CN2582811Y - Finger type spot-welding gun - Google Patents
Finger type spot-welding gun Download PDFInfo
- Publication number
- CN2582811Y CN2582811Y CN 02279944 CN02279944U CN2582811Y CN 2582811 Y CN2582811 Y CN 2582811Y CN 02279944 CN02279944 CN 02279944 CN 02279944 U CN02279944 U CN 02279944U CN 2582811 Y CN2582811 Y CN 2582811Y
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- CN
- China
- Prior art keywords
- welding
- spring
- handle
- microswitch
- depression bar
- 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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Abstract
The utility model relates to a finger type spot-welding gun, which comprises a gun body and a handle, wherein, the handle is made into an insulated attrition-resistant plastic frame structure, the gun body comprises a compression rod which is connected with the gun body by a shaft sleeve which is arranged in the back end of the handle, a spring frame, a spring, regulating nuts, regulating screw nails, a microswitch frame, a microswitch, a welding arm, welding fingers, and a return spring, wherein, the spring frame and the spring are arranged on the lower part of the front end of the compression rod, the regulating nuts and the regulating screw nails are sheathed in the spring, the microswitch frame and the microswitch are arranged below the compression rod, the welding arm is arranged on the front end of the handle, the welding fingers are connected with the welding arm, one end of the return spring is arranged on the welding arm, and the other end of the return spring is arranged on the inner wall of the front end of the handle. A compression rod supporting head is arranged on the front end of the compression rod, the front ends of the welding fingers are provided with silver tungsten alloy electrodes, and the microswitch is connected with a welding power source control device. When the utility model is adopted to proceed spot-welding operation, spark splash can be avoided, and the operation is convenient. Because the two electrodes are arranged on one side, and the welding electrodes can not enter a closed type welding piece; therefore, the grade of a kinescope can be enhanced. The exterior of the utility model is designed into a pistol handle shape which is convenient for gripping and holding by operators.
Description
Technical field
The utility model relates to welding equipment, particularly a kind of finger-type spot-welding gun.
Background technology
The spot welding mode is generally adopted in the welding of the metal parts in the color picture tube, and employing is a kind of spot welding mode of resistance form.This spot welding mode utilizes electric current to pass through the resistance heat of weldment and contact position generation thereof, and the weldment local heat to the partial melting state, is exerted pressure then, and separating metal is linked together.
Shadow mask is a metal parts important in the color picture tube, is the color-selecting component of color picture tube, and shadow mask is as the template of optical exposure in manufacturing process.A pair of contact spring sheet is arranged on the assembly of shadow mask, and promptly screen is bored (PF, Panel Funnel) brace, and its effect is to connect screen and cone, realizes being electrically connected between cone graphite and screen and the shadow mask.PF brace system is made by non-magnetic rustproof steel (SNS-TH), and its thickness is 0.15mm, and point is welded on the shadow mask frame.The material of shadow mask frame is mild steel (FE-WA), and its thickness is 1.2mm.Spot welding between PF brace and the shadow mask frame must keep enough weld strengths, keeps not coming off under 450 ℃ furnace temperature, and still has elasticity, keeps good electrical contact by this elastic energy and cone graphite.
Spot welding is the important technology of one in the kinescope manufacture process.Spot weld operation is understood Mars unavoidably and is splashed, and the residue that splashes then can cause shadow mask blocked hole.Usually putting a foam in advance and mould sheet when spot welding on shadow mask, carry out spot welding then, also is to drop on foam to mould on the sheet even the residue of splashing is arranged, but foam is moulded sheet and directly contacted with shadow mask.It is that the ultra low carbon steel slab of 0.1～0.22mm is made that material for shadow mask generally adopts thickness, and its dimensional accuracy is high, can not produce bending in process of production, and the field trash plug-hole can not be arranged.Foam is moulded sheet and is directly contacted with shadow mask, if misoperation can make the shadow mask distortion.Do not mould sheet if do not change foam for a long time, will cause the foam break flour to drop on the shadow mask, will bring bad hidden danger to road, back production process thus.
Summary of the invention
Task of the present utility model provides a kind of new finger-type spot-welding gun, the problem that the Mars that it has been taken place when having solved original spot welding splashes.
The technical solution of the utility model is as follows:
A kind of finger-type spot-welding gun, it comprises rifle body and handle, described handle is made the wear-resisting plastic frame structure of insulation; Described rifle body comprises the depression bar that connects by the axle sleeve that is installed in the handle rear end, be installed in the spring(-supported) mount and the spring of depression bar front end below, be sleeved on adjusting nut and adjustment screw in the spring, be placed in microswitch frame and microswitch below the depression bar, be installed in the welding arm of handle front end, the welding finger that is connected with the welding arm, and wherein an end is placed on the welding arm, the other end is placed in the back-moving spring of handle front inner wall, be provided with depression bar above the depression bar front end and prop up head, the front end of welding finger is equipped with the silver tungsten electrode, and microswitch is connected with source of welding current control device.
When adopting the utility model to carry out the spot welding operation, can prevent that Mars from splashing, it is easy to operate, because two electrodes are in the same side, but the inaccessiable closed weldment of welding electrode has improved the kinescope grade thus.
Finger-type spot-welding gun of the present utility model not only is used for the welding of color picture tube metal parts, and can be used for weld job in other automatic production line, be particularly useful for the various types of metal works in the welded closure formula structure, for example the welding occasion that can not put into of one of them electrode.If robot hand has been installed finger-type spot-welding gun of the present utility model, just can be engaged in automated job.Exterior design of the present utility model becomes the pistol handle shape, grips with the handled easily personnel.
Description of drawings
Accompanying drawing is the structural representation of a kind of finger-type spot-welding gun of the present utility model.
The specific embodiment
Referring to accompanying drawing, a kind of finger-type spot-welding gun of the present utility model is made up of rifle body and handle.Handle 1 is made the wear-resisting plastic frame structure of insulation, can be made by nylon.The rifle body comprises parts such as depression bar 2, spring(-supported) mount 3 and spring 4, adjusting nut 5 and adjustment screw 6, microswitch frame 7 and microswitch 8, welding arm 9, welding finger 10 and back-moving spring 11.
Depression bar 2 rear ends are connected on the axle sleeve 12 that is installed in handle 1 rear end, and depression bar 2 can rotate around axle sleeve 12.Depression bar 2 front ends below mounting spring frame 3 and spring 4, spring 4 upper ends are sleeved on the spring base 16 of depression bar 2 bottom surfaces, and adjusting nut 5 and adjustment screw 6 are sleeved in the spring 4.Settle microswitch frame 7 and microswitch 8 below depression bar 2, microswitch 8 can rotate with depression bar 2.Be provided with depression bar above depression bar 2 front ends and prop up 13, depression bar props up 13 because the elastic forces of regulating spring 4 contact it all the time with handle 1 inwall contact point.
At handle 1 front end installing welding arm 9, welding finger 10 is connected with welding arm 9.A wherein end of back-moving spring 11 is placed on the welding arm 9, and the other end of back-moving spring 11 is placed on the inwall of handle 1 front end.The front end of welding finger 10 is equipped with silver tungsten electrode 14.Microswitch 8 is connected with source of welding current control device.The contact of microswitch 8 contacts with welding arm 9 all the time, and maintenance compressive state, when depression bar 2 after axle sleeve 12 rotates counterclockwise, the contact of microswitch 8 just breaks away from welding arm 9, and become relaxation state by compressive state, microswitch 8 conductings excite source of welding current control device, make the source of welding current discharge powerful welding current, realize the spot welding of PF brace and shadow mask frame.
When operating personnel's hand torch handle, when making the silver tungsten electrode press to welded part PF brace, the PF brace promptly is a welding pressure to the reaction force of electrode, this welding pressure is pressed onto on the regulating spring by adjustment screw, adjusting nut, be delivered on the depression bar by regulating spring again, and depression bar can rotate around axle sleeve, and welding pressure is delivered on the handle.Because welding pressure is delivered on the depression bar by regulating spring by the welding arm, so when welding pressure surpassed the preset pressure of regulating spring, regulating spring just formed compression, this moment, depression bar rotated counterclockwise around axle sleeve.Spring pressure is set by adjustment screw, and the decrement of spring is come into plain view by the peephole that is arranged at front end, and can set scale mark, is convenient to operating personnel and adjusts spring pressure aborning.Return spring pressure is very little, only plays reset response, does not relate to the adjustment of welding pressure.
The silver tungsten electrode can be provided with symmetrical two, and electrode position can be adjusted according to different weldment profiles.For fear of misoperation, two electrodes are respectively established a microswitch respectively during design, and with two microswitch series connection, i.e. logicals.Have only when two electrodes and depress simultaneously, when making two microswitch logicals, just discharge welding current.When ordinary maintenance, only need dismounting left panel and right panel, just can change the spring and the microswitch of both sides easily.
Claims (1)
1. finger-type spot-welding gun, it comprises rifle body and handle, it is characterized in that, described handle is made the wear-resisting plastic frame structure of insulation; Described rifle body comprises the depression bar that connects by the axle sleeve that is installed in the handle rear end, be installed in the spring(-supported) mount and the spring of depression bar front end below, be sleeved on adjusting nut and adjustment screw in the spring, be placed in microswitch frame and microswitch below the depression bar, be installed in the welding arm of handle front end, the welding finger that is connected with the welding arm, and wherein an end is placed on the welding arm, the other end is placed in the back-moving spring of handle front inner wall, be provided with depression bar above the depression bar front end and prop up head, the front end of welding finger is equipped with the silver tungsten electrode, and microswitch is connected with source of welding current control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279944 CN2582811Y (en) | 2002-11-27 | 2002-11-27 | Finger type spot-welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279944 CN2582811Y (en) | 2002-11-27 | 2002-11-27 | Finger type spot-welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2582811Y true CN2582811Y (en) | 2003-10-29 |
Family
ID=33742864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279944 Expired - Fee Related CN2582811Y (en) | 2002-11-27 | 2002-11-27 | Finger type spot-welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2582811Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922117A (en) * | 2012-11-26 | 2013-02-13 | 力帆实业(集团)股份有限公司 | Single-faced welding gun |
| CN103567648A (en) * | 2012-08-02 | 2014-02-12 | 冯友新 | Multifunctional welding torch |
| CN104022763A (en) * | 2014-06-06 | 2014-09-03 | 北京国网富达科技发展有限责任公司 | Portable lifting appliance |
-
2002
- 2002-11-27 CN CN 02279944 patent/CN2582811Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567648A (en) * | 2012-08-02 | 2014-02-12 | 冯友新 | Multifunctional welding torch |
| CN102922117A (en) * | 2012-11-26 | 2013-02-13 | 力帆实业(集团)股份有限公司 | Single-faced welding gun |
| CN104022763A (en) * | 2014-06-06 | 2014-09-03 | 北京国网富达科技发展有限责任公司 | Portable lifting appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |