Automatic centering and clamping system for planing elevator guide rail

Abstract

The invention relates to the technical field of planer components, and particularly discloses an automatic centering and clamping system for planing elevator guide rails, which comprises a machine body and a machining platform slidably mounted at the top of the machine body, a tool rest is arranged above the machining platform, and a synchronous centering mechanism is arranged between the tool rest and the machining platform. The synchronous centering mechanism comprises a plurality of mounting boxes fixedly mounted at the top of the machining platform, and a guide rail placing position is arranged between every two adjacent mounting boxes. According to the automatic guide rail clamping device, the displacement in the vertical direction is synchronously converted into the centering force in the horizontal direction, so that the clamping plate automatically clamps the guide rail in the process that the tool rest approaches the machining position, the centering clamping action is completely embedded into the motion path of the tool rest, time loss caused by step-by-step centering and machining operation is avoided, and the integrated effect of one-time descending and multiple actions is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of planer parts, and more particularly to an automatic centering clamping system for planing of elevator guide rails. Background Art

[0002] The elevator guide rail is the core guide component of the elevator operation, and its processing accuracy directly affects the stability and safety of the elevator. In the T-section structure of the elevator guide rail, the guide working surfaces on both sides of the web are the key functional surfaces in contact with the guide shoes, and must meet strict dimensional accuracy, parallelism and surface roughness requirements. At present, in the planing process of elevator guide rails, such as the automatic centering and clamping system for elevator guide rail planing disclosed in the Chinese invention patent with authorization announcement number CN115805335B, although it can perform centering and clamping operations on elevator guide rails, it still has certain defects: 1. The centering and processing processes are independent of each other, and an additional power source is required to perform the centering and clamping actions step by step. The centering components need to be driven by hydraulic cylinders to complete the multi-stage actions of rising-rotating-descending, resulting in poor continuity of the processing process and the need to improve production efficiency. In addition, during the centering process, it is necessary to gradually extend the two ends of the guide rail after the centering of the middle part of the guide rail is completed. However, the guide rail is a rigid component. After the middle section is fixed, when the centering components at both ends push the guide rail to move, the middle section will act as a fulcrum to produce a lever effect. If the displacement that needs to be adjusted at both ends is large, the middle fixed section will limit the free movement of the end, causing the guide rail to be forced to bear bending stress and produce plastic deformation or elastic deformation. The adjustment of each section will produce a reaction force on the fixed section. This stress is released after planing, which may cause the straightness of the guide rail to deteriorate.

[0003] 2. The single-point constraint on the top surface of the guide rail is only achieved by pressing down on the pressure plate, which cannot effectively limit the multi-directional displacement of the guide rail. During the planing process, the single top surface pressure is easily affected by vibration, causing the guide rail to deviate, and the centering state lacks a rigid locking mechanism. The clamping force is maintained by the pressure plate alone, resulting in the constraint of the guide rail being limited to a single dimension. It is difficult to resist the displacement of the wedge plate caused by the cutting force, and the machining accuracy is prone to fluctuations caused by vibration or uneven force, resulting in the need to improve the subsequent planing accuracy. Summary of the invention

[0004] The present invention provides an automatic centering clamping system for elevator guide rail planing processing to solve the above technical problems.

[0005] The present invention provides an automatic centering and clamping system for elevator guide rail planing processing, comprising a machine body and a processing platform slidably mounted on the top of the machine body, a tool holder is arranged above the processing platform, a synchronous centering mechanism is arranged between the tool holder and the processing platform, and the synchronous centering mechanism comprises a plurality of installation boxes fixedly mounted on the top of the processing platform, and the guide rail is placed between two adjacent installation boxes.

[0006] An alignment component for automatically aligning the guide rail as the tool rest approaches the processing platform is provided inside the installation box. A control component for controlling the alignment component as the tool rest moves is provided on the top of the installation box. A locking mechanism is provided on the top of the installation box. The locking mechanism includes a locking component for locking the alignment component as the tool rest approaches the processing platform and an extrusion part for extruding the locking component.

[0007] A fixing mechanism is provided on the side of the extrusion part away from the installation box (43). The fixing mechanism includes a plugging component for plugging and fixing the extrusion part and an unlocking component for unlocking the fixing mechanism as the tool rest moves away from the processing platform.

[0008] Further, a gantry is erected above the machine body. A mounting seat is fixedly installed on the gantry. A lifting table is slidably installed on the mounting seat. The tool rest is fixedly installed on the side of the lifting table away from the mounting seat.

[0009] Further, the alignment component includes a plurality of first reset springs symmetrically installed on the inner walls of both sides of the installation box along the Y-axis direction. The plurality of first reset springs on the same side are jointly installed with an L-shaped sliding plate at one end away from the inner wall of the installation. The horizontal section of the L-shaped sliding plate slidably penetrates the installation box. A clamping plate is fixedly installed on the side of the L-shaped sliding plate away from the installation box.

[0010] Further, the control component includes a control board slidably installed on the inner wall of the bottom of the installation box. A plurality of pressure-receiving grooves are provided on the side of the L-shaped sliding plate close to the control board. A plurality of slopes matching the corresponding pressure-receiving grooves are provided on the side of the control board close to the pressure-receiving grooves.

[0011] Further, two fixing plates symmetrically arranged along the Y-axis direction are fixedly installed on the top of the installation box. An upper wedge-shaped plate is slidably installed between the two fixing plates. The upper wedge-shaped plate slidably penetrates the inner wall of the top of the installation box. The top of the upper wedge-shaped plate is fixedly installed with a driving plate through a strong spring. Two limiting rods are fixedly installed at the bottom of the driving plate. The two limiting rods respectively slidably penetrate the two fixing plates. A lower wedge-shaped plate matching the upper wedge-shaped plate is fixedly installed on the top of the control board. A second reset spring is fixedly installed between the lower wedge-shaped plate and the inner wall of the installation box close to the L-shaped sliding plate.

[0012] Further, the locking component includes a fixed sleeve fixedly installed on the top of the installation box and a pressure-receiving plate fixedly installed on the side of the fixed sleeve away from the installation box through a third reset spring. A locking rod slidably penetrating the fixed sleeve is fixedly installed on the side of the pressure-receiving plate close to the fixed sleeve. A locking groove penetrating through and matching the locking rod is provided on the upper wedge-shaped plate.

[0013] Further, the extrusion part is L-shaped and fixedly installed on the side of the driving plate away from the installation box. A slope matching the pressure-receiving plate is provided on the bottom of the extrusion part close to the fixed sleeve.

[0014] Furthermore, the plug-in assembly includes a mounting plate fixedly mounted on the top of the machine body, a spring telescopic rod fixedly mounted on one side of the mounting plate close to the mounting box, a movable plate fixedly mounted on the telescopic end of the spring telescopic rod, an insert block fixedly mounted on one side of the movable plate close to the mounting box, and a slot matching the insert block is provided on the extruded piece.

[0015] Furthermore, the unlocking assembly includes two mounting rods fixedly mounted on the bottom of the lifting platform and symmetrical to each other along the Y-axis direction, the bottom ends of the mounting rods are integrally formed with extrusion blocks, and unlocking blocks matching the corresponding extrusion blocks are fixedly mounted on the parallel sides of the moving track of the moving plate.

[0016] Furthermore, a hydraulic cylinder is fixedly mounted on the mounting seat, and an output end of the hydraulic cylinder is fixedly connected to the lifting platform.

[0017] The beneficial effects of the present invention are: 1. In the present application, no additional power source is required during the descent of the tool holder. The driving plate is squeezed by the lifting platform to drive the inclined transmission of the upper wedge plate and the lower wedge plate, and the vertical displacement is synchronously converted into a centering force in the horizontal direction, so that the clamping plate automatically completes the clamping of the guide rail when the tool holder approaches the processing position, and the centering and clamping action is completely embedded in the movement path of the tool holder, avoiding the time loss of centering and processing step by step, and realizing the integrated effect of one descent and multiple actions, so that the entire centering and clamping process is naturally connected with the planing process, which greatly improves the continuity and production efficiency of the processing flow. In addition, the clamping plate moves synchronously toward the center, so that the side of the entire guide rail is subjected to uniform clamping force at the same time, so that the guide rail is in an overall free adjustment state during centering, and each part can adaptively fit the clamping plate according to the actual bending situation.

[0018] 2. In the present application, a centering system from centering to clamping to integrated locking is constructed through mechanical constraints. After the centering component realizes the centering clamping of the guide rail through the wedge plate transmission, the locking component converts the vertical pressure into horizontal thrust with the help of the continuous downward movement of the driving plate, so that the locking rod is quickly inserted into the locking groove, and the centering state is locked with a rigid pin to avoid the displacement of the wedge plate caused by vibration. The fixing component utilizes the downward movement of the extrusion part and completes the mechanical connection between the plug block and the slot through the automatic thrust of the spring telescopic rod, forming a vertical constraint on the extrusion part, and then indirectly fixing the horizontal position of the locking rod, upgrading the single-point constraint of the clamping method of the prior art to an omnidirectional constraint in three-dimensional space, ensuring that the guide rail remains stable at all times during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 The present invention Figure 1Partial enlarged view of part A

[0021] Figure 3 It is a schematic perspective view of the synchronous centering mechanism, locking mechanism and fixing mechanism parts of the present invention.

[0022] Figure 4 It is a schematic perspective view of the first reset spring, L-shaped sliding plate and clamping plate parts of the present invention.

[0023] Figure 5 It is a schematic perspective view of the fixing sleeve, the third reset spring, the pressure receiving plate, the locking rod, the locking groove and the extrusion part of the present invention.

[0024] Figure 6 It is a schematic perspective view of the mounting plate, spring telescopic rod, moving plate and insertion block parts of the present invention.

[0025] Figure 7 It is a schematic perspective view of the mounting rod and extrusion block parts of the present invention.

[0026] Figure 8 It is a schematic perspective view of the L-shaped sliding plate, clamping plate, control plate, pressure receiving groove and the second reset spring parts of the present invention.

[0027] In the figure: 1. Machine body; 2. Guide rail; 3. Processing platform; 4. Synchronous centering mechanism; 41. Centering component; 411. First reset spring; 412. L-shaped sliding plate; 413. Clamping plate; 42. Control component; 421. Control plate; 422. Pressure receiving groove; 423. Lower wedge plate; 424. Second reset spring; 425. Fixed plate; 426. Strong spring; 427. Driving plate; 428. Upper wedge plate; 429. Limiting rod; 43. Installation box; 5. Locking mechanism; 51. Locking component; 511. Fixing sleeve; 512. Third reset spring; 513. Pressure receiving plate; 514. Locking rod; 515. Locking groove; 52. Extrusion part; 6. Fixing mechanism; 61. Insertion component; 611. Mounting plate; 612. Spring telescopic rod; 613. Moving plate; 614. Insertion block; 615. Insertion slot; 62. Unlocking component; 621. Mounting rod; 622. Extrusion block; 623. Unlocking block; 7. Gantry; 8. Mounting seat; 9. Lifting platform; 10. Hydraulic cylinder; 11. Tool rest. Detailed implementation manners

[0028] Reference will now be made to exemplary embodiments to discuss the subject matter described herein. It should be understood that the discussion of these embodiments is intended to enable those skilled in the art to better understand and thus implement the subject matter described herein. Changes may be made to the functions and arrangements of the elements discussed without departing from the scope of protection of the content of this specification. Each example may omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples may also be combined in other examples.

[0029] Referring to Figure 1 and Figure 2 , in this embodiment, an automatic centering and clamping system for elevator guide rail planing is proposed, which includes a machine body 1 and a processing platform 3 slidably mounted on the top of the machine body 1. A tool holder 11 is arranged above the processing platform 3, and a synchronous centering mechanism 4 is arranged between the tool holder 11 and the processing platform 3. The synchronous centering mechanism 4 includes a plurality of mounting boxes 43 fixedly mounted on the top of the processing platform 3. The space between two adjacent mounting boxes 43 is where the guide rail 2 is placed. A gantry 7 is erected above the machine body 1. An installation seat 8 is fixedly mounted on the gantry 7. A lifting platform 9 is slidably mounted on the installation seat 8. The tool holder 11 is fixedly mounted on the side of the lifting platform 9 away from the installation seat 8. A hydraulic cylinder 10 is fixedly mounted on the installation seat 8, and the output end of the hydraulic cylinder 10 is fixedly connected to the lifting platform 9.

[0030] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 8 , a centering component 41 for automatically centering the guide rail 2 as the tool holder 11 approaches the processing platform 3 is arranged inside the mounting box 43. A control component 42 for controlling the centering component 41 as the tool holder 11 moves is arranged on the top of the mounting box 43. The centering component 41 includes a plurality of first reset springs 411 symmetrically mounted on the inner walls of both sides of the mounting box 43 along the Y-axis direction. The ends of the plurality of first reset springs 411 on the same side away from the inner wall are jointly mounted with an L-shaped sliding plate 412. The horizontal section of the L-shaped sliding plate 412 slidably penetrates through the mounting box 43, and a clamping plate 413 is fixedly mounted on the side of the L-shaped sliding plate 412 away from the mounting box 43.

[0031] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 8 , the control component 42 includes a control board 421 slidably mounted on the inner wall of the bottom of the mounting box 43. A plurality of pressure-receiving grooves 422 are formed on the side of the L-shaped sliding plate 412 close to the control board 421, and a plurality of slopes matching the corresponding pressure-receiving grooves 422 are formed on the side of the control board 421 close to the pressure-receiving grooves 422.

[0032] Referring to Figure 2 , Figure 3 ,Figure 4 and Figure 8 On the top of the mounting box 43, two fixing plates 425 that are symmetric with each other along the Y-axis direction are fixedly installed. A upper wedge plate 428 is slidably installed between the two fixing plates 425. The upper wedge plate 428 slidably penetrates through the inner wall of the top of the mounting box 43. The top of the upper wedge plate 428 is fixedly installed with a driving plate 427 through a strong spring 426. The bottom of the driving plate 427 is fixedly installed with two limiting rods 429. The two limiting rods 429 respectively slide through the two fixing plates 425. The top of the control plate 421 is fixedly installed with a lower wedge plate 423 that cooperates with the upper wedge plate 428. A second return spring 424 is fixedly installed between the lower wedge plate 423 and the inner wall of the mounting box 43 close to the L-shaped sliding plate 412.

[0033] During specific use, when the hydraulic cylinder 10 drives the lifting platform 9 to drive the tool rest 11 to descend, the lifting platform 9 will gradually approach and start to press down the lifting plate. During this process, the lifting plate pushes the upper wedge plate 428 to move downward through the strong spring 426, so that the bottom inclined surface of the upper wedge plate 428 contacts the inclined surface of the lower wedge plate 423, generating a horizontal component force to push the lower wedge plate 423 to slide away from the L-shaped sliding plate 412 and compress the second return spring 424, thereby driving the control plate 421 to move accordingly. When the control plate 421 moves, the inclined surface on its side presses the pressure-receiving groove 422 of the L-shaped sliding plate 412, thereby generating a horizontal thrust force, forcing the L-shaped sliding plate 412 to overcome the elastic force of the first return spring 411 and move away from the mounting box 43, and then driving the clamping plate 413 to move synchronously and approach the guide rail 2. When the inclined surfaces of the upper wedge plate 428 and the lower wedge plate 423 are staggered (that is, when their planes are in contact), the clamping plate 413 clamps the guide rail 2 to achieve automatic centering. At the same time, at this time, the bottom of the upper wedge plate 428 abuts against the control plate 421.

[0034] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown in , , , and , a locking mechanism 5 is provided on the top of the mounting box 43. The locking mechanism 5 includes a locking component 51 for locking the centering component 41 as the tool rest 11 approaches the processing platform 3 and an extrusion member 52 for extruding the locking component 51.

[0035] Refer to Figure 2 、 Figure 3 and Figure 5 As shown in , the locking component 51 includes a fixed sleeve 511 fixedly installed on the top of the mounting box 43 and a pressure-receiving plate 513 fixedly installed on the side of the fixed sleeve 511 away from the mounting box 43 through a third return spring 512. A locking rod 514 that slidably penetrates through the fixed sleeve 511 is fixedly installed on the side of the pressure-receiving plate 513 close to the fixed sleeve 511. A locking groove 515 that penetrates through and cooperates with the locking rod 514 is provided on the upper wedge plate 428.

[0036] Refer to Figure 2 、 Figure 3 and Figure 5 The extruding member 52 is in an L shape and is fixedly installed on the side of the driving plate 427 away from the mounting box 43. A slope matching the pressure receiving plate 513 is provided on the bottom of the extruding member 52 near the side of the fixed sleeve 511.

[0037] During specific use, when the tool rest 11 descends with the lifting table 9 until the centering assembly 41 completes the clamping of the guide rail 2, the driving plate 427 continues to move downward. At this time, since the bottom of the upper wedge plate 428 abuts against the control plate 421, the upper wedge plate 428 will not continue to be pushed to move, but will start to gradually compress the strong spring 426. During this process, the continuous movement of the driving plate 427 will drive the extruding member 52 to start extruding the pressure receiving plate 513, converting the downward pressure into a horizontal thrust on the pressure receiving plate 513, forcing the pressure receiving plate 513 to overcome the elastic force of the return spring three 512 and slide towards the fixed sleeve 511, driving the locking rod 514 to insert into the locking groove 515. When the locking rod 514 is completely embedded in the locking groove 515, the vertical position of the upper wedge plate 428 is locked to fix the positions of the control plate 421 and the L-shaped sliding plate 412, ensuring that the clamping plate 413 will not loosen due to planing vibration, thereby greatly improving the stability of centering clamping and further improving the stability of subsequent planing operations.

[0038] Refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 A fixing mechanism 6 is provided on the side of the extruding member 52 away from the mounting box (43). The fixing mechanism 6 includes a plugging component 61 for plugging and fixing the extruding member 52 and an unlocking component 62 for unlocking the fixing mechanism 6 as the tool rest 11 moves away from the processing platform 3. The plugging component 61 includes a mounting plate 611 fixedly installed on the top of the machine body 1. A spring telescopic rod 612 is fixedly installed on the side of the mounting plate 611 close to the mounting box 43. A moving plate 613 is fixedly installed at the telescopic end of the spring telescopic rod 612. A plug 614 is fixedly installed on the side of the moving plate 613 close to the mounting box 43. A slope is provided on the top of the plug 614. A slot 615 matching the plug 614 is provided on the extruding member 52.

[0039] Refer to Figure 5 、 Figure 6 and Figure 7 The unlocking component 62 includes two mounting rods 621 fixedly installed at the bottom of the lifting table 9 and symmetrically arranged along the Y-axis direction. An extrusion block 622 is integrally formed at the bottom end of the mounting rod 621. Unlocking blocks 623 matching the corresponding extrusion blocks 622 are fixedly installed on the parallel sides of the moving trajectory of the moving plate 613.

[0040] During specific use, when the lifting platform 9 drives the tool rest 11 to move downward, during the downward movement of the pressing member 52, the slope on the top of the insertion block 614 will be pressed, driving the insertion block 614 to move away from the pressing member 52 and compressing the spring telescopic rod 612. As the pressing member 52 continues to move downward, when the slot 615 aligns with the insertion block 614, the spring telescopic rod 612 pushes the insertion block 614 to reset and insert into the slot 615, forming a mechanical plug-in fixation. The pre-tightening force of the spring telescopic rod 612 ensures that the insertion block 614 fits tightly with the slot 615, realizing the vertical plug-in lock fixation of the pressing member 52, thereby realizing the horizontal locking of the locking rod 514, and further stabilizing the locking state of the locking mechanism 5, avoiding the horizontal displacement of the locking rod 514 due to planing vibration. Thus, the integrated locking fixation among the centering component 41, the locking component 51, and the fixing component is realized, greatly improving the centering and clamping stability of the centering component 41.

[0041] When the integrated locking fixation among the centering component 41, the locking component 51, and the fixing component is completed, the tool on the tool rest 11 also moves to a position opposite to the web of the guide rail 2. Then, the processing platform 3 is controlled to move in the negative Y-axis direction, driving the guide rail 2 to pass through the tool for planing operation.

[0042] After the planing operation is completed, the hydraulic cylinder 10 drives the lifting platform 9 to drive the tool rest 11 to rise, and the synchronous centering mechanism 4, the locking mechanism 5, and the fixing mechanism 6 are gradually reset in the completely reverse order of the clamping process: as the lifting platform 9 rises, the pressing block 622 on the mounting rod 621 at the bottom of the lifting platform 9 will contact the unlocking blocks 623 on both sides of the moving plate 613, converting the vertical upward movement into a horizontal thrust through the inclined plane, forcing the moving plate 613 to move away from the mounting box (43) side against the elastic force of the spring telescopic rod 612, driving the insertion block 614 to completely withdraw from the slot 615 of the pressing member 52, releasing the mechanical lock of the pressing member 52, creating conditions for the subsequent unlocking process. After releasing the plug-in lock fixation of the pressing member 52, the strong spring 426 starts to push the driving plate 427 to move upward and reset, so that the pressing member 52 gradually moves upward and disengages from the pressure receiving plate 513. The pressure receiving plate 513 slides away from the mounting box (43) side under the action of the return spring three 512, driving the locking rod 514 to withdraw from the locking slot 515 of the upper wedge plate 428, releasing the vertical position lock of the upper wedge plate 428. At this time, the upper wedge plate 428 returns to the movable state.

[0043] After the upper wedge plate 428 returns to the movable state, the driving plate 427 pulls the upper wedge plate 428 upward through the strong spring 426, separating the upper wedge plate 428 from the lower wedge plate 423. The lower wedge plate 423 slides toward the side close to the L-shaped sliding plate 412 under the elastic force of the second return spring 424, driving the control plate 421 to move synchronously. The engagement relationship between the slope on the side of the control plate 421 and the pressure groove 422 of the L-shaped sliding plate 412 is released. The L-shaped sliding plate 412 moves toward the center of the mounting box 43 under the action of the first return spring 411, driving the clamping plate 413 away from the guide rail 2, and finally realizing the complete loosening of the centering assembly 41.

[0044] Then the second return spring 424 starts to reset, pushing the lower wedge plate 423 to move and reset toward the side away from the locking rod 514. At the same time, the first return spring 411 drives the L-shaped sliding plate 412 to reset, and then drives the clamping plate 413 to release the centering clamping of the guide rail 2. The entire reset process realizes a fully automatic reverse action chain from unlocking the fixing mechanism 6 to loosening the centering assembly 41 through the release of spring energy storage and the reverse action of inclined plane transmission, ensuring a quick return to the initial state without manual intervention and providing a reliable guarantee for continuous processing.

[0045] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. An automatic centering and clamping system for elevator guide rail planing, comprising: The machine body (1) and the processing platform (3) slidably mounted on the top of the machine body (1). Above the processing platform (3), a tool holder (11) is provided. It is characterized in that a synchronous centering mechanism (4) is provided between the tool holder (11) and the processing platform (3). The synchronous centering mechanism (4) includes a plurality of mounting boxes (43) fixedly mounted on the top of the processing platform (3). Between two adjacent mounting boxes (43) is the place for the guide rail (2). Inside the mounting box (43), a centering component (41) is provided for automatically centering the guide rail (2) as the tool holder (11) approaches the processing platform (3). On the top of the mounting box (43), a control component (42) is provided for controlling the centering component (41) as the tool holder (11) moves. On the top of the mounting box (43), a locking mechanism (5) is provided. The locking mechanism (5) includes a locking component (51) for locking the centering component (41) as the tool holder (11) approaches the processing platform (3) and an extrusion piece (52) for extruding the locking component (51). On the side of the extrusion piece (52) away from the mounting box (43), a fixing mechanism (6) is provided. The fixing mechanism (6) includes a plugging component (61) for plugging and fixing the extrusion piece (52) and an unlocking component (62) for unlocking the fixing mechanism (6) as the tool holder (11) moves away from the processing platform (3).

2. The automatic centering and clamping system for elevator guide rail planing according to claim 1, wherein Above the machine body (1), a gantry (7) is erected. On the gantry (7), a mounting seat (8) is fixedly mounted. On the mounting seat (8), a lifting platform (9) is slidably mounted. The tool holder (11) is fixedly mounted on the side of the lifting platform (9) away from the mounting seat (8).

3. An automatic centering and clamping system for elevator guide rail planing according to claim 1, characterized in that, The centering component (41) includes a plurality of first reset springs (411) symmetrically mounted on the inner walls on both sides of the mounting box (43) along the Y-axis direction. One end of the plurality of first reset springs (411) on the same side away from the mounting inner wall is commonly mounted with an L-shaped sliding plate (412). The horizontal section of the L-shaped sliding plate (412) slidably penetrates through the mounting box (43). On the side of the L-shaped sliding plate (412) away from the mounting box (43), a clamping plate (413) is fixedly mounted.

4. An automatic centering and clamping system for elevator guide rail planing according to claim 3, characterized in that, The control component (42) includes a control board (421) slidably mounted on the inner wall of the bottom of the mounting box (43). On the side of the L-shaped sliding plate (412) close to the control board (421), a plurality of pressure-receiving grooves (422) are provided. On the side of the control board (421) close to the pressure-receiving grooves (422), a plurality of slopes are provided that are matched with the corresponding pressure-receiving grooves (422).

5. An automatic centering and clamping system for elevator guide rail planing according to claim 4, characterized in that, On the top of the installation box (43), two fixing plates (425) that are symmetric with each other along the Y-axis direction are fixedly installed. A upper wedge plate (428) is slidably installed between the two fixing plates (425). The upper wedge plate (428) slidably penetrates through the inner wall of the top of the installation box (43). The top of the upper wedge plate (428) is fixedly installed with a driving plate (427) through a strong spring (426). The bottom of the driving plate (427) is fixedly installed with two limiting rods (429). The two limiting rods (429) respectively slidably penetrate through the two fixing plates (425). The top of the control plate (421) is fixedly installed with a lower wedge plate (423) that cooperates with the upper wedge plate (428). A second reset spring (424) is fixedly installed between the lower wedge plate (423) and the inner wall of the installation box (43) close to the L-shaped sliding plate (412).

6. The automatic centering and clamping system for elevator guide rail planing according to claim 5, characterized in that, The locking assembly (51) includes a fixed sleeve (511) fixedly installed on the top of the installation box (43) and a pressure receiving plate (513) fixedly installed on the side of the fixed sleeve (511) away from the installation box (43) through a third reset spring (512). A locking rod (514) that slidably penetrates through the fixed sleeve (511) is fixedly installed on the side of the pressure receiving plate (513) close to the fixed sleeve (511). A locking groove (515) that penetrates through and cooperates with the locking rod (514) is formed on the upper wedge plate (428).

7. An automatic centering and clamping system for elevator guide rail planing according to claim 6, characterized in that, The pressing member (52) is L-shaped and is fixedly installed on the side of the driving plate (427) away from the installation box (43). A slope that cooperates with the pressure receiving plate (513) is formed on the bottom of the pressing member (52) close to the fixed sleeve (511).

8. An automatic centering and clamping system for elevator guide rail planing according to claim 7, characterized in that, The plugging assembly (61) includes a mounting plate (611) fixedly installed on the top of the machine body (1). A spring telescopic rod (612) is fixedly installed on the side of the mounting plate (611) close to the installation box (43). The telescopic end of the spring telescopic rod (612) is fixedly installed with a moving plate (613). A plug (614) is fixedly installed on the side of the moving plate (613) close to the installation box (43). A slot (615) that cooperates with the plug (614) is formed on the pressing member (52).

9. The automatic centering and clamping system for elevator guide rail planing according to claim 8, characterized in that, The unlocking assembly (62) includes two mounting rods (621) that are symmetric with each other along the Y-axis direction and are fixedly installed at the bottom of the lifting platform (9). An extrusion block (622) is integrally formed at the bottom end of the mounting rod (621). Unlocking blocks (623) that cooperate with the corresponding extrusion blocks (622) are fixedly installed on the parallel sides of the moving track of the moving plate (613).

10. The automatic centering and clamping system for elevator guide rail planing processing according to claim 2, wherein A hydraulic cylinder (10) is fixedly installed on the mounting seat (8). The output end of the hydraulic cylinder (10) is fixedly connected to the lifting platform (9).

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