Electrode clamping welding mechanism

Abstract

The present invention relates to an electrode clamping welding mechanism, comprising a clamping welding mechanism arranged on a frame, and a positioning mechanism capable of clamping a workpiece, wherein the positioning mechanism corresponds to the clamping welding mechanism, and the clamping welding mechanism comprises at least one pair of lower electrode seats and upper electrode seats arranged on the frame and capable of opening and closing relative to each other; a welding groove is arranged in the lower electrode seat, and at least one lower electrode is arranged in the welding groove; a graded displacement mechanism is arranged on the frame, and the graded displacement mechanism is driven and connected with an upper electrode seat slidably arranged on the frame, and an upper electrode capable of graded pressing displacement relative to the lower electrode is arranged in the upper electrode seat; a pressing mechanism and a lifting device capable of flexible pressing and separation are arranged in the graded displacement mechanism, and an elastic pressing damping member is arranged in the pressing mechanism. The present invention provides an electrode clamping welding mechanism capable of flexible clamping welding of the overlapped part of the workpiece and the cable.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, mainly to the field of workpiece welding, and in particular to an electrode clamping welding mechanism. Background Art

[0002] Existing patent: A device for welding electrodes of ultraviolet tubes and its welding method (patent number: 201810750327.9), discloses a device for welding electrodes of ultraviolet tubes and its welding method, and relates to the field of ultraviolet photoelectric tube manufacturing technology, including an upper base and a lower base, a guide column is arranged between the upper base and the lower base, an upper mold is arranged at the bottom of the upper base, cathode sheet limiting grooves for placing cathode sheets are arranged on both sides of the upper mold, and anode sheet limiting grooves for placing anode sheets are arranged at the bottom of the upper mold, a fixed block is arranged at the upper part of the lower base close to one side, a guide groove is processed on the lower base below the fixed block, a slide groove is arranged on the other side of the lower base corresponding to the guide groove, and an insert block is arranged in the slide groove and the guide groove, and a cavity for placing the core column is arranged at the center of the lower base. The present invention ensures that the spacing between the positive and negative electrodes is consistent after welding, and the parallelism and flatness are high; the relative position of the welding angle of the anode sheet and the core column is consistent; the discharge between the positive and negative electrodes is uniform, and the performance and quality of the ultraviolet tube are improved.

[0003] In the prior art, although it is possible to perform spot welding on the workpiece, the welding pressing structure directly presses the welding part of the workpiece through mechanical stress. When there is a lack of downward damping force, it is easy to cause excessive force during pressing welding, causing mechanical damage to the welding part of the workpiece, and it cannot return to its original position quickly during recovery. At the same time, it is not convenient and effective to weld the workpieces to be welded in the adjacent welding grooves. Summary of the invention

[0004] The invention overcomes the shortcomings of the prior art and provides an electrode clamping welding mechanism which can clamp and weld the overlapping part of a workpiece and a cable.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an electrode clamping welding mechanism, including a clamping welding mechanism arranged on a frame, and a positioning mechanism capable of clamping a workpiece, the positioning mechanism corresponds to the clamping welding mechanism, the clamping welding mechanism includes at least one pair of lower electrode seats and upper electrode seats arranged on the frame that can open and close relative to each other; a welding groove is arranged in the lower electrode seat, and at least one lower electrode is arranged in the welding groove; a graded displacement mechanism is arranged on the frame, the graded displacement mechanism is driven and connected to an upper electrode seat slidably arranged on the frame, and an upper electrode capable of graded pressing displacement relative to the lower electrode is arranged in the upper electrode seat; a downward pressing mechanism and a lifting device capable of flexible pressing and separation are arranged in the graded displacement mechanism, and an elastic pressing damping member is arranged in the downward pressing mechanism.

[0006] In a preferred embodiment of the present invention, the graded displacement mechanism includes a lateral shift mechanism arranged on the frame, and a mounting seat slidably arranged on the frame; the mounting seat is provided with a downward pressing mechanism and a lifting device, and an upper electrode seat slidably arranged on the mounting seat; the upper electrode seat is drive-connected to the lifting device, and the upper electrode seat corresponds to the downward pressing mechanism.

[0007] In a preferred embodiment of the present invention, the pressing mechanism includes an upper electrode pushing cylinder fixedly arranged on the upper part of the mounting seat, the upper electrode pushing cylinder is drivingly connected to an auxiliary pushing block, and an elastic compression damping member is arranged between the electrode pushing cylinder and the auxiliary pushing block.

[0008] In a preferred embodiment of the present invention, the elastic pressed damping member includes a piston seat arranged between the electrode ejection cylinder and the auxiliary ejection block, a piston sleeve is movably inserted into the piston seat, and an elastic member is arranged between the top end of the piston sleeve and the piston seat.

[0009] In a preferred embodiment of the present invention, a piston column is inserted into the piston sleeve, one end of the piston column is fixedly arranged in the piston sleeve on the auxiliary ejection block, and the other end of the piston column passes through the elastic member and then passes out of the piston seat.

[0010] In a preferred embodiment of the present invention, the lifting device further comprises an upper electrode lifting cylinder fixedly connected to the upper electrode seat, and a driving end of the upper electrode lifting cylinder is drivingly connected to the mounting seat.

[0011] In a preferred embodiment of the present invention, a line dividing block is provided in the welding groove, and lower electrodes are respectively provided on both sides of the line dividing block.

[0012] In a preferred embodiment of the present invention, the positioning mechanism includes at least one pair of clamping blocks respectively arranged on both sides of the line dividing block, and the clamping blocks can be reciprocatedly opened and closed relative to the line dividing block.

[0013] In a preferred embodiment of the present invention, a lifting mechanism is provided on the frame, a mounting plate 1 is provided on the lifting mechanism, and the clamping and welding mechanism, the positioning mechanism, and the graded displacement mechanism are provided on the mounting plate 1.

[0014] The present invention solves the defects existing in the background technology, and the beneficial effects of the present invention are as follows:

[0015] The invention provides an electrode clamping welding mechanism which can clamp and weld the overlapping part of a workpiece and a cable, and is particularly suitable for welding the overlapping part of a workpiece and a Y-type cable joint.

[0016] By driving the lateral displacement and up and down movement of the upper electrode through the graded displacement mechanism, flexible, step-by-step, clamping welding of the welding point can be achieved. It can also partially clamp and position the workpiece and the cable connector overlapped with the workpiece pin, making the welding process convenient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a front view schematic diagram of the structure of the present invention installed on a frame;

[0019] Figure 2 It is a front view structural schematic diagram of the present invention;

[0020] Figure 3 The side view structure of the present invention is schematically shown Figure 1 ;

[0021] Figure 4 The side view structure of the present invention is schematically shown Figure 2 ;

[0022] Among them, 1-frame, 2-lifting mechanism, 21-lifting cylinder, 22-lifting mounting plate, 23-lifting column, 24-mounting plate one, 3-positioning mechanism, 4-lower electrode, 41-lower electrode seat, 42-welding groove, 43-dividing block, 5-upper electrode, 6-graded displacement mechanism, 61-pressing mechanism, 610-upper electrode pushing cylinder, 611-mounting seat, 612-piston column, 613-elastic pressing damping member, 614-positioning rod, 615-mounting block, 616-upper electrode lifting cylinder, 617-upper electrode seat, 62-side shift mechanism, 621-side shift cylinder, 622-side shift push rod, 623-side shift mounting plate, 624-limiting rod, 625-side shift slide rail, 626-mounting vertical plate. DETAILED DESCRIPTION

[0023] The present invention will now be further described in detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] like Figure 1~Figure 4 As shown, this embodiment discloses an electrode clamping welding mechanism, including a clamping welding mechanism arranged on a frame 1, and a positioning mechanism 3 capable of clamping a workpiece, the clamping welding mechanism corresponds to the positioning mechanism 3. The clamping welding mechanism includes at least one pair of lower electrode holder 4 and upper electrode holder 5 that can open and close relative to each other.

[0025] A lifting mechanism 2 is provided on the frame 1, and one end of the lifting cylinder 21 in the lifting mechanism 2 is fixedly provided on the frame 1, and a lifting column 23 is driven and provided on the lifting cylinder 21, and a lifting mounting plate 22 is supported and connected on the lifting mounting plate 22, and a mounting plate 24 is provided on the lifting mounting plate 22, and a mounting vertical plate 626 is provided on one side of the mounting plate 24, and a positioning mechanism 3 for clamping and positioning the workpiece is provided in front of the mounting vertical plate 626 of the mounting plate 24, and the positioning mechanism 3 includes at least one pair of clamping blocks that can be opened and closed relative to each other, and clamping cylinders for pushing the clamping blocks are respectively provided on both sides of the clamping blocks, and the clamping blocks are slidably provided on a transverse slide rail between the clamping cylinders arranged oppositely, and a lower electrode seat 41 is provided between the clamping blocks arranged oppositely on the transverse slide rail, and a welding groove 42 is provided in the lower electrode seat 41, and a branching block 43 is provided in the welding groove 42, and lower electrodes 4 are respectively provided in the welding grooves 42 on both sides of the branching block 43.

[0026] A graded displacement mechanism 6 is arranged on the mounting plate 626, and the graded displacement mechanism 6 includes a lateral displacement mechanism 62 arranged on the mounting plate 626, and a mounting seat 611 slidably arranged on the frame 1; a pressing mechanism 61 and a lifting device are arranged on the mounting seat 611, and an upper electrode seat 617 slidably arranged on the mounting seat 611; the upper electrode seat 617 is drive-connected to the lifting device, and the upper electrode seat 617 corresponds to the pressing mechanism 61.

[0027] Specifically, the side shift mechanism 62 includes a side shift mounting plate 623 arranged on one side of the mounting vertical plate 626, and a side shift cylinder 621 is arranged on the side shift mounting plate 623. The side shift cylinder 621 is driven and connected to a transverse side shift push rod 622, and the transverse side shift push rod 622 is driven and connected to a mounting seat 611 that is slidably arranged on a side shift slide rail 625 of the mounting vertical plate 626.

[0028] Specifically, the pressing mechanism 61 includes an upper electrode push-up cylinder 610 fixedly arranged on the upper part of the mounting seat 611, and the upper electrode push-up cylinder 610 is driven and connected with an auxiliary push-up block, and an elastic pressing damping member 613 is arranged between the electrode push-up cylinder 610 and the auxiliary push-up block. Furthermore, the auxiliary push-up block can be fixedly connected to the upper electrode seat 617, or can be relatively movable against it. In the present application, the auxiliary push-up block is fixedly connected to the upper electrode seat 617. The elastic pressing damping member 613 includes a piston seat arranged between the electrode push-up cylinder 610 and the auxiliary push-up block, a piston sleeve is movably inserted in the piston seat, and an elastic member is arranged between the top of the piston sleeve and the piston seat. A piston column 612 is inserted in the piston sleeve, one end of the piston column 612 is fixedly arranged in the piston sleeve on the auxiliary push-up block, and the other end of the piston column 612 is inserted through the elastic member and then inserted out of the piston seat. The elastic member in the present invention is a spring.

[0029] In a preferred embodiment of the present invention, the lifting device further comprises an upper electrode lifting cylinder 616 fixedly connected to the upper electrode holder 617, and the driving end of the upper electrode lifting cylinder 616 is drivingly connected to the mounting seat 611. Specifically, the mounting seat 611 is provided with a pair of parallel longitudinal slide rails, on which the upper electrode holder 617, the auxiliary ejection block, and the piston seat are slidably arranged.

[0030] The principle of the present invention is:

[0031] like Figure 1~Figure 4 As shown, the overlapped part of the workpiece pin and the lead end of the cable is placed in the welding groove 42 on both sides of the branching block 43 so that the workpiece pin contacts the lower electrode 5. The side shift mechanism 62 in the graded displacement mechanism 6 drives the mounting seat 611 to slide along the side shift slide rail 625 to above the lower electrode seat 41 in the welding groove 42. During the lateral displacement process, the upper electrode lifting cylinder 616 in the graded displacement mechanism 6 adopts a single-acting cylinder. Due to the characteristics of the single-acting cylinder of the upper electrode lifting cylinder 616, the upper electrode seat 617 is lifted by the upper electrode lifting cylinder 616 during the push.

[0032] When welding is required, the upper electrode push-up cylinder 610 of the pressing mechanism 61 drives the auxiliary push-up block to press down, and the piston seat moves downward along the longitudinal slide rail on the mounting seat 611. The piston seat, which is movably sleeved outside the piston sleeve, moves downward, and the piston sleeve squeezes the elastic member, which is deformed by force, generating a damping force to achieve flexible downward pressure. The piston column 612 that passes through the piston sleeve and the elastic member passes through the piston seat. The upper electrode push-up cylinder 610 presses downward until the auxiliary push-up block connected to it presses the upper electrode seat 617 that is slidably set on the longitudinal slide rail on the mounting seat 611. The upper electrode pushing cylinder 610 continues to press downward, and the upper electrode lifting cylinder 616 connected to the upper electrode seat 617 is reversely contracted by external pressure to press down the upper electrode seat 617, and the upper electrode seat 617 moves downward until the upper electrode 5 of the upper electrode seat 617, so that the upper electrode 5 corresponding to the lower electrode 4 in the upper electrode seat 617 contacts the overlapping end of the workpiece pin and the cable lead.

[0033] The upper electrode 5 and the lower electrode 4 are connected to the positive and negative electrodes of the power supply through wires, respectively. The wires can be low-resistance wires such as copper wires, and the welding part of the product is clamped in the welding groove 42. The positive and negative electrodes connected to the upper electrode 5 and the lower electrode 4 are connected, and the upper electrode 5 and the lower electrode 4 form a loop. Since the upper electrode 5 and the lower electrode 4 have a large resistance to the contact part with the workpiece, after the current loop is formed, the contact part of the upper electrode 5 and the lower electrode 4 with the product will quickly generate a high temperature, thereby melting the overlapped ends of the workpiece pins and the cable leads by high temperature for welding. After the overlapped ends of the workpiece pins and the cable leads on one side are welded, the elastic pressing damping member 613 drives to accelerate the upper electrode push cylinder 610 to drive the auxiliary push block to reset. The upper electrode lifting cylinder 616 pushes the upper electrode seat 617 to lift. Pushed again by the side displacement cylinder 621, the upper electrode seat 617 is displaced to the adjacent lower electrode 4 and pressed down to achieve clamp welding, and the cycle is repeated in sequence.

[0034] Based on the above ideal embodiments of the present invention, through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An electrode clamping welding mechanism, comprising a clamping welding mechanism arranged on a frame, and a positioning mechanism capable of clamping a workpiece, wherein the positioning mechanism corresponds to the clamping welding mechanism, and the clamping welding mechanism comprises at least one pair of lower electrode holder and upper electrode holder arranged on the frame and capable of opening and closing relative to each other; characterized in that: The lower electrode holder is provided with a welding groove, and at least one lower electrode is provided in the welding groove; the frame is provided with a graded displacement mechanism, and the graded displacement mechanism is drivingly connected to an upper electrode holder slidably provided on the frame, and the upper electrode holder is provided with an upper electrode capable of graded pressing displacement relative to the lower electrode; the graded displacement mechanism is provided with a pressing mechanism and a lifting device capable of flexible pressing and separation, and the pressing mechanism is provided with an elastic pressing damping member; The graded displacement mechanism comprises a lateral displacement mechanism arranged on the frame, and a mounting seat slidably arranged on the frame; the mounting seat is provided with a pressing mechanism and a lifting device, and an upper electrode seat slidably arranged on the mounting seat; the upper electrode seat is drivingly connected to the lifting device, and the upper electrode seat corresponds to the pressing mechanism; The pressing mechanism comprises an upper electrode pushing cylinder fixedly arranged on the upper part of the mounting seat, the upper electrode pushing cylinder is drivingly connected to an auxiliary pushing block, and an elastic pressing damping member is arranged between the upper electrode pushing cylinder and the auxiliary pushing block; The elastic pressed damping member comprises a piston seat arranged between the upper electrode ejection cylinder and the auxiliary ejection block, a piston sleeve is movably inserted into the piston seat, and an elastic member is arranged between the top end of the piston sleeve and the piston seat; The lifting device also includes an upper electrode lifting cylinder fixedly connected to the upper electrode seat, and a driving end of the upper electrode lifting cylinder is drivingly connected to the mounting seat.

2. The electrode clamp welding mechanism according to claim 1, characterized in that: A piston column is inserted into the piston sleeve, one end of the piston column is fixedly arranged in the piston sleeve on the auxiliary ejection block, and the other end of the piston column passes through the elastic member and then passes out of the piston seat.

3. The electrode clamp welding mechanism according to claim 2, characterized in that: A line dividing block is arranged in the welding groove, and lower electrodes are arranged on both sides of the line dividing block.

4. The electrode clamp welding mechanism according to claim 3, characterized in that: The positioning mechanism comprises at least one pair of clamping blocks respectively arranged on both sides of the line dividing block, and the clamping blocks can be reciprocatedly opened and closed relative to the line dividing block.

5. The electrode clamp welding mechanism according to claim 4, characterized in that: The frame is provided with a lifting mechanism, the lifting mechanism is provided with a mounting plate 1, and the mounting plate 1 is provided with the clamping and welding mechanism, the positioning mechanism, and the graded displacement mechanism.

Images