Novel wire feeding device

Abstract

The utility model 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 or 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 is reduced, and the service life of the welding wire is prolonged. And the wire feeding operation is easier and smoother, and the stability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of welding wire feeding equipment, 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, the wire feeding device is installed after the welding gun joint and is fixed along with the welding gun joint. The entire wire feeding device cannot move, resulting in increased friction on the welding wire during wire feeding, making the wire feeding operation difficult and the stability poor. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a new wire feeding device to solve at least one of the above-mentioned technical defects in the existing technology, 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] The 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,

[0008] The first pressing wheel and the first wire feeding wheel are arranged to rotate relative to each other to form a first wire feeding portion;

[0009] 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,

[0010] The second pressing wheel and the second wire feeding wheel are arranged to rotate relative to each other to form a second wire feeding portion;

[0011] a mounting plate, the driving mechanism being fixed to the mounting plate, the first wire feeding mechanism and the second wire feeding mechanism being movably connected to the mounting plate;

[0012] A driving mechanism having a driving shaft, wherein the driving shaft is in transmission connection with 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;

[0013] 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.

[0014] 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.

[0015] The central wire guide tube is located between the first wire feeding part and the second wire feeding part.

[0016] 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.

[0017] Preferably, the mounting plate is provided with a through hole.

[0018] 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.

[0019] Preferably, it further comprises a bearing, wherein the bearing is fixed to the drive shaft through its inner ring.

[0020] The bearing is fixed to the second hinge hole through its outer ring.

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

[0022] The first pressure wheel assembly includes a first pressure wheel gear, the first pressure wheel and the first pressure wheel gear are coaxially fixed and rotatably arranged on the first bracket;

[0023] 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.

[0024] Preferably, the second wire feeding wheel assembly includes a second wire feeding gear, and the second wire feeding wheel is fixedly arranged coaxially with the second wire feeding gear and is rotatably arranged on the second bracket;

[0025] The second pressure wheel assembly includes a second pressure wheel gear, and the second pressure wheel and the second pressure wheel gear are fixedly arranged coaxially and rotatably arranged on the second bracket;

[0026] The second wire feeding gear is meshed and connected to the second pressure wheel gear, and the driving gear is meshed and connected to the second wire feeding gear.

[0027] Preferably, the first pressure wheel assembly further includes a first pressure wheel shell and a first pressure wheel shaft.

[0028] 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.

[0029] 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.

[0030] The first pressure wheel shaft is provided with a first snap ring, and the first snap 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.

[0031] Preferably, the first pressure wheel shaft comprises a first pressure wheel shaft body,

[0032] 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 notch of the first clamping groove.

[0033] Preferably, 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.

[0034] 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.

[0035] Preferably, it further includes a first buckle, a first pressure regulator and a guide tap,

[0036] The guide tap is provided at the input end of the first wire feeding part or the second wire feeding part.

[0037] The first buckle is hinged to the first bracket to lock the wire guide tube of the guide tap or welding gun joint.

[0038] The first pressure regulator is provided 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 portion.

[0039] 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 guide tap can also be adjusted, which can greatly reduce the friction force on the welding wire, making the wire feeding operation easier, smoother and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and other purposes, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally scaled to actual size, but rather are intended to illustrate the subject matter of the present application.

[0041] Figure 1 A schematic diagram of the overall structure of a new wire feeding device provided in an embodiment of the utility model;

[0042] Figure 2 for Figure 1 Front view of

[0043] Figure 3 An exploded schematic diagram of a novel wire feeding device provided in an embodiment of the present utility model;

[0044] Figure 4 An exploded schematic diagram of a first wire feeding mechanism provided in an embodiment of the present utility model;

[0045] Figure 5 An exploded schematic diagram of the second wire feeding mechanism provided in an embodiment of the present utility model;

[0046] Figure 6 This is a schematic exploded view of the first pressure wheel assembly provided in an embodiment of the present utility model.

[0047] In the picture:

[0048] 100. Driving mechanism; 110. Driving shaft;

[0049] 200, first wire feeding mechanism; 210, first bracket; 211, first hinge hole; 220, first pressure roller assembly; 221, first pressure roller; 222, first pressure roller gear; 230, first wire feeding roller assembly; 231, first wire feeding roller; 232, first wire feeding gear; 233, first pressure roller housing; 2331, first accommodating groove; 2332, first clamping groove; 234, first pressure roller shaft; 2341, first clamping ring; 2342, first pressure roller shaft body; 240, first wire feeding unit;

[0050] 300, second wire feeding mechanism; 310, second bracket; 311, second hinge hole; 320, second pressure roller assembly; 321, second pressure roller; 322, second pressure roller gear; 330, second wire feeding roller assembly; 331, second wire feeding roller; 332, second wire feeding gear; 333, second pressure roller housing; 3332, second retaining groove; 334, second pressure roller shaft; 3341, second retaining ring; 3342, second pressure roller shaft body; 340, second wire feeding unit;

[0051] 400, driving gear;

[0052] 500, central wire guide tube; 510, first central wire guide tube positioning piece; 520, second central wire guide tube positioning piece;

[0053] 600, guide tap;

[0054] 700, mounting plate; 710, through hole; 720, bearing;

[0055] 800, first buckle; 810, second buckle;

[0056] 900, first pressure regulator; 910, second pressure regulator. DETAILED DESCRIPTION

[0057] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0058] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this document pertains. The terms used in this specification are for the purpose of describing specific embodiments only 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.

[0060] The following combination Figures 1 to 6 It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any limitation to the present invention.

[0061] See Figures 1 to 6 An embodiment of the present invention provides a new 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.

[0062] 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.

[0063] 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 .

[0064] 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 feed the welding wire. The welding wire passes through the wire groove on the first wire feeding wheel 231 and is pressed 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.

[0065] 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 .

[0066] 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 part 340, which can clamp and convey the welding wire output from the first wire feeding part 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.

[0067] The driving shaft 110 is transmission-connected to the first wire feeding wheel 231 and the second wire feeding wheel 331 for driving the first wire feeding wheel 231 and the second wire feeding wheel 331 to rotate.

[0068] The first bracket 210 and / or the second bracket 310 are hinged to the drive shaft 110, so that the first wire feeding mechanism 200 and / or the second wire feeding mechanism 300 can rotate around the drive 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 drive shaft of the drive motor.

[0069] In addition, the wire feeding device also includes a driving gear 400. The driving gear 400 is fixed to 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.

[0070] The driving mechanism 100 is fixed to the mounting plate 700 , and the first wire feeding mechanism 200 and the second wire feeding mechanism 300 are both movably connected to the mounting plate 700 , thereby ensuring the stability of wire feeding.

[0071] The central wire guide tube 500 is located between the first wire feeding part 240 and the second wire feeding part 340. The welding wire can pass through the first wire feeding part 240, the central wire guide tube 500 and the second wire feeding part 340 in sequence to prevent the welding wire from jumping when being transported from the first wire feeding part 240 to the second wire feeding part 340, thereby improving the stability of wire feeding.

[0072] 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 provision of the wire guide tap 600 can further improve the stability of wire feeding.

[0073] 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.

[0074] 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 drive shaft 110 through the first hinge hole 211, and the second wire feeding mechanism 300 is hinged to the drive 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 drive 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 drive shaft 110 at a certain angle, for example: 15°; so that the guide wire entering 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 close to 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.

[0075] 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 hingedly connecting the first wire feeding mechanism 200 to the drive shaft 110 through the first hinge hole 211, and hingedly connecting the second wire feeding mechanism 300 to the drive 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 drive 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 tap 600 can also be adjusted, which can greatly reduce the friction force on the welding wire and make the wire feeding operation easier, smoother and more stable.

[0076] 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 .

[0077] The two ends of the central wire guide tube 500 are respectively mounted 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 and prevent it from loosening during the welding wire feeding process. 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, so that 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, making it easier to adjust the introduction angle between the welding wire and the guide taper 600, further improving the stability and smoothness of the welding wire feeding.

[0078] 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 further includes a mounting plate 700 , and a through hole 710 is provided on the mounting plate 700 .

[0079] 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.

[0080] When the driving shaft 110 of the driving mechanism 100 rotates, it can drive the driving gear 400 located on the second side of the mounting plate 700 to rotate, thereby driving the first wire feeding wheel 231 and the second wire feeding wheel 331 to rotate in the same direction to feed the welding wire.

[0081] In other words, the drive motor is fixed to the mounting plate 700, and the first wire feed mechanism 200 and the second wire feed mechanism 300 are both hinged to the motor output shaft of the drive motor. When the new wire feeder is to be installed in an electric welding machine, it is only necessary to align the mounting holes on the mounting plate 700 with the mounting holes pre-set on the welding machine according to the installation drawings, adjust the position, and tighten the mounting bolts.

[0082] 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 drive 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 fixed on the drive shaft 110 through its inner ring, and the bearing 720 is fixed to the second hinge hole 311 through its outer ring.

[0083] 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 fixed and rotatably arranged on the first bracket 210 .

[0084] The first pressure roller assembly 220 includes a first pressure roller gear 222. The first pressure roller 221 and the first pressure roller gear 222 are coaxially fixed and rotatably mounted on the first bracket 210. Of course, in some embodiments, the first pressure roller assembly 220 may not be equipped with the first pressure roller gear 222. Instead, the first pressure roller 221 compresses the welding wire and rotates with the rotation of the first wire feed roller 231.

[0085] The first wire feed gear 232 is meshed and transmission-connected with the first pressure roller gear 222, and the drive gear 400 is meshed and transmission-connected with the first wire feed gear 232. When the drive gear 400 rotates clockwise, the first wire feed gear 232 also rotates clockwise, thereby driving the first pressure roller gear 222 to rotate counterclockwise, enabling the first wire feed portion 240 formed between the opposed first pressure roller 221 and the first wire feed roller 231 to feed the welding wire in the first direction. This clever use of gear transmission simplifies the structure of the first wire feed mechanism 200, thereby reducing manufacturing and maintenance costs.

[0086] 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.

[0087] 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 .

[0088] The second pressure roller assembly 320 includes a second pressure roller gear 322. The second pressure roller 321 and the second pressure roller gear 322 are coaxially fixed and rotatably mounted on the second bracket 310. Of course, in some embodiments, the second pressure roller assembly 320 may not be equipped with the second pressure roller gear 322. Instead, the second pressure roller 321 compresses the welding wire and rotates with the rotation of the second wire feed roller 331.

[0089] The second wire feed gear 332 is meshed and transmission-connected with the second pressure roller gear 322, and the drive gear 400 is meshed and transmission-connected with the second wire feed gear 332. When the drive gear 400 rotates clockwise, the second wire feed gear 332 rotates counterclockwise, thereby driving the second pressure roller gear 322 to rotate clockwise, enabling the second wire feed portion 340 formed between the opposed second pressure roller 321 and the second wire feed roller 331 to feed the welding wire in the first direction. This clever use of gear transmission simplifies the structure of the second wire feed mechanism 300, thereby reducing manufacturing and maintenance costs.

[0090] Combine Figure 6 Of course, in some embodiments of the present invention, the first paddle wheel assembly 220 further includes a first paddle wheel shell 233 and a first paddle wheel shaft 234 .

[0091] 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 .

[0092] 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 .

[0093] The first pressure roller shaft 234 is provided with a first snap ring 2341, which is rotatably locked with the first retaining groove 2332 to limit the axial movement of the first pressure roller shaft 234 when it extends into the first receiving groove 2331. This makes the installation and removal of the first pressure roller 221 and the first pressure roller gear 222 more convenient and quick.

[0094] 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 to unlock the first retaining ring 2341 with the first retaining groove 2332, and the disassembly is completed, which is convenient and quick.

[0095] Specifically, in some embodiments of the present invention, the first pressure wheel shaft 234 includes a first pressure wheel shaft body 2342 .

[0096] 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 retaining groove 2332. This ensures that the first snap ring 2341 and the first retaining groove 2332 do not interfere with each other when unlocking, further facilitating and speeding up the removal of the first pressure wheel 221 and the first pressure wheel gear 222.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] Of course, in some embodiments of the present invention, the radius of the first snap ring 2341 in 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 in 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.

[0102] In addition, since the second wire feeding mechanism 300 and the first wire feeding mechanism 200 are arranged symmetrically, the second pressure wheel assembly 320 and the first pressure wheel assembly 220 can also be arranged symmetrically.

[0103] That is, the second paddle wheel assembly 320 also includes a second paddle wheel shell 333 and a second paddle wheel shaft 334 .

[0104] 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.

[0105] The second pressure wheel shaft 334 includes a second pressure wheel shaft body 3342 . The second snap ring 3341 protrudes from the second pressure wheel shaft body 3342 , and the arc length of the second snap ring 3341 is less than or equal to the arc length of the notch of the second clamping groove 3332 .

[0106] The relationship between the various components in the second paddle wheel assembly 320 is consistent with the relationship between the various components in the first paddle wheel assembly 220, and will not be repeated here.

[0107] In some embodiments of the present invention, the novel wire feeding device further includes a first clip 800 and a first pressure regulator 900 .

[0108] The first clip 800 is hinged to the first bracket 210 and can lock the wire guide tube of the guide tap 600 or the welding gun connector. For example, when the wire guide tube of the welding gun connector needs to be installed corresponding to the first wire feeder, the first clip 800 can be rotated in a first direction about the hinge axis with the first bracket 210 to lock the wire guide tube of the welding gun connector and prevent it from loosening. When the wire guide tube of the welding gun connector needs to be removed from the first wire feeder, the first clip 800 can be rotated in a second direction about the hinge axis with the first bracket 210 to release the lock on the wire guide tube of the welding gun connector, thereby facilitating the installation and removal of the wire guide tube of the welding gun connector.

[0109] The first pressure regulator 900 is disposed on the first pressure wheel housing 233 , and can adjust the pressure exerted by the first pressure wheel 221 on the welding wire located in the first wire feeding portion 240 .

[0110] In addition, since the second wire feeding mechanism 300 is arranged symmetrically with the first wire feeding mechanism 200 , the novel wire feeding device further includes a second buckle 810 and a second pressure regulator 910 .

[0111] The second clip 810 is hinged to the second bracket 310 and can lock the wire guide tube of the guide tap 600 or the welding gun connector. For example, when the guide tap 600 needs to be installed corresponding to the second wire feeder, the second clip 810 can be rotated in a first direction about its hinge axis with the second bracket 310 to guide the guide tap 600 and prevent it from loosening. When the guide tap 600 needs to be removed from the second wire feeder, the second clip 810 can be rotated in a second direction about its hinge axis with the second bracket 310 to release the lock on the guide tap 600, facilitating installation and removal of the guide tap 600.

[0112] The second pressure regulator 910 is provided on the second pressure wheel housing 333 , and can adjust the pressure exerted by the second pressure wheel 321 on the welding wire in the second wire feeding portion 340 .

[0113] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0114] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "some embodiments", "other embodiments" or "specific example" 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 expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0115] 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: The 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, The first pressing wheel and the first wire feeding wheel are arranged to rotate relative to each other to form a first wire feeding portion; 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, The second pressing wheel and the second wire feeding wheel are arranged to rotate relative to each other to form a second wire feeding portion; a mounting plate, wherein the first wire feeding mechanism and the second wire feeding mechanism are both movably connected to the mounting plate; A driving mechanism having a driving shaft, wherein the driving shaft is in transmission connection with the first wire feeding wheel and the second wire feeding wheel, and is used to drive the first wire feeding wheel and the second wire feeding wheel to rotate, and the driving mechanism is fixed to the mounting plate; a driving gear fixed to the driving shaft, wherein the driving gear is arranged between the first wire feeding wheel and the second wire feeding wheel; 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. The first bracket is provided with a first hinge hole, the second bracket is provided with a second hinge hole, the first hinge hole and the second hinge hole are coaxially arranged, the first wire feeding mechanism is hinged to the drive shaft through the first hinge hole, and the second wire feeding mechanism is hinged to the drive shaft through the second hinge hole.

2. The novel wire feeding device according to claim 1, 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, characterized in that: 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, characterized in that: Also includes a bearing, 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, characterized in that: The first wire feeding wheel assembly includes 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, the first pressure wheel and the first pressure wheel gear are coaxially fixed 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 includes 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 and the second pressure wheel gear are fixedly arranged coaxially and rotatably arranged on the second bracket; The second wire feeding gear is meshed and connected to the second pressure wheel gear, and the driving gear is meshed and connected to the second wire feeding gear.

7. The novel wire feeding device according to claim 6, characterized in that: The first pressure wheel assembly further 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 snap ring, and the first snap 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 notch of the first clamping groove.

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 tap is provided 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. The first pressure regulator is provided 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 portion.

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