CN211192472U - Ceramic inner core ring copper electrode - Google Patents
Ceramic inner core ring copper electrode Download PDFInfo
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- CN211192472U CN211192472U CN201922406809.5U CN201922406809U CN211192472U CN 211192472 U CN211192472 U CN 211192472U CN 201922406809 U CN201922406809 U CN 201922406809U CN 211192472 U CN211192472 U CN 211192472U
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- ceramic
- nut
- electrode
- nut electrode
- locating pin
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Abstract
The utility model relates to a pottery inner core annular copper electrode relates to welding manufacturing technical field, including nut electrode holder, nut electrode lid, insulating pad, ceramic locating pin and spring, the blind hole has been seted up to the upper end of nut electrode holder, and the blind hole sets gradually spring, insulating pad and ceramic locating pin from inside to outside, the upper portion of ceramic locating pin is conical, the middle part is cylindrical, the lower part is the round platform shape, and the diameter of round platform is crescent from the top down, and the through-hole has been seted up to the centre of nut electrode lid, and the through-hole diameter equals the diameter of the cylinder part of ceramic locating pin, and nut electrode lid from the top down overlaps outside ceramic locating pin and with nut electrode holder fixed connection. The utility model discloses a pottery inner core annular copper electrode through setting up non-conductive central pottery, finally forms circular cross section's resistance spot welding joint, has avoided defects such as burn-through, splash that welding current is too big or the welding time overlength causes effectively.
Description
Technical Field
The utility model relates to a welding manufacturing technical field specifically is a pottery inner core annular copper electrode.
Background
The resistance welding is a welding method using resistance heat as energy source, including using slag-resistant heat as energy source and solid resistance heat as energy source. Resistance welding is a welding method in which a contact surface between two workpieces is melted by resistance heat generated when a current is passed through the workpieces under a certain electrode pressure. A large current is typically used. To prevent contact surface arcing and forging of the weld metal, pressure must be applied at all times during the welding process. In such resistance welding, the surface of the welding workpiece is crucial to obtain stable welding quality. Therefore, the contact surfaces of the electrode with the workpiece and the workpiece must be cleaned before welding. With the development of the industries such as aerospace, electronics, automobiles, household appliances and the like, resistance welding is more and more emphasized. Meanwhile, higher requirements are also put forward on the quality of resistance welding. Fortunately, the development of microelectronic technology and the development of high-power thyristors and rectifiers in China provide conditions for the improvement of resistance welding technology. China has produced secondary rectification welders with excellent performance. The control box is composed of an integrated circuit and a microcomputer and is used for matching of a new welding machine and transformation of an old welding machine. The advanced closed-loop monitoring technology of constant current, dynamic resistance, thermal expansion and the like is widely applied in production. This will help to improve the quality of resistance welding and expand the application area of resistance welding.
However, when a large welding spot is required to be obtained from the high strength steel sheet, the welding process becomes very difficult because a large welding current or welding time causes a large defect of burning, spattering, etc.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem and providing a ceramic inner core annular copper electrode.
The technical scheme of the utility model is that: the ceramic inner core annular copper electrode comprises a nut electrode seat, a nut electrode cover, an insulating pad, a ceramic positioning pin and a spring, and is characterized in that,
the upper end of nut electrode holder seted up vertical ascending first blind hole, first blind hole has set gradually reciprocal anchorage's spring, insulating pad and ceramic locating pin from inside to outside, the upper portion of ceramic locating pin be conical, the middle part is cylindrical, the lower part is the round platform shape, wherein the diameter of the round platform shape of ceramic locating pin lower part is crescent from the top down, the through-hole has been seted up to the centre of nut electrode lid, the diameter of this through-hole equals the diameter of the cylinder portion of ceramic locating pin, nut electrode lid from the top down cover outside ceramic locating pin and with nut electrode holder fixed connection and make the spring compression.
Preferably, the inner side of the nut electrode holder is provided with an internal thread, the outer side of the nut electrode cover is provided with an external thread, and the internal thread of the nut electrode holder and the external thread of the nut electrode cover are matched with each other to enable the nut electrode holder and the nut electrode cover to be screwed.
Preferably, the bottom of the first blind hole on the nut electrode holder is provided with a fixing groove, the diameter of the fixing groove is equal to the outer diameter of the spring, and the lower end of the spring is fixed in the fixing groove.
Preferably, a round hole is formed in the side surface of the nut electrode holder, and the round hole is located at the bottom of the first blind hole and communicated with the first blind hole.
Preferably, the lower end of the nut electrode holder is provided with a second blind hole which is vertically downward.
Preferably, the upper end surface of the nut electrode cover is a smooth horizontal surface.
Preferably, the lower end of the through hole of the nut electrode cover is provided with a countersunk seat, and the countersunk seat of the nut electrode cover is matched with the round table at the lower part of the ceramic positioning pin.
Preferably, the nut electrode cover and the nut electrode seat are both made of copper.
Preferably, the ceramic positioning pin is made of ceramic.
Preferably, the insulating pad is made of rubber.
The technical effects of the utility model are that:
the utility model relates to an annular copper electrode of pottery inner core, including nut electrode holder, nut electrode lid, insulating pad, ceramic locating pin and spring, the upper end of nut electrode holder seted up vertical ascending first blind hole, first blind hole has set gradually reciprocal anchorage's spring, insulating pad and ceramic locating pin from inside to outside, the upper portion of ceramic locating pin for conical, the middle part be cylindrical, the lower part is the round platform shape, wherein the diameter of the round platform shape of ceramic locating pin lower part is crescent from the top down, the through-hole has been seted up to the centre of nut electrode lid, the diameter of this through-hole equals the diameter of the cylinder part of ceramic locating pin, nut electrode lid from the top down cover outside ceramic locating pin and with nut electrode holder fixed connection and make the spring compression. Through the arrangement of the non-conductive center ceramic, the resistance spot welding joint with the circular section is finally formed, and the defects of burnthrough, splashing and the like caused by overlarge welding current or overlong welding time are effectively avoided.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the nut electrode cap;
in the figure: 1. the ceramic positioning pin comprises a conical upper portion of the ceramic positioning pin, 2 nut electrode covers, 3 nut electrode seats, 5 cylindrical middle portions of the ceramic positioning pin, 6 circular truncated cone-shaped lower portions of the ceramic positioning pin, 7 first blind holes, 8 insulating pads, 9 springs, 10 circular holes, 11 second blind holes, 12 fixing grooves, 13 through holes and 14 countersunk seat portions.
Detailed Description
The first embodiment is as follows: referring to fig. 1-3, a ceramic inner core ring-shaped copper electrode includes a nut electrode holder, a nut electrode cover, an insulating pad, a ceramic positioning pin, and a spring;
the upper end of nut electrode holder seted up vertical ascending first blind hole, first blind hole has set gradually reciprocal anchorage's spring, insulating pad and ceramic locating pin from inside to outside, the upper portion of ceramic locating pin be conical, the middle part is cylindrical, the lower part is the round platform shape, wherein the diameter of the round platform shape of ceramic locating pin lower part is crescent from the top down, the through-hole has been seted up to the centre of nut electrode lid, the diameter of this through-hole equals the diameter of the cylinder portion of ceramic locating pin, nut electrode lid from the top down cover outside ceramic locating pin and with nut electrode holder fixed connection and make the spring compression.
The inside of nut electrode holder be provided with the internal thread, the outside of nut electrode lid is provided with the external screw thread, the internal thread of nut electrode holder mutually supports with the external screw thread of nut electrode lid and makes both connect soon, through threaded connection dismouting and maintenance more convenient.
The bottom of the first blind hole in the nut electrode holder is provided with a fixing groove, the diameter of the fixing groove is equal to the outer diameter of the spring, and the lower end of the spring is fixed in the fixing groove.
And a round hole is formed in the side surface of the nut electrode holder, is positioned at the bottom of the first blind hole and is communicated with the first blind hole. And the lower end of the nut electrode seat is provided with a second blind hole which is vertically downward and is used for connecting a lead.
The upper end surface of the nut electrode cover is a smooth horizontal plane. The lower end of the through hole of the nut electrode cover is provided with a countersunk seat, and the countersunk seat of the nut electrode cover is matched with the round table at the lower part of the ceramic positioning pin. The nut electrode cover and the nut electrode seat are made of copper. The ceramic positioning pin is made of ceramic. The insulating pad is made of rubber.
The using method comprises the following steps: the ceramic inner core annular copper electrode is fixed on a welding workbench, a workpiece to be welded is sequentially sleeved outside a ceramic positioning pin, the other electrode is pressurized from top to bottom to enable the two workpieces to be in close contact, then current is switched on, and during welding, because the central ceramic is not conductive, a resistance spot welding joint with a circular section is finally formed, so that the defects of burnthrough, splashing and the like caused by overlarge welding current or overlong welding time are effectively avoided.
Claims (10)
1. The ceramic inner core annular copper electrode comprises a nut electrode seat, a nut electrode cover, an insulating pad, a ceramic positioning pin and a spring, and is characterized in that,
the upper end of nut electrode holder seted up vertical ascending first blind hole, first blind hole has set gradually reciprocal anchorage's spring, insulating pad and ceramic locating pin from inside to outside, the upper portion of ceramic locating pin be conical, the middle part is cylindrical, the lower part is the round platform shape, wherein the diameter of the round platform shape of ceramic locating pin lower part is crescent from the top down, the through-hole has been seted up to the centre of nut electrode lid, the diameter of this through-hole equals the diameter of the cylinder portion of ceramic locating pin, nut electrode lid from the top down cover outside ceramic locating pin and with nut electrode holder fixed connection and make the spring compression.
2. The annular copper electrode with the ceramic inner core as claimed in claim 1, wherein the nut electrode holder is provided with an internal thread on the inner side, the nut electrode cover is provided with an external thread on the outer side, and the internal thread of the nut electrode holder and the external thread of the nut electrode cover are matched with each other to enable the nut electrode holder and the nut electrode cover to be screwed together.
3. The ring-shaped copper electrode with a ceramic inner core as claimed in claim 1, wherein the bottom of the first blind hole on the nut electrode holder is provided with a fixing groove, the diameter of the fixing groove is equal to the outer diameter of the spring, and the lower end of the spring is fixed in the fixing groove.
4. The ceramic inner core annular copper electrode as claimed in claim 1, wherein the side surface of the nut electrode holder is provided with a round hole, and the round hole is positioned at the bottom of the first blind hole and is communicated with the first blind hole.
5. The annular copper electrode with the ceramic inner core as claimed in claim 1, wherein the lower end of the nut electrode holder is provided with a second blind hole which is vertically downward.
6. The ceramic core ring copper electrode as claimed in claim 1, wherein the upper end surface of said nut electrode cap is a smooth horizontal surface.
7. The ceramic inner core annular copper electrode as claimed in claim 1, wherein a countersunk seat is provided at the lower end of the through hole of the nut electrode cap, and the countersunk seat of the nut electrode cap is matched with the circular truncated cone at the lower part of the ceramic positioning pin.
8. The annular copper electrode with a ceramic inner core as claimed in claim 1, wherein the nut electrode cover and the nut electrode holder are made of copper.
9. The ceramic core ring copper electrode of claim 1, wherein said ceramic locating pin is ceramic.
10. The ceramic core ring copper electrode as claimed in claim 1, wherein said insulating pad is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922406809.5U CN211192472U (en) | 2019-12-28 | 2019-12-28 | Ceramic inner core ring copper electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922406809.5U CN211192472U (en) | 2019-12-28 | 2019-12-28 | Ceramic inner core ring copper electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211192472U true CN211192472U (en) | 2020-08-07 |
Family
ID=71888514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922406809.5U Active CN211192472U (en) | 2019-12-28 | 2019-12-28 | Ceramic inner core ring copper electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211192472U (en) |
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2019
- 2019-12-28 CN CN201922406809.5U patent/CN211192472U/en active Active
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