CN115255557B

CN115255557B - Automatic multifunctional arc welding equipment

Info

Publication number: CN115255557B
Application number: CN202211161423.2A
Authority: CN
Inventors: 吴金龙; 吴进; 火宇
Original assignee: Yangzhou Longchuang Metal Technology Co ltd
Current assignee: Yangzhou Longchuang Metal Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-12-23
Anticipated expiration: 2042-09-23
Also published as: CN115255557A

Abstract

The invention relates to the field of arc welding equipment, in particular to automatic multifunctional arc welding equipment. The clamping device is used for clamping the welding rod so as to remove the clamping of the welding rod when the length of the welding rod reaches a preset value. The welding rod in the limiting ring reaches the clamping device after passing through the first notch. When the conversion groove is communicated with the first notch, the supply spring is released to push out the first notch of the standby welding rod. The rotation stop plate is used for limiting the rotation of the conversion disk when contacting with the peripheral wall of the conversion disk. The trigger device comprises a transmission assembly and an unlocking assembly; the transmission assembly is used for driving the fixed shaft to rotate when the welding rods clamped on the clamping device work; the unfreezing assembly is used for driving the rotation stopping plate and the conversion disc to be separated from contact after welding rods on the clamping device are released. When the supply spring is released, the standby welding rods are pushed to the clamping rods of the two clamping plates, so that the effect of automatically supplying the welding rods is realized, the welding efficiency is improved, and the welding cost is reduced.

Description

Automatic multifunctional arc welding equipment

Technical Field

The invention relates to the field of arc welding equipment, in particular to automatic multifunctional arc welding equipment.

Background

Metal cutting and welding equipment such as automatic semi-automatic electric arcs, plasma arc welding machines and the like are manufactured and are mostly used in welding processes. The electric welding is a common connection mode used between two metal materials in the prior art, the welding operation is usually realized by an electric welding machine in the prior art, in the working process, the welding rod and the metal materials are electrically connected by carrying out positive and negative pole lapping, the welding flux on the welding rod and the metal materials to be welded are melted by means of high-temperature electric arcs generated by the positive and negative poles during instantaneous short circuit, the connection operation between the metal materials to be contacted is realized, and the electric welding machine is often used in the fields of current mechanical processing and metal plate maintenance.

The electric welding among the prior art is at the during operation, and it is usually with the fixed centre gripping of welding rod on electric welding gun, afterwards, holds electric welding gun through the staff and carries out manual welding operation, and in lasting welding process, because the welding rod shortens gradually for the staff need last the interval between adjustment electric welding gun and the welding position, then leads to the welding rod skew slightly carelessly easily, leads to welding operation's technical requirement too high, and then makes efficient welding inefficiency.

Disclosure of Invention

The invention provides automatic multifunctional arc welding equipment, which aims to solve the problem of low efficiency of the existing welding equipment.

The invention relates to an automatic multifunctional arc welding device, which adopts the following technical scheme:

an automatic multi-function arc welding device comprising: the device comprises a bracket, a clamping device, a conversion device, a rotating device and a triggering device; the clamping device is used for clamping the welding rod so as to release the clamping of the welding rod when the length of the welding rod reaches a preset value; the conversion device comprises a conversion disc and a limiting ring; the limiting ring is horizontally arranged on the bracket, and is provided with a first notch communicated with the clamping device, so that the welding rod in the limiting ring reaches the clamping device after passing through the first notch; the conversion disc and the limiting ring are coaxially arranged and can be rotatably arranged in the limiting ring; a plurality of spare grooves are uniformly distributed on the conversion disc in the circumferential direction, and each spare groove extends along the radial direction of the conversion disc; a standby welding rod and a supply spring are placed in each standby groove, the initial state of each supply spring is a force accumulation state, and when the conversion groove is communicated with the first notch, the supply spring releases to push out the standby welding rod towards the direction of the first notch; the rotating device comprises a fixed shaft, a coil spring and a rotation stopping plate; the rotation stopping plate is slidably arranged on the bracket and is used for limiting the rotation of the conversion disk when contacting with the peripheral wall of the conversion disk; the fixed shaft is coaxial with the conversion disk and is rotatably arranged on the bracket; the inner end of the coil spring is fixedly connected with the fixed shaft, and the outer end of the coil spring is fixedly connected with the conversion disc; the trigger device comprises a transmission assembly and an unlocking assembly; the transmission assembly is used for driving the fixed shaft to rotate when the welding rods clamped on the clamping device work; the unfreezing assembly is used for driving the rotation stopping plate and the conversion disc to be separated from contact after welding rods on the clamping device are released.

Further, the clamping device comprises two clamping plates, two return springs, a plurality of clamping springs, a separating assembly and two driving gears; the clamping plate is vertically and slidably arranged on the bracket up and down, and one side surface of the clamping plate is a tooth surface; the two clamping plates are symmetrically arranged and can slide relatively, and the initial distance between the two clamping plates is a preset distance so that the distance between the two clamping plates is increased after the welding rod is clamped; the upper end of each reset spring is fixedly connected with the upper end of the clamping plate, and the lower end of each reset spring is fixedly connected with the bracket; a plurality of clamping springs are uniformly distributed between the two clamping plates in the vertical direction, and two ends of each clamping spring are fixedly connected with the two clamping plates respectively; the two driving gears are arranged on the bracket in a synchronous rotating manner, so that each clamping gear is meshed with one clamping plate when the two clamping plates clamp welding rods; the separating assembly is used for enabling the two clamping plates to move relatively when the clamping plates slide downwards to a preset distance.

Further, the unfreezing assembly comprises a first unfreezing rod, a second unfreezing rod and an unfreezing gear; the second unlocking rod is a rack and is fixedly connected with the rotation stopping plate; the unlocking gear is meshed with the second unlocking rod and is rotatably arranged on the bracket; the first releasing rod is a rack and is horizontally arranged in a sliding manner, and the first releasing rod is meshed with the releasing gear, so that when the distance between the two clamping plates is gradually increased, the second releasing rod drives the stop plate to be contacted with the conversion plate; the first unfreezing rod and the clamping plate can be connected in a relatively up-down sliding mode, and therefore when the two clamping plates are far away from each other, the first unfreezing rod is driven to slide synchronously.

Further, the separating assembly comprises two pushing blocks and a pushing rod; the clamping plate is provided with a separation groove, the separation groove is positioned at one side of the clamping spring, and the upper wall of the separation groove is provided with a clamping block; the push block is slidably inserted into the separation groove, and the upper side surface of the push block is in contact with the separation groove, so that the clamping block is inserted into the separation groove when the upper side surface of the push block and the upper wall of the separation groove are hijacked; the upper part and the lower part of one end of the push block, which can extend out of the separation groove, are inclined planes; a compression spring is arranged between the push block and the separation groove; the push rod level sets firmly on the support, and the upper and lower terminal surface at the both ends of push rod is the inclined plane to when the grip block slided downwards to predetermineeing the distance, the last inclined plane at push rod both ends and the lower inclined plane contact of ejector pad.

Further, the transmission assembly comprises a fluted disc, a first bevel gear, a second bevel gear, a gear shaft and a transmission shaft; the bracket is fixedly provided with a fixed plate which is vertically arranged and is positioned between the fixed shaft and the clamping plate; the corresponding surfaces of the two clamping plates are rack surfaces; the fluted disc and the fixed plate are arranged in parallel, and the fluted disc is rotatably arranged on one side of the fixed plate close to the clamping plate; the gear shaft is rotatably arranged on the fixed plate and meshed with the fluted disc; one end of the gear shaft is meshed with a clamping plate; the transmission shaft is rotatably inserted on the fixed plate, and one end of the transmission shaft is fixedly connected with the fluted disc; the first bevel gear and the fluted disc are coaxial and fixedly connected with the other end of the transmission shaft; the second bevel gear is fixedly sleeved on the fixed shaft and meshed with the first bevel gear.

Further, the support comprises a support frame; the supporting frame is rectangular and annular; the supporting frame is horizontally arranged, and a second notch is formed in the supporting frame; the limiting ring is fixedly connected with the supporting frame, and the first notch is communicated with the second notch; the clamping plate can slide up and down and is arranged in the supporting frame in a horizontal sliding manner; the unfreezing component is arranged on the supporting frame; the driving gear is rotatably provided on the support frame.

Furthermore, two driving boxes are arranged in the supporting frame; the driving box is provided with a driving rod which can be inserted on the driving box in a sliding way in the horizontal direction, and the extension length of the driving rod in an initial state is a limit value; each driving gear is rotatably arranged on one driving rod so as to be meshed with the clamping plate when the driving rod is in an initial state; the driving box is internally provided with a motor which is used for driving the driving gear to rotate.

Furthermore, the bracket also comprises an operation table and a lifting frame; the operating platform is horizontally arranged; the lifting frame is slidably arranged on the operating platform; the supporting frame is fixedly connected with the upper end of the lifting frame.

Further, the rotating device also comprises a winding groove; the winding groove is barrel-shaped and is fixedly arranged at the axis of the conversion disc; the coil spring is arranged in the coil groove, and the outer end of the coil spring is fixedly connected with the inner wall of the coil groove.

The beneficial effects of the invention are: the automatic multifunctional arc welding equipment comprises a bracket, a clamping device, a conversion device, a rotating device and a triggering device, wherein when the clamping device clamps and welds welding rods, the clamping device drives a coil spring to store force through a transmission assembly and a fixed shaft due to the fact that the rotation of a conversion disk is limited by a rotation stop plate. The clamping device is used for releasing the clamping of the welding rod after the welding rod is used. When the centre gripping subassembly was relieved the centre gripping to the used up welding rod, through the setting of unfreezing subassembly, drive and end the commentaries on classics board and conversion dish break away from the contact, and then make the spring coiling release drive the conversion dish and rotate 90 for reserve tank and first breach and second breach intercommunication, during the release of supply spring, push away reserve welding rod to the supporting rod of two grip blocks on, and then realize the effect of automatic supply welding rod, in order to improve welding efficiency, reduce welding cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of an automatic multi-function arc welding apparatus of the present invention;

FIG. 2 is a schematic view of a partial configuration of an embodiment of an automatic multi-function arc welding apparatus of the present invention;

FIG. 3 is a schematic structural diagram of a clamping device of an embodiment of an automatic multifunctional arc welding device of the present invention;

FIG. 4 is a schematic view of a clamping plate structure of an embodiment of an automatic multifunctional arc welding device of the present invention;

FIG. 5 is a schematic view of a support frame structure of an embodiment of an automatic multifunctional arc welding apparatus of the present invention;

FIG. 6 is a cross-sectional view of a support frame of an embodiment of an automatic multi-function arc welding apparatus of the present invention;

FIG. 7 is a schematic view of a drive assembly of an embodiment of an automatic multi-function arc welding apparatus of the present invention;

FIG. 8 is a schematic structural diagram of a conversion device of an embodiment of an automatic multifunctional arc welding apparatus of the present invention;

FIG. 9 is a top view of an embodiment of an automatic multi-function arc welding apparatus of the present invention;

FIG. 10 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 9;

fig. 11 is a partial enlarged view of fig. 10 at B.

In the figure: 100. an operation table; 200. a lifting frame; 210. a clamping device; 220. a conversion device; 211. a clamping plate; 2111. a return spring; 2112. a vertical chute; 2113. a clamping rod; 212. a support frame; 2121. a push rod; 2122. a drive box; 2123. a drive gear; 2124. a rotation stopping plate; 2125. coiling a groove; 2126. a limiting ring; 2127. a fixed shaft; 2128. a first notch; 2129. a second notch; 213. welding rods; 214. a push block; 215. the gear is unlocked; 216. a first jam release lever; 217. a second jam release lever; 218. a separation tank; 221. a rotating ring; 222. a second bevel gear; 223. a first bevel gear; 224. a fluted disc; 225. a gear shaft; 226. a coil spring; 227. a spring is supplied; 228. a standby groove; 229. a drive shaft; 230. a sliding groove; 240. the spring is clamped.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

An embodiment of an automatic multifunctional arc welding device of the present invention, as shown in fig. 1 to 11, comprises a support, a clamping device 210, a conversion device 220, a rotation device and a trigger device. The stand includes an operation table 100, a crane 200, and a support frame 212. The operation table 100 is horizontally disposed, and the crane 200 is slidably disposed on the operation table 100. The supporting frame 212 is rectangular and annular, the supporting frame 212 is horizontally arranged, the supporting frame 212 is provided with a second notch 2129, and the supporting frame 212 is fixedly connected with the upper end of the lifting frame 200.

The clamping device 210 is used for clamping the welding rod 213, so as to release the clamping of the welding rod 213 when the length of the welding rod 213 reaches a preset value. Specifically, the clamping device 210 includes two clamping plates 211, two return springs 2111, a plurality of clamping springs 240, a disengagement assembly, and two drive gears 2123. The clamping plate 211 is vertically and slidably arranged on the bracket up and down, and one side surface of the clamping plate 211 is a tooth surface; the two clamping plates 211 are symmetrically arranged and can slide relatively, the initial distance between the two clamping plates 211 is a preset distance, and the distance between the two clamping plates 211 in the initial state is the shortest, so that the distance between the two clamping plates 211 after the welding rod 213 is clamped is increased. The clamping bar 2113 is arranged at the lower end of the clamping plate 211, the two clamping bars 2113 clamp the welding rod 213, and the side wall of the clamping bar 2113 clamping the welding rod 213 is an arc surface to increase the stability of clamping the welding rod 213. The holding plate 211 is provided in the support frame 212 so as to be vertically slidable and horizontally slidable. The upper end of each return spring 2111 is fixedly connected with the upper end of the clamping plate 211, the lower end of each return spring is fixedly connected with the bracket, and the upper end of the clamping plate 211 extends along the horizontal direction. The clamping springs 240 are uniformly distributed between the two clamping plates 211 in the vertical direction, and two ends of each clamping spring 240 are fixedly connected with the two clamping plates 211 respectively so as to drive the clamping springs 240 to stretch after the two clamping plates 211 clamp the welding bars 213. Two driving gears 2123 are provided on the carriage to be rotated in synchronization with each other to engage each of the holding gears with one of the holding plates 211 when the two holding plates 211 hold the welding wire 213. The separating assembly is used for relatively moving the two clamping plates 211 when the clamping plates 211 slide downwards to a preset distance. The driving gear 2123 is rotatably provided on the support frame 212.

The switching device 220 includes a switching disk 221 and a limiting ring 2126, the limiting ring 2126 is horizontally disposed on the bracket, the limiting ring 2126 has a first notch 2128 communicating with the clamping device 210, so that the welding rod 213 in the limiting ring 2126 reaches the clamping device 210 after passing through the first notch 2128, the limiting ring 2126 is fixedly connected to the supporting frame 212, and the first notch 2128 is communicated with the second notch 2129. The switching disk 221 is coaxially disposed with the limiting ring 2126 and rotatably disposed in the limiting ring 2126, the peripheral wall of the switching disk 221 is provided with a circular groove, the limiting ring 2126 is sleeved on the switching disk 221 and in the circular groove, and the circular groove allows the switching disk 221 to be clamped on the limiting ring 2126. A plurality of spare grooves 228 are uniformly distributed on the conversion disk 221 in the circumferential direction, the number of the spare grooves 228 is four, and each spare groove 228 extends along the radial direction of the conversion disk 221; each reserve groove 228 accommodates a reserve welding rod 213 and a supply spring 227, and the supply spring 227 is initially in a power-storage state, so that when the switching groove communicates with the first notch 2128, the supply spring 227 releases to push the reserve welding rod 213 out toward the first notch 2128. Specifically, a backup clamp plate is disposed in the backup groove 228, the backup clamp plate is slidably disposed in the backup groove 228, the backup clamp plate clamps one of the backup welding rods 213, and one end of the supply spring 227 is fixedly connected to an inner end of the backup groove 228, and the other end is fixedly connected to the backup clamp plate. The supply spring 227, when energized, causes the clamp plate and stop ring 2126 to clamp the welding wire 213.

The rotation device includes a fixed shaft 2127, a coil spring 226, and a rotation stopping plate 2124. A rotation stop plate 2124 is slidably disposed on the bracket, and the rotation stop plate 2124 is configured to limit the rotation of the conversion disk 221 when contacting the peripheral wall of the conversion disk 221. The fixing shaft 2127 is coaxial with the switching disk 221 and is rotatably disposed on the bracket, the inner end of the coil spring 226 is fixedly connected to the fixing shaft 2127, the outer end is fixedly connected to the switching disk 221, when the switching disk 221 is restricted by the rotation-stopping plate 2124 to rotate, the fixing shaft 2127 rotates to drive the coil spring 226 to accumulate force, and when the coil spring 226 is released, the switching disk 221 rotates. The trigger device comprises a transmission component and an unfreezing component, when the welding rod 213 is clamped by the clamping device 210, the transmission component is used for driving the fixed shaft 2127 to rotate, so that the coil spring 226 is accumulated; the releasing assembly is used to bring the rotation stop plate 2124 and the switching disk 221 out of contact after the welding rod 213 on the clamping device 210 is released, so that the coil spring 226 is released to rotate the switching disk 221 by 90 °, and the spare groove 228 is communicated with the first notch 2128 and the second notch 2129, and the spare welding rod 213 is pushed onto the clamping rods 2113 of the two clamping plates 211 when the supply spring 227 is released.

In the present embodiment, as shown in fig. 5 to 8, the unlocking assembly includes a first unlocking lever 216, a second unlocking lever 217, and an unlocking gear 215. The rotation stopping plate 2124 is spaced from the converting disc 221 in the initial state, the rotation stopping plate 2124 is arc-shaped, a limiting block is disposed on one side of the converting disc 221, a plurality of limiting grooves are disposed on the circumferential wall of the converting disc 221, and when the clamping plate 211 is in the initial state, the limiting block on the rotation stopping plate 2124 is not in contact with the limiting grooves, so that when the clamping plate 211 clamps the welding rod 213, the limiting block of the clamping plate 211 is inserted into the limiting grooves. The second jam release rod 217 is a rack and is fixedly connected to the rotation stop plate 2124. The releasing gear 215 is engaged with a second releasing lever 217 and rotatably provided on the bracket. The first releasing lever 216 is a rack and horizontally slidably disposed, and the first releasing lever 216 is engaged with the releasing gear 215, so that the second releasing lever 217 brings the rotation preventing plate 2124 into contact with the converting plate 221 when the distance between the two holding plates 211 gradually increases. The unfreezing component is arranged on the supporting frame 212; the peripheral wall of the supporting frame 212 is provided with a sliding groove 230, and the first unlocking rod 216, the second unlocking rod 217 and the unlocking gear 215 are all arranged in the sliding groove 230. The first releasing rod 216 and one of the clamping plates 211 are connected in a relatively up-down sliding manner so as to drive the first releasing rod 216 to synchronously slide when the two clamping plates 211 are far away from each other, a vertical sliding groove 2112 is formed in one of the clamping plates 211, and the first releasing rod 216 is inserted into the vertical sliding groove 2112 so that the clamping plate 211 moves up and down relative to the first releasing rod 216.

In this embodiment, as shown in fig. 9 to 11, the separating assembly includes two push blocks 214 and a push rod 2121. The holding plate 211 is provided with a separation groove 218, the separation groove 218 is located at one side of the holding spring 240, and the upper wall is provided with a fixture block. The push block 214 is slidably inserted into the separation groove 218, and an upper side surface of the push block 214 contacts the separation groove 218, so that when the upper side surface of the push block 214 is hijacked with an upper wall of the separation groove 218, the latch is inserted into the separation groove 218, and the push block 214 drives the holding plate 211 to move in the horizontal direction. The end of the push block 214 that extends beyond the separation channel 218 is beveled, specifically, triangular in cross-section. A compression spring is arranged between the pushing block 214 and the separation groove 218, so that the compression spring contracts when the pushing block 214 contracts in the separation groove 218, and the pushing block 214 extends out of the clamping plate 211 in an initial state so as to contract when the pushing block 214 slides in the separation groove 218. The push rod 2121 is horizontally fixed on the bracket, specifically, the push rod 2121 is fixed on the support frame 212, the upper and lower end surfaces of both ends of the push rod 2121 are inclined surfaces, the cross sections of both ends of the push rod 2121 are triangular, so that when the clamping plate 211 slides downwards to a preset distance, the upper inclined surfaces of both ends of the push rod 2121 contact with the lower inclined surface of the push block 214, and then the two push blocks 214 are pushed upwards obliquely under the action of the inclined surfaces, and due to the cooperation of the clamping block and the separation groove 218, the push block 214 cannot retract into the separation groove 218, and further the clamping plate 211 continuously moves downwards to keep away from each other under the action of the inclined surface of the push rod 2121, so that the clamping plate 211 contacts with the welding rod 213 for clamping. When the push block 214 slides to the lower end of the push rod 2121, the upper inclined surface of the push block 214 contacts with the lower inclined surface of the push rod 2121, and the push block 214 is retracted into the separation groove 218 by the urging of the return spring 2111, so that the holding plate 211 is returned.

In this embodiment, as shown in fig. 2 to 8, the transmission assembly includes a toothed plate 224, a first bevel gear 223, a second bevel gear 222, a toothed shaft 225 and a transmission shaft 229. The fixed plate is fixedly arranged on the support, specifically, the fixed plate is fixedly arranged on the support frame 212, the fixed plate is vertically arranged and is positioned between the fixed shaft 2127 and the clamping plates 211, and the corresponding surfaces of the two clamping plates 211 are rack surfaces. The fluted disc 224 and the fixed plate are arranged in parallel, and the fluted disc 224 is rotatably arranged on one side of the fixed plate close to the clamping plate 211; a gear shaft 225 is rotatably disposed on the fixed plate and is engaged with the gear plate 224. One end of the pinion 225 is engaged with a holding plate 211; the transmission shaft 229 can be rotatably inserted on the fixing plate, one end of the transmission shaft is fixedly connected with the fluted disc 224, and the first bevel gear 223 is coaxial with the fluted disc 224 and fixedly connected with the other end of the transmission shaft 229; the second bevel gear 222 is fixed to the fixed shaft 2127 and engaged with the first bevel gear 223. The rotating device further comprises a winding slot 2125; the winding slot 2125 is barrel-shaped and is fixedly arranged at the axis of the conversion disk 221; the coil spring 226 is disposed in the rolling slot 2125, and has an outer end fixedly connected to an inner wall of the rolling slot 2125.

In this embodiment, as shown in fig. 5 to 8, two driving boxes 2122 are disposed in the supporting frame 212; a driving rod is arranged on the driving box 2122, the driving rod can be inserted on the driving box 2122 in a sliding manner in the horizontal direction, and the extension length of the driving rod in an initial state is a limit value; each of the driving gears 2123 is rotatably provided on one driving lever so that the driving gear 2123 is engaged with the chucking plate 211 at the initial state of the driving lever; a motor is arranged in the driving box 2122 and used for driving the driving gear 2123 to rotate.

During operation, when the two clamping plates 211 clamp one welding rod 213 in an initial state, the two clamping plates 211 are away from each other, so that the clamping spring 240 is stretched, and the two driving gears 2123 are respectively engaged with the corresponding clamping plates 211, and meanwhile, when the two clamping plates 211 are away from each other to clamp the welding rod 213, one clamping plate 211 drives the first unlocking rod 216 to synchronously and horizontally slide, so as to drive the limiting block on the rotation stopping plate 2124 to be inserted into the limiting groove of the conversion disk 221 through the unlocking gear 215 and the second unlocking rod 217. The crane 200 slides on the operation table 100, thereby adjusting the welding position thereof. The two motors are synchronously started, and then the two driving gears 2123 are driven to synchronously rotate. The driving gear 2123 rotates and gradually consumes the welding rod 213, so as to drive the two clamping plates 211 to move downwards, and the restoring spring 2111 accumulates force during the descending process of the clamping plates 211.

Since the two holding plates 211 are engaged with one of the holding plates 211 and the pinion 225 when holding the welding rod 213, the pinion 225 is rotated during the downward movement of the holding plates 211. The gear shaft 225 rotates to drive the gear disc 224 to rotate, and further the second bevel gear 222 rotates via the rotating shaft and the first bevel gear 223. The second bevel gear 222 rotates the fixed shaft 2127, and the coil spring 226 is energized. When the welding rod 213 is used, the lower inclined surfaces of the outer ends of the two push blocks 214 are respectively contacted with the upper inclined surfaces of the two ends of the push rod 2121, and the push block 214 is pushed by the push rod 2121 in an inclined manner, so that the upper surface of the push block 214 is contacted with the upper wall of the separation groove 218, and the block is inserted into the separation groove 218. The holding plate 211 continues to move downward under the action of the driving gear 2123, so that the two pushing blocks 214 are pushed away from each other by the inclined surfaces at the two ends of the pushing rod 2121, and the two holding plates 211 are further moved away from each other, so that the welding rod 213 is separated. The pushing block 214 is driven by the clamping plate 211 and located below the pushing rod 2121, so that the inclined surfaces at the two ends below the pushing rod 2121 are in contact with the inclined surface above the pushing block 214.

Due to the disengagement of the welding rod 213, the plurality of clamping springs 240 release the elastic force to contract, and the distance between the two clamping plates 211 returns to the initial state, in which the distance between the two clamping plates 211 is minimized. The two holding plates 211 are disengaged from the corresponding driving gears 2123, and at the same time, the holding plates 211 are disengaged from the gear shaft 225, and the return springs 2111 are released to return the two holding plates 211 to the original springs. The grip plate 211 disengages the rotation preventing plate 2124 and the switching disk 221 via the first and second trip levers 216 and 217 and the trip gear 215. The coil spring 226 is released to rotate the switching disk 221 by 90 °, and when the two holding plates 211 are restored to the predetermined height, the next spare groove 228 is rotated to the first notch 2128 of the stopper ring 2126, the supply spring 227 is released to push the spare welding rod 213 outward, and the spare welding rod 213 is held by the two holding plates 211 through the first notch 2128 and the second notch 2129, so that the two holding plates 211 are separated from each other by a predetermined distance, and the two holding plates 211 and the corresponding driving gears 2123 are engaged again.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An automatic multifunctional arc welding device is characterized in that: the method comprises the following steps:

a support;

the clamping device is used for clamping the welding rod so as to remove the clamping of the welding rod when the length of the welding rod reaches a preset value;

the conversion device comprises a conversion disc and a limiting ring; the limiting ring is horizontally arranged on the bracket and is provided with a first notch communicated with the clamping device, so that the welding rod in the limiting ring reaches the clamping device after passing through the first notch; the conversion disc and the limiting ring are coaxially arranged and can be rotatably arranged in the limiting ring; a plurality of spare grooves are uniformly distributed on the conversion disc in the circumferential direction, and each spare groove extends along the radial direction of the conversion disc; a standby welding rod and a supply spring are placed in each standby groove, the initial state of each supply spring is a power storage state, and when the conversion groove is communicated with the first notch, the supply spring releases to push out the standby welding rod towards the direction of the first notch;

the rotating device comprises a fixed shaft, a coil spring and a rotation stopping plate; the rotation stopping plate is slidably arranged on the bracket and is used for limiting the rotation of the conversion disk when contacting with the peripheral wall of the conversion disk; the fixed shaft is coaxial with the conversion disk and is rotatably arranged on the bracket; the inner end of the coil spring is fixedly connected with the fixed shaft, and the outer end of the coil spring is fixedly connected with the conversion disc;

the trigger device comprises a transmission assembly and a jam release assembly; the transmission assembly is used for driving the fixed shaft to rotate when the welding rod clamped on the clamping device works; the unfreezing component is used for driving the rotation stopping plate and the conversion disc to be separated from contact after the welding rods on the clamping device are released;

the clamping device comprises two clamping plates, two return springs, a plurality of clamping springs, a separating assembly and two driving gears; the clamping plate is vertically arranged on the bracket in a manner of sliding up and down, and one side surface of the clamping plate is a tooth surface; the two clamping plates are symmetrically arranged and can slide relatively, and the initial distance between the two clamping plates is a preset distance so that the distance between the two clamping plates is increased after the welding rod is clamped; the upper end of each reset spring is fixedly connected with the upper end of the clamping plate, and the lower end of each reset spring is fixedly connected with the bracket; the clamping springs are uniformly distributed between the two clamping plates in the vertical direction, and two ends of each clamping spring are fixedly connected with the two clamping plates respectively; the two driving gears are arranged on the bracket in a synchronous rotating manner, so that each clamping gear is meshed with one clamping plate when the two clamping plates clamp welding rods; the separating assembly is used for enabling the two clamping plates to move relatively when the clamping plates slide downwards to a preset distance.

2. An automatic multi-function arc welding apparatus according to claim 1, wherein:

the unfreezing assembly comprises a first unfreezing rod, a second unfreezing rod and an unfreezing gear; the second unlocking rod is a rack and is fixedly connected with the rotation stopping plate; the unlocking gear is meshed with the second unlocking rod and is rotatably arranged on the bracket; the first releasing rod is a rack and is horizontally arranged in a sliding manner, and the first releasing rod is meshed with the releasing gear, so that when the distance between the two clamping plates is gradually increased, the second releasing rod drives the stop plate to be contacted with the conversion plate; the first releasing rod and one clamping plate can be connected in a relatively up-and-down sliding mode so as to drive the first releasing rod to slide synchronously when the two clamping plates are far away from each other.

3. An automatic multi-function arc welding apparatus according to claim 1, wherein:

the separating assembly comprises two push blocks and a push rod; the clamping plate is provided with a separation groove, the separation groove is positioned at one side of the clamping spring, and the upper wall of the separation groove is provided with a clamping block; the push block can be slidably inserted into the separation groove, and the upper side surface of the push block is contacted with the separation groove, so that the clamping block is inserted into the separation groove when the upper side surface of the push block and the upper wall of the separation groove are hijacked; the upper part and the lower part of one end of the push block, which can extend out of the separation groove, are inclined planes; a compression spring is arranged between the push block and the separation groove; the push rod is horizontally and fixedly arranged on the support, and the upper end face and the lower end face of each of the two ends of the push rod are inclined planes, so that when the clamping plate slides downwards to a preset distance, the upper inclined planes at the two ends of the push rod are in contact with the lower inclined planes of the push block.

4. An automatic multi-function arc welding apparatus according to claim 1, wherein:

the transmission assembly comprises a fluted disc, a first bevel gear, a second bevel gear, a gear shaft and a transmission shaft; the bracket is fixedly provided with a fixed plate which is vertically arranged and is positioned between the fixed shaft and the clamping plate; the corresponding surfaces of the two clamping plates are rack surfaces; the fluted disc and the fixed plate are arranged in parallel, and the fluted disc is rotatably arranged on one side of the fixed plate close to the clamping plate; the gear shaft is rotatably arranged on the fixed plate and meshed with the fluted disc; one end of the gear shaft is meshed with a clamping plate; the transmission shaft is rotatably inserted on the fixed plate, and one end of the transmission shaft is fixedly connected with the fluted disc; the first bevel gear and the fluted disc are coaxial and fixedly connected with the other end of the transmission shaft; the second bevel gear is fixedly sleeved on the fixed shaft and meshed with the first bevel gear.

5. An automatic multi-function arc welding apparatus according to claim 4, wherein:

the bracket comprises a supporting frame; the supporting frame is rectangular and annular; the supporting frame is horizontally arranged, and a second notch is formed in the supporting frame; the limiting ring is fixedly connected with the supporting frame, and the first notch is communicated with the second notch; the clamping plate can slide up and down and is arranged in the supporting frame in a horizontal direction; the unfreezing component is arranged on the supporting frame; the driving gear is rotatably provided on the support frame.

6. An automatic multi-function arc welding apparatus according to claim 5, wherein:

two driving boxes are arranged in the supporting frame; the driving box is provided with a driving rod which can be inserted on the driving box in a sliding way in the horizontal direction, and the extension length of the driving rod in an initial state is a limit value; each driving gear is rotatably arranged on one driving rod so as to be meshed with the clamping plate when the driving rod is in an initial state; the driving box is internally provided with a motor which is used for driving the driving gear to rotate.

7. An automatic multi-function arc welding apparatus according to claim 5, wherein:

the bracket also comprises an operation platform and a lifting frame; the operating platform is horizontally arranged; the lifting frame is slidably arranged on the operating platform; the supporting frame is fixedly connected with the upper end of the lifting frame.

8. An automatic multi-function arc welding apparatus according to claim 1, wherein:

the rotating device also comprises a winding groove; the winding groove is barrel-shaped and is fixedly arranged at the axis of the conversion disc; the coil spring is arranged in the coil groove, and the outer end of the coil spring is fixedly connected with the inner wall of the coil groove.