CN114654050A

CN114654050A - Repair cold welding equipment

Info

Publication number: CN114654050A
Application number: CN202011538561.9A
Authority: CN
Inventors: 孙伦星; 段磊乐; 刘岗
Original assignee: Shanghai Xindun Automation Technology Co ltd
Current assignee: Shanghai Xindun Automation Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2022-06-24

Abstract

The invention provides a repair cold welding device, which comprises: the mounting plates are arranged on the workbench in parallel and are arranged at intervals in the transverse direction, and a support plate is longitudinally arranged on each mounting plate; the transverse support is transversely arranged on the same side of the at least two support plates, a screw rod is transversely arranged on the transverse support, and a welding gun seat which is used for moving along the transverse direction in a controlled manner so as to adjust the transverse position of a welding gun is arranged on the screw rod; the support plates are provided with a plurality of first mounting holes which are arranged at intervals in the longitudinal direction and used for mounting the transverse supports to adjust the longitudinal position of the transverse supports, and the first mounting holes on the adjacent support plates correspond to the first mounting holes on the adjacent support plates. The invention solves the problem that the position of the welding gun cannot be flexibly adjusted in the prior art, so that the repairing effect on target equipment is influenced.

Description

Repair cold welding equipment

Technical Field

The invention relates to the field of repairing devices, in particular to a cold welding repairing device.

Background

Cold welding is a process that applies mechanical, molecular, or electrical forces to cause the weld material to diffuse to the surface of the tool. The cold welding machines can be classified into build-up welding type cold welding machines, sheet metal repair type cold welding machines, and welding wire rod cold welding machines. The former two are used for repairing the small defects of abrasion, scratch, air hole, sand hole and the like on the surface of metal and casting, and the latter is mainly used for welding non-ferrous metal wires such as silver wires, copper wires, aluminum wires and the like.

When the repair type cold welding machine is used for repairing target equipment, the position of a welding gun is fixed, so that the repair operation cannot be flexibly performed on different positions of the target equipment, and the repair effect on the target equipment is influenced.

In view of the above, there is a need for an improved repair type cold welding machine in the prior art to solve the above problems.

Disclosure of Invention

The invention aims to disclose a repair cold welding device, which solves the problem that the repair effect on target equipment is influenced because the position of a welding gun cannot be flexibly adjusted in the prior art.

To achieve the above object, the present invention provides a repair cold welding apparatus, comprising:

the mounting plates are arranged on the workbench, are parallel to each other and are arranged at intervals in the transverse direction, and a support plate is longitudinally arranged on each mounting plate;

the transverse support is transversely arranged on the same side of the at least two support plates, a screw rod is transversely arranged on the transverse support, and a welding gun seat used for being controlled to move along the transverse direction to adjust the transverse position of a welding gun is arranged on the screw rod;

the support plates are provided with a plurality of first mounting holes which are arranged at intervals in the longitudinal direction and used for mounting the transverse supports to adjust the longitudinal position of the transverse supports, and the first mounting holes on the adjacent support plates correspond to the first mounting holes on the adjacent support plates.

As a further improvement of the invention, the welding gun comprises a welding gun rod and a welding gun nozzle formed at the tail end of the welding gun rod, and a wire feeding pipe for controllably feeding welding wire below the welding gun nozzle is sleeved on the welding gun rod;

the repair cold welding equipment further comprises a control box formed below the workbench, and the control box is internally provided with:

a wire feeding motor connected with a wire feeding pipe arranged on the workbench;

the motor driving circuit is used for driving the wire feeding motor to operate, wherein the wire feeding motor is used for controlling the welding wire in the wire feeding pipe to be output to the position below the welding gun nozzle;

the wire feeding control device also comprises a display which is formed on one side of the workbench and is connected with the control box, and the display is used for responding to a first target input to control the motor driving circuit to drive the wire feeding motor to operate.

As a further improvement of the present invention, the control box is further provided with:

and the control circuit is connected with the motor driving circuit and the display and is used for responding to the first target input to control the motor driving circuit to drive the wire feeding motor to operate.

As a further improvement of the invention, the target side of the support plate is formed with a stabilizing plate forming a preset angle with the support plate, and the stabilizing plate gradually shrinks from bottom to top, and the target side of the support plate is opposite to the side of the support plate where the transverse support is arranged.

As a further improvement of the present invention, a mounting base is formed at the bottom of the supporting plate, and the stabilizing plate is formed on the mounting base;

be formed with a plurality of second mounting holes on the mounting panel, and a plurality of second mounting holes are in interval arrangement on the length direction of mounting panel, the installation base passes through the second mounting hole with the mounting panel links to each other.

As a further improvement of the invention, an arc striking lantern ring is sleeved on the welding gun rod, and a clamping piece for clamping the welding gun rod is arranged in the arc striking lantern ring.

As a further improvement of the present invention, the clip is configured as a plurality of projecting pieces which are arranged on an inner wall of the ignition collar and project in a longitudinal axis direction of the ignition collar.

As a further improvement of the present invention, the protrusion pieces are configured as triangular protrusion metal thin sheets, and fixing pieces attached to the inner wall of the arc striking lantern ring are formed extending from the protrusion parts of the protrusion pieces to both sides of the inner wall of the arc striking lantern ring.

As a further improvement of the invention, the method also comprises the following steps:

the tungsten needle adjuster is used for determining the sleeving position of the arc striking lantern ring movably sleeved on the welding gun rod.

As a further improvement of the invention, the tungsten needle regulator comprises:

a support rod, wherein a placing platform matched with the welding gun nozzle is arranged at one end of the support rod, a protruding part is formed along the peripheral edge of the placing platform, the protruding part is configured to be abutted against the arc striking lantern ring when the placing platform covers the opening of the welding gun nozzle, and the length between the arc striking lantern ring and the opening of the welding gun nozzle is matched with the height of the protruding part;

wherein the support bar is connected to an outer side of the placement platform having the boss.

Compared with the prior art, the invention has the beneficial effects that:

the repair cold welding equipment of the invention respectively and longitudinally arranges a support plate on at least two mounting plates which are arranged on a workbench, are parallel to each other and are arranged at intervals in the transverse direction, and drives a welding gun seat arranged on a lead screw to move along the transverse direction by controlled rotation of the lead screw arranged in a transverse support arranged on the same side of at least two support plates, thereby adjusting the transverse position of a welding gun in the welding gun seat. And the transverse support is installed through a plurality of first installation holes which are formed in the supporting plate and are longitudinally arranged at intervals, so that the longitudinal position of a welding gun of the welding gun seat can be adjusted through adjusting the position of the transverse support in the longitudinal direction. Therefore, the position of the welding gun in the welding gun seat can be flexibly adjusted in different directions, and the problem that the repair effect on target equipment is influenced due to the fact that the position of the welding gun cannot be flexibly adjusted in the prior art is solved.

Drawings

FIG. 1 is a schematic perspective view of a repair cold welding apparatus according to one embodiment of the present invention;

FIG. 2 is a schematic perspective view of a repair cold welding apparatus of one embodiment of the present invention;

FIG. 3 is a schematic perspective view of a support plate of one embodiment of the present invention;

FIG. 4 is a schematic front view of a support plate of one embodiment of the present invention;

FIG. 5 is a schematic enlarged view at A in FIG. 1;

FIG. 6 is a schematic block diagram of an arc initiation collar of one embodiment of the present invention;

FIG. 7 is a block diagram of a schematic circuit configuration of the internal arrangement of the control box of one embodiment of the present invention;

fig. 8 is a schematic structural view of a chuck according to an embodiment of the present invention.

FIG. 9 is a schematic block diagram of a tungsten needle adjustor of one embodiment of the present invention;

FIG. 10 is a schematic block diagram of a tungsten needle regulator in accordance with another embodiment of the present invention.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "positive", "negative", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Please refer to fig. 1 to 10, which illustrate an embodiment of a repair cold welding apparatus according to the present invention.

The repair cold welding apparatus of the present embodiment includes a frame 100, the frame 100 is provided with a table 10, and an adjustment assembly is disposed on the table 10.

The adjusting assembly of this embodiment includes: at least two mounting plates 11 arranged on the workbench 10, wherein the at least two mounting plates 11 are parallel to each other and are arranged at intervals in the transverse direction, and a support plate 12 is longitudinally arranged on each mounting plate 11; and a transverse support 13 transversely arranged on the same side of the at least two support plates 12, wherein the transverse support 13 transversely comprises a lead screw 131, and a welding gun seat 141 used for controllably moving along the transverse direction to adjust the transverse position of a welding gun 142 is arranged on the lead screw 131. Wherein, a plurality of first mounting holes 121 are formed on the support plate 12 and are arranged at intervals in the longitudinal direction for mounting the transverse support 13 to adjust the longitudinal position of the transverse support 13, and the first mounting holes 121 on the adjacent support plates 12 correspond. The mounting plate 11 is mounted on the table 10 in a target direction, which may be perpendicular to the lateral direction and the longitudinal direction, respectively. One side of the transverse support 13 is provided with a driving member (not shown) for driving the screw 131 to rotate so as to drive the welding gun holder 141 to move transversely. The driving member is configured as a driving motor or a driving cylinder to control the screw 131 to rotate through the driving motor or the driving cylinder so as to drive the welding gun seat 141 to move in the transverse direction. The specific process of controlling the driving motor or the driving cylinder to control the screw 131 to rotate is well known to those skilled in the art, and will not be described in detail.

The repair cold welding device of the embodiment drives the welding gun seat 141 arranged on the lead screw 131 to move along the transverse direction through the controlled rotation of the lead screw 131 arranged in the transverse support 13 transversely arranged on the same side of at least two support plates 12 by correspondingly and longitudinally arranging the support plates 12 on at least two mounting plates 11 which are arranged on the workbench 10 and are parallel to each other and arranged at intervals in the transverse direction, thereby adjusting the transverse position of the welding gun 142 in the welding gun seat. Further, the horizontal support 13 is mounted through the plurality of first mounting holes 121 formed in the support plate 12 and arranged at intervals in the vertical direction, and the vertical position of the welding torch 142 of the torch holder 141 can be adjusted by adjusting the position of the horizontal support 13 in the vertical direction. Thus, the position of the welding gun in the welding gun seat can be flexibly adjusted in different directions to ensure that the welding gun 142 can effectively repair the target device 200. Therefore, the problem that the position of a welding gun cannot be flexibly adjusted to influence the repairing effect of target equipment in the prior art is solved.

It should be noted that the adjusting assembly of the present embodiment is generally located on one side of the workbench 10, and the protection door 15 is installed on the other side of the workbench 10. Before the repair apparatus performs the repair on the target device 200, the target device needs to be moved to a position between the adjustment assembly and the guard door 15 in the work table 10.

In the present embodiment, the "lateral direction" refers to the x-axis direction in fig. 1, the "longitudinal direction" refers to the z-axis direction in fig. 1, and the "target direction" refers to the y-axis direction in fig. 1.

Further, a target side of the support plate 12, which is opposite to a side of the support plate 12 on which the lateral support 13 is disposed, is formed with a stabilizing plate 122 forming a predetermined angle with the support plate 12, and the stabilizing plate 122 is gradually contracted from bottom to top. Wherein the target side is arranged opposite to the lateral support 13 on the side of the support plate 12. The preset angle is configured to be any angle value of 30-150 degrees. As such, the stability of the support plate 12 is improved by the provision of the stabilizing plate 122 constituting a predetermined angle with the support plate 12. To further improve the stability of the support plate 12, the predetermined angle is configured to be about 90 degrees, i.e., the stabilizing plate 122 is disposed approximately perpendicular to the support plate 12.

The bottom of the support plate 12 is formed with a mounting base 123, and the stabilizing plate 122 is formed on the mounting base 123. In one embodiment, the mounting plate 11 is formed with a plurality of second mounting holes 111, the plurality of second mounting holes 111 are spaced apart in a length direction of the mounting plate 11, and the mounting base 123 is connected to the mounting plate 11 through the second mounting holes 111. The mounting base 123 is formed with a third mounting hole 111' opposite to the second mounting hole 111. Thus, the mounting base 123 is fixed on the mounting plate 11 through the second mounting hole 111 and the corresponding third mounting hole 111', so that the mounting base 123 is connected with the mounting plate 11. In addition, the mounting base 123 and the mounting plate 11 are fixedly connected through the second mounting holes 111 and the corresponding third mounting holes 111' at different positions on the mounting plate 11, so that the position of the mounting base 123 can be adjusted in the y direction, and thus the position of the welding gun in the welding gun seat can be adjusted in the y direction, and the flexibility of adjusting the position of the welding gun can be further improved.

In another embodiment, a slot for arranging the mounting base 123 and adjusting the position of the mounting base 123 in the length direction of the mounting plate 11 is formed on the mounting plate 11. The mounting base 123 is formed with a snap-fit portion located in the snap-fit groove. Thus, the installation base 123 is connected with the installation base 11 through the matching connection between the clamping groove formed by the installation base 11 and the clamping portion formed by the installation base 123. The matching connection between the card slot formed by the mounting plate 11 and the card portion formed by the mounting base 123 is common knowledge in the art, and is not described in detail here.

The welding gun 142 includes a welding gun bar 1421 and a welding gun mouth 1422 formed at the end of the welding gun bar 1421, wherein the welding gun bar 1421 is sleeved with a wire feeding tube 16 for controllably feeding a welding wire below the welding gun mouth 1422.

Specifically, the wire feed control device of the present embodiment includes: a control box 60 formed below the work table, a power supply circuit 61 being arranged in the control box 60; the rectification filter circuit 62 is used for rectifying and filtering the signal output by the power supply circuit and sending the signal to the control circuit 63; and a control circuit 63, and the control circuit 63 may be configured as a circuit constituted by a single chip microcomputer (e.g., an STC series single chip microcomputer, a 51 series single chip microcomputer, or the like) or a programmable controller (e.g., FX3U series PLC).

A motor driving circuit 64 connected with the control circuit 63 is also arranged in the control box 60; and a wire feed motor 65 coupled to wire feed tube 16 (wire feed motor 65 may be coupled to wire feed tube 16 by a hose 161). The control circuit 63 controls the motor driving circuit 64 to drive the wire feeding motor 65 to operate, so as to control the wire feeding tube 16 to feed the welding wire under the action of the operation of the wire feeding motor 65 to the position below the welding gun nozzle 1422. The power supply circuit 61 supplies power to the rectifier filter circuit 62, the control circuit 63, and the motor drive circuit 64, respectively. The wire feed control assembly also includes a display 66 formed on one side of the table 10 and coupled to the control box 60 for controlling the motor drive circuit 64 to drive the wire feed motor 65 in operation in response to a first target input. The wire feeding control device of the embodiment further comprises: a torch motor 67 is coupled to the display 66 for operation in response to a second target input from the display 66 to control operation of the torch 142. Wherein the torch motor 67 is connected to the motor drive circuit 64, and the motor drive circuit 64 is configured to control the operation of the torch motor 67 in response to a second target input.

It can be seen that the wire feed control apparatus of the present embodiment controls the motor driving circuit 64 to drive the wire feed motor 65 to operate through the first target input formed on the display 66, so as to control the wire feed tube 16 to output the welding wire below the gun nozzle 1422 through the operation of the wire feed motor 65, and thus to ensure that the gun nozzle 1422 can weld the target device through the welding wire fed through the wire feed tube 16. Thus, the wire feeding motor 65 is automatically controlled to drive the wire feeding pipe 16 to feed welding wires to the welding gun nozzle 1422, so that the repair efficiency of target equipment can be effectively improved, and the problem that the repair efficiency of a repair type cold welding machine is reduced because welding materials cannot be timely conveyed to the welding gun nozzle in the prior art is solved.

The specific process of the rectifying and filtering circuit 62 rectifying and filtering the signal output by the power circuit and sending the signal to the control circuit 63, the process of the control circuit 63 controlling the motor driving circuit 64 to drive the wire feeding motor 65 to operate, and the specific process of the wire feeding tube 16 feeding the welding wire by the operation of the wire feeding motor 65 are well known to those skilled in the art, and will not be described in detail. Moreover, the specific process of the user touching the display 66 by touch or the like to form the first target input or the second target input, the specific process of the control circuit 63 controlling the motor driving circuit 64 to drive the wire feeding motor 65 to operate based on the first target input, and the specific process of the control circuit 63 controlling the motor driving circuit 64 to drive the welding gun motor 67 to operate based on the second target input are well known in the art, and will not be described in detail herein.

Further, the welding gun holder 141 is provided with an arc voltage sensor 171, and an arc striking collar 172 which is close to the welding gun tip 1422 and connected to the arc voltage sensor 171 is sleeved on the welding gun rod 1421. Specifically, one end of the arc striking collar 172 is connected to an insulating sleeve 173 accommodating a lead wire 174, and a terminal of the insulating sleeve 173 is formed with a tab 175 communicating with the lead wire 174. The arc pressure sensor 171 may be connected to the arc striking collar 172 through a thimble 1423. A fixing plate 1424 for fixing the torch bar 1421 may be disposed on the thimble 1423. The arc initiation collar 172 is configured as a metal ring.

A clamping member 176 for clamping the gun bar 1421 is disposed in the arc striking collar 172. The clamp 176 is configured as a plurality of projecting pieces that are arranged on the inner wall of the ignition collar 172 and project toward the longitudinal axis direction of the ignition collar. The protrusion is configured as a metal sheet with a triangular protrusion, and a fixing piece 1761 attached to the inner wall of the arc striking sleeve 172 is formed at both ends extending from the protrusion of the protrusion to the inner wall of the arc striking sleeve 172 in both lateral directions.

So set up, this embodiment makes the cover establish at the start of a welding torch lantern ring 172 centre gripping welding torch pole 1421 of welding torch pole 1421 through the holder 176 that sets up in start of a welding torch lantern ring 172 to strengthen the fixed between start of a welding torch pole 1421 and the start of a welding torch lantern ring 172, prevent to lead to the welder to the repair position of target equipment to take place the dislocation because the start of a welding torch lantern ring is fixed not firm with the welding torch pole, effectively make welding material ignition arc through start of a welding torch lantern ring 172 simultaneously, in order to improve the repair efficiency of repair equipment to target equipment. Therefore, the problems that the repair type cold welding machine in the prior art cannot accurately align the repair position, so that the repair position of target equipment is misplaced, and the repair type cold welding machine cannot enable welding materials to effectively ignite electric arcs to influence the repair efficiency are solved.

In any of the above embodiments, the table 10 is provided with a chuck mounting mechanism for mounting the chuck. Specifically, the chuck mounting mechanism includes: the longitudinal side of the table 10 is configured with two mounting brackets 31 arranged transversely on the table 10 and longitudinally spaced apart, a fixing plate 32 is arranged between the two mounting brackets 31, a target side of the fixing plate 32 is configured with a chuck 33, and the chuck 33 is configured with a clamping assembly 34 for clamping the target device 200. The rail 35 is disposed on at least two of the mounting plates 11 and is used for mounting the target device 200, and the target side of the fixing plate 32 is the side of the fixing plate 32 facing the rail 35. The number of the rails 35 may be two, and the projection of the welding torch holder 141 on the workbench 10 in the z direction is located between the projections of the two rails 35 on the workbench, or at least partially overlaps with the projection of one of the rails on the workbench. The two guide rails 35 are provided with sliding supports 36 connected with the guide rails 35 in a sliding manner, and ejector pins 37 for positioning the target device 200 are arranged on the sliding supports 36. The ejector pins 37 and the chucks 33 are respectively located at both sides of the target apparatus 200 to position both sides of the target apparatus 200 through the chucks 33 and the ejector pins 37, respectively, thereby ensuring stability of the target apparatus 200.

Specifically, the mounting bracket 31 is composed of a mounting base plate 311 arranged laterally on the table 10, a vertical plate 312 formed vertically on the mounting base plate 311, and the vertical plate 312 is tapered from the mounting base plate 311 in a direction away from the mounting base plate 311. The vertical plate 312 may be configured as a trapezoidal plate, a triangular plate, or the like. This improves the stability of mounting to the chuck 33 by providing the vertical plate 312. In addition, the mounting portions 321 extend from the outer periphery of the fixed plate 32 in a direction away from the target side of the fixed plate 32, and the mounting portions 321 corresponding to the two sides of the fixed plate 32 opposite to the vertical plates 312 are attached and fixed to the inner sides of the vertical plates 312, so that the mounting portions 321 are attached and fixed to the inner sides of the two vertical plates 312, and the mounting effect on the chuck 33 is further improved. Thus, the stability of the chuck 33 for holding the target device 200 by the holding member 34 is improved by improving the stability of the mounting of the chuck 33.

A chuck base 331 for arranging the chuck 33 is installed on the fixing plate 32, and the chuck 33 is coaxially arranged with the chuck base 331. The chuck 33 is composed of a chuck housing 332, a first bevel gear 333 provided in the chuck housing 332, and a second bevel gear 334 penetrating a side wall of the chuck housing 332 and engaged with the first bevel gear 333, and the clamping assembly 34 is configured as a plurality of jaws formed on an end surface of the chuck and controlled to simultaneously approach or be discrete. Wherein, the back of the first bevel gear 333 has a plane thread structure, and a plurality of jaws are equidistantly mounted on the plane thread. The number of pawls is the same as the number of second bevel gears 334. It should be understood that a wrench (not shown) penetrates through the sidewall of the chuck housing 332 through the through hole 335 to drive the first bevel gear 333 to rotate by driving the second bevel gear 334 to rotate, so that the planar thread structure on the back of the first bevel gear 333 drives the plurality of jaws to approach or separate simultaneously for the purpose of clamping or releasing the target device 200.

It can be understood that the repair type cold welding machine of the present embodiment is configured by two mounting brackets 31 and a fixing plate 32 for mounting and fixing a chuck 33, and clamping one end of the target device 200 by a clamping assembly 34 arranged on the chuck 33, and positioning the other end of the target device by an ejector 37, so as to improve the fixing effect on the target device, and prevent the target device from being tilted to result in a poor repairing effect of the welding gun 142 on the target device.

The present embodiment further provides a tungsten needle adjustor 20 movably inserted under a welding torch tip 1422 formed at the end of the welding torch bar 1421 to cover an opening of the welding torch tip 1422, for determining a sleeving position of the arc striking collar 172 movably sleeved on the welding torch bar 1421. The tungsten needle adjustor 20 may include: the bracing piece 21, the one end of bracing piece 21 disposes the place the platform 22 with welding gun mouth 1422 opening phase-match, is formed with the bellying 23 along the periphery edge of place the platform 22, and the bellying 23 constructs to be supported with the striking lantern ring 172 when place the platform 22 cover in the opening part of welding gun mouth 1422, and the length between the opening of striking lantern ring 172 and welding gun mouth 1422 matches with the height of bellying 23. Wherein the support bar 21 is connected to the side of the placement platform 22 having the boss 23.

In the regulator 20 of the tungsten needle of the present embodiment, the placing platform 22 configured at one end of the supporting rod 21 covers the opening of the welding gun tip 1422, so that the protruding portion 23 blocks the arc striking collar 172 movably sleeved on the welding gun rod 1421 from abutting against the arc striking collar 172, so as to determine the sleeving position of the arc striking collar 172 on the welding gun rod 1421 according to the height of the protruding portion 23, thereby accurately positioning the arc striking collar 172, and enabling the arc striking collar 172 to be close to the opening of the welding gun tip 1422, so as to ensure that the welding gun tip 1422 can effectively strike an arc to weld a target device. Therefore, the tungsten needle regulator 20 of the embodiment solves the problem that the repair type cold welding machine in the prior art cannot cause the welding material to effectively ignite the electric arc, so that the repair efficiency is affected.

Further, the placement stage 22 is configured as a circular sheet, and the convex portion 23 is configured as an arc-shaped convex portion. In a specific embodiment, the protruding portion 23 is composed of a first arc-shaped protruding portion 231a formed along the outer circumference of the placing platform 22, and a second arc-shaped protruding portion 232a formed along the outer circumference of the first arc-shaped protruding portion 231 a. The thickness of the second arc-shaped protrusion 232a is greater than that of the first arc-shaped protrusion 231 a.

In another specific embodiment, the convex portion 23 is composed of a first arc-shaped convex portion 231b formed along the outer circumferential edge of the placing table 22, a second arc-shaped convex portion 232b formed along the outer circumferential edge of the first arc-shaped convex portion 231b, and a third arc-shaped convex portion 233b formed along the outer circumferential edge of the second arc-shaped convex portion 232 b. The thicknesses of the third arc-shaped protrusion 233b, the second arc-shaped protrusion 231b, and the first arc-shaped protrusion 231b are gradually reduced.

The placement stage 22 is configured as a rectangular sheet, and the boss 23 is configured as a rectangular boss. Of course, the placement platform 22 and the corresponding protrusion 23 may be configured with other structural shapes, which are not described in detail.

In any of the above embodiments, the other end of the support rod 21 (opposite to the end of the support rod 21 where the placement platform 22 is mounted) is provided with a collar 24 that facilitates hanging in a fixed position to prevent the tungsten needle adjuster 20 from being lost.

In addition, the repair type cold welding machine of the embodiment is mainly used for repairing shaft metal and castings. Of course, the repairing device of the present embodiment can also be used for metals and castings with other shapes or structures, which is not illustrated.

The above-listed detailed description is merely a detailed description of possible embodiments of the present invention, and it is not intended to limit the scope of the invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A repair cold welding apparatus, comprising:

the mounting plates are arranged on the workbench, are parallel to each other and are arranged at intervals in the transverse direction, and each mounting plate is longitudinally provided with a support plate;

2. A repair cold welding apparatus according to claim 1,

the welding gun comprises a welding gun rod and a welding gun nozzle formed at the tail end of the welding gun rod, and a wire feeding pipe used for controllably feeding a welding wire to the lower part of the welding gun nozzle is sleeved on the welding gun rod;

3. A repair cold welding apparatus according to claim 2, wherein said control box is further provided with:

4. A repair cold welding apparatus according to claim 1,

the target side of the supporting plate is formed with a stabilizing plate which forms a preset angle with the supporting plate, the stabilizing plate gradually contracts from bottom to top, and the target side of the supporting plate is opposite to one side of the supporting plate, wherein the transverse support is arranged in the supporting plate.

5. A repair cold welding apparatus according to claim 4,

a mounting base is formed at the bottom of the supporting plate, and the stabilizing plate is formed on the mounting base;

6. A repair cold welding apparatus according to claim 2,

the welding gun rod is sleeved with an arc striking lantern ring, and a clamping piece used for clamping the welding gun rod is arranged in the arc striking lantern ring.

7. A repair cold welding apparatus according to claim 6,

the clamping piece is configured to be a plurality of protruding pieces which are arranged on the inner wall of the arc striking lantern ring and protrude towards the longitudinal axis direction of the arc striking lantern ring.

8. A repair cold welding apparatus according to claim 7,

the protruding piece is configured into the protruding foil of triangle, and certainly protruding position of protruding piece extends to the both ends of striking lantern ring inner wall to both sides direction and is formed with the stationary blade of striking lantern ring inner wall laminating.

9. A repair cold welding apparatus according to claim 2, further comprising:

10. A repair cold welding apparatus according to claim 9, wherein said tungsten needle adjuster comprises:

a support rod, wherein a placing platform matched with the welding gun nozzle is arranged at one end of the support rod, a bulge part is formed along the peripheral edge of the placing platform, the bulge part is in butt joint with the arc striking lantern ring when the placing platform covers the opening of the welding gun nozzle, and the length between the arc striking lantern ring and the opening of the welding gun nozzle is matched with the height of the bulge part;