Electrode mechanism for projection welding of metal pipe fittings
A technology of metal pipe fittings and electrode mechanism, applied in pressure electrodes, electrode features, welding equipment, etc., can solve the problems of over-burning of water pipes, increase in production cost, increase in production processes, etc., and achieve firm welding, short welding time, and welding damage. the effect of elimination
Active Publication Date: 2018-02-06
TANGSHAN KAIYUAN AUTOWELDING SYST
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Problems solved by technology
Although the direct pressure welding of the upper and lower electrodes has the advantages of short welding time, no smoke and dust, and reduced air pollution, the direct pressure welding causes serious overheating of the outlet pipe of the water heater, and deforms the thread connecting the outlet pipe and the ball valve. , in order to eliminate the deformation of the thread, the process of trimming the thread deformation after welding is added, which leads to an increase in the production process and an increase in the production cost
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[0015] The present invention consists of a connecting plate 1, a fixing seat 2, a water pipe joint 3, a jacket 4, an electrode fixing sleeve 5, a water cooling sleeve 6, a limit sleeve 7, a plug 8, an O-ring 9, a strong magnet 10, and an electrode mandrel 11 , connecting screw 12 and electrode 13.
[0016] figure 2 Shown, the electrode mechanism 23 of the present invention is installed on the projection welding machine. The projection welding machine includes a projection welding machine body 14, a welding machine gas circuit 15, a welding transformer 16, a cooling water circuit 17, a solenoid valve 18, a pressurized cylinder 19, a pressurized head 20, a raised welding pad 21, a movable conductor 22, and an electrode Mechanism 23 , convex pad 24 . The projection welding machine body 14 is fixed on the ground, the pressure head 20 is installed on the front end of the upper bracket of the projection welding machine body 14, the pressure cylinder 19 is installed above the pres...
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The invention belongs to the technical field of resistance projection welding machines and discloses an electrode mechanism for metal pipe projection welding which is used for welding a water heater liner and a water outlet pipe. According to the technical scheme, a connecting board is a square board; the connecting board is fixed on the lower plane of an upper projection welding disc of a projection machine; a fixing seat is an annular cylinder; the fixing seat is connected with the lower board surface of the connecting board; the connecting board is opposite to a central inner hole of the fixing seat; two water pipe connectors are correspondingly fixed at the left side and the right side of the fixing seat; an electrode fixing sleeve is fixed in the inner hole of the fixing seat; an electrode is installed in the electrode fixing sleeve; an electrode mandrel is connected in the electrode; a limiting sleeve is installed at the lower end of an inner hole of the electrode fixing sleeve; and the diameter of an inner hole of the limiting sleeve is matched with the outer diameter of the water outlet pipe. According to the electrode mechanism for metal pipe projection welding, the structure is reasonable; the welding is solid; the quality is stable; the welding time is short; no smoke dust is generated; a connecting thread of the water outlet pipe can be protected from hurting by welding; an overburning phenomenon of the water outlet pipe is eliminated; producing efficiency is remarkably improved; and the producing cost is reduced.
Description
technical field [0001] The invention relates to an electrode mechanism of a resistance projection welding machine for welding a water heater liner and a water outlet pipe, and belongs to the technical field of resistance projection welding machines. Background technique [0002] In the production process of water heaters, it is necessary to weld the inner tank of the water heater and the outlet pipe together. The current traditional welding method is the gas shielded welding method. This welding method has long welding time, low efficiency, large smoke and dust, and high cost. production development needs. With the improvement of the welding process and the requirements for environmental protection, the welding method of the inner tank and the outlet pipe of the water heater has introduced the resistance projection welding welding method, and the upper and lower electrodes direct pressure welding is used in the resistance projection welding welding method. Although the dire...
Claims
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IPC IPC(8): B23K11/14B23K11/30B23K11/31B23K11/36
CPCB23K11/14B23K11/3009B23K11/31B23K11/36
Inventor 李建敏李建民
Owner TANGSHAN KAIYUAN AUTOWELDING SYST