Elevator guide shoe welding positioning equipment

Abstract

The invention belongs to the technical field of elevator guide shoe welding, and particularly relates to elevator guide shoe welding positioning equipment which comprises a bottom plate, a supporting plate is fixedly connected to the upper surface of the bottom plate, and a round hole is formed in the outer wall of the supporting plate. According to the welding and positioning equipment for the elevator guide shoe, firstly, through the plate-shaped positioning groove and the support positioning mechanism, quick and accurate positioning of elevator guide shoe parts is achieved, manual measuring and scribing are not needed, the positioning efficiency is improved, the labor intensity is reduced, and the positioning precision is guaranteed; meanwhile, the welding position of the elevator guide shoe can be flexibly adjusted by means of the driving mechanism, operation is facilitated, molten metal can fully flow into a welding seam, welding firmness and quality are effectively enhanced, in addition, welding smoke is treated through the environment-friendly mechanism, the environment-friendly performance can be improved, and personnel health can be guaranteed; and the welding seam timely preheating mechanism can reduce welding defects, so that the welding quality and the safety of subsequent use of the elevator are further ensured.

Description

Technical Field

[0001] This invention belongs to the field of elevator guide shoe welding technology, and in particular relates to an elevator guide shoe welding positioning device. Background Technology

[0002] Elevator guide shoes are guiding devices installed on both sides of the car and counterweight, in contact with the guide rails. They limit the lateral sway of the car and counterweight, ensuring their smooth operation along the guide rails. They are key components for ensuring elevator safety and comfort. According to their structure, they can be divided into sliding guide shoes and roller guide shoes.

[0003] The elevator roller guide shoe uses polyurethane or rubber rollers to roll in contact with the guide rail, reducing friction and noise. The roller bracket and the base plate are welded together. Since the bracket needs to withstand the lateral impact force when the car is running, welding can form a rigid whole, avoiding the risk of loosening of bolted connections under long-term vibration, ensuring the verticality of the bracket and the parallelism between the roller and the guide rail, ensuring stable guidance, and at the same time improving the structural strength to cope with the load changes of frequent start and stop.

[0004] Currently, the welding process between the roller bracket and the base plate of the elevator guide shoe involves several steps. First, workers need to measure the base plate to determine the welding position between the roller bracket and the base plate. Then, they need to mark the positioning on the base plate and place the roller bracket on it. At the same time, appropriate fixtures are used to ensure the stability between the roller bracket and the base plate. Finally, workers use welding equipment to weld and fix the roller bracket to the base plate. However, this welding and positioning process for elevator guide shoe components is not only cumbersome and inconvenient, affecting the efficiency of welding and positioning, but also has a large error due to manual measurement, which affects the accuracy of welding and positioning of elevator guide shoe components and even the reliability of subsequent use of elevator guide shoes.

[0005] Furthermore, when welding the roller bracket and base plate after positioning, the lack of timely weld preheating can easily lead to cold cracking, incomplete fusion, and welding deformation in the weld. This is because the roller bracket and base plate are mostly made of low-alloy structural steel (such as Q355). During welding, the rapid cooling of the bevel area will form a hardened structure. After the superposition of thermal stress and restraint stress, cold cracking is likely to occur. At the same time, the molten pool has poor fluidity at low temperatures, which can easily lead to incomplete fusion defects, resulting in a decrease in the load-bearing capacity of the weld. In addition, the uneven temperature field can cause deformation after welding, which can damage the parallelism between the roller bracket and the guide rail. Ultimately, this can cause abnormal noise and increased vibration during elevator operation, and even affect the safety of operation.

[0006] To address this issue, we propose an elevator guide shoe welding and positioning device. Summary of the Invention

[0007] The purpose of this invention is to address the above-mentioned problems by providing an elevator guide shoe welding and positioning device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an elevator guide shoe welding and positioning device, comprising a base plate, a support plate fixedly connected to the upper surface of the base plate, a circular hole opened on the outer wall of the support plate, and a rolling bearing fixedly connected to the wall of the circular hole, and a connecting pipe fixedly connected to the inner wall of the rolling bearing;

[0009] An L-shaped positioning plate is fixedly connected to the side end of the connecting pipe. A plate-shaped positioning groove is opened on the outer wall of the vertical part of the L-shaped positioning plate. A bracket positioning mechanism is fixedly connected to the upper surface of the horizontal part of the L-shaped positioning plate.

[0010] A drive mechanism is fixedly connected to the outer wall of the support plate;

[0011] Two L-shaped fixing plates are fixedly connected to the lower surface of the base plate, and an environmental protection mechanism is fixedly connected to the lower surface of the base plate.

[0012] The top of the environmental protection mechanism is provided with a fixing hole, and the wall of the fixing hole is fixedly connected to a welded preheating mechanism.

[0013] The upper surface of the base plate is provided with a rectangular air inlet hole that matches the air inlet end of the environmental protection mechanism, and the upper surface of the base plate is also provided with a through hole that matches the timely preheating mechanism for the weld.

[0014] In the aforementioned elevator guide shoe welding and positioning device, the bracket positioning mechanism includes a first electric push rod fixedly connected to the upper surface of the horizontal part of the L-shaped positioning plate. A pressure plate is fixedly connected to the top of the moving part of the first electric push rod. An L-shaped fixing block is fixedly sleeved on the outer wall of the fixing part of the first electric push rod. A positioning frame is fixedly connected to the upper surface of the L-shaped fixing block. A second electric push rod is fixedly embedded at the bottom end of the L-shaped fixing block. A connecting block is fixedly connected to the moving end of the second electric push rod. A U-shaped secondary bracket pressure block is fixedly connected to the connecting hole of the connecting block by bolts.

[0015] In the above-mentioned elevator guide shoe welding and positioning equipment, a U-shaped anti-slip rubber block is fixed to the inner wall of the U-shaped auxiliary support pressure block, and positioning side blocks are fixedly connected to both outer walls of the pressure plate. A touch switch is fixedly connected to the lower surface of one of the positioning side blocks, and the button end of the touch switch is located directly above the positioning frame.

[0016] In the above-mentioned elevator guide shoe welding and positioning equipment, a support rod is fixedly connected to the upper surface of the horizontal part of the L-shaped positioning plate, and a rubber pressure sleeve that cooperates with the plate-shaped positioning groove is fixedly sleeved on the rod wall of the support rod.

[0017] In the above-mentioned elevator guide shoe welding and positioning equipment, the driving mechanism includes a small servo motor fixedly connected to the upper surface of the support plate. The output end of the small servo motor passes through the reserved hole of the support plate and is fixedly connected to a gear. The outer wall of the connecting pipe is fixedly sleeved with an external gear ring that meshes with the outer wall of the gear.

[0018] In the aforementioned elevator guide shoe welding and positioning equipment, the environmental protection mechanism includes a dust collection box fixedly connected to the lower surface of the base plate. A partition is fixedly connected to the inner wall of the dust collection box, and a filter screen is fixedly embedded on the surface of the partition. A composite filter element is movably sleeved on the outer wall of the filter screen. A threaded hole is opened on the outer wall of the dust collection box, and a connecting cover is threadedly sealed to the hole wall. The inner wall of the connecting cover is fixedly connected to the outer wall of the side end of the composite filter element. The side wall of the composite filter element is in sealed contact with the outer wall of the partition. A miniature suction pump is fixedly connected to the inner wall of the dust collection box, and an exhaust pipe is fixedly connected to the output end of the miniature suction pump. A filter screen is fixedly connected to the air inlet of the dust collection box, and the filter screen is located inside the rectangular air inlet.

[0019] In the elevator guide shoe welding and positioning device described above, a U-shaped handle is fixedly connected to the outer wall of the connecting cover, and a through hole is provided on the outer wall of one of the L-shaped fixing plates to cooperate with the connecting cover.

[0020] In the above-mentioned elevator guide shoe welding and positioning equipment, the timely preheating mechanism for the weld seam includes a heat insulation cylinder fixedly embedded in the dust collection box, an electric heating coil fixedly embedded at the top of the heat insulation cylinder, the output end of the exhaust pipe fixedly connected to the bottom end of the heat insulation cylinder, an L-shaped rigid pipe fixedly connected to the top of the heat insulation cylinder, a temperature sensor fixedly connected to the wall of the L-shaped rigid pipe, and a universal air jet nozzle fixedly connected to the output end of the L-shaped rigid pipe.

[0021] In the above-mentioned elevator guide shoe welding and positioning equipment, a PLC controller is fixedly connected to the outer wall of the L-shaped fixing plate, a touch control screen is fixedly connected to the outer wall of the PLC controller, a conductive slip ring is fixedly connected to the inner wall of the connecting pipe, and a wire slot is opened on the side end of the connecting pipe near the L-shaped positioning plate.

[0022] Compared with existing technologies, the advantages of an elevator guide shoe welding and positioning device are:

[0023] 1. Through the set plate-shaped positioning groove and bracket positioning mechanism, when the roller bracket in the elevator roller guide shoe needs to be welded and positioned with the base plate, the base plate is first placed in the plate-shaped positioning groove of the L-shaped positioning plate. At this time, the rubber sleeve on the support rod contacts the outer side of the base plate and squeezes and limits the base plate. Then, the roller bracket is placed on the L-shaped fixing block, and the side end of the roller bracket is positioned in the positioning frame and limited by the bracket positioning mechanism to ensure that the positioning state does not change. If the side end of the roller bracket also needs to be welded with a reinforcing rib plate or a secondary bracket, the reinforcing rib plate or secondary bracket can be placed in the U-shaped anti-slip rubber block. Then, the positioning is achieved by moving the second electric push rod and the U-shaped secondary bracket pressure block. This equipment can quickly and conveniently complete the positioning work before welding elevator guide shoe parts. The entire process does not require staff to measure and mark the positioning, which not only improves the efficiency of welding positioning and reduces the labor intensity of staff, but also improves the accuracy of welding positioning, thereby ensuring the reliability of elevator guide shoe in subsequent use.

[0024] 2. Through the set drive mechanism, when the staff welds the positioned elevator guide shoe with the welding equipment, the staff can also control the small servo motor through the touch control screen and PLC controller. The drive end of the small servo motor drives the L-shaped positioning plate to rotate slowly through gears, external gear rings and connecting pipes. The rotation of the L-shaped positioning plate can rotate the elevator guide shoe welding position located on the lower side to the upper side. This not only facilitates the staff's welding operation, but also allows the molten metal generated by welding to flow fully into the depth of the weld under the action of gravity, improving the strength and quality of the weld.

[0025] 3. Through the environmental protection mechanism, while the pressure plate limits the roller bracket, the touch switch below the positioning side block is pressed by the positioning frame to send an electrical signal to the PLC controller. The PLC controller controls the micro air pump in the environmental protection mechanism to work according to the received electrical signal. Then, the environmental protection mechanism draws in outside air through the filter screen and rectangular air inlet. When the outside air is drawn in, it carries the welding fumes. The fumes are purified when they pass through the composite filter cartridge. The composite filter cartridge can trap small particulate matter in the fumes, preventing untreated fumes from spreading and polluting the working environment. This mechanism enables the elevator guide shoe welding positioning equipment to have welding fume treatment function, improves the environmental performance of the equipment, and protects the health of the workers.

[0026] 4. Through the designed weld preheating mechanism, during the elevator guide shoe welding process, the preheating temperature range of the weld can be preset to the PLC controller via the touch control screen, based on the material characteristics of the roller bracket and base plate. After the touch switch sends an electrical signal to the PLC controller, the PLC controller not only controls the operation of the micro air pump but also the operation of the electric heating coil in the weld preheating mechanism. The air discharged by the micro air pump is heated at the weld preheating mechanism, ensuring that the air temperature meets the preset weld preheating temperature range. The heated air is then sprayed through the L-shaped rigid pipe and universal nozzle towards... The weld seam of the elevator guide shoe is preheated. The weld seam rotates with the elevator guide shoe to the welding head of the welding equipment. After preheating, the cooling rate of the weld molten metal is slowed down, avoiding the formation of hardened structures in the weld bevel area, releasing thermal stress in the weld area, and thus preventing cold cracking defects. At the same time, preheating can improve the fluidity of the weld pool, enhance the load-bearing capacity of the weld, and the uniform temperature field can reduce the deformation of the weld after welding, ensure the parallelism between the roller bracket and the guide rail, improve the quality of elevator guide shoe welding, and ensure the safety of subsequent elevator use. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an elevator guide shoe welding and positioning device provided by the present invention;

[0028] Figure 2 This is a partially enlarged structural schematic diagram of the bracket positioning mechanism in an elevator guide shoe welding and positioning device provided by the present invention;

[0029] Figure 3 This is a schematic diagram of the L-shaped positioning plate portion in an elevator guide shoe welding and positioning device provided by the present invention;

[0030] Figure 4 This is a schematic diagram of the connecting pipe portion in an elevator guide shoe welding and positioning device provided by the present invention;

[0031] Figure 5 This is a schematic diagram of the drive mechanism in an elevator guide shoe welding and positioning device provided by the present invention;

[0032] Figure 6 This is a schematic diagram of the positioning frame portion in an elevator guide shoe welding and positioning device provided by the present invention;

[0033] Figure 7 This is a schematic diagram of the environmental protection mechanism in an elevator guide shoe welding and positioning device provided by the present invention;

[0034] Figure 8 This is a schematic diagram of the weld preheating mechanism in an elevator guide shoe welding positioning device provided by the present invention.

[0035] In the diagram: 1. Base plate, 2. Support plate, 3. Rolling bearing, 4. Bracket positioning mechanism, 41. First electric push rod, 42. Pressure plate, 43. L-shaped fixing block, 44. Positioning frame, 45. Second electric push rod, 46. Connecting block, 47. U-shaped auxiliary bracket pressure block, 5. Drive mechanism, 51. Small servo motor, 52. Gear, 53. External gear ring, 6. Environmental protection mechanism, 61. Dust collection box, 62. Partition plate, 63. Filter screen cylinder, 64. Composite filter element cylinder, 65. Connecting cover, 66. Miniature suction pump, 67. Exhaust pipe, 68. Filter 7. Mesh sheet, 7. Weld seam preheating mechanism, 71. Heat insulation cylinder, 72. Electric heating coil, 73. L-shaped rigid pipe, 74. Temperature sensor, 75. Universal jet nozzle, 8. Rectangular air inlet, 9. U-shaped handle, 10. Connecting pipe, 11. L-shaped positioning plate, 12. Plate-shaped positioning groove, 13. L-shaped fixing plate, 14. U-shaped anti-slip rubber block, 15. Positioning side block, 16. Touch switch, 17. Support rod, 18. Rubber sleeve, 19. PLC controller, 20. Touch control screen, 21. Conductive slip ring, 22. Wire slotting. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figures 1-8 As shown, an elevator guide shoe welding and positioning device includes a base plate 1. A support plate 2 is fixedly connected to the upper surface of the base plate 1. A circular hole is opened on the outer wall of the support plate 2, and a rolling bearing 3 is fixedly connected to the wall of the circular hole. A connecting pipe 10 is fixedly connected to the inner wall of the rolling bearing 3. An L-shaped positioning plate 11 is fixedly connected to the side end of the connecting pipe 10. A plate-shaped positioning groove 12 is opened on the outer wall of the vertical part of the L-shaped positioning plate 11. The shape of the plate-shaped positioning groove 12 is consistent with the shape of the base plate of the roller guide shoe, thereby ensuring that the base plate is stably positioned during welding. A support rod 17 is fixedly connected to the upper surface of the horizontal part of the L-shaped positioning plate 11. A rubber sleeve 18 that cooperates with the plate-shaped positioning groove 12 is fixedly sleeved on the wall of the support rod 17.

[0038] A bracket positioning mechanism 4 is fixedly connected to the upper horizontal surface of the L-shaped positioning plate 11. The bracket positioning mechanism 4 includes a first electric push rod 41 fixedly connected to the upper horizontal surface of the L-shaped positioning plate 11. A pressure plate 42 is fixedly connected to the top of the moving part of the first electric push rod 41. An L-shaped fixing block 43 is fixedly sleeved on the outer wall of the fixing part of the first electric push rod 41. A positioning frame 44 is fixedly connected to the upper surface of the L-shaped fixing block 43. A second electric push rod 45 is fixedly embedded at the bottom end of the L-shaped fixing block 43. A connecting block 46 is fixedly connected to the moving end of the second electric push rod 45. A U-shaped secondary bracket pressure block 47 is fixedly connected to the connecting hole of the connecting block 46 by bolts. A U-shaped anti-slip rubber block 14 is fixed to the inner wall of the U-shaped secondary bracket pressure block 47. Positioning side blocks 15 are fixedly connected to both outer walls of the pressure plate 42. A touch switch 16 is fixedly connected to the lower surface of one of the positioning side blocks 15. The button end of the touch switch 16 is located directly above the positioning frame 44. This mechanism can achieve rapid welding positioning.

[0039] A drive mechanism 5 is fixedly connected to the outer wall of the support plate 2. The drive mechanism 5 includes a small servo motor 51 fixedly connected to the upper surface of the support plate 2. The output end of the small servo motor 51 passes through the reserved hole of the support plate 2 and is fixedly connected to a gear 52. An external gear ring 53 that meshes with the outer wall of the gear 52 is fixedly sleeved on the outer wall of the connecting pipe 10. The gear ratio between the gear 52 and the external gear ring 53 is 1:1. The matching gear ratio ensures smooth transmission, thereby ensuring that the rotation speed of the drive mechanism 5 driving the connecting pipe 10 is synchronized with the output speed of the small servo motor 51.

[0040] Two L-shaped fixing plates 13 are fixedly connected to the lower surface of the base plate 1. An environmental protection mechanism 6 is fixedly connected to the lower surface of the base plate 1. The environmental protection mechanism 6 includes a dust collection box 61 fixedly connected to the lower surface of the base plate 1. A partition 62 is fixedly connected to the inner wall of the dust collection box 61. A filter screen cylinder 63 is fixedly embedded on the surface of the partition 62. A composite filter element cylinder 64 is movably sleeved on the outer wall of the filter screen cylinder 63. A threaded hole is opened on the outer wall of the dust collection box 61, and a connecting cover 65 is threadedly sealed to the hole wall. The inner wall of the connecting cover 65 is fixedly connected to the outer wall of the side end of the composite filter element cylinder 64. The side wall of the composite filter element cylinder 64 is in sealed contact with the outer wall of the partition 62. A micro suction pump 66 is fixedly connected to the inner wall of the dust collection box 61. An exhaust pipe 67 is fixedly connected to the output end of the micro suction pump 66. A filter screen 68 is fixedly connected to the air inlet of the dust collection box 61. The filter screen 68 is located inside the rectangular air inlet 8.

[0041] The top of the environmental protection mechanism 6 is provided with a fixing hole, and the wall of the fixing hole is fixedly connected to a weld seam timely preheating mechanism 7. The weld seam timely preheating mechanism 7 includes a heat insulation cylinder 71 fixedly embedded in the dust collection box 61. An electric heating coil 72 is fixedly embedded in the top of the heat insulation cylinder 71. The output end of the exhaust pipe 67 is fixedly connected to the bottom end of the heat insulation cylinder 71. An L-shaped rigid pipe 73 is fixedly connected to the top of the heat insulation cylinder 71. A temperature sensor 74 is fixedly connected to the wall of the L-shaped rigid pipe 73. A universal jet nozzle 75 is fixedly connected to the output end of the L-shaped rigid pipe 73.

[0042] The upper surface of the base plate 1 is provided with a rectangular air inlet hole 8 that matches the air inlet end of the environmental protection mechanism 6. The upper surface of the base plate 1 is also provided with a through hole that matches the timely preheating mechanism 7 for welds.

[0043] A U-shaped handle 9 is fixedly connected to the outer wall of the connecting cover 65. One of the L-shaped fixing plates 13 has a through hole on its outer wall that matches the connecting cover 65. A PLC controller 19 is fixedly connected to the outer wall of the other L-shaped fixing plate 13. A touch control screen 20 is fixedly connected to the outer wall of the PLC controller 19. A conductive slip ring 21 is fixedly connected to the inner wall of the connecting tube 10. A wire slot 22 is opened on the side of the connecting tube 10 near the L-shaped positioning plate 11. The touch control screen 20, the touch switch 16, and the temperature sensor 74 are all electrically connected to the input terminal of the PLC controller 19 through wires. The micro air pump 66, the first electric push rod 41, the second electric push rod 45, the small servo motor 51, and the electric heating coil 72 are all electrically connected to the output terminal of the PLC controller 19 through wires. The conductive slip ring 21 enables the first electric push rod 41 and the second electric push rod 45 to continue to work normally in the rotating state. The above-mentioned electrical equipment and electrical connection relationships are all existing technologies and will not be described in detail here.

[0044] The operating principle of the present invention is described as follows: When the roller bracket in the elevator roller guide shoe needs to be welded and positioned with the base plate, the base plate is first placed into the plate-shaped positioning groove 12 of the L-shaped positioning plate 11. At this time, the rubber sleeve 18 on the support rod 17 contacts the outer side of the base plate and squeezes and limits the base plate. Since the shape of the plate-shaped positioning groove 12 matches the base plate, it can meet the precise positioning requirements of the base plate. Then, the roller bracket is placed on the L-shaped fixing block 43, and the side end of the roller bracket is positioned in the positioning frame 44. The inner wall shape of the positioning frame 44 matches the roller. The side shapes of the brackets are consistent, which can achieve precise positioning of the roller bracket. At the same time, the end of the roller bracket away from the positioning frame 44 is precisely attached to the base plate, and the welding position is also precisely positioned. Then, the staff controls the first electric push rod 41 to work through the touch control screen 20. The moving part of the first electric push rod 41 retracts, and the moving end of the first electric push rod 41 drives the pressure plate 42 to move down, limiting the roller bracket. At the same time, the positioning side blocks 15 on both sides of the pressure plate 42 are placed on both sides of the roller bracket to further constrain the roller bracket, ensure that the positioning state does not change, and ensure the stability of the positioning.

[0045] If the side end of the roller bracket needs to be welded with a reinforcing rib or a secondary bracket, the reinforcing rib or secondary bracket can be placed inside the U-shaped anti-slip rubber block 14. Then, the second electric push rod 45 is controlled by the touch control screen 20: the moving end of the second electric push rod 45 extends outward, pushes the U-shaped secondary bracket pressure block 47 to move through the connecting block 46, and pushes the reinforcing rib or secondary bracket to fit the base plate to complete the positioning. This equipment can quickly and conveniently complete the positioning work before welding elevator guide shoe components. The entire process does not require staff to measure and mark the positioning, which not only improves the efficiency of welding positioning and reduces the labor intensity of staff, but also improves the accuracy of welding positioning, thereby ensuring the reliability of elevator guide shoe in subsequent use.

[0046] Next, the staff welded the positioned elevator guide shoes using welding equipment to ensure reliable welding quality between the roller bracket and the base plate. During the elevator guide shoe welding process, the staff can also control the small servo motor 51 through the touch control screen 20 and PLC controller 19. The drive end of the small servo motor 51 rotates slowly, which drives the connecting pipe 10 to rotate slowly through the gear 52 and external gear ring 53. The connecting pipe 10 then drives the L-shaped positioning plate 11 to rotate slowly. The rotation of the L-shaped positioning plate 11 can rotate the elevator guide shoe welding position located on the lower side to the upper side. This not only facilitates the welding operation of the staff, but also allows the molten metal generated during welding to flow fully into the depth of the weld under the action of gravity, improving the strength and quality of the weld.

[0047] While the pressure plate 42 limits the roller bracket, the touch switch 16 below the positioning side block 15 contacts the positioning frame 44. The positioning frame 44 presses the active button of the touch switch 16, making the circuit of the touch switch 16 conduct and sending an electrical signal to the PLC controller 19. The PLC controller 19 controls the micro suction pump 66 to work according to the received electrical signal. The air inlet of the micro suction pump 66 draws air from the inside of the dust collection box 61 through the filter screen 63 and the composite filter element 64, so that the inside of the dust collection box 61 forms a negative pressure environment. Then, the negative pressure dust collection box 61 draws in outside air through the filter screen 68 and the rectangular air inlet 8 to maintain air pressure balance. When the outside air is drawn in, it carries the welding fume. The fume is purified when it passes through the composite filter element 64. The composite filter element 64 can trap small particulate matter in the fume, preventing untreated fume from spreading and polluting the working environment. This mechanism enables the elevator guide shoe welding positioning equipment to have welding fume treatment function, improves the environmental performance of the equipment, and protects the health of the workers.

[0048] During the elevator guide shoe welding process, the preheating temperature range (e.g., 150℃-160℃) of the weld can be preset to the PLC controller 19 via the touch control screen 20 according to the material characteristics of the roller bracket and the base plate. After the touch switch 16 sends an electrical signal to the PLC controller 19, the PLC controller 19 not only controls the operation of the micro air pump 66, but also controls the operation of the electric heating coil 72. The air sucked in by the micro air pump 66 is discharged into the heat insulation cylinder 71 through the exhaust pipe 67, and heated by the electric heating coil 72 inside the heat insulation cylinder 71. The heated air is sprayed onto the weld position of the elevator guide shoe to be welded through the L-shaped rigid pipe 73 and the universal air nozzle 75 for preheating. The temperature of the hot air is detected by the temperature sensor 74 inside the L-shaped rigid pipe 73. The temperature sensor 74 converts the detected temperature into an electrical signal and sends it to the PLC controller 19. If the detected temperature is higher than the preset range, the PLC controller 19 reduces the heating power of the electric heating coil 72 to prevent overheating. If the air temperature is too high and energy consumption is reduced, and the detected temperature is lower than the preset range, the PLC controller 19 will increase the power of the electric heating coil 72 to ensure that the temperature of the hot air inside the L-shaped rigid tube 73 meets the requirements. Then, the hot air ejected from the universal jet nozzle 75 can preheat the weld position in time. The weld moves with the rotating elevator guide shoe to the welding head of the welding equipment, so that the preheated weld can be welded immediately. After the elevator guide shoe weld is preheated, the cooling rate of the welding molten metal can be slowed down, avoiding the formation of hardened structure in the weld bevel area, releasing the thermal stress in the weld area, and thus preventing cold cracking defects in the weld. At the same time, preheating can improve the fluidity of the weld pool, avoid incomplete fusion defects, improve the load-bearing capacity of the weld, and the uniform temperature field can reduce the deformation of the weld after welding, ensure the parallelism of the roller bracket and the guide rail, avoid abnormal noise and large vibration during the use of the elevator guide shoe, improve the quality of elevator guide shoe welding, and ensure the safety of subsequent elevator use.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An elevator guide shoe welding and positioning device, comprising a base plate (1), characterized in that, A support plate (2) is fixedly connected to the upper surface of the base plate (1). A circular hole is opened on the outer wall of the support plate (2), and a rolling bearing (3) is fixedly connected to the wall of the circular hole. A connecting pipe (10) is fixedly connected to the inner wall of the rolling bearing (3). The side end of the connecting pipe (10) is fixedly connected to an L-shaped positioning plate (11), and the vertical part of the L-shaped positioning plate (11) is provided with a plate-shaped positioning groove (12). The upper surface of the horizontal part of the L-shaped positioning plate (11) is fixedly connected to a bracket positioning mechanism (4). The outer wall of the support plate (2) is fixedly connected to a drive mechanism (5); Two L-shaped fixing plates (13) are fixedly connected to the lower surface of the base plate (1), and an environmental protection mechanism (6) is fixedly connected to the lower surface of the base plate (1). The top of the environmental protection mechanism (6) is provided with a fixing hole, and the wall of the fixing hole is fixedly connected with a welded seam preheating mechanism (7). The upper surface of the base plate (1) is provided with a rectangular air inlet hole (8) that matches the air inlet end of the environmental protection mechanism (6), and the upper surface of the base plate (1) is also provided with a through hole that matches the timely preheating mechanism (7) for welds.

2. The elevator guide shoe welding and positioning equipment according to claim 1, characterized in that, The bracket positioning mechanism (4) includes a first electric push rod (41) fixedly connected to the upper surface of the horizontal part of the L-shaped positioning plate (11). A pressure plate (42) is fixedly connected to the top of the moving part of the first electric push rod (41). An L-shaped fixing block (43) is fixedly sleeved on the outer wall of the fixing part of the first electric push rod (41). A positioning frame (44) is fixedly connected to the upper surface of the L-shaped fixing block (43). A second electric push rod (45) is fixedly embedded at the bottom end of the L-shaped fixing block (43). A connecting block (46) is fixedly connected to the moving end of the second electric push rod (45). A U-shaped auxiliary bracket pressure block (47) is fixedly connected to the connecting hole of the connecting block (46) by bolts.

3. The elevator guide shoe welding and positioning equipment according to claim 2, characterized in that, The inner wall of the U-shaped sub-support pressure block (47) is fixed with a U-shaped anti-slip rubber block (14), and the outer walls of both sides of the pressure plate (42) are fixedly connected with positioning side blocks (15). A touch switch (16) is fixedly connected to the lower surface of one of the positioning side blocks (15), and the button end of the touch switch (16) is located directly above the positioning frame (44).

4. The elevator guide shoe welding and positioning device according to claim 1, characterized in that, A support rod (17) is fixedly connected to the upper surface of the horizontal part of the L-shaped positioning plate (11), and a rubber sleeve (18) that cooperates with the plate-shaped positioning groove (12) is fixedly sleeved on the wall of the support rod (17).

5. The elevator guide shoe welding and positioning device according to claim 1, characterized in that, The drive mechanism (5) includes a small servo motor (51) fixedly connected to the upper surface of the support plate (2). The output end of the small servo motor (51) passes through the reserved hole of the support plate (2) and is fixedly connected to a gear (52). The outer wall of the connecting pipe (10) is fixedly sleeved with an external gear ring (53) that meshes with the outer wall of the gear (52).

6. The elevator guide shoe welding and positioning device according to claim 1, characterized in that, The environmental protection mechanism (6) includes a dust collection box (61) fixedly connected to the lower surface of the base plate (1). A partition (62) is fixedly connected to the inner wall of the dust collection box (61). A filter screen cylinder (63) is fixedly embedded on the surface of the partition (62). A composite filter element cylinder (64) is movably sleeved on the outer wall of the filter screen cylinder (63). A threaded hole is opened on the outer wall of the dust collection box (61), and a connecting cover (65) is threadedly sealed to the hole wall. The inner wall of the dust collection box (61) is fixedly connected to the outer wall of the side end of the composite filter cartridge (64). The side wall of the composite filter cartridge (64) is in sealed contact with the outer wall of the partition (62). A micro suction pump (66) is fixedly connected to the inner wall of the dust collection box (61). An exhaust pipe (67) is fixedly connected to the output end of the micro suction pump (66). A filter screen (68) is fixedly connected to the air inlet of the dust collection box (61). The filter screen (68) is located inside the rectangular air inlet (8).

7. The elevator guide shoe welding and positioning device according to claim 6, characterized in that, The outer wall of the connecting cover (65) is fixedly connected to a U-shaped handle (9), and the outer wall of one of the L-shaped fixing plates (13) is provided with a through hole that matches the connecting cover (65).

8. The elevator guide shoe welding and positioning device according to claim 6, characterized in that, The weld seam preheating mechanism (7) includes a heat insulation cylinder (71) fixedly embedded in the dust collection box (61). An electric heating coil (72) is fixedly embedded at the top of the heat insulation cylinder (71). The output end of the exhaust pipe (67) is fixedly connected to the bottom end of the heat insulation cylinder (71). An L-shaped rigid pipe (73) is fixedly connected at the top of the heat insulation cylinder (71). A temperature sensor (74) is fixedly connected to the wall of the L-shaped rigid pipe (73). A universal jet nozzle (75) is fixedly connected to the output end of the L-shaped rigid pipe (73).

9. The elevator guide shoe welding and positioning device according to claim 8, characterized in that, The outer wall of the L-shaped fixing plate (13) is fixedly connected to a PLC controller (19), the outer wall of the PLC controller (19) is fixedly connected to a touch control screen (20), the inner wall of the connecting pipe (10) is fixedly connected to a conductive slip ring (21), and a wire slot (22) is opened on the side of the connecting pipe (10) near the L-shaped positioning plate (11).

Images