阅读说明：本技术 压滤机焊件用双枪自动焊接工装及双枪式自动氩弧电焊机 (Double-gun automatic welding tool for pressure filter weldment and double-gun type automatic argon arc welding machine ) 是由 王刚 王胜勇 王海霞 王庆森 梁金龙 于 2021-10-04 设计创作，主要内容包括：本发明公开了一种压滤机焊件用双枪自动焊接工装及双枪式自动氩弧电焊机,创新方案的要点是：将现有的压滤机焊件用双枪半自动焊接工装改进为双枪自动焊接工装,包括双焊组合平台及其焊件Ⅰ定位处、焊件Ⅱ推送装置、卸件气缸、脚踏开关,能自动装卸焊件；焊件Ⅱ推送装置可将焊件Ⅱ支架挂耳自动推送到位,并节省了焊件Ⅰ角钢支架和焊件Ⅱ支架挂耳手动预先点焊接；同时,双枪自动焊接工装与氩弧双枪移动机构配套使用,使双氩弧焊枪能同时自动焊接拉板轨道架的相间双不锈钢焊件两段直线焊缝。自动氩弧电焊机,使用该焊接工装,解决了现有双枪半自动焊接工装不能自动装卸焊件、不能全自动焊接,不适应不锈钢焊件的技术问题；产品改型升级,拓能增效。(The invention discloses a double-gun automatic welding tool for pressure filter weldment and a double-gun type automatic argon arc welding machine, and the key points of the innovative scheme are as follows: the existing double-gun semi-automatic welding tool for the filter press weldment is improved into a double-gun automatic welding tool, and the double-gun semi-automatic welding tool comprises a double-welding combined platform and a weldment I positioning part thereof, a weldment II pushing device, a weldment unloading cylinder and a foot switch, and can automatically load and unload the weldment; the weldment II pushing device can automatically push the hanger of the weldment II bracket in place, and manual pre-spot welding of the angle steel bracket of the weldment I and the hanger of the weldment II bracket is saved; meanwhile, the double-gun automatic welding tool is matched with the argon arc double-gun moving mechanism for use, so that the double argon arc welding guns can automatically weld two sections of linear welding seams of the alternate double stainless steel welding piece of the pull plate rail frame at the same time. The automatic argon arc welding machine solves the technical problems that the existing double-gun semi-automatic welding tool cannot automatically assemble and disassemble a weldment, cannot automatically weld and is not suitable for a stainless steel weldment; the product is modified and upgraded, and the efficiency can be increased.)

1. A double-gun automatic welding tool for filter press weldments is a tool for automatically loading and unloading filter press weldments and automatically welding two sections of linear welding seams by double guns, and comprises a double-welding combined platform, a weldment II pushing device, a weldment unloading cylinder and a foot switch; the method is characterized in that: the double-welding combined platform comprises a table type large platform, a tool platform, a gun moving platform and a weldment I positioning part; the weldment II pushing device comprises a weldment II pushing platform, a weldment II storage rack, a weldment II pushing cylinder and a weldment II pushing plate, wherein the weldment II storage rack comprises a weldment II storage groove, a weldment II storage groove seat and a groove frame reinforcing rib, and the weldment II pushing cylinder is a TCM 40X 125S type cylinder and is provided with three piston rods; the unloading cylinder is an SDA25X50 type cylinder and is provided with a single piston rod; the foot switch comprises a push piece foot switch and a reset foot switch; the interconnection relationship is: the gun moving platform is welded at the left front part of the table type large platform, the tool platform is positioned at the right side of the gun moving platform and welded on the table type large platform, and the tool platform and the gun moving platform are parallelly and alternately positioned to form a welding part I positioning part to form a double-welding combined platform; the notch of the storage tank of the double weldment II faces the left and is respectively and vertically welded at the two ends of the storage tank bracket, the three tank frame reinforcing ribs are respectively welded at the intersection of the storage tank of the double weldment II and the storage tank bracket to form a storage frame of the weldment II, and the storage frame of the weldment II is welded at the left side of the tooling platform; the push platform of the weldment II is arranged on the tool platform close to the storage rack of the weldment II, the push plate of the weldment II is placed on the push platform of the weldment II, the push cylinder of the weldment II is assembled on the tool platform, three piston rods of the push cylinder of the weldment II are connected with the push plate of the weldment II, and the push plate of the weldment II can be pushed into the storage tank bracket and the lugs of the brackets of the weldment II are in equal-height contact; a piston rod of the unloading cylinder is aligned with the positioning position of the weldment I, namely an angle steel bracket aligned with the weldment I is arranged on the large table-type platform, so that the piston rod of the unloading cylinder can push out the weldment; the push pedal switch and the reset pedal switch are arranged on the ground beside the large desk-type platform; each switch is connected with the PLC program control system.

2. The double-gun automatic welding tool for the filter press weldment according to claim 1, wherein: the table type large platform is provided with four branches , wherein the height of the branch is 1 meter; the specification of the tool platform corresponds to that of the double-gun automatic welding tool; the gun moving platform is corresponding to the double-gun moving mechanism in specification, the height of the tool platform and the gun moving platform is smaller than the single-side width of the angle iron bracket of the weldment I, and a gap at the positioning position of the weldment I is formed between the double platforms.

3. The double-gun automatic welding tool for the filter press weldment according to claim 1, wherein: the specification of the weldment II pushing platform is matched with that of the weldment II pushing plate; the storage tank of the weldment II is a cuboid storage tank, end plates are not arranged at two ends of the storage tank, a notch is formed in one surface of the storage tank, and the section of the storage tank is larger than a hanger of a bracket of the weldment II; the storage tank bracket is a double-weldment II storage tank bracket and is provided with double-rectangular storage tank bracket holes, and the storage tank bracket holes are larger than the weldment II bracket lugs; the groove frame reinforcing ribs are triangular reinforcing ribs; the pushing plate of the weldment II is provided with an opening of the weldment II with double pushing plates, and the width of the opening is larger than the length of a hanger of the bracket of the weldment II.

4. A double-gun type automatic argon arc welding machine comprises a welding power supply, an arc striking and stabilizing device, a double-gun moving mechanism, a double-gun welding tool, a wire feeding device, an air supply system, a water cooling system and a PLC program control system; the method is characterized in that: the double-gun welding tool is the double-gun automatic welding tool for the filter press weldment in the claims 1-3; the double-gun type automatic argon arc welding machine has a double-welding function, namely, the function of automatically welding two sections of linear welding seams of two interphase double-welded parts by one electric welding device.

Technical Field

The invention belongs to the technical field of double-gun type automatic argon arc welding machines, and relates to a double-gun automatic welding tool for pressure filter weldments.

Background

The electric welding machine is a welding device which utilizes high-temperature electric arcs generated when positive and negative poles are short-circuited instantly to melt welding flux and a welded material on an electric welding rod so as to combine the welded material with a contacted object; an automatic welding machine, which automatically feeds welding wires to a longer linear welding seam and a regular curve welding seam for automatic welding; an automatic argon arc welding machine which takes the argon arc welding machine as a welding power supply; a double-gun type automatic argon arc welding machine is an automatic argon arc welding machine with a double-welding function, namely, one electric welding machine can automatically weld two sections of linear welding seams of two interphase double-welded parts at the same time; the device is generally composed of a welding power supply (argon arc welding machine), an arc striking and stabilizing device, a double-gun moving mechanism, a double-gun welding tool, a wire feeding device, an air supply system, a water cooling system, a PLC program control system and the like.

The double-gun welding tool mainly comprises a double-welding tool table, a weldment positioning device, an electric welding protective cover and a piece unloading cylinder; the double-gun welding tool and the movable double-welding-gun mechanism are matched for use, so that two smelting-maintaining welding guns can automatically weld two sections of linear welding seams of alternate double-welding pieces of the filter press pulling plate track frame at the same time; the double-gun welding tool belongs to a semi-automatic welding tool, can automatically unload workpieces, cannot automatically feed workpieces, needs manual operation to weld double-bracket mounting earlobes of a welding part II of a pulling plate track frame on a designed position of an angle iron bracket of a welding part I in advance in a straight spot mode, and then is placed on a welding part positioning device; the welding method is suitable for welding small-batch filter press weldments; see patent "double gun welding tool for filter press weldment and gas shielded double gun automatic electric welding equipment" (202110781107.4).

The double-gun welding tool for the existing filter press weldment has the following defects: (1) the welding position of the weldment II double-bracket mounting lug cannot be automatically pushed, and the welding position of the weldment II double-bracket mounting lug of the pulling plate rail frame is manually and preliminarily welded at the designed position of the angle steel bracket of the weldment I and then placed on a weldment positioning device; the welding of large-batch filter press weldments is not suitable; (2) the double-gun welding tool is matched with a double-two melting-maintaining welding gun mechanism for use, and is not suitable for welding stainless steel weldments of the filter press; the Jingjin environmental protection products company is the most global filter press manufacturer, and in order to meet the market demand for a large number of filter presses, the modification and upgrade of double-gun welding tools for filter press weldments are urgent.

Disclosure of Invention

The invention aims to overcome the defects of the conventional double-gun welding tool for the filter press weldment, solve the technical problems that the double-gun welding tool cannot automatically assemble and disassemble the weldment, cannot automatically weld and is not suitable for stainless steel weldments, and provide the double-gun automatic welding tool for the filter press weldment and the double-gun type automatic argon arc welding machine; the invention relates to a double-gun type automatic argon arc welding machine, in particular to a double-gun type automatic argon arc welding machine with a double-gun automatic welding tool for filter press weldment, which is shortened for short because the number of characters of the patent name is limited.

The invention solves the problems of the prior art and adopts the innovative technical scheme that: the utility model provides a pressure filter weldment is with two rifle automatic weld frock (hereinafter be referred to as two rifle automatic weld frock), is the frock of automatic handling pressure filter weldment and two-shot automatic weld two sections sharp welding seams, and the main points of general technical scheme are, the overall structure that promptly innovates compares with prior art, and it has outstanding substantive characteristics: the existing double-gun semi-automatic welding tool for the filter press weldment is improved into a double-gun automatic welding tool, and the double-gun semi-automatic welding tool comprises a double-welding combined platform, a weldment I positioning part, a weldment II pushing device, an unloading cylinder and a foot switch; the weldment II pushing device can automatically push the hanger of the weldment II bracket in place, and manual pre-spot welding of the angle steel bracket of the weldment I and the hanger of the weldment II bracket is saved; meanwhile, the double-gun automatic welding tool is matched with the argon arc double-gun moving mechanism for use, so that the double argon arc welding guns can simultaneously and automatically weld two sections of linear welding seams of the alternate double stainless steel welding piece of the pull plate track frame; therefore, the technical problems that the existing double-gun semi-automatic welding tool cannot automatically assemble and disassemble weldments, cannot perform full-automatic welding and is not suitable for stainless steel weldments are solved.

The specific design scheme is as follows: (1) the double-welding combined platform comprises a table type large platform, a tool platform, a gun moving platform and a weldment I positioning part; the table type large platform is provided with four branches , wherein the height of the branch is 1 meter; the specification of the tool platform corresponds to that of a double-gun automatic welding tool, the specification of the gun moving platform corresponds to that of a double-gun moving mechanism, the height of the tool platform and the gun moving platform is smaller than the single-side width of an angle iron bracket of a weldment I, and a gap at the positioning position of the weldment I is formed between the double platforms; (2) the weldment II pushing device comprises a weldment II pushing platform, a weldment II storage rack, a weldment II pushing cylinder and a weldment II pushing plate; the specification of the pushing platform of the weldment II is matched with that of the pushing plate of the weldment II; the weldment II storage rack comprises a weldment II storage tank, a weldment II storage tank seat and a rack reinforcing rib; the welding part II storage tank is a cuboid storage tank, end plates are not arranged at two ends, one surface is provided with a notch, and the section of the storage tank is larger than the bracket hangers of the welding part II; the storage tank bracket is a double-weldment II storage tank bracket and is provided with double-rectangular storage tank bracket holes, and the storage tank bracket holes are larger than the weldment II bracket lugs; the groove frame reinforcing ribs are triangular reinforcing ribs; the weldment II pushing cylinder is a TCM 40X 125S type cylinder and is provided with three piston rods; the weldment II pushing plate is provided with a double-pushing-plate weldment II opening, and the width of the opening is larger than the length of a hanger of a bracket of the weldment II; (3) the unloading cylinder is an SDA25X50 type cylinder and is provided with a single piston rod; (4) the foot switch comprises a push piece foot switch and a reset foot switch.

The connection relation of the main parts is as follows: (1) assembling and welding a double-welding combined platform: the gun moving platform is welded at the left front part of the table type large platform, the tool platform is positioned at the right side of the gun moving platform and welded on the table type large platform, and the tool platform and the gun moving platform are parallelly and alternately positioned to form a welding part I positioning part to form a double-welding combined platform; (2) assembling a pushing device of the weldment II: the storage tanks (with the notches facing left) of the double weldments II are respectively and vertically welded at two ends of the storage tank bracket, the three tank frame reinforcing ribs are respectively welded at the intersection angles of the storage tanks of the double weldments II and the storage tank bracket to form a storage frame of the weldments II, and the storage frame of the weldments II is welded at the left side of the tool platform; a push platform of the weldment II is arranged on the tool platform close to a storage rack of the weldment II, a push plate of the weldment II is placed on the push platform of the weldment II, a push cylinder of the weldment II is assembled on the tool platform, three piston rods of the push cylinder are connected with the push plate of the weldment II, and the push plate of the weldment II can be pushed into a storage groove bracket (a suspension lug of a bracket of the double weldments II is in equal-height contact with an angle steel bracket of the weldment I); (3) and (3) installing an unloading cylinder: a piston rod of the unloading cylinder is aligned with the positioning position of the welding piece I (namely aligned with an angle iron bracket of the welding piece I), and is arranged on the large table-type platform, namely the unloading cylinder is arranged on a straight line at the positioning position of the welding piece I, so that the piston rod of the unloading cylinder can be ensured to push out the welding piece; (4) installation of a foot switch: the push pedal switch and the reset pedal switch are arranged on the ground beside the large desk-type platform; each switch is connected with the PLC program control system.

Description of the double-gun automatic welding tool: (1) the double-gun automatic welding tool is matched with an argon arc double-gun moving mechanism for use, the argon arc double-gun moving mechanism is arranged on the table type large platform 1, and a double argon arc welding gun is adjusted to be aligned to the positioning position of a welding piece I; (2) preparing before welding: placing a plurality of bracket hangers of a weldment II in a storage tank of the weldment II, and placing one side of an angle steel bracket of the weldment I into a positioning position of the weldment I; (3) pushing a weldment II: when the angle iron bracket of the weldment I is placed in place, a push pedal switch is stepped down, a push cylinder of the weldment II is started, lugs of brackets of the double weldments II are pushed to be in equal-height contact with the angle iron bracket of the weldment I, and the lugs of the brackets of the weldment II are positioned in a notch of a push plate weldment II to prevent deviation in the pushing process; (4) automatic double welding: starting the double-gun moving mechanism, automatically welding two sections of welding seams of the interphase double-welding piece at the same time, and automatically stopping after welding; (5) automatic unloading: after the welding machine is stopped, the piston rod of the unloading cylinder pushes the welded pulling plate rail frame out of the positioning position of the weldment I.

The invention also provides a double-gun type automatic argon arc welding machine, which uses the double-gun automatic welding tool for the filter press weldment; the automatic argon arc welding machine mainly comprises a welding power supply (argon arc welding machine), an arc striking and stabilizing device, a double-gun moving mechanism, a double-gun welding tool, a wire feeding device, an air supply system, a water cooling system, a PLC program control system and the like; the welding machine has the function of one machine for double welding, namely, the function of automatically welding two sections of linear welding seams of the interphase double welding pieces by one electric welding device.

The double-gun automatic welding tool for the filter press weldment and the double-gun type automatic argon arc welding machine have the remarkable advantages of compact structure, one machine for double welding, automatic assembly and disassembly of the weldment and Programmable Logic Controller (PLC); the automatic welding fixture has the advantages that the automation level of equipment is improved by improving the double-gun semi-automatic welding fixture for the filter press weldment into the double-gun full-automatic welding fixture; the innovative double-gun automatic welding tool is matched with the argon arc double-gun moving mechanism for use, so that the double argon arc welding guns can simultaneously and automatically weld two sections of linear welding seams of the alternate double stainless steel welding pieces of the pull plate rail frame, and the production efficiency is improved; the product is modified and upgraded, and the efficiency can be increased.

Drawings

FIG. 1 is a schematic front view of a double-gun automatic welding tool for filter press weldments according to the present invention.

FIG. 2 is a schematic top view of the double-gun automatic welding tool for filter press weldments according to the present invention.

FIG. 3 is a schematic view of a weldment II pushing platform of the double-gun automatic welding tool for filter press weldments according to the present invention.

FIG. 4 is a schematic view of a weldment II storage rack of the double-gun automatic welding tool for filter press weldments according to the present invention.

FIG. 5 is a schematic view of a weld II storage tank of the double-gun automatic welding tool for filter press welds according to the present invention.

FIG. 6 is a schematic view of a bracket of a weldment II storage tank of the double-gun automatic welding tool for filter press weldments according to the present invention.

FIG. 7 is a schematic view of a push plate of a weldment II of the dual-gun automatic welding tool for filter press weldments according to the present invention.

FIG. 8 is a schematic diagram showing the relative positions of the double-gun automatic welding tool for the filter press weldment and the double weldments according to the present invention.

Fig. 9 is a schematic view of filter press weldments (angle steel of the weldment i and hangers of the weldment ii) of the double-gun automatic welding tool for the filter press weldments of the invention.

FIG. 10 is a schematic view of the assembly of the double-gun automatic welding tool for the filter press weldment and the corresponding double-gun moving mechanism.

FIG. 11 is a schematic top view of the assembly of the double-gun automatic welding tool for filter press weldments and the corresponding double-gun moving mechanism according to the present invention.

Reference numerals: 1-a large table-type platform, 2-a double-gun moving mechanism, 3-a weldment II pushing platform, 5-a workpiece unloading cylinder, 6-a weldment II storage rack, 7-a weldment II pushing cylinder, 8-a weldment II pushing plate, 9-a PLC program control system, 10-an argon arc welding gun, 11-a double-gun mechanism seat, 18-a tooling platform, 19-a gun walking platform, 20-a weldment I positioning part, 21-a weldment II storage tank, 22-a weldment II storage tank bracket (short for a storage tank bracket), 23-a tank bracket reinforcing rib, 24-a pushing plate weldment II notch, 25-a weldment I angle steel bracket, 26-a weldment II bracket hanging lug, 27-a rail frame welding line, 28-a storage tank bracket hole (a weldment II falling hole), 29-a pushing foot switch and 30-a reset foot switch.

Detailed Description

The technical solution of the embodiment of the present invention is described below with reference to the accompanying drawings in the embodiment of the double-gun automatic welding tool for filter press weldment and the double-gun automatic argon arc welding machine, and the described embodiment is only a part of the preferred embodiments of the present invention, but not all embodiments. All other embodiments, such as a double-gun automatic welding tool with the same automatic loading and unloading manner and a similar structure, which are not inventive by those skilled in the art based on the embodiments of the present invention, belong to the protection scope of the present invention.

Example 1

The utility model provides a pressure filter weldment is with two rifle automatic weld frock (be called for short: two rifle automatic weld frock), two sections sharp welding seams's of automatic handling pressure filter weldment and two rifle automatic weld frock promptly, the main points of the overall embodiment of innovation are: the existing double-gun semi-automatic welding tool for the filter press weldment is improved into a double-gun automatic welding tool, and the double-gun semi-automatic welding tool comprises a double-welding combined platform, a weldment I positioning part 20 of the double-welding combined platform, a weldment II pushing device, an unloading cylinder 5 and a double switch; the weldment II pushing device can automatically push the hanger 26 of the weldment II bracket to a proper position, and manual pre-spot welding of the angle steel bracket 25 of the weldment I and the hanger 26 of the weldment II bracket is saved; meanwhile, the double-gun automatic welding tool is matched with the argon arc double-gun moving mechanism for use, so that the double argon arc welding gun 10 can automatically weld two sections of linear welding seams of the alternate double stainless steel welding pieces of the pull plate rail frame at the same time; specific embodiments are described in detail below.

The double-welding combined platform comprises a table type large platform 1, a tool platform 18 and a gun moving platform 19; the table type large platform 1 is provided with four branches , wherein the height of the branch is 1 meter; the specification of the tool platform 18 corresponds to that of a double-gun automatic welding tool, the specification of the gun walking platform 19 corresponds to that of the double-gun moving mechanism 2, the height of the tool platform 18 and the gun walking platform 19 is smaller than the single-side width of an angle iron bracket 25 of a weldment I, and a gap 20 at the positioning position of the weldment I is arranged between the double platforms. The gun moving platform 19 is welded at the left front part of the large table platform 1, the tooling platform 18 is positioned at the right side of the gun moving platform 19 and welded on the large table platform 1, and the tooling platform 18 and the gun moving platform 19 are parallelly and alternately arranged to form a weldment I positioning part 20 to form a double-welding combined platform; used for installing the double-gun automatic welding tool and the double-gun moving mechanism 2.

The weldment II pushing device comprises a weldment II pushing platform 3, a weldment II storage rack 6, a weldment II pushing cylinder 7 and a weldment II pushing plate 8; the specification of the pushing platform 3 of the weldment II is adaptive to that of a pushing plate 8 of the weldment II; the weldment II storage rack 6 comprises a weldment II storage tank 21, a storage tank bracket 22 and a rack reinforcing rib 23; the weldment II storage groove 21 is a cuboid storage groove, end plates are not arranged at two ends, a notch is formed in one surface, and the section of the storage groove is larger than the weldment II support hanging lug 26; the storage tank bracket 22 is a double-weldment II storage tank bracket and is provided with double-rectangular storage tank bracket holes 28, and the storage tank bracket holes 28 are larger than the weldment II bracket hanging lugs 26; the tank frame reinforcing ribs 23 are triangular reinforcing ribs; the weldment II pushing cylinder 7 is a TCM 40X 125S type cylinder and is provided with three piston rods; and the weldment II pushing plate 8 is provided with a double-pushing-plate weldment II opening 24, and the width of the opening is greater than the length of a weldment II support hanging lug 26. The double-weldment II storage groove 21 (with the notch facing left) is respectively and vertically welded at two ends of the storage groove support 22, the three groove frame reinforcing ribs 23 are respectively welded at the intersection of the double-weldment II storage groove 21 and the storage groove support 22 to form a weldment II storage frame 6, and the weldment II storage frame 6 is welded at the left side of the tooling platform 18; the weldment II pushing platform 3 is arranged on the tool platform 18 next to the weldment II storage frame 6, the weldment II pushing plate 8 is placed on the weldment II pushing platform 3, the weldment II pushing cylinder 7 is assembled on the tool platform 18, three piston rods of the weldment II pushing cylinder are connected with the weldment II pushing plate 8, and the weldment II pushing plate 8 can be pushed into the storage groove support 22; the welding device is used for pushing the hanging lugs 26 of the bracket of the double weldment II to the welding position, so that the hanging lugs 26 of the bracket of the double weldment II are in equal-height contact with the angle iron bracket 25 of the weldment I.

The unloading cylinder 5 is an SDA25X50 type cylinder and is provided with a single piston rod; a piston rod of the unloading cylinder 5 is aligned with the positioning position 20 of the welding piece I (namely aligned with an angle steel bracket 25 of the welding piece I), and is arranged on the large table type platform 1, namely the unloading cylinder 5 is arranged on a straight line of the positioning position 20 of the welding piece I, so that the piston rod of the unloading cylinder 5 can be ensured to push out the welding piece; after the welding machine is stopped, the piston rod of the air cylinder pushes the welded pulling plate track frame out of the positioning part 20 of the weldment I.

The foot switch comprises a push piece foot switch 29 and a reset foot switch 30; the push pedal switch 29 and the reset pedal switch 30 are arranged on the ground beside the large desk platform 1; each switch is connected with the PLC program control system 9; the push pedal switch 29 is used for starting the push cylinder 7 of the weldment II, and the reset pedal switch 30 is used for resetting the push device of the weldment II.

The double-gun automatic welding tool for the filter press weldment has the advantages of compact structure, one-machine double welding, automatic assembly and disassembly of the weldment and Programmable Logic Controller (PLC); the double-gun automatic welding tool is matched with the argon arc double-gun moving mechanism 2 for use, and the technical problems that the existing double-gun semi-automatic welding tool cannot automatically assemble and disassemble a weldment, cannot perform full-automatic welding and is not suitable for stainless steel weldments are solved; the automation level and the production efficiency of the product are improved; the product is modified and upgraded, and the efficiency can be increased.

Example 2

The invention relates to a double-gun type automatic argon arc welding machine (called as a double-gun argon arc welding machine for short), which is a double-gun automatic welding tool for a filter press weldment (called as a double-gun automatic welding tool for short) provided by the invention; the automatic argon arc welding machine mainly comprises a welding power supply (argon arc welding machine), an arc striking and stabilizing device, a double-gun moving mechanism 2, a double-gun welding tool, a wire feeding device, an air supply system, a water cooling system, a PLC program control system 9 and the like; the welding machine has the function of one machine for double welding, namely, the function of automatically welding two sections of linear welding seams of the interphase double welding pieces by one electric welding device. The invention is a common technical part with the prior art and is manufactured according to the current standard of the automatic argon arc welding machine in China.

The double-gun moving mechanism 9 comprises a servo motor, a threaded driving shaft, a double-gun moving nut, a threaded shaft end seat, a nut sliding rail, a T-shaped fixing plate, a double-gun mechanism seat 11 and an argon arc welding gun 10; the double-gun moving mechanism 9 is matched with a double-gun automatic welding tool for use, the double-gun moving mechanism 9 is installed on the table type large platform 1, and the double argon arc welding gun 10 is adjusted to be aligned to the positioning part 20 of the weldment I; for simultaneously and automatically welding two sections of linear welding seams (rail frame welding seams 27) of the interphase double weldment.

The double-gun welding tool comprises a double-welding combined platform, a weldment II pushing device, an unloading cylinder 5 and a foot switch; the double-welding combined platform comprises a table type large platform 1, a tooling platform 18, a gun moving platform 19 and a weldment I positioning part 20; the weldment II pushing device comprises a weldment II pushing platform 3, a weldment II storage rack 6, a weldment II pushing cylinder 7 and a weldment II pushing plate 8; the foot switch comprises a push piece foot switch 29 and a reset foot switch 30; for pushing the dual weldment ii bracket lugs 26 into the welding position.

General assembly debugging of the double-gun argon arc welding machine: (1) assembling and welding a double-welding combined platform: the gun moving platform 19 is welded at the front left of the large table platform 1, the tooling platform 18 is positioned at the right of the gun moving platform 19 and welded on the large table platform 1, and the tooling platform 18 and the gun moving platform 19 are positioned at the positions 20 of the weldments I at intervals in parallel to form a double-welding combined platform; (2) installation of the double gun moving mechanism 2: an argon arc double-gun moving mechanism 20 is arranged on a gun moving platform 19, and the double argon arc welding gun 10 is adjusted to be aligned to a positioning part 20 of a weldment I; (3) installation of the double-gun automatic welding tool: the double-gun automatic welding tool is arranged at a position, corresponding to the double-gun moving mechanism 2, of the double-welding combined platform, the push plate 8 of the weldment II can be pushed into the storage tank bracket 22 by the pushing cylinder 7 of the weldment II, and the piston rod of the unloading cylinder 5 is aligned to the positioning position 20 of the weldment I, which is detailed in embodiment 1; (4) installation of other parts: the welding power supply, the arc striking and stabilizing device, the wire feeding device, the gas supply system, the water cooling system and the PLC program control system are respectively arranged on corresponding positions near the double-welding combined platform according to the conventional method and are communicated with the double argon arc welding guns in parallel.

The automatic welding process of the double-gun argon arc welding machine comprises the following steps: (1) preparing before welding: placing a plurality of bracket hangers 26 of the weldment II in a storage tank 21 of the weldment II, placing one side of an angle bracket 25 of the weldment I in a positioning part 20 of the weldment I and contacting the photoelectric monitoring switch 4; (2) pushing a weldment II: when the angle iron bracket 25 of the weldment I is placed in place, the push pedal switch 29 is stepped down, the push cylinder 7 of the weldment II is started, the bracket lugs 26 of the double weldments II are pushed to be in equal-height contact with the angle iron bracket 25 of the weldment I, and the bracket lugs 26 of the weldment II are positioned in the notch 24 of the push plate weldment II in the pushing process to prevent deviation; (3) automatic double welding: starting the double-gun moving mechanism 2, automatically welding two sections of welding seams (rail frame welding seams 27) of the interphase double-welding piece at the same time, and automatically stopping after welding; (4) automatic unloading: after the welding machine is stopped, a piston rod of the unloading cylinder 5 pushes the welded pulling plate track frame out of the positioning part 20 of the weldment I.

The double-gun type automatic argon arc welding machine has the advantages that the double-gun semi-automatic welding tool for the filter press weldment is improved into the double-gun full-automatic welding tool, so that the automation level of equipment is improved; the innovative double-gun automatic welding tool is matched with the argon arc double-gun moving mechanism 2 for use, so that the double argon arc welding gun 10 can automatically weld two sections of linear welding seams of the alternate double stainless steel welding pieces of the pull plate rail frame at the same time, and the production efficiency is improved; the method can also be used for welding similar double straight seam weldments; the product is modified and upgraded, and the efficiency can be increased.