Oil cooler welding processing equipment and processing method

Abstract

The present invention relates to the technical field of oil cooler welding, and discloses an oil cooler welding processing equipment and processing method, including an oil cooler body, a connecting pipe body and a bottom plate, wherein the top of the bottom plate is provided with a welding tooling assembly for welding the oil cooler body and the connecting pipe body, and a welding assembly for welding the spliced ​​oil cooler body and the connecting pipe body. The present invention effectively reduces the floor space occupied by the oil cooler welding equipment through integrated splicing positioning, welding, loading and unloading processes, and has a high degree of integration, and each process is closely coordinated. Through the cooperation of rotating assembly one and rotating assembly two, the rotation welding operation of the oil cooler body and the two connecting pipe bodies is realized. By adopting rotation welding, the weld scars at the splicing positions of the oil cooler body and the two connecting pipe bodies are not only smooth, coordinated and beautiful, but also the welding strength is effectively guaranteed, and the welding equipment has a high degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of oil cooler welding, in particular to an oil cooler welding processing device and a processing method. Background Art

[0002] The oil cooler is an indispensable part of modern automobile engines. Its main function is to maintain the temperature of the oil by dissipating heat and ensure the lubrication and cooling effect when the engine is working at high intensity.

[0003] One of the important processes in the processing of oil coolers is welding. The efficiency and quality of welding directly affect the performance and service life of the oil cooler. However, there are still the following problems when welding the two welding holes of the oil cooler to the two connecting pipes respectively:

[0004] At present, welding tools are usually used to press the oil cooler, and one welder aligns the connecting pipe with the welding hole of the oil cooler for splicing, and then another welder performs the pull welding operation, which not only wastes manpower, but also has low docking accuracy. At the same time, during the pull welding operation, since the joint seam between the connecting pipe and the welding hole of the quasi-oil cooler is in a circular shape, this pull welding process not only has high technical requirements for the welder, but also is prone to interruption during the pull welding process, resulting in discontinuous weld scars and insufficient aesthetics;

[0005] When using semi-automatic welding tooling equipment to reduce working hours and improve efficiency for butt welding, the two connecting pipes will interfere with each other. Therefore, how to complete the rotational pulling welding operation of the two connecting pipes without repeated clamping and loading is also an urgent problem to be solved. Summary of the invention

[0006] Technical issues solved

[0007] In view of the deficiencies in the prior art, the present invention provides an oil cooler welding processing equipment and a processing method, which are mainly used to solve the problem that the oil cooler is usually compressed by welding tooling, and a welder aligns the connecting pipe with the welding hole of the oil cooler for splicing, and then another welder performs the pull welding operation, which not only wastes manpower, but also has low docking accuracy. At the same time, when performing pull welding, since the splicing seam between the connecting pipe and the welding hole of the quasi-oil cooler is in a circular shape, this pull welding process not only has high technical requirements for the welder, but also is prone to interruption during the pull welding process, resulting in discontinuous weld scars and insufficient aesthetics. In addition, when using semi-automatic welding tooling equipment for butt welding, the two connecting pipes will interfere with each other. Therefore, how to solve the problem of completing the rotation pull welding operation of the two connecting pipes without repeated clamping and loading is also an urgent problem to be solved.

[0008] Technical Solution

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] An oil cooler welding processing equipment comprises an oil cooler body, a connecting pipe body and a base plate, the top of the base plate is provided with a welding tooling assembly for assembling and welding the oil cooler body and the connecting pipe body and a pull welding assembly for pull welding the spliced ​​oil cooler body and the connecting pipe body, the top of the base plate is provided with a loading assembly for loading the connecting pipe body and a clamping assembly for transferring the connecting pipe body on the loading assembly to the welding tooling assembly, the top of the base plate is provided with a rotating assembly 1 for driving the clamping assembly to rotate and a rotating assembly 2 for driving the welding tooling assembly to rotate, and a pressing assembly for pressing and positioning the connecting pipe body on the welding tooling assembly is provided at the top of the base plate and located on one side of the welding tooling assembly.

[0011] Furthermore, the rotating component 1 and the rotating component 2 both include a mounting frame 1, which is fixedly connected to the top of the base plate, the top of the mounting frame 1 is rotatably connected to a connecting shaft via a bearing, the bottom end of the connecting shaft is keyed to a synchronous pulley 2, the top inner wall of the mounting frame 1 is fixedly connected to a servo motor, and one end of the servo motor output shaft is keyed to a synchronous pulley 1 connected to the synchronous pulley 2 via a synchronous belt drive.

[0012] On the basis of the above-mentioned scheme, the welding tooling assembly includes a turntable 1, which is fixedly connected to the top of the connecting shaft on the rotating assembly 2, and the top of the turntable 1 is fixedly connected to two guide rails 2, and a transverse frame is slidably connected between the two guide rails 2 through a slide, and the top of the transverse frame is fixedly connected to a plurality of limit angle blocks for positioning the oil cooler body, and the top of the turntable 1 is fixedly connected to a transverse motor, one end of the output shaft of the transverse motor is fixed with a threaded rod through a coupling, and the threaded rod is rotatably connected to the top of the turntable 1 through a bearing, one side of the threaded rod is threadedly connected with a threaded sleeve, and the threaded sleeve is fixed to the transverse frame, and a positioning assembly for switching and positioning the positions of the spliced ​​oil cooler body and the connecting pipe body is provided between the turntable 1 and the transverse frame.

[0013] As a further solution of the present invention, the positioning assembly includes a sensing frame, which is fixedly connected to one side of the threaded sleeve, and the top of the turntable one is fixedly connected with slot-type photoelectric switch one, slot-type photoelectric switch two and slot-type photoelectric switch three.

[0014] Furthermore, the feeding assembly includes a mounting frame 2, which is fixedly connected to the top of the base plate, and a feeding hopper and an inclined hopper are fixedly connected to the top of the mounting frame 2, and the inclined hopper is higher than the upper hopper, and two guide rails 1 are provided between the inclined hopper and the upper hopper, and a push plate is slidably connected between the two guide rails 1 through a slide, and a feeding cylinder is fixedly connected to the inside of the mounting frame 2, and one end of the piston rod of the feeding cylinder is fixed to the bottom end of the push plate, and a baffle plate is provided inside the mounting frame 2, and the baffle plate is in contact with the side wall of the push plate and the bottom of the inclined hopper, and a flipping assembly for flipping the connecting pipe body of the inclined hopper from a horizontal state to a vertical state is provided on one side of the mounting frame 2 and below the inclined hopper.

[0015] On the basis of the above scheme, the flipping assembly includes a flipping motor, which is fixedly connected to the inside of the mounting frame 2, one end of the output shaft of the flipping motor is fixedly connected to the flipping shaft, one side of the flipping shaft is fixedly connected to the positioning frame, the top of the positioning frame is provided with a positioning arc groove for positioning the connecting pipe body, both sides of the positioning frame are provided with baffles for limiting the two ends of the connecting pipe body, and the top of the positioning frame is provided with side baffles for blocking the connecting pipe body.

[0016] As a further solution of the present invention, the clamping assembly includes a turntable 2, which is fixedly connected to the top of the connecting shaft on the rotating assembly 1. Slide grooves are provided on both sides of the turntable 2, and a slide is slidably connected between the two slide grooves. A finger cylinder is fixedly connected to the inner wall of the top of the slide, and the slider of the finger cylinder is provided with a clamping claw for clamping the connecting pipe body. A telescopic cylinder is fixedly connected to the top of the turntable 2, and one end of the telescopic cylinder piston rod is fixed to the finger cylinder.

[0017] Furthermore, the pressing assembly includes a mounting frame three, which is fixedly connected to the top of the base plate, and a pressing cylinder is fixedly connected to the top of the mounting frame three. One end of the pressing cylinder piston rod passes through the mounting frame three and is fixedly connected to a mounting plate. The bottom end of the mounting plate is rotatably connected to a rotating shaft through a bearing, and the bottom end of the rotating shaft is provided with an embedded block set to the inner diameter of the connecting pipe body.

[0018] On the basis of the above scheme, the pull welding assembly includes a mounting frame four, which is fixedly connected to the top of the base plate, the top of the mounting frame four is fixedly connected to a mounting seat, the top of the mounting seat is fixedly connected to a guide rail three, one side of the guide rail three is slidably connected to a connecting frame through a slide, one side of the connecting frame is fixedly connected to a welding gun, one end of the mounting seat is fixedly connected to a transverse cylinder, and one end of the piston rod of the transverse cylinder is fixed to the connecting frame.

[0019] A processing method of oil cooler welding processing equipment includes the following steps:

[0020] S1: First, multiple connecting pipe bodies are placed in the upper hopper for pre-discharging. Then, during welding, the oil cooler body needs to be placed between multiple limit angle blocks of the welding tooling assembly. The position of the oil cooler body has three position states. Position state one: the induction frame is located at the position of the slot-type photoelectric switch one. At this time, the oil cooler and the pressing assembly are out of interference, so that it is convenient to place and remove the oil cooler; Position state two: the induction frame is located at the position of the slot-type photoelectric switch two. At this time, the center line of one of the connecting pipe bodies to be welded coincides with the rotation center line of the turntable one, so as to perform rotation welding; Position state three: the induction frame is located at the position of the slot-type photoelectric switch three. At this time, the center line of another connecting pipe body to be welded coincides with the rotation center line of the turntable one, so as to perform secondary rotation welding. Then, by starting the transverse moving motor, the rotation of the transverse moving motor drives the threaded rod to rotate, and the rotation of the threaded rod causes the threaded sleeve to drive the transverse moving frame to move along the guide rail two, thereby realizing real-time switching of the three position states;

[0021] S2: When positioning and loading the connecting pipe body, start the loading cylinder, shorten the loading cylinder and drive the push plate to move downward along the guide rail to a suitable position, so that the top of the push plate is located below the connecting pipe body, and the connecting pipe body rolls to the top of the push plate under the action of gravity, and then the loading cylinder is extended to drive the push plate to move upward and reset, and the connecting pipe body at the top of the push plate rolls into the inclined bucket, and moves along the inclined bucket to the positioning arc groove of the flip assembly, and the connecting pipe body is blocked and limited by the side stop bar and two baffles, and then the flip motor is started, and the flip motor rotates to make the flip shaft drive the positioning frame to rotate 90 degrees, and the connecting pipe body is flipped from a horizontal state to a vertical state;

[0022] S3: When the connecting pipe body is moved, the telescopic cylinder is started, and the extension of the telescopic cylinder drives the finger cylinder to move outward along the slide groove through the slide to a suitable position, so that the connecting pipe body in a vertical state after being flipped by the flip assembly is located between the two clamping claws, and then the finger cylinder is started to clamp the connecting pipe body through the clamping claws, and then the telescopic cylinder is shortened to drive the finger cylinder and the connecting pipe body to move inward to reset, and then the turntable 2 is rotated 90 degrees through the rotating assembly 1, and the connecting pipe body is aligned with the horizontal position of the welding hole to be spliced ​​on the top of the oil cooler body, and then the telescopic cylinder is started to extend and the connecting pipe body is moved to the vertical position of the welding hole to be spliced ​​on the top of the oil cooler body, and the clamping state of the connecting pipe body is released by the finger cylinder, and then the clamping assembly is rotated to reset;

[0023] S4: When positioning and pressing the connecting pipe body, the pressing cylinder is started, and the pressing cylinder is extended to drive the mounting plate to move downward, and the embedding block is stuck into the top of the connecting pipe body and pressed through the rotating shaft, thereby effectively avoiding the centrifugal force generated by the connecting pipe body during the rotation and pulling welding to cause the position of the connecting pipe body to deviate;

[0024] S5: When welding one of the connecting pipe bodies, it is in position state two at this time, and the lateral cylinder is started. The lateral cylinder is extended and drives the connecting frame to move outward along the guide rail three, so that the connecting frame drives the welding gun to move to a suitable position, and the welding head of the welding gun is aligned with the splicing position of the oil cooler body and the connecting pipe body, and then the servo motor is started. The rotation of the servo motor drives the synchronous pulley one to rotate, and the rotation of the synchronous pulley one causes the synchronous pulley two to drive the connecting shaft to rotate, thereby completing the welding operation of the first connecting pipe body;

[0025] S6: When welding another connecting pipe body, it is at position state three at this time, and then the rotating assembly two drives the turntable one to rotate 180 degrees to prevent the first welded connecting pipe body from interfering with the feeding of the second connecting pipe body, and then repeat the feeding and welding operations of the connecting pipe body;

[0026] S7: After the welding operation of the two connecting pipe bodies is completed, the transverse movement motor is started to move the transverse movement frame to the position where the sensing frame is located at the slot-type photoelectric switch 1. At this time, it is in position state 1, and the oil cooler and the pressing assembly are out of interference state, so that it is convenient to remove the oil cooler after welding.

[0027] Beneficial Effects

[0028] Compared with the prior art, the present invention provides an oil cooler welding processing equipment and processing method, which has the following beneficial effects:

[0029] 1. The present invention integrates the splicing positioning, welding, loading and unloading processes, thereby effectively reducing the footprint of the oil cooler welding equipment, and has a high degree of integration. The various processes are closely coordinated, and the rotational welding operation of the oil cooler body and the two connecting pipe bodies is realized through the cooperation of the rotating component one and the rotating component two. The rotary welding is adopted to make the weld scars at the splicing positions of the oil cooler body and the two connecting pipe bodies not only smooth, coordinated, and beautiful, but also effectively ensure the strength of the welding. At the same time, in the process of rotary welding, the problem of non-interference between the positions of the two connecting pipe bodies and the welding components is effectively solved.

[0030] 2. The present invention positions the oil cooler body through a welding tooling assembly, and realizes real-time switching of three position states, namely, position state 1, position state 2 and position state 3, through a transverse motor, so as to be suitable for welding at different positions and loading and unloading operations.

[0031] 3. The present invention uses a loading assembly to quickly load the connecting pipe body, and uses a flipping assembly to flip the connecting pipe body from a horizontal state to a vertical state, with a high degree of automation.

[0032] 4. The present invention realizes the transfer of the connecting pipe body on the feeding assembly to the welding hole position of the oil cooler body to be welded on the welding tooling assembly through the clamping assembly, which not only replaces manual splicing in a highly efficient manner, but also has accurate positioning.

[0033] 5. The present invention uses a pressing assembly to press and position the connecting pipe body on the spliced ​​oil cooler body, thereby effectively avoiding the centrifugal force generated during the rotational welding of the connecting pipe body, which may cause the position of the connecting pipe body to deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the front three-dimensional structure of an oil cooler welding processing equipment proposed by the present invention;

[0035] Figure 2 This is a schematic diagram of the rear three-dimensional structure of an oil cooler welding processing equipment proposed by the present invention;

[0036] Figure 3 This is a structural schematic diagram of a second rotating assembly of an oil cooler welding processing equipment proposed by the present invention;

[0037] Figure 4 This is an enlarged structural schematic diagram of a feeding assembly of an oil cooler welding processing equipment proposed by the present invention;

[0038] Figure 5 This is a schematic cross-sectional structural diagram of a feeding assembly of an oil cooler welding processing equipment proposed by the present invention;

[0039] Figure 6 A schematic diagram of the structure of a flip assembly of an oil cooler welding processing equipment proposed by the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of a clamping assembly of an oil cooler welding processing equipment proposed by the present invention;

[0041] Figure 8 This is a schematic diagram of the enlarged structure of part A of an oil cooler welding processing equipment proposed by the present invention;

[0042] Fig. 9A schematic diagram of the structure of a welding tool assembly of an oil cooler welding processing equipment proposed by the present invention;

[0043] Fig.10 This is a schematic diagram of the structure of a positioning assembly of an oil cooler welding processing equipment proposed by the present invention;

[0044] Fig.11 This is a schematic diagram of the structure of a pressing component of an oil cooler welding processing equipment proposed by the present invention;

[0045] Fig.12 This is a schematic diagram of the enlarged structure of part B of an oil cooler welding processing equipment proposed by the present invention;

[0046] Fig.13 This is a schematic diagram of the structure of a pull welding assembly of an oil cooler welding processing equipment proposed by the present invention.

[0047] In the figure: 1. feeding assembly; 2. clamping assembly; 3. pulling welding assembly; 4. pressing assembly; 5. bottom plate; 6. rotating assembly 1; 7. turntable 1; 8. welding tooling assembly; 9. rotating assembly 2; 10. synchronous pulley 1; 11. servo motor; 12. mounting frame 1; 13. connecting shaft; 14. synchronous pulley 2; 15. feeding hopper; 16. mounting frame 2; 17. oblique bucket; 18. turning assembly; 19. pushing plate; 20. turning motor; 21. guide rail 1; 22. feeding cylinder; 23. baffle; 24. positioning arc groove; 25. side block; 26. positioning frame; 27. turning shaft; 28. telescopic cylinder; 29. ​​turntable 2; 30. Finger cylinder; 31. Gripper; 32. Slide; 33. Slide; 34. Oil cooler body; 35. Connecting pipe body; 36. Limiting angle block; 37. Transverse frame; 38. Guide rail 2; 39. Positioning assembly; 40. Transverse motor; 41. Threaded rod; 42. Threaded sleeve; 43. Induction frame; 44. Slot-type photoelectric switch 1; 45. Slot-type photoelectric switch 2; 46. Slot-type photoelectric switch 3; 47. Press cylinder; 48. Mounting frame 3; 49. Mounting plate; 50. Rotating shaft; 51. Embedded block; 52. Mounting frame 4; 53. Mounting seat; 54. Transverse cylinder; 55. Connecting frame; 56. Guide rail 3; 57. Welding gun. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Reference Figure 1-Figure 13The invention discloses an oil cooler welding processing equipment, comprising an oil cooler body 34, a connecting pipe body 35 and a bottom plate 5. The top of the bottom plate 5 is provided with a welding tool assembly 8 for welding the oil cooler body 34 and the connecting pipe body 35 and a pull welding assembly 3 for pulling welding the spliced ​​oil cooler body 34 and the connecting pipe body 35. The top of the bottom plate 5 is provided with a loading assembly 1 for loading the connecting pipe body 35 and a clamping assembly for transferring the connecting pipe body 35 on the loading assembly 1 to the welding tool assembly 8. The top of the bottom plate 5 is provided with a rotating assembly 6 for driving the clamping assembly 2 to rotate and a rotating assembly 9 for driving the welding fixture assembly 8 to rotate. The top of the bottom plate 5 and one side of the welding fixture assembly 8 is provided with a pressing assembly 4 for pressing and positioning the connecting pipe body 35 on the welding fixture assembly 8. When welding, the oil cooler body 34 is placed on the welding fixture assembly 8, and the connecting pipe body 35 is loaded through the loading assembly 1, the clamping assembly 2 and the rotating assembly 6, and the connecting pipe body 35 and the machine are connected. The oil cooler body 34 is positioned and spliced. At this time, the connecting pipe body 35 is pressed and positioned by the pressing component 4 to avoid deflection of the connecting pipe body 35 under the action of centrifugal force during rotation welding. At this time, the center line of the connecting pipe body 35 coincides with the rotation center line of the welding tooling component 8, and then the rotating connecting pipe body 35 and the oil cooler body 34 are pulled and welded with the cooperation of the rotating component 2 9 and the pulling and welding component 3. After the pulling and welding is completed, the position of the oil cooler body 34 on the welding tooling component 8 is adjusted, and the other connecting pipe body 35 is spliced ​​with another welding hole of the oil cooler body 34 through the feeding component 1 and the clamping component 2, and at this time, the center line of the other welding hole of the oil cooler body 34 coincides with the rotation center line of the welding tooling component 8, and then the other rotating connecting pipe body 35 and the oil cooler body 34 are pulled and welded with the cooperation of the rotating component 2 9 and the pulling and welding component 3, thereby completing the pulling and welding operation of the two connecting pipe bodies 35 and the oil cooler body 34.

[0050] The rotating assembly 1 6 and the rotating assembly 2 9 in the present invention both include a mounting frame 12, which is fixed to the top of the base plate 5 by bolts, and the top of the mounting frame 12 is rotatably connected to a connecting shaft 13 through a bearing, and the bottom end of the connecting shaft 13 is keyed to a synchronous pulley 2 14, and a servo motor 11 is fixed to the top inner wall of the mounting frame 12 by bolts, and one end of the output shaft of the servo motor 11 is keyed to a synchronous pulley 10 connected to the synchronous pulley 2 14 through a synchronous belt drive, and by starting the servo motor 11, the servo motor 11 rotates to drive the synchronous pulley 10 to rotate, and the rotation of the synchronous pulley 10 causes the synchronous pulley 2 14 to drive the connecting shaft 13 to rotate.

[0051] In order to solve the problem of rapid positioning of the oil cooler body 34 and non-interference welding of the two connecting pipe bodies 35 after splicing, the welding tooling assembly 8 in the present invention includes a turntable 7, which is fixed to the top of the connecting shaft 13 on the rotating assembly 29 by bolts, and the top of the turntable 7 is fixed with two guide rails 2 38 by bolts, and a transverse frame 37 is slidably connected between the two guide rails 2 38 through a slide, and the top of the transverse frame 37 is fixed with multiple limit angle blocks 36 for positioning the oil cooler body 34 by bolts, and the top of the turntable 7 is fixed with a transverse motor 40 by bolts, one end of the output shaft of the transverse motor 40 is fixed with a threaded rod 41 through a coupling, and the threaded rod 41 is rotatably connected to the top of the turntable 7 through a bearing, and one side of the threaded rod 41 is threadedly connected with a threaded sleeve 42, and the threaded sleeve 42 is fixed to the transverse frame 37, and the turntable 7 is fixed with A positioning assembly 39 is provided between the transverse frames 37 for switching and positioning the positions of the spliced ​​oil cooler body 34 and the connecting pipe body 35. The positioning assembly 39 includes a sensing frame 43, which is fixed to one side of the threaded sleeve 42 by bolts. A slot-type photoelectric switch 1 44, a slot-type photoelectric switch 2 45 and a slot-type photoelectric switch 3 46 are fixed to the top of the turntable 1 7 by bolts. The position of the oil cooler body 34 has three position states. Position state 1: the sensing frame 43 is located at the position of the slot-type photoelectric switch 1 44. At this time, the oil cooler and the pressing assembly 4 are out of the interference state, so that the oil cooler can be placed and taken out easily. Position state 2: the sensing frame 43 is located at the position of the slot-type photoelectric switch 2 45. At this time, the center line of one of the connecting pipe bodies 35 to be welded coincides with the rotation center line of the turntable 1 7, so as to perform rotation welding.Position state three: the induction frame 43 is located at the position of the slot-type photoelectric switch three 46. At this time, the center line of the other connecting pipe body 35 to be welded coincides with the rotation center line of the turntable one 7, so as to perform secondary rotation welding. The oil cooler body 34 is placed between the multiple limit angle blocks 36, and then one of the connecting pipe bodies 35 is spliced ​​with the oil cooler body 34 through the feeding component 1 and the clamping component 2, and the connecting pipe body 35 is positioned and pressed by the pressing component 4. At this time, the center line of the connecting pipe body 35 coincides with the rotation center line of the turntable one 7. At this time, the induction frame 43 is located at the position of the slot-type photoelectric switch two 45, and then the welding component 3 and the rotating component two 9 are used to weld the connecting pipe body 35 and the oil cooler body 34. The splicing position, and then the transverse motor 40 is started, and the rotation of the transverse motor 40 drives the threaded rod 41 to rotate, and the rotation of the threaded rod 41 causes the threaded sleeve 42 to drive the transverse frame 37 to move along the guide rail two 38, and the oil cooler body 34 The splicing position of another connecting pipe body 35 coincides with the rotation center line of the turntable 1 7. At this time, the sensor frame 43 is located at the position of the slot-type photoelectric switch 3 46, and then the rotating component 2 9 drives the turntable 1 7 to rotate 180 degrees to prevent the first welded connecting pipe body 35 from interfering with the feeding of the second connecting pipe body 35. The other connecting pipe body 35 is spliced ​​with the oil cooler body 34 through the feeding component 1 and the clamping component 2, and the connecting pipe body 35 is positioned and pressed by the pressing component 4, and then the connecting pipe body 35 and the oil cooler body 34 are welded at the splicing position through the welding component 3 and the rotating component 2 9, so as to complete the welding operation of the two connecting pipe bodies 35 and the oil cooler body 34, and then the transverse motor 40 is started to move the transverse frame 37 to the position where the sensor frame 43 is located at the slot-type photoelectric switch 1 44, and at this time, it is out of the interference state with the pressing component 4, so as to facilitate the removal of the oil cooler after the welding. ;

[0052] In order to realize the automatic loading of the connecting pipe body 35, the loading assembly 1 in the present invention includes a mounting frame 16, which is fixed to the top of the base plate 5 by bolts, and the top of the mounting frame 16 is fixed with a loading hopper 15 and an inclined hopper 17 by bolts, and the inclined hopper 17 is higher than the loading hopper 15, and two guide rails 21 are arranged between the inclined hopper 17 and the loading hopper 15, and a push plate 19 is slidably connected between the two guide rails 21 through a slide, and a loading cylinder 22 is fixed to the inside of the mounting frame 16 by bolts, and one end of the piston rod of the loading cylinder 22 is fixed to the bottom end of the push plate 19. The mounting frame 16 is provided with a baffle plate inside, and the baffle plate contacts the side wall of the push plate 19 and the bottom of the inclined bucket 17. A flip assembly 18 for flipping the connecting pipe body 35 for the inclined bucket 17 from a horizontal state to a vertical state is provided on one side of the mounting frame 16 and below the inclined bucket 17. The flip assembly 18 includes a flip motor 20, which is fixed to the inside of the mounting frame 16 by bolts. A flip shaft 27 is fixed to one end of the output shaft of the flip motor 20 by bolts. A positioning frame 26 is fixed to one side of the flip shaft 27 by bolts. The top of the positioning frame 26 The top of the locating frame 26 is provided with a positioning arc groove 24 for positioning the connecting pipe body 35, and the two sides of the locating frame 26 are provided with baffles 23 for limiting the two ends of the connecting pipe body 35, and the top of the locating frame 26 is provided with a side blocking bar 25 for blocking the connecting pipe body 35. At this time, by placing multiple connecting pipe bodies 35 in the loading hopper 15, and then starting the loading cylinder 22, the loading cylinder 22 is shortened to drive the push plate 19 to move downward along the guide rail 21 to a suitable position, so that the top of the push plate 19 is located below the connecting pipe body 35, and the connecting pipe body 35 is connected. Under the action of gravity, it rolls down to the top of the push plate 19, and then the push plate 19 is moved upward and reset by the extension of the feeding cylinder 22, and the connecting pipe body 35 on the top of the push plate 19 rolls down into the inclined bucket 17, and moves along the inclined bucket 17 to the positioning arc groove 24 of the flip assembly 18, and the connecting pipe body 35 is blocked and limited by the side blocking strip 25 and the two baffles 23, and then the flip motor 20 is started, and the flip motor 20 rotates to make the flip shaft 27 drive the positioning frame 26 to rotate 90 degrees, and the connecting pipe body 35 is flipped from the horizontal state to the vertical state.

[0053] In order to realize the positioning and splicing of the connecting pipe body 35, the clamping component 2 in the present invention includes a turntable 29, which is fixed to the top of the connecting shaft 13 on the rotating component 1 6 by bolts, and both sides of the turntable 29 are provided with slide grooves 32, and a slide frame 33 is slidably connected between the two slide grooves 32. A finger cylinder 30 is fixed to the inner wall of the top of the slide frame 33 by bolts, and the slider of the finger cylinder 30 is provided with a clamping claw 31 for clamping the connecting pipe body 35. A telescopic cylinder 28 is fixed to the top of the turntable 29 by bolts, and one end of the piston rod of the telescopic cylinder 28 is fixed to the finger cylinder 30. By starting the telescopic cylinder 28, the telescopic cylinder 28 is extended to drive the finger cylinder 30 to move outward along the slide groove 32 through the slide frame 33 to a suitable position and make it The connecting pipe body 35 in a vertical state after being flipped by the flipping assembly 18 is located between the two clamps 31, and then the finger cylinder 30 is started and the connecting pipe body 35 is clamped by the clamps 31, and then the telescopic cylinder 28 is shortened to drive the finger cylinder 30 and the connecting pipe body 35 to move inward and reset, and then the turntable 2 29 is rotated 90 degrees by the rotating assembly 1 6, and the connecting pipe body 35 is aligned with the horizontal position of the welding hole to be spliced ​​at the top of the oil cooler body 34, and then the telescopic cylinder 28 is started to extend and move the connecting pipe body 35 to the vertical position of the welding hole to be spliced ​​at the top of the oil cooler body 34, and the clamping state of the connecting pipe body 35 is released by the finger cylinder 30, and then the clamping assembly 2 is rotated and reset.

[0054] In order to solve the problem that the position of the connecting pipe body 35 is easily deflected due to the centrifugal force during rotational pull welding, the pressing component 4 in the present invention includes a mounting frame 3 48, which is fixed to the top of the base plate 5 by bolts, and a pressing cylinder 47 is fixed to the top of the mounting frame 3 48 by bolts, one end of the piston rod of the pressing cylinder 47 passes through the mounting frame 3 48 and is fixed to a mounting plate 49 by bolts, and the bottom end of the mounting plate 49 is rotatably connected to a rotating shaft 50 through a bearing, and the bottom end of the rotating shaft 50 is provided with an embedded block 51 set with the inner diameter of the connecting pipe body 35, by starting the pressing cylinder 47, the pressing cylinder 47 is extended to drive the mounting plate 49 to move downward, and the embedded block 51 is stuck in the top of the connecting pipe body 35 and is pressed by the rotating shaft 50, thereby effectively avoiding the centrifugal force generated by the connecting pipe body 35 during rotational pull welding to cause the position of the connecting pipe body 35 to deviate.

[0055] In order to avoid the two connecting pipe bodies 35 from interfering with each other during the pull welding operation and not affecting the problem of automatic loading of the connecting pipe body 35, the pull welding assembly 3 in the present invention includes a mounting frame 4 52, the mounting frame 4 52 is fixed to the top of the bottom plate 5 by bolts, the top of the mounting frame 4 52 is fixed with a mounting seat 53 by bolts, the top of the mounting seat 53 is fixed with a guide rail 3 56 by bolts, one side of the guide rail 3 56 is slidably connected to the connecting frame 55 through a slide, one side of the connecting frame 55 is fixed with a welding gun 57 by bolts, and the mounting seat One end of 53 is fixed with a transverse cylinder 54 by bolts, and one end of the piston rod of the transverse cylinder 54 is fixed to the connecting frame 55. By starting the transverse cylinder 54, the transverse cylinder 54 extends and drives the connecting frame 55 to move outward along the guide rail three 56, so that the connecting frame 55 drives the welding gun 57 to move to a suitable position, and the welding head of the welding gun 57 is aligned with the splicing position of the oil cooler body 34 and the connecting pipe body 35, and the welding head of the welding gun 57 does not interfere with the two rotating connecting pipe bodies 35, and a pull welding operation is performed.

[0056] A processing method of oil cooler welding processing equipment includes the following steps:

[0057] S1: First, multiple connecting pipe bodies 35 are placed in the upper hopper 15 for pre-discharging. Then, during welding, the oil cooler body 34 needs to be placed between multiple limiting angle blocks 36 of the welding fixture assembly 8. The position of the oil cooler body 34 has three position states. Position state 1: the induction frame 43 is located at the position of the slot-type photoelectric switch 1 44. At this time, the oil cooler and the pressing assembly 4 are out of the interference state, so that the oil cooler can be placed and taken out easily. Position state 2: the induction frame 43 is located at the position of the slot-type photoelectric switch 2 45. At this time, one of the The center line of the connecting pipe body 35 to be welded coincides with the rotation center line of the turntable 1 7, so as to perform rotation welding; Position state three: the induction frame 43 is located at the position of the slot-type photoelectric switch 3 46, at which time the center line of the other connecting pipe body 35 to be welded coincides with the rotation center line of the turntable 1 7, so as to perform secondary rotation welding, and then by starting the transverse motor 40, the transverse motor 40 rotates to drive the threaded rod 41 to rotate, and the threaded rod 41 rotates to make the threaded sleeve 42 drive the transverse frame 37 to move along the guide rail 2 38, thereby realizing real-time switching of the three position states;

[0058] S2: When positioning and loading the connecting pipe body 35, the loading cylinder 22 is started, and the loading cylinder 22 is shortened to drive the push plate 19 to move downward along the guide rail 21 to a suitable position, so that the top of the push plate 19 is located below the connecting pipe body 35, and the connecting pipe body 35 rolls to the top of the push plate 19 under the action of gravity, and then the loading cylinder 22 is extended to drive the push plate 19 to move upward and reset, and the connecting pipe body 35 at the top of the push plate 19 rolls into the inclined bucket 17, and moves along the inclined bucket 17 to the positioning arc groove 24 of the flip assembly 18, and the connecting pipe body 35 is blocked and limited by the side stop bar 25 and the two baffles 23, and then the flip motor 20 is started, and the flip motor 20 rotates to make the flip shaft 27 drive the positioning frame 26 to rotate 90 degrees, and the connecting pipe body 35 is flipped from a horizontal state to a vertical state;

[0059] S3: When the connecting pipe body 35 is moved, the telescopic cylinder 28 is started, and the telescopic cylinder 28 is extended to drive the finger cylinder 30 to move outward to a suitable position through the slide 33 along the slide groove 32, so that the connecting pipe body 35 in a vertical state after being flipped by the flip assembly 18 is located between the two clamping claws 31, and then the finger cylinder 30 is started and the connecting pipe body 35 is clamped by the clamping claws 31, and then the telescopic cylinder 28 is shortened to drive the finger cylinder 30 and the connecting pipe body 35 to move inward and reset, and then the turntable 2 29 is rotated 90 degrees by the rotating assembly 1 6, and the connecting pipe body 35 is aligned with the horizontal position of the welding hole to be spliced ​​at the top of the oil cooler body 34, and then the telescopic cylinder 28 is started to extend and the connecting pipe body 35 is moved to the vertical position of the welding hole to be spliced ​​at the top of the oil cooler body 34, and the clamping state of the connecting pipe body 35 is released by the finger cylinder 30, and then the clamping assembly 2 is rotated and reset;

[0060] S4: When positioning and pressing the connecting pipe body 35, the pressing cylinder 47 is started, and the pressing cylinder 47 is extended to drive the mounting plate 49 to move downward, and the embedding block 51 is clamped into the top of the connecting pipe body 35 and pressed through the rotating shaft 50, thereby effectively avoiding the centrifugal force generated by the connecting pipe body 35 during the rotation and pulling welding to cause the position of the connecting pipe body 35 to deviate;

[0061] S5: When welding one of the connecting pipe bodies 35, which is in position state two, the lateral cylinder 54 is started, the lateral cylinder 54 is extended and drives the connecting frame 55 to move outward along the guide rail three 56, so that the connecting frame 55 drives the welding gun 57 to move to a suitable position, and the welding head of the welding gun 57 is aligned with the splicing position of the oil cooler body 34 and the connecting pipe body 35, and then the servo motor 11 is started, the servo motor 11 rotates to drive the synchronous pulley 10 to rotate, and the synchronous pulley 10 rotates to make the synchronous pulley 2 14 drive the connecting shaft 13 to rotate, thereby completing the welding operation of the first connecting pipe body 35;

[0062] S6: When welding another connecting pipe body 35, it is at position state three, and then the rotating assembly 2 9 drives the turntable 1 7 to rotate 180 degrees to prevent the first welded connecting pipe body 35 from interfering with the feeding of the second connecting pipe body 35, and then repeat the feeding and welding operations of the connecting pipe body 35;

[0063] S7: After the welding operation of the two connecting pipe bodies 35 is completed, the transverse motor 40 is started to move the transverse frame 37 to the position where the sensing frame 43 is located at the slot-type photoelectric switch 1 44. At this time, it is in position state 1, and the oil cooler and the pressing assembly 4 are out of interference state, so that it is convenient to remove the oil cooler after welding.

[0064] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0065] In the description of this article, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil cooler welding processing equipment, comprising an oil cooler body (34), a connecting pipe body (35) and a bottom plate (5), characterized in that: The top of the base plate (5) is provided with a welding fixture assembly (8) for welding the oil cooler body (34) and the connecting pipe body (35) and a welding assembly (3) for welding the spliced ​​oil cooler body (34) and the connecting pipe body (35); the top of the base plate (5) is provided with a loading assembly (1) for loading the connecting pipe body (35) and a clamping assembly (2) for transferring the connecting pipe body (35) on the loading assembly (1) to the welding fixture assembly (8); the top of the base plate (5) is provided with a rotating assembly (1) for driving the clamping assembly (2) to rotate and a rotating assembly (2) for driving the welding fixture assembly (8) to rotate; the top of the base plate (5) and located on one side of the welding fixture assembly (8) is provided with a pressing assembly (4) for pressing and positioning the connecting pipe body (35) on the welding fixture assembly (8); The rotating assembly 1 (6) and the rotating assembly 2 (9) both include a mounting frame 1 (12), the mounting frame 1 (12) is fixedly connected to the top of the base plate (5), the top of the mounting frame 1 (12) is rotatably connected to a connecting shaft (13) via a bearing, the bottom end of the connecting shaft (13) is key-connected to a synchronous pulley 2 (14), the top inner wall of the mounting frame 1 (12) is fixedly connected to a servo motor (11), one end of the output shaft of the servo motor (11) is key-connected to a synchronous pulley 1 (10) connected to the synchronous pulley 2 (14) via a synchronous belt drive; The welding tooling assembly (8) comprises a turntable (7), the turntable (7) being fixedly connected to the top of a connecting shaft (13) on a rotating assembly (9), the top of the turntable (7) being fixedly connected to two guide rails (38), a transverse frame (37) being slidably connected between the two guide rails (38) via a slide, the top of the transverse frame (37) being fixedly connected to a plurality of limiting angle blocks (36) for positioning an oil cooler body (34), the top of the turntable (7) being fixedly connected to a transverse motor ( 40), one end of the output shaft of the transverse motor (40) is fixed with a threaded rod (41) through a coupling, and the threaded rod (41) is rotatably connected to the top of the turntable (7) through a bearing, one side of the threaded rod (41) is threadedly connected with a threaded sleeve (42), and the threaded sleeve (42) is fixed to the transverse frame (37), and a positioning component (39) for switching and positioning the positions of the spliced ​​oil cooler body (34) and the connecting pipe body (35) is provided between the turntable (7) and the transverse frame (37).

2. The oil cooler welding processing equipment according to claim 1, characterized in that: The positioning assembly (39) comprises a sensing frame (43), the sensing frame (43) is fixedly connected to one side of the threaded sleeve (42), and the top of the rotating disk (7) is fixedly connected to a slot-type photoelectric switch (44), a slot-type photoelectric switch (45) and a slot-type photoelectric switch (46).

3. The oil cooler welding processing equipment according to claim 2, characterized in that: The feeding assembly (1) comprises a second mounting frame (16), the second mounting frame (16) being fixedly connected to the top of the bottom plate (5), the top of the second mounting frame (16) being fixedly connected to a feeding hopper (15) and an inclined hopper (17), the inclined hopper (17) being higher than the feeding hopper (15), two guide rails (21) being arranged between the inclined hopper (17) and the feeding hopper (15), a pushing plate (19) being slidably connected between the two guide rails (21) via a slide, and the second mounting frame (16) being fixedly connected to the top of the bottom plate (5), the upper hopper (15) and the inclined hopper (17 ... higher than the upper hopper (15), the two guide rails (21) being provided with a pushing plate (19) being slidably connected to the two guide rails (21) via a slide, and the upper hopper (15) and the upper hopper (15) being fixedly connected to the upper hopper (15) and the upper hopper (15) A feeding cylinder (22) is fixedly connected inside, one end of the piston rod of the feeding cylinder (22) is fixed to the bottom end of the push plate (19), a baffle plate is provided inside the second mounting frame (16), and the baffle plate is in contact with the side wall of the push plate (19) and the bottom of the inclined bucket (17), and a flip assembly (18) for flipping the connecting pipe body (35) for unloading the inclined bucket (17) from a horizontal state to a vertical state is provided on one side of the second mounting frame (16) and below the inclined bucket (17).

4. The oil cooler welding processing equipment according to claim 3, characterized in that: The flip assembly (18) comprises a flip motor (20), the flip motor (20) is fixedly connected inside the second mounting frame (16), one end of the output shaft of the flip motor (20) is fixedly connected to a flip shaft (27), one side of the flip shaft (27) is fixedly connected to a positioning frame (26), a positioning arc groove (24) for positioning a connecting pipe body (35) is provided on the top of the positioning frame (26), baffles (23) for limiting the two ends of the connecting pipe body (35) are provided on both sides of the positioning frame (26), and a side blocking bar (25) for blocking the connecting pipe body (35) is provided at the top of the positioning frame (26).

5. The oil cooler welding processing equipment according to claim 4, characterized in that: The clamping assembly (2) comprises a second turntable (29), the second turntable (29) being fixedly connected to the top end of the connecting shaft (13) on the first rotating assembly (6), a slide groove (32) being provided on both sides of the second turntable (29), a slide frame (33) being slidably connected between the two slide grooves (32), a finger cylinder (30) being fixedly connected to the inner wall of the top of the slide frame (33), a slider of the finger cylinder (30) being provided with a clamping claw (31) for clamping the connecting pipe body (35), a telescopic cylinder (28) being fixedly connected to the top of the second turntable (29), and one end of the piston rod of the telescopic cylinder (28) being fixed to the finger cylinder (30).

6. The oil cooler welding processing equipment according to claim 5, characterized in that: The pressing assembly (4) comprises a mounting frame three (48), the mounting frame three (48) being fixedly connected to the top of the base plate (5), the top of the mounting frame three (48) being fixedly connected to a pressing cylinder (47), one end of a piston rod of the pressing cylinder (47) passing through the mounting frame three (48) and being fixedly connected to a mounting plate (49), the bottom end of the mounting plate (49) being rotatably connected to a rotating shaft (50) via a bearing, the bottom end of the rotating shaft (50) being provided with an embedded block (51) set to the inner diameter of the connecting pipe body (35).

7. The oil cooler welding processing equipment according to claim 6, characterized in that: The pull welding assembly (3) includes a mounting frame four (52), the mounting frame four (52) is fixedly connected to the top of the base plate (5), the top of the mounting frame four (52) is fixedly connected to a mounting seat (53), the top of the mounting seat (53) is fixedly connected to a guide rail three (56), one side of the guide rail three (56) is slidably connected to a connecting frame (55) through a slide, one side of the connecting frame (55) is fixedly connected to a welding gun (57), one end of the mounting seat (53) is fixedly connected to a transverse cylinder (54), and one end of the piston rod of the transverse cylinder (54) is fixed to the connecting frame (55).

8. A processing method for oil cooler welding equipment according to any one of claims 1 to 7, characterized in that: It includes the following steps: S1: First, multiple connecting pipe bodies (35) are placed in the upper hopper (15) for pre-discharging. Then, during welding, the oil cooler body (34) needs to be placed between multiple limiting angle blocks (36) of the welding fixture assembly (8). The position of the oil cooler body (34) has three position states. Position state 1: the induction frame (43) is located at the position of the slot-type photoelectric switch 1 (44). At this time, the oil cooler and the pressing assembly (4) are out of the interference state, so that the oil cooler can be placed and taken out easily. Position state 2: the induction frame (43) is located at the position of the slot-type photoelectric switch 2 (45). At this time, one of the waiting The center line of the welded connecting pipe body (35) coincides with the rotation center line of the turntable one (7) to perform rotation welding; Position state three: the induction frame (43) is located at the position of the slot-shaped photoelectric switch three (46), at which time the center line of another connecting pipe body (35) to be welded coincides with the rotation center line of the turntable one (7) to perform secondary rotation welding, and then the traverse motor (40) is started, the traverse motor (40) rotates to drive the threaded rod (41) to rotate, and the threaded rod (41) rotates to cause the threaded sleeve (42) to drive the traverse frame (37) to move along the guide rail two (38), thereby achieving real-time switching of the three position states; S2: When positioning and loading the connecting pipe body (35), the loading cylinder (22) is started, and the loading cylinder (22) is shortened to drive the push plate (19) to move downward along the guide rail (21) to a suitable position, so that the top of the push plate (19) is located below the connecting pipe body (35), and the connecting pipe body (35) rolls to the top of the push plate (19) under the action of gravity, and then the loading cylinder (22) is extended to drive the push plate (19) to move upward and reset, and the push plate (19) The connecting pipe body (35) at the top rolls down into the inclined bucket (17), and moves along the inclined bucket (17) into the positioning arc groove (24) of the flip assembly (18), and the connecting pipe body (35) is blocked and limited by the side blocking strip (25) and the two baffles (23), and then the flip motor (20) is started, and the flip motor (20) rotates to make the flip shaft (27) drive the positioning frame (26) to rotate 90 degrees, and the connecting pipe body (35) is flipped from the horizontal state to the vertical state; S3: When the connecting pipe body (35) is moved, the telescopic cylinder (28) is started, and the telescopic cylinder (28) is extended to drive the finger cylinder (30) to move outward to a suitable position along the slide groove (32) through the slide frame (33), so that the connecting pipe body (35) in a vertical state after being flipped by the flip assembly (18) is located between the two clamping claws (31), and then the finger cylinder (30) is started and the connecting pipe body (35) is clamped by the clamping claws (31), and then the telescopic cylinder (28) is shortened to drive the finger cylinder (30) and the connecting pipe body (35) to move outward to a suitable position along the slide groove (32) through the slide frame (33). The connecting pipe body (35) is moved inward to reset, and then the turntable (29) is rotated 90 degrees by the rotating assembly (6), and the connecting pipe body (35) is aligned with the horizontal position of the welding hole to be spliced ​​at the top of the oil cooler body (34), and then the telescopic cylinder (28) is started to extend and move the connecting pipe body (35) to the vertical position of the welding hole to be spliced ​​at the top of the oil cooler body (34), and the clamping state of the connecting pipe body (35) is released by the finger cylinder (30), and then the clamping assembly (2) is rotated to reset; S4: When positioning and pressing the connecting pipe body (35), the pressing cylinder (47) is started, and the pressing cylinder (47) is extended to drive the mounting plate (49) to move downward, and the embedding block (51) is inserted into the top of the connecting pipe body (35) and pressed through the rotating shaft (50), thereby effectively preventing the centrifugal force generated by the connecting pipe body (35) during the rotation and pulling welding from causing the position of the connecting pipe body (35) to deviate; S5: When welding one of the connecting pipe bodies (35), it is in position state two, and the lateral cylinder (54) is started. The lateral cylinder (54) is extended and drives the connecting frame (55) to move outward along the guide rail three (56), so that the connecting frame (55) drives the welding gun (57) to move to a suitable position, and the welding head of the welding gun (57) is aligned with the splicing position of the oil cooler body (34) and the connecting pipe body (35), and then the servo motor (11) is started. The rotation of the servo motor (11) drives the synchronous pulley one (10) to rotate, and the rotation of the synchronous pulley one (10) causes the synchronous pulley two (14) to drive the connecting shaft (13) to rotate, thereby completing the welding operation of the first connecting pipe body (35); S6: When welding another connecting pipe body (35), it is at position state three, and then the rotating assembly (2) (9) drives the turntable (7) to rotate 180 degrees to prevent the first connected pipe body (35) that has been welded from interfering with the feeding of the second connected pipe body (35), and then repeat the above-mentioned feeding and welding operations of the connecting pipe body (35); S7: After the welding operation of the two connecting pipe bodies (35) is completed, the transverse movement motor (40) is started to move the transverse movement frame (37) to the position where the induction frame (43) is located at the slot-type photoelectric switch 1 (44). At this time, it is in position state 1, and the oil cooler and the pressing component (4) are out of interference state, so that it is easy to remove the oil cooler after the welding is completed.

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