CN207057298U - Withdrawing pattern seat and drawbench - Google Patents

Abstract

The utility model provides a kind of withdrawing pattern seat and drawbench, is related to metal drawing equipment technical field, and withdrawing pattern seat includes clamp assembly, fixed mount and the propulsion assembly and stem reducing mould being fixed on fixed mount；Clamp assembly includes relatively-stationary band claw hollow cylinder and connecting plate, the first through hole passed through for bar is provided with the deck in claw hollow cylinder, deck includes connecting portion and function part, connecting portion is affixed with hollow piston, the side wall of function part is provided with multiple second through holes, and claw is set in the second through hole；Claw reset assembly and claw are affixed；Fixed mount is provided with charging aperture, the concentric setting of necking of charging aperture, first through hole and stem reducing mould.Alleviate bar in the prior art needs first to carry out pressure head process and reduces head diameter to cause that cost is high, dangerous high and ineffective problem before undergauge process.

Description

Withdrawing pattern seat and drawbench

Technical field

Metal drawing equipment technical field is the utility model is related to, in particular to a kind of withdrawing pattern seat and drawbench.

Background technology

Drawbench is for draw ferrous and nonferrous metals bar material under normal temperature and the bar after hot rolling, extruding is carried out The machine of secondary operation, it is that production is small-bore, accurate, thin-walled, the main process apparatus of high-mechanical property bar, prior art During the specific draw steel pipe of drawbench, bar is penetrated in the endoporus of withdrawing pattern seat first, restart clamp assembly and clamp bar, then Bar is promoted by undergauge mould, until withdrawing pattern seat is stretched out in bar one end, now drawn-car clamps one end that bar stretches out, Master cylinder, which starts, starts draw.

In said process, before every time cold drawn forming, it is required to carry out pressure head process to bar, by pressure head process Bar its head sizes reduce, now stem reducing mould is released in the end of bar size reduction by the clamp assembly in withdrawing pattern seat again Outside, and cold-drawing trolley is only and play a part of to bar undergauge；At present, before pressure head process is carried out, upper a time cold-drawn is being passed through Bar afterwards, its head need to carry out local heating, when temperature reaches between 800 DEG C~900 DEG C, then carried out in forcing press The pressure head on bar head, cold-drawn is carried out after completing the temperature on bar head of pressure head and dropping to normal temperature, then to bar.Pressure head work Bar head heating before sequence needs to consume the substantial amounts of energy, and pressure head process is also required to manual hand manipulation's completion, not only Operation is dangerous high, and labor intensity is big, and overall production efficiency is low.

Utility model content

The purpose of this utility model is to provide a kind of withdrawing pattern seat and drawbench, with alleviate in the prior art bar in undergauge Need first to carry out pressure head process before process and reduce head diameter to cause that cost is high, dangerous high and ineffective problem.

The utility model provides a kind of withdrawing pattern seat, including clamp assembly, fixed mount and is fixed on the fixed mount Propulsion assembly and stem reducing mould；

The clamp assembly includes relatively-stationary band claw hollow cylinder and connecting plate, and the band claw hollow cylinder passes through institute State connecting plate to be slidably arranged on the fixed mount, the propulsion assembly can promote the clamp assembly along the fixed mount Guide rail reciprocatingly slide；

Cylinder body, hollow piston, deck, the claw being slidably connected with cylinder body for including both ends open with claw hollow cylinder And claw reset assembly, the deck are provided with the first through hole passed through for bar, the deck includes connecting portion and function part, The connecting portion and the hollow piston are affixed, and the side wall of the function part is provided with multiple second through holes, and the claw is set in In second through hole；The claw reset assembly and the claw are affixed, can make the claw towards the first through hole End face retraction described in the second through hole；

The claw can contact away from the end face of the first through hole with the inwall of the cylinder body, make multiple claws Described second can be stretched out towards the end face of the first through hole by relative movement of the hollow piston in the cylinder body Through hole simultaneously clamps the bar stretched into the first through hole；

The fixed mount is provided with charging aperture, the necking of the charging aperture, the first through hole and the stem reducing mould Concentric setting.

Further；Also include fixing nut, the connecting portion include the first hollow cylinder that end face is connected with each other and Second hollow cylinder, first hollow cylinder can pass through the hollow piston, second hollow cylinder it is straight Footpath is more than the internal diameter of the hollow piston, and less than the external diameter of the hollow piston, first hollow cylinder stretches out the sky The lateral wall of one end of plug of being indecisive and changeable is provided with external screw thread, and the fixing nut can be by being threadedly coupled with the external screw thread.

Further；The function part includes open circles stage body and ring-type fixing plate, the smaller external diameter of open circles stage body The end face of end face and second hollow cylinder away from first hollow cylinder be connected with each other, the ring-type fixing plate Second through hole is collectively constituted by the end face for being detachably secured to the larger external diameter of open circles stage body.

Further；The claw reset assembly includes back-moving spring and L-shaped bar, and the lateral wall of the open circles stage body is set There are multiple accommodating chambers, the accommodating chamber is set around the claw, and the back-moving spring is arranged in the accommodating chamber；

One end of the L-shaped bar and the claw side wall are affixed, the other end towards the accommodating chamber and with the reset bullet Spring is affixed.

Further；The stem reducing mould includes reducing die, fixed seat, for the reducing die to be fixed on into the fixation The regulating part of baffle plate and the regulation baffle plate and the fixed seat position relationship in seat；

The lateral surface of the reducing die is spherical shape, and the fixed seat is provided with the third through-hole that side is spherical shape, The reducing die is inserted into the third through-hole, and the lateral surface of the reducing die can paste with the medial surface of the fixed seat Splice grafting touches；

The baffle plate is fixed on the end face of the fixed seat, and the end face of the baffle plate and the reducing die by regulating part Fitting contact.

Further；The reducing die includes the internal model for being used for undergauge processing and the external mold for correcting internal model position；

The external mold is provided with the fourth hole that side is taper, and the one side where the fourth hole maximum diameter of hole is described External mold is towards the end face of the baffle plate；

The lateral surface of the internal model is taper, and the internal model is inserted into the fourth hole, the lateral surface of the internal model It can be contacted with the medial surface fitting of the external mold, and the internal model is bonded with the baffle plate towards the end face of the baffle plate and connect Touch.

Further；The fixed mount includes relatively-stationary first fixed plate and the second fixed plate, the propulsion assembly It is arranged on the charging aperture in first fixed plate, the stem reducing mould is arranged in second fixed plate, described to lead Rail is fixed between first fixed plate and second fixed plate；

The connecting plate has two, and the connecting plate is separately fixed in the both ends of the surface of the cylinder body, each connection Plate is provided with four fifth holes coordinated with the guide rail.

Further；The propulsion assembly is two hydraulic cylinders, and the outer shell of the hydraulic cylinder is bolted on described The outside of first fixed plate, the piston-rod end of the hydraulic cylinder close to described first through first fixed plate and with fixing The connecting plate of plate is affixed.

Further；The automatic feeding frame includes frame body, the material preparing rack for being arranged on the frame body, feeding Frame, the first conveying device, bar fixing device and the second conveying device；

The material preparing rack is set relative to ground inclination, enables bar on the material preparing rack towards the feeding frame side To slip, first conveying device includes the first conveying member and the first power unit, and first power unit can pass through Control the movement of first conveying member and will be transported near the bar of the feeding frame in feeding frame；

The bar fixing device includes fixture and the second power unit, and second power unit can control described Fixture is fixedly clamped the bar in the feeding frame；

Second conveying device includes the second conveying member and the 3rd power unit, second conveying member and the bar Fixing device is affixed, and the 3rd power unit can be by controlling feeding described in the mobile indirect control of second conveying member The feeding of inframe bar.

The utility model also provides a kind of drawbench, including automatic feeding frame and withdrawing pattern seat as described above, it is described from Dynamic stock shelf is arranged on the side that the withdrawing pattern seat is provided with first fixed plate, and the automatic feeding frame can be automatically by rod Material is pushed in the first through hole of the withdrawing pattern seat.

Relative to prior art, withdrawing pattern seat and drawbench provided by the utility model have the beneficial effect that：

Withdrawing pattern seat provided by the utility model, wherein the deck with claw hollow cylinder is fixed by connecting portion and hollow piston Connection, its function part are provided with multiple the second through holes for being used to be arranged claw, and now, function part is located fully or partially at the appearance of cylinder body Receive intracavitary, ensure that claw can contact away from the end face of first through hole with the inwall of cylinder body, and then when needing claw to clamp bar When, hollow piston moves relative to cylinder body to a direction, and also opposing cylinder moves function part therewith, and the inwall of cylinder body can squeeze Pressure claw enters first through hole, and then clamps the bar stretched into first through hole；And when needing to unclamp bar, by hollow piston Opposite direction moves, and claw has the trend departed from inboard wall of cylinder block away from the end face of first through hole, and now claw reset assembly will block Pawl is towards the end face of first through hole by the through hole of first through hole retraction second, also making claw away from the end face of first through hole and cylinder body Inwall is permanently connected to, and not only facilitates next bar to stretch into first through hole, also ensure that the high efficiency and one for clamping bar next time Cause property.

In above process, it is the extrude clamping force that is formed to bar of the inboard wall of cylinder block to claw, it is logical that claw stretches into first Hole and after clamping bar, now, cylinder body and claw can not carry out relative motion again, as propulsion assembly persistently drives towards necking Dynamic bar, inboard wall of cylinder block can be gradually increased the extruding to claw, and then claw is had bigger clamping force to bar, the clamping force It is fully able to promote the end of bar to carry out undergauge processing.

Therefore, in the utility model, bar need not carry out pressure head process again, and band claw hollow cylinder can equally provide Enough clamping forces make the end of bar carry out undergauge processing, then carry out follow-up undergauge process by cold-drawing trolley again, significantly Manpower and materials are saved, potential safety hazard caused by carrying out pressure head process to bar is avoided, further improves drawbench Operating efficiency.

Drawbench provided by the utility model, by setting automatic feeding frame and associating the sensing set on automatic feeding frame Sensor on device and withdrawing pattern seat, make whole drawbench is whole to complete all process steps such as feeding, push, undergauge, between during which only needing Every material preparing rack supplement generation processing bar, both reduce cost of labor, further improve drawbench work effect Rate.

In addition, the technical advantage of drawbench provided by the utility model is identical with the technical advantage of above-mentioned withdrawing pattern seat, Here is omitted.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the dimensional structure diagram for the withdrawing pattern seat that the utility model embodiment provides；

Fig. 2 is the structural representation with claw hollow cylinder in the withdrawing pattern seat that the utility model embodiment provides；

Fig. 3 is the structural representation of deck and spring reset component in the withdrawing pattern seat that the utility model embodiment provides；

Fig. 4 is the enlarged drawing of A in Fig. 3；

Fig. 5 is the structural representation of stem reducing mould in the withdrawing pattern seat that the utility model embodiment provides.

Icon：1- band claw hollow cylinders；2- connecting plates；3- stem reducing moulds；The fixed plates of 4- first；5- second is fixed Plate；6- hydraulic cylinders；7- guide rails；11- cylinder bodies；12- hollow pistons；13- decks；14- fixing nuts；15- claws； 16- ring-type fixing plates；17- claw reset assemblies；31- fixed seats；32- external molds；33- internal models；34- baffle plates；35- is adjusted Save part；41- charging apertures；171-L shape bars；172- back-moving springs.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Fig. 1 is the dimensional structure diagram for the withdrawing pattern seat that the utility model embodiment provides；Fig. 2 is implemented for the utility model Structural representation with claw hollow cylinder in the withdrawing pattern seat that example provides；Fig. 3 is in the withdrawing pattern seat that the utility model embodiment provides The structural representation of deck and spring reset component；Fig. 4 is the enlarged drawing of A in Fig. 3；Fig. 5 provides for the utility model embodiment Withdrawing pattern seat in stem reducing mould structural representation.

Embodiment one

As depicted in figs. 1 and 2, the utility model embodiment provides a kind of withdrawing pattern seat, including clamp assembly, fixed mount and The propulsion assembly and stem reducing mould 3 being fixed on fixed mount；Clamp assembly includes relatively-stationary band claw hollow cylinder 1 and connection Plate 2, band claw hollow cylinder 1 are slidably arranged on fixed mount by connecting plate 2, and propulsion assembly can promote clamp assembly edge fixed Guide rail 7 in frame reciprocatingly slides；It is slidably connected with cylinder body 11 of the claw hollow cylinder 1 including both ends open, with cylinder body 11 hollow Piston 12, deck 13, claw 15 and claw reset assembly 17, deck 13 are provided with the first through hole passed through for bar, deck 13 Including connecting portion and function part, connecting portion and hollow piston 12 are affixed, and the side wall of function part is provided with multiple second through holes, claw 15 It is set in the second through hole；Claw reset assembly 17 and claw 15 are affixed, and claw 15 can be made to be contracted towards the end face of first through hole Enter in the second through hole；Claw 15 can contact away from the end face of first through hole with the inwall of cylinder body 11, make multiple directions of claw 15 The end face of first through hole, which can be stretched out the second through hole and be clamped by relative movement of the hollow piston 12 in cylinder body 11, stretch into the The bar in one through hole；Fixed mount is provided with charging aperture 41, the necking of charging aperture 41, first through hole and stem reducing mould 3 Concentric setting.

The withdrawing pattern seat that the utility model embodiment provides, wherein the deck 13 with claw hollow cylinder 1 passes through connecting portion and sky Plug 12 of being indecisive and changeable is fixedly connected, and its function part is provided with multiple the second through holes for being used to be arranged claw 15, now, function part whole or portion Divide in the accommodating chamber of cylinder body 11, ensure that claw 15 can contact away from the end face of first through hole with the inwall of cylinder body 11, enter And when needing claw 15 to clamp bar, hollow piston 12 moves relative to cylinder body 11 to a direction, function part also phase therewith Cylinder body 11 is moved, the inwall of cylinder body 11 can extrude claw 15 and enter first through hole, and then clamps and stretch into first through hole Bar；And when needing to unclamp bar, the opposite direction of hollow piston 12 is moved, claw 15 has away from the end face of first through hole and cylinder The inwall of body 11 depart from trend, now claw reset assembly 17 by claw 15 towards the end face of first through hole by first through hole retraction In second through hole, claw 15 is permanently connected to away from the end face of first through hole with the inwall of cylinder body 11, not only facilitate next bar First through hole is stretched into, also ensure that the high efficiency and uniformity for clamping bar next time.

In above process, it is that the inwall of cylinder body 11 extrudes the clamping force formed to bar to claw 15, claw 15 stretches into First through hole and after clamping bar, now, cylinder body 11 and claw 15 can not carry out relative motion again, as propulsion assembly is towards contracting Footpath mouth persistently drives bar, and the inwall of cylinder body 11 can be gradually increased the extruding to claw 15, and then it is bigger claw 15 is had bar Clamping force, the clamping force be fully able to promote bar end carry out undergauge processing.

Therefore, in the utility model embodiment, bar need not carry out pressure head process again, and band claw hollow cylinder 1 is same The end that enough clamping forces, which can be provided, makes bar carries out undergauge processing, then carries out follow-up undergauge work by cold-drawing trolley again Sequence, manpower and materials are greatlyd save, avoid potential safety hazard caused by carrying out pressure head process to bar, further improve cold The operating efficiency of drawing machine.

Specifically, it is described below for the concrete structure of withdrawing pattern seat in the present embodiment：

The present embodiment also includes fixing nut 14, and connecting portion includes the first hollow cylinder and second that end face is connected with each other Hollow cylinder, the first hollow cylinder can pass through hollow piston 12, and the diameter of the second hollow cylinder is more than hollow piston 12 internal diameter, less than the external diameter of hollow piston 12, the lateral wall that the first hollow cylinder stretches out one end of hollow piston 12 is provided with External screw thread, fixing nut 14 can be by being threadedly coupled with external screw thread.

The both ends open of hollow piston 12 for the hollow cylinder that the present embodiment provides, is fixedly connected in hollow piston 12 with connecting portion Afterwards, the first through hole in connecting portion and the cavity of hollow piston 12 need concentric setting, i.e. connecting portion and the phase of hollow piston 12 To fixation, and then ensure, when bar original diameter and first through hole are smaller, bar will not occur because connecting portion is with respect to hollow piston 12 rock and can not insert first through hole.Therefore, in the present embodiment, the external diameter of the first hollow cylinder is equal to or slightly less than sky Be indecisive and changeable plug 12 internal diameter, ensure the first hollow cylinder insertion hollow piston 12 and by fixing nut 14 fix after, Liang Zheji Originally it is relatively fixed.

Further, the present embodiment sets function part to include open circles stage body and ring-type fixing plate 16, open circles stage body compared with The end face of small external diameter is connected with each other with end face of second hollow cylinder away from the first hollow cylinder, and ring-type fixing plate 16 passes through The end face for being detachably secured to the larger external diameter of open circles stage body collectively constitutes the second through hole.

Now, claw 15 is from the top of the second through hole except can take out, can also by by ring-type fixing plate 16 from sky After being removed on heart round estrade, taken out from along first through hole axis direction, now, when needing to change claw 15, without by entirely Deck 13 takes out from cylinder body 111 and removes claw 15 again, only need to dismantle ring-type fixing plate 16, convenient and swift.

It is noted that hollow cavity in hollow round table body and above-mentioned first hollow cylinder and the second hollow cylinder Hollow cavity diameter is identical and all concentric setting, collectively constitutes the first through hole of deck 13, it is preferred that cylinder body 11 is arranged open circles The section chambers of stage body are also truncated conical shape, and it is to coordinate with the inwall of cylinder body 11 to be also provided with claw 15 away from the end face of first through hole Arc, so that the end face of claw 15 is bonded with cylinder body 11, cylinder body 11 is relatively moved relative to hollow round table body and push away claw 15 When entering first through hole, evenly, both contact position friction texturizings are few for the stress of claw 15, are further ensured that both uses the longevity Life.

Further, as shown in Figure 3 and Figure 4, claw reset assembly 17 includes back-moving spring 172 and L-shaped bar 171, hollow The lateral wall of round estrade is provided with multiple accommodating chambers, and accommodating chamber is set around claw 15, and back-moving spring 172 is arranged in accommodating chamber；L One end of shape bar 171 and the side wall of claw 15 are affixed, and the other end is towards accommodating chamber and affixed with back-moving spring 172.

Back-moving spring 172 compresses stress when claw 15 is clamped to bar, and when unclamping bar, back-moving spring 172 thrust resets claw 15, and the stroke of whole process is small, and passes through multiple collective effects of back-moving spring 172, back-moving spring 172 working strength is also low, and then makes the working stability of claw reset assembly 17, and service life is longer, meets the needs of user.

Further, as shown in figure 5, the present embodiment, which also sets up stem reducing mould 3, includes reducing die, fixed seat 31, for inciting somebody to action Reducing die is fixed on the regulating part 35 of the baffle plate 34 and controllable register 34 and the position relationship of fixed seat 31 in fixed seat 31；Undergauge The lateral surface of mould is spherical shape, and fixed seat 31 is provided with the third through-hole that side is spherical shape, and reducing die is inserted into the 3rd Through hole, and the lateral surface of reducing die can contact with the medial surface fitting of fixed seat 31；Baffle plate 34 is fixed on by regulating part 35 The end face of fixed seat 31, and baffle plate 34 contacts with the end face fitting of reducing die.

Specifically, fixed seat 31 is bolted on the inner side of the second fixed plate 5, by the inner side for setting fixed seat 31 Face is spherical shape, and the lateral surface of reducing die is also spherical shape, enables lateral surface and the inner side of fixed seat 31 of reducing die Face fitting contact, and then, after reducing die insertion third through-hole, reducing die can carry out turning for certain angle relative to fixed seat 31 It is dynamic；Again by setting reducing die to protrude fixed seat 31 towards the end face of baffle plate 34 towards the end face of baffle plate 34, and baffle plate 34 is set End face fitting with reducing die towards its contacts, and ensure that reducing die can keep it with consolidating by the position that baffle plate 34 is fixed Reservation 31 is relatively fixed；And reducing die is fixed on threeway by regulating part 35 except that can connect baffle plate 34 and fixed seat 31 Outside in hole, effect of each position of the surrounding of controllable register 34 with fixed seat 31 towards the distance between its end face is also functioned to.

Baffle plate 34 is tentatively connected with fixed seat 31 specifically, regulating part 35 can be first passed through, now baffle plate 34 and the 3rd Reducing die in through hole does not contact, and reducing die can rotate relative to fixed seat 31；Bar is transported to by propulsion assembly again The necking of reducing die, and bar is passed into a reducing die part, then clamp the one of the completion of bar undergauge by cold-drawing trolley Hold and pull one end distance, it is clear that now the position of reducing die ensure that the charging aperture 41 and cold drawing dolly of necking, withdrawing pattern seat Concentric setting, then tightened baffle plate 34 and fixed seat 31 admittedly by regulating part 35 (it is regulating part 35 that the present embodiment, which sets bolt) Fixed, now, baffle plate 34 is bonded fixation with reducing die towards its end face, reducing die is relatively fixed with fixed seat 31, completes contracting The installation of footpath mould.In whole installation process, installation steps are simple and convenient, and only need to once try withdrawing pattern and can complete, and change Mould efficiency high, saves the set-up time, decreases the potential safety hazard of installation personnel during this period, meets the needs of user.

Further, the reducing die in the present embodiment includes being used for the internal model 33 of undergauge processing and for correcting internal model 33 The external mold 32 put；External mold 32 is provided with the fourth hole that side is taper, and the one side where fourth hole maximum diameter of hole is external mold 32 Towards the end face of the baffle plate 34；The lateral surface of internal model 33 is taper, and internal model 33 is inserted into fourth hole, the outside of internal model 33 Face can contact with the medial surface fitting of external mold 32, and internal model 33 contacts towards the end face of baffle plate 34 with the fitting of baffle plate 34.

The external mold 32 and internal model 33 being detachably connected by the way that reducing die is divided into, internal model 33 have been provided with the contracting of undergauge effect Footpath mouth, external mold 32 then plays a part of adjusting the axiality between necking and charging aperture 41 and cold-drawing trolley three, in undergauge Mouthful when deforming for a long time uses, internal model 33 only need to be changed, without to change again almost without the external mold 32 worn, Save use cost.

Further, as shown in figure 1, the present embodiment sets fixed mount to include relatively-stationary first fixed plate 4 and second Fixed plate 5, propulsion assembly and charging aperture 41 are arranged in the first fixed plate 4, and stem reducing mould 3 is arranged in the second fixed plate 5, is led Rail 7 is fixed between the first fixed plate 4 and the second fixed plate 5；Connecting plate 2 has two, and connecting plate 2 is separately fixed at cylinder body 11 In both ends of the surface, each connecting plate 2 is provided with four fifth holes coordinated with guide rail 7.

Specifically, the first fixed plate 4 is fixedly connected with the second fixed plate 5 by four guide rails 7, four guide rails 7 are worn respectively Four fifth holes of connecting plate 2 are crossed, to ensure that band claw hollow cylinder 1 can be along the Stable sliding of guide rail 7.

On the basis of the above, it is two hydraulic cylinders 6 to also set up propulsion assembly, and the outer shell of hydraulic cylinder 6 is bolted on The outside of first fixed plate 4, the piston-rod end of hydraulic cylinder 6 through the first fixed plate 4 and with the connection close to the first fixed plate 4 Plate 2 is affixed.

Specifically, as shown in figure 1, two hydraulic cylinders 6 are symmetrical arranged relative to charging aperture 41, two hydraulic cylinders 6 are simultaneously right The thrust of bar undergauge is provided with claw hollow cylinder 1, wherein, the stroke of hydraulic cylinder 6 need to ensure that bar can contract from ends contact The medial surface of footpath mould 3 stretches out the lateral surface one end distance of stem reducing mould 3 to end, and the part stretched out can be clamped by cold-drawing trolley It is fixed.

Embodiment two

The utility model embodiment provides a kind of drawbench, including automatic feeding frame and withdrawing pattern seat as described above, from Dynamic stock shelf is arranged on the side that withdrawing pattern seat is provided with the first fixed plate 4, and bar can be pushed to and pull out by automatic feeding frame automatically In the first through hole of die holder.

The drawbench that the utility model embodiment provides, set by setting automatic feeding frame and associating on automatic feeding frame Sensor and withdrawing pattern seat on sensor, make whole drawbench is whole to complete all process steps such as feeding, push, undergauge, during which What need to only be spaced supplements generation processing bar in material preparing rack, both reduces cost of labor, further improves drawbench Operating efficiency.

In addition, the technical advantage for the drawbench that the utility model embodiment provides and the technical advantage of above-mentioned withdrawing pattern seat Identical, here is omitted.

Further, the present embodiment also set up automatic feeding frame include frame body, be arranged on frame body material preparing rack, Feeding frame, the first conveying device, bar fixing device and the second conveying device；Material preparing rack is set relative to ground inclination, is made Bar on material preparing rack can slide towards feeding frame direction, and the first conveying device includes the first conveying member and the first power list Member, the first power unit can be by controlling the movement of the first conveying member to be transported to feeding frame near the bar of feeding frame It is interior；Bar fixing device includes fixture and the second power unit, and the second power unit can control fixture to be fixedly clamped position In the bar in feeding frame；Second conveying device includes the second conveying member and the 3rd power unit, and the second conveying member is consolidated with bar Determine that device is affixed, bar is upper in the mobile indirect control feeding frame that the 3rd power unit can be by controlling the second conveying member Material.

The utility model embodiment provide automatic feeding frame in, material preparing rack be for placing more bars to be processed, By the way that material preparing rack is set relative to ground inclination, make bar that there is the trend scrolled down through along inclined-plane, wherein, feeding frame is set The side in material preparing rack is put, the outer wall of feeding frame prevents the movement of bar on material preparing rack；When needing feeding to operate, the first conveying First conveying member of device will can be sent into feeding frame in the presence of the first power unit near the bar of feeding frame, this When, when the first conveying member returns to original position, the bar on material preparing rack under gravity until abutting send by slide downward The outer wall of material frame；Now, because fixture is located at the inner side of feeding frame, it can clamp in the presence of the second power unit and send Bar in material frame, to ensure that the bar and fixture are relatively fixed；Then, set the second conveying device the second conveying member with Bar fixing device is affixed so that the bar fixed of fixture can in the presence of the 3rd power unit withdrawing pattern in front of push-in In the charging aperture 41 of seat, after the clamp assembly in withdrawing pattern seat fixes bar, fixture is multiple in the presence of the second power unit Position, unclamps bar, and subsequent bar fixing device integrally returns to original position in the presence of the 3rd power unit again, completes whole feeding Process.

The utility model embodiment tentatively limits the movement of bar to be processed by feeding frame first, then passes through fixture The side wall of bar is clamped, ensure that bar is relatively fixed relative to fixture, bar is pushed directly on further through the 3rd power unit Fixing device, in the case where bar fixing device sliding trajectory is constant, bar can accurately insert the charging aperture of withdrawing pattern seat In 41, be not in feeding process billet position change and the situation of feeding port can not be properly inserted, ensure that each feeding Accuracy, improve the production efficiency of drawbench.

Meanwhile above-mentioned first power unit, the second power unit and the 3rd power unit are all automatic by sensor Control operation, it is not necessary to manual control, while saving human cost, reduce staff and the hidden of industrial accident occurs Suffer from.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (10)

1. a kind of withdrawing pattern seat, it is characterised in that including clamp assembly, fixed mount and the propulsion group being fixed on the fixed mount Part and stem reducing mould (3)；

The clamp assembly includes relatively-stationary band claw hollow cylinder (1) and connecting plate (2), the band claw hollow cylinder (1) It is slidably arranged in by the connecting plate (2) on the fixed mount, the propulsion assembly can promote the clamp assembly along institute The guide rail (7) stated in fixed mount reciprocatingly slides；

The band claw hollow cylinder (1) includes cylinder body (11), the hollow piston being slidably connected with cylinder body (11) of both ends open (12), deck (13), claw (15) and claw reset assembly (17), the deck (13) are provided with first passed through for bar and led to Hole, the deck (13) include connecting portion and function part, and the connecting portion and the hollow piston (12) are affixed, the function part Side wall be provided with multiple second through holes, the claw (15) is set in second through hole；The claw reset assembly (17) It is affixed with the claw (15), the claw (15) can be made towards the second through hole described in the end face retraction of the first through hole It is interior；

The claw (15) can contact away from the end face of the first through hole with the inwall of the cylinder body (11), make multiple described Claw (15) can be relative in the cylinder body (11) by the hollow piston (12) towards the end face of the first through hole It is mobile to stretch out second through hole and clamp the bar stretched into the first through hole；

The fixed mount is provided with charging aperture (41), the charging aperture (41), the first through hole and the stem reducing mould (3) The concentric setting of necking.

2. withdrawing pattern seat according to claim 1, it is characterised in that also include including fixing nut (14), the connecting portion The first hollow cylinder and the second hollow cylinder that end face is connected with each other, first hollow cylinder can pass through the sky It is indecisive and changeable plug (12), the diameter of second hollow cylinder is more than the internal diameter of the hollow piston (12), less than the hollow work The external diameter of (12) is filled in, the lateral wall that first hollow cylinder stretches out one end of the hollow piston (12) is provided with external screw thread, The fixing nut (14) can be by being threadedly coupled with the external screw thread.

3. withdrawing pattern seat according to claim 2, it is characterised in that the function part includes open circles stage body and annular is fixed Plate (16), the end face of the smaller external diameter of open circles stage body and second hollow cylinder are away from first hollow cylinder End face be connected with each other, the ring-type fixing plate (16) is by being detachably secured to the end face of the larger external diameter of open circles stage body Collectively constitute second through hole.

4. withdrawing pattern seat according to claim 3, it is characterised in that the claw reset assembly (17) includes back-moving spring (172) and L-shaped bar (171), the lateral wall of the open circles stage body are provided with multiple accommodating chambers, and the accommodating chamber surrounds the claw (15) set, the back-moving spring (172) is arranged in the accommodating chamber；

One end of the L-shaped bar (171) and the claw (15) side wall are affixed, the other end towards the accommodating chamber and with it is described multiple Position spring (172) is affixed.

5. withdrawing pattern seat according to claim 1, it is characterised in that the stem reducing mould (3) includes reducing die, fixed seat (31), for the baffle plate (34) being fixed on the reducing die in the fixed seat (31) and the regulation baffle plate (34) and institute State the regulating part (35) of fixed seat (31) position relationship；

The lateral surface of the reducing die is spherical shape, and the fixed seat (31) is provided with the third through-hole that side is spherical shape, The reducing die is inserted into the third through-hole, and the lateral surface of the reducing die can be with the inner side of the fixed seat (31) Face fitting contact；

The baffle plate (34) is fixed on the end face of the fixed seat (31) by regulating part (35), and the baffle plate (34) with it is described The end face fitting contact of reducing die.

6. withdrawing pattern seat according to claim 5, it is characterised in that the reducing die includes being used for the internal model of undergauge processing (33) and for correcting the external mold (32) of internal model (33) position；

The external mold (32) is provided with the fourth hole that side is taper, and the one side where the fourth hole maximum diameter of hole is described End face of the external mold (32) towards the baffle plate (34)；

The lateral surface of the internal model (33) is taper, and the internal model (33) is inserted into the fourth hole, the internal model (33) Lateral surface can be contacted with the fitting of the medial surface of the external mold (32), and the internal model (33) is towards the end of the baffle plate (34) Face contacts with the baffle plate (34) fitting.

7. withdrawing pattern seat according to claim 1, it is characterised in that the fixed mount includes relatively-stationary first fixed plate (4) and the second fixed plate (5), the propulsion assembly and the charging aperture (41) are arranged on first fixed plate (4), described Stem reducing mould (3) is arranged on second fixed plate (5), and the guide rail (7) is fixed on first fixed plate (4) and described Between second fixed plate (5)；

The connecting plate (2) has two, and the connecting plate (2) is separately fixed in the both ends of the surface of the cylinder body (11), Mei Gesuo State connecting plate (2) and be provided with four fifth holes coordinated with the guide rail (7).

8. withdrawing pattern seat according to claim 7, it is characterised in that the propulsion assembly is two hydraulic cylinders (6), the liquid The outer shell of cylinder pressure (6) is bolted on the outside of first fixed plate (4), the piston-rod end of the hydraulic cylinder (6) It is through first fixed plate (4) and affixed with the connecting plate (2) close to first fixed plate (4).

A kind of 9. drawbench, it is characterised in that the withdrawing pattern including automatic feeding frame and as any one of claim 1-8 Seat, the automatic feeding frame is arranged on the side that the fixed mount is provided with the first fixed plate (4), and the automatic feeding frame can Automatically bar is pushed in the first through hole of the withdrawing pattern seat.

10. drawbench according to claim 9, it is characterised in that the automatic feeding frame includes frame body, is arranged on Material preparing rack, feeding frame, the first conveying device, bar fixing device and the second conveying device of the frame body；

The material preparing rack is set relative to ground inclination, the bar on the material preparing rack is slided towards the feeding frame direction Dynamic, first conveying device includes the first conveying member and the first power unit, and first power unit can pass through control The movement of first conveying member and will be transported near the bar of the feeding frame in feeding frame；

The bar fixing device includes fixture and the second power unit, and second power unit can control the fixation Part is fixedly clamped the bar in the feeding frame；

Second conveying device includes the second conveying member and the 3rd power unit, and second conveying member is fixed with the bar Device is affixed, and the 3rd power unit can be by controlling described in the mobile indirect control of second conveying member in feeding frame The feeding of bar.