CN208117001U - A kind of compound Linear fiction welding device - Google Patents

Abstract

The utility model discloses a kind of compound Linear fiction welding devices, it is desirable to provide a kind of to have different vibration force and vibration frequency, the wide compound Linear fiction welding device of frequency adjustable extent in the different phase of welding, unlike material.The utility model includes upper spider, lower bearing bracket, upper pressure-driven mechanism, pushes power drive mechanism, upper fixture and lower fixture, when welding, upper pressure-driven mechanism and pushes power drive mechanism and exports opposite active force；A kind of compound Linear fiction welding device further includes mechanical vibrator and electromagnetic oscillation device, mechanical vibrator is connect with upper fixture or upper pressure-driven mechanism driving, electromagnetic oscillation device is connected with lower fixture or pushing power drive mechanism, and the direction of vibration that mechanical vibrator and electromagnetic oscillation device generate is vertical with the force direction of upper pressure-driven mechanism or pushing power drive mechanism output.The utility model is applied to the technical field of linear friction welding.

Description

A kind of compound Linear fiction welding device

Technical field

The utility model relates to a kind of Linear fiction welding device, in particular to a kind of compound linear friction welding is set It is standby.

Background technique

Friction welding is under external force, to move generated heat using the relative friction between weldment contact surface, So that contact surface and its near region metal is reached visco-plasticity state and generate macroscopic view plastic deformation appropriate, passes through the phase between two layers of material Counterdiffusion and dynamic recrystallization and complete to weld.

By years of researches, until 1985, by Allwood, Searle@Timney company was responsible for researching and designing, Blacks equipment company is responsible for machine manufacture, and Rolls-Royce company offers technical cooperation, and several companies have developed generation jointly First linear friction welding machine in boundary, the equipment reciprocating mechanism frequency is up to 75Hz, and displacement amplitude is scholar 3mm, mainly Manufacture and maintenance for aero-engine.

In recent years, linear friction welding technique was manufactured applied to aircraft engine integral blade disk, hollow blade leaf dish etc. Journey achieves the achievement to attract people's attention in the application aspect of aero-engine.General Electric Company aero-engine portion (GEAE) linear friction welding is used for the welding of aeronautical material, and is taken in terms of the welding and built-up welding of titanium alloy and nickel based super alloy Obtained very ten-strike.CTC technology company of the U.S. is that USN completes a linear friction welding research project, not to seven kinds Welding experiment has been carried out with alloy and two groups of dissimilar metals.German MTU company uses English when producing EJ200 engine at first The linear friction welding machine welding integral leaf dish structure of Blacks equipment company of state manufacture.Pu Hui company of the U.S. is developing forth generation When the power device F119 engine of fighter plane, blade and wheel disc are welded into one with linear friction welding.Northwestern Polytechnical University Friction welding research institute is to the numerical simulation during linear friction welding, thermo-mechanical coupling, single-chip microcontroller control etc. into It has gone theoretical research, and has carried out the experimental study of motor-driven linear friction welding machine.

The reciprocating manner of linear friction welding machine determines the performance of friction-welding machine, and current linear friction welding machine is reciprocal Movement mainly has mechanical, fluid pressure type and electromagnetic type.Mechanical type friction welder power is big, and frequency is low, and inertia force is big, and vibration is big； Hydraulic friction welding machine force is more uniform, and high frequency performance is poor, hydraulic oil quick heating, bubble easy to form, and vibration force is unstable；Electricity Magnetic-type friction-welding machine high frequency performance is good, but vibration force is insufficient.

Utility model content

Technical problem to be solved in the utility model be overcome the deficiencies of the prior art and provide it is a kind of compound linear Friction welding apparatus, which has vibration force and frequency is adjustable and welding workpiece size not The characteristics of being limited by equipment size has different vibration force and vibration frequency, frequency in the different phase of welding, unlike material Adjustable extent is wide, overcomes the deficiency of existing Linear fiction welding device.

Technical solution used by the utility model is：The utility model includes upper spider, lower bearing bracket, upper pressure-driven machine Structure pushes power drive mechanism, upper fixture and lower fixture, and the upper spider is located at the top of the lower bearing bracket, and the upper pressure is driven The upper end of motivation structure is hinged with the upper spider, and the lower end of the upper pressure-driven mechanism is connected with the upper fixture, institute It states pushing power drive mechanism lower end to be hinged with the lower bearing bracket, the pushing power drive mechanism upper end is connected with the lower fixture It connects, when welding, the upper pressure-driven mechanism and the pushing power drive mechanism export opposite active force；Described one kind is compound Linear friction welding apparatus further includes mechanical vibrator and electromagnetic oscillation device, the mechanical vibrator and the upper card Tool or the upper pressure-driven mechanism driving connection, the electromagnetic oscillation device and the lower fixture or the pushing force driving machine Structure is connected, the direction of vibration that the mechanical vibrator and the electromagnetic oscillation device generate with the upper pressure-driven machine Structure or the force direction for pushing power drive mechanism output are vertical.

Further, a kind of compound Linear fiction welding device further includes side stand, and the side of the side stand is sliding It is dynamic to be provided with slide, the slidable adjustment device being connected with the slide, the mechanical oscillation dress are provided on the lower bearing bracket It installs on the slide.

Further, the mechanical vibrator include driving motor, support, driving wheel, driven wheel, transmission belt, crank and Connecting rod, the driving motor and the support are arranged on the slide, and the driving motor and the capstan drive connect Connect, the driven wheel is connect by the transmission belt with the capstan drive, the centre rotational axis of the crank with it is described from The rotation center of driving wheel is sequentially connected, and one end of the connecting rod and the eccentric shaft of the crank are hinged, and the seat supports are lived The centre rotational axis of the crank.

Further, brake is provided on the centre rotational axis of the crank.

Further, the slidable adjustment device include the adjusting screw rod being threadedly coupled with the slide and with the adjusting silk The adjusting motor of bar transmission connection.

Further, the electromagnetic oscillation device includes left electromagnet, middle permanent magnet and right electromagnet, the left electromagnet and The right electromagnet is symmetricly set on the left and right both sides for pushing power drive mechanism, and the middle permanent magnet is arranged in the pushing The middle part of power drive mechanism or the middle permanent magnet are symmetrically distributed in the periphery for pushing power drive mechanism, the upper fixture With the lower fixture to timing, the magnetic pole of the left electromagnet, the middle permanent magnet and the right electromagnet is in vertical direction On.

Further, the bottom of the lower fixture is additionally provided with magnetic isolation plate.

Further, the upper pressure-driven mechanism and the pushing power drive mechanism are hydraulic cylinder.

Further, the support column being connected with the upper spider is provided on the lower bearing bracket.

The utility model has the beneficial effects that：Due to the utility model use complex vibration design, including upper spider, under Rack, upper pressure-driven mechanism, pushing power drive mechanism, upper fixture and lower fixture, the upper spider are located at the lower bearing bracket The upper end of top, the upper pressure-driven mechanism is hinged with the upper spider, the lower end of the upper pressure-driven mechanism and institute It states fixture to be connected, the pushing power drive mechanism lower end is hinged with the lower bearing bracket, on the pushing power drive mechanism End is connected with the lower fixture, when welding, the upper pressure-driven mechanism and described pushes power drive mechanism output in opposite directions Active force；A kind of compound Linear fiction welding device further includes mechanical vibrator and electromagnetic oscillation device, the machine Tool vibration device is connect with the upper fixture or the upper pressure-driven mechanism driving, the electromagnetic oscillation device and the lower card Tool or the pushing power drive mechanism are connected, the direction of vibration that the mechanical vibrator and the electromagnetic oscillation device generate It is vertical with the upper pressure-driven mechanism or the force direction for pushing power drive mechanism output, so, this is practical new Type structure is simple, easy to operate, and weight of equipment is light, can be at low cost by building strengthening, high-efficient, and previous linear Friction-welding machine reciprocating mechanism is compared, and using compound vibrating device, vibration frequency, vibration force can be dynamic according to welding situation State is adjusted, energy saving, overcomes the influence of vibrating inertia force welding quality, is reduced overlap quantity, is met unlike material weldment Requirement to vibration frequency.

Detailed description of the invention

Fig. 1 is the principles of the present invention structural schematic diagram；

Fig. 2 is the local figure structure schematic representation of the overlook direction of the utility model.

Specific embodiment

As depicted in figs. 1 and 2, in the present embodiment, the utility model includes upper spider 1, lower bearing bracket 2, upper pressure-driven Mechanism 3 pushes power drive mechanism 4, upper fixture 5 and lower fixture 6, and the upper spider 1 is located at the top of the lower bearing bracket 2, described The upper end of upper pressure-driven mechanism 3 is hinged with the upper spider 1, the lower end of the upper pressure-driven mechanism 3 and the upper card Tool 5 is connected, and 4 lower end of pushing power drive mechanism is hinged with the lower bearing bracket 2,4 upper end of pushing power drive mechanism It is connected with the lower fixture 6, when welding, the upper pressure-driven mechanism 3 and the pushing power drive mechanism 4 export opposite Active force；A kind of compound Linear fiction welding device further includes mechanical vibrator 7 and electromagnetic oscillation device 8, described Mechanical vibrator 7 and the upper fixture 5 or the upper pressure-driven mechanism 3 are sequentially connected, the electromagnetic oscillation device 8 and institute It states lower fixture 6 or the pushing power drive mechanism 4 is connected, the mechanical vibrator 7 and the electromagnetic oscillation device 8 generate Direction of vibration with the upper pressure-driven mechanism 3 or it is described push power drive mechanism 4 export force direction it is vertical.Institute It states mechanical vibrator 7 and the electromagnetic oscillation device 8 can be with stage sex work, it also can reverse operation, vibration force and vibration simultaneously Dynamic frequency is adjustable.

In the present embodiment, a kind of compound Linear fiction welding device further includes side stand 9, the side stand 9 Side sliding be provided with slide 10, the slidable adjustment device being connected with the slide 10 is provided on the lower bearing bracket 2 11, the mechanical vibrator 7 is arranged on the slide 10.The mechanical vibrator 7 and the electromagnetic oscillation device 8 Driving force is parallel or is overlapped, and 7 height of mechanical vibrator is adjustable, while realizing the adjusting of amplitude.

In the present embodiment, the mechanical vibrator 7 includes driving motor 71, support 72, driving wheel 73, driven wheel 74, transmission belt 75, crank 76 and connecting rod 77, the driving motor 71 and the support 72 are arranged on the slide 10, institute It states driving motor 71 and the driving wheel 73 is sequentially connected, the driven wheel 74 passes through the transmission belt 75 and the driving wheel 73 The rotation center of transmission connection, the centre rotational axis of the crank 76 and the driven wheel 74 is sequentially connected, the connecting rod 77 One end and the eccentric shaft of the crank 76 are hinged, and the support 72 supports the centre rotational axis of the crank 76.

In the present embodiment, brake 12 is provided on the centre rotational axis of the crank 76.

In the present embodiment, the slidable adjustment device 11 includes the adjusting screw rod 111 being threadedly coupled with the slide 10 And the adjusting motor 112 being sequentially connected with the adjusting screw rod 111.

In the present embodiment, the electromagnetic oscillation device 8 includes left electromagnet 13, middle permanent magnet 14 and right electromagnet 15, The left electromagnet 13 and the right electromagnet 15 be symmetricly set on it is described push power drive mechanism 4 left and right both sides, it is described in The middle part for pushing power drive mechanism 4 is arranged in permanent magnet 14 or the middle permanent magnet 14 is symmetrically distributed in the lower pressure The periphery of driving mechanism 4, the upper fixture 5 and the lower fixture 6 are to timing, the left electromagnet 13, the middle permanent magnet 14 In the vertical direction with the magnetic pole of the right electromagnet 15.The left electromagnet 13, the middle permanent magnet 14 and the right electricity The design of magnet 15 is heteropolar attracting using electromagnet, and homopolar-repulsion principle, driving force and brake force are respectively attraction and repulsion Power, the combination of two power.

In the present embodiment, the bottom of the lower fixture 6 is additionally provided with magnetic isolation plate 16, and the magnetic isolation plate 16 is conducive to electricity Electromagnetism conducting between magnet, be conducive to improve the left electromagnet 13, the middle permanent magnet 14 and the right electromagnet 15 it Between active force.

In the present embodiment, the upper pressure-driven mechanism 3 and the pushing power drive mechanism 4 are hydraulic cylinder.

In the present embodiment, the support column 17 being connected with the upper spider 1 is provided on the lower bearing bracket 2.

In the present embodiment, the rack of the utility model includes the upper spider 1, the lower bearing bracket 2, the side stand 9 With the support column 17, the rack using putting open frame design, rack can in conjunction with civil engineering, the side stand 9, it is described on Rack 1, the support column 17 can in conjunction with civil engineering, 7 position of mechanical vibrator can whole up and down adjustment, Welder Part size, shape be not by equipment limit.The vibration force and frequency of the utility model are adjustable simultaneously, in the not same order of welding Section, unlike material have different vibration force and vibration frequency, and frequency adjustable extent is wide, overcomes existing linear friction welding and sets Standby deficiency.Realize that vibration force and vibration frequency are dynamically adapted in linear friction termination process.

The characteristics of the utility model can be according to linear friction welding, usual weldment are moved back and forth under biggish pressure and are rubbed It wipes, generates a large amount of heat, weldment is brought rapidly up and softens.It at welding initial stage, is welded using mechanical low frequency, plays mechanical vibration The big feature of power；After metal softening, vibration force needed for weldment declines to a great extent, and is switched to electric and magnetic oscillation mode, realizes high Frequency vibration welding.Different according to the size of workpiece, material simultaneously, unicity may be selected, and mechanically or electrically magnetic mode is welded, also optional Select compound sexual stage welding and reversed welding etc. simultaneously.

The working principle of the utility model compounded linear friction welding：Erecting and welding workpiece, according to the size adjusting of weldment The height of the driving motor 71 and the upper fixture 5 and the lower fixture 6, the electromagnetic oscillation device 8 is fixed and positions institute State lower fixture 6.Workpiece is installed, inputs the relevant parameter of welding, for welding workpiece to just, driving motor 71 passes through the driven wheel 74 The connecting rod 77 is driven to drive welding workpiece linear reciprocating motion, twice of the eccentricity of the crank 76 i.e. workpiece motion s row Journey.Vertical two hydraulic cylinders up and down increase pressure, generate frictional heat, and the heating of welding workpiece welding section softens, under the resistance of motion Drop automatically cuts off mechanical vibration power supply, and brake apparatus work, which is realized, brakes and position the upper fixture 5, while starting the electricity Magnetic vibration device 8 continues to rub under high vibration frequency condition, and visco-plasticity movement occurs for welding section metal, reaches setting ginseng Number cuts off electric and magnetic oscillation power supply, to positive workpiece, applies upsetting force and completes welding.

The utility model specific embodiment is as follows：

Scheme one：Mechanical Driven linear friction welding.The driving motor 71 is adjustable by controller frequency, described in starting Driving motor 71, the connecting rod 77 drive the upper fixture 5 and the lower fixture 6 that upper workpiece is driven to move repeatedly, and upper and lower two Hydraulic cylinder applies friction pressure, meets welding condition, and centering hydraulic cylinder simultaneously applies upsetting force, completes welding.

Scheme two：Electromagnetic drive linear friction welding.The lower fixture 6 is driven using the mutually exclusive principle of homopolarity, it is described The polarity of the magnetic pole and the intermediate permanent magnet 14 of left electromagnet 13 and right electromagnet 15 is identical, mutually exclusive, makes the centre Permanent magnet 14 is in equilibrium state, and when electromagnetism Tie Tong high-frequency electrical, the voltage of the left electromagnet 13 and the right electromagnet 15 is logical Control device is crossed, realizes that peak value is alternately present, left 13 voltage peak of electromagnet generates repulsive force, the right electromagnet 15 Voltage is zero, and the intermediate permanent magnet 14 moves right, reach capacity position when stress balance, movement velocity zero, similarly, institute Right 15 voltage peak of electromagnet is stated, left 13 voltage of electromagnet is zero, and the intermediate permanent magnet 14 is moved to the left, so anti- Multiple movement drives the lower fixture 6 to generate high-frequency reciprocating movement, to reach the technique requirement of linear friction welding；Hydraulic cylinder Apply friction pressure, meet welding condition, centering hydraulic cylinder simultaneously applies upsetting force, completes welding.

Scheme three：Composite drive friction welding.The driving motor 71 is adjustable by controller frequency, starts the driving Motor 71, the connecting rod 77 drive the upper fixture 5 and the lower fixture 6 that upper workpiece is driven to move repeatedly, and upper and lower two hydraulic Cylinder applies friction pressure.The heating of welding workpiece welding section, softening, resistance of motion decline automatically cut off mechanical vibration power supply, braking Device work, which is realized, brakes and positions fixture, while starting electromagnetic oscillation device, drives institute using the mutually exclusive principle of homopolarity Lower fixture 6 is stated, the polarity of the magnetic pole and the intermediate permanent magnet 14 of the left electromagnet 13 and right electromagnet 15 is identical, arranges mutually Reprimand, makes the intermediate permanent magnet 14 be in equilibrium state, when electromagnetism Tie Tong high-frequency electrical, the left electromagnet 13 and the right electromagnetism The voltage of iron 15 realizes that peak value is alternately present by control device, and left 13 voltage peak of electromagnet generates repulsive force, institute Stating right 15 voltage of electromagnet is zero, and the intermediate permanent magnet 14 moves right, reach capacity position when stress balance, movement velocity It is zero, similarly, right 15 voltage peak of electromagnet, left 13 voltage of electromagnet is zero, and the intermediate permanent magnet 14 is to the left It is mobile, it moves repeatedly, drives the lower fixture 6 to generate high-frequency reciprocating movement, to reach the technique of linear friction welding It is required that；Hydraulic cylinder applies friction pressure, meets welding condition, and centering hydraulic cylinder simultaneously applies upsetting force, completes welding.

The utility model is applied to the technical field of linear friction welding.

Although the embodiments of the present invention are described with practical solution, does not constitute the utility model is contained Justice limitation, for those skilled in the art, according to this specification to the modification of its embodiment and with the group of other schemes Conjunction will be apparent from.

Claims (9)

1. a kind of compound Linear fiction welding device, it is characterised in that：A kind of compound Linear fiction welding device packet It includes upper spider (1), lower bearing bracket (2), upper pressure-driven mechanism (3), push power drive mechanism (4), upper fixture (5) and lower fixture (6), the upper spider (1) is located at the top of the lower bearing bracket (2), the upper end of the upper pressure-driven mechanism (3) and it is described on Rack (1) is hinged, and the lower end of the upper pressure-driven mechanism (3) is connected with the upper fixture (5), the lower pressure-driven Mechanism (4) lower end is hinged with the lower bearing bracket (2), and the pushing power drive mechanism (4) upper end is connected with the lower fixture (6) It connects, when welding, the upper pressure-driven mechanism (3) and described push power drive mechanism (4) export opposite active force；Described one The compound Linear fiction welding device of kind further includes mechanical vibrator (7) and electromagnetic oscillation device (8), the mechanical oscillation dress Set (7) and the upper fixture (5) or the upper pressure-driven mechanism (3) be sequentially connected, the electromagnetic oscillation device (8) with it is described Lower fixture (6) or the pushing power drive mechanism (4) are connected, the mechanical vibrator (7) and the electromagnetic oscillation device (8) active force of the direction of vibration generated with the upper pressure-driven mechanism (3) or pushing power drive mechanism (4) output Direction is vertical.

2. a kind of compound Linear fiction welding device according to claim 1, it is characterised in that：Described one kind is compound Linear fiction welding device further includes side stand (9), and the side sliding of the side stand (9) is provided with slide (10), under described The slidable adjustment device (11) being connected with the slide (10), mechanical vibrator (7) setting are provided in rack (2) On the slide (10).

3. a kind of compound Linear fiction welding device according to claim 2, it is characterised in that：The mechanical oscillation dress (7) are set to include driving motor (71), support (72), driving wheel (73), driven wheel (74), transmission belt (75), crank (76) and connect Bar (77), the driving motor (71) and the support (72) are arranged on the slide (10), the driving motor (71) It is sequentially connected with the driving wheel (73), the driven wheel (74) is driven by the transmission belt (75) and the driving wheel (73) Connection, the centre rotational axis of the crank (76) and the rotation center of the driven wheel (74) are sequentially connected, the connecting rod (77) One end and the eccentric shaft of the crank (76) be hinged, the support (72) supports the center rotation of the crank (76) Axis.

4. a kind of compound Linear fiction welding device according to claim 3, it is characterised in that：The crank (76) Brake (12) are provided on centre rotational axis.

5. a kind of compound Linear fiction welding device according to claim 2, it is characterised in that：The slidable adjustment dress (11) are set to include the adjusting screw rod (111) being threadedly coupled with the slide (10) and be sequentially connected with the adjusting screw rod (111) Adjusting motor (112).

6. a kind of compound Linear fiction welding device according to claim 1, it is characterised in that：The electric and magnetic oscillation dress Setting (8) includes left electromagnet (13), middle permanent magnet (14) and right electromagnet (15), the left electromagnet (13) and the right electromagnetism Iron (15) is symmetricly set on the left and right both sides for pushing power drive mechanism (4), and the middle permanent magnet (14) is arranged under described The middle part of pressure-driven mechanism (4) or the middle permanent magnet (14) are symmetrically distributed in the outer of pushing power drive mechanism (4) It encloses, the upper fixture (5) and the lower fixture (6) are to timing, the left electromagnet (13), the middle permanent magnet (14) and described The magnetic pole of right electromagnet (15) is in the vertical direction.

7. a kind of compound Linear fiction welding device according to claim 6, it is characterised in that：The lower fixture (6) Bottom be additionally provided with magnetic isolation plate (16).

8. a kind of compound Linear fiction welding device according to claim 1, it is characterised in that：The upper pressure-driven Mechanism (3) and the pushing power drive mechanism (4) are hydraulic cylinder.

9. a kind of compound Linear fiction welding device according to claim 1, it is characterised in that：The lower bearing bracket (2) On be provided with the support column (17) being connected with the upper spider (1).