An automatic polishing device for elevator guide rail production and a method of using the same

Abstract

The application discloses an automatic polishing device for elevator guide rail production, which comprises a hoisting fixing part and an all-direction polishing part. The hoisting fixing part comprises a hoisting frame and a hoisting arm. A moving screw rod is arranged in the middle of the hoisting frame, and a screw rod motor is arranged at one end of the hoisting frame. The hoisting arm comprises a moving piece, a telescopic hoisting rod, a cylinder and a fixing assembly. The fixing assembly is fixed with an elevator guide rail. The all-direction polishing part comprises a multifunctional box body base, a backing plate and a mounting frame. A plurality of polishing assemblies are arranged in the inner side of the all-direction polishing part. A plurality of nozzles are arranged on the mounting frame. The automatic hoisting fixing part and the all-direction polishing part can realize the quick, continuous and uniform polishing of the elevator guide rail. The all-direction polishing part is designed so that each corner of the elevator guide rail can be accurately polished, including the bottom, the side surface and the arc corner part. The built-in pollution collecting layer and water storage layer are designed so that the waste and dust generated in the polishing process can be effectively collected and discharged through the pollution discharge port.

Description

Technical Field

[0001] This invention specifically relates to an automatic grinding device for elevator guide rail production and its usage method. Background Technology

[0002] Elevator guide rails are a crucial component of elevator systems. They are primarily used to guide and support the elevator car and counterweight system to move safely and smoothly vertically within the hoistway. Elevator guide rails mainly come in various types, including T-shaped guide rails, hollow guide rails, and cold-drawn guide rails. During the manufacturing process, elevator guide rails require surface treatment to improve their corrosion resistance and reduce the coefficient of friction. This includes grinding, polishing, and coating treatments. Grinding, in particular, improves the surface smoothness of the guide rails, ensuring the smoothness and safety of elevator operation.

[0003] For example, Chinese patent CN221583036U discloses an elevator guide rail grinding device, including a fixed frame. A placement component is fixedly connected to the bottom surface of the fixed frame. Fixed plates are fixedly connected to the front and rear positions of the top of the placement component. Screws are threaded onto the top surfaces of both fixed plates, and pressure plates are rotatably connected to the bottom ends of both screws. Cylinders are fixedly installed on the left and right sides of the lower top surface of the fixed frame, and grinding components are fixedly connected to the output ends of the two cylinders. This patent uses the placement component to position and fix the elevator guide rail, utilizes the grinding component for downward movement, and sprays water in an atomized form onto the elevator guide rail during grinding to reduce dust and mist generated during grinding, while also lowering the grinding temperature of the elevator guide rail. However, in actual use, the following problems still exist.

[0004] The aforementioned patent has limitations in that the spacing between the grinding cylinders cannot be adjusted during use, making it difficult to handle elevator guide rails of different sizes. Furthermore, the grinding cylinders and curved grinding plates can only grind the upper half of the elevator guide rail, failing to achieve all-around grinding. Additionally, due to the length of the elevator guide rail itself, clamping both ends with the clamping plate requires matching longer equipment, resulting in higher costs. Moreover, the fixing plates on both sides cannot be adjusted and fixed according to the size of the elevator guide rail.

[0005] Therefore, it is necessary to invent an automatic grinding device for elevator guide rail production and its usage method to solve the above problems. Summary of the Invention

[0006] (a) Purpose of the invention

[0007] The purpose of this invention is to provide an automatic grinding device for elevator guide rail production and its usage method. By setting an adjustment device to fix and position different elevator guide rails and perform all-round grinding, the above-mentioned shortcomings in the technology can be solved.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: an automatic grinding device for elevator guide rail production, comprising a hoisting and fixing part and an all-round grinding part, wherein the hoisting range of the hoisting and fixing part covers the working range of the all-round grinding part;

[0010] The hoisting and fixing part includes a hoisting frame and two sets of symmetrical hoisting arms. A movable screw is installed in the middle of the hoisting frame, and a screw motor is correspondingly provided at one end. The hoisting arm includes a movable component set on the movable screw. A telescopic rod is installed at the lower part of the movable component. A cylinder is installed at the top of the movable component. A fixing component is provided at the end of the telescopic rod. An elevator guide rail is fixed between the fixing components on both sides.

[0011] The all-around polishing unit includes a multi-functional housing base. The top two sides of the multi-functional housing base are provided with pads. Symmetrical mounting brackets are installed on the top of the pads on both sides. The mounting brackets on both sides are cylindrical in shape. Multiple polishing components are installed inside the mounting brackets. All of the multiple polishing components point to the center of the mounting bracket. At the same time, multiple nozzles are also provided on the mounting brackets. The nozzles and the polishing components all act on the elevator guide rail.

[0012] The moving part has a moving screw hole in the middle that mates with the moving lead screw. The bottom side of the telescopic rod is flat and is fixed to the fixing component. The fixing component includes a mounting plate that is inserted into the interior of both ends of the elevator guide rail. The shape of the mounting plate is the same as that of the interior of both ends of the elevator guide rail. It has receiving grooves on both sides and top. A limiting plate is provided at the opening of the receiving groove. A telescopic block is installed in the receiving groove. A baffle that is limited by the limiting plate is provided at the bottom of the telescopic block. A groove is hollowed out on the inner side of the telescopic block. Multiple compression springs are provided in the groove. The bottom of the compression springs is fixedly connected to the bottom of the receiving groove. An elastic top block is fixed on the top of the telescopic block. The elastic top block acts on the arc groove inside the elevator guide rail and is placed outside the limiting plate.

[0013] Each set of mounting brackets consists of multiple sets of arc-shaped plates, with connecting plates between the multiple sets of arc-shaped plates, and connecting bridges are also installed between the arc-shaped plates on both sides;

[0014] The grinding assembly includes a bottom grinding component, a side grinding component, and an arc-angle grinding component. The bottom grinding component is mounted on the connecting bridge, the side grinding component is mounted on the arc-shaped plate, and the arc-angle grinding component is mounted on the connecting plate. Both the bottom grinding component and the side grinding component include a base plate. A telescopic rod is mounted on the base plate, and a clamp is rotatably mounted at the end of the telescopic rod. A grinding cylinder is clamped inside the clamp. The arc-angle grinding component has the same structure as the bottom grinding component and the side grinding component, and its end is provided with two sets of clamps, and two sets of grinding cylinders are clamped inside.

[0015] The multifunctional box base has a dirt collection layer inside, and a water storage layer at the bottom of the dirt collection layer. The water storage layer wraps around the outside of the dirt collection layer, and a dirt collection port is provided at the top of the dirt collection layer. The multifunctional box base has a drain port and a water inlet on its side, and the drain port and the water inlet correspond to the dirt collection layer and the water storage layer, respectively.

[0016] Preferably, the pad is disposed on both sides of the sewage collection port, and the pad at the sewage collection port is set as an inclined surface, and the sewage collection port is also an inclined surface.

[0017] Preferably, the top of the two curved plate assemblies has a partial space, the grinding assembly is installed on the curved plate, the connecting plate and the connecting bridge, and multiple nozzles are installed on the curved plate.

[0018] Preferably, the arc-angle grinding part has the same structure as the bottom grinding part and the side grinding part, but the size and installation position of the clamp and the grinding cylinder are different.

[0019] Preferably, the elevator guide rail passes through the mounting bracket, and the grinding assembly grinds the elevator guide rail from all directions. The nozzle is connected to the interior of the multi-functional box base through the mounting bracket and the pad, and the multiple nozzles are in the shape of a bucket.

[0020] A method for using an automatic grinding device for elevator guide rail production includes the following steps:

[0021] S1. First, the two sets of lifting arms move on the lifting frame and drive the telescopic boom to extend and retract, so that the end fixing components are fitted into the inside of both ends of the elevator guide rail.

[0022] S2. Release the telescopic block on the fixing component so that it presses against the groove inside the elevator guide rail, thereby fixing the elevator guide rail from both ends.

[0023] S3. Lift the telescopic boom to move the elevator guide rail to the mounting frame. When the elevator guide rail enters the mounting frame from the end, adjust the grinding component so that the end grinding cylinder is attached to the outer surface of the elevator guide rail. Start the grinding component and slowly move the elevator guide rail inside the mounting frame.

[0024] S4. Inject coolant or cleaning fluid into the water storage layer through the inlet, and at the same time start the nozzle to spray coolant or cleaning fluid onto the outer surface of the elevator guide rail to reduce the temperature of the outer surface of the elevator guide rail during polishing. Move the elevator guide rail until it completely passes through the mounting bracket.

[0025] S5. After grinding, the wastewater in the dirt collection layer is discharged through the drain outlet.

[0026] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of the present invention are:

[0027] 1. Through the automated hoisting and fixing part and the all-round grinding part, the equipment of this invention can realize the rapid, continuous and uniform grinding of elevator guide rails, which significantly improves production efficiency. The automatic control of the movement and grinding process reduces the need for manual operation and reduces labor intensity.

[0028] 2. This invention, through its all-around grinding design, ensures that every corner of the elevator guide rail can be precisely ground, including the bottom, sides, and curved corners, thus ensuring the overall quality and consistency of the product.

[0029] 3. The invention features a built-in dirt collection layer and water storage layer, which allows waste and dust generated during the grinding process to be effectively collected and discharged through the drain outlet. At the same time, the spray nozzle system can use coolant or cleaning fluid for spraying, reducing environmental pollution and keeping the work area clean. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the overall structure of the hoisting and fixing part of the present invention;

[0033] Figure 3 This is a schematic diagram of the overall structure of the lifting arm of the present invention;

[0034] Figure 4 This is a schematic diagram of the overall disassembled structure of the fixing component of the present invention;

[0035] Figure 5 This is a schematic diagram of the overall structure of the all-around grinding part of the present invention;

[0036] Figure 6 For the present invention Figure 5 Schematic diagram of part A in the middle;

[0037] Figure 7 This is a partial structural diagram of the all-around polishing part of the present invention;

[0038] Figure 8 For the present invention Figure 7 Schematic diagram of Part B in the middle section;

[0039] Figure 9 This is a schematic cross-sectional view of the multifunctional box base structure of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Lifting frame; 11. Moving lead screw; 12. Lead screw motor; 2. Lifting arm; 21. Moving part; 211. Moving screw hole; 22. Telescopic boom; 23. Cylinder; 3. Fixing assembly; 31. Insert plate; 32. Receiving groove; 33. Limiting plate; 34. Telescopic block; 35. Baffle; 36. Groove; 37. Compression spring; 38. Elastic top block; 4. Elevator guide rail; 5. Multifunctional box base; 51. Pad; 52. Sludge collection layer; 53. Water storage layer; 54. Sludge collection port; 55. Sludge discharge port; 56. Water inlet; 6. Mounting bracket; 61. Curved plate; 62. Connecting plate; 63. Connecting bridge; 7. Grinding assembly; 71. Bottom grinding part; 72. Side grinding part; 73. Arc corner grinding part; 74. Base plate; 75. Telescopic rod; 76. Clamp; 77. Grinding cylinder; 8. Nozzle. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] This invention provides, for example Figure 1-9 The automatic grinding device for elevator guide rail production shown includes a hoisting and fixing part and an all-round grinding part. The hoisting and fixing part covers the working range of the all-round grinding part.

[0044] Specifically, the hoisting and fixing part includes a hoisting frame 1 and two sets of symmetrical hoisting arms 2. A movable screw 11 is installed in the middle of the hoisting frame 1, and a screw motor 12 is provided at one end. The hoisting arm 2 includes a movable part 21 set on the movable screw 11. A telescopic rod 22 is installed at the lower part of the movable part 21. A cylinder 23 is installed at the top of the movable part 21. A fixing component 3 is provided at the end of the telescopic rod 22. An elevator guide rail 4 is fixed between the two fixing components 3.

[0045] In this invention, before grinding, the equipment needs to be started to ensure that all motors, cylinders, and hydraulic systems are in standby mode. Check whether the components such as the hoisting frame 1, the moving lead screw 11, the hoisting arm 2, and the telescopic boom 22 are in good working order, and confirm that the mounting frame 6 and the grinding assembly 7 are ready.

[0046] In this invention, the hoisting and fixing part is mainly used to fix and transport the elevator guide rail 4, so that it can slowly pass through the grinding area during the grinding process. The hoisting arm 2 is used to move it instead of moving the grinding device. The movement path of the elevator guide rail 4 can be actively controlled. The hoisting arm 2 can move in different directions through the telescopic rod 22 and the moving screw 11, which makes it easy to adjust the angle of the elevator guide rail 4 entering the grinding device so as to carry out all-round grinding.

[0047] Reference Figure 5-8 The all-around polishing unit includes a multi-functional box base 5. The top of the multi-functional box base 5 is provided with pads 51 on both sides. Symmetrical mounting brackets 6 are installed on the top of the pads 51 on both sides. The mounting brackets 6 are cylindrical in shape. Multiple polishing components 7 are installed inside the mounting brackets 6. The multiple polishing components 7 all point to the center of the mounting bracket 6. At the same time, multiple nozzles 8 are also provided on the mounting bracket 6. The nozzles 8 and the polishing components 7 all act on the elevator guide rail 4.

[0048] In this invention, the multi-functional box base 5 provides support during actual use and can collect dirt inside. It also stores coolant or cleaning agent inside for cooling or cleaning during the polishing process. The top mounting plate 51 of the multi-functional box base 5 fixes the mounting frame 6 on it. The mounting frames 6 on both sides are bent and wrapped towards the center in a circular shape, which allows for all-round polishing of the elevator guide rail 4. The polishing components 7 and the nozzle 8 are then installed inside the mounting frame 6 to achieve polishing without dead angles.

[0049] Reference Figure 1-4 The moving part 21 has a moving screw hole 211 in the middle that cooperates with the moving lead screw 11. The bottom side of the telescopic rod 22 is flat and fixed to the fixing component 3. The fixing component 3 includes a mounting plate 31, which is inserted into the interior of both ends of the elevator guide rail 4. The shape of the mounting plate 31 is the same as that of the interior of both ends of the elevator guide rail 4. It has a receiving groove 32 on both sides and the top. A limiting plate 33 is provided at the opening of the receiving groove 32. A telescopic block 34 is installed in the receiving groove 32. The bottom of the telescopic block 34 is provided with a baffle 35 that is limited by the limiting plate 33. The inner side of the telescopic block 34 has a groove 36. Multiple compression springs 37 are provided in the groove 36. The bottom of the compression springs 37 is fixedly connected to the bottom of the receiving groove 32. An elastic top block 38 is fixed on the top of the telescopic block 34. The elastic top block 38 acts on the arc groove inside the elevator guide rail 4 and is placed outside the limiting plate 33.

[0050] In this invention, the fixing component 3 is installed at the bottom of the telescopic rod 22, and one side of its bottom is flattened into a plane. The fixing component 3 is fixed to one side by bolts or welding. Then, the entire fixing component 3 is inserted into the inside of both ends of the elevator guide rail 4. At this time, the telescopic block 34 in the fixing component 3 is released. Under the action of the bottom compression spring 37, the telescopic block 34 extends the top elastic block 38 to the inside bend of the elevator guide rail 4, and at the same time fixes both ends of the elevator guide rail 4.

[0051] Reference Figure 5-8 The multi-functional box base 5 has a dirt collection layer 52 inside, and a water storage layer 53 is provided at the bottom of the dirt collection layer 52. The water storage layer 53 is wrapped around the outside of the dirt collection layer 52, and a dirt collection port 54 is provided at the top of the dirt collection layer 52. The multi-functional box base 5 has a drain port 55 and a water inlet 56 on the side, and the drain port 55 and the water inlet 56 correspond to the dirt collection layer 52 and the water storage layer 53, respectively.

[0052] Specifically, the pad 51 is set on both sides of the sewage collection port 54, and the pad 51 is set as an inclined surface at the sewage collection port 54, and the sewage collection port 54 is also an inclined surface.

[0053] In this invention, the multi-functional housing base 5 is provided with a dirt collection layer 52 and a water storage layer 53, and the water storage layer 53 is wrapped around the outside of the dirt collection layer 52. It is mainly connected to the water storage layer 53 through the top of the multi-functional housing base 5, and the cleaning agent or coolant in the water storage layer 53 is connected to the nozzle 8 for polishing and cleaning. A drain outlet 55 is provided on the outside of the dirt collection layer 52. When there is too much sewage in the dirt collection layer 52, it is discharged in time through the drain outlet 55. A water inlet 56 is also provided on the outside of the water storage layer 53. The cleaning agent or coolant is introduced through the water inlet 56 to ensure the continuous operation of the nozzle 8.

[0054] Specifically, each mounting bracket 6 is configured with multiple sets of arc-shaped plates 61, with connecting plates 62 between the multiple sets of arc-shaped plates 61, and connecting bridges 63 are also installed between the arc-shaped plates 61 on both sides. A portion of space is left at the top of the combination of the arc-shaped plates 61 on both sides. The grinding component 7 is installed on the arc-shaped plates 61, the connecting plates 62 and the connecting bridges 63, and multiple nozzles 8 are installed on the arc-shaped plates 61.

[0055] Specifically, the polishing assembly 7 includes a bottom polishing component 71, a side polishing component 72, and an arc-angle polishing component 73. The bottom polishing component 71 is mounted on the connecting bridge 63, the side polishing component 72 is mounted on the arc plate 61, and the arc-angle polishing component 73 is mounted on the connecting plate 62. Both the bottom polishing component 71 and the side polishing component 72 include a base plate 74. A telescopic rod 75 is mounted on the base plate 74. A clamp 76 is rotatably mounted at the end of the telescopic rod 75. A polishing cylinder 77 is clamped inside the clamp 76. The arc-angle polishing component 73 has the same structure as the bottom polishing component 71 and the side polishing component 72. It has two sets of clamps 76 at its end and two sets of polishing cylinders 77 are clamped inside.

[0056] Specifically, the arc-angle grinding part 73 has the same structure as the bottom grinding part 71 and the side grinding part 72, but the size and installation position of its clamp 76 and grinding cylinder 77 are different.

[0057] In this invention, the grinding component 7 is divided into a bottom grinding component 71, a side grinding component 72, and an arc-angle grinding component 73. The grinding component 7 is designed for the general shape of the elevator guide rail 4, so that it can be ground from all directions. The grinding cylinder of the bottom grinding component 71 is longer to meet the grinding process of elevator guide rails 4 of different sizes. The arc-angle grinding component 73 is equipped with two sets of clamps 76. The arc-shaped part is ground by using the angle gap between the two sets of clamps 76 to avoid missing any unground areas.

[0058] Specifically, the elevator guide rail 4 passes through the mounting bracket 6, and the grinding component 7 grinds the elevator guide rail 4 in all directions. The nozzle 8 is connected to the interior of the multi-functional box base 5 through the mounting bracket 6 and the pad 51. The multiple nozzles 8 are in the shape of a bucket.

[0059] A method for using an automatic grinding device for elevator guide rail production includes the following steps:

[0060] S1. The operator starts the hoisting frame 1, so that the two sets of symmetrical hoisting arms 2 are precisely positioned along the moving screw 11. As the telescopic hoist 22 extends and retracts, the fixing components 3 at its ends are precisely fitted inside both ends of the elevator guide rail 4; ensuring the stability of the elevator guide rail 4 throughout the grinding process, preventing displacement or vibration during grinding, thereby ensuring grinding quality and safety;

[0061] S2. By controlling the telescopic block 34 in the fixing component 3, it expands outward and tightly squeezes the groove inside the elevator guide rail 4 to achieve a firm lock at both ends. The expansion of the telescopic block 34 fills the space inside the guide rail, increasing the firmness of the fixation. This is crucial for the subsequent high-speed grinding operation and can effectively avoid uneven grinding caused by the shaking of the guide rail.

[0062] S3. Lift and move the fixed elevator guide rail 4 to the grinding area, i.e., the mounting bracket 6. The position and angle of the grinding component 7 are adjusted to ensure that the grinding cylinder 77 is completely in contact with the outer surface of the elevator guide rail 4. Then, the grinding component 7 is started to slowly and evenly grind the guide rail in all directions within the mounting bracket 6. By precisely controlling the speed and position of the grinding component, uniform grinding of the guide rail surface can be achieved, removing surface unevenness and burrs, and improving the surface finish and performance of the product.

[0063] S4. During the grinding process, coolant or cleaning fluid is injected into the water storage layer 53 through the water inlet 56, and continuously sprayed onto the guide rail surface through the nozzle 8 to reduce the high temperature generated during grinding and clean the dust generated during grinding. Spraying coolant or cleaning fluid not only helps to reduce the temperature of the grinding area and prevent the material properties from changing due to high temperature, but also helps to remove metal dust and debris generated during grinding, keep the equipment and working environment clean, and extend the service life of the equipment.

[0064] S5. After grinding is completed, shut down all operations and discharge the wastewater and grinding residue accumulated in the sludge collection layer 52 through the drain outlet 55 to complete the post-processing work of one grinding cycle. Timely cleaning of waste in the sludge collection layer can prevent blockage and corrosion problems, maintain the efficient operation of the system, and is also an environmentally responsible practice to ensure the hygiene of the workplace and the health of the operators.

[0065] It is worth mentioning that, in this invention, a transparent glass plate can be installed between the connecting plates 62 in the mounting frame 6 to collect the wastewater splashed during the grinding process, so as to prevent it from splashing out of the equipment and causing the surrounding environment to become dirty. This kind of modification should be within the design scope of this invention and can be adjusted according to the actual situation.

[0066] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic grinding device for elevator guide rail production, characterized in that: It includes a hoisting and fixing part and an all-round grinding part, wherein the hoisting and fixing part covers the working range of the all-round grinding part; The hoisting and fixing part includes a hoisting frame (1) and two sets of symmetrical hoisting arms (2). A movable screw (11) is installed in the middle of the hoisting frame (1), and a screw motor (12) is provided at one end. The hoisting arm (2) includes a movable part (21) set on the movable screw (11). A telescopic rod (22) is installed at the lower part of the movable part (21). A cylinder (23) is installed at the top of the movable part (21). A fixing component (3) is provided at the end of the telescopic rod (22). An elevator guide rail (4) is fixed between the fixing components (3) on both sides. The all-around polishing unit includes a multi-functional box base (5). The top two sides of the multi-functional box base (5) are provided with pads (51). Symmetrical mounting brackets (6) are installed on the top of the pads (51) on both sides. The mounting brackets (6) on both sides are cylindrical in shape. Multiple polishing components (7) are installed inside. The multiple polishing components (7) all point to the center of the mounting bracket (6). At the same time, multiple nozzles (8) are also provided on the mounting bracket (6). The nozzles (8) and the polishing components (7) all act on the elevator guide rail (4). Each set of mounting brackets (6) is provided with multiple sets of arc plates (61), and a connecting plate (62) is provided between the multiple sets of arc plates (61), and a connecting bridge (63) is also installed between the arc plates (61) on both sides. The moving part (21) has a moving screw hole (211) in the middle that cooperates with the moving lead screw (11). The bottom side of the telescopic rod (22) is set as a plane and the fixing component (3) is fixed thereon. The fixing component (3) includes a mounting plate (31). The mounting plate (31) is inserted into the interior of both ends of the elevator guide rail (4). The shape of the mounting plate (31) is the same as the interior of both ends of the elevator guide rail (4). Receiving grooves (32) are provided on both sides and the top. A limiting plate (33) is provided at the opening of the receiving groove (32). An internal telescopic block (34) is installed. The bottom of the telescopic block (34) is provided with a baffle (35) that is restricted by the limiting plate (33). The inner side of the telescopic block (34) has a hollowed-out groove (36). Multiple compression springs (37) are provided in the groove (36). The bottom of the compression springs (37) is fixedly connected to the bottom of the receiving groove (32). An elastic top block (38) is fixed on the top of the telescopic block (34). The elastic top block (38) acts on the arc groove inside the elevator guide rail (4), and the elastic top block (38) is placed outside the limiting plate (33). The polishing assembly (7) includes a bottom polishing component (71), a side polishing component (72), and an arc-angle polishing component (73). The bottom polishing component (71) is mounted on the connecting bridge (63), the side polishing component (72) is mounted on the arc plate (61), and the arc-angle polishing component (73) is mounted on the connecting plate (62). Both the bottom polishing component (71) and the side polishing component (72) include a base plate (74). A telescopic rod (75) is mounted on the base plate (74). A clamp (76) is rotatably mounted at the end of the telescopic rod (75). A polishing cylinder (77) is clamped inside the clamp (76). The arc-angle polishing component (73) has the same structure as the bottom polishing component (71) and the side polishing component (72). It has two sets of clamps (76) at its end and two sets of polishing cylinders (77) are clamped inside. The multifunctional box base (5) is provided with a dirt collection layer (52) inside. The bottom of the dirt collection layer (52) is also provided with a water storage layer (53). The water storage layer (53) wraps around the outside of the dirt collection layer (52). The top of the dirt collection layer (52) is provided with a dirt collection port (54). The side of the multifunctional box base (5) is provided with a drain port (55) and a water inlet (56). The drain port (55) and the water inlet (56) correspond to the dirt collection layer (52) and the water storage layer (53) respectively.

2. The automatic grinding device for elevator guide rail production according to claim 1, characterized in that: The pad (51) is disposed on both sides of the sewage collection port (54), and the pad (51) is set as an inclined surface at the sewage collection port (54), and the sewage collection port (54) is also an inclined surface.

3. The automatic grinding device for elevator guide rail production according to claim 1, characterized in that: The top of the two curved plates (61) are partially open. The grinding assembly (7) is installed on the curved plate (61), the connecting plate (62) and the connecting bridge (63). Multiple nozzles (8) are installed on the curved plate (61).

4. The automatic grinding device for elevator guide rail production according to claim 1, characterized in that: The arc-angle grinding part (73) has the same structure as the bottom grinding part (71) and the side grinding part (72), but the size and installation position of the clamp (76) and the grinding cylinder (77) are different.

5. The automatic grinding device for elevator guide rail production according to claim 1, characterized in that: The elevator guide rail (4) passes through the mounting bracket (6), and the grinding assembly (7) grinds the elevator guide rail (4) in all directions. The nozzle (8) is connected to the interior of the multi-functional box base (5) through the mounting bracket (6) and the pad (51). The multiple nozzles (8) are shaped like buckets.

6. A method of using an automatic grinding device for elevator guide rail production according to any one of claims 1-5, characterized in that: Includes the following steps: S1. First, the two sets of lifting arms (2) move on the lifting frame (1) and drive the telescopic rod (22) to extend and retract, so that the end fixing components (3) are fitted into the inside of both ends of the elevator guide rail (4); S2. Release the telescopic block (34) on the fixing component (3) so that it presses against the groove inside the elevator guide rail (4) to fix the elevator guide rail (4) from both ends. S3. Lift the telescopic boom (22) to move the elevator guide rail (4) to the mounting frame (6). When the elevator guide rail (4) enters the mounting frame (6) from the end, adjust the grinding component (7) so that the end grinding cylinder (77) is attached to the outer surface of the elevator guide rail (4). Start the grinding component (7) and slowly move the elevator guide rail (4) inside the mounting frame (6). S4. Inject coolant or cleaning fluid into the water storage layer (53) through the water inlet (56), and at the same time start the nozzle (8) to spray coolant or cleaning fluid onto the outer surface of the elevator guide rail to reduce the temperature of the outer surface of the elevator guide rail (4) during polishing. Move the elevator guide rail (4) until it completely passes through the mounting bracket (6). S5. After grinding, the sewage in the dirt collection layer (52) is discharged through the drain outlet (55).

Images