Main mould swinging type high-velocity cold headers
Technical field
The present invention relates to cold headers technical field.
Background technology
Cold headers take pier as the main special equipment being used for producing in batches the securing member such as nut, bolt specially.Theoretical according to metal flow, at normal temperatures certain pressure is applied to metal stock, make it to produce flow in die cavity, shaping by the shape and size of regulation.
The primary structure of cold headers is: include fuselage, fuselage is provided with power set, wire rod feed arrangement, cuts off feeder, pier and beat device, discharging device, power set include drive motors, the output of drive motors connects bent axle after gearbox, bent axle has been connected countershaft, and other devices are connected on bent axle or countershaft through corresponding transmission mechanism; Wire rod feed arrangement is used for wire rod traction transfer and completes comparatively straight simultaneously, has generally included more straight mechanism and haulage gear; Cut off feeder for wire rod is sheared discharging section and be transplanted on corresponding upsetting manual labour position is carried out shaping; By discharging device discharging after shaping; Upsetting is beaten device and is included two punch dies and main mould; two punch dies are arranged on the elevating bracket of drift inversion mechanism; the elevating bracket of drift inversion mechanism is arranged on punch die slide; punch die slide is connected on the bent axle of power set through connecting rod; such bent axle drives punch die slide through connecting rod, drives the punch die action on punch die slide.Existing cold headers structure Problems existing is: their main mould is all be fixed on fuselage, and the transposition of inter process relies on drift inversion mechanism and clamping mechanism to realize.When such drift coordinates with main mould, need execution two actions-rush switching action between upsetting forming action and station, there is equipment precision difference, poor work stability, die life is short, and the inferior defect of inefficiency.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide the main mould revolution of a kind of employing to realize switching action between station, compact conformation, production stability is good, the main mould swinging type high-velocity cold headers that machining accuracy is high and operating efficiency is high.
For achieving the above object, the invention provides following technical scheme: a kind of main mould swinging type high-velocity cold headers, include fuselage, be arranged on the power set on fuselage, wire rod feed arrangement, cut off feeder, pier beats device and discharging device, pier is beaten device and is included main mould, at least two punch dies and punch die slide, punch die is arranged on punch die slide, punch die slide is slidably fitted on fuselage, it is characterized in that: described upsetting is beaten device and also included main mould slew gear, main mould slew gear comprises the main die holder of swinging, main die holder is assemblied on fuselage rotatable, main die holder is provided with successively and each punch die some upsetting manual labour positions one to one, and the material returned station corresponding with discharging device position, material returned station and each upsetting manual labour position are distributed on circumferentially same, on each station of main die holder, correspondence is provided with a main mould respectively, described main die holder is connected with the intermittent dividing device driving its intermittent rotary to realize main mould Switch of working position, each punch die location and installation is with corresponding cold-heading station position corresponding on punch die slide.
Cold headers of the present invention; main die holder drives intermittent rotary through intermittent dividing device; realize main mould to switch successively at each station; after punch die is corresponding with corresponding cold-heading station, location and installation is at punch die slide; there is compact conformation; good operating stability, production stability is good, the advantage that machining accuracy is high and operating efficiency is high.
The present invention is set to further: described intermittent dividing device includes intermittent rotary gear and driving wheel, described intermittent rotary gear is arranged on main die holder, main die holder is conflicted and is combined with damper assembly, described driving wheel is assemblied on fuselage through bolster in revolving to be rotatably assorted, driving wheel outer circumference surface is provided with the arc-shaped rack engaged with described intermittent rotary gear interval, arc-shaped rack extends along driving wheel direction of rotation, the length of arc-shaped rack and the switching of described main mould between adjacent stations are apart from suitable, described driving wheel is connected with the power input mechanism driving it to rotate.
Adopt above-mentioned further vibrational power flow, on driving wheel when arc-shaped rack and intermittent rotary gears meshing, intermittent gear turns an angle, main die holder is driven to turn an angle, realize main mould Switch of working position, when on driving wheel, arc-shaped rack throws off intermittent rotary gear, main die holder stops operating, under damper assembly effect, main die holder realizes the locking of position; Thus the Switch of working position realizing main mould drives, have compact conformation, the reliable advantage of having stable behavior, damper assembly not only realizes main die holder locking position, avoids main die holder rotation process simultaneously, because shaking phenomenon appears in inertia, ensures that main die holder slow-roll stabilization is reliable.
The present invention is set to further again: described power input mechanism connects the countershaft of driving wheel and power set, power input mechanism includes driving bevel gear, driven bevel pinion, first universal driving shaft, universal drive shaft and the second universal driving shaft, driving bevel gear is arranged on the countershaft of power set, driven bevel pinion is arranged on the first universal driving shaft, driving bevel gear and driven bevel pinion engagement fit, first universal driving shaft is connected with universal drive shaft, universal drive shaft is connected with the second universal driving shaft relative to the other end being connected one end with the first universal driving shaft, described second universal driving shaft is provided with the first travelling gear, first travelling gear engagement fit has the second travelling gear, first travelling gear and described driving wheel are coaxially connected.
Adopt above-mentioned further vibrational power flow again, the countershaft of power set is through driving bevel gear and driven bevel pinion, and drive the first universal driving shaft to rotate, the first universal driving shaft rotates through cardan shaft driving second universal driving shaft, second universal driving shaft is through the first travelling gear and the second travelling gear, and the final driving wheel that drives rotates; This power input mechanism, realizes the change in power transmission direction, has compact conformation, and mounting arrangements is convenient, and stable transmission is reliable, and realizes being connected with power set on cold headers, without the need to other setting, makes collaborative work reliable.
The present invention is set to further again: the wheel disc of described second travelling gear is provided with some arc strip holes extending along direction of rotation and arrange, described driving wheel and bolster revolve and are rotatably assorted, the wheel disc of driving wheel is provided with screw hole, the screw hole internal thread rotation of driving wheel is equipped with lock-screw, and the second travelling gear to lock position-adjustable on the drive wheel through lock-screw.
By adopting above-mentioned further vibrational power flow again, unscrew lock-screw, when realizing the rotation pair to main die holder, the punch die coordinated reaching main die holder and switching time and cold headers is reliable, the reliability of raising work, has convenient and reliable assembly, and debugs advantage easily.
The present invention is set to further again: described damper assembly includes the first damping sleeve pipe, second damping sleeve pipe, connecting bolt and tensioner spring, described first damping sleeve pipe and the coaxial interval of the second damping sleeve pipe are arranged, first damping sleeve pipe and the second damping sleeve pipe activity are assemblied on fuselage and can slide axially along it, the end that first damping sleeve pipe is relative with the second damping sleeve pipe is equipped with scarf, the scarf of the first damping sleeve pipe and the scarf of the second damping sleeve pipe are all adaptive conflicts on main die holder sidewall, screw rod one end of described connecting bolt is passed the first damping sleeve pipe and is fixedly connected on the second damping sleeve pipe, first damping sleeve pipe and tensioner spring movable set are on connecting bolt, tensioner spring is positioned at the first damping sleeve pipe away from second damping sleeve pipe one end, tensioner spring one end is connected to the first damping sleeve tube end, the tensioner spring other end is connected to the head of connecting bolt.
Under adopting above-mentioned further vibrational power flow again, tensioner spring push first damping sleeve pipe presses on main die holder, tensioner spring push connecting bolt, connecting bolt pulls the second damping sleeve pipe to press to main die holder, thus realizes the first damping sleeve pipe and the second damping sleeve tube grip on main die holder, adopts scarf contact simultaneously, contact area is large, contact is reliable, has reliable operation, the advantage of long service life.
The present invention is set to further again: described second damping sleeve pipe is provided with screwed hole, and described connecting bolt screw thread is screwed in the screwed hole of the second damping sleeve pipe.
Under adopting above-mentioned further vibrational power flow again, screw in, screw out connecting bolt, realize regulating the decrement of tensioner spring, thus realize the adjustment of damping force, easy to use and reliable operation.
The present invention is set to further: described fuselage is detachably provided with mounting flange, and described main die holder is assemblied in the vestibule of mounting flange, and main die holder and mounting flange revolve and be rotatably assorted, and the knife edge die of described cut-out feeder is arranged on mounting flange.
Adopt said structure to arrange down, facilitate installation and the position corresponding matching of main die holder and knife edge die, assemble more reliable.
The present invention is set to further: described discharging device includes butt passive rocking arm, butt connecting rod and eccentric wheel, described butt passive rocking arm is hingedly mounted on fuselage, butt passive rocking arm is divided into top link and lower swing arm through pin joint, the top link of butt passive rocking arm is provided with discharging push rod, discharging push rod is corresponding with material returned station position, described eccentric wheel bias is arranged on the countershaft of power set, butt connecting rod one end is arranged on eccentric wheel, butt connecting rod and eccentric wheel revolve and are rotatably assorted, the butt connecting rod other end is articulated and connected on the lower swing arm of butt passive rocking arm.
Said structure is adopted to arrange down, the countershaft of power set rotates, eccentric wheel rotates thereupon, butt passive rocking arm is driven to swing through butt connecting rod, the top link top discharge push rod action of butt passive rocking arm, when cutting material returned station after the material forming on main mould, discharging push rod clashes into the guide rod on corresponding main mould, realize the material in master cast chamber to release, complete discharging; There is compact conformation, smooth running, reliable operation, and the advantage that noise is low.
The present invention is set to further: described butt rod hinge connection is connected with torque arm length adjustment seat, the lower swing arm of butt passive rocking arm is provided with the bar shaped installing hole extended along its length, described torque arm length adjustment seat to be assemblied in bar shaped installing hole slidably, torque arm length adjustment seat threaded engagement has adjusting screw(rod), adjusting screw(rod) is arranged along bar shaped installing hole length, and the lower swing arm of adjusting screw(rod) and butt passive rocking arm revolves and is rotatably assorted.
Said structure is adopted to arrange down, adjusting screw(rod) rotates, realizable force arm lengths adjustment seat have been slided position adjustments along bar shaped installing hole, namely the force position adjustments that butt connecting rod drives butt passive rocking arm is realized, realize regulating butt passive rocking arm amplitude of fluctuation, thus realize the material material returned being suitable for different length specification, use more convenient, equipment use is more reliable and versatility is stronger, and adjustment operation is simple and convenient.
Below in conjunction with attached
figurethe invention will be further described.
Accompanying drawing explanation
figure1 is the structural representations of the specific embodiment of the invention main mould swinging type high-velocity cold headers
figureone;
figure2 are
figure1A part partial enlargement is looked
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figure3 is the structural representations of the specific embodiment of the invention main mould swinging type high-velocity cold headers
figuretwo;
figure4 is the structural representation of the specific embodiment of the invention main mould slew gear
figure;
figure5 is the main die holder of the specific embodiment of the invention and the signal of damper assembly fit structure
figure;
figure6 is that specific embodiment of the invention driving wheel and the second travelling gear fit structure are illustrated
figure;
figure7 is the structural representation of specific embodiment of the invention drawing mechanism
figure;
figure8 is the structural representation of specific embodiment of the invention butt passive rocking arm
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Detailed description of the invention
As
figure1 ~
figureshown in 8, one disclosed by the invention main mould swinging type high-velocity cold headers, include fuselage 1, and installation power set 2 on the fuselage 1, wire rod feed arrangement 3, cut-out feeder 4, pier beat device 5 and discharging device 6; Wherein power set 2 include drive motors 21, gearbox 22, bent axle 23 and countershaft 24, and drive motors 21 output is connected with gearbox 22, the output of gearbox 22 through belt wheel, driving-belt (
figurein not shown) drive and connect bent axle 23, bent axle 23 to be in transmission connection countershaft 24 through gear pair; Described pier is beaten device 5 and is included main mould 51, at least two punch dies 52 and punch die slide 53, and punch die 52 is arranged on punch die slide 53, and punch die slide 53 is slidably matched on the fuselage 1.Described upsetting is beaten device 5 and is also included main mould slew gear, main mould slew gear comprises the main die holder 54 of swinging, main die holder 54 assembles rotatable on the fuselage 1, main die holder 54 is provided with successively and each punch die 52 some upsetting manual labour positions I, II one to one, and the material returned station III corresponding with discharging device 6 position; Material returned station III and each upsetting manual labour position I, II are distributed on circumferentially same; On each station of main die holder 54, correspondence is provided with a main mould 51 respectively; described main die holder 54 is connected with and drives its intermittent rotary to realize the intermittent dividing device of main mould 51 Switch of working position, and each punch die 52 location and installation is corresponding with corresponding cold-heading station I, II position on punch die slide 53.In this specific embodiment, cold headers are that three moulds two rush cold headers, main mould adopts three designs, the punch die coordinated with main mould has two (first upsetting punch die and smart upsetting punch dies), rush cold headers with a traditional mould two and complete identical processing, but its each station is arranged respectively on main die holder, the rotation through main die holder realizes main mould and switches in turn between each station, can greatly enhance productivity; Between each station, position switches more reliable and more stable simultaneously, and precision is higher, and compact conformation.Certainly, under installing space allows, the design of more than three main moulds equally also can be employed.
Described intermittent dividing device includes intermittent rotary gear 551 and driving wheel 552, described intermittent rotary gear 551 is arranged on main die holder 54, main die holder 54 is conflicted and is combined with damper assembly, described driving wheel 552 is rotatably assorted assembling on the fuselage 1 through bolster 553 in revolving, driving wheel 552 outer circumference surface is provided with the arc-shaped rack 5521 engaged with described intermittent rotary gear 551 interval, arc-shaped rack 5521 extends along driving wheel 552 direction of rotation, the length of arc-shaped rack 5521 and the switching of described main mould 51 between adjacent stations are apart from suitable, described driving wheel 552 is connected with the power input mechanism driving it to rotate.When arc-shaped rack 5521 engages with intermittent rotary gear 551 on driving wheel 552, drive intermittent gear 551 to turn an angle, drive main die holder 54 to turn an angle, realize main mould 51 Switch of working position; When on driving wheel 552, arc-shaped rack 5521 throws off intermittent rotary gear 551, main die holder 54 stops operating, and under damper assembly effect, main die holder 54 realizes the locking of position; Have structure simple, it is convenient to realize, and the advantage that Switch of working position is reliable and stable; And adopting damper assembly to realize the locking position of main die holder, the operation process that damper assembly also can realize main die holder is reliable and stable, but also facilitates the mounting and adjusting of main die holder, realizes easily.Intermittent dividing device effect be realize drive main intermode have a rest (by certain hour interval) turn an angle, certainly as the scheme that the present invention is feasible, intermittent dividing device can also adopt other structural design, realize as adopted Geneva mechanism, driving stepper motor etc. with reducing gear (can realize if any other, but the mechanism of weak effect also can supplement, to better meet support issue), but adopt other mechanism to there is the problem of design inconvenience and poor stability, therefore the present invention preferentially adopt the structural design in this specific embodiment.
In this specific embodiment, described power input mechanism connects the countershaft 24 of driving wheel 552 and power set 2, power input mechanism includes driving bevel gear 561, driven bevel pinion 562, first universal driving shaft 563, universal drive shaft 564 and the second universal driving shaft 565, driving bevel gear 561 is arranged on the countershaft 24 of power set 2, driven bevel pinion 562 is arranged on the first universal driving shaft 563, driving bevel gear 561 and driven bevel pinion 562 engagement fit, first universal driving shaft 563 is connected with universal drive shaft 564, universal drive shaft 564 is connected with the second universal driving shaft 565 relative to the other end being connected one end with the first universal driving shaft 563, described second universal driving shaft 565 is provided with the first travelling gear 566, first travelling gear 566 engagement fit has the second travelling gear 567, first travelling gear 566 is coaxially connected with described driving wheel 552.Certainly as the scheme that the present invention is feasible, power input mechanism can adopt common gear mechanism, and sets up separately power set to realize, cause mounting arrangements inconvenience like this, mechanism is complicated, meanwhile, and the problem of the co-operating poor reliability of main mould and punch die and other devices.
The wheel disc of described second travelling gear 567 is provided with some arc strip holes 5671 extending along direction of rotation and arrange, described driving wheel 552 revolves with bolster 553 and is rotatably assorted, the wheel disc of driving wheel 552 is provided with screw hole 5522, screw hole 5522 internal thread rotation of driving wheel 552 be equipped with lock-screw (
figurein not shown), the second travelling gear 567 through lock-screw locking on driving wheel 552 position-adjustable.Convenient regulates when to carry out with other devices pair, reliably, the reliability of raising work, has convenient and reliable assembly, and debugs advantage easily the punch die coordinated of the switching time reaching main die holder and cold headers.
Described damper assembly includes the first damping sleeve pipe 571, second damping sleeve pipe 572, connecting bolt 573 and tensioner spring 574, described first damping sleeve pipe 571 and the coaxial interval of the second damping sleeve pipe 572 are arranged, first damping sleeve pipe 571 and the second damping sleeve pipe 572 activity assembling on the fuselage 1 can along its (the first damping sleeve pipes 571, second damping sleeve pipe 572) slide axially, the end that first damping sleeve pipe 571 is relative with the second damping sleeve pipe 572 is equipped with scarf 5711, 5712, the scarf 5711 of the first damping sleeve pipe 571 and the scarf 5721 of the second damping sleeve pipe 572 are all adaptive conflicts on main die holder 54 sidewall, screw rod one end of described connecting bolt 573 is passed the first damping sleeve pipe 571 and is fixedly connected on the second damping sleeve pipe 572, first damping sleeve pipe 571 and tensioner spring 574 movable set are on connecting bolt 573, tensioner spring 574 is positioned at the first damping sleeve pipe 571 away from second damping sleeve pipe 572 one end, tensioner spring 574 one end is connected to the first damping sleeve pipe 571 end, tensioner spring 574 other end is connected to the head of connecting bolt 573.Under tensioner spring action, pushing tow first damping sleeve pipe 571 presses on main die holder 54, tensioner spring 574 pushing tow connecting bolt 573, and connecting bolt 573 pulls the second damping sleeve pipe 572 to press to main die holder 54, thus realize the first damping sleeve pipe 571 and the second damping sleeve pipe 572 is clamped on main die holder 54, contact is reliable, reliable operation, adopts scarf contact simultaneously, contact area is large, contact is reliable, has reliable operation, the advantage of long service life.
Wherein, described second damping sleeve pipe 572 is provided with screwed hole, and described connecting bolt 573 screw thread is screwed in the screwed hole of the second damping sleeve pipe 572.Like this, can screw in, screw out connecting bolt, realize regulating the decrement of tensioner spring, thus realize the adjustment of damping force, easy to use and reach reliable operation.
For convenience of the installation of main die holder, described fuselage 1 is detachably provided with mounting flange 58; In this specific embodiment, be provided with assembling vestibule on the fuselage 1, in assembling vestibule, through bolt, mounting flange 58 be detachably installed; Described main die holder 54 is assemblied in the vestibule of mounting flange 58, and main die holder 54 revolves with mounting flange 58 and is rotatably assorted, and the knife edge die 41 of described cut-out feeder 4 is arranged on mounting flange 58; Cylinder thrust bearing 581 between main die holder 54 and assembling chamber bottom, cylinder thrust bearing 581 can bear heavy load and oscillating load without difficulty, ensures that the working stability of main die holder is reliable.
In this specific embodiment, as
figure7 Hes
figureshown in 8, described discharging device 6 includes butt passive rocking arm 61, butt connecting rod 62 and eccentric wheel 63, described butt passive rocking arm 61 is hingedly mounted on fuselage 1, butt passive rocking arm 61 warp beam and bearing are installed on the fuselage 1, butt passive rocking arm 61 is divided into top link 611 and lower swing arm 612 through pin joint, the top link 611 of butt passive rocking arm 61 is provided with discharging push rod 64, discharging push rod 64 is corresponding with material returned station position III, described eccentric wheel 63 bias is arranged on the countershaft 24 of power set 2, butt connecting rod 62 one end is arranged on eccentric wheel 63, butt connecting rod 62 and eccentric wheel 63 revolve and are rotatably assorted, through bearing assemble between butt connecting rod 62 and eccentric wheel 63, butt connecting rod 62 other end is articulated and connected on the lower swing arm 612 of butt passive rocking arm 61.Wherein, described butt connecting rod 62 is hingedly connected with torque arm length adjustment seat 65, the lower swing arm 612 of butt passive rocking arm 61 is provided with the bar shaped installing hole 613 extended along its length, torque arm length adjustment seat 65 comprises pedestal and locking cover plate, pedestal is inserted in bar shaped installing hole 613, pedestal and locking cover plate are held on butt passive rocking arm 61 through bolt clip, thus, form described torque arm length adjustment seat 65 and be slidably fitted in bar shaped installing hole 613.Torque arm length adjustment seat 65 threaded engagement has adjusting screw(rod) 66, and adjusting screw(rod) 66 is arranged along bar shaped installing hole 613 length, and adjusting screw(rod) 66 revolves with the lower swing arm 612 of butt passive rocking arm 61 and is rotatably assorted.Realize regulating butt passive rocking arm amplitude of fluctuation, thus realize the material material returned being suitable for different length specification, adopt bolt and nut mechanism to realize regulating, adjustment operation is convenient and reliable.