A mahjong machine frame polishing device

Abstract

The present invention relates to the field of polishing machines, and in particular to a polishing device for the outer frame of a mahjong machine. The polishing device for the outer frame of a mahjong machine is prone to problems of low work efficiency and complicated loading process during operation. The present invention comprises a frame, a transmission mechanism is arranged on one side of the frame, the transmission mechanism comprises a motor, the motor is fixedly connected to the frame by screws, the motor output shaft is fixedly connected to a first transmission shaft, the first transmission shaft is fixedly connected to a first gear at one end close to the motor, the first gear is meshed with a second gear, the other end of the second gear shaft is fixedly connected to a first pulley, and a transmission belt is arranged on the first pulley. During use, the present invention realizes the periodic rotation of the processed material by using the meshing of the gear and the rack, and the material is polished in turn around, thereby improving the work efficiency; by pushing and rotating the hand wheel, the clamping and fixing of the material and the locking of the clamping mechanism are realized, and the loading process is simple and easy to operate.

Description

Technical Field

[0001] The invention relates to the field of polishing machines, in particular to a polishing device for an outer frame of a mahjong machine. Background Art

[0002] The outer frame polishing device of the mahjong machine is an important part of the mahjong machine manufacturing process, which aims to improve the surface finish and aesthetics of the outer frame of the mahjong machine. With the continuous expansion of the mahjong machine market and the improvement of consumers' requirements for product quality, the outer frame polishing technology is also constantly improving and developing.

[0003] Mahjong machine frame polishing devices are currently rarely used in China. Although modern polishing devices have made significant progress, they may still face problems with polishing uniformity and polishing efficiency when processing complex shapes or large mahjong machine frames. Since the contact state between the polishing wheel and the workpiece surface is difficult to fully control, some areas may be over-polished or under-polished, and some non-value-added time during the polishing process (such as material replacement, parameter adjustment, etc.) also affects the overall efficiency. In addition, there will be problems such as low work efficiency and cumbersome loading process during the work process. Summary of the invention

[0004] (1) Technical issues to be resolved

[0005] In order to overcome the shortcomings of low working efficiency and complicated feeding process of the outer frame polishing device of a mahjong machine during operation, the technical problem to be solved by the present invention is to provide a mahjong machine outer frame polishing device.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the present invention provides a mahjong machine frame polishing device, which includes a frame, a transmission mechanism is arranged on one side of the frame, and the transmission mechanism includes a motor, the motor is fixedly connected to the frame by screws, the motor output shaft is fixedly connected to the first transmission shaft, the first transmission shaft is fixedly connected to the first gear at one end close to the motor, the first gear is meshed with the second gear, and the other end of the second gear shaft is fixedly connected to the first pulley, a transmission belt is arranged on the first pulley, the first pulley is rotatably connected to the second pulley through the transmission belt, the second pulley is fixedly connected to the second transmission shaft, one end of the second transmission shaft is rotatably connected to the frame, the end of the second transmission shaft away from the frame is fixedly connected to the first connecting rod, the first connecting rod is rotatably connected to the second connecting rod through the rotating shaft, the other end of the second connecting rod is rotatably connected to the push plate, and the other side of the push plate is fixedly connected to a plurality of first sliding blocks.

[0008] Preferably, a polishing mechanism is provided at the end of the first transmission shaft away from the motor, and the polishing mechanism includes a first polishing wheel, the first polishing wheel is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to a first support seat, the first support seat is fixedly connected to the frame, and the end of the rotating shaft away from the first polishing wheel is fixedly connected to a first bevel gear, the first bevel gear is meshingly connected to a second bevel gear, and the second bevel gear is fixedly connected to the first transmission shaft.

[0009] Preferably, a second polishing wheel is fixedly connected to the outside of the first transmission shaft and on the right side of the second bevel gear, a third bevel gear is fixedly connected to the outside of the first transmission shaft and on the right side of the second polishing wheel, the third bevel gear is fixedly connected to a fourth bevel gear by meshing, the fourth bevel gear is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to a second support seat, the second support seat is fixedly connected to the frame, and the other end of the rotating shaft is fixedly connected to the third polishing wheel.

[0010] Preferably, the side wall of the frame is fixedly connected with a first slide rail, the first slider is slidably connected to the inside of the first slide rail, the first slider is fixedly connected with a bottom plate on the side away from the frame, the outer side of the bottom plate is fixedly connected with a movable frame, the outer side of the bottom plate is fixedly connected with a guide plate via an L-shaped rod, the outer side of the frame is fixedly connected with a support plate, the lower surface of the support plate is slidably connected with a rack via a slide groove, the side of the rack close to the support plate is fixedly connected with a spring, and the other end of the spring is fixedly connected to the support plate.

[0011] Preferably, a sliding groove is provided above the bottom plate and located at the first transmission shaft, and a long groove is also provided in the middle of the bottom plate.

[0012] Preferably, a clamping mechanism is provided on the outer side surface of the base plate, and the clamping mechanism includes a third transmission shaft, a third transmission shaft is rotatably connected to the middle part of the outer side surface of the base plate, the third transmission shaft is fixedly connected to the third gear on the side close to the base plate, the third transmission shaft is slidably connected to the hand push wheel on the side away from the base plate, the third transmission shaft is also slidably connected to a rotating ring on the side away from the base plate, one side of the rotating ring is abutted against the hand push wheel, and a support rod is symmetrically fixedly connected to the other side of the rotating ring, the support rod is fixedly connected to the second slider at one end away from the rotating ring, the second slider is slidably connected to the second slide rail, and the second slide rail is fixedly connected to the clamping frame.

[0013] Preferably, an L-shaped sliding groove is provided at one end of the third transmission shaft close to the hand-push wheel, and a limit block fixedly connected to the inner side of the hand-push wheel is slidably connected to the sliding groove.

[0014] Preferably, a third connecting rod is rotatably connected to the outer side of the second slider, the end of the third connecting rod away from the second slider is rotatably connected to a connecting plate, both ends of the connecting plate are rotatably connected to multiple fourth connecting rods, the end of the fourth connecting rod away from the connecting plate is rotatably connected to a clamping claw, the end of the clamping claw close to the connecting plate is rotatably connected to a fixing plate, the bottom of the fixing plate is fixedly connected to the clamping frame, and the middle part of the clamping frame is rotatably connected to the third transmission shaft.

[0015] Preferably, the number of teeth of the rack is one quarter of the number of teeth of the third gear.

[0016] Preferably, a dust box is provided at the lower end of the movable frame, and the dust box is slidably connected to the movable frame via a sliding groove.

[0017] (3) Beneficial effects

[0018] During use, the present invention realizes the periodic movement of the working platform by using mechanisms such as gears, belts, and connecting rods. A guide plate is arranged on the bottom plate of the mobile frame. When the guide plate moves to the position of the rack, the rack is squeezed, and the spring is compressed, so that the third gear and the rack are meshed and rotated. After the third gear rotates a quarter of a circle, the rack stops meshing and disengages from the guide plate, and the spring rebounds. At this time, the bottom plate moves back, and the rack slides above the guide plate. The spring is stretched until it is separated from the guide plate, thereby rotating the material, and polishing the four surfaces of the material in turn, realizing the efficient conversion of mechanical energy and greatly improving the work efficiency.

[0019] By pushing and rotating the hand wheel, a series of connecting rods are driven to move, which drives the clamping claws to clamp the material, thereby achieving the clamping and fixing of the material and the locking of the clamping mechanism. The loading process is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the overall back of the present invention;

[0022] Figure 3 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the frame of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of the clamping mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the frame and bottom plate structure of the present invention;

[0026] Figure 7 for Figure 6 An enlarged view of point A is shown;

[0027] Figure 8 It is a schematic diagram of the polishing mechanism structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the clamping mechanism of the present invention.

[0029] The markings in the accompanying drawings are: 1-frame, 2-movable frame, 201-first slider, 202-first slide rail, 203-dust box, 204-guide plate, 205-rack, 206-support plate, 207-spring, 208-bottom plate, 3-transmission mechanism, 301-motor, 302-first gear, 303-first transmission shaft, 304-second gear, 305-first pulley, 306-transmission belt, 307-second pulley, 308-second transmission shaft, 309-first connecting rod, 310-second connecting rod, 311-push plate, 4-clamping mechanism, 401-third gear , 402-the third transmission shaft, 403-the hand wheel, 404-the rotating ring, 405-the support rod, 406-the second slider, 407-the third connecting rod, 408-the connecting plate, 409-the fourth connecting rod, 410-the clamping claw, 411-the fixed plate, 412-the clamping frame, 413-the second slide rail, 5-the material, 6-the polishing mechanism, 601-the first polishing wheel, 602-the first bevel gear, 603-the second bevel gear, 604-the second polishing wheel, 605-the third bevel gear, 606-the fourth bevel gear, 607-the third polishing wheel, 608-the first support seat, 609-the second support seat. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0031] A mahjong machine frame polishing device, such as Figure 1-Figure 3As shown, it includes a frame 1, a transmission mechanism 3 is arranged on one side of the frame 1, and the transmission mechanism 3 includes a motor 301, the motor 301 is fixedly connected to the frame 1 by screws, the output shaft of the motor 301 is fixedly connected to a first transmission shaft 303, one end of the first transmission shaft 303 close to the motor 301 is fixedly connected to a first gear 302, the first gear 302 is meshedly connected to a second gear 304, so as to achieve the adjustment of different speeds, the rotating shaft of the second gear 304 is rotatably connected to the frame 1, the other end of the rotating shaft of the second gear 304 is fixedly connected to a first pulley 305, a transmission belt 306 is arranged on the first pulley 305, and the first pulley 305 is rotatably connected to the second gear 304 through the transmission belt 306. Pulley 307, the second pulley 307 is fixedly connected to the second transmission shaft 308, one end of the second transmission shaft 308 is rotatably connected to the frame 1, the end of the second transmission shaft 308 away from the frame 1 is fixedly connected to the first connecting rod 309, the first connecting rod 309 is rotatably connected to the second connecting rod 310 through a rotating shaft, the other end of the second connecting rod 310 is rotatably connected to the push plate 311, the movement of the first connecting rod 309 and the second connecting rod 310 can drive the push plate 311 to perform linear reciprocating motion, the other side of the push plate 311 is fixedly connected to three first sliders 201, through the efficient conversion of mechanical energy, the rotational power of the output shaft of the motor 301 is transmitted to the first slider 201, thereby realizing the flexibility and accuracy of power distribution.

[0032] like Figure 8 As shown, a polishing mechanism 6 is provided at one end of the first transmission shaft 303 away from the motor 301, and the polishing mechanism 6 includes a first polishing wheel 601, the first polishing wheel 601 is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to a first support seat 608, the first support seat 608 is fixedly connected to the frame 1, and the end of the rotating shaft away from the first polishing wheel 601 is fixedly connected to a first bevel gear 602, the first bevel gear 602 is meshingly connected to a second bevel gear 603, and the second bevel gear 603 is fixedly connected to the first transmission shaft 303.

[0033] like Figure 8 As shown, a second polishing wheel 604 is fixedly connected to the outside of the first transmission shaft 303 and on the right side of the second bevel gear 603, and a third bevel gear 605 is fixedly connected to the outside of the first transmission shaft 303 and on the right side of the second polishing wheel 604. The third bevel gear 605 is fixedly connected to a fourth bevel gear 606 by meshing, and the fourth bevel gear 606 is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to a second support seat 609, and the second support seat 609 is fixedly connected to the frame 1. The other end of the rotating shaft is fixedly connected to a third polishing wheel 607, and through the meshing connection of the bevel gears, the outer side surface and the two mating surfaces of the material 5 are polished simultaneously, thereby greatly improving the work efficiency.

[0034] like Figure 4 , Figure 6 , Figure 7 As shown, three first slide rails 202 are fixedly connected to the side wall of the frame 1, the first slider 201 is slidably connected to the inside of the first slide rail 202, the first slider 201 is fixedly connected to the side away from the frame 1 with a base plate 208, the outer side of the base plate 208 is fixedly connected to the movable frame 2, the outer side of the base plate 208 is fixedly connected to the guide plate 204 through an L-shaped rod, and the L-shaped rod is provided to form a space between the guide plate 204 and the base plate 208 for the rack 205 to slide through, the outer side of the frame 1 is fixedly connected to a support plate 206, the lower surface of the support plate 206 is slidably connected to the rack 205 through a slide groove, the side of the rack 205 close to the support plate 206 is fixedly connected to a spring 207, and the other end of the spring 207 is fixedly connected to the support plate 206.

[0035] like Figure 5 As shown, long grooves are respectively opened on the top and in the middle of the bottom plate 208. The upper groove makes way for the part of the first transmission shaft 303 that the bottom plate 208 sweeps when moving, and the middle groove makes way for the support plate 206 so that the rack 205 can mesh successfully with the third gear 401.

[0036] like Fig. 9 As shown, a clamping mechanism 4 is provided on the outer side of the base plate 208, and the clamping mechanism 4 includes a third transmission shaft 402, and the third transmission shaft 402 is rotatably connected to the middle part of the outer side of the base plate 208, and the third gear 401 is fixedly connected to the side of the third transmission shaft 402 close to the base plate 208, and the third transmission shaft 402 is slidably connected to the side away from the base plate 208. A hand wheel 403 is also slidably connected to the side of the third transmission shaft 402 away from the base plate 208, and a rotating ring 404 is also slidably connected to the side away from the base plate 208. One side of the rotating ring 404 is abutted against the hand wheel 403, and a support rod 405 is symmetrically fixedly connected to the other side of the rotating ring 404 from top to bottom, and a second slider 406 is fixedly connected to the end of the support rod 405 away from the rotating ring 404, and the second slider 406 is slidably connected to the second slide rail 413, and the second slide rail 413 is fixedly connected to the clamping frame 412.

[0037] like Fig. 9 As shown, an L-shaped sliding groove is provided at one end of the third transmission shaft 402 close to the hand wheel 403 , and a limit block fixedly connected to the inner side of the hand wheel 403 is slidably connected to the sliding groove, which can provide a locking function for the clamping mechanism 4 .

[0038] like Fig. 9As shown, the outer side of the second slider 406 is rotatably connected to the third connecting rod 407, the end of the third connecting rod 407 away from the second slider 406 is rotatably connected to the connecting plate 408, and both ends of the connecting plate 408 are rotatably connected to multiple fourth connecting rods 409, the end of the fourth connecting rod 409 away from the connecting plate 408 is rotatably connected to the clamping claw 410, and the end of the clamping claw 410 close to the connecting plate 408 is rotatably connected to the fixed plate 411, the bottom of the fixed plate 411 is fixedly connected to the clamping frame 412, and the middle part of the clamping frame 412 is rotatably connected to the third transmission shaft 402. The setting of the clamping mechanism 4 realizes the automatic opening and closing of the grip, thereby clamping and fixing the material 5.

[0039] like Figure 7 As shown, the number of teeth of the rack 205 is one fourth of the number of teeth of the third gear 401, so that the third gear 401 rotates 90° each time it meshes, and the grinding and polishing of the four sides of the material 5 can be completed after four meshes.

[0040] like Figure 1 As shown, a dust box 203 is provided at the lower end of the mobile frame 2, and the dust box 203 is slidably connected to the mobile frame 2 through a slide groove, which is convenient for disassembly and cleaning. During the polishing process, the dust and debris generated can be effectively collected in the dust box, keeping the working environment clean and reducing the harm of dust to equipment and operators.

[0041] Working principle: When using the mahjong machine frame polishing device, before starting the motor 301, the material 5 should be fixed first, the hand wheel 403 is pushed to the bottom of the slide along the third transmission shaft 402 and then rotated 90 degrees. The L-shaped slide plays a locking role. The hand wheel 403 drives the rotating ring 404 to move axially along the third transmission shaft 402, and the rotating ring 404 drives the support rod 405 to move axially along the third transmission shaft 402. The support rod 405 drives the second slider 406 to slide in the second slide rail 413, and the second slider 406 drives the third connecting rod 407 to move, and the third connecting rod 407 drives the connecting plate 408 to move, and the connecting plate 408 drives the four fourth connecting rods 409 on both sides to move synchronously, and the fourth connecting rod 409 drives the eight clamping claws 410 to move synchronously to clamp the inner wall of the material 5.

[0042] Start the motor 301, the output shaft of the motor 301 drives the first transmission shaft 303 to rotate, the first transmission shaft 303 drives the first gear 302 to rotate, the first gear 302 drives the second gear 304 to rotate through meshing, the second gear 304 drives the first pulley 305 to rotate through the rotating shaft, the first pulley 305 drives the second pulley 307 to rotate through the transmission belt 306, the second pulley 307 drives the second transmission shaft 308 to rotate, the second transmission shaft 308 drives the first connecting rod 309 to rotate in a circle along the axis of the second transmission shaft 308, the first connecting rod 309 drives the second connecting rod 310 to rotate, the second connecting rod 310 drives the push plate 311 to perform a linear reciprocating motion, the other side of the push plate 311 is fixedly connected with three first sliders 201, the push plate 311 drives the first slider 201 to slide linearly reciprocatingly in the first slide rail 202.

[0043] The first transmission shaft 303 drives the second bevel gear 603, the second polishing wheel 604, and the third bevel gear 605 to rotate. The second bevel gear 603 drives the first bevel gear 602 to rotate through meshing. The first bevel gear 602 drives the first polishing wheel 601 to rotate through the rotating shaft. The third bevel gear 605 drives the fourth bevel gear 606 to rotate through meshing. The fourth bevel gear 606 drives the third polishing wheel 607 to rotate through the rotating shaft. The meshing of the bevel gears is used to achieve simultaneous polishing of the side surface and two mating surfaces of the material 5, thereby improving the working efficiency of the device.

[0044] The other side of the first slider 201 is fixedly connected to a bottom plate 208. The first slider 201 drives the bottom plate 208 to perform linear reciprocating motion along the first slide rail 202. The bottom plate 208 drives the guide plate 204 to move. When the guide plate 204 moves to the position of the rack 205, the guide plate 204 squeezes the rack 205, and the spring 207 is compressed, so that the third gear 401 and the rack 205 mesh and rotate. The third gear 401 drives the third transmission shaft 402 to rotate, and the third transmission shaft 402 drives the clamping mechanism 4 to rotate axially. The clamping mechanism 4 drives the material 5 to rotate, and the third gear 401 drives the third transmission shaft 402 to rotate axially. After the wheel 401 rotates a quarter of a circle, the next unprocessed surface is polished, and the rack 205 stops meshing and disengages from the guide plate 204. At this time, the spring 207 rebounds to make the rack 205 slide to the outside of the support plate 206, and the rack 205 is located on the outer side of the guide plate 204 under the left and right of the spring 207. At this time, the bottom plate 208 moves back, and the rack 205 slides above the guide plate 204. The spring 207 is stretched until it is separated from the guide plate 204. After the rack 205 is separated from the guide plate 204, the rack 205 is reset under the action of the spring 207. The bottom plate 208 performs multiple reciprocating movements, that is, after the material 5 completes multiple rotations, until the polishing work is completed, the motor 301 is turned off, and the hand wheel 403 is rotated in the opposite direction to unlock the clamping mechanism 4, and the polished material 5 can be unloaded.

[0045] Long grooves are respectively provided on the top and in the middle of the bottom plate 208 . The top groove makes way for the bottom plate 208 to sweep over the motor 301 when it moves, and the middle groove makes way for the support plate 206 so that the rack 205 can mesh successfully with the third gear 401 .

[0046] A dust box is provided under the mobile frame 2 to collect the debris generated during processing, which is easy to clean and disassemble. During the polishing process, the dust and debris generated can be effectively collected in the dust box, keeping the working environment clean and reducing the harm of dust to equipment and operators.

[0047] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A mahjong machine frame polishing device, characterized in that: The invention comprises a frame (1), wherein a transmission mechanism (3) is arranged on one side of the frame (1), wherein the transmission mechanism (3) comprises a motor (301), wherein the motor (301) is fixedly connected to the frame (1) by means of screws, wherein an output shaft of the motor (301) is fixedly connected to a first transmission shaft (303), wherein an end of the first transmission shaft (303) close to the motor (301) is fixedly connected to a first gear (302), wherein the first gear (302) is meshingly connected to a second gear (304), wherein one end of a rotating shaft of the second gear (304) is fixedly connected to a first belt pulley (305), and a transmission belt (303) is arranged on the first belt pulley (305). 06), the first pulley (305) is rotatably connected to the second pulley (307) via the transmission belt (306), the second pulley (307) is fixedly connected to the second transmission shaft (308), one end of the second transmission shaft (308) is rotatably connected to the frame (1), the end of the second transmission shaft (308) away from the frame (1) is fixedly connected to the first connecting rod (309), the first connecting rod (309) is rotatably connected to the second connecting rod (310) via a rotating shaft, the other end of the second connecting rod (310) is rotatably connected to a push plate (311), and the other side of the push plate (311) is fixedly connected to a plurality of first sliding blocks (201); A polishing mechanism (6) is provided at one end of the first transmission shaft (303) away from the motor (301), the polishing mechanism (6) comprising a first polishing wheel (601), the first polishing wheel (601) being fixedly connected to a rotating shaft, the rotating shaft being rotatably connected to a first support seat (608), the first support seat (608) being fixedly connected to the frame (1), the end of the rotating shaft away from the first polishing wheel (601) being fixedly connected to a first bevel gear (602), the first bevel gear (602) being meshingly connected to a second bevel gear (603), the second bevel gear (603) being fixedly connected to the first transmission shaft (303); A second polishing wheel (604) is fixedly connected to the outside of the first transmission shaft (303) and located on the right side of the second bevel gear (603); a third bevel gear (605) is fixedly connected to the outside of the first transmission shaft (303) and located on the right side of the second bevel gear (604); the third bevel gear (605) is fixedly connected to a fourth bevel gear (606) by meshing; the fourth bevel gear (606) is fixedly connected to a rotating shaft; the rotating shaft is rotatably connected to a second support seat (609); the second support seat (609) is fixedly connected to the frame (1); and the other end of the rotating shaft is fixedly connected to a third polishing wheel (607); The side wall of the frame (1) is fixedly connected with a plurality of first slide rails (202); the first slide block (201) is slidably connected inside the first slide rails (202); the first slide block (201) is fixedly connected with a bottom plate (208) on a side away from the frame (1); the outer side surface of the bottom plate (208) is fixedly connected with a movable frame (2); the outer side surface of the bottom plate (208) is fixedly connected with a guide plate (204) via an L-shaped rod; the outer side surface of the frame (1) is fixedly connected with a support plate (206); the lower surface of the support plate (206) is slidably connected with a rack (205) via a slide groove; the side of the rack (205) close to the support plate (206) is fixedly connected with a spring (207); the other end of the spring (207) is fixedly connected to the support plate (206); A sliding groove is provided above the bottom plate (208) and located at the first transmission shaft (303), and a long groove is also provided in the middle of the bottom plate (208); The outer side surface of the bottom plate (208) is provided with a clamping mechanism (4), and the clamping mechanism (4) includes a third transmission shaft (402). The middle part of the outer side surface of the bottom plate (208) is rotatably connected to the third transmission shaft (402). The side of the third transmission shaft (402) close to the bottom plate (208) is fixedly connected to a third gear (401). The side of the third transmission shaft (402) away from the bottom plate (208) is slidably connected to a hand wheel (403). A rotating ring (404) is also slidably connected to one side of the bottom plate (208), one side of the rotating ring (404) abuts against the hand wheel (403), and a support rod (405) is symmetrically fixedly connected to the other side of the rotating ring (404) in an upper and lower manner, and a second slider (406) is fixedly connected to one end of the support rod (405) away from the rotating ring (404), and the second slider (406) is slidably connected to a second slide rail (413), and the second slide rail (413) is fixedly connected to a clamping frame (412).

2. A mahjong machine frame polishing device according to claim 1, characterized in that: An L-shaped sliding groove is provided at one end of the third transmission shaft (402) close to the hand-pushing wheel (403), and a limit block fixedly connected to the inner side of the hand-pushing wheel (403) is slidably connected to the sliding groove.

3. A mahjong machine frame polishing device according to claim 2, characterized in that: The outer side of the second slider (406) is rotatably connected to a third connecting rod (407); one end of the third connecting rod (407) away from the second slider (406) is rotatably connected to a connecting plate (408); two ends of the connecting plate (408) are rotatably connected to a plurality of fourth connecting rods (409); one end of the fourth connecting rod (409) away from the connecting plate (408) is rotatably connected to a clamping claw (410); one end of the clamping claw (410) close to the connecting plate (408) is rotatably connected to a fixing plate (411); the bottom of the fixing plate (411) is fixedly connected to the clamping frame (412); and the middle of the clamping frame (412) is rotatably connected to the third transmission shaft (402).

4. A mahjong machine frame polishing device according to claim 3, characterized in that: The number of teeth of the rack (205) is one quarter of the number of teeth of the third gear (401).

5. A mahjong machine frame polishing device according to claim 4, characterized in that: A dust collection box (203) is provided at the lower end of the movable frame (2), and the dust collection box (203) is slidably connected to the movable frame (2) via a sliding groove.

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