CN106513549A - Forming method for hot-extrusion through holes of working clip in forging mode - Google Patents
Forming method for hot-extrusion through holes of working clip in forging mode Download PDFInfo
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- CN106513549A CN106513549A CN201510573171.8A CN201510573171A CN106513549A CN 106513549 A CN106513549 A CN 106513549A CN 201510573171 A CN201510573171 A CN 201510573171A CN 106513549 A CN106513549 A CN 106513549A
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Abstract
The invention discloses a forming method for hot-extrusion through holes of a working clip in a forging mode. The forming method is characterized by comprising an upper molding board, a lower molding board and a pulling plate, wherein a mould handle is mounted on the upper molding board; a convex mould is mounted on the mould handle; two unloading rods are mounted on the lower molding board; unloading plates are mounted on the unloading rods; springs in the state of compression are arranged on the unloading rods between the unloading plates and the lower molding board in a sleeving mode; convex mould sleeves are mounted on the unloading plates; and a concave mould matched with the convex mould is further mounted on the lower molding board. The convex mould and the convex mould sleeve are centered in a matched mode and enter the concave mould together for being re-shaped after being pierced, so that products are prevented from offsetting, the height of the products can be fixed after being regulated, and reshaped workpieces are guaranteed to meet process requirements; the reshaped convex mould drives the workpieces to ascend, and the convex mould and the convex mould sleeve are separated to complete unloading after the workpieces reach set positions; and compared with an existing process, the forming method has the beneficial effects of saving consumption of raw materials, reducing machining processes and achieving the purpose of reducing cost by about 20%.
Description
Technical field
The present invention relates to the mould that a kind of forging technology is used, specifically refers to the forming method of hammered work intermediate plate hot extrusion through hole.
Background technology
As the development of prestressing technique, intermediate plate anchor proportion in prestress engineering are increasing, consumption is sharply increased, and the maximum when anchor clipper of most important in intermediate plate anchor, consumption.For clamping presstressed reinforcing steel when the deformed bar of prestressed concrete member is determined in anchoring, he is widely used in the construction such as different types of rridges road skyscraper anchor clipper.The traditional handicraft of each prestressing force manufacturer production anchor clipper is to adopt round bar at present, then carries out splitting the operations such as end face, turning hole, drilling, smart car endoporus, processing hole taper, tapping thread, car external taper, cutting, heat treatment and sandblasting.Blasting treatment process after heat treatment is little to the impact of surface of the work and shear action power, causes inefficiency, and the workpiece surface quality after process is poor.
The content of the invention
It is an object of the invention to provide the forming method of hammered work intermediate plate hot extrusion through hole, coordinates processing technique, the method for substituting machining manufacture anchor work clip sheet reaches the consumption for reducing raw material, reduces machining processes, the purpose of reduces cost.
The purpose of the present invention is achieved through the following technical solutions：
The forming method of hammered work intermediate plate hot extrusion through hole, including upper die plate, lower template and arm-tie, the pull bar connection that upper die plate, lower template and arm-tie are parallel to each other by two, die shank is installed on described upper die plate, punch is installed on die shank, two discharge arms are installed in lower template, stripper is installed on discharge arm, the spring in compressive state is set with discharge arm between stripper and lower template, punch case is installed on stripper, the die matched with punch is also equipped with lower template.During use, the good workpiece of blocking is put in die, punch press drives upper die plate, upper die plate drives punch to move downward, punch initially passes through the through hole of punch case, then could continue to move downward, forging extruding is carried out to workpiece, after completing extruding, spring in compressive state drives stripper to move upwards, when extreme higher position is reached, punch is continued up, and workpiece departs from punch in the presence of stripper, after workpiece is ejected, workpiece is can be taken off, new workpiece is installed, is processed next time.Relative to current technique, the through hole of anchor work clip sheet is processed into by the way of mould forging, instead of current bore process, the usage amount of raw material is saved, according to the volume of work clip sheet through hole with the relation of the cumulative volume of work clip sheet it is known that compare current technique, the consumption that can be saved material, machining processes are reduced, the purpose of cost 20% or so is reduced.
Die holder is installed in described lower template, die supporter is set with die holder, die circle stress is installed on die supporter, die is set with die circle stress, die is connected by taper fit with die circle stress, and die circle stress is fixedly connected on die holder by die locking nut.Further, die can be the independent original paper of replacing, it is connected with die circle stress by taper fit, die circle stress provides anti-impact force for die, die circle stress is fixedly connected on die holder by die locking nut, thus, die not only can be changed when die is damaged, and the model of processing workpiece can be expanded.
The connection chamber coaxial with die is provided with the die supporter, is placed with upper ejector pin in the connection within the chamber, is provided with the through hole coaxial with die in lower template, footstock is installed in through hole, is set with lower push rod in footstock.Further，For the ease of the ejection of workpiece，It is easy to the taking-up of workpiece，Connection chamber is provided with die supporter，Through hole is provided with lower template，Connection chamber、Through hole、And the axis of die is respectively positioned on same straight line，Connection chamber is integrally made up of two different circular cylindrical cavities of diameter，Wherein，The less circular cylindrical cavity of diameter is connected with the cavity of die，The circular cylindrical cavity being relatively large in diameter is connected with the through hole of lower template，The through hole of lower template is equally made up of the different Liang Ge cylindrical chamber of diameter，The big chamber of its diameter is connected with the large diameter cylinder type cavity for connecting chamber，Upper ejector pin is installed in connection within the chamber，The diameter of upper ejector pin is matched with the small-diameter circular cylinder for connecting chamber，Limited block with diameter greater than upper ejector pin diameter is installed thereunder，Upper ejector pin can do motion freely up and down in connection within the chamber，Lower push rod is installed in footstock，After lower push rod moves up and down，Upper ejector pin can be promoted to move.By lower push rod and the cooperation of upper ejector pin, workpiece can be ejected from die, be easy to take out and change.
The punch is fixedly connected on die shank by punch locking nut, on the punch locking nut is provided with water pipe head.Further, as the punch in running order time is longer, the heat which is subject to is larger, in order to lower the temperature to punch, water pipe head, water pipe head connection coolant is provided with punch locking nut, the normal working temperature of punch can be kept, it is to avoid the too high problem brought of temperature.
The present invention compared with prior art, has the following advantages and advantages：
The forming method of 1 hammered work intermediate plate hot extrusion through hole of the present invention, relative to current technique, the through hole of anchor work clip sheet is processed into by the way of mould forging, current bore process is instead of, the usage amount of raw material has been saved, can be learnt according to the relation of the cumulative volume of the volume and work clip sheet of work clip sheet through hole, compare current technique, the consumption that can be saved material, reduces machining processes, reduces the purpose of cost 20% or so；
The mould that the forming method of 2 hammered work intermediate plate hot extrusion through holes of the present invention is used, by punch and punch case first coordinate centering after together with enter die shaping, prevent product eccentric, can fix after forming height, discharging height, ejection height are adjusted, after ensureing shaping, workpiece height reaches technological requirement, after shaping, punch rises with workpiece, to after setting position, punch separates discharging with punch case and completes, workpiece is ejected by liftout system, take out workpiece, mould is cooled down by automatic cooling system simultaneously, mould parts realize quick-replaceable；
The mould that the forming method of 3 hammered work intermediate plate hot extrusion through holes of the present invention is used, structure is novel, be simple to manufacture, cooling, lubrication, discharging, die change time≤10min automatically, and the service life of punch reaches 10000/.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the Workpiece structure figure that Jing present invention processing is obtained.
Labelling and corresponding parts title in accompanying drawing：
201- die shanks, 203- water pipe heads, 205- punch, 206- dies, 207- die circle stresses, 208- die locking nuts, 209- die holders, 214- upper die plates, 215- punch locking nuts, 216- punch cases, 217- upper ejector pins, 218- die supporters, 221- lower push rods, 223- lower templates, 225- pull bars, 226- footstocks, 227- arm-ties, 228- strippers, 229- discharge arms, 230- springs.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment
As shown in Figure 1, the forming method of hammered work intermediate plate hot extrusion through hole of the present invention, including upper die plate 214, lower template 223, and arm-tie 227, upper die plate 214, lower template 223, and arm-tie 227 connected by two pull bars 225 being parallel to each other, die shank 201 is installed on upper die plate 214, punch 216 is installed on die shank 201, punch 216 is fixedly connected on die shank 201 by punch locking nut 215, is provided with water pipe head 203 on punch locking nut 215；Two discharge arms 229 are installed in lower template 223, stripper 228 is installed on discharge arm 229, the spring 230 in compressive state is set with discharge arm 229 between stripper 228 and lower template 223, punch case 216 is installed on stripper 228, die holder 209 is also equipped with lower template 223, die supporter 218 is set with die holder 209, die circle stress 207 is installed on die supporter 218, die 206 is set with die circle stress 207, die 206 is connected by taper fit with die circle stress 207, die circle stress 207 is fixedly connected on die holder 209 by die locking nut 208；The connection chamber coaxial with die 206 is provided with die supporter 218, upper ejector pin 217 is placed with the connection within the chamber, the through hole coaxial with die 206 is provided with, footstock 226 is installed in through hole in lower template 223, in footstock 226 be set with lower push rod 221.
The use technique of the forming method of hammered work intermediate plate hot extrusion through hole, comprises the following steps：
（A）Blanking：Using sawing machine blanking, the size of blank is φ 25 × 33.5；
（B）Deburring：Using grinder to step（A）Blank deburring, burr on blank, greasy dirt, rust staining and dirt are removed, after blank cleaning is clean, blank are separated according to different heat (batch) numbers；
（C）Heating：By step（B）Clean blank place heating in medium frequency stove heat, heating-up temperature is 1100 ± 20 DEG C；
（D）Blocking：Using 100 tons of punch presses, following steps are completed in 5S：
（D1）Mould is correctly installed, checks whether punch, die align, whether close height correct, and punch case is into after die 20mm according to product height fine adjusting function；
（D2）Recirculated cooling water being opened, the flow of die recirculated cooling water being adjusted according to mold temperature, allow cooling water energy to enter in die, it is 1～5ml/s that cooling water enters the flow of die；
（D3）Start, first dry running twice, check whether punch press is normal；
（D4）Blank clamp after heating is properly placed in die, is forged, when slide block returns to after top dead center, taken out forging, be transferred to shaping dies；
（E）Shaping：Using 100 tons of punch presses, complete to step in 5S（D4）The forging for obtaining is followed the steps below：
（E1）Mould is correctly installed, checks whether punch, die align, whether close height correct, and punch case is into after die 14.5mm according to product height fine adjusting function；
（E2）Recirculated cooling water being opened, die circulating cooling water flow being adjusted according to mold temperature, allow cooling water energy to enter in die, it is 1～5ml/s that cooling water enters the flow of die；
（E3）Start, first dry running twice, check whether punch press is normal；
（E4）Blocking good workpiece clamp is properly placed in die, is forged, when slide block returns to after top dead center, taken out forging, be transferred to shaping mould；
（F）Shaping：Using 100 tons of punch presses, to step（E）The forging for obtaining carries out forward extrusion closed-die forging；The step（F）Needs are completed in 5S, specifically include following steps：
（F1）Mould is correctly installed, checks whether punch, die align, whether close height correct, and punch case is into after die 16.5mm according to product height fine adjusting function；
（F2）Recirculated cooling water being opened, the flow of die recirculated cooling water being adjusted according to mold temperature, allow cooling water energy to enter in die, it is 1～5ml/s that cooling water enters the flow of die；
（F3）Start, first dry running twice, check whether punch press is normal；
（F4）Formed workpiece clamp is properly placed in die, is forged, when slide block returns to after top dead center, take out forging；
（G）Cooling：By step（F4）The forging for obtaining is cooled to 600 DEG C in being positioned over lubricating substance groove after, forging is hooked into heap in hopper cold；
（H）Ball blast：With shot-blasting machine by step（G）The workpiece oxide skin for obtaining is removed completely.
Checked finally according to blank drawing, Jing statistics, conforming product rate of the technique in the experimental stage reaches more than 98%, the qualification rate of significantly larger than current machinofacture.
The above, is only presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention, and any simple modification made to above example in every technical spirit according to the present invention, equivalent variations are each fallen within protection scope of the present invention.
Claims (4)
1. the forming method of hammered work intermediate plate hot extrusion through hole, including upper die plate（214）, lower template 223）, and arm-tie（227）, upper die plate（214）, lower template（223）, and arm-tie（227）By two pull bars being parallel to each other（225）Connection, it is characterised in that：In described upper die plate（214）On die shank is installed（201）, in die shank（201）On punch is installed（205）, in lower template（223）On two discharge arms are installed（229）, in discharge arm（229）On stripper is installed（228）, in stripper（228）With lower template（223）Between discharge arm（229）On be set with spring in compressive state（230）, in stripper（228）On punch case is installed（216）, in lower template（223）On be also equipped with and punch（205）The die for matching（206）.
2. the forming method of hammered work intermediate plate hot extrusion through hole according to claim 1, it is characterised in that：In described lower template（223）On die holder is installed（209）, in die holder（209）Die supporter is set with inside（218）, in die supporter（218）On die circle stress is installed（207）, in die circle stress（207）Die is set with inside（206）, die（206）With die circle stress（207）Connected by taper fit, die circle stress（207）By die locking nut（208）It is fixedly connected on die holder（209）On.
3. the forming method of hammered work intermediate plate hot extrusion through hole according to claim 2, it is characterised in that：In the die supporter（218）On be provided with the connection chamber coaxial with die, be placed with upper ejector pin in the connection within the chamber（217）, in lower template（223）On be provided with and die（206）Coaxial through hole, is provided with footstock in through hole（226）, in footstock（226）Lower push rod is set with inside（221）.
4. the forming method of hammered work intermediate plate hot extrusion through hole according to claim 1, it is characterised in that：The punch（205）By punch locking nut（215）It is fixedly connected on die shank（201）On, in the punch locking nut（215）On be provided with water pipe head（203）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573171.8A CN106513549A (en) | 2015-09-10 | 2015-09-10 | Forming method for hot-extrusion through holes of working clip in forging mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573171.8A CN106513549A (en) | 2015-09-10 | 2015-09-10 | Forming method for hot-extrusion through holes of working clip in forging mode |
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| Publication Number | Publication Date |
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| CN106513549A true CN106513549A (en) | 2017-03-22 |
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| CN201510573171.8A Pending CN106513549A (en) | 2015-09-10 | 2015-09-10 | Forming method for hot-extrusion through holes of working clip in forging mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336463A (en) * | 2017-08-28 | 2017-11-10 | 陈志妹 | A kind of new crowded mouth mold tool |
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2015
- 2015-09-10 CN CN201510573171.8A patent/CN106513549A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336463A (en) * | 2017-08-28 | 2017-11-10 | 陈志妹 | A kind of new crowded mouth mold tool |
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Application publication date: 20170322 |
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| WD01 | Invention patent application deemed withdrawn after publication |