CN204277202U - Projection welding bottom electrode - Google Patents
Projection welding bottom electrode Download PDFInfo
- Publication number
- CN204277202U CN204277202U CN201420741602.8U CN201420741602U CN204277202U CN 204277202 U CN204277202 U CN 204277202U CN 201420741602 U CN201420741602 U CN 201420741602U CN 204277202 U CN204277202 U CN 204277202U
- Authority
- CN
- China
- Prior art keywords
- bottom electrode
- cap
- boss
- lower electrode
- electrode cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Resistance Welding (AREA)
Abstract
The utility model belongs to resistance welding techniques field, proposes a kind of projection welding bottom electrode, and the projection welding bottom electrode of proposition includes lower electrode holder (5), bottom electrode cap (2), mandrel body (1) spring (3) and jackscrew (4); The cap body that described bottom electrode cap (2) is lower surface opening; Described lower electrode holder (5) upper surface has boss, and described boss is the hollow cylinder in upper end; The described boss of lower electrode holder (5) upper surface is positioned at the center cavity of described bottom electrode cap (2), and described boss and described bottom electrode cap (2) adopt matched in clearance; The step surface of described lower electrode holder (5) upper surface and the lower surface plane contact of bottom electrode cap; Described bottom electrode cap (2) is provided with to lock the jackscrew (4) of boss described in lower electrode holder, the utility model improves the service life of bottom electrode cap and lower electrode holder.
Description
Technical field
The utility model belongs to resistance welding techniques field, relates generally to a kind of projection welding bottom electrode.
Background technology
As shown in Figure 1, projection welding bottom electrode just in use includes lower electrode holder, bottom electrode cap, mandrel body, spring and locking jackscrew; Lower electrode holder and bottom electrode cap are all adopt the good copper alloy material of electric conductivity, both connected modes are for being threaded, operationally need upper/lower electrode to produce voltage difference and exert pressure and just can complete the resistance melting weld job of project-welding nut, produced downforce of exerting pressure needs the screw thread be connected with lower electrode holder through bottom electrode cap to be delivered on lower electrode holder.And exerting pressure repeatedly makes copper screw thread be easy to conquassation to damage, thus cause bottom electrode cap and lower electrode holder scrap phenomenon.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model proposes a kind of projection welding bottom electrode.
The utility model adopts following technical scheme for completing foregoing invention task:
A kind of projection welding bottom electrode, described projection welding bottom electrode includes lower electrode holder, bottom electrode cap, mandrel body, spring and jackscrew; Described bottom electrode cap is the cap body of lower ending opening; Described lower electrode holder upper end has boss, and described boss is the hollow cylinder in upper end; The described boss of lower electrode holder upper center is positioned at the center cavity of described bottom electrode cap, and described boss and described bottom electrode cap adopt matched in clearance; The step surface of described lower electrode holder upper end and the lower surface plane contact of bottom electrode cap; Described bottom electrode cap is provided with to lock the jackscrew of boss described in lower electrode holder.
A kind of projection welding bottom electrode that the utility model proposes, matched in clearance is adopted between lower electrode holder and bottom electrode cap, and the mode of being locked by jackscrew replaces the mode be threaded, change the formula that is threaded in original structure into plug-in, the time changing bottom electrode cap greatly reduces; After modified node method, the service life of bottom electrode cap and lower electrode holder extends more than 2 times; The precision repeating to assemble electrode cap improves, and avoids the height error being threaded into generation not in place; The downforce produced during weld job is directly delivered to welding machine pedestal by the step surface of bottom electrode cap end face and lower electrode holder.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, mandrel body, 2, bottom electrode cap, 3, spring, 4, jackscrew, 5, lower electrode holder.
Detailed description of the invention
With embodiment, this practical design is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of projection welding bottom electrode, described projection welding bottom electrode includes lower electrode holder 5, bottom electrode cap 2, mandrel body 1, spring 3 and jackscrew 4; Described bottom electrode cap 2 is the cylindrical shell of lower ending opening, and the upper surface of described bottom electrode cap 2 has the through hole passed for mandrel body 1; The upper end of described lower electrode holder 5 is provided with boss, and described boss is the hollow cylinder in upper end; Described boss in the middle part of lower electrode holder 5 upper surface is positioned at the center cavity of described bottom electrode cap 2, and described boss and described bottom electrode cap 2 matched in clearance; The described step surface of lower electrode holder 5 upper surface and the lower surface plane contact of bottom electrode cap; Described bottom electrode cap 2 is provided with to lock the jackscrew 4 of boss described in lower electrode holder; During installation, the lower end of described mandrel body 1 is positioned at the center cavity of bottom electrode cap 2, the lower end of mandrel body 1 contacts with the spring 3 be placed in boss center cavity, presses down after bottom electrode cap 2 makes it contact with the step surface of lower electrode holder 5 and locks jackscrew 4, thus complete the installation of bottom electrode.
Claims (1)
1. a projection welding bottom electrode, described projection welding bottom electrode includes lower electrode holder (5), bottom electrode cap (2), mandrel body (1), spring (3) and jackscrew (4); The cap body that described bottom electrode cap (2) is lower ending opening; It is characterized in that: described lower electrode holder (5) upper end has boss, described boss is the hollow cylinder in upper end; The described boss of lower electrode holder (5) upper center is positioned at the center cavity of described bottom electrode cap (2), and described boss and described bottom electrode cap (2) adopt matched in clearance; The step surface of described lower electrode holder (5) upper end and the lower surface plane contact of bottom electrode cap; Described bottom electrode cap (2) is provided with the jackscrew (4) for locking boss described in lower electrode holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420741602.8U CN204277202U (en) | 2014-12-02 | 2014-12-02 | Projection welding bottom electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420741602.8U CN204277202U (en) | 2014-12-02 | 2014-12-02 | Projection welding bottom electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204277202U true CN204277202U (en) | 2015-04-22 |
Family
ID=52860398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420741602.8U Expired - Fee Related CN204277202U (en) | 2014-12-02 | 2014-12-02 | Projection welding bottom electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204277202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057869A (en) * | 2015-07-15 | 2015-11-18 | 宣城市华菱精工科技股份有限公司 | Sectional type butt-welding electrode |
-
2014
- 2014-12-02 CN CN201420741602.8U patent/CN204277202U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057869A (en) * | 2015-07-15 | 2015-11-18 | 宣城市华菱精工科技股份有限公司 | Sectional type butt-welding electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20161202 |