures that the center of gravity of the grinding disc will not shift off the rotation axis due to the sandpaper positioning component 1, pressure component 2, and pressure application component 3 installed on it when the grinding disc rotates. This effectively reduces vibration and shaking during rotation and reduces wear on the grinding disc's rotation axis.

[0063] In one embodiment, the fixed frame 31 and the movable frame 32 are rotatably connected by a torsion spring 4, which is used to drive the movable frame 32 to move away from the sandpaper after the locking component 34 is unlocked.

[0064] This design allows the movable frame 32 to be automatically rotated away from the sandpaper by the reaction force of the torsion spring 4 after the locking component 34 is unlocked, thus improving the sandpaper replacement speed and significantly increasing the efficiency of metallographic grinding.

[0065] In one embodiment, the locking component 34 includes:

[0066] Card holder 341 is mounted on the fixing bracket 31;

[0067] The locking pin 342 is located on the top of the movable frame 32, and one end is threaded into the card holder 341. The card holder 341 is locked and released by rotation.

[0068] This design allows the locking component 34 to be unlocked simply by rotating the latch 342 off the base 341. Conversely, when the locking component 34 needs to be locked, the top of the base 341 is first passed through the movable frame 32, and then the latch 342 is rotated and installed on the top of the base 341. The latch 342 can then be used to prevent the movable frame 32 from moving off the base 341.

[0069] It should be noted that the movable frame 32 is provided with a strip-shaped insertion hole for the card holder 341 to be inserted after the movable frame 32 is rotated, and the outer diameter of the locking pin 342 is not less than the width of the strip-shaped insertion hole, thereby ensuring that the movable frame 32 is blocked by the locking pin 342 after locking and cannot be reset under the action of the torsion spring 4.

[0070] Please see Figure 3 In another embodiment, the locking component 34 includes:

[0071] Card holder 341 is mounted on fixed frame 31, and arc-shaped protrusion is provided on card holder 341;

[0072] The locking pin 342 is rotatably mounted on the top of the movable frame 32, and its bottom end is used to engage with the card holder 341. It also has a slot for the card holder 341 to be inserted after the movable frame 32 rotates. An arc-shaped retaining ring is provided in the slot, and the inner diameter of the arc-shaped retaining ring is smaller than the outer diameter of the arc-shaped protrusion.

[0073] This design allows the arc-shaped retaining ring to move to the bottom of the arc-shaped protrusion after the locking pin 342 is fitted onto the locking seat 341. Then, by rotating the locking pin 342, the arc-shaped retaining ring is rotated to the bottom of the arc-shaped protrusion. The arc-shaped protrusion then prevents the locking pin 342 with the arc-shaped retaining ring from disengaging from the locking seat 341, thus completing the locking operation of the locking component 34. Conversely, simply rotating the locking pin 342 causes the arc-shaped retaining ring to fall off the bottom of the arc-shaped protrusion, thus completing the unlocking operation.

[0074] In one embodiment, the arc-shaped locking block can move up and down and is fixed to the frosted disc by screws to adjust the height of the corresponding slot.

[0075] This design allows for the adjustment of the slot height and the use of screws to fix the arc-shaped clip onto the sanding disc, thus enabling the subsequent fixing of sandpaper modules of different thicknesses and ensuring that the equipment can be used normally in various environments.

[0076] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0077] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0078] Additionally, "multiple" refers to two or more.

[0079] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sandpaper fixing fixture for a metallographic grinding sample machine, characterized in that, include: The sandpaper positioning component is located on one side of the sanding disc and positions the sandpaper on one side of the sanding disc by means of a snap-fit ​​mechanism. The pressure-bearing component is located on the other side of the sanding disc and positions the other side of the sandpaper on the sanding disc by pressing. The pressure-applying component is used to apply pressure to the pressure-receiving component, pushing the pressure-receiving component down to fix the sandpaper.

2. The metallographic sample grinding machine sandpaper fixing fixture according to claim 1, characterized in that: The sandpaper positioning component is an arc-shaped locking block concentric with the sanding disc, and a slot for horizontal insertion of sandpaper is provided between the inner ring of the arc-shaped locking block and the sanding disc.

3. The metallographic sample grinding machine sandpaper fixing fixture according to claim 2, characterized in that: The pressure-bearing component is an arc-shaped pressure block concentric with the grinding disc.

4. The metallographic sample grinding machine sandpaper fixing fixture according to claim 1, characterized in that: The pressure application component includes: A mounting bracket is fixedly installed on the frosting disc. The movable frame is rotatably connected to the fixed frame at one end, and extends towards the arc-shaped pressure block at the other end. The pressing component is located at the end of the movable frame away from the fixed frame and is used to provide downward pressure to the pressure-bearing components; A locking component is located between the fixed frame and the movable frame, and is used to lock the movable frame after the pressing component pushes the pressure-bearing component to press the sandpaper.

5. The metallographic sample grinding machine sandpaper fixing fixture according to claim 4, characterized in that: The pressing component includes: The T-shaped rod is inserted on the movable frame, with one end used to press the arc-shaped pressure block and can move towards and away from the movable frame. An elastic element, located between the T-shaped rod and the movable frame, is used to push one end of the corresponding arc-shaped pressure block of the T-shaped rod to move away from the movable frame, providing downward pressure to the arc-shaped pressure block.

6. The metallographic sample grinding machine sandpaper fixing fixture according to claim 5, characterized in that: One end of the T-shaped rod is fixedly connected to the corresponding arc-shaped pressure block.

7. The metallographic sample grinding machine sandpaper fixing fixture according to claim 4, characterized in that: The fixing frame is a connecting rod located near the pressure-bearing component. The sum of the weights of the pressure-bearing component and the pressure-applying component is symmetrical with respect to the weight of the sandpaper positioning component about the center of gravity of the sanding disc.

8. The metallographic grinding sample fixing fixture according to claim 4, characterized in that: The fixed frame and the movable frame are rotatably connected by a torsion spring, which is used to move the movable frame away from the sandpaper after the locking component is unlocked.

9. The metallographic sample grinding machine sandpaper fixing fixture according to claim 4, characterized in that: The locking component includes: Card slot, mounted on a fixed frame; A locking pin is located at the top of the movable frame, with one end for engaging with a card holder. The card holder is locked and released by rotation.

10. The metallographic sample grinding machine sandpaper fixing fixture according to claim 2, characterized in that: The arc-shaped locking block can move up and down and is fixed to the grinding disc by screws to adjust the height of the corresponding slot.

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