Welding tool for construction hoist trolley frame and welding method thereof

Abstract

The present invention discloses a welding tool for a construction hoist trolley frame, comprising a base platform and a quick clamping device, a flip clamping device, a sleeve positioning device, a pressing device, a mainboard positioning pin, and a connecting seat positioning device on the base platform. Two quick clamping devices are installed on one side of the base platform, and two flip clamping devices and a sleeve positioning device are arranged between the two quick clamping devices. A pressing device and a connecting seat positioning device are provided on the outer side of one quick clamping device, and the other side of the base platform is symmetrically arranged with the side. In addition, a number of mainboard positioning pins are provided at the holes on the base platform corresponding to the overall trolley frame. Welding is completed on the tool, and the use of a quick clamp for clamping and positioning can greatly reduce welding deformation, or have anti-deformation capabilities, while ensuring the size of each positioning component.

Description

Technical Field

[0001] The present invention relates to the technical field of construction hoists, in particular to a welding tool for a construction hoist trolley frame and a welding method thereof. Background Art

[0002] Construction hoists are commonly used in construction to transport people and cargo. They primarily serve the purpose of transporting construction workers and materials to heights. They are primarily composed of a guide rail frame, a drive system, a cage, an electronic control system, and a safety system. The drive system consists of an integral trolley frame, electrical components, a motor base plate, a coupling device, side rollers, a back wheel, a drive gear, load-bearing wheels, and a safety tube. The lifting and lowering motion of a construction hoist is primarily achieved by the drive system driving the cage along the guide rail frame. The drive system provides power via the electronic control system to drive the hoist, while the cage provides space for both people and cargo. The safety system ensures the safe use of the equipment. The gears in the drive system mesh with the racks on the guide rail frame to provide the up and down climbing force. The upper and lower load-bearing wheels and side rollers in the cage ensure its attachment to the guide rail frame. The upper and lower load-bearing wheels and side rollers are mounted on the cage via the cage main channel steel frame. The cage's main structure is welded together from the upper and lower frames and the main channel steel frame. The drive system is connected to the cage via the connecting plate on the cage main channel steel frame, thereby driving the cage. Therefore, the manufacturing accuracy of the entire trolley frame is closely related to the overall production quality of the cage, the relative motion stability of the cage and the guide rail frame, and the transmission effect between the cage and the drive system. This in turn has a significant impact on the smooth operation of the cage, ride comfort, and the service life of the equipment.

[0003] Generally, the main components of the overall trolley frame include: the main plate, connecting seat, safety hook, top plate, attached plate, baffle, several bent plates, bottom plate, rib plate, sealing plate, tube, seat plate, and connecting plate. The main plate, connecting seat, safety hook, top plate, attached plate, and several bent plates form the main body of the overall trolley frame of the cage, and the other parts are welded to the main body. Among them, the seat plate has side roller mounting holes for installing side rollers; the bent plate also has lower load-bearing wheel mounting holes for installing the lower load-bearing wheel; the connecting seat realizes the connection with the cage; the main plate has upper load-bearing wheel mounting holes, safety tube mounting holes, back wheel mounting holes, and motor mounting holes for installing the upper load-bearing wheel, safety tube, back wheel, and motor.

[0004] At present, the main method for welding the overall trolley frame of the hoist cage is to use the rigidity of the material itself, mark and position each welding position according to the designed size, and then use simple tooling to position and fix the above components during spot welding. After the overall spot welding is completed, it is supplemented with reinforcing rods to improve the structural rigidity, and finally repair welding is performed. Due to the welding thermal deformation during the welding process, this method causes the back-to-back spacing of the non-welded connection side of the main board to decrease after welding is completed and cooled, and the parallelism of the two main slots cannot be guaranteed. In addition, the dimensional positioning during welding is not accurate, which in turn has a great impact on the positioning dimensions of other components welded on the main slots. The accuracy of the entire product cannot be met, and even post-weld correction cannot meet the design requirements of each structural component. In order to compensate for welding deviations, overall processing is generally required after welding, and the overall processing cost is relatively high. Summary of the Invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a welding tooling and a welding method for a construction elevator trolley frame, so that welding can be completed on the tooling, and the use of a quick clamp for clamping and positioning can greatly reduce welding deformation, or have anti-deformation capabilities, while ensuring the size of each positioning component.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a welding tool for a construction elevator trolley frame, comprising a base platform and a quick clamping device, a flip clamping device, a sleeve positioning device, a pressing device, a main board positioning pin and a connecting seat positioning device on the base platform, two quick clamping devices are installed on one side of the base platform, two flip clamping devices and a sleeve positioning device are arranged between the two quick clamping devices, the outer side of one quick clamping device is provided with a pressing device and a connecting seat positioning device, the other side of the base platform is symmetrically arranged with the side, and several main board positioning pins are provided at the holes on the base platform corresponding to the overall trolley frame, the quick clamping device comprises a clamping slider mechanism, a clamping mounting seat, a quick clamp, a connecting pin, a mounting sleeve and a thrust device, the clamping mounting seat is connected to the clamping slider mechanism, the clamping slider mechanism is installed on the base platform, the clamping mounting seat is provided with a mounting sleeve on the outer side, a connecting pin is provided in the mounting sleeve, the connecting pin is connected to the driving end of the thrust device, the inner side of the clamping mounting seat is provided with two grooves for placing the mounting seat plate, and the quick clamp is installed on the aforementioned clamping mounting seat.

[0007] In the above technical solution, the flip clamping device includes a flip slider mechanism, a flip mounting seat, a flip mechanism and a thrust device. The flip mounting seat is installed on the flip slider mechanism, the flip slider mechanism is installed on the base platform, and the flip mounting seat is provided with an ear plate connected to the flip mechanism. The outer side of the flip mounting seat is connected to the thrust device.

[0008] In the above technical solution, the flip mechanism includes a pin, a flip frame and a tightening bolt. The flip frame is a U-shaped mechanism. A pin is provided at one end of the flip frame for hinged connection with the ear plate on the flip mounting seat, and a tightening bolt is provided at the other end.

[0009] In the above technical solution, the sleeve positioning device includes a connecting shaft, a bent plate positioning pin, a positioning sleeve and a thrust device. The bent plate positioning pin is inserted into the positioning sleeve, and one end of the bent plate positioning pin is connected to a connecting shaft, and the connecting shaft is connected to the driving end of the thrust device.

[0010] In the above technical solution, the clamping device includes a pressure plate, a stud bolt, a connecting bolt and a nut. The connecting bolt passes through the pressure plate and is threadedly connected to the base platform. A long waist-shaped hole is provided on the pressure plate. The stud bolt passes through the waist-shaped hole of the pressure plate, and a nut for adjusting the tightness is provided on the stud bolt.

[0011] In the above technical solution, the connecting seat positioning device includes an ear seat, a pin shaft and a gasket. The ear seat is connected to the base platform, and a pin shaft is passed through the two ear plates on the ear seat. The gasket is placed on the pin shaft and is located on the inner side of the ear seat.

[0012] A welding method for a welding tool for a construction hoist trolley frame comprises the following steps:

[0013] Step 1: Fix the connecting seat in the integral trolley frame to the connecting seat positioning device with a pin;

[0014] Step 2: Place the mainboard in the integral trolley frame on the mainboard locating pins so that the locating holes on the mainboard are aligned with the locating pins, confirm the position of the mainboard, and then press the mainboard with the clamping device, and slide the flip slider mechanisms of the two flip clamping devices to the corresponding positions through the thrust device, and flip the flip mechanism into place so that the tightening bolts on the flip mechanism press both sides of the mainboard;

[0015] Step 3: Use the thrust device to slide the clamping slider mechanism of the four quick clamping devices to the corresponding position, and place the two mounting base plates in the two grooves of the clamping mounting base. Clamp the mounting base plates with the quick clamp, weld the sealing plate 2 and sealing plate 1 to the front and rear sides of the mounting base plate in turn, then weld the bent plate 2 to one side of the sealing plate 1, and weld the top plate and the reinforcing rib plate to the front and rear sides of the mounting base plate at the other end of the main board. The bent plate 1 is positioned in the height direction through the base platform, and is attached to the side of the main board for horizontal positioning, and then welded;

[0016] Step 4: Push the casing positioning device through the thrust device to fix the second pipe on the bent plate positioning pin of the casing positioning device until the thrust device pushes the second pipe into the circular hole of the bent plate 2, and then weld it;

[0017] Step 5: After completing the above steps, mark the components on the motherboard by marking them out, and then solder the remaining components;

[0018] Step 6: After welding is completed and fully cooled, loosen the clamping devices, remove the positioning pins, and take out the product.

[0019] The beneficial effects of this invention are: by positioning, clamping, and correcting deformation of the entire trolley frame, the effects of welding deformation of the main structure on mating parts are eliminated or reduced, and product quality is improved through precise positioning of mating parts. The use of quick clamps for clamping and positioning improves work efficiency and labor intensity, and also makes loading and unloading of workpieces more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a front view of the present invention.

[0022] Figure 3 for Figure 2 Top view of .

[0023] Figure 4 It is a structural schematic diagram of the quick clamping device of the present invention.

[0024] Figure 5 It is a schematic structural diagram of the first flip clamping device of the present invention.

[0025] Figure 6 It is a schematic structural diagram of the second flip clamping device of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the casing positioning device of the present invention.

[0027] Figure 8 It is a structural schematic diagram of the turning mechanism of the present invention.

[0028] Figure 9 It is a structural schematic diagram of the pressing device of the present invention.

[0029] Figure 10 It is a structural schematic diagram of the mainboard locating pin of the present invention.

[0030] Figure 11 It is a structural schematic diagram of the connection seat positioning device of the present invention.

[0031] Figure 12 It is a structural schematic diagram of the integral small vehicle frame of the present invention.

[0032] Among them, 1. Base platform, 2. Quick clamping device, 3. First flip clamping device, 4. Second flip clamping device, 5. Casing positioning device, 6. Flip mechanism, 7. Pressing device, 8. Mainboard positioning pin, 9. Connecting seat positioning device, 10. Thrust device, 11. Quick clamp, 12. Overall trolley frame, 13. Clamping slide rail, 14. Clamping side slider, 15. Clamping mounting seat, 16. Mounting sleeve, 17. Connecting pin, 18. First flip slide rail, 19. First flip mounting seat, 20. Second flip slide rail, 21. Second flip mounting seat, 22 , connecting shaft, 23, bent plate locating pin, 24, locating sleeve, 25, pin shaft, 26, flip frame, 27, tightening bolt, 28, pressure plate, 29, stud bolt, 30, connecting bolt, 31, nut, 32, first locating pin, 33, second locating pin, 34, gasket, 35, ear seat, 36, pin shaft, 37, connecting seat, 38, closing plate one, 39, tube two, 40, bent plate two, 41, main board, 42, closing plate two, 43, bent plate one, 44, tube one, 45, reinforcing rib plate one, 46, mounting seat plate two, 47, top plate, 48, mounting seat plate one. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 3 The welding tooling of a construction hoist trolley frame shown in the figure comprises a base platform 1 and a quick clamping device 2, a first flip clamping device 3, a second flip clamping device 4, a sleeve positioning device 5, a clamping device 7, a mainboard positioning pin 8 and a connecting seat positioning device 9 on the base platform. Two quick clamping devices are installed on one side of the base platform, and two flip clamping devices and a sleeve positioning device are arranged between the two quick clamping devices. A clamping device 7 and a connecting seat positioning device 9 are provided on the outer side of one of the quick clamping devices. The other side of the base platform is symmetrically arranged with the side, and a plurality of mainboard positioning pins 8 are provided at the holes on the base platform corresponding to the overall trolley frame.

[0035] like Figure 4 As shown, the quick clamping device includes a clamping slider mechanism, a clamping mounting seat 15, a quick clamp 11, a connecting pin 17, a mounting sleeve 16, and a thrust device 10. The clamping mounting seat 15 is connected to the clamping slider mechanism, which is mounted on the base platform. The clamping mounting seat is provided with a mounting sleeve 16 on the outside, and a connecting pin 17 is provided inside the mounting sleeve 16. The connecting pin is connected to the driving end of the thrust device 10. The inner side of the clamping mounting seat 15 is provided with two grooves for accommodating the mounting seat plate 1 48 and the mounting seat plate 2 46. The quick clamp 11 is mounted on the clamping mounting seat. The quick clamp 11 can clamp the mounting seat plate 1 48.

[0036] The clamping slider mechanism includes a clamping slide rail 13 and a clamping side slider 14. The clamping side slider is connected to the clamping mounting seat and can slide on the clamping slide rail.

[0037] like Figure 5 As shown, the first flip clamping device 3 includes a first flip slider mechanism, a first flip mounting seat 19, a flip mechanism 6 and a thrust device 10. The first flip mounting seat 19 is mounted on the flip slider mechanism, and the first flip slider mechanism is mounted on the base platform 1. The first flip mounting seat is provided with an ear plate connected to the flip mechanism 6, and the outer side of the flip mounting seat is connected to the thrust device 10.

[0038] like Figure 6 As shown, the second flip clamping device 4 includes a second flip slider mechanism, a second flip mounting seat 21, a flip mechanism 6 and a thrust device 10. The second flip mounting seat 21 is installed on the second flip slider mechanism, and the second flip slider mechanism is installed on the base platform 1. The second flip mounting seat is provided with an ear plate connected to the flip mechanism 6, and the outer side of the second flip mounting seat 21 is connected to the thrust device 10.

[0039] The two flip clamping devices have the same structure. However, considering the welding position interference and the size of the clamping part during welding, the two flip clamping devices have different widths, and the widths of the connected reverse mechanisms 6 are also different.

[0040] The first flip slider mechanism includes a first flip slide rail 18 and a first flip side slider.

[0041] The second flip slider mechanism includes a second flip slide rail 20 and a second flip side slider.

[0042] like Figure 8 As shown, the flip mechanism 6 includes a pin 25, a flip frame 26 and a tightening bolt 27. The flip frame 26 is a U-shaped mechanism. One end of the flip frame 26 is provided with a pin 25 for hingedly connecting with the ear plate on the flip mounting seat, and the other end is provided with a tightening bolt 27.

[0043] like Figure 7 The sleeve positioning device 5 includes a connecting shaft 22, a bent plate positioning pin 23, a positioning sleeve 24 and a thrust device 10. The bent plate positioning pin 23 is inserted into the positioning sleeve 24, and a connecting shaft 22 is provided at one end of the bent plate positioning pin 23. The connecting shaft 22 is connected to the driving end of the thrust device 10.

[0044] like Figure 9As shown, the clamping device 7 includes a pressing plate 28, a stud bolt 29, a connecting bolt 30 and a nut 31. The connecting bolt 30 passes through the pressing plate 28 and is threadedly connected to the base platform 1. The pressing plate 28 is provided with a long waist-shaped hole, the stud bolt 29 passes through the waist-shaped hole of the pressing plate, and the stud bolt is provided with a nut 31 for adjusting the tightness.

[0045] like Figure 11 As shown, the connecting seat positioning device 9 includes an ear seat 35, a pin shaft 36 and a gasket 34. The ear seat 35 is connected to the base platform 1. The two ear plates on the ear seat are penetrated by a pin shaft 36. The gasket 34 is placed on the pin shaft 36 and is located on the inner side of the ear seat 35.

[0046] like Figure 10 As shown, the mainboard positioning pin 8 includes a first positioning pin 32 and a second positioning pin 33 .

[0047] like Figure 12 As shown, the overall trolley frame includes a connecting seat 37, a closing plate 38, a second pipe 39, a second bent plate 40, a main plate 41, a second closing plate 42, a first bent plate 43, a first pipe 44, a reinforcing rib plate 45, a second mounting seat plate 46, a top plate 47, and a first mounting seat plate 48.

[0048] A welding method for a welding tool for a construction hoist trolley frame comprises the following steps:

[0049] Step 1: Fix the connecting seat 37 in the integral trolley frame to the connecting seat positioning device 9 with the pin 36, and use the gasket 34 to adjust the distance between the connecting seat 37 and the ear seat 35;

[0050] Step 2: Place the mainboard 41 on the mainboard positioning pins so that the positioning holes on the mainboard are aligned with the first positioning pin 32 and the second positioning pin 33. Confirm the position of the mainboard, then press the mainboard 41 with the pressing device 7, and slide the flip slider mechanisms of the two flip clamping devices to fit the sides of the mainboard through the thrust device 10, and flip the flip mechanism 6 into place, tighten the tightening bolts 27, so that the tightening bolts 27 press the two sides of the mainboard;

[0051] Step three, use each thrust device 10 to slide the clamping slider mechanism of the four quick clamping devices to the corresponding position, and place the mounting seat plate 1 48 and the mounting seat plate 2 46 in the two grooves of the clamping mounting seat in an upper and lower arrangement, clamp and fix the mounting seat plate 1 with the quick clamp, weld the closing plate 2 42 and the closing plate 1 38 to the front and rear sides of the mounting seat plate in turn, then weld the bent plate 2 40 to one side of the closing plate 1 38, weld the top plate 47 and the reinforcing rib plate 1 45 to the front and rear sides of the mounting seat plate at the other end of the main board 41, and position the bent plate 1 43 in the height direction through the base platform 1, and stick to the side of the main board 41 for horizontal positioning, and then weld;

[0052] Step 4: Use the thrust device 10 to push the sleeve positioning device 5 to fix the second tube 39 on the bent plate positioning pin 23 of the sleeve positioning device until the thrust device pushes the second tube 39 into the circular hole of the second bent plate 10. After reaching the end of the stroke, it moves to the welding position and performs welding;

[0053] Step 5: After completing the above steps, first weld the main board with the connecting seat, mounting seat plate, top plate sealing plate, and pipe, and then weld the rib plate 48 and safety hook;

[0054] Step 6: After welding is completed and fully cooled, loosen the clamping devices, remove the positioning pins, and take out the product.

[0055] 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 changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A welding tool for a construction hoist trolley frame, characterized by: The camming mechanism is configured to allow the camming tool to move relative to the support frame of the vehicle body and to enable the camming tool to move relative to the support frame of the vehicle body to move relative to the support frame. The camming mechanism is configured to allow the camming tool to move relative to the support frame of the vehicle body to move relative to the support frame of the vehicle body. The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

2. The welding tool for the construction hoist trolley frame according to claim 1 is characterized by: The clamping device includes a pressing plate, a stud bolt, a connecting bolt and a nut. The connecting bolt passes through the pressing plate and is threadedly connected to the base platform. The pressing plate is provided with a long waist-shaped hole. The stud bolt passes through the waist-shaped hole of the pressing plate, and a nut for adjusting the tightness is provided on the stud bolt.

3. The welding method of the welding tool for the construction hoist trolley frame according to claim 1 comprises the following steps: Step 1: Fix the connecting seat in the integral trolley frame to the connecting seat positioning device with a pin; Step 2: Place the mainboard in the integral trolley frame on the mainboard locating pins so that the locating holes on the mainboard are aligned with the locating pins, confirm the position of the mainboard, and then press the mainboard with the clamping device, and slide the flip slider mechanisms of the two flip clamping devices to the corresponding positions through the thrust device, and flip the flip mechanism into place so that the tightening bolts on the flip mechanism press both sides of the mainboard; Step 3: Use the thrust device to slide the clamping slider mechanism of the four quick clamping devices to the corresponding position, and place the two mounting base plates in the two grooves of the clamping mounting base. Clamp the mounting base plates with the quick clamp, weld the sealing plate 2 and sealing plate 1 to the front and rear sides of the mounting base plate in turn, then weld the bent plate 2 to one side of the sealing plate 1, and weld the top plate and the reinforcing rib plate to the front and rear sides of the mounting base plate at the other end of the main board. The bent plate 1 is positioned in the height direction through the base platform, and is attached to the side of the main board for horizontal positioning, and then welded; Step 4: Push the casing positioning device through the thrust device to fix the second pipe on the bent plate positioning pin of the casing positioning device until the thrust device pushes the second pipe into the circular hole of the bent plate 2, and then weld it; Step 5: After completing the above steps, mark the components on the motherboard by marking them out, and then solder the remaining components; Step 6: After welding is completed and fully cooled, loosen the clamping devices, remove the positioning pins, and take out the product.

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