Welding device and welding method

Abstract

The invention belongs to the technical field of steel bar machining, and discloses a welding device and a welding method.The welding device comprises a fixed seat, an adjusting seat, a fixed electrode, a driving mechanism and a movable electrode, the fixed seat is provided with an arc-shaped sliding rail, the adjusting seat can slide along the sliding rail to conduct orientation adjustment, and the adjusting seat is provided with a wire inlet hole; the fixed electrode is installed on the adjusting base, the driving mechanism is installed on the adjusting base, the movable electrode is installed at the output end of the driving mechanism, a steel bar penetrating through the wire inlet hole is located between the fixed electrode and the movable electrode, the driving mechanism can drive the movable electrode to move towards the fixed electrode, and the welding device is used in the welding method. According to the stirrup welding device, the fixed seat with the arc-shaped sliding rail is small in occupied space, the adjusting seat can drive the fixed electrode, the driving mechanism and the movable electrode to conduct position adjustment along the sliding rail, welding position adjustment is more flexible and convenient, the machining cost is reduced, and the welding requirements of stirrups of various sizes and shapes can be met.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar processing, and in particular to a welding device and a welding method. Background Art

[0002] The existing welding devices for longitudinal reinforcement and stirrups are difficult to adjust the welding position, and usually need to be driven by a driving mechanism such as a robot to meet the welding requirements of stirrups of various sizes and shapes. They occupy a large space and have high processing costs. Summary of the invention

[0003] The object of the present invention is to provide a welding device and a welding method, which occupy a small volume and can flexibly and conveniently adjust the welding direction.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Welding device, comprising:

[0006] A fixed seat, wherein the fixed seat is provided with an arc-shaped sliding track;

[0007] An adjustment seat, the adjustment seat can slide along the sliding track to adjust the position, and the adjustment seat is provided with a wire entry hole;

[0008] A fixed electrode, mounted on the adjustment seat;

[0009] A driving mechanism, mounted on the adjustment seat;

[0010] The movable electrode is installed at the output end of the driving mechanism, the steel bar passing through the wire entry hole is located between the fixed electrode and the movable electrode, and the driving mechanism can drive the movable electrode to move toward the fixed electrode.

[0011] Preferably, the sliding track comprises two coaxially arranged arc-shaped rails, and the adjustment seat can slide along the two arc-shaped rails.

[0012] Preferably, it further includes a fastener, the arc rail is a long hole, the fastener is inserted into the long hole and is screwed to the adjustment seat, the fastener has a fastened state and a released state, when the fastener is in the fastened state, the fixed seat is clamped between the adjustment seat and the head of the fastener, when the fastener is in the released state, the adjustment seat can slide along the arc rail.

[0013] Preferably, the fixing seat is provided with an avoidance hole, and the wire inlet hole is connected to the avoidance hole.

[0014] Preferably, the sliding track takes the axis of the avoidance hole as its axis.

[0015] Preferably, the wire inlet hole is in the shape of an elongated strip, and the length direction of the wire inlet hole is parallel to the moving direction of the movable electrode driven by the driving mechanism.

[0016] Preferably, the driving mechanism comprises:

[0017] A driver, the driver is mounted on the adjustment seat;

[0018] An insulating plate, wherein the movable electrode is connected to the output end of the driver through the insulating plate.

[0019] Preferably, the driving mechanism further comprises:

[0020] A support frame, the support frame is mounted on the adjustment seat, and the driver is mounted on the support frame;

[0021] A guide column, slidably disposed on the support frame, one end of which is connected to the output end of the driver, and the other end of which is connected to the insulating plate;

[0022] The electrode seat is installed on a side of the insulating plate away from the guide column, and the movable electrode is installed on a side of the electrode seat away from the insulating plate.

[0023] Preferably, a transformer is further included, wherein two output electrodes of the transformer are respectively a first output electrode and a second output electrode, the first output electrode is electrically connected to the fixed electrode, and the second output electrode is electrically connected to the movable electrode.

[0024] Preferably, the first output electrode is electrically connected to the fixed electrode through the adjustment socket.

[0025] A welding method, using the above welding device, comprising:

[0026] Step 1: The adjusting seat slides along the sliding track to adjust the position so that the connection line between the fixed electrode and the movable electrode is perpendicular to the tangent line of the stirrup to be welded;

[0027] Step 2: Place the stirrup to be welded between the fixed electrode and the movable electrode;

[0028] Step 3: Extend the longitudinal reinforcement through the wire entry hole between the fixed electrode and the movable electrode so that the longitudinal reinforcement is located on the side of the stirrup to be welded away from the fixed electrode;

[0029] Step 4: The driving mechanism drives the movable electrode to move toward the fixed electrode, so that the longitudinal reinforcement and the stirrup to be welded are sandwiched between the fixed electrode and the movable electrode;

[0030] Step 5: Power on the fixed electrode and the movable electrode to weld the longitudinal reinforcement and stirrups at the locations to be welded.

[0031] Beneficial effects of the present invention:

[0032] Compared with a circular track, a fixed seat with an arc-shaped sliding track occupies less space. On this basis, the adjustment seat supports the fixed electrode, driving mechanism and movable electrode, and can drive the fixed electrode, driving mechanism and movable electrode to slide along the sliding track for position adjustment, making the welding position adjustment more flexible and convenient, omitting the configuration of driving mechanisms such as manipulators, reducing processing costs, and being able to meet the welding needs of stirrups of various sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of a welding device according to an embodiment of the present invention;

[0034] Figure 2 is a schematic structural diagram of a fixing base according to an embodiment of the present invention;

[0035] Figure 3 is a schematic structural diagram of an adjustment seat according to an embodiment of the present invention;

[0036] Figure 4 It is a schematic diagram of the disassembled structure of the fixed electrode, the brass base, the driving mechanism and the movable electrode according to the embodiment of the present invention;

[0037] Figure 5 is a schematic structural diagram of a transformer according to an embodiment of the present invention;

[0038] Figure 6 is a perspective structural schematic diagram of an electrode holder according to an embodiment of the present invention;

[0039] Figure 7 It is a schematic structural diagram of the welding device according to an embodiment of the present invention when welding stirrups and longitudinal reinforcement.

[0040] In the figure:

[0041] 100, stirrups; 200, longitudinal reinforcement;

[0042] 1. Fixed seat; 11. Sliding track; 111. Long hole; 12. Avoidance hole;

[0043] 2. Adjustment seat; 21. Wire entry hole;

[0044] 3. Fix the electrode;

[0045] 4. Driving mechanism; 41. Driver; 42. Insulating plate; 43. Support frame; 44. Guide column; 45. Electrode holder; 451. First flow slot; 452. First water inlet and outlet; 453. Second water inlet and outlet; 454. First threaded hole; 46. Water inlet copper core; 47. Guide rod; 48. Copper limit sleeve; 49. Fastener;

[0046] 5. Active electrode;

[0047] 6. Transformer; 61. First output electrode; 62. Second output electrode; 63. Side copper base; 64. Brass base; 65. Soft wire. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0052] like Figure 1-Figure 7 As shown, the present invention provides a welding device, including a fixed seat 1, an adjustment seat 2, a fixed electrode 3, a driving mechanism 4 and a movable electrode 5. The fixed seat 1 is provided with an arc-shaped sliding track 11, the adjustment seat 2 can slide along the sliding track 11 for position adjustment, the adjustment seat 2 is provided with a wire entry hole 21, the fixed electrode 3 is installed on the adjustment seat 2, the driving mechanism 4 is installed on the adjustment seat 2, the movable electrode 5 is installed at the output end of the driving mechanism 4, the steel bar passing through the wire entry hole 21 is located between the fixed electrode 3 and the movable electrode 5, and the driving mechanism 4 can drive the movable electrode 5 to move toward the fixed electrode 3.

[0053] In the present invention, compared with a circular track, the fixed seat 1 with an arc-shaped sliding track 11 occupies less space. On this basis, the adjustment seat 2 supports the fixed electrode 3, the driving mechanism 4 and the movable electrode 5, and can drive the fixed electrode 3, the driving mechanism 4 and the movable electrode 5 to slide along the sliding track 11 for position adjustment, so that the position adjustment of welding is more flexible and convenient, the configuration of the driving mechanism 4 such as a manipulator is omitted, the processing cost is reduced, and the welding requirements of stirrups 100 of various sizes and shapes can be met.

[0054] Specifically, the sliding track 11 includes two coaxially arranged arc rails, and the adjustment seat 2 can slide along the two arc rails. The two arc rails cooperate with each other to avoid translation of the adjustment seat 2 when sliding, so that the adjustment seat 2 can stably and reliably deflect to adjust the position.

[0055] More specifically, the welding device further comprises a fastener, the arc rail is a long hole 111, the fastener is inserted into the long hole 111 and is screwed to the adjustment seat 2, the fastener has a fastened state and a released state, when the fastener is in the fastened state, the fixed seat 1 is clamped between the adjustment seat 2 and the head of the fastener, when the fastener is in the released state, the adjustment seat 2 can slide along the arc rail. The above arrangement enables the adjustment seat 2 to be reliably locked in the set position.

[0056] In this embodiment, the fixed seat 1 and the adjustment seat 2 are both plate-like structures, the fasteners are bolts, and at least one bolt is passed through each elongated hole 111. In the tightened state, the head of the bolt abuts against the fixed seat 1 to lock the adjustment seat 2. In the released state, the distance between the adjustment seat 2 and the head of the fastener is greater than the thickness of the fixed seat 1, so that the adjustment seat 2 can slide in the elongated hole 111 through the fastener.

[0057] In other embodiments, the arc rail can also be a groove rail, and a slider is provided on the adjustment seat 2, and the slider slides in the groove rail. At this time, the fastener is a bolt or a screw, which is screwed to the adjustment seat 2 and can abut against the fixed seat 1.

[0058] Specifically, the fixing seat 1 is provided with an avoidance hole 12, and the wire entry hole 21 is connected to the avoidance hole 12. The above arrangement enables the steel bar to be fed based on the avoidance hole 12, and then extend into between the fixed electrode 3 and the movable electrode 5 through the wire entry hole 21, which is more stable and reliable.

[0059] More specifically, the sliding track 11 takes the axis of the avoidance hole 12 as its axis. The above arrangement enables the wire entry hole 21 to always be reliably connected to the avoidance hole 12 when the adjustment seat 2 is slidingly adjusted relative to the fixed seat 1.

[0060] In this embodiment, the wire entry hole 21 is in the shape of a long strip, and the length direction of the wire entry hole 21 is parallel to the moving direction of the movable electrode 5 driven by the driving mechanism 4. The above arrangement enables the wire entry hole 21 to initially limit the steel bars passing through it.

[0061] Specifically, the driving mechanism 4 includes a driver 41 and an insulating plate 42. The driver 41 is mounted on the adjustment seat 2, and the movable electrode 5 is connected to the output end of the driver 41 through the insulating plate 42. By providing the insulating plate 42, the fixed electrode 3 and the movable electrode 5 can perform welding operations safely and reliably.

[0062] More specifically, the driving mechanism 4 further includes a support frame 43, a guide column 44 and an electrode holder 45. The support frame 43 is mounted on the adjustment seat 2, the driver 41 is mounted on the support frame 43, the guide column 44 is slidably arranged on the support frame 43, one end of which is connected to the output end of the driver 41, and the other end is connected to the insulating plate 42, the electrode holder 45 is mounted on the side of the insulating plate 42 away from the guide column 44, and the movable electrode 5 is mounted on the side of the electrode holder 45 away from the insulating plate 42. The support frame 43, the guide column 44 and the electrode holder 45 cooperate with each other, so that the driver 41 can drive the movable electrode 5 more stably and reliably.

[0063] In this embodiment, the driver 41 is a cylinder. In other embodiments, the driver 41 can also be a linear drive device such as an electric cylinder.

[0064] Specifically, the electrode holder 45 is provided with a first flow slot 451 and a first water inlet and outlet 452 and a second water inlet and outlet 453 connected to the first flow slot 451, and the movable electrode 5 is connected to the notch of the first flow slot 451. Since welding generates a large amount of heat, it is necessary to cool down. In the above configuration, the first water inlet and outlet 452 and the second water inlet and outlet 453 are one water inlet and the other water outlet. The water entering from the water inlet flows through the movable electrode 5 in the first flow slot 451 and then flows out from the water outlet, thereby achieving water cooling of the movable electrode 5.

[0065] More specifically, a water inlet copper core 46 is provided in the first circulation groove 451, a first trough is provided on the movable electrode 5, a first threaded hole 454 is provided at the bottom of the first circulation groove 451, a first water inlet and outlet 452 is connected to the first circulation groove 451 through the first threaded hole 454, one end of the water inlet copper core 46 is screwed into the first threaded hole 454 and connected to the first water inlet and outlet 452, and the other end extends into the first trough, so that the cooling water flow can extend into the interior of the movable electrode 5 for cooling.

[0066] In this embodiment, the driving mechanism 4 also includes a guide rod 47, a copper limit sleeve 48 and a fastener 49. A first connecting block is arranged at one end of the guide column 44. The insulating plate 42 is a plate made of insulating material, which is laid and installed on the first connecting block. The guide rod 47 is inserted into the sliding groove of the support frame 43, and a second connecting block is arranged at one end. The second connecting block is connected to the first connecting block by bolts, so as to interfere with the rotation of the guide column 44. A copper limit sleeve 48 is arranged on both sides of the guide rod 47, and each copper limit sleeve 48 is configured with a fastener 49. The fastener 49 is a bolt, which is screwed to the support frame 43. One end of the fastener 49 extending into the sliding groove is connected to the copper limit sleeve 48. The two copper limit sleeves 48 are used to limit the guide rod 47, so that the guide rod 47 can stably translate and retract.

[0067] In other embodiments, a guide groove may be provided on the guide column 44 , the guide groove extending along the axial direction of the guide column 44 , and a steel key may be installed on the support frame 43 , the steel key extending into the guide groove, thereby interfering with the rotation of the guide column 44 .

[0068] Specifically, the welding device further includes a transformer 6, and the two output electrodes of the transformer 6 are respectively a first output electrode 61 and a second output electrode 62, the first output electrode 61 is electrically connected to the fixed electrode 3, and the second output electrode 62 is electrically connected to the movable electrode 5. The above arrangement enables the fixed electrode 3 and the movable electrode 5 to be installed and reliably connected to the power supply.

[0069] More specifically, the first output electrode 61 is electrically connected to the fixed electrode 3 through the adjustment base 2. The above arrangement makes the electrical connection between the first output electrode 61 and the fixed electrode 3 more convenient and reliable.

[0070] In this embodiment, the adjustment seat 2 is an aluminum plate, which has good electrical conductivity and plays a conductive role in welding. The first output electrode 61 is connected to the aluminum plate through the side copper seat 63, the fixed electrode 3 is connected to the aluminum plate through the brass base 64, and the second output electrode 62 is connected to the electrode seat 45 through the soft wire 65, and then electrically connected to the movable electrode 5. The fixed electrode 3 and the movable electrode 5 form a closed loop when clamping the longitudinal reinforcement 200 and the stirrup 100, so that welding can be performed. During the welding process, the aluminum plate will also generate heat. The aluminum plate should have the advantages of high strength, corrosion resistance, light weight, good electrical conductivity, etc., so this embodiment uses 7075 alloy aluminum, but is not limited to 7075 alloy aluminum.

[0071] Specifically, the brass base 64 is provided with a second circulation groove and a third water inlet and a fourth water inlet and outlet connected to the second circulation groove. The fixed electrode 3 is connected to the groove of the second circulation groove. Since a large amount of heat is generated by welding, cooling is required. The third water inlet and the fourth water inlet and outlet are a water flow inlet and a water flow outlet respectively. The water entering from the water flow inlet flows through the fixed electrode 3 in the second circulation groove and then flows out from the water flow outlet, thereby realizing water cooling of the fixed electrode 3. A water inlet copper core 46 may also be provided in the second circulation groove. A second trough is provided on the fixed electrode 3. A second threaded hole is provided at the bottom of the second circulation groove. One end of the water inlet copper core 46 is screwed into the second threaded hole and connected to the third water inlet and outlet, and the other end extends into the first trough, so that the cooling water flow can extend into the fixed electrode 3 for cooling.

[0072] More specifically, a transformer 6 with smaller, more flexible and lighter dimensions is selected, and threaded holes are provided on the side of the transformer 6 so that it can be installed on an aluminum plate. In addition, a flow channel connecting the first output electrode 61 and the second output electrode 62 is provided on the transformer 6, and the flow channel is connected to the outside through the fifth inlet and outlet and the sixth inlet and outlet. Heat is generated during the welding operation, and the transformer 6 can be cooled by water cooling.

[0073] The welding device of the present invention is used for welding circular stirrup beams and columns. In addition, the welding device can also weld together the longitudinal reinforcement 200 and stirrups 100 of other shapes, such as rectangular, circular and various shapes of stirrups 100.

[0074] The present invention also provides a welding method, using the above-mentioned welding device, comprising:

[0075] Step 1: The adjusting seat 2 slides along the sliding track 11 to adjust the position so that the connection line between the fixed electrode 3 and the movable electrode 5 is perpendicular to the tangent line of the stirrup 100 at the welding position;

[0076] Step 2: Place the stirrup 100 to be welded between the fixed electrode 3 and the movable electrode 5;

[0077] Step 3: insert the longitudinal reinforcement 200 through the wire entry hole 21 and between the fixed electrode 3 and the movable electrode 5, so that the longitudinal reinforcement 200 is located on the side of the stirrup 100 to be welded away from the fixed electrode 3;

[0078] Step 4: The driving mechanism 4 drives the movable electrode 5 to move toward the fixed electrode 3, so that the to-be-welded portion of the longitudinal reinforcement 200 and the stirrup 100 is sandwiched between the fixed electrode 3 and the movable electrode 5;

[0079] Step 5: The fixed electrode 3 and the movable electrode 5 are energized to weld the longitudinal reinforcement 200 and the stirrup 100 at the locations to be welded.

[0080] In the welding method of the present invention, compared with a circular track, the fixed seat 1 with an arc-shaped sliding track 11 occupies less space. On this basis, the adjustment seat 2 supports the fixed electrode 3, the driving mechanism 4 and the movable electrode 5, and can drive the fixed electrode 3, the driving mechanism 4 and the movable electrode 5 to slide along the sliding track 11 for position adjustment, so that the position adjustment of welding is more flexible and convenient, the configuration of the driving mechanism 4 such as a manipulator is omitted, the processing cost is reduced, and the welding requirements of stirrups 100 of various sizes and shapes can be met.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A welding device, characterized in that: include: A fixed seat (1), wherein the fixed seat (1) is provided with an arc-shaped sliding track (11); An adjustment seat (2), the adjustment seat (2) being capable of sliding along the sliding track (11) to perform position adjustment, and the adjustment seat (2) being provided with a wire entry hole (21); A fixed electrode (3) mounted on the adjustment seat (2); A driving mechanism (4) mounted on the adjustment seat (2); The movable electrode (5) is installed at the output end of the driving mechanism (4), and the steel bar passing through the wire entry hole (21) is located between the fixed electrode (3) and the movable electrode (5). The driving mechanism (4) can drive the movable electrode (5) to move toward the fixed electrode (3).

2. The welding device according to claim 1, characterized in that: The sliding track (11) comprises two coaxially arranged arc-shaped rails, and the adjustment seat (2) can slide along the two arc-shaped rails.

3. The welding device according to claim 2, characterized in that: The invention also comprises a fastener, wherein the arc-shaped rail is a long hole (111), the fastener is inserted into the long hole (111) and is screwed to the adjustment seat (2), the fastener has a fastened state and a released state, when the fastener is in the fastened state, the fixed seat (1) is clamped between the adjustment seat (2) and the head of the fastener, when the fastener is in the released state, the adjustment seat (2) can slide along the arc-shaped rail.

4. The welding device according to claim 1, characterized in that: The fixing seat (1) is provided with an avoidance hole (12), and the wire inlet hole (21) is connected to the avoidance hole (12).

5. The welding device according to claim 4, characterized in that: The sliding track (11) takes the axis of the avoidance hole (12) as its axis.

6. The welding device according to claim 1, characterized in that: The wire entry hole (21) is in the shape of an elongated strip, and the length direction of the wire entry hole (21) is parallel to the moving direction of the movable electrode (5) driven by the driving mechanism (4).

7. The welding device according to claim 1, characterized in that: The driving mechanism (4) comprises: A driver (41), wherein the driver (41) is mounted on the adjustment seat (2); An insulating plate (42), wherein the movable electrode (5) is connected to the output end of the driver (41) through the insulating plate (42).

8. The welding device according to any one of claims 1 to 7, characterized in that: It also comprises a transformer (6), wherein the two output electrodes of the transformer (6) are respectively a first output electrode (61) and a second output electrode (62), wherein the first output electrode (61) is electrically connected to the fixed electrode (3), and the second output electrode (62) is electrically connected to the movable electrode (5).

9. The welding device according to claim 8, characterized in that: The first output electrode (61) is electrically connected to the fixed electrode (3) through the adjustment seat (2).

10. A welding method, characterized in that: The welding device according to any one of claims 1 to 9 comprises: Step 1: The adjusting seat (2) slides along the sliding track (11) to adjust the position so that the connection line between the fixed electrode (3) and the movable electrode (5) is perpendicular to the tangent line of the stirrup (100) at the welding position to be welded; Step 2: placing the stirrup (100) to be welded between the fixed electrode (3) and the movable electrode (5); Step 3: insert the longitudinal reinforcement (200) through the wire entry hole (21) between the fixed electrode (3) and the movable electrode (5), so that the longitudinal reinforcement (200) is located on the side of the stirrup (100) to be welded away from the fixed electrode (3); Step 4: The driving mechanism (4) drives the movable electrode (5) to move toward the fixed electrode (3), so that the to-be-welded portion of the longitudinal reinforcement (200) and the stirrup (100) is sandwiched between the fixed electrode (3) and the movable electrode (5); Step 5: The fixed electrode (3) and the movable electrode (5) are energized to weld the longitudinal reinforcement (200) and the stirrup (100) at the locations to be welded.

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