CN106513550A - Pre-forging process for forging hot extrusion through hole of working-clip - Google Patents
Pre-forging process for forging hot extrusion through hole of working-clip Download PDFInfo
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- CN106513550A CN106513550A CN201510573237.3A CN201510573237A CN106513550A CN 106513550 A CN106513550 A CN 106513550A CN 201510573237 A CN201510573237 A CN 201510573237A CN 106513550 A CN106513550 A CN 106513550A
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Abstract
The invention discloses a pre-forging process for forging a hot extrusion through hole of a working-clip. An upper die plate, a lower die plate and a pulling plate are included and connected through two parallel pulling rods. A die handle is installed on the upper die plate, a male die is installed on the die handle, and a female die located under the male die is installed on the lower die plate. The forging process is used for machining and forming the anchor device working-clip and takes the place of a present drilling process, and the usage amount of raw materials is reduced; according to the relation between the size of the working-clip through hole and the total size of the working-clip, it can be seen that compared with the present process, the pre-forging process has the beneficial effects that the usage amount of the raw materials can be reduced, the machining procedures can be reduced, and the purpose of reducing about 20% of the cost is achieved; and the automation degree is relatively high, the machining speed is high, and the male die and the female die are replaced easily.
Description
Technical field
The present invention relates to the mould that a kind of forging technology is used, specifically refers to the pre- forging process 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 blank forging of cylinder is provided initial workpiece into the workpiece of just tool shape for molding forging technology using forward extrusion closed forging method by the pre- forging process of hammered work intermediate plate hot extrusion through hole.
The purpose of the present invention is achieved through the following technical solutions：
The pre- forging process 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, the die being provided with lower template immediately below punch on die shank.During use, the cylinder blank for having been heated to 1100 ± 20 DEG C is put in die, punch press drives upper die plate, upper die plate drives punch to move downward, punch is moved downward carries out forging extruding to workpiece, so that the metal of blank is moved downward and filled inside die, blank is extruded to form shaping workpiece, after completing extruding, punch press drives upper die plate to move upwards, punch upwards, is departed from shaping workpiece, completes pre- forging process, after workpiece is ejected, workpiece is can be taken off, new workpiece is installed, is processed next time.
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 has certain access times and operating limit, belongs to consumable goodss, can be the independent original paper of replacing, therefore, die is connected with die circle stress by taper fit, and die circle stress provides anti-impact force for die, and die circle stress is fixedly connected on die holder by die locking nut, die holder passes through screw or is bolted in lower template, 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 pre- forging process of 1 hammered work intermediate plate hot extrusion through hole of the present invention, forging technology is coordinated to process to form anchor work clip sheet, 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；
The pre- forging process of 2 hammered work intermediate plate hot extrusion through holes of the present invention, automaticity are higher, and process velocity is fast, and punch and die are readily replaceable；
The pre- forging process of 3 hammered work intermediate plate hot extrusion through holes of the present invention, 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 schematic diagram Jing after inventive die processing.
Labelling and corresponding parts title in accompanying drawing：
101- die shanks, 103- water pipe heads, 105- punch, 106- dies, 107- die circle stresses, 108- die locking nuts, 109- die holders, 114- upper die plates, 115- punch locking nuts, 116- upper ejector pins, 117- die supporters, 120- lower push rods, 122- lower templates, 124- pull bars, 125- footstocks, 126- arm-ties.
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 pre- forging process of hammered work intermediate plate hot extrusion through hole of the present invention，Including upper die plate 114、Lower template 122、And arm-tie 126，Upper die plate 114、Lower template 122、And arm-tie 126 is connected by two pull bars 124 being parallel to each other，Die shank 101 is installed on upper die plate 114，Punch 105 is installed on die shank 101，Punch 105 is fixedly connected on die shank 101 by punch locking nut 115，Water pipe head 103 is provided with punch locking nut 115，Die holder 109 is installed in lower template 122，Die supporter 117 is set with die holder 109，Die circle stress 107 is installed on die supporter 117，Die 106 is set with die circle stress 107，Die 106 is connected by taper fit with die circle stress 107，Die circle stress 107 is fixedly connected on die holder 109 by die locking nut 108，Die 106 is located at immediately below punch 105，The connection chamber coaxial with die 116 is provided with die supporter 117，Upper ejector pin 116 is placed with the connection within the chamber，The through hole coaxial with die 106 is provided with lower template 122，Footstock 125 is installed in through hole，Lower push rod 120 is set with footstock 125.
The use technique of the pre- forging process 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 pre- forging process of hammered work intermediate plate hot extrusion through hole, including upper die plate（114）, lower template（122）, and arm-tie（126）, upper die plate（114）, lower template（122）, and arm-tie（126）By two pull bars being parallel to each other（124）Connection, it is characterised in that：In described upper die plate（114）On die shank is installed（101）, in die shank（101）On punch is installed（105）, in lower template（122）On be provided with positioned at punch（105）The die of underface（106）During use, the cylinder blank for having been heated to 1100 ± 20 DEG C is put in die, punch press drives upper die plate, upper die plate drives punch to move downward, and punch is moved downward carries out forging extruding to workpiece so that the metal of blank is moved downward and filled inside die, blank is extruded to form shaping workpiece, after completing extruding, punch press drives upper die plate to move upwards, and punch is upwards, depart from shaping workpiece, pre- forging process is completed, after workpiece is ejected, you can take out workpiece, new workpiece is installed, is processed next time.
2. the pre- forging process of hammered work intermediate plate hot extrusion through hole according to claim 1, it is characterised in that：In described lower template（122）On die holder is installed（109）, in die holder（109）Die supporter is set with inside（117）, in die supporter（117）On die circle stress is installed（107）, in die circle stress（107）Die is set with inside（106）, die（106）With die circle stress（107）Connected by taper fit, die circle stress（107）By die locking nut（108）It is fixedly connected on die holder（109）On.
3. the pre- forging process of hammered work intermediate plate hot extrusion through hole according to claim 2, it is characterised in that：In the die supporter（117）On be provided with and die（116）Coaxial connection chamber, is placed with upper ejector pin in the connection within the chamber（116）, in lower template（122）On be provided with and die（106）Coaxial through hole, is provided with footstock in through hole（125）, in footstock（125）Lower push rod is set with inside（120）.
4. the pre- forging process of hammered work intermediate plate hot extrusion through hole according to claim 1, it is characterised in that：The punch（105）By punch locking nut（115）It is fixedly connected on die shank（101）On, in the punch locking nut（115）On be provided with water pipe head（103）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573237.3A CN106513550A (en) | 2015-09-10 | 2015-09-10 | Pre-forging process for forging hot extrusion through hole of working-clip |
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| CN201510573237.3A CN106513550A (en) | 2015-09-10 | 2015-09-10 | Pre-forging process for forging hot extrusion through hole of working-clip |
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| CN106513550A true CN106513550A (en) | 2017-03-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201853A (en) * | 2017-06-30 | 2019-01-15 | 贵州风雷航空军械有限责任公司 | A kind of formed punch exchange method being punched different shape specification hole |
| CN109365709A (en) * | 2018-12-03 | 2019-02-22 | 刘婧 | A kind of crawler belt guide forging mold |
| CN117772979A (en) * | 2024-02-26 | 2024-03-29 | 溧阳市金昆锻压有限公司 | Anti-offset axle bridge forging method and equipment |
-
2015
- 2015-09-10 CN CN201510573237.3A patent/CN106513550A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201853A (en) * | 2017-06-30 | 2019-01-15 | 贵州风雷航空军械有限责任公司 | A kind of formed punch exchange method being punched different shape specification hole |
| CN109365709A (en) * | 2018-12-03 | 2019-02-22 | 刘婧 | A kind of crawler belt guide forging mold |
| CN117772979A (en) * | 2024-02-26 | 2024-03-29 | 溧阳市金昆锻压有限公司 | Anti-offset axle bridge forging method and equipment |
| CN117772979B (en) * | 2024-02-26 | 2024-05-28 | 溧阳市金昆锻压有限公司 | Anti-offset axle bridge forging method and equipment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |
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| WD01 | Invention patent application deemed withdrawn after publication |