Auxiliary welding device for condenser production

Abstract

The invention relates to the technical field of condenser production, in particular to an auxiliary welding device for condenser production, which comprises a bottom plate, a pretreatment mechanism comprises a shell, protective shells are mounted at the left end and the right end of the shell, a pushing mechanism is arranged in the shell, and a first motor is fixedly mounted in each protective shell; a first conical barrel and a second conical barrel are fixedly installed on the outer sides of the two discs on the left side and the right side correspondingly, a plurality of first extrusion rollers are installed on the side face of the first conical barrel in a circumferential array mode, and a plurality of second extrusion rollers are installed on the side face of the second conical barrel in a circumferential array mode. According to the auxiliary welding device for condenser production, a first motor works to enable a first extrusion roller and a second extrusion roller to roll on the outer side wall of a steel pipe and the inner wall of a copper pipe correspondingly, along with work of a pushing mechanism, the outer diameter of the steel pipe is compressed, the inner diameter of the copper pipe is enlarged, and the steel pipe and the copper pipe are pre-deformed; and high tensile stress caused by inconsistent deformation after welding is counteracted, and cracking of a brazing seam or a heat affected zone of base metal is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of condenser production, in particular to an auxiliary welding device for condenser production. Background Art

[0002] A condenser is a heat exchange device that cools gaseous substances (usually refrigerants or steam) and condenses them into liquids. It is widely used in refrigeration, air conditioning, heat pumps, power plants (steam turbines), petrochemicals and other industries. Copper is widely used in condensers due to its good thermal conductivity and corrosion resistance. However, in order to save costs, copper pipes are only used in heat exchange areas, and steel pipes are usually used in other areas.

[0003] Steel pipes and copper pipes are usually connected by brazing, but there is a significant difference in the thermal expansion coefficients of steel and copper. When cooling, copper shrinks more, which will generate high tensile stress at the joint, causing cracks in the brazing seam or the heat-affected zone of the parent material, and fatigue failure during long-term thermal cycles.

[0004] In order to solve the above problems, we have made improvements and proposed an auxiliary welding device for condenser production. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides an auxiliary welding device for condenser production, comprising a base plate, a pair of first fixing mechanisms fixedly installed on the middle part of the top end of the base plate, a copper tube is arranged between the pair of first fixing mechanisms, a lateral displacement mechanism is installed on the left and right sides of the top end of the base plate, a second fixing mechanism is fixedly installed on the top end of the lateral displacement mechanism, a steel pipe is arranged inside the second fixing mechanism, a longitudinal displacement mechanism is arranged between the steel pipe and the copper tube, a pretreatment mechanism and a welding device are fixedly installed on the top end of the longitudinal displacement mechanism, the pretreatment mechanism comprises an outer shell, a protective shell is installed on the left and right ends of the outer shell, a pushing mechanism is arranged inside the outer shell, and the output end of the pushing mechanism is fixedly connected to the protective shell, a first motor is fixedly installed inside the protective shell, the output end of the first motor is fixedly connected to a disc, and a first conical barrel and a second conical barrel are fixedly installed on the outer sides of the two discs on the left and right sides respectively, a plurality of first squeezing rollers are installed in a circumferential array on the side surface of the first conical barrel, and a plurality of second squeezing rollers are installed in a circumferential array on the side surface of the second conical barrel.

[0007] As a preferred technical solution of the present invention, the pushing mechanism includes a second motor, and the second motor is fixedly installed at the bottom end of the shell, the output end of the second motor is fixedly connected to a rotating shaft, the upper and lower ends of the rotating shaft are fixedly connected to gears, the front and rear sides of the gear are meshed with racks, and the racks are slidably installed inside the shell, and the racks on the front and rear sides of the gear are respectively fixedly connected to the two protective shells on both sides of the shell.

[0008] As a preferred technical solution of the present invention, a socket is provided in the middle of the shell, and a guide rod is fixedly connected to the end of the protective shell, and the guide rod is provided inside the socket.

[0009] As a preferred technical solution of the present invention, the lateral displacement mechanism includes a first guide rail, and the first guide rail is fixedly installed on the top of the base plate, a first mounting plate is slidably installed on the top of the first guide rail, the bottom end of the first mounting plate is threadedly connected to a first threaded rod, and an electric motor is installed at one end of the first threaded rod.

[0010] As a preferred technical solution of the present invention, the longitudinal displacement mechanism includes a second guide rail, a second mounting plate is slidably installed on the top of the second guide rail, a second threaded rod is rotatably installed in the middle of the second guide rail, and the second threaded rod is threadedly connected to the bottom of the second mounting plate, and an electric motor is installed at one end of the second threaded rod.

[0011] As a preferred technical solution of the present invention, the first fixing mechanism includes a pillar, the top of the pillar is fixedly connected to a first splint, the top of the first splint is hinged to a second splint, the rear side of the second splint is hinged to a connecting nut, the inner side of the connecting nut is threadedly connected to a two-way bolt, the bottom of the two-way bolt is rotatably connected to a movable block, and the movable block is slidably connected to the top of the pillar, the inner sides of the first splint and the second splint are both hinged to fixing belts, and the rear end of the fixing belts is threadedly connected to the two-way bolt.

[0012] As a preferred technical solution of the present invention, the second fixing mechanism includes a first semi-cylinder and a second semi-cylinder, and the first semi-cylinder is fixedly connected to the second semi-cylinder by bolts. Telescopic electric cylinders are fixedly installed on the sides of the first semi-cylinder and the second semi-cylinder, and the output end of the telescopic electric cylinder is arranged inside the second fixing mechanism, and the output end of the telescopic electric cylinder is fixedly connected to a contact piece.

[0013] As a preferred technical solution of the present invention, a pair of fixed plates are fixedly installed in the middle of the top of the second semi-cylinder, and a mounting frame is slidably installed between the pair of fixed plates. The top of the mounting frame is rotatably installed with a first wire wheel through a mounting shaft, and the bottom end of the mounting frame is rotatably installed with a second friction wheel. A second wire wheel is coaxially installed on one side of the second friction wheel, and the second wire wheel is connected to the first wire wheel through a connecting rope. A coil spring is installed on one side of the mounting frame, and the center end of the coil spring is fixedly connected to the mounting shaft.

[0014] As a preferred technical solution of the present invention, a second slider is fixedly connected to the front and rear sides of the mounting frame, and the second slider is slidably connected to the middle part of the fixed plate, and a second spring is provided between the top of the second slider and the fixed plate.

[0015] As a preferred technical solution of the present invention, a column is fixedly connected to the middle of the top of the base plate, a first friction wheel is provided on the top of the column, the front and rear sides of the first friction wheel are rotatably connected to the first slider, and the first slider is slidably connected to the top of the column, and a first spring is provided between the bottom of the first slider and the column.

[0016] The beneficial effects of the present invention are:

[0017] 1. An auxiliary welding device for condenser production, wherein a pushing mechanism pushes a first conical barrel and a second conical barrel toward a steel tube and a copper tube, respectively. A first motor operates to cause first and second extrusion rollers on the first and second conical barrels to roll against the outer wall of the steel tube and the inner wall of the copper tube, respectively. As the diameters of the first and second conical barrels change, the outer diameter of the steel tube is compressed and the inner diameter of the copper tube is expanded, pre-deforming the steel and copper tubes to offset the high tensile stress caused by inconsistent deformation after welding and prevent cracking in the brazing seam or the heat-affected zone of the parent material.

[0018] 2. An auxiliary welding device for condenser production, which passes the steel pipe through the second friction wheel, transfers the connecting rope from the first wire wheel to the second wire wheel, determines the specific length of the steel pipe exposed in the second fixing mechanism, and obtains the specific length of the copper pipe passing through the first friction wheel by determining the number of revolutions of the first friction wheel, and then determines the length of the first friction wheel exposed in the first fixing mechanism, thereby ensuring the accuracy of the pre-deformation amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a front perspective view of an auxiliary welding device for condenser production according to the present invention;

[0021] Figure 2 The present invention is an auxiliary welding device for condenser production Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 It is a rear perspective view of an auxiliary welding device for condenser production according to the present invention;

[0023] Figure 4 The present invention is an auxiliary welding device for condenser production Figure 3 Enlarged view of point B in the middle;

[0024] Figure 5 This is an expanded view of the second fixing mechanism of an auxiliary welding device for condenser production according to the present invention;

[0025] Figure 6 This is a cross-sectional view of a second fixing mechanism of an auxiliary welding device for condenser production according to the present invention;

[0026] Figure 7 This is an expanded view of a pre-treatment mechanism of an auxiliary welding device for condenser production according to the present invention;

[0027] Figure 8 This is a cross-sectional view of a pretreatment mechanism of an auxiliary welding device for condenser production according to the present invention;

[0028] In the figure: 1. Base plate; 2. First guide rail; 3. First mounting plate; 4. First threaded rod; 5. Post; 6. First slider; 7. First spring; 8. First friction wheel; 9. Second guide rail; 10. Second mounting plate; 11. Second threaded rod; 12. First fixing mechanism; 13. Second fixing mechanism; 14. Welding equipment; 15. First clamping plate; 16. Second clamping plate; 17. Connecting nut; 18. Movable block; 19. Two-way bolt; 20. Fixing belt; 21. First semi-cylinder; 22. Second semi-cylinder; 23. Telescopic electric cylinder; 24. Contact piece; 25. Coil spring; 26. Fixed plate; 27. Mounting frame; 28. First wire pulley; 29. ​​Second friction wheel; 30. Second wire pulley; 31. Second slider; 32. Second spring; 33. Housing; 34. Protective shell; 35. First motor; 36. Disc; 37. First cone barrel; 38. First squeezing roller; 39. Second cone barrel; 40. Second squeezing roller; 41. Guide rod; 42. Second motor; 43. Rotating shaft; 44. Gear; 45. Rack; 46. Jack; 47. Pillar. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Example: Figures 1-8As shown, an auxiliary welding device for condenser production includes a base plate 1, a pair of first fixing mechanisms 12 are fixedly installed in the middle of the top of the base plate 1, a copper tube is arranged between the pair of first fixing mechanisms 12, a lateral displacement mechanism is installed on both the left and right sides of the top of the base plate 1, a second fixing mechanism 13 is fixedly installed on the top of the lateral displacement mechanism, a steel tube is arranged inside the second fixing mechanism 13, a longitudinal displacement mechanism is arranged between the steel tube and the copper tube, a pretreatment mechanism and a welding device 14 are fixedly installed on the top of the longitudinal displacement mechanism, the pretreatment mechanism includes a shell 33, a protective shell 34 is installed on both the left and right ends of the shell 33, a pushing mechanism is arranged inside the shell 33, and the output end of the pushing mechanism is connected to the protective shell 34. The protective shell 34 is fixedly connected. A first motor 35 is fixedly installed inside the protective shell 34. The output end of the first motor 35 is fixedly connected to a disc 36. The outer sides of the two discs 36 on the left and right sides are respectively fixedly installed with a first cone barrel 37 and a second cone barrel 39. A plurality of first squeezing rollers 38 are installed in a circumferential array on the side of the first cone barrel 37. A plurality of second squeezing rollers 40 are installed in a circumferential array on the side of the second cone barrel 39. The taper of the first cone barrel 37 and the second cone barrel 39 is 2°-4°. The end of the first cone barrel 37 expands outward, and the end of the second cone barrel 39 shrinks inward. The first squeezing roller 38 protrudes from the inner wall of the first cone barrel 37, and the second squeezing roller 40 protrudes from the outer wall of the second cone barrel 39. The pre-deformation amount of the steel pipe and the copper pipe is based on:

[0031] δ=(α cu -α steel )×L×(ΔT max -T room )×K safe

[0032] Among them, α cu and α steel are the thermal expansion coefficients of copper and iron respectively, L is the length from the center of the weld to the nearest fixed point, ΔT is the welding temperature gradient, K safe Take 1.1 to 1.3 (compensation for springback), and keep the deformation within the elastic deformation range of copper and steel pipes;

[0033] The copper tube is fixed to the device through the first fixing mechanism 12, and the steel tube is fixed to the lateral displacement mechanism through the second fixing mechanism 13. The longitudinal displacement mechanism sends the pretreatment mechanism to between the steel tube and the copper tube. The first cone barrel 37 is opposite to the steel tube, and the second cone barrel 39 is opposite to the copper tube. The first motors 35 on both sides start working to rotate the first cone barrel 37 and the second cone barrel 39. The pushing mechanism pushes the first cone barrel 37 and the second cone barrel 39 toward the steel tube and the copper tube respectively. The rotating first cone barrel 37 and the second cone barrel 39 make the first squeezing roller 38 and the second squeezing roller 40 roll on the outer wall of the steel tube and the inner wall of the copper tube respectively. As the first cone barrel 37 The diameter of the second conical barrel 39 changes, the outer diameter of the steel pipe is compressed, and the inner diameter of the copper pipe is expanded, and the steel pipe and the copper pipe are pre-deformed to offset the high tensile stress caused by inconsistent deformation after welding, avoid cracking of the brazing seam or the heat-affected zone of the base material, and after the steel pipe and the copper pipe are pre-deformed, the gap between the steel pipe and the copper pipe becomes larger, so that the brazing material can better enter between the steel pipe and the copper pipe. After the pre-deformation treatment of the steel pipe and the copper pipe is completed, the longitudinal displacement mechanism works to change the position of the welding equipment 14 and the pretreatment mechanism, and the transverse displacement mechanism moves toward the copper pipe, inserts the steel pipe into the copper pipe for a certain distance, and then the welding equipment 14 performs the welding operation.

[0034] For further reference, Figure 7 and Figure 8 The pushing mechanism includes a second motor 42, and the second motor 42 is fixedly mounted on the bottom end of the shell 33. The output end of the second motor 42 is fixedly connected to the rotating shaft 43. The upper and lower ends of the rotating shaft 43 are fixedly connected to the gear 44. The front and rear sides of the gear 44 are meshed with racks 45, and the racks 45 are slidably mounted inside the shell 33. The racks 45 on the front and rear sides of the gear 44 are respectively fixedly connected to the two protective shells 34 on both sides of the shell 33. A worm gear reduction mechanism is provided inside the second motor 42. The second motor 42 drives the rotating shaft 43 to rotate, and then the gear 44 rotates. The rotating gear 44 drives the rack 45 to slide to both sides inside the shell 33, thereby pushing the protective shells 34 on both sides to move outward.

[0035] For further reference, Figure 8 A socket 46 is provided in the middle of the outer shell 33, and a guide rod 41 is fixedly connected to the end of the protective shell 34, and the guide rod 41 is provided inside the socket 46. When the protective shell 34 moves outward, the guide rod 41 slides inside the socket 46 to maintain the stability of the movement of the protective shell 34 and to keep the first cone barrel 37 and the second cone barrel 39 facing the steel pipe and the copper pipe.

[0036] Preferably, reference Figure 1The lateral displacement mechanism includes a first guide rail 2, and the first guide rail 2 is fixedly installed on the top of the base plate 1. A first mounting plate 3 is slidably installed on the top of the first guide rail 2. The bottom end of the first mounting plate 3 is threadedly connected to a first threaded rod 4, and one end of the first threaded rod 4 is installed with a motor. The motor drives the first threaded rod 4 to rotate. The rotating first threaded rod 4 moves on the first guide rail 2 through the threaded drive of the first mounting plate 3, which can push the steel pipe toward the copper pipe.

[0037] Preferably, reference Figure 3 The longitudinal displacement mechanism includes a second guide rail 9, a second mounting plate 10 is slidably installed on the top of the second guide rail 9, a second threaded rod 11 is rotatably installed in the middle of the second guide rail 9, and the second threaded rod 11 is threadedly connected to the bottom of the second mounting plate 10, and a motor is installed at one end of the second threaded rod 11. The second guide rail 9 is arched to avoid interference between the second mounting plate 10 and the first mounting plate 3. The motor drives the second threaded rod 11 to rotate, and the rotating second threaded rod 11 drives the second mounting plate 10 to slide on the top of the second guide rail 9 through the thread, changing the position of the pretreatment mechanism and the welding equipment 14.

[0038] Preferably, reference Figure 3 and Figure 4 The first fixing mechanism 12 includes a pillar 47, the top of the pillar 47 is fixedly connected to the first splint 15, the top of the first splint 15 is hinged to the second splint 16, the rear side of the second splint 16 is hinged to a connecting nut 17, the inner side of the connecting nut 17 is threadedly connected to a two-way bolt 19, the bottom of the two-way bolt 19 is rotatably connected to a movable block 18, and the movable block 18 is slidably connected to the top of the pillar 47, the inner sides of the first splint 15 and the second splint 16 are both hinged with a fixing belt 20, and the rear end of the fixing belt 20 is threadedly connected to the two-way bolt 19, the two fixing belts 20 are respectively arranged on both sides of the copper tube, and the two-way bolt 19 is rotated to close the second splint 16 and the first splint 15, and in the process of rotating the two-way bolt 19, the ends of the two fixing belts 20 are close to each other, and the copper tube is fixed for the second time.

[0039] Specifically, refer to Figure 5 and Figure 6 The second fixing mechanism 13 includes a first semi-cylinder 21 and a second semi-cylinder 22, and the first semi-cylinder 21 is fixedly connected to the second semi-cylinder 22 by bolts. The sides of the first semi-cylinder 21 and the second semi-cylinder 22 are fixedly installed with telescopic electric cylinders 23, and the output end of the telescopic electric cylinder 23 is arranged inside the second fixing mechanism 13. The output end of the telescopic electric cylinder 23 is fixedly connected with a contact piece 24. The first semi-cylinder 21 and the second semi-cylinder 22 are initially fixed with bolts, and then the telescopic electric cylinder 23 works to push the contact piece 24 toward the steel pipe. Multiple contact pieces 24 contact the surface of the steel pipe, and multiple pairs of steel pipes are fixed for the second time.

[0040] For further reference, Figure 5 and Figure 6 A pair of fixed plates 26 are fixedly installed in the middle of the top of the second semi-cylinder 22, and a mounting frame 27 is slidably installed between the pair of fixed plates 26. The top of the mounting frame 27 is rotatably installed with a first wire wheel 28, and the bottom end of the mounting frame 27 is rotatably installed with a second friction wheel 29. The side of the second friction wheel 29 has a certain curvature. A second wire wheel 30 is coaxially installed on one side of the second friction wheel 29, and the second wire wheel 30 is connected to the first wire wheel 28 through a connecting rope. The length of the connecting rope is fixed, and a coil spring 25 is installed on one side of the mounting frame 27, and the end of the coil spring 25 at the center is fixedly connected to the mounting shaft. The front and rear sides of the mounting frame 27 are fixedly connected with a second slider 31, and the second slider 31 is slidably connected to the middle of the fixed plate 26. The top of the second slider 31 A second spring 32 is arranged between the fixing plate 26, and the second friction wheel 29 is close to the center position of the second fixing mechanism 13. The steel pipe is inserted from one end of the second fixing mechanism 13 and then comes out from the other end. During this process, the second friction wheel 29 rotates, and then the connecting rope on the first wire wheel 28 is wound around the second wire wheel 30 until the connecting rope on the first wire wheel 28 is completely released. It can be used to determine the specific length of the steel pipe moving toward the copper pipe after passing through the second friction wheel 29, and then determine the specific length of the steel pipe exposed in the second fixing mechanism 13, thereby ensuring the accuracy of the pre-deformation. The second spring 32 pushes the second slider 31 so that the second friction wheel 29 can fully contact the outer surface of the steel pipe, and the coil spring 25 is used to rewind the connecting rope around the first wire wheel 28.

[0041] Preferably, reference Figure 1 and Figure 2 A column 5 is fixedly connected to the middle part of the top of the bottom plate 1, and a first friction wheel 8 is provided on the top of the column 5. The front and rear sides of the first friction wheel 8 are rotatably connected to the first slider 6, and the first slider 6 is slidably connected to the top of the column 5. A first spring 7 is provided between the bottom of the first slider 6 and the column 5. A counter is installed on one side of the first friction wheel 8 for counting the number of rotations of the first friction wheel 8. The copper tube is inserted from one first fixing mechanism 12 to another first fixing mechanism 12, passes through the first friction wheel 8, and the moving copper tube drives the first friction wheel 8 to rotate. By determining the number of rotations of the first friction wheel 8, the specific length of the copper tube passing through the first friction wheel 8 is obtained, and then the length of the first friction wheel 8 exposed in the first fixing mechanism 12 is determined, thereby ensuring the accuracy of the pre-deformation.

[0042] Working principle: The copper tube is inserted from one first fixing mechanism 12 to the other first fixing mechanism 12 and passes through the first friction wheel 8. The moving copper tube drives the first friction wheel 8 to rotate. By determining the number of revolutions of the first friction wheel 8, the specific length of the copper tube passing through the first friction wheel 8 is obtained. The length of the copper tube exposed at both ends is made the same, and then the copper tube is fixed by the first fixing mechanism 12.

[0043] The steel pipe is inserted from one end of the second fixing mechanism 13 and then comes out from the other end. During this process, the second friction wheel 29 rotates, thereby winding the connecting rope on the first wire wheel 28 onto the second wire wheel 30 until the connecting rope on the first wire wheel 28 is completely released. This can be used to determine the specific length of the steel pipe moving toward the copper pipe after passing through the second friction wheel 29, and then determine the specific length of the steel pipe exposed in the second fixing mechanism 13. The steel pipe is then fixed by the second fixing mechanism 13;

[0044] The longitudinal displacement mechanism sends the pretreatment mechanism to between the steel pipe and the copper pipe. The first cone barrel 37 is opposite to the steel pipe, and the second cone barrel 39 is opposite to the copper pipe. The first motors 35 on both sides start working to rotate the first cone barrel 37 and the second cone barrel 39. The second motor 42 drives the rotating shaft 43 to rotate, thereby rotating the gear 44. The rotating gear 44 drives the rack 45 to slide to both sides inside the shell 33, thereby pushing the protective shells 34 on both sides to move outward, pushing the first cone barrel 37 and the second cone barrel 39 toward the steel pipe and the copper pipe respectively. The rotating first cone barrel 37 and the second cone barrel 39 cause the first squeezing roller 38 and the second squeezing roller 40 to roll on the outer wall of the steel pipe and the inner wall of the copper pipe respectively. As the diameters of the first cone barrel 37 and the second cone barrel 39 change, the outer diameter of the steel pipe is compressed and the inner diameter of the copper pipe is expanded, thereby performing pre-deformation treatment on the steel pipe and the copper pipe.

[0045] After the pre-deformation treatment of the steel pipe and the copper pipe is completed, the longitudinal displacement mechanism works to change the position of the welding equipment 14 and the pre-treatment mechanism, and the transverse displacement mechanism moves toward the copper pipe, inserting the steel pipe into the copper pipe for a certain distance, and then the welding equipment 14 performs the welding operation.

[0046] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An auxiliary welding device for condenser production, comprising a base plate (1), characterized in that: A pair of first fixing mechanisms (12) are fixedly installed at the middle of the top of the bottom plate (1), and a copper tube is provided between the pair of first fixing mechanisms (12). Transverse displacement mechanisms are installed on both the left and right sides of the top of the bottom plate (1). A second fixing mechanism (13) is fixedly installed on the top of the transverse displacement mechanism. A steel tube is provided inside the second fixing mechanism (13). A longitudinal displacement mechanism is provided between the steel tube and the copper tube. A pre-treatment mechanism and a welding device (14) are fixedly installed on the top of the longitudinal displacement mechanism. The pre-treatment mechanism includes a shell (33). The left and right ends of the shell (33) are both installed with A protective shell (34) is provided inside the outer shell (33), and a pushing mechanism is fixedly connected to the protective shell (34); a first motor (35) is fixedly installed inside the protective shell (34); a disc (36) is fixedly connected to the output end of the first motor (35); a first cone barrel (37) and a second cone barrel (39) are fixedly installed on the outer sides of the two discs (36) on the left and right sides respectively; a plurality of first squeezing rollers (38) are installed in a circumferential array on the side of the first cone barrel (37); and a plurality of second squeezing rollers (40) are installed in a circumferential array on the side of the second cone barrel (39).

2. The auxiliary welding device for condenser production according to claim 1, characterized in that: The pushing mechanism includes a second motor (42), and the second motor (42) is fixedly installed at the bottom end of the shell (33). The output end of the second motor (42) is fixedly connected to a rotating shaft (43). The upper and lower ends of the rotating shaft (43) are fixedly connected to gears (44). The front and rear sides of the gear (44) are meshed with racks (45), and the racks (45) are slidably installed inside the shell (33). The racks (45) on the front and rear sides of the gear (44) are respectively fixedly connected to the two protective shells (34) on both sides of the shell (33).

3. The auxiliary welding device for condenser production according to claim 1, characterized in that: A socket (46) is provided in the middle of the housing (33), and a guide rod (41) is fixedly connected to the end of the protective shell (34), and the guide rod (41) is provided inside the socket (46).

4. The auxiliary welding device for condenser production according to claim 1, characterized in that: The lateral displacement mechanism comprises a first guide rail (2), and the first guide rail (2) is fixedly mounted on the top of the base plate (1); a first mounting plate (3) is slidably mounted on the top of the first guide rail (2); a first threaded rod (4) is threadedly connected to the bottom end of the first mounting plate (3); and a motor is mounted on one end of the first threaded rod (4).

5. The auxiliary welding device for condenser production according to claim 1, characterized in that: The longitudinal displacement mechanism comprises a second guide rail (9), a second mounting plate (10) is slidably mounted on the top of the second guide rail (9), a second threaded rod (11) is rotatably mounted on the middle of the second guide rail (9), and the second threaded rod (11) is threadedly connected to the bottom of the second mounting plate (10), and a motor is mounted on one end of the second threaded rod (11).

6. The auxiliary welding device for condenser production according to claim 1, characterized in that: The first fixing mechanism (12) includes a pillar (47), the top of the pillar (47) is fixedly connected to a first clamping plate (15), the top of the first clamping plate (15) is hinged to a second clamping plate (16), the rear side of the second clamping plate (16) is hinged to a connecting nut (17), the inner side of the connecting nut (17) is threadedly connected to a two-way bolt (19), the bottom of the two-way bolt (19) is rotatably connected to a movable block (18), and the movable block (18) is slidably connected to the top of the pillar (47), the inner sides of the first clamping plate (15) and the second clamping plate (16) are both hinged to a fixing belt (20), and the rear end of the fixing belt (20) is threadedly connected to the two-way bolt (19).

7. The auxiliary welding device for condenser production according to claim 1, characterized in that: The second fixing mechanism (13) comprises a first semi-cylinder (21) and a second semi-cylinder (22), and the first semi-cylinder (21) is fixedly connected to the second semi-cylinder (22) by bolts. A telescopic electric cylinder (23) is fixedly mounted on the side surfaces of the first semi-cylinder (21) and the second semi-cylinder (22), and the output end of the telescopic electric cylinder (23) is arranged inside the second fixing mechanism (13). The output end of the telescopic electric cylinder (23) is fixedly connected to a contact piece (24).

8. The auxiliary welding device for condenser production according to claim 7, characterized in that: A pair of fixing plates (26) are fixedly installed at the middle of the top end of the second semi-cylinder (22), and a mounting frame (27) is slidably installed between the pair of fixing plates (26). A first wire wheel (28) is rotatably installed on the top end of the mounting frame (27) through a mounting shaft, and a second friction wheel (29) is rotatably installed on the bottom end of the mounting frame (27). A second wire wheel (30) is coaxially installed on one side of the second friction wheel (29), and the second wire wheel (30) is connected to the first wire wheel (28) through a connecting rope. A coil spring (25) is installed on one side of the mounting frame (27), and one end of the coil spring (25) at the center is fixedly connected to the mounting shaft.

9. The auxiliary welding device for condenser production according to claim 8, characterized in that: The front and rear sides of the mounting frame (27) are both fixedly connected with a second slider (31), and the second slider (31) is slidably connected to the middle part of the fixed plate (26), and a second spring (32) is provided between the top of the second slider (31) and the fixed plate (26).

10. The auxiliary welding device for condenser production according to claim 1, characterized in that: A column (5) is fixedly connected to the middle of the top of the base plate (1), a first friction wheel (8) is provided on the top of the column (5), and a first slider (6) is rotatably connected to the front and rear sides of the first friction wheel (8), and the first slider (6) is slidably connected to the top of the column (5), and a first spring (7) is provided between the bottom of the first slider (6) and the column (5).

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