Disclosure of Invention
The invention mainly aims to provide a welding wire fixing structure and aims to solve the problem that the existing welding wire disc can cause welding wire clamping stagnation.
In order to achieve the above object, the present invention provides a welding wire fixing structure, including:
the welding wire disc is rotatably arranged around a first rotating shaft extending along the horizontal direction and is used for winding a welding wire and driving the wound welding wire to pay off; and the number of the first and second groups,
the drawing assembly can be arranged in a reciprocating manner along a wire feeding direction close to or far away from the wire reel, the drawing assembly defines a clamping opening used for clamping a free end of the welding wire, the caliber of the clamping opening is adjustable, and the drawing assembly has a clamping state that the caliber is matched with the outer diameter of the free end of the welding wire and a loosening state that the caliber is larger than the outer diameter of the free end of the welding wire;
wherein, when the subassembly that draws moves in the direction that is keeping away from the wire reel, the grip opening is in the centre gripping state, when the subassembly that draws moves in the direction that is close to the wire reel, the grip opening is in unclamp the state.
Optionally, the pulling assembly comprises:
the sliding seat can be movably arranged along the wire feeding direction; and the number of the first and second groups,
the clamping piece is arranged on one side of the sliding seat, the clamping opening is limited between the clamping piece and the sliding seat, and the clamping piece can be movably arranged along the clamping direction close to or far away from the sliding seat, so that the caliber of the clamping opening can be adjusted.
Optionally, the welding wire fixing structure further includes:
a drive member having an output end;
one end of the first transmission component is in transmission connection with the output end, and the other end of the first transmission component is in transmission connection with the wire reel so as to enable the wire reel to rotate under the driving of the driving piece; and the number of the first and second groups,
and one end of the second transmission assembly is in transmission connection with the output end, and the other end of the second transmission assembly is in transmission connection with the clamping piece, so that the clamping piece can move under the driving of the driving piece.
Optionally, the output end comprises a rotating shaft;
the first transmission assembly includes:
the drive plate is arranged on the rotating shaft; and the number of the first and second groups,
the grooved wheel is coaxially arranged on the wire reel and matched with the driving plate so that the wire reel can rotate intermittently under the driving of the driving piece.
Optionally, the clamping direction is an up-down direction, and the clamping piece is located below the sliding seat;
the second transmission assembly includes:
the driving wheel is arranged on the rotating shaft;
the driven wheel is meshed with the driving wheel; and the number of the first and second groups,
and the cam is positioned below the clamping piece, is coaxially arranged with the driven wheel, and keeps sliding contact with the clamping piece on the peripheral side surface of the cam when the traction assembly reciprocates along the wire feeding direction.
Optionally, the second transmission assembly further includes a first gear and a second gear coaxially mounted, a pitch of the first gear is smaller than a pitch of the second gear, the first gear is engaged with the driving wheel, and the second gear is engaged with the driven wheel.
Optionally, the driving wheel is an incomplete gear, and a locking arc of the incomplete gear corresponds to a locking arc of the driving plate.
Optionally, the peripheral side surface of the cam includes a first peripheral side surface and a second peripheral side surface, a distance from the axial center of the cam to the first peripheral side surface is smaller than a distance from the axial center of the cam to the second peripheral side surface, and a central angle of the first peripheral side surface is equal to a central angle of the second peripheral side surface.
Optionally, the welding wire fixing structure further comprises a slide rail extending along the wire feeding direction;
the sliding seat can be mounted on the sliding rail in a sliding mode along the wire feeding direction.
Optionally, a groove for placing a part of the free end of the welding wire is formed on one side of the sliding seat facing the clamping piece, and the groove extends along the wire feeding direction.
In the technical scheme of the invention, the wire reel is rotatably arranged, when surfacing welding is needed, firstly, the wire reel rotates to pay out the welding wire, then, the caliber of the clamping opening is adjusted to the clamping state, the clamping opening clamps the free end of the welding wire, meanwhile, the traction assembly moves in the direction far away from the wire reel, then the free end of the paid-out welding wire is pulled to be far away from the wire reel for subsequent surfacing welding, then, the caliber of the clamping opening is adjusted to the loosening state, the clamping opening does not clamp the free end of the welding wire, meanwhile, the traction assembly moves in the direction close to the wire reel, and finally, the traction assembly reaches the starting point of the moving stroke of the traction assembly in the direction far away from the wire reel, namely, the traction assembly clamps the free end of the welding wire and is far away from the wire reel, the subassembly that draws loosens the free end of welding wire and be close to the wire reel moves repeatedly, can realize giving out the free end of welding wire is constantly drawn and is kept away from the wire reel is in order to carry out follow-up build-up welding, so, the wire reel need not the welding wire drives the rotation to prevent the welding wire jamming.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
When surfacing, welding wires need to be fixed, in order to realize the fixation of the welding wires, a welding wire disc is usually wound in the existing mode, then the wound welding wires are continuously discharged by the welding wire disc, the welding wire disc is just placed near a welding operation place, the welding wires need to be discharged to drive the welding wire disc to rotate, sometimes, the welding wires are stuck due to the fact that the friction force between the welding wire disc and the ground is large, and accidents easily occur when people do not watch the welding wires.
In view of the above, the present invention provides a welding wire fixing structure, and fig. 1 to 2 show an embodiment of the welding wire fixing structure provided by the present invention.
Referring to fig. 1, the welding wire fixing structure 100 includes a wire reel 1 and a drawing component 2, the wire reel 1 is rotatably disposed around a first rotating shaft extending along a horizontal direction, and is used for winding a welding wire and driving the wound welding wire to pay off, the drawing component 2 is reciprocally movably disposed along a wire feeding direction approaching or departing from the wire reel 1, the drawing component 2 defines a clamping opening 6 for clamping a free end of the welding wire, a caliber of the clamping opening 6 is adjustable, and the clamping opening 6 has a clamping state in which the caliber is adapted to an outer diameter of the free end of the welding wire and a loosening state in which the caliber is larger than the outer diameter of the free end of the welding wire, wherein when the drawing component 2 moves along the direction departing from the wire reel 1, the clamping opening 6 is in the clamping state, and when the drawing component 2 moves along the direction approaching the wire reel 1, the clamping opening 6 is in the unclamped state.
In the technical scheme of the invention, by rotatably arranging the wire reel 1, when surfacing welding is required, firstly, the wire reel 1 rotates to pay out the welding wire, then, the caliber of the clamping port 6 is adjusted to the clamping state, the clamping port 6 clamps the free end of the welding wire, meanwhile, the traction assembly 2 moves in the direction away from the wire reel 1, then, the free end of the paid-out welding wire is pulled away from the wire reel 1 to carry out subsequent surfacing welding, then, the caliber of the clamping port 6 is adjusted to the loosening state, the clamping port 6 no longer clamps the free end of the welding wire, meanwhile, the traction assembly 2 moves in the direction towards the wire reel 1, and finally, the traction assembly 2 reaches the starting point of the moving stroke in the direction away from the wire reel 1, namely, the traction assembly 2 clamps the free end of the welding wire and moves away from the wire reel 1, traction assembly 2 loosens the free end of welding wire and is close to wire reel 1 moves repeatedly, can realize giving out the free end of welding wire is constantly pulled and is kept away from wire reel 1 is in order to carry out follow-up build-up welding, so, wire reel 1 need not the welding wire drives the rotation to prevent the welding wire jamming.
It should be noted that the welding wire fixing structure further comprises a guide roller (not shown in the figure), and the guide roller is used for revolving the welding wire to ensure the tensioning of the welding wire, so that the traction effect of the traction assembly 2 is improved.
Further, traction assembly 2 includes slide 21 and clamping piece 22, slide 21 can follow send a direction to set up movably, clamping piece 22 is installed one side of slide 21, and with inject between slide 21 centre gripping mouth 6, clamping piece 22 can be followed and is close to or keeps away from slide 21's centre gripping direction sets up movably, so that centre gripping mouth 6's bore is adjustable, specifically, please refer to fig. 1, in this embodiment, centre gripping mouth 6 is for following the clamping groove that the horizontal direction extends the setting, the clamping groove is the straight line shape, is favorable to making the welding wire is straighter after being pressed from both sides to improve build-up welding quality.
And, welding wire fixed knot constructs 100 still includes driving piece 3, first transmission assembly 4 and second transmission assembly 5, driving piece 3 has the output, the one end of first transmission assembly 4 with the output transmission is connected, the other end with wire reel 1 transmission is connected, so that wire reel 1 rotates under the drive of driving piece 3, the one end of second transmission assembly 5 with the output transmission is connected, the other end with clamping piece 22 transmission is connected, so that clamping piece 22 is in the activity under the drive of driving piece 3, so, utilize one driving piece 3 realizes simultaneously wire reel 1's rotation with the activity of clamping piece 22, the quantity of driving piece 3 is few, and the power cost is low.
Furthermore, the output includes the pivot, first drive assembly 4 includes catch plate 41 and sheave 42, catch plate 41 locates the pivot, sheave 42 coaxial arrangement in wire reel 1, sheave 42 with the cooperation of catch plate 41, so that wire reel 1 is in intermittent type rotates under the drive of driving piece 3, so, driving piece 3 utilizes sheave 42 with the intermittent type drive of catch plate 41 wire reel 1 has avoided wire reel 1 is in incessant rotation, has improved wire reel 1's life.
Further, the clamping direction is a vertical direction, the clamping member 22 is located below the sliding base 21, the second transmission assembly 5 includes a driving wheel 51, a driven wheel 52 and a cam 53, the driving wheel 51 is disposed on the rotating shaft, the driven wheel 52 is engaged with the driving wheel 51, the cam 53 is located below the clamping member 22, the cam 53 is disposed coaxially with the driven wheel 52, and a circumferential side surface of the cam 53 keeps sliding contact with the clamping member 22 when the pulling assembly 2 reciprocates along the wire feeding direction, specifically, referring to fig. 1, in this embodiment, the driven wheel 52 and the driving wheel 51 are both gears, the gear transmission structure is compact, the transmission is smooth, which helps to make the structure of the second transmission assembly 5 more compact and the work more reliable, and at the same time, the cam 53 slides contact with the clamping member 22 to drive the clamping member 22 to move upward along the clamping direction, the gripping member 22 then moves downwards in the gripping direction under the effect of gravity, and the cam 53 is of simple construction, contributing to a reduction in the design costs of the second transmission assembly 5.
In addition, the second transmission assembly 5 further includes a first gear 54 and a second gear 55 which are coaxially installed, the pitch of the first gear 54 is smaller than the pitch of the second gear 55, the first gear 54 is meshed with the driving wheel 51, the second gear 55 is meshed with the driven wheel 52, and the size of the largest gear of the gears is prevented from being too large through indirect transmission of the first gear 54 and the second gear 55, so that the volume of the welding wire fixing structure 100 is reduced.
It should be noted that, in this embodiment, the number of teeth of the driving wheel 51 is greater than that of the first gear 54, the number of teeth of the first gear 54 is less than that of the second gear 55, and the number of teeth of the second gear 55 is greater than that of the driven wheel 52, so that when the driving wheel 51 rotates one turn, the driven wheel 52 can rotate multiple turns along with the rotation, and further the cam 53 is driven to rotate multiple turns, which is helpful to improve the efficiency of drawing the welding wire.
Further, as the welding wires are wound on the wire reel 1 layer by layer, the paying-off speed is continuously changed when the wire reel 1 rotates, and the wire reel 1 is driven to rotate and the clamping piece 22 moves, so that the welding effect is poor due to the fact that the welding wires and the clamping piece 22 are difficult to keep consistent in step. For this reason, in the present embodiment, the driver 51 is an incomplete gear, and a lock arc of the incomplete gear is provided corresponding to a lock arc of the dial 41. The specific working steps of the first transmission assembly 4 and the second transmission assembly 5 are as follows: firstly, the driving member 3 drives the incomplete gear and the dial 41 to rotate simultaneously through the rotating shaft (this is the starting time, the locking arc of the incomplete gear starts to contact with the first gear 54 and does not drive the first gear 54, the dial 41 starts to dial the grooved wheel 42), the dial 41 drives the grooved wheel 42 to rotate, the grooved wheel 42 drives the wire reel 1 to rotate, after the wire reel 1 rotates for 0.25 weeks, the driving plate 41 is separated from the grooved wheel 42, the wire reel 1 stops rotating, at which point the wire reel 1 pays out 0.25 turns of the welding wire, and immediately thereafter, the incomplete gear continues to rotate until the non-locking arc of the incomplete gear contacts the first gear 54, the incomplete gear begins to rotate the first gear 54, thereby driving the cam 53 to rotate, and the cam 53 drives the clamping member 22 to move along the clamping direction. That is, the clamping member 22 starts to clamp the free end of the welding wire after the wire reel 1 discharges a part of the welding wire, which contributes to the improvement of the welding effect.
Further, the peripheral side surface of the cam 53 includes a first peripheral side surface 531 and a second peripheral side surface 532, a distance from the axial center of the cam 53 to the first peripheral side surface 531 is smaller than a distance from the axial center of the cam 53 to the second peripheral side surface 532, a center angle of the first peripheral side surface 531 (the center angle being a central angle between a circumference where each peripheral side surface is located and the axial center of the cam 53) is equal to a center angle of the second peripheral side surface 532, the second peripheral side surface 532 abuts against the clamp 22 so that the clamp 22 always clamps the free end of the welding wire when the slide 21 moves away from the wire reel 1 in the wire feeding direction, the first peripheral side surface 531 abuts against the clamp 22 so that the clamp 22 releases the free end of the welding wire when the slide 21 moves closer to the wire reel 1 in the wire feeding direction, in this way, the reliability of the traction assembly 2 is facilitated to be improved.
The welding wire fixing structure 100 further includes a slide rail 23, the slide rail 23 extends along the wire feeding direction, the slide base 21 is slidably mounted on the slide rail 23 along the wire feeding direction, and the slide base 21 is slidably mounted, specifically, in this embodiment, referring to fig. 1, the slide base 21 is disposed on a slide plate 24, and the slide plate 24 is slidably mounted on the slide rail 23, which is beneficial to making the slide base 21 move more stably.
Referring to fig. 1 and 2, a groove 211 for receiving a portion of the free end of the welding wire is formed on a side of the slide 21 facing the clamping member 22, and the groove 211 extends in the wire feeding direction, so as to provide a guiding function for the welding wire while preventing the welding wire from being separated from the drawing assembly 2.
It should be noted that the welding wire fixing structure 100 further includes a cleaning member 25, the cleaning member 25 is located on a side of the slide base 21 facing the clamping member 22, and the cleaning member 25 is in contact with a free end of the welding wire, so as to help to clean dust on the welding wire, thereby improving the welding effect.
It should be noted that the present invention is not limited to the specific embodiment of the cleaning member 25, and may be a brush, sponge, etc.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.