CN105945412A

CN105945412A - High-precision hydraulic type welding device

Info

Publication number: CN105945412A
Application number: CN201610404406.5A
Authority: CN
Inventors: 董超超
Original assignee: Individual
Current assignee: Taishan Hengsheng Hardware Furniture Co ltd
Priority date: 2016-06-08
Filing date: 2016-06-08
Publication date: 2016-09-21
Anticipated expiration: 2036-06-08
Also published as: CN105945412B

Abstract

The invention discloses a high-precision hydraulic type welding device. The device comprises a welding part, a contact type electric welding head, a hydraulic cylinder, an oil supply pump, a pressure sensor and a controller; the contact type electric welding head is driven by the hydraulic cylinder, the oil supply pump is used for supplying oil to the hydraulic cylinder, the pressure sensor is used for measuring contact force between the contact type electric welding head and the welding part, and during welding, the controller adjusts the oil supply amount of the oil supply pump according to the feedback value of the contact force, and therefore contact force is controlled; and the welding device can precisely control the oil supply flow, and therefore the welding effect is controlled, and the beneficial effects of being good in heat dissipation condition, long in running period, convenient to overhaul and the like are achieved.

Description

A kind of high-precision hydraulic formula welder

Technical field

The present invention relates to welding field, be specifically related to a kind of high-precision hydraulic formula welder.

Background technology

Spot welding head is used in a resistance welding equipment, directly contacts with welded article body, think soldered thing directly provide electric current and The device of pressure, is widely used in the field such as automobile making, Making mold.The control of spot welding power, a weight during being a weld through The Con trolling index wanted.

Ferromagnetic crstal is under the excitation of externally-applied magnetic field, and its length and volume all can change, after externally-applied magnetic field excitation is removed, Its size returns to again original phenomenon, referred to as magnetostrictive effect.Ultra-magnetic telescopic pump is to utilize giant magnetostrictive material outside Add the mechanism that dilatation can occur in magnetic field, make pump chamber produce change, form one-way flow and the pump action of liquid, It is accurate that it has flow-control, and volume is little, advantages of simple structure and simple.

Summary of the invention

For the problems referred to above, the present invention provides a kind of high-precision hydraulic formula welder.

The purpose of the present invention realizes by the following technical solutions:

A kind of high-precision hydraulic formula welder, is characterized in that, including connect weldment, contact electric welding head, hydraulic cylinder, oil feed pump, Pressure transducer and controller, contact electric welding head is by Driven by Hydraulic Cylinder, and oil feed pump is for hydraulic cylinder fuel feeding；Pressure transducer For measuring the contact force between contact electric welding head and weldment；During welding, controller adjusts confession according to the value of feedback of contact force The fuel delivery of oil pump, thus control contact force；

Preferably, described pressure transducer is built-in with wireless transmitter, and the force value that pressure transducer detects passes through wireless transmit Device sends to controller.

Preferably, described controller uses the rate of change of welding current as feed-forward control signals.

Preferably, described pressure transducer is deposition tube resistance type pressure transducer.

Preferably, described oil feed pump is ultra-magnetic telescopic pump, and described ultra-magnetic telescopic pump entirety is vertically-mounted, including the pump housing, surpasses Magnetostrictive rod, output shaft, piston component, check valve assembly, pressing means, end cap, driving coil, indirect cooling system and Emergency cooling system, the pump housing includes inner pump and the outer pump housing, forms the cooling chamber of annular between inner pump and the outer pump housing；Drive line Circle is contained in the inner chamber of inner pump, and giant magnetostrictive rod is arranged on the axis driving coil；The lower end of output shaft and super magnetic The upper end causing extension stem is connected, and output shaft and the pump housing are made by the soft magnetic materials of high magnetic permeability, and the length of giant magnetostrictive rod Equal with the length driving coil；Giant magnetostrictive rod is pole shape, and it makes material and includes rare earth metal town, dysprosium and transition group Metallic iron；

The described outer pump housing upwardly extends formation buckling body, and the lower horizontal of output shaft is connected with supporting, supporting and part output Axle is contained in buckling body, and the wall body of buckling body is symmetrically arranged with centered by axis 2 buckling grooves, each buckling groove bag Include sliding tray, multiple fixing groove and multiple horizontally disposed link slot of vertically layout, described sliding tray, link slot and fixing groove It is sequentially communicated；Described pressing means is connected with supporting by spring, for giant magnetostrictive rod is applied precompression, described spring It is sleeved on output shaft；Centered by axis, it is symmetrically arranged with 2 on the edge of described pressing means coordinate with described buckling groove and make Holding section, its shapes and sizes match with the shapes and sizes of fixing groove, when holding section is fastened on varying level position During fixing groove, giant magnetostrictive rod obtains different grades of precompression；Applying to press under pressing means during precompression, holding section enters In sliding tray, horizontally rotate pressing means and make holding section enter link slot, unclamp pressing means when arriving the correspondence position of fixing groove, Holding section is fastened in fixing groove under spring force；

Described piston component includes fixed body and piston, output shaft through fixed body affixed with piston, piston base be provided with one by The barrier film that elastic membraneous material makes, it is fixed by screws on fixed body, and barrier film is completely separated with the external world by piston, pump chamber, It is simultaneously used for strengthening when giant magnetostrictive rod shrinks the restoring force of piston；

Described check valve assembly includes import check valve and Outlet check valves, and both are arranged on valve body in the opposite direction, valve block For beam type, being realized the folding of valve port by the bending of valve block and replying, the cantilever end of valve block closely connects with import or export Touch；Described valve block uses bullet steel disc and beryllium-bronze as making material, through the Ageing Treatment of insulation in three hours, and uses The mode of natural air cooling cools down；Described giant magnetostrictive rod produces dilatation in the magnetic field of change, drives piston to do directly Line moves back and forth, and piston movement causes pump chamber change, two check valves under the pressure differential of alternation drives, alternately open with Close, serve rectified action, finally realize the unidirectional continuous flowing of liquid medium；The import and export of check valve, the circumference of barrier film On all use O shape rubber seal be filled with seal；

Described indirect cooling system includes tubular cooler, small-sized cooling blower, cooling entrance and coolant outlet, and inner pump is by leading Heat preferably soft magnetic materials is made, and cooling entrance is arranged on the top of the outer pump housing, and coolant outlet is arranged on the bottom of the outer pump housing；Institute Stating tubular cooler to be integrated on the outer surface of the outer pump housing, cooling entrance is directly connected with tubular cooler, and coolant outlet is by little Type cooling blower is connected with described tubular cooler, is passed through cooling water in the spiral coil cooling tube in tubular cooler；Stretch at super mangneto During contracting pump operation, when air temperature value inner pump inner chamber being detected is higher than setting value T1, small-sized cooling blower opens automatically Dynamic, the heat of inner pump inner chamber is derived to cooling chamber by the wall body of inner pump, and the hot-air in cooling chamber is in small-sized cooling simultaneously It is circulated cooling under the drive of blower fan, thus reduces the temperature driving coil；The power of described small-sized cooling blower is 170w, The a length of 150mm of described giant magnetostrictive rod, driving size of current is 4A, and frequency is 10HZ；

Preferably, described emergency cooling system includes emergent cooling entrance, emergent cooling chamber and 2 emergent coolant outlets, 2 Described emergent coolant outlet is arranged in the base below the pump housing, and emergent cooling entrance is arranged on the top of inner pump；Described emergent It is filled with low melting point in coolant outlet and emergent cooling entrance, its fusion temperature T2 ＞ T1, this low melting point also mixes The soft magnetic materials identical with described pump housing material；The cross section of described emergent coolant outlet is inverted trapezoidal shape, emergent cooling entrance Cross section be arranged to the most tapered trapezoidal shape；Described emergent coolant outlet is connected with the emergency ventilation chamber being arranged on below Logical, the lower surface in emergency ventilation chamber is inclined-plane, and its one end is connected with the inlet duct of small-sized cooling blower, the other end and de-waxing Mouth connection；When the air themperature of inner pump inner chamber is more than T2, paraffin starts fusing, emergent coolant outlet and entrance melting because of paraffin Change is opened, and the hot-air of inner chamber is directly circulated cooling under the drive of small-sized cooling blower；Emergent coolant outlet melts After paraffin fall into emergency ventilation intracavity, and fall into wax discharging port along inclined-plane；The end of described wax discharging port is provided with closing element, close Closing member is bolted on the bottom of base, when needs de-waxing, unclamps bolt and takes off closing element by paraffin discharge；Described pump Body and base are fastened by upper and lower two parts and form, and the pump housing and base are disassembled for operator and refill paraffin, and Clean out and answer the paraffin of residual in cooling chamber and emergency ventilation chamber.

Preferably, the outer surface of described inner pump being additionally provided with the heat exchanging piece of multiple outwardly convex, described heat exchanging piece is overall in circle Mesa-shaped, the side of each heat exchanging piece is provided with multiple spiral salient, and the hand of spiral of adjacent two spiral salients is contrary.

This welder have the beneficial effect that (1) can be precisely controlled fuel supply flow rate, thus control welding effect, and there is heat radiation The advantages such as condition is good, and cycle of operation is long, and maintenance is convenient；(2) devise a kind of new precompression and apply mechanism, this applying Precompression mode reduce further the integrated weight of pumping system, beneficially lightweight by the design of buckling groove；Simultaneously by this Kind of graduate precompression applies mode, operator can find oneself to more convenient and quicker needed for position corresponding to precompression, The position of engaging can be changed to change the grade of precompression easily according to concrete size of current and frequency size, and in advance Pressure mechanism is output shaft and piston component provides reliable restoring force, so that the straight reciprocating motion of piston component is better achieved, Ultimately form good pumping action；(3) devise the indirect cooling system of uniqueness, can effectively prevent cooling down water and leak into inner pump Inner chamber, prevents from driving coil short, and pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft magnetism material Material, and have employed the heat exchanging piece of uniqueness to strengthen cooling effect；(4) Aided design emergency cooling system, running into more extreme High-temperature condition under, paraffin just can melt thus start emergency cooling system, normal condition lower inner cavity be one close space, The least leakage field (when particularly mixing certain soft magnetic materials in paraffin), simple in construction cost is relatively low simultaneously, it is not necessary to Use complicated and relatively costly electric-controlled type cooling system；(5) the new pump sealing apparatus being association of activity and inertia is devised, at piston bottom Portion has installed the barrier film that elastic membraneous material makes additional, and uses again O shape on the circumference importing and exporting position, barrier film of check valve Rubber seal is filled with sealing, and this integral seal mode can reach extraordinary sealing effectiveness, it is also possible to strengthens and lives The restoring force of plug；(6) devising applicable one way valve members, valve block uses and plays steel disc and beryllium-bronze as making material, and Through the Ageing Treatment of insulation in three hours, use the mode of natural air cooling, drastically increase its elastic performance, two Check valve, under the pressure differential of alternation drives, alternately opens and closes, serves rectified action, finally realize the list of liquid medium To flowing continuously.

Accompanying drawing explanation

The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not constitute any limitation of the invention, for Those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtains the attached of other according to the following drawings Figure.

Fig. 1 is the overall structure schematic diagram of this welder；

Fig. 2 is the overall structure schematic diagram of ultra-magnetic telescopic pump；

Fig. 3 is the front view of buckling body；

Fig. 4 is the top view of buckling body；

Fig. 5 is the upward view of pressing means；

Fig. 6 is the structural representation of check valve；

Fig. 7 is the upward view of base；

Fig. 8 is the top view of valve body in check valve assembly；

Fig. 9 is the structural representation of heat exchanging piece.

Reference: ultra-magnetic telescopic pump-1；Connect weldment-2；Contact electric welding head-3；Hydraulic cylinder-4；Controller-5；Super magnetic Cause extension stem-6；Output shaft-7；Piston component-8；Check valve assembly-9；Pressing means-10；End cap-11；Drive coil-12； Inner pump-13；The outer pump housing-14；Cooling chamber-15；Buckling body-16；Sliding tray-17；Link slot-18；Fixing groove-19；Spring-20； Supporting-21；Holding section-22；Piston-23；Fixed body-24；Barrier film-25；Valve block-26；Tubular cooler-27；Small-sized cooling Blower fan-28；Cooling entrance-29；Coolant outlet-30；Base-31；Emergent coolant outlet-32；Emergent cooling entrance-33；Emergent Vented cavity-34；Wax discharging port-35；Closing element-36；Import check valve-37；Outlet check valves-38；Valve body-39；Heat exchanging piece-40； Spiral salient-41；Controller-42.

Detailed description of the invention

The invention will be further described with the following Examples.

Embodiment 1:

A kind of high-precision hydraulic formula welder as shown in Figure 1, including connect weldment 2, contact electric welding 3, hydraulic cylinder 4, Oil feed pump, pressure transducer and controller 5, contact electric welding 3 is driven by hydraulic cylinder 4, and oil feed pump is for hydraulic cylinder 4 Fuel feeding；Pressure transducer is for measuring the contact force between contact electric welding 3 and weldment 2；During welding, controller 5 basis The value of feedback of contact force adjusts the fuel delivery of oil feed pump, thus controls contact force；Described oil feed pump is ultra-magnetic telescopic pump 1. Described pressure transducer is built-in with wireless transmitter, and the force value that pressure transducer detects is sent to controlling by wireless transmitter Device.Described controller uses the rate of change of welding current as feed-forward control signals.Described pressure transducer is deposition tube resistance Type pressure transducer.Described pressure transducer is built-in with wireless transmitter, and the force value that pressure transducer detects passes through wireless Emitter sends to controller.Described controller uses the rate of change of welding current as feed-forward control signals.Described pressure transducer For deposition tube resistance type pressure transducer.

As in figure 2 it is shown, ultra-magnetic telescopic pump 1 is overall vertically-mounted, including the pump housing, giant magnetostrictive rod 6, output shaft 7, live Plug assembly 8, check valve assembly 9, pressing means 10, end cap 11, driving coil 12, indirect cooling system, emergent cooling system System.The pump housing includes inner pump 13 and the outer pump housing 14, forms the cooling chamber 15 of annular between inner pump 13 and the outer pump housing 14.Drive Moving winding 12 is arranged in the inner chamber in inner pump 13, and giant magnetostrictive rod 6 is arranged on the axis driving coil 12, The lower end of output shaft 7 is connected with the upper end of giant magnetostrictive rod 6.Output shaft 7 and the pump housing are made up of the soft magnetic materials of high magnetic permeability, In order to ensure to improve the magnetic field intensity put on giant magnetostrictive rod 6 as much as possible and save material, giant magnetostrictive rod 6 Length is set to identical with the length driving coil 12.Giant magnetostrictive rod 6 is pole shape, be mainly composed of rare earth metal town, Dysprosium and magnesium-yttrium-transition metal ferrum etc..

As shown in Figure 3-4, the outer pump housing 14 upwardly extends formation buckling body 16, and the lower horizontal of output shaft 7 is connected with supporting 21, supporting 21 and part output shaft 7 are contained in buckling body 16.As shown in Figure 3-4, on the wall body of buckling body 16 with Being symmetrically arranged with 2 buckling grooves centered by axis, each buckling groove includes the sliding tray 17 vertically arranged, multiple fixing groove 19 and multiple horizontally disposed link slot 18, sliding tray 17, link slot 18 and fixing groove 19 are sequentially communicated.When holding section 22 When being fastened on the fixing groove 19 of varying level position, giant magnetostrictive rod 6 will obtain different grades of precompression.Such as Fig. 1 and Shown in 5, pressing means 10 is connected with supporting 21 by spring 20, and giant magnetostrictive rod 6 applies precompression, spring 20 It is sleeved on output shaft 7.The applying of precompression can be with appreciable impact magnetostrictive effect.For given magnetic field intensity, apply One optimum precompression load, can be greatly enhanced the strain of magnetostriction materials: apply a precompression, will make material Internal magnetic domain turns to the direction vertical with precompression, and material shrinks in the axial direction.When magnetic field intensity applies vertically, magnetic Farmland rotates, and direction is consistent with magnetization direction, thus creates bigger deformation, namely bigger strain.Pressing means Be symmetrically arranged with centered by axis on the edge of 10 2 with buckling groove with the use of holding section 22, its shapes and sizes Corresponding with fixing groove 19, when applying precompression, pressing means to be pressed for 10 times, holding section 22 enters in sliding tray 17, so After horizontally rotate pressing means 10 and make holding section 22 enter link slot 18, unclamp when arriving the correspondence position of fixing groove 19 and add Casting die 10, holding section 22 is fastened in fixing groove 19 under spring force.The advantage of this applying precompression mode is: (1) the integrated weight of pumping system, beneficially lightweight is reduce further by the design of buckling groove；(2) inventor is through grinding Studying carefully discovery, for one has been designed the ultra-magnetic telescopic pump produced, precompression is to the output flow under different electric currents Influence curve be not linear, be not even continuous print in the case of having, and under different electric currents and frequency range always Have a more excellent even optimum corresponding precompression, therefore for and the common operating personnel of unfamiliar this characteristic for, often Secondary position corresponding to suitable precompression of will finding is a pretty troublesome thing, applies mode by this graduate precompression, The position that needed for can finding oneself to more convenient and quicker, precompression is corresponding.Such as, when input current is 6A, and frequency is 10HZ Time, required precompression is about 15MPa, and when changing the condition of input current, operator can be easily according to tool The size of current of body and frequency size change the position of engaging to change the grade of precompression.Developer can be by through overtesting The parameter area that each grade precompression of drawing is corresponding is labeled in the surface of buckling body 16 to facilitate operator to use.Specifically Progression can be obtained by experiment according to practical situation.(3) simultaneously, pre-pressure mechanism is output shaft 7 and piston component 8 carries Supply reliable restoring force, so that the straight reciprocating motion of piston component 8 is better achieved, ultimately form good pumping action.

Piston component 8 includes fixed body 24 and piston 23, and output shaft 7 is affixed with piston 23 through fixed body 24, piston 23 Bottom is provided with a barrier film 25 made by elastic membraneous material, and it is fixed by screws on fixed body 24, and barrier film 25 will be lived Plug 23, pump chamber are completely separated with the external world, and this integral seal mode can reach extraordinary sealing effectiveness.Due to make every The elastic properties of materials of film 25 is preferable, when giant magnetostrictive rod 6 shrinks, it is also possible to strengthen the restoring force of piston.Increase except using The mode of barrier film 25 seals, in order to reach better seal effect, at import and export position, the circle of barrier film 25 of check valve O shape rubber seal is used again to be filled with sealing on week.

As seen in figs. 6 and 8, check valve assembly 9 includes import check valve 37 and Outlet check valves 38, and both are by contrary side To being arranged on valve body 39, valve block 26 is beam type, relies on the bending of valve block 26 and replys the folding realizing valve port.Valve Sheet 26 can be designed to variously-shaped according to actual use requirement, and when it is installed, the cantilever end of valve block 26 is all and import and export It is in close contact, to guarantee quickly to open and close.When check valve assembly 9 works, when the pressure differential of valve block 26 both sides reaches valve During the unlatching pressure of sheet 26, valve block 26 is acted on by power, and bend deflection, thus realizes the switch of check valve assembly. Valve block 26 employing bullet steel disc and beryllium-bronze are as making material, and through the Ageing Treatment of insulation in three hours, use nature sky The mode of air cooling, drastically increases its elastic performance.The working mechanism of ultra-magnetic telescopic pump 1 can be summarized as follows: super mangneto Telescopic material, in the magnetic field of change, can produce dilatation, and then drive piston to do straight reciprocating motion.Piston movement causes Pump chamber changes, and makes pump chamber and the extraneous pressure differential that produces, two check valves under the pressure differential of alternation drives, alternately open and Close, serve rectified action, finally realize the unidirectional continuous flowing of liquid medium.

Turning now to Fig. 1, when ultra-magnetic telescopic pump 1 is operated in the feelings that big electric current, high capacity or ambient temperature itself is the highest Under condition, drive coil 12 to be susceptible to overheated, owing to driving the distance between coil 12 and giant magnetostrictive rod 6 less, drive The overheated meeting of moving winding 12 makes giant magnetostrictive rod 6 deform, and then causes output flow to change greatly, and the feelings of cutout even occur Condition, is therefore additionally provided with indirect cooling system, and it includes tubular cooler 27, small-sized cooling blower 28, cooling entrance 29 and Coolant outlet 30, is inner pump 13 and the form of the outer pump housing 14 by pump body design simultaneously, and inner pump 13 is the softest by heat conduction Magnetic material is made, and cooling entrance 29 is arranged on the top of the outer pump housing 14, and the bottom of the pump housing 14 is provided with coolant outlet 30 outside, Tubular cooler 27 is integrated on the outer surface of the outer pump housing 14, and cooling entrance 29 is directly connected with tubular cooler 27, cooling Outlet 30 is connected with tubular cooler 27 by small-sized cooling blower 28, is passed through in the spiral coil cooling tube in tubular cooler 27 Cooling water.In ultra-magnetic telescopic pump 1 running, if be detected that the air temperature value of inner pump 13 inner chamber is higher than setting value T1, small-sized cooling blower 28 starts automatically, and the heat of inner pump 13 inner chamber is derived to cooling chamber by the wall body of inner pump 13 14, the circulating cooling under the drive of small-sized cooling blower 28 of the hot-air in cooling chamber 15 simultaneously, thus reduce driving coil 12 Temperature.The benefit of this indirect cooling is, can effectively prevent cooling down water and leak into the inner chamber of inner pump 13, prevent from driving coil 12 short circuits, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft magnetic materials.Small-sized cooling blower The power of 28 is 170w, a length of 150mm of giant magnetostrictive rod 6, and driving size of current is 4A, when frequency is 10HZ, The safe operation cycle of ultra-magnetic telescopic pump 1 increases 20% before not transforming.

It is provided with base 31 in the lower section of the pump housing, base 31 is provided with two emergent coolant outlets 32, upper at inner pump 13 Portion is provided with emergent cooling entrance 33.It is filled with low melting point, such as in emergent coolant outlet 32 and emergent cooling entrance 33 Paraffin, its fusion temperature T2 ＞ T1, can the material of the most differently configured fusing point, this low melting point is also mixed with The appropriate soft magnetic materials identical with pump housing material.The cross section of emergent coolant outlet 32 is arranged to inverted trapezoidal shape, emergent cooling entrance The cross section of 33 is arranged to the most tapered trapezoidal shape, can effectively prevent paraffin from not melting and i.e. drop, and can guarantee that melted paraffin wax Time can direction along design drop smoothly.Emergent coolant outlet 32 is connected with the emergency ventilation chamber 34 being arranged on below, The lower surface in emergency ventilation chamber 34 is inclined-plane, and its one end is connected with the inlet duct of small-sized cooling blower 28, the other end and row Wax mouth 35 connects.When the air themperature of inner pump 13 inner chamber is more than T2, send report by alarm device (not shown) Alert, paraffin starts fusing simultaneously, and the paraffin after melting in emergent coolant outlet 32 falls in emergency ventilation chamber 34, and along tiltedly Face falls into wax discharging port 35, now meets an urgent need coolant outlet 32 and entrance 33 is opened because of the fusing of paraffin, owing to T2 is more than T1, The most small-sized cooling blower 28 has run, and the hot-air of inner chamber is directly circulated cold under the drive of small-sized cooling blower 28 But.The advantage of this emergent cooling structure is: the most directly use cooling water, it is to avoid leaks and causes driving the wind of coil 12 short circuit Danger；Running into compared with (such as load, current swing is big) under extreme high-temperature condition, paraffin just can melt thus start emergent cooling System, normal condition lower inner cavity is a space closed, and the least leakage field (particularly mixes certain in paraffin During soft magnetic materials), simple in construction cost is relatively low simultaneously, it is not necessary to use complicated and relatively costly electric-controlled type cooling system.

The end of wax discharging port 35 is airtight by closing element 36, and closing element 36 is bolted on the bottom of base 31.When needing When wanting de-waxing, unclamp bolt and take off closing element 36 by paraffin discharge.As it is shown in fig. 7, the pump housing and base 31 are by upper and lower two Point fastening forms, and within the pump shutdown time period (if desired can also on-line operation operation), operator can be by the pump housing and base 31 disassemble and refill paraffin, and clean out and answer the paraffin of residual in cooling chamber 15 and emergency ventilation chamber 34.Emergent cooling Flow into the paraffin in cooling chamber 15 after entrance 33 fusing could to clear up, it is contemplated that melted paraffin wax is also after the pump housing is dismantled Non-recurrent event and the volume of cooling chamber 15 is more much bigger than the volume in emergency ventilation chamber 34, actual motion has no effect on Pump properly functioning.

Preferably, as it is shown in figure 9, be additionally provided with the heat exchanging piece 40 of multiple outwardly convex, heat exchange on the outer surface of inner pump 13 Part 40 entirety is round table-like, and the side of each heat exchanging piece 40 is provided with multiple spiral salient 41, adjacent two spiral salients 41 The hand of spiral contrary, the most previous dextrorotation, later derotation,...The heat exchanging piece 40 of this particular design can be effectively increased sky Gas and the turbulent flow on inner pump 13 surface, to increase heat exchange efficiency.

In the welder of this embodiment, (1) can be precisely controlled fuel supply flow rate, thus controls welding effect, and has heat radiation The advantages such as condition is good, and cycle of operation is long, and maintenance is convenient.(2) devise a kind of new precompression and apply mechanism, this applying Precompression mode reduce further the integrated weight of pumping system, beneficially lightweight by the design of buckling groove；Simultaneously by this Kind of graduate precompression applies mode, operator can find oneself to more convenient and quicker needed for position corresponding to precompression, The position of engaging can be changed to change the grade of precompression easily according to concrete size of current and frequency size, and in advance Pressure mechanism is output shaft and piston component provides reliable restoring force, so that the straight reciprocating motion of piston component is better achieved, Ultimately form good pumping action；(3) devise the indirect cooling system of uniqueness, can effectively prevent cooling down water and leak into inner pump 13 Inner chamber, prevent drive coil 12 short circuit, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft Magnetic material, and have employed the heat exchanging piece 40 of uniqueness to strengthen cooling effect；The power of small-sized cooling blower 28 is 170w, super magnetic Causing a length of 150mm of extension stem 6, driving size of current is 4A, when frequency is 10HZ, and the safety fortune of ultra-magnetic telescopic pump 1 Line period increases 20% before not transforming；(4) Aided design emergency cooling system, under run into more extreme high-temperature condition, Paraffin just can melt thus start emergency cooling system, and normal condition lower inner cavity is a space closed, the least leakage Magnetic (when particularly mixing certain soft magnetic materials in paraffin), simple in construction cost is relatively low simultaneously, it is not necessary to use complicated and cost Higher electric-controlled type cooling system；(5) devise the new pump sealing apparatus being association of activity and inertia, be additionally arranged at the bottom elasticity at piston 23 The barrier film 25 that thin-film material makes, and use again O shape rubber close on the circumference importing and exporting position, barrier film 25 of check valve Seal is filled with sealing, and this integral seal mode can reach extraordinary sealing effectiveness, it is also possible to strengthen returning of piston Multiple power；(6) devising applicable one way valve members, valve block 26 employing bullet steel disc and beryllium-bronze are as making material, and pass through The Ageing Treatment of insulation in three hours, uses the mode of natural air cooling, drastically increases its elastic performance, and two unidirectional Valve, under the pressure differential of alternation drives, alternately opens and closes, serves rectified action, finally realize the unidirectional company of liquid medium Afterflow is moved.

Embodiment 2:

A kind of high-precision hydraulic formula welder as shown in Figure 1, including connect weldment 2, contact electric welding 3, hydraulic cylinder 4, Oil feed pump, pressure transducer and controller 5, contact electric welding 3 is driven by hydraulic cylinder 4, and oil feed pump is for hydraulic cylinder 4 Fuel feeding；Pressure transducer is for measuring the contact force between contact electric welding 3 and weldment 2；During welding, controller 5 basis The value of feedback of contact force adjusts the fuel delivery of oil feed pump, thus controls contact force；Described oil feed pump is ultra-magnetic telescopic pump 1. Described pressure transducer is built-in with wireless transmitter, and the force value that pressure transducer detects is sent to controlling by wireless transmitter Device.Described controller uses the rate of change of welding current as feed-forward control signals.Described pressure transducer is deposition tube resistance Type pressure transducer.

Turning now to Fig. 1, when ultra-magnetic telescopic pump 1 is operated in the feelings that big electric current, high capacity or ambient temperature itself is the highest Under condition, drive coil 12 to be susceptible to overheated, owing to driving the distance between coil 12 and giant magnetostrictive rod 6 less, drive The overheated meeting of moving winding 12 makes giant magnetostrictive rod 6 deform, and then causes output flow to change greatly, and the feelings of cutout even occur Condition, is therefore additionally provided with indirect cooling system, and it includes tubular cooler 27, small-sized cooling blower 28, cooling entrance 29 and Coolant outlet 30, is inner pump 13 and the form of the outer pump housing 14 by pump body design simultaneously, and inner pump 13 is the softest by heat conduction Magnetic material is made, and cooling entrance 29 is arranged on the top of the outer pump housing 14, and the bottom of the pump housing 14 is provided with coolant outlet 30 outside, Tubular cooler 27 is integrated on the outer surface of the outer pump housing 14, and cooling entrance 29 is directly connected with tubular cooler 27, cooling Outlet 30 is connected with tubular cooler 27 by small-sized cooling blower 28, is passed through in the spiral coil cooling tube in tubular cooler 27 Cooling water.In ultra-magnetic telescopic pump 1 running, if be detected that the air temperature value of inner pump 13 inner chamber is higher than setting value T1, small-sized cooling blower 28 starts automatically, and the heat of inner pump 13 inner chamber is derived to cooling chamber by the wall body of inner pump 13 14, the circulating cooling under the drive of small-sized cooling blower 28 of the hot-air in cooling chamber 15 simultaneously, thus reduce driving coil 12 Temperature.The benefit of this indirect cooling is, can effectively prevent cooling down water and leak into the inner chamber of inner pump 13, prevent from driving coil 12 short circuits, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft magnetic materials.Small-sized cooling blower The power of 28 is 190w, a length of 150mm of giant magnetostrictive rod 6, and driving size of current is 6A, when frequency is 10HZ, The safe operation cycle of ultra-magnetic telescopic pump 1 increases 25% before not transforming.

Preferably, as it is shown in figure 9, be additionally provided with the heat exchanging piece 40 of multiple outwardly convex, heat exchange on the outer surface of inner pump 13 Part 40 entirety is round table-like, and the side of each heat exchanging piece 40 is provided with multiple spiral salient 41, adjacent two spiral salients 41 The hand of spiral contrary, the most previous dextrorotation, later derotation,....The heat exchanging piece 40 of this particular design can be effectively increased sky Gas and the turbulent flow on inner pump 13 surface, to increase heat exchange efficiency.

In the welder of this embodiment, (1) can be precisely controlled fuel supply flow rate, thus controls welding effect, and has heat radiation The advantages such as condition is good, and cycle of operation is long, and maintenance is convenient.(2) devise a kind of new precompression and apply mechanism, this applying Precompression mode reduce further the integrated weight of pumping system, beneficially lightweight by the design of buckling groove；Simultaneously by this Kind of graduate precompression applies mode, operator can find oneself to more convenient and quicker needed for position corresponding to precompression, The position of engaging can be changed to change the grade of precompression easily according to concrete size of current and frequency size, and in advance Pressure mechanism is output shaft and piston component provides reliable restoring force, so that the straight reciprocating motion of piston component is better achieved, Ultimately form good pumping action；(3) devise the indirect cooling system of uniqueness, can effectively prevent cooling down water and leak into inner pump 13 Inner chamber, prevent drive coil 12 short circuit, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft Magnetic material, and have employed the heat exchanging piece 40 of uniqueness to strengthen cooling effect；The power of small-sized cooling blower 28 is 190w, super magnetic Causing a length of 150mm of extension stem 6, driving size of current is 6A, when frequency is 10HZ, and the safety fortune of ultra-magnetic telescopic pump 1 Line period increases 25% before not transforming；(4) Aided design emergency cooling system, under run into more extreme high-temperature condition, Paraffin just can melt thus start emergency cooling system, and normal condition lower inner cavity is a space closed, the least leakage Magnetic (when particularly mixing certain soft magnetic materials in paraffin), simple in construction cost is relatively low simultaneously, it is not necessary to use complicated and cost Higher electric-controlled type cooling system；(5) devise the new pump sealing apparatus being association of activity and inertia, be additionally arranged at the bottom elasticity at piston 23 The barrier film 25 that thin-film material makes, and use again O shape rubber close on the circumference importing and exporting position, barrier film 25 of check valve Seal is filled with sealing, and this integral seal mode can reach extraordinary sealing effectiveness, it is also possible to strengthen returning of piston Multiple power；(6) devising applicable one way valve members, valve block 26 employing bullet steel disc and beryllium-bronze are as making material, and pass through The Ageing Treatment of insulation in three hours, uses the mode of natural air cooling, drastically increases its elastic performance, and two unidirectional Valve, under the pressure differential of alternation drives, alternately opens and closes, serves rectified action, finally realize the unidirectional company of liquid medium Afterflow is moved.·

Embodiment 3:

Turning now to Fig. 1, when ultra-magnetic telescopic pump 1 is operated in the feelings that big electric current, high capacity or ambient temperature itself is the highest Under condition, drive coil 12 to be susceptible to overheated, owing to driving the distance between coil 12 and giant magnetostrictive rod 6 less, drive The overheated meeting of moving winding 12 makes giant magnetostrictive rod 6 deform, and then causes output flow to change greatly, and the feelings of cutout even occur Condition, is therefore additionally provided with indirect cooling system, and it includes tubular cooler 27, small-sized cooling blower 28, cooling entrance 29 and Coolant outlet 30, is inner pump 13 and the form of the outer pump housing 14 by pump body design simultaneously, and inner pump 13 is the softest by heat conduction Magnetic material is made, and cooling entrance 29 is arranged on the top of the outer pump housing 14, and the bottom of the pump housing 14 is provided with coolant outlet 30 outside, Tubular cooler 27 is integrated on the outer surface of the outer pump housing 14, and cooling entrance 29 is directly connected with tubular cooler 27, cooling Outlet 30 is connected with tubular cooler 27 by small-sized cooling blower 28, is passed through in the spiral coil cooling tube in tubular cooler 27 Cooling water.In ultra-magnetic telescopic pump 1 running, if be detected that the air temperature value of inner pump 13 inner chamber is higher than setting value T1, small-sized cooling blower 28 starts automatically, and the heat of inner pump 13 inner chamber is derived to cooling chamber by the wall body of inner pump 13 14, the circulating cooling under the drive of small-sized cooling blower 28 of the hot-air in cooling chamber 15 simultaneously, thus reduce driving coil 12 Temperature.The benefit of this indirect cooling is, can effectively prevent cooling down water and leak into the inner chamber of inner pump 13, prevent from driving coil 12 short circuits, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft magnetic materials.Small-sized cooling blower The power of 28 is 210w, a length of 150mm of giant magnetostrictive rod 6, and driving size of current is 8A, when frequency is 10HZ, The safe operation cycle of ultra-magnetic telescopic pump 1 increases 30% before not transforming.

In the welder of this embodiment, (1) can be precisely controlled fuel supply flow rate, thus controls welding effect, and has heat radiation The advantages such as condition is good, and cycle of operation is long, and maintenance is convenient.(2) devise a kind of new precompression and apply mechanism, this applying Precompression mode reduce further the integrated weight of pumping system, beneficially lightweight by the design of buckling groove；Simultaneously by this Kind of graduate precompression applies mode, operator can find oneself to more convenient and quicker needed for position corresponding to precompression, The position of engaging can be changed to change the grade of precompression easily according to concrete size of current and frequency size, and in advance Pressure mechanism is output shaft and piston component provides reliable restoring force, so that the straight reciprocating motion of piston component is better achieved, Ultimately form good pumping action；(3) devise the indirect cooling system of uniqueness, can effectively prevent cooling down water and leak into inner pump 13 Inner chamber, prevent drive coil 12 short circuit, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft Magnetic material, and have employed the heat exchanging piece 40 of uniqueness to strengthen cooling effect；The power of small-sized cooling blower 28 is 210w, super magnetic Causing a length of 150mm of extension stem 6, driving size of current is 8A, when frequency is 10HZ, and the safety fortune of ultra-magnetic telescopic pump 1 Line period increases 30% before not transforming；(4) Aided design emergency cooling system, under run into more extreme high-temperature condition, Paraffin just can melt thus start emergency cooling system, and normal condition lower inner cavity is a space closed, the least leakage Magnetic (when particularly mixing certain soft magnetic materials in paraffin), simple in construction cost is relatively low simultaneously, it is not necessary to use complicated and cost Higher electric-controlled type cooling system；(5) devise the new pump sealing apparatus being association of activity and inertia, be additionally arranged at the bottom elasticity at piston 23 The barrier film 25 that thin-film material makes, and use again O shape rubber close on the circumference importing and exporting position, barrier film 25 of check valve Seal is filled with sealing, and this integral seal mode can reach extraordinary sealing effectiveness, it is also possible to strengthen returning of piston Multiple power；(6) devising applicable one way valve members, valve block 26 employing bullet steel disc and beryllium-bronze are as making material, and pass through The Ageing Treatment of insulation in three hours, uses the mode of natural air cooling, drastically increases its elastic performance, and two unidirectional Valve, under the pressure differential of alternation drives, alternately opens and closes, serves rectified action, finally realize the unidirectional company of liquid medium Afterflow is moved.

Embodiment 4:

Turning now to Fig. 1, when ultra-magnetic telescopic pump 1 is operated in the feelings that big electric current, high capacity or ambient temperature itself is the highest Under condition, drive coil 12 to be susceptible to overheated, owing to driving the distance between coil 12 and giant magnetostrictive rod 6 less, drive The overheated meeting of moving winding 12 makes giant magnetostrictive rod 6 deform, and then causes output flow to change greatly, and the feelings of cutout even occur Condition, is therefore additionally provided with indirect cooling system, and it includes tubular cooler 27, small-sized cooling blower 28, cooling entrance 29 and Coolant outlet 30, is inner pump 13 and the form of the outer pump housing 14 by pump body design simultaneously, and inner pump 13 is the softest by heat conduction Magnetic material is made, and cooling entrance 29 is arranged on the top of the outer pump housing 14, and the bottom of the pump housing 14 is provided with coolant outlet 30 outside, Tubular cooler 27 is integrated on the outer surface of the outer pump housing 14, and cooling entrance 29 is directly connected with tubular cooler 27, cooling Outlet 30 is connected with tubular cooler 27 by small-sized cooling blower 28, is passed through in the spiral coil cooling tube in tubular cooler 27 Cooling water.In ultra-magnetic telescopic pump 1 running, if be detected that the air temperature value of inner pump 13 inner chamber is higher than setting value T1, small-sized cooling blower 28 starts automatically, and the heat of inner pump 13 inner chamber is derived to cooling chamber by the wall body of inner pump 13 14, the circulating cooling under the drive of small-sized cooling blower 28 of the hot-air in cooling chamber 15 simultaneously, thus reduce driving coil 12 Temperature.The benefit of this indirect cooling is, can effectively prevent cooling down water and leak into the inner chamber of inner pump 13, prevent from driving coil 12 short circuits, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft magnetic materials.Small-sized cooling blower The power of 28 is 230w, a length of 150mm of giant magnetostrictive rod 6, and driving size of current is 9A, when frequency is 10HZ, The safe operation cycle of ultra-magnetic telescopic pump 1 increases 35% before not transforming.

In the welder of this embodiment, (1) can be precisely controlled fuel supply flow rate, thus controls welding effect, and has heat radiation The advantages such as condition is good, and cycle of operation is long, and maintenance is convenient.(2) devise a kind of new precompression and apply mechanism, this applying Precompression mode reduce further the integrated weight of pumping system, beneficially lightweight by the design of buckling groove；Simultaneously by this Kind of graduate precompression applies mode, operator can find oneself to more convenient and quicker needed for position corresponding to precompression, The position of engaging can be changed to change the grade of precompression easily according to concrete size of current and frequency size, and in advance Pressure mechanism is output shaft and piston component provides reliable restoring force, so that the straight reciprocating motion of piston component is better achieved, Ultimately form good pumping action；(3) devise the indirect cooling system of uniqueness, can effectively prevent cooling down water and leak into inner pump 13 Inner chamber, prevent drive coil 12 short circuit, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft Magnetic material, and have employed the heat exchanging piece 40 of uniqueness to strengthen cooling effect；The power of small-sized cooling blower 28 is 230w, super magnetic Causing a length of 150mm of extension stem 6, driving size of current is 9A, when frequency is 10HZ, and the safety fortune of ultra-magnetic telescopic pump 1 Line period increases 35% before not transforming；(4) Aided design emergency cooling system, under run into more extreme high-temperature condition, Paraffin just can melt thus start emergency cooling system, and normal condition lower inner cavity is a space closed, the least leakage Magnetic (when particularly mixing certain soft magnetic materials in paraffin), simple in construction cost is relatively low simultaneously, it is not necessary to use complicated and cost Higher electric-controlled type cooling system；(5) devise the new pump sealing apparatus being association of activity and inertia, be additionally arranged at the bottom elasticity at piston 23 The barrier film 25 that thin-film material makes, and use again O shape rubber close on the circumference importing and exporting position, barrier film 25 of check valve Seal is filled with sealing, and this integral seal mode can reach extraordinary sealing effectiveness, it is also possible to strengthen returning of piston Multiple power；(6) devising applicable one way valve members, valve block 26 employing bullet steel disc and beryllium-bronze are as making material, and pass through The Ageing Treatment of insulation in three hours, uses the mode of natural air cooling, drastically increases its elastic performance, and two unidirectional Valve, under the pressure differential of alternation drives, alternately opens and closes, serves rectified action, finally realize the unidirectional company of liquid medium Afterflow is moved.

Embodiment 5:

Turning now to Fig. 1, when ultra-magnetic telescopic pump 1 is operated in the feelings that big electric current, high capacity or ambient temperature itself is the highest Under condition, drive coil 12 to be susceptible to overheated, owing to driving the distance between coil 12 and giant magnetostrictive rod 6 less, drive The overheated meeting of moving winding 12 makes giant magnetostrictive rod 6 deform, and then causes output flow to change greatly, and the feelings of cutout even occur Condition, is therefore additionally provided with indirect cooling system, and it includes tubular cooler 27, small-sized cooling blower 28, cooling entrance 29 and Coolant outlet 30, is inner pump 13 and the form of the outer pump housing 14 by pump body design simultaneously, and inner pump 13 is the softest by heat conduction Magnetic material is made, and cooling entrance 29 is arranged on the top of the outer pump housing 14, and the bottom of the pump housing 14 is provided with coolant outlet 30 outside, Tubular cooler 27 is integrated on the outer surface of the outer pump housing 14, and cooling entrance 29 is directly connected with tubular cooler 27, cooling Outlet 30 is connected with tubular cooler 27 by small-sized cooling blower 28, is passed through in the spiral coil cooling tube in tubular cooler 27 Cooling water.In ultra-magnetic telescopic pump 1 running, if be detected that the air temperature value of inner pump 13 inner chamber is higher than setting value T1, small-sized cooling blower 28 starts automatically, and the heat of inner pump 13 inner chamber is derived to cooling chamber by the wall body of inner pump 13 14, the circulating cooling under the drive of small-sized cooling blower 28 of the hot-air in cooling chamber 15 simultaneously, thus reduce driving coil 12 Temperature.The benefit of this indirect cooling is, can effectively prevent cooling down water and leak into the inner chamber of inner pump 13, prevent from driving coil 12 short circuits, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft magnetic materials.Small-sized cooling blower The power of 28 is 250w, a length of 150mm of giant magnetostrictive rod 6, and driving size of current is 10A, when frequency is 10HZ, The safe operation cycle of ultra-magnetic telescopic pump 1 increases 40% before not transforming.

In the welder of this embodiment, (1) can be precisely controlled fuel supply flow rate, thus controls welding effect, and has heat radiation The advantages such as condition is good, and cycle of operation is long, and maintenance is convenient.(2) devise a kind of new precompression and apply mechanism, this applying Precompression mode reduce further the integrated weight of pumping system, beneficially lightweight by the design of buckling groove；Simultaneously by this Kind of graduate precompression applies mode, operator can find oneself to more convenient and quicker needed for position corresponding to precompression, The position of engaging can be changed to change the grade of precompression easily according to concrete size of current and frequency size, and in advance Pressure mechanism is output shaft and piston component provides reliable restoring force, so that the straight reciprocating motion of piston component is better achieved, Ultimately form good pumping action；(3) devise the indirect cooling system of uniqueness, can effectively prevent cooling down water and leak into inner pump 13 Inner chamber, prevent drive coil 12 short circuit, pump body design becomes the form of hollow also can effectively alleviate the weight of pump simultaneously, saves soft Magnetic material, and have employed the heat exchanging piece 40 of uniqueness to strengthen cooling effect；The power of small-sized cooling blower 28 is 250w, super magnetic Causing a length of 150mm of extension stem 6, driving size of current is 10A, when frequency is 10HZ, and the safety of ultra-magnetic telescopic pump 1 Cycle of operation increases 40% before not transforming；(4) Aided design emergency cooling system, is running into more extreme high-temperature condition Under, paraffin just can melt thus start emergency cooling system, and normal condition lower inner cavity is a space closed, the least Leakage field (when particularly mixing certain soft magnetic materials in paraffin), simple in construction cost is relatively low simultaneously, it is not necessary to use complicated and Relatively costly electric-controlled type cooling system；(5) devise the new pump sealing apparatus being association of activity and inertia, be additionally arranged at the bottom at piston 23 The barrier film 25 that elastic membraneous material makes, and use again O shape rubber on the circumference importing and exporting position, barrier film 25 of check valve Glue sealing ring is filled with sealing, and this integral seal mode can reach extraordinary sealing effectiveness, it is also possible to strengthen piston Restoring force；(6) devising applicable one way valve members, valve block 26 uses and plays steel disc and beryllium-bronze as making material, and Through the Ageing Treatment of insulation in three hours, use the mode of natural air cooling, drastically increase its elastic performance, two Check valve, under the pressure differential of alternation drives, alternately opens and closes, serves rectified action, finally realize the list of liquid medium To flowing continuously.

Last it should be noted that, above example is only in order to illustrate technical scheme, rather than to scope Restriction, although having made to explain to the present invention with reference to preferred embodiment, it will be understood by those within the art that, Technical scheme can be modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.

Claims

1. a high-precision hydraulic formula welder, is characterized in that, including connecing weldment, contact electric welding head, hydraulic cylinder, oil feed pump, pressure transducer and controller, contact electric welding head is by Driven by Hydraulic Cylinder, and oil feed pump is for hydraulic cylinder fuel feeding；Pressure transducer is for measuring the contact force between contact electric welding head and weldment；During welding, controller adjusts the fuel delivery of oil feed pump according to the value of feedback of contact force, thus controls contact force.

2.According to claimA kind of high-precision hydraulic formula welder described in 1, is characterized in that, described pressure transducer is built-in with wireless transmitter, and the force value that pressure transducer detects is sent to controller by wireless transmitter.

3.According to claimA kind of high-precision hydraulic formula welder described in 1, is characterized in that, described controller uses the rate of change of welding current as feed-forward control signals.

4.According to claimA kind of high-precision hydraulic formula welder described in 1, is characterized in that, described pressure transducer is deposition tube resistance type pressure transducer.

5.According to claimA kind of high-precision hydraulic formula welder described in 1, it is characterized in that, described oil feed pump is ultra-magnetic telescopic pump, described ultra-magnetic telescopic pump entirety is vertically-mounted, it includes the pump housing, giant magnetostrictive rod, output shaft, piston component, check valve assembly, pressing means, end cap, driving coil, indirect cooling system and emergency cooling system, the pump housing includes inner pump and the outer pump housing, forms the cooling chamber of annular between inner pump and the outer pump housing；Driving coil to be contained in the inner chamber of described inner pump, giant magnetostrictive rod is arranged on the axis of described driving coil；The lower end of output shaft is connected with the upper end of giant magnetostrictive rod, and output shaft and the pump housing are made by the soft magnetic materials of high magnetic permeability, and the length of giant magnetostrictive rod is equal with the length driving coil；Giant magnetostrictive rod is pole shape, and it makes material and includes rare earth metal town, dysprosium and magnesium-yttrium-transition metal ferrum；

The described outer pump housing upwardly extends formation buckling body, the lower horizontal of output shaft is connected with supporting, supporting and part output shaft are contained in buckling body, centered by axis, 2 buckling grooves it are symmetrically arranged with on the wall body of buckling body, each buckling groove includes the sliding tray vertically arranged, multiple fixing groove and multiple horizontally disposed link slot, and described sliding tray, link slot and fixing groove are sequentially communicated；Described pressing means is connected with supporting by spring, and for giant magnetostrictive rod is applied precompression, described spring housing is contained on output shaft；Be symmetrically arranged with centered by axis on the edge of described pressing means 2 with described buckling groove with the use of holding section, its shapes and sizes match with the shapes and sizes of fixing groove, when holding section is fastened on the fixing groove of varying level position, giant magnetostrictive rod obtains different grades of precompression；Applying to press under pressing means during precompression, holding section enters in sliding tray, horizontally rotates pressing means and makes holding section enter link slot, unclamps pressing means when arriving the correspondence position of fixing groove, and holding section is fastened in described fixing groove under spring force；

Described piston component includes fixed body and piston, output shaft is affixed with piston through fixed body, piston base is provided with a barrier film made by elastic membraneous material, it is fixed by screws on fixed body, barrier film is completely separated with the external world by piston, pump chamber, is simultaneously used for strengthening when giant magnetostrictive rod shrinks the restoring force of piston；

Described check valve assembly includes import check valve and Outlet check valves, and both are arranged on valve body in the opposite direction, and valve block is beam type, is realized the folding of valve port by the bending of valve block and replying, and the cantilever end of valve block is in close contact with import or export；Described valve block uses and plays steel disc and beryllium-bronze as making material, through insulation in three hours Ageing Treatment, and the mode using natural air to cool down cool down；Described giant magnetostrictive rod produces dilatation in the magnetic field of change, piston is driven to do straight reciprocating motion, piston movement causes pump chamber to change, two check valves are under the pressure differential of alternation drives, alternately open and close, serve rectified action, finally realize the unidirectional continuous flowing of liquid medium；The import and export of check valve, barrier film circumference on all use O shape rubber seal be filled with seal；

Described indirect cooling system includes tubular cooler, small-sized cooling blower, cooling entrance and coolant outlet, and inner pump is made up of the soft magnetic materials of heat conduction, and cooling entrance is arranged on the top of the outer pump housing, and coolant outlet is arranged on the bottom of the outer pump housing；Described tubular cooler is integrated on the outer surface of the outer pump housing, and cooling entrance is directly connected with tubular cooler, and coolant outlet is connected with described tubular cooler by small-sized cooling blower, is passed through cooling water in the spiral coil cooling tube in tubular cooler；During ultra-magnetic telescopic pump operation, when air temperature value inner pump inner chamber being detected is higher than setting value T1, small-sized cooling blower starts automatically, the heat of inner pump inner chamber is derived to cooling chamber by the wall body of inner pump, hot-air in cooling chamber is circulated cooling under the drive of small-sized cooling blower simultaneously, thus reduces the temperature driving coil；The power of described small-sized cooling blower is 170w, a length of 150mm of described giant magnetostrictive rod, and driving size of current is 4A, and frequency is 10HZ.

6.According to claimA kind of high-precision hydraulic formula welder described in 5, it is characterized in that, described emergency cooling system includes emergent cooling entrance, emergent cooling chamber and 2 emergent coolant outlets, and 2 described emergent coolant outlets are arranged in the base below the pump housing, and emergent cooling entrance is arranged on the top of inner pump；It is filled with low melting point in described emergent coolant outlet and emergent cooling entrance, its fusion temperature T2 ＞ T1, the soft magnetic materials identical with described pump housing material being also mixed with in this low melting point；The cross section of described emergent coolant outlet is inverted trapezoidal shape, and the cross section of emergent cooling entrance is arranged to the most tapered trapezoidal shape；Described emergent coolant outlet is connected with the emergency ventilation chamber being arranged on below, and the lower surface in emergency ventilation chamber is inclined-plane, and its one end is connected with the inlet duct of small-sized cooling blower, and the other end connects with wax discharging port；When the air themperature of inner pump inner chamber is more than T2, paraffin starts fusing, emergent coolant outlet and entrance and is opened because of the fusing of paraffin, and the hot-air of inner chamber is directly circulated cooling under the drive of small-sized cooling blower；Paraffin after melting in emergent coolant outlet falls into emergency ventilation intracavity, and falls into wax discharging port along inclined-plane；The end of described wax discharging port is provided with closing element, and closing element is bolted on the bottom of base, when needs de-waxing, unclamps bolt and takes off closing element by paraffin discharge；The described pump housing and base are fastened by upper and lower two parts and form, and the pump housing and base are disassembled for operator and refill paraffin, and clean out and answer the paraffin of residual in cooling chamber and emergency ventilation chamber.

7.According to claimA kind of high-precision hydraulic formula welder described in 6, it is characterized in that, the heat exchanging piece of multiple outwardly convex it is additionally provided with on the outer surface of described inner pump, described heat exchanging piece is overall in round table-like, being provided with multiple spiral salient on the side of each heat exchanging piece, the hand of spiral of adjacent two spiral salients is contrary.