Quick locking assembly for polishing pad

Abstract

The utility model relates to the technical field of polishing pads, and discloses a polishing pad quick locking assembly which comprises a mounting shell, a rotating shaft is fixedly connected to one side of the mounting shell, a connecting sleeve is arranged in the mounting shell, a polishing disc is fixedly connected to one side of the connecting sleeve, and a locking assembly is arranged outside the connecting sleeve. The locking assembly comprises two grooves, the two grooves are formed in the two sides of the connecting sleeve, clamping grooves are formed in the middles of the two sides of the connecting sleeve respectively, the two clamping grooves and the two grooves are arranged in a staggered mode, and through grooves are formed in the two sides of the mounting shell. The polishing pad can be conveniently and rapidly installed and locked at the output end of the polishing machine, the utilization rate of screws is reduced, the disassembly and assembly steps are simplified, the efficiency is improved, the replacement time is saved, meanwhile, the fastening performance of the polishing pad after locking is enhanced, shaking and collision caused by high-speed rotation of the polishing machine are reduced, and the polishing effect is improved. And the service life of the polishing pad and the locking assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing pads, in particular to a polishing pad quick locking assembly. Background Art

[0002] Grinding pads are the operating tools required when using sandpaper to grind workpieces. They are divided into manual grinding pads and special trays for grinders (i.e., grinder gaskets). Manual grinding pads are usually made of different materials, including hard rubber, medium elastic rubber, and wood boards. The choice of these materials depends on the specific needs of the grinding work and the characteristics of the workpiece. The flexibility and durability of manual grinding pads enable them to adapt to various manual grinding scenarios and ensure the smooth progress of the grinding work. Grinding machine gaskets are widely used in various grinding and polishing jobs, such as automotive body painting, metal processing, wood processing and other fields.

[0003] When using a traditional grinding pad, a tool is usually used to screw multiple screws to install the grinding pad on the output end of the grinder. Although the tightness is high, the installation process is tedious and complicated. The grinding pad is easily damaged after long-term grinding, and thus needs to be replaced frequently. When replacing, it is necessary to find a tool to screw the screws to remove the grinding pad from the output end of the grinder. The disassembly process is relatively tedious, which wastes disassembly and assembly time, reduces disassembly and assembly efficiency, and is not convenient for quick locking when replacing the grinding pad. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a grinding pad quick locking assembly.

[0005] In order to achieve the above object, the utility model adopts the following technical solution: a quick locking assembly for a grinding pad, comprising a mounting shell, one side of which is fixedly connected to a rotating shaft, an interior of the mounting shell is provided with a connecting sleeve, one side of the connecting sleeve is fixedly connected to a grinding disc, and an exterior of the connecting sleeve is provided with a locking assembly;

[0006] The locking assembly includes two grooves, which are opened on both sides of the connecting sleeve. A card slot is opened in the middle of both sides of the connecting sleeve. The two card slots and the two grooves are staggered. A through groove is opened on both sides of the mounting shell, and an installation groove is opened inside the mounting shell.

[0007] As a further description of the above technical solution:

[0008] A two-way stud is rotatably connected inside the mounting slot, one end of the two-way stud is fixedly connected to a knob, the external thread of the two-way stud is connected to two moving blocks, and a threaded hole is opened inside the moving block.

[0009] As a further description of the above technical solution:

[0010] One side of the moving block is fixedly connected with a connecting block, one side of the mounting groove is provided with a sliding groove, and the two connecting blocks are slidably connected inside the sliding groove.

[0011] As a further description of the above technical solution:

[0012] A clamping block is fixedly connected to one side of the connecting block, and a limiting block is fixedly connected to the interior of the mounting shell.

[0013] As a further description of the above technical solution:

[0014] A fastening assembly is provided inside the clamping block. The fastening assembly includes a plurality of columnar grooves. The plurality of columnar grooves are opened inside the clamping block.

[0015] As a further description of the above technical solution:

[0016] A first limiting ring is fixedly connected to the interior of the cylindrical groove, and a spring is fixedly connected to the interior of the cylindrical groove.

[0017] As a further description of the above technical solution:

[0018] One end of the spring is fixedly connected to a fastening block, the outside of the fastening block is fixedly connected to a second limiting ring, and the second limiting ring is slidably connected to the inside of the cylindrical groove.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model increases the convenience of quick installation and locking of the grinding pad when it is installed at the output end of the grinder through the setting of the locking component, reduces the usage rate of screws, and eliminates the need to use external tools to tighten the screws, simplifies the disassembly and assembly steps, improves the efficiency of disassembly and assembly of the grinding pad, and thus saves the operation time of replacing the grinding pad.

[0021] 2. The utility model increases the fastening effect of the grinding pad after locking by setting the fastening component, which helps to improve the fastness of the grinding pad installed on the outside of the locking component. At the same time, it also reduces the phenomenon that the grinding pad shakes outside the locking component and collides with the locking component due to the high-speed rotation of the grinder, causing damage to the structures of both parties, which helps to extend the service life of the grinding pad and the locking component. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the connecting sleeve structure proposed by the utility model;

[0024] Figure 3This is a schematic diagram of the through-groove structure proposed by the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the installation shell proposed by the utility model;

[0026] Figure 5 This is a schematic diagram of the limit block structure proposed by the utility model;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the card block proposed in the present utility model.

[0028] Legend:

[0029] 1. Mounting shell; 2. Rotating shaft; 3. Connecting sleeve; 4. Grinding disc; 5. Groove; 6. Clamping slot; 7. Through slot; 8. Mounting slot; 9. Two-way stud; 10. Knob; 11. Moving block; 12. Threaded hole; 13. Connecting block; 14. Slide; 15. Clamping block; 16. Limit block; 17. Columnar groove; 18. First limiting ring; 19. Spring; 20. Fastening block; 21. Second limiting ring. DETAILED DESCRIPTION

[0030] 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.

[0031] As attached Figure 1-5 As shown, the utility model provides an embodiment: a quick-locking assembly for a grinding pad, comprising a mounting shell 1, a rotating shaft 2 fixedly connected to one side of the mounting shell 1, a connecting sleeve 3 provided inside the mounting shell 1, a grinding disc 4 fixedly connected to one side of the connecting sleeve 3, a locking assembly provided outside the connecting sleeve 3, and the connecting sleeve 3 being easily connected to the mounting shell 1;

[0032] The locking assembly includes two grooves 5, which are provided on both sides of the connecting sleeve 3. A card slot 6 is provided in the middle of both sides of the connecting sleeve 3. The two card slots 6 are staggered with the two grooves 5. A through groove 7 is provided on both sides of the mounting shell 1. An installation groove 8 is provided inside the mounting shell 1. The groove 5 is used to be clamped on the outside of the limit block 16, and the card slot 6 facilitates the engagement of the card block 15. The through groove 7 helps to penetrate the card block 15, thereby improving the stability of the card block 15 after it is clamped into the inside of the card slot 6. The installation slot 8 is used to install the bidirectional stud 9.

[0033] As attached Figure 4As shown, the internal rotation connection of the mounting groove 8 is connected with a two-way stud 9, one end of the two-way stud 9 is fixedly connected with a knob 10, the external thread of the two-way stud 9 is connected with two moving blocks 11, and the two sides of the outside of the two-way stud 9 are provided with threads in opposite directions. The knob 10 is used to screw the two-way stud 9 to rotate, and the moving block 11 is used to drive the clamping block 15 to move through the connecting block 13.

[0034] As attached Figure 6 As shown, a threaded hole 12 is opened inside the moving block 11, and a connecting block 13 is fixedly connected to one side of the moving block 11. The threaded hole 12 corresponds to the threads at both ends of the two-way stud 9, and the connecting block 13 slides inside the slide groove 14 to facilitate improving the stability of the moving block 11 when moving.

[0035] As attached Figure 4 As shown, a slide groove 14 is provided on one side of the mounting groove 8, and two connecting blocks 13 are slidably connected inside the slide groove 14. A clamping block 15 is fixedly connected to one side of the connecting block 13, and a limiting block 16 is fixedly connected inside the mounting shell 1. The slide groove 14 facilitates the movement of the connecting block 13, so that the moving block 11 is connected to the clamping block 15. The clamping block 15 facilitates the limiting and fixing of the connecting sleeve 3 installed inside the mounting shell 1, thereby facilitating the locking of the connecting sleeve 3.

[0036] As attached Figure 6 As shown, a fastening assembly is provided inside the block 15, and the fastening assembly includes a plurality of cylindrical grooves 17, and the plurality of cylindrical grooves 17 are opened inside the block 15. A first limiting ring 18 is fixedly connected to the inside of the cylindrical groove 17, and a spring 19 is fixedly connected to the inside of the cylindrical groove 17. One end of the spring 19 is fixedly connected to a fastening block 20, and a second limiting ring 21 is fixedly connected to the outside of the fastening block 20. The second limiting ring 21 is slidably connected to the inside of the cylindrical groove 17. The cylindrical groove 17 is convenient for installing the spring 19, which limits the spring 19 and reduces deformation. The fastening block 20 is convenient for resting on the inner wall of the through-groove 7, thereby improving the fastening of the block 15 after it is stuck in the through-groove 7. The second limiting ring 21 is convenient for preventing the fastening block 20 from sliding out of the inside of the cylindrical groove 17 under the limitation of the first limiting ring 18.

[0037] Working principle: When installing and locking the grinding disc 4, first insert the grinding disc 4 with the connecting sleeve 3 into the interior of the mounting shell 1, so that the two grooves 5 are stuck on the outside of the limit block 16, and then turn the knob 10. When the knob 10 drives the two-way stud 9 to rotate, the two moving blocks 11 are driven to slide inside the mounting groove 8 under the action of the opposite direction threads at both ends of the two-way stud 9. When the moving block 11 slides, it drives the connecting block 13 to slide inside the slide groove 14, thereby driving the clamping block 15 to first be stuck in the clamping grooves 6 on both sides of the connecting sleeve 3 and then pass through, and be stuck in the inside of the through grooves 7 on both sides of the mounting shell 1. When the knob 10 is tightened, the connecting sleeve 3 can quickly drive the grinding disc 4 to be locked;

[0038] After the clamping block 15 passes through the through-groove 7, the fastening block 20 will be squeezed by the inner wall of the through-groove 7 during the penetration process, so that the fastening block 20 will retract into the interior of the columnar groove 17, and the fastening block 20 will be squeezed to press down the spring 19. When the spring 19 is squeezed and generates elastic force, it pushes the fastening block 20 to tightly press against the inner wall of the through-groove 7, thereby improving the fastening of the clamping block 15 when it is clamped into the through-groove 7. At the same time, when the grinder rotates at high speed, the rotational force drives the clamping block 15 to collide with the through-groove 7. Under the action of the spring 19 pushing the fastening block 20, the outer wall of the clamping block 15 and the inner wall of the through-groove 7 are buffered and protected.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-locking assembly for a grinding pad, comprising a mounting shell (1), a rotating shaft (2) fixedly connected to one side of the mounting shell (1), a connecting sleeve (3) provided inside the mounting shell (1), a grinding disc (4) fixedly connected to one side of the connecting sleeve (3), and characterized in that: A locking assembly is provided on the outside of the connecting sleeve (3); The locking assembly comprises two grooves (5), the two grooves (5) being provided on both sides of the connecting sleeve (3), a card slot (6) being provided in the middle of both sides of the connecting sleeve (3), the two card slots (6) and the two grooves (5) being arranged in a staggered manner, a through slot (7) being provided on both sides of the mounting shell (1), and a mounting slot (8) being provided inside the mounting shell (1).

2. The grinding pad quick locking assembly according to claim 1, characterized in that: A bidirectional stud (9) is rotatably connected inside the mounting groove (8), one end of the bidirectional stud (9) is fixedly connected to a knob (10), and the external threads of the bidirectional stud (9) are connected to two moving blocks (11), and a threaded hole (12) is provided inside the moving block (11).

3. The grinding pad quick locking assembly according to claim 2, characterized in that: A connecting block (13) is fixedly connected to one side of the moving block (11), a sliding groove (14) is provided on one side of the installation groove (8), and the two connecting blocks (13) are slidably connected inside the sliding groove (14).

4. The grinding pad quick locking assembly according to claim 3, characterized in that: A clamping block (15) is fixedly connected to one side of the connecting block (13), and a limiting block (16) is fixedly connected inside the mounting shell (1).

5. The grinding pad quick locking assembly according to claim 4, characterized in that: A fastening assembly is provided inside the clamping block (15), and the fastening assembly includes a plurality of columnar grooves (17). The plurality of columnar grooves (17) are opened inside the clamping block (15).

6. The grinding pad quick locking assembly according to claim 5, characterized in that: A first limiting ring (18) is fixedly connected to the interior of the columnar groove (17), and a spring (19) is fixedly connected to the interior of the columnar groove (17).

7. The grinding pad quick locking assembly according to claim 6, characterized in that: One end of the spring (19) is fixedly connected to a fastening block (20), the outside of the fastening block (20) is fixedly connected to a second limiting ring (21), and the second limiting ring (21) is slidably connected to the inside of the columnar groove (17).

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