Polishing device for elevator guide rail

Abstract

The utility model discloses a polishing device for an elevator guide rail, and relates to the technical field of elevator guide rail machining. The polishing device for the elevator guide rail comprises a workbench, a polishing mechanism and two base plates are installed at the top of the workbench, two cross-shaped sliding grooves are formed in the top of the inner wall of the workbench at equal intervals, and cross-shaped sliding blocks are slidably connected to the inner walls of the two cross-shaped sliding grooves; a servo motor, two limiting rods and a lead screw are installed in the middle of the inner wall of the workbench, the lead screw is driven by the servo motor to rotate, the two connecting plates are driven by the supports to move downwards along the two limiting rods, the two connecting plates rotate along the hinged positions of the two cross sliding blocks and the two supports respectively to deform, and the two cross sliding blocks are driven by the supports to move downwards along the two limiting rods. The two cross-shaped sliding blocks are driven to drive the two clamping plates to slide towards the middle along the two cross-shaped sliding blocks, then the front end and the rear end of the elevator guide rail can be fixed, the polishing mechanism can polish the elevator guide rail conveniently, and the polishing speed is greatly increased.

Description

Technical Field

[0001] This utility model relates to the field of elevator guide rail processing technology, specifically to a grinding device for elevator guide rails. Background Technology

[0002] Elevator guide rails are elevator components composed of steel rails and connecting plates, and are divided into car guide rails and counterweight guide rails. An existing patent, CN202323499489.5, describes an elevator guide rail grinding device. It includes a fixing frame, with a placement assembly fixedly connected to the bottom surface of the fixing frame. Two sets of fixing plates are fixedly connected to the top surface of the placement assembly, and screws are threaded onto the top surfaces of both fixing plates. Pressure plates are rotatably connected to the bottom ends of both screws. Two sets of cylinders are fixedly connected to the bottom surface of the fixing frame, and grinding components are fixedly connected to the output ends of the two cylinders. This invention uses the placement assembly to position and fix the elevator guide rail to be ground, clamping both ends to secure it. Then, the screws rotate downwards, causing pressure plates to press against the top surfaces of the two wings of the elevator guide rail, thereby fixing the elevator guide rail to be ground and preventing guide rail misalignment during the grinding process.

[0003] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: although the polished elevator guide rails can be fixed, it requires manual use of tools to rotate the screw downwards so that the pressure plate can fix the elevator guide rails. The operation process is cumbersome, which reduces the polishing speed. Therefore, we propose an elevator guide rail polishing device to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a grinding device for elevator guide rails, which solves the problems of the aforementioned patents that require manual use of tools to rotate the screw downwards in order to make the pressure plate press and fix the elevator guide rails, resulting in a cumbersome operation process and low grinding speed.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a grinding device for elevator guide rails, including a worktable, a grinding mechanism and two pads installed on the top of the worktable, two cross grooves equidistantly formed on the top of the inner wall of the worktable, cross sliders slidably connected to the inner walls of the two cross grooves, a servo motor, two limit rods and a lead screw respectively installed in the middle part of the inner wall of the worktable, the lower end of the lead screw being fixedly connected to the output end of the servo motor, and springs fixedly connected to the inner walls of the two cross grooves and on one side of the two cross sliders, and clamping plates fixedly installed on the top of the two cross sliders;

[0006] Both of the cross sliders are hinged to a connecting plate at their bottom, and the other end of the two connecting plates is hinged to a support. The inner wall of the support has a threaded hole that meshes with the lead screw and a circular hole that matches the outer diameter of the two limiting rods. The lead screw is sleeved in the threaded hole, and the two limiting rods are slidably connected in the two circular holes.

[0007] Preferably, both clamps are L-shaped and are symmetrically mounted on the top of the cross slider.

[0008] Preferably, accordion covers are installed on both the sidewalls of the two cross slides and on both the front and rear sides of the two cross slides.

[0009] Preferably, the grinding mechanism includes two support plates, a mounting plate, and two bearing plates. Both support plates are mounted on the top of the worktable, and slide rails are fixedly connected to the top of both support plates. Racks are fixedly mounted on the outer walls of both support plates, and sliders are slidably connected to the top of both slide rails. The mounting plate is fixedly mounted on the top of the two sliders.

[0010] Preferably, the two support plates are fixedly installed at the left and right ends of the mounting plate, and a forward and reverse motor is installed at the bottom of each support plate. The output ends of the two forward and reverse motors are fixedly connected to gears, and the two gears mesh with two racks.

[0011] Preferably, a mounting bracket is fixedly installed at the center of the top of the mounting plate, a vacuum cleaner and a stepper motor are fixedly connected to the top of the mounting bracket, and a grinding cylinder is rotatably connected to the bottom of the mounting bracket. The grinding cylinder is fixedly connected to the output end of the stepper motor.

[0012] Preferably, the vacuum cleaner includes two suction pipes, one end of which passes through the fixing frame and is located on the left and right sides of the grinding cylinder. Protective covers are installed on both sides of the workbench. The two support plates, two forward and reverse motors, two racks and two gears are located inside the two protective covers. Beneficial effects

[0013] This invention provides a grinding device for elevator guide rails. Compared with the prior art, it has the following advantages:

[0014] The grinding device for the elevator guide rail uses a servo motor to drive a lead screw to rotate. The support drives two connecting plates to move down along two limit rods. The two connecting plates rotate and deform along the hinge points between the two cross sliders and the two supports, driving the two cross sliders to move the two clamping plates to slide towards the middle along the two cross sliders. This fixes the front and rear ends of the elevator guide rail, making it easier for the grinding mechanism to grind the elevator guide rail and greatly improving the grinding speed. Attached Figure Description

[0015] Figure 1 This is a top view of the entire utility model.

[0016] Figure 2 This is a schematic diagram of the grinding mechanism of this utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the present invention.

[0018] Figure 4 This is a partial structural diagram of the present invention.

[0019] Figure 5 This is a schematic diagram of a partial explosion of the present invention.

[0020] In the diagram: 1. Workbench; 11. Protective cover; 12. Cross slide; 13. Cross slider; 14. Spring; 15. Support; 16. Limiting rod; 17. Lead screw; 2. Pad; 21. Support plate; 22. Mounting plate; 23. Bearing plate; 24. Fixing frame; 25. Slider; 26. Slide rail; 27. Rack; 28. Gear; 3. Vacuum cleaner; 31. Vacuum hose; 4. Stepper motor; 5. Bellows cover; 6. Clamping plate; 7. Forward and reverse motor; 8. Servo motor; 9. Grinding cylinder; 10. Connecting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 - Figure 5This utility model provides a technical solution: a grinding device for elevator guide rails, including a worktable 1. A grinding mechanism and two pads 2 are installed on the top of the worktable 1. Two cross grooves 12 are equidistantly formed on the top of the inner wall of the worktable 1. Cross sliders 13 are slidably connected to the inner walls of both cross grooves 12. A servo motor 8, two limit rods 16, and a lead screw 17 are respectively installed in the middle of the inner wall of the worktable 1. The lower end of the lead screw 17 is fixedly connected to the output end of the servo motor 8. Simultaneously, the two cross... Springs 14 are fixedly connected to the inner wall of the slide groove 12 and to one side of the two cross sliders 13. Clamping plates 6 are fixedly installed on the top of the two cross sliders 13. Connecting plates 10 are hinged to the bottom of the two cross sliders 13. Supports 15 are hinged to the other end of the two connecting plates 10. The inner wall of the support 15 is provided with threaded holes that mesh with the lead screw 17 and circular holes that match the outer diameter of the two limit rods 16. The lead screw 17 is sleeved in the threaded hole, and the two limit rods 16 are slidably connected in the two circular holes.

[0023] Two cross slides 13 can be installed through two cross grooves 12 opened on the top of the inner wall of the workbench 1. Since the top of the two clamping plates 6 is fixedly installed on the top of the two cross slides 13, and the left and right ends of the two connecting plates 10 are respectively hinged to the bottom of the two cross slides 13 and the left and right sides of the two supports 15, the elevator guide rail is placed on the top of the two pads 2. The worker starts the servo motor 8 to drive the lead screw 17 to rotate. Under the action of the threaded hole, the support 15 drives the two connecting plates 10 to move down along the two limit rods 16. At this time, the two connecting plates 10 rotate and deform along the hinge points of the two cross slides 13 and the two supports 15, which can drive the two cross slides 13 to drive the two clamping plates 6 to slide towards the middle along the two cross slides 13, thereby fixing the front and rear ends of the elevator guide rail, which is convenient for the grinding mechanism to grind the elevator guide rail and greatly improves the grinding speed.

[0024] See Figure 1 , Figure 3 Both clamping plates 6 are L-shaped and are symmetrically installed on the top of the cross slider 13. Both cross slide grooves 12 are equipped with accordion covers 5 on their side walls and on the front and rear sides of the two cross sliders 13.

[0025] The two clamping plates 6 are both L-shaped, which allows the vertical surfaces of the two clamping plates 6 to fit against the side of the track and the horizontal surfaces to press against the top of the rail head, forming a two-way fixation. This prevents the track from vibrating or shifting during grinding. The bellows cover 5 prevents metal shavings, dust, oil, etc. from entering the worktable 1 through the two cross grooves 12, avoiding abnormal wear of the limit rod 16 and the lead screw 17, and improving the life and safety of the device.

[0026] See Figure 1 , Figure 2 and Figure 4The grinding mechanism includes two support plates 21, a mounting plate 22, and two bearing plates 23. The two support plates 21 are mounted on the top of the workbench 1. The top of each support plate 21 is fixedly connected to a slide rail 26. The outer wall of each support plate 21 is fixedly mounted with a rack 27. The top of each slide rail 26 is slidably connected with a slider 25. The mounting plate 22 is fixedly mounted on the top of the two sliders 25. The two bearing plates 23 are fixedly mounted on the left and right ends of the mounting plate 22. The bottom of each bearing plate 23 is equipped with a forward and reverse motor 7. The output ends of each forward and reverse motor 7 are fixedly connected with gears 28. The two gears 28 mesh with the two racks 27. The top of the mounting plate 22 is fixedly mounted with a fixing frame 24. The top of the fixing frame 24 is fixedly connected with a vacuum cleaner 3 and a stepper motor 4. The bottom of the fixing frame 24 is rotatably connected with a grinding cylinder 9. The grinding cylinder 9 is fixedly connected to the output end of the stepper motor 4.

[0027] The two support plates 21 in the grinding mechanism can be used to install the two slide rails 26 and the two racks 27. Since the top of the two slide rails 26 is slidably connected to the sliders 25, the mounting plate 22 is fixedly installed on the top of the two sliders 25. After the elevator rail is fixed on the top of the workbench 1, the two forward and reverse motors 7 are started to drive the two gears 28 to rotate. Under the action of the gear effect, the two gears 28 drive the two forward and reverse motors 7, which in turn drive the two bearing plates 23 and the mounting plate 22, so that the two sliders 25 slide back and forth along the two slide rails 26. At this time, the stepper motor 4 is started to drive the grinding cylinder 9 to grind the elevator guide rail.

[0028] See Figure 2 , Figure 4 The vacuum cleaner 3 includes two suction pipes 31. One end of each suction pipe 31 passes through the fixing frame 24 and is located on the left and right sides of the grinding cylinder 9. Protective covers 11 are installed on both the left and right sides of the workbench 1. Two bearing plates 23, two forward and reverse motors 7, two racks 27 and two gears 28 are located inside the two protective covers 11.

[0029] When the grinding cylinder 9 grinds the elevator guide rail, the two suction pipes 31 can suck the grinding debris into the vacuum cleaner 3, thereby ensuring that the workbench 1 is clean. In addition, the two protective covers 11 can cover the two high-speed rotating gears 28, improving safety.

[0030] During operation, two cross slides 13 can be installed through two cross grooves 12 on the top of the inner wall of the workbench 1. Since the tops of the two clamping plates 6 are fixedly installed on the tops of the two cross slides 13, and the left and right ends of the two connecting plates 10 are respectively hinged to the bottoms of the two cross slides 13 and the left and right sides of the two supports 15, the elevator guide rail is placed on the top of the two pads 2. The worker starts the servo motor 8 to drive the lead screw 17 to rotate. Under the action of the threaded hole, the supports 15 drive the two connecting plates 10 to move down along the two limit rods 16. At this time, the two connecting plates 10 rotate and deform along the hinge points of the two cross slides 13 and the two supports 15, which can drive the two cross slides 13 to drive the two clamping plates 6 to slide towards the middle along the two cross slides 13, thereby fixing the front and rear ends of the elevator guide rail, which is convenient for the grinding mechanism to grind the elevator guide rail and greatly improves the grinding speed.

[0031] The two clamping plates 6 are both L-shaped, which allows the vertical surfaces of the two clamping plates 6 to fit against the side of the track and the horizontal surfaces to press against the top of the rail head, forming a two-way fixation. This prevents the track from vibrating or shifting during grinding. The bellows cover 5 prevents metal shavings, dust, oil, etc. from entering the worktable 1 through the two cross grooves 12, avoiding abnormal wear of the limit rod 16 and the lead screw 17, and improving the life and safety of the device.

[0032] The two support plates 21 in the grinding mechanism can be used to install the two slide rails 26 and the two racks 27. Since the top of the two slide rails 26 is slidably connected to the sliders 25, the mounting plate 22 is fixedly installed on the top of the two sliders 25. After the elevator rail is fixed on the top of the workbench 1, the two forward and reverse motors 7 are started to drive the two gears 28 to rotate. Under the action of the gear effect, the two gears 28 drive the two forward and reverse motors 7, which in turn drive the two bearing plates 23 and the mounting plate 22, so that the two sliders 25 slide back and forth along the two slide rails 26. At this time, the stepper motor 4 is started to drive the grinding cylinder 9 to grind the elevator guide rail.

[0033] When the grinding cylinder 9 grinds the elevator guide rail, the two suction pipes 31 can suck the grinding debris into the vacuum cleaner 3, thereby ensuring that the workbench 1 is clean. In addition, the two protective covers 11 can cover the two high-speed rotating gears 28, improving safety.

[0034] In summary, when the lead screw 17 of the device rotates, the support 15 drives the two connecting plates 10 to move downward along the two limiting rods 16. This causes the two connecting plates 10 to rotate and deform at the hinge points between the two cross sliders 13 and the two supports 15. This drives the two cross sliders 13 to move the two clamping plates 6 towards the middle along the two cross sliders 13. This allows the front and rear ends of the elevator guide rail to be fixed, facilitating the grinding mechanism to grind the elevator guide rail and greatly improving the grinding speed.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A grinding device for elevator guide rails, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with polishing mechanism and two backing plates (2), the top of the inner wall of the workbench (1) is provided with two cross sliding grooves (12) equidistantly, the inner wall of the two cross sliding grooves (12) is slidably connected with cross sliding blocks (13), the middle of the inner wall of the workbench (1) is respectively provided with a servo motor (8), two limiting rods (16) and a lead screw (17), the lower end of the lead screw (17) is fixedly connected with the output end of the servo motor (8), and the inner wall of the two cross sliding grooves (12) and located on one side of the two cross sliding blocks (13) are fixedly connected with springs (14), and the top of the two cross sliding blocks (13) is fixedly provided with clamping plates (6). The bottom of the two cross sliding blocks (13) is hingedly connected with connecting plates (10), the other end of the two connecting plates (10) is hingedly connected with supports (15), the inner wall of the support (15) is provided with a threaded hole matched with the lead screw (17) and a circular hole matched with the outer diameter of the two limiting rods (16), the lead screw (17) is sleeved in the threaded hole, and the two limiting rods (16) are slidably connected in the two circular holes.

2. The polishing device of an elevator guide rail according to claim 1, characterized in that: The two clamping plates (6) are "L" shaped, and the two clamping plates (6) are symmetrically installed on the top of the cross sliding block (13).

3. The polishing device of an elevator guide rail according to claim 1, characterized in that: The side wall of the two cross sliding grooves (12) and located on the front and back sides of the two cross sliding blocks (13) are provided with organ cases (5).

4. The polishing device of an elevator guide rail according to claim 1, characterized in that: The polishing mechanism comprises two supporting plates (21), a mounting plate (22) and two bearing plates (23), the two supporting plates (21) are installed on the top of the workbench (1), the top of the two supporting plates (21) is fixedly connected with sliding rails (26), the outer wall of the two supporting plates (21) is fixedly provided with racks (27), the top of the two sliding rails (26) is slidably connected with sliding blocks (25), and the mounting plate (22) is fixedly installed on the top of the two sliding blocks (25).

5. A device for grinding an elevator guide rail according to claim 4, characterized in that The two bearing plates (23) are fixedly installed on the left and right ends of the mounting plate (22), the bottom of the bearing plate (23) is provided with a reversible motor (7), the output end of the two reversible motors (7) is fixedly connected with a gear (28), and the two gears (28) are engaged with the two racks (27).

6. A device for grinding an elevator guide rail according to claim 5, characterized in that The top of the mounting plate (22) is fixedly provided with a fixing frame (24), the top of the fixing frame (24) is fixedly connected with a dust collector (3) and a stepping motor (4), the bottom of the fixing frame (24) is rotatably connected with a polishing cylinder (9), and the polishing cylinder (9) is fixedly connected with the output end of the stepping motor (4).

7. A device for grinding an elevator guide rail according to claim 6, characterized in that The dust collector (3) comprises two dust suction pipes (31), one end of the two dust suction pipes (31) penetrates through the fixing frame (24) and is located on the left and right sides of the polishing cylinder (9), the left and right sides of the workbench (1) are provided with protective covers (11), and the two bearing plates (23), the two reversible motors (7), the two racks (27) and the two gears (28) are located in the two protective covers (11).

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