CN104368740A - Movable main mold core structure - Google Patents
Movable main mold core structure Download PDFInfo
- Publication number
- CN104368740A CN104368740A CN201410513158.9A CN201410513158A CN104368740A CN 104368740 A CN104368740 A CN 104368740A CN 201410513158 A CN201410513158 A CN 201410513158A CN 104368740 A CN104368740 A CN 104368740A
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- Prior art keywords
- main
- core rod
- workpiece
- main core
- main mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a movable main mold core structure which comprises a main mold shell located below a punch die. A main mold core capable of moving downwards along the axis of the main mold shell is arranged in the main mold shell in a sleeved mode. A containing hole is formed in the inner side of the main mold core. A workpiece to be punched is coaxially arranged in the containing hole and moves together with the main mold core. A main mold ejector pin flush with the position to be punched is arranged on the bottom of the main mold core. When the main mold core moves downwards, the main mold ejector pin can form the hole to be punched in the containing hole in an extruding mode. According to the movable main mold core structure, the problems that a hole is punched obliquely due to unstable punching and the hole is not punched deep enough are solved.
Description
Technical field
The present invention relates to cold upsetting die of car technical field, particularly relate to a kind of movable main mold insert structure.
Background technology
Existing mould comprises punch die and main mould, is provided with die cavity in punch die, is provided with master cast chamber in main mould, when carrying out pier, undertaken pier system, adopt this kind of structure by the main mould of die stroke, easily makes main mould and punch die distortion, reduces the life-span of punch die and main mould.In order to extend the life-span of main mould and punch die, prior art adopts the core rod of a sheathed band wolfram steel in the formwork of main mould, and this core rod maintains static, and is placed directly in by product inside it extruded.Although this can solve the problem of distortion to a certain extent, be but easy to cause because punching shakiness hole is trained off when punching, and not dark problem is beaten in hole, causing processing undesirable.
Summary of the invention
The object of the invention is to propose a kind of movable main mold insert structure, effectively can solve to cause because punching shakiness hole is trained off, and not dark problem is beaten in hole.
For reaching this object, the present invention by the following technical solutions:
A kind of movable main mold insert structure, comprise the main formwork be positioned at below punch die, the inner side of described main formwork is arranged with the main core rod that can move downward along the axis of described main formwork, the inner side of described main core rod arranges accommodating hole, workpiece to be punctured to be coaxially arranged in described accommodating hole and to move together with described main core rod, the bottom of described main core rod is provided with the main mould thimble with described aligned in position to be punctured, when described main core rod moves downward, described main mould thimble can be extruded described to be punctured in described accommodating hole.
Wherein, the outside of described main mould thimble is arranged with the elastic support structure that can make its self-return after described main core rod moves downward, and the top of described main mould thimble is higher than described elastic support structure.
Wherein, described elastic support structure comprises the spring housing of the bottom being positioned at described main core rod, the inner side of described spring housing offers the stepped hole coaxial with described accommodating hole, the step surface of described stepped hole is provided with bottom and described step surface to fix and the spring that offsets with the bottom of described main core rod after stretching out described spring housing of top, the top of described main mould thimble is higher than the top of described spring.
Wherein, be inlaid with in described accommodating hole and can move together with described main core rod and have the insert of endoporus, described endoporus is coaxial with described accommodating hole, and described workpiece is coaxially arranged in described endoporus; The top of described spring also offsets with the bottom of described insert simultaneously.
Wherein, the T-shaped shape structure of section of described workpiece, the vertical hypomere of described T-shaped shape structure to stretch in described endoporus and corresponding with described main mould thimble, the top of level and the top of described insert of described T-shaped shape structure offset, and stretch into the degree of depth in described endoporus with the hypomere limiting described workpiece.
Wherein, the outside of described main mould thimble is arranged with discharging cover, and in the process of described main core rod return, described discharging cover moves upward and stretches in described endoporus and upwards pushes up described workpiece, until described workpiece is ejected described endoporus.
Wherein, also comprise the bottom being arranged at described spring housing and the discharging structure matched with described discharging cover, when described workpiece follows described main core rod upwards after return, described discharging structure promotes described discharging cover, so that described workpiece is ejected described endoporus.
Wherein, three thimbles that described discharging structure comprises three needle stands, embeds three pincushions at the top of described three needle stands and offset with described discharging cover after passing described three needle stands and described three pincushions, described three pincushions and described three needle stands are connected by screw, described main mould thimble is fixedly installed from the bottom of described three pincushions through after described three pincushions, and described three thimbles can move up and down under the promotion of the bolt machine of outside.
Wherein, between the inner side of described main formwork and the outside of described main core rod, be provided with position limiting structure, wherein, spacing by ledge structure between the inner side of described main formwork and the outside of described main core rod.
Wherein, the degree of depth that described main mould thimble punches equals the distance that described main core rod moves downward, and the distance that described main core rod moves downward equals the distance between the top of described spring and the top of described spring housing.
Beneficial effect of the present invention is:
The main mold insert structure of activity of the present invention, comprise the main formwork be positioned at below punch die, the inner side of main formwork is arranged with the main core rod that can move downward along the axis of main formwork, the inner side of main core rod arranges accommodating hole, workpiece to be punctured to be coaxially arranged in accommodating hole and to move together with main core rod, the bottom of main core rod is provided with the main mould thimble with aligned in position to be punctured, and when main core rod moves downward, main mould thimble can be extruded to be punctured in accommodating hole, it is when punch die presses down, the workpiece of winner's core rod and its accommodating hole will be made to move downward together, until main core rod moves to and main mould thimble joint, main core rod drive workpiece continue move downward, winner's mould thimble will be made to enter in accommodating hole and hole to be extruded of aliging and to carry out moment cold-heading extruding, realize punching, because workpiece is in accommodating hole, and main mould thimble also carries out extruding punching in accommodating hole, thus its alignment each other will make that workpiece is stable in drill process to be placed, and effectively solve to cause because punching shakiness hole is trained off, and not dark problem is beaten in hole.
Accompanying drawing explanation
Fig. 1 is the original state structural representation of the main mold insert structure of activity of the present invention.
Fig. 2 is the end-state structural representation after the main core rod of the main mold insert structure of activity in Fig. 1 presses down.
In figure: the main formwork of 1-; The main core rod of 2-; The main mould thimble of 3-; 4-discharging cover; 5-spring; 6-spring housing; 7-tri-pincushion; 8-tri-needle stand; 9-tri-thimble; 10-screw; 100-workpiece; 200-punch die shell; 201-punch die thimble; 202-punch die movable block; 203-punch die briquetting; 300-insert.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of movable main mold insert structure, comprise the main formwork 1 be positioned at below punch die, the inner side of main formwork 1 is arranged with the main core rod 2 that can move downward along the axis of main formwork 1, the inner side of main core rod 2 arranges accommodating hole, and workpiece 100 to be punctured to be coaxially arranged in accommodating hole and to move together with main core rod 2, and the bottom of main core rod 2 is provided with the main mould thimble 3 with aligned in position to be punctured, when main core rod 2 moves downward, main mould thimble 3 can be extruded to be punctured in accommodating hole.
This movable main mold insert structure, when punch die presses down, the workpiece 100 of winner's core rod 2 and its accommodating hole will be made to move downward together, until main core rod 2 moves to and main mould thimble 3 joint, main core rod 2 drive workpiece 100 continue move downward, winner's mould thimble 3 will be made to enter in accommodating hole and hole to be extruded of aliging and to carry out moment cold-heading extruding, realize punching, because workpiece 100 is in accommodating hole, and main mould thimble 3 also carries out extruding punching in accommodating hole, thus its alignment each other will make that workpiece is stable in drill process to be placed, and, the degree of depth of punching can drive workpiece 100 drop to determine by main core rod 2, effectively to solve to cause because punching shakiness, hole is trained off, and not dark problem is beaten in hole.
Preferably, the outside of main mould thimble 3 is arranged with the elastic support structure that can make its self-return after main core rod 2 moves downward, and the top of main mould thimble 3 is higher than elastic support structure.Wherein, elastic support structure comprises the spring housing 6 of the bottom being positioned at main core rod 2, the inner side of spring housing 6 offers the stepped hole coaxial with accommodating hole, the step surface of stepped hole is provided with bottom and step surface to fix and the spring 5 that offsets with the bottom of main core rod 2 after stretching out spring housing 6 of top, the top of main mould thimble 3 is higher than the top of spring 5.When original state, utilize the supporting role of spring 5, make the top of winner's core rod 2 concordant with the top of main formwork 1, make its stable placement.After workpiece 100, punch die presses down, main core rod 2 will be extruded, make winner's core rod 2 extrusion spring 5, spring 5 pressurized is shortened, and then main core rod 2 will be slow and stable moves downward, until when spring 5 is compressed to mutually concordant with the top of spring housing 6, main core rod 2 will encounter the top of spring housing 6, and at this moment punch die stops the main core rod 2 of extruding; And after punching terminates, punch die leaves main core rod 2, winner's core rod 2 pressure is disappeared, and thus spring 5 can because the elastic deformation automatic rebounding of self stretches, and then drive main core rod 2 and workpiece 100 to move upward to get back to initial position, in this process, due to the elastic reaction of spring 5, not only play support, also play the effect of buffering and self-return, make whole process operation relatively more steady, and then ensure the precision of punching.
Particularly; in the present embodiment; a kind of cold upsetting die of car, the punch die comprising main mould and be positioned at above main mould, main mould just comprises the parts of main formwork 1 of the present invention and its inside; and this punch die comprises punch die shell 200; the inside bottom of punch die shell 200 is provided with punch die movable block 202, and the top of punch die movable block 202 is provided with punch die briquetting 203, wherein; the inside of punch die movable block 202 is coaxially nested with punch die thimble 201, and punch die thimble 201 is coaxial with workpiece 100.In the punching course of reality, when punch die presses down main mould, punch die movable block 202 directly with the tip contact of main core rod 2, and apply pressure to main core rod 2, winner's core rod 2 is moved down, and this punch die thimble 201 directly will contact the top of workpiece 100, for punching to the top of the workpiece 100 in main core rod 2, and main mould thimble 3 is for punching to the bottom of the workpiece 100 in main core rod 2, a namely punching press, the punching action in upper and lower two orientation can be realized, its efficiency is high, punching accurately, precision is high, and, realize being connected with the stable of workpiece after the 201 pairs of workpiece punchings of punch die thimble, in the process, continue to press down when carrying out bear, make workpiece fixing more firm, be conducive to bear quality.
Certainly, in order to the workpiece 100 making this main core rod 2 can adapt to different size is well processed, be inlaid with in accommodating hole and can move together with main core rod 2 and have the insert 300 of endoporus, endoporus is coaxial with accommodating hole, and workpiece 100 is coaxially arranged in endoporus; The top of spring 5 also offsets with the bottom of insert 300 simultaneously, utilizes different inserts 300 to adapt to the workpiece 100 of different size, thus makes the versatility of this movable main mold insert structure better, reduces production cost.
Preferably, in the present embodiment, the T-shaped shape structure of section of workpiece 100, the vertical hypomere of T-shaped shape structure to stretch in endoporus and corresponding with main mould thimble 3, the top of the level of T-shaped shape structure and the top of insert 300 offset, to ensure that the hypomere of workpiece 100 stretches into the degree of depth in endoporus.The workpiece 100 of this shape can effectively control by the structure of self degree of depth stretching into endoporus, and then controls the degree of depth of punching, improves drilling precision, and strengthens controllability.Certainly, workpiece 100 can not have the top of level yet, as long as can ensure that workpiece 100 stretches into the degree of depth in endoporus, and then ensures that main mould thimble 3 punches the degree of depth.
Automaticity can be improved in use to make this movable main mold insert structure, avoid manual cleaning, strengthen security, in the present embodiment, the outside of main mould thimble 3 is arranged with discharging cover 4, in the process of main core rod 2 return, discharging cover 4 moves upward and stretches in endoporus and upwards pushes up workpiece 100, until workpiece 100 is ejected endoporus.Further, this movable main mold insert structure also comprises the bottom that is arranged at spring housing 6 and overlaps 4 discharging structures matched with discharging, and when workpiece 100 follows main core rod 2 upwards after return, discharging structure promotes discharging cover 4, so that workpiece 100 is ejected endoporus.Wherein, discharging structure comprises three needle stands 8, embeds three pincushions 7 at the top of three needle stands 8 and passes three needle stands 8 and three pincushions 7 are rear and 4 three thimbles 9 offseted are overlapped in discharging, three pincushions 7 are connected by screw 10 with three needle stands 8, main mould thimble 3 is fixedly installed from the bottom of three pincushions 7 through after three pincushions 7, and three thimbles 9 can move up and down under the promotion of the bolt machine of outside.In the present embodiment, the bottom of three thimbles 9 is connected with the liftout attachment of bolt machine.
Wherein, between the inner side of main formwork 1 and the outside of main core rod 2, be provided with position limiting structure, wherein, spacing by ledge structure between the inner side of main formwork 1 and the outside of main core rod 2.Wherein, the degree of depth that main mould thimble 3 punches equals the distance that main core rod 2 moves downward, and the distance that main core rod 2 moves downward equals the distance between the top of spring 5 and the top of spring housing 6.
When this station work of reality, initial position, main core rod 2 flushes with the top end face of main formwork 1, now, spring 5 does not kill and plays the effect supporting main core rod and insert 300, after the punch die of bolt machine presses to and contacts with main core rod 2, promote main core rod 2 to move downward, workpiece 100 is followed insert 300 and is moved downward together with main core rod 2, meanwhile, spring 5 is stressed starts compression, main mould thimble 3 starts to contact with the bottom of workpiece 100, along with workpiece 100 and main core rod 2 continue move downward, main mould thimble 3 starts to carry out taking out hole in the position to be punctured of correspondence, until main core rod 2 cannot continue to move downward after encountering spring housing 6, punch complete, punch die starts the return that moves upward, the elastic force that main core rod 2 is subject to spring 5 moves upward until the step in outside of main core rod 2 is spacing after encountering the step of the inner side of main formwork 1, thus cannot continue to move upward, now concordant state is recovered with main formwork 1 top in the top of main core rod 2, then the effect that three thimbles 9 are subject to the liftout attachment of bolt machine starts to move upward, and then promotion discharging cover 4 moves upward, discharging cover 4 promotes workpiece 100 and moves upward, until workpiece 100 is released main core rod 2, the whole running of this station one is complete, starts next circulation.
In the present embodiment, this main mould have employed movable main mold insert structure, and its assembling process is as follows:
1) main core rod 2 loads in main formwork 1 and makes it flush with the top of main formwork 1;
2) spring 5 is put into spring housing 6 and load main formwork 1 together;
3) main mould thimble 3 and three thimbles 9 are loaded three pincushions 7, three pincushions 7 screw 10 is locked in three needle stands 8, main mould thimble 3 overlaps loading and unloading material cover 4, loads in main formwork 1 together with three needle stands 8.
The main mold insert structure of activity of the present invention, it is compared with traditional structure, punching that can be more stable, and dark hole of can sounding the night watches, concentricity is far smaller than traditional structure.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. the main mold insert structure of activity, comprise the main formwork (1) be positioned at below punch die, it is characterized in that, the inner side of described main formwork (1) is arranged with the main core rod (2) that can move downward along the axis of described main formwork (1), the inner side of described main core rod (2) arranges accommodating hole, workpiece (100) to be punctured to be coaxially arranged in described accommodating hole and to move together with described main core rod (2), the bottom of described main core rod (2) is provided with the main mould thimble (3) with described aligned in position to be punctured, when described main core rod (2) moves downward, described main mould thimble (3) can be extruded described to be punctured in described accommodating hole.
2. the main mold insert structure of activity according to claim 1, it is characterized in that, the outside of described main mould thimble (3) is arranged with the elastic support structure that can make its self-return after described main core rod (2) moves downward, and the top of described main mould thimble (3) is higher than described elastic support structure.
3. the main mold insert structure of activity according to claim 2, it is characterized in that, described elastic support structure comprises the spring housing (6) of the bottom being positioned at described main core rod (2), the inner side of described spring housing (6) offers the stepped hole coaxial with described accommodating hole, the step surface of described stepped hole is provided with bottom and described step surface fixes and the spring (5) that described spring housing (6) offsets with the bottom of described main core rod (2) is afterwards stretched out on top, the top of described main mould thimble (3) is higher than the top of described spring (5).
4. the main mold insert structure of activity according to claim 3, it is characterized in that, be inlaid with in described accommodating hole and can move together with described main core rod (2) and there is the insert (300) of endoporus, described endoporus is coaxial with described accommodating hole, and described workpiece (100) is coaxially arranged in described endoporus; The top of described spring (5) also offsets with the bottom of described insert (300) simultaneously.
5. the main mold insert structure of activity according to claim 4, it is characterized in that, the T-shaped shape structure of section of described workpiece (100), the vertical hypomere of described T-shaped shape structure to stretch in described endoporus and corresponding with described main mould thimble (3), the top of the level of described T-shaped shape structure and the top of described insert (300) offset, and stretch into the degree of depth in described endoporus with the hypomere limiting described workpiece (100).
6. the main mold insert structure of activity according to claim 4, it is characterized in that, the outside of described main mould thimble (3) is arranged with discharging cover (4), in the process of described main core rod (2) return, described discharging cover (4) moves upward and stretches in described endoporus and upwards pushes up described workpiece (100), until described workpiece (100) is ejected described endoporus.
7. the main mold insert structure of activity according to claim 6, it is characterized in that, also comprise the bottom being arranged at described spring housing (6) and the discharging structure matched with described discharging cover (4), when described workpiece (100) follows described main core rod (2) upwards after return, described discharging structure promotes described discharging cover (4), so that described workpiece (100) is ejected described endoporus.
8. the main mold insert structure of activity according to claim 7, it is characterized in that, described discharging structure comprises three needle stands (8), embed three pincushions (7) at the top of described three needle stands (8), and through three thimbles (9) that described three needle stands (8) and described three pincushions (7) offset with described discharging cover (4) afterwards, described three pincushions (7) are connected by screw (10) with described three needle stands (8), described main mould thimble (3) is fixedly installed from the bottom of described three pincushions (7) through after described three pincushions (7), described three thimbles (9) can move up and down under the promotion of the bolt machine of outside.
9. the main mold insert structure of activity according to claim 1, it is characterized in that, position limiting structure is provided with between the inner side of described main formwork (1) and the outside of described main core rod (2), wherein, spacing by ledge structure between the inner side of described main formwork (1) and the outside of described main core rod (2).
10. the main mold insert structure of activity according to claim 3, it is characterized in that, the degree of depth that described main mould thimble (3) is punched equals the distance that described main core rod (2) moves downward, and the distance that described main core rod (2) moves downward equals the distance between the top of described spring (5) and the top of described spring housing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513158.9A CN104368740A (en) | 2014-09-29 | 2014-09-29 | Movable main mold core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513158.9A CN104368740A (en) | 2014-09-29 | 2014-09-29 | Movable main mold core structure |
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| Publication Number | Publication Date |
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| CN104368740A true CN104368740A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410513158.9A Pending CN104368740A (en) | 2014-09-29 | 2014-09-29 | Movable main mold core structure |
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| CN (1) | CN104368740A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290300A (en) * | 2015-11-12 | 2016-02-03 | 苏州工业园区新凯精密五金有限公司 | Cold heading process of chassis eccentric nut and mold structure for forming special-shaped hole |
| CN112517831A (en) * | 2020-11-18 | 2021-03-19 | 嘉善宝岛模具厂(普通合伙) | Guide pin cold heading processing technology |
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| JP2002224785A (en) * | 2001-02-02 | 2002-08-13 | Sakamura Sangyo Kk | Multiple heading and forming machine |
| CN201979033U (en) * | 2010-03-30 | 2011-09-21 | 日泰（上海）汽车标准件有限公司 | Screw bolt mold for filter |
| CN202951819U (en) * | 2012-08-13 | 2013-05-29 | 苏州工业园区新凯精密五金有限公司 | Post-positioned spring sliding mold structure |
| CN203751219U (en) * | 2014-03-24 | 2014-08-06 | 苏州工业园区新凯精密五金有限公司 | Sleeve forming die structure for vehicle |
| CN204194693U (en) * | 2014-09-29 | 2015-03-11 | 太仓一标精密模具有限公司 | A kind of movable main mold insert structure |
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2014
- 2014-09-29 CN CN201410513158.9A patent/CN104368740A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224785A (en) * | 2001-02-02 | 2002-08-13 | Sakamura Sangyo Kk | Multiple heading and forming machine |
| CN201979033U (en) * | 2010-03-30 | 2011-09-21 | 日泰（上海）汽车标准件有限公司 | Screw bolt mold for filter |
| CN202951819U (en) * | 2012-08-13 | 2013-05-29 | 苏州工业园区新凯精密五金有限公司 | Post-positioned spring sliding mold structure |
| CN203751219U (en) * | 2014-03-24 | 2014-08-06 | 苏州工业园区新凯精密五金有限公司 | Sleeve forming die structure for vehicle |
| CN204194693U (en) * | 2014-09-29 | 2015-03-11 | 太仓一标精密模具有限公司 | A kind of movable main mold insert structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290300A (en) * | 2015-11-12 | 2016-02-03 | 苏州工业园区新凯精密五金有限公司 | Cold heading process of chassis eccentric nut and mold structure for forming special-shaped hole |
| CN112517831A (en) * | 2020-11-18 | 2021-03-19 | 嘉善宝岛模具厂(普通合伙) | Guide pin cold heading processing technology |
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Application publication date: 20150225 |