A fully automatic circle welding machine
The guide groove and movable clamping mechanism of the fully automatic loop welding machine solve the problem of low welding precision of small diameter iron wires, and achieve efficient and accurate wire loop welding.
Patent Information
- Application Number
- CN202210922279.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-02
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2042-08-02
AI Technical Summary
Existing loop welding machines are not suitable for processing small diameter iron wires, and the welding accuracy is not high.
A fully automatic loop welding machine was designed, which included a straightening mechanism, a wire feeding mechanism, a looping mechanism, a cutting mechanism, a movable clamping mechanism and a welding mechanism. The wire was bent into a loop through a guide groove, and combined with the movable clamping and welding positioning components, precise welding of small-diameter wires was achieved.
It improves the production efficiency and welding accuracy of small-diameter wire rings, meets customers' product needs, and ensures welding quality.
Smart Images
Figure CN116038342B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a full-automatic loop welding machine. Background Art
[0002] Wire loops are a common component in household appliances. They are made by rolling a piece of wire into a ring, cutting it, and then welding it together. These loops typically have a diameter of only 0.6 to 0.8 mm, and current looping machines are unable to process wires of this diameter. Wire looping requires two separate steps, making the process complex and inefficient.
[0003] Patent No.: CN201811436149.9 discloses an automatic wire looping and welding machine, including a conveying mechanism for continuously conveying iron wire; a coiling mechanism for coiling the iron wire into a circular structure; a clamping mechanism for clamping the two ends of the iron ring; and a cutting mechanism for cutting the iron ring. The conveying mechanism and the coiling mechanism are sequentially arranged on a vertical plate, and the clamping mechanism includes a support plate, a mounting seat, an upper conductive clamping assembly, a lower conductive clamping assembly, a horizontal pushing mechanism and an up and down pushing mechanism. The up and down pushing mechanism pushes the upper conductive clamping assembly up and down to make the two ends of the iron ring contact and weld. The circling method in this patent is to convey the iron wire through the conveying mechanism. When the end of the iron wire passes through the coiling roller, the lower support roller is used as a fulcrum to guide the iron wire downward, so that the iron wire forms an arc shape, and the coiling roller and the support roller cooperate to perform the circling process. This circling method is not suitable for circling the iron wire with a small diameter, and the clamping and positioning method of the welding mechanism of this patent is relatively simple. During welding, for the iron wire with a very small diameter, through the downward movement of the upper conductive clamping component, it is difficult to ensure that the two ends of the iron wire are in contact unless the precision is very high. There is a slight deviation in the displacement of the upper and lower conductive clamping components, which leads to welding failure. Therefore, this circling welding machine is not suitable for circling welding of iron wire with a small diameter. Summary of the Invention
[0004] In view of the above problems, the present invention discloses a fully automatic loop welding machine, which solves the problem that the loop welding machine in the prior art is not suitable for processing small diameter iron wires.
[0005] The specific technical solutions are as follows:
[0006] The cam is provided with a plurality of guide rails, and the guide rails are provided with a plurality of guide rails, and the guide rails are provided with a plurality of guide rails, and the guide rails are provided with a plurality of guide rails.
[0007] The welding mechanism includes a welding base, a lifting guide plate, a driving cylinder, a lower electrode arm, an upper electrode arm, and a welding positioning assembly. The welding base is arranged on a support table, and the lower electrode arm is horizontally arranged on the welding base. One end of the lower electrode arm extends to the processing opening of the longitudinal vertical plate. The lifting guide plate is longitudinally arranged at one end of the welding base, and a lifting seat is longitudinally slidingly arranged on the lifting guide plate. The driving cylinder is arranged on the lifting guide plate and drives the lifting seat to rise and fall on the lifting guide plate. The upper electrode arm is horizontally arranged at the bottom of one end of the lifting seat. The upper electrode arm is located directly above the lower electrode arm, and one end of the upper electrode arm and the lower electrode arm are both provided with a positioning card. The positioning blocks are provided with positioning grooves for accommodating wire rings on one side close to the horizontal vertical plate, so that when the movable clamping assembly clamps and resets the wire ring, the two open ends of the wire ring are respectively inserted into the positioning grooves of the two positioning blocks; the welding positioning assembly is arranged on one side of the upper electrode arm and the lower electrode arm, and a positioning pressure rod is horizontally movably arranged in the welding positioning assembly, and a positioning protrusion adapted to the positioning groove is provided at one end of the positioning pressure rod, so that the positioning pressure rod presses and fixes the wire ring in the positioning groove through the positioning protrusion, and finally, under the push of the driving cylinder, the lifting seat drives the upper electrode arm downward and welds the two ends of the wire ring by butt welding.
[0008] Furthermore, the welding positioning assembly includes a sliding base, a sliding cylinder, a lifting support plate, a fixed support, a movable support, an upper clamping arm, and a lower clamping arm. The bottom of the sliding base is horizontally slidably arranged on the bracket table through a slide rail and is located on one side of the welding base, and one end of the sliding base is driven by a sliding cylinder installed on the support frame. The fixed support is fixedly arranged on the sliding base, and the lower clamping arm is horizontally slidably arranged in the fixed support, and the lower clamping arm is horizontally displaced by the drive of a servo cylinder installed on one side of the fixed support. The lifting support plate is longitudinally arranged at one end of the sliding base, and the lifting support plate Located on one side of the lifting guide plate, the movable support is longitudinally slidably arranged on the lifting support plate, and the upper clamping arm is horizontally slidably arranged in the movable support, and the upper clamping arm is horizontally displaced by the drive of the servo cylinder 2 installed on one side of the movable support, and the positioning pressure rod is provided on the side of the upper clamping arm and the lower clamping arm close to the positioning block, so that the two positioning pressure rods are respectively translated under the drive of the servo cylinder 1 and the servo cylinder 2, wherein one side of the movable support is horizontally slidably connected with one side of the lifting seat, so that the lifting seat drives the movable support to rise and fall together when lifting, and realizes that the upper clamping arm descends together with the upper electrode arm.
[0009] Furthermore, the wire feeding mechanism includes a mounting plate, a driving motor, a wire guide roller, a wire guide frame and a wire threading tube, the mounting plate being vertically arranged on the transverse vertical plate, a mounting bracket being horizontally arranged on the right side one end of the mounting plate, the straightening mechanism being arranged on the mounting bracket, a wire guide seat being arranged in the middle of the mounting plate, the wire guide frame being horizontally penetrated by the wire guide seat, and a channel for conveying the iron wire being horizontally penetrated by the wire guide frame, a group of wire guide rollers being respectively provided at the left and right ends of the wire guide frame, the wire guide rollers in each group being distributed up and down and being closely arranged, the wire guide rollers being rotatably arranged on the mounting plate, and the wire guide rollers being driven by a driving motor installed at the rear end of the transverse vertical plate, the circumferential surface of the wire guide roller being provided with a circle for accommodating the iron wire guide groove, so that the two groups of wire guide rollers drive the iron wire to be conveyed forward, a wire threading tube being horizontally arranged at each end of the mounting plate through the support, and one end of the wire threading tube extending between the upper and lower wire guide rollers, and the other ends of the two wire threading tubes extending to the looping mechanism and the straightening mechanism respectively.
[0010] Furthermore, the looping mechanism includes a wire feeding tube, a positioning seat, a wire guide column and a size adjustment mechanism. The wire feeding tube is horizontally arranged on the horizontal vertical plate through a support. The wire guide column is arranged at the left end of the wire feeding tube. The wire guide column is arranged on the horizontal vertical plate through the size adjustment mechanism. The wire guide column is longitudinally arranged, and the bottom of the wire guide column is arranged as an inclined surface. A guide groove is provided at the bottom end of the wire guide column. The guide groove is arranged in an arc-shaped structure. Both ends of the guide groove extend to the edge of the wire guide column, and the directions of the two ends of the guide groove are slightly inclined to the conveying direction of the wire. The position of the inlet end of the guide groove corresponds to the outlet position of the wire feeding tube. The iron wire output from the wire feeding tube enters the guide groove and is bent. The positioning seat is fixedly arranged on one side of the bracket platform close to the horizontal vertical plate. A positioning block and a fixing block are provided at one end of the top of the positioning seat close to the wire guide column. The positioning block is located near the outlet end of the guide groove, and the bottom of the positioning block is flush with the bottom of the fixing block. The gap between the positioning block and the fixing block forms a through opening for the iron wire to pass through. The position of the through opening corresponds to the position of the outlet end of the guide groove of the wire guide column, so that the iron wire output from the wire feeding tube is bent through the guide groove and then passes downward through the through opening and extends in a ring shape, and the front end of the iron wire is positioned against the positioning block.
[0011] Furthermore, the size adjustment mechanism includes a fixed seat, a sliding seat, a movable seat, and a clamping seat. The fixed seat is fixedly set on the horizontal vertical plate, and the sliding seat is longitudinally slidably set on the fixed seat. A screw is provided on the top of the sliding seat, and the screw passes through the fixed seat upward and cooperates with a nut to realize the positioning of the sliding seat. The movable seat is horizontally slidably set on the sliding seat, and a waist-shaped positioning hole is horizontally opened on the movable seat. A positioning bolt is horizontally passed through the waist-shaped positioning hole, and the positioning bolt is fixedly connected to the sliding seat, and the positioning bolt cooperates with the nut to realize the positioning of the movable seat. The clamping seat is provided at one end of the movable seat, and the guide wire column is longitudinally clamped on the clamping seat.
[0012] Furthermore, the cutting mechanism includes a slide rail seat, a sliding block, a cutting cylinder, and a cutter. The slide rail seat is arranged on the bracket platform and is located on a side close to the horizontal vertical plate. The sliding block is set on the slide rail seat through the sliding of the slide rail. One end of the sliding block is driven by the piston rod of the cutting cylinder. The sliding direction of the sliding block is perpendicular to the conveying direction of the wire. A mounting block is provided on the side of the sliding block close to the wire feeding pipe. The mounting block is located at the rear end of the positioning seat. The cutter is horizontally arranged on one end of the mounting block close to the positioning seat. The top of the cutter is fitted with the bottom of the fixed block, and one end of the cutting edge of the cutter extends to one side of the through-port, so that the cutting cylinder pushes the sliding block to slide forward, so that the cutter moves along the bottom of the fixed block toward the positioning block, thereby cutting the annular wire in the through-port.
[0013] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.
[0014] Furthermore, the upper clamping assembly and the lower clamping assembly both include a mounting support plate, a clamping cylinder, and a clamping assembly, the front end of the mounting support plate is fixed to the rear end of the displacement support by a fastener, the clamping cylinder is horizontally arranged on the rear end of the mounting support plate, and a push block is provided at one end of the piston rod of the clamping cylinder, and the two sides of the push block are gradually narrowed, and the clamping assembly is hingedly arranged at the front end of the mounting support plate, and the clamping assembly includes two symmetrically arranged clamps and a pin shaft arranged in the middle of the two clamps, and the pin shaft is rotatably arranged on the mounting support plate, a spring is provided between one end of the two clamps, and the spring supports the two clamps, and the other ends of the two clamps are respectively arranged on both sides of the push block, and the push block is pushed by the clamping cylinder so that the two sides of the push block support the two clamps, so that the clamping assembly can be opened and closed on the mounting support plate, thereby clamping the wire ring in the looping mechanism.
[0015] Furthermore, the straightening mechanism includes two straightening mechanisms, one straightening mechanism is arranged horizontally, and the other straightening mechanism is arranged vertically.
[0016] Furthermore, the looping mechanism also includes a lower push-thread device, which includes a lifting cylinder and a push-thread plate. The lifting cylinder is fixedly arranged on the horizontal vertical plate and is located below the wire feeding pipe. The push-thread plate is horizontally arranged at the top end of the piston rod of the lifting cylinder, and the push-thread plate supports the lower end of the wire ring.
[0017] The beneficial effects of the present invention are embodied in:
[0018] (1) The looping mechanism of the present invention uses the guide groove of the wire guide column to bend and guide the conveyed iron wire, so that the conveyed iron wire is bent downward under the guidance of the guide groove and is wound in a ring shape and extends to the positioning block. It is then positioned in conjunction with the movable clamping mechanism, and then the cutting mechanism is used to cut the ring-shaped iron wire. This allows the iron wire to be quickly formed, improves the production efficiency of the wire ring, and can loop the iron wire with a diameter of up to 0.6 mm, achieving a breakthrough in manufacturing technology and meeting customer product needs.
[0019] (2) The welding mechanism of the present invention clamps the wire ring through the movable clamping mechanism and drives it to the positioning groove on the electrode arm, and then cooperates with the welding positioning component to effectively and accurately position the two ends of the wire ring in the positioning groove, thereby ensuring that the two ends of the wire ring can be accurately welded during welding, greatly improving the welding accuracy, ensuring the production quality, and meeting the welding requirements of small-diameter wire rings.
[0020] (3) The overall structure of the welding positioning assembly in the present invention is compact and reasonably designed. A horizontal sliding connection is adopted between the movable support and the lifting seat, so that the movable support can move horizontally normally, and when the lifting seat is lifted or lowered, the movable support can be driven to lift or lower together. Therefore, when the upper electrode arm descends for welding, the positioning protrusion can always position the wire ring in the positioning groove, thereby ensuring the positioning effect and the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional diagram in the present invention.
[0022] Figure 2 It is a schematic structural diagram of the horizontal vertical plate in the present invention.
[0023] Figure 3 It is a schematic structural diagram of the longitudinal vertical plate in the present invention.
[0024] Figure 4 It is the main view on the longitudinal vertical plate of the present invention.
[0025] Figure 5 It is a structural schematic diagram of the size adjustment mechanism in the present invention.
[0026] Figure 6 for Figure 2 Enlarged schematic diagram of point A in the middle.
[0027] Figure 7 It is a three-dimensional diagram of the guide wire column in the present invention.
[0028] Figure 8 It is a cross-sectional view of the guide wire column in the present invention.
[0029] Figure 9 It is a side view of the cutting mechanism in the present invention.
[0030] Figure 10 It is a top view of the cutting mechanism in the present invention.
[0031] Figure 11 It is a schematic diagram of the structure between the upper clamping assembly and the lower clamping assembly in the present invention.
[0032] Figure 12 It is a side view of the welding mechanism in the present invention.
[0033] Figure 13 It is a schematic diagram of the back structure of the welding mechanism in the present invention.
[0034] Figure 14 It is a front structural schematic diagram of the welding mechanism in the present invention.
[0035] Figure 15 for Figure 14 Enlarged schematic diagram of point B in the middle.
[0036] Frame 1, support platform 11, horizontal vertical plate 12, vertical vertical plate 13, processing port 131;
[0037] Straightening mechanism 2, pressing wheel 21, straightening wheel 22
[0038] Wire feeding mechanism 3, mounting plate 31, mounting bracket 311, wire break detector 312, drive motor 32, wire guide roller 33, wire guide rack 34, wire guide seat 341, wire threading tube 35;
[0039] Looping mechanism 4, wire feeding tube 41, positioning seat 42, fixed block 421, positioning block 422, through port 423, wire guide post 43, guide groove 431, fixed seat 44, sliding seat 45, screw 451, movable seat 46, waist-shaped positioning hole 461, positioning bolt 462, clamping seat 47, lifting cylinder 48, and top screw plate 49;
[0040] Cutting mechanism 5, slide rail seat 51, sliding block 52, mounting block 53, cutting cylinder 54, cutter 55;
[0041] Movable clamping mechanism 6, displacement slide 61, displacement cylinder 62, displacement support 63, upper clamping assembly 64, clamp assembly 641, clamp 642, pin 643, spring 644, clamping cylinder 645, push block 646, mounting support plate 647, lower clamping assembly 65;
[0042] Welding mechanism 7, welding base 71, lifting guide plate 72, driving cylinder 73, lower electrode arm 74, upper electrode arm 75, lifting seat 76, positioning block 77, positioning groove 771
[0043] Welding positioning assembly 8, sliding base 81, sliding cylinder 82, lifting support plate 83, fixed support 84, servo cylinder 1 841, movable support 85, servo cylinder 2 851, upper clamping arm 86, lower clamping arm 87, positioning pressure rod 88, positioning protrusion 881. DETAILED DESCRIPTION
[0044] To make the technical solution of the present invention more clear and specific, the present invention is further described below with reference to the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the present invention and any solution derived from conventional reasoning shall fall within the scope of protection of the present invention. The fixed connection and fixed setting mentioned in the present invention are all common connection methods in the mechanical field, including welding, bolt and nut connection, and screw connection.
[0045] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0046] like Figure 1-15 As shown, a fully automatic loop welding machine includes a frame 1, a straightening mechanism 2, a wire feeding mechanism 3, a looping mechanism 4, a cutting mechanism 5, a movable clamping mechanism 6, and a welding mechanism 7. The frame 1 includes a support table 11, a horizontal vertical plate 12 and a longitudinal vertical plate 13. The horizontal vertical plate 12 and the longitudinal vertical plate 13 are arranged on one side of the support table 11, and the angle between the horizontal vertical plate 12 and the longitudinal vertical plate 13 is 90 degrees. The straightening mechanism 2, the wire feeding mechanism 3 and the looping mechanism 4 are arranged on the horizontal vertical plate 12 from right to left. The straightening mechanism 2 is used to straighten the unwound wire, and the wire feeding mechanism 3 will straighten the straightened wire. The iron wire is transported to the looping mechanism 4, which is used to bend the iron wire into a ring shape; a processing port 131 is provided on the longitudinal vertical plate 13, and the movable clamping mechanism 6 is movably arranged on the longitudinal vertical plate 13, and the movable clamping mechanism 6 is used to clamp the iron wire ring formed in the looping mechanism 4, so that the iron wire ring is cut off by the cutting mechanism 5 installed on the processing table, and then the movable clamping mechanism 6 drives the cut iron wire ring to move and place it on the welding mechanism 7. The welding mechanism 7 is arranged on the support table 11, and one end of the welding mechanism 7 extends to the processing port 131 and welds the two ends of the iron wire ring to form a ring.
[0047] The straightening mechanism 2 includes two straightening mechanisms, one arranged horizontally and the other arranged vertically. Both straightening mechanisms consist of a movable portion and a fixed portion. The movable portion includes multiple position-adjustable pressure wheels 21, while the fixed portion comprises multiple straightening wheels 22. The straightening wheels 22 are staggered with the pressure wheels 21 and straighten the wire, allowing the two straightening mechanisms 2 to straighten the wire from two directions.
[0048] The wire feeding mechanism 3 includes a mounting plate 31, a driving motor 32, a wire guide roller 33, a wire guide frame 34 and a wire threading tube 35. The mounting plate 31 is vertically arranged on the horizontal vertical plate 12. A mounting bracket 311 is horizontally arranged on the right end of the mounting plate 31. A straightening mechanism 2 is arranged on the mounting bracket 311. A broken wire detector 312 is also installed on the mounting bracket 311. The broken wire detector 312 is located at the right end of the straightening mechanism 2 and monitors the transported wire in real time. A wire guide seat 341 is provided in the middle of the mounting plate 31, and a wire guide frame 34 is provided horizontally through the wire guide seat 341. The wire guide frame 34 is used to horizontally convey the wire. A group of wire guide rollers 33 are provided at the left and right ends of the wire guide frame 34, respectively. The wire guide rollers 33 in each group are distributed up and down and are arranged close to each other. The wire guide rollers 33 are all rotatably arranged on the mounting plate 31, and the shaft ends of the wire guide rollers 33 are installed with gears, which are meshed in sequence. The output end of the driving motor 32 at the rear end of the horizontal vertical plate 12 is also provided with a gear, and the other four are driven by the gear. The two ends of the mounting block 53 are respectively provided with a wire threading tube 35 through a support, and one end of the wire threading tube 35 extends between the upper and lower wire guide rollers 33, and the other ends of the two wire threading tubes 35 extend to the looping mechanism 4 and the straightening mechanism 2 respectively, and the wire threading tube 35 and the wire guide frame 34 are both narrowed at one end close to the wire guide roller 33 to adapt to the structure of the two wire guide rollers 33.
[0049] like Figure 5-8As shown, the looping mechanism 4 includes a wire feeding tube 41, a positioning seat 42, a wire guide column 43 and a size adjustment mechanism. The wire feeding tube 41 is horizontally arranged on the horizontal vertical plate 12 through a support, and the wire guide column 43 is arranged at the left end of the wire feeding tube 41. The wire guide column 43 is arranged on the horizontal vertical plate 12 through the size adjustment mechanism. The wire guide column 43 is longitudinally arranged, and the bottom of the wire guide column 43 is arranged as an inclined surface, and a guide groove 431 is provided at the bottom end of the wire guide column 43. The guide groove 431 is arranged in an arc-shaped structure, and the two ends of the guide groove 431 extend to the edge of the wire guide column 43, and the wire guide column 43 rotates a certain angle so that the direction of the two ends of the guide groove 431 is slightly inclined to the feeding direction of the iron wire, and the position of the inlet end of the guide groove 431 corresponds to the outlet position of the wire feeding tube 41, so that the iron wire output from the wire feeding tube 41 enters the guide groove 431 and is bent. The positioning seat 42 is fixedly arranged on the processing table. The top of the positioning seat 42 is provided with a positioning block 422 and a fixing block 421 at one end near the wire guide column 43. The positioning block 422 is located near the outlet end of the guide groove 431, and the bottom of the positioning block 422 is flush with the bottom of the fixing block 421. The gap between the positioning block 422 and the fixing block 421 forms a through hole 423 for the wire to pass through. The position of the through hole 423 corresponds to the position of the outlet end of the guide groove 431 of the wire guide column 43, so that the wire output by the wire feeding pipe 41 can pass through the through hole 423 downward after being bent through the guide groove 431 and then extend upward in a ring shape to form a circle, finally making the front end of the wire abut against the positioning block 422 for positioning. At the same time, the wire feeding mechanism 3 immediately stops feeding the wire, and then moves to the position of the positioning seat 42 through the movable clamping mechanism 6, and clamps and fixes the two ends of the wire ring opening, and finally cuts off the rear end of the wire ring by the cutting mechanism 5, thereby completing the forming of the wire ring.
[0050] like Figure 5 As shown, the size adjustment mechanism includes a fixed seat 44, a sliding seat 45, a movable seat 46, and a clamping seat 47. The fixed seat 44 is fixedly set on the processing plate, and the sliding seat 45 is longitudinally slidably set on the fixed seat 44. A screw 451 is provided on the top of the sliding seat 45, and the screw 451 penetrates the fixed seat 44 upward and cooperates with the nut to position the sliding seat 45, so that the position of the sliding seat 45 can be adjusted up and down, and the movable seat 46 is horizontally slidably set on the sliding seat 45. A waist-shaped positioning hole 461 is horizontally opened on the movable seat 46, and a positioning bolt 462 is horizontally penetrated in the waist-shaped positioning hole 461. The positioning bolt 462 is fixedly connected to the sliding seat 45, and the positioning bolt 462 cooperates with the nut to position the movable seat 46, so that the horizontal position of the movable seat 46 can be adjusted, and the clamping seat 47 is set at one end of the movable seat 46. The guide wire column 43 is longitudinally clamped on the clamping seat 47 by a fastener, so that the guide wire column 43 can be adjusted in angle and position.
[0051] In order to ensure that the wire ring will not fall down under the influence of gravity when the looping mechanism 4 produces a large diameter wire ring, which will cause the wire to be unable to form a complete ring, the looping mechanism 4 also includes a lower push-up wire device, which includes a lifting cylinder 48 and a push-up wire plate 49. The lifting cylinder 48 is fixedly set on the horizontal vertical plate 12 and is located below the wire conveying pipe 41. The push-up wire plate 49 is horizontally set at the top of the piston rod of the lifting cylinder 48. The push-up wire plate 49 supports the lower end of the wire ring, so that when the wire extends in a ring shape, the push-up wire plate 49 can play a supporting role on the bottom end of the wire ring, so that one end of the wire can smoothly extend to the top of the positioning block 422.
[0052] like Figure 9-10 The cutting mechanism 5 shown includes a slide rail seat 51, a sliding block 52, a cutting cylinder 54, and a cutter 55. The slide rail seat 51 is set on the processing table and is located on the side close to the horizontal vertical plate 12. The slide block 52 is set on the slide rail seat 51 through the slide rail sliding. One end of the slide block 52 is driven by the piston rod of the cutting cylinder 54. The sliding direction of the slide block 52 is perpendicular to the feeding direction of the wire. The side of the slide block 52 close to the wire feeding tube 41 is provided with a mounting block 53, and the mounting block 53 is located behind the positioning seat 42. At the end, the cutter 55 is horizontally set at one end of the mounting block 53 close to the positioning seat 42, and the top of the cutter 55 is fitted with the bottom of the fixed block 421, and one end of the cutting edge of the cutter 55 extends to one side of the through-port 423, so that the cutting cylinder 54 pushes the sliding block 52 to slide forward, so that the cutter 55 moves along the bottom of the fixed block 421 toward the positioning block 422, thereby quickly cutting the annular wire in the through-port 423. At this time, the wire ring is formed, and an opening is left on the side of the wire ring close to the positioning seat 42.
[0053] like Figure 3-4 As shown, the movable clamping mechanism 6 includes a displacement rail 61, a displacement cylinder 62, a displacement support 63, an upper clamping assembly 64 and a lower clamping assembly 65. The displacement rail 61 is horizontally arranged on the longitudinal vertical plate 13, and the displacement support 63 is horizontally slidably arranged on the displacement rail 61. The displacement support 63 is driven by the displacement cylinder 62 arranged at the front end of the displacement rail 61. The rear end of the displacement support 63 is respectively provided with the upper clamping assembly 64 and the lower clamping assembly 65. The upper clamping assembly 64 and the lower clamping assembly 65 are distributed up and down and are symmetrically arranged. The displacement bracket is pushed to move toward the looping mechanism 4 by the displacement cylinder 62, so that the upper clamping assembly 64 and the lower clamping assembly 65 can respectively clamp the two ends of the wire ring opening.
[0054] like Figure 11As shown, the upper clamping assembly 64 and the lower clamping assembly 65 both include a mounting support plate 647, a clamping cylinder 645, and a clamping assembly 641. The front end of the mounting support plate 647 is fixed to the rear end of the displacement support 63 by fasteners, and the mounting position of the mounting support plate 647 is adjustable. The clamping cylinder 645 is horizontally arranged on the rear end of the mounting support plate 647, and a push block 646 is provided at one end of the piston rod of the clamping cylinder 645. The two sides of the push block 646 are gradually narrowed. The front end of the mounting support plate 647 is hingedly provided with a clamping assembly 641. The clamping assembly 641 includes two symmetrically arranged clamps 642 and a pin 643 arranged in the middle of the two clamps 642. The pin 643 is rotatably arranged on the mounting support plate 647. A spring 644 is provided between one end of the two clamps 642, and the spring 644 supports the two clamps 642 so that The jaws of the clamp 642 can always be in an open state without being affected by external forces. The other ends of the two clamps 642 are respectively arranged on both sides of the push block 646. The push block 646 is pushed by the clamping cylinder 645, so that the two sides of the push block 646 support the two clamps 642, so that the clamp assembly 641 can be opened and closed on the mounting support plate 647, and the horizontal positions of the clamp assemblies 641 in the upper clamping assembly 64 and the lower clamping assembly 65 are respectively located at the upper and lower ends of the positioning block 422, so that the wire ring on the positioning seat 42 can be clamped, and the upper clamping assembly 64 and the lower clamping assembly 65 are moved at a certain angle in the horizontal direction when installed with the displacement support 63, so that the clamp assembly 641 is tilted at a certain angle in the horizontal direction, so that the jaw angle of the clamp assembly 641 is more adapted to the wire ring, avoiding the situation of clamping deformation.
[0055] like Figure 12-15As shown, the welding mechanism 7 includes a welding base 71, a lifting guide plate 72, a driving cylinder 73, a lower electrode arm 74, an upper electrode arm 75, and a welding positioning assembly 8. The welding base 71 is set on the support table 11, and the lower electrode arm 74 is horizontally set on the welding base 71. One end of the lower electrode arm 74 extends to the processing opening 131 of the longitudinal vertical plate 13. The lifting guide plate 72 is longitudinally set at one end of the welding base 71. A lifting seat 76 is longitudinally slidably set on the lifting guide plate 72, and the driving cylinder 73 It is arranged on the lifting guide plate 72 and drives the lifting seat 76 to rise and fall on the lifting guide plate 72. The upper electrode arm 75 is horizontally arranged at the bottom of one end of the lifting seat 76. The upper electrode arm 75 is located directly above the lower electrode arm 74. One end of the upper electrode arm 75 and the lower electrode arm 74 are both provided with a positioning block 77. The positioning block 77 is provided with a positioning groove 771 for accommodating the wire ring on one side close to the horizontal vertical plate 12. The positioning groove 771 is a V-shaped structure, so that when the movable clamping assembly clamps and resets the wire ring, The two ends of the opening of the wire ring are respectively inserted into the positioning grooves 771 of the two positioning blocks 77, and the horizontal position of the two positioning blocks 77 is located between the upper clamping assembly 64 and the lower clamping assembly 65, avoiding interference with the upper clamping assembly 64 and the lower clamping assembly 65 during horizontal displacement, and making the upper clamping assembly 64 and the lower clamping assembly 65 clamp the wire ring and reset under the drive of the displacement support 63, so that the two ends of the opening of the wire ring are respectively inserted into the positioning grooves 771 of the two positioning blocks 77. In the figure, the welding positioning assembly 8 is arranged on one side of the upper electrode arm 75 and the lower electrode arm 74, and a positioning pressure rod 88 is horizontally movably arranged in the welding positioning assembly 8. One end of the positioning pressure rod 88 is provided with a positioning protrusion 881 that is compatible with the positioning groove 771, so that the positioning pressure rod 88 presses and fixes the wire ring in the positioning groove 771 through the positioning protrusion 881. Finally, under the push of the driving cylinder 73, the lifting seat 76 drives the upper electrode arm 75 downward and welds the two ends of the wire ring by butt welding.
[0056] The welding positioning assembly 8 includes a sliding base 81, a sliding cylinder 82, a lifting support plate 83, a fixed support 84, a movable support 85, an upper clamping arm 86, and a lower clamping arm 87. The bottom of the sliding base 81 is horizontally slidably set on the bracket platform 11 through a slide rail and is located on one side of the welding base 71, and one end of the sliding base 81 is driven by a sliding cylinder 82 installed on the support frame, so that the positioning pressure rod 88 can be located on one side of the movable clamping mechanism 6 when not in use to avoid interference; a fixed support 84 is fixedly set on the sliding base 81, and the lower clamping arm 87 is horizontally slidably set in the fixed support 84, and the lower clamping arm 87 is horizontally displaced by the drive of a servo cylinder 841 installed on one side of the fixed support 84, thereby making the lower clamping arm 8 7 can be close to the lower electrode arm 74, and the lifting support plate 83 is longitudinally arranged at one end of the sliding base 81. The lifting support plate 83 is located on one side of the lifting guide plate 72. The movable support 85 is longitudinally slidably arranged on the lifting support plate 83. The upper clamping arm 86 is horizontally slidably arranged in the movable support 85, and the upper clamping arm 86 is horizontally displaced by the drive of the servo cylinder 2 851 installed on one side of the movable support 85. The positioning pressure rod 88 is arranged on the side of the upper clamping arm 86 and the lower clamping arm 87 close to the positioning block 77, so that the two positioning pressure rods 88 are respectively translated under the drive of the servo cylinder 1 841 and the servo cylinder 2 851, so that the positioning pressure rod 88 is close to the positioning block 77 and the wire ring in the positioning groove 771 is pressed and positioned through the positioning protrusion 881. Among them, one side of the movable support 85 and one side of the lifting seat 76 are connected in a horizontal sliding manner through the cooperation of a slider and a slide rail, so that the lifting seat 76 drives the movable support 85 to rise and fall together when it rises and falls, and the upper clamping arm 86 is lowered together with the upper electrode arm 75.
[0057] Working principle: During operation, the iron wire is unwound and sequentially passed through the wire break detector 312, the straightening mechanism 2 and the wire feeding mechanism 3 to be fed into the wire feeding tube 41. The iron wire output from one end of the wire feeding tube 41 enters the guide groove 431 at the lower end of the wire guide column 43. Since the direction of the wire guide groove is slightly inclined to the wire feeding direction, the iron wire passes through the through opening 423 downward after being bent and guided by the guide groove 431, and is extended in a ring shape, and finally one end of the wire loop is pressed against the top of the positioning block 422. At this time, the wire feeding mechanism 3 stops running, and then the wire is clamped. The mechanism is started, and the displacement cylinder 62 pushes the displacement bracket to move toward the positioning seat 42. At this time, the upper clamping assembly 64 and the lower clamping assembly 65 are respectively located at the upper and lower ends of the positioning block 422. At this time, the clamping cylinder 645 pushes the push block 646, so that the two sides of the push block 646 support the two clamps 642, and enable the clamp assembly 641 to clamp the two ends of the opening of the wire ring. Then the cutting cylinder 54 in the cutting mechanism 5 pushes the sliding block 52 to move forward, so that the cutter 55 quickly cuts the wire end at the bottom of the through hole 423. After the wire ring is cut off, the displacement cylinder 62 drives the displacement bracket to return. During the return process, the upper and lower clamping assemblies 65 drive the wire ring to move to the position of the positioning block 77 and stop, and make the two ends of the wire ring opening respectively fit into the two positioning grooves 771. Then the sliding cylinder 82 first pushes the sliding base 81 forward so that the positioning pressure rod 88 is facing the positioning block 77. Then, under the drive of the servo cylinder 1 841 and the servo cylinder 2 851, the positioning pressure rod 88 is embedded into the positioning groove 771 through the positioning protrusion 881 at its front end to align the wire ring. The two ends of the wire ring are pressed and positioned. At this time, the upper clamping assembly 64 and the lower clamping assembly 65 no longer clamp the wire ring, and the displacement cylinder 62 continues to return and move into position. Finally, under the push of the driving cylinder 73, the lifting seat 76 drives the upper electrode arm 75 downward and welds the two ends of the wire ring by butt welding. At the same time, the lifting seat 76 also drives the movable support 85 downward, so that the positioning pressure rod 88 on the upper clamping arm 86 is always coordinated with the positioning block 77 on the upper electrode arm 75, and finally the coiling welding process of the wire ring is completed.
[0058] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.
Claims
1. A fully automatic looping welding machine, comprising a frame (1), a straightening mechanism (2), a wire feeding mechanism (3), a looping mechanism (4), a cutting mechanism (5), a movable clamping mechanism (6), and a welding mechanism (7), wherein the frame (1) comprises a support platform (11), a transverse vertical plate (12), and a longitudinal vertical plate (13), the transverse vertical plate (12) and the longitudinal vertical plate (13) are arranged on one side of the support platform (11), and the angle between the transverse vertical plate (12) and the longitudinal vertical plate (13) is 90°, the straightening mechanism (2), the wire feeding mechanism (3), and the looping mechanism (4) are arranged on the transverse vertical plate (12) from right to left, the straightening mechanism (2) is used to straighten the unwound iron wire, the wire feeding mechanism (3) transports the straightened iron wire to the looping mechanism (4), and the looping mechanism (4) is used to bend the iron wire into a ring shape, characterized in that; The longitudinal vertical plate (13) is provided with a processing opening (131), and the movable clamping mechanism (6) is movably provided on the longitudinal vertical plate (13). The movable clamping mechanism (6) is used to clamp the wire ring formed in the looping mechanism (4), so that after the wire ring is cut by the cutting mechanism (5) installed on the processing table, the movable clamping mechanism (6) drives the cut wire ring to move and place it on the welding mechanism (7). The welding mechanism (7) is provided on the support table (11), and one end of the welding mechanism (7) extends to the processing opening (131) and welds the two ends of the wire ring to form a ring. The welding mechanism (7) comprises a welding base (71), a lifting guide plate (72), a driving cylinder (73), a lower electrode arm (74), an upper electrode arm (75), and a welding positioning assembly (8). The welding base (71) is arranged on a support platform (11). The lower electrode arm (74) is horizontally arranged on the welding base (71). One end of the lower electrode arm (74) extends to the processing opening (131) of the longitudinal vertical plate (13). The lifting guide plate (72) is longitudinally arranged on one end of the welding base (71). A lifting seat (76) is longitudinally slidably arranged on the lifting guide plate (72). The driving cylinder (73) is arranged on the lifting guide plate (72) and drives the lifting seat (76) to rise and fall on the lifting guide plate (72). One end of the lifting seat (76) The upper electrode arm (75) is horizontally arranged at the bottom, and the upper electrode arm (75) is located directly above the lower electrode arm (74). One end of the upper electrode arm (75) and the lower electrode arm (74) are both provided with a positioning block (77), and a side of the positioning block (77) close to the horizontal vertical plate (12) is provided with a positioning groove (771) for accommodating an iron wire ring; the welding positioning assembly (8) is arranged on one side of the upper electrode arm (75) and the lower electrode arm (74), and a positioning pressure rod (88) is horizontally movably arranged in the welding positioning assembly (8), and one end of the positioning pressure rod (88) is provided with a positioning protrusion (881) adapted to the positioning groove (771), so that the positioning pressure rod (88) presses and fixes the iron wire ring in the positioning groove (771) through the positioning protrusion (881).
2. A fully automatic loop welding machine according to claim 1, characterized in that: The welding positioning assembly (8) includes a sliding base (81), a sliding cylinder (82), a lifting support plate (83), a fixed support (84), a movable support (85), an upper clamping arm (86), and a lower clamping arm (87). The bottom of the sliding base (81) is arranged on the support platform (11) through a slide rail for horizontal sliding and is located on one side of the welding base (71). One end of the sliding base (81) is driven by a sliding cylinder (82) installed on the support frame. The fixed support (84) is fixedly arranged on the sliding base (81). The lower clamping arm (87) is horizontally slidably arranged in the fixed support (84). The lower clamping arm (87) is horizontally displaced by the drive of a servo cylinder (841) installed on one side of the fixed support (84). The lifting support plate (83) is longitudinally arranged at one end of the sliding base (81). The lifting support plate (83) The movable support (85) is arranged on one side of the lifting guide plate (72) and is longitudinally slidably provided on the lifting support plate (83). The upper clamping arm (86) is arranged in the movable support (85) and is horizontally slidably provided. The upper clamping arm (86) is horizontally displaced by the drive of the servo cylinder 2 (851) installed on one side of the movable support (85). The positioning pressure rod (88) is arranged on one side of the upper clamping arm (86) and the lower clamping arm (87) close to the positioning block (77), so that the two positioning pressure rods (88) are respectively driven by the servo cylinder 1 (841) and the servo cylinder 2 (851). The movable support (85) is horizontally slidably connected to the lifting seat (76) on one side, so that the lifting seat (76) drives the movable support (85) to rise and fall together when the lifting seat (76) is lifted and lowered, and the upper clamping arm (86) is lowered together with the upper electrode arm (75).
3. A fully automatic loop welding machine as claimed in claim 1, characterized in that: The wire feeding mechanism (3) comprises a mounting plate (31), a driving motor (32), a wire guide roller (33), a wire guide frame (34) and a wire threading tube (35), wherein the mounting plate (31) is vertically arranged on the horizontal vertical plate (12), a mounting bracket (311) is horizontally arranged on the right end of the mounting plate (31), the straightening mechanism (2) is arranged on the mounting bracket (311), a wire guide seat (341) is arranged in the middle of the mounting plate (31), the wire guide frame (34) is horizontally penetrated in the wire guide seat (341), a channel for conveying iron wire is horizontally penetrated in the wire guide frame (34), a group of wire guide rollers (33) are respectively arranged at the left and right ends of the wire guide frame (34), and each group of wire guide rollers (33) are provided. The wire guide rollers (33) are all distributed up and down and are arranged close to each other. The wire guide rollers (33) are all rotatably arranged on the mounting plate (31), and the wire guide rollers (33) are all driven by a driving motor (32) installed at the rear end of the horizontal vertical plate (12). The circumferential surface of the wire guide roller (33) is provided with a circle for accommodating the wire guide groove, so that the two groups of wire guide rollers (33) drive the wire to be transported forward. A wire threading tube (35) is respectively arranged horizontally at both ends of the mounting plate (31) through a support, and one end of the wire threading tube (35) extends between the upper and lower wire guide rollers (33), and the other ends of the two wire threading tubes (35) extend to the looping mechanism (4) and the straightening mechanism (2).
4. A fully automatic loop welding machine as claimed in claim 1, characterized in that: The looping mechanism (4) includes a wire feeding tube (41), a positioning seat (42), a wire guide column (43) and a size adjustment mechanism. The wire feeding tube (41) is horizontally arranged on the horizontal vertical plate (12) through a support. The wire guide column (43) is arranged at the left end of the wire feeding tube (41). The wire guide column (43) is arranged on the horizontal vertical plate (12) through the size adjustment mechanism. The wire guide column (43) is arranged longitudinally. The bottom of the wire guide column (43) is arranged as an inclined surface. A guide groove (431) is provided at the bottom end of the wire guide column (43). The guide groove (431) is arranged in an arc-shaped structure. Both ends of the guide groove (431) extend to the edge of the wire guide column (43), and the directions of both ends of the guide groove (431) are slightly inclined to the conveying direction of the iron wire. The position of the inlet end of the guide groove (431) corresponds to the outlet position of the wire feeding tube (41), so that the iron wire output from the wire feeding tube (41) is The wire enters the guide groove (431) and is bent. The positioning seat (42) is fixedly arranged on a side of the support platform (11) close to the horizontal vertical plate (12). A positioning block (422) and a fixing block (421) are provided at one end of the top of the positioning seat (42) close to the wire guide column (43). The positioning block (422) is located near the outlet end of the guide groove (431). The bottom of the positioning block (422) is flush with the bottom of the fixing block (421). The gap between the positioning block (422) and the fixing block (421) forms a through-hole (423) for the wire to pass through. The position of the through-hole (423) corresponds to the position of the outlet end of the guide groove (431) of the wire guide column (43). The wire output from the wire feeding pipe (41) passes through the through-hole (423) after being bent through the guide groove (431) and extends in a ring shape, and the front end of the wire is pressed against the positioning block (422) for positioning.
5. A fully automatic loop welding machine as claimed in claim 4, characterized in that: The size adjustment mechanism comprises a fixed seat (44), a sliding seat (45), a movable seat (46), and a clamping seat (47). The fixed seat (44) is fixedly arranged on the horizontal vertical plate (12). The sliding seat (45) is longitudinally slidably arranged on the fixed seat (44). A screw (451) is provided on the top of the sliding seat (45). The screw (451) passes through the fixed seat (44) upward and cooperates with a nut to realize positioning of the sliding seat (45). The sliding seat (45) slides horizontally on the fixed seat (44). The movable seat (46) is provided, and a waist-shaped positioning hole (461) is horizontally opened on the movable seat (46), and a positioning bolt (462) is horizontally provided through the waist-shaped positioning hole (461), the positioning bolt (462) is fixedly connected to the sliding seat (45), and the positioning bolt (462) cooperates with the nut to realize the positioning of the movable seat (46), and the clamping seat (47) is provided at one end of the movable seat (46), and the guide wire column (43) is longitudinally clamped on the clamping seat (47).
6. A fully automatic loop welding machine as claimed in claim 1, characterized in that: The cutting mechanism (5) includes a slide rail seat (51), a sliding block (52), a cutting cylinder (54), and a cutter (55). The slide rail seat (51) is arranged on the support platform (11) and is located on a side close to the horizontal vertical plate (12). The slide rail seat (51) is provided with the slide block (52) by sliding on the slide rail. One end of the slide block (52) is driven by the piston rod of the cutting cylinder (54). The sliding direction of the slide block (52) is perpendicular to the conveying direction of the wire. A mounting block (53) is provided on the side of the slide block (52) close to the wire feeding pipe (41). ), the mounting block (53) is located at the rear end of the positioning seat (42), the cutter (55) is horizontally arranged at one end of the mounting block (53) close to the positioning seat (42), the top of the cutter (55) is arranged to fit the bottom of the fixed block (421), and one end of the cutting edge of the cutter (55) extends to one side of the through-port (423), so that the cutting cylinder (54) pushes the sliding block (52) to slide forward, so that the cutter (55) moves along the bottom of the fixed block (421) toward the positioning block (422), thereby cutting the circular iron wire in the through-port (423).
7. A fully automatic loop welding machine as claimed in claim 1, characterized in that: The movable clamping mechanism (6) comprises a displacement slide rail (61), a displacement cylinder (62), a displacement support (63), an upper clamping assembly (64) and a lower clamping assembly (65). The displacement slide rail (61) is transversely arranged on the longitudinal vertical plate (13), and the displacement support (63) is transversely slidably arranged on the displacement slide rail (61). The displacement support (63) is driven by the displacement cylinder (62) arranged at the front end of the displacement slide rail (61). The rear end of the displacement support (63) is respectively provided with the upper clamping assembly (64). The clamping assembly (64) and the lower clamping assembly (65) are distributed up and down and symmetrically arranged between the upper clamping assembly (64) and the lower clamping assembly (65). The displacement cylinder (62) pushes the displacement bracket to move toward the looping mechanism (4), so that the upper clamping assembly (64) and the lower clamping assembly (65) can respectively clamp the two ends of the wire ring opening, and the horizontal position of the upper clamping assembly (64) and the horizontal position of the lower clamping assembly (65) are respectively located at the upper end and the lower end of the position of the two positioning blocks (77).
8. A fully automatic loop welding machine as claimed in claim 7, characterized in that: The upper clamping assembly (64) and the lower clamping assembly (65) both include a mounting support plate (647), a clamping cylinder (645), and a clamp assembly (641). The front end of the mounting support plate (647) is fixed to the rear end of the displacement support (63) by a fastener. The clamping cylinder (645) is horizontally arranged on the rear end of the mounting support plate (647). A push block (646) is provided at one end of the piston rod of the clamping cylinder (645). Both sides of the push block (646) are gradually narrowed. The front end of the mounting support plate (647) is hingedly provided with the clamp assembly (641). The clamp assembly (641) includes two symmetrically arranged clamps (642), a clamp assembly (641) and a clamp assembly (641) arranged at The pin shaft (643) in the middle of the two clamps (642) is rotatably arranged on the mounting support plate (647). A spring (644) is arranged between one end of the two clamps (642), and the spring (644) supports the two clamps (642). The other ends of the two clamps (642) are respectively arranged on both sides of the push block (646). The push block (646) is pushed by the clamping cylinder (645), so that the two sides of the push block (646) support the two clamps (642), so that the clamp assembly (641) can be opened and closed on the mounting support plate (647), thereby clamping the wire ring in the looping mechanism (4).
9. The fully automatic loop welding machine according to claim 1, characterized in that: The straightening mechanism (2) comprises two straightening mechanisms, one straightening mechanism is arranged horizontally, and the other straightening mechanism is arranged vertically.
10. The fully automatic loop welding machine according to claim 4, characterized in that: The looping mechanism (4) also includes a lower top screw device, which includes a lifting cylinder (48) and a top screw plate (49). The lifting cylinder (48) is fixedly arranged on the horizontal vertical plate (12) and is located below the wire feeding pipe (41). The top screw plate (49) is horizontally arranged at the top end of the piston rod of the lifting cylinder (48), and the top screw plate (49) supports the lower end of the wire ring.