Steel cutting device for elevator guide rail processing

Abstract

The present invention discloses a steel cutting device for processing elevator guide rails, which relates to the technical field of steel cutting equipment. The cutting device includes an operating frame, wherein a loading guard plate and a unloading guard plate are respectively provided at the lower left side and the upper right side of the operating frame. A conveyor chain is provided at the bottom of the operating frame, a conveyor frame is provided on the conveyor chain, a heightening pad is provided on the conveyor frame, and a guide rail body is placed on the heightening pad. The operating frame is provided with a sliding frame and a lateral adjustment screw rod, and the lateral adjustment screw rod is rotatably assembled with the operating frame. The present invention overcomes the shortcomings of the prior art. By utilizing the feeding characteristics of the guide rail and the positioning and clamping method, the guide rail is subjected to a streamlined cyclic processing of loading, waiting, cutting, and unloading. This effectively improves the overall cutting and processing efficiency and has high social use value and application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of steel cutting equipment, and in particular to a steel cutting device for processing elevator guide rails. Background Art

[0002] Elevator guide rails are elevator components consisting of steel rails and connecting plates. They are two or more rows of vertical or inclined rigid rails installed in the elevator shaft or between floors. They are mainly used to ensure that the car and counterweight move up and down along them, and that the steps of escalators and moving walkways move inclined or horizontally along them, providing guidance for the elevator car, counterweight device or steps. The main types include T-type guide rails, hollow guide rails, L-type guide rails, C-type guide rails, H-type guide rails and sliding guide rails.

[0003] In the process of producing T-type elevator guide rails, cutting equipment is needed to process and segment them to meet subsequent usage requirements. During the cutting process, the guide rail needs to be positioned first to confirm the part that needs to be cut, and then it is cut. After the cutting is completed, the next guide rail is positioned and clamped. This type of cutting process is inefficient and requires manual fixation of the guide rail position, which is prone to deviation in the cutting position and is inconvenient to quickly adjust according to different guide rail cutting lengths. Summary of the Invention

[0004] In order to improve the efficiency of guide rail cutting and solve the problem of complicated operation steps required for guide rail positioning, cutting and adjustment, the present invention adopts the following technical solutions:

[0005] A steel cutting device for processing elevator guide rails comprises an operating frame, a loading guard plate and a unloading guard plate are respectively provided at the lower left side and the upper right side of the operating frame, a conveyor chain is provided at the bottom of the operating frame, a conveyor frame is provided on the conveyor chain, a heightening pad is provided on the conveyor frame, a guide rail body is placed on the heightening pad, a sliding frame and a transverse adjustment screw rod are provided on the operating frame, the sliding frame is fixedly connected to the operating frame, the transverse adjustment screw rod is rotatably fitted with the operating frame, a reciprocating transverse seat slidably fitted with a threaded sleeve of the transverse adjustment screw rod is slidably fitted on the sliding frame, and a sawing device for cutting the guide rail body is slidably fitted on the reciprocating transverse seat;

[0006] A transverse frame and a transmission shaft are provided at the bottom inner side of the operating frame. The transmission shaft and the operating frame are rotatably mounted. A synchronous six-sided groove is provided in the middle section of the transmission shaft. A two-way transmission mechanism is slidably mounted on the transverse frame. Both ends of the operating frame are rotatably provided with swivels, and the swivels are provided with a loading mechanism for clamping the guide rail body.

[0007] Preferably, the bidirectional transmission mechanism includes an installation frame that is slidably mounted on the transverse frame, an active bevel gear is rotatably provided on the inner side surface of the installation frame, a driven bevel gear 2 is rotatably provided on the inner top surface of the installation frame that meshes with the active bevel gear, a ratchet pawl disk 1 is provided on the top of the driven bevel gear 2, and a reciprocating screw rod that is threadedly mounted on the base frame is provided on the top of the ratchet pawl disk 1.

[0008] Preferably, a driven bevel gear 1 that is rotatably engaged with the driving bevel gear is provided on the inner bottom surface of the installation frame, and a driving motor 2 that drives the driving bevel gear to rotate is provided on the outer side surface of the installation frame.

[0009] Preferably, the bottom of the driven bevel gear 1 is connected to a ratchet pawl disc 2 located at the lower part of the bottom surface of the installation frame, and a transmission bevel gear is provided at the bottom end of the ratchet pawl disc 2.

[0010] Preferably, a synchronization plate which does not affect the rotation of the synchronization hexagonal groove is provided on the side of the bottom surface of the mounting frame, and a synchronization bevel gear which is rotatably provided on the synchronization plate and slides with the synchronization hexagonal groove is provided, and the teeth of the synchronization bevel gear mesh with the teeth of the transmission bevel gear.

[0011] Preferably, a driving motor 1 for driving the lateral adjustment screw to rotate is provided at the end of the operating frame, a spur gear 1 connected to the end of the transmission shaft is provided at the bottom of the outer side surface of the operating frame, and a spur gear 2 is provided on the operating frame for transmission meshing and matching with the spur gear 1 and the tooth groove respectively.

[0012] Preferably, a rotation limit frame is provided at both ends of the inner side of the operating frame, and a rotation groove and a limit groove are respectively opened on the rotation limit frame. The rotation limit frame is provided with a forward arc rack and a reverse arc rack located at the corresponding positions of the two rotation grooves.

[0013] Preferably, the feeding mechanism is rotationally and slidingly matched with the rotating limit frame, and the feeding mechanism includes a fixed plate connected to the rotating ring.

[0014] Preferably, a lower clamping plate is provided on one side of the bottom surface of the fixed plate, an adjusting screw is rotatably provided on the top surface of the fixed plate, a top plate is threadedly mounted on the adjusting screw, a slide plate is provided on the bottom surface of the top plate that is movably mounted on the top surface of the fixed plate, and an upper clamping plate is provided at the bottom end of the slide plate that cooperates with the lower clamping plate to clamp the guide rail body.

[0015] Preferably, the top end of the adjusting screw is provided with an adjusting gear which is respectively engaged with the forward arc-shaped rack and the reverse arc-shaped rack, and the top surface of the adjusting gear is provided with a limit block which can rotate in a rotating groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up the loading guard plate and the unloading guard plate, and utilizing the mutual cooperation between the swivel, the loading mechanism and the conveyor chain, the guide rail body can carry out a cyclic cutting process of loading, waiting, cutting and unloading around the loading guard plate and the unloading guard plate, thereby effectively improving the overall cutting efficiency of the equipment.

[0018] By setting the horizontal adjustment screw rod and utilizing the mutual cooperation between the reciprocating transverse movement seat, the base frame and the sawing equipment, the cutting position of the guide rail body can be adjusted according to the cutting position, which facilitates the cutting operation of guide rail bodies of different lengths.

[0019] By setting up a two-way transmission mechanism and adjusting the rotation direction of the ratchet pawl plate 1 and the ratchet pawl plate 2, the rotation of the active bevel gear can only drive the reciprocating screw rod or the transmission bevel gear to rotate, so that the drive motor 2 can control and adjust the height of the sawing equipment and the rotation of the rotating ring respectively, saving the capital investment in equipment manufacturing. At the same time, when the sawing equipment is cutting the guide rail body, the height of the sawing equipment can be adjusted, which plays a synergistic and efficient role.

[0020] By setting up the rotation limit frame, the adjustment gear can be rotated according to the position matching relationship between the feeding mechanism and the guide rail body, thereby completing the clamping and release operation of the guide rail body. When the guide rail body is cut, the feeding mechanism will clamp the guide rail body.

[0021] By setting the forward arc rack and the reverse arc rack, the adjustment gear can rotate forward and reverse, thereby controlling the relative position height between the upper clamping plate and the lower clamping plate to adjust whether it clamps the guide rail body.

[0022] In summary, the present invention overcomes the shortcomings of the existing technology. Through the feeding characteristics of the guide rail, the guide rail is loaded, waited, cut and unloaded in an assembly line cycle by using a positioning and clamping method, which effectively improves the overall cutting and processing efficiency. It has high social use value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is an exploded schematic diagram of the overall structure of the present invention;

[0025] Figure 2It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the structural cross section of the present invention;

[0027] Figure 4 Schematic diagram of the structural position of the rotating ring in the present invention;

[0028] Figure 5 Schematic diagram of the structure of the bidirectional transmission mechanism of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the operating frame in the present invention;

[0030] Figure 7 Schematic diagram of the structural position of the rotating limit frame and the feeding mechanism in the present invention;

[0031] Figure 8 Schematic diagram of the structural position of the operating frame and the rotation limiting frame in the present invention;

[0032] Figure 9 It is a structural schematic diagram of the feeding mechanism in the present invention.

[0033] In the figure: 100, loading guard plate; 200, unloading guard plate; 300, conveyor chain; 3001, conveyor frame; 3002, heightening pad; 400, guide rail body; 1, operating frame; 101, sliding frame; 102, lateral adjustment screw; 1021, reciprocating traverse seat; 1022, driving motor 1; 103, spur gear 1; 104, spur gear 2; 105, traverse frame; 106, transmission shaft; 1061, synchronous six-sided groove; 2, swivel; 21, tooth groove; 3, rotation limit frame; 301, rotation groove; 302, limit groove; 31, positive arc rack; 32, negative arc rack; 5, Sawing equipment; 51. Base frame; 6. Feeding mechanism; 601. Fixed plate; 602. Lower clamping plate; 603. Adjusting screw; 604. Top plate; 605. Slide plate; 606. Upper clamping plate; 607. Adjusting gear; 608. Limit block; 7. Bidirectional transmission mechanism; 701. Mounting frame; 7011. Active bevel gear; 7012. Driving motor 2; 7013. Driven bevel gear 1; 7014. Driven bevel gear 2; 7015. Synchronizing plate; 7016. Synchronizing bevel gear; 702. Ratchet and pawl disc 1; 703. Reciprocating screw; 704. Ratchet and pawl disc 2; 705. Transmission bevel gear. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] Example 1: Reference Figure 1-9 , a steel cutting device for processing elevator guide rails, comprising an operating frame 1, a loading guard plate 100 and a unloading guard plate 200 are respectively provided on the lower left side and the upper right side of the operating frame 1, a conveyor chain 300 is provided at the bottom of the operating frame 1, a conveyor frame 3001 is provided on the conveyor chain 300, a heightening pad 3002 is provided on the conveyor frame 3001, a guide rail body 400 is placed on the heightening pad 3002, a sliding frame 101 and a transverse adjustment screw rod 102 are provided on the operating frame 1, the sliding frame 101 is fixedly connected to the operating frame 1, the transverse adjustment screw rod 102 is rotatably fitted with the operating frame 1, a reciprocating transverse seat 1021 which is threadedly fitted with the transverse adjustment screw rod 102 is slidably fitted on the sliding frame 101, and a sawing device 5 for cutting the guide rail body 400 is slidably fitted on the reciprocating transverse seat 1021, and the running direction of the conveyor chain 300 is as follows Figure 2 As shown, the conveyor chain 300 moves from right to left. When the conveyor frame 3001 drives the guide rail body 400 to a position directly below the swivel 2, the conveyor chain 300 stops moving until the loading mechanism 6 is able to clamp the guide rail body 400. Then, as the loading mechanism 6 moves, the conveyor chain 300 follows its movement, so that the loading mechanism 6 can take the guide rail body 400 away from the inside of the conveyor frame 3001.

[0036] A transverse frame 105 and a transmission shaft 106 are provided at the bottom inner side of the operating frame 1. The transmission shaft 106 is rotatably mounted on the operating frame 1. A synchronous six-sided groove 1061 is provided in the middle section of the transmission shaft 106. A two-way transmission mechanism 7 is slidingly mounted on the transverse frame 105. A swivel 2 is rotatably provided at both ends of the operating frame 1. The swivel 2 is provided with a loading mechanism 6 for clamping the guide rail body 400. Through the setting of the two-way transmission mechanism 7, the height of the sawing equipment 5 can be adjusted separately, or the swivel 2 can be driven to rotate separately, and the operation of the two will not be affected by each other.

[0037] Specifically, refer to Figure 1 、 Figure 5 and Figure 6The bidirectional transmission mechanism 7 includes a mounting frame 701 that is slidably mounted on the transverse frame 105. A driving bevel gear 7011 is provided on the inner side surface of the mounting frame 701 for rotation. A driven bevel gear 2 7014 that meshes with the driving bevel gear 7011 is provided on the inner top surface of the mounting frame 701 for rotation. A ratchet pawl disk 1 702 is provided on the top of the driven bevel gear 2 7014. A reciprocating screw rod 703 that is threadedly mounted on the base frame 51 is provided on the top of the ratchet pawl disk 1 702. The mounting frame 701 can move left and right on the transverse frame 105, and the transverse frame 105 can provide guidance and stability for the movement of the mounting frame 701.

[0038] Specifically, refer to Figure 5 and Figure 6 The bottom surface of the inner side of the mounting frame 701 is provided with a driven bevel gear 7013 that engages with the active bevel gear 7011, and the outer side of the mounting frame 701 is provided with a driving motor 7012 that drives the active bevel gear 7011 to rotate. The rotation speed and direction of the active bevel gear 7011 are controlled and adjusted by the driving motor 7012.

[0039] Specifically, refer to Figure 5 and Figure 6 The bottom of the driven bevel gear 7013 is connected to the ratchet pawl plate 2 704 located at the lower part of the bottom surface of the mounting frame 701, and the bottom end of the ratchet pawl plate 2 704 is provided with a transmission bevel gear 705, which drives the driven bevel gear 1 7013 and the driven bevel gear 2 7014 to rotate synchronously through the active bevel gear 7011, but the rotation of the reciprocating screw rod 703 and the transmission bevel gear 705 is controlled respectively by the ratchet pawl plate 1 702 and the ratchet pawl plate 2 704, so that when the active bevel gear 7011 rotates forward, the rotation of the driven bevel gear 1 7013 can drive the ratchet pawl plate 2 704 to rotate, and the rotation of the driven bevel gear 2 7014 will not drive the ratchet pawl plate 1 702 to rotate, and the reciprocating screw rod 703 and the transmission bevel gear 705 are controlled respectively. The rod 703 is in a stopped state, so that the ratchet pawl plate 2 704 drives the transmission bevel gear 705 to rotate, thereby indirectly rotating the rotating ring 2. When the active bevel gear 7011 rotates in the opposite direction, the driven bevel gear 1 7013 will not drive the ratchet pawl plate 2 704 to rotate, so that the transmission bevel gear 705 is in a stopped state, and the driven bevel gear 2 7014 will drive the ratchet pawl plate 1 702 to rotate, thereby allowing the ratchet pawl plate 1 702 to drive the reciprocating screw rod 703 to rotate, so that the base frame 51 can be adjusted in height according to the rotation of the reciprocating screw rod 703, thereby adjusting the cutting height of the sawing device 5, so as to allow the sawing device 5 to saw the guide rail bodies 400 of different thicknesses.

[0040] Specifically, refer to Figure 5 and Figure 6, a synchronization plate 7015 is provided on the side of the bottom surface of the mounting frame 701, which does not affect the rotation of the synchronization six-sided groove 1061. A synchronization bevel gear 7016 is provided on the synchronization plate 7015, which is slidably fitted with the synchronization six-sided groove 1061. The teeth of the synchronization bevel gear 7016 are meshed with the teeth of the transmission bevel gear 705. A through-hole is provided on the synchronization plate 7015, and the aperture is larger than the diameter of the synchronization six-sided groove 1061, so that when the synchronization six-sided groove 1061 rotates, the synchronization plate 7015 will not block it. The rotation of the transmission bevel gear 705 drives the synchronization bevel gear 7016 to rotate. The synchronization bevel gear 7016 can only move left and right on the synchronization six-sided groove 1061. The rotation of the synchronization bevel gear 7016 will synchronously drive the synchronization six-sided groove 1061 to rotate, thereby rotating the transmission shaft 106.

[0041] Specifically, refer to Figure 2 、 Figure 3 and Figure 6 , a driving motor 1022 is provided at the end of the operating frame 1 for driving the lateral adjustment screw rod 102 to rotate, a spur gear 103 is provided at the bottom of the outer side of the operating frame 1 connected to the end of the transmission shaft 106, and a spur gear 2 104 is provided on the operating frame 1 for transmission engagement with the spur gear 103 and the tooth groove 21 respectively. When it is necessary to adjust the cutting position on the guide rail body 400, the lateral adjustment screw rod 102 can be driven to rotate by the driving motor 1022, so that the reciprocating transverse movement seat 1021 can move left and right on the lateral adjustment screw rod 102, and the rotation of the transmission shaft 106 will be transmitted to the swivel 2 through the spur gear 103 and the spur gear 2 104, so that the swivel 2 can rotate, and the rotation direction of the swivel 2 is as follows Figure 2 As shown, the clockwise rotation is adopted to allow it to clamp the guide rail body 400 from the conveyor frame 3001 and perform a cyclic cutting process of loading, waiting, cutting, and unloading to improve the efficiency of the cutting process.

[0042] Example 2: Reference Figure 1-9 The difference between this embodiment and embodiment 1 is that a rotation limit frame 3 is provided at both ends of the inner side of the operating frame 1, and a rotation groove 301 and a limit groove 302 are respectively opened on the rotation limit frame 3. The rotation limit frame 3 is provided with a positive arc rack 31 and a reverse arc rack 32 located at the corresponding positions of the two rotation grooves 301. The internal space of the rotation groove 301 is larger than the internal space of the limit groove 302. The setting positions of the positive arc rack 31 and the reverse arc rack 32 correspond to the positions of the rotation groove 301. The number of rotation grooves 301 is two, and the number of limit grooves 302 is two, which are arranged on opposite surfaces.

[0043] Specifically, refer to Figure 3 、 Figure 7 and Figure 9The feeding mechanism 6 is matched with the rotating limit frame 3 for rotation and sliding. The feeding mechanism 6 includes a fixed plate 601 connected to the swivel 2. There are four feeding mechanisms 6, and the number of settings corresponds to the loading, waiting, cutting and unloading processing when the device is used.

[0044] Specifically, refer to Figure 7 and Figure 9 A lower clamping plate 602 is provided on one side of the bottom surface of the fixed plate 601, an adjusting screw 603 is rotatably provided on the top surface of the fixed plate 601, a top plate 604 is threadedly mounted on the adjusting screw 603, a slide plate 605 is provided on the bottom surface of the top plate 604 and is movably mounted on the top surface of the fixed plate 601, and an upper clamping plate 606 is provided at the bottom end of the slide plate 605 for cooperating with the lower clamping plate 602 to clamp the guide rail body 400.

[0045] Specifically, refer to Figure 7 and Figure 9 , the top of the adjusting screw 603 is provided with an adjusting gear 607 that meshes with the forward arc rack 31 and the reverse arc rack 32 respectively, and the top surface of the adjusting gear 607 is provided with a limit block 608 that can rotate in the rotating groove 301. In the loading stage, the guide rail body 400 is inside the conveying frame 3001 and is directly below the rotating ring 2. Then the rotation of the rotating ring 2 will drive the loading mechanism 6 to move, so that the lower clamping plate 602 is inserted into the bottom surface of the guide rail body 400, and then the conveying frame 3001 will be synchronously The rotation of the swivel 2 moves toward one end of the upper material guard plate 100. At this time, the limit block 608 enters the interior of the rotation groove 301, so that the limit block 608 does not limit the rotation of the adjustment gear 607, and the adjustment gear 607 is meshed with the positive arc rack 31, so that the top plate 604 drives the upper clamping plate 606 to move downward through the slide 605, so that the upper clamping plate 606 cooperates with the lower clamping plate 602 to clamp the guide rail body 400. As the conveyor frame 3001 moves, the guide rail body 400 The guide rail body 400 is then pulled out from the inside of the conveyor frame 3001, and the limit block 608 enters the limit groove 302, so that its rotation is restricted, and the meshing match between the adjustment gear 607 and the positive arc-shaped rack 31 is completed, so that the position of the upper clamping plate 606 does not change, and then the feeding mechanism 6 clamps the guide rail body 400 to the waiting position. After the previous cutting process is completed, the rotating ring 2 will continue to rotate clockwise, so that the guide rail body 400 in the waiting position can enter the cutting position, and the cutting After cutting, the guide rail body 400 will be brought to the unloading position by the loading mechanism 6. At this time, the limit block 608 will enter the rotating groove 301, so that the adjusting gear 607 can engage and match with the reverse arc rack 32, thereby allowing the loading mechanism 6 to release the guide rail body 400 and allow the guide rail body 400 to roll down and be collected by the unloading guard plate 200. As the rotating ring 2 continues to rotate, the limit block 608 will enter the limit groove 302 again and wait for the next time to enter the rotating groove 301 to complete the next loading operation.

[0046] For other structures not described, refer to Example 1.

[0047] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A steel cutting device for processing elevator guide rails, comprising an operating frame (1), characterized in that: The lower left side and upper right side of the operating frame (1) are respectively provided with a loading guard plate (100) and a unloading guard plate (200); the bottom of the operating frame (1) is provided with a conveying chain (300); the conveying chain (300) is provided with a conveying frame (3001); the conveying frame (3001) is provided with a heightening pad (3002); the heightening pad (3002) carries a guide rail body (400); the operating frame (1) is provided with a sliding frame (101) and a transverse adjustment screw rod (102); the transverse adjustment screw rod (102) is rotatably mounted on the operating frame (1); the sliding frame (101) is slidably mounted with the transverse adjustment screw rod (102) ) a reciprocating transverse seat (1021) threadedly mounted, a sawing device (5) for cutting the guide rail body (400) being slidably mounted on the reciprocating transverse seat (1021), a transverse frame (105) and a transmission shaft (106) being provided at the inner bottom of the operating frame (1), the transmission shaft (106) being rotatably mounted on the operating frame (1), a synchronous six-sided groove (1061) being provided in the middle section of the transmission shaft (106), a bidirectional transmission mechanism (7) being slidably mounted on the transverse frame (105), a rotating ring (2) being rotatably mounted at both ends of the operating frame (1), and a feeding mechanism (6) for clamping the guide rail body (400) being provided on the rotating ring (2); Both ends of the inner side of the operating frame (1) are provided with a rotation limit frame (3), and the rotation limit frame (3) is respectively provided with a rotation groove (301) and a limit groove (302), and the rotation limit frame (3) is provided with a forward arc-shaped rack (31) and a reverse arc-shaped rack (32) located at positions corresponding to the two rotation grooves (301); The feeding mechanism (6) is rotationally and slidingly matched with the rotating limit frame (3), and the feeding mechanism (6) includes a fixed plate (601) connected to the rotating ring (2); A lower clamping plate (602) is provided on one side of the bottom surface of the fixed plate (601); an adjusting screw (603) is rotatably provided on the top surface of the fixed plate (601); a top plate (604) is threadedly sleeved on the adjusting screw (603); a slide plate (605) is provided on the bottom surface of the top plate (604) and is movably sleeved with the top surface of the fixed plate (601); an upper clamping plate (606) is provided at the bottom end of the slide plate (605) and is cooperated with the lower clamping plate (602) to clamp the guide rail body (400); The top end of the adjusting screw (603) is provided with an adjusting gear (607) that is individually engaged with the forward arc-shaped rack (31) and the reverse arc-shaped rack (32). The top surface of the adjusting gear (607) is provided with a limit block (608) that can rotate in the rotation groove (301).

2. The steel cutting device for elevator guide rail processing according to claim 1, characterized in that: The bidirectional transmission mechanism (7) comprises a mounting frame (701) that is slidably mounted on the transverse frame (105); a driving bevel gear (7011) is rotatably mounted on the inner side surface of the mounting frame (701); a driven bevel gear (7014) that meshes with the driving bevel gear (7011) is rotatably mounted on the inner top surface of the mounting frame (701); a ratchet pawl disc (702) is mounted on the top end of the driven bevel gear (7014); and a reciprocating screw rod (703) that is threadably mounted on the bottom frame (51) is mounted on the top end of the ratchet pawl disc (702).

3. The steel cutting device for elevator guide rail processing according to claim 2, characterized in that: The bottom surface of the inner side of the installation frame (701) is rotatably provided with a driven bevel gear (7013) that meshes and matches with the driving bevel gear (7011), and the outer side surface of the installation frame (701) is provided with a driving motor (7012) that drives the driving bevel gear (7011) to rotate.

4. The steel cutting device for elevator guide rail processing according to claim 3, characterized in that: The bottom of the driven bevel gear 1 (7013) is connected to the ratchet pawl disc 2 (704) located at the lower part of the bottom surface of the installation frame (701), and the bottom end of the ratchet pawl disc 2 (704) is provided with a transmission bevel gear (705).

5. The steel cutting device for elevator guide rail processing according to claim 4, characterized in that: A synchronization plate (7015) is provided on the side of the bottom surface of the installation frame (701) so as not to affect the rotation of the synchronization six-sided groove (1061). A synchronization bevel gear (7016) is provided on the synchronization plate (7015) so as to be rotatable and slideably fitted with the synchronization six-sided groove (1061). The teeth of the synchronization bevel gear (7016) mesh with the teeth of the transmission bevel gear (705).

6. The steel cutting device for elevator guide rail processing according to claim 1, characterized in that: The end of the operating frame (1) is provided with a driving motor 1 (1022) for driving the lateral adjustment screw rod (102) to rotate, the bottom of the outer side surface of the operating frame (1) is provided with a spur gear 1 (103) connected to the end of the transmission shaft (106), and the operating frame (1) is provided with a spur gear 2 (104) for transmission meshing matching with the spur gear 1 (103) and the tooth groove (21) respectively.

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