CN107812822B - Punching mechanism for multiple small round steel bars of punching machine - Google Patents
Punching mechanism for multiple small round steel bars of punching machine Download PDFInfo
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- CN107812822B CN107812822B CN201711201524.7A CN201711201524A CN107812822B CN 107812822 B CN107812822 B CN 107812822B CN 201711201524 A CN201711201524 A CN 201711201524A CN 107812822 B CN107812822 B CN 107812822B
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- punching
- cutter
- lower die
- die holder
- round steel
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- 238000004080 punching Methods 0.000 title claims abstract description 149
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims description 77
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 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
-
- 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
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/26—Stops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accessories And Tools For Shearing Machines (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a punching mechanism for a plurality of small round steel bars for a punching machine, which relates to the technical field of machining and solves the technical problems of high machining difficulty, low production efficiency and the like of a punching die in the prior art.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a small round steel bar multi-branch punching mechanism for a punching machine.
Background
The straight round bar with the diameter of 3-12 mm is generally used after being punched into sections, and the straight round bar has large use amount and wide application range. At present, the die cutting mechanism for the straight small round steel bar has the defects of complex die manufacture and low die cutting efficiency. In the prior art, when the lower punch cutter is installed, one punching hole is exactly on the same axis with the hole of the round guide sleeve, and round bar materials are smoothly guided out for punching. After the hole is worn, the lower punch knife is dismounted, the lower punch knife is rotated, the punching holes which are not worn are corresponding to the round guide sleeve, punching is performed again until all the punching holes are worn, then the lower punch knife is dismounted, the worn part is ground on a surface grinder, at the moment, the thickness of the lower punch knife is thinned, a gap is formed between the upper punch knife and the lower punch knife after being remounted, and the upper punch knife and the lower punch knife can continuously work only by loosening the lower die holder or moving the upper die holder to enable the upper punch knife and the lower punch knife to be close. The machining of the lower die holder must ensure that enough size and position precision exists among the mounting hole of the round guide sleeve, the screw mounting hole and the bearing surface of the lower die holder; otherwise, because the holes are smaller and the lower punch knife deforms during heat treatment, the round guide sleeve and the lower punch knife are difficult to ensure that the punching holes are on the same axis, and in use, the diameter of the round guide sleeve is always increased because the punching holes are not coaxial, so that the feeding is not smooth, and the punching is seriously performed Kong Qiyong. Therefore, the lower die holder, in particular the lower punching cutter, has high processing difficulty and high cost.
Disclosure of Invention
Aiming at the defects, the invention provides a small round steel bar multi-branch punching mechanism for a common punch, which reduces the processing difficulty, saves the die material and improves the production efficiency.
The invention adopts the following technical scheme for realizing the purposes:
The utility model provides a punching machine is with many punching mechanism of little round bar, includes die holder, material loading frame and punch press workstation, the die holder is located punch press workstation's upper portion, the material loading frame is located one side of punch press workstation, the inside guide sleeve that is equipped with of die holder, the guide sleeve corresponds and is equipped with down the punching cutter, be equipped with die-cut hole on the lower punching cutter, the diameter of die-cut hole with the internal diameter of guide sleeve passageway is unanimous, die-cut hole and the die-cut hole that is close to are on same straight line in the vertical direction, the top of lower punching cutter is equipped with a fixed surface, the lower punching cutter is fixed in die holder lateral surface middle part, the preceding terminal surface of lower punching cutter is equipped with the front baffle, the lower punching cutter top corresponds and is equipped with the upper punching cutter.
The principle of the invention is as follows: the small round steel bar is conveyed to the guide sleeve on the feeding frame, the guide sleeve is provided with a guide channel corresponding to the small round steel bar, the small round steel bar is positioned in the punching hole due to the fact that the lower punching knife is provided with a punching hole consistent with the guide channel, the upper punching knife corresponding to the lower punching knife moves downwards under the action of power, the upper punching knife and the lower punching knife are tightly attached, the movement track of the upper punching knife is limited by the arrangement of the two front baffles, and when the upper punching knife with huge kinetic energy contacts with the small round steel bar, the small round steel bar is cut off and falls into the blanking groove. Because only the lower semicircle atress is gone up in the punching press hole during operation, should avoid the punching press hole to align about so as to guarantee the sufficient bearing strength of pore wall as far as possible, the furthest performance of punching press sword whole material and make the intermittent type formula atress of punching press sword, the setting of the dislocation structure of punching press hole of punching press sword simultaneously for do not influence each other between the round bar material that falls down in the different punching press holes, thereby realized one sword and cut the function more, improved cutting efficiency greatly.
Further, still include group material fastener, group material fastener includes overcoat and dislocation circle, dislocation circle is located inside the overcoat, dislocation circle top is equipped with the fastening face, the fastening face with there is 0.5 mm's clearance between the overcoat, fasten with the screw between overcoat and the dislocation circle, dislocation circle with the overcoat be equipped with the corresponding fastening hole of die-cut hole of lower stamping knife. In order to ensure that the punching length is consistent, a group of materials are required to be fastened into a whole to be pushed in parallel, and the device adopts a whole staggered fastening mode, so that the assembly and the disassembly are very convenient. A group of materials are plugged into the fastening holes in the outer sleeve and the dislocation ring at the same time, and as a gap of 0.5mm is reserved between the fastening surfaces of the outer sleeve and the dislocation ring, the fastening surfaces of the dislocation ring are tightly fixed to enable the fastening holes in the dislocation ring and the fastening holes in the outer sleeve to be misplaced, and therefore the group of materials are tightly fastened together.
Further, the lower punching cutter is of a circular structure, the thickness of the lower punching cutter is 40-50mm, and the lower punching cutter is connected with the material guiding sleeve and the lower die holder through four symmetrically distributed screws. Because the punching cutter is in the during operation, only the lower semicircle atress and the wearing and tearing of its die-cut hole, after the wearing and tearing of die-cut hole lower semicircle, rotate 180 degrees with circle punching cutter and guide sleeve and reinstall, at this moment the die-cut hole will semicircle become to be exchanged, do not put into operation again with the semicircle of wearing and tearing, a sword equals two sword uses, production efficiency has been improved, manufacturing cost has been reduced, lower punching cutter is connected with guide sleeve and die holder through four symmetrically distributed's screw, adopt the circular structure be convenient for processing of die holder and cutter body, the dress is unloaded, the location, simultaneously also saved a large amount of expensive mould steel materials.
Further, a rear check ring is arranged on the rear end face of the lower die holder, and the rear check ring is in threaded connection with the lower die holder. The arrangement of the rear retainer ring ensures that the fastening effect between the guide sleeve and the lower punch knife as well as the lower die holder is further enhanced, and the disassembly is convenient.
Further, the lower die holder lower extreme is equipped with the lower bolster, lower bolster fixed mounting is at punch press workstation up end, the one end that the punch press workstation kept away from the lower bolster is equipped with preceding back iron, preceding back iron passes through the screw and installs punch press workstation up end, the summit of preceding back iron highly accords with the summit of the little round steel bar of bottommost. The lower die holder is fixed on a punch workbench through a lower die plate, and the length of the lowest edge is only determined when the iron is used. Because a group of materials are integrally fed by the group material fastening device, the length of the group material is fixed, and meanwhile, the upper part is reserved with a free space, so that the cut round bar material can fly away from the punching area rapidly, and the phenomenon that the blanking is overlapped and extruded to form bending and the punching cutter is broken is avoided.
Further, a material dropping groove is formed between the front retaining iron and the lower template. The setting of silo for the convenient stack of little round steel bar of quilt cutting, and effective utilization operation space improves the utilization ratio of device.
Further, the front baffle is fixed on the front end surfaces of the lower punching cutter and the material guiding sleeve seat through four symmetrically distributed screws. The front baffle of the lower punch cutter is fixed on the front end surfaces of the lower punch cutter and the guide sleeve seat by four screws, when the guide sleeve is pushed forward by the lower punch cutter pressing ring and the front push screw to be pressed forward, the guide sleeve pushes the lower punch cutter to enable the front end surface of the guide sleeve to be clung to the inner side surface of the front baffle of the lower punch cutter, so that the axial position of the lower punch cutter is fastened, and meanwhile, the upper punch cutter can be guided by the front baffles of the two lower punch cutters.
Further, the number of the material assembling and fastening devices is more than or equal to 1, the number of the front baffle plates is two, the front baffle plates are symmetrically distributed along the symmetry axis of the lower punching cutter, and the number of the punching holes is more than or equal to 4. The quantity of the material fastening device can be set according to the requirement of actual operation, so that a plurality of small round steel bars are of an integrated structure, the quantity of the front baffle plates is two, the fastening effect on the lower punching cutter and the material guiding sleeve is facilitated, the positioning effect is achieved after the lower punching cutter is polished and thinned again, the cutting efficiency and the bearing strength of the punching hole wall are balanced in the setting of the quantity of the punching holes, and the optimal quantity of the punching holes can be selected according to the requirement of the actual operation.
Further, the material assembling and fastening device, the material loading frame, the lower die holder and the punch workbench are positioned in the same axial direction. The assembly fastening device, the feeding frame, the lower die holder and the punch press workbench are positioned in the same axial direction, so that the assembly line is convenient for cutting bars during actual operation, the cutting efficiency is improved, and meanwhile, the operation space is saved.
The invention has the beneficial effects that:
1. In order to ensure that the punching length is consistent, a group of materials are required to be fastened into a whole to be pushed in parallel, and the device adopts a whole staggered fastening mode, so that the assembly and the disassembly are very convenient. A group of materials are plugged into the fastening holes in the outer sleeve and the dislocation ring simultaneously, and as a gap of 0.5 mm is reserved between the fastening surfaces of the outer sleeve and the dislocation ring, the fastening surfaces of the dislocation ring are tightly fixed to enable the fastening holes in the dislocation ring and the fastening holes in the outer sleeve to be dislocated, so that the group of materials are tightly fastened together, the number of front stop irons matched with the group of materials is reduced, the materials of the device are greatly saved, and the utilization rate of the device and the production cutting efficiency are improved.
2. The lower punching cutter is of a circular structure, because the lower semicircle of the punching hole of the lower punching cutter is stressed and worn when the lower punching cutter works, after the lower semicircle of the punching hole is worn, the circular punching cutter and the material guiding sleeve are rotated 180 degrees to be reinstalled, at the moment, the semicircle of the punching hole is changed, the semicircle without wearing is put into operation again, one cutter is equal to two cutters, the production efficiency is improved, the production cost is reduced, the lower punching cutter is connected with the material guiding sleeve and the lower die holder through four symmetrically distributed screws, the circular structure is adopted, the lower die holder and the cutter body are convenient to process, assemble and position, and a large amount of expensive die steel materials are saved.
3. The lower die holder is fixed on a punch workbench through a lower die plate, and the length of the lowest edge is only determined when the iron is used. Because a group of materials are integrally fed by the group material fastening device, the length of the group material is fixed, and meanwhile, the upper part is reserved with a free space, so that the cut round bar material can fly away from the punching area rapidly, and the phenomenon that the blanking is overlapped and extruded to form bending and the punching cutter is broken is avoided.
4. The front baffle is fixed on the front end surface of the lower punching cutter and the material guiding sleeve seat through four symmetrically distributed screws. The front baffle of the lower punch cutter is fixed on the front end surfaces of the lower punch cutter and the guide sleeve seat by four screws, when the guide sleeve is pushed forward by the lower punch cutter pressing ring and the front push screw to be pressed forward, the guide sleeve pushes the lower punch cutter to enable the front end surface of the guide sleeve to be clung to the inner side surface of the front baffle of the lower punch cutter, so that the axial position of the lower punch cutter is fastened, and meanwhile, the upper punch cutter can be guided by the front baffles of the two lower punch cutters.
5. The invention adopts the design of one-cutter multi-branch punching mechanism, greatly improves the production efficiency and reduces the production cost.
6. The lower punch is rounded by square, the cutter material is fully utilized, expensive die material is saved, meanwhile, the thickness of the cutter is increased, the grinding times are increased, and the die cost is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the lower punch of the present invention;
FIG. 3 is a schematic view of the structure of the material fastening device of the present invention in cross section (left) and longitudinal section (right);
Fig. 4 is a schematic cross-sectional (right) and longitudinal (left) view of the die-cutting mechanism of the present invention.
Reference numerals: 1-feeding frame, 2-group material fastening device, 3-upper punch cutter, 4-front baffle, 5-front baffle iron, 6-punch workbench, 7-guide sleeve, 8-rear baffle ring, 9-lower punch cutter, 10-outer sleeve, 11-fastening hole, 12-fastening surface, 13-dislocation ring, 14-fixing surface, 15-punching hole, 16-lower die plate, 17-lower die holder and 18-blanking groove.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention, taken in conjunction with the accompanying drawings and the following examples.
Example 1
As shown in fig. 1 and 2, this embodiment provides a punching mechanism with multiple small round steel bars for a punching machine, including a lower die holder 17, an upper material rack 1 and a punching machine workbench 6, the lower die holder 17 is located on the upper portion of the punching machine workbench 6, the upper material rack 1 is located on one side of the punching machine workbench 6, a material guiding sleeve 7 is arranged inside the lower die holder 17, the material guiding sleeve 7 is correspondingly provided with a lower punch 9, a punching hole 15 is arranged on the lower punch 9, the diameter of the punching hole 15 is consistent with the inner diameter of a channel of the material guiding sleeve 7, the punching hole 15 and the adjacent punching hole 15 are not on the same vertical line, the top of the lower punch 9 is provided with a fixing surface 14, the lower punch 9 is fixed on the middle of the outer side surface of the lower die holder 17, the front end surface of the lower punch 9 is provided with a front baffle 4, and the top of the lower punch 9 is correspondingly provided with an upper punch 3.
Example 2
As shown in fig. 1-3, this embodiment provides a punching mechanism with multiple small round steel bars for a punching machine, including a lower die holder 17, an upper material rack 1 and a punching machine workbench 6, the lower die holder 17 is located on the upper portion of the punching machine workbench 6, the upper material rack 1 is located on one side of the punching machine workbench 6, a material guiding sleeve 7 is arranged inside the lower die holder 17, the material guiding sleeve 7 is correspondingly provided with a lower punch 9, the lower punch 9 is provided with a punching hole 15, the diameter of the punching hole 15 is consistent with the inner diameter of a channel of the material guiding sleeve 7, the punching hole 15 and the adjacent punching hole 15 are not on the same vertical line, the top of the lower punch 9 is provided with a fixing surface 14, the lower punch 9 is fixed on the middle of the outer side surface of the lower die holder 17, the front end surface of the lower punch 9 is provided with a front baffle 4, and the top of the lower punch 9 is correspondingly provided with an upper punch 3.
Still include group material fastener 2, group material fastener 2 includes overcoat 10 and dislocation circle 13, dislocation circle 13 is located inside the overcoat 10, dislocation circle 13 top is equipped with fastening face 12, fastening face 12 with there is 0.5 mm's clearance between the overcoat 10, fasten with the screw between overcoat 10 and the dislocation circle 13, dislocation circle 13 with overcoat 10 be equipped with the corresponding fastening hole 11 of die-cut hole 15 of lower stamping knife 9.
Example 3
As shown in fig. 1-4, this embodiment provides a punching mechanism with multiple small round steel bars for a punching machine, including a lower die holder 17, an upper material rack 1 and a punching machine workbench 6, the lower die holder 17 is located on the upper portion of the punching machine workbench 6, the upper material rack 1 is located on one side of the punching machine workbench 6, a material guiding sleeve 7 is arranged inside the lower die holder 17, the material guiding sleeve 7 is correspondingly provided with a lower punch 9, the lower punch 9 is provided with a punching hole 15, the diameter of the punching hole 15 is consistent with the inner diameter of a channel of the material guiding sleeve 7, the punching hole 15 and the adjacent punching hole 15 are not on the same vertical line, the top of the lower punch 9 is provided with a fixing surface 14, the lower punch 9 is fixed on the middle of the outer side surface of the lower die holder 17, the front end surface of the lower punch 9 is provided with a front baffle 4, and the top of the lower punch 9 is correspondingly provided with an upper punch 3.
Still include group material fastener 2, group material fastener 2 includes overcoat 10 and dislocation circle 13, dislocation circle 13 is located inside the overcoat 10, dislocation circle 13 top is equipped with fastening face 12, fastening face 12 with there is 0.5 mm's clearance between the overcoat 10, fasten with the screw between overcoat 10 and the dislocation circle 13, dislocation circle 13 with overcoat 10 be equipped with the corresponding fastening hole 11 of die-cut hole 15 of lower stamping knife 9.
The lower punching cutter is of a circular structure, the thickness of the lower punching cutter 9 is 40-50mm, and the lower punching cutter is connected with the material guiding sleeve 7 and the lower die holder 17 through four symmetrically distributed screws.
The rear end face of the lower die holder 17 is provided with a rear check ring 8, and the rear check ring 8 is in threaded connection with the lower die holder 17.
The lower die holder 17 lower extreme is equipped with lower bolster 16, lower bolster 16 fixed mounting is at punch press workstation 6 up end, punch press workstation 6 is kept away from the one end of lower bolster 16 and is equipped with preceding back iron 5, preceding back iron 5 passes through the screw and installs punch press workstation 6 up end, the summit of preceding back iron 5 highly accords with the summit of the little round steel bar of bottommost.
A material dropping groove 18 is formed between the front stop iron 5 and the lower die plate 16.
The front baffle 4 is fixed on the front end surfaces of the lower punch 9 and the guide sleeve 7 seat through four symmetrically distributed screws.
The number of the material assembling and fastening devices 2 is more than or equal to 1, the number of the front baffles 4 is two, the front baffles are symmetrically distributed along the symmetry axis of the lower punching cutter 9, and the number of the punching holes 15 is more than or equal to 4.
The material assembling and fastening device 2, the feeding frame 1, the lower die holder 17 and the punch workbench 6 are positioned in the same axial direction.
When the invention works, a small round steel bar is conveyed into the guide sleeve 7 on the feeding frame 1, the guide sleeve 7 is provided with a guide channel corresponding to the small round steel bar, the small round steel bar is positioned in the punching hole 15 because the lower punching knife 9 is provided with a punching hole 15 consistent with the guide channel, the upper punching knife 3 corresponding to the lower punching knife 9 moves downwards under the action of power, the upper punching knife 3 is tightly attached to the lower punching knife 9, the two front baffles 4 are arranged to limit the movement track of the upper punching knife 3, and when the upper punching knife 3 with huge kinetic energy contacts with the small round steel bar, the small round steel bar is cut off and falls into the blanking groove 18. Because only the lower semicircle is stressed when the punching hole 15 works, the upper and lower alignment of the punching hole 15 is avoided as much as possible to ensure enough bearing strength of the hole wall, meanwhile, the whole material performance of the punching cutter is exerted to the greatest extent, the intermittent stress of the punching cutter is realized, and meanwhile, the staggered structure of the punching hole 15 of the lower punching cutter 9 is arranged, so that round bars falling from different punching holes 15 are not influenced by each other, the one-cutter multi-cutting function is realized, and the cutting efficiency is greatly improved. In order to ensure consistent punching length, a group of materials must be fastened into a whole to be pushed in parallel, and the group material fastening device 2 adopts a whole staggered fastening mode, so that the assembly and disassembly are very convenient. A group of materials are simultaneously plugged into the fastening holes 11 in the outer sleeve 10 and the dislocation ring 13, and the fastening surface 12 of the dislocation ring 13 is tightly fastened because a gap of 0.5 mm exists between the outer sleeve 10 and the fastening surface 12 of the dislocation ring 13, so that the fastening holes 11 in the dislocation ring 13 and the fastening holes 11 in the outer sleeve 10 are misplaced, and therefore, the group of materials are tightly fastened together.
The above description is only a preferred embodiment of the present invention, and the patent protection scope of the present invention is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a punching machine is with many die-cut mechanisms of little round steel bar, includes die holder (17), goes up work or material rest (1) and punch press workstation (6), die holder (17) are located the upper portion of punch press workstation (6), go up work or material rest (1) are located one side of punch press workstation (6), its characterized in that: the die comprises a lower die holder (17), and is characterized in that a guide sleeve (7) is arranged in the lower die holder (17), an lower die cutter (9) is correspondingly arranged on the guide sleeve (7), a punching hole (15) is formed in the lower die cutter (9), the diameter of the punching hole (15) is consistent with the inner diameter of a channel of the guide sleeve (7), the punching hole (15) and the adjacent punching hole (15) are not on the same vertical line in the vertical direction, a fixing surface (14) is formed at the top of the lower die cutter (9), the lower die cutter (9) is fixed in the middle of the outer side surface of the lower die holder (17), a front baffle (4) is arranged on the front end surface of the lower die cutter (9), and an upper die cutter (3) is correspondingly arranged at the top of the lower die cutter (9);
The automatic punching machine is characterized by further comprising a material assembling and fastening device (2), wherein the material assembling and fastening device (2) comprises an outer sleeve (10) and a dislocation ring (13), the dislocation ring (13) is positioned inside the outer sleeve (10), a gap of 0.5mm is reserved between the dislocation ring (13) and the outer sleeve (10), a fastening surface (12) is arranged at the top of the dislocation ring (13), the outer sleeve (10) and the dislocation ring (13) are fastened by screws, and fastening holes (11) corresponding to punching holes (15) of the lower punching cutter (9) are formed in the dislocation ring (13) and the outer sleeve (10);
The lower punching cutter (9) is of a round structure, the thickness of the lower punching cutter is 20-50mm, and the lower punching cutter (9) is connected with the material guiding sleeve (7) and the lower die holder (17) through four symmetrically distributed screws.
2. The punching mechanism for a plurality of small round steel bars for a punching machine according to claim 1, wherein: the rear end face of the lower die holder (17) is provided with a rear check ring (8) of the guide sleeve (7), and the rear check ring (8) is in threaded connection with the lower die holder.
3. The punching mechanism for a plurality of small round steel bars for a punching machine according to claim 1, wherein: the lower die holder (17) lower extreme is equipped with lower bolster (16), lower bolster (16) fixed mounting is at punch press workstation (6) up end, the one end that lower bolster was kept away from to punch press workstation (6) is equipped with preceding back iron (5), preceding back iron (5) are installed through the screw punch press workstation (6) up end, the summit of preceding back iron (5) is unanimous with the height of the little round bar summit of bottommost.
4. A small round bar multi-piece die cutting mechanism for a press as claimed in claim 3, wherein: and a material dropping groove (18) is formed between the front stop iron (5) and the lower template (16).
5. The punching mechanism for a plurality of small round steel bars for a punching machine according to claim 1, wherein: the front baffle (4) is fixed on the front end face of the lower die holder (17) through four symmetrically distributed screws.
6. The punching mechanism for a plurality of small round steel bars for a punching machine according to claim 1, wherein: the number of the material-assembling fastening devices (2) is more than or equal to 1, the number of the front baffle plates (4) is two, the front baffle plates are symmetrically distributed along the symmetry axis of the lower punching cutter (9), and the number of the punching holes (15) is more than or equal to 4.
7. The punching mechanism for a plurality of small round steel bars for a punching machine according to claim 1, wherein: the fixing surface (14) and the fastening surface (12) are respectively provided with a screw, and the lower die holder (17) and the outer sleeve (10) are respectively provided with a screw hole.
8. The punching mechanism for a plurality of small round steel bars for a punching machine according to claim 1, wherein: the material assembling and fastening device (2), the material loading frame (1), the lower die holder (17) and the punch workbench (6) are positioned in the same axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201524.7A CN107812822B (en) | 2017-11-27 | 2017-11-27 | Punching mechanism for multiple small round steel bars of punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201524.7A CN107812822B (en) | 2017-11-27 | 2017-11-27 | Punching mechanism for multiple small round steel bars of punching machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107812822A CN107812822A (en) | 2018-03-20 |
| CN107812822B true CN107812822B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711201524.7A Active CN107812822B (en) | 2017-11-27 | 2017-11-27 | Punching mechanism for multiple small round steel bars of punching machine |
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| Country | Link |
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| CN (1) | CN107812822B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1909278A1 (en) * | 1968-02-29 | 1970-01-15 | Skoda Np | Device for cutting material on the hut and machine building shears |
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| CN107812822A (en) | 2018-03-20 |
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