Welding device for forklift oil pipe and pipe joint

Abstract

The invention relates to the technical field of welding devices, and discloses a welding device for a forklift oil pipe and a pipe joint, which comprises a welding box with a base arranged at the bottom; the welding mechanism is used for welding the forklift oil pipe main body and the pipe joint main body; the positioning rotating mechanism is used for fixing the forklift oil pipe main body and the pipe joint main body and driving the forklift oil pipe main body and the pipe joint main body to rotate during welding; the loading and unloading mechanism is used for driving the forklift oil pipe main body and the pipe joint main body to automatically enter and exit the welding box; and the polishing mechanism is used for polishing the weld joint in the discharging process after welding is completed. Through the arrangement of the grinding mechanism, the purpose of automatic discharging can be achieved after welding is completed through the welding device, a grinding block can be driven to move back and forth during discharging, and then the welding position can be effectively ground through the grinding block moving back and forth in the downward moving process of the forklift oil pipe body and the pipe joint body; and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and more particularly to a welding device for a forklift oil pipe and a pipe joint. Background Art

[0002] Forklift oil pipes are usually located under the forklift chassis, connecting the fuel tank and the engine. During the production process of forklift oil pipes, welding equipment is required to weld the pipe joints to the forklift oil pipes.

[0003] In the prior art, a patent application with the announcement number CN219966866U discloses a welding device for automobile oil pipes and pipe joints, including: a base; a support frame fixed on the base; two support plates are provided and slidably arranged on the base; a first bidirectional screw is rotatably arranged on the support frame and threadedly connected to the support plate; a sliding rod is rotatably arranged on the support plate; a first rotating sleeve is rotatably arranged on the support frame and slidably connected to the sliding rod; a clamping and fixing mechanism is fixed to one end of the sliding rod for clamping and fixing; a first connecting assembly is used to connect two first rotating sleeves; a welding mechanism is arranged on the support frame for welding; and a driving mechanism is used to drive the first bidirectional screw or the first rotating sleeve to rotate; the utility model can quickly weld oil pipes and pipe joints.

[0004] The technical solution proposed by the above patent technology is that when fixing the oil pipe and the pipe joint, the second bidirectional screw is driven to rotate by the driving member, the second bidirectional screw drives two trapezoidal sliders to slide along the mounting seat, the trapezoidal slider drives the arc clamping plate to move, and the two second bidirectional screws clamp and fix the oil pipe or the pipe joint. The above fixing method uses two relatively movable arc clamping plates for fixing, resulting in that the transverse axis of the oil pipe and the pipe joint does not correspond to the transverse axis of the sliding rod after fixing, so that during the rotation of the sliding rod, the oil pipe and the pipe joint will have the problem of eccentric rotation, that is, during the rotation, the distance between the welding point and the welding head keeps changing, which makes it inconvenient to weld the connection and reduces the welding quality.

[0005] To this end, the present invention provides a welding device for a forklift oil pipe and a pipe joint. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The present invention provides a welding device for a forklift oil pipe and a pipe joint, comprising:

[0008] A welding box, wherein a base is provided at the bottom of the welding box;

[0009] A welding mechanism, which is used to weld the forklift oil pipe body and the pipe joint body, the welding mechanism comprises a hydraulic rod fixedly mounted on the top wall of the welding box, and a mounting plate fixedly mounted on the telescopic end of the hydraulic rod, and a welding gun is arranged on the lower surface of the mounting plate;

[0010] A positioning and rotating mechanism, which is used to fix the forklift oil pipe body and the pipe joint body respectively and drive them to rotate during welding;

[0011] The loading and unloading mechanism is used to drive the forklift oil pipe body and the pipe joint body to automatically enter and exit the welding box;

[0012] A grinding mechanism, which is used to grind the weld during the unloading process after welding is completed;

[0013] The cleaning mechanism is used for wiping and cleaning the weld after grinding.

[0014] Preferably, the positioning and rotating mechanism comprises a fixed plate fixedly mounted on the upper surface of the base, and a sliding plate slidably mounted on the upper surface of the base, a rotating column penetrating the fixed plate is rotatably mounted on the surface of the fixed plate, and a positioning tube penetrating the sliding plate is rotatably mounted on the surface of the sliding plate;

[0015] The end of the rotating column and the surface of the positioning tube are both embedded with positioning tubes, and there are two positioning tubes on the positioning tube. The inner wall of the positioning tube is fixed with four electric push rods in a circular array, and the pushing end of the electric push rod is fixed with an arc positioning plate.

[0016] Preferably, the positioning and rotating mechanism also includes two synchronous motors respectively fixed on the outer surfaces of the fixed plate and the sliding plate, and the output ends of the two synchronous motors, the surfaces of the positioning tube and the rotating column are all fixed with gear discs, and the gear discs at the output ends of the two synchronous motors are respectively meshed with the gear discs 609 on the surfaces of the positioning tube and the rotating column.

[0017] A rectangular groove is provided on the upper surface of the base, and a driving motor is fixedly provided on the inner wall of the rectangular groove. A transverse threaded column is fixedly provided on the output end of the driving motor, and the bottom end of the sliding plate is slidably connected to the inner wall of the rectangular groove, and a threaded hole is provided on the side of the sliding plate and threadedly connected to the outer surface of the transverse threaded column.

[0018] Preferably, the loading and unloading mechanism includes two L-shaped plates fixed on the upper surface of the base, and a lifting motor fixed on the upper surface of the welding box, the output end of the lifting motor extends to the interior of the welding box and is fixed with a vertical threaded column, and a limit rod is fixedly provided on the inner top wall of the welding box at a position symmetrical to the vertical threaded column, a threaded hole threadedly connected to the outer surface of the vertical threaded column is formed on the upper surface of one of the L-shaped plates, and a sliding hole slidably connected to the outer surface of the limit rod is formed on the upper surface of the other L-shaped plate, and limit blocks are fixedly provided at the bottom ends of the vertical threaded column and the limit rod.

[0019] Preferably, the grinding mechanism comprises an L-shaped slide bar slidably arranged on the top wall of the welding box, and a grinding block fixedly arranged at the end of the L-shaped slide bar and corresponding to the weld between the forklift oil pipe body and the pipe joint body;

[0020] The grinding mechanism also includes a connecting rod rotatably arranged on the inner walls of both sides of the welding box, and a reciprocating screw fixed on the surface of the connecting rod, the side of the L-shaped sliding rod is provided with a threaded hole threadedly connected to the outer surface of the reciprocating screw, the inner top wall of the welding box is fixed with a connecting block, and the outer surface of the connecting block is rotatably provided with a connecting shaft passing through the connecting block, one end of the connecting shaft and the surface of the vertical threaded column are fixed with a first bevel gear that meshes with each other, and the other end of the connecting shaft and the surface of the connecting rod are fixed with a second bevel gear that meshes with each other.

[0021] Preferably, the cleaning mechanism comprises a horizontal plate fixedly mounted on the inner wall of the welding box, and a vertical shaft rotatably mounted on the upper surface of the horizontal plate, a cleaning block is fixedly mounted on the top of the vertical shaft, and a cleaning felt is fixedly mounted on the back of the cleaning block;

[0022] An L-shaped fixing rod is fixed to the back side of the fixing plate, and a spur rack is fixed to the end of the L-shaped fixing rod, a fixing block is fixed to the upper surface of the horizontal plate, a horizontal axis penetrating the fixing block is rotatably arranged on the surface of the fixing block, and a third bevel gear meshing with each other is fixed to one end of the horizontal axis and the surface of the vertical axis, and a gear meshing with the spur rack is fixed to the other end of the horizontal axis, an opening for the gear to rotate is provided on the upper surface of the horizontal plate, and a torsion spring is provided at the bottom end of the vertical axis and the surface of the horizontal plate to facilitate resetting of the vertical axis after rotation.

[0023] Preferably, a cleaning mechanism for cleaning the surface of the cleaning felt is provided on the back of the cleaning block, and the cleaning mechanism includes two connecting plates symmetrically fixed on the back of the welding box, and a cleaning pipe rotatably arranged on the two connecting plates and penetrating the two connecting plates, and a water storage tank fixed on the back of the welding box, a water pump is provided on the upper surface of the water storage tank, the water inlet end of the water pump extends to the interior of the water storage tank and is fixedly provided with a filter cover, the water outlet end of the water pump is provided with a hose extending to the interior of the cleaning pipe, and a plurality of water outlet heads inclined and facing the cleaning felt are equidistantly provided on the outer surface of the cleaning pipe.

[0024] Preferably, a water collecting groove corresponding to the cleaning felt on the back of the cleaning block is fixedly provided on the upper surface of the fixing block, and a return pipe extending to the inside of the water storage tank is embedded in the inner bottom wall of the water collecting groove.

[0025] Preferably, a rotating disk is fixedly provided at the end of the cleaning tube, and an L-shaped lead rod is fixedly provided on the surface of the rotating disk, a pull rope is fixedly provided at the end of the L-shaped lead rod, a fixed rod is fixedly provided on the surface of the L-shaped sliding rod, a guide pulley is provided on the inner top wall of the welding box, and one end of the pull rope away from the L-shaped lead rod passes through the guide pulley and is fixedly connected to the surface of the fixed rod.

[0026] The beneficial effect of the present invention is that: the welding device for forklift oil pipe and pipe joint described in the present invention is through.

[0027] The welding device for forklift oil pipes and pipe joints described in the present invention can effectively fix the forklift oil pipe body and the pipe joint body respectively by setting a welding mechanism, a positioning and rotating mechanism, and a loading and unloading mechanism. At the same time, when loading, it can drive the base and the positioning and rotating mechanism to move upward and enter the interior of the welding box for welding, and can drive the forklift oil pipe body and the pipe joint body to rotate at the same time, thereby achieving the purpose of rotational welding of the weld.

[0028] The welding device for forklift oil pipes and pipe joints described in the present invention can achieve the purpose of automatic material discharge after welding is completed by arranging a grinding mechanism, and during the material discharge process, the welding position can be effectively polished by the grinding block moving back and forth, thereby improving work efficiency.

[0029] The welding device for a forklift oil pipe and a pipe joint of the present invention can achieve the purpose of effectively wiping and cleaning the weld between the polished forklift oil pipe body and the pipe joint body during the discharging process by providing a cleaning mechanism.

[0030] The welding device for forklift oil pipes and pipe joints described in the present invention can wash the surface of the cleaning felt from top to bottom through the water outlet head by setting a cleaning mechanism, and can drive the cleaning pipe to swing back and forth, so that the water sprayed from the water outlet head can flow to the surface of the cleaning felt in a swinging manner, which is more conducive to fully washing the surface of the cleaning felt. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal structure of the welding box of the present invention;

[0033] Figure 3 yes Figure 2 The enlarged structural diagram at A in the middle;

[0034] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention after the welding box is removed;

[0035] Figure 5It is a schematic diagram of the front cross-section structure of the welding box of the present invention;

[0036] Figure 6 The present invention Figure 5 The enlarged structural diagram at B in the middle;

[0037] Figure 7 It is a schematic diagram of the side section structure of the welding box of the present invention;

[0038] Figure 8 The present invention Figure 7 The enlarged structural diagram at C in the middle;

[0039] Fig. 9 It is a schematic diagram of the side view structure of the horizontal plate and the fixed plate of the present invention;

[0040] Fig.10 The present invention Figure 7 Schematic diagram of the second viewing angle structure;

[0041] Fig.11 The present invention Fig.10 Enlarged structural diagram at point D in the middle.

[0042] In the figure:

[0043] 100. Welding box;

[0044] 200, base;

[0045] 300, welding mechanism; 301, hydraulic rod; 302, mounting plate; 303, welding gun;

[0046] 400, forklift oil pipe body;

[0047] 500, pipe joint body;

[0048] 600, positioning and rotating mechanism; 601, fixed plate; 602, sliding plate; 603, rotating column; 604, positioning tube; 605, positioning cylinder; 606, electric push rod; 607, arc-shaped positioning plate; 608, synchronous motor; 609, toothed disc; 6010, driving motor; 6011, transverse threaded column;

[0049] 700, loading and unloading mechanism; 701, L-shaped plate; 702, lifting motor; 703, vertical threaded column; 704, limiting rod; 705, limiting block;

[0050] 800, grinding mechanism; 801, L-shaped slide bar; 802, grinding block; 803, connecting rod; 804, reciprocating screw; 805, connecting shaft; 806, first bevel gear; 807, second bevel gear;

[0051] 900, cleaning mechanism; 901, vertical axis; 902, cleaning block; 903, cleaning felt; 904, L-shaped fixing rod; 905, spur rack; 906, horizontal axis; 907, third bevel gear; 908, gear; 909, torsion spring; 9010, horizontal plate; 9011, fixing block;

[0052] 1000, cleaning mechanism; 1001, cleaning pipe; 1002, water storage tank; 1003, water pump; 1004, hose; 1005, water collecting tank; 1006, return pipe; 1007, rotating disk; 1008, L-shaped lead rod; 1009, pull rope; 10010, fixing rod; 10011, guide pulley; 10012, water outlet. DETAILED DESCRIPTION

[0053] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0054] Embodiment 1

[0055] like Figures 1 to 10 As shown in the figure, a welding device for a forklift oil pipe and a pipe joint according to an embodiment of the present invention is provided. Figure 2 , including: a welding box 100, a base 200 is provided at the bottom of the welding box 100; a welding mechanism 300, which is used to weld the forklift oil pipe body 400 and the pipe joint body 500, the welding mechanism 300 includes a hydraulic rod 301 fixedly arranged on the inner top wall of the welding box 100, and a mounting plate 302 fixedly arranged on the telescopic end of the hydraulic rod 301, and a welding gun 303 is provided on the lower surface of the mounting plate 302; a positioning and rotating mechanism 600, which is used to fix the forklift oil pipe body 400 and the pipe joint body 500 respectively, and drive the forklift oil pipe body 400 and the pipe joint body 500 to rotate during welding.

[0056] Please refer to Figure 4 , Figure 5 The positioning and rotating mechanism 600 includes a fixed plate 601 fixed on the upper surface of the base 200, and a sliding plate 602 slidably arranged on the upper surface of the base 200. A rotating column 603 penetrating the fixed plate 601 is rotatably arranged on the surface of the fixed plate 601, and a positioning tube 604 penetrating the sliding plate 602 is rotatably arranged on the surface of the sliding plate 602;

[0057] The end of the rotating column 603 and the surface of the positioning tube 604 are both embedded with positioning tubes 605, and there are two positioning tubes 605 on the positioning tube 604. The inner wall of the positioning tube 605 is fixed with four electric push rods 606 in a circular array, and the pushing end of the electric push rod 606 is fixed with an arc-shaped positioning plate 607.

[0058] Specifically, under the action of the electric push rod 606, the forklift oil pipe body 400 and the pipe joint body 500 can be respectively fixed at the center position of the positioning tube 604 and the right positioning cylinder 605, so that forklift oil pipe bodies 400 and pipe joint bodies 500 of different sizes can be effectively fixed, ensuring stability during welding.

[0059] Please refer to 4 in particular. The positioning and rotating mechanism 600 also includes two synchronous motors 608 respectively fixed on the outer surfaces of the fixed plate 601 and the sliding plate 602, and the output ends of the two synchronous motors 608, the surfaces of the positioning tube 604 and the rotating column 603 are all fixed with toothed discs 609, and the toothed discs 609 at the output ends of the two synchronous motors 608 are respectively meshed with the toothed discs 609 on the surfaces of the positioning tube 604 and the rotating column 603.

[0060] A rectangular groove is provided on the upper surface of the base 200, and a driving motor 6010 is fixedly provided on the inner wall of the rectangular groove. A transverse threaded column 6011 is fixedly provided on the output end of the driving motor 6010, and the bottom end of the sliding plate 602 is slidably connected to the inner wall of the rectangular groove, and a threaded hole threadedly connected to the outer surface of the transverse threaded column 6011 is provided on the side of the sliding plate 602.

[0061] Specifically, by providing a driving motor 6010 and a transverse threaded column 6011, the rotation of the driving motor 6010 can drive the positioned forklift oil pipe body 400 to automatically approach the pipe joint body 500 to achieve docking, which is convenient for welding.

[0062] The loading and unloading mechanism 700 is used to drive the forklift oil pipe body 400 and the pipe joint body 500 to automatically enter and exit the welding box 100.

[0063] Embodiment 2

[0064] Please refer to Figure 3 , Figure 4The loading and unloading mechanism 700 includes two L-shaped plates 701 fixed on the upper surface of the base 200, and a lifting motor 702 fixed on the upper surface of the welding box 100. The output end of the lifting motor 702 extends to the interior of the welding box 100 and is fixed with a vertical threaded column 703. A limiting rod 704 is fixed on the inner top wall of the welding box 100 at a position symmetrical to the vertical threaded column 703. A threaded hole threadedly connected to the outer surface of the vertical threaded column 703 is provided on the upper surface of one L-shaped plate 701, and a sliding hole slidably connected to the outer surface of the limiting rod 704 is provided on the upper surface of the other L-shaped plate 701, and a limiting block 705 is fixed at the bottom end of the vertical threaded column 703 and the limiting rod 704.

[0065] Specifically, the setting of the limiting rod 704 effectively ensures the stability of the base 200 during the lifting process.

[0066] In this embodiment, by providing a welding mechanism 300, a positioning and rotating mechanism 600, and a loading and unloading mechanism 700, the welding device can effectively fix the forklift oil pipe body 400 and the pipe joint body 500 respectively when welding the forklift oil pipe body 400 and the pipe joint body 500, and at the same time, can achieve the purpose of rotational welding of the weld.

[0067] Embodiment 2

[0068] On the basis of the first embodiment, the difference from the first embodiment is that:

[0069] A welding device for a forklift oil pipe and a pipe joint, further comprising:

[0070] A grinding mechanism 800 is used to grind the weld during the unloading process after welding is completed;

[0071] Please refer to Figure 3 , Figure 6 The grinding mechanism 800 includes an L-shaped slide bar 801 slidably disposed on the inner top wall of the welding box 100, and a grinding block 802 fixedly disposed at the end of the L-shaped slide bar 801 and corresponding to the weld between the forklift oil pipe body 400 and the pipe joint body 500;

[0072] The grinding mechanism 800 also includes a connecting rod 803 rotatably arranged on the inner walls on both sides of the welding box 100, and a reciprocating screw 804 fixed on the surface of the connecting rod 803. The side of the L-shaped slide bar 801 is provided with a threaded hole threadedly connected to the outer surface of the reciprocating screw 804. A connecting block is fixedly arranged on the inner top wall of the welding box 100, and a connecting shaft 805 that passes through the connecting block is rotatably arranged on the outer surface of the connecting block. One end of the connecting shaft 805 and the surface of the vertical threaded column 703 are fixedly provided with a first bevel gear 806 that meshes with each other, and the other end of the connecting shaft 805 and the surface of the connecting rod 803 are fixedly provided with a second bevel gear 807 that meshes with each other.

[0073] Specifically, by setting the connecting shaft 805, the first bevel gear 806 and the second bevel gear 807, the grinding block 802 can be driven to move back and forth during the process of the vertical threaded column 703 rotating and driving the base 200 to move downward to achieve the purpose of fully grinding the welding point.

[0074] In this embodiment, by providing a grinding mechanism 800, the welding device can drive the grinding block 802 to move back and forth during the discharge process after welding is completed, and then the welding point can be effectively polished by the grinding block 802 that moves back and forth during the downward movement of the forklift oil pipe body 400 and the pipe joint body 500, thereby improving work efficiency.

[0075] Embodiment 3

[0076] On the basis of Embodiment 1 and Embodiment 2, and different from Embodiment 1 and Embodiment 2, the following points are provided:

[0077] A welding device for a forklift oil pipe and a pipe joint, further comprising:

[0078] The cleaning mechanism 900 is used to wipe and clean the weld after grinding.

[0079] Please refer to Figure 7 , Figure 8 The cleaning mechanism 900 includes a horizontal plate 9010 fixedly mounted on the inner wall of the welding box 100, and a vertical shaft 901 rotatably mounted on the upper surface of the horizontal plate 9010, and a cleaning block 902 is fixedly mounted on the top of the vertical shaft 901, and a cleaning felt 903 is fixedly mounted on the back of the cleaning block 902;

[0080] An L-shaped fixing rod 904 is fixed to the back of the fixing plate 601, and a spur rack 905 is fixed to the end of the L-shaped fixing rod 904, a fixing block 9011 is fixed to the upper surface of the horizontal plate 9010, a horizontal axis 906 which passes through the fixing block 9011 is rotatably provided on the surface of the fixing block 9011, and a third bevel gear 907 which meshes with each other is fixed to one end of the horizontal axis 906 and the surface of the vertical axis 901, a gear 908 which meshes with the spur rack 905 is fixed to the other end of the horizontal axis 906, an opening is provided on the upper surface of the horizontal plate 9010 for the gear 908 to rotate, and a torsion spring 909 is provided on the bottom end of the vertical axis 901 and the surface of the horizontal plate 9010 for facilitating the resetting of the vertical axis 901 after rotation.

[0081] Specifically, when the forklift oil pipe body 400 and the pipe joint body 500 are separated from the grinding block 802 and move downward, the cleaning block 902 can be automatically turned 180 degrees, so that the cleaning felt 903 can wipe the polished area, and the cleaning felt 903 can automatically reset after wiping.

[0082] In this embodiment, by providing a cleaning mechanism 900, when the forklift oil pipe body 400 and the pipe joint body 500 move downward and the welding point is separated from the position of the grinding block 802, when the forklift oil pipe body 400 and the pipe joint body 500 continue to move downward, the cleaning felt 903 can be used to effectively wipe and clean the debris generated by the grinding of the welding point, thereby achieving the purpose of effectively wiping and cleaning the welding point between the forklift oil pipe body 400 and the pipe joint body 500 after grinding.

[0083] Embodiment 4

[0084] On the basis of the first, second and third embodiments, and different from the first, second and third embodiments, the following are the differences:

[0085] A welding device for a forklift oil pipe and a pipe joint, further comprising:

[0086] Please refer to Figure 8 , Fig. 9 , Fig.10 A cleaning mechanism 1000 for cleaning the surface of the cleaning felt 903 is arranged on the back of the cleaning block 902. The cleaning mechanism 1000 includes two connecting plates symmetrically fixed on the back of the welding box 100, and a cleaning pipe 1001 rotatably arranged on the two connecting plates and penetrating the two connecting plates, and a water storage tank 1002 fixed on the back of the welding box 100. A water pump 1003 is arranged on the upper surface of the water storage tank 1002. The water inlet end of the water pump 1003 extends to the interior of the water storage tank 1002 and is fixed with a filter cover. The water outlet end of the water pump 1003 is provided with a hose 1004 extending to the interior of the cleaning pipe 1001. The outer surface of the cleaning pipe 1001 is equidistantly provided with a plurality of water outlet heads 10012 inclined and facing the cleaning felt 903.

[0087] Specifically, the inclined setting of the water outlet head 10012 can enable the water flow to move downward from the top of the cleaning felt 903 to achieve the purpose of water washing.

[0088] Please refer to Figure 8 A water collecting trough 1005 corresponding to the cleaning felt 903 on the back of the cleaning block 902 is fixed on the upper surface of the fixing block 9011 , and a reflux pipe 1006 extending to the inside of the water storage tank 1002 is embedded in the inner bottom wall of the water collecting trough 1005 .

[0089] Specifically, the setting of the water collecting tank 1005 and the return pipe 1006 can recycle the water after washing, and flow it back into the water storage tank 1002 through the return pipe 1006. The top of the water storage tank 1002 is provided with a water filling port, and the bottom is provided with a sewage valve.

[0090] Please refer to Figure 7 , Figure 8A rotating disk 1007 is fixedly provided at the end of the cleaning tube 1001, and an L-shaped lead rod 1008 is fixedly provided on the surface of the rotating disk 1007, a pull rope 1009 is fixedly provided at the end of the L-shaped lead rod 1008, a fixed rod 10010 is fixedly provided on the surface of the L-shaped slide bar 801, a guide pulley 10011 is provided on the inner top wall of the welding box 100, and one end of the pull rope 1009 away from the L-shaped lead rod 1008 passes through the guide pulley 10011 and is fixedly connected to the surface of the fixed rod 10010.

[0091] Specifically, by pulling the rope 1009 , the cleaning tube 1001 can be driven to swing back and forth while the polishing block 802 moves back and forth, so that the water discharged through the water outlet head 10012 can flow toward the surface of the cleaning felt 903 in a swinging manner.

[0092] In this embodiment, by providing a cleaning mechanism 1000, when the forklift oil pipe body 400 and the pipe joint body 500 move downward to discharge materials, when the welding point between the forklift oil pipe body 400 and the pipe joint body 500 passes through the area of ​​the grinding block 802, the cleaning pipe 1001 can be driven to swing back and forth, so that the water sprayed from the water outlet head 10012 can flow to the surface of the cleaning felt 903 in a swinging manner, which is more conducive to sufficient water washing of the surface of the cleaning felt 903.

[0093] Working principle:

[0094] In the initial state, the base 200 and the welding box 100 are in a separated state. When the welding device is used to weld the forklift oil pipe body 400 and the pipe joint body 500, the pipe joint body 500 can be first inserted into the positioning cylinder 605 on the rotating column 603, and the forklift oil pipe body 400 can be inserted into the interior of the positioning tube 604, and the electric push rods 606 inside the three positioning cylinders 605 are started at the same time to effectively fix the forklift oil pipe body 400 and the pipe joint body 500 respectively, and then the driving motor 6010 is started to drive the transverse threaded column 6011 to rotate, and the rotation of the transverse threaded column 6011 drives the sliding plate 602 to move, and the rotation of the sliding plate 602 drives the positioned forklift oil pipe body 400 to approach the pipe joint body 50 0 and docked with its end, the lifting motor 702 is started again to drive the vertical threaded column 703 to rotate. The rotation of the vertical threaded column 703 drives the L-shaped plate 701 to move upward, and under the action of the limit rod 704, the base 200 and the positioning rotation mechanism 600 are driven to move upward and enter the interior of the welding box 100. Finally, the hydraulic rod 301 is started to drive the mounting plate 302 and the welding gun 303 to move downward to the welding seam position, and the welding gun 303 is started for welding. At the same time, during the welding process, the two synchronous motors 608 can be started at the same time. The rotation of the synchronous motor 608 drives the positioning tube 604 and the rotating column 603 to rotate simultaneously under the action of the two toothed discs 609, thereby driving the forklift oil pipe body 400 and the pipe joint body 500 to rotate simultaneously, thereby achieving The purpose of rotary welding of the weld seam is achieved. After welding is completed, the welding device can first start the lifting motor 702 to drive the vertical threaded column 703 to rotate in the opposite direction, thereby driving the L-shaped plate 701 and the base 200 to move downward, driving the positioning rotation mechanism 600 to move downward, and at the same time starting the two synchronous motors 608 to drive the forklift oil pipe body 400 and the pipe joint body 500 to rotate, thereby driving the welded forklift oil pipe body 400 and the pipe joint body 500 to automatically move downward and separate from the welding box 100, so as to achieve the purpose of automatic discharging. In the process of the forklift oil pipe body 400 and the pipe joint body 500 moving downward, the rotation of the vertical threaded column 703 drives the connecting shaft 805 to rotate under the action of the two first bevel gears 806. The rotation of the connecting shaft 805 drives the connecting rod 803 to rotate under the action of the two second bevel gears 807, and the rotation of the connecting rod 803 drives the reciprocating screw 804 to rotate. The rotation of the reciprocating screw 804 drives the L-shaped slide bar 801 to move back and forth, thereby driving the grinding block 802 to move back and forth, and then the welding part can be effectively polished by the grinding block 802 that moves back and forth during the downward movement of the forklift oil pipe body 400 and the pipe joint body 500, thereby improving the work efficiency. At the same time, during the downward movement of the forklift oil pipe body 400 and the pipe joint body 500, when the welding part is separated from the position of the grinding block 802, the straight rack 905 on the L-shaped fixing rod 904 on the back of the fixing plate 601 can mesh with the gear 908.Continuing to move downward can drive the gear 908 and the horizontal shaft 906 to rotate. The rotation of the horizontal shaft 906 drives the vertical shaft 901 and the cleaning block 902 to rotate under the action of the two third bevel gears 907. When the spur rack 905 is disengaged from the gear 908, the cleaning block 902 can rotate exactly 180 degrees. At this time, the welding point between the forklift oil pipe body 400 and the pipe joint body 500 is in contact with the cleaning felt 903, which can limit the cleaning block 902 and prevent it from returning to its original position. When the forklift oil pipe body 400 and the pipe joint body 500 continue to move downward, The cleaning felt 903 can be used to effectively wipe and clean the debris generated by grinding the welding part. When the welding part of the forklift oil pipe body 400 and the pipe joint body 500 is separated from the position of the cleaning block 902, the vertical shaft 901 can be restored to its original position under the action of the torsion spring 909, that is, the cleaning felt 903 can be rotated to a position facing away from the welding part of the forklift oil pipe body 400 and the pipe joint body 500, thereby achieving the purpose of effectively wiping and cleaning the welding part of the forklift oil pipe body 400 and the pipe joint body 500 after grinding. Finally, it should be noted that In the process of the forklift oil pipe body 400 and the pipe joint body 500 moving downward to discharge the material, when the welding place of the forklift oil pipe body 400 and the pipe joint body 500 passes through the area of ​​the grinding block 802, the water pump 1003 is started to transport the water in the water tank 1002 to the cleaning pipe 1001 through the hose 1004, and the surface of the cleaning felt 903 is washed from top to bottom through the water outlet head 10012. In addition, when the grinding block 802 moves back and forth to grind, the L-shaped slide bar 801 moves back and forth, which can drive the fixed rod 10010 to move back and forth. The back-and-forth movement of the fixed rod 10010 can drive the pull rope 1009 to pull the L-shaped lead rod 1008, and at the same time, the L-shaped lead rod 1008 can rotate downward under the action of its own gravity, thereby achieving the purpose of continuously pulling the L-shaped lead rod 1008 back and forth to make the L-shaped lead rod 1008 swing back and forth. During the reciprocating rotation of the L-shaped lead rod 1008, the cleaning pipe 1001 can be driven to swing back and forth, so that the water sprayed from the water outlet 10012 can flow to the surface of the cleaning felt 903 in a swinging manner, which is more conducive to fully washing the surface of the cleaning felt 903.

[0095] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A welding device for forklift oil pipes and pipe joints, characterized in that: include: A welding box (100), wherein a base (200) is provided at the bottom of the welding box (100); A welding mechanism (300) is used to weld a forklift oil pipe body (400) and a pipe joint body (500), the welding mechanism (300) comprising a hydraulic rod (301) fixedly mounted on the inner top wall of a welding box (100), and a mounting plate (302) fixedly mounted on the telescopic end of the hydraulic rod (301), wherein a welding gun (303) is disposed on the lower surface of the mounting plate (302); A positioning and rotating mechanism (600) is used to respectively fix the forklift oil pipe body (400) and the pipe joint body (500) and drive them to rotate during welding; The loading and unloading mechanism (700) is used to drive the forklift oil pipe body (400) and the pipe joint body (500) to automatically enter and exit the welding box (100).

2. A welding device for forklift oil pipes and pipe joints according to claim 1, characterized in that: The positioning and rotating mechanism (600) comprises a fixed plate (601) fixedly mounted on the upper surface of the base (200), and a sliding plate (602) slidably mounted on the upper surface of the base (200); a rotating column (603) penetrating the fixed plate (601) is rotatably mounted on the surface of the fixed plate (601); and a positioning tube (604) penetrating the sliding plate (602) is rotatably mounted on the surface of the sliding plate (602); A positioning cylinder (605) is embedded in the end of the rotating column (603) and the surface of the positioning tube (604), and there are two positioning cylinders (605) on the positioning tube (604). Four electric push rods (606) are fixedly arranged in a circular array on the inner wall of the positioning cylinder (605), and an arc-shaped positioning plate (607) is fixedly arranged at the pushing end of the electric push rod (606).

3. A welding device for forklift oil pipes and pipe joints according to claim 2, characterized in that: The positioning and rotating mechanism (600) further comprises two synchronous motors (608) respectively fixed on the outer surfaces of the fixed plate (601) and the sliding plate (602), and toothed discs (609) are fixedly provided on the output ends of the two synchronous motors (608), the surfaces of the positioning tube (604) and the rotating column (603), and the toothed discs (609) at the output ends of the two synchronous motors (608) respectively mesh with the toothed discs 609 on the surfaces of the positioning tube (604) and the rotating column (603). A rectangular groove is provided on the upper surface of the base (200), and a driving motor (6010) is fixedly provided on the inner wall of the rectangular groove; a transverse threaded column (6011) is fixedly provided on the output end of the driving motor (6010); the bottom end of the sliding plate (602) is slidably connected to the inner wall of the rectangular groove; a threaded hole is provided on the side of the sliding plate (602) and is threadedly connected to the outer surface of the transverse threaded column (6011).

4. A welding device for forklift oil pipes and pipe joints according to claim 3, characterized in that: The loading and unloading mechanism (700) comprises two L-shaped plates (701) fixed on the upper surface of the base (200), and a lifting motor (702) fixed on the upper surface of the welding box (100), the output end of the lifting motor (702) extends to the interior of the welding box (100) and is fixedly provided with a vertical threaded column (703), a limit rod (704) is fixedly provided on the inner top wall of the welding box (100) at a position symmetrical to the vertical threaded column (703), a threaded hole threadedly connected to the outer surface of the vertical threaded column (703) is provided on the upper surface of one of the L-shaped plates (701), a sliding hole slidably connected to the outer surface of the limit rod (704) is provided on the upper surface of the other L-shaped plate (701), and a limit block (705) is fixedly provided at the bottom end of the vertical threaded column (703) and the limit rod (704).

5. A welding device for forklift oil pipes and pipe joints according to claim 4, characterized in that: The welding box (100) is also provided with a grinding mechanism (800) for grinding the welding point between the forklift oil pipe body (400) and the pipe joint (500) during the blanking process, wherein the grinding mechanism (800) comprises an L-shaped slide bar (801) slidably arranged on the top wall of the welding box (100), and a grinding block (802) fixedly arranged at the end of the L-shaped slide bar (801) and corresponding to the welding seam between the forklift oil pipe body (400) and the pipe joint body (500); The grinding mechanism (800) also includes a connecting rod (803) rotatably arranged on the inner walls of both sides of the welding box (100), and a reciprocating screw (804) fixedly arranged on the surface of the connecting rod (803); a threaded hole threadedly connected to the outer surface of the reciprocating screw (804) is opened on the side of the L-shaped sliding rod (801); a connecting block is fixedly arranged on the inner top wall of the welding box (100), and a connecting shaft (805) rotatably arranged on the outer surface of the connecting block and passing through the connecting block; one end of the connecting shaft (805) and the surface of the vertical threaded column (703) are fixedly arranged with a first bevel gear (806) that meshes with each other, and the other end of the connecting shaft (805) and the surface of the connecting rod (803) are fixedly arranged with a second bevel gear (807) that meshes with each other.

6. A welding device for forklift oil pipes and pipe joints according to claim 2, characterized in that: The welding box (100) is also provided with a cleaning mechanism (900) for cleaning the welding portion between the forklift oil pipe body (400) and the pipe joint (500) after grinding. The cleaning mechanism (900) comprises a horizontal plate (9010) fixedly arranged on the inner wall of the welding box (100), and a vertical shaft (901) rotatably arranged on the upper surface of the horizontal plate (9010), a cleaning block (902) fixedly arranged at the top end of the vertical shaft (901), and a cleaning felt (903) fixedly arranged on the back side of the cleaning block (902); An L-shaped fixing rod (904) is fixedly arranged on the back of the fixing plate (601), and a straight rack (905) is fixedly arranged at the end of the L-shaped fixing rod (904); a fixing block (9011) is fixedly arranged on the upper surface of the horizontal plate (9010); a horizontal shaft (906) penetrating the fixing block (9011) is rotatably arranged on the surface of the fixing block (9011); one end of the horizontal shaft (906) and the surface of the vertical shaft (901) are fixedly arranged with a third bevel gear (907) meshing with each other; the other end of the horizontal shaft (906) is fixedly arranged with a gear (908) meshing with the straight rack (905); an opening for the gear (908) to rotate is provided on the upper surface of the horizontal plate (9010); and a torsion spring (909) is arranged on the bottom end of the vertical shaft (901) and the surface of the horizontal plate (9010) to facilitate the vertical shaft (901) to be reset after rotation.

7. A welding device for forklift oil pipes and pipe joints according to claim 6, characterized in that: The back of the cleaning block (902) is provided with a cleaning mechanism (1000) for cleaning the surface of the cleaning felt (903), the cleaning mechanism (1000) comprising two connecting plates symmetrically fixed on the back of the welding box (100), a cleaning pipe (1001) rotatably arranged on the two connecting plates and penetrating the two connecting plates, and a water storage tank (1002) fixed on the back of the welding box (100), a water pump (1003) is arranged on the upper surface of the water storage tank (1002), the water inlet end of the water pump (1003) extends to the inside of the water storage tank (1002) and is fixedly provided with a filter cover, the water outlet end of the water pump (1003) is provided with a hose (1004) extending to the inside of the cleaning pipe (1001), and the outer surface of the cleaning pipe (1001) is equidistantly provided with a plurality of water outlet heads (10012) inclined and facing the cleaning felt (903).

8. A welding device for forklift oil pipes and pipe joints according to claim 7, characterized in that: A water collecting groove (1005) corresponding to the cleaning felt (903) on the back of the cleaning block (902) is fixedly provided on the upper surface of the fixing block (9011), and a return pipe (1006) extending to the inside of the water storage tank (1002) is embedded in the inner bottom wall of the water collecting groove (1005).

9. A welding device for forklift oil pipes and pipe joints according to claim 8, characterized in that: A rotating disk (1007) is fixedly provided at the end of the cleaning tube (1001), and an L-shaped lead rod (1008) is fixedly provided on the surface of the rotating disk (1007), a pull rope (1009) is fixedly provided at the end of the L-shaped lead rod (1008), a fixed rod (10010) is fixedly provided on the surface of the L-shaped sliding rod (801), a guide pulley (10011) is provided on the inner top wall of the welding box (100), and one end of the pull rope (1009) away from the L-shaped lead rod (1008) passes through the guide pulley (10011) and is fixedly connected to the surface of the fixed rod (10010).

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