WO2024031870A1

WO2024031870A1 - Automatic welding apparatus having adjustable stroke

Info

Publication number: WO2024031870A1
Application number: PCT/CN2022/133597
Authority: WO
Inventors: 丁家仁; 张鹏; 李卫国; 王俊星; 王朝平; 陈俊璞; 佘伟威; 周耘辛; 刘超群; 段东晓; 周毓
Original assignee: 中国水利电力对外有限公司; 浙江江能建设有限公司
Priority date: 2022-08-11
Filing date: 2022-11-23
Publication date: 2024-02-15
Also published as: CN115365715A

Abstract

An automatic welding device having adjustable stroke comprises: a base (1), two opposing sides of the base each having mounted thereon a securing mechanism (3) for securing a material to be welded; two other sides of the base each having mounted thereon a raising/lowering mechanism (2), an execution mechanism (7) and a control mechanism (6), the raising/lowering mechanism being in sliding fit connection with one side of the execution mechanism, and the other side of the execution mechanism being hinged to the control mechanism; the execution mechanism additionally having mounted thereon a welding mechanism (10), and a starting mechanism (5) used for starting and stopping the welding mechanism, and a cutting mechanism (50) used for cutting welding wire; and the activation of the cutting mechanism being controlled by means of a trigger mechanism (4) mounted on the execution mechanism. In the apparatus, the execution mechanism acting in concert with the control mechanism allows the welding apparatus to weld any welding point without needing to weld from beginning to end, thereby reducing time and materials consumed. Moreover, a welding pipe fitting is designed in a way that avoids a change in welding mode creating negative effects which might affect subsequent welding.

Description

An automatic welding device with adjustable stroke

Technical field

The invention belongs to the field of welding technology, and in particular relates to an automatic welding device with adjustable stroke.

Background technique

Nowadays, with the continuous development of technology, on the one hand, the requirements for intelligent automation of industrial production are getting higher and higher. On the other hand, the flexible production of factories and the rapid switching of different products have put forward higher and higher requirements. While meeting production requirements, the cost can be gradually reduced, the degree of automation can be gradually improved, and the error rate in the production process can be reduced.

Most of the existing welding machines have a fixed welding stroke, or need to start welding from the beginning until welding to the final welding point, and cannot easily adjust the positions that do not require welding in the middle. This not only reduces the welding efficiency, but also increases the welding time. The cost is high, and the pipe fittings welded many times at unnecessary welding points will cause certain deformation due to the high temperature generated by welding many times. Therefore, it is necessary to propose an automated welding device with low cost and more flexible application.

Contents of the invention

The technical problem to be solved by the present invention is to solve the problems existing in the above-mentioned background technology and provide an automatic welding device with adjustable stroke. Through the design of the mechanical structure, the required welding pipe fittings can be welded from the required welding point. The welding stroke is no longer fixed, reducing the consumption of time and materials. The mechanism is designed to be reciprocating, and there is no need to return during secondary welding. to the origin, which greatly improves the welding efficiency, and can automatically start and stop during the lifting and lowering of the welding mechanism to complete the welding.

In order to achieve the above technical features, the object of the present invention is achieved as follows: an automatic welding device with an adjustable stroke, including a base, with fixing mechanisms for fixing the material to be welded respectively installed on opposite sides of the base; The other two sides of the base are respectively equipped with a lifting mechanism, an actuator and a control mechanism. The lifting mechanism is slidingly connected to one side of the actuator, and the other side of the actuator is hinged with the control mechanism; the actuator is also equipped with A welding mechanism, a starting mechanism for starting and stopping the welding mechanism, and a cutting mechanism for cutting the welding wire; the cutting mechanism is controlled and started by a trigger mechanism installed on the actuator.

In a preferred solution, the lifting mechanism includes a first motor fixedly connected to the base. The output shaft of the first motor is fixedly connected to the first gear. The first gear meshes with the second gear. There is a third gear symmetrically meshed on both sides of the second gear. One rack, the end of the first rack is fixed with a first guide post, the base is provided with a first guide groove, the first guide post is in sliding fit with the first guide groove; the first rack on both sides Inclined first grooves are respectively fixedly installed, and a first cylinder is installed with sliding fit in the first groove. The first cylinder penetrates the first chute and slides with it; one end of the two first cylinders is respectively fixedly connected with an arc. The first restricting member is provided with an arc-shaped second chute, and the two ends of the first restricting member on both sides are respectively provided with second restricting members that slide with the second chute.

In a preferred solution, the actuator includes a second motor fixedly connected to the base. The output shaft of the second motor is fixedly connected to a first connecting rod. The first connecting rod is connected to the actuating base. There is an elastic sliding connection in the actuating base. A first connecting piece. A fourth cylinder is installed on one side of the end of the first connecting piece that extends out of the execution base. The fourth cylinder contacts and slides with the inner wall of the first limiting member of the lifting mechanism; the first connecting piece The other end of the end extending out of the execution base is hinged with one end of the second connecting rod, and the other end of the second connecting rod is hinged with the second groove. The upper and lower sides of the second groove are symmetrically provided with first first rods fixedly connected to the base. Slide plate, the second groove member slides between the upper and lower first slide plates; a third connecting rod is slidably provided in the second groove member, and the third connecting rod slides up and down along the second groove member; the second groove member and the base There is a bottom plate between them, and the bottom plate is in sliding cooperation with the upper and lower first sliding plates. A U-shaped groove is provided on the bottom plate; the third connecting rod passes through the U-shaped groove and is in sliding cooperation with the U-shaped groove.

In a preferred solution, the execution base is provided with a first opening, and a first plate is provided in the first opening. The first plate is slidably matched with the execution base, and a third plate is provided on one side of the first plate. One spring, one end of the first spring is fixed to the first plate, and the other end is fixed to the execution base. There is a third cylinder inside the first spring, the right end of the third cylinder is fixed to the first plate, and the left end of the third cylinder passes through the first opening. And it is in sliding fit with the execution base. The left end of the third cylinder is fixed with a first connecting piece, and the first connecting piece is in sliding fit with the execution base.

In a preferred solution, the control mechanism includes a fourth link with one end hinged to the bottom plate of the actuator, the other end of the fourth link hinged to one end of the fifth link, and the other end of the fifth link hinged away from the third link. On the side of the gear center, the third gear is mounted on the base for rotation. The third gear meshes with the fourth gear for transmission. The third motor for driving the rotation of the fourth gear is fixedly connected to the base; the base is provided with a third empty slot. , a fourth motor is fixedly installed in the third empty slot, the output shaft of the fourth motor is fixedly connected to a sixth connecting rod, and an end of the sixth connecting rod away from the fourth motor is fixed with a first support column, and the first support column is symmetrically hinged A pawl is installed. The sixth connecting rod is located at the rear end of the first support column and is fixed with a second support column. The second support column is equipped with a reed, and the middle part of the reed is set on the second support column. The reed Both ends of the gear are respectively in conflict with the pawl; an arc-shaped baffle is provided between the pawl and the third gear, and the baffle is fixedly connected to the base.

In a preferred solution, the welding mechanism includes a second housing, which is fixedly connected to the third connecting rod of the actuator, and the outer wall of the upper end of the second housing is provided with a first connection port that communicates with the inside of the second housing. A pair of rotating guide wheels is provided at the upper end of the second housing, and the welding wire used for welding is located in the middle of the pair of guide wheels; a clamping column is provided below the guide wheel, and a fourth spring is provided below the clamping column. The upper end of the four springs is connected to the clamping column, and the lower end is connected to the connecting column; a first through hole is provided in the center of the clamping column, the diameter of the first through hole is larger than the diameter of the welding wire, and the inner wall of the first through hole is provided with an upward-inclined The first empty groove is provided with a first sphere in the first empty groove, and the first sphere is slidably matched with the first empty groove; the connecting column is threadedly matched with the second shell, and the upper end of the connecting column is provided with a second through hole. The diameter of the through hole is larger than the diameter of the welding wire. The lower end of the connecting post is provided with a third through hole. The diameter of the third through hole is equal to the diameter of the welding wire. The welding wire penetrates the first through hole, the second through hole and the third through hole. Extending from the lower end of the second shell; the connecting column is provided with a first vent in the radial direction, the second shell is provided with a fourth through hole at the connecting column, and the diameter of the fourth through hole is greater than the diameter of the lower end of the connecting column; so The upper end of the second housing is provided with a second connection port, a second conduit is installed in the second connection port, the welding wire for welding is provided in the second conduit, the base is provided with a first guide port, and the other end of the second conduit is connected to the first The guide ports are connected.

In a preferred solution, the starting mechanism includes a first shell, which is fixedly connected to the third link of the actuator; the first shell is longitudinally provided with a first slot, and the first slot is provided with a first slot. There is a second spring, the upper end of the second spring is connected to the first shell, and a first barrier is fixed at the lower end. The first barrier slides up and down in the first slot, and a fourth opening is provided at the lower end of the first barrier. A first protruding piece fixed to the base is provided below the barrier piece, and the longitudinal center of the first protruding piece is aligned with the first barrier piece; a third opening connected to the first slot is provided at the upper end of the first housing, and the first conduit is One end is connected to the third opening, and the other end is connected to the first connection port of the welding mechanism.

In a preferred solution, the cutting mechanism includes a third housing, a fifth motor is fixedly connected to the third housing, a placement slot is provided on the upper surface of the third housing, and a seventh connecting rod is fixedly connected to the output shaft of the fifth motor. , one end of the seventh connecting rod penetrates the side wall of the placement groove and is provided with a first transmission gear in the placement groove. A first driving gear is fixed on the side of the first transmission gear. The first driving gear meshes with the upper tooth surface of the second rack. , the first transmission gear meshes with the second transmission gear, the second transmission gear meshes with the third transmission gear, a second driving gear is fixed on the side of the third transmission gear, and the second driving gear can be connected with the second rack. The lower tooth surface meshes; when the first driving gear meshes with the upper tooth surface of the second rack, the second driving gear does not mesh with the lower tooth surface of the second rack; a cutter is fixed at one end of the second rack, The third housing is provided with a fourth chute, and the tool slides with the fourth chute; the upper surface of the third housing extends downward and is provided with a sixth opening, and the sixth opening is located on the path of the tool's reciprocating motion. The shell is provided with a fifth opening, and the fifth opening is connected to the lower end of the sixth opening. The end of the second conduit away from the second connection port is connected to the fifth opening. The welding wire used for welding passes through the sixth opening and the fifth opening and then flows into the third opening. within the second catheter.

In a preferred solution, the triggering mechanism is installed on the back of the bottom plate of the actuator. The back of the bottom plate is provided with a second empty slot. A first rotating shaft is fixed in the second empty slot. A rotating rod is provided at one end of the rotating shaft away from the bottom plate. The rotating rod is rotationally matched with the first rotating shaft. The rotating rod is provided with an eighth opening. A slidingly fitting third plate is provided in the eighth opening. The lower surface of the third plate is A third spring is fixed, and one end of the third spring away from the third plate is fixed to the rotating rod. The third plate is fixed with a sixth cylinder, and an end of the sixth cylinder away from the third plate is fixed with a first connecting rod. A connecting rod is provided with a first slide block at one end away from the sixth cylinder, and the first slide block is slidably matched with the inner edge of the second slot; the lower end of the rotating rod is provided with a first trigger sensor; the lower end of the rotating rod is against the bottom plate An eighth cylinder is fixed on one side, and the bottom plate is provided with a third chute. The eighth cylinder is in sliding fit with the third chute.

In a preferred solution, the fixing mechanism includes a second fixed base, the second fixed base is fixedly connected to the base, the sixth motor is fixedly connected to the second fixed base, and the output shaft of the sixth motor is fixedly connected to the third fixed base. Four transmission gears, the fourth transmission gear meshes with the first rotating plate, and a second rotating plate is fixedly installed on one side of the first rotating plate; the circumference of the second rotating plate is hinged with one end of the second connecting rod, and the second connecting rod is The other end is hinged with the fixed plate. The fixed plate is provided with a second rotating column. The second rotating column rotates with the fixed plate. A third rotating plate is fixed on one end of the second rotating column away from the first rotating plate. The second rotating column The plate is provided with a fifth chute. The outer circumference of the third rotating plate rotates with the second rotating plate through the fifth chute. A third fixed base is fixed on the side of the third rotating plate away from the second rotating column. The lower end of the third fixed base is fixedly connected to the base.

The invention has the following beneficial effects:

The present invention prevents the welding results from being affected by changes in the position of the welding parts during the machine welding process by setting up a fixing mechanism. At the same time, the fixing mechanism is fixed by rotating and surrounding. Compared with the traditional vise-type fixing method, the invention has a better effect on the pipe fittings. The force is applied more evenly, and the actuator and the control mechanism are set to cooperate synchronously to control the lifting and position of the welding mechanism. The control mechanism mainly determines the starting and ending positions of the welding by controlling the position of the base plate. and the end position is the adjustment of the stroke. At the same time, the actuator completes the lifting effect during the middle sliding process of the bottom plate. At the same time, the starting mechanism is designed. Through the design of the mechanical structure, while the lifting is completed, it automatically drops to the welding starting point. Start the welding state to make the welding more accurate. After the welding is completed, the welding mechanism automatically rises due to the cooperation between the actuator and the base plate. When the welding mechanism rises, the internal design of the starting mechanism causes the welding mechanism to stop welding. On both sides of the actuator Limiting parts are added on the side to facilitate the control of the movement stroke of the actuator by changing the distance between the limiting parts. During the welding process, the welding wire is sheared through the cooperation of the shearing mechanism and the triggering mechanism, which facilitates the subsequent welding mechanism. Provide space for execution. After completing the welding, the welding mechanism will evacuate the welding wire from the welding nozzle to prevent the residual temperature of the welding nozzle from melting the welding wire and affecting the execution of subsequent welding. After completing the first welding point, the base plate can be transported to the next welding point. After reaching the welding point, the actuator is reversely operated to achieve the process of descent, welding and ascent, which saves the time required for the device to return to the origin and improves the welding efficiency of the device.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.

Figure 2 is a schematic structural diagram of the lifting mechanism of the present invention.

Figure 3 is a schematic structural diagram of the actuator of the present invention.

Figure 4 is an enlarged structural schematic diagram of the actuator of the present invention.

Figure 5 is a schematic structural diagram of the actuator of the present invention from another perspective.

Figure 6 is a schematic structural diagram of the control mechanism of the present invention.

Figure 7 is a cross-sectional view of the control mechanism of the present invention.

Figure 8 is a schematic diagram of the positions of the starting mechanism and the welding mechanism of the present invention.

Figure 9 is a schematic structural diagram of the starting mechanism of the present invention.

Figure 10 is a schematic cross-sectional structural diagram of the starting mechanism of the present invention.

Figure 11 is another sectional structural diagram of the welding mechanism of the present invention.

Figure 12 is a schematic diagram of the internal position of the clamping column of the welding mechanism of the present invention.

Figure 13 is a cross-sectional view of the cutting mechanism of the present invention.

Figure 14 is a schematic diagram of the internal structure of the cutting mechanism of the present invention from another perspective.

Figure 15 is a schematic diagram of the external structure of the cutting mechanism of the present invention.

Figure 16 is a schematic diagram of the position and structure of the trigger mechanism of the present invention.

Figure 17 is a schematic structural diagram of the trigger mechanism of the present invention.

Figure 18 is a schematic structural diagram of the fixing mechanism of the present invention.

Figure 19 is an internal schematic diagram of the fixing mechanism of the present invention.

Figure 20 is a schematic cross-sectional structural diagram of the fixing mechanism of the present invention.

Base 1;

Lifting mechanism 2, first cylinder 11, first motor 31, second chute 42, first groove 45, first gear 51, second gear 52, first rack 70, first limiting member 71, second Limiting member 72, first guide post 266, first guide groove 267;

Fixed mechanism 3, sixth motor 36, fourth transmission gear 204, second rotating plate 208, second connecting rod 209, fixed plate 210 is hinged, second rotating column 215, third rotating plate 216, third fixed base 217, second fixed base 218, fifth chute 236, first rotating plate 250;

Trigger mechanism 4, eighth opening 158, second slot 181, first rotating shaft 191, rotating rod 192, third plate 201, third spring 203, sixth cylinder 206, first connecting rod 211, first slide Block 212, first trigger sensor 222, eighth cylinder 228, third chute 233;

Starting mechanism 5, first blocking member 37, first housing 47, first conduit 98, second spring 99, first protruding piece 100, third opening 251, fourth opening 300, first slot 401;

Control mechanism 6, fifth cylinder 15, third motor 33, fourth motor 34, third gear 53, fourth gear 54, third empty slot 60, fourth connecting rod 64, fifth connecting rod 65, sixth connecting rod Rod 66, first support column 75, second support column 76, pawl 95, reed 96, baffle 97;

Actuator 7, third cylinder 13, fourth cylinder 14, execution base 21, second motor 32, first connecting rod 61, second connecting rod 62, third connecting rod 63, second groove 73, first opening 81, first connecting piece 85, second connecting piece 86, first plate 91, first sliding plate 92, bottom plate 93, first spring 87, U-shaped groove 931;

Welding mechanism 10, second shell 101, welding wire 102, first connection port 105, fourth spring 108, guide wheel 109, clamping column 111, connecting column 112, first empty slot 115, first ball 116, first through Hole 121, second through hole 122, third through hole 123, fourth through hole 124, first ventilation port 131, second connection port 132, second conduit 141, first guide port 151;

Cutting mechanism 50, fifth motor 35, seventh connecting rod 67, placement slot 80, third housing 125, fifth opening 152, sixth opening 156, seventh opening 157, first transmission gear 161, first driving gear 162 , the second rack 163, the second transmission gear 164, the third transmission gear 165, the second driving gear 166, the cutter 170, and the fourth chute 171.

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

Referring to Figure 1-20, an automatic welding device with an adjustable stroke includes a base 1. Fixing mechanisms 3 for fixing the material to be welded are installed on opposite sides of the base 1; the other two sides of the base 1 are respectively A lifting mechanism 2, an actuator 7 and a control mechanism 6 are installed. The lifting mechanism 2 is slidingly connected to one side of the actuator 7, and the other side of the actuator 7 is hingedly connected to the control mechanism 6; the actuator 7 also has A welding mechanism 10 is installed, a starting mechanism 5 for starting and stopping the welding mechanism 10, and a cutting mechanism 50 for cutting the welding wire; the cutting mechanism 50 is controlled and started by the triggering mechanism 4 installed on the actuator 7. Through the above structure, the deformation of the shape of the welded piece caused by the change of the position of the welded piece during the welding process is prevented, and the welding can be automatically started and stopped to complete the welding.

Referring to Figures 1-3, the lifting mechanism 2 includes a first motor 31 fixedly connected to the base 1. The output shaft of the first motor 31 is connected and fixed to the first gear 51. The first gear 51 meshes with the second gear 52. The second gear 52 It is an annular ring gear, one side of which is rotatably connected to the base 1. The second gear 52 is symmetrically meshed with a first rack 70 on both sides. The end of the first rack 70 is fixed with a first guide post 266. The base 1 is provided with There is a first guide groove 267, and the first guide post 266 slides with the first guide groove 267. The first guide post 266 is fixed on the first rack 70 to ensure that the position of the first rack 70 will not be offset; The first racks 70 on both sides are respectively fixed with inclined first grooves 45. A first cylinder 11 is installed in the first groove 45 with sliding fit. The first cylinder 11 penetrates the transverse first chute 41 and slides with it. . One end of the two first cylinders 11 is respectively fixedly connected with an arc-shaped first restricting member 71. The first restricting member 71 is provided with an arc-shaped second chute 42. The two ends of the first restricting members 71 on both sides are respectively provided with The second sliding groove 42 is connected with the second restricting member 72 in sliding fit. By designing the first limiting member 71 and the second limiting member 72 and controlling and changing their horizontal positions, it is convenient to control the specific traveling range of the actuator.

Referring to Figures 3-5, the actuator 7 includes a second motor 32 fixedly connected to the base 1. The output shaft of the second motor 32 is fixedly connected to a first connecting rod 61. The first connecting rod 61 is connected to the execution base 21. The execution base 21 is elastically and slidingly connected with a first connecting piece 85. A second connecting piece 86 is installed on the end side of the first connecting piece 85 extending out of the execution base 21. The second connecting piece 86 is connected to the fourth cylinder 14. The fourth cylinder 14 contacts and slides with the inner wall of the first restricting member 71 of the lifting mechanism 2. By changing the first restricting member 71, the position of the fourth cylinder 14 is changed, thereby adjusting the subsequent position of the second connecting rod 62 relative to the first sliding plate 92. Change of location. The other end of the first connecting member 85 extending out of the execution base 21 is hinged with one end of the second connecting rod 62, and the other end of the second connecting rod 62 is hinged with the second groove member 73. The upper and lower sides of the second groove member 73 are A first sliding plate 92 is symmetrically provided and fixedly connected to the base 1, and a second groove member 73 slides between the upper and lower first sliding plates 92; a third connecting rod 63 is slidably provided in the second groove member 73, and the third connecting rod 63 slides up and down along the second groove member 73; a bottom plate 93 is provided between the second groove member 73 and the base 1, and the bottom plate 93 slides with the upper and lower first sliding plates 92, and a U-shaped groove 931 is provided on the bottom plate 93; The third connecting rod 63 passes through the U-shaped groove 931 and slides with the U-shaped groove 931 . The setting of the actuator 7 will provide driving force for the lifting and displacement of the welding mechanism 10, and at the same time, the control of the actuator 7 will complete the change of its travel range.

Referring to Figure 4, the execution base 21 is provided with a first opening 81. A first plate 91 is disposed in the first opening 81. The first plate 91 is in sliding fit with the execution base 21. There is a first plate 91 on one side of the first plate 91. The first spring 87 has one end fixed to the first plate 91 and the other end fixed to the execution base 21. There is a third cylinder 13 inside the first spring 87, and the right end of the third cylinder 13 is fixed to the first plate 91. , the left end of the third cylinder 13 passes through the first opening 81 and is in sliding fit with the execution base 21 . The left end of the third cylinder 13 is fixed with a first connecting piece 85 , and the first connecting piece 85 is in sliding fit with the execution base 21 . The first connecting member 85 is allowed to elastically slide and expand and contract within the execution base 21, thereby controlling the rotation radius of the second link 62.

Referring to Figures 6-7, the control mechanism 6 includes a fourth link 64 with one end hinged to the bottom plate 93 of the actuator 7. The other end of the fourth link 64 is hinged to one end of the fifth link 65, and the other end of the fifth link 65 is hinged. Hinged on the side away from the center of the third gear 53, the third gear 53 is mounted on the base 1 for rotation, the third gear 53 meshes with the fourth gear 54 for transmission, and the third motor 33 for driving the rotation of the fourth gear 54 is connected to the base. 1 is fixedly connected; the base 1 is provided with a third empty slot 60, the fourth motor 34 is fixedly installed in the third empty slot 60, the output shaft of the fourth motor 34 is fixedly connected with a sixth connecting rod 66, and the sixth connecting rod 66 is away from A first support column 75 is fixed at one end of the fourth motor 34 . The first support column 75 is symmetrically hingedly mounted with a pawl 95 . The sixth connecting rod 66 is located at the rear end of the first support column 75 and is also fixed with a second support column 76 , the second support column 76 is equipped with a reed 96, the middle part of the reed 96 is sleeved on the second support column 76, the two ends of the reed 96 respectively conflict with the pawl 95; between the pawl 95 and the third gear 53 An arc-shaped baffle 97 is provided, and the baffle 97 is fixedly connected to the base 1. Specifically, see Figure 7, fifth cylinders 15 are provided at both ends of the baffle 97, and the fifth cylinder 15 is fixedly connected to the baffle 97. The end of the cylinder 15 away from the baffle 97 is fixed to the welding base 1 . The control mechanism 6 drives and controls the third motor 33 and the fourth motor 34 to complete the rotation and locking of the third gear 53, and further controls the position of the bottom plate 93 to facilitate the cooperation with the actuator 7 to complete the lifting and lowering of the welding mechanism 10. Range control.

Referring to Figures 11-12, the welding mechanism 10 includes a second housing 101, which is fixedly connected to the third connecting rod 63 of the actuator 7. The first connection port 105 and the upper end of the second housing 101 are provided with a pair of rotating guide wheels 109. The welding wire 102 used for welding is located in the middle of the pair of guide wheels 109; a clamping column 111 is provided below the guide wheels 109. A fourth spring 108 is provided below the clamping column 111. The upper end of the fourth spring 108 is connected to the clamping column 111, and the lower end is connected to the connecting column 112. A first through hole 121 is provided in the center of the clamping column 111. The diameter of the hole 121 is larger than the diameter of the welding wire 102. The inner wall of the first through hole 121 is provided with an upwardly inclined first hollow groove 115. The first hollow groove 115 is provided with a first sphere 116. The first sphere 116 and the first hollow groove are arranged 115 sliding fit; the connecting column 112 is threaded with the second shell 101, the upper end of the connecting column 112 is provided with a second through hole 122, the diameter of the second through hole 122 is larger than the diameter of the welding wire 102, the lower end of the connecting column 112 is provided with There is a third through hole 123. The diameter of the third through hole 123 is equal to the diameter of the welding wire 102. The welding wire 102 penetrates the first through hole 121, the second through hole 122 and the third through hole 123 and then extends from the lower end of the second housing 101; The connecting column 112 is provided with a first vent 131 in the radial direction, and the second housing 101 is provided with a fourth through hole 124 at the connecting column 112. The diameter of the fourth through hole 124 is larger than the diameter of the lower end of the connecting column 112; The upper end of the second housing 101 is provided with a second connection port 132. The second connection port 132 is equipped with a second conduit 141. The welding wire 102 for welding is provided in the second conduit 141. The base 1 is provided with a first guide port 151. The other end of the second conduit 141 is connected to the first guide port 151 . The welding mechanism 10 will allow the protective gas to fully surround the welding wire 102, and at the same time, after the welding is completed, the first sphere 116 and the clamping column 111 will cooperate to evacuate the welding wire 102 from the welding port to prevent the residual temperature of the welding port from melting the welding wire 102 and thereby smearing it. Welding joint.

Referring to Figures 8-10, the starting mechanism 5 includes a first housing 47, which is fixedly connected to the third connecting rod 63 of the actuator 7; the first housing 47 is longitudinally provided with a first slot 401. A second spring 99 is provided in a slot 401. The upper end of the second spring 99 is connected to the first housing 47, and a first blocking member 37 is fixed at the lower end. The first blocking member 37 slides up and down in the first slot 401. A fourth opening 300 is provided at the lower end of the barrier member 37, and a first protruding member 100 fixed to the base 1 is provided below the first barrier member 37. The longitudinal center of the first protruding member 100 is aligned with the first barrier member 37; The upper end of a housing 47 is provided with a third opening 251 that communicates with the first slot 401 . One end of the first conduit 98 is connected with the third opening 251 , and the other end is connected with the first connection port 105 of the welding mechanism 10 . The first conduit 98 is used to introduce welding shielding gas. The setting of the starting mechanism 5 is convenient for controlling the starting and closing of the welding machine mechanism. By cooperating with the bottom plate 93, the starting and lifting are coordinated.

Referring to Figures 13-15, the cutting mechanism 50 includes a third housing 125. The fifth motor 35 is fixedly connected to the third housing 125. A placement slot 80 is provided on the upper surface of the third housing 125, and the output shaft of the fifth motor 35 is fixedly connected. There is a seventh connecting rod 67. One end of the seventh connecting rod 67 penetrates the side wall of the placing groove 80 and is provided with a first transmission gear 161 in the placing groove 80. A first driving gear 162 is fixed on the side of the first transmission gear 161. The driving gear 162 meshes with the upper tooth surface of the second rack 163, the first transmission gear 161 meshes with the second transmission gear 164, the second transmission gear 164 meshes with the third transmission gear 165, and the third transmission gear 165 A second driving gear 166 is fixed on the side, and the second driving gear 166 can mesh with the lower tooth surface of the second rack 163; when the first driving gear 162 meshes with the upper tooth surface of the second rack 163, the second driving gear 166 meshes with the lower tooth surface of the second rack 163. The gear 166 does not mesh with the lower tooth surface of the second rack 163; a cutter 170 is fixed on one end of the second rack 163, the third housing 125 is provided with a fourth chute 171, and the cutter 170 slides with the fourth chute 171 ; The upper surface of the third housing 125 is provided with a sixth opening 156 extending downward. The sixth opening 156 is located on the path of the reciprocating movement of the tool 170. The third housing 125 is provided with a fifth opening 152. The fifth opening 152 is connected to The lower end of the sixth opening 156 is connected, and the end of the second conduit 141 away from the second connection port 132 is connected with the fifth opening 152. The welding wire 102 for welding passes through the sixth opening 156 and the fifth opening 152 and then passes into the second conduit 141. , specifically, with reference to Figures 8, 13, and 15, the base 1 is provided with a seventh opening 157, the sixth opening 156 is aligned with the central axis of the seventh opening 157, and the welding wire 102 passes through the sixth opening 156 and the seventh opening 157 to pass into the second Catheter 141. The cutting mechanism 50 will cut the welding wire 102. After the cutting is completed, the welding will continue for a short distance. At this time, a distance difference occurs between the front-end welding wire 102 and the rear-end welding wire 102, providing a distance for the subsequent welding mechanism 10 to evacuate the welding wire 102.

Referring to Figures 16-17, the triggering mechanism 4 is installed on the back of the base plate 93 of the actuator 7. The back of the base plate 93 is provided with a second empty slot 181, and the first rotating groove 181 is installed in the second empty slot 181. Shaft 191, the first rotating shaft 191 is provided with a rotating rod 192 at one end away from the bottom plate 93. The rotating rod 192 rotates with the first rotating shaft 191. The rotating rod 192 is provided with an eighth opening 158, and a sliding rod 192 is provided in the eighth opening 158. The matching third plate 201 has a third spring 203 fixed on the lower surface of the third plate 201. One end of the third spring 203 away from the third plate 201 is fixed to the rotating rod 192. The third plate 201 is fixed with a sixth cylinder. 206. A first connecting rod 211 is fixed at one end of the sixth cylinder 206 away from the third plate member 201. A first sliding block 212 is provided at one end of the first connecting rod 211 away from the sixth cylinder 206. The first sliding block 212 and the second empty slot The inner edge of 181 slides and fits; the lower end of the rotating rod 192 is provided with a first trigger sensor 222; the lower end of the rotating rod 192 is fixed with an eighth cylinder 228 on one side of the base plate 93, and the base plate 93 is provided with a third chute 233, and the eighth cylinder 228 is in sliding fit with the third slide groove 233 . The trigger mechanism 4 cooperates with the cutting mechanism 50 to set the start of the cutting mechanism 50, and at the same time, the control of the trigger mechanism 4 takes into account the different states during reciprocating welding. Preferably, the first trigger sensor 222 is a miniature piezoresistive pressure sensor or a proximity sensor, such as a model 82.5NOF square proximity switch sensor.

Referring to Figures 18-20, the fixing mechanism 3 includes a second fixed base 218. The second fixed base 218 is fixedly connected to the base 1. The sixth motor 36 is fixedly connected to the second fixed base 218. The output shaft of the sixth motor 36 is fixedly connected to The fourth transmission gear 204 meshes with the first rotating plate 250, and a second rotating plate 208 is fixedly installed on one side of the first rotating plate 250; the circumference of the second rotating plate 208 is hinged with one end of the second connecting rod 209 , the other end of the second connecting rod 209 is hinged with the fixed plate 210. The fixed plate 210 is provided with a second rotating column 215. The second rotating column 215 rotates with the fixed plate 210, and the second rotating column 215 is away from the first rotating plate. A third rotating plate 216 is fixed at one end of 250. The second rotating plate 208 has a circular hole in the center. The inner circumferential wall of the circular hole is provided with a fifth chute 236. The outer circumference of the third rotating plate 216 is provided with a fifth chute 236. The third rotating plate 216 is a slidingly fitted annular protrusion, and the third rotating plate 216 is rotated and matched with the second rotating plate 208 through the fifth chute 236. A third fixed base 217 is fixed on the side of the third rotating plate 216 away from the second rotating column 215. The lower end of the three fixed bases 217 is fixedly connected to the base 1. The setting of the fixing mechanism 3 ensures that the pipe fitting will not change its position during welding and affect the progress of the welding.

Working process and principle of the present invention:

Before welding, the worker places the pipe to be welded in the fixing mechanism 3 and starts the sixth motor 36. The sixth motor 36 drives the fourth transmission gear 204 to rotate. The fourth gear 54 drives the first rotating plate 250 to rotate. The rotating plate 250 drives the second rotating plate 208 to rotate, the second rotating plate 208 drives the second connecting rod 209 to move, and the movement of the second connecting rod 209 drives the fixed plate 210 to rotate around the second rotating column 215 to fix the pipe fittings.

During welding, the second motor 32 is driven. The second motor 32 drives the first connecting rod 61 to rotate. The first connecting rod 61 drives the execution base 21 to rotate. The rotation of the execution base 21 drives the first connecting piece 85 to rotate. The rotation of the first connecting piece 85 drives the The second link 62 moves. The movement of the second link 62 drives the movement of the second groove 73. The movement of the second groove 73 will drive the movement of the third link 63. The movement of the third link 63 will also drive the movement of the bottom plate 93. The movement of the bottom plate 93 drives the movement of the fourth link 64, and the movement of the fourth link 64 drives the rotation of the fifth link 65. At this time, according to the rotation direction of the fifth link 65, the fourth motor 34 in the control mechanism 6 is started to rotate in the opposite direction. The rotation of the four motors 34 drives the sixth connecting rod 66 to rotate. The rotation of the sixth connecting rod 66 drives the pawl 95 to go beyond the range of the baffle 97. The pawl 95 goes out of the range. The reed 96 resets and drives the pawl 95 to move downward. The pawl 95 will move downward. The pawl 95 contacts the third gear 53 to prevent its movement. The bottom plate 93 no longer moves. The second motor 32 continues to rotate, driving the actuator 7 to continue to move. The actuator 7 continues to move to drive the second groove. 73 slides on the first sliding plate 92, and the second groove member 73 continues to move to drive the third connecting rod 63 to slide in the U-shaped groove of the bottom plate 93. While the third connecting rod 63 slides in the U-shaped groove, it moves in the second groove. The member 73 slides inside, and the two cooperate to drive the third link 63 to move downward. The third link 63 moves downward, driving the starting mechanism 5 and the welding mechanism 10 to move downward. When the third link 63 moves to the U-shape When the groove transverse area is reached, the first blocking member 37 in the starting mechanism 5 contacts the first protruding member 100. The first protruding member 100 causes the first blocking member 37 to move upward, and the first blocking member 37 moves upward to drive the second spring 99. Compression, the movement of the first blocking member 37 moves the fourth opening 300 to the third opening 251, the protective gas flows into the first conduit 98, the blowing of the protective gas causes the clamping column 111 to move downward, and the downward movement of the clamping column 111 drives The fourth spring 108 is compressed, and the protective gas flows into the first through hole 121. The first ball 116 is blown by the gas and slides in the first empty groove 115, away from the welding wire 102. The gas continues to flow through the second through hole 122. The gas is introduced into the first vent 131, and the first vent 131 introduces the gas around the bottom welding wire 102, and the welding mechanism 10 is powered on to start welding.

Referring to Figure 16, when the second groove 73 drives the cutting mechanism 50 on the third link 63 to move to the triggering mechanism 4, the first transmission gear 161 contacts the left end of the first trigger sensor 222. See Figure 14, the fifth motor The output shaft of 35 starts to rotate clockwise. The rotation of the output shaft of the fifth motor 35 drives the seventh connecting rod 67 to rotate clockwise. The seventh connecting rod 67 drives the first transmission gear 161 to rotate clockwise. See Figure 16, Figure 14 and Figure 16 The first transmission gear 161 drives the rotating rod 192 of the triggering mechanism 4 to move counterclockwise around the first rotating axis 191. The movement of the rotating rod 192 drives the eighth cylinder 228 to slide in the third chute 233. The movement of the rotating rod 192 drives the The position of the third plate 201 changes. The change of the position of the third plate 201 drives the first connecting rod 211 connected to the sixth cylinder 206 to swing counterclockwise. The movement of the first connecting rod 211 drives the first slider 212 to move in the second empty slot 181 When the first slider 212 slides to the sharp corner of the second empty groove 181, the first slider 212 drives the first connecting rod 211 to move downward, and the first connecting rod 211 drives the third connecting rod connected to the sixth cylinder 206. The plate 201 slides in the eighth opening 158, and the movement of the third plate 201 drives the third spring 203 to compress. When the first slider 212 slides through the sharp corner of the second empty groove 181, the third spring 203 resets, driving the third spring 203 to compress. The third plate 201 slides, and the sliding of the third plate 201 drives the first connecting rod 211 connected to the sixth cylinder 206 to move. The movement of the first connecting rod 211 drives the first slider 212 to slide on the left side of the second empty slot 181. The sliding block 212 slides synchronously to generate a counterclockwise rotation force on the rotating rod 192. See Figure 17, and drives the rotating rod 192 to continue to rotate counterclockwise until the eighth cylinder 228 moves to the right end of the third chute 233.

Referring to Figure 13, the direction of this view is opposite to that of Figure 14, so the rotation direction of the output shaft of the fifth motor 35 should be counterclockwise in this view. The fifth motor 35 continues to drive the seventh connecting rod 67 to rotate counterclockwise. The rod 67 drives the first transmission gear 161 to rotate counterclockwise. The movement of the first transmission gear 161 drives the first driving gear 162 to rotate counterclockwise. At the same time, it drives the second transmission gear 164 to rotate clockwise. The rotation of the first driving gear 162 drives the second rack. 163 movement, the movement of the second rack 163 drives the cutter 170 to slide in the fourth chute 171, and the cutter 170 cuts the welding wire 102. After the shearing is completed, the first driving gear 162 continues to rotate, and the second transmission gear 164 drives the third transmission gear. 165 moves, the third drive gear 165 drives the second drive gear 166 to move, the second drive gear 166 drives the second rack 163 to move in the reverse direction away from the welding wire 102, and the second rack 163 drives the cutter 170 to move in the reverse direction away from the welding wire 102.

Referring to Figure 14, when the welding mechanism 10 performs reverse welding, the fifth motor 35 rotates counterclockwise, driving the seventh connecting rod 67 to rotate counterclockwise, and the seventh connecting rod drives the first transmission gear 161 to rotate counterclockwise, see Figure 13 , the direction of this view is opposite to that of Figure 14, so the rotation direction of the output shaft of the fifth motor 35 should be clockwise in this view. The first transmission gear 161 drives the second transmission gear 164 to rotate counterclockwise, and the second transmission gear 164 drives The second driving gear 166 rotates clockwise. The second driving gear 166 drives the second rack 163 to move outward. The second rack 163 drives the cutter 170 to complete shearing. The first driving gear 161 continues to move and drives the first driving gear 162 to move smoothly. After the hour hand rotates to move the second rack 163 in the reverse direction to move the cutter 170 away from the welding wire 102, the fifth motor 35 stops.

After the shearing is completed, the third connecting rod 63 moves to the slope of the U-shaped groove and cooperates with the second groove member 73. The third connecting rod 63 begins to rise. The rising of the third connecting rod 63 drives the starting mechanism 5 to rise, and the starting mechanism 5 rises. Far away from the first protruding part 100, the second spring 99 returns to its original position, and the second spring 99 returns to drive the first blocking member 37 to move downward. The movement of the first blocking member 37 moves the fourth opening 300 away from the third opening 251, stops the air supply, and welds. stop. After the air supply is stopped, the first ball 116 of the welding mechanism 10 falls to the bottom of the first empty groove 115 to clamp the welding wire 102. At the same time, the fourth spring 108 is reset. The reset of the fourth spring 108 drives the clamping column 111 to rise. Through static friction, , the first sphere 116 drives the welding wire 102 to rise away from the welding port, and subsequent welding will push the front welding wire 102 to the welding port through the welding wire 102 that continues to advance from behind.

After welding from left to right is completed, the fourth motor 34 reverses, and the reverse rotation of the fourth motor 34 drives the sixth connecting rod 66 to move in the reverse direction, and the sixth connecting rod 66 moves in the opposite direction to drive the end of the pawl 95 to slide onto the baffle 97 , the actuator 7 drives the second groove 73 to continue to move to the right, the third motor 33 starts, the rotation of the third motor 33 drives the fourth gear 54 to rotate, the rotation of the fourth gear 54 drives the third gear 53 to rotate, and the third gear 53 rotates The fifth link 65 is driven to rotate, and the fifth link 65 drives the fourth link 64 to move. The movement of the fourth link 64 drives the bottom plate 93 to move synchronously with the second groove 73 on the first slide 92. When the movement reaches the next When welding the point, the actuator 7 rotates to the semicircle. The actuator 7 continues to rotate and pulls the second link 62 back to the left. At the same time, the pawl 95 in the control mechanism 6 blocks the third gear 53 to complete the reverse welding. The starting mechanism 5, welding mechanism 10 and triggering mechanism 4 in reverse welding are the same as those in forward welding.

After the first round of welding of the left and right ends is completed, the third connecting rod 63 and the bottom plate 93 are pulled back to the left end through the actuator 7. See Figure 2, the first motor 31 is started, and the first motor 31 drives the first gear 51 to rotate. The rotation of the first gear 51 drives the rotation of the second gear 52. The second gear 52 drives the movement of the first racks 70 on both sides. The movement of the first rack 70 drives the first groove member 45 to move up and down. The movement of the first groove member 45 cooperates with the movement of the first gear 51. The chute 41 drives the first cylinder 11 to move toward the center of the second gear 52. See Figures 3 and 4. The movement of the first cylinder 11 drives the first limiting member 71 to move toward the center of the second gear 52. The movement of the first limiting member 71 drives the fourth The cylinder 14 moves, and the fourth cylinder 14 drives the first connecting member 85 fixed by the second connecting member 86 to move to the right. The movement of the first connecting member 85 drives the first plate 91 fixed by the third cylinder 13 to slide, and the first plate 91 The first spring 87 is driven to stretch, and the movement of the first connecting member 85 synchronously drives the movement of the second link 62. At the same time, the third motor 33 in the control mechanism 6 cooperates with the rotation to drive the bottom plate 93 to move to the right synchronously, and the movement of the first connecting member 85 is reduced. The welding range in reciprocating welding is increased, so that the pipe fittings can be welded gradually.

Claims

An automatic welding device with an adjustable stroke, including a base (1), characterized in that: fixing mechanisms (3) for fixing materials to be welded are respectively installed on opposite sides of the base (1); the base (1) ) are respectively equipped with a lifting mechanism (2), an actuator (7) and a control mechanism (6). The lifting mechanism (2) is slidingly connected to one side of the actuator (7), and the actuator (7) ) is hinged with the control mechanism (6); the actuator (7) is also equipped with a welding mechanism (10), a starting mechanism (5) for starting and stopping the welding mechanism (10), and a A cutting mechanism (50) for cutting the welding wire; the cutting mechanism (50) is controlled and started by a trigger mechanism (4) installed on the actuator (7).
An automatic welding device with adjustable stroke according to claim 1, characterized in that the lifting mechanism (2) includes a first motor (31) fixedly connected to the base (1), and the first motor (31) The output shaft is connected and fixed to the first gear (51). The first gear (51) meshes with the second gear (52). The second gear (52) is symmetrically meshed with a first rack (70) on both sides. The first rack The end of (70) is fixedly provided with a first guide post (266), the base (1) is provided with a first guide groove (267), and the first guide post (266) is slidably matched with the first guide groove (267) ; The first racks (70) on both sides are respectively fixed with inclined first grooves (45), and a first cylinder (11) is installed in the first groove (45) with sliding fit. The first cylinder (11) 11) Penetrating the first chute (41) and slidingly fitting; one end of the two first cylinders (11) is fixedly connected with an arc-shaped first limiting piece (71), and the first limiting piece (71) is provided with an arc. The second chute (42) is shaped like a second chute (42), and the two ends of the first limiting pieces (71) on both sides are respectively provided with second limiting pieces (72) that slide with the second chute (42).
An automatic welding device with adjustable stroke according to claim 1, characterized in that the actuator (7) includes a second motor (32) fixedly connected to the base (1), and the second motor (32) is fixedly connected to the base (1). The output shaft is fixedly connected to the first connecting rod (61), and the first connecting rod (61) is connected to the execution base (21). A first connecting piece (85) is elastically and slidingly connected in the execution base (21). A fourth cylinder (14) is installed on one side of the end of the member (85) extending out of the execution base (21). The fourth cylinder (14) contacts the inner wall of the first limiting member (71) of the lifting mechanism (2). and sliding fit; the other side of the end of the first connecting piece (85) extending out of the execution base (21) is hinged with one end of the second connecting rod (62), and the other end of the second connecting rod (62) is connected with the first connecting rod (62). The two groove members (73) are hinged. The second groove member (73) is symmetrically provided with a first sliding plate (92) fixedly connected to the base (1) on both upper and lower sides. The second groove member (73) is located on the upper and lower first sliding plate (92). 92); the second groove member (73) is provided with a third connecting rod (63) sliding up and down along the second groove member (73); the second groove member (73) slides up and down along the second groove member (73); There is a bottom plate (93) between (73) and the base (1). The bottom plate (93) slides with the upper and lower first sliding plates (92). The bottom plate (93) is provided with a U-shaped groove (931); The three-link rod (63) passes through the U-shaped groove (931) and slides with the U-shaped groove (931).
An automatic welding device with adjustable stroke according to claim 1, characterized in that the execution base (21) is provided with a first opening (81), and a first opening (81) is provided in the first opening (81). Plate (91), the first plate (91) is in sliding fit with the execution base (21), a first spring (87) is provided on one side of the first plate (91), and one end of the first spring (87) is connected to the The first plate (91) is fixed, and the other end is fixed to the execution base (21). A third cylinder (13) is provided inside the first spring (87), and the right end of the third cylinder (13) is connected to the first plate (91) Fixed, the left end of the third cylinder (13) penetrates the first opening (81) and slides with the execution base (21). The left end of the third cylinder (13) is fixed with a first connector (85). The first connector (85) slides with the execution base (21).
An automatic welding device with adjustable stroke according to claim 1, characterized in that the control mechanism (6) includes a fourth connecting rod (64) with one end hinged to the bottom plate (93) of the actuator (7) , the other end of the fourth connecting rod (64) is hinged with one end of the fifth connecting rod (65), and the other end of the fifth connecting rod (65) is hinged on the side away from the center of the third gear (53), and the third gear (53) ) is rotatably mounted on the base (1), the third gear (53) meshes with the fourth gear (54) for transmission, and the third motor (33) used to drive the fourth gear (54) to rotate is fixedly connected to the base (1) ; The base (1) is provided with a third empty slot (60), a fourth motor (34) is fixedly installed in the third empty slot (60), and the output shaft of the fourth motor (34) is fixedly connected with a sixth connecting rod. Rod (66), the sixth connecting rod (66) is fixed with a first support column (75) at one end away from the fourth motor (34), and the first support column (75) is symmetrically hinged and installed with a pawl (95). The connecting rod (66) is located at the rear end of the first support column (75) and is also fixed with a second support column (76). The second support column (76) is equipped with a reed (96), and the middle part of the reed (96) It is sleeved on the second support column (76), and the two ends of the reed (96) respectively conflict with the pawl (95); there is an arc between the pawl (95) and the third gear (53). The baffle (97) is fixedly connected to the base (1).
An automatic welding device with adjustable stroke according to claim 1, characterized in that the welding mechanism (10) includes a second housing (101), the second housing (101) and the actuator (7) The third connecting rod (63) is fixedly connected. The outer wall of the upper end of the second housing (101) is provided with a first connection port (105) that communicates with the inside of the second housing (101). The rotating guide wheel (109) and the welding wire (102) used for welding are located in the middle of a pair of guide wheels (109); a clamping column (111) is provided below the guide wheel (109), and the clamping column (111) ) is provided with a fourth spring (108) below, the upper end of the fourth spring (108) is connected to the clamping column (111), and the lower end is connected to the connecting column (112); the center of the clamping column (111) is provided with a first Through hole (121), the diameter of the first through hole (121) is larger than the diameter of the welding wire (102). The inner wall of the first through hole (121) is relatively provided with an upwardly inclined first empty groove (115), and the first empty groove (115) is 115) is provided with a first sphere (116), and the first sphere (116) is slidably matched with the first empty groove (115); the connecting column (112) is threaded with the second shell (101), and the connecting column (112) ) is provided with a second through hole (122) at the upper end. The diameter of the second through hole (122) is larger than the diameter of the welding wire (102). The lower end of the connecting post (112) is provided with a third through hole (123). The diameter of the through hole (123) is equal to the diameter of the welding wire (102). The welding wire (102) penetrates the first through hole (121), the second through hole (122), and the third through hole (123) and then exits from the second housing (101). ) protrudes from the lower end; the connecting column (112) is provided with a first vent (131) in the radial direction, and the second housing (101) is provided with a fourth through hole (124) at the connecting column (112). The diameter of the four-through hole (124) is larger than the diameter of the lower end of the connecting column (112); the upper end of the second housing (101) is provided with a second connection port (132), and the second connection port (132) is equipped with a second conduit (141) ), the welding wire (102) for welding is arranged in the second conduit (141), the base (1) is provided with a first guide port (151), and the other end of the second conduit (141) is connected to the first guide port (151) connected.
An automatic welding device with adjustable stroke according to claim 1, characterized in that the starting mechanism (5) includes a first housing (47), the first housing (47) and the actuator (7) The third connecting rod (63) is fixedly connected; the first housing (47) is provided with a first slot (401) longitudinally, and a second spring (99) is provided in the first slot (401). The upper end of (99) is connected to the first shell (47), and the first barrier member (37) is fixed at the lower end. The first barrier member (37) slides up and down in the first slot (401). The first barrier member (37) A fourth opening (300) is provided at the lower end, and a first protrusion (100) fixed to the base (1) is provided below the first barrier (37). The longitudinal center of the first protrusion (100) is in contact with the first barrier. The parts (37) are aligned; the upper end of the first housing (47) is provided with a third opening (251) that communicates with the first slot (401), and one end of the first conduit (98) is connected to the third opening (251) The other end is connected to the first connection port (105) of the welding mechanism (10).
An automatic welding device with adjustable stroke according to claim 1, characterized in that the cutting mechanism (50) includes a third housing (125), and the fifth motor (35) is fixed to the third housing (125). connection, a placement slot (80) is provided on the upper surface of the third housing (125), a seventh connecting rod (67) is fixedly connected to the output shaft of the fifth motor (35), and one end of the seventh connecting rod (67) is placed through The side wall of the groove (80) is provided with a first transmission gear (161) in the placement groove (80). A first driving gear (162) is fixed on the side of the first transmission gear (161). The first driving gear (162) It meshes with the upper tooth surface of the second rack (163), the first transmission gear (161) meshes with the second transmission gear (164), and the second transmission gear (164) meshes with the third transmission gear (165), A second driving gear (166) is fixed on the side of the third transmission gear (165), and the second driving gear (166) can mesh with the lower tooth surface of the second rack (163); the first driving gear (162) ) meshes with the upper tooth surface of the second rack (163), the second driving gear (166) does not mesh with the lower tooth surface of the second rack (163); one end of the second rack (163) is fixed with The cutter (170), the third housing (125) is provided with a fourth chute (171), the cutter (170) slides with the fourth chute (171); the upper surface of the third housing (125) extends downward to There is a sixth opening (156) located on the path of the reciprocating movement of the tool (170). The third housing (125) is provided with a fifth opening (152), and the fifth opening (152) is connected to the third opening (156). The lower ends of the six openings (156) are connected, the end of the second conduit (141) away from the second connection port (132) is connected with the fifth opening (152), and the welding wire (102) used for welding passes through the sixth opening (156) and the fifth opening (152). Five openings (152) lead into the second conduit (141).
An automatic welding device with adjustable stroke according to claim 1, characterized in that: the triggering mechanism (4) is installed on the back of the base plate (93) of the actuator (7), and the base plate (93 ) is provided with a second hollow slot (181) on the back, a first rotating shaft (191) is fixed in the second hollow slot (181), and a rotating shaft (191) is provided at one end of the first rotating shaft (191) away from the bottom plate (93). Rod (192), the rotating rod (192) rotates with the first rotating shaft (191), the rotating rod (192) is provided with an eighth opening (158), and the eighth opening (158) is provided with a sliding fitting third opening (158). Three plates (201), a third spring (203) is fixed on the lower surface of the third plate (201), and one end of the third spring (203) away from the third plate (201) is fixed to the rotating rod (192), so A sixth cylinder (206) is fixed to the third plate member (201), and a first connecting rod (211) is fixed at one end of the sixth cylinder (206) away from the third plate member (201). A first slider (212) is provided at one end of the sixth cylinder (206), and the first slider (212) is slidably matched with the inner edge of the second hollow groove (181); the lower end of the rotation rod (192) is provided with a first slider (212). A trigger sensor (222); an eighth cylinder (228) is fixed on the lower end of the rotating rod (192) on the side of the bottom plate (93), and the bottom plate (93) is provided with a third chute (233). The cylinder (228) is in sliding fit with the third slide groove (233).
An automatic welding device with adjustable stroke according to claim 1, characterized in that: the fixing mechanism (3) includes a second fixing base (218), the second fixing base (218) and the base (1 ) is fixedly connected, the sixth motor (36) is fixedly connected to the second fixed base (218), the output shaft of the sixth motor (36) is fixedly connected with a fourth transmission gear (204), and the fourth transmission gear (204) Engaged with the first rotating plate (250), a second rotating plate (208) is fixedly installed on one side of the first rotating plate (250); the circumference of the second rotating plate (208) is in contact with one end of the second connecting rod (209) Hinged, the other end of the second connecting rod (209) is hinged with the fixed plate (210), the fixed plate (210) is provided with a second rotating column (215), the second rotating column (215) and the fixed plate (210) Rotationally matched, a third rotating plate (216) is fixed at one end of the second rotating column (215) away from the first rotating plate (250), and the second rotating plate (208) is provided with a fifth chute (236). The outer circumference of the third rotating plate (216) rotates with the second rotating plate (208) through the fifth chute (236). The third rotating plate (216) is fixed on the side away from the second rotating column (215). A third fixed base (217), the lower end of which is fixedly connected to the base (1).