Automatic twisting machine for elevator guide rail machining

Abstract

The utility model discloses an automatic twisting machine for elevator guide rail processing, including base, clamping mechanism, exerting torsion mechanism and detection mechanism, the both sides fixedness of linear guide rail in the top of base, the one side fixedness of control cabinet of base, the clamping mechanism includes clamp no.

Description

Technical Field

[0001] This utility model belongs to the technical field of elevator guide rail processing equipment, specifically relating to an automatic twisting machine for processing elevator guide rails. Background Technology

[0002] During long-distance transportation, loading and unloading, or on-site storage, elevator guide rails may become twisted and deformed due to uneven stress. Before installation, they must be corrected using an elevator guide rail twisting machine to ensure the straightness of each guide rail. An elevator guide rail twisting machine is a hydraulic or mechanical device specifically designed to correct horizontal twisting deformation of elevator guide rails. It is an indispensable key tool in elevator installation, maintenance, and repair. Its main purpose is to eliminate "torsional deformation" of the guide rails, ensuring that the T-shaped working surfaces of the guide rails remain parallel in the horizontal direction. This allows the elevator car and counterweight guide shoes to run smoothly, preventing jamming, abnormal wear, and vibration.

[0003] Although elevator guide rail twisting machines are essential tools in elevator guide rail production, they also have some inherent drawbacks. For example, the correction process heavily relies on the operator's technical experience and feel; the degree of torque application is difficult to quantify; and over-correction or under-correction frequently occurs, especially when dealing with long guide rails or complex deformations. The traditional "twist-measure-re-twist" mode is time-consuming and may require multiple repetitions, resulting in low efficiency. Therefore, there is an urgent need to design an automatic twisting machine for elevator guide rail processing to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an automatic twisting machine for processing elevator guide rails, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic twisting machine for processing elevator guide rails, comprising: The base has linear guide rails fixed on both sides of its top, and sliders are slidably connected on the linear guide rails. A drive motor is provided at one end of the linear guide rails, and a mounting base is fixed on the top of the sliders. A control cabinet is fixed on one side of the base. The clamping mechanism includes a clamp one and a clamp two. The clamp one is fixed to the top of the mounting base, and the clamp two is fixed to one side of the top of the base. A main shaft runs through the middle of the clamp two. One end of the main shaft is keyed to a transmission gear one, and the other end is keyed to an electric chuck. The torque application mechanism includes a rotary motor fixed to one side of the clamp second. The output shaft of the rotary motor passes through the clamp second, and a transmission gear second is keyed to the output shaft. The transmission gear second is meshed with a transmission gear first. The testing mechanism includes a torque sensing system mounted on the main shaft and an optical measurement system mounted on one side of the base.

[0006] Furthermore, the central axis surfaces of clamp one and clamp two coincide. Clamp one includes an integrally formed support base and a side plate. A cylinder is fixed to the top of the side plate. An upper pressure block is fixed to the bottom end of the piston rod of the cylinder. A lower pressure block corresponding to the upper pressure block is provided on the top of the support base. An opening is provided in the middle of the side plate. The inner bottom surface of the opening is flush with the upper surface of the lower pressure block.

[0007] Furthermore, the torque sensing system includes a torque sensor, a coupling, and a signal transmitter. One end of the torque sensor is connected to the main shaft drive via a coupling, and the other end is connected to the electric chuck drive via another coupling. The signal transmitter is communicatively connected to a signal receiver in the control cabinet.

[0008] Furthermore, the optical measurement system includes a laser emitter, an industrial camera, and an information processor. The laser emitter and the industrial camera are fixed to one side of the clamping mechanism by a bracket, and the lens is aligned with the guide rail section between clamp one and clamp two.

[0009] Furthermore, the diameter of the second transmission gear is smaller than the diameter of the first transmission gear.

[0010] Furthermore, there are two linear guides, which are of equal length, aligned at both ends and parallel to each other, and the distance between the two linear guides is not greater than the bottom length of the fixture.

[0011] Furthermore, the control cabinet is electrically connected to the drive motor, the solenoid valve of the cylinder, the electric chuck, the rotary motor, the torque sensing system, and the optical measurement system, respectively.

[0012] The technical effects and advantages of this utility model are as follows: This automatic twisting machine for elevator guide rail processing is advanced in design, compact in structure, easy to use, and reliable in operation. Through the coordinated operation of the clamping mechanism, the torsion mechanism, and the detection mechanism, it realizes the automated measurement and precise correction of the guide rail torsion deformation. Its core advantage lies in the use of a torque sensing system to monitor the applied torque in real time, combined with an optical measurement system to perform non-contact detection of guide rail deformation. This transforms traditional manual operation, which relies on experience, into digital control, effectively avoiding the problems of over-correction or under-correction. The specially designed transmission gear set amplifies the torque through the diameter difference. Combined with the slider movement guided by the linear guide rail, the first clamp can be precisely adjusted to the position corresponding to the second clamp, thereby adapting to the processing needs of guide rails of different lengths. The control cabinet integrates the signal processing and motion control of all actuators, forming a closed-loop feedback system, which significantly improves the correction efficiency and accuracy, and is especially suitable for the rapid processing of long guide rails or complex deformation situations. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle; Figure 3 This is a vertical sectional view of the present invention from the rear view direction.

[0014] In the diagram: 100, base; 101, linear guide rail; 102, slider; 103, drive motor; 104, mounting base; 105, control cabinet; 200, clamping mechanism; 201, clamp one; 2011, cylinder; 2012, upper pressure block; 2013, lower pressure block; 2014, through port; 202, clamp two; 2021, spindle; 2022, transmission gear one; 2023, electric chuck; 300, torque application mechanism; 301, rotary motor; 302, transmission gear two; 400, detection mechanism; 401, torque sensing system; 402, optical measurement system. Detailed Implementation

[0015] 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.

[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] This utility model provides, for example Figure 1-3 The automatic twisting machine for processing elevator guide rails shown in the figure includes: A base 100 has linear guide rails 101 fixed on both sides of its top. A slider 102 is slidably connected to the linear guide rails 101. A drive motor 103 is provided at one end of the linear guide rails 101. A mounting base 104 is fixed on the top of the slider 102. A control cabinet 105 is fixed on one side of the base 100. The clamping mechanism 200 includes a first clamp 201 and a second clamp 202. The first clamp 201 is fixed to the top of the mounting base 104, and the second clamp 202 is fixed to one side of the top of the base 100. A main shaft 2021 passes through the middle of the second clamp 202. One end of the main shaft 2021 is keyed to a transmission gear 2022, and the other end is keyed to an electric chuck 2023. The torque application mechanism 300 includes a rotary motor 301 fixed to one side of the clamp 202. The output shaft of the rotary motor 301 passes through the clamp 202 and is keyed to a transmission gear 302. The transmission gear 302 meshes with the transmission gear 1 2022. The detection mechanism 400 includes a torque sensing system 401 mounted on the spindle 2021 and an optical measurement system 402 mounted on one side of the base 100.

[0019] In this technical solution, the torque sensing system 401 is connected to the main shaft 2021 and the electric chuck 2023 via a coupling, monitoring the torque changes during the torque application process in real time and transmitting the data to the signal receiver in the control cabinet 105 via a signal transmitter. The control cabinet 105 dynamically adjusts the output torque of the rotary motor 301 based on preset parameters and real-time feedback data, achieving closed-loop control. Using laser triangulation, the laser emitter of the optical measurement system 402 forms a reference spot on the guide rail surface. An industrial camera synchronously captures changes in the spot's position. The information processor calculates the guide rail's torsion angle and deformation using image analysis algorithms and transmits the results to the control cabinet 105. The control cabinet 105 integrates the torque and deformation data to determine if the correction is complete. If not, torque application continues until the accuracy requirements are met. The drive motor 103 drives the slider 102 to move via a lead screw drive or other means. The cooperation between the linear guide rail 101 and the slider 102 ensures that the fixture 201 can move precisely along the guide rail direction to adapt to the processing of guide rails of different lengths. The control cabinet 105 integrates the control logic of all actuators, and coordinates the actions of each mechanism through preset programs to ensure the efficiency and accuracy of the calibration process. Bearings are provided between the output shafts of the spindle 2021 and the rotary motor 301 and the fixture 202. The bearings can support and reduce the resistance of the output shafts of the spindle 2021 and the rotary motor 301, facilitating their rotation.

[0020] For example, see Figure 1 As shown, the central axis surfaces of clamp 1 201 and clamp 2 202 coincide. Clamp 1 201 includes an integrally formed support base and a side plate. A cylinder 2011 is fixed to the top of the side plate. An upper pressure block 2012 is fixed to the bottom end of the piston rod of the cylinder 2011. A lower pressure block 2013 corresponding to the upper pressure block 2012 is provided on the top of the support base. A through-hole 2014 is opened in the middle of the side plate. The inner bottom surface of the through-hole 2014 is flush with the upper surface of the lower pressure block 2013.

[0021] In this technical solution, the cylinder 2011 drives the upper pressure block 2012 to move downward, which cooperates with the lower pressure block 2013 to form a clamping force on the elevator guide rail, ensuring that the guide rail remains stable during the torsion process. By designing the through 2014, the guide rail to be tested can pass through the fixture 201 when the fixture moves, thus adapting to the processing requirements of guide rails of different lengths.

[0022] For example, see Figure 3 As shown, the torque sensing system 401 includes a torque sensor, a coupling, and a signal transmitter. One end of the torque sensor is connected to the main shaft 2021 via a coupling, and the other end is connected to the electric chuck 2023 via another coupling. The signal transmitter is connected to the signal receiver in the control cabinet 105.

[0023] In this technical solution, the torque sensor, as the core sensing element, directly determines the accuracy of torque control. The rigid connection between the coupling and the main shaft and electric chuck ensures the authenticity of torque transmission and avoids measurement errors caused by mechanical loosening. The signal transmitter adopts wireless transmission technology, which effectively avoids the interference and wear problems that may be caused by traditional cable connections, while improving the layout flexibility of the equipment. The signal receiver in the control cabinet has high-speed data processing capabilities and can analyze torque data in real time, providing a reliable basis for subsequent closed-loop control.

[0024] For example, see Figures 2-3 As shown, the optical measurement system 402 includes a laser emitter, an industrial camera, and an information processor. The laser emitter and the industrial camera are fixed to one side of the clamping mechanism 200 by a bracket, and the lens is aligned with the guide rail section between clamp one 201 and clamp two 202.

[0025] In this technical solution, the laser emitter in the optical measurement system uses a high-stability semiconductor laser, which emits a small spot diameter and concentrated energy, enabling it to form a clear and persistent reference point on the guide rail surface. The industrial camera is equipped with a high-resolution CMOS sensor, combined with customized image processing algorithms, which can accurately capture the minute displacement of the spot. Even if the guide rail deformation is only at the micrometer level, it can be accurately identified. The information processor's built-in algorithm library contains a variety of deformation analysis models, which can automatically select the optimal calculation strategy based on the material, size, and deformation characteristics of different guide rails, ensuring the accuracy and consistency of the measurement results.

[0026] For example, see Figures 2-3 As shown, the diameter of transmission gear 2 302 is smaller than the diameter of transmission gear 1 2022.

[0027] In this technical solution, the diameter difference between transmission gear 2 302 and transmission gear 1 2022 is designed to amplify the torque. The torque output by the rotary motor 301 is significantly enhanced after being transmitted through the gear set, which meets the correction requirements for long guide rails or complex deformation conditions.

[0028] For example, see Figures 1-2 As shown, there are two linear guides 101. The two linear guides 101 are of equal length, aligned at both ends and parallel to each other. The distance between the two linear guides 101 is not greater than the bottom length of the fixture 201.

[0029] In this technical solution, the layout of the dual linear guides 101 not only enhances the stability of the structure but also ensures the straightness and synchronization of the slider 102 during movement through its equal length, alignment, and parallel design. This design effectively avoids problems such as slider 102 jamming or offset caused by inconsistent lengths or parallelism deviations of the linear guides 101, thus guaranteeing the accuracy and repeatability of the fixture 201 when adjusting its position. Simultaneously, the reasonable spacing of the linear guides 101 ensures that the bottom of the fixture 201 completely covers the linear guides 101, avoiding weakened structural strength or unstable movement due to excessive spacing. Furthermore, the surface of the linear guides 101 undergoes precision grinding and heat treatment processes, improving surface hardness and wear resistance, extending the service life of the equipment, and reducing maintenance costs.

[0030] For example, see Figure 1 As shown, the control cabinet 105 is electrically connected to the drive motor 103, the solenoid valve of the cylinder 2011, the electric chuck 2023, the rotary motor 301, the torque sensing system 401, and the optical measurement system 402, respectively.

[0031] In this technical solution, the control cabinet serves as the "brain" of the entire system, integrating a PLC controller, a human-machine interface, and various safety protection modules. The PLC controller possesses powerful logic processing capabilities, simultaneously handling signals from the torque sensing system, optical measurement system, and various actuators to achieve coordinated control of multiple parameters. The human-machine interface utilizes a touchscreen design, allowing operators to set processing parameters, monitor equipment status, and view historical data through an intuitive graphical interface. Safety protection modules include overload protection, emergency stop buttons, and limit switches, which can quickly cut off power in abnormal situations, ensuring the safety of equipment and personnel.

[0032] Working Principle: When using this automatic twisting machine for elevator guide rail processing, the operator first places the elevator guide rail to be processed between clamp 1 201 and clamp 2 202, ensuring that both ends of the guide rail are in contact with the lower pressure block 2013 of clamp 1 201 and the electric chuck 2023 of clamp 2 202, respectively. Then, the equipment is started through the human-machine interface of the control cabinet 105. The solenoid valve of cylinder 2011 receives the control signal and drives the piston rod of cylinder 2011 to move downwards, causing the upper pressure block 2012 to engage with the lower pressure block 2013, thus twisting the guide rail... One end of the guide rail is firmly clamped, and simultaneously, the electric chuck 2023 clamps the other end of the guide rail. Then, the torque sensing system 401 starts working. The torque sensor monitors the torque changes transmitted by the spindle 2021 and the electric chuck 2023 in real time through the coupling, and wirelessly transmits the data to the signal receiver in the control cabinet 105 via the signal transmitter. At the same time, the laser emitter of the optical measurement system 402 forms a reference light spot on the surface of the guide rail under test. The industrial camera simultaneously captures the position of the light spot. The information processor calculates the initial torsion angle and deformation of the guide rail through the image analysis algorithm and transmits the results to the control cabinet 105. The control cabinet 105 dynamically adjusts the output torque of the rotary motor 301 through the PLC controller according to the preset processing parameters and real-time feedback data. The rotary motor 301 drives the transmission gear 2 302 to rotate, and the torque is amplified through the meshing transmission with the transmission gear 1 2022. The amplified torque is transmitted to the electric chuck 2023 through the spindle 2021, thereby applying a precise torsional force to the guide rail under test. During the torsion process, the drive motor 103 adjusts the torque according to the torque distribution. Control cabinet 105 instructs the adjustment of slider 102's position. Linear guide rail 101 and slider 102 cooperate to ensure fixture 201 moves smoothly along linear guide rail 101, adapting to the processing requirements of guide rails of different lengths. Optical measurement system 402 continuously monitors the deformation of the guide rail. When the torsion angle and deformation calculated by the information processor reach the preset accuracy range, control cabinet 105 determines the correction is complete and automatically controls rotary motor 301 to stop rotating. If the deformation does not meet the standard, the torsion and measurement process continues cyclically until the requirements are met. Throughout the correction process, the safety protection module of control cabinet 105 monitors parameters such as current and temperature in real time. If overload or abnormal vibration is detected, an emergency stop mechanism is immediately triggered to ensure equipment and personnel safety. After processing is complete, the operator receives a completion notification through the human-machine interface. Cylinder 2011 releases the upper pressure block 2012, and the corrected guide rail can be removed.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic twisting machine for processing elevator guide rails, characterized in that, include: A base (100) has linear guide rails (101) fixed on both sides of its top. A slider (102) is slidably connected on the linear guide rails (101). A drive motor (103) is provided at one end of the linear guide rails (101). A mounting base (104) is fixed on the top of the slider (102). A control cabinet (105) is fixed on one side of the base (100). The clamping mechanism (200) includes a clamp first (201) and a clamp second (202). The clamp first (201) is fixed to the top of the mounting base (104), and the clamp second (202) is fixed to one side of the top of the base (100). A main shaft (2021) passes through the middle of the clamp second (202). One end of the main shaft (2021) is keyed to a transmission gear first (2022), and the other end is keyed to an electric chuck (2023). Torque applying mechanism (300), the torque applying mechanism (300) includes a rotary motor (301) fixed to one side of clamp two (202), the output shaft of the rotary motor (301) is provided through clamp two (202), and a transmission gear two (302) is keyed on the output shaft, the transmission gear two (302) meshing with transmission gear one (2022); The detection mechanism (400) includes a torque sensing system (401) mounted on the spindle (2021) and an optical measurement system (402) mounted on one side of the base (100).

2. The automatic twisting machine for processing elevator guide rails according to claim 1, characterized in that: The central axis surfaces of clamp one (201) and clamp two (202) coincide. Clamp one (201) includes an integrally formed support base and a side plate. A cylinder (2011) is fixed on the top of the side plate. An upper pressure block (2012) is fixed at the bottom end of the piston rod of the cylinder (2011). A lower pressure block (2013) corresponding to the upper pressure block (2012) is provided on the top of the support base. A through-hole (2014) is opened in the middle of the side plate. The inner bottom surface of the through-hole (2014) is flush with the upper surface of the lower pressure block (2013).

3. The automatic twisting machine for processing elevator guide rails according to claim 1, characterized in that: The torque sensing system (401) includes a torque sensor, a coupling and a signal transmitter. One end of the torque sensor is connected to the main shaft (2021) via a coupling, and the other end is connected to the electric chuck (2023) via another coupling. The signal transmitter is connected to the signal receiver in the control cabinet (105).

4. The automatic twisting machine for processing elevator guide rails according to claim 1, characterized in that: The optical measurement system (402) includes a laser emitter, an industrial camera and an information processor. The laser emitter and the industrial camera are fixed to one side of the clamping mechanism (200) by a bracket, and the lens is aligned with the guide rail section between clamp one (201) and clamp two (202).

5. The automatic twisting machine for processing elevator guide rails according to claim 1, characterized in that: The diameter of the second transmission gear (302) is smaller than the diameter of the first transmission gear (2022).

6. The automatic twisting machine for processing elevator guide rails according to claim 1, characterized in that: There are two linear guides (101). The two linear guides (101) are of equal length, aligned at both ends and parallel to each other. The distance between the two linear guides (101) is not greater than the bottom length of the clamp (201).

7. The automatic twisting machine for processing elevator guide rails according to claim 1, characterized in that: The control cabinet (105) is electrically connected to the drive motor (103), the solenoid valve of the cylinder (2011), the electric chuck (2023), the rotary motor (301), the torque sensing system (401), and the optical measurement system (402), respectively.

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