CN205341770U - Parallel double -end cold -heading device - Google Patents

Parallel double -end cold -heading device Download PDF

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Publication number
CN205341770U
CN205341770U CN201521022875.8U CN201521022875U CN205341770U CN 205341770 U CN205341770 U CN 205341770U CN 201521022875 U CN201521022875 U CN 201521022875U CN 205341770 U CN205341770 U CN 205341770U
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China
Prior art keywords
thimble
chamber
seat
cavity
cold
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Withdrawn - After Issue
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CN201521022875.8U
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Chinese (zh)
Inventor
赵永捷
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Chonqing Fuyue Technology Co Ltd
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Chonqing Fuyue Technology Co Ltd
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Priority to CN201521022875.8U priority Critical patent/CN205341770U/en
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Abstract

The utility model discloses parallel double -end cold -heading device, two cavitys about being equipped with, cavity be from last to divideing into down thimble chamber, thimble seat chamber and hydraulic pressure chamber about, and the hydraulic pressure chamber of two cavitys communicates, be equipped with slidable thimble structure in the cavity, thimble structure comprises thimble, thimble seat, piston rod and piston in proper order, and the thimble seat is arranged in the thimble seat chamber, still including thimble structure fashioned left movable mould of cooperation and right movable mould in two cavitys about with respectively, be equipped with a left side in the left movable mould and move the thimble, be equipped with the right side in the right movable mould and move the thimble. Set traditional cover half to the two -chamber structure to change the thimble in the cover half into movable state from quiescent condition. Because the cover half can carry out intermittent type's cold -heading operation to the cover half after setting the two -chamber structure to to the cold -heading action that utilizes the cavity is ejecting from the cover half with the work piece in another cavity, reaches the make full use of resource and the purpose of utilizing the return time.

Description

Parallel double end cold-heading device
Technical field
This utility model relates to the device of a kind of cold-heading molding, is specifically related to a kind of parallel double end cold-heading device.
Background technology
Cold-heading is to utilize mould forging method to metal bar material upsetting formation at normal temperatures.It is commonly used to manufacture the head of screw, bolt, rivet etc..Can reduce or replace machining.Forging stock material can be copper, aluminum, carbon steel, steel alloy, rustless steel and titanium alloy etc., and stock utilization is up to 80~90%.Cold-heading is many to be carried out on special cold headers, it is simple to realize continuously, multistation, automated production.Certain depth automatically sent by bar by feed mechanism, and shut-off mechanism is cut into blank, is then delivered to accumulation swaging successively by clamp transport mechanism and punching station carries out cold upset forming.The major advantage of cold-heading: cold-heading can be processed into and is suitable for compared with small load and shorter span.Unusual cross sectional shape can be obtained economically, it is thus achieved that gratifying strength-weight ratio by cold-heading processing.Consider packaging and the tight type of transport, nestable cross section can be produced.The impact of non-telescope deformation under surrounding gravity effect.
At present, in cold-heading is processed, the device often used is spring punch die.General spring punch die is vertically arranged, is provided with a thimble doubling as heading.But, in order to strictly control the size of the workpiece after cold-heading, it is a fixing value that general thimble stretches into the length in die cavity, just bar cold-heading can be become workpiece after the fully-inserted die cavity of thimble.After workpiece cold-heading molding, it is necessary to will take out in its driven die cavity, in general, the workpiece that shape is comparatively regular can come off under gravity automatically from die cavity, it is achieved stripping operation.But, man-hour is being added for special workpiece, bar is after cold-heading, and partial cross section is long-pending becomes big, can occur the phenomenon containing material in die cavity.Add workpiece deadweight less, it is impossible to deviate from from die cavity by workpiece under the effect of self gravitation.When running into this workpiece, after cold-heading, it is necessary to thimble is exited from spring punch die, insert in die cavity with another longer push rod, workpiece is ejected.This mode, not only wastes time and energy, and is repeatedly inserted into push rod and thimble all suffers from a problem reorientated every time, once location is inaccurate, can cause the deflection of push rod or thimble or even fracture during insertion.Furthermore; thimble is arranged in dynamic model by conventional cold-heading mechanism; deadweight mainly by equipment carries out cold-heading operation; but; thimble is arranged in dynamic model; can move along with the motion of dynamic model, the action of dynamic model backhaul and the motion of thimble are not effectively combined, actually cause the waste of time and power.
Utility model content
The purpose of this utility model is in that to provide a kind of parallel double end cold-heading device, adopts the fixed mould structure of improvement, utilizes the thimble of two linkages in cover half to complete the action of cold-heading and pusher in the process of cold-heading.
For reaching above-mentioned purpose, the technical solution of the utility model is: parallel double end cold-heading device, is provided with two cavitys in left and right, and described cavity is divided into thimble chamber, thimble seat chamber and hydraulic cavities, the hydraulic chamber into communication of two cavitys in described left and right from top to bottom;Being provided with slidably thimble structure in described cavity, described thimble structure is made up of thimble, thimble seat, piston rod and piston successively, and described thimble seat is arranged in thimble seat chamber;Also include coordinating the left dynamic model of molding and right dynamic model with the thimble structure in the cavity of two, left and right respectively, described left dynamic model is provided with left dynamic thimble, described right dynamic model is provided with right dynamic thimble.
When adopting technique scheme, traditional cover half is arranged to double cavity structure, and has changed the thimble in cover half into movable state from resting state.After being arranged to double cavity structure due to cover half, it is possible to cover half carries out the cold-heading operation of interval, and utilizes the cold-heading action of cavity to be ejected from cover half by the workpiece in another cavity, reach make full use of resource and utilize the purpose of return interval.Concrete, because adding a thimble seat chamber, thimble seat is made to be merely able to slide at thimble seat intracavity, and when thimble seat touches downwards thimble seat cavity wall, thimble seat is had one to support and position-limiting action by thimble seat cavity wall, make thimble can undertake the pressure of cold-heading, this pressure transmission to thimble seat cavity wall and then is passed on cover half.On the other hand, thimble seat slides in thimble seat chamber, and the distance of its slip finally shows that the thimble of another side stretches in the length in thimble chamber.When left dynamic model moves downward, by maximum for the thimble on the left side stretch into thimble chamber time, on right dynamic model move, staggered positions;Pass through hydraulic structure; the workpiece of molding in the thimble chamber on the right is ejected; avoiding workpiece card to be placed in thimble chamber needs independent step and structure to be ejected; not only save the step of processing; the gap being also fully utilized by the course of processing dynamic model backhaul carries out liftout operation, has and important progressive meaning.
Further improvement project, in order to solve thimble seat processing and use in matching problem, described thimble, thimble seat, piston rod and piston are all cylindrical, the axis conllinear of described thimble, thimble seat and piston rod, the diameter of described thimble seat is more than the diameter of thimble, and the diameter of described thimble seat is more than the diameter of piston rod.Above-mentioned setting, the mode of circumgyration incision can be utilized to process the structure of the thimble seat of one, thimble and piston rod by work in-process, and in use, thimble seat chamber coordinates with thimble seat, thimble seat is made to be applied to the pressure in thimble seat cavity wall comparatively uniform, it is prevented that to cause stress raisers.
Further improvement project, in order to take into account thimble seat and thimble intensity, and needing structure reasonable in design to seek the balance of mechanical property and processing cost, the diameter of described thimble is identical with the diameter of piston rod, and the diameter of described thimble seat is the twice of thimble diameter.
Further improvement project, the cavity wall place in described thimble chamber is inlaid with insert, and the inner chamber vertical sectional shape of described insert is " convex " font.It is set to the section of workpiece after " convex " font can embody cold-heading and occurs becoming big situation and cross sectional shape the ejecting without influence on workpiece of rule.
Further improvement project, two, described left and right cavity specular is arranged.The set-up mode adopting specular makes the structure of two cavitys and stress symmetrical, improves the stability of structure.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail:
Fig. 1 is the structural representation of the parallel double end cold-heading device embodiment of this utility model;
Fig. 2 is another use status architecture schematic diagram of Fig. 1.
Detailed description of the invention
Accompanying drawing labelling: thimble chamber 11, thimble seat chamber 12, hydraulic cavities 13, insert 2, thimble 31, thimble seat 32, piston rod 33, piston 34, shaping workpiece 4, left dynamic model 5, right dynamic model 6.
As depicted in figs. 1 and 2, the parallel double end cold-heading device of this utility model, the lateral wall of cover half is correspondingly arranged on corresponding fixed structure, for cover half is fixed on mounting seat.Offering the cavity of two hollows in cover half, cavity is divided into thimble chamber 11, thimble seat chamber 12 and hydraulic cavities 13, and thimble chamber 11 is positioned at the upper end of cavity, and hydraulic cavities 13 is positioned at the bottom of cavity, and thimble seat chamber 12 is between thimble chamber 11 and thimble seat chamber 12.In cavity, the cavity wall place being positioned at thimble chamber 11 is inlaid with insert 2, and the hardness of insert 2 is more than the hardness of cavity, when carrying out workpiece cold-heading molding in thimble chamber 11, is possible to prevent cavity is caused abrasion by insert 2.The hydraulic cavities 13 of two cavity bottoms is interconnected, and forms a linker.Being provided with a thimble structure that can slide in cavity, this thimble structure includes thimble 31, thimble seat 32, piston rod 33 and piston 34.Wherein, thimble 31, thimble seat 32, piston rod 33 and piston 34 are cylinder, and the diameter of thimble 31 is identical with the diameter of piston rod 33, and the diameter of thimble seat 32 is more than the diameter of thimble 31 and piston rod 33.The diameter of piston 34 is more than the diameter of piston rod 33.Thimble seat 32 therein is arranged in thimble seat chamber 12, and thimble seat 32 can slide up and down in thimble seat chamber 12, and piston 34 can close the cross section of hydraulic cavities 13 so that whole hydraulic structure plays corresponding effect.Wherein, thimble seat 32, thimble seat chamber 12, thimble 31 length also have a matching relationship.Specifically as shown in Fig. 1 position put, when the bottom surface of thimble seat 32 on the left side contacts with the inner bottom surface in the thimble seat chamber 12 on the left side, the upper end of the thimble 31 on the left side is normally stretched in the thimble chamber 11 on top, at this moment, the upper end of the thimble 31 on the left side formed be positioned at the left side the cold-heading bottom surface in thimble chamber 11, and pressure is passed to the thimble seat chamber 12 on the left side by the thimble 31 on the left side by the bottom surface of the thimble seat 32 on the left side, and then passes to cover half.In this case, the piston rod 33 on the left side excessively stretches in the hydraulic cavities 13 on the left side together with piston 34 thereon, liquid therein is pressed to right side, the piston 34 making the right moves together with on wherein piston rod 33, thus the thimble 31 on the right excessively being stretched in the thimble chamber 11 on the right, the shaping workpiece 4 in the thimble chamber 11 on the right is ejected.
As depicted in figs. 1 and 2, during use, left dynamic model 5 and right dynamic model 6 are to replace down operation.Insert in the thimble chamber 11 on the left side after bar to be processed is gripped by left dynamic model 5, and left dynamic model 5 applies cold-heading pressure, owing to left dynamic model 5 having left dynamic thimble, bar is made to withstand the thimble 31 on the left side by the dynamic thimble in a left side, by the thimble 31 on the left side, the thimble seat 32 on the left side is pushed down on, until the thimble seat 32 on the left side withstands in the cavity wall in the thimble seat chamber 12 on the left side immovable, the piston rod 33 of thimble seat 32 bottom on the left side excessively stretches in the hydraulic cavities 13 of bottom together with piston 34 thereon simultaneously, liquid therein is pressed to right side, the piston 34 making the right moves together with on wherein piston rod 33, thus the thimble 31 on the right excessively being stretched in the thimble chamber 11 on the right, shaping workpiece 4 in the thimble chamber 11 on the right is ejected.Left mould continues to cold-heading pressure, by bar cold-heading molding in the thimble chamber 11 on the left side.Rear left dynamic model 5 exit, shaping workpiece 4 is probably due to the reason containing material is stuck in and can not automatically exit from the thimble chamber 11 on the left side.Operate in the thimble chamber 11 inserting the right after bar to be processed is gripped by right dynamic model 6 by right dynamic model 6, and the dynamic thimble in the right side in right dynamic model 6 applies cold-heading pressure, bar is made to withstand the thimble 31 on the right, by the thimble 31 on the right, the thimble seat 32 on the right is pushed down on, until the thimble seat 32 on the right withstands in the cavity wall in the thimble seat chamber 12 on the right immovable, simultaneously the thimble 31 on the left side by the thimble chamber 11 on the left side the shaping workpiece 4 of cold-heading molding eject, right dynamic model 6 continues to cold-heading pressure, by cold-heading molding in bar thimble chamber 11 on the right.Alternately above-mentioned action, it is achieved the operation of the cold-heading molding of workpiece and automatic material returning in cold-heading cover half.
Traditional cover half is arranged to double cavity structure, and changes the thimble 31 in cover half into movable state from resting state.After being arranged to double cavity structure due to cover half, it is possible to cover half carries out the cold-heading operation of interval, and utilizes the cold-heading action of cavity to be ejected from cover half by the shaping workpiece 4 in another cavity, reach make full use of resource and utilize the purpose of return interval.Concrete, because adding a thimble seat chamber 12, make thimble seat 32 be merely able in thimble seat chamber 12 to slide, and when thimble seat 32 touches downwards thimble seat chamber 12 wall, thimble seat 32 is had one to support and position-limiting action by thimble seat chamber 12 wall, make thimble 31 can undertake the pressure of cold-heading, this pressure transmission to thimble seat chamber 12 wall and then is passed on cover half.On the other hand, thimble seat 32 slides in thimble seat chamber 12, and the distance of its slip finally shows that the thimble 31 of another side stretches in the length in thimble chamber 11.When left dynamic model 5 moves downward, by maximum for the thimble 31 on the left side stretch into thimble chamber 11 time, on right dynamic model 6 move, staggered positions;Pass through hydraulic structure; the shaping workpiece 4 of molding in the thimble chamber 11 on the right is ejected; shaping workpiece 4 card is avoided to be placed in thimble chamber 11 and need independent step and structure to be ejected; not only save the step of processing; the gap being also fully utilized by the course of processing dynamic model backhaul carries out liftout operation, has and important progressive meaning.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; without departing from the concept of the premise utility; some deformation and improvement can also be made; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented.

Claims (5)

1. parallel double end cold-heading device, is characterized in that, is provided with two cavitys in left and right, and described cavity is divided into thimble chamber, thimble seat chamber and hydraulic cavities, the hydraulic chamber into communication of two cavitys in described left and right from top to bottom;Being provided with slidably thimble structure in described cavity, described thimble structure is made up of thimble, thimble seat, piston rod and piston successively, and described thimble seat is arranged in thimble seat chamber;Also include coordinating the left dynamic model of molding and right dynamic model with the thimble structure in the cavity of two, left and right respectively, described left dynamic model is provided with left dynamic thimble, described right dynamic model is provided with right dynamic thimble.
2. parallel double end cold-heading device according to claim 1, it is characterized in that, described thimble, thimble seat, piston rod and piston are all cylindrical, the axis conllinear of described thimble, thimble seat and piston rod, the diameter of described thimble seat is more than the diameter of thimble, and the diameter of described thimble seat is more than the diameter of piston rod.
3. parallel double end cold-heading device according to claim 2, is characterized in that, the diameter of described thimble is identical with the diameter of piston rod, and the diameter of described thimble seat is the twice of thimble diameter.
4. parallel double end cold-heading device according to claim 2, is characterized in that, the cavity wall place in described thimble chamber is inlaid with insert, and the inner chamber vertical sectional shape of described insert is " convex " font.
5. parallel double end cold-heading device according to claim 1, is characterized in that, two, described left and right cavity specular is arranged.
CN201521022875.8U 2015-12-10 2015-12-10 Parallel double -end cold -heading device Withdrawn - After Issue CN205341770U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521022875.8U CN205341770U (en) 2015-12-10 2015-12-10 Parallel double -end cold -heading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521022875.8U CN205341770U (en) 2015-12-10 2015-12-10 Parallel double -end cold -heading device

Publications (1)

Publication Number Publication Date
CN205341770U true CN205341770U (en) 2016-06-29

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CN201521022875.8U Withdrawn - After Issue CN205341770U (en) 2015-12-10 2015-12-10 Parallel double -end cold -heading device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105344904A (en) * 2015-12-10 2016-02-24 重庆福悦安科技有限公司 Parallel double-head cold upsetting device
CN112935167A (en) * 2021-03-05 2021-06-11 程桂兰 Electronic kiln feeding equipment and hold fever board thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105344904A (en) * 2015-12-10 2016-02-24 重庆福悦安科技有限公司 Parallel double-head cold upsetting device
CN112935167A (en) * 2021-03-05 2021-06-11 程桂兰 Electronic kiln feeding equipment and hold fever board thereof

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20160629

Effective date of abandoning: 20170613

AV01 Patent right actively abandoned