Multifunctional automatic spot welding machine based on industrial production

Abstract

The invention belongs to the technical field of automatic spot welding, and particularly relates to a multifunctional automatic spot welding machine based on industrial production. Comprising a base; a pressure applying spot welding assembly is arranged on the base station; the pressing spot welding assembly comprises two displacement U bases which are fixedly installed on the same side of the base table. A deformation piece is arranged on the displacement U seat; the deformation piece comprises a U-shaped fixed seat; openings of the U-shaped fixing seats on the two deformation parts are oppositely arranged. The two sides of the U-shaped fixing base are provided with through limiting sliding grooves, and limiting sliding plates are slidably connected into the limiting sliding grooves. A relative braking unit is arranged on the limiting sliding plate; the relative braking unit comprises a pneumatic cylinder which is installed on the side, away from the workpiece, of the limiting sliding plate, and the output end faces the workpiece. Therefore, the automation degree of the machine in use is improved, the working intensity of workers is reduced, the spot welding effect and efficiency of the machine on workpieces are ensured, and the limitation of the machine in practical application is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automatic spot welding, and particularly relates to a multifunctional automatic spot welding machine based on industrial production. BACKGROUND

[0002] In the field of modern industrial production, welding technology, as a key process for connecting metal materials, has a direct impact on product quality, production efficiency and manufacturing cost; with the rapid development of industrial automation, traditional manual spot welding has been difficult to meet the needs of high-precision, high-consistency and high-batch production, and the multifunctional automatic spot welding machine based on industrial production has emerged as the times require; it integrates mechanical automation, electrical control, sensing detection and other technologies, and can adapt to the welding needs of various working conditions and materials, and has become an important equipment in industrial production.

[0003] However, in the process of using the existing multifunctional automatic spot welding machine based on industrial production, the workers still need to manually clean the impurities adhered to the welding surface of the workpiece and the electrode contact surface; this not only reduces the automation degree of the spot welding machine during use, but also increases the work intensity of the workers, and thus indirectly affects the welding effect and efficiency, resulting in strong limitations in actual application. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the application provides a multifunctional automatic spot welding machine based on industrial production, which effectively solves the problems in the background art.

[0005] To achieve the above purpose, the application provides the following technical scheme: a multifunctional automatic spot welding machine based on industrial production, comprising a base; a pressure spot welding assembly is arranged on the base, and the pressure spot welding assembly is used to apply continuous pressure to the workpiece during spot welding; the pressure spot welding assembly comprises two displacement U seats, which are fixedly installed on the same side of the base; a deformation piece is arranged on the displacement U seat; the deformation piece comprises a U-shaped fixed seat; the openings of the U-shaped fixed seats on the two deformation pieces are oppositely arranged; a limiting sliding groove penetrating through the two sides of the U-shaped fixed seat is arranged, and a limiting sliding plate is slidably connected in the limiting sliding groove; a relative braking unit is arranged on the limiting sliding plate, and the relative braking unit is used to clamp the workpiece in the opening of the U-shaped fixed seat; the relative braking unit comprises a pneumatic cylinder, which is installed on the side of the limiting sliding plate away from the workpiece, and the output end of the pneumatic cylinder faces the workpiece; a self-control scraping device is arranged on the pneumatic cylinder, and the self-control scraping device is used to clean the impurities adhered to the two contact surfaces of the workpiece; the self-control scraping device comprises a bent base plate connected to the pneumatic cylinder.

[0006] Preferably, a pressure adding module is arranged on the U-shaped fixed seat; the pressure adding module comprises a pressure adding cylinder, which is connected to the top of the U-shaped fixed seat in a penetrating manner; the U-shaped fixed seat and the pressure adding cylinder are in sliding fit; A pressurizing spring is sleeved on the pressurizing cylinder; one end of the pressurizing spring is fixedly connected with the U-shaped seat, and the other end is connected with a pressurizing limiting plate which is fixedly connected with the pressurizing cylinder away from the U-shaped seat; a plurality of the pressurizing cylinders away from the pressurizing limiting plate are jointly connected with a heat insulation base plate which is located in the opening of the U-shaped seat; an electrode is fixedly installed on the side of the heat insulation base plate away from the pressurizing cylinder, and the workpiece is located on the moving path of the electrode.

[0007] Preferably, the deformation member comprises a deformation square cylinder; two deformation square cylinders are symmetrically fixedly installed on the side of the U-shaped seat away from the workpiece; a deformation square column which is matched with the deformation square cylinder is slidably connected in the deformation square cylinder; two deformation square columns are jointly connected with a deformation cross plate, and a pressurizing base is fixedly installed on the side of the deformation cross plate close to the U-shaped seat, and the pressurizing limiting plate is located on the moving path of the pressurizing base; A drive rack is connected to the side of the deformation cross plate; A deformation spring is fixedly connected with the inner bottom surface of the deformation square cylinder at one end, and is fixedly connected with the deformation square column at the other end.

[0008] Preferably, a main valve plate is connected in the pneumatic cylinder; a heat insulation column is slidably connected in the output end of the pneumatic cylinder; A first spring is located in the pneumatic cylinder; one end of the first spring is fixedly connected with the main valve plate, and the other end is fixedly connected with the heat insulation column; the heat insulation column away from the first spring penetrates through the side of the limiting sliding plate close to the pneumatic cylinder and is in contact with the side of the workpiece; A gas pump is installed on the side of the U-shaped seat close to the deformation cross plate; bending hoses are installed on the two sides of the gas pump and are connected with the end of the pneumatic cylinder away from the limiting sliding plate; the bending hoses and the pneumatic cylinder are connected in communication.

[0009] Preferably, a limiting cylinder is fixedly connected in the limiting sliding groove; the limiting cylinder penetrates through the limiting sliding plate and is slidably matched with the limiting sliding plate; A limiting spring is sleeved on the limiting cylinder; one end of the limiting spring is fixedly connected with the limiting sliding groove, and the other end is fixedly connected with the limiting sliding plate.

[0010] Preferably, a positioning L-shaped pipe is installed at the side wall of the pneumatic cylinder and is located between the inner bottom surface and the main valve plate; the other end of the positioning L-shaped pipe is towards the workpiece and is slidably connected with a matched positioning cylinder; an auxiliary valve plate is installed in the positioning L-shaped pipe; the positioning L-shaped pipe is connected with a bending base plate; A positioning spring is located in the positioning L-shaped pipe; one end of the positioning spring is fixedly connected with the auxiliary valve plate, and the other end is fixedly connected with the positioning cylinder; a rectangular tooth frame is installed on the end of the positioning cylinder away from the positioning spring; A positioning gear is installed on the bending base plate; the positioning gear is located in the rectangular tooth frame and is slidably matched with the rectangular tooth frame; a rotating turntable is installed on the side of the positioning gear away from the bending base plate.

[0011] Preferably, a rotating column is installed at the edge of the rotating turntable away from the positioning gear; A rotating block is located on the side of the rotating turntable away from the positioning gear; a rotating sliding groove is provided on the side of the rotating block close to the rotating turntable; the rotating column is located in the rotating sliding groove and the two are in sliding fit; A rotating base is installed on the bending base plate; a rotating cylinder is installed on one side of the rotating block and a bending square rod is installed on the other side; the rotating cylinder is connected to the rotating base in penetration and the two are in sliding fit; two scrapers are installed on the bending square rod and located on the two sides of the workpiece respectively; the scrapers are in contact with the side of the workpiece when moving.

[0012] Preferably, a displacement screw rod is installed in the displacement U-shaped seat; A displacement block is threadedly connected to the displacement screw rod; a displacement sliding column is installed on the base and connected to the displacement block in penetration and the two are in sliding fit; the displacement block is connected with the deformation cross plate; a driving motor is installed on the displacement U-shaped seat and connected with the displacement screw rod.

[0013] Preferably, a double-action load reduction mechanism is provided on the deformation square cylinder; the double-action load reduction mechanism comprises a driving gear installed on the deformation square cylinder; the driving gear is in meshing connection with a driving rack; A first pulley is connected to the driving gear; A driving base is installed on the pneumatic cylinder; a second pulley is connected to the driving base; A tension belt has one end connected to the first pulley and the other end connected to the second pulley; A rotating cam is installed on the second pulley.

[0014] Preferably, a guide base plate is installed on the driving base; A guide cylinder is connected to the guide base plate in penetration and the two are in sliding fit; two guide cylinders are commonly connected with a guide block; A second spring is sleeved on the guide cylinder; one end of the second spring is fixedly connected with the guide base plate and the other end is fixedly connected with the guide block; the guide block is located on the side wall rotating path of the rotating cam on the side close to the rotating cam; a material removing frame is installed on the guide block and the shape and size of the frame match those of the scraper; the material removing frame is in contact with the scraper when moving and is used to remove the impurities adhered to the scraper.

[0015] From the above, the multifunctional automatic spot welding machine based on industrial production has the effect of automatically cleaning impurities on the workpiece; the cleaning operation does not need the intervention of the staff, and is automatically completed within the time after clamping the workpiece, so that the machine does not need the staff to manually clean the impurities adhered on the workpiece welding surface and the electrode contact surface during use, simultaneously, the cleaning of the impurities and the clamping of the workpiece share a common drive source, avoiding the need to use multiple drive sources to increase the working energy consumption of the machine, improving the environmental protection effect during use of the machine, thereby reducing the cost during use of the machine, and improving the automation degree during use of the machine, further reducing the work intensity of the staff, further improving the spot welding effect and efficiency of the machine on the workpiece, and reducing the limitations of the machine in practical application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the application, and do not limit the application.

[0017] In the drawings: Figure 1 It is the overall structure schematic diagram of the application; Figure 2 It is the structure schematic diagram of the deformation cross plate of the application; Figure 3 It is the positioning L tube sectional view of the application; Figure 4 It is the structure schematic diagram of the pressure base of the application; Figure 5 It is the structure schematic diagram of the pneumatic cylinder of the application; Figure 6 It is the sectional view of the heat insulation base plate of the application; Figure 7 It is the structure schematic diagram of the material removing frame of the application; Figure 8 It is the structure schematic diagram of the scraper of the application; Figure 9 It is the structure schematic diagram of the rotating cam of the application; In the figure: 1, base; 2, displacement U seat; 3, U-shaped fixed seat; 4, limiting sliding groove; 5, limiting sliding plate; 6, pneumatic cylinder; 7, bending base plate; 8, pressurizing cylinder; 9, pressurizing spring; 10, pressurizing limiting plate; 11, heat insulation base plate; 12, deformation square cylinder; 13, deformation square column; 14, deformation cross plate; 15, pressure applying base; 16, driving rack; 17, deformation spring; 18, main valve plate; 19, heat insulation column; 20, first spring; 21, air pump; 22, bending hose; 23, limiting cylinder; 24, limiting spring; 25, positioning L pipe; 26, positioning cylinder; 27, auxiliary valve plate; 28, positioning spring; 29, rectangular tooth frame; 30, positioning gear; 31, rotating turntable; 32, rotating column body; 33, rotating cross block; 34, rotating sliding groove; 35, rotating base; 36, rotating cylinder; 37, bending square rod; 38, scraper; 39, displacement screw rod; 40, displacement square block; 41, displacement sliding column; 42, driving motor; 43, driving gear; 44, first pulley; 45, driving base; 46, second pulley; 47, tensioning belt; 48, rotating cam; 49, guide base plate; 50, guide cylinder; 51, guide cross block; 52, second spring; 53, material removing frame. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] Embodiment, by Figures 1 to 9The present application comprises a base 1, a pressure spot welding assembly is arranged on the base 1, which is used to apply continuous pressure to the workpiece during spot welding; the pressure spot welding assembly comprises two displacement U seats 2, which are fixedly installed on the same side of the base 1; the displacement U seat 2 is provided with a deformation member; the deformation member comprises a U-shaped fixed seat 3; the openings of the U-shaped fixed seats 3 on the two deformation members are oppositely arranged; the U-shaped fixed seat 3 is provided with a limiting sliding groove 4 penetrating through both sides, and a limiting sliding plate 5 is slidingly connected in the limiting sliding groove 4; a relative braking unit is arranged on the limiting sliding plate 5, which is used to clamp the workpiece in the opening of the U-shaped fixed seat 3; a displacement screw rod 39 is installed in the displacement U seat 2; a displacement block 40 is threadedly connected to the displacement screw rod 39; a displacement sliding column 41 is installed on the base 1 and penetratingly connected to the displacement block 40, and the two are slidingly matched; the displacement block 40 is connected with a deformation cross plate 14; a driving motor 42 is installed on the displacement U seat 2 and connected with the displacement screw rod 39; the deformation member comprises a deformation square cylinder 12; the two deformation square cylinders 12 are fixedly installed on the side of the U-shaped fixed seat 3 away from the workpiece in a symmetrical manner; a deformation square column 13 is slidingly connected in the deformation square cylinder 12 in a matching manner; the two deformation square columns 13 are jointly connected with the deformation cross plate 14, which is fixedly installed with a pressure base 15 on the side close to the U-shaped fixed seat 3, and a pressure limiting plate 10 is located on the moving path of the pressure base 15; a driving rack 16 is connected to the side surface of the deformation cross plate 14; a deformation spring 17 is fixedly connected at one end with the inner bottom surface of the deformation square cylinder 12 and at the other end with the deformation square column 13.

[0020] By starting the driving motor 42, the output end of the driving motor 42 drives the displacement screw rod 39 to rotate, so that the threadedly connected displacement block 40 can be limited to move at the displacement sliding column 41, thereby driving the deformation cross plate 14 to move, and the displacement U seat 2 is provided with two, so that the two deformation cross plates 14 can move relative to each other, and under the action of the deformation member, the U-shaped fixed seat 3 is driven to move, and the workpiece is fixedly clamped in the opening of the U-shaped fixed seat 3 by the relative braking unit, and the relative movement of the workpiece is realized by the relative movement of the two U-shaped fixed seats 3, and the workpiece is finally abutted; when the two workpieces are abutted together, it indicates that spot welding operation is needed, and the continuous rotation of the displacement screw rod 39 drives the deformation cross plate 14 to continuously move, the deformation square column 13 on the deformation cross plate 14 is limited to move in the limited deformation square cylinder 12, and the deformation spring 17 is in a buffering state, thereby continuously applying pressure to the workpiece, ensuring that the two workpieces are closely abutted, avoiding the existence of gaps between them or dislocation during the welding process, and affecting the spot welding effect of the equipment, thereby improving the welding effect and welding precision of the equipment.

[0021] The U-shaped seat 3 is provided with a pressing die assembly; the pressing die assembly comprises a pressing cylinder 8 which is connected to the top of the U-shaped seat 3; the U-shaped seat 3 and the pressing cylinder 8 are in sliding fit; a pressing spring 9 is sleeved on the pressing cylinder 8; one end of the pressing spring 9 is fixedly connected with the U-shaped seat 3, and the other end is connected with a pressing limiting plate 10 which is fixedly connected with the end of the pressing cylinder 8 away from the U-shaped seat 3; a plurality of ends of the pressing cylinder 8 away from the pressing limiting plate 10 are jointly connected with a heat insulation base plate 11 which is located in the opening of the U-shaped seat 3; an electrode is fixedly installed on the side of the heat insulation base plate 11 away from the pressing cylinder 8, and the workpiece is located on the moving path of the electrode.

[0022] When the deformation horizontal plate 14 moves close to the U-shaped seat 3, it synchronously drives the pressing base 15 to move, so that the pressing base 15 contacts the pressing limiting plate 10 during the movement, the pressing cylinder 8 on the pressing limiting plate 10 is limited to move on the U-shaped seat 3, the pressing spring 9 is in a buffering state, and then the heat insulation base plate 11 on the pressing cylinder 8 moves close to the clamped workpiece, until the electrode on the heat insulation base plate 11 contacts the workpiece, and the downward movement of the deformation horizontal plate 14 is continuous, so that the heat insulation base plate 11 continuously transmits the downward pressure to the electrode, so that the electrode and the workpiece are in close contact, and the workpieces are also ensured to be in close contact, so as to facilitate heat transfer and rapid circulation, avoid the influence of the out-of-position contact between the electrode and the workpiece or between the workpieces on the spot welding effect of the equipment, and at this time, the two workpieces contact, and the two electrodes also contact the top of the upper workpiece and the bottom of the lower workpiece respectively, so that the workpieces can be welded together after the electrodes are electrified, so as to complete the spot welding operation of the workpieces, and the continuous pressing of the deformation horizontal plate 14 on the workpieces and the electrodes can avoid the influence of the dislocation between the electrodes and the workpieces or between the workpieces caused by non-human factors during the spot welding process, so as to further improve the spot welding precision and reduce the limitations of the machine during use.

[0023] The relative brake unit of the embodiment comprises a pneumatic cylinder 6 which is installed on the side of the limiting sliding plate 5 away from the workpiece, and the output end faces the workpiece; a main valve plate 18 which is connected in the pneumatic cylinder 6; a heat insulation column 19 which is in sliding connection in the output end of the pneumatic cylinder 6; a first spring 20 which is located in the pneumatic cylinder 6; one end of the first spring 20 is fixedly connected with the main valve plate 18, and the other end is fixedly connected with the heat insulation column 19; the end of the heat insulation column 19 away from the first spring 20 penetrates through the side of the limiting sliding plate 5 close to the pneumatic cylinder 6, and contacts the side surface of the workpiece; a gas pump 21 which is installed on the side of the U-shaped seat 3 close to the deformation horizontal plate 14; two bending hoses 22 which are installed on the two sides of the gas pump 21 are connected with the end of the pneumatic cylinder 6 away from the limiting sliding plate 5; the bending hoses 22 and the pneumatic cylinder 6 are in communication; a limiting cylinder 23 which is fixedly connected in the limiting sliding groove 4; the limiting cylinder 23 is in penetrating connection on the limiting sliding plate 5, and the two are in sliding fit; a limiting spring 24 which is sleeved on the limiting cylinder 23; one end of the limiting spring 24 is fixedly connected with the limiting sliding groove 4, and the other end is fixedly connected with the limiting sliding plate 5.

[0024] When the workpieces need to be spot welded together, they need to be fixed separately. By placing the workpiece in the opening of the U-shaped fixing seat 3 and starting the air pump 21, the gas generated by it is transported to the pneumatic cylinder 6 through the bent hose 22. At this time, the main valve plate 18 is in the open state, so that the gas entering the pneumatic cylinder 6 acts on the heat insulating column 19. Under the pressure change, the heat insulating column 19 is pushed to move, so that the first spring 20 is in a buffer state, so that the heat insulating column 19 passes through the limiting slide 5 and contacts the side of the workpiece, so that both sides of the workpiece are limited and can be clamped in the current position, and the clamping position is the side of the workpiece, which will not affect the spot welding operation of the workpiece, and avoids the workpiece from being dislocated or shaken due to non-human factors when welding together, thereby improving the spot welding effect and accuracy of the machine on the workpiece, and improving the stability of the machine during spot welding; it is worth mentioning that when the workpiece is limited by the heat insulating column 19, the main valve plate 18 can be closed, so that the main valve plate 18 in the pneumatic cylinder 6 and the gas at the heat insulating column 19 The body, that is, the gas acting on the insulation column 19 cannot be dissipated, so that the insulation column 19 can be worked all the time, and the first spring 20 in the buffer state cannot be reset. The elastic force brought by it acts on the workpiece through the insulation column 19 all the time, so as to improve the clamping effect of the workpiece, avoid it from being dislocated or shaking during the clamping process, and improve the stability of the workpiece when clamping; it is worth mentioning that when the insulation column 19 passes through the limiting slide 5 and contacts the workpiece, the insulation column 19 and the limiting slide 5 are connected together. When the electrode on the pressure spot welding assembly contacts the workpiece, if the diameter of the workpiece is not combined and contacted due to thickness problems, the workpiece can continue to move downward by continuing to move the electrode downward, so that it can pass through the limiting slide 5 on the insulation column 19 and move in a limited manner at the limiting slide groove 4, so that the limiting spring 24 is in a buffer state, which can continue to drive the workpiece to move downward, so as to ensure that the workpieces are in contact with each other, and avoid the workpieces not being in contact or not in contact with each other, affecting the spot welding effect of the machine, thereby further improving the spot welding accuracy of the workpiece.

[0025] The self-control scraping device of the embodiment comprises a bending base plate 7 connected to the pneumatic cylinder 6, a positioning L tube 25, one end of which is installed on the side wall of the pneumatic cylinder 6 and between the inner bottom surface and the main valve plate 18, the other end of which is towards the workpiece and is slidingly connected to a matching positioning cylinder 26, an auxiliary valve plate 27 installed in the positioning L tube 25, the positioning L tube 25 connected to the bending base plate 7, a positioning spring 28 in the positioning L tube 25, one end of which is fixedly connected to the auxiliary valve plate 27 and the other end of which is fixedly connected to the positioning cylinder 26, a rectangular tooth frame 29 installed on the end of the positioning cylinder 26 away from the positioning spring 28, a positioning gear 30 installed on the bending base plate 7, the positioning gear 30 located in the rectangular tooth frame 29 and the two slidingly matched, a rotating turntable 31 installed on the side of the positioning gear 30 away from the bending base plate 7, a rotating column 32 installed on the edge of the rotating turntable 31 away from the positioning gear 30, a rotating cross block 33 located on the side of the rotating turntable 31 away from the positioning gear 30, the rotating cross block 33 provided with a rotating sliding slot 34 penetrating on the side close to the rotating turntable 31, the rotating column 32 located in the rotating sliding slot 34 and the two slidingly matched, a rotating base 35 installed on the bending base plate 7, a rotating cylinder 36 installed on one side of the rotating cross block 33 and a bending square rod 37 installed on the other side of the rotating cross block 33, the rotating cylinder 36 penetratingly connected to the rotating base 35 and the two slidingly matched, two scrapers 38 installed on the bending square rod 37 and located on both sides of the workpiece respectively, and the scrapers 38 moving and contacting the side surface of the workpiece.

[0026] When the relative brake unit has completed clamping the workpiece, the main valve plate 18 is in a closed state at this time, and by opening the auxiliary valve plate 27, the gas generated by the air pump 21 enters the positioning L pipe 25 in the pneumatic cylinder 6, and acts on the positioning cylinder 26 through the auxiliary valve plate 27, so that the rectangular tooth frame 29 moves, and the positioning spring 28 is in a buffer state, and then the moving rectangular tooth frame 29 drives the meshing positioning gear 30 to rotate, which drives the rotating disc 31 to rotate, so that the rotating column 32 on it can reciprocatingly limit and move in the rotating chute 34, and the rotating cross block 33 on it can limit and move reciprocatingly in the rotating base 35 through the rotating cylinder 36, so that the reciprocating rotating cross block 33 drives the two scrapers 38 to reciprocate under the action of the bending square rod 37. When the scraper 38 moves forward, it can contact the workpiece, and after resetting, it is not located on the top or bottom of the workpiece, so as not to affect the spot welding operation of the workpiece, and reduce the limitation of the machine in use. At the same time, through the reciprocating movement of the scraper 38, the impurities or dust adhered to the bottom and top of the workpiece, that is, the welding surface and the electrode contact surface, can be cleaned synchronously, avoiding the influence of the adhered impurities on the welding effect when the workpieces contact, and avoiding the influence of the impurities on heat transfer when the workpiece contacts with the electrode, so as to improve the spot welding effect and quality. When cleaning the impurities on the workpiece, it is a full-automatic operation without the intervention of workers, and it is automatically completed after clamping the workpiece, so that the machine in use not only does not need workers to manually clean the impurities adhered to the welding surface of the workpiece and the electrode contact surface, but also cleans the impurities and clamps the workpiece together with a common driving source, avoiding the need to use multiple driving sources to increase the working energy consumption of the machine, improving the environmental protection effect of the machine in use, thereby reducing the cost of the machine in use, and improving the automation degree of the machine in use, reducing the working intensity of the workers, further improving the spot welding effect and efficiency of the machine on the workpiece, and reducing the limitation of the machine in practical application. It is worth mentioning that when the scraper 38 completes the cleaning operation of the workpiece, the air pump 21 stops working and releases the gas in the positioning L pipe 25, so that the positioning spring 28 resets, and the scraper 38 resets to the initial position, avoiding affecting the spot welding operation of the workpiece.

[0027] The deformation square cylinder 12 of the embodiment is provided with a double-action load reduction mechanism; the double-action load reduction mechanism comprises a driving gear 43 mounted on the deformation square cylinder 12; the driving gear 43 is in meshing connection with the driving rack 16; a first pulley 44 connected to the driving gear 43; a driving base 45 mounted on the pneumatic cylinder 6; the driving base 45 is connected with a second pulley 46; a tension belt 47, one end of which is connected with the first pulley 44, and the other end of which is connected with the second pulley 46; a rotary cam 48 mounted on the second pulley 46; a guide base plate 49 mounted on the driving base 45; a guide cylinder 50 connected to the guide base plate 49, and the two are in sliding fit; two guide cylinders 50 are jointly connected with a guide cross block 51; a second spring 52 is sleeved on the guide cylinder 50; one end of the second spring 52 is fixedly connected with the guide base plate 49, and the other end is fixedly connected with the guide cross block 51; the guide cross block 51 is located on the side wall rotation path of the rotary cam 48 on the side close to the rotary cam 48; a material removing frame 53 is mounted on the guide cross block 51, and the shape and size of the frame are matched with the scraper 38; the material removing frame 53 is in contact with the scraper 38 when moving, and is used for scraping off the impurities adhered to the scraper 38.

[0028] When the self-control scraping device completes the cleaning operation of the impurities adhered to the workpiece, the workpiece can be operated by the pressure spot welding assembly to perform spot welding operation, so that the two workpieces are welded together, that is, the deformation cross plate 14 drives the U-shaped fixed seat 3 to move synchronously, when the workpiece contacts together, the U-shaped fixed seat 3 cannot continue to move, and through the continuous movement of the deformation cross plate 14, the deformation square column 13 on it is limited to move in the deformation square cylinder 12, so that the distance between the deformation cross plate 14 and the U-shaped fixed seat 3 is reduced, that is, the driving rack 16 on the moving deformation cross plate 14 drives the meshing driving gear 43 to rotate, under the action of the first pulley 44, the tension belt 47 and the second pulley 46, the rotary cam 48 can be rotated, so that the protrusions thereon continuously contact the guide cross block 51, so that the guide cylinder 50 reciprocatingly moves on the guide base plate 49, so that the second spring 52 is constantly in a buffering and resetting state, thereby driving the material removing frame 53 to reciprocate, since the scraper 38 is no longer in a moving state during spot welding, its position remains at the initial position, since the scraper 38 will have some impurities adhered to it when cleaning the impurities on the workpiece, through the reciprocating movement of the material removing frame 53, the scraper 38 reciprocates on the scraper 38, so that the impurities adhered to the scraper 38 during cleaning are cleaned, so that the scraper 38 can be kept sharp for a long time, avoiding that too much impurities adhered to the scraper 38 affect the scraping and cleaning effect of the workpiece, so that the cleaning effect of the scraper 38 on the workpiece is improved, avoiding the need for workers to frequently clean or replace the scraper 38, further reducing the working intensity of the workers, and further prolonging the service life of the scraper 38, thereby reducing the limitations of the machine during use.

[0029] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0030] While the embodiments of the application have been shown and described herein, it is to be understood that the scope of the application, jointly pointed out in the appended claims, is not to be limited to the above-described embodiments but can be otherwise variously changed, modified, replaced, and altered within the principles and spirit of the present application.

Claims

1. A multifunctional automatic spot welding machine based on industrial production, comprising a base; characterized in that: A pressure spot welding assembly is provided on the base, which is used to apply continuous pressure to the workpiece when spot welding; the pressure spot welding assembly includes two displacement U seats, both of which are fixedly installed on the same side of the base; a deformable part is provided on the displacement U seat; the deformable part includes a U-shaped fixed seat; the openings of the U-shaped fixed seats on the two deformable parts are arranged opposite to each other; a penetrating limiting slide groove is provided on both sides of the U-shaped fixed seat, in which a limiting slide is slidably connected; a relative braking unit is provided on the limiting slide, which is used to clamp the workpiece in the opening of the U-shaped fixed seat; the relative braking unit includes a pneumatic cylinder, which is installed on the side of the limiting slide away from the workpiece, and the output end is facing the workpiece; an automatic scraper device is provided on the pneumatic cylinder, which is used to clean impurities adhered to the two contact surfaces of the workpiece; the automatic scraper device includes a bending base plate, which is connected to the pneumatic cylinder.

2. The multifunctional automatic spot welding machine based on industrial production according to claim 1, characterized in that: The U-shaped fixing seat is provided with a pressurizing module; the pressurizing module includes a pressurizing cylinder which is connected through the top of the U-shaped fixing seat; the U-shaped fixing seat and the pressurizing cylinder are slidably matched; A pressure spring is sleeved on the pressure cylinder; one end of the pressure spring is fixedly connected to the U-shaped fixing seat, and the other end is connected to a pressure limiting plate, which is fixedly connected to the end of the pressure cylinder away from the U-shaped fixing seat; several pressure cylinders are commonly connected to an insulating substrate at one end away from the pressure limiting plate, which is located in the opening of the U-shaped fixing seat; an electrode is fixedly installed on the side of the insulating substrate away from the pressure cylinder, and the workpiece is located on the moving path of the electrode.

3. The multifunctional automatic spot welding machine based on industrial production according to claim 2, characterized in that: The deformable member comprises a deformable square tube; two deformable square tubes are symmetrically fixedly mounted on the side of the U-shaped fixing base away from the workpiece; a matching deformable square column is slidably connected inside the deformable square tube; the two deformable square columns are commonly connected to a deformable horizontal plate, a pressure base is fixedly mounted on the side close to the U-shaped fixing base, and a pressure limiting plate is located on the moving path of the pressure base; A driving rack connected to the side of the deformable horizontal plate; The deformation spring has one end fixedly connected to the inner bottom surface of the deformation square tube and the other end fixedly connected to the deformation square column.

4. The multifunctional automatic spot welding machine based on industrial production according to claim 1, characterized in that: It includes a main valve plate connected to the inside of the pneumatic cylinder; an insulation column is slidably connected to the output end of the pneumatic cylinder; A first spring is located in the pneumatic cylinder; one end of the first spring is fixedly connected to the main valve plate, and the other end is fixedly connected to the heat-insulating column; the heat-insulating column extends through the side of the limiting slide close to the pneumatic cylinder away from the end of the first spring and contacts the side of the workpiece; The air pump is installed on the side of the U-shaped fixed seat close to the deformable horizontal plate; bending hoses are installed on both sides of the air pump, which are connected to the end of the pneumatic cylinder away from the limiting slide; the bending hose is connected to the pneumatic cylinder.

5. The multifunctional automatic spot welding machine based on industrial production according to claim 4, characterized in that: It includes a limiting cylinder, which is fixedly connected to the limiting slide groove; the limiting cylinder is connected to the limiting slide plate through and the two are slidably matched; A limit spring is sleeved on the limit cylinder; one end of the limit spring is fixedly connected to the limit sliding groove, and the other end is fixedly connected to the limit sliding plate.

6. The multifunctional automatic spot welding machine based on industrial production according to claim 1, characterized in that: It includes a positioning L-tube; one end of the positioning L-tube is installed on the side wall of the pneumatic cylinder and is located between its inner bottom surface and the main valve plate; the other end of the positioning L-tube faces the workpiece and is slidably connected to a matching positioning cylinder; an auxiliary valve plate is installed in the positioning L-tube; the positioning L-tube is connected to the bent base plate; A positioning spring is located in the positioning L-tube; one end of the positioning spring is fixedly connected to the auxiliary valve plate, and the other end is fixedly connected to the positioning cylinder; a rectangular tooth frame is installed on the end of the positioning cylinder away from the positioning spring; A positioning gear is installed on the bending base plate; the positioning gear is located in a rectangular gear frame, and the two are slidably matched; a rotating turntable is installed on the side of the positioning gear away from the bending base plate.

7. The multifunctional automatic spot welding machine based on industrial production according to claim 6, characterized in that: It includes a rotating column, which is installed on the edge of the rotating turntable away from the positioning gear; The rotating horizontal block is located on the side of the rotating turntable away from the positioning gear; the rotating horizontal block is provided with a rotating slide groove passing through the side close to the rotating turntable; the rotating column is located in the rotating slide groove, and the two are slidably matched; A rotating base is installed on a bending substrate; a rotating cylinder is installed on one side of the rotating cross block, and a bending square rod is installed on the other side; the rotating cylinder is connected to the rotating base, and the two are slidably matched; two scrapers are installed on the bending square rod, and the two are located on both sides of the workpiece; the scrapers contact the side of the workpiece when moving.

8. The multifunctional automatic spot welding machine based on industrial production according to claim 3, characterized in that: It includes a displacement screw rod, which is installed in the displacement U seat; The displacement block is threadedly connected to the displacement screw; a displacement slide is installed on the base, which is connected to the displacement block and the two are slidably matched; the displacement block is connected to the deformation cross plate; a drive motor is installed on the displacement U seat, which is connected to the displacement screw.

9. The multifunctional automatic spot welding machine based on industrial production according to claim 3, characterized in that: The deformable square tube is provided with a double-action load-reducing mechanism; the double-action load-reducing mechanism includes a driving gear mounted on the deformable square tube; the driving gear is meshed with a driving rack; a first pulley connected to the driving gear; A driving base is mounted on the pneumatic cylinder; the driving base is connected to a second pulley; A tensioning belt, one end of which is connected to the first pulley and the other end of which is connected to the second pulley; The rotating cam is mounted on the second pulley.

10. The multifunctional automatic spot welding machine based on industrial production according to claim 9, characterized in that: It includes a guide base plate, which is mounted on the driving base; A guide cylinder is connected to the guide base plate through and through, and the two are slidably matched; the two guide cylinders are commonly connected to a guide cross block; The second spring is sleeved on the guide cylinder; one end of the second spring is fixedly connected to the guide base plate, and the other end is fixedly connected to the guide cross block; the guide cross block is located on the rotation path of its side wall close to the rotating cam; a material removal frame is installed on the guide cross block, and the shape and size of the frame match the scraper. When the material removal frame moves, it contacts the scraper to scrape off impurities adhered to it.

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