Quick changing mechanism for grinding wheel of grinding machine

Abstract

The utility model relates to the technical field of grinding machines, and discloses a grinding machine grinding wheel quick-changing mechanism which comprises a grinding wheel body, a mounting cylinder and a fixing disc, a fixed conical cylinder is fixedly connected to the front side of the interior of the mounting cylinder, a movable conical cylinder is slidably connected to the interior of the fixed conical cylinder, two through openings are formed in the exterior of the movable conical cylinder, and the two through openings are communicated with the fixing disc. A clamping ball is movably connected to the inner wall of the through opening, a strong magnetic conical block is slidably connected to the interior of the movable conical cylinder, a fixing rod is fixedly connected to the middle of the rear end of the fixing disc, a clamping groove is formed in the middle of the fixing rod, and a strong magnetic adjusting block is rotatably connected to the rear end of the interior of the mounting cylinder; and the exterior of the strong magnetic adjusting block is fixedly connected with a telescopic conical cylinder. According to the utility model, the grinding wheel can be conveniently and quickly replaced and mounted, the working efficiency of mounting the grinding wheel is effectively improved, in addition, the grinding wheel body is protected through the position-adjustable protective cover, and meanwhile, additional supporting and fixing effects are provided for the quick-change mechanism.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and in particular to a quick-change mechanism for grinding wheels. Background Technology

[0002] A grinding machine is a mechanical device used for grinding workpieces. In operation, the tool to be processed is clamped on the grinding machine, and a grinding wheel is used to grind the tool. The grinding wheel is the main tool used for grinding on a grinding machine; it is a porous object composed of abrasive and bonding agent.

[0003] The grinding wheel is mainly mounted on the grinding wheel spindle or directly on the grinding head motor shaft. Depending on the material and hardness of the workpiece being ground, different grinding wheels need to be replaced, and the grinding wheel must also be replaced after it wears down to a certain extent.

[0004] During the installation and replacement of grinding wheels, tightening them requires specialized tools and a specific sequence of tightening of the nuts to ensure safety and stability. This process is time-consuming, especially in multi-variety, small-batch production, where grinding wheel replacement significantly impacts the grinding machine's efficiency. Furthermore, the lack of effective protection and support structures during grinding wheel operation can easily lead to safety hazards, damage to the grinding wheel, and reduced machining accuracy. Therefore, to address these issues, a quick-change mechanism for grinding wheels is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick-change mechanism for grinding wheels, which aims to improve the problems of difficult grinding wheel disassembly and lack of protective support structure in the prior art, which leads to easy snow removal safety hazards.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick-change mechanism for a grinding wheel includes a grinding wheel body, a mounting cylinder, and a fixed plate. A fixed cone is fixedly connected to the front side of the interior of the mounting cylinder. A movable cone is slidably connected to the interior of the fixed cone. Two openings are provided on the exterior of the movable cone. A retaining ball is movably connected to the inner wall of the opening. A strong magnetic cone block is slidably connected to the interior of the movable cone. A fixed rod is fixedly connected to the middle of the rear end of the fixed plate. A retaining groove is provided in the middle of the fixed rod. A strong magnetic adjusting block is rotatably connected to the rear end of the interior of the mounting cylinder. A telescopic cone is fixedly connected to the exterior of the strong magnetic adjusting block. An arc groove is provided at the rear end of the exterior of the mounting cylinder. A retaining hole is provided in the middle of the front side of the mounting cylinder. A sleeve is detachably connected to the exterior of the front end of the grinding wheel body. A protective component for protecting the grinding wheel body is provided on the exterior of the sleeve.

[0008] As a further description of the above technical solution:

[0009] The protective component includes a protective cover, the inner wall of the middle part of the protective cover is fixedly connected to the outer front end of the sleeve, the two ends of the sleeve away from the protective cover are fixedly connected to connecting blocks, the middle of the two connecting blocks is slidably connected to a locking post, the bottom end of the locking post is fixedly connected to a connecting shaft, the outside of the connecting shaft is rotatably connected to a lever clamp, the top end of the locking post is provided with a threaded groove, and the outside of the threaded groove is threaded with a bolt;

[0010] As a further description of the above technical solution:

[0011] A spring is sleeved on the top of the locking post, the top of the spring is movably connected to the bottom of the bolt, and the bottom of the spring is fixedly connected to the top of the connecting block.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the middle part of the grinding wheel body engages with the outside of the fixed rod, the outside of the slot engages with the adjacent side of the two locking balls, and the front side of the movable cone is in contact with the outside of the two locking balls.

[0014] As a further description of the above technical solution:

[0015] The fixed rod is externally slidably connected to the inner wall of the card hole, externally slidably connected to the middle part of the fixed cone, externally slidably connected to the middle part of the movable cone, and externally slidably connected to the middle part of the strong magnetic cone block.

[0016] As a further description of the above technical solution:

[0017] A gasket is fixedly connected to the front side of the mounting cylinder, and the rear side of the grinding wheel body is in contact with the front side of the gasket;

[0018] As a further description of the above technical solution:

[0019] The front side of the grinding wheel body is in contact with the rear side of the fixed plate, and the outer side of the telescopic cone is engaged with the inner wall of the arc groove.

[0020] As a further description of the above technical solution:

[0021] The protective cover is fitted over the outside of the grinding wheel body, and the outside of the connecting shaft engages with the outside of the sleeve.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the grinding wheel body is sleeved on the outside of the fixed rod, and then the fixed rod is inserted into the movable cone and the strong magnetic cone. With the rotation of the strong magnetic adjustment block, the positive and negative poles of the strong magnetic block between the strong magnetic adjustment block and the strong magnetic cone are oppositely aligned. This causes the strong magnetic cone to be magnetically pushed and squeezed by the strong magnetic adjustment block to engage the locking ball, thus facilitating the quick replacement and installation of the grinding wheel and effectively improving the work efficiency of grinding wheel installation.

[0024] 2. In this utility model, by placing the sleeve around the outside of the grinding wheel body, the protective cover covers the outside of the grinding wheel body. Then, by turning the lever and locking it, the opening of the sleeve is reduced, and the protective cover is fixed. This achieves the goal of protecting the grinding wheel body while providing additional support and fixation for the quick-change mechanism through the adjustable protective cover. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a quick-change mechanism for grinding wheels in a grinding machine, as proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the strong magnetic adjustment block of the quick-change mechanism for grinding wheels in a grinding machine, as proposed in this utility model.

[0027] Figure 3 An exploded view of the movable cone of a quick-change mechanism for grinding wheels in a grinding machine, as proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the hoop of the quick-change mechanism for grinding wheels of a grinding machine proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the lever clamp of a quick-change mechanism for grinding wheels in a grinding machine, as proposed in this utility model.

[0030] Legend:

[0031] 1. Grinding wheel body; 2. Mounting cylinder; 3. Fixed cone cylinder; 4. Movable cone cylinder; 5. Through port; 6. Clamping ball; 7. Strong magnetic cone block; 8. Fixed disc; 9. Fixed rod; 10. Clamping groove; 11. Strong magnetic adjusting block; 12. Telescopic cone cylinder; 13. Arc groove; 14. Clamping hole; 15. Shim; 16. Hoop; 17. Protective cover; 18. Connecting block; 19. Clamping post; 20. Connecting shaft; 21. Lever clamp; 22. Threaded groove; 23. Bolt; 24. Spring. Detailed Implementation

[0032] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a quick-change mechanism for a grinding wheel, comprising a grinding wheel body 1, a mounting cylinder 2, and a fixed disc 8. The grinding wheel body 1 is a circular disc structure and is the main component of the grinding machine for grinding operations. The mounting cylinder 2 is a cylindrical structure. A fixed cone cylinder 3 is fixedly connected to the front side of the interior of the mounting cylinder 2. A movable cone cylinder 4 is slidably connected to the interior of the fixed cone cylinder 3. The fixed cone cylinder 3 provides guidance and support for the movable cone cylinder 4, and holes are provided on both sides of the fixed cone cylinder 3 to enhance the fixation of the retaining ball 6. Two openings 5 ​​are provided on the exterior of the movable cone cylinder 4, providing space for the retaining ball 6 to move. The retaining ball 6 is movably connected to the inner wall of the opening 5, and the retaining ball 6 rotates at the opening 5.

[0034] refer to Figure 2 , Figure 3 The front side of the movable cone 4 contacts the outside of the two retaining balls 6. Under the push of the strong magnetic cone block 7, the movable cone 4 pushes the retaining balls 6 to roll and engage with the retaining groove 10 of the fixing rod 9, thereby fixing the grinding wheel body 1. The strong magnetic cone block 7 is slidably connected inside the movable cone 4. Under the action of the strong magnetic adjusting block 11, the strong magnetic cone block 7 slides inside the movable cone 4, pushing the movable cone 4, and thus pushing the retaining balls 6 to achieve fixation. The fixing rod 9 is fixedly connected to the middle of the rear end of the fixing plate 8. The fixing plate 8 is in contact with the front side of the grinding wheel body 1, providing a certain degree of fixation and support for the grinding wheel body 1.

[0035] The fixed rod 9 is externally slidably connected to the middle of the fixed cone 3, the middle of the movable cone 4, and the middle of the strong magnetic cone 7. The fixed plate 8 drives the fixed rod 9 through the fixed cone 3, the movable cone 4, and the strong magnetic cone 7, and it is engaged and fixed with the retaining ball 6 in the gap between the movable cone 4 and the strong magnetic cone 7. The inner wall of the middle part of the grinding wheel body 1 engages with the outer part of the fixed rod 9. The middle part of the fixed rod 9 is provided with a retaining groove 10. The fixed rod 9 passes through the grinding wheel body 1 and is fixed by the retaining groove 10 on the concave surface of the middle part. The outer part of the retaining groove 10 engages with the adjacent side of the two retaining balls 6, and the concave surface of the retaining groove 10 matches the retaining balls 6.

[0036] A strong magnetic adjustment block 11 is rotatably connected to the rear end of the mounting cylinder 2. The strong magnetic adjustment block 11 adjusts its relative position to the strong magnetic cone 7 by rotating, thereby changing the magnetic field and controlling the strong magnetic cone 7. A telescopic cone 12 is fixedly connected to the outside of the strong magnetic adjustment block 11. The outside of the telescopic cone 12 engages with the inner wall of the arc groove 13. The telescopic cone 12 has an internal elastic component that allows for telescopic movement. The engagement of the telescopic cone 12 with the inner wall of the arc groove 13 via an external conical block limits the angle of the strong magnetic adjustment block 11. An arc groove 13 is formed at the rear end of the mounting cylinder 2, forming the side of the mounting cylinder 2, which allows the strong magnetic adjustment block 11 to rotate 90 degrees.

[0037] A locking hole 14 is provided in the middle of the front side of the mounting cylinder 2. The outer side of the fixing rod 9 is slidably connected to the inner wall of the locking hole 14, which provides a channel for the fixing rod 9 to pass through the mounting cylinder 2. A gasket 15 is fixedly connected to the front side of the mounting cylinder 2. The rear side of the grinding wheel body 1 is in contact with the front side of the gasket 15, and the gasket 15 provides cushioning and protection for the grinding wheel body 1. The front side of the grinding wheel body 1 is in contact with the rear side of the fixing disc 8, and the fixing disc 8 locks the grinding wheel body 1 by engaging the fixing rod 9.

[0038] refer to Figure 4 , Figure 5 A sleeve 16 is detachably connected to the front end of the grinding wheel body 1, providing a connection base for the protective cover 17. A protective assembly for protecting the grinding wheel body 1 is provided outside the sleeve 16. The protective assembly includes the protective cover 17, which is fitted over the outside of the grinding wheel body 1. The protective cover 17 has a semi-circular shape and protects the grinding wheel body 1. The inner wall of the protective cover 17 is fixedly connected to the outer front end of the sleeve 16, thus securing the protective cover 17.

[0039] Both ends of the sleeve 16 furthest from the protective cover 17 are fixedly connected to connecting blocks 18, which provide connection and support for the locking post 19. The locking post 19 is slidably connected to the middle of the two connecting blocks 18. The locking post 19, pulled by the connecting shaft 20, brings the connecting blocks 18 at both ends of the sleeve 16 closer together, thereby reducing the opening of the sleeve 16. The bottom end of the locking post 19 is fixedly connected to the connecting shaft 20. The connecting shaft 20, through eccentric fixing, pulls the locking post 19 to lock the sleeve 16. The outside of the connecting shaft 20 engages with the outside of the sleeve 16. A lever locking element 21 is rotatably connected to the outside of the connecting shaft 20. By moving the lever locking element 21, the sleeve 16 is locked, providing additional support and fixation for the quick-change mechanism.

[0040] The top of the locking post 19 is provided with a threaded groove 22, and a bolt 23 is threadedly connected to the outside of the threaded groove 22. The bolt 23 rotates outside the threaded groove 22 to adjust the size of the opening of the sleeve 16. A spring 24 is sleeved on the outside of the top of the locking post 19. The top of the spring 24 is movably connected to the bottom of the bolt 23, and the bottom of the spring 24 is fixedly connected to the top of the top connecting block 18. The spring 24 provides a certain elastic force to the locking post 19 to ensure the connection stability of the locking post 19.

[0041] Working principle: In use, the grinding wheel body 1 is fitted over the fixed rod 9, and the fixed rod 9 is then inserted into the movable cone 4 and the strong magnetic cone 7 of the mounting cylinder 2 through the fixed plate 8. The telescopic cone 12 is pulled to extend and retract, unlocking and engaging with the arc groove 13, which drives the strong magnetic adjusting block 11 to rotate. This causes the positive and negative poles of the strong magnetic blocks of the strong magnetic adjusting block 11 and the strong magnetic cone 7 to be opposite, generating a repulsive force between them. The strong magnetic adjusting block 11 then pushes the strong magnetic cone 7 to slide inside the movable cone 4 through the repulsive force. The movable cone 4 then pushes the locking ball 6 to roll inside the movable cone 4, finally engaging with the opening 5 of the movable cone 4 and the external opening of the fixed cone 3, and simultaneously engaging with the locking groove 10 of the fixed rod 9. This locks the fixed rod 9 in the middle of the locking ball 6, allowing for quick installation and fixation of the grinding wheel body 1. When the grinding wheel body 1 needs to be replaced, simply pull the telescopic cone 12 to rotate the strong magnetic adjustment block 11, and adjust the positive and negative poles of the strong magnetic block between the strong magnetic adjustment block 11 and the strong magnetic cone block 7 to correspond.

[0042] After the grinding wheel body 1 is installed, the sleeve 16 is fitted onto the outside of the protective cover 17 and locked by turning the lever clamp 21. The lever clamp 21 pulls the clamp post 19 through the eccentrically fixed connecting shaft 20, causing the clamp post 19 to pull the connecting blocks 18 fixed at both ends of the sleeve 16 closer to each other. Finally, the tapered clamp head of the connecting shaft 20 fits against the outside of the sleeve 16, thereby locking the sleeve 16 and reducing the opening of the sleeve 16. This protects the grinding wheel body 1 while providing additional support and fixation for the quick-change mechanism.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 quick-change mechanism for a grinding wheel, comprising a grinding wheel body (1), a mounting cylinder (2), and a fixed disc (8), characterized in that: A fixed cone (3) is fixedly connected to the front of the inner side of the mounting cylinder (2). A movable cone (4) is slidably connected inside the fixed cone (3). Two openings (5) are opened on the outside of the movable cone (4). A retaining ball (6) is movably connected to the inner wall of the opening (5). A strong magnetic cone block (7) is slidably connected inside the movable cone (4). A fixing rod (9) is fixedly connected to the middle of the rear end of the fixing plate (8). A retaining groove is provided in the middle of the fixing rod (9). 10) The inner rear end of the mounting cylinder (2) is rotatably connected to a strong magnetic adjustment block (11), and the outside of the strong magnetic adjustment block (11) is fixedly connected to a telescopic cone (12). The outer rear end of the mounting cylinder (2) is provided with an arc groove (13), and the middle of the front side of the mounting cylinder (2) is provided with a locking hole (14). The front end of the grinding wheel body (1) is detachably connected to a sleeve (16), and the outside of the sleeve (16) is provided with a protective component to protect the grinding wheel body (1).

2. The quick-change mechanism for grinding wheels of a grinding machine according to claim 1, characterized in that: The protective assembly includes a protective cover (17), the inner wall of the middle part of the protective cover (17) is fixedly connected to the outer front end of the sleeve (16), and the two ends of the sleeve (16) away from the protective cover (17) are fixedly connected to connecting blocks (18). The middle part of the two connecting blocks (18) is slidably connected to a locking post (19). The bottom end of the locking post (19) is fixedly connected to a connecting shaft (20). The outside of the connecting shaft (20) is rotatably connected to a lever clamp (21). The top end of the locking post (19) is provided with a threaded groove (22), and the outside of the threaded groove (22) is threaded with a bolt (23).

3. The quick-change mechanism for grinding wheels of a grinding machine according to claim 2, characterized in that: A spring (24) is sleeved on the top of the locking post (19). The top of the spring (24) is movably connected to the bottom of the bolt (23), and the bottom of the spring (24) is fixedly connected to the top of the connecting block (18).

4. The quick-change mechanism for grinding wheels of a grinding machine according to claim 1, characterized in that: The inner wall of the grinding wheel body (1) engages with the outside of the fixed rod (9), the outside of the slot (10) engages with the adjacent side of the two ball bearings (6), and the front side of the movable cone (4) contacts the outside of the two ball bearings (6).

5. A quick-change mechanism for grinding wheels on a grinding machine according to claim 1, characterized in that: The fixed rod (9) is externally slidably connected to the inner wall of the card hole (14), the fixed rod (9) is externally slidably connected to the middle part of the fixed cone (3), the fixed rod (9) is externally slidably connected to the middle part of the movable cone (4), and the fixed rod (9) is externally slidably connected to the middle part of the strong magnetic cone (7).

6. A quick-change mechanism for grinding wheels on a grinding machine according to claim 1, characterized in that: A gasket (15) is fixedly connected to the front side of the mounting cylinder (2), and the rear side of the grinding wheel body (1) is in contact with the front side of the gasket (15).

7. A quick-change mechanism for grinding wheels on a grinding machine according to claim 1, characterized in that: The front side of the grinding wheel body (1) is in contact with the rear side of the fixed plate (8), and the outside of the telescopic cone (12) is engaged with the inner wall of the arc groove (13).

8. A quick-change mechanism for grinding wheels on a grinding machine according to claim 2, characterized in that: The protective cover (17) is fitted over the outside of the grinding wheel body (1), and the outside of the connecting shaft (20) engages with the outside of the sleeve (16).

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