Automatic mechanism for elevator guide rail hole polishing

By designing an automated mechanism for drilling and grinding elevator guide rails, efficient and low-cost elevator guide rail processing has been achieved in small enterprise workshops. This solves the problems of large space occupation and high cost of traditional equipment, and improves production flexibility and market competitiveness.

CN120921119BActive Publication Date: 2026-03-24ZHEJIANG BONLY ELEVATOR GUIDE RAIL MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Traditional elevator guide rail processing equipment occupies a large space, making it difficult to lay out reasonably in the limited factory space of small enterprises. Moreover, the processing cost is high, affecting production flexibility and market competitiveness.

Method used

An automated mechanism for drilling and grinding elevator guide rails was designed, including a feeding device, a support device, and a drilling device. It adopts a bidirectional feeding and discharging design, and combined with a grinding wheel and a drilling machine, it achieves a smooth connection between drilling and grinding. The support device ensures processing stability.

Benefits of technology

It reduces space requirements, processing time and costs, improves space utilization, and ensures processing accuracy and stability, making it suitable for the economic affordability of small businesses.

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Abstract

The utility model provides an automatic mechanism is used in elevator guide rail trepanning polishing, including support frame, feeding device, support device and trepanning device, feeding device includes fixed mounting on support frame's feeding frame, is equipped with a plurality of intersecting mobile sliding slot on feeding frame, both ends of mobile sliding slot all rotatoryly installed with drive wheel, and rotatoryly installed with polishing wheel at the entrance of mobile sliding slot, support device includes rotatoryly installed on support frame's rotary frame, fixed mounting on rotary frame's mounting frame, rotatoryly installed on mounting frame's rotary sleeve, slidingly installed in rotary sleeve's telescopic link, slidingly installed on rotary frame's sliding frame, slidingly installed on rotary frame's lifting frame, slidingly installed on sliding frame and with lifting frame sliding connection's linkage board, and two ends are rotatoryly installed on telescopic link and linkage board's connecting rod, trepanning device includes the trepanning machine that can move in three axial directions, the utility model avoids the problem that traditional equipment occupies too much space in horizontal direction.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator guide rail processing, in particular to an automatic mechanism for drilling and polishing of elevator guide rails. BACKGROUND

[0002] In the field of elevator manufacturing, guide rails, as the core components to ensure the smooth operation of elevator cars, their machining precision directly affects the safety and comfort of elevator operation. Among them, the drilling and polishing process of guide rails is the key link to determine their assembly precision and service life.

[0003] Currently, high-precision production lines have been widely used in the machining of elevator guide rails, but traditional equipment occupies too much space in the horizontal direction to meet the support needs of long guide rails, which not only increases the difficulty of plant layout, but also limits the compact design of the production line.

[0004] Small elevator manufacturing and accessory processing enterprises generally face the dilemma of limited funds and small production sites, and cannot afford the high purchase cost of large production lines, nor can they provide sufficient installation and operation space. Traditional large-scale processing equipment not only requires high initial investment and high daily maintenance cost, but also has a large volume, making it difficult to achieve reasonable layout in limited space, which seriously restricts the production flexibility and market competitiveness of small enterprises. SUMMARY

[0005] To solve the above problems, the present application provides an automatic mechanism for drilling and polishing of elevator guide rails, and the technical scheme used is:

[0006] The automatic mechanism for drilling and polishing of elevator guide rails comprises a support frame, a feeding device, a supporting device and a drilling device installed on the support frame.

[0007] The feeding device comprises a feeding frame fixedly installed on the support frame, and a plurality of intersecting moving sliding grooves are provided on the feeding frame, both ends of the moving sliding groove are rotatably installed with driving wheels, and a polishing wheel is rotatably installed at the inlet of the moving sliding groove.

[0008] The supporting device comprises a rotating frame rotatably installed on the support frame, a mounting frame fixedly installed on the rotating frame, a rotating sleeve rotatably installed on the mounting frame, an extension rod slidably installed in the rotating sleeve, a sliding frame slidably installed on the rotating frame, a lifting frame slidably installed on the rotating frame, a linkage plate slidably installed on the sliding frame and slidably connected with the lifting frame, and a connecting rod rotatably installed at both ends of the extension rod and the linkage plate.

[0009] The drilling device comprises a drilling machine capable of moving in three-axis direction.

[0010] Further, the driving wheels are driven to rotate by the driving wheel belt installed on the feeding frame.

[0011] Further, the grinding wheel is driven to rotate by a grinding motor installed on the feeding frame.

[0012] Further, proximity sensors are installed on both ends of the moving chute.

[0013] Further, the rotating frame is driven to rotate by rotating driving device one; the rotating driving device one comprises a rotating motor one installed on the support frame, an input gear one coaxially and fixedly installed on the output end of the rotating motor one, and an output gear ring fixedly installed on the rotating frame and engaged with the input gear one.

[0014] Further, the rotating sleeve is rotatably installed on the mounting frame through the rotating shaft fixedly installed on the bottom and is driven to rotate by rotating driving device two; the rotating driving device two comprises a rotating motor two installed on the mounting frame, an input gear two coaxially and fixedly installed on the output end of the rotating motor two, a transition rack slidably installed on the mounting frame and engaged with the input gear two, and an output gear fixedly installed on the rotating shaft of the rotating sleeve and engaged with the transition rack.

[0015] Further, the sliding frame is driven to move by the horizontal driving lead screw installed on the rotating frame.

[0016] Further, the lifting frame is driven to move by the lifting driving lead screw installed on the rotating frame.

[0017] Further, a support rod is fixedly installed on the outermost end of the telescopic rod.

[0018] Further, the hole forming device further comprises a fixed frame fixedly installed on the support frame, a moving frame slidably installed on the fixed frame, a moving driving lead screw installed on the fixed frame and used for driving the moving frame to move, a sliding mounting block slidably installed on the moving frame, a driving cylinder installed on the moving frame and used for driving the sliding mounting block to move, and a lifting cylinder installed on the sliding mounting block and used for driving the hole forming machine to move.

[0019] Due to the above technical solutions, the present application has the following advantages:

[0020] 1. The feeding device of the present application adopts the design of feeding in two directions; when one direction is performing the finishing work, the other direction can start feeding synchronously, thereby avoiding the problem of occupying too much space in the horizontal direction of the traditional equipment, especially suitable for the case of limited area of small enterprise factory, reducing the requirement for the site and improving the effective utilization rate of the site.

[0021] 2. The feeding device of the present application is provided with a polishing wheel, and the polishing can be completed when the guide rail passes through the polishing wheel, the smooth connection of the punching and polishing processes is realized, the additional transfer and adjustment steps are saved, the processing time and the corresponding cost are reduced, the cost is further reduced, and the economic affordability of small enterprises is further met.

[0022] 3. The supporting device of the present application can support the elevator guide rail in the processing process, avoid the shaking in the guide rail feeding process, and guarantee the processing precision and stability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an overall structure side view when the supporting device of the present application is retracted.

[0024] Figure 2 It is an overall structure side view when the supporting device of the present application is retracted.

[0025] Figure 3 It is an overall structure side view when the supporting device of the present application is extended.

[0026] Figure 4 It is an overall structure side view when the supporting device of the present application is extended.

[0027] Figure 5 It is an assembly structure diagram of the supporting frame and the feeding device of the present application.

[0028] Figure 6 It is a working diagram of the feeding device of the present application.

[0029] Figure 7 It is a structure diagram of the feeding device of the present application.

[0030] Figure 8 It is an assembly structure diagram of the supporting frame and the supporting device of the present application.

[0031] Figure 9 It is a structure diagram when the supporting device of the present application is retracted.

[0032] Figure 10 It is a structure diagram when the supporting device of the present application is extended.

[0033] Figure 11 It is a structure diagram of the supporting device after the rotating frame is removed.

[0034] Figure 12 It is a structure diagram of the supporting device after the rotating frame and the mounting frame are removed.

[0035] Figure 13 It is a structure diagram of the hole opening device of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS:

[0037] 1-Support frame;

[0038] 2-Feeding device; 201-Feeding rack; 2011-Moving chute; 202-Drive wheel; 203-Drive motor; 204-Proximity sensor; 205-Grinding wheel; 206-Grinding motor;

[0039] 3-Support device; 301-Rotating frame; 302-Rotating drive device one; 3021-Rotating motor one; 3022-Input gear one; 3023-Output gear ring; 303-Mounting bracket; 304-Rotating sleeve; 305-Rotating drive device two; 3051-Rotating motor two; 3052-Input gear two; 3053-Transition rack; 3054-Output gear; 306-Telescopic rod; 3061-Support rod; 307-Sliding frame; 308-Horizontal drive screw; 309-Linkage plate; 310-Lifting frame; 311-Lifting drive screw; 312-Connecting rod;

[0040] 4-Drilling device; 401-Fixed frame; 402-Moving frame; 403-Moving drive screw; 404-Sliding mounting block; 405-Drive cylinder; 406-Lifting cylinder; 407-Drilling machine. Detailed Implementation

[0041] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] In the description of this invention, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0043] Example:

[0044] like Figures 1-4 As shown, the automated mechanism for drilling and grinding elevator guide rails includes a support frame 1, a feeding device 2, a support device 3, and a drilling device 4; the feeding device 2, the support device 3, and the drilling device 4 are all installed on the support frame 1.

[0045] like Figures 5-7As shown, the feeding device 2 comprises a feeding frame 201, a driving wheel 202, a driving motor 203, a proximity sensor 204, a polishing wheel 205 and a polishing motor 206; the feeding frame 201 is fixedly installed at the top end of the support frame 1, and a plurality of intersecting moving sliding grooves 2011 are arranged on the feeding frame 201, and the cross section of the moving sliding groove 2011 is T-shaped for the elevator guide rail;

[0046] The two ends of the moving sliding groove 2011 are rotatably installed with the driving wheel 202, and the driving wheel 202 is driven to rotate by the driving wheel 202 installed on the feeding frame 201; the driving wheel 202 can adopt a rubber wheel, and after the elevator guide rail enters the moving sliding groove 2011, the driving wheel 202 is in contact with the top surface of the elevator guide rail, and the rotation of the driving wheel 202 can drive the elevator guide rail to move along the moving sliding groove 2011;

[0047] The entrance of the moving sliding groove 2011 is rotatably installed with the polishing wheel 205, and the polishing wheel 205 is driven to rotate by the polishing motor 206 installed on the feeding frame 201; when the elevator guide rail moves along the moving sliding groove 2011, the polishing wheel 205 polishes the elevator guide rail;

[0048] The two ends of the moving sliding groove 2011 are rotatably installed with the driving wheel 202, and the driving wheel 202 is driven to rotate by the driving wheel 202 installed on the feeding frame 201; the driving wheel 202 can adopt a rubber wheel, and after the elevator guide rail enters the moving sliding groove 2011, the driving wheel 202 is in contact with the top surface of the elevator guide rail, and the rotation of the driving wheel 202 can drive the elevator guide rail to move along the moving sliding groove 2011;

[0049] As a specific embodiment of the present embodiment, the feeding of the elevator guide rail can be completed by an external mechanical hand, and the mechanical hand is located between the two moving sliding grooves 2011 and places the elevator guide rail on the moving sliding groove 2011 correspondingly.

[0050] As shown, Figures 8-12 The support device 3 is arranged below the feeding device 2 and comprises a rotating frame 301, a rotating driving device one 302, a mounting frame 303, a rotating sleeve 304, a rotating driving device two 305, an extension rod 306, a sliding frame 307, a horizontal driving lead screw 308, a linkage plate 309, a lifting frame 310, a lifting driving lead screw 311 and a connecting rod 312; the rotating frame 301 is rotatably installed on the support frame 1 and is driven to rotate by the rotating driving device one 302; the rotating driving device one 302 comprises a rotating motor one 3021, an input gear one 3022 and an output gear ring 3023, the rotating motor one 3021 is installed on the support frame 1, the input gear one 3022 is coaxially and fixedly installed on the output end of the rotating motor one 3021, the output gear ring 3023 is fixedly installed on the rotating frame 301 and is in mesh with the input gear one 3022, the rotating motor one 3021 drives the input gear one 3022 to rotate, the input gear one 3022 drives the output gear ring 3023 to rotate, thereby driving the rotating frame 301 to rotate;

[0051] The mounting frame 303 is fixedly installed on the rotating frame 301; the rotating sleeve 304 is rotatably installed on the mounting frame 303 and is driven to rotate by the second rotating driving device 305; the bottom of the rotating sleeve 304 is fixedly provided with a rotating shaft and is rotatably installed on the mounting frame 303 through the rotating shaft; the second rotating driving device 305 comprises a second rotating motor 3051, an input gear 3052, a transition rack 3053 and an output gear 3054; the second rotating motor 3051 is installed on the mounting frame 303; the input gear 3052 is coaxially and fixedly installed on the output end of the second rotating motor 3051; the transition rack 3053 is slidably installed on the mounting frame 303 and is in mesh with the input gear 3052; the output gear 3054 is fixedly installed on the rotating shaft of the rotating sleeve 304 and is in mesh with the transition rack 3053; the second rotating motor 3051 drives the input gear 3052 to rotate, the input gear 3052 drives the transition rack 3053 to move, the transition rack 3053 drives the output gear 3054 to rotate, and the output gear 3054 drives the rotating shaft of the rotating sleeve 304 to rotate, so that the rotating sleeve 304 rotates around the rotating shaft;

[0052] The telescopic rod 306 is slidably installed in the rotating sleeve 304, and a supporting rod 3061 is fixedly installed on the outermost end of the telescopic rod 306; the sliding frame 307 is horizontally slidably installed on the rotating frame 301; the horizontal driving lead screw 308 is installed on the rotating frame 301 and can be driven to rotate by the stepping motor installed on the rotating frame 301; the horizontal driving lead screw 308 is in threaded connection with the sliding frame 307 and is used to drive the sliding frame 307 to move; the linkage plates 309 are vertically slidably installed at the two ends of the sliding frame 307 and are in horizontal sliding connection with the lifting frame 310; the lifting frame 310 is vertically slidably installed on the rotating frame 301; the lifting driving lead screw 311 is installed on the rotating frame 301 and can be driven to rotate by the stepping motor installed on the rotating frame 301; the lifting driving lead screw 311 is in threaded connection with the lifting frame 310 and is used to drive the lifting frame 310 to move; the connecting rod 312 is used to connect the telescopic rod 306 and the linkage plates 309; the two ends of the connecting rod 312 are rotatably installed on the telescopic rod 306 and the linkage plates 309 through rotating shafts; the rotating sleeve 304 is provided with an avoiding groove corresponding to the rotating shaft on the telescopic rod 306.

[0053] The movement principle of the supporting device 3: when the supporting device 3 is extended, the second rotating driving device 305 drives the rotating sleeve 304 to rotate, the horizontal driving lead screw 308 drives the sliding frame 307 to move, the lifting driving lead screw 311 drives the lifting frame 310 to move upwards, the linkage plates 309 move upwards, and the connecting rod 312 drives the telescopic rod 306 to extend out of the rotating sleeve 304, so that the supporting device 3 is extended from the posture shown in Figure 9 to the posture shown in Figure 10As shown, a stable triangular structure is formed, with the support rod 3061 at the top of the telescopic rod 306 supporting the elevator guide rail; the rotation drive device 302 drives the rotating frame 301 to rotate, causing the entire support device 3 to change direction.

[0054] like Figure 1 and Figure 13 As shown, the drilling device 4 includes a fixed frame 401, a movable frame 402, a movable drive screw 403, a sliding mounting block 404, a drive cylinder 405, a lifting cylinder 406, and a drilling machine 407. The fixed frame 401 is fixedly mounted on the support frame 1, the movable frame 402 is horizontally slidably mounted on the fixed frame 401, and the sliding mounting block 404 is horizontally slidably mounted on the movable frame 402. The sliding directions of the movable frame 402 and the sliding mounting block 404 are perpendicular to each other. The movable drive screw 403 is mounted on the fixed frame 401 and can be driven by a screw mounted on the fixed frame 401. The stepper motor on 1 drives the rotation, and the moving drive screw 403 is threadedly connected to the moving frame 402 to drive the moving frame 402 to move; the drive cylinder 405 can be a cylinder, the cylinder body is fixedly installed on the moving frame 402, and the telescopic end is fixedly connected to the sliding mounting block 404; the lifting cylinder 406 can be a cylinder, the cylinder body is fixedly installed on the sliding mounting block 404, and the hole punching machine 407 is fixedly installed on the telescopic end of the lifting cylinder 406; the hole punching machine 407 can move in three-axis directions to perform hole punching on the elevator guide rail in the moving slide 2011.

[0055] The working steps of this embodiment are as follows:

[0056] The first step is to place the two elevator guide rails at the entrances of the two movable slides 2011 respectively. The proximity sensor 204 at the entrance confirms the position of the elevator guide rails, and the drive wheel 202 at the entrance clamps the elevator guide rails.

[0057] The second step involves activating the drive motor 203 and grinding motor 206 at the entrance of one of the movable slideways 2011. Simultaneously, the support device 3 extends to support the elevator guide rail within the movable slideway 2011 (e.g., Figures 3-4 When the support device 3 is extended (as shown), the elevator guide rail in the movable slide 2011 begins to move, and the grinding wheel 205 performs grinding; when the elevator guide rail moves to the proximity sensor 204 at the end of the movable slide 2011, the elevator guide rail stops moving.

[0058] The third step involves starting the moving drive screw 403 and drive cylinder 405, moving the drilling machine 407 to the corresponding drilling position; starting the lifting cylinder 406 and drilling machine 407, the drilling machine 407 moves downward and drills a hole in the elevator guide rail; after drilling is completed, the drilling machine 407 moves upward, the elevator guide rail continues to move, so that the next drilling point moves below the drilling machine 407, and the drilling machine 407 continues to drill.

[0059] The fourth step, when the elevator guide rail moves to the state of being placed on the moving chute 2011 as a whole, the support device 3 is retracted and rotated 180° as a whole and then extended to support the other side of the elevator guide rail; then the elevator guide rail continues to move, the hole opening machine 407 continues to open holes until the hole machining on the elevator guide rail is completed;

[0060] The fifth step, the elevator guide rail machined in the fourth step is removed, the driving motor 203 and the polishing motor 206 at the entrance of the other moving chute 2011 are started, and the hole opening work of the elevator guide rail in the moving chute 2011 is carried out; a to-be-machined elevator guide rail is placed on the empty moving chute 2011, and waits for the next round of hole opening machining.

Claims

1. An automated mechanism for drilling and grinding elevator guide rails, characterized in that, It includes a support frame (1), and a feeding device (2), a support device (3) and an opening device (4) installed on the support frame (1). The feeding device (2) includes a feeding frame (201) fixedly installed on the support frame (1). The feeding frame (201) is provided with a plurality of intersecting movable grooves (2011). Both ends of the movable grooves (2011) are rotatably mounted with drive wheels (202). A grinding wheel (205) is rotatably mounted at the entrance of the movable grooves (2011). The support device (3) includes a rotating frame (301) rotatably mounted on the support frame (1), a mounting frame (303) fixedly mounted on the rotating frame (301), a rotating sleeve (304) rotatably mounted on the mounting frame (303), a telescopic rod (306) slidably mounted in the rotating sleeve (304), a sliding frame (307) slidably mounted on the rotating frame (301), a lifting frame (310) slidably mounted on the rotating frame (301), a linkage plate (309) slidably mounted on the sliding frame (307) and slidably connected to the lifting frame (310), and a connecting rod (312) rotatably mounted on the telescopic rod (306) and the linkage plate (309) at both ends respectively. The opening device (4) includes an opening machine (407) capable of moving in three axial directions.

2. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, The drive wheel (202) is driven to rotate by the drive wheel (202) mounted on the feed rack (201).

3. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, The grinding wheel (205) is driven to rotate by a grinding motor (206) mounted on a feeding rack (201).

4. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, Both ends of the movable chute (2011) are equipped with proximity sensors (204).

5. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, The rotating frame (301) is driven to rotate by a rotating drive device (302); the rotating drive device (302) includes a rotating motor (3021) mounted on a support frame (1), an input gear (3022) coaxially fixed on the output end of the rotating motor (3021), and an output gear ring (3023) fixedly mounted on the rotating frame (301) and meshing with the input gear (3022).

6. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, The rotating sleeve (304) is rotatably mounted on the mounting frame (303) via a rotating shaft fixedly mounted at the bottom, and is driven to rotate by the second rotating drive device (305). The second rotating drive device (305) includes a second rotating motor (3051) mounted on the mounting frame (303), an input gear (3052) coaxially fixedly mounted on the output end of the second rotating motor (3051), a transition rack (3053) slidably mounted on the mounting frame (303) and meshing with the input gear (3052), and an output gear (3054) fixedly mounted on the rotating shaft of the rotating sleeve (304) and meshing with the transition rack (3053).

7. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, The sliding frame (307) is moved by a horizontal drive screw (308) mounted on the rotating frame (301).

8. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, The lifting frame (310) is moved by a lifting drive screw (311) mounted on a rotating frame (301).

9. The automated mechanism for drilling and grinding elevator guide rails according to claim 1, characterized in that, A support rod (3061) is fixedly installed on the outermost end of the telescopic rod (306).

10. The automated mechanism for drilling and grinding elevator guide rails according to any one of claims 1-9, characterized in that, The hole-opening device (4) further includes a fixed frame (401) fixedly mounted on the support frame (1), a movable frame (402) slidably mounted on the fixed frame (401), a movable drive screw (403) mounted on the fixed frame (401) and used to drive the movable frame (402) to move, a sliding mounting block (404) slidably mounted on the movable frame (402), a drive cylinder (405) mounted on the movable frame (402) and used to drive the sliding mounting block (404) to move, and a lifting cylinder (406) mounted on the sliding mounting block (404) and used to drive the hole-opening machine (407) to move.

Citation Information

Patent Citations

  • Drilling and polishing integrated machine

    CN110355576A

  • Automatic grinding and efficient drilling device for surface of automobile brake disc

    CN111230499A