Automatic welding equipment for profile production

Abstract

The invention relates to the technical field of welding equipment, in particular to automatic welding equipment for profile production, which comprises a supporting part, guide parts are fixedly mounted at two ends of the supporting part, a profile is placed at the inner bottom end, close to the guide parts, of the supporting part, and each guide part comprises an aligning device and a collecting device. The alignment device comprises a first rack, a special-shaped support and a front end plate, the first rack is fixedly installed at one end of the special-shaped support, the special-shaped support is fixedly installed at the side end of the front end plate, a guide rod is fixedly installed at the side end, away from the first rack, of the front end plate, and a displacement plate slidably sleeves the outer ring of the top end, away from the front end plate, of the guide rod. A first spring is fixedly installed between the displacement plate and the front end plate, a pushing plate is fixedly installed at the top end of the displacement plate, and the collecting device comprises a lead screw, a driving motor and a concentrating cavity. And through the arrangement of the guide component and the supporting component, the purposes of alignment adaptation and automatic welding of the profile welding equipment are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to an automatic welding equipment for profile production. Background Art

[0002] Profiles refer to solid straight bars of metal that have been formed through plastic processing and have a certain cross-sectional shape and size. Profiles have a wide variety of specifications and uses, and they play a very important role in rolling production.

[0003] Profile welding equipment is used to weld various profiles (such as square tubes, round tubes, aluminum profiles, etc.). The working principle of profile welding equipment is mainly based on the heating effect of welding heat source. During welding, the heat source heats the material in the welding area to a molten state, and then through the filling material (such as welding rod, welding wire, etc.) or without the filling material, two or more metal parts are fused with each other in a molten state to form a solid weld.

[0004] At present, when the profile welding equipment on the market is in use, it needs to rely on external equipment and workers to load the materials, so the profiles need equipment assistance when they are docked and adapted. Therefore, the existing profiles often need to go through multiple steps to be spliced ​​and welded, which makes the existing profile welding equipment unable to perform profile alignment and automatic welding. Therefore, a device is needed to improve the above problem. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides an automated welding device for profile production.

[0006] The technical solution adopted by the present invention to solve its technical problems is: an automated welding equipment for profile production, comprising a supporting component, guide components are fixedly installed at both ends of the supporting component, and a profile is placed on the supporting component near the inner bottom end of the guide component, the guide component comprises an alignment device and a collecting device, the alignment device comprises a first rack, a special-shaped bracket and a front end plate, the first rack is fixedly installed at one end of the special-shaped bracket, the special-shaped bracket is fixedly installed on the side end of the front end plate, a guide rod is fixedly installed at the side end of the front end plate away from the first rack, a displacement plate is slidably sleeved on the top outer ring of the guide rod away from the front end plate, a first spring is fixedly installed between the displacement plate and the front end plate, and a pushing plate is fixedly installed on the top end of the displacement plate, the collecting device comprises a screw rod, a driving motor and a central cavity, the driving motor is fixedly installed at one end of the bottom of the central cavity, and the screw rod is fixedly installed at the side end center of the driving motor.

[0007] Specifically, the supporting component includes a contact device, a reset device, a side frame and a supporting base plate. The contact device is symmetrically slidably inserted into the top and bottom ends of the reset device, the side frame is fixedly installed on both sides of the reset device, and the supporting base plate is symmetrically fixedly installed at one end of the side frame away from the contact device.

[0008] Specifically, the contact device includes an extension bracket, a sliding key, a support plate, a rotating shaft and a welding gun, the sliding keys are fixedly installed at the two ends of the top of the support plate, the extension bracket is symmetrically fixedly installed at the top of the support plate, and the extension bracket is located between the two sliding keys, the rotating shaft is rotatably installed inside the front end of the extension bracket, the welding gun is fixedly installed between the two rotating shafts, the side end of the rotating shaft away from the welding gun is fixedly installed with a first gear, the front bottom of the front end of the extension bracket is fixedly installed with a front baffle, the interior of the rotating shaft is slidably plugged with two vertical rods, and the bottom end of the vertical rod is fixed A matching key is fixedly installed, two second springs are fixedly installed between the matching key and the rotating shaft, and the second spring is located at the outer ring of the vertical rod, a magnetic attraction plate is fixedly installed on the side end of the rotating shaft close to the front baffle, a special-shaped gas cylinder is fixedly installed on the side end of the magnetic attraction plate close to the vertical rod, a second piston rod is slidably inserted in the end of the special-shaped gas cylinder away from the vertical rod, a third spring is fixedly installed between the second piston rod and the special-shaped gas cylinder, a first piston rod is slidably inserted in the end of the special-shaped gas cylinder close to the vertical rod, and a positioning baffle is fixedly installed on the end of the first piston rod close to the first gear;

[0009] When the support plate is displaced, it can drive the first gear to pass the top end of the second rack, so that the welding gun can drive the matching key to rotate until the positioning baffle is tilted and aligned.

[0010] Specifically, the reset device includes a supporting rear plate, a front end bracket and a fourth spring, the front end bracket is symmetrically fixedly installed on the top and bottom of the side end of the supporting rear plate, the fourth spring is fixedly installed on the top and bottom of the side end of the supporting rear plate close to the front end bracket, and the fourth spring is located at the inner center of the front end bracket, the end of the fourth spring away from the supporting rear plate is fixedly installed with a connecting plate, the end of the front end bracket close to the connecting plate is fixedly installed with an alignment plate, the top of the front end bracket away from the supporting rear plate is symmetrically fixedly installed with a second rack, the front end bracket is rotatably installed with a second gear near the top center of the second rack, a winding wheel is fixedly installed at the top center of the second gear, and a connecting rope is fixedly installed between the connecting plate and the winding wheel;

[0011] When the second gear rotates, the connecting plate can be pulled and moved by the connecting rope, so that the connecting plate can drive the contact device to move as a whole.

[0012] Specifically, the displacement plate is slidably inserted into the bottom end of the central cavity, the front end plate is threadedly sleeved on the screw rod, the central cavity is fixedly mounted on one end of the side frame close to the supporting bottom plate, the sliding key is slidably inserted into the front end bracket, and the support plate is fixedly mounted on the side end of the connecting plate away from the fourth spring.

[0013] Specifically, the tooth distribution angle of the first gear is 30°, and the first gear is vertically aligned with the second rack, and a movable groove is opened at the center of the bottom end of the concentrated cavity.

[0014] Specifically, through holes are provided at the bottoms of both ends of the concentrated cavity, and the thickness of the pushing plate is the same as the height of the through holes. A groove is provided inside the top end of the positioning baffle away from the third spring.

[0015] Specifically, the bottom of the side end of the mating key is inclined at 45° away from the magnetic attraction plate, the interior of the special-shaped gas cylinder is hollow, and a closed cavity is formed between the first piston rod, the special-shaped gas cylinder and the second piston rod.

[0016] Specifically, circular gaskets are fixedly installed on one end of the special-shaped air cylinder close to the second piston rod and the other end of the second piston rod away from the special-shaped air cylinder, and the third spring is fixedly installed between the two circular gaskets, the alignment plate is horizontally aligned with the second piston rod, a slot is provided on the opposite inner side of the front end bracket, and the sliding key is slidably inserted into the inside of the slot.

[0017] Specifically, the supporting base plate further comprises a hydraulic cylinder and a blocking plate, wherein the hydraulic cylinder is fixedly mounted on the bottom end of the supporting base plate, and the blocking plate is fixedly mounted on the side end of the hydraulic cylinder.

[0018] Beneficial effects of the present invention:

[0019] First, when the driving motor of the present invention is started, it can drive the screw to rotate, so that the front end plate can drive the pushing plate to move inside the concentrated cavity, so that the pushing plate can push the profile to the outside of the concentrated cavity until it is completely fitted. At the same time, when the front end plate continues to move, it can drive the first rack to pass through the second gear, so that the second gear can drive the connecting plate to move, and when the screw rotates in the opposite direction, it can drive the pushing plate to move to the rear end, so that it is convenient to push the profile inside the concentrated cavity again.

[0020] Secondly, when the second gear of the present invention rotates, the connecting plate can be pulled by the connecting rope to drive the welding gun to move toward one end close to the profile, so that the welding gun can pass through the surface of the profile for welding. At the same time, when the welding gun moves to the front end, the welding gun can be rotated to a specified angle, thereby avoiding the welding gun from contacting the surface of the profile again when the welding gun is reset, and when the welding gun is completely reset, the welding gun can be rotated to a vertical state again, thereby facilitating the welding gun to weld the profile again and completing the automated welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the guide component in the present invention from a front perspective;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the alignment device in the present invention from a front perspective;

[0025] Figure 4 It is a partial cutaway schematic diagram of the collecting device in the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the support component in the present invention from a front perspective;

[0027] Figure 6 It is a partial cutaway schematic diagram of the contact device in the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the contact device in the present invention from a rear perspective;

[0029] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram in the middle;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the reset device in the present invention from the front perspective;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the support base plate in the present invention.

[0032] In the figure: 1-guide component, 2-support component, 3-profile, 4-alignment device, 5-collection device, 6-first rack, 7-special-shaped bracket, 8-first spring, 9-push plate, 10-guide rod, 11-displacement plate, 12-front end plate, 13-screw rod, 14-drive motor, 15-central cavity, 16-contact device, 17-reset device, 18-side frame, 19-support bottom plate, 20-front baffle, 21-welding gun, 22-first gear, 23-support plate, 24-slide key , 25-extension bracket, 26-rotating shaft, 27-vertical rod, 28-second spring, 29-matching key, 30-positioning baffle, 31-first piston rod, 32-special-shaped air cylinder, 33-second piston rod, 34-third spring, 35-magnetic plate, 36-connecting rope, 37-winding wheel, 38-second gear, 39-second rack, 40-alignment plate, 41-support rear plate, 42-fourth spring, 43-front end bracket, 44-connecting plate, 45-hydraulic cylinder, 46-blocking plate. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0034] The present invention is further described below in conjunction with the accompanying drawings.

[0035] Example 1

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an automatic welding equipment for profile production of the present invention includes a supporting component 2, guide components 1 are fixedly installed at both ends of the supporting component 2, a profile 3 is placed on the inner bottom end of the supporting component 2 near the guide component 1, the guide component 1 includes a positioning device 4 and a collecting device 5, the positioning device 4 includes a first rack 6, a special-shaped bracket 7 and a front end plate 12, the first rack 6 is fixedly installed at one end of the special-shaped bracket 7, the special-shaped bracket 7 is fixedly installed on the side end of the front end plate 12, a guide rod 10 is fixedly installed on the side end of the front end plate 12 away from the first rack 6, the guide rod 10 is slidably sleeved on the top outer ring away from the front end plate 12, a first spring 8 is fixedly installed between the displacement plate 11 and the front end plate 12, a pushing plate 9 is fixedly installed on the top of the displacement plate 11, the collecting device 5 includes a screw 13, a drive motor 14 and a central cavity 15, the drive motor 14 is fixedly installed at one end of the bottom of the central cavity 15, and the screw 13 is fixedly installed at the side end center of the drive motor 14.

[0037] like Figure 5 The supporting component 2 includes a contact device 16, a reset device 17, a side frame 18 and a supporting base plate 19. The contact device 16 is symmetrically slidably inserted into the top and bottom ends of the reset device 17. The side frame 18 is fixedly installed on both sides of the reset device 17. The supporting base plate 19 is symmetrically fixedly installed at one end of the side frame 18 away from the contact device 16, which can support the profile 3 for placement and docking.

[0038] like Figure 6 , Figure 7 and Figure 8The contact device 16 includes an extension bracket 25, a sliding key 24, a support plate 23, a rotating shaft 26 and a welding gun 21. The sliding keys 24 are fixedly installed at the two ends of the top of the support plate 23. The extension bracket 25 is symmetrically fixedly installed at the top of the support plate 23, and the extension bracket 25 is located between the two sliding keys 24. The rotating shaft 26 is rotatably installed inside the front end of the extension bracket 25. The welding gun 21 is fixedly installed between the two rotating shafts 26. The side end of the rotating shaft 26 away from the welding gun 21 is fixedly installed with a first gear 22. The front bottom of the extension bracket 25 is fixedly installed with a front baffle 20. Two vertical rods 27 are slidably inserted inside the rotating shaft 26. The bottom end of the vertical rod 27 is fixedly installed with a matching key 29. Two second springs are fixedly installed between the matching key 29 and the rotating shaft 26. 28, and the second spring 28 is located at the outer ring of the vertical rod 27, a magnetic plate 35 is fixedly installed on the side end of the rotating shaft 26 close to the front baffle 20, a special-shaped gas cylinder 32 is fixedly installed on the side end of the magnetic plate 35 close to the vertical rod 27, a second piston rod 33 is slidably inserted in the end of the special-shaped gas cylinder 32 away from the vertical rod 27, a third spring 34 is fixedly installed between the second piston rod 33 and the special-shaped gas cylinder 32, a first piston rod 31 is slidably inserted in the end of the special-shaped gas cylinder 32 close to the vertical rod 27, a positioning baffle 30 is fixedly installed on the end of the first piston rod 31 close to the first gear 22, a square hole is opened in the end of the positioning baffle 30 away from the extension bracket 25, and the square hole is communicated with the groove inside the positioning baffle 30, so that the mating key 29 can be easily moved out;

[0039] When the support plate 23 is displaced, it can drive the first gear 22 to pass the top end of the second rack 39 , so that the welding gun 21 can drive the matching key 29 to rotate until the positioning baffle 30 is tilted and aligned.

[0040] like Fig. 9 The reset device 17 includes a supporting rear plate 41, a front end bracket 43 and a fourth spring 42, the front end bracket 43 is symmetrically fixedly mounted on the top and bottom of the side end of the supporting rear plate 41, the fourth spring 42 is fixedly mounted on the top and bottom of the side end of the supporting rear plate 41 near the front end bracket 43, and the fourth spring 42 is located at the inner center of the front end bracket 43, the fourth spring 42 is fixedly mounted on the end of the fourth spring 42 away from the supporting rear plate 41, and the alignment plate 40 is fixedly mounted on the end of the front end bracket 43 close to the connecting plate 44, and the second rack 39 is symmetrically fixedly mounted on the top of the front end bracket 43 away from the supporting rear plate 41, and the second gear 38 is rotatably mounted on the top center of the front end bracket 43 near the second rack 39, and the winding wheel 37 is fixedly mounted on the top center of the second gear 38, and a connecting rope 36 is fixedly mounted between the connecting plate 44 and the winding wheel 37, and a reset spring is arranged through the end of the connecting plate 44 away from the fourth spring 42, so that the reset spring can drive the welding gun 21 to reset when the matching key 29 loses the restriction of the positioning baffle 30;

[0041] When the second gear 38 rotates, the connecting plate 44 can be pulled and moved by the connecting rope 36 , so that the connecting plate 44 can drive the contact device 16 to move as a whole.

[0042] The displacement plate 11 is slidably inserted into the bottom end of the concentrated cavity 15, the front end plate 12 is threadedly sleeved on the screw rod 13, the concentrated cavity 15 is fixedly installed on one end of the side frame 18 close to the support bottom plate 19, the sliding key 24 is slidably inserted into the interior of the front end bracket 43, the support plate 23 is fixedly installed on the side end of the connecting plate 44 away from the fourth spring 42, the tooth distribution angle on the first gear 22 is 30°, and the first gear 22 is vertically aligned with the second rack 39, a movable groove is opened at the center of the bottom end of the concentrated cavity 15, through holes are opened at the bottom of both ends of the concentrated cavity 15, and the thickness of the push plate 9 is the same as the height of the through hole, and the positioning baffle 30 is away from A groove is provided inside the top end of the third spring 34, and the matching key 29 is inclined at 45° away from the bottom of the side end of the magnetic attraction plate 35. The interior of the special-shaped air cylinder 32 is provided in a hollow state, and a closed cavity is formed between the first piston rod 31, the special-shaped air cylinder 32 and the second piston rod 33. Circular gaskets are fixedly installed on one end of the special-shaped air cylinder 32 close to the second piston rod 33 and the end of the second piston rod 33 away from the special-shaped air cylinder 32, and the third spring 34 is fixedly installed between the two circular gaskets. The alignment plate 40 is horizontally aligned with the second piston rod 33, and a slot is provided on the inner side opposite to the front end bracket 43, and the sliding key 24 is slidably inserted into the inside of the slot.

[0043] The working principle of Example 1 is as follows: when in use, the profiles 3 are first placed in the interior of the concentrated cavity 15 in sequence, so that the profiles 3 can be stacked and placed in the interior of the concentrated cavity 15, and then the driving motor 14 can be started to drive the screw rod 13 to rotate clockwise, so that the front end plate 12 can move on the screw rod 13 to the end away from the driving motor 14. At this time, when the front end plate 12 is moving, the displacement plate 11 can be driven to move at the same time by pulling the push plate 9, and when the push plate 9 remains in a normal state, it can be flush with the inner side wall of the concentrated cavity 15 close to the driving motor 14, so that when the push plate 9 moves to the end away from the driving motor 14, the profile 3 at the bottom layer of the concentrated cavity 15 can be pushed to move, and then, when the push plate 9 moves to the extreme position in the concentrated cavity 15, the profile 3 can be pushed to be completely removed from the interior of the concentrated cavity 15, and the profile 3 can enter the supporting bottom plate 19, and at the same time, the two profiles 3 can fit each other;

[0044] Subsequently, the screw rod 13 is 10 cm longer than the central cavity 15, so that the front end plate 12 can continuously move toward the front end, and when the front end plate 12 moves toward the front end, it can drive the first rack 6 to pass through the second gear 38, thereby driving the winding wheel 37 to rotate at the same time. When the winding wheel 37 rotates, the connecting rope 36 can be pulled to drive the connecting plate 44 to move toward one end close to the second gear 38, so that the welding gun 21 can move between the two profiles 3, and the welding gun 21 is in an open state, so that when the welding gun 21 contacts the profile 3, the connecting parts between the two profiles 3 can be welded. Subsequently, when the sliding key 24 is slidably inserted into the internal slot of the fourth spring 42, the support plate 23 can be supported to move in a straight line. When the support plate 23 drives the welding gun 21 to continuously move toward the front end through the profile 3, the part with the teeth of the first gear 22 can be driven to pass through the top of the second rack 39, so that the first gear 22 can drive the welding gun 21 to rotate through the rotating shaft 26, and the teeth distribution angle of the first gear 22 is 30°, so that after the first gear 22 drives the welding gun 21 to rotate 30°, the teeth of the first gear 22 will be out of contact with the second rack 39;

[0045] At the same time, when the rotating shaft 26 rotates 30°, the mating key 29 can be driven to move past the positioning baffle 30. When the mating key 29 contacts the positioning baffle 30, the second spring 28 is provided to allow the mating key 29 to slide upward, so that the mating key 29 can pass the side end of the positioning baffle 30. When the mating key 29 rotates to 30°, the mating key 29 can be inserted into the groove inside the top end of the positioning baffle 30, so that the mating key 29 and the welding gun 21 can be prevented from rotating again. Subsequently, the driving motor 14 can be started again to drive the screw rod 13 to rotate counterclockwise, so that the front end plate 12 can drive the pushing plate 9 to the inner side of the concentrated cavity 15. The push plate 9 moves, so that the push plate 9 can be reset, and when the push plate 9 is reset, the end of the push plate 9 close to the special-shaped bracket 7 can be flush with the inner wall surface of the concentrated cavity 15 close to the driving motor 14, so that the upper layer of the profile 3 inside the concentrated cavity 15 will fall down to the inner bottom of the concentrated cavity 15, which is convenient for the push plate 9 to push the profile 3 to move into the concentrated cavity 15 again. At the same time, when the front end plate 12 is reset to the rear end, it can drive the first rack 6 to pass through the second gear 38 again, so that the winding wheel 37 can release the connecting rope 36, and the elasticity of the fourth spring 42 will drive the support plate 23 to move to the rear end and reset, so that the welding gun 21 can be reset at the same time;

[0046] When the support plate 23 is fully reset, the second piston rod 33 can be driven to contact the alignment plate 40. Through the blocking of the alignment plate 40, the second piston rod 33 can be inserted into the interior of the special-shaped gas cylinder 32, causing the first piston rod 31 to drive the positioning baffle 30 to move toward the end close to the extension bracket 25, so that the positioning baffle 30 can be pulled out of the matching key 29 and release the matching key 29. At the same time, the reset spring is fixedly installed on the side end of the connecting plate 44 away from the fourth spring 42. When the matching key 29 is out of contact with the positioning baffle 30, the reset spring will drive the welding gun 21 to rotate toward the end away from the support plate 23 until the welding gun 21 drives the magnetic suction plate 35 to contact the front baffle 20 again. The front baffle 20 and the magnetic suction plate 35 are adsorbed and fitted, so that the welding gun 21 can be placed in a vertical posture again, which is convenient for the welding gun 21 to weld the profile 3 again and complete the work.

[0047] Example 2

[0048] On the basis of Example 1, Fig.10 As shown, the supporting base plate 19 further includes a hydraulic cylinder 45 and a blocking plate 46 . The hydraulic cylinder 45 is fixedly mounted on the bottom end of the supporting base plate 19 , and the blocking plate 46 is fixedly mounted on the side end of the hydraulic cylinder 45 .

[0049] When implementing this embodiment, a release groove is opened at the bottom end of the supporting base plate 19, and the blocking plate 46 is located at the bottom end of the release groove, so that the blocking plate 46 can be located at the bottom end of the release groove for blocking when the profile 3 is welded. When the welding of the profile 3 is completed, the hydraulic cylinder 45 can be started to drive the blocking plate 46 to move to the release groove, so that the welded profile 3 can slide and fall from the inside of the supporting base plate 19, completing the discharge of the profile 3.

[0050] 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 automated welding device for profile production, comprising a support component (2), wherein guide components (1) are fixedly mounted at both ends of the support component (2), and the inner bottom end of the support component (2) close to the guide component (1) is used to place a profile (3), characterized in that: The guide component (1) comprises an alignment device (4) and a collecting device (5), the alignment device (4) comprises a first rack (6), a special-shaped bracket (7) and a front end plate (12), the first rack (6) is fixedly mounted on one end of the special-shaped bracket (7), the special-shaped bracket (7) is fixedly mounted on the side end of the front end plate (12), a guide rod (10) is fixedly mounted on the side end of the front end plate (12) away from the first rack (6), and the guide rod (10) is away from the top of the front end plate (12). The end outer ring is slidably sleeved with a displacement plate (11), a first spring (8) is fixedly installed between the displacement plate (11) and the front end plate (12), a push plate (9) is fixedly installed at the top of the displacement plate (11), and the collecting device (5) comprises a screw rod (13), a drive motor (14) and a concentration cavity (15), the drive motor (14) is fixedly installed at one end of the bottom of the concentration cavity (15), and the screw rod (13) is fixedly installed at the center of the side end of the drive motor (14).

2. The automatic welding equipment for profile production according to claim 1, characterized in that: The support component (2) comprises a contact device (16), a reset device (17), a side frame (18) and a support base plate (19); the contact device (16) is symmetrically slidably inserted into the top end and the bottom end of the reset device (17); the side frame (18) is fixedly mounted on both sides of the reset device (17); and the support base plate (19) is symmetrically fixedly mounted on one end of the side frame (18) away from the contact device (16).

3. The automatic welding equipment for profile production according to claim 2, characterized in that: The contact device (16) comprises an extension bracket (25), a sliding key (24), a support plate (23), a rotating shaft (26) and a welding gun (21); The sliding key (24) is fixedly mounted on the two ends of the top of the support plate (23); the extending bracket (25) is symmetrically fixedly mounted on the top of the supporting plate (23), and the extending bracket (25) is located between the two sliding keys (24); the rotating shaft (26) is rotatably mounted inside the front end of the extending bracket (25); the welding gun (21) is fixedly mounted between the two rotating shafts (26); the side end of the rotating shaft (26) away from the welding gun (21) is fixedly mounted with a first gear (22); a front baffle (20) is fixedly mounted on the bottom of the front end of the extending bracket (25); two vertical rods (27) are slidably inserted inside the rotating shaft (26); a matching key (29) is fixedly mounted on the bottom end of the vertical rod (27); two second springs (28) are fixedly mounted between the matching key (29) and the rotating shaft (26), and the second springs (28) are located on the outer ring of the vertical rod (27); A magnetic plate (35) is fixedly installed on the side end of the rotating shaft (26) close to the front baffle (20), and a special-shaped air cylinder (32) is fixedly installed on the side end of the magnetic plate (35) close to the vertical rod (27). A second piston rod (33) is slidably inserted in the interior of the special-shaped air cylinder (32) away from the vertical rod (27), and a third spring (34) is fixedly installed between the second piston rod (33) and the special-shaped air cylinder (32). A first piston rod (31) is slidably inserted in the interior of the end of the special-shaped air cylinder (32) close to the vertical rod (27), and a positioning baffle (30) is fixedly installed on the end of the first piston rod (31) close to the first gear (22); The support plate (23) can drive the first gear (22) to pass the top end of the second rack (39) when displaced, so that the welding gun (21) can drive the matching key (29) to rotate and be tilted and aligned with the positioning baffle (30).

4. The automatic welding equipment for profile production according to claim 3 is characterized in that: The reset device (17) comprises a supporting rear plate (41), a front end bracket (43) and a fourth spring (42), wherein the front end bracket (43) is symmetrically fixedly mounted on the top and bottom of the side end of the supporting rear plate (41), the fourth spring (42) is fixedly mounted on the top and bottom of the side end of the supporting rear plate (41) close to the front end bracket (43), and the fourth spring (42) is located at the inner center of the front end bracket (43), and a connecting plate (44) is fixedly mounted on one end of the fourth spring (42) away from the supporting rear plate (41). , an alignment plate (40) is fixedly mounted on one end of the front end bracket (43) close to the connecting plate (44), a second rack (39) is symmetrically fixedly mounted on the top end of the front end bracket (43) away from the supporting rear plate (41), a second gear (38) is rotatably mounted on the top center of the front end bracket (43) close to the second rack (39), a winding wheel (37) is fixedly mounted on the top center of the second gear (38), and a connecting rope (36) is fixedly mounted between the connecting plate (44) and the winding wheel (37); When the second gear (38) rotates, the connecting plate (44) can be pulled to move by the connecting rope (36), so that the connecting plate (44) can drive the contact device (16) to move as a whole.

5. The automatic welding equipment for profile production according to claim 4 is characterized in that: The displacement plate (11) is slidably inserted into the bottom end of the central cavity (15), the front end plate (12) is threadedly sleeved on the screw rod (13), the central cavity (15) is fixedly mounted on one end of the side frame (18) close to the supporting bottom plate (19), the sliding key (24) is slidably inserted into the interior of the front end bracket (43), and the support plate (23) is fixedly mounted on the side end of the connecting plate (44) away from the fourth spring (42).

6. The automatic welding equipment for profile production according to claim 5, characterized in that: The tooth distribution angle on the first gear (22) is 30 degrees, and the first gear (22) is vertically aligned with the second rack (39), and a movable groove is provided at the center of the bottom end of the concentrated cavity (15).

7. The automatic welding equipment for profile production according to claim 6, characterized in that: Through holes are provided at the bottoms of both ends of the concentrated cavity (15), and the thickness of the pushing plate (9) is the same as the height of the through holes. A groove is provided inside the top end of the positioning baffle (30) away from the third spring (34).

8. The automatic welding equipment for profile production according to claim 7, characterized in that: The bottom of the side end of the mating key (29) is inclined at 45° away from the magnetic plate (35), the interior of the special-shaped gas cylinder (32) is hollow, and a closed cavity is formed between the first piston rod (31), the special-shaped gas cylinder (32) and the second piston rod (33).

9. The automatic welding equipment for profile production according to claim 8, characterized in that: One end of the special-shaped air cylinder (32) close to the second piston rod (33) and one end of the second piston rod (33) away from the special-shaped air cylinder (32) are respectively fixedly installed with round gaskets, and the third spring (34) is fixedly installed between the two round gaskets, the alignment plate (40) is horizontally aligned with the second piston rod (33), and a slot is provided on the opposite inner side of the front end bracket (43), and the sliding key (24) is slidably inserted into the inside of the slot.

10. The automatic welding equipment for profile production according to claim 9, characterized in that: The supporting base plate (19) further comprises a hydraulic cylinder (45) and a blocking plate (46), wherein the hydraulic cylinder (45) is fixedly mounted on the bottom end of the supporting base plate (19), and the blocking plate (46) is fixedly mounted on the side end of the hydraulic cylinder (45).

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