CN116511332A - Double-fillet burr-free blanking device for section of chain sheet - Google Patents
Double-fillet burr-free blanking device for section of chain sheet Download PDFInfo
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- CN116511332A CN116511332A CN202310654791.9A CN202310654791A CN116511332A CN 116511332 A CN116511332 A CN 116511332A CN 202310654791 A CN202310654791 A CN 202310654791A CN 116511332 A CN116511332 A CN 116511332A
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- 238000004080 punching Methods 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000000750 progressive effect Effects 0.000 claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 50
- 238000007599 discharging Methods 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 25
- 230000000670 limiting effect Effects 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 238000013016 damping Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model provides a chain link section double round angle burr-free blanking device, relates to blanking progressive die technical field, including progressive die body, progressive die body include mould and lower mould, the material area passes from between mould and the lower mould, follows the passageway that the material area marred from left to right and is equipped with in proper order: a coarse punching station, a pilot station I, a pre-punching station, a fine punching station, a pilot station II and a blanking station; the pre-punching station is used for punching a first round corner belt at the edge of the upper end of a pre-punched part, and the blanking station is used for blanking a second round corner belt at the edge of the lower end of a blanking part during blanking. The invention provides a double-fillet burr-free blanking device for a chain sheet section of a chain, and aims to overcome the technical bias of blanking of a chain plate of an existing progressive die, and design the outline of the chain sheet for blanking twice. The first time is to pre-punch the material to a certain depth to make the material generate plastic deformation to generate a first fillet band at the cutting edge, and the second time is to punch the second fillet band in the opposite direction and to blank.
Description
Technical Field
The invention relates to the technical field of blanking progressive dies, in particular to a double-fillet burr-free blanking device for a section of a chain sheet.
Background
In the manufacturing process of the roller chain, the inner and outer chain piece parts are processed by a blanking process, the blanking quality of the parts of the chain piece serving as a carrier part of the chain directly influences the appearance quality of the chain, and the method is specifically characterized in that:
1. after the roller chain sheet is stamped, four fault forms of a fillet belt, a bright belt, a fracture belt and a burr zone are sequentially formed at the profile section of the chain sheet. However, the conventional progressive die chain sheet blanking is mostly one-time blanking, and the appearance of the section of the workpiece is improved by adopting a mode of adjusting blanking gaps, so that the defects of the section and the generation of burrs cannot be fundamentally solved.
2. If the surface of the blanking fracture belt is uneven or secondary tearing occurs, corresponding surface treatment is needed when burrs with larger range appear on the edges of the workpiece, and the manufacturing cost of the product can be increased.
3. The material property has a large influence on the section of the workpiece, and under the condition, the consistency of the section of the chain sheet cannot be ensured by the existing blanking technology, so that the assembly precision of the chain is influenced.
Disclosure of Invention
The invention provides a double-fillet burr-free blanking device for a chain sheet section of a chain, and aims to overcome the technical bias of blanking of a chain plate of an existing progressive die, and design the outline of the chain sheet for blanking twice. The first time is to pre-punch the material to a certain depth to make the material generate plastic deformation to generate a first fillet band at the cutting edge, and the second time is to punch the second fillet band in the opposite direction and to blank.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a chain link section double round angle burr-free blanking device, includes the progressive die body, the progressive die body include mould and lower mould, the material area passes from last mould and lower mould between, follows the passageway that the material area marred and from left to right and is equipped with in proper order: a coarse punching station, a pilot station I, a pre-punching station, a fine punching station, a pilot station II and a blanking station; the pre-punching station is used for punching a first round corner belt at the edge of the upper end of a pre-punched part, and the blanking station is used for blanking a second round corner belt at the edge of the lower end of a blanking part during blanking.
Preferably, the upper die comprises an upper die seat and a fixed plate connected to the lower end of the upper die seat, wherein the lower end of the fixed plate is provided with an upper stripper plate I, an upper concave die plate and an upper stripper plate II from left to right in parallel; the lower die comprises a lower die seat, a lower die base plate connected to the upper end of the lower die seat, a first lower die plate, a lower stripper plate and a second lower die plate, wherein the first lower die plate, the second lower stripper plate and the second lower die plate are arranged at the upper end of the lower die base plate in parallel along the left-right direction; the first lower concave die plate is opposite to the first upper discharging plate from top to bottom, and a rough punching station and a guide station I are sequentially formed between the first upper discharging plate and the first lower concave die plate; the upper concave die plate is opposite to the lower stripper plate up and down, and a pre-punching station is formed between the upper concave die plate and the lower stripper plate; the second upper stripper plate is opposite to the second lower die plate in an up-down manner, and a fine punching station, a second guide station and a blanking station are formed between the second upper stripper plate and the second lower die plate;
the fixed plate, the upper concave die plate and the lower end face of the upper die holder are fixedly connected through bolts, the first upper unloading plate and the upper unloading plate are respectively connected with the lower die holder 6 through unloading plate guide posts 14 penetrating through the first lower concave die plate 4 or the lower concave die plate 26 and the lower concave die backing plate, the lower unloading plate is connected with the lower concave die backing plate through unloading plate guide posts, and the first lower concave die plate, the second lower concave die plate and the lower concave die backing plate are fixedly connected with the lower die holder through bolts.
Preferably, a vibration damping buffer mechanism is further arranged between the upper die and the lower die, the vibration damping buffer mechanism comprises a supporting rod, a first mounting groove, a second mounting groove, a first limiting block, a second limiting block, a first spring and a second spring, the supporting rod longitudinally penetrates through the first upper stripper plate or the second upper stripper plate, the first limiting block and the second limiting block are arranged at the upper and lower parts of the supporting rod, the bottom end of the first limiting block is attached to the upper surface of the first upper stripper plate or the second upper stripper plate, the top end of the second limiting block is attached to the lower surface of the first upper stripper plate or the second upper stripper plate, the first mounting groove penetrates through the fixing plate and the upper die seat, the first spring is arranged at the lower part in the first mounting groove, the top end of the first limiting block is connected with the lower end of the first spring, and the second spring can enter the first mounting groove when the first spring is extruded, the second concave die plate or the second concave die plate is vertically opposite to the first mounting groove, the second mounting groove is arranged at the position vertically opposite to the first mounting groove, the second concave die plate or the second concave die plate is inserted into the second die plate, the second concave plate is connected with the top end of the second spring, and the second concave plate is arranged at the bottom end of the second concave plate, and the second concave plate is positioned at the bottom end of the concave plate; the second concave template and the second upper unloading plate are separated from each other.
Preferably, the coarse punching station comprises a coarse punching nail, the bottom of the coarse punching nail is fixedly connected with the fixed plate, and the top of the coarse punching nail longitudinally and slidably penetrates through the lower surface of the first upper discharging plate; the guide station I comprises guide nails, the bottoms of the guide nails are fixedly connected with the fixing plate, and the tops of the guide nails longitudinally and slidably penetrate through the lower surface of the upper discharging plate I.
Preferably, the pre-punching station comprises an upper female die and a pre-punching punch which are positioned on an upper female die plate, a jacking device is arranged in the upper female die, the top end of the jacking device is slidably penetrated through a fixed plate and is connected with a jacking nitrogen spring embedded in an upper die seat, the top of the jacking nitrogen spring is provided with a flange plate, the flange plate is fixedly connected with the upper die seat through a bolt, the jacking nitrogen spring is connected with a balance nitrogen spring through a high-pressure pipeline to form a management system with the same pressure, the high-pressure pipeline is also connected with an anti-vibration pressure gauge, the balance nitrogen spring is arranged in the upper die seat, a tightening bolt is arranged on the outer side of a balance nitrogen spring compression rod, and the pressure of the jacking nitrogen spring output at the top end of the jacking device is changed by adjusting the pressure of the tightening bolt to increase or decrease the system; the lower end of the ejector is used for pressing and leveling the pre-punched part; the upper surface of die holder still be equipped with first mounting hole, first mounting hole in be equipped with rectangle coil spring one, rectangle coil spring one top be connected with guide pillar one, guide pillar one slidable pass lower die backing plate and with lower stripper fixed connection, under the die sinking state, the lower surface of lower stripper breaks away from each other with the upper surface of lower die backing plate, the upper end of pre-punching drift and the upper surface fixed connection of lower die backing plate, the upper end is along the upper surface of vertically slidable run through lower stripper, the blade of upper die be used for shaping first fillet area.
Preferably, the fine punching station comprises a fine punching nail, the bottom of the fine punching nail is fixedly connected with the fixed plate, and the top of the fine punching nail longitudinally and slidably penetrates through the lower surface of the upper discharging plate II; the second guide station comprises guide nails, the bottoms of the guide nails are fixedly connected with the fixing plate, and the tops of the guide nails longitudinally and slidably penetrate through the lower surface of the second upper discharge plate.
Preferably, the blanking station comprises a blanking punch, the upper end of the blanking punch is fixedly connected with the lower surface of the fixed plate, and the lower end of the blanking punch longitudinally penetrates through the lower surface of the upper discharging plate II in a sliding manner; the lower surface of the upper die holder is also provided with a second mounting hole, the mounting Kong Erna is provided with a second rectangular spiral spring, the bottom end of the second rectangular spiral spring is connected with a pressing rod, the pressing rod can slidably penetrate through the fixed plate and is fixedly connected with the second upper discharge plate, and the upper surface of the second upper discharge plate is separated from the lower surface of the fixed plate in a die opening state; a blanking hole is formed in the lower die below the blanking punch, the shape and the size of the blanking hole are matched with those of the formed chain piece, the upper end of the blanking hole is opened on the upper surface of the lower female die plate II, the lower end of the blanking hole penetrates through the lower female die base plate and the lower die holder, and a blanking piece outlet is formed in the lower surface of the lower die holder; the top of blanking hole be equipped with the blanking punch die that uses with blanking punch cooperation, the blanking punch inside be equipped with and hold the chamber, hold the chamber and be connected with the cooling lubrication medium feeding mechanism under the pressure condition, the lateral wall middle part of blanking punch around axis evenly distributed have a plurality of orifices, in blanking process, feeding mechanism lubricates and cools off the blade department that the blanking punch die was gone into to the direct pump of orifice with cooling lubrication medium, dashes off the blanking material that bonds on the blanking punch simultaneously, the blade of blanking punch die be used for shaping second fillet area.
The double-fillet burr-free blanking device for the section of the chain sheet has the following beneficial effects:
the invention can effectively solve the problems of the bulge and the burr of the section of the chain sheet part during punching, and the chain sheet hole is designed to be roughly punched and finely punched, so that the stability of the product Kong Guangliang belt and the smoothness of the hole edge are ensured. And a pre-punching punch head is arranged in the die body, the pre-punching punch head extrudes the material belt and generates a first fillet belt at the cutting edge of the upper die plate, and a lifter leveling device is arranged above the pre-punching station to ensure the flatness of the chain piece. The workpiece is separated from the workpiece under the action of the blanking punch and the blanking punch die at the blanking station, and a second fillet belt is generated on the contour of the lower edge of the blanking workpiece. As described above, the invention solves the problem of inconsistent blanking sections of the chain sheet workpieces, realizes the burr-free blanking of the workpieces, meets the appearance quality requirements of the chain sheet workpieces, omits the surface treatment process of the parts, and realizes the cost reduction and synergy of production.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the structure of the invention in the A-A direction;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4, a partial block diagram at B of the present invention;
FIG. 5, a partial block diagram of the present invention at C;
FIG. 6 is a diagram of a chain sheet blanking pattern according to the present invention;
FIG. 7 is a graph comparing the punching effect of a prior art chain sheet and the chain sheet of the present invention;
fig. 8 is a schematic diagram of the working principle of the invention, wherein the upper left part is a schematic diagram of a pre-punching station, and the upper right part is a schematic diagram of a blanking station; the lower diagram is a schematic diagram of the whole blanking process of the material belt;
FIG. 9 is a schematic diagram of a management system with the same pressure formed by connecting a top material nitrogen spring with a balance nitrogen spring through a high-pressure pipeline;
001. breaking the belt; 002. round angle belt; 003. a burr belt; 004. a first rounded band; 005. a second rounded band; 006. the displacement direction of the pre-punching head; 007. the displacement direction of the blanking punch; 01: material belt, 02: coarse punching station, 03, pilot station one, 04: pre-punching station, 05: fine punching station, 06: guide station two, 07: blanking station, 1: upper die base, 2: fixing plate, 3: go up stripper one, 4: lower die plate one, 5: lower die backing plate, 6: lower die holder, 7: m30 fastening bolt, 8: go up stripper two, 9: lower stripper, 10: upper die plate, 11: shock-resistant pressure gauge, 12: fastening bolts, 13: pre-punching punch, 14: stripper plate guide post, 15: coarse punching nails, 16: buoyancy pin, 17: guide pin, 18: balance nitrogen spring, 19: ejector nitrogen spring, 20: ejector, 21: rectangular coil spring one, 22: pressure detection sensor, 23: high pressure line, 24: pre-punched part, 25: guide posts one, 26: lower die plate two, 27: blanking a workpiece; 28. an outer guide post; 29. a second mounting groove; 30. a second spring; 31. tightening a nut; 32. a support rod; 33. a first mounting groove; 34. a first spring; 35. a second limiting block; 36. a first limiting block; 37. blanking punch.
Detailed Description
The following detailed description of the embodiments of the present invention in a stepwise manner is provided merely as a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that, the positional or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, and specific orientation configuration and operation, and thus should not be construed as limiting the present invention.
For convenience of description, the invention uses the travelling direction of the material belt as the right, and the left is opposite to the travelling direction of the material belt.
Example 1
The utility model provides a chain link section double round angle burr-free blanking device, as shown in fig. 1, 6, includes progressive die body, progressive die body include mould and lower mould, material area 01 passes from last mould and lower mould between, follows the passageway that the material area marred and from left to right and is equipped with in proper order: a coarse punching station 02, a pilot station I03, a pre-punching station 04, a fine punching station 05, a pilot station II 06 and a blanking station 07; the pre-punching station 04 is used for punching a first round-corner strip 004 at the upper end edge of the pre-punched piece 24, and the blanking station 07 is used for punching a second round-corner strip 005 at the lower end edge of the blanking piece 27 while blanking.
This example provides the most basic structure of the present invention in which a rough punching station and a finish punching station are used to punch a link plate hole, raise the link plate hole bright band by rough punching and finish punching, and suppress the generation of hole burrs. The first guide station and the second guide station are common means in the prior art, and accurate positioning of the material belt is realized through cooperation of the guide nails and the punched chain plate holes. The invention is not described in the prior art, and is not described in detail herein.
The chain sheet contour blanking in the invention is realized through a pre-blanking station and a blanking station, and specifically comprises the following steps:
in the pre-punching station, the pre-punching head 13 applies a punching force from the lower surface of the material belt 01 and combines with the cutting edge contour of the upper concave template 10 to make the upper surface of the material belt 01 plastically deform, so as to generate a first fillet belt 004 around the upper end edge of the pre-punched piece 24. In the blanking station 07, a blanking force in the opposite direction to the pre-punching station is applied to the pre-punching piece 24 on the upper surface of the material belt 01 through the blanking punch 37, the chain piece is separated from the material belt 01 by combining the blanking punch die cutting edge profile of the lower die plate II 26, and the blanking station 07 is used for extruding a second fillet belt 005 under the stress on the lower surface of the blanking piece 27 while blanking is finished.
The invention improves the contour blanking of the workpiece into two-step reverse blanking, and makes the upper and lower surfaces of the workpiece generate double collapse angles by virtue of the two-step reverse blanking, thereby ensuring that the two surfaces of the workpiece are consistent, inhibiting the generation of contour burrs of the workpiece, and the combination mode changes the long-term technical bias and overcomes the defects of the prior art.
Example 2
The implementation is an improvement on the basis of example 1, specifically:
as shown in fig. 1-9, the upper die comprises an upper die holder 1 and a fixed plate 2 connected to the lower end of the upper die holder 1, wherein an upper stripper plate I3, an upper concave die plate 10 and an upper stripper plate II 8 are arranged at the lower end of the fixed plate 2 side by side along the left-right direction; the lower die comprises a lower die holder 6, a lower die base plate 5 connected to the upper end of the lower die holder 6, a first lower die plate 4, a lower stripper 9 and a second lower die plate 26 which are arranged at the upper end of the lower die base plate 5 in a side-by-side manner; the first concave template 4 is opposite to the first upper stripper plate 3 up and down, and a coarse punching station 02 and a pilot station 03 are formed between the first upper stripper plate 3 and the first concave template 4 in sequence; the upper concave die plate 10 is opposite to the lower stripper plate 9 up and down, and a pre-punching station 04 is formed between the upper concave die plate 10 and the lower stripper plate 9; the second upper stripper plate 8 is opposite to the second lower die plate 26 up and down, and a fine punching station 05, a second guide station 06 and a blanking station 07 are formed between the second upper stripper plate 8 and the second lower die plate 26;
the fixed plate 2, the upper concave die plate 10 and the lower end face of the upper die holder 1 are fixedly connected through bolts, the upper discharging plate I3 and the upper discharging plate II 8 are respectively connected with the lower die holder 6 through discharging plate guide posts 14 penetrating through the lower concave die plate I4 or the lower concave die plate 26 and the lower concave die base plate 5, the lower discharging plate 9 and the lower concave die base plate 5 are connected through the discharging plate guide posts 14, and the lower concave die plate I4, the lower concave die plate II 26 and the lower concave die base plate 5 are fixedly connected with the lower die holder through bolts.
In this embodiment, the structure of the progressive die is a common technology, and the problem is not solved by the prior art.
Example 3
The implementation is an improvement on the basis of example 2, specifically:
as shown in fig. 1-9, a vibration damping buffer mechanism is further arranged between the upper die and the lower die, the vibration damping buffer mechanism comprises a supporting rod 32, a first mounting groove 33, a second mounting groove 29, a first limiting block 36, a second limiting block 35, a first spring 34 and a second spring 30, the supporting rod 32 longitudinally penetrates through the first upper discharging plate 3 or the second upper discharging plate 8, the upper lower part of the supporting rod 32 is provided with the first limiting block 36 and the second limiting block 35, the bottom end of the first limiting block 36 is attached to the upper surface of the first upper discharging plate 3 or the second upper discharging plate 8, the top end of the second limiting block 35 is attached to the lower surface of the first upper discharging plate or the second upper discharging plate, the first mounting groove penetrates through the fixed plate 2 and the upper die holder 1, the first spring 34 is arranged at the lower part in the first mounting groove 33, the top end of the first limiting block 35 is connected with the lower end of the first spring 34, and can partially enter the first mounting groove 33 when the first spring 34 is extruded, the lower die plate 4 or the second die plate 4 is arranged at the position of the second lower die plate 29, the second die plate 4 is vertically inserted into the second die plate 29 or the second die plate 30, the second die plate 29 is vertically inserted into the second die plate 30 is arranged at the position of the second lower groove 29, and the bottom end of the first die plate 29 is vertically inserted into the second die plate 30; the concave template II 26 and the upper discharging plate II 8 are separated from each other.
In this embodiment, through the supplementary blanking of upper blanking plate one or upper blanking plate two of damping buffer mechanism on the one hand, go up blanking plate one and upper blanking plate two and carry out spacingly on the other hand, simultaneously, also can cushion the impact force of compound die in-process, be favorable to the chain piece to obtain better shaping effect.
Example 4
The implementation is an improvement on the basis of example 3, specifically:
as shown in fig. 1-9, the rough punching station comprises a rough punching nail 15, wherein the bottom of the rough punching nail 15 is fixedly connected with the fixed plate 2, and the top of the rough punching nail longitudinally and slidably penetrates through the lower surface of the upper discharging plate 3; the first guide station comprises a guide pin 17, the bottom of the guide pin 17 is fixedly connected with the fixed plate 2, and the top of the guide pin longitudinally and slidably penetrates through the lower surface of the first upper discharge plate 3.
Example 5
The implementation is an improvement on the basis of example 4, specifically:
as shown in fig. 1-9, the pre-flushing station comprises an upper female die and a pre-flushing head 13 which are positioned on an upper female die plate 10, a ejector 20 is arranged in the upper female die, the top end of the ejector penetrates through a fixed plate 2 in a sliding manner and is connected with a ejector nitrogen spring 19 embedded in an upper die holder 1, the top of the ejector nitrogen spring 19 is provided with a flange, the flange is fixedly connected with the upper die holder 1 through bolts, the ejector nitrogen spring 19 is connected with a balance nitrogen spring 18 through a high-pressure pipeline 23 to form a management system with the same pressure, the high-pressure pipeline 23 is also connected with a shock-resistant pressure gauge 11, the balance nitrogen spring 18 is arranged in the upper die holder 1, a tightening bolt 12 is arranged at the outer side of a compression rod of the balance nitrogen spring 18, the system pressure is increased or decreased by adjusting the tightening bolt 12, and the pressure output by the ejector nitrogen spring 19 at the top end of the ejector 20 is changed; the lower end of the ejector is used for flattening the upper end of the pre-punched part 24; the upper surface of die holder 6 still be equipped with first mounting hole, first mounting hole in be equipped with rectangle coil spring one 21, rectangle coil spring one top be connected with guide pillar one 25, guide pillar one slidable pass lower die backing plate and with lower stripper fixed connection, under the die sinking state, the lower surface of lower stripper breaks away from each other with the upper surface of lower die backing plate, the lower extreme of pre-punching drift and the upper surface fixed connection of lower die backing plate, the upper end is along the upper surface of longitudinal slidable throughout lower stripper. The first rectangular spiral spring and the first guide pillar assist the lower stripper plate to unload and buffer impact force, when in compression, the first guide pillar moves downwards, the first rectangular spiral spring is compressed and shortened, when in die opening, the first rectangular spiral spring jacks up the lower stripper plate to drop, the cutting edge of the upper female die is used for forming the first fillet belt 004.
In this embodiment, the pressure detecting sensor 22 is installed in the high-pressure pipeline, and the pressure detecting sensor 22 is connected to the brake control circuit of the press machine through a wire, and the press machine is stopped when the system pressure is lower than the required pressure.
Example 6
The implementation is an improvement on the basis of example 5, specifically:
as shown in fig. 1-7, the fine punching station comprises a fine punching nail (not shown in the figure), the bottom of the fine punching nail is fixedly connected with the fixed plate 2, and the top of the fine punching nail longitudinally and slidably penetrates through the lower surface of the upper discharging plate II 8; the second guide station comprises a guide pin 17, the bottom of the guide pin 17 is fixedly connected with the fixed plate 2, and the top of the guide pin longitudinally and slidably penetrates through the lower surface of the second upper discharge plate 8.
Example 7
The implementation is an improvement on the basis of example 6, specifically:
as shown in fig. 1-9, the blanking station comprises a blanking punch 37, wherein the upper end of the blanking punch 37 is fixedly connected with the lower surface of the fixed plate 2, and the lower end of the blanking punch is longitudinally and slidably penetrated through the lower surface of the upper discharging plate II 8; the lower surface of the upper die holder 1 is also provided with a second mounting hole, the mounting Kong Erna is provided with a second rectangular spiral spring, the bottom end of the second rectangular spiral spring is connected with a pressing rod, the pressing rod slidably penetrates through the fixed plate and is fixedly connected with the second upper discharge plate 8, and in the die opening state, the upper surface of the second upper discharge plate is separated from the lower surface of the fixed plate (the second rectangular spiral spring and the pressing rod serve as an auxiliary upper discharge plate for discharging and buffering impact force); a blanking hole (not shown in the figure) is arranged in the lower die below the blanking punch 37, the shape and the size of the blanking hole are matched with those of the formed chain piece part, the upper end of the blanking hole is opened on the upper surface of the lower female die plate II 26, the lower end of the blanking hole penetrates through the lower female die base plate and the lower die holder 6, and a blanking part outlet is formed on the lower surface of the lower die holder; the top of blanking hole be equipped with the blanking punch die (not shown in the figure) that uses with blanking punch cooperation, the blanking punch inside be equipped with and hold chamber (not shown in the figure), hold chamber and be connected with cooling lubrication medium feeding mechanism (not shown in the figure) under the pressure condition, the lateral wall middle part of blanking punch around axis evenly distributed have a plurality of orifices (not shown in the figure), in blanking process, feeding mechanism lubricates and cools the blade department that directly pumps into blanking punch die with cooling lubrication medium via the orifice, washes off blanking material (the piece that the blanking produced) that bonds on the blanking punch simultaneously, the blade of blanking punch die be used for shaping second fillet area 005.
Example 8
The implementation is an improvement on the basis of example 7, specifically:
the blanking gap between the cutting edge of the pre-punching punch 13 in the pre-punching station 04 and the upper die cutting edge of the upper die plate 10 is as follows: the size L1 of the cutting edge of the pre-punching head is larger than the size L2 of the cutting edge of the upper female die, and the relation is as follows: Δl=l1-L2, where Δl is 2% -3% of the strip thickness, which is designed to create a fillet strip margin for the lower surface of the article. The cutting edge dimension L2 of the upper female die is larger than the cutting edge dimension H of the lower female die plate II 26 blanking punch female die, and the relation is as follows: l2 > H, difference: 0.03mm.
Claims (7)
1. A chain piece section double round angle burr-free blanking device is characterized in that: including progressive die body, progressive die body include mould and lower mould, the material area passes from last mould and lower mould between, follows the passageway that the material area marched from left to right and is equipped with in proper order: a coarse punching station, a pilot station I, a pre-punching station, a fine punching station, a pilot station II and a blanking station; the pre-punching station is used for punching a first round corner belt at the edge of the upper end of a pre-punched part, and the blanking station is used for blanking a second round corner belt at the edge of the lower end of a blanking part during blanking.
2. The double-fillet burr-free blanking device for a chain sheet section as claimed in claim 1, wherein: the upper die comprises an upper die seat and a fixed plate connected to the lower end of the upper die seat, wherein the lower end of the fixed plate is provided with an upper discharge plate I, an upper concave die plate and an upper discharge plate II which are arranged side by side from left to right; the lower die comprises a lower die seat, a lower die base plate connected to the upper end of the lower die seat, a first lower die plate, a lower stripper plate and a second lower die plate, wherein the first lower die plate, the second lower stripper plate and the second lower die plate are arranged at the upper end of the lower die base plate in parallel along the left-right direction; the first lower concave die plate is opposite to the first upper discharging plate from top to bottom, and a rough punching station and a guide station I are sequentially formed between the first upper discharging plate and the first lower concave die plate; the upper concave die plate is opposite to the lower stripper plate up and down, and a pre-punching station is formed between the upper concave die plate and the lower stripper plate; the second upper stripper plate is opposite to the second lower die plate in an up-down manner, and a fine punching station, a second guide station and a blanking station are formed between the second upper stripper plate and the second lower die plate;
the fixed plate, the upper concave die plate and the lower end face of the upper die holder are fixedly connected through bolts, the first upper unloading plate and the upper unloading plate are respectively connected with the lower die holder 6 through unloading plate guide posts 14 penetrating through the first lower concave die plate 4 or the lower concave die plate 26 and the lower concave die backing plate, the lower unloading plate is connected with the lower concave die backing plate through unloading plate guide posts, and the first lower concave die plate, the second lower concave die plate and the lower concave die backing plate are fixedly connected with the lower die holder through bolts.
3. The double-fillet burr-free blanking device for a chain sheet section as claimed in claim 2, wherein: the vibration reduction buffer mechanism comprises a support rod, a first mounting groove, a second mounting groove, a first limiting block, a second limiting block, a first spring and a second spring, wherein the support rod longitudinally penetrates through the first upper stripper plate or the second upper stripper plate, the first limiting block and the second limiting block are arranged at the upper lower part of the support rod, the bottom end of the first limiting block is attached to the upper surface of the first upper stripper plate or the second upper stripper plate, the top end of the second limiting block is attached to the lower surface of the first upper stripper plate or the second upper stripper plate, the first mounting groove penetrates through the fixed plate and the upper die seat, the first spring is arranged at the lower part in the first mounting groove, the top end of the first limiting block is connected with the lower end of the first spring and can enter the first mounting groove when the first spring is extruded, the second mounting groove is arranged at the position vertically opposite to the first lower die plate or the second lower die plate, the second mounting groove penetrates through the lower die plate or the lower die plate and the second lower die plate and can enter the second spring, and the second spring is arranged at the lower end of the second die plate and the second spring is arranged at the lower end of the second die plate; the second concave template and the second upper unloading plate are separated from each other.
4. A chain link section double rounded burr-free blanking device as defined in claim 3, characterized in that: the coarse punching station comprises a coarse punching nail, the bottom of the coarse punching nail is fixedly connected with the fixed plate, and the top of the coarse punching nail longitudinally and slidably penetrates through the lower surface of the first upper discharging plate; the guide station I comprises guide nails, the bottoms of the guide nails are fixedly connected with the fixing plate, and the tops of the guide nails longitudinally and slidably penetrate through the lower surface of the upper discharging plate I.
5. The double-fillet burr-free blanking device for a chain sheet section according to claim 4, wherein the blanking device comprises the following components: the pre-punching station comprises an upper female die and a pre-punching punch which are positioned on an upper female die plate, a jacking device is arranged in the upper female die, the top end of the jacking device is slidably penetrated through a fixed plate and is connected with a jacking nitrogen spring embedded in an upper die seat, the top of the jacking nitrogen spring is provided with a flange plate, the flange plate is fixedly connected with the upper die seat through a bolt, the jacking nitrogen spring is connected with a balance nitrogen spring through a high-pressure pipeline to form a management system with the same pressure, the high-pressure pipeline is also connected with an anti-vibration pressure gauge, the balance nitrogen spring is arranged in the upper die seat, a tightening bolt is arranged on the outer side of a balance nitrogen spring compression rod, and the pressure of the jacking nitrogen spring output at the top end of the jacking device is changed by adjusting the tightening bolt to increase and decrease the pressure of the system; the lower end of the ejector is used for pressing and leveling the pre-punched part; the upper surface of die holder still be equipped with first mounting hole, first mounting hole in be equipped with rectangle coil spring one, rectangle coil spring one top be connected with guide pillar one, guide pillar one slidable pass lower die backing plate and with lower stripper fixed connection, under the die sinking state, the lower surface of lower stripper breaks away from each other with the upper surface of lower die backing plate, the upper end of pre-punching drift and the upper surface fixed connection of lower die backing plate, the upper end is along the upper surface of vertically slidable run through lower stripper, the blade of upper die be used for shaping first fillet area.
6. The double-fillet burr-free blanking device for a chain sheet section according to claim 5, wherein the blanking device comprises the following components: the fine punching station comprises a fine punching nail, the bottom of the fine punching nail is fixedly connected with the fixed plate, and the top of the fine punching nail longitudinally and slidably penetrates through the lower surface of the upper discharging plate II; the second guide station comprises guide nails, the bottoms of the guide nails are fixedly connected with the fixing plate, and the tops of the guide nails longitudinally and slidably penetrate through the lower surface of the second upper discharge plate.
7. The double-fillet burr-free blanking device for a chain sheet section as defined in claim 6, wherein: the blanking station comprises a blanking punch, the upper end of the blanking punch is fixedly connected with the lower surface of the fixed plate, and the lower end of the blanking punch longitudinally and slidably penetrates through the lower surface of the upper discharging plate II; the lower surface of the upper die holder is also provided with a second mounting hole, the mounting Kong Erna is provided with a second rectangular spiral spring, the bottom end of the second rectangular spiral spring is connected with a pressing rod, the pressing rod can slidably penetrate through the fixed plate and is fixedly connected with the second upper discharge plate, and the upper surface of the second upper discharge plate is separated from the lower surface of the fixed plate in a die opening state; a blanking hole is formed in the lower die below the blanking punch, the shape and the size of the blanking hole are matched with those of the formed chain piece, the upper end of the blanking hole is opened on the upper surface of the lower female die plate II, the lower end of the blanking hole penetrates through the lower female die base plate and the lower die holder, and a blanking piece outlet is formed in the lower surface of the lower die holder; the top of blanking hole be equipped with the blanking punch die that uses with blanking punch cooperation, the blanking punch inside be equipped with and hold the chamber, hold the chamber and be connected with the cooling lubrication medium feeding mechanism under the pressure condition, the lateral wall middle part of blanking punch around axis evenly distributed have a plurality of orifices, in blanking process, feeding mechanism lubricates and cools off the blade department that the blanking punch die was gone into to the direct pump of orifice with cooling lubrication medium, dashes off the blanking material that bonds on the blanking punch simultaneously, the blade of blanking punch die be used for shaping second fillet area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310654791.9A CN116511332A (en) | 2023-06-05 | 2023-06-05 | Double-fillet burr-free blanking device for section of chain sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310654791.9A CN116511332A (en) | 2023-06-05 | 2023-06-05 | Double-fillet burr-free blanking device for section of chain sheet |
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| Publication Number | Publication Date |
|---|---|
| CN116511332A true CN116511332A (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310654791.9A Pending CN116511332A (en) | 2023-06-05 | 2023-06-05 | Double-fillet burr-free blanking device for section of chain sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444041A (en) * | 2023-12-22 | 2024-01-26 | 江苏昶屹电子科技有限公司 | Electronic fitting appearance blanking former |
-
2023
- 2023-06-05 CN CN202310654791.9A patent/CN116511332A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444041A (en) * | 2023-12-22 | 2024-01-26 | 江苏昶屹电子科技有限公司 | Electronic fitting appearance blanking former |
| CN117444041B (en) * | 2023-12-22 | 2024-02-20 | 江苏昶屹电子科技有限公司 | Electronic fitting appearance blanking former |
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