Grinding machine main shaft with coupling structure

Abstract

The utility model relates to the technical field of grinding machine spindles, and discloses a grinding machine spindle with a coupling structure, which comprises a spindle body, and a connecting part for preventing the axis of the spindle body from deviating is arranged on the surface of the spindle body; wherein the connecting part comprises a connecting column, a movable cavity, a linkage column, a blocking piece, a supporting rod and the like, according to the grinding machine main shaft with the coupling structure, the screw rod is reversely screwed to enable the pressing ring to be gradually away from the connecting sleeve, the first spring pushes the linkage column to reset, and the third spring pulls back the second telescopic rod through the connecting plate; the symmetrical main shaft bodies are installed in the same mode, when one group of main shaft bodies rotate, the transmission blocks and the transmission grooves drive the connecting sleeves to enable the other group of main shaft bodies to rotate, and compared with the mode that the main shafts are tightened and locked through bolts, the main shaft bodies are more convenient to assemble and disassemble. The pressure borne by the surface of the main shaft is reduced, and the situation that the axis deviates when the main shaft is clamped by external force is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grinding machine spindle technical field, concretely is a grinding machine spindle with coupling structure. BACKGROUND

[0002] Grinding machine spindle is an important part of grinding machine, is mainly used for installing and supporting grinding tool (such as grinding wheel, grinding head etc.), so that the workpiece is ground to process, and the design and manufacturing quality of grinding machine spindle have decisive influence on the overall performance and processing quality of grinding machine. Therefore, in the design and manufacture of grinding machine, the design and manufacture of spindle are the key link of attention.

[0003] But the spindle and the spindle of existing grinding machine are connected, most adopt the coupling for connecting, but the connecting mode of coupling has the bolt that is screwed tight coupling to force coupling to occur a certain degree of locking to fix the spindle, also has through the clamping type component clamping coupling, and when the bolt is screwed tight coupling and locks the spindle, the pressure that bolt unidirectionally exerts to the spindle can cause the spindle to be eccentric when connecting, and the clamping type coupling mode is easy to increase the friction of the spindle and the clamping jaw, also is not conducive to the long-term use of the spindle. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a grinding machine spindle with coupling structure to solve the problems in the above background.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a grinding machine spindle with coupling structure, including spindle body, the surface of the spindle body is provided with the connecting part that prevents the spindle body axis from deviating;

[0006] Among them, the connecting part includes connecting column, movable cavity, linkage column, baffle, support rod, spring one, abutting rod, telescopic rod one, anti-drop piece, spring two, cross bar, shaft rod, transmission block, telescopic rod two, connecting plate, spring three, hinged block, connecting sleeve, transmission groove, screw rod, round plate, pressure ring, guide rod, the side close to the spindle body of connecting column is fixedly connected with the surface of the spindle body, the inside of connecting column is equipped with movable cavity, and the inside of movable cavity is rotatably connected with shaft rod.

[0007] Preferably, the inside of movable cavity is slidably connected with linkage column, the anti-drop piece drives telescopic rod one to make the cross bar at the bottom of telescopic rod one always adhere to the top surface of linkage column, further when abutting rod is pushed, the cross bar will push baffle by telescopic rod one, and meanwhile, no motion interference is generated, and the top surface of linkage column is fixedly connected with baffle.

[0008] Preferably, the inner wall of the movable cavity is fixedly connected with a support rod, the support rod penetrates the linkage column and is in sliding connection, a spring one is fixedly connected between the linkage column and the inner wall of the movable cavity, reverse screwing of the screw rod makes the compression ring gradually move away from the connecting sleeve, the spring one pushes the linkage column to reset, and the spring three also pulls back the telescopic rod two through the connecting plate, so that the transmission block resets and extends out of the movable cavity and is inserted into the transmission groove.

[0009] Preferably, the number of the shaft rods is two groups, a resisting rod is fixedly connected to the right shaft rod, and a transmission block is fixedly connected to the left shaft rod.

[0010] Preferably, the bottom end of the resisting rod penetrates and is in sliding connection with a telescopic rod one, the inner end of the telescopic rod one in the resisting rod is fixedly connected with an anti-drop piece, the bottom surface of the anti-drop piece and the inner wall of the resisting rod are fixedly connected with a spring two, when the compression ring moves to be attached to the surface of the connecting sleeve, the screw rod is stopped from being screwed, at this time, the resisting rod can be pushed in the direction of the transmission block, so that the resisting rod rotates around the center line of the shaft rod, and because the spring two in the resisting rod always pulls the anti-drop piece, the anti-drop piece drives the telescopic rod one to make the horizontal rod at the bottom of the telescopic rod one always attached to the top surface of the linkage column, and the bottom end of the telescopic rod one penetrates and is fixedly connected with a horizontal rod.

[0011] Preferably, the bottom end of the transmission block penetrates and is in sliding connection with a telescopic rod two, the top end of the telescopic rod two is fixedly connected with a connecting plate, the top surface of the connecting plate and the inner wall of the transmission block are fixedly connected with a spring three, the top end of a hinged block is penetrated by the bottom end of the telescopic rod two and is hingedly connected.

[0012] Preferably, the connecting column penetrates a connecting sleeve, the inner side of the connecting sleeve is provided with a transmission groove, the surface of the connecting sleeve is rotationally connected with a screw rod, the screw rod penetrates and is threadedly connected with a circular plate, the surface of the circular plate is fixedly connected with a compression ring, when the linkage column slides, the hinged block one moves, the hinged block pulls the telescopic rod two, the angle deflection of the telescopic rod two drives the transmission block one to rotate, the transmission block is retracted into the movable cavity, the surface of the connecting sleeve is fixedly connected with a guide rod, the guide rod penetrates the circular plate and is in sliding connection, the screw rod is screwed, so that the screw rod forces the circular plate to move in the direction of the connecting sleeve along the guide rod.

[0013] Compared with the prior art, the utility model provides a grinding machine main shaft with shaft coupling structure has the following beneficial effects:

[0014] 1. The grinding machine spindle with a coupling structure, when the screw is turned in the opposite direction, causes the pressure ring to gradually move away from the connecting sleeve. Spring 1 pushes the linkage column to reset, and spring 3 also pulls back the telescopic rod 2 through the connecting plate, thereby causing the transmission block to reset, extend out of the movable cavity, and insert into the transmission groove. At this point, the connection is completed. The symmetrical spindle bodies are installed in the same way. When one set of spindle bodies rotates, it will drive the connecting sleeve through the transmission block and the transmission groove to make the other set of spindle bodies rotate. Compared with the method of tightening the spindle with bolts, the pressure on the spindle surface is reduced, and the situation of shaft offset when the spindle is clamped by external force is avoided.

[0015] 2. The grinding machine spindle with the coupling structure drives the connecting sleeve to rotate through the transmission block and transmission groove, thereby reducing the friction between the connecting sleeve and the surface of the spindle body and increasing the service life of the spindle body. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the connecting sleeve of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the connecting column of this utility model;

[0019] Figure 4 This is a cross-sectional view of the transmission block and the contact rod of this utility model.

[0020] In the diagram: 1. Main shaft body; 2. Connecting part; 21. Connecting column; 22. Movable cavity; 23. Linkage column; 24. Baffle plate; 25. Support rod; 26. Spring 1; 27. Abutting rod; 28. Telescopic rod 1; 29. ​​Anti-detachment plate; 210. Spring 2; 211. Crossbar; 212. Shaft; 213. Transmission block; 214. Telescopic rod 2; 215. Connecting plate; 216. Spring 3; 217. Hinge block; 218. Connecting sleeve; 219. Transmission groove; 220. Screw; 221. Circular plate; 222. Pressure ring; 223. Guide rod. Detailed Implementation

[0021] like Figures 1-4 As shown, this utility model provides a technical solution: a grinding machine spindle with a coupling structure, including a spindle body 1, and a connecting part 2 on the surface of the spindle body 1 to prevent the spindle body 1 from deviating from its axis;

[0022] The connecting part 2 comprises a connecting column 21, a movable cavity 22, a linkage column 23, a baffle 24, a supporting rod 25, a spring 1 26, a resisting rod 27, a telescopic rod 1 28, an anti-off piece 29, a spring 2 210, a cross rod 211, a shaft rod 212, a transmission block 213, a telescopic rod 2 214, a connecting plate 215, a spring 3 216, a hinged block 217, a connecting sleeve 218, a transmission groove 219, a screw rod 220, a circular plate 221, a pressing ring 222 and a guide rod 223. The connecting column 21 is fixedly connected to the surface of the main shaft body 1 on one side close to the main shaft body 1. The inside of the connecting column 21 is provided with the movable cavity 22, and the inner side of the movable cavity 22 is rotationally connected with the shaft rod 212. The inside of the movable cavity 22 is slidably connected with the linkage column 23. The anti-off piece 29 drives the telescopic rod 1 28 to make the cross rod 211 at the bottom of the telescopic rod 1 28 always adhere to the top surface of the linkage column 23, which further drives the cross rod 211 to move the baffle 24 when the resisting rod 27 is moved, without causing movement interference. The top surface of the linkage column 23 is fixedly connected with the baffle 24. The inner wall of the movable cavity 22 is fixedly connected with the supporting rod 25, which penetrates through the linkage column 23 and is slidably connected. The linkage column 23 and the inner wall of the movable cavity 22 are fixedly connected with the spring 1 26. Reverse rotation of the screw rod 220 makes the pressing ring 222 gradually move away from the connecting sleeve 218, the spring 1 26 pushes the linkage column 23 back to the original position, and the spring 3 216 pulls back the telescopic rod 2 214 through the connecting plate 215, so that the transmission block 213 is reset to extend out of the movable cavity 22 and be inserted into the transmission groove 219. There are two groups of shaft rods 212, and the right shaft rod 212 penetrates and is fixedly connected with the resisting rod 27, and the left shaft rod 212 penetrates and is fixedly connected with the transmission block 213. The bottom end of the resisting rod 27 penetrates and is slidably connected with the telescopic rod 1 28. One end of the telescopic rod 1 28 in the resisting rod 27 is fixedly connected with the anti-off piece 29. The bottom surface of the anti-off piece 29 and the inner wall of the resisting rod 27 are fixedly connected with the spring 2 210. When the pressing ring 222 moves to adhere to the surface of the connecting sleeve 218, the screw rod 220 is stopped from being rotated, and the resisting rod 27 is pushed in the direction of the transmission block 213 at this time, so that the resisting rod 27 rotates around the center line of the shaft rod 212. Because the spring 2 210 in the resisting rod 27 always pulls the anti-off piece 29 tightly, the anti-off piece 29 drives the telescopic rod 1 28 to make the cross rod 211 at the bottom of the telescopic rod 1 28 always adhere to the top surface of the linkage column 23. The bottom end of the telescopic rod 1 28 penetrates and is fixedly connected with the cross rod 211. The bottom end of the transmission block 213 penetrates and is slidably connected with the telescopic rod 2 214. The top end of the telescopic rod 2 214 is fixedly connected with the connecting plate 215. The top surface of the connecting plate 215 and the inner wall of the transmission block 213 are fixedly connected with the spring 3 216. The top end of the hinged block 217 is penetrated by the bottom end of the telescopic rod 2 214 and is hingedly connected.The connecting column 21 is penetrated by a connecting sleeve 218, the inner side of the connecting sleeve 218 is provided with a transmission groove 219, the surface of the connecting sleeve 218 is rotationally connected with a screw rod 220, the screw rod 220 is penetrated and threadedly connected with a circular plate 221, the surface of the circular plate 221 is fixedly connected with a pressing ring 222, and when the cross rod 211 drives the baffle 24, the linkage column 23 will be pulled and the spring one 26 will be compressed, when the linkage column 23 slides, the articulated block 217 will be moved together, the articulated block 217 pulls the telescopic rod two 214, the angular deflection of the telescopic rod two 214 drives the transmission block 213 to rotate together, the transmission block 213 is retracted into the movable cavity 22, at this time, the connecting column 21 is inserted into the connecting sleeve 218, the position of the abutting rod 27 is gradually inserted into the connecting sleeve 218, at this time, the abutting rod 27 is blocked by the pressing ring 222 and cannot be reset, the surface of the connecting sleeve 218 is fixedly connected with a guide rod 223, the guide rod 223 penetrates the circular plate 221 and is slidingly connected, the screw rod 220 is twisted, the screw rod 220 forces the circular plate 221 to move in the direction of the guide rod 223 to the direction of the connecting sleeve 218.

[0023] Based on the above embodiment, when the main shaft body 1 is connected, first twist the screw rod 220, so that the screw rod 220 forces the circular plate 221 to move in the direction of the guide rod 223 to the direction of the connecting sleeve 218, when the circular plate 221 moves, the compression ring 222 moves together, when the compression ring 222 moves to the surface of the connecting sleeve 218, stop twisting the screw rod 220, and at this time, push the abutting rod 27 in the direction of the transmission block 213, so that the abutting rod 27 rotates around the center line of the shaft rod 212, and because the spring two 210 inside the abutting rod 27 is always tensioned, the anti-drop piece 29 drives the telescopic rod one 28 to always adhere to the top surface of the linkage column 23, further, when the abutting rod 27 is pushed, the telescopic rod one 28 drives the horizontal rod 211 to push the blocking piece 24, and no motion interference is generated, when the horizontal rod 211 pushes the blocking piece 24, the linkage column 23 is pulled and the spring one 26 is compressed, when the linkage column 23 slides, the hinged block 217 moves together, the telescopic rod two 214 is pulled, and the angle deflection of the telescopic rod two 214 drives the transmission block 213 to rotate, so that the transmission block 213 is retracted into the movable cavity 22, at this time, the connecting column 21 is inserted into the connecting sleeve 218, and the position of the abutting rod 27 is gradually inserted into the connecting sleeve 218, at this time, the abutting rod 27 is blocked by the compression ring 222 and cannot be reset, then reverse twist the screw rod 220 to gradually move the compression ring 222 away from the connecting sleeve 218, the spring one 26 pushes the linkage column 23 to reset, and the spring three 216 also pulls back the telescopic rod two 214 through the connecting plate 215, so that the transmission block 213 resets and extends out of the movable cavity 22 and is inserted into the transmission groove 219, at this time, the connection is completed, the installation mode of the symmetrical main shaft body 1 is the same, and when one of the main shaft bodies 1 rotates, the connecting sleeve 218 is driven by the transmission block 213 and the transmission groove 219 to drive the other main shaft body 1 to rotate, compared with the bolt tightening and locking main shaft mode, the pressure on the surface of the main shaft is reduced, and the situation that the shaft center deviates when the main shaft is clamped by external force is avoided.

[0024] At the same time, the transmission block 213 and the transmission groove 219 drive the connecting sleeve 218 to rotate, so that the connected main shaft body 1 rotates, which can reduce the friction between the connecting sleeve 218 and the surface of the main shaft body 1, and increase the service life of the main shaft body 1.

[0025] The above is a detailed description of the general application, but some modifications or improvements can be made on the basis of the application, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the application, the modifications or improvements are within the scope of the application.

Claims

1. A grinding machine spindle with a shaft coupling structure, comprising a spindle body (1), characterized in that: The surface of the main shaft body (1) is provided with a connecting part (2) for preventing the main shaft body (1) from deviating from the center; Wherein, the connecting part (2) comprises a connecting column (21), a movable cavity (22), a linkage column (23), a baffle (24), a supporting rod (25), a spring one (26), a resisting rod (27), a telescopic rod one (28), an anti-off piece (29), a spring two (210), a cross rod (211), a shaft rod (212), a transmission block (213), a telescopic rod two (214), a connecting plate (215), a spring three (216), a hinged block (217), a connecting sleeve (218), a transmission groove (219), a screw rod (220), a round plate (221), a compression ring (222), a guide rod (223), the connecting column (21) is fixedly connected with the surface of the main shaft body (1) on the side close to the main shaft body (1), the inside of the connecting column (21) is provided with the movable cavity (22), the inside of the movable cavity (22) is rotatably connected with the shaft rod (212), the inside of the movable cavity (22) is slidably connected with the linkage column (23), the top surface of the linkage column (23) is fixedly connected with the baffle (24), the inner wall of the movable cavity (22) is fixedly connected with the supporting rod (25), the supporting rod (25) penetrates through the linkage column (23) and is slidably connected, the linkage column (23) and the inner wall of the movable cavity (22) are fixedly connected with the spring one (26), the number of the shaft rod (212) is two groups, the right side shaft rod (212) penetrates through and is fixedly connected with the resisting rod (27), the left side shaft rod (212) penetrates through and is fixedly connected with the transmission block (213), the bottom end of the resisting rod (27) penetrates through and is slidably connected with the telescopic rod one (28), one end of the telescopic rod one (28) in the resisting rod (27) is fixedly connected with the anti-off piece (29), the bottom surface of the anti-off piece (29) and the inner wall of the resisting rod (27) are fixedly connected with the spring two (210), the bottom end of the telescopic rod one (28) penetrates through and is fixedly connected with the cross rod (211), the bottom end of the transmission block (213) penetrates through and is slidably connected with the telescopic rod two (214), the top end of the telescopic rod two (214) is fixedly connected with the connecting plate (215), the top surface of the connecting plate (215) and the inner wall of the transmission block (213) are fixedly connected with the spring three (216), the top surface of the linkage column (23) is fixedly connected with the hinged block (217), the top end of the hinged block (217) is penetrated by the bottom end of the telescopic rod two (214) and is hingedly connected, the connecting column (21) penetrates through the connecting sleeve (218), the inside of the connecting sleeve (218) is provided with the transmission groove (219), the surface of the connecting sleeve (218) is rotatably connected with the screw rod (220), the screw rod (220) penetrates through and is threadedly connected with the round plate (221), the surface of the round plate (221) is fixedly connected with the compression ring (222), the surface of the connecting sleeve (218) is fixedly connected with the guide rod (223), the guide rod (223) penetrates through the round plate (221) and is slidably connected.

Images