CN106513501A - Composite die for trimming and piercing of forgings - Google Patents
Composite die for trimming and piercing of forgings Download PDFInfo
- Publication number
- CN106513501A CN106513501A CN201610867149.9A CN201610867149A CN106513501A CN 106513501 A CN106513501 A CN 106513501A CN 201610867149 A CN201610867149 A CN 201610867149A CN 106513501 A CN106513501 A CN 106513501A
- Authority
- CN
- China
- Prior art keywords
- trimming
- punching
- punch
- die
- forging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009966 trimming Methods 0.000 title claims abstract description 42
- 238000005242 forging Methods 0.000 title claims abstract description 38
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims abstract 2
- 238000004080 punching Methods 0.000 claims description 60
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 244000137852 Petrea volubilis Species 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000003754 machining Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 19
- 238000009434 installation Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000003303 reheating Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Provided is a composite die for trimming and piercing of forgings. The composite die is used for synchronous machining of trimming and piercing of perforated forgings formed by forging. The composite die comprises a base; the base is provided with a fixedly-connected female die holder and a rotationally-connected piercing punch; the female die holder is detachably connected with a female die used for cutting off flashes of the outer walls of the perforated forgings; an elastic gasket is arranged below the base; a plurality of guide through holes are formed in the base; the elastic gasket is provided with an ejector rod in sliding connection with the guide through holes; the ejector rod is connected with a supporting plate, and the supporting plate can slide on the outer side of the piercing punch in the axis direction of the piercing punch and is used for supporting the perforated forgings; the female die is detachably connected with a scraper blade; and a trimming punch in sliding connection with the scraper blade is arranged above the female die. The composite die for trimming and piercing of the forgings reduces the manufacturing cost and improves the production efficiency.
Description
Technical Field
The invention relates to the technical field of forging, in particular to a composite die for performing trimming and punching treatment on a forging piece at one time in the forging piece forming process.
Background
In the die forging forming process of the forge piece, flash is often generated, so that the flash needs to be removed through a trimming procedure after the forge forming. Fig. 1 is a schematic structural diagram of a perforated forged part, as shown in fig. 1, after forging, the perforated forged part 1 will have flash 11 which needs to be cut off later, and the periphery of an inner hole 12 will usually have a connecting skin (not shown in the figure), so that the flash needs to be removed by a punching process, and after punching, the inner wall of the inner hole 12 will usually have residual burrs and needs to be cleaned by grinding. The existing forging process has the advantages that the trimming and punching processes are independently carried out, and the trimming and punching of the forge piece need to be carried out in a hot state, so that a remelting and heating process needs to be added between the trimming and punching processes, but the deburring needs to be carried out after the forge piece is cooled. Therefore, the existing forging forming process route aiming at the flash and punching connected skin is as follows: swaging → trimming → heating → punching → lathing. The process route has the defects of long production period, need of assembling and disassembling the die for many times, low labor efficiency and the like. In addition, repeated heating of the forging may affect the forging structure, so that certain quality hidden troubles may exist.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a composite die for trimming and punching forgings, so as to reduce or avoid the problems mentioned above.
In order to solve the technical problems, the invention provides a composite die for trimming and punching a forge piece, which is used for synchronously processing trimming and punching of a forged piece with a hole, comprises a base, the base is provided with a fixedly connected female die seat and a rotatably connected punching punch, the female die holder is detachably connected with a female die used for cutting off the flash on the outer wall of the forged piece with the hole, an elastic pad is arranged below the base, the base is provided with a plurality of guide through holes, the elastic pad is provided with a mandril which is connected with the guide through holes in a sliding way, the ejector rod is connected with a supporting plate which can slide along the axial direction of the punching punch outside the punching punch and is used for supporting the forged piece with the hole, the female die is detachably connected with a scraper, and a trimming punch slidably connected with the scraper is arranged above the female die.
Preferably, the elastic cushion is a hydraulic mechanism or a pneumatic mechanism connected with the supporting plate.
Preferably, the punch is connected to a motor by a belt.
Preferably, the female die holder is of a concave structure.
Preferably, the base is provided with a mounting seat.
Preferably, the punching punch is provided with a ring groove, an elastic belt is arranged in the ring groove, and a grinding belt is arranged on the elastic belt.
Preferably, the elastic band is a rubber band.
Preferably, the sanding belt is an endless grinding wheel or sandpaper.
Preferably, the side wall of the punching punch is provided with at least one cutter groove which is consistent with the axial direction of the punching punch, and a turning tool or a scraping tool which is connected through a spring is arranged in the cutter groove.
According to the composite die for trimming and punching the forged piece, the trimming and punching processes of the forged piece with the hole are changed from separate to simultaneous operation, the intermediate reheating process is cancelled, the die can be installed once to complete the two processes of trimming and punching, the manufacturing cost of the tool is reduced, repeated installation is avoided, the production efficiency is improved, the production cost is saved, and the quality of the forged piece is ensured. In addition, in the punching process, the burrs of the inner hole are simultaneously processed, so that the subsequent turning procedure can be omitted, the labor time is greatly saved, and the labor intensity is reduced.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic structural view of a perforated forging;
FIG. 2 is a schematic structural diagram of a composite die for trimming and punching a forged piece according to an embodiment of the invention;
fig. 3 is a partial sectional structural schematic view of the punch of fig. 2.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
FIG. 1 is a schematic structural view of a perforated forging; fig. 2 is a schematic structural diagram of a composite die for trimming and punching a forged piece according to an embodiment of the invention. Referring to fig. 1-2, the invention provides a composite die for trimming and punching forged pieces, which is used for synchronously trimming and punching forged and formed perforated forged pieces 1, and comprises a base 2, wherein the base 2 is provided with a fixedly connected female die holder 3 and a rotatably connected punching punch 4, the female die holder 3 is detachably connected with a female die 31 for cutting off flash 11 on the outer wall of the perforated forged piece 1, an elastic cushion 5 is arranged below the base 2, the base 2 is provided with a plurality of guide through holes, the elastic cushion 5 is provided with a mandril 51 which is slidably connected with the guide through holes, the mandril 51 is connected with a support plate 52 which can slide along the axial direction of the punching punch 4 outside the punching punch 4 and is used for supporting the perforated forged piece 1, and the female die 31 is detachably connected with a scraper 32, a trimming punch 6 slidably connected with the scraper 32 is arranged above the female die 31.
The working principle of the composite die for trimming and punching the forge piece provided by the invention is as follows: after the forging of the perforated forging 1, the hot perforated forging 1 (shown by dotted lines in fig. 2) is placed on the supporting plate 52 and placed in the cavity of the female die 31, so that the supporting plate 52 and the female die 31 can provide positioning support for the perforated forging 1. The trimming punch 6 moves downwards under the driving of a press (such as a crank press), and the trimming punch 6 pushes the perforated forged piece 1 and the support plate 52 to move downwards, so that the trimming action of the perforated forged piece 1 can be completed by using the cutting edge of the female die 31.
In the downward movement process of the forging piece with holes 1 and the support plate 52, after the punching punch 4 is contacted with the forging piece with holes 1, the punching action can be completed by utilizing the cutting edge of the punching punch 4.
After reaching the lower dead point, the trimming punch 6 can be moved upwards by a press (e.g. a crank press), and the scraper 32 can separate the cut-off flash 11 stuck on the trimming punch 6.
After the punching action of the punching punch 4 is completed, the elastic pad 5 drives the hole-containing forge piece 1 and the support plate 52 to upwards reset through the ejector rod 51, at the moment, the punching punch 4 is rotated, and the outer wall of the punching punch 4 can polish and remove residual burrs in the inner hole of the hole-containing forge piece 1. When the forged piece with holes 1 and the support plate 52 move upwards to the initial position, the rotation of the punching punch 4 can be stopped. Thereby finishing one-time trimming and punching operation.
The elastic pad 5 may be a hydraulic mechanism (e.g., a hydraulic jack) or a pneumatic mechanism with a pallet attached thereto. This provides good control of the travel of the support plate 52 and provides sufficient support.
The punch head 4 may be connected to a motor (not shown) via a belt, which makes it relatively easy to control the parameters of the rotary motion and the rotational speed of the punch head 4. Of course, in order to enable the punching punch 4 to be conveniently connected with an external motor or the like, the female die holder 3 may be provided with a hole on a side wall thereof so as to reserve a sufficient installation space.
In a preferred embodiment, the female die holder 3 may not be ring-shaped, but rather may have a concave structure, that is, one side wall of the female die holder 3 has an open structure, so that a sufficient installation space for connecting the punching punch 4 with external equipment is ensured, and the female die 31 is conveniently installed and arranged.
In order to facilitate processing of different hole-containing forgings 1, the base 2 can be provided with an installation seat 21 to be connected with the punching punch 4, so that the rotating structure can be arranged on the installation seat 21, and when the punching punch 4 needs to be replaced or the rotating structure needs to be maintained, the installation seat 21 is detached, so that the whole device is modularized, and maintenance and replacement are facilitated.
In a preferred embodiment, the drive means for rotating the punch 4 may also be powered by means of a drive gear train.
Fig. 3 is a partial sectional structural view of the punch of fig. 2, and referring to fig. 3, in a preferred embodiment, in order to further ensure the grinding effect of the punch 4 on burrs, the punch 4 may be provided with a ring groove 41, an elastic band 42 is arranged in the ring groove 41, and a grinding band 43 is arranged on the elastic band 42. The elastic band 42 may be a rubber band or other elastic material, and the polishing band 43 may be an annular polishing wheel composed of a plurality of polishing wheels bonded to the elastic band 42, or may be a sand paper bonded to the elastic band 42. In the punching process, the grinding belt 43 is extruded into the annular groove 41, the punching punch 4 rotates right when the inner hole burr of the hole-containing forge piece 1 is ground, the grinding belt 43 is attached to the inner hole of the hole-containing forge piece 1 under the action of the elastic belt 42, and therefore the grinding effect on the burr can be guaranteed.
In another preferred embodiment, the piercing punch 4 can also eliminate burrs by turning, that is, at least one knife slot in accordance with the axial direction of the piercing punch 4 can be formed in the side wall of the piercing punch 4, and a turning tool or a scraping tool connected through a spring can be arranged in the knife slot, so that the turning tool or the scraping tool is pressed into the knife slot during the piercing process, and when the piercing punch 4 rotates to grind the inner hole burrs of the perforated forged piece 1, the turning tool or the scraping tool can cling to the inner hole of the perforated forged piece 1 under the action of the spring, thereby turning the burrs and ensuring the grinding effect.
According to the composite die for trimming and punching the forged piece, the trimming and punching processes of the forged piece with the hole are changed from separate to simultaneous operation, the intermediate reheating process is cancelled, the die can be installed once to complete the two processes of trimming and punching, the manufacturing cost of the tool is reduced, repeated installation is avoided, the production efficiency is improved, the production cost is saved, and the quality of the forged piece is ensured. In addition, in the punching process, the burrs of the inner hole are simultaneously processed, so that the subsequent turning procedure can be omitted, the labor time is greatly saved, and the labor intensity is reduced.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (9)
1. The utility model provides a compound mould for forging side cut punches a hole, its characterized in that, it is used for cutting edge the synchronous processing who punches a hole to the foraminiferous forging that forges the shaping, and it includes a base, the base is provided with a fixed connection's bed die seat, a rotatable coupling's drift that punches a hole, the bed die seat can be dismantled and be connected with and be used for carrying out the bed die that excises to the overlap of foraminiferous forging outer wall, the base below is provided with the cushion, the base is provided with a plurality of direction through-holes, the cushion be provided with but guide through-hole sliding connection's ejector pin, the ejector pin is connected with can follow in the drift that punches a hole the axis direction is gliding be used for supporting foraminiferous forging in the drift outside, the bed die can be dismantled and be connected with the scraper blade.
2. The composite die for trimming and punching forgings according to claim 1, wherein the elastic pad is a hydraulic or pneumatic mechanism connected with a supporting plate.
3. The composite die for trimming and punching forgings according to claim 1, wherein the punch punches are connected to a motor by a belt.
4. The composite die for trimming and punching forgings according to claim 1, wherein the female die holder is of a concave configuration.
5. The composite die for trimming and punching forgings as claimed in claim 1, wherein said base is provided with a mounting seat.
6. The composite die for trimming and punching forgings according to claim 1, wherein the punching punch is provided with a ring groove, an elastic belt is arranged in the ring groove, and a grinding belt is arranged on the elastic belt.
7. The composite die for forging trimming and punching of claim 6, wherein the elastic band is a rubber band.
8. The composite die for forging trimming and punching of claim 6, wherein the grinding belt is a grinding wheel or a sand paper.
9. The composite die for trimming and punching forgings as claimed in claim 1, wherein the side wall of the punching punch is provided with at least one knife slot which is consistent with the axial direction of the punching punch, and a turning tool or a scraping knife which is connected through a spring is arranged in the knife slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867149.9A CN106513501B (en) | 2016-09-30 | 2016-09-30 | Composite die for forging edge-cutting and hole-punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867149.9A CN106513501B (en) | 2016-09-30 | 2016-09-30 | Composite die for forging edge-cutting and hole-punching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106513501A true CN106513501A (en) | 2017-03-22 |
| CN106513501B CN106513501B (en) | 2019-03-01 |
Family
ID=58344593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610867149.9A Active CN106513501B (en) | 2016-09-30 | 2016-09-30 | Composite die for forging edge-cutting and hole-punching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106513501B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719202A (en) * | 2020-12-08 | 2021-04-30 | 山西豪钢重工股份有限公司 | Integral forging and forming process for mining chain wheel |
| CN113828683A (en) * | 2021-08-26 | 2021-12-24 | 浙江华远汽车科技股份有限公司 | Forming device and forming method for part with hole |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU880601A1 (en) * | 1980-02-29 | 1981-11-15 | Ижевский механический институт | Compound die |
| CN102029323A (en) * | 2009-09-29 | 2011-04-27 | 中煤张家口煤矿机械有限责任公司 | Ring forge piece punching and cutting composite type mould |
| US20110227246A1 (en) * | 2008-11-26 | 2011-09-22 | Toyota Jidosha Kabushiki Kaisha | Bur removing punch pin, bur removing apparatus and bur removing method |
| CN202070674U (en) * | 2011-05-09 | 2011-12-14 | 湖北省三胜工程机械有限公司 | Reverse cutting and punching composite die for rail chain link |
| CN103480730A (en) * | 2012-06-13 | 2014-01-01 | 江苏龙城精锻有限公司 | Claw pole red trimming and punching compound die frame |
| CN103624155A (en) * | 2013-11-06 | 2014-03-12 | 中国北车集团大连机车车辆有限公司 | Trimming, punching and shaping combined die for forging |
| CN105328006A (en) * | 2015-11-28 | 2016-02-17 | 孙新梅 | Punching device with burr removal function and crack detection function |
-
2016
- 2016-09-30 CN CN201610867149.9A patent/CN106513501B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU880601A1 (en) * | 1980-02-29 | 1981-11-15 | Ижевский механический институт | Compound die |
| US20110227246A1 (en) * | 2008-11-26 | 2011-09-22 | Toyota Jidosha Kabushiki Kaisha | Bur removing punch pin, bur removing apparatus and bur removing method |
| CN102029323A (en) * | 2009-09-29 | 2011-04-27 | 中煤张家口煤矿机械有限责任公司 | Ring forge piece punching and cutting composite type mould |
| CN202070674U (en) * | 2011-05-09 | 2011-12-14 | 湖北省三胜工程机械有限公司 | Reverse cutting and punching composite die for rail chain link |
| CN103480730A (en) * | 2012-06-13 | 2014-01-01 | 江苏龙城精锻有限公司 | Claw pole red trimming and punching compound die frame |
| CN103624155A (en) * | 2013-11-06 | 2014-03-12 | 中国北车集团大连机车车辆有限公司 | Trimming, punching and shaping combined die for forging |
| CN105328006A (en) * | 2015-11-28 | 2016-02-17 | 孙新梅 | Punching device with burr removal function and crack detection function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719202A (en) * | 2020-12-08 | 2021-04-30 | 山西豪钢重工股份有限公司 | Integral forging and forming process for mining chain wheel |
| CN112719202B (en) * | 2020-12-08 | 2023-02-21 | 山西豪钢重工股份有限公司 | Integral forging and forming process for mining chain wheel |
| CN113828683A (en) * | 2021-08-26 | 2021-12-24 | 浙江华远汽车科技股份有限公司 | Forming device and forming method for part with hole |
| CN113828683B (en) * | 2021-08-26 | 2024-04-30 | 浙江华远汽车科技股份有限公司 | Forming device and forming method for parts with holes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106513501B (en) | 2019-03-01 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
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