Quick replacement device for grinding wheel of grinding machine tool

Abstract

The utility model relates to the technical field of grinding machine tools, and discloses a grinding machine tool grinding wheel quick replacement device which comprises a driving mechanism, a main shaft is fixedly connected to an output shaft of the driving mechanism, a grinding wheel body sleeves the outer wall of the main shaft, a plurality of sliding grooves are formed in the inner wall of the main shaft, and clamping columns are slidably connected to the inner walls of the sliding grooves; the end, facing the inner cavity of the main shaft, of each clamping column is fixedly connected with a semicircular block, the outer wall of each clamping column is sleeved with a first spring, a plug pin is further connected to the inner wall of the main shaft in an inserted mode, a clamping groove is formed in the outer wall of each plug pin, and a locking assembly facilitating disassembly and assembly of each plug pin is installed on the outer wall of the main shaft. Through mutual cooperation of the inserted pin, the sliding groove, the clamping column, the semicircular block, the first spring, the limiting hole and the locking assembly, the grinding wheel body can be rapidly and conveniently disassembled and assembled, and compared with the prior art, the replacement efficiency is improved, rapid and accurate replacement of the grinding wheel is achieved, and the manual operation time is shortened.

Description

Technical Field

[0001] This application relates to the technical field of grinding machines, and particularly to a device for quickly replacing the grinding wheel of a grinding machine. Background Art

[0002] In the mechanical processing industry, grinding machines are one of the indispensable processing equipment. However, when the grinding wheel needs to be replaced after wear, the traditional manual replacement method not only takes a long time, but also has complex operations, which easily affects the processing efficiency and accuracy. Especially in large-scale or high-precision processing, the quick replacement of the grinding wheel is particularly important. Therefore, there is an urgent need in the market for a device that can replace the grinding wheel efficiently and conveniently.

[0003] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0004] In order to solve the problems that the traditional manual replacement method not only takes a long time, but also has complex operations and easily affects the processing efficiency and accuracy, this application provides a device for quickly replacing the grinding wheel of a grinding machine.

[0005] The device for quickly replacing the grinding wheel of a grinding machine provided by this application adopts the following technical solutions:

[0006] A device for quickly replacing the grinding wheel of a grinding machine includes a driving mechanism. The output shaft of the driving mechanism is fixedly connected with a main shaft. The outer wall of the main shaft is sleeved with a grinding wheel body. A plurality of limiting holes are evenly arranged in a circumferential array at equal intervals on the inner wall of the grinding wheel body. A plurality of sliding grooves are arranged on the inner wall of the main shaft. The plurality of sliding grooves correspond to the plurality of limiting holes. A clamping column is slidably connected to the inner wall of the sliding groove. One end of the clamping column facing the inner cavity of the main shaft is fixedly connected with a semi-circular block. The outer diameter of the semi-circular block is adapted to the inner diameter of the sliding groove. A first spring is sleeved on the outer wall of the clamping column. One end of the first spring is fixedly connected to the inner wall of the sliding groove, and the other end is fixedly connected to the outer wall of the semi-circular block. The end of the clamping column away from the semi-circular block penetrates the main shaft and is inserted into the limiting hole in a matching manner. A plug pin is also inserted into the inner wall of the main shaft. A clamping groove is arranged on the outer wall of the plug pin. A locking component for facilitating the disassembly and assembly of the plug pin is installed on the outer wall of the main shaft.

[0007] Preferably, a positioning disk is fixedly connected to the outer wall of the main shaft. A plurality of positioning holes are arranged on the outer wall of the positioning disk. The plurality of positioning holes are evenly distributed in a circumferential array at equal intervals. A plurality of positioning columns are fixedly connected to the outer wall of the grinding wheel body. The positioning columns are inserted into the positioning holes in a matching manner.

[0008] Preferably, the locking assembly includes two fixed columns fixedly connected to the outer wall of the top of the main shaft. An activity plate is slidably connected to the outer walls of the two fixed columns. The bottom outer wall of the activity plate is in contact with the top outer wall of the main shaft. A clamping block is fixedly connected to the middle section of the bottom outer wall of the activity plate. The bottom end of the clamping block penetrates through the main shaft and is adaptively clamped with the clamping groove.

[0009] Preferably, the locking assembly further includes two fixed frames fixedly connected to the outer wall of the top of the main shaft. The top ends of the two fixed columns are fixedly connected to the inner walls of the tops of the two fixed frames. A second spring is sleeved on the outer wall of the fixed column. The second spring is located between the fixed frame and the activity plate.

[0010] Preferably, a pull plate is fixedly connected to the middle section of the outer side of the activity plate away from the main shaft. The pull plate is designed in an inverted "L" shape.

[0011] Preferably, a rotating buckle is rotatably connected to the end of the bolt away from the inner cavity of the main shaft. Chamfering is performed on the edge of the end of the bolt located inside the main shaft.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] Through the mutual cooperation of the bolt, the chute, the clamping column, the semi-circular block, the first spring, the limiting hole and the locking assembly, the main body of the grinding wheel can be quickly and conveniently disassembled and assembled. Compared with the prior art, the replacement efficiency is improved, the rapid and accurate replacement of the grinding wheel is realized, and the manual operation time is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall schematic diagram of the application embodiment;

[0015] Figure 2 is the three-dimensional schematic diagram of the application embodiment;

[0016] Figure 3 is the first internal sectional view of the main shaft in the application embodiment;

[0017] Figure 4 is Figure 3 the enlarged schematic diagram of the structure at A in

[0018] Figure 5 is the second internal sectional view of the main shaft in the application embodiment;

[0019] Figure 6 is the third internal sectional view of the main shaft in the application embodiment;

[0020] Figure 7 is the three-dimensional diagram of the partial structure of the application embodiment;

[0021] Figure 8It is a schematic structural diagram of the grinding wheel body in the application embodiment.

[0022] Explanation of reference numerals: 1, driving mechanism; 2, main shaft; 3, positioning disc; 4, grinding wheel body; 5, positioning column; 6, positioning hole; 7, sliding groove; 8, clamping column; 9, semi-circular block; 10, first spring; 11, limiting hole; 12, plug pin; 13, rotating buckle; 14, clamping groove; 15, fixing column; 16, movable plate; 17, clamping block; 18, fixing frame; 19, second spring; 20, pulling plate. Detailed implementation manners

[0023] The following further elaborates on this application Figures 1-8 in further detail with reference to the accompanying drawings.

[0024] The embodiment of this application discloses a quick replacement device for the grinding wheel of a grinding machine. Referring to Figures 1-8 , a quick replacement device for the grinding wheel of a grinding machine includes a driving mechanism 1. The output shaft of the driving mechanism 1 is fixedly connected to a main shaft 2. The outer wall of the main shaft 2 is sleeved with a grinding wheel body 4. A plurality of limiting holes 11 are evenly arranged at equal intervals in a circumferential array on the inner wall of the grinding wheel body 4. A plurality of sliding grooves 7 are formed in the inner wall of the main shaft 2. The plurality of sliding grooves 7 correspond to the plurality of limiting holes 11. A clamping column 8 is slidably connected to the inner wall of the sliding groove 7. One end of the clamping column 8 facing the inner cavity of the main shaft 2 is fixedly connected to a semi-circular block 9. The outer diameter of the semi-circular block 9 is adapted to the inner diameter of the sliding groove 7. A first spring 10 is sleeved on the outer wall of the clamping column 8. One end of the first spring 10 is fixedly connected to the inner wall of the sliding groove 7, and the other end is fixedly connected to the outer wall of the semi-circular block 9. The end of the clamping column 8 away from the semi-circular block 9 penetrates the main shaft 2 and is inserted into the limiting hole 11 in an adapted manner. A plug pin 12 is also inserted into the inner wall of the main shaft 2. A clamping groove 14 is formed in the outer wall of the plug pin 12. A locking assembly for facilitating the disassembly and assembly of the plug pin 12 is installed on the outer wall of the main shaft 2.

[0025] The outer wall of the main shaft 2 is fixedly connected to a positioning disc 3. A plurality of positioning holes 6 are formed in the outer wall of the positioning disc 3. The plurality of positioning holes 6 are evenly distributed at equal intervals in a circumferential array. A plurality of positioning columns 5 are fixedly connected to the outer wall of the grinding wheel body 4. The positioning columns 5 are inserted into the positioning holes 6 in an adapted manner.

[0026] The locking assembly includes two fixing columns 15 fixedly connected to the outer wall of the top of the main shaft 2. The outer walls of the two fixing columns 15 are slidably connected to a movable plate 16. The bottom outer wall of the movable plate 16 is in contact with the top outer wall of the main shaft 2. A clamping block 17 is fixedly connected to the middle section of the bottom outer wall of the movable plate 16. The bottom end of the clamping block 17 penetrates the main shaft 2 and is clamped with the clamping groove 14 in an adapted manner.

[0027] The locking assembly further includes two fixing brackets 18 fixedly connected to the outer wall of the top of the main shaft 2. The top ends of the two fixing columns 15 are fixedly connected to the inner wall of the top of the two fixing brackets 18. A second spring 19 is sleeved on the outer wall of the fixing column 15. The second spring 19 is located between the fixing bracket 18 and the movable plate 16.

[0028] A pull plate 20 is fixedly connected to the outer wall of the middle section on the side of the movable plate 16 away from the main shaft 2. The pull plate 20 is designed in an inverted "L" shape.

[0029] One end of the plug pin 12 away from the inner cavity of the main shaft 2 is rotatably connected to a rotating buckle 13. The edge of the end of the plug pin 12 located inside the main shaft 2 is chamfered.

[0030] The implementation principle of a rapid grinding wheel replacement device for a grinding machine in an embodiment of the present application is as follows: The driving mechanism 1 is installed on the machine tool and is used to drive the grinding wheel body 4 to rotate at a high speed. When the grinding wheel body 4 needs to be installed, the grinding wheel body 4 can be directly sleeved on the main shaft 2 and the grinding wheel body 4 is made to fit with the positioning disk 3. At this time, a plurality of positioning columns 5 on the outer wall of the grinding wheel body 4 are inserted into a plurality of positioning holes 6 on the outer wall of the positioning disk 3, playing a role of pre-positioning. This can not only prevent the grinding wheel body 4 from shifting on the main shaft 2 but also enable a plurality of limiting holes 11 to correspond to the sliding grooves 7 on the inner wall of the main shaft 2, facilitating subsequent installation;

[0031] Then, the plug pin 12 is inserted into the inner cavity of the main shaft 2. Furthermore, through the chamfer at the edge of the end of the plug pin 12, a plurality of semi-circular blocks 9 can be easily extruded outward. As the plug pin 12 enters the inner cavity of the main shaft 2, the outer wall thereof extrudes the semi-circular blocks 9 to shrink into the sliding grooves 7. At the same time, the semi-circular blocks 9 push the ends of a plurality of clamping columns 8 located outside the main shaft 2 to be inserted into a plurality of limiting holes 11 on the inner wall of the grinding wheel body 4, thereby locking the grinding wheel body 4. It should be noted that when the semi-circular blocks 9 push the clamping columns 8 outward, they will cooperate with the sliding grooves 7 to squeeze the first spring 10, causing the first spring 10 to deform and generate elastic force. At this time, the grinding wheel body 4 realizes preliminary fixation through the insertion of a plurality of positioning columns 5 into the positioning holes 6 and the clamping of a plurality of limiting holes 11 and a plurality of clamping columns 8;

[0032] When the plug pin 12 completely enters the main shaft 2, the end thereof rises to squeeze the bottom end of the clamping block 17. Refer to Figure 6, the chamfer at the end edge of the bolt 12 presses against the inclined surface at the bottom of the clamping block 17, which can easily push the clamping block 17 upward. At this time, the clamping block 17 pushes the movable plate 16 to slide on the outer walls of the two fixed columns 15, and then the movable plate 16 presses the second spring 19, causing the second spring 19 to deform and generate elastic force. When the bolt 12 drives the card slot 14 to align with the clamping block 17, that is, after the bolt 12 completely enters the main shaft 2, the outer wall of the bolt 12 no longer presses the clamping block 17. Without force, the clamping block 17 is driven by the elastic force released by the second spring 19 to drive the movable plate 16 to descend and reset. The movable plate 16 then presses the clamping block 17 to move downward and engage with the card slot 14, thus locking the bolt 12 in the inner cavity of the main shaft 2. When the bolt 12 cannot be pulled out from the inside of the main shaft 2, its outer wall will always press against the multiple semi-circular blocks 9, thereby completely locking the grinding wheel body 4;

[0033] During disassembly, simply use the locking component to pull the pull plate 20 upward. The pull plate 20 drives the movable plate 16 to slide upward on the outer walls of the fixed columns 15. The movable plate 16 then pulls the clamping block 17 out of the card slot 14, releasing the lock on the bolt 12. Then, the bolt 12 is pulled out of the main shaft 2 by rotating the buckle 13, so that the bolt 12 no longer presses the multiple semi-circular blocks 9. The multiple semi-circular blocks 9 drive the clamping column 8 to reset under the elastic force of the first spring 10, causing the end of the clamping column 8 to disengage from the clamping connection with the grinding wheel body 4, thus releasing the lock on the grinding wheel body 4. At this time, the grinding wheel body 4 can be quickly disassembled and replaced. Compared with the prior art, the replacement efficiency is improved, the rapid and accurate replacement of the grinding wheel is realized, and the manual operation time is reduced;

[0034] It should be noted that the card slot 14 on the outer wall of the bolt 12 should be designed to be staggered from the multiple semi-circular blocks 9 to prevent the card slot 14 from engaging with the semi-circular blocks 9 when the bolt 12 is pulled outwards, resulting in the situation where the bolt 12 cannot be pulled out of the main shaft 2.

[0035] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0036] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0037] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0038] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A grinding wheel quick-change device for a grinding machine tool, comprising a drive mechanism (1), characterized in that: The output shaft of the driving mechanism (1) is fixedly connected to the main shaft (2), the outer wall of the main shaft (2) is sleeved with a grinding wheel body (4), the inner wall of the grinding wheel body (4) is evenly provided with a plurality of limiting holes (11) in a circular array at equal intervals, the inner wall of the main shaft (2) is provided with a plurality of slide grooves (7), the plurality of slide grooves (7) correspond to the plurality of limiting holes (11), the inner wall of the slide groove (7) is slidably connected with a clamping column (8), one end of the clamping column (8) facing the inner cavity of the main shaft (2) is fixedly connected with a semicircular block (9), the outer diameter of the semicircular block (9) is the same as that of the main shaft (2), and the outer diameter of the semicircular block (9) is the same as that of the main shaft (2). The inner diameter of the slide groove (7) is adapted, and the outer wall of the clamping column (8) is sleeved with a first spring (10), one end of the first spring (10) is fixedly connected to the inner wall of the slide groove (7), and the other end thereof is fixedly connected to the outer wall of the semicircular block (9), and the end of the clamping column (8) away from the semicircular block (9) passes through the main shaft (2) and is adapted to be plugged into the limiting hole (11), and the inner wall of the main shaft (2) is also plugged with a latch (12), and the outer wall of the latch (12) is provided with a clamping groove (14), and the outer wall of the main shaft (2) is installed with a locking component for facilitating the disassembly and assembly of the latch (12).

2. The grinding wheel quick-change device for a grinding machine tool according to claim 1, characterized in that: The outer wall of the main shaft (2) is fixedly connected to a positioning plate (3), and the outer wall of the positioning plate (3) is provided with a plurality of positioning holes (6), and the plurality of positioning holes (6) are evenly distributed in a circular array with equal spacing; the outer wall of the grinding wheel body (4) is fixedly connected to a plurality of positioning columns (5), and the positioning columns (5) are plugged into the positioning holes (6) accordingly.

3. The grinding wheel quick-change device for a grinding machine tool according to claim 1, characterized in that: The locking assembly comprises two fixed columns (15) fixedly connected to the top outer wall of the main shaft (2); the outer walls of the two fixed columns (15) are slidably connected with a movable plate (16); the bottom outer wall of the movable plate (16) is in contact with the top outer wall of the main shaft (2); the bottom middle outer wall of the movable plate (16) is fixedly connected with a clamping block (17); the bottom end of the clamping block (17) passes through the main shaft (2) and is adapted to be clamped with the clamping groove (14).

4. The grinding wheel quick-change device for a grinding machine tool according to claim 3, characterized in that: The locking assembly further comprises two fixing frames (18) fixedly connected to the top outer wall of the main shaft (2); the top ends of the two fixing columns (15) are fixedly connected to the top inner walls of the two fixing frames (18); the outer walls of the fixing columns (15) are sleeved with a second spring (19); the second spring (19) is located between the fixing frame (18) and the movable plate (16).

5. The grinding wheel quick-change device for a grinding machine tool according to claim 4, characterized in that: A pull plate (20) is fixedly connected to the outer wall of the middle section of the movable plate (16) on the side facing away from the main shaft (2), and the pull plate (20) is designed to be in an inverted "L" shape.

6. The grinding wheel quick-change device for a grinding machine tool according to claim 1, characterized in that: One end of the latch pin (12) away from the inner cavity of the main shaft (2) is rotatably connected to a rotating buckle (13), and the edge of one end of the latch pin (12) located inside the main shaft (2) is chamfered.

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