CN116408529A - Pressure resistance welding device for filament winding welding of slender tube - Google Patents

Abstract

The invention relates to a pressure resistance welding device for wire winding welding of slender pipes, wherein a first welding assembly, a second welding assembly and a steel wire clamping and rotating mechanism are all arranged on a welding bracket, a steel wire unwinding mechanism and an auxiliary correcting mechanism are movably arranged on two sides of the welding bracket, a plurality of supporting wheel seats with supporting wheel transmission assemblies and supporting wheels are arranged on the welding bracket, a chuck and a rotating shaft in the steel wire clamping and rotating mechanism are driven to synchronously rotate through a rotating motor, the rotating motor transmits torque through the rotating transmission assemblies, the supporting wheels are driven to rotate through the rotating shaft, the rotating shaft transmits torque through the supporting wheel transmission assemblies, the first welding assembly is provided with a first electrode capable of being opened and closed, the second welding assembly is provided with a centering sleeve and a second electrode capable of being opened and closed, the steel wire unwinding mechanism is provided with a pickup clamping jaw capable of being opened and closed, and the auxiliary correcting mechanism is provided with a correcting tool capable of being opened and closed. The invention can automatically realize the wire winding of the steel tube and the welding operation of the steel tube and the steel wire, and ensure the product quality.

Description

Pressure resistance welding device for filament winding welding of slender tube

Technical Field

The invention relates to the field of welding devices, in particular to a pressure resistance welding device for welding an elongated tube by winding wires.

Background

With the rapid development of modern industry, the requirements of various fields are becoming finer, wherein a spiral stainless steel thin wire wound on an elongated stainless steel tube is used as a special-purpose product in some fields, such as aviation, ships, nuclear power, etc., and the product is characterized by difficult workpiece processing, high manufacturing cost, and relatively slow processing technology development, and is used only in specific fields. The traditional mode is to fix the spiral stainless steel thin steel wire on the slender stainless steel pipe by adopting argon arc welding, but the mode has obvious defects such as uneven fixing and forming of products, wide variation of mechanical parameters, poor consistency and the like, which leads to lower production efficiency and yield of the products and unstable production. The invention of pressure resistance welding is at the end of nineteenth century, the research and development background is as a connecting and fixing of thin pieces, and the slender stainless steel tube and the slender stainless steel wire just accord with the characteristics of the welding base metal, so how to apply the welding mode to the welding of the slender stainless steel tube and the slender stainless steel wire is a problem to be considered.

Disclosure of Invention

The invention aims to provide a pressure resistance welding device for welding a long and thin pipe wire winding, which can automatically realize welding operation of steel pipe wire winding and steel pipe and steel wire, ensure consistency of welding seams and welding quality at two ends of the steel pipe, ensure quality and consistency of the wire winding, ensure product quality and greatly improve production efficiency.

The aim of the invention is realized by the following technical scheme:

the pressure resistance welding device for the wire winding welding of the slender pipe comprises a steel wire clamping and rotating mechanism, a first welding component, a second welding component, a steel wire unwinding mechanism and an auxiliary correcting mechanism, wherein the first welding component and the second welding component are movably arranged on a welding bracket, the steel wire clamping and rotating mechanism is arranged at the end part of the welding bracket, which is close to the first welding component, the steel wire unwinding mechanism is movably arranged at one side of the welding bracket, the auxiliary correcting mechanism is movably arranged at the other side of the welding bracket, a plurality of supporting wheel seats are arranged on the welding bracket, a supporting wheel transmission component and supporting wheels are arranged on the supporting wheel seats, the steel wire clamping and rotating mechanism comprises a rotating motor, a rotating transmission component, a rotating shaft and a chuck, the chuck and the rotating shaft are synchronously rotated through the driving of the rotating motor, and the rotating motor transmits torque through the rotating transmission component, the supporting wheel is driven to rotate through the rotating shaft, the rotating shaft transmits torque through the supporting wheel transmission assembly, the first welding assembly is provided with a first electrode, the second welding assembly is provided with a centering sleeve and a second electrode, the steel wire unwinding mechanism is provided with a pickup clamping jaw, the auxiliary straightening mechanism is provided with a straightening tool, the steel wire is clamped with the head end of the steel pipe through the straightening tool and welded through the first electrode, then the head end of the steel pipe is clamped and fed into the chuck through the pickup clamping jaw to be fixed, the centering sleeve is sleeved at the tail end of the steel pipe along with the movement of the second welding assembly, then the steel pipe is driven to rotate through the chuck and the supporting wheel, the steel wire unwinding mechanism releases the steel wire and moves from the head end of the steel pipe to the tail end of the steel pipe, then the centering sleeve is moved out of the tail end of the steel pipe along with the movement of the second welding assembly, and simultaneously the second electrode moves to the tail end of the steel pipe, and then the steel wire and the tail end of the steel pipe are clamped through the correcting tool and welded through the second electrode.

The rotary transmission assembly of the steel wire clamping and rotating mechanism comprises a rotary driving belt wheel, a rotary transmission belt and a rotary driven belt wheel, wherein the rotary driving belt wheel is coaxially and fixedly connected with the chuck and is driven to rotate by the rotary motor, the rotary driving belt wheel is connected with the rotary driven belt wheel by the rotary transmission belt, and the rotary driven belt wheel is coaxially and fixedly connected with the rotary shaft; the supporting wheel transmission assembly comprises a supporting driving wheel and a supporting transmission belt, wherein the supporting driving wheel is arranged on the rotating shaft and is connected with the corresponding supporting wheel through the supporting transmission belt.

The welding device comprises a welding bracket, a first welding assembly and a first electrode, wherein the welding assembly comprises a first sliding seat, a first driving assembly, a first steel tube clamping cylinder, a first electrode clamping cylinder and a first spring, the first sliding seat is in sliding connection with the welding bracket and is driven to move by the first driving assembly, the first steel tube clamping cylinder, the first electrode clamping cylinder and the first spring are all arranged on the first sliding seat, a clamping jaw capable of being opened and closed is arranged at the upper end of the first steel tube clamping cylinder, one end of the first spring is fixedly arranged on the first sliding seat, and a first electrode is arranged at the other end of the first spring and at the end part of a cylinder rod of the first electrode clamping cylinder.

The first driving assembly comprises a first motor, a first driving belt wheel, a first driving belt, a first driven belt wheel, a first screw rod and a first screw nut, wherein the first motor, the first driven belt wheel and the first screw rod are all arranged on the welding bracket, the first driving belt wheel is installed on an output shaft of the first motor, the first driving belt wheel is connected with the first driven belt wheel through the first driving belt, the first driven belt wheel is fixedly connected with the first screw rod in a coaxial mode, and the first screw nut is sleeved on the first screw rod and fixedly connected with the first sliding seat.

The second welding assembly comprises a second sliding seat, a second driving assembly, a second electrode clamping cylinder and a second spring, wherein the second sliding seat is in sliding connection with the welding support and driven to move through the second driving assembly, the centering sleeve, the second electrode clamping cylinder and the second spring are all arranged on the second sliding seat, one end of the second spring is fixedly arranged on the second sliding seat, the other end of the second spring and the end part of a cylinder rod of the second electrode clamping cylinder are both provided with a second electrode, and the centering sleeve is coaxial with the chuck and is arranged on one side of the second electrode far away from the first welding assembly.

The second driving assembly comprises a second motor, a second lead screw and a second screw nut, wherein the second lead screw is driven to rotate by the second motor, and the second screw nut is sleeved on the second lead screw and fixedly connected with the second sliding seat.

The steel wire unwinding mechanism comprises a driving sliding seat and a movable driving assembly, wherein the steel wire unwinding mechanism is arranged on a wire unwinding bracket, the driving sliding seat is in sliding connection with the wire unwinding bracket and is driven to move by the movable driving assembly, a wire unwinding machine is arranged on the driving sliding seat, an installation seat is arranged at the upper end of the driving sliding seat, a pinch roller cylinder, a second steel pipe clamping cylinder, a cylinder driving device and an output port of the wire unwinding machine are arranged on the installation seat, a pinch roller is arranged at the end part of the cylinder rod of the pinch roller cylinder, the pinch roller is positioned at the upper side of the output port of the wire unwinding machine, the second steel pipe clamping cylinder is driven to move by the cylinder driving device, and a pickup clamping jaw capable of being opened and closed is arranged at the lower end of the second steel pipe clamping cylinder.

The movable driving assembly comprises a driving motor, a driving belt wheel, a driving transmission belt, a driving driven belt wheel, a driving screw and a driving screw nut, wherein the driving motor, the driving driven belt wheel and the driving screw nut are all arranged on the wire unwinding bracket, the driving belt wheel is arranged on an output shaft of the driving motor, the driving belt wheel is connected with the driving driven belt wheel through the driving transmission belt, the driving driven belt wheel is coaxially and fixedly connected with the driving screw nut, and the driving screw nut is sleeved on the driving screw nut and fixedly connected with the driving sliding seat.

The auxiliary correction mechanism comprises an auxiliary sliding seat, an auxiliary driving assembly, a correction clamping cylinder, a clamp, a first stretching cylinder and a second stretching cylinder, wherein the auxiliary correction mechanism is arranged on a correction support, the auxiliary sliding seat is in sliding connection with the correction support and is driven to move by the auxiliary driving assembly, the correction clamping cylinder, the clamp, the first stretching cylinder and the second stretching cylinder are all arranged on the auxiliary sliding seat, and the correction clamping cylinder is provided with a stretching correction tool, the stretching tool can be stretched and closed, the correction clamping cylinder is driven to move by the first stretching cylinder, and the clamp is driven to move by the second stretching cylinder.

The auxiliary driving assembly comprises an auxiliary driving motor, an auxiliary driving belt wheel, an auxiliary driving transmission belt, an auxiliary driven belt wheel, an auxiliary driving screw and an auxiliary driving screw nut, wherein the auxiliary driving motor, the auxiliary driven belt wheel and the auxiliary driving screw nut are all arranged on the correction support, the auxiliary driving belt wheel is arranged on an output shaft of the auxiliary driving motor, the auxiliary driving belt wheel is connected with the auxiliary driven belt wheel through the auxiliary driving transmission belt, the auxiliary driven belt wheel is fixedly connected with the auxiliary driving screw nut in a coaxial mode, and the auxiliary driving screw nut is sleeved on the auxiliary driving screw nut and fixedly connected with the auxiliary sliding seat.

The invention has the advantages and positive effects that:

1. because the thin stainless steel tube has longer length and larger flexibility, and the thin stainless steel wire has larger elasticity, larger inconsistency exists when the thin stainless steel tube and the thin stainless steel wire are matched each time, the precision is not guaranteed, the welding quality is not guaranteed, the contact sectional area is smaller (point contact) when the steel tube and the steel wire are in butt welding, and the welding implementation is not facilitated.

2. The invention can ensure that the steel pipe is firmly positioned before welding, and the electrodes are in a combined mode of the air cylinder and the spring, so that the acting force is always the spring force, thereby ensuring that the acting forces of the two electrodes on the steel pipe and the steel wire are consistent during welding, and effectively ensuring the consistency of welding seams and forming.

3. According to the invention, the steel pipe clamping and rotating mechanism, the supporting wheels, the steel wire unwinding mechanism and the like are matched to finish the wire winding operation, wherein the chuck and the transmission shaft in the steel pipe clamping and rotating mechanism are driven by the same motor, so that the rotating speed of each supporting wheel is matched with the rotating speed of the chuck, the whole steel pipe is driven to rotate at the same rotating speed, in the winding process, the tail end of the steel pipe is supported by the centering sleeve in the second welding assembly to ensure the coaxiality with the head end of the steel pipe, and meanwhile, the steel wire unwinding mechanism is provided with the pinch roller to compress the steel pipe, so that the winding quality of the steel wire can be fully ensured, and the quality of a processed product is stable and consistent.

4. The invention can monitor the rotation angle of the steel pipe in real time, thereby accurately determining the rotation position of the steel pipe, and simultaneously, the equipment system can automatically control each mechanism to move or rotate, thereby completing the welding and wire winding operation of the steel pipe in a matching way, and having high automation degree.

Drawings

Figure 1 is a top view of the present invention,

figure 2 is a front view of the steel pipe clamping and rotating mechanism of figure 1,

figure 3 is a top view of the first welding assembly of figure 1,

figure 4 is a front view of the first welding assembly of figure 3,

figure 5 is a left side view of the first welding assembly of figure 3,

figure 6 is a front view of the wire payout mechanism of figure 1,

figure 7 is a right side view of the wire payout mechanism of figure 6,

figure 8 is a top view of the auxiliary orthotic mechanism of figure 1,

figure 9 is a front view of the auxiliary orthotic mechanism of figure 8,

figure 10 is a left side view of the auxiliary orthotic mechanism of figure 8,

figure 11 is a top view of the second welding assembly of figure 1,

figure 12 is a front view of the second welding assembly of figure 11,

fig. 13 is a left side view of the second welding assembly of fig. 11.

Wherein 1 is a wire clamping and rotating mechanism, 101 is a rotating motor, 102 is a rotating transmission belt, 103 is a chuck, 104 is a rotating shaft, 105 is a supporting transmission belt, 106 is a supporting wheel, 107 is an angle sensor, 2 is a first welding component, 201 is a first sliding seat, 202 is a first motor, 203 is a first transmission belt, 204 is a first end seat, 205 is a first lead screw, 206 is a first sliding block, 207 is a first steel tube clamping cylinder, 2071 is a clamping jaw, 208 is a first electrode clamping cylinder, 209 is a first spring, 210 is a first electrode, 3 is a second welding component, 301 is a second motor, 302 is a centering sleeve, 303 is a second lead screw, 304 is a second electrode, 305 is a second electrode clamping cylinder, 306 is a second spring, 4 is an auxiliary correction mechanism, 401 is auxiliary driving motor, 402 is auxiliary driving transmission belt, 403 is auxiliary driving screw, 404 is auxiliary sliding seat, 4041 is auxiliary driving sliding block, 405 is clamp, 406 is correction clamping cylinder, 4061 is correction fixture, 407 is second end seat, 5 is wire unwinding mechanism, 501 is driving motor, 502 is driving transmission belt, 503 is driving screw, 504 is driving sliding seat, 5041 is driving sliding block, 505 is pinch roller, 506 is pinch roller cylinder, 507 is second steel tube clamping cylinder, 5071 is pick-up clamping jaw, 508 is mounting seat, 509 is wire unwinding machine, 6 is correction bracket, 601 is third slide rail, 7 is welding bracket, 701 is supporting wheel seat, 702 is detection support, 703 is first slide rail, 8 is wire unwinding bracket, 801 is second slide rail, 9 is steel tube.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

As shown in fig. 1-13, the invention comprises a steel wire clamping and rotating mechanism 1, a first welding component 2, a second welding component 3, a steel wire unwinding mechanism 5 and an auxiliary straightening mechanism 4, wherein the first welding component 2 and the second welding component 3 are movably arranged on a welding bracket 7, the steel wire clamping and rotating mechanism 1 is arranged at the end part of the welding bracket 7, which is close to the first welding component 2, the steel wire unwinding mechanism 5 is movably arranged at one side of the welding bracket 7, the auxiliary straightening mechanism 4 is movably arranged at the other side of the welding bracket 7, as shown in fig. 1-2, a plurality of supporting wheel seats 701 are arranged on the welding bracket 7, each supporting wheel seat 701 is arranged between the first welding component 2 and the second welding component 3, a supporting wheel transmission component and a supporting wheel 106 are arranged on the supporting wheel seat 701, the wire clamping and rotating mechanism 1 comprises a rotating motor 101, a rotating transmission assembly, a rotating shaft 104 and a chuck 103, the chuck 103 and the rotating shaft 104 are driven to synchronously rotate by the rotating motor 101, the rotating motor 101 is driven to rotate by the rotating transmission assembly, the supporting wheel 106 is driven to rotate by the rotating shaft 104, the rotating shaft 104 is driven to transmit torque by the supporting wheel transmission assembly, as shown in fig. 3-5, the first welding assembly 2 is provided with a first electrode 210 which can be opened and closed, as shown in fig. 11-13, the second welding assembly 3 is provided with a centering sleeve 302 and a second electrode 304 which can be opened and closed, as shown in fig. 6-7, the wire unwinding mechanism 5 is provided with a pickup clamping jaw 5071 which can be opened and closed, as shown in fig. 8-10, and the auxiliary correcting mechanism 4 is provided with a clamp 405 and a correction tool 4061 which can be opened and closed.

When the invention works, the steel tube 9 is supported by the supporting wheels 106 at the upper ends of the supporting wheel seats 701, then the auxiliary straightening mechanism 4 and the steel wire unwinding mechanism 5 are moved to one end of the welding bracket 7 provided with the first welding component 2, when the steel wire released by the steel wire unwinding mechanism 5 is aligned with the head end of the steel tube 9, the straightening tool 4061 of the auxiliary straightening mechanism 4 stretches out and closes to clamp the steel wire with the head end of the steel tube 9 in an auxiliary way, the straightening tool 4061 can enlarge the contact area of the steel wire with the head end of the steel tube 9, is of a profiling structure matched with the shape of the steel tube 9, then the first welding component 2 is moved to the head end of the steel tube 9, the first electrode 210 is electrified to realize the welding of the steel wire end and the head end of the steel tube 9, the straightening tool 4061 releases the steel tube 9 after the welding is completed, the pick-up clamping jaw 5071 in the steel wire unwinding mechanism 5 clamps the steel tube 9, and the steel wire unwinding mechanism 5 moves to send the head end of the steel pipe 9 into the chuck 103 of the steel wire clamping and rotating mechanism 1 to clamp and fix, the second welding component 3 moves to enable the centering sleeve 302 to be sleeved at the other end of the steel pipe 9, then the rotating motor 101 in the steel wire clamping and rotating mechanism 1 starts to drive the chuck 103 and the rotating shaft 104 to rotate simultaneously, meanwhile, the steel wire unwinding mechanism 5 moves along the length direction of the welding bracket 7 to release the steel wire, the steel wire winds the steel pipe 9 along with the rotation of the steel pipe 9, the transmission shaft 104 and the chuck 103 synchronously rotate through the same motor drive, the rotating speeds of the supporting wheels 106 and the chuck 103 can be matched, so as to drive the steel pipe 9 to integrally rotate at the same rotating speed, and in the winding process, because the centering sleeve 302 and the center of the chuck 103 are coaxially arranged, the tail end of the steel pipe 9 is supported by the centering sleeve 302 to ensure coaxiality with the head end of the steel pipe 9, so that the winding quality of the steel wire is ensured, a processed product is more stable and consistent, when the steel wire is wound to the tail end of the steel pipe 9, the auxiliary straightening mechanism 4 is also moved to the tail end of the steel pipe 9, the straightening tool 4061 stretches out of the closed auxiliary clamping steel wire and the tail end of the steel pipe 9 again, then the clamp 405 stretches out of the sheared steel wire, then the second welding assembly 3 moves backwards to enable the centering sleeve 302 to withdraw from the tail end of the steel pipe 9 while the second electrode 304 moves to the tail end of the steel pipe 9, and then the second electrode 304 is closed to finish welding operation of the tail end of the steel pipe 9 and the steel wire. The chuck 103 is well known in the art.

As shown in fig. 2, in this embodiment, the rotary transmission assembly of the wire clamping rotary mechanism 1 includes a rotary driving pulley, a rotary driving belt 102 and a rotary driven pulley, wherein the rotary driving pulley is coaxially and fixedly connected with the chuck 103 and is driven to rotate by the rotary motor 101, the rotary driving pulley is connected with the rotary driven pulley by the rotary driving belt 102, and the rotary driven pulley is coaxially and fixedly connected with the rotary shaft 104.

As shown in fig. 2, in this embodiment, the supporting wheel transmission assembly includes a supporting driving wheel and a supporting driving belt 105, the supporting driving wheel is disposed on the rotating shaft 104, and the supporting driving wheel is connected to a corresponding supporting wheel 106 through the supporting driving belt 105.

As shown in fig. 2, the welding bracket 7 is provided with a detection support 702, and the detection support 702 is provided with an angle sensor 107 for detecting the rotation angle of the steel pipe 9 in real time, in this embodiment, the end of the steel pipe 9 is provided with an end plug with a notch, and the angle sensor 107 can accurately detect the notch angle of the end plug, so that the welding fixing position of the steel wire and the end plug can be accurately determined. The angle sensor 107 is well known in the art and is a commercially available product.

As shown in fig. 3 to 5, the first welding assembly 2 includes a first slide 201, a first driving assembly, a first steel tube clamping cylinder 207, a first electrode clamping cylinder 208 and a first spring 209, wherein the first slide 201 is slidably connected with the welding bracket 7, a first slide rail 703 is provided on the welding bracket 7, a first slide block 206 matched with the first slide rail 703 is provided on the lower side of the first slide 201, the first steel tube clamping cylinder 207, the first electrode clamping cylinder 208 and the first spring 209 are all provided on the first slide 201, wherein as shown in fig. 5, an openable clamping jaw 2071 is provided at the upper end of the first steel tube clamping cylinder 207, the clamping jaw 2071 drives the head end of the clamping steel tube 9 through the first steel tube clamping cylinder 207 during welding, therefore, before the steel tube 9 is welded with the steel wire, the steel tube 9 is fixed firmly, the position of the steel tube 9 is ensured, in addition, as shown in fig. 3 and 5, one end of the first spring 209 is fixedly arranged on the first sliding seat 201, the other end of the first spring is provided with an electrode seat A, the end part of the cylinder rod of the first electrode clamping cylinder 208 is provided with an electrode seat B, two first electrodes 210 are respectively arranged on the corresponding electrode seats, and the first electrode clamping cylinder 208 drives the electrode seat B to move during welding, so that the corresponding first electrode 210 is matched with the other first electrode 210 to clamp the steel tube 9.

As shown in fig. 3 to 5, in this embodiment, the first driving assembly includes a first motor 202, a first driving pulley, a first driving belt 203, a first driven pulley, a first lead screw 205 and a first nut, where the first motor 202 is disposed on the welding bracket 7, the first driving pulley is mounted on an output shaft of the first motor 202, a first end seat 204 is disposed on the welding bracket 7, the first driven pulley is disposed in the first end seat 204, and the first driving pulley is connected with the first driven pulley through the first driving belt 203, the first driven pulley is coaxially and fixedly connected with the first lead screw 205, and the first nut is sleeved on the first lead screw 205 and fixedly mounted on the first slide seat 201. The first motor 202 transmits torque through the first transmission belt 203 to drive the first screw rod 205 to rotate, and the first screw rod 205 rotates to drive the first nut to move and drive the first sliding seat 201 to move.

As shown in fig. 11 to 13, the second welding assembly 3 includes a second slide, a second driving assembly, a second electrode clamping cylinder 305 and a second spring 306, where the second slide is slidably connected with the welding support 7, a slide block matched with the first slide rail 703 is disposed on the lower side of the second slide, the centering sleeve 302, the second electrode clamping cylinder 305 and the second spring 306 are all disposed on the second slide, and the centering sleeve 302 is disposed on a side of the second slide far away from the steel tube 9, one end of the second spring 306 is fixedly disposed on the second slide, the other end is provided with an electrode seat C, the end of the cylinder rod of the second electrode clamping cylinder 305 is provided with an electrode seat D, two second electrodes 304 are respectively mounted on the corresponding electrode seats, during welding, the second electrode clamping cylinder 305 drives the electrode seat D to move, so that the corresponding second electrode 304 cooperates with the other second electrode 304 to clamp the steel tube 9, the second electrode clamping cylinder 305 and the second spring 306 have the same action as the first electrode clamping cylinder 208 and the first spring 209, so as to ensure that the clamping force is always equal to the spring force, and the consistent welding force of the two electrodes and the welding force is ensured to the weld joint of the two steel tube 9.

As shown in fig. 11 to 13, in this embodiment, the second driving assembly includes a second motor 301, a second screw 303, and a second nut, where the second screw 303 is driven to rotate by the second motor 301, and the second nut is sleeved on the second screw 303 and fixedly connected to the second slide.

As shown in fig. 6-7, the wire feeding mechanism 5 includes a driving slide 504 and a moving driving assembly, where, as shown in fig. 1, the wire feeding mechanism 5 is disposed on a feeding support 8, and the driving slide 504 is slidably connected with the feeding support 8, a second sliding rail is disposed on the feeding support 8, a driving slide 5041 matched with the second sliding rail is disposed at the lower side of the driving slide 504, a wire feeding machine 509 is disposed on the driving slide 504, in addition, a cantilever-shaped mounting seat 508 is disposed at the upper end of the driving slide 504, and a pinch roller cylinder 506, a second steel pipe clamping cylinder 507, a cylinder driving device and an output port of the wire feeding machine 509 are disposed on the mounting seat 508, as shown in fig. 6, a pinch roller 505 is disposed at the end of the cylinder rod of the pinch roller cylinder 506, and the pinch roller 505 is disposed at the upper side of the output port of the wire feeding machine 509, when the steel pipe 9 is wound, the pinch roller 505 is used for pressing the steel pipe 9 on the supporting wheel 106, the second steel pipe clamping cylinder 507 is driven to move by the cylinder driving device to vertically extend or retract, the lower end of the second steel pipe clamping cylinder 507 is provided with a pickup clamping jaw 5071 which can be opened and closed, when the welding of the head end of the steel pipe 9 and the steel wire is completed, the second steel pipe clamping cylinder 507 is driven to extend by the cylinder driving device, the pickup clamping jaw 5071 is closed to clamp the steel pipe 9, then the whole movement of the steel wire unwinding mechanism 5 is used for conveying the head end of the steel pipe 9 into the chuck 103 to clamp and fix, then the pickup clamping jaw 5071 is used for unwinding the steel pipe 9 and retracting, when the steel pipe 9 starts to rotate, the wire unwinding machine 509 starts to perform wire winding operation of the steel pipe 9 while the steel wire unwinding mechanism 5 moves along the length direction of the welding bracket 7, the moving speed and the wire releasing speed of the wire releasing mechanism 5 are controlled by the equipment system to be matched with the rotating speed of the steel pipe 9 so as to ensure the wire winding quality, and the second steel pipe clamping cylinder 507 is always in a retracted state during wire winding so as to avoid influencing the wire winding operation. In this embodiment, the cylinder driving device may be a linear output device such as a cylinder, a linear push rod, etc., and the wire feeder 509 is a commercially available product and is well known in the art.

As shown in fig. 6 to 7, in this embodiment, the moving driving assembly includes a driving motor 501, a driving belt wheel, a driving belt 502, a driving driven belt wheel, a driving screw 503 and a driving nut, where the driving motor 501 is disposed on the wire-feeding support 8, the driving belt wheel is mounted on an output shaft of the driving motor 501, the driving driven belt wheel is disposed on the wire-feeding support 8, and the driving belt wheel is connected with the driving driven belt wheel through the driving belt 502, the driving driven belt wheel is fixedly connected with the driving screw 503 coaxially, and the driving nut is sleeved on the driving screw 503 and fixedly connected with the driving slide seat 504.

As shown in fig. 8 to 10, the auxiliary straightening mechanism 4 includes an auxiliary sliding seat 404, an auxiliary driving component, a clamp 405, a straightening clamping cylinder 406, a first extending cylinder and a second extending cylinder, as shown in fig. 1, the auxiliary straightening mechanism 4 is arranged on a straightening support 6, a third sliding rail 601 is arranged on the straightening support 6, an auxiliary driving sliding block 4041 is arranged on the lower side of the auxiliary sliding seat 404 and is matched with the third sliding rail 601, the straightening clamping cylinder 406 and the clamp 405 are both arranged on the auxiliary sliding seat 404, as shown in fig. 10, two straightening tools 4061 are arranged on the straightening clamping cylinder 406, a steel pipe 9 passes through the two straightening tools 4061, the two straightening tools 4061 drive a closed clamping steel pipe 9 and a steel wire through the straightening clamping cylinder 406, the straightening clamping cylinder 406 drives the closed clamping steel pipe 9 to extend or retract through the first extending cylinder, and the clamp 405 drives the closed clamping steel pipe 9 to extend or retract through the second extending cylinder. Both the corrective tool 4061 and the clamp 405 are well known in the art, wherein the clamp 405 may be a pneumatic clamp.

As shown in fig. 8 to 10, in this embodiment, the auxiliary driving assembly includes an auxiliary driving motor 401, an auxiliary driving pulley, an auxiliary driving belt 402, an auxiliary driven pulley, an auxiliary driving screw 403 and an auxiliary driving nut, where the auxiliary driving motor 401 is disposed on the correction support 6, the auxiliary driving pulley is mounted on an output shaft of the auxiliary driving motor 401, a second end seat 407 is disposed on the correction support 6, the auxiliary driven pulley is disposed in the second end seat 407, and the auxiliary driving pulley is connected with the auxiliary driven pulley through the auxiliary driving belt 402, the auxiliary driven pulley is fixedly connected with the auxiliary driving screw 403 coaxially, and the auxiliary driving nut is sleeved on the auxiliary driving screw 403 and fixedly connected with the auxiliary sliding seat 404.

The first welding assembly 2 and the second welding assembly 3 are provided with power supply devices for supplying power to the first electrode 210 and the second electrode 304 to achieve welding, which is known in the art.

The working principle of the invention is as follows:

when the invention works, the steel tube 9 is supported by each supporting wheel 106, then the auxiliary straightening mechanism 4 and the steel wire unwinding mechanism 5 are moved to one end of the welding bracket 7 provided with the first welding component 2, after the steel wire released by the steel wire unwinding mechanism 5 is aligned with the head end of the steel tube 9 (in the embodiment, the head end of the steel tube 9 is provided with an end plug with a gap into which the head end of the steel wire is clamped), the straightening tool 4061 of the auxiliary straightening mechanism 4 stretches out and closes to clamp the steel wire with the head end of the steel tube 9 in an auxiliary way, then the first welding component 2 is moved to the head end of the steel tube 9, the clamping jaw 2071 is driven by the first steel tube clamping cylinder 207 to fix the head end of the steel tube 9, then the first electrode 210 is closed to weld the steel wire end with the head end of the steel tube 9, then the pick-up clamping jaw 5071 in the steel wire unwinding mechanism 5 clamps the steel tube 9 and sends the head end of the steel tube 9 into the chuck 103 of the steel wire clamping rotating mechanism 1 to be clamped and fixed, the second welding assembly 3 moves forward to enable the centering sleeve 302 to be sleeved on the other end of the steel pipe 9, then the rotating motor 101 in the steel wire clamping rotating mechanism 1 starts to drive the chuck 103 and the rotating shaft 104 to rotate simultaneously, so that the steel pipe 9 integrally rotates synchronously, meanwhile, the steel wire releasing mechanism 5 moves along the length direction of the welding bracket 7 to release the steel wire, the steel wire is wound on the steel pipe 9 along with the rotation of the steel pipe 9, when the steel wire winds to the tail end of the steel pipe 9, the auxiliary straightening mechanism 4 also moves to the tail end of the steel pipe 9 and stretches out of the closed auxiliary clamping steel wire and the tail end of the steel pipe 9 by utilizing the straightening tool 4061, the clamp 405 stretches out of the sheared steel wire, the steel wire releasing mechanism 5 can move away from the tail end of the steel pipe 9 at the moment, then the second welding assembly 3 moves backward to enable the centering sleeve 302 to withdraw from the tail end of the steel pipe 9, and simultaneously, the second electrode 304 is moved to the tail end of the steel pipe 9, and then the second electrode 304 is closed to finish the welding operation of the tail end of the steel pipe 9 and the steel wire.

Claims (10)

1. An elongated tube wire-wrapping welding pressure resistance welding device is characterized in that: comprises a steel wire clamping rotating mechanism (1), a first welding component (2), a second welding component (3), a steel wire unwinding mechanism (5) and an auxiliary correcting mechanism (4), wherein the first welding component (2) and the second welding component (3) are movably arranged on a welding bracket (7), the steel wire clamping rotating mechanism (1) is arranged at the end part of the welding bracket (7) close to the first welding component (2), the steel wire unwinding mechanism (5) is movably arranged at one side of the welding bracket (7), the auxiliary correcting mechanism (4) is movably arranged at the other side of the welding bracket (7), a plurality of supporting wheel seats (701) are arranged on the welding bracket (7), a supporting wheel transmission component and a supporting wheel (106) are arranged on the supporting wheel seats (701), the steel wire clamping rotating mechanism (1) comprises a rotating motor (101), a rotating transmission component, a rotating shaft (104) and a chuck (103), the rotating shaft (104) are driven to synchronously rotate through the rotating motor (101), the rotating motor (106) is driven through the rotating transmission component, the supporting wheel (106) is driven to rotate through the rotating transmission component, the rotating wheel (104) is driven by the rotating shaft (104), the rotating wheel (104) is driven by the rotating wheel (104) through the rotating transmission component, the rotating electrode (210) to be provided with a first welding component, the second welding assembly (3) is provided with a centering sleeve (302) and a second electrode (304), the steel wire unwinding mechanism (5) is provided with a pickup clamping jaw (5071), the auxiliary straightening mechanism (4) is provided with a straightening tool (4061), the steel wire is clamped with the head end of the steel tube (9) firstly and welded through the first electrode (210), then the head end of the steel tube (9) is clamped and fed into the chuck (103) for fixing through the pickup clamping jaw (5071), the centering sleeve (302) is sleeved at the tail end of the steel tube (9) along with the movement of the second welding assembly (3), then the steel tube (9) is driven to rotate through the chuck (103) and the supporting wheel (106), the steel wire unwinding mechanism (5) releases the steel wire and is moved to the tail end of the steel tube (9) by the steel tube (9), the centering sleeve (302) is moved to exit the tail end of the steel tube (9) along with the movement of the second welding assembly (3), and the second electrode (304) is moved to the tail end of the steel tube (9), and then the steel wire is clamped with the tail end of the steel tube (9) through the straightening tool (4061) and welded through the second electrode (106).

2. An elongated tube wire-wrapping welding press resistance welding apparatus according to claim 1, wherein: the rotary transmission assembly of the steel wire clamping rotary mechanism (1) comprises a rotary driving belt wheel, a rotary transmission belt (102) and a rotary driven belt wheel, wherein the rotary driving belt wheel is fixedly connected with the chuck (103) coaxially and driven to rotate by the rotary motor (101), the rotary driving belt wheel is connected with the rotary driven belt wheel by the rotary transmission belt (102), and the rotary driven belt wheel is fixedly connected with the rotary shaft (104) coaxially; the supporting wheel transmission assembly comprises a supporting driving wheel and a supporting transmission belt (105), wherein the supporting driving wheel is arranged on the rotating shaft (104), and the supporting driving wheel is connected with a corresponding supporting wheel (106) through the supporting transmission belt (105).

3. An elongated tube wire-wrapping welding press resistance welding apparatus according to claim 1, wherein: the welding device comprises a welding bracket (7), and is characterized in that the welding bracket (7) is connected with the welding bracket in a sliding mode and is driven to move by the first driving assembly, the welding bracket (201), a first driving assembly, a first steel tube clamping cylinder (207), a first electrode clamping cylinder (208) and a first spring (209) are arranged on the welding bracket (201), a clamping jaw (2071) capable of being opened and closed is arranged at the upper end of the first steel tube clamping cylinder (207), one end of the first spring (209) is fixedly arranged on the welding bracket (201), and a first electrode (210) is arranged at the other end of the first spring (209) and at the end of a cylinder rod of the first electrode clamping cylinder (208).

4. An elongated tubular wire-wrapping welding press resistance welding apparatus according to claim 3, wherein: the first driving assembly comprises a first motor (202), a first driving belt wheel, a first transmission belt (203), a first driven belt wheel, a first lead screw (205) and a first screw nut, wherein the first motor (202), the first driven belt wheel and the first lead screw (205) are all arranged on the welding bracket (7), the first driving belt wheel is arranged on an output shaft of the first motor (202), the first driving belt wheel is connected with the first driven belt wheel through the first transmission belt (203), the first driven belt wheel is fixedly connected with the first lead screw (205) in a coaxial mode, and the first screw nut is sleeved on the first lead screw (205) and fixedly connected with the first sliding seat (201).

5. An elongated tube wire-wrapping welding press resistance welding apparatus according to claim 1, wherein: the second welding assembly (3) comprises a second sliding seat, a second driving assembly, a second electrode clamping cylinder (305) and a second spring (306), wherein the second sliding seat is in sliding connection with the welding support (7) and is driven to move through the second driving assembly, the centering sleeve (302), the second electrode clamping cylinder (305) and the second spring (306) are all arranged on the second sliding seat, one end of the second spring (306) is fixedly arranged on the second sliding seat, the other end of the second spring (306) and the end part of a cylinder rod of the second electrode clamping cylinder (305) are respectively provided with a second electrode (304), and the centering sleeve (302) is coaxial with the chuck (103) and is arranged on one side, far away from the first welding assembly (2), of the second electrode (304).

6. An elongated tubular wire-wrapping welding press resistance welding apparatus as recited in claim 5, wherein: the second driving assembly comprises a second motor (301), a second lead screw (303) and a second screw nut, wherein the second lead screw (303) is driven to rotate through the second motor (301), and the second screw nut is sleeved on the second lead screw (303) and fixedly connected with the second sliding seat.

7. An elongated tube wire-wrapping welding press resistance welding apparatus according to claim 1, wherein: wire is put silk mechanism (5) including drive slide (504) and removal drive assembly, wherein wire is put silk mechanism (5) and is located on a silk support (8), just drive slide (504) with silk support (8) sliding connection and pass through the removal drive assembly drive removes, be equipped with on drive slide (504) and put silk machine (509), and drive slide (504) upper end is equipped with mount pad (508), be equipped with pinch roller cylinder (506), second steel pipe clamp cylinder (507), cylinder drive arrangement and the delivery outlet of putting silk machine (509) on mount pad (508), the cylinder rod end of pinch roller cylinder (506) is equipped with pinch roller (505), just pinch roller (505) are located put silk machine (509) delivery outlet upside, second steel pipe clamp cylinder (507) are passed through cylinder drive arrangement drive removes, and second steel pipe clamp cylinder (507) lower extreme is equipped with clamping jaw (5071) that can open and close.

8. The elongated tube wire-wrapping welding press resistance welding device of claim 7, wherein: the movable driving assembly comprises a driving motor (501), a driving belt wheel, a driving transmission belt (502), a driving driven belt wheel, a driving screw (503) and a driving screw, wherein the driving motor (501), the driving driven belt wheel and the driving screw (503) are all arranged on the wire-releasing support (8), the driving belt wheel is arranged on an output shaft of the driving motor (501), the driving belt wheel is connected with the driving driven belt wheel through the driving transmission belt (502), the driving driven belt wheel is fixedly connected with the driving screw (503) coaxially, and the driving screw is sleeved on the driving screw (503) and fixedly connected with the driving sliding seat (504).

9. An elongated tube wire-wrapping welding press resistance welding apparatus according to claim 1, wherein: the auxiliary correction mechanism (4) comprises an auxiliary sliding seat (404), an auxiliary driving assembly, a correction clamping cylinder (406), a clamp (405), a first stretching cylinder and a second stretching cylinder, wherein the auxiliary correction mechanism (4) is arranged on a correction support (6), the auxiliary sliding seat (404) is in sliding connection with the correction support (6) and is driven to move by the auxiliary driving assembly, the correction clamping cylinder (406), the clamp (405), the first stretching cylinder and the second stretching cylinder are all arranged on the auxiliary sliding seat (404), and a stretchable correction tool (4061) is arranged on the correction clamping cylinder (406), the correction clamping cylinder (406) is driven to move by the first stretching cylinder, and the clamp (405) is driven to move by the second stretching cylinder.

10. The elongated tube wire-wrapping welding press resistance welding device according to claim 9, wherein: the auxiliary driving assembly comprises an auxiliary driving motor (401), an auxiliary driving belt wheel, an auxiliary driving transmission belt (402), an auxiliary driven belt wheel, an auxiliary driving screw (403) and an auxiliary driving screw nut, wherein the auxiliary driving motor (401), the auxiliary driven belt wheel and the auxiliary driving screw nut (403) are all arranged on the correction support (6), the auxiliary driving belt wheel is arranged on an output shaft of the auxiliary driving motor (401), the auxiliary driving belt wheel is connected with the auxiliary driven belt wheel through the auxiliary driving transmission belt (402), the auxiliary driven belt wheel is fixedly connected with the auxiliary driving screw nut (403) in a coaxial mode, and the auxiliary driving screw nut is sleeved on the auxiliary driving screw nut (403) and fixedly connected with the auxiliary sliding seat (404).

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