Wire feeding welding mechanism for cylinder body repair

Abstract

The utility model provides a wire feeding welding mechanism for cylinder repair, which comprises a wire reel, a wire feeding pipe with a wire feeding nozzle, a welding gun, a bearing table and a controller, a support supports the wire feeding pipe to be parallel to a workpiece, a welding wire extending out of the wire reel penetrates through the wire feeding pipe and then extends out of the wire feeding nozzle to be in butt joint with a welding position of the workpiece, and the welding gun is fixed at the welding position; the welding gun and the wire feeding pipe are fixed, it is guaranteed that the welding wire cannot be blocked due to bending deformation of the wire feeding pipe during welding, meanwhile, the welding gun and the welding wire are relatively static, the welding quality is guaranteed, the workpiece is rotated through the bearing table for supporting the workpiece, and the welding wire is welded to the welding position of the workpiece in the rotating process of the workpiece. Automatic wire feeding and automatic welding are realized; meanwhile, welding of welding wires at different positions on the workpiece can be met by adjusting the positions of the wire feeding pipe and the welding gun; according to the utility model, stable wire feeding and flexible welding of welding wires are realized, and the welding quality and the welding efficiency are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of surface repair, and particularly relates to a wire feeding and welding mechanism for cylinder repair. BACKGROUND

[0002] In the existing production technical field, some large cylinder structures are often included, and surface defects such as wear, rust marks and dents are caused on the surface of the cylinder structure due to long-time use, improper use, pollution and corrosion and the like. The defects have a great influence on the sealing property of the cylinder, and even cannot meet the normal use of the cylinder structure. Therefore, the existing technology often uses surface repair technology to repair the surface of the damaged workpiece. The surface repair technology not only includes the repair of the inner surface or the outer surface of the workpiece, but also includes the repair of some surface structures, such as a steel wire sealing ring nested in the inner wall of the cylinder. The original damaged steel wire sealing ring needs to be removed, the sealing ring mounting groove needs to be repaired, and finally the new steel wire sealing ring needs to be welded in the sealing groove. In the process, the welding technology of the steel wire sealing ring is involved. The existing wire feeder gradually feeds the coiled steel wire to the welding position, and then controls the welding gun to gradually weld the steel wire in the sealing ring groove.

[0003] In view of the above repair process, a wire feeding mechanism is provided in Chinese public patent CN214023996U. The wire feeding mechanism uses a lead screw arranged at a high position to push the welding gun to move on the working platform, so that the position of the welding gun is adjusted, that is, the position of the welding gun can be flexibly adjusted in different directions to ensure that the welding gun effectively repairs the target equipment, and the purpose of flexibly repairing the target equipment is achieved. The wire feeding pipe is arranged on the welding gun rod and extends below the welding gun nozzle, that is, the wire feeding pipe moves together with the welding gun. However, the moving wire feeding pipe is not conducive to the conveying of the welding wire (referring to the wire welded on the workpiece) in the pipe, which may cause the welding wire to be stuck or affect the uniformity of wire feeding, and then affect the welding efficiency and welding quality. CONTENT OF THE UTILITY MODEL

[0004] The utility model embodiment provides a wire feeding and welding mechanism for cylinder repair to solve the technical problems in the foregoing prior art.

[0005] The utility model provides a kind of wire feeding welding mechanism for cylinder repair, specifically includes: welding wire reel, the wire feeding pipe with wire feeding nozzle, welding torch, receiving table, controller, support the wire feeding pipe is arranged parallel to workpiece, welding wire that the welding wire reel inside extends passes through the wire feeding pipe and then extends from the wire feeding nozzle and the welding position of workpiece is connected, the welding torch is fixed in the welding position;The receiving table includes: support plate, support footrest, the drive assembly including gripper, the base of support footrest is connected with the support plate, the roller of support arm front end of support footrest is connected with the outer surface of workpiece, the gripper is connected with drive unit after clamping workpiece;The support further includes wire feeding assembly, the wire feeding assembly includes at least two sets of pressure rollers arranged in pairs, wire feeding drive is connected with the pressure roller, the outlet of welding wire reel is connected with the wire inlet end of pressure roller, the wire outlet end of pressure roller is connected with the wire feeding pipe;The controller is electrically connected with the welding torch, the gripper, the wire feeding drive.

[0006] Optionally, the bottom surface of the support plate is provided with a screw rod mechanism, and the screw rod mechanism is electrically connected with the controller.

[0007] Optionally, a PCT heater is arranged in the wire feeding pipe; the heating pieces in the heater are provided with grooves, the two heating pieces are arranged oppositely, and the welding wire passes through the gap formed by the two grooves.

[0008] Optionally, the welding wire reel is provided with a vertical support frame, and the vertical support frame comprises a wire clamp, the clamping plate of the wire clamp comprises an n-shaped wire outlet, and the n-shaped wire outlet is opposite to the wire inlet end of the pressure roller.

[0009] Optionally, the wire feeding nozzle and the wire feeding pipe are arranged at a preset angle; the wire feeding nozzle comprises an organ pipe, and the outlet of the organ pipe is a tapered structure.

[0010] Optionally, the support footrest comprises a pair of first footrests and a pair of second footrests, and the support arm of the second footrest comprises a lifting mechanism.

[0011] Optionally, the lifting mechanism comprises a handle, a chain, the chain is arranged between the shaft of the handle and the mounting shaft of the roller, and the teeth on the shaft of the handle are engaged with the chain.

[0012] The utility model has the beneficial effects that:

[0013] The utility model provides a cylinder body repairs with the mechanism of sending wire welding, the welding wire that the welding wire disc inside extends passes with the work piece level setting's sending wire pipe reaches the sending wire mouth, the sending wire mouth is used for extending to the work piece in for welding welding wire's welding position, the welding torch is fixed in the welding position, and the work piece rotation is controlled by using the receiving station, makes the welding wire even be welded in the sealing ring groove of the work piece periphery, that is, the position of fixed welding torch and sending wire pipe in the embodiment, has guaranteed that the welding wire does not occur welding wire obstruction because of the bending deformation of sending wire pipe when welding, and the welding torch and welding wire are relatively stationary, guarantee the quality of welding. Among them, the rotational speed of receiving station, welding parameter, sending speed, the position of welding torch and sending wire pipe etc. are adjusted by using controller, realize automatic sending wire and automatic welding, improve the automation of work piece surface repair, and then improve the efficiency of work piece surface repair. At the same time, by adjusting the position of sending wire pipe and welding torch can satisfy the welding of welding wire at different positions on the work piece, also realize the effect of flexible welding, bring convenience to the operator. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It represents the front structure schematic diagram of a kind of cylinder body repairs with the mechanism of sending wire welding provided in the embodiment of the application;

[0015] Figure 2 It represents Figure 1 The enlarged schematic view of A in it;

[0016] Figure 3 It represents the schematic diagram of the first support and the second support cooperation in the embodiment to support work piece.

[0017] Reference signs:

[0018] 1: welding wire disc;11: vertical support frame;2: sending wire pipe;21: sending wire mouth;3: welding torch;4: receiving station;41: support plate;42: support foot;421: second foot;422: first foot;5: sending wire assembly;51: pressure roller;6: heating sheet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments. In addition, "in an embodiment" or "in an embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments.

[0020] It is also important to note that the terms "first" and "second" and similar relational terms are used solely to distinguish one from another entity without necessarily requiring or implying any actual relationship or order between such entities. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process or method. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process or method comprising the element.

[0021] The existing production technology field often includes some large cylinder structure, long time use, or improper use, or pollution corrosion and other reasons lead to some cylinder structure surface wear, rust, indentation and other surface defects, these defects have a greater impact on the sealing of the cylinder, even can not meet the normal use of cylinder structure, for which the existing technology often uses surface repair technology to repair the surface of damaged workpiece. Surface repair technology not only includes the repair of the inner surface or outer surface of the workpiece, but also includes the repair of some surface structures, such as the steel wire sealing ring nested in the inner wall of the cylinder. The original damaged steel wire sealing ring needs to be removed, and the sealing ring mounting groove is repaired, and finally the new steel wire sealing ring is welded in the sealing groove. The process involves steel wire sealing ring welding technology. The existing wire feeder gradually sends the steel wire from the coil to the welding position, and then controls the welding gun to gradually weld the steel wire in the sealing ring groove. The existing wire feeder welding mechanism realizes flexible welding of the welding wire in the sealing ring groove of the workpiece by flexible control of the welding gun and the wire feeding pipe. However, the disturbed wire feeding pipe will affect the efficiency and quality of wire feeding, and may also cause blockage in the wire feeding pipe, seriously affecting the efficiency and quality of workpiece repair. Therefore, the utility model provides a cylinder repair wire feeding and welding mechanism to solve the high technical problem, and specific reference is made to the following detailed description:

[0022] As Figure 1 And Figure 2The utility model provides a kind of wire feeding welding mechanism for cylinder repair, specifically includes: welding wire reel 1, wire feeding pipe 2 with wire feeding nozzle 21, welding torch 3, receiving table 4, controller, support the wire feeding pipe 2 is arranged parallel to workpiece, welding wire that welding wire reel 1 extends in passes through wire feeding pipe 2 after from wire feeding nozzle 21 extends and is butt joint with the welding position of workpiece, welding torch 3 is fixed in the welding position;The receiving table 4 includes: support plate 41, support footrest 42, drive assembly including clamp jaw, the base of support footrest 42 is connected with support plate 41, the roller of support arm front end of support footrest 42 is connected with the outer surface of workpiece, clamp jaw is used to clamp workpiece, drive unit controls workpiece to rotate according to preset rotational speed;The support also includes wire feeding assembly 5, the wire feeding assembly 5 includes at least two groups of pressure rollers 51 arranged in pairs, wire feeding drive is connected with the pressure roller 51, the outlet of welding wire reel 1 is butt joint with the wire inlet end of pressure roller 51, the wire outlet end of pressure roller 51 is butt joint with wire feeding pipe 2;The controller is electrically connected with welding torch 3, clamp jaw, wire feeding drive.

[0023] As described above, in the wire feeding welding mechanism for cylinder repair, welding wire that welding wire reel 1 extends in passes through wire feeding pipe 2 arranged horizontally with workpiece to reach wire feeding nozzle 21, wire feeding nozzle 21 is used to extend to the welding position of workpiece for welding welding wire, welding torch 3 is fixed in the welding position, and workpiece is controlled to rotate using receiving table 4, so that welding wire is evenly welded in the sealing ring groove of workpiece, that is, the position of fixed welding torch 3 and wire feeding pipe 2 in the embodiment ensures that welding wire will not be blocked due to the bending deformation of wire feeding pipe 2 during welding, and welding torch 3 and welding wire are relatively stationary, which ensures the quality of welding. At the same time, the speed of receiving table 4, welding parameters, wire feeding rate, the position of welding torch 3 and wire feeding pipe 2, etc. are adjusted using the controller, to realize automatic wire feeding and automatic welding, improve the automation of workpiece surface repair, and then improve the efficiency of workpiece surface repair. At the same time, by adjusting the position of wire feeding pipe 2 and welding torch 3, the welding of welding wire at different positions on workpiece can be satisfied, and the effect of flexible welding is also realized, which brings convenience to operators.

[0024] It should be noted that the aforementioned wire feeding nozzle 21 and wire feeding pipe 2 are arranged at a preset included angle;The wire feeding nozzle 21 includes an organ pipe, and the outlet of the organ pipe is a tapered structure. The organ pipe type wire feeding nozzle 21 facilitates the adjustment of the relative position and relative distance between welding wire and welding torch 3, that is, the direction of the incoming welding wire is conveniently adjusted;The outlet of the tapered structure controls the position of the welding wire, that is, the guidance of welding wire movement can be increased.

[0025] Additionally, as shown in Figure 1, the aforementioned pressure roller 51 is a roller used to rub against the surface of the welding wire to pull the welding wire out of the welding wire spool 1. Two motors can be used to control the rotation of the two pressure rollers 51 individually, or one pressure roller 51 can control the rotation of one pressure roller 51 while the other automatically rolls. Embossing structures, i.e., regularly arranged protrusions, can be set on the pressure rollers 51 to increase the friction between the pressure rollers 51 and the surface of the welding wire, thereby improving the wire feeding effect. The controller includes a display module and an operation module. The display module is used to display the welding status of the wire feeder, and the operation module is used to set parameters such as the wire feeding rate of the welding wire spool 1, the power of the welding torch 3, and the rotation speed of the receiving platform 4.

[0026] In some embodiments, the bottom surface of the support plate 41 in the aforementioned wire feeding welding mechanism is provided with a lead screw mechanism, which is electrically connected to the controller. The lead screw mechanism on the support plate 41 is used to allow the workpiece to move under the control of the controller, i.e., to move closer to or away from the location of the wire feed nozzle 21 and the welding torch 3, so as to facilitate welding of welding wire at different depths of the workpiece.

[0027] In other embodiments, a PCT heater is provided inside the aforementioned wire feed tube 2; the heating element 6 inside the heater has a groove, and two heating elements 6 are arranged opposite each other, with the welding wire passing through the gap formed by the two grooves. In this embodiment, the PCT heater generates heat when energized to preheat the welding wire in the wire feed tube 2, thereby improving welding quality. The PTC heating element 6 is a ceramic sheet with electrodes, which has excellent heating stability, heat preservation performance, and insulation performance, making it suitable for heating the continuously feeding welding wire. The preheated welding wire is easier to weld, reducing the power of the welding torch 3 and saving welding energy.

[0028] In some embodiments, the wire spool 1 is provided with a vertical support frame 11, and the vertical support frame 11 includes a wire clamp. The clamp plate of the wire clamp includes an n-shaped wire outlet, which is opposite to the wire inlet end of the pressure roller 51. In this embodiment, the wire spool 1 is fixed by the vertical support frame 11. The wire clamp in the vertical support frame serves two purposes: firstly, it guides the wire, i.e., it controls the wire outlet position; secondly, it fixes the wire, preventing it from returning to the wire spool 1 or preventing excessive wire from extending out of the wire spool 1.

[0029] In some embodiments, such as Figure 3 As shown, the support frame 42 includes a pair of first frames 422 and a pair of second frames 421. The support arm of the second frame 421 includes a lifting mechanism. The lifting mechanism includes a handle and a chain. The chain is disposed between the shaft of the handle and the mounting shaft of the roller. The teeth on the shaft of the handle mesh with the chain.

[0030] In the embodiment, two sets of support legs 42 are arranged, wherein the distance of the support arms of the first leg 422 relative to the base thereof is fixed, and the distance of the support arms of the second leg 421 relative to the base thereof is variable by the lifting mechanism thereon, so that the workpiece can be fixed in an inclined manner under the action of the first leg 422 and the second leg 421, and the welding wire arranged at a special position and a special angle can be welded, of course, the solder is more easily gathered in the sealing ring groove at the welding position due to the fluidity of the solder when the workpiece is welded in an inclined manner, thereby improving the welding quality.

[0031] Finally, the utility model provides a kind of cylinder repair with wire feeding welding mechanism, comprising: welding wire reel 1, welding wire pipe 2 with wire feeding nozzle 21, welding torch 3, receiving table 4, controller, support welding wire pipe 2 is arranged in parallel to workpiece, welding wire that welding wire reel 1 extends is extended from wire feeding nozzle 21 after passing through welding wire pipe 2 and is connected with the welding position of workpiece, and welding torch 3 is fixed in welding position;Receiving table 4 that supports workpiece rotates workpiece, fixed welding torch 3 and welding wire pipe 2 do not move, ensure that welding wire does not occur welding wire obstruction due to the bending deformation of welding wire pipe 2 when welding, while welding torch 3 and welding wire are relatively stationary, guarantee the quality of welding, control receiving table 4 rotates, and workpiece welds welding wire in its welding position in the process of rotation, realize automatic wire feeding and automatic welding;Meanwhile, by adjusting the position of welding wire pipe 2 and welding torch 3, the welding of welding wire at different positions on workpiece can be met;The utility model realizes stable wire feeding and flexible welding of welding wire, and improves welding quality and welding efficiency.

[0032] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own emphasis, and the description not described in detail in individual embodiments can be referred to the description in other embodiments. Each embodiment in the specification is described in a progressive manner, and each embodiment emphasizes the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other.

[0033] The above embodiments only express the implementation of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A wire feed welding mechanism for cylinder repair, characterized by, The application relates to a welding wire feeding device, which comprises a welding wire reel (1), a wire feeding pipe (2) provided with a wire feeding nozzle (21), a welding gun (3), a supporting table (4) and a controller. The bottom surface of the supporting plate (41) is provided with a screw rod mechanism which is electrically connected with the controller.

2. The wire-fed welding mechanism for cylinder repair according to claim 1, characterized in that, The wire feeding pipe (2) is provided with a PCT heater; the heating pieces (6) in the heater are provided with grooves, and two heating pieces (6) are oppositely arranged, and the welding wire passes through the gap formed by the two grooves.

3. The wire-fed welding mechanism for cylinder repair according to claim 2, characterized in that, The welding wire reel (1) is provided with a vertical supporting frame (11) which contains a wire clamping device, the clamping plate of the wire clamping device contains an n-shaped wire outlet, and the n-shaped wire outlet is opposite to the wire inlet end of the pressure roller (51).

4. The wire-fed welding mechanism for cylinder repair according to claim 2, characterized in that, The wire feeding nozzle (21) and the wire feeding pipe (2) are arranged at a preset angle; the wire feeding nozzle (21) comprises an organ pipe, and the outlet of the organ pipe is in a conical structure.

5. The wire-fed welding mechanism for cylinder repair according to claim 1, characterized in that, The supporting foot frame (42) comprises a pair of first foot frames (422) and a pair of second foot frames (421), and the supporting arm of the second foot frame (421) comprises a lifting mechanism.

6. The wire-fed welding mechanism for cylinder repair according to claim 1, characterized in that, The lifting mechanism comprises a handle, a chain, and the chain is arranged between the shaft of the handle and the mounting shaft of the roller, and the teeth on the handle shaft are engaged with the chain.

7. The wire-fed welding mechanism for cylinder repair according to claim 6, characterized in that, ​

Images