CN113130139A

CN113130139A - Production process of silver target contact

Info

Publication number: CN113130139A
Application number: CN202110541162.6A
Authority: CN
Inventors: 粟春亮; 胡志明
Original assignee: Ningbo Shuncheng Electric Appliance Co ltd
Current assignee: Ningbo Shuncheng Electric Appliance Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-07-16
Anticipated expiration: 2041-05-18
Also published as: CN113130139B

Abstract

The invention discloses a production process of a silver target contact, which comprises the following steps: step one, casting step two, wire drawing step three, make contact first contact; secondly, washing, namely putting the punched contacts into a washing machine, adding water, pouring washing liquid, rotating the machine, and washing the contacts with water after the contacts are washed until no oil stains exist and the contacts are shiny; step four, packaging, wherein the cleaning machine in the step three comprises a protective box, a safety cover, a cleaning bin, a cleaning mechanism, a driving bin, a driving motor, a discharging bin, a washing bin, a rinsing bin, a feeding mechanism arranged at the lower part of the cleaning bin and a discharging mechanism arranged below the cleaning mechanism; through setting up the cleaning machine, can strengthen the greasy dirt cleaning work of contact, reduce the quantity of cleaner, using water wisely to realize automatic unloading.

Description

Production process of silver target contact

Technical Field

The invention belongs to the technical field of silver targets, and particularly relates to a production process of a silver target contact.

Background

It is known that silver has good conductivity but is easily corroded by sulfur, and therefore, silver is generally alloyed with other metals to reduce the rate of formation of silver sulfide and retard corrosion by sulfur. With the demand of modern industry, electrical equipment also advances from time to time, has wide application and a plurality of varieties, plays an increasingly important role, but is invariably a static contact with conductive electricity. At present, the static contact is active in each electric appliance part, the market of the static contact is absolutely available at present, and the static contact maintains stable expansion. Riveting silver contact is always operated by matching with a punch press manually, riveting yield and quality are unstable, and operators are easy to have occupational diseases and are quite dangerous. Palladium is resistant to attack by hydrofluoric, phosphoric, perchloric, hydrochloric and sulfuric vapors, but is readily soluble in aqua regia and hot sulfuric and concentrated nitric acids. Molten sodium hydroxide, sodium carbonate, sodium peroxide have an etching effect on palladium. The oxidation states of palladium are +2, +3, + 4. Palladium readily forms complex compounds such as K2[ PdCl4], K4[ Pd (CN)4], and the like. May be separated from the natural alloy of platinum metal. The reserves of palladium on the earth are rare, the mining and smelting are difficult, and the palladium belongs to the category of rare and precious metal series of gold, silver, platinum, palladium, ruthenium and iridium. The palladium content in the crust is 1X 10-6%, and is often dispersed in various minerals (such as raw platinum ore, nickel-copper sulfide ore, pentlandite, etc.) in alluvial deposit and sand deposit together with other platinum group elements. The independent minerals comprise hexapalladite, palladium-platinum ore, lead-tetrapalladium ore, antimony-palladium ore, bismuth-lead-palladium ore, tin-palladium ore and the like, and natural palladium is formed in a free state. The melting point of palladium is the lowest of the platinum group metals; in the course of working of silver target contact, will carry out cleaning work to the silver target contact that processing was accomplished, current technique needs earlier practical cleaner to wash in the cleaning process, later changes into the clear water and carries out the rinsing, can cause a large amount of water sources between, and the cleaner can not obtain make full use of, goes up the unloading and still needs the people-made going on, and efficiency is lower.

Disclosure of Invention

The invention provides a silver target contact production process which can solve the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a production process of a silver target contact comprises the following steps:

step one, casting: the silver-palladium alloy comprises the following components in parts by weight: sponge palladium 98.5: 1.5, putting the prepared raw materials of the silver plate and the sponge palladium into an intermediate frequency furnace in batches, turning on a power supply to heat, and stirring by using a stone grinding rod after the silver plate and the sponge palladium are completely dissolved; stirring twice in each furnace; fixing a casting mold, heating by using a fire gun, slowly pouring silver water into the mold after 10-20min, casting into a silver rod, opening the mold, taking out the silver rod, and cooling to room temperature;

step two, wire drawing:

rolling, namely taking one cast silver rod, using a first set of rolling machine to roll the silver rod into thin strips, and slowly extruding the silver rod once from large to small according to rolling holes until the rolling of a first pair of rolling holes is finished;

secondly, tempering, namely putting the rolled silver strips into a resistance furnace, turning on a power supply for heating, and controlling the temperature to be 900 ℃ at 700-;

thirdly, rolling the silver strips, namely putting the silver strips into a second rolling machine, burning the silver strips to be red, taking out the silver strips, cooling the silver strips, and slowly extruding the silver strips from large to small according to rolling holes until the rolling holes are completely rolled; putting the wire loops into a resistance furnace for tempering;

fourthly, drawing, namely taking out the silver wires in the resistance furnace for cooling, rolling the wire heads on a tip machine, and then penetrating through a die hole for drawing, wherein the die hole has hardness when the diameter is 300-480mm and needs tempering; taking out the tempered silver wire, cooling, continuing to roll the head, and sending the silver wire into a die for wire drawing until the silver wire is drawn out of the die;

step three, contact point making

Firstly, a contact point is formed, namely, a screw head is inserted into a feeding hole of a contact point machine, a feeding disc is well adjusted, a power supply is turned on, and the contact point machine automatically works;

secondly, washing, namely putting the punched contacts into a washing machine, adding water, pouring washing liquid, rotating the machine, and washing the contacts with water after the contacts are washed until no oil stains exist and the contacts are shiny;

thirdly, drying, namely putting the cleaned contact into a plate and putting the plate into an oven, controlling the temperature of the oven to be 100-120 ℃, and taking out and cooling the contact after the water on the contact is completely dried;

and step four, checking out the silver-palladium contact with flash and unqualified silver-palladium contact, weighing the qualified silver-palladium contact according to 1kg per bag, packaging, and then labeling.

The cleaning machine in the third step comprises a protective box, a safety cover which is rotatably connected to the upper part of the protective box, a cleaning bin which is arranged on the protective box, a cleaning mechanism which is arranged on the cleaning bin, a driving bin which is arranged on the lower part of the cleaning barrel, a driving motor which is detachably connected to the driving bin, a discharging barrel which is arranged below the cleaning bin, a cleaning bin which is arranged below the cleaning bin, a rinsing bin which is arranged below the cleaning bin, a feeding mechanism which is arranged below the cleaning bin and a discharging mechanism which is arranged below the cleaning mechanism; the safety cover is opened, the processed silver target contact is poured into the cleaning bin from the upper part, the safety cover is covered, and the cleaning mechanism starts to work. The palladium and the silver are fused into the alloy, so that the hardness and the strength of the contact can be improved, the generation speed of silver sulfide can be reduced, the corrosion of the contact by sulfur is delayed, and the service life of the contact is prolonged.

The cleaning mechanism comprises a driving shaft which is rotatably connected with the driving motor, a driving rod which is sleeved on the driving shaft, a cleaning rotor which is fixedly connected to the upper part of the driving rod, a protective cover which is arranged above the cleaning rotor, an annular discharging hole which is arranged at the lower part of the cleaning bin, a sealing plate which is slidably connected with the annular discharging hole, and an arc-shaped plate which is fixedly connected with the sealing plate; the protective cover is provided with small holes which are uniformly distributed; the driving rotor is arranged in the middle of the cleaning bin; the driving motor works to drive the driving shaft to rotate and further drive the driving rod to rotate, the feeding mechanism starts to add a cleaning agent into the cleaning bin, the driving rod drives the cleaning rotor to rotate, the cleaning rotor stirs the cleaning agent in the cleaning bin, the cleaning agent is fully contacted with the silver target contact, and oil stains on the surface of the silver target contact fall off from the surface of the silver target contact under the action of the cleaning agent and float on the upper part of the cleaning agent; the protective cover is arranged, so that the silver target contact can be prevented from falling on the cleaning rotor during feeding; the cleaning rotor is arranged in the middle of the cleaning bin, so that water in the cleaning bin can be driven to be fully stirred, and the cleaning rotor can be prevented from colliding with the silver target contact in the rotating process, so that the silver target contact is deformed.

The feeding mechanism comprises a working bin arranged at the lower part of the cleaning bin, a rectifying bin arranged at the upper part of the working bin, a rectifying rotor rotatably connected with the rectifying bin, a driving rotor sleeved on the driving shaft, a rectifying platform fixedly connected with the driving rotor, an air inlet groove arranged on the rectifying rotor, a first air outlet groove arranged on the rectifying rotor, a second air outlet groove arranged on the rectifying rotor, a first air inlet pipe communicated with the rectifying bin and the washing bin, a second air inlet pipe communicated with the rectifying bin and the rinsing bin, a first liquid filling pipe communicated with the lower part of the washing bin and the lower part of the cleaning bin, a discharging bin arranged at the side edge of the protecting box 1, an air inlet channel communicated with the discharging bin and the working bin, a plurality of lifting holes arranged at the lower part of the annular discharging hole, a locking hole arranged at the lower part of the lifting hole, a supporting rod fixedly connected with the sealing plate and slidably connected with the lifting hole, The device comprises a locking piston fixedly connected to the lower part of a supporting rod, a first locking bin arranged on the upper part of the locking piston, a second locking bin arranged on the lower part of the locking piston, a locking spring arranged on the second locking bin, a first sealing pipe communicated with a first liquid filling pipe and the second locking bin, a second sealing pipe communicated with the second liquid filling pipe and the locking bin, a first sealing pin slidably connected with the first sealing pipe, a second sealing pin slidably connected with the second sealing pipe, a limiting component arranged on the lower part of the cleaning bin, collecting bins arranged on two sides of the cleaning bin, an overflow bin communicated with the upper part of the cleaning bin, a collecting pipe communicated with the overflow bin and the collecting bin, and a reversing component arranged above the working bin; springs are arranged on the rear sides of the first closing pin and the second closing pin; the upper surface of the rectifying table is rough; the driving motor rotates to drive the driving rotor to rotate, air in the working bin is driven to flow, the air enters the working bin from the outside through the air inlet channel under the driving of the driving rotor, further enters the first air inlet pipe through the air inlet groove, finally enters the washing bin and is gathered at the upper part of the washing bin, the air pressure in the washing bin is increased, under the action of the pressure, the cleaning agent enters the first liquid filling pipe and pushes the first closed pin open, the cleaning agent enters the cleaning bin and gradually fills the cleaning bin, then the cleaning rotor starts to rotate, the oil stain component on the surface of the silver target contact falls off and floats on the water surface, further, the cleaning agent in the cleaning bin rotates under the driving of the cleaning rotor, the cleaning agent continues to enter the cleaning bin from the washing bin, the cleaning agent in the cleaning bin begins to overflow to the overflow bin and drives the floating oil stain to flow out, and enters the collecting bin through the collecting pipe, the cleaning of the silver target contact and the collection of stains are realized; the first sealing pin and the second sealing pin are arranged on two sides, the first liquid filling pipe is automatically opened and the second liquid filling pipe is closed under the condition that the first liquid filling pipe has pressure and the second liquid filling pipe has no pressure, so that unidirectional liquid filling is realized, and the cleaning agent cannot flow back to the rinsing bin through the second liquid filling pipe; in addition, the first sealing pin slides to cause the air pressure of the second locking bin to be increased, and a certain upward supporting force can be provided for the supporting rod, so that the combination of the sealing plate and the annular blanking hole is more reliable, and the cleaning agent is prevented from leaking; the overflow bin and the cleaning bin are arranged, the cleaning agent can be continuously supplemented, the water level of the cleaning agent is always located at the uppermost position of the cleaning bin, oil stains floating on the water surface overflow due to fluctuation of the water surface generated by stirring, and are collected in the collecting bin, so that the cleaning agent is prevented from being polluted, and the cleaning agent is prepared for recycling of the cleaning agent.

The reversing assembly comprises a spring bin arranged at the upper part of the arranging bin, a stabilizing flange fixedly connected to the rectifying rotor, a stabilizing section arranged on the stabilizing flange, an unstable section arranged on the stabilizing flange, extrusion bins arranged at two sides of the spring bin, extrusion pins slidably connected to the extrusion bins, extrusion springs arranged at the rear sides of the extrusion bins, a pressing spring arranged on the spring bin, a plurality of driving sheets hinged to the lower part of the rectifying rotor and an exhaust pipe communicated with the lower bin and the rectifying bin; after the first cleaning is finished, the driving motor stops for the first time, the integrated rotor descends under the action of the pressing spring, the lower part of the driving sheet is contacted with the upper surface of the rectifying table, under the action of friction force, the driving sheet and the rectifying platform can not slide relatively, under the action of pressure of the rectifying rotor, the driving sheet generates torsion force on the rectifying rotor to drive the rectifying rotor to deflect angularly, the contact between the extrusion pin and the stabilizing part is gradually transited to the contact of an unstable section in the extrusion pin, under the action of the extrusion spring, the stabilizing rotor drives the rectifying rotor to generate self deflection, the extrusion pin is contacted with the stabilizing part again, meanwhile, the air inlet groove is staggered with the first air inlet pipe and is communicated with the second air inlet pipe, the first air inlet pipe is communicated with the first exhaust groove, the first exhaust groove is communicated with the exhaust pipe, under the action of water pressure, cleaning agent flows back into the washing bin from the washing bin along the first liquid filling pipe; air in the washing bin is discharged from the discharge opening through the first air inlet pipe and the exhaust pipe, so that the recovery of the cleaning agent is completed; further, the driving motor is restarted to drive the rotor to rotate, the rectifying rotor rises under the pushing of the airflow, the gas enters the second air inlet pipe through the air inlet groove and then enters the rinsing bin, the air pressure in the rinsing bin is increased, the clear water in the rinsing bin starts to be injected into the rinsing bin, and rinsing work is carried out under the stirring action of the cleaning rotor; the reversing assembly can automatically change the position of the air inlet groove after the driving motor stops rotating, change the flow direction of air flow, further change the pressure of the washing bin and the rinsing bin, and realize the mode switching of washing and rinsing; meanwhile, the air pressure in the washing bin and the air pressure in the rinsing bin can be automatically recovered under the action of the plurality of exhaust grooves, so that the cleaning agent or the clear water in the cleaning bin can be recovered, the water resource is saved, the effective components of the cleaning agent are fully utilized, and the economic benefit is improved.

The limiting assembly comprises a limiting pipe communicated with the bottom of the cleaning bin and the first liquid filling pipe, a limiting block fixedly connected with the limiting pipe, a sliding hole arranged in the limiting block, a pressure head slidably connected with the limiting pipe, a limiting rod fixedly connected with the pressure head and slidably connected with the sliding hole, a plug fixedly connected with the limiting rod, a balance pipe arranged on the limiting rod, a first small hole arranged in the balance pipe, a second small hole arranged in the balance pipe, a buffer bin arranged on the limiting block, an unlocking pipe communicated with the first locking bin and the buffer bin, and a limiting spring sleeved on the limiting rod; when the water level in the cleaning bin is gradually increased, the water pressure at the bottom of the cleaning bin is gradually increased to generate a pressure effect on a pressure head, the pressure head drives a limiting rod to slide along a sliding hole, a cleaning agent of a first liquid filling pipe fills the buffer bin and the first locking bin through a balance pipe, the first small hole is staggered with the buffer bin, an unlocking pipe and the first locking bin form a completely closed space, and the supporting rod cannot move up and down to lock the upper position and the lower position of the sealing plate; further, when the water in the cleaning bin gradually reaches the uppermost position of the cleaning bin, the pipeline of the first liquid filling pipe is gradually blocked by the plug, so that the adding amount of the detergent is reduced, and the waste caused by the continuous adding of the detergent is avoided; through the feedback effect of water pressure, realize the position of closing plate and injectd, improved the leakproofness in washing storehouse.

The discharging assembly comprises a releasing bin arranged on the protective box 1, an annular bin communicated with the second locking bin, a fixed barrel fixedly connected with the releasing bin, a sliding barrel slidably connected with the fixed barrel, a sideline flange fixedly connected with the sliding barrel, an auxiliary bin arranged on the releasing bin, a releasing pipe communicated with the rectifying bin and the releasing bin, an air outlet pipe communicated with the releasing bin, a one-way valve arranged on the air outlet pipe, a discharging bin arranged at the lower part of the cleaning bin and a discharging platform fixedly connected with the discharging bin; when rinsing is completed, the driving motor stops rotating for the second time, the rectifying rotor rotates again, the air inlet groove is communicated with the first air inlet pipe, the second air exhaust groove is communicated with the first air inlet pipe, the release pipe is communicated with the second air exhaust groove, clear water in the rinsing bin flows back into the rinsing bin through the second liquid filling pipe, air in the rinsing bin reaches the release bin through the release pipe to cause air pressure in the release bin to increase, one part of the air is exhausted through the air outlet pipe, the other part of the air causes the sliding cylinder to descend along the fixed cylinder, further, the air pressure in the auxiliary bin is reduced, when all water in the rinsing bin is exhausted, the limiting assembly resets, the locking effect of the supporting rod disappears, the air pressure in the second locking bin is reduced, the Aradong supporting rod descends, the sealing plate is opened downwards, a cleaned silver palladium contact falls into the discharging bin, and falls onto the discharging table under the effect of the discharging table; after the next time of starting the driving motor, the driving rotor drives the air to flow, and the air flow flowing through the air inlet channel can dry the silver-palladium contact falling on the discharging platform; through the cooperation in switching-over subassembly and release storehouse, can all retrieve water after playing the completion with twice washing of silver palladium contact, through the motion of sliding tube, open the closing plate downwards automatically, realize automatic discharge, unload and accomplish the back, have automatic re-setting, degree of automation is higher, and work efficiency is higher to can also realize automatic drying.

In summary, the invention has the following advantages: the palladium and the silver can be dissolved infinitely and mutually to form a continuous solid solution; the palladium and the silver are fused into alloy, so that the hardness and the strength of the contact can be improved, the generation speed of silver sulfide can be reduced, the corrosion of the contact by sulfur is delayed, and the service life of the contact is prolonged; the cleaning agent disclosed by the invention can realize effective recycling of the cleaning agent, reduces the using amount of water, can realize automatic blanking and drying, and has the advantages that the cleaned silver-palladium contact is free from mechanical damage and good in quality.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional view taken along a-a of fig. 2.

Fig. 4 is a cross-sectional view taken along B-B of fig. 2.

Fig. 5 is a top view of the present invention.

Fig. 6 is a cross-sectional view taken along line B-B of fig. 5.

Fig. 7 is an enlarged view of a portion a in fig. 6.

Fig. 8 is an enlarged view at B in fig. 7.

Fig. 9 is an enlarged view at C in fig. 6.

Fig. 10 is a first structural schematic diagram of a rectification rotor according to the present invention.

Fig. 11 is a second schematic structural view of the rectification rotor of the present invention.

Detailed Description

Example 1

A production process of a silver target contact comprises the following steps:

step one, casting: the silver-palladium alloy comprises the following components in parts by weight: sponge palladium 98.5: 1.5, putting the prepared raw materials of the silver plate and the sponge palladium into an intermediate frequency furnace in batches, turning on a power supply to heat, and stirring by using a stone grinding rod after the silver plate and the sponge palladium are completely dissolved; stirring twice in each furnace; fixing a casting mold, heating by using a fire gun, slowly pouring silver water into the mold after 10min, casting into a silver rod, opening the mold, taking out the silver rod, and cooling to room temperature;

step two, wire drawing:

secondly, tempering, namely putting the rolled silver strips into a resistance furnace, turning on a power supply to heat, and controlling the temperature to be 700 ℃;

fourthly, drawing, namely taking out the silver wires in the resistance furnace for cooling, rolling the wire heads on a tip machine, and then penetrating through a die hole for drawing, wherein the die hole has hardness when the diameter is 300mm and needs tempering; taking out the tempered silver wire, cooling, continuing to roll the head, and sending the silver wire into a die for wire drawing until the silver wire is drawn out of the die;

step three, contact point making

thirdly, drying, namely putting the cleaned contact into a plate and putting the plate into an oven, controlling the temperature of the oven to be 100 ℃, and taking out the contact after the water on the contact is completely dried and cooling the contact;

The cleaning machine in the third step comprises a protective box 1, a safety cover 11, a cleaning bin 12, a cleaning mechanism 2, a driving bin 13, a driving motor 14, a discharging cylinder 15, a washing bin 16, a rinsing bin 17, a feeding mechanism 3, a discharging mechanism 4, a washing bin 16, a rinsing bin 17, a feeding mechanism 3 and a discharging mechanism 4; the safety cover 11 is rotatably connected to the upper part of the protective box 1; the cleaning bin 12 is arranged in the protective box 1; the cleaning mechanism 2 is arranged in the cleaning bin 12; the driving bin 13 is arranged at the lower part of the cleaning bin; the driving cabin 13 is detachably connected with the driving cabin; the discharge bin 313 is arranged below the cleaning bin 12; the washing bin 16 is arranged below the cleaning bin 12; the rinsing bin 17 is arranged below the cleaning bin 12; the feeding mechanism 3 is arranged at the lower part of the cleaning bin 12; the discharging mechanism 4 is arranged below the cleaning mechanism 2; the safety cover 11 is opened, the processed silver target contact is poured into the cleaning bin 12 from the upper part, the safety cover 11 is covered, and the cleaning mechanism 2 starts to work.

The cleaning mechanism 2 comprises a driving shaft 21, a driving rod 22, a cleaning rotor 23, a protective cover 24, an annular blanking hole 25, a sealing plate 26 and an arc-shaped plate 27; the drive shaft 21 is rotatably connected to the drive motor 14; the driving rod 22 is sleeved on the driving shaft 21; the cleaning rotor 23 is fixedly connected to the upper part of the driving rod 22; the protective cover 24 is arranged above the cleaning rotor 23; the annular blanking hole 25 is arranged at the lower part of the cleaning bin 12; the sealing plate 26 is slidably connected to the annular blanking hole 25; the arc plate 27 is fixedly connected to the sealing plate 26; the protective cover 24 is provided with small holes which are uniformly distributed; the driving rotor 34 is arranged in the middle of the cleaning bin 12; the driving motor 14 works to drive the driving shaft 21 to rotate and drive the driving rod 22 to rotate, the feeding mechanism 3 starts to add the cleaning agent into the cleaning bin 12, the driving rod 22 drives the cleaning rotor 23 to rotate, and the cleaning rotor 23 stirs the cleaning agent in the cleaning bin 12.

The feeding mechanism 3 comprises a working bin 31, a rectifying bin 32, a rectifying rotor 33, a rectifying table 35, a driving rotor 34, an air inlet groove 36, a first exhaust groove 37, a second exhaust groove 38, a first air inlet pipe 39, a second air inlet pipe 310, a first liquid charging pipe 311, a discharging bin 313, an air inlet channel 314, a lifting hole 315, a locking hole 316, a supporting rod 317, a locking piston 318, a first locking bin 319, a second locking bin 320, a locking spring 321, a first closing pipe 322, a second closing pipe 323, a first closing pin 324, a second closing pin 325, a limiting component 326, a collecting bin 327, an overflow bin 328, a collecting pipe and a reversing component 5; the working bin 31 is arranged at the lower part of the cleaning bin; the rectifying bin 32 is arranged at the upper part of the working bin 31; the rectifying rotor 33 is rotatably connected to the rectifying bin 32; the rectifying table 35 is fixedly connected to the rotor of the driving rotor 34; the driving rotor 34 is sleeved on the driving shaft 21; the air inlet groove 36 is arranged on the rectifying rotor 33; the first exhaust groove 37 is provided in the rectifying rotor 33; the second exhaust duct 38 is provided in the rectifying rotor 33; the first air inlet pipe 39 is communicated with the rectifying bin 32 and the washing bin 16; the second air inlet pipe 310 is communicated with the rectification bin 32 and the rinsing bin 17; the first liquid charging pipe 311 connects the lower part of the washing bin 16 with the lower part of the cleaning bin 12; the second liquid charging pipe 312 is communicated with the lower part of the rinsing bin 17 and the lower part of the cleaning bin 12; the discharge bin 313 is arranged on the side edge of the protective box 1; the air inlet channel 314 is communicated with the discharging bin 313 and the working bin 31; the two lifting holes 315 are arranged at the lower part of the annular blanking hole 25; the locking hole 316 is arranged at the lower part of the lifting hole 315; the supporting rod 317 is fixedly connected to the sealing plate 26 and slidably connected to the lifting hole 315; the locking piston 318 is fixedly connected to the lower part of the supporting rod 317; the first locking chamber 319 is arranged at the upper part of the locking piston 318; the second lock chamber 320 is arranged below the lock piston 318; the locking spring 321 is arranged on the second locking bin 320; the first closed pipe 322 connects the first liquid charging pipe 311 and the second locking bin 320; the second closing pipe 323 is communicated with the second liquid charging pipe 312 and the locking bin; the first closure pin 324 is slidably connected to the first closure tube 322; the second closing pin 325 is slidably connected to the second closing tube 323; the limiting assembly 326 is arranged at the lower part of the cleaning bin 12; the collecting bin 327 is arranged at two sides of the cleaning bin 12; the overflow bin 328 is communicated with the upper part of the cleaning bin 12; the collecting pipe is communicated with the overflow bin 328 and the collecting bin 327; the reversing assembly 5 is arranged above the working bin 31; a spring is arranged at the rear side of the first closing pin 324 and the second closing pin 325; the upper surface of the rectifying platform 35 is rough;

the reversing assembly 5 comprises a spring bin 51, a stabilizing flange 52, a stabilizing section 53, an unstable section 54, an extrusion bin 55, an extrusion pin 56, an extrusion spring 57, a pressing spring 58, a driving sheet 59 and an exhaust pipe 510; the spring bin 51 is arranged at the upper part of the tidying bin; the stabilizing flange 52 is fixedly connected to the commutator rotor 33; the stabilizing section 53 is arranged on the stabilizing flange 52; the unstable section 54 is arranged on the stable flange 52; the extrusion bin 55 is arranged at two sides of the spring bin 51; the extrusion pin 56 is slidably connected to the extrusion bin 55; the extrusion spring 57 is arranged at the rear side of the extrusion bin 55; the downward pressing spring 58 is arranged on the spring bin 51; the driving plate 59 is hinged to the lower part of the rectifying rotor 33; the exhaust pipe 510 communicates the blanking bin 410 with the rectifying bin 32.

The limiting assembly 326 comprises a limiting pipe 61, a limiting block 62, a sliding hole 63, a pressure head 64, a limiting rod 65, a plug 66, a balance pipe 67, a first small hole 68, a second small hole 69, a buffer bin 610, an unlocking pipe 611 and a limiting spring 612; the limiting pipe 61 is communicated with the bottom of the cleaning bin 12 and the first liquid charging pipe 311; the limiting block 62 is fixedly connected to the limiting pipe 61; the sliding hole 63 is formed in the limiting block 62; the pressure head 64 is slidably connected to the limiting pipe 61; the limiting rod 65 is fixedly connected to the pressure head 64 and is slidably connected to the sliding hole 63; the plug 66 is fixedly connected to the limiting rod 65; the balance pipe 67 is arranged on the limiting rod 65; the first small hole 68 is arranged on the balance pipe 67; the second small hole 69 is formed in the balance pipe 67; the buffer bin 610 is arranged on the limiting block 62; the unlocking pipe 611 is communicated with the first locking bin 319 and the buffer bin 610; the limiting spring 612 is sleeved on the limiting rod 65.

The discharging mechanism 4 comprises a releasing bin 41, an annular bin 42, a fixed barrel 43, a sliding barrel 44, a sideline flange 45, an auxiliary bin 46, a releasing pipe 47, an air outlet barrel, a one-way valve 49, a discharging bin 410 and a discharging table 411; the release bin 41 is arranged on the protective box 1; the annular bin 42 communicates with the second lock bin 320; the fixed cylinder 43 is fixedly connected with the release bin 41; the sliding cylinder 44 is slidably connected to the fixed cylinder 43; the sideline flange 45 is fixedly connected to the sliding cylinder 44; the auxiliary bin 46 is arranged on the release bin 41; the release pipe 47 is communicated with the rectification bin 32 and the release bin 41; the air outlet pipe 48 is communicated with the release bin 41; the one-way valve 49 is arranged on the air outlet pipe 48; the discharging bin 410 is arranged at the lower part of the cleaning bin 12; the blanking table 411 is fixedly connected to the blanking bin 410.

Example 2

Step one, casting: the silver-palladium alloy comprises the following components in parts by weight: sponge palladium 98.5: 1.5, putting the prepared raw materials of the silver plate and the sponge palladium into an intermediate frequency furnace in batches, turning on a power supply to heat, and stirring by using a stone grinding rod after the silver plate and the sponge palladium are completely dissolved; stirring twice in each furnace; fixing a casting mold, heating for 15min by using a fire gun, slowly pouring silver water into the mold, casting into a silver rod, opening the mold, taking out the silver rod, and cooling to room temperature;

step two, wire drawing:

secondly, tempering, namely putting the rolled silver strips into a resistance furnace, turning on a power supply to heat, and controlling the temperature at 800 ℃;

drawing, namely taking out the silver wires in the resistance furnace, cooling, rolling the wire heads on a tip machine, and then passing through a wire drawing die hole, wherein the die hole has hardness when the diameter is 390mm and needs tempering; taking out the tempered silver wire, cooling, continuing to roll the head, and sending the silver wire into a die for wire drawing until the silver wire is drawn out of the die;

step three, contact point making

thirdly, drying, namely putting the cleaned contact into a plate and putting the plate into an oven, controlling the temperature of the oven to be 110 ℃, and taking out the contact after the water on the contact is completely dried and cooling the contact;

The structure of the cleaning machine in step three is the same as that in embodiment 1, and is not described again.

Example 3

1. A production process of a silver target contact comprises the following steps:

step one, casting: the silver-palladium alloy comprises the following components in parts by weight: sponge palladium 98.5: 1.5, putting the prepared raw materials of the silver plate and the sponge palladium into an intermediate frequency furnace in batches, turning on a power supply to heat, and stirring by using a stone grinding rod after the silver plate and the sponge palladium are completely dissolved; stirring twice in each furnace; fixing a casting mold, heating by using a fire gun, slowly pouring silver water into the mold after 20min, casting into a silver rod, opening the mold, taking out the silver rod, and cooling to room temperature;

step two, wire drawing:

secondly, tempering, namely putting the rolled silver strips into a resistance furnace, turning on a power supply to heat, and controlling the temperature to be 900 ℃;

fourthly, drawing, namely taking out the silver wires in the resistance furnace for cooling, rolling the wire heads on a tip machine, and then penetrating through a die hole for drawing, wherein the die hole has hardness when the diameter is 480mm and needs tempering; taking out the tempered silver wire, cooling, continuing to roll the head, and sending the silver wire into a die for wire drawing until the silver wire is drawn out of the die;

step three, contact point making

thirdly, drying, namely putting the cleaned contact into a plate and putting the plate into an oven, controlling the temperature of the oven to be 120 ℃, and taking out the contact after the water on the contact is completely dried and cooling the contact;

The specific implementation process comprises the following steps:

the safety cover 11 is opened, the processed silver target contact is poured into the cleaning bin 12 from the upper part, the safety cover 11 is covered, the cleaning mechanism 2 starts to work, and after cleaning is completed, the silver target contact falls down from the discharging platform.

Claims

1. A production process of a silver target contact is characterized by comprising the following steps: the method comprises the following steps:

step two, wire drawing:

step three, contact point making

The cleaning machine in the third step comprises a protective box (1), a safety cover (11) which is rotatably connected to the upper part of the protective box (1), a cleaning bin (12) which is arranged on the protective box (1), a cleaning mechanism (2) which is arranged on the cleaning bin (12), a driving bin (13) which is arranged on the lower part of the cleaning bin, a driving motor (14) which is detachably connected to the driving bin (13), a discharging barrel (15) which is arranged below the cleaning bin (12), a washing bin (16) which is arranged below the cleaning bin (12), a rinsing bin (17) which is arranged below the cleaning bin (12), a feeding mechanism (3) which is arranged on the lower part of the cleaning bin (12) and a discharging mechanism (4) which is arranged below the cleaning mechanism (2); and (3) opening the safety cover (11), pouring the processed silver target contact into the cleaning bin (12) from the upper part, covering the safety cover (11), and starting the cleaning mechanism (2).

2. The process for producing a silver target contact according to claim 1, wherein: the cleaning mechanism (2) comprises a driving shaft (21) which is rotatably connected to the driving motor (14), a driving rod (22) which is sleeved on the driving shaft (21), a cleaning rotor (23) which is fixedly connected to the upper part of the driving rod (22), a protective cover (24) which is arranged above the cleaning rotor (23), an annular discharging hole (25) which is arranged at the lower part of the cleaning bin (12), a sealing plate (26) which is slidably connected to the annular discharging hole (25), and an arc-shaped plate (27) which is fixedly connected to the sealing plate (26); the protective cover (24) is provided with small holes which are uniformly distributed; the driving rotor (34) is arranged in the middle of the cleaning bin (12); the driving motor (14) works to drive the driving shaft (21) to rotate to drive the driving rod (22) to rotate, the feeding mechanism (3) starts to add the cleaning agent into the cleaning bin (12), the driving rod (22) drives the cleaning rotor (23) to rotate, and the cleaning rotor (23) stirs the cleaning agent in the cleaning bin (12).

3. The process for producing a silver target contact according to claim 2, wherein: the feeding mechanism (3) comprises a working bin (31) arranged at the lower part of the cleaning bin, a rectifying bin (32) arranged at the upper part of the working bin (31), a rectifying rotor (33) rotatably connected with the rectifying bin (32), a driving rotor (34) sleeved on the driving shaft (21), a rectifying table (35) fixedly connected with the driving rotor (34), an air inlet groove (36) arranged on the rectifying rotor (33), a first exhaust groove (37) arranged on the rectifying rotor (33), a second exhaust groove (38) arranged on the rectifying rotor (33), a first air inlet pipe (39) communicated with the rectifying bin (32) and the washing bin (16), a second air inlet pipe (310) communicated with the rectifying bin (32) and the rinsing bin (17), and a first liquid filling pipe (311) communicated with the lower part of the washing bin (16) and the lower part of the cleaning bin (12), The device comprises a second liquid filling pipe (312) communicated with the lower part of the rinsing bin (17) and the lower part of the cleaning bin (12), a discharging bin (313) arranged on the side edge of the protective box (1), an air inlet channel (314) communicated with the discharging bin (313) and the working bin (31), a plurality of lifting holes (315) arranged on the lower part of the annular discharging hole (25), locking holes (316) arranged on the lower part of the lifting holes (315), a supporting rod (317) fixedly connected to the sealing plate (26) and slidably connected to the lifting holes (315), a locking piston (318) fixedly connected to the lower part of the supporting rod (317), a first locking bin (319) arranged on the upper part of the locking piston (318), a second locking bin (320) arranged on the lower part of the locking piston (318), a locking spring (321) arranged on the second locking bin (320), and a first closed pipe (322) communicated with the first liquid filling pipe (311) and the second locking bin (320), The second sealing pipe (323) is communicated with the second liquid filling pipe (312) and the locking bin, the first sealing pin (324) is connected with the first sealing pipe (322) in a sliding mode, the second sealing pin (325) is connected with the second sealing pipe (323) in a sliding mode, the limiting component (326) is arranged at the lower portion of the cleaning bin (12), the collecting bin (327) is arranged at two sides of the cleaning bin (12), the overflow bin (328) is communicated with the upper portion of the cleaning bin (12), the collecting pipe is communicated with the overflow bin (328) and the collecting bin (327), and the reversing component (5) is arranged above the working bin (31); springs are arranged on the rear sides of the first closing pin (324) and the second closing pin (325); the upper surface of the rectifying table (35) is rough; the driving motor (14) rotates to drive the driving rotor (34) to rotate, air in the working bin (31) is driven to flow, the air is driven by the driving rotor (34) to enter the working bin (31) from the outside through the air inlet channel (314), enters the first air inlet pipe (39) through the air inlet groove (36), finally enters the washing bin (16) and is gathered at the upper part of the washing bin (16), the air pressure in the washing bin (16) is increased, a cleaning agent enters the first liquid filling pipe (311) under the action of pressure, the first sealing pin (324) is pushed open, the cleaning agent enters the cleaning bin (12) and is gradually filled in the cleaning bin (12), then the cleaning rotor (23) starts to rotate, an oil stain component on the surface of the silver target contact falls off and floats on the water surface, the cleaning agent in the cleaning bin (12) rotates under the drive of the cleaning rotor (23), the cleaning agent continuously enters the cleaning bin (12) from the washing bin (16), and the cleaning agent in the cleaning bin (12) begins to overflow outwards to the overflow bin (328) and drives the floating oil stain to flow out.

4. A process for producing a silver target contact according to claim 3, wherein: the reversing assembly (5) comprises a spring bin (51) arranged at the upper part of the arranging bin, a stabilizing flange (52) fixedly connected to the rectifying rotor (33), a stabilizing section (53) arranged on the stabilizing flange (52), an unstable section (54) arranged on the stabilizing flange (52), extrusion bins (55) arranged at two sides of the spring bin (51), extrusion pins (56) slidably connected to the extrusion bins (55), extrusion springs (57) arranged at the rear side of the extrusion bins (55), a pressing spring (58) arranged on the spring bin (51), a plurality of driving pieces (59) hinged to the lower part of the rectifying rotor (33), and an exhaust pipe (510) communicated with the lower bin (410) and the rectifying bin (32); the driving motor (14) is stopped for the first time, the rotor descends under the action of a pressing spring (58), the lower part of a driving sheet (59) is in contact with the upper surface of a rectifying table (35), the driving sheet (59) and the rectifying table (35) cannot slide relatively under the action of friction force, under the action of pressure of the rectifying rotor (33), the driving sheet (59) generates torsional force on the rectifying rotor (33) to drive the rectifying rotor (33) to deflect angularly, the contact between a pressing pin (56) and a stabilizing part is gradually transited to the contact of an unstable section (54) in the pressing pin (56), under the action of a pressing spring (57), the stabilizing rotor drives the rectifying rotor (33) to deflect automatically, the pressing pin (56) is in contact with the stabilizing part again, meanwhile, an air inlet groove (36) is staggered with the first air inlet pipe (39) and is communicated with a second air inlet pipe (310), the first air inlet pipe (39) is communicated with the first exhaust groove (37), the first exhaust groove (37) is communicated with the exhaust pipe (510), and under the action of water pressure, cleaning agent flows back into the washing bin (16) from the washing bin (12) along the first liquid filling pipe (311); the driving motor (14) is restarted to drive the rotor (34) to rotate, the rectifying rotor (33) rises under the pushing of the airflow, the gas enters the second air inlet pipe (310) through the air inlet groove (36) and then enters the rinsing bin (17), the air pressure in the rinsing bin (17) is increased, the clean water in the rinsing bin (17) starts to be injected into the rinsing bin (12), and rinsing work is carried out under the stirring action of the cleaning rotor (23).

5. The process for producing a silver target contact according to claim 4, wherein: the limiting component (326) comprises a limiting pipe (61) communicated with the bottom of the cleaning bin (12) and the first liquid charging pipe (311), a limiting block (62) fixedly connected with the limiting pipe (61), a sliding hole (63) arranged on the limiting block (62), a pressure head (64) slidably connected with the limiting pipe (61), a limiting rod (65) fixedly connected with the pressure head (64) and slidably connected with the sliding hole (63), and a plug (66) fixedly connected with the limiting rod (65), the device comprises a balance pipe (67) arranged on the limiting rod (65), a first small hole (68) arranged on the balance pipe (67), a second small hole (69) arranged on the balance pipe (67), a buffer bin (610) arranged on the limiting block (62), an unlocking pipe (611) communicating the first locking bin (319) with the buffer bin (610), and a limiting spring (612) sleeved on the limiting rod (65); when the water level in the cleaning bin (12) rises gradually, the water pressure at the bottom of the cleaning bin (12) is increased gradually, a pressure effect is generated on a pressure head (64), the pressure head (64) drives a limiting rod (65) to slide along a sliding hole (63), a cleaning agent in a first liquid filling pipe (311) fills a buffer bin (610) and a first locking bin (319) through a balance pipe (67), the positions of a first small hole (68) and the buffer bin (610) are staggered, the buffer bin (610), an unlocking pipe (611) and the first locking bin (319) form a completely closed space, and a support rod (317) cannot move up and down to lock the upper position and the lower position of a sealing plate (26); further, when the water in the cleaning bin (12) gradually reaches the uppermost position of the cleaning bin (12), the plug (66) gradually plugs the pipeline of the first liquid filling pipe (311).

6. The process for producing a silver target contact according to claim 5, wherein: the discharging mechanism (4) comprises a release bin (41) arranged on the protective box (1), an annular bin (42) communicated with the second locking bin (320), a fixed barrel (43) fixedly connected to the release bin (41), a sliding barrel (44) slidably connected to the fixed barrel (43), a sideline flange (45) fixedly connected to the sliding barrel (44), an auxiliary bin (46) arranged on the release bin (41), a release pipe (47) communicated with the rectification bin (32) and the release bin (41), an air outlet pipe (48) communicated with the release bin (41), a one-way valve (49) arranged on the air outlet pipe (48), a discharging bin (410) arranged on the lower portion of the cleaning bin (12), and a discharging platform (411) fixedly connected to the discharging bin (410); the driving motor (14) stops rotating for the second time, the rectifying rotor (33) rotates again, the air inlet groove (36) is communicated with the first air inlet pipe (39), the second air exhaust groove (38) is communicated with the first air inlet pipe (39), the release pipe (47) is communicated with the second air exhaust groove (38), clean water in the cleaning bin (12) flows back into the rinsing bin (17) through the second liquid filling pipe (312), gas in the rinsing bin (17) reaches the release bin (41) through the release pipe (47) to cause the increase of air pressure in the release bin (41), one part of the gas is discharged through the air outlet pipe (48), the other part of the gas causes the sliding barrel (44) to descend along the fixed barrel (43), further, the air pressure in the auxiliary bin (46) is reduced, when all water in the cleaning bin (12) is discharged, the limiting component (326) is reset, the locking effect of the supporting rod (317) disappears, the air pressure in the second locking bin (320) is reduced, the Diadong support rod (317) descends, the sealing plate (26) is opened downwards, the cleaned silver palladium contact falls into the blanking bin (410), and the silver palladium contact rolls onto the discharging table under the action of the blanking table (411).