Portable argon arc welding automatic wire feeding device
By designing a portable argon arc welding automatic wire feeding device, the wire feeding motor drives the active wire feeding wheel to rotate, and in combination with the driven wire feeding wheel to clamp the welding wire, the automatic wire feeding of the welding wire is achieved, solving the problem of labor-intensive and poor accuracy of welding wire feeding in the prior art, and achieving labor-saving, convenient and accurate delivery of the welding wire.
Patent Information
- Application Number
- CN202421166233.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-27
AI Technical Summary
In the existing argon arc welding technology, the wire feeding is labor-intensive and has poor accuracy, making it difficult to accurately and reliably deliver to the designated position.
A portable argon arc welding automatic wire feeding device is designed, including a handle, an active wire feeding wheel, an driven wire feeding wheel and a drive wire feeding motor. The active wire feeding wheel is driven to rotate through the wire feeding motor, and the driven wire feeding wheel clamps the welding wire to realize the automatic translation wire feeding of the welding wire.
The welding wire is labor-saving, convenient and accurate in delivering to the welding position, and solves the problem of manual wire feeding and poor accuracy.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to electric welding equipment, in particular to a portable argon arc welding automatic wire feeding device. Background Art
[0002] Argon arc welding is a welding technology that uses argon as a shielding gas. It is also called argon gas shielded welding. It is to pass argon shielding gas around the arc welding to isolate the air outside the welding area to prevent oxidation of the welding area.
[0003] Argon arc welding technology is a welding technology based on the principle of ordinary arc welding. It uses argon gas to protect metal welding materials. Through high current, the welding materials are melted into liquid on the base material to form a molten pool, so that the metal to be welded and the welding materials can achieve metallurgical bonding. Since argon gas is continuously supplied during high-temperature molten welding, the welding materials cannot contact with oxygen in the air, thereby preventing the oxidation of the welding materials. Therefore, stainless steel and iron hardware metals can be welded. In the existing argon arc welding, the welding wire is manually delivered to the welding part, which is laborious and cannot accurately and reliably deliver the welding wire to the designated position. Utility Model Content
[0004] The utility model aims to provide a portable argon arc welding automatic wire feeding device which can conveniently and labor-savingly feed the welding wire to the welding position, thereby solving the problem that manual feeding of the welding wire in argon arc welding is labor-intensive and has poor accuracy.
[0005] The above technical problems are solved by the following technical solutions: A portable argon arc welding automatic wire feeding device, comprising a shell with a handle, the shell is provided with a transverse wire outlet hole for the welding wire to pass through, an active wire feeding wheel, a driven wire feeding wheel and a wire feeding motor for driving the active wire feeding wheel to rotate are arranged in the shell, the active wire feeding wheel cooperates with the driven wire feeding wheel to clamp the welding wire and drive the welding wire to translate in the wire outlet hole, and a switch for controlling the wire feeding motor is provided on the shell. When in use, hold the handle, start the wire feeding motor and adjust the speed of the wire feeding motor through the switch, the wire feeding motor drives the active wire feeding wheel to rotate, and when the active wire feeding wheel rotates, it drives the driven wire feeding wheel to rotate together, so that the welding wire passes through one end of the wire outlet hole and is output from the other end, thereby realizing automatic wire feeding of the welding wire. Wire feeding is labor-saving, convenient and accurate.
[0006] Preferably, a driving gear is provided on the power output shaft of the wire feeding motor, one end of the driving wire feeding wheel is provided with a driving wire feeding wheel gear, and the other end is provided with a connecting block, one end of the driven wire feeding wheel is provided with a driven wire feeding wheel gear meshed with the driving wire feeding wheel gear, and the other end is connected to the connecting block, and the driving gear meshes with the driving wire feeding wheel gear. The drive is reliable.
[0007] Preferably, the connection block can be rotatably connected to the automatic wire feeding wheel with the axis of the active wire feeding wheel as the axis, the driven wire feeding wheel is rotatably connected to the connection block, and the connection block is provided with an adjustment knob exposed from the housing for driving the connection block to rotate. When in use, the adjustment knob is rotated to change the active wire feeding wheel to cooperate with the driven wire feeding wheel to clamp and reliably transport welding wires of different sizes, and the versatility is good.
[0008] Preferably, the active wire feeding wheel is provided with a row of booster pins, which are distributed along the circumference of the active wire feeding wheel, and the resistance pins and the wire outlet through hole are located on the same plane, which can improve the reliability of feeding the welding wire and prevent slipping.
[0009] Preferably, the resistance pin extends radially along the active wire feeding wheel, and the active wire feeding wheel is provided with an inner circular hole coaxial with the active wire feeding wheel, and two conical heads with opposite tips are slidably connected in the inner circular hole, and the two conical heads are connected together with the conical head separation and combination mechanism, and the conical surfaces of the two conical heads abut against the two ends of a plurality of connecting strips distributed along the circumference of the active wire feeding wheel, and the number of connecting strips is equal to the number of assisting pins, and the connecting strips are aligned one-to-one with the assisting pins, and the outer end of the assisting pin can be telescopically inserted into the active wire feeding wheel, and the inner end is inserted one-to-one into the guide hole on the connecting strip, and the assisting pin is provided with a supporting protrusion located in the inner circular hole, and the assisting pin is inserted into the driving assisting lifting spring, and one end of the lifting spring abuts against the supporting protrusion, and the other end abuts against the connecting strip. When in use, it is more necessary to change the output length of the assist bar so that the clamping force meets the protection requirements and the clamping force can be kept constant. When the clamping force does not meet the requirements due to wear, the conical plug separation and closing mechanism drives the two conical plugs to close so that the extended length of the assist plug meets the requirements, and the extended length of the assist pin is changed without changing the contraction amount of the spring, so that the clamping force can be maintained unchanged. When the surface of the welding wire is uneven, the wire can be fed reliably without causing excessive wear of the assist pin.
[0010] Preferably, a dynamometer is also included, the dynamometer includes a dynamometer body and a dynamometer head, the dynamometer head is extended and retracted toward the active wire feeding wheel along the extension direction of the booster pin, an arc plate extending along the circumference of the active wire feeding wheel is provided at one end of the dynamometer head away from the dynamometer body, and guide slopes are provided at both ends of the arc plate to guide the booster pin to shrink and move to the inner circumference of the arc plate when the booster pin approaches the arc plate, and when the booster pin abuts against the inner circumference of the arc plate, the dynamometer head is in a contracted state due to the extrusion force of the booster pin. When in use, the reading of the dynamometer is used to judge the amount of wear on the booster pin. When the wear amount is greater than the requirement, the reading of the dynamometer is less than the set value.
[0011] Preferably, the conical plug opening and closing mechanism comprises a double-headed motor and two threaded holes arranged on two conical heads, the two heads of the double-headed motor are threadedly connected in the two threaded holes one by one, and the thread directions of the two threaded holes are opposite. The components are convenient, and the edge adjusts the opening and closing of the conical plug.
[0012] Preferably, the circumferential surface of the conical plug is provided with a plurality of positioning slots extending along the generatrix direction of the conical plug and distributed along the circumference of the conical plug, and the connecting strips are correspondingly inserted into the positioning slots, so as to prevent the connecting strips from falling off during rotation.
[0013] Preferably, an annular groove extending along the circumference of the active wire feeding wheel is provided on the outer peripheral surface of the active wire feeding wheel, and the booster pin is located in the annular groove, so as to realize the positioning and conveying of the welding wire more reliably.
[0014] Preferably, the wire outlet hole includes two sections, and the active wire feeding wheel is located between the two sections, so that forward and reverse wire feeding can be performed reliably.
[0015] Preferably, a wire outlet tube is fixed in the wire outlet through hole to prevent wear.
[0016] The utility model has the following advantages: the welding wire can be conveniently and accurately delivered to the welding position. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the first embodiment of the utility model after the outer shell is removed;
[0018] Figure 2 This is a schematic diagram of the first embodiment of the present utility model;
[0019] Figure 3 It is a cross-sectional schematic diagram of the active wire feeding wheel of the second embodiment of the utility model;
[0020] Figure 4 is a schematic cross-sectional view of the active wire feeding wheel in the second embodiment;
[0021] Figure 5 for Figure 3 A local enlarged schematic diagram of point A.
[0022] In the figure: handle 1, housing 2, welding wire 3, wire outlet hole 4, wire outlet tube 5, active wire feeding wheel 6, driven wire feeding wheel 7, wire feeding motor 8, switch 9, active gear 10, active wire feeding wheel gear 11, connecting block 12, driven wire feeding wheel gear 13, adjusting knob 14, booster pin 15, annular groove 16, inner hole 17, conical plug 18, conical plug separation and combination mechanism 19, end wall 20 of active wire feeding wheel, stop pin 21, conical surface 22 of conical plug, connecting strip 23, positioning slide groove 24, supporting protrusion 25, lifting spring 26, dynamometer 27, dynamometer body 28, dynamometer head 29, arc plate 30, guide slope 31, double-headed motor 32, threaded hole 33, reversing switch 34. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Example 1, see Figure 1 and Figure 2 A portable argon arc welding automatic wire feeding device comprises a housing 2 with a handle 1. The housing is provided with a transverse wire outlet hole 4 for a welding wire 3 to pass through. The wire outlet hole comprises two sections, and a wire outlet tube 5 is fixed in the wire outlet hole.
[0025] An active wire feeding wheel 6, a driven wire feeding wheel 7 and a wire feeding motor 8 for driving the active wire feeding wheel to rotate are arranged in the housing. The active wire feeding wheel cooperates with the driven wire feeding wheel to clamp the welding wire and drive the welding wire to translate in the wire outlet hole. The active wire feeding wheel is located between the two sections. A switch 9 for controlling the wire feeding motor is arranged on the housing. A driving gear 10 is arranged on the power output shaft of the wire feeding motor, one end of the active wire feeding wheel is provided with an active wire feeding wheel gear 11, and the other end is provided with a connecting block 12, and one end of the driven wire feeding wheel is provided with a driven wire feeding wheel gear 13 meshed with the active wire feeding wheel gear, and the other end is rotatably connected with the connecting block. The active gear meshes with the active wire feeding wheel gear. The connecting block can be rotatably connected with the automatic wire feeding wheel with the axis of the active wire feeding wheel as the axis. An adjusting knob 14 is provided on the connecting block, which is exposed in the housing and drives the connecting block to rotate. A reversing switch 34 for adjusting the forward and reverse rotation of the wire feeding motor is also arranged on the housing.
[0026] When in use, hold the handle, start the wire feeding motor and the wire feeding motor speed adjustment through the switch, the wire feeding motor drives the active wire feeding wheel to rotate, and when the active wire feeding wheel rotates, it drives the driven wire feeding wheel to rotate together, so that the welding wire enters from one end of the wire outlet hole and is output from the other end, realizing automatic wire feeding of the welding wire. The positive direction switch controls the forward and reverse rotation of the wire feeding motor to realize the delivery and retraction of the welding wire. By adjusting the rotation, the driven wire feeding wheel is driven to rotate with the active wire feeding wheel as the axis, so that welding wires of different sizes can also be clamped and delivered.
[0027] Embodiment 2 is different from Embodiment 1 in that:
[0028] See also Figures 3 to 5 , a row of booster pins 15 are provided on the active wire feeding wheel. The booster pins are distributed along the circumference of the active wire feeding wheel, and the resistance pin and the wire outlet hole are located on the same plane. An annular groove 16 extending along the circumference of the active wire feeding wheel is provided on the outer circumferential surface of the active wire feeding wheel, and the booster pin is arranged in the annular groove. The resistance pin extends radially along the active wire feeding wheel. An inner circular hole 17 of a linear structure coaxial with the active wire feeding wheel is provided in the active wire feeding wheel. Two conical heads 18 with opposite tips are slidably connected in the inner circular hole, and the two conical heads are connected to the conical head separation and combination mechanism 19. A stop pin 21 is provided on the end wall 20 of the active wire feeding wheel and is penetrated by the conical head. The stop pin extends along the axial direction of the active wire feeding wheel. The conical surfaces 22 of the two conical heads abut against the two ends of a number of connecting strips 23 distributed along the circumference of the active wire feeding wheel. The circumferential surface of the conical plug is provided with a plurality of positioning grooves 24 extending along the generatrix direction of the conical plug and distributed along the circumference of the conical plug, and the connecting strips are correspondingly inserted into the positioning grooves. The number of connecting strips is equal to the number of booster pins, and the connecting strips are aligned one by one with the booster pins. The outer ends of the booster pins can be telescopically inserted into the active wire feeding wheel, and the inner ends are correspondingly inserted into the guide holes on the connecting strips. The booster pins are provided with support protrusions 25 located in the inner circular holes, and the booster pins are inserted into the driving auxiliary lifting springs 26, one end of the lifting springs abuts against the support protrusions, and the other end abuts against the connecting strips. When in use, the output length of the booster strips is changed as needed to meet the clamping force protection requirements, and the clamping force can be kept constant. When the clamping force does not meet the requirements due to wear, the two conical plugs are driven to close together through the conical plug separation and combination mechanism so that the extended length of the booster plugs meets the requirements, and the extended length of the booster pins is changed without changing the contraction amount of the spring, so that the clamping force can be maintained unchanged.
[0029] It also includes a dynamometer 27, which includes a dynamometer body 28 and a dynamometer head 29. The dynamometer head is retracted along the extension direction of the booster pin toward the active wire feeding wheel. The end of the dynamometer head away from the dynamometer body is provided with an arc plate 30 extending along the circumference of the active wire feeding wheel. Both ends of the arc plate are provided with guide slopes 31 that guide the booster pin to shrink and move to the inner circumference of the arc plate when the booster pin approaches the arc plate. When the booster pin abuts against the inner circumference of the arc plate, the dynamometer head receives the extrusion force of the booster pin and is in a contracted state, that is, it is in a compressed state and is powerful. During use, when wear occurs, the length of the booster pin output becomes shorter, thereby reducing the force driving the dynamometer. At this time, the amount of wear of the booster pin is judged based on the reading of the dynamometer. When the wear amount is greater than the requirement, the reading of the dynamometer is less than the set value.
[0030] The conical mandrel separation and combination mechanism comprises a double-headed motor 32 and two threaded holes 33 arranged on two conical heads. The two heads of the double-headed motor are threadedly connected in the two threaded holes one by one, and the thread directions of the two threaded holes are opposite.
[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A portable argon arc welding automatic wire feeding device, characterized in that: The invention comprises a shell with a handle, wherein the shell is provided with a transverse wire outlet hole for the welding wire to pass through, wherein an active wire feeding wheel, a driven wire feeding wheel and a wire feeding motor for driving the active wire feeding wheel to rotate are arranged in the shell, the active wire feeding wheel cooperates with the driven wire feeding wheel to clamp the welding wire and drives the welding wire to translate in the wire outlet hole, and a switch for controlling the wire feeding motor is arranged on the shell.
2. A portable argon arc welding automatic wire feeding device according to claim 1, characterized in that: A driving gear is provided on the power output shaft of the wire feeding motor, one end of the driving wire feeding wheel is provided with a driving wire feeding wheel gear, and the other end is provided with a connecting block, one end of the driven wire feeding wheel is provided with a driven wire feeding wheel gear meshing with the driving wire feeding wheel gear, and the other end is connected to the connecting block, and the driving gear is meshed with the driving wire feeding wheel gear.
3. A portable argon arc welding automatic wire feeding device according to claim 2, characterized in that: The connecting block can be rotatably connected to the automatic wire feeding wheel with the axis of the active wire feeding wheel as the axis, and the driven wire feeding wheel is rotatably connected to the connecting block. The connecting block is provided with an adjusting knob exposed from the shell for driving the connecting block to rotate.
4. A portable argon arc welding automatic wire feeding device according to claim 2 or 3, characterized in that: The active wire feeding wheel is provided with a row of booster pins, which are distributed along the circumference of the active wire feeding wheel, and the resistance pins and the wire outlet through holes are located on the same plane.
5. A portable argon arc welding automatic wire feeding device according to claim 4, characterized in that: The resistance pin extends radially along the active wire feeding wheel, and the active wire feeding wheel is provided with an inner circular hole coaxial with the active wire feeding wheel. Two conical heads with opposite tips are slidably connected in the inner circular hole. The two conical heads are connected with the conical head separation and combination mechanism. The conical surfaces of the two conical heads abut against the two ends of a plurality of connecting strips distributed along the circumference of the active wire feeding wheel. The number of connecting strips is equal to the number of boosting pins. The connecting strips are aligned with the boosting pins one-to-one. The outer end of the boosting pin can be telescopically inserted into the active wire feeding wheel, and the inner end is inserted into the guide hole on the connecting strip one-to-one. The boosting pin is provided with a supporting protrusion located in the inner circular hole. The boosting pin is inserted into a lifting spring that drives the boosting pin to extend out of the active wire feeding wheel. One end of the lifting spring abuts against the supporting protrusion, and the other end abuts against the connecting strip.
6. A portable argon arc welding automatic wire feeding device according to claim 5, characterized in that: It also includes a dynamometer, which includes a dynamometer body and a dynamometer head. The dynamometer head is retracted toward the active wire feeding wheel along the extension direction of the power-boosting pin. An arc plate extending along the circumference of the active wire feeding wheel is provided at one end of the dynamometer head away from the dynamometer body. Both ends of the arc plate are provided with guide inclined surfaces for guiding the power-boosting pin to contract and move to the inner circumferential surface of the arc plate when the power-boosting pin approaches the arc plate. When the power-boosting pin abuts against the inner circumferential surface of the arc plate, the dynamometer head is in a contracted state due to the extrusion force of the power-boosting pin.
7. The portable automatic wire feeding device for argon arc welding according to claim 5, characterized in that: The conical head separation and combination mechanism includes a double-headed motor and two threaded holes arranged on two conical heads. The two heads of the double-headed motor are threadedly connected in the two threaded holes in a one-to-one correspondence, and the thread directions of the two threaded holes are opposite.
8. The portable automatic wire feeding device for argon arc welding according to claim 5, characterized in that: A plurality of positioning slots extending along the generatrix direction of the conical plug and distributed along the circumference of the conical plug are arranged on the circumferential surface of the conical plug, and the connecting strips are passed through the positioning slots in a one-to-one correspondence.
9. The portable automatic wire feeding device for argon arc welding according to claim 5, characterized in that: An annular groove extending along the circumference of the active wire feeding wheel is provided on the outer peripheral surface of the active wire feeding wheel, and the booster pin is arranged in the annular groove.
10. A portable argon arc welding automatic wire feeding device according to claim 1, 2 or 3, characterized in that: A wire outlet tube is fixed in the wire outlet through hole.