Nail-planting welding sleeve

Abstract

The utility model relates to the technical field of welding, in particular to a stud welding sleeve which sequentially comprises a stud fixing head, a stud fixing seat and an electrode bolt from top to bottom. The stud fixing seat is respectively in threaded connection with the stud fixing head and the electrode bolt; the electrode bolt is in threaded connection with two nuts, and a bolt insulation sleeve is arranged between the two nuts; a planting nail through hole through which a planting nail passes is formed in the planting nail fixing head. The utility model has the beneficial effects that the planting nail fixing seat is in threaded connection with the planting nail fixing head, and after the contact surface of the planting nail fixing head and the planting nail is sunken and damaged, only the planting nail fixing head needs to be replaced, and the whole planting nail fixing seat does not need to be remanufactured, so that the cost is saved. Furthermore, the planting nail and the planting nail fixing head are connected through the upper surface of the planting nail fixing head for electric conduction, after the thread end of the planting nail is inserted into the planting nail through hole of the planting nail fixing head, the thread end of the planting nail and the side wall of the planting nail through hole are insulated through a planting nail insulation sleeve, and damage to threads due to electric conduction melting is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a nail welding sleeve. 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] Among automotive welded parts, some become auto parts directly after stamping, while others require welding after stamping. Automotive chassis components are typically welded, requiring high-current welding machines. During welding, the pins must be pressurized and energized throughout the sleeve mechanism to weld the pins to the part. Repeated welding can cause the contact surface between the pins and the pin holder to dent, necessitating frequent replacement and increasing costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a nail welding sleeve which saves cost and can protect the screw threads of the nail.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: providing a nail welding sleeve, which comprises 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;

[0006] Two nuts are threadedly connected on the electrode bolt, and a bolt insulating sleeve is provided between the two nuts;

[0007] The nail fixing head is provided with a nail through hole for the nail to pass through.

[0008] Furthermore, in the above-mentioned nail welding sleeve, a nail insulating sleeve is provided in the nail fixing seat; the threaded end of the nail passes through the nail through hole and is sleeved in the nail insulating sleeve.

[0009] Furthermore, in the above-mentioned nail-planting welding sleeve, the nail-planting insulating sleeve is interference-connected with the nail-planting fixing seat.

[0010] Furthermore, in the above-mentioned nail welding sleeve, the side wall of the nail 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 nail insulating sleeve.

[0011] Furthermore, in the above-mentioned nail welding sleeve, the radial cross-section of the nail fixing seat is circular, and the side surface of the nail fixing seat is provided with a cross-section that matches the threaded hole of the positioning pin.

[0012] Furthermore, in the above-mentioned nail-planting welding sleeve, the radial cross-section of the nail-planting fixing seat is a regular hexagon.

[0013] Furthermore, in the above-mentioned nail-planting welding sleeve, insulating gaskets are provided between the two ends of the bolt insulation sleeve and the corresponding nuts.

[0014] Furthermore, in the above-mentioned nail-planting welding sleeve, the end of the nail-planting fixing head is truncated cone-shaped.

[0015] Furthermore, in the above-mentioned nail-planting welding sleeve, the nut is a hexagonal nut.

[0016] Furthermore, in the above-mentioned nail welding sleeve, the nail fixing head is provided with an internal thread, and the nail fixing seat is provided with an external thread matching the internal thread of the nail fixing head.

[0017] The beneficial effect of the present invention is that in the nail welding sleeve of the present invention, the nail fixing seat is threadedly connected to the nail fixing head. After the contact surface between the nail fixing head and the nail is damaged, only the nail fixing head needs to be replaced, and the entire nail fixing seat does not need to be remade, which saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a nail-planting welding sleeve in a specific embodiment of the present invention;

[0019] Figure 2 This is a schematic structural diagram of the nail-planting welding sleeve in a specific embodiment of the present invention when in use;

[0020] 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. 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 nail-planting welding sleeve, which comprises a nail-planting fixing head 1, a nail-planting fixing seat 2 and an electrode bolt 3 from top to bottom; the nail-planting fixing seat 2 is threadedly connected to the nail-planting fixing head 1 and the electrode bolt 3 respectively;

[0023] The electrode bolt 3 is threadedly connected to two nuts 4, and a bolt insulating sleeve 5 is provided between the two nuts 4;

[0024] The nail fixing head 1 is provided with a nail through hole for the nail to pass through.

[0025] From the above description, it can be seen that the beneficial effect of the present invention is that: in the nail welding sleeve of the present invention, the nail fixing seat 2 is threadedly connected to the nail fixing head 1. After the contact surface between the nail fixing head 1 and the nail is concave and damaged, only the nail fixing head 1 needs to be replaced, and the entire nail fixing seat 2 does not need to be remade, which saves costs.

[0026] Furthermore, in the above-mentioned nail welding sleeve, a nail insulating sleeve 22 is provided in the nail fixing seat 2; the threaded end of the nail passes through the nail through hole and is sleeved in the nail insulating sleeve 22.

[0027] 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.

[0028] Furthermore, in the above-mentioned nail-planting welding sleeve, the nail-planting insulating sleeve 22 is interference-connected with the nail-planting fixing seat 2.

[0029] 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.

[0030] Furthermore, in the above-mentioned nail welding sleeve, the side wall of the nail 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 nail insulating sleeve 22.

[0031] 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.

[0032] Furthermore, in the above-mentioned nail-planting welding sleeve, the radial cross-section of the nail-planting fixing seat 2 is circular, and the side surface of the nail-planting fixing seat 2 is provided with a cross-section that matches the positioning pin threaded hole 21.

[0033] As can be seen from the above description, providing the cut surface facilitates the use of the ceramic locating pin.

[0034] Furthermore, in the above-mentioned nail-planting welding sleeve, the radial cross-section of the nail-planting fixing seat 2 is a regular hexagon.

[0035] Furthermore, in the above-mentioned nail-planting welding sleeve, insulating gaskets 6 are provided between the two ends of the bolt insulation sleeve 5 and the corresponding nuts 4.

[0036] It can be seen from the above description that the provision of the insulating spacer 6 further enhances the insulation effect.

[0037] Furthermore, in the above-mentioned nail-planting welding sleeve, the end of the nail-planting fixing head 1 is truncated cone-shaped.

[0038] Furthermore, in the above-mentioned nail-planting welding sleeve, the nut 4 is a hexagonal nut 4.

[0039] Furthermore, in the above-mentioned nail welding sleeve, the nail fixing head 1 is provided with an internal thread, and the nail fixing seat 2 is provided with an external thread matching the internal thread of the nail fixing head 1.

[0040] Example 1

[0041] Please refer to Figures 1 to 2 As shown, a nail welding 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;

[0042] The electrode bolt 3 is threadedly connected to two nuts 4, and a bolt insulating sleeve 5 is provided between the two nuts 4;

[0043] The nail fixing head 1 is provided with a nail through hole for the nail to pass through.

[0044] In the above-mentioned nail welding sleeve, the nail fixing base 2 is provided with a nail insulating sleeve 22; the threaded end of the nail passes through the nail through hole and is sleeved in the nail insulating sleeve 22. The side wall of the nail fixing base 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 the nail insulating sleeve 22.

[0045] The radial cross section of the nail fixing seat 2 is circular, and the side of the nail fixing seat 2 is provided with a section that matches the positioning pin threaded hole 21. Insulating washers 6 are provided between the two ends of the bolt insulation sleeve 5 and the corresponding nut 4.

[0046] The end of the nail fixing head 1 is truncated cone-shaped. The nut 4 is a hexagonal nut 4. The nail fixing head 1 is provided with an internal thread, and the nail fixing seat 2 is provided with an external thread matching the internal thread of the nail fixing head 1.

[0047] Use of the above-mentioned nail welding sleeve:

[0048] 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.

[0049] The bolt insulation sleeve 5 is fixed by a fixture, and the positions of the two nuts 4 on the electrode bolt 3 are adjusted, and then welding is performed for positioning;

[0050] The plate to be welded is positioned and aligned with the fixture. With the cooperation of the 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 current is sequentially transmitted to the nail fixing seat 2, the nail fixing head 1 and the nail;

[0051] 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.

[0052] 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 nail welding sleeve, characterized in that: From top to bottom, it includes a nail fixing head, a nail fixing seat and an electrode bolt; the nail fixing seat is threadedly connected to the nail fixing head and the electrode bolt respectively; Two nuts are threadedly connected on 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.

2. The nail-planting welding sleeve 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.

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

4. The nail-planting welding sleeve 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.

5. The nail-planting welding sleeve 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.

6. The nail-planting welding sleeve according to claim 1, characterized in that: The radial cross section of the nail fixing seat is a regular hexagon.

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

8. The nail-planting welding sleeve according to claim 1, characterized in that: The end of the nail fixing head is truncated cone-shaped.

9. The nail-planting welding sleeve according to claim 1, characterized in that: The nut is a hexagonal nut.

10. The nail-planting welding sleeve according to claim 1, characterized in that: The nail fixing head is provided with an internal thread, and the nail fixing seat is provided with an external thread matching the internal thread of the nail fixing head.

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