CN113399888A

CN113399888A - Oil collecting pipe welding device suitable for vertical continuous production of finned radiators

Info

Publication number: CN113399888A
Application number: CN202110812129.2A
Authority: CN
Inventors: 赵子畯; 王越凡; 夏青; 白佳明; 姜洪强; 赵晨; 王冬冬; 李健; 黄进军; 田庆阳
Original assignee: Shenyang Tiantong Electric Co ltd
Current assignee: Shenyang Tiantong Electric Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-09-17

Abstract

The invention discloses an oil collecting pipe welding device suitable for vertical continuous production of finned radiators, and particularly relates to the technical field of finned radiators for transformers. The oil collecting pipe welding device realizes the vertical continuous production of the finned radiator in the oil collecting pipe welding process, solves the problems of frequent displacement and multiple positioning of the finned radiator unit set in the oil collecting pipe welding process, liberates the labor problem of one-line production, greatly reduces the logistics transfer time of the finned radiator in the oil collecting pipe welding process, and meets the requirement of intelligentization of assembling and welding of the finned radiator. The welding device for the oil collecting pipe provided by the invention fundamentally changes the welding production mode of the oil collecting pipe of the finned radiator and provides convenient conditions for the connection of the welding production mode with the front production process and the back production process.

Description

Oil collecting pipe welding device suitable for vertical continuous production of finned radiators

Technical Field

The invention belongs to the field of machining and manufacturing of finned radiators, and particularly relates to an oil collecting pipe welding device suitable for vertical continuous production of finned radiators.

Background

At present, the finned radiator industry for the power transformer has been developed in China for nearly decades, at present, the production mode of manual assembly, manual hoisting and crane overturning is still adopted for welding the oil collecting pipes of the finned radiator unit pieces, the manual participation degree is high, the production mode of welding the oil collecting pipes has a plurality of uncontrollable artificial factors, and meanwhile, the production mode also depends on the consciousness of workers in the aspect of safety. Welding of the finned radiator oil collecting pipe depends on manual assembly and welding. At present, the German equipment with the highest degree of automation in the production of the finned radiator also can turn over the finned radiator group to adjust the posture and then can be positioned, and the oil collecting pipe of the finned radiator can be welded by using a special tool.

For example, the bulletin number is: in the welding system, after the oil collecting pipe and the radiating fin are clamped in place, because the beam structure and the lateral positioning notch of the radiating fin fixed on the beam completely shield the straight-section welding seam on the oil collecting pipe and the straight-section welding seam under the oil collecting pipe in the large flanging type radiator, the welding of the large flanging type radiator cannot be realized, and meanwhile, the welding process needs to be matched with a positioner to carry out multiple angle adjustments, so that the production efficiency of products is seriously reduced.

In conclusion, the welding process of the oil collecting pipe of the finned radiator industry for the power transformer still adopts a laggard production mode, and the discrete production mode of the welding of the oil collecting pipe of the existing finned radiator severely restricts the development of the industry.

Disclosure of Invention

Technical problem to be solved

The invention provides an oil collecting pipe welding device suitable for vertical continuous production of finned radiators, and aims to provide an effective solution for vertical continuous production of finned radiators for transformers in an oil collecting pipe assembling and welding process, reduce labor intensity of workers, improve assembling and welding quality of the oil collecting pipe, and avoid displacement in a clamping and welding process of radiator unit sheets in the oil collecting pipe welding process in production of the finned radiators.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme: an oil collecting pipe welding device suitable for vertical continuous production of finned radiators comprises: the pair of gantry type welding mechanisms are arranged oppositely, the pushing type shuttle car is connected with the front process and the rear process, the pair of gantry type welding mechanisms arranged oppositely further comprises a welding support, a pair of symmetrical robot seventh shaft motion systems are arranged on the outer side of the welding support, a welding robot and a welding system are arranged on the seventh shaft motion system, unit piece guide wheel sets are arranged on the inner side of the welding support, two sets of oil collecting pipe swing arm positioning systems arranged in a staggered mode are arranged on the unit piece outlet and the unit piece inlet side of the welding support, and double-stroke clamping jaws used for grabbing and positioning the oil collecting pipes are arranged at the tail end of each oil collecting pipe swing arm positioning system.

Furthermore, the welding support is composed of a pair of welding steel structures which are arranged in parallel and jointly connected through an intermediate connecting beam, the welding steel structures are internally of hollow structures, technological lightening holes are formed in non-bearing positions of the steel structures, a counterweight balance mechanism of a seventh axis motion system of the robot is further arranged inside the welding steel structures, and two outer sides, two inner sides and an outlet/inlet side of the parallel welding steel structures are respectively welded with corresponding guide and transmission mechanism mounting plates for positioning.

Furthermore, the pushing type shuttle vehicle pushes the cell group positioned on the two sides and in the height direction in the horizontal direction, and an internal adjusting mechanism is applied to the pushing type shuttle vehicle, so that the pushing type shuttle vehicle is suitable for all the finned radiators with the length of 1.3-4 m and the height of 0.6-1.8 m. The push type shuttle car provides conveying power for pushing the unit piece group, and the circulation positioning of the unit piece group at the oil collecting pipe welding station and the front and back processes is realized by a side support and a side positioning device in the station, so that the accumulated precision error generated in the logistics transfer process is eliminated.

Further, install linear guide and lead screw drive mechanism on the mounting panel that two outsides of parallel weld steel construction set up, planetary reducer and servo motor are connected to the input of lead screw, the seventh pivoting bracket of robot is connected to the holder drive end of lead screw, the seventh pivoting bracket of robot is connected on the guide rail slip table in two outsides of parallel weld steel construction, the cantilever structure of the symmetry central plane of seventh pivoting bracket of robot is provided with welding robot, welding robot sixth axle end is provided with welding anticollision and welder.

Further, be provided with the direction wheelset of two sets of symmetries in the both sides of parallel weld steel construction, the location wheelset carries out equidistant arranging according to the minimum length of cell piece, the location wheelset includes the wheelset regulating plate, be provided with the position seat group on the wheelset regulating plate, be provided with adjusting bolt on the position seat group, still be provided with linear guide group on the regulating plate, set up spacing on the linear guide, be provided with the guide pulley on the spacing, be provided with lubricated passageway on the guide pulley, adjusting bolt is fixed in on the slide through the positioning seat, be fixed with the rectangle spring through adjusting screw between slide and positioning seat and make the pre-compaction. The two symmetrical guide wheel sets can adjust the corresponding distance and the corresponding quantity according to the specification and the model of the finned radiator.

Further, export and the entrance side of parallel weld steel construction are symmetrical mechanism, be provided with guide rail and lead screw drive mechanism on the mounting panel of parallel weld steel construction outlet side, planetary reducer and servo motor are connected to the input of lead screw, the slip table mounting bracket is connected to the holder transmission end of lead screw, the slip table mounting bracket is connected with RV speed reducer and cross roller bearing simultaneously, the slip table mounting bracket is the base of rigidity swing arm simultaneously also, RV speed reducer and cross roller bearing's input is provided with the rigidity swing arm, still be provided with the locating pin dish on the sea grass mounting bracket, be provided with pin cylinder and pin on the rigidity swing arm, the pin can carry out the transmission with the locating pin dish cooperation after fixed to the rigidity swing arm and fix.

Further, the thrust cylinder base of two stroke clamping jaws sets up in rigid swing arm end, be provided with thrust cylinder, oil-free bush and a pair of hinge claw on the thrust cylinder base, be provided with the joint that floats on the thrust cylinder, the joint that floats connects in the thrust collar and provides release power for the thrust collar, be provided with the guide bar in the oil-free bush, the guide bar is connected with the thrust collar and provides the direction for the thrust collar, still be provided with hinge and collet on a pair of hinge claw, the other one end of hinge is connected in the thrust collar. The oil collecting device is characterized in that the thrust oil cylinder drives the hinge mechanism to grab the oil collecting pipe at the first section of the pushing-out stroke, after the double-stroke clamping jaw positions the oil collecting pipe and the unit piece group, the thrust oil cylinder pushes out the second section of the stroke, the elastic clamping jaw at the tail end of the hinge jaw is compressed by thrust, and the oil collecting pipe extends out of the grabbing range of the clamping jaw.

(III) advantageous effects

The welding device for the oil collecting pipe, which is suitable for vertical continuous production of the finned radiator, has the advantages that no radiator unit fin is transferred in the welding process of the oil collecting pipe, the welding quality consistency is high, and no manual work is involved in the welding process. Compared with the existing manufacturing method, the continuous vertical welding of the horizontal postures of the unit pieces greatly improves the welding production efficiency of the oil collecting pipe of the finned radiator, meanwhile, the production is free of manual intervention, and a foundation is laid for the full-automatic continuous production of the finned radiator.

Drawings

FIG. 1 is a side view of an oil collecting pipe welding device for vertical continuous production of finned radiators.

Fig. 2 is a front view of a welding device for oil collecting pipes in vertical continuous production of finned radiators.

Fig. 3 is a top view of the oil collecting pipe welding device for vertical continuous production of finned radiators.

Fig. 4 is a single side elevation view of a welding device for oil collecting pipes in vertical continuous production of finned radiators.

Fig. 5 is a side view of the welding device of the oil collecting pipe for vertical continuous production of the finned radiator.

Figure 6 is a side view of the rigid swing arm shaft.

Figure 7 is a side view of a dual stroke jaw shaft.

Figure 8 is a top view of the dual stroke gripper.

The above figures note that: 1. welding a steel structure; 2. a connecting beam; 3. a seventh shaft support of the robot; 4. a welding robot; 5. a rigid swing arm; 6. a double-stroke clamping jaw; 7. a side support guide group; 8. a heat sink die; 9. a base casting; 10, a linear guide rail; 11. a planetary reducer; 12. a servo motor; 13. a linear guide rail; 14. a lifting screw rod; 15. a planetary reducer; 16. a servo motor; 17. a welding gun; 18. a linear module; 19. a planetary reducer; 20. a servo motor; 21. a slider; 22. a rotary supporting seat; 23. the RV reducer base; 24. a servo motor; 25. a crossed roller bearing; 26. an RV reducer; 27. positioning pins; 28. a rigid swing arm; 29. a thrust cylinder base; 30. a thrust oil cylinder; 31. a floating joint; 32. a hinge claw; 33. a hinge; 34. a thrust collar; 35. an elastic chuck.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

Example 1

Referring to fig. 1, 2 and 3, the welding device for the oil collecting pipe suitable for vertical continuous production of the finned radiator comprises welding steel structures 1, every two welding steel structures 1 form a gantry-type fixed frame through connecting beams 2, a seventh shaft bracket 3 of the robot, a rigid swing arm 5 and a side support guide set 7 are arranged on the gantry-type fixed frame, the seventh shaft bracket 3 of the robot is arranged on the outer side of the gantry-type fixed frame, the rigid swing arm 5 is arranged on the outlet side of the gantry-type fixed frame, and the side support guide set 7 is arranged on the inner side of the gantry-type fixed frame. The radiator unit fins 8 are arranged in the middle of the side support guide group 7, and guide wheel groups in the radiator unit fins are introduced for centering and guiding.

Referring to fig. 4, a single-side view of the welding device for the oil collecting pipe suitable for vertical continuous production of the finned radiator is shown, the seventh shaft bracket 3 of the robot is fixed on the welding steel structure 1 through a linear guide rail 13 and a lifting screw 14, a planetary reducer 15 is arranged at the driving end of the lifting screw 14, a servo motor 16 is arranged on the planetary reducer 15, a welding robot 4 is further arranged on the seventh shaft bracket 3 of the robot, and a welding gun 17 is arranged at the end of the sixth shaft of the welding robot 4.

Referring to fig. 5, the lifting type of the rigid swing arm 5 is guided by a linear module 18, an output end of a planetary reducer 19 is fixedly connected to a driving end of the linear module 18, an output end of a servo motor is fixed to an input end of the planetary reducer 19, and a holder of the linear module 18 is fixedly connected to a rotary support 22 in the rigid swing arm 5.

Referring to fig. 6, the rigid swing arm 5 includes a slider 21, the slider 21 is disposed on a rotation support seat 22 and an RV reducer seat 23, the rotation support seat 22 and the RV reducer seat 23 are fixedly connected to form a base fixing seat of the rigid swing arm, a flange surface of the rotation support seat 22 is fixedly connected with a mounting surface of a crossed roller bearing, an output end of the RV reducer 26 is fixedly connected with a flange surface of a rigid swing arm 28, an input end of the RV reducer is fixedly connected with a servo motor 24, the rigid swing arm 28 is further provided with a positioning pin 27 and a driving mechanism pin cylinder thereof, and the tail end of the rigid swing arm 28 is further provided with a double-stroke clamping jaw.

Referring to fig. 7 and 8, the double-stroke clamping jaw comprises a thrust cylinder base 29, a flange-connected thrust cylinder 30 is arranged at the rear of the thrust cylinder base 29, hinge claws 32 are connected to hinge holes at two sides of the thrust cylinder base 29, a telescopic rod joint of the thrust cylinder 30 is connected with a floating joint 31, hinge holes at the middle of the hinge claws 32 at two sides are connected with one end of a hinge 33, the other end of the hinge 33 and the floating joint 31 are fixedly connected with a thrust head 34, and a pair of elastic chucks 35 are further arranged on the hinge claws 32.

Furthermore, the thrust oil cylinder drives the hinge mechanism to grab the oil collecting pipe at the first section of the pushing-out stroke, after the double-stroke clamping jaw completes the positioning of the oil collecting pipe and the unit piece group, the thrust oil cylinder pushes out the second section of the stroke, the elastic clamp at the tail end of the hinge jaw is compressed by the thrust, and the oil collecting pipe extends out of the grabbing range of the clamping jaw.

The oil collecting pipe welding device suitable for vertical continuous production of the finned radiators is automatically transformed according to a manual welding process of the oil collecting pipes of the finned radiators, the postures of the finned radiators are fixed by using the side support guide groups 7, the rigid swing arms 5 and the double-stroke clamping jaws 6 at the tail ends of the rigid swing arms are used for fixedly clamping the oil collecting pipes, and the seventh shaft support 3 and the welding robot 4 of the robot are used for simulating manual welding operation on gaps between the oil collecting pipes and unit pieces.

Example 2

This example is identical to example 1 except for the above-mentioned portions.

Preferably, the seventh axis of the robot can also refer to a mode of using a truss manipulator, the seventh axis bracket 3 of the robot is fixed on the welding steel structure 1, and a lifting track and a driving device are arranged on the robot mounting seat. In this embodiment, only the welding robot 4 performs the lifting motion, and the seventh shaft support 3 of the robot is fixed.

Example 3

Preferably, the rigid swing arm 5 is to send the oil collecting pipe from the feeding station to the welding position, and besides the swing arm mechanism described in embodiment 1, the rigid swing arm can also be implemented by using a translational linear motion mechanism, and the linear motion mechanism is arranged on the linear module 18. The mechanism comprises a linear motion guide mechanism, a reciprocating transmission mechanism and an oil collecting pipe pushing mechanism, wherein the linear motion guide mechanism and the reciprocating transmission mechanism are arranged on the linear module 18, the rigid swing arm 5 is replaced by a rigid linear mechanism, and the oil collecting pipe pushing mechanism is arranged at the tail end of the rigid linear mechanism. The oil collecting pipe pushing mechanism comprises a thrust cylinder and a guide mechanism which are used for avoiding displacement of the double-stroke clamping jaw.

Example 4

This example corresponds to the continuous production process of example 1 except for the above-mentioned portion.

Preferably, the double-stroke clamping jaw can be changed into a semi-closed-loop parallel opening and closing clamping jaw on the premise of the preferred scheme in embodiment 3, and the parallel opening and closing clamping jaw has the advantages that: the special-shaped piece welded on the oil collecting pipe can be subjected to position adjustment on line, a clamp pre-pressing spring is further arranged in the parallel opening and closing clamping jaws, and overload force is generated in the grabbing process of the oil collecting pipe by the flat opening and closing clamping jaws to prevent the oil collecting pipe from being damaged. The internal driving mechanism of the parallel opening and closing clamping jaw is a self-locking mechanism of a worm gear, the characteristics of high speed ratio and large loading capacity are applied, and then the grabbing and positioning actions of the parallel opening and closing clamping jaw on the oil collecting pipe are completed by combining a heavy-load pre-pressing spring.

The present invention has been described in detail with respect to the above embodiments, but the scope of the invention is not limited thereto, and various modifications may be made thereto and equivalents may be substituted for elements thereof without departing from the scope of the invention, so long as structural conflicts do not exist, technical features mentioned in the embodiments may be combined in any way, and task reference signs in the claims should not be construed as limiting the claims to which they relate, the embodiments being regarded as illustrative rather than restrictive in any way. Therefore, all technical solutions that fall within the scope of the claims are within the scope of the present invention.

Claims

1. An oil collecting pipe welding device suitable for vertical continuous production of a finned radiator comprises a fixed welding base frame, a movable welding base frame, two groups of symmetrically arranged side supporting and positioning mechanisms, a seventh shaft bracket and a moving mechanism of a robot, a robot welding system, a lifting rotary positioning swing arm and a double-stroke clamping jaw. The welding device for the oil collecting pipe is characterized in that when a unit block enters the welding process, the movable welding base frame adjusts the distance between two sets of welding base frames according to the model of the finned radiator, meanwhile, two sets of symmetrically arranged side supporting and positioning mechanisms perform equidistant positioning on the welding base frames, meanwhile, the lifting, rotating, positioning and swinging arms drive the double-stroke clamping jaws to grab and swing the pre-installed oil collecting pipe to the welding position of the oil collecting pipe, and then the seventh shaft of the robot drives the robot welding system to perform welding operation on the oil collecting pipe. The method is characterized in that: in the oil collecting pipe welding device, the finned radiator is always kept in a vertical positioning and welding state in the action process, and the small-sized welding parts on the oil collecting pipe can be avoided by the flexible clamping method of the lifting, rotating, positioning and swinging arm and the double-stroke clamping jaw.

2. An oil collecting pipe welding device suitable for vertical continuous production of finned radiators according to claim 1, wherein: the lift direction and the drive of lift gyration location swing arm set up on welding basic frame, still be provided with gyration direction and drive on lift direction and the drive, the end of gyration swing arm is provided with the double-stroke clamping jaw, the end of double-stroke clamping jaw snatchs the oil collecting pipe, the oil collecting pipe is being accomplished back double-stroke clamping jaw with the cell location and is starting the second section stroke, pushes out the clamping jaw scope with the oil collecting pipe and assembles with the cell piece convergent flow mouth.

3. The oil collecting pipe welding device suitable for the vertical continuous production of the finned radiators according to claim 1, wherein the double-stroke clamping jaw comprises a thrust oil cylinder base, a thrust oil cylinder, a guide mechanism, a floating joint, a hinge jaw, a hinge, a spring clamp and a thrust head. The method is characterized in that: the device comprises a thrust oil cylinder, a pair of hinge claws, a pair of spring chucks and a pair of spring chucks, and is characterized in that the thrust oil cylinder and the pair of hinge claws are arranged on a base of the thrust oil cylinder, the sliding end of the thrust oil cylinder is fixedly connected with a floating joint, the front part of the floating joint is provided with a thrust head, the tail ends of the pair of hinge claws are provided with a pair of symmetrical hinges, and the tail ends of the hinges are symmetrically provided with a pair of opposite spring chucks.

4. An oil collecting pipe welding device suitable for vertical continuous production of finned radiators according to claim 1, wherein the lifting rotary positioning swing arm comprises a mounting bracket, a lifting guide rail screw rod, a moving sliding table, an RV reducer, a servo motor and a rigid swing arm. The method is characterized in that: the utility model discloses a welding machine, including swing arm, installing support, be provided with elevating guide and drive lead screw on the installing support and be used for providing the direction and the power that go up and down to the swing arm, be provided with the motion slip table on the slider of guide rail and the lead screw holder, be provided with the RV speed reducer on the motion slip table, servo motor is connected to the input of RV speed reducer, and the rigidity swing arm is connected to the output, the drive side other end of rigidity swing arm is connected with cross roller bearing.