Abrasive paper fixing mechanism for abrasive paper polishing equipment

Abstract

According to the abrasive paper fixing mechanism for the abrasive paper grinding equipment, a first screw penetrating through a limiting rod is rotationally arranged at the upper end of a limiting seat, the first screw is in threaded connection with the limiting rod, a plurality of cavities are formed in the two ends of a grinding seat, springs are arranged in the cavities, a second screw is rotated, and a driving block can descend along a guide rod; at the moment, after being extruded by the driving block, the two driven blocks can synchronously slide towards the two sides of the polishing base, then the L-shaped push plate can slide in the sliding groove, the two tensioning frames can synchronously expand towards the outer side of the polishing base at the two ends of the polishing base, then the two ends of the abrasive paper can be driven to be tightened, and the abrasive paper plate can be tighter on the lower surface of the polishing base.

Description

Technical Field

[0001] The utility model relates to the technical field of sandpaper polishing equipment, in particular to a sandpaper fixing mechanism for sandpaper polishing equipment. Background Art

[0002] When processing some workpieces, sandpaper grinding equipment is needed. Usually, the sandpaper is fixed on the grinding seat, and the grinding seat is manually taken to grind the specified workpiece;

[0003] When fixing the sandpaper, both ends of the sandpaper are mostly bonded to the grinding seat, but the sandpaper itself is prone to wrinkles and cannot be tightened, which will reduce the grinding quality of the grinding equipment. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a sandpaper fixing mechanism for a sandpaper polishing device.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sandpaper fixing mechanism for sandpaper grinding equipment, comprising a grinding seat, two limit seats and a tensioning frame symmetrically arranged at both ends of the grinding seat, a first empty slot provided on the limit seat, two tensioning shafts symmetrically arranged on the tensioning frame, both ends of the tensioning shaft are rotatably connected to the tensioning frame, and a second empty slot is provided between the two tensioning shafts, a limit rod is provided above the limit seat, both ends of the limit rod can pass through the limit seat and be inserted into the interior of the first empty slot, a first screw penetrating the limit rod is rotatably provided on the upper end of the limit seat, the first screw is threadedly connected to the limit rod, and both ends of the grinding seat are provided with a limit rod. It is provided with multiple cavities, springs are provided inside the cavities, support rods are provided at both ends of the tensioning frame, which are inserted into the cavities and connected to the springs, two slide grooves are symmetrically provided at both ends of the grinding seat, and the middle part of the tensioning frame is provided with an L-shaped push plate which is inserted into the interior of the grinding seat and passes through the slide groove. A driven block is fixedly provided on the upper end of the L-shaped push plate, and the driven block can slide on the upper end of the grinding seat. A driving block and multiple guide rods passing through the driving block are provided at the upper end of the grinding seat. A second screw passing through the driving block is rotatably provided at the upper end of the grinding seat, and the second screw is threadedly connected to the driving block. Both sides of the driving block are in contact with the inner side of the driven block, and the contact surfaces are both inclined surfaces.

[0008] Furthermore, the present invention is improved in that the plurality of guide rods respectively pass through the four corners of the driving block.

[0009] In order to facilitate the operation of the first screw rod and the second screw rod, the present invention is improved in that the upper ends of the first screw rod and the second screw rod are both provided with a toggle block.

[0010] Furthermore, the present invention is improved in that both ends of the limit rod are provided with anti-sliding blocks located inside the first empty slot.

[0011] Furthermore, the present invention has been improved in that a plurality of balls contacting the driven block are provided on both sides of the driving block.

[0012] Furthermore, the present invention has been improved in that the driving block adopts an isosceles trapezoidal structure, and the driven block adopts a right-angled trapezoidal structure.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a sandpaper fixing mechanism for sandpaper polishing equipment, which has the following beneficial effects:

[0015] The sandpaper grinding device uses a sandpaper fixing mechanism, which can limit the two ends of the sandpaper board through a limit rod. The second screw is rotated to make the driving block descend along the guide rod. At this time, the two driven blocks will synchronously slide to the two sides of the grinding seat after being squeezed by the driving block, so that the L-shaped push plate can slide in the slide groove, so that the two tensioning frames can synchronously expand toward the outside of the grinding seat at both ends of the grinding seat, thereby driving the two ends of the sandpaper to be tightened, making the sandpaper board tighter on the lower surface of the grinding seat, making it less likely for the sandpaper board to be wrinkled on the lower surface of the grinding seat, thereby improving the grinding quality of the grinding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a top view;

[0017] Figure 2 For this utility model Figure 1 The main view;

[0018] Figure 3 This is a schematic diagram of the docking structure of the tensioning frame and the L-shaped push plate in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the hollow cavity of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the L-shaped push plate in the utility model;

[0021] In the figure: 1. Grinding seat; 2. Limit seat; 3. First slot; 4. Limit rod; 5. First screw; 6. Tensioning frame; 7. Tensioning shaft; 8. Second slot; 9. Support rod; 10. Cavity; 11. Slide; 12. L-shaped push plate; 13. Follower block; 14. Driving block; 15. Guide rod; 16. Second screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5 , the utility model is a sandpaper fixing mechanism for sandpaper grinding equipment, including a grinding seat 1, two limit seats 2 and a tensioning frame 6 are symmetrically arranged at both ends of the grinding seat 1, a first empty slot 3 is provided on the limit seat 2, two tensioning shafts 7 are symmetrically arranged on the tensioning frame 6, both ends of the tensioning shaft 7 are rotatably connected to the tensioning frame 6, and a second empty slot 8 is provided between the two tensioning shafts 7, a limit rod 4 is provided above the limit seat 2, both ends of the limit rod 4 can pass through the limit seat 2 and be inserted into the inside of the first empty slot 3, the upper end of the limit seat 2 is rotatably provided with a first screw 5 that passes through the limit rod 4, the first screw 5 is threadedly connected to the limit rod 4, and a plurality of cavities 10 are provided at both ends of the grinding seat 1, the interior of the cavity 10 A spring is provided, and both ends of the tensioning frame 6 are provided with support rods 9 inserted into the cavity 10 and connected to the spring. Two slide grooves 11 are symmetrically provided at both ends of the grinding seat 1, and the middle part of the tensioning frame 6 is provided with an L-shaped push plate 12 inserted into the interior of the grinding seat 1 and passing through the slide groove 11. The upper end of the L-shaped push plate 12 is fixedly provided with a driven block 13, and the driven block 13 can slide on the upper end of the grinding seat 1. The upper end of the grinding seat 1 is provided with a driving block 14 and a plurality of guide rods 15 passing through the driving block 14. The upper end of the grinding seat 1 is rotatably provided with a second screw 16 passing through the driving block 14, and the second screw 16 is threadedly connected to the driving block 14. Both sides of the driving block 14 are in contact with the inner side of the driven block 13, and the contact surfaces are both inclined surfaces;

[0024] In this embodiment, first, the two ends of the sandpaper pass through the first slot 3 and the second slot 8 respectively, and then the sandpaper is pressed on the plane. At this time, the first screw 5 is rotated so that the two ends of the limit rod 4 provide a pressure to the sandpaper in the first slot 3, thereby positioning the sandpaper on the grinding seat 1. The second screw 16 is further rotated, and the driving block 14 can be lowered along the guide rod 15 through the action of the thread structure. At this time, the two driven blocks 13 will slide synchronously to the two sides of the grinding seat 1 after being squeezed by the driving block 14, thereby The L-shaped push plate 12 slides in the slide groove 11, so that the two tensioning frames 6 at both ends of the grinding seat 1 can be synchronously expanded toward the outside of the grinding seat 1, thereby driving the two ends of the sandpaper to be tightened, making the sandpaper board tighter on the lower surface of the grinding seat 1, making it less likely for the sandpaper board to be wrinkled on the lower surface of the grinding seat 1, thereby improving the grinding quality of the grinding equipment. When the two tensioning frames 6 move toward the outside of the grinding seat 1, the support rod 9 will stretch the spring, and the rebound force of the spring can facilitate the two tensioning frames 6 to be reset on both sides of the grinding seat 1.

[0025] In this embodiment, the plurality of guide rods 15 respectively pass through the four corners of the driving block 14 , which can improve the stability of the driving block 14 during lifting.

[0026] In this embodiment, the upper ends of the first screw rod 5 and the second screw rod 16 are both provided with a toggle block, which can facilitate the operation of the first screw rod 5 and the second screw rod 16.

[0027] Furthermore, both ends of the limiting rod 4 are provided with anti-sliding blocks located inside the first slot 3. The anti-sliding blocks and the limiting rod 4 are an integrated structure, and the lower end thereof has anti-slip grooves, which can improve the limiting effect on the sandpaper.

[0028] If the friction between the driving block 14 and the driven block 13 is too large, it will affect the smoothness of the driving block 14 and the driven block 13 when they are matched. A plurality of balls are provided on both sides of the driving block 14 to contact the driven block 13. The plurality of balls can reduce the friction between the driving block 14 and the driven block 13, and improve the smoothness of the driving block 14 and the driven block 13 when they are matched.

[0029] Furthermore, the driving block 14 may be of an isosceles trapezoidal structure, and the driven block 13 may be of a right-angled trapezoidal structure.

[0030] In the description herein, it should be noted that relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A sandpaper fixing mechanism for a sandpaper polishing device, comprising a polishing seat (1), characterized in that: Two limit seats (2) and a tensioning frame (6) are symmetrically arranged at both ends of the grinding seat (1), the limit seat (2) is provided with a first empty slot (3), and two tensioning shafts (7) are symmetrically arranged on the tensioning frame (6), the two ends of the tensioning shaft (7) are rotatably connected to the tensioning frame (6), and a second empty slot (8) is provided between the two tensioning shafts (7), a limit rod (4) is provided above the limit seat (2), the two ends of the limit rod (4) can pass through the limit seat (2) and be inserted into the inside of the first empty slot (3), the upper end of the limit seat (2) is rotatably provided with a first screw rod (5) passing through the limit rod (4), and the first screw rod (5) is threadedly connected to the limit rod (4), a plurality of cavities (10) are provided at both ends of the grinding seat (1), a spring is provided inside the cavity (10), and the two ends of the tensioning frame (6) are provided with a plurality of cavities (10). The end is provided with a support rod (9) inserted into the cavity (10) and connected to the spring, two sliding grooves (11) are symmetrically provided at both ends of the grinding seat (1), the middle part of the tensioning frame (6) is provided with an L-shaped push plate (12) inserted into the grinding seat (1) and passing through the sliding groove (11), the upper end of the L-shaped push plate (12) is fixedly provided with a driven block (13), and the driven block (13) can slide on the upper end of the grinding seat (1), the upper end of the grinding seat (1) is provided with a driving block (14) and a plurality of guide rods (15) passing through the driving block (14), the upper end of the grinding seat (1) is rotatably provided with a second screw (16) passing through the driving block (14), the second screw (16) is threadedly connected to the driving block (14), both sides of the driving block (14) are in contact with the inner side of the driven block (13), and the contact surfaces are all inclined surfaces.

2. The sandpaper fixing mechanism for sandpaper polishing equipment according to claim 1, characterized in that: The plurality of guide rods (15) respectively penetrate the four corners of the driving block (14).

3. The sandpaper fixing mechanism for sandpaper polishing equipment according to claim 2, characterized in that: The upper end of the first screw rod (5) and the upper end of the second screw rod (16) are both provided with a toggle block.

4. The sandpaper fixing mechanism for sandpaper polishing equipment according to claim 3, characterized in that: Anti-sliding blocks located inside the first slot (3) are provided at both ends of the limiting rod (4).

5. The sandpaper fixing mechanism for sandpaper polishing equipment according to claim 4, characterized in that: A plurality of balls contacting the driven block (13) are provided on both sides of the driving block (14).

6. The sandpaper fixing mechanism for sandpaper polishing equipment according to claim 5, characterized in that: The driving block (14) adopts an isosceles trapezoidal structure, and the driven block (13) adopts a right-angled trapezoidal structure.

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