Multi-stud welding arm

Abstract

The utility model relates to the technical field of welding, in particular to a multi-stud welding arm. A multi-stud welding arm comprises a stud sleeve and a sleeve mounting platform. The nail planting sleeve sequentially comprises a nail planting fixing head, a nail planting fixing seat and an electrode bolt from top to bottom; the sleeve installation platform comprises an installation plate and a driving device, the driving device drives the installation plate to move in the vertical direction, a plurality of installation holes are formed in the installation plate, and the electrode bolts penetrate through the installation holes and are fixed to the installation holes through two nuts. The multi-planting nail welding arm has the advantages that a plurality of mounting holes are formed in the mounting platform of the sleeve mounting platform, a plurality of planting nails can be fixed and used at the same time, two nuts are used for fixing an electrode bolt, the positions of the planting nails relative to the mounting platform can be adjusted, and the multi-planting nail welding arm is used in cooperation with the planting nails.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a multi-pin welding arm. Background Art

[0002] Stud welding, also known as stud welding, is a process for welding a cylindrical metal fastener perpendicularly to a flat or curved surface. Stud welding involves instantaneously generating a high current, melting the tip of the stud. The pressure or impact of the welding torch then welds the stud to the metal surface.

[0003] Automobile chassis parts generally go through a welding process that requires a high-current welding machine. During welding, each nail is used for welding, resulting in low welding efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a multi-screw welding arm with high welding efficiency and adjustable positions of the screws relative to the installation platform.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: providing a multi-nail welding arm, including a nail planting sleeve and a sleeve mounting platform;

[0006] The nail sleeve includes a nail fixing head, a nail fixing seat and an electrode bolt from top to bottom; the nail fixing seat is threadedly connected to the nail fixing head and the electrode bolt respectively, and two nuts are threadedly connected to the electrode bolt, and a bolt insulating sleeve is provided between the two nuts; the nail fixing head is provided with a nail through hole for the nail to pass through;

[0007] The sleeve mounting platform includes a mounting plate and a driving device, wherein the driving device drives the mounting plate to move in a vertical direction. A plurality of mounting holes are provided on the mounting plate, and the electrode bolts pass through the mounting holes and are fixed on the mounting holes by two nuts.

[0008] Furthermore, in the above-mentioned multi-nail welding arm, three mounting holes are provided on the mounting plate.

[0009] Furthermore, in the above-mentioned multi-nail welding arm, the driving device includes a hydraulic cylinder, and the hydraulic cylinder drives the mounting plate to move in the vertical direction.

[0010] Furthermore, in the above-mentioned multi-nail welding arm, the hydraulic cylinder includes a telescopic rod, which drives the mounting plate to move in a vertical direction, and a protective plate is provided on the side of the telescopic rod.

[0011] Furthermore, in the above-mentioned multi-pin welding arm, a pin insulating sleeve is provided in the pin fixing seat; one end of the pin having a thread passes through the pin through hole and is sleeved in the pin insulating sleeve.

[0012] Furthermore, in the above-mentioned multi-pin welding arm, the pin insulating sleeve is interference-connected with the pin fixing seat.

[0013] Furthermore, in the above-mentioned multi-pin welding arm, the side wall of the pin fixing seat is provided with a positioning pin threaded hole, and the ceramic positioning pin passes through the positioning pin threaded hole and abuts against the pin insulating sleeve.

[0014] Furthermore, in the above-mentioned multi-screw welding arm, the radial cross-section of the screw fixing seat is circular, and the side surface of the screw fixing seat is provided with a cross-section that matches the threaded hole of the positioning pin.

[0015] Furthermore, in the above-mentioned multi-nail welding arm, insulating gaskets are provided between the two ends of the bolt insulation sleeve and the corresponding nuts.

[0016] The beneficial effects of this utility model are as follows: in the multi-screw welding arm of the utility model, the mounting platform of the sleeve mounting platform is provided with multiple mounting holes, which can fix multiple screws for simultaneous use. The electrode bolts are fixed with two nuts, which can adjust the position of the screws relative to the mounting platform, so that multiple screws can be adjusted and used in conjunction with each other. Furthermore, the screw fixing seat is threadedly connected to the screw fixing head. If the contact surface between the screw fixing head and the screw is damaged, only the screw fixing head needs to be replaced, and the entire screw fixing seat does not need to be remade, which saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a nail-planting sleeve in a specific embodiment of the present invention;

[0018] Figure 2 This is a schematic structural diagram of a multi-pin welding arm in a specific embodiment of the present invention;

[0019] 1. Nail fixing head; 2. Nail fixing seat; 21. Threaded hole; 22. Nail insulating sleeve; 3. Electrode bolt; 4. Nut; 5. Bolt insulating sleeve; 6. Insulating gasket;

[0020] 7. Mounting plate; 8. Driving device; 9. Protection plate. DETAILED DESCRIPTION

[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0022] Please refer to Figures 1 to 2 , the utility model provides a multi-pinning welding arm, including a pinning sleeve and a sleeve mounting platform;

[0023] The nail sleeve includes, from top to bottom, a nail fixing head 1, a nail fixing seat 2, and an electrode bolt 3; the nail fixing seat 2 is threadedly connected to the nail fixing head 1 and the electrode bolt 3, respectively; two nuts 4 are threadedly connected to the electrode bolt 3, and a bolt insulating sleeve 5 is provided between the two nuts 4; the nail fixing head 1 is provided with a nail through hole for the nail to pass through;

[0024] The sleeve mounting platform includes a mounting plate 7 and a driving device 8. The driving device 8 drives the mounting plate 7 to move vertically. A plurality of mounting holes are provided on the mounting plate 7. The electrode bolts 3 pass through the mounting holes and are fixed to the mounting holes by two nuts 4.

[0025] As can be seen from the above description, the beneficial effects of the present invention are as follows: in the multi-pin welding arm of the present invention, the mounting platform of the sleeve mounting platform is provided with multiple mounting holes, which can fix multiple pins for use at the same time, and two nuts 4 are used to fix the electrode bolts 3, so that the position of the pins relative to the mounting platform can be adjusted for use with multiple pins. Furthermore, the pin fixing seat 2 is threadedly connected to the pin fixing head 1; after the contact surface between the pin fixing head 1 and the pin is damaged, only the pin fixing head 1 needs to be replaced, and the entire pin fixing seat 2 does not need to be remade, which saves costs. Furthermore, the pin and the pin fixing head 1 are electrically conductive by being connected to the upper surface of the pin fixing head 1. After the screw end of the pin is inserted into the pin through-hole of the pin fixing head 1, the screw insulating sleeve 22 is used to insulate between the side wall of the pin through-hole to prevent conductive melting from damaging the screw.

[0026] Furthermore, in the above-mentioned multi-spiking welding arm, three mounting holes are provided on the mounting plate 7 .

[0027] It can be seen from the above description that the mounting plate 7 can be installed with any number of mounting holes as needed.

[0028] Furthermore, in the above-mentioned multi-nail welding arm, the driving device 8 includes a hydraulic cylinder, which drives the mounting plate 7 to move in the vertical direction.

[0029] Furthermore, in the above-mentioned multi-nail welding arm, the hydraulic cylinder includes a telescopic rod, which drives the mounting plate 7 to move in the vertical direction, and a protective plate 9 is provided on the side of the telescopic rod.

[0030] It can be seen from the above description that the provision of the protection plate 9 protects the stable operation of the hydraulic cylinder.

[0031] Furthermore, in the above-mentioned multi-screw welding arm, a screw insulating sleeve 22 is provided in the screw fixing seat 2; one end of the screw with a thread passes through the screw through hole and is sleeved in the screw insulating sleeve 22.

[0032] From the above description, it can be seen that the planting nail and the planting nail fixing head 1 are connected to the upper surface of the planting nail fixing head 1 for electrical conduction. After the screw end of the planting nail is inserted into the planting nail through hole of the planting nail fixing head 1, the planting nail insulating sleeve 22 is used to insulate between the side wall of the planting nail through hole to prevent the conductive melting from damaging the screw thread.

[0033] Furthermore, in the above-mentioned multi-screw welding arm, the screw insulating sleeve 22 is interference-connected with the screw fixing seat 2 .

[0034] As can be seen from the above description, the interference fit provides a way to fix the nail-planting insulating sleeve 22 and the nail-planting fixing seat 2, and can also avoid loose fixation.

[0035] Furthermore, in the above-mentioned multi-screw welding arm, the side wall of the screw fixing seat 2 is provided with a positioning pin threaded hole 21, and the ceramic positioning pin passes through the positioning pin threaded hole 21 and abuts against the screw insulating sleeve 22.

[0036] As can be seen from the above description, the ceramic positioning pin passes through the positioning pin threaded hole 21 and abuts against the planting nail insulating sleeve 22, which is used to fix the planting nail insulating sleeve 22 to prevent shaking.

[0037] Furthermore, in the above-mentioned multi-screw welding arm, the radial cross-section of the screw fixing seat 2 is circular, and the side surface of the screw fixing seat 2 is provided with a cross-section that matches the positioning pin threaded hole 21.

[0038] Furthermore, in the above-mentioned multi-screw welding arm, insulating gaskets 6 are provided between the two ends of the bolt insulation sleeve 5 and the corresponding nuts 4.

[0039] As can be seen from the above description, providing the insulating spacer 66 further enhances the insulation effect.

[0040] Example 1

[0041] Please refer to Figures 1 to 2 As shown, a multi-pinning welding arm includes a pinning sleeve and a sleeve mounting platform;

[0042] The nail sleeve includes, from top to bottom, a nail fixing head 1, a nail fixing seat 2, and an electrode bolt 3; the nail fixing seat 2 is threadedly connected to the nail fixing head 1 and the electrode bolt 3, respectively; two nuts 4 are threadedly connected to the electrode bolt 3, and a bolt insulating sleeve 5 is provided between the two nuts 4; the nail fixing head 1 is provided with a nail through hole for the nail to pass through;

[0043] The sleeve mounting platform includes a mounting plate 7 and a driving device 8. The driving device 8 drives the mounting plate 7 to move vertically. A plurality of mounting holes are provided on the mounting plate 7. The electrode bolts 3 pass through the mounting holes and are fixed to the mounting holes by two nuts 4.

[0044] In the aforementioned multi-screw welding arm, the mounting plate 7 is provided with three mounting holes. The drive device 8 includes a hydraulic cylinder that drives the mounting plate 7 vertically. The hydraulic cylinder includes a telescopic rod that drives the mounting plate 7 vertically. The side of the telescopic rod is provided with a protective plate 9.

[0045] In the aforementioned multi-pin welding arm, the pin holder 2 is provided with a pin insulating sleeve 22; the threaded end of the pin passes through the pin through-hole and is sleeved within the pin insulating sleeve 22. The pin insulating sleeve 22 is interference-fitted to the pin holder 2. The sidewall of the pin holder 2 is provided with a locating pin threaded hole 21, through which a ceramic locating pin abuts against the pin insulating sleeve 22. The radial cross-section of the pin holder 2 is circular, and the side of the pin holder 2 is provided with a cross-section that matches the locating pin threaded hole 21.

[0046] Use of the above multi-pin welding arm:

[0047] The threaded end of the planting nail is passed through the planting nail through hole of the planting nail fixing head 1 and is sleeved in the planting nail insulating sleeve 22. The ceramic positioning pin passes through the positioning pin threaded hole 21 and abuts against the planting nail insulating sleeve 22 to fix the planting nail insulating sleeve 22 to prevent shaking.

[0048] The bolt insulation sleeve 5 is clamped on the mounting hole of the mounting plate 7, and the positions of the two nuts 4 on the electrode bolt 3 are adjusted. The driving device 8 drives the mounting plate 7 to move vertically, and then the welding positioning is performed;

[0049] After adjustment, with the cooperation of welding equipment, the welding clamp works, the upper electrode and the electrode bolt 3 are electrically conductive, the electrode bolt 3 is pressurized and energized, and the electrical conduction is sequentially transmitted to the nail fixing seat 2, the nail fixing head 1 and the nail;

[0050] The lower electrode contacts the plate to be welded, and the lower electrode transfers energy through the plate, thereby realizing the closed power supply of the upper and lower electrodes. The contact part between the planting nail and the plate is quickly melted by the current, so that the planting nail can be welded to the plate quickly and stably.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A multi-pin welding arm, characterized in that: Includes a nailing sleeve and a sleeve mounting platform; The nail sleeve includes a nail fixing head, a nail fixing seat and an electrode bolt from top to bottom; the nail fixing seat is threadedly connected to the nail fixing head and the electrode bolt respectively, and two nuts are threadedly connected to the electrode bolt, and a bolt insulating sleeve is provided between the two nuts; the nail fixing head is provided with a nail through hole for the nail to pass through; The sleeve mounting platform includes a mounting plate and a driving device, wherein the driving device drives the mounting plate to move in a vertical direction. A plurality of mounting holes are provided on the mounting plate, and the electrode bolts pass through the mounting holes and are fixed on the mounting holes by two nuts.

2. The multi-pin welding arm according to claim 1, characterized in that: The mounting plate is provided with three mounting holes.

3. The multi-pin welding arm according to claim 1, characterized in that: The driving device includes a hydraulic cylinder, which drives the mounting plate to move in a vertical direction.

4. The multi-pin welding arm according to claim 3, characterized in that: The hydraulic cylinder includes a telescopic rod, which drives the mounting plate to move in a vertical direction. A protective plate is provided on the side of the telescopic rod.

5. The multi-pin welding arm according to claim 1, characterized in that: A planting nail insulating sleeve is provided in the planting nail fixing seat; one end of the planting nail with a thread passes through the planting nail through hole and is sleeved in the planting nail insulating sleeve.

6. The multi-pin welding arm according to claim 1, characterized in that: The nail-planting insulating sleeve is interference-connected with the nail-planting fixing seat.

7. The multi-pin welding arm according to claim 1, characterized in that: A positioning pin threaded hole is provided on the side wall of the planting pin fixing seat, and the ceramic positioning pin passes through the positioning pin threaded hole and abuts against the planting pin insulating sleeve.

8. The multi-pin welding arm according to claim 4, characterized in that: The radial cross-section of the nail fixing seat is circular, and the side surface of the nail fixing seat is provided with a section that matches the threaded hole of the positioning pin.

9. The multi-pin welding arm according to claim 1, characterized in that: Insulating washers are provided between the two ends of the bolt insulating sleeve and the corresponding nuts.

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