Novel wire feeding device

Abstract

The invention relates to the technical field of welding wire feeding equipment, and provides a novel wire feeding device which comprises a driving mechanism, two wire feeding mechanisms, a driving gear, a central wire guide pipe and a guide screw tap. A first wire feeding part is formed between the first pressing wheel and the first wire feeding wheel; a second wire feeding part is formed between the second pressing wheel and the second wire feeding wheel; the driving gear enables the first wire feeding wheel and the second wire feeding wheel to rotate in the same direction; the central wire guide tube is arranged between the two wire feeding parts; the guide screw tap is arranged at the input end of the first wire feeding part or the second wire feeding part; and the two hinging holes are coaxially arranged, so that the two wire feeding mechanisms can rotate around the driving shaft. According to the novel wire feeding device, the two hinging holes are formed, the two wire feeding mechanisms are both hinged to the driving shaft, the two wire feeding mechanisms can rotate around the driving shaft so that the angle between the two wire feeding mechanisms can be adjusted, the guide-in angle of a welding wire and a guide screw tap can be adjusted, friction force borne by the welding wire can be reduced, and the welding wire feeding efficiency can be improved. And the wire feeding operation is easier and smoother, and the stability is better.

Description

Technical Field

[0001] The invention relates to the technical field of welding wire feeding equipment, and in particular to a novel wire feeding device. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure.

[0003] Welding usually requires wire feeding, that is, a wire feeding device or mechanism automatically delivers the welding wire to the welding position to ensure the efficiency and continuity of the welding process.

[0004] However, in the related wire feeding technology, after the wire feeding device is installed in the electric welding machine or in the wire feeding device chassis, the entire wire feeding device is fixed and cannot move or swing. As a result, when feeding the wire, there is an angle between the welding wire and the wire guide taper when the welding wire is full and as the consumption of the welding wire gradually decreases. The welding wire always enters the wire feeder in a bent state, causing the welding wire to be subjected to considerable friction. The friction force applied to the welding wire is large, making the wire feeding operation difficult, the wire feeding stability poor, and also damaging the welding wire. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a new wire feeding device to solve at least one of the above-mentioned technical defects in the prior art, so that the wire feeding device can greatly reduce the friction force exerted on the welding wire when feeding the wire, making the wire feeding operation easier, smoother and more stable.

[0006] In order to achieve the purpose of the present invention, the present invention provides a novel wire feeding device, which includes:

[0007] A first wire feeding mechanism comprises a first bracket, a first pressure wheel assembly having a first pressure wheel, and a first wire feeding wheel assembly having a first wire feeding wheel, wherein the first pressure wheel assembly and the first wire feeding wheel assembly are mounted on the first bracket, and the first pressure wheel and the first wire feeding wheel are arranged to rotate relative to each other to form a first wire feeding part;

[0008] A second wire feeding mechanism comprises a second bracket, a second pressure wheel assembly having a second pressure wheel, and a second wire feeding wheel assembly having a second wire feeding wheel, wherein the second pressure wheel assembly and the second wire feeding wheel assembly are mounted on the first bracket, and the second pressure wheel and the second wire feeding wheel are arranged to rotate relative to each other to form a second wire feeding portion;

[0009] A driving mechanism, comprising a driving shaft, wherein the driving shaft is drivingly connected to the first wire feeding wheel and the second wire feeding wheel, and is used for driving the first wire feeding wheel and the second wire feeding wheel to rotate;

[0010] The first bracket and / or the second bracket are hinged to the driving shaft, so that the first wire feeding mechanism and / or the second wire feeding mechanism can rotate around the driving shaft.

[0011] Preferably, it further comprises a central wire guide tube, a first central wire guide tube positioning piece fixed to the first bracket, and a second central wire guide tube positioning piece fixed to the second bracket.

[0012] The central wire guide tube is located between the first wire feeding part and the second wire feeding part.

[0013] The two ends of the central wire guide tube are respectively sleeved on the first central wire guide tube positioning piece and the second central wire guide tube positioning piece, and the central wire guide tube is a soft wire guide tube.

[0014] Preferably, it further comprises a mounting plate, wherein the mounting plate is provided with a through hole.

[0015] The driving mechanism is arranged on the first side of the mounting plate, the first wire feeding mechanism and the second wire feeding mechanism are both arranged on the second side of the mounting plate, and the driving shaft extends from the first side of the mounting plate through the through hole into the second side of the mounting plate and is connected to the driving gear.

[0016] Preferably, it further comprises a bearing, wherein the bearing is fixed to the drive shaft through its inner ring.

[0017] The bearing is fixed to the second hinge hole through its outer ring.

[0018] Preferably, the first wire feeding wheel assembly comprises a first wire feeding gear, and the first wire feeding wheel is fixedly arranged coaxially with the first wire feeding gear and rotatably arranged on the first bracket;

[0019] The first pressure wheel assembly includes a first pressure wheel gear, and the first pressure wheel is coaxially fixedly arranged with the first pressure wheel gear and rotatably arranged on the first bracket;

[0020] The first wire feeding gear is meshed and transmission-connected with the first pressure wheel gear, and the driving gear is meshed and transmission-connected with the first wire feeding gear.

[0021] Preferably, the second wire feeding wheel assembly comprises a second wire feeding gear, and the second wire feeding wheel is coaxially fixedly arranged with the second wire feeding gear and rotatably arranged on the second bracket;

[0022] The second pressure wheel assembly comprises a second pressure wheel gear, the second pressure wheel is coaxially fixedly arranged with the second pressure wheel gear and rotatably arranged on the second bracket;

[0023] The second wire feeding gear is meshed and transmission-connected with the second pressure wheel gear, and the driving gear is meshed and transmission-connected with the second wire feeding gear.

[0024] Preferably, the first pressure wheel assembly further includes a first pressure wheel shell and a first pressure wheel shaft.

[0025] The first pressure wheel shell is provided with a first receiving groove and a first clamping groove, the first pressure wheel and the first pressure wheel gear are provided in the first receiving groove, the first pressure wheel shaft extends into the first receiving groove and is rotatably connected to the first pressure wheel and the first pressure wheel gear,

[0026] The first pressure wheel shaft is provided with a first clamping ring, and the first clamping ring is rotatably locked with the first clamping groove to limit the movement of the first pressure wheel shaft in the axial direction when it extends into the first accommodating groove.

[0027] Preferably, the first pressure wheel shaft comprises a first pressure wheel shaft body,

[0028] The first clamping ring protrudes from the first pressure wheel shaft body, and the arc length of the first clamping ring is less than or equal to the arc length of the first clamping groove notch.

[0029] Preferably, the thickness of the first clamping ring in the axial direction gradually increases from the first end to the second end of the first clamping ring;

[0030] The maximum thickness of the first clamping ring along the axial direction is greater than or equal to the width of the first clamping groove along the axial direction.

[0031] Preferably, it also includes a first buckle, a first pressure regulator and a guide tap,

[0032] The guide wire tap is arranged at the input end of the first wire feeding part or the second wire feeding part,

[0033] The first buckle is hinged to the first bracket to lock the wire guide tube of the wire guide tap or welding gun joint.

[0034] The first pressure regulator is disposed on the first pressure wheel housing to adjust the pressure of the first pressure wheel on the welding wire located in the first wire feeding section.

[0035] The beneficial effects of the present invention are as follows: the present invention provides a new type of wire feeding device, by arranging a first hinge hole on the first bracket of the first wire feeding mechanism, arranging a second hinge hole on the second bracket of the second wire feeding mechanism, and hingedly connecting the first wire feeding mechanism to the driving shaft through the first hinge hole, and hingedly connecting the second wire feeding mechanism to the driving shaft through the second hinge hole, so that the first wire feeding mechanism and the second wire feeding mechanism can rotate around the driving shaft to realize the adjustment of the relative rotation angle between the first wire feeding mechanism and the second wire feeding mechanism, so that the introduction angle between the welding wire and the wire guide tap can also be adjusted, which can greatly reduce the friction force on the welding wire, make the wire feeding operation easier and smoother, and have better stability, and greatly reduce the wear of the welding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the drawings are not deliberately scaled to the actual size, but the focus is on illustrating the subject matter of the present application.

[0037] Figure 1 A schematic diagram of the overall structure of a new wire feeding device provided by an embodiment of the present invention;

[0038] Figure 2 for Figure 1 A front view of

[0039] Figure 3 An exploded schematic diagram of a novel wire feeding device provided by an embodiment of the present invention;

[0040] Figure 4 An exploded schematic diagram of a first wire feeding mechanism provided in an embodiment of the present invention;

[0041] Figure 5 An exploded schematic diagram of a second wire feeding mechanism provided in an embodiment of the present invention;

[0042] Figure 6 This is a schematic exploded view of a first pressure wheel assembly provided in an embodiment of the present invention.

[0043] In the figure:

[0044] 100. driving mechanism; 110. driving shaft;

[0045] 200, first wire feeding mechanism; 210, first bracket; 211, first hinge hole; 220, first pressure wheel assembly; 221, first pressure wheel; 222, first pressure wheel gear; 230, first wire feeding wheel assembly; 231, first wire feeding wheel; 232, first wire feeding gear; 233, first pressure wheel shell; 2331, first accommodating groove; 2332, first clamping groove; 234, first pressure wheel shaft; 2341, first clamping ring; 2342, first pressure wheel shaft body; 240, first wire feeding part;

[0046] 300, second wire feeding mechanism; 310, second bracket; 311, second hinge hole; 320, second pressure wheel assembly; 321, second pressure wheel; 322, second pressure wheel gear; 330, second wire feeding wheel assembly; 331, second wire feeding wheel; 332, second wire feeding gear; 333, second pressure wheel shell; 3332, second clamping groove; 334, second pressure wheel shaft; 3341, second clamping ring; 3342, second pressure wheel shaft body; 340, second wire feeding part;

[0047] 400, driving gear;

[0048] 500, central wire guide tube; 510, first central wire guide tube positioning piece; 520, second central wire guide tube positioning piece;

[0049] 600, Guide tap;

[0050] 700, mounting plate; 710, through hole; 720, bearing;

[0051] 800, first buckle; 810, second buckle;

[0052] 900, a first pressure regulator; 910, a second pressure regulator. DETAILED DESCRIPTION

[0053] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0054] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which they pertain. The terms used in the specification herein are intended only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] Combine the following Figures 1 to 6 It should be understood that the following description is only an illustrative embodiment of the present invention and does not constitute any limitation to the present invention.

[0057] See also Figures 1 to 6 An embodiment of the present invention provides a novel wire feeding device, which includes: a driving mechanism 100, a first wire feeding mechanism 200, a second wire feeding mechanism 300, a driving gear 400, a central wire guide tube 500 and a wire guide tap 600.

[0058] The driving mechanism 100 has a driving shaft 110 . The driving mechanism 100 may be a driving motor, and the driving shaft 110 may be a motor output shaft of the driving motor.

[0059] The first wire feeding mechanism 200 includes a first bracket 210 , a first pressure wheel assembly 220 having a first pressure wheel 221 , and a first wire feeding wheel assembly 230 having a first wire feeding wheel 231 . The first pressure wheel assembly 220 and the first wire feeding wheel assembly 230 are mounted on the first bracket 210 .

[0060] The first pressure wheel 221 and the first wire feeding wheel 231 are arranged to rotate relative to each other to form a first wire feeding portion 240, which can clamp and convey the welding wire. The welding wire passes through the welding wire groove on the first wire feeding wheel 231 and is compressed by the first pressure wheel 221 of the first pressure wheel assembly 220. The first wire feeding gear 232 of the first wire feeding wheel assembly 230 is driven by the driving mechanism 100 to rotate and feed the welding wire.

[0061] The second wire feeding mechanism 300 includes a second bracket 310 , a second pressure wheel assembly 320 having a second pressure wheel 321 , and a second wire feeding wheel assembly 330 having a second wire feeding wheel 331 . The second pressure wheel assembly 320 and the second wire feeding wheel assembly 330 are mounted on the second bracket 310 .

[0062] The second pressure wheel 321 and the second wire feeding wheel 331 are arranged to rotate relative to each other to form a second wire feeding section 340, which can clamp and convey the welding wire output from the first wire feeding section 240. The welding wire passes through the welding wire groove on the second wire feeding wheel 331 and is pressed by the second pressure wheel 321 of the second pressure wheel assembly 320. The second wire feeding gear 332 of the second wire feeding wheel assembly 330 is driven by the driving mechanism 100 to rotate and feed the welding wire.

[0063] The driving shaft 110 is transmission-connected to the first wire feeding wheel 231 and the second wire feeding wheel 331 , and is used to drive the first wire feeding wheel 231 and the second wire feeding wheel 331 to rotate.

[0064] The first bracket 210 and / or the second bracket 310 are hinged to the driving shaft 110, so that the first wire feeding mechanism 200 and / or the second wire feeding mechanism 300 can rotate around the driving shaft 110. Of course, only one of the first wire feeding mechanism 200 and the second wire feeding mechanism 300 can rotate relative to the driving shaft of the driving motor.

[0065] In addition, the wire feeding device further includes a driving gear 400. The driving gear 400 is fixed on the driving shaft 110, and is disposed between the first wire feeding wheel 231 and the second wire feeding wheel 331, and is drivingly connected to both of them, so that the first wire feeding wheel 231 and the second wire feeding wheel 331 can rotate in the same direction to realize the feeding of the welding wire.

[0066] The central wire guide tube 500 is located between the first wire feeding section 240 and the second wire feeding section 340. The welding wire can pass through the first wire feeding section 240, the central wire guide tube 500 and the second wire feeding section 340 in sequence to prevent the welding wire from jumping when being transported from the first wire feeding section 240 to the second wire feeding section 340, so as to improve the stability of wire feeding.

[0067] The wire guide tap 600 is arranged at the input end of the first wire feeding part 240 or the second wire feeding part 340. When the wire guide tap 600 is arranged at the input end of the first wire feeding part 240, the wire guide tube of the welding gun joint can be arranged at the output end of the second wire feeding part 340. The welding wire can enter the wire guide tube of the welding gun joint from the wire guide tap 600, the first wire feeding part 240, the central wire guide tube 500 and the second wire feeding part 340 in sequence. The arrangement of the wire guide tap 600 can further improve the stability of wire feeding.

[0068] Of course, the wire guide tap 600 can also be set at the input end of the second wire feeding part 340, and the wire guide tube of the welding gun joint can be set at the output end of the first wire feeding part 240. The welding wire can enter the wire guide tube of the welding gun joint from the wire guide tap 600, the second wire feeding part 340, the central wire guide tube 500 and the first wire feeding part 240 in sequence, making the use of the new wire feeding device more flexible.

[0069] The first bracket 210 may be provided with a first hinge hole 211, and the second bracket 310 may be provided with a second hinge hole 311. The first hinge hole 211 may be coaxially arranged with the second hinge hole 311, and the first wire feeding mechanism 200 is hinged to the driving shaft 110 through the first hinge hole 211, and the second wire feeding mechanism 300 is hinged to the driving shaft 110 through the second hinge hole 311, so that the first wire feeding mechanism 200 and the second wire feeding mechanism 300 can rotate around the driving shaft 110, that is, the first wire feeding mechanism 200 and the second wire feeding mechanism 300 can rotate relative to each other around the driving shaft 110 at a certain angle, for example: 15°; so that the wire guide entering the guide wire can be rotated relative to the second wire feeding mechanism 300. The wire introduction angle of the cone 600 can also be adjusted. For example, when the introduction angle between the welding wire and the wire guide cone 600 is 15°, the angle between the first wire feeding mechanism 200 and the second wire feeding mechanism 300 can be adjusted to 15° to adjust the introduction angle between the welding wire and the wire guide cone 600 to zero or approaching zero. This can greatly reduce the friction force on the welding wire, thereby improving the stability of wire feeding, reducing the wear of the welding wire, making the wire feeding operation easier and smoother, and the wire feeding speed more stable, thereby improving the welding quality.

[0070] It can be understood that the new wire feeding device provided by the embodiment of the present invention, by setting a first hinge hole 211 on the first bracket 210 of the first wire feeding mechanism 200, and setting a second hinge hole 311 on the second bracket 310 of the second wire feeding mechanism 300, and the first wire feeding mechanism 200 is hinged to the driving shaft 110 through the first hinge hole 211, and the second wire feeding mechanism 300 is hinged to the driving shaft 110 through the second hinge hole 311, so that the first wire feeding mechanism 200 and the second wire feeding mechanism 300 can rotate around the driving shaft 110 to achieve the adjustment of the relative rotation angle between the first wire feeding mechanism 200 and the second wire feeding mechanism 300, so that the introduction angle between the welding wire and the guide taper 600 can also be adjusted, which can greatly reduce the friction force on the welding wire, reduce the wear of the welding wire, make the wire feeding operation easier and smoother, and the wire feeding speed is more stable, thereby improving the welding quality.

[0071] Specifically, in some embodiments of the present invention, the novel wire feeding device further includes a first central wire guide tube positioning piece 510 fixed on the first bracket 210 and a second central wire guide tube positioning piece 520 fixed on the second bracket 310 .

[0072] The two ends of the central wire guide tube 500 are respectively sleeved on the first central wire guide tube positioning piece 510 and the second central wire guide tube positioning piece 520, which can fix the position of the central wire guide tube 500 to prevent the welding wire from being transported. The central wire guide tube 500 is a soft wire guide tube, for example, the central wire guide tube 500 can be a plastic wire guide tube to prevent wire stripping; when the first wire feeding mechanism 200 and the second wire feeding mechanism 300 rotate relative to each other (for example, the first wire feeding mechanism 200 and the second wire feeding mechanism 300 swing up and down), the central wire guide tube 500 can bend, and the angle between the welding wire and the central wire guide tube 500 can be adjusted, so that the introduction angle between the welding wire and the wire guide cone 600 is easier to adjust, further improving the stability and smoothness of the welding wire transportation.

[0073] Of course, in order to facilitate the installation, use and disassembly of the new wire feeding device, in some embodiments of the present invention, the new wire feeding device also includes a mounting plate 700, and a through hole 710 is provided on the mounting plate 700.

[0074] The driving mechanism 100 is arranged on the first side of the mounting plate 700, the first wire feeding mechanism 200 and the second wire feeding mechanism 300 are both arranged on the second side of the mounting plate 700, and the driving shaft 110 extends from the first side of the mounting plate 700 through the through hole 710 into the second side of the mounting plate 700 and is connected to the driving gear 400.

[0075] When the driving shaft 110 of the driving mechanism 100 rotates, the driving gear 400 located on the second side of the mounting plate 700 can be driven to rotate, thereby driving the first wire feeding wheel 231 and the second wire feeding wheel 331 to rotate in the same direction to transport the welding wire.

[0076] That is, the driving motor is fixed on the mounting plate 700, and the first wire feeding mechanism 200 and the second wire feeding mechanism 300 are both hinged on the motor output shaft of the driving motor. When the novel wire feeding device needs to be installed in the electric welding machine, it is only necessary to align the mounting hole on the mounting plate 700 with the mounting hole reserved in advance on the electric welding machine according to the installation drawing, adjust the position and tighten the mounting bolts.

[0077] Furthermore, in order to reduce the friction generated when the first wire feeding mechanism 200 and the second wire feeding mechanism 300 are hinged and rotated with the driving shaft 110, and to make the angle adjustment between the first wire feeding mechanism 200 and the second wire feeding mechanism 300 more flexible, in some embodiments of the present invention, the new wire feeding device also includes a bearing 720, and the bearing 720 is fixedly mounted on the driving shaft 110 through its inner ring, and the bearing 720 is fixed to the second hinge hole 311 through its outer ring.

[0078] In some embodiments of the present invention, the first wire feeding wheel assembly 230 further includes a first wire feeding gear 232 , wherein the first wire feeding wheel 231 and the first wire feeding gear 232 are coaxially fixedly disposed and rotatably disposed on the first bracket 210 .

[0079] The first pressure wheel assembly 220 includes a first pressure wheel gear 222, and the first pressure wheel 221 is coaxially fixedly arranged with the first pressure wheel gear 222 and rotatably arranged on the first bracket 210. Of course, in some embodiments, the first pressure wheel assembly 220 may not be equipped with the first pressure wheel gear 222, but the first pressure wheel 221 presses the welding wire and then rotates with the rotation of the first wire feeding wheel 231.

[0080] The first wire feeding gear 232 is meshed and transmission-connected with the first pressure wheel gear 222, and the driving gear 400 is meshed and transmission-connected with the first wire feeding gear 232. When the driving gear 400 rotates in the clockwise direction, the first wire feeding gear 232 also rotates in the clockwise direction, thereby driving the first pressure wheel gear 222 to rotate in the counterclockwise direction, so that the first wire feeding portion 240 formed between the first pressure wheel 221 and the first wire feeding wheel 231 arranged opposite to each other can feed the welding wire in the first direction, and the gear transmission is cleverly utilized to simplify the structure of the first wire feeding mechanism 200, so as to save manufacturing cost and maintenance cost.

[0081] Of course, in order to further simplify the structure of the second wire feeding mechanism 300, make the new wire feeding device simpler, reduce the failure rate and save costs, in some embodiments of the present invention, the second wire feeding mechanism 300 and the first wire feeding mechanism 200 are arranged symmetrically.

[0082] Specifically, the second wire feeding wheel assembly 330 further includes a second wire feeding gear 332 , wherein the second wire feeding wheel 331 and the second wire feeding gear 332 are coaxially fixedly arranged and rotatably arranged on the second bracket 310 .

[0083] The second pressure wheel assembly 320 includes a second pressure wheel gear 322, and the second pressure wheel 321 is coaxially fixedly arranged with the second pressure wheel gear 322 and rotatably arranged on the second bracket 310. Of course, in some embodiments, the second pressure wheel assembly 320 may not be equipped with the second pressure wheel gear 322, but the second pressure wheel 321 presses the welding wire and then rotates with the rotation of the second wire feeding wheel 331.

[0084] The second wire feeding gear 332 is meshed and transmission-connected with the second pressure wheel gear 322, and the driving gear 400 is meshed and transmission-connected with the second wire feeding gear 332. When the driving gear 400 rotates in the clockwise direction, the second wire feeding gear 332 rotates in the counterclockwise direction, thereby driving the second pressure wheel gear 322 to rotate in the clockwise direction, so that the second wire feeding portion 340 formed between the second pressure wheel 321 and the second wire feeding wheel 331 which are arranged opposite to each other can feed the welding wire in the first direction, and the gear transmission is cleverly used to simplify the structure of the second wire feeding mechanism 300, so as to save the manufacturing cost and the maintenance cost.

[0085] Combination Figure 6 Of course, in some embodiments of the present invention, the first pressure wheel assembly 220 also includes a first pressure wheel shell 233 and a first pressure wheel shaft 234.

[0086] The first pressure wheel housing 233 is provided with a first receiving groove 2331 and a first clamping groove 2332 , and the first pressure wheel 221 and the first pressure wheel gear 222 are provided in the first receiving groove 2331 .

[0087] The first pressing wheel shaft 234 extends into the first receiving groove 2331 and is rotatably connected to the first pressing wheel 221 and the first pressing wheel gear 222 .

[0088] The first pressing wheel shaft 234 is provided with a first snap ring 2341, which is rotatably locked with the first clamping groove 2332 to limit the axial movement of the first pressing wheel shaft 234 when it extends into the first receiving groove 2331, making the installation and removal of the first pressing wheel 221 and the first pressing wheel gear 222 more convenient and quick.

[0089] For example, when the first pressure wheel 221 and the first pressure wheel gear 222 need to be installed in the first accommodating groove 2331, the first pressure wheel shaft 234 can be extended into the first accommodating groove 2331, and the first pressure wheel shaft 234 can be rotated to lock the first retaining ring 2341 with the first retaining groove 2332, and the installation is completed; when the first pressure wheel 221 and the first pressure wheel gear 222 need to be removed from the first accommodating groove 2331, the first pressure wheel shaft 234 can be rotated in the opposite direction to unlock the first retaining ring 2341 with the first retaining groove 2332, and the disassembly is completed, which is convenient and quick.

[0090] Specifically, in some embodiments of the present invention, the first pressure wheel shaft 234 includes a first pressure wheel shaft body 2342 .

[0091] The first snap ring 2341 protrudes from the first pressure wheel shaft body 2342, and the arc length of the first snap ring 2341 is less than or equal to the arc length of the notch of the first clamping groove 2332. It is ensured that there is no mutual interference between the first snap ring 2341 and the first clamping groove 2332 when they are unlocked, which further facilitates the disassembly of the first pressure wheel 221 and the first pressure wheel gear 222, making the disassembly of the first pressure wheel 221 and the first pressure wheel gear 222 faster.

[0092] In order to prevent the first pressure wheel shaft 234 from loosening in the axial direction and facilitate installation and disassembly, in some embodiments of the present invention, the thickness of the first clamping ring 2341 along the axial direction gradually increases from the first end to the second end of the first clamping ring 2341.

[0093] The maximum thickness of the first clamping ring 2341 along the axial direction is greater than or equal to the width of the first clamping groove 2332 along the axial direction.

[0094] When the first pressure wheel shaft 234 and the first slot 2332 need to be locked, the first end of the first snap ring 2341 is first screwed into the first slot 2332, and the second end of the first snap ring 2341 gradually enters the first slot 2332. Since the thickness of the second end of the first snap ring 2341 along the axial direction is greater than or equal to the width of the first slot 2332 along the axial direction, the first slot 2332 can clamp the first snap ring 2341.

[0095] When the first pressure wheel shaft 234 and the first slot 2332 need to be unlocked, it is only necessary to first rotate the second end of the first snap ring 2341 out of the first slot 2332 and then gradually rotate the first end of the first snap ring 2341 out of the first slot 2332, which is convenient and quick.

[0096] Of course, in some embodiments of the present invention, the radius of the first snap ring 2341 along the radial direction gradually increases from the first end to the second end of the first snap ring 2341, and the maximum radius of the first snap ring 2341 along the radial direction is greater than or equal to the depth radius of the first groove 2332 in the radial direction, so that the first snap ring 2341 can abut against the inner wall of the first groove 2332 to achieve locking.

[0097] In addition, since the second wire feeding mechanism 300 and the first wire feeding mechanism 200 are symmetrically arranged, the second pressure wheel assembly 320 and the first pressure wheel assembly 220 can also be symmetrically arranged.

[0098] That is to say, the second pressure wheel assembly 320 also includes a second pressure wheel shell 333 and a second pressure wheel shaft 334 .

[0099] Among them, the second pressure wheel shell 333 is also provided with a second accommodating groove (not shown in the drawings) and a second clamping groove 3332, the second pressure wheel 321 and the second pressure wheel gear 322 are arranged in the second accommodating groove (not shown in the drawings), and the second pressure wheel shaft 334 is provided with a second clamping ring 3341.

[0100] The second pressure wheel shaft 334 includes a second pressure wheel shaft body 3342. The second clamping ring 3341 protrudes from the second pressure wheel shaft body 3342, and the arc length of the second clamping ring 3341 is less than or equal to the arc length of the notch of the second clamping groove 3332.

[0101] The relationship between the various components in the second pressure wheel assembly 320 is consistent with the relationship between the various components in the first pressure wheel assembly 220, and will not be repeated here.

[0102] In some embodiments of the present invention, the novel wire feeding device further includes a first buckle 800 and a first pressure regulator 900 .

[0103] Among them, the first buckle 800 is hinged to the first bracket 210, and can lock the wire guide tube of the guide tap 600 or the welding gun joint. For example, when the wire guide tube of the welding gun joint needs to be installed corresponding to the first wire feeding part, the first buckle 800 can be rotated along the first direction around the hinge axis with the first bracket 210 to lock the wire guide tube of the welding gun joint to prevent the wire guide tube of the welding gun joint from loosening; when the wire guide tube of the welding gun joint needs to be disassembled from the first wire feeding part, the first buckle 800 can be rotated along the second direction around the hinge axis with the first bracket 210 to release the lock on the wire guide tube of the welding gun joint, which facilitates the installation and disassembly of the wire guide tube of the welding gun joint.

[0104] The first pressure regulator 900 is disposed on the first pressure wheel housing 233 , and can adjust the pressure of the first pressure wheel 221 on the welding wire located in the first wire feeding part 240 .

[0105] In addition, since the second wire feeding mechanism 300 is symmetrically arranged with respect to the first wire feeding mechanism 200 , the novel wire feeding device further includes a second buckle 810 and a second pressure regulator 910 .

[0106] The second buckle 810 is hinged to the second bracket 310, and can lock the wire guide tube of the wire tap 600 or the welding gun joint. For example, when the wire tap 600 needs to be installed corresponding to the second wire feeding unit, the second buckle 810 can be rotated along the first direction around the hinge axis between it and the second bracket 310 to guide the wire tap 600 and prevent the wire tap 600 from loosening; when the wire tap 600 needs to be disassembled from the second wire feeding unit, the second buckle 810 can be rotated along the second direction around the hinge axis between it and the second bracket 310 to release the lock on the wire tap 600, which facilitates the installation and disassembly of the wire tap 600.

[0107] The second pressure regulator 910 is disposed on the second pressure wheel housing 333 , and can adjust the pressure of the second pressure wheel 321 on the welding wire located in the second wire feeding part 340 .

[0108] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0109] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "some embodiments", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0110] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A new type of wire feeding device, characterized in that: include: A first wire feeding mechanism comprises a first bracket, a first pressure wheel assembly having a first pressure wheel, and a first wire feeding wheel assembly having a first wire feeding wheel, wherein the first pressure wheel assembly and the first wire feeding wheel assembly are mounted on the first bracket, and the first pressure wheel and the first wire feeding wheel are arranged to rotate relative to each other to form a first wire feeding part; The second wire feeding mechanism comprises a second bracket, a second pressure wheel assembly having a second pressure wheel, and a second wire feeding wheel assembly having a second wire feeding wheel, wherein the second pressure wheel assembly and the second wire feeding wheel assembly are mounted on the second bracket, and the second pressure wheel and the second wire feeding wheel are arranged to rotate relative to each other to form a second wire feeding part; A driving mechanism, comprising a driving shaft, wherein the driving shaft is drivingly connected to the first wire feeding wheel and the second wire feeding wheel, and is used for driving the first wire feeding wheel and the second wire feeding wheel to rotate; The first bracket and / or the second bracket are hinged to the driving shaft, so that the first wire feeding mechanism and / or the second wire feeding mechanism can rotate around the driving shaft.

2. The novel wire feeding device according to claim 1 is characterized in that: It also includes a central wire guide tube, a first central wire guide tube positioning piece fixed to the first bracket, and a second central wire guide tube positioning piece fixed to the second bracket. The central wire guide tube is located between the first wire feeding part and the second wire feeding part. The two ends of the central wire guide tube are respectively sleeved on the first central wire guide tube positioning piece and the second central wire guide tube positioning piece, and the central wire guide tube is a soft wire guide tube.

3. The novel wire feeding device according to claim 1 is characterized in that: It also includes a mounting plate, wherein the mounting plate is provided with a through hole, The driving mechanism is arranged on the first side of the mounting plate, the first wire feeding mechanism and the second wire feeding mechanism are both arranged on the second side of the mounting plate, and the driving shaft extends from the first side of the mounting plate through the through hole into the second side of the mounting plate and is connected to the driving gear.

4. The novel wire feeding device according to claim 3 is characterized in that: Also includes a bearing, wherein the bearing is fixed to the drive shaft through its inner ring, The bearing is fixed to the second hinge hole through its outer ring.

5. The novel wire feeding device according to claim 1 is characterized in that: The first wire feeding wheel assembly comprises a first wire feeding gear, the first wire feeding wheel is fixedly arranged coaxially with the first wire feeding gear and is rotatably arranged on the first bracket; The first pressure wheel assembly includes a first pressure wheel gear, and the first pressure wheel is coaxially fixedly arranged with the first pressure wheel gear and rotatably arranged on the first bracket; The first wire feeding gear is meshed and transmission-connected with the first pressure wheel gear, and the driving gear is meshed and transmission-connected with the first wire feeding gear.

6. The novel wire feeding device according to claim 5, characterized in that: The second wire feeding wheel assembly comprises a second wire feeding gear, the second wire feeding wheel is fixedly arranged coaxially with the second wire feeding gear and is rotatably arranged on the second bracket; The second pressure wheel assembly includes a second pressure wheel gear, and the second pressure wheel is coaxially fixedly arranged with the second pressure wheel gear and rotatably arranged on the second bracket; The second wire feeding gear is meshed and transmission-connected with the second pressure wheel gear, and the driving gear is meshed and transmission-connected with the second wire feeding gear.

7. The novel wire feeding device according to claim 6, characterized in that: The first pressure wheel assembly also includes a first pressure wheel shell and a first pressure wheel shaft. The first pressure wheel shell is provided with a first receiving groove and a first clamping groove, and the first pressure wheel and the first pressure wheel gear are provided in the first receiving groove. The first pressing wheel shaft extends into the first receiving groove and is rotatably connected to the first pressing wheel and the first pressing wheel gear. The first pressure wheel shaft is provided with a first clamping ring, and the first clamping ring is rotatably locked with the first clamping groove to limit the movement of the first pressure wheel shaft in the axial direction when it extends into the first accommodating groove.

8. The novel wire feeding device according to claim 7, characterized in that: The first pressure wheel shaft comprises a first pressure wheel shaft body, The first clamping ring protrudes from the first pressure wheel shaft body, and the arc length of the first clamping ring is less than or equal to the arc length of the first clamping groove notch.

9. The novel wire feeding device according to claim 8, characterized in that: The thickness of the first snap ring in the axial direction gradually increases from the first end to the second end of the first snap ring. The maximum thickness of the first clamping ring along the axial direction is greater than or equal to the width of the first clamping groove along the axial direction.

10. The novel wire feeding device according to claim 7, characterized in that: It also includes a first buckle, a first pressure regulator and a guide tap, The guide wire tap is arranged at the input end of the first wire feeding part or the second wire feeding part, The first buckle is hinged to the first bracket to lock the wire guide tube of the guide tap or welding gun joint, and the first pressure regulator is arranged on the first pressure wheel shell to adjust the pressure of the first pressure wheel on the welding wire located in the first wire feeding part.

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