A forklift counterweight outer shell polishing device

Abstract

The present invention belongs to the field of casting polishing, and specifically is a forklift counterweight outer shell polishing device, including a main body carrying frame, a transport mechanism, a grinding mechanism and a rotating mechanism. In view of the problems of low efficiency and unstable grinding quality of manual grinding by operators, a magnetic field adsorption is adopted in combination with a spiral shaft grinding method, a magnetic absorption grinding device is set, and the traditional pressing type of grinding is abandoned, so as to achieve the technical effect of uniform grinding of multiple planes, solve the technical problems of low efficiency and unstable grinding quality of manual grinding, and greatly improve the efficiency and quality of grinding; in view of the problems of excessive labor and safety hazards when turning over and clamping during grinding, a multiple grinding method is adopted, a rotating mechanism is set, the direction of the workpiece is changed, and multiple surfaces are polished to achieve the technical effect of full coverage of surface grinding.

Description

Technical Field

[0001] The invention belongs to the technical field of casting polishing, and in particular relates to a polishing device for an outer shell of a forklift counterweight block. Background Art

[0002] The counterweight of a forklift is mainly used to increase the stability and carrying capacity of the forklift. By increasing the total weight of the forklift, the counterweight helps prevent the forklift from tilting or losing balance when lifting heavy objects, improving operational safety. The counterweight can also optimize the center of gravity of the forklift, keeping it stable under different working conditions, thereby improving work efficiency and operating accuracy. The counterweight of a forklift is generally made by casting. Cast iron or steel is selected as the material according to demand. After melting and pouring, the metal is cooled and solidified in the mold. After completion, the mold is removed and surface treatment is performed. This manufacturing method is simple and efficient, suitable for large-scale production, and can effectively increase the stability and carrying capacity of the forklift.

[0003] Since the counterweight is heavy, most of them are placed directly on the ground and polished by operators using hand-held grinders, which is inconvenient to operate and poses a safety hazard; the counterweight is heavy, and if it is turned over and clamped during the grinding process, the workload is too large and there is a safety hazard; workers use hand-held angle grinders to perform reciprocating grinding, but this method makes it difficult to control the grinding force, the grinding accuracy is unstable, and dents are easily produced, making it impossible to achieve uniform surface grinding roughness. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a forklift counterweight block outer shell polishing device. According to the problems of low efficiency and unstable polishing quality of manual polishing by operators, a magnetic field adsorption and spiral shaft polishing method is adopted, and a magnetic suction polishing device is set. The traditional press-type polishing method is abandoned, and the technical effect of uniform polishing of multiple planes is achieved, which solves the technical problems of low efficiency and unstable polishing quality of manual polishing, and greatly improves the efficiency and quality of polishing; according to the problems of excessive labor and safety hazards during flipping and clamping during the polishing process, multiple polishing methods are adopted, a rotating mechanism is set, the direction of the workpiece is changed, and multiple surfaces are polished to achieve the technical effect of full coverage of the surface polishing.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a forklift counterweight outer shell polishing device, including a main body carrying frame, a transport mechanism, a grinding mechanism and a rotating mechanism, the main body carrying frame is installed on the ground, the transport mechanism is arranged on one side of the main body carrying frame, the grinding mechanism is arranged in the main body carrying frame, and the rotating mechanism is arranged on the other side of the main body carrying frame.

[0006] Furthermore, an internal conveyor belt is provided in the main body carrying frame, and three groups of the internal conveyor belts are provided. The three groups of the internal conveyor belts are arranged adjacent to each other, and the internal conveyor belts are used to transport the workpieces for polishing.

[0007] Furthermore, the transport mechanism includes a loading conveyor belt, a unloading conveyor belt, a lifting hydraulic arm, a lifting conveyor belt, a feeding conveyor belt and a transport frame, the transport frame is arranged on the main body carrying frame, the loading conveyor belt is arranged in the main body carrying frame, the unloading conveyor belt is arranged in the main body carrying frame, the unloading conveyor belt is arranged below the loading conveyor belt, one end of the lifting conveyor belt is rotatably arranged on the transport frame, the lifting hydraulic arm is arranged in the transport frame, the telescopic end of the lifting hydraulic arm is rotatably connected to the other end of the lifting conveyor belt, the feeding conveyor belt is arranged on one side of the lifting conveyor belt, and the lifting hydraulic arm is used to change the angle of the lifting conveyor belt to realize automatic loading and unloading operations.

[0008] Furthermore, the rotating mechanism includes a rotating frame, a rotating base and a rotating push arm, the rotating frame is arranged on one side of the main body mounting frame, the rotating base is arranged in the rotating frame, the rotating push arm is arranged on one side of the rotating base, and an end magnet is provided at the end of the rotating push arm, and the end magnet is an electromagnet. The rotating base is a prior art, and the workpiece can be rotated 90 degrees using the rotating base, which is convenient for continuing to polish the unpolished surface.

[0009] As a further preferred embodiment of the present invention, the polishing mechanism includes a polishing transmission device, a magnetic polishing array and a polishing frame, the polishing frame is fixedly connected to the main body carrying frame, the polishing transmission device is arranged on the polishing frame, and the magnetic polishing array is transmission-connected to the polishing transmission device.

[0010] The gear train is a gear that is coupled to the drive gear of the drive gearbox and the control gear of the drive gearbox, and the control gear is coupled to the drive gearbox, and the control gear is coupled to the drive gearbox, and the control gear is coupled to the drive gearbox.

[0011] As a further preferred embodiment of the present invention, the magnetic grinding array is composed of multiple groups of magnetic grinding devices, and the magnetic grinding devices include an upper connecting arm, a side support arm, a carrying shaft, a middle fixed base, an electromagnetic base, a grinding consumable, a wedge-shaped slider, an outer spring, an inner spring, a trapezoidal extrusion and a vertical limit shaft. The upper connecting arm is slidably connected to the grinding frame, the side support arms are symmetrically arranged at the bottom of the upper connecting arm, the two ends of the carrying shaft are fixedly connected to the symmetrical side support arms, the middle fixed base is arranged in the middle of the carrying shaft, the electromagnetic base is slidably arranged on the carrying shaft, and the grinding consumable It is arranged at the bottom of the electromagnetic base, the bottom of the wedge-shaped slider is engaged with the top of the electromagnetic base, one end of the outer spring is fixed to the inner side of the side support arm, the other end of the outer spring is fixed to one side of the electromagnetic base, one end of the inner spring is fixed to the other side of the electromagnetic base, the other end of the inner spring is fixed to the side of the middle fixed base, the bottom of the vertical limit shaft is arranged at the center of the top surface of the middle fixed base, the trapezoidal extrusion is slidably connected to the vertical limit shaft, and the trapezoidal extrusion is also slidably connected to the wedge-shaped slider, and a connecting screw is arranged on the top of the trapezoidal extrusion.

[0012] As a further preferred embodiment of the present invention, a follower bevel gear is rotatably provided on the grinding frame, and the follower bevel gear is meshingly connected with the transmission bevel gear. A spline shaft is rotatably provided on the upper connecting arm, and the spline shaft is slidably connected to the bottom end of the follower bevel gear, and the spline shaft is transmission-connected to the connecting screw.

[0013] As a further preferred embodiment of the present invention, a winding coil is provided in the electromagnetic base.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: The beneficial effects of the forklift counterweight outer shell polishing device provided by the present solution are as follows:

[0015] (1) In view of the low efficiency and unstable grinding quality of manual grinding by operators, a magnetic field adsorption combined with a spiral shaft grinding method is adopted, and a magnetic absorption grinding device is set up, abandoning the traditional press-type grinding method, achieving the technical effect of multi-plane uniform grinding, solving the technical problems of low efficiency and unstable grinding quality of manual grinding, and greatly improving the efficiency and quality of grinding;

[0016] (2) Setting up a transport mechanism and using the lifting hydraulic arm to change the angle of the lifting conveyor belt can realize automatic loading and unloading operations, eliminating the steps of manual handling, realizing automated transportation, and greatly improving processing efficiency;

[0017] (3) Setting up a magnetic grinding array. By combining and installing multiple magnetic grinding devices, the surface of the workpiece can be adsorbed and polished. At the same time, the protrusions on the surface of the workpiece can be avoided automatically to avoid getting stuck during grinding, which causes the equipment to stop;

[0018] (4) A magnetic grinding device is provided, and an electromagnet is formed by a winding coil and an electromagnetic base, which can be used to adsorb to the surface of the workpiece to realize the magnetic grinding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a forklift counterweight outer shell polishing device proposed by the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the transport mechanism;

[0021] Figure 3 It is a structural schematic diagram of the rotating mechanism;

[0022] Figure 4 It is a structural schematic diagram of the grinding mechanism;

[0023] Figure 5 It is a schematic diagram of the transmission relationship between the grinding transmission device and the magnetic grinding device;

[0024] Figure 6 It is a schematic diagram of the position of the grinding transmission device;

[0025] Figure 7 An exploded view of part of the structure of the grinding transmission device;

[0026] Figure 8 It is a partial structural schematic diagram of the magnetic grinding device;

[0027] Fig. 9 It is a cross-sectional view of a magnetic grinding device;

[0028] Fig.10 This is an exploded view of the electromagnetic base.

[0029] Among them, 1. Main body carrying frame, 2. Transport mechanism, 3. Grinding mechanism, 4. Rotating mechanism, 5. Workpiece, 101. Internal conveyor belt, 201. Loading conveyor belt, 202. Unloading conveyor belt, 203. Lifting hydraulic arm, 204. Lifting conveyor belt, 205. Feeding conveyor belt, 206. Transport frame, 301. Grinding transmission device, 302. Magnetic grinding array, 303. Grinding frame, 304. Transmission main rack, 305. Follower rack, 306. Transmission slide, 307. Transmission gear, 308. Main transmission shaft, 309. Transmission bevel gear, 310. Transmission pendulum Arm, 311, grinding motor, 312, limiting pulley, 313, magnetic grinding device, 314, upper connecting arm, 315, side support arm, 316, mounting shaft, 317, middle fixed base, 318, electromagnetic base, 319, grinding consumables, 320, wedge slider, 321, outer spring, 322, inner spring, 323, trapezoidal extrusion, 324, vertical limiting shaft, 325, follower bevel gear, 326, connecting screw, 327, winding coil, 328, spline shaft, 401, rotating frame, 402, rotating base, 403, rotating push arm, 404, end magnet.

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specific implementation modes of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] like Figure 1As shown, the present invention provides a forklift counterweight outer shell polishing device, including a main body carrying frame 1, a transport mechanism 2, a grinding mechanism 3 and a rotating mechanism 4, the main body carrying frame 1 is installed on the ground, the transport mechanism 2 is arranged on one side of the main body carrying frame 1, the grinding mechanism 3 is arranged in the main body carrying frame 1, and the rotating mechanism 4 is arranged on the other side of the main body carrying frame 1; an internal conveying belt 101 is arranged in the main body carrying frame 1, and the internal conveying belt 101 is provided with three groups, and the three groups of internal conveying belts 101 are arranged adjacent to each other.

[0034] like Figure 1 and Figure 2 As shown, the transport mechanism 2 includes a loading conveyor belt 201, a unloading conveyor belt 202, a lifting hydraulic arm 203, a lifting conveyor belt 204, a feeding conveyor belt 205 and a transport frame 206. The transport frame 206 is arranged on the main carrying frame 1, the loading conveyor belt 201 is arranged in the main carrying frame 1, the unloading conveyor belt 202 is arranged in the main carrying frame 1, the unloading conveyor belt 202 is arranged below the loading conveyor belt 201, one end of the lifting conveyor belt 204 is rotatably arranged on the transport frame 206, the lifting hydraulic arm 203 is arranged in the transport frame 206, the telescopic end of the lifting hydraulic arm 203 is rotatably connected to the other end of the lifting conveyor belt 204, and the feeding conveyor belt 205 is arranged on one side of the lifting conveyor belt 204.

[0035] like Figure 1 and Figure 3 As shown, the rotating mechanism 4 includes a rotating frame 401, a rotating base 402 and a rotating push arm 403. The rotating frame 401 is arranged on one side of the main body carrying frame 1, the rotating base 402 is arranged in the rotating frame 401, the rotating push arm 403 is arranged on one side of the rotating base 402, and an end magnet 404 is provided at the end of the rotating push arm 403, and the end magnet 404 is an electromagnet.

[0036] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the grinding mechanism 3 includes a grinding transmission device 301, a magnetic grinding array 302 and a grinding frame 303, the grinding frame 303 is fixedly connected to the main body carrying frame 1, the grinding transmission device 301 is arranged on the grinding frame 303, and the magnetic grinding array 302 is transmission-connected to the grinding transmission device 301; the grinding transmission device 301 includes a main transmission rack 304, a follower rack 305, a transmission slide 306, a transmission gear 307, a main transmission shaft 308, a transmission bevel gear 309, a transmission swing arm 310 and a grinding motor 311, the main transmission rack 304 is slidably arranged on the side wall of the grinding frame 303, and the follower rack 305 is slidably arranged on the grinding frame 30 3, a main transmission shaft 308 is rotatably arranged on the grinding frame 303, a transmission gear 307 is arranged at the end of the main transmission shaft 308, a transmission main rack 304 is slidably meshed with the transmission gear 307, a follower rack 305 is slidably meshed with the transmission gear 307, a transmission slide 306 is arranged on the side wall of the transmission main rack 304, a grinding motor 311 is arranged on the grinding frame 303, one end of a transmission swing arm 310 is fixedly connected to the output end of the grinding motor 311, and a limiting pulley 312 is rotatably arranged at the other end of the transmission swing arm 310, and the limiting pulley 312 is slidably arranged in the transmission slide 306; the magnetic absorption grinding array 302 is composed of a plurality of groups of magnetic absorption grinding devices 313 The magnetic grinding device 313 comprises an upper connecting arm 314, a side support arm 315, a carrying shaft 316, a middle fixed base 317, an electromagnetic base 318, a grinding consumable 319, a wedge surface slider 320, an outer spring 321, an inner spring 322, a trapezoidal extrusion piece 323 and a vertical limit shaft 324. The upper connecting arm 314 is slidably connected to the grinding frame 303, the side support arms 315 are symmetrically arranged at the bottom of the upper connecting arm 314, the two ends of the carrying shaft 316 are fixedly connected to the symmetrical side support arms 315, the middle fixed base 317 is arranged in the middle of the carrying shaft 316, the electromagnetic base 318 is slidably arranged on the carrying shaft 316, and the grinding consumable 319 is arranged on the electromagnetic base At the bottom of the electromagnetic base 318, the bottom of the wedge slider 320 is engaged with the top of the electromagnetic base 318, one end of the outer spring 321 is fixed to the inner side of the side support arm 315, the other end of the outer spring 321 is fixed to one side of the electromagnetic base 318, one end of the inner spring 322 is fixed to the other side of the electromagnetic base 318, the other end of the inner spring 322 is fixed to the side of the middle fixed base 317, the bottom of the vertical limit shaft 324 is set at the center of the top surface of the middle fixed base 317, the trapezoidal extrusion piece 323 is slidably connected with the vertical limit shaft 324, the trapezoidal extrusion piece 323 is also slidably connected with the wedge slider 320, and the top of the trapezoidal extrusion piece 323 is provided with a connecting screw 326;A follower bevel gear 325 is rotatably provided on the polishing frame 303, and the follower bevel gear 325 is meshed and connected with the transmission bevel gear 309. A spline shaft 328 is rotatably provided on the upper connecting arm 314, and the spline shaft 328 is slidably connected with the bottom end of the follower bevel gear 325. The spline shaft 328 is transmission-connected with the connecting screw 326, and a winding coil 327 is provided in the electromagnetic base 318. ;

[0037] When in use, the workpiece 5 is first transported by the transport mechanism 2, and the lifting hydraulic arm 203 is extended to drive the lifting conveyor belt 204 to rotate, so that the loading conveyor belt 201 and the lifting conveyor belt 204 remain horizontal, and then the workpiece 5 is sent into the rotating mechanism 4 through the loading conveyor belt 201, the lifting conveyor belt 204, the feeding conveyor belt 205, the internal conveyor belt 101 and the rotating base 402. At this time, the rotating push arm 403 is started, the rotating push arm 403 is extended and contacts the side wall of the workpiece 5, and the end magnet 404 at the end of the rotating push arm 403 is used to attract the workpiece 5, and then the rotating push arm 403 continues to extend, and at the same time cooperates with the feeding conveyor belt 205 to flip, and the workpiece 5 is sent into the main carrying frame 1; the grinding operation begins, and the winding coil 3 27 is connected to the current, the winding coil 327 and the electromagnetic base 318 form a coil core electromagnet, and the electromagnetic base 318 at this time acts as an electromagnet. When the workpiece 5 enters the influence area of ​​the electromagnetic base 318, the electromagnetic base 318 is adsorbed to the surface of the workpiece 5, and the magnetic grinding device 313 slides as a whole, and the grinding motor 311 is started at the same time. The grinding motor 311 drives the transmission swing arm 310 to rotate, and the rotation of the transmission swing arm 310 drives the transmission slide 306 to slide up and down through the limit pulley 312. The up and down sliding of the transmission slide 306 drives the transmission main rack 304 to slide up and down, and the up and down sliding of the transmission main rack 304 drives the transmission gear 307 to rotate forward and reversely, and the forward and reverse rotation of the transmission gear 307 drives the follower auxiliary rack 305 to rotate upward. The transmission gear 307 rotates forward and reversely to drive the main transmission shaft 308 to rotate forward and reversely, the main transmission shaft 308 rotates forward and reversely to drive the transmission bevel gear 309 to rotate forward and reversely, the transmission bevel gear 309 rotates forward and reversely to drive the follower bevel gear 325 to rotate forward and reversely, the follower bevel gear 325 rotates forward and reversely to drive the spline shaft 328 to rotate forward and reversely, the spline shaft 328 rotates forward and reversely to drive the connecting screw rod 326 to move up and down, the connecting screw rod 326 moves up and down to drive the trapezoidal extrusion piece 323 to move up and down, the trapezoidal extrusion piece 323 moves up and down to drive the wedge surface slider 320 to reciprocate horizontally, because the wedge surface slider 320 is connected to the electromagnetic base 318 and the grinding consumable 319, the wedge surface slider 320 reciprocates horizontally to drive the grinding consumable 319. 9 Horizontal reciprocating motion, using the grinding consumables 319 to grind the workpiece 5. When the grinding is completed, the end magnet 404 releases the workpiece 5, the rotating push arm 403 shrinks, the internal conveyor belt 101 transports forward, and the workpiece 5 is sent to the rotating base 402. After the rotating base 402 rotates the workpiece 5 90 degrees, the rotating push arm 403 extends, and the end magnet 404 fixes and adsorbs the workpiece 5 again. Then, the side wall of the workpiece 5 that has been grinded is grinded separately, and all the grinding work can be completed. After that, the lifting hydraulic arm 203 is shortened, the lifting conveyor belt 204 rotates and is connected to the unloading conveyor belt 202, and the workpiece 5 is transported out through the internal conveyor belt 101, the feeding conveyor belt 205, the lifting conveyor belt 204 and the unloading conveyor belt 202.

[0038] The above is the specific working process of the present invention, and you can repeat this step next time you use it.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention.

[0041] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A forklift counterweight outer shell polishing device, characterized in that: The invention comprises a main body carrying frame (1), a transport mechanism (2), a grinding mechanism (3) and a rotating mechanism (4), wherein the main body carrying frame (1) is installed on the ground, the transport mechanism (2) is arranged on one side of the main body carrying frame (1), the grinding mechanism (3) is arranged inside the main body carrying frame (1), and the rotating mechanism (4) is arranged on the other side of the main body carrying frame (1); the grinding mechanism (3) comprises a grinding transmission device (301), a magnetic grinding array (302) and a grinding frame The grinding frame (303) is fixedly connected to the main body carrying frame (1); the grinding transmission device (301) is arranged on the grinding frame (303); the magnetic grinding array (302) is connected to the grinding transmission device (301) in a transmission manner; the grinding transmission device (301) comprises a main transmission rack (304), a follower rack (305), a transmission slide groove (306), a transmission gear (307), a main transmission shaft (308), and a transmission bevel gear (309). , a transmission swing arm (310) and a grinding motor (311), the main transmission rack (304) is slidably disposed on the side wall of the grinding frame (303), the follower rack (305) is slidably disposed on the side wall of the grinding frame (303), the main transmission shaft (308) is rotatably disposed on the grinding frame (303), the transmission gear (307) is disposed at the end of the main transmission shaft (308), the main transmission rack (304) is slidably meshed with the transmission gear (307), the The follower rack (305) is slidably meshed with the transmission gear (307), the transmission slide groove (306) is arranged on the side wall of the transmission main rack (304), the grinding motor (311) is arranged on the grinding frame (303), one end of the transmission swing arm (310) is fixedly connected to the output end of the grinding motor (311), and the other end of the transmission swing arm (310) is rotatably provided with a limiting pulley (312), and the limiting pulley (312) is slidably arranged in the transmission slide groove (306);The magnetic grinding array (302) is composed of a plurality of magnetic grinding devices (313), wherein the magnetic grinding devices (313) include an upper connecting arm (314), a side support arm (315), a carrying shaft (316), a middle fixed base (317), an electromagnetic base (318), a grinding consumable (319), a wedge-surface slider (320), an outer spring (321), an inner spring (322), a trapezoidal extrusion piece (323) and a vertical limit shaft (324), wherein the upper connecting arm (314) is slidably connected to the grinding frame (303), the side support arms (315) are symmetrically arranged at the bottom of the upper connecting arm (314), the two ends of the carrying shaft (316) are fixedly connected to the symmetrical side support arms (315), the middle fixed base (317) is arranged at the middle of the carrying shaft (316), the electromagnetic base (318) is slidably arranged on the carrying shaft (316), and the The grinding consumable (319) is arranged at the bottom of the electromagnetic base (318), the bottom of the wedge surface slider (320) is engaged with the top of the electromagnetic base (318), one end of the outer spring (321) is fixed to the inner side of the side support arm (315), the other end of the outer spring (321) is fixed to one side of the electromagnetic base (318), one end of the inner spring (322) is fixed to the other side of the electromagnetic base (318), the other end of the inner spring (322) is fixed to the side of the middle fixed base (317), the bottom of the vertical limit shaft (324) is arranged at the center of the top surface of the middle fixed base (317), the trapezoidal extrusion piece (323) is slidably connected to the vertical limit shaft (324), the trapezoidal extrusion piece (323) is also slidably connected to the wedge surface slider (320), and the top of the trapezoidal extrusion piece (323) is provided with a connecting screw (326). ; 2. A forklift counterweight outer shell polishing device according to claim 1, characterized in that: An internal conveying belt (101) is provided inside the main body carrying frame (1), and three groups of the internal conveying belts (101) are provided. The three groups of the internal conveying belts (101) are arranged adjacent to each other.

3. A forklift counterweight outer shell polishing device according to claim 2, characterized in that: The transport mechanism (2) comprises a loading conveyor belt (201), a unloading conveyor belt (202), a lifting hydraulic arm (203), a lifting conveyor belt (204), a feeding conveyor belt (205) and a transport frame (206); the transport frame (206) is arranged on the main body carrying frame (1); the loading conveyor belt (201) is arranged in the main body carrying frame (1); the unloading conveyor belt (202) is arranged in the main body carrying frame (1); the unloading conveyor belt (202) is arranged below the loading conveyor belt (201); one end of the lifting conveyor belt (204) is rotatably arranged on the transport frame (206); the lifting hydraulic arm (203) is arranged in the transport frame (206); the telescopic end of the lifting hydraulic arm (203) is rotatably connected to the other end of the lifting conveyor belt (204); and the feeding conveyor belt (205) is arranged on one side of the lifting conveyor belt (204).

4. A forklift counterweight outer shell polishing device according to claim 3, characterized in that: The rotating mechanism (4) comprises a rotating frame (401), a rotating base (402) and a rotating push arm (403); the rotating frame (401) is arranged on one side of the main body carrying frame (1); the rotating base (402) is arranged in the rotating frame (401); the rotating push arm (403) is arranged on one side of the rotating base (402); an end magnet (404) is arranged at the end of the rotating push arm (403); the end magnet (404) is an electromagnet.

5. A forklift counterweight outer shell polishing device according to claim 4, characterized in that: A follower bevel gear (325) is rotatably provided on the polishing frame (303), and the follower bevel gear (325) is meshingly connected with the transmission bevel gear (309). A spline shaft (328) is rotatably provided on the upper connecting arm (314), and the spline shaft (328) is slidably connected to the bottom end of the follower bevel gear (325), and the spline shaft (328) is transmission-connected to the connecting screw rod (326).

6. A forklift counterweight outer shell polishing device according to claim 5, characterized in that: A winding coil (327) is provided inside the electromagnetic base (318).

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