CN103747892A - Punch unit for punching thin sheet metal, and thin sheet metal punching apparatus provided with punch unit - Google Patents
Punch unit for punching thin sheet metal, and thin sheet metal punching apparatus provided with punch unit Download PDFInfo
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- CN103747892A CN103747892A CN201280023641.8A CN201280023641A CN103747892A CN 103747892 A CN103747892 A CN 103747892A CN 201280023641 A CN201280023641 A CN 201280023641A CN 103747892 A CN103747892 A CN 103747892A
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- Prior art keywords
- drift
- major diameter
- diameter
- shell
- punch
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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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
An apparatus (1) for punching a thin sheet metal is provided with: an upper die holder (2), which is brought up and down by means of a hydraulic ram and the like; a pressing plate (3), which is firmly attached to the upper die holder (2); a pressing pad (5), which is suspended from the upper die holder (2) with an elastic member (4) therebetween; a punch holder (7), as a punch unit, which is firmly attached to the pressing pad (5) with a bolt (6); a lower die (9) having placed thereon a thin sheet metal (8) to be punched; and a die (10), which is embedded in the lower die (9).
Description
Technical field
The metallic plate pressing equipment that the present invention relates to a kind of punch units for stamped sheet metal and there is this punch units.
Background technology
Such pressing equipment has been proposed: wherein, drift comprises cylindrical punch body and is formed on the conical projections on this drift body one end face, the external diameter of this drift body is less than the bore dia of punch die, and this drift compresses metallic plate and on metallic plate, is pre-formed perforation with the projection by drift.In the motion of metallic plate by inserting under the state of the protrusions limit in perforation, when drift body further inserts the circular hole of punch die from one end of the circular hole of punch die, metallic plate breaks in metallic plate, to form through hole by circumference and the cooperation of drift body at the annular edge of the cylindrical form interior surface of punch die, the circumference at this annular edge defines one end (for example,, with reference to patent documentation 1) of punch die circular hole.
Prior art document
Patent documentation
Patent documentation 1:JP-A-2008-155216
Summary of the invention
The problem that the present invention need solve
In the pressing equipment proposing at patent documentation 1, punch units (stationary punch holder) comprising: the shell that is fixed to compacting pad by bolt etc.; Can vertically be mounted to slidably the slide block of this shell; Can vertically be slidably mounted on the drift in slide block; Be arranged in this slide block and be suitable for by via the drift slide block of pushing and drift and slide block are back to the wind spring of its initial position upwards flexibly; Thereby and the slider guide moving both vertically that is arranged on pilot punch in shell.So, when assembling punch units, drift and wind spring are inserted to the sunk part that is attached to slide block, and subsequently slide block, drift and wind spring assembly are inserted and be attached to enclosure.Or, this drift is inserted to the sunk part that is attached to slide block, and being inserted, wind spring is attached to enclosure, subsequently slide block and punch-head assembly are inserted to the inside that is attached to the shell in shell and wind spring assembly.Therefore, in manufacture, maintenance and maintenance process, need complicated assembly work consuming time.
In addition, for the punch units in this pressing equipment, owing to also using slide block except drift, institute is so that number of components increases, and this just means the increase of manufacturing cost and maintenance cost.
The present invention be directed to that above-mentioned aspect designs, the metallic plate pressing equipment that the object of this invention is to provide a kind of punch units for stamped sheet metal and there is this punch units, it is easily assembling at short notice in the processes such as manufacture, maintenance and maintenance, and can obtain the reduction of manufacturing cost, maintenance cost etc.
The method of dealing with problems
Punch units for stamped sheet metal according to the present invention comprises: hollow shell; Be movably disposed within vertically the drift in the hollow space of shell; and elastic component, described elastic component is arranged in the hollow space of shell and flexibly suppresses described drift vertically towards initial position, wherein, described shell comprises perimeter surface in minor diameter, there is perimeter surface in the major diameter of the diameter larger than the diameter of perimeter surface in described minor diameter, and in described minor diameter the annular step surface between perimeter surface in perimeter surface and described major diameter, described hollow space is limited by perimeter surface in perimeter surface in described minor diameter and described major diameter, wherein said drift comprises projection, minor diameter drift part and major diameter drift part, on an axial end of described minor diameter drift part, described projection is set integratedly, and described minor diameter drift part perimeter surface in the described minor diameter of its minor diameter outer surface place and described shell contacts vertically movably, on an axial end of described major diameter drift part, be arranged on integratedly on another axial end of minor diameter drift part, and described major diameter drift part perimeter surface in the major diameter of its major diameter outer surface place larger than the diameter of described minor diameter drift part and described shell contacts vertically movably, and described drift can be projected into housing exterior from an axial end of described shell in its minor diameter punch office, described drift is projected into housing exterior in its major diameter punch office from another axial end of described shell simultaneously, and wherein said projection is formed on an axial end of the minor diameter drift part that can be projected into from an axial end of described shell described housing exterior, and described elastic component contacts with the ledge surface of described shell at its place, one end, at its other end place, contact with the annular step surface between described major diameter outer surface with the described minor diameter outer surface of described drift.
According to the above-mentioned punch units for stamped sheet metal, because perimeter surface in the minor diameter outer surface of minor diameter drift part of drift and the minor diameter of shell contacts vertically movably, and the major diameter outer surface of the major diameter drift of drift part contacts vertically movably with perimeter surface in the major diameter of shell, therefore drift can move vertically, is guided by perimeter surface in perimeter surface and major diameter in the minor diameter of shell simultaneously.Thus, even if slide block is not set between drift and shell, drift still can move vertically, and this punch units can be by insert drift in the hollow space that is attached in shell and elastic component is inserted in the hollow space that is attached in shell and assembled simultaneously.Thus, in manufacture, maintenance with during safeguarding, can easily realize at short notice assembling, and can obtain the reduction of manufacturing cost and maintenance cost.
In the present invention, in the major diameter of shell, perimeter surface can have identical diameter at the ledge surface from shell in the scope of another axial end of shell, and the major diameter drift of drift part has identical diameter at the ledge surface from drift in the scope of another axial end of major diameter drift part, thereby make described drift be suitable for extracting another axial end through shell out from the hollow space of shell.In addition, shell can comprise outer cover body and the annular element that is fixed to another axial end of described outer cover body, described outer cover body has perimeter surface and the interior perimeter surface of major diameter in minor diameter, and described major diameter drift part can comprise major diameter drift body part and major diameter drift ledge, described major diameter drift body part has the major diameter outer surface that in the major diameter with outer cover body, perimeter surface contacts vertically movably, described major diameter drift ledge has diameter than each the little outer surface of diameter in the interior perimeter surface of the limited hole of the major diameter outer surface of major diameter drift body and described annular element, and described major diameter drift ledge passes the through hole of described annular element and is projected into described shell from another axial end of described shell, thereby forbid that by major diameter drift body part and contacting of described annular element described drift extracts out from the hollow space of described shell.In this situation, after elastic component and drift insert and are attached in the hollow space of shell, another axial end that annular element can be by screw-threaded engagement, the mode such as be equipped with, be spirally connected is removably fixed to outer cover body, or alternatively after elastic component and drift insert and are attached in the hollow space of shell, can be fixing integratedly by welding, the mode such as bonding.
In addition, in the present invention, shell can comprise outer cover body and be formed on the drawing part on another axial end of described outer cover body, described outer cover body has perimeter surface and the interior perimeter surface of major diameter in minor diameter, and described major diameter drift part can comprise major diameter drift body part and major diameter drift ledge, described major diameter drift body part has the major diameter outer surface that in the major diameter with outer cover body, perimeter surface contacts vertically movably, described major diameter drift ledge has diameter than each the little outer surface of diameter in the interior perimeter surface of the major diameter outer surface of major diameter drift body and described drawing part, and the through hole that described major diameter drift ledge limits through the interior perimeter surface by described draw piece is also projected into described shell from another axial end of described shell, thereby by major diameter drift body part and describedly draw contacting of part and forbid that described drift extracts out from the hollow space of described shell.
Shell is formed by metal conventionally; But in order to realize the further reduction on cost, shell can be made by having the flexible resin material such as polyacetals of slip.If shell is formed by resin material, can realize the reduction of weight, so resin material is preferably.
Projection can have taper shape or cone shape, wherein, this projection is arranged on an end face of minor diameter drift part integratedly at its place, baseplane, or alternatively, this projection can comprise on an end face that is arranged on integratedly minor diameter drift part and have the cylindrical part with circular base plane and the circular top plane of this end face arranged concentric; And be arranged on integratedly circular cone or the conical section in the circular top plane of cylindrical part.Or this projection can comprise on an end face that is arranged on integratedly minor diameter drift part and have the frusto-conical portion of the circular top plane that circular base plane and diameter with this end face arranged concentric be less than described circular base plane; And be arranged on integratedly circular cone or the conical section in the circular top plane of described frustoconical part.
This taper shape or cone-shaped projection and circular cone or conical section can form circular cone shape or such as the polygon pyramidal shape of triangle cone or quadrangle cone.
According to the punch units for stamped sheet metal of the present invention, can be used to metallic plate pressing equipment, wherein by projection punching press on metallic plate, bore a hole, and the small diameter portion of drift is inserted under the state of protrusions limit of punching the hole of further inserting punch die from the one end in the hole of punch die in the movement of metallic plate, the circumference of the ring edge of the cylindrical form interior surface by punch die breaks metallic plate thus, thereby on metallic plate, form through hole, the circumference of described ring edge limits the one end in the hole of punch die.
For by according to the metallic plate of punch units punching press of the present invention, in order to obtain satisfied result, its thickness is between 0.4mm to 2.0mm or left and right, but in order to obtain more satisfied result, its thickness is between 0.6mm to 1.6mm or left and right.
Advantage of the present invention
According to the present invention, the metallic plate pressing equipment that a kind of punch units for stamped sheet metal can be provided and there is this punch units, it is easily assembling at short notice in the processes such as manufacture, maintenance and maintenance, and can obtain the reduction of manufacturing cost, maintenance cost etc.
Accompanying drawing explanation
Fig. 1 is the illustrative cutaway view of preferred embodiment of the present invention;
Fig. 2 is illustrative top view embodiment illustrated in fig. 1;
Fig. 3 is that explanatory is amplified in the part of drift shown in Fig. 1;
Fig. 4 is the illustrative cutaway view with the example of metallic plate pressing equipment embodiment illustrated in fig. 1;
Fig. 5 is the schematic diagram of explanation operation embodiment illustrated in fig. 4;
Fig. 6 is the schematic diagram of explanation operation embodiment illustrated in fig. 4;
Fig. 7 is the schematic diagram of explanation operation embodiment illustrated in fig. 4;
Fig. 8 is the schematic diagram of explanation operation embodiment illustrated in fig. 4;
Fig. 9 is the illustrative cutaway view of another preferred embodiment of the present invention;
Figure 10 is the illustrative cutaway view of another preferred embodiment of the present invention;
Figure 11 is that explanatory is amplified in the part of another preferable examples of drift of the present invention; And
Figure 12 is that explanatory is amplified in the part of another preferable examples of drift of the present invention.
The specific embodiment
Below, based on preferred embodiment shown in accompanying drawing, provide more detailed description of the present invention.It should be noted that and the invention is not restricted to these embodiment.
In Fig. 1 to 4, according to the metallic plate pressing equipment 1 of this embodiment, comprise: patrix keeper 2, it is by the risings such as hydraulic cylinder and reduction; Pressboard 3, it is fixed to patrix keeper 2; Compacting pad 5, it is suspended in patrix keeper 2 by elastic component 4; Stationary punch holder 7, it is as the punch units that is fixed to compacting pad 5 by bolt 6; Counterdie 9, the metallic plate 8 that stand punching press is placed on this counterdie 9; And punch die 10, it embeds in counterdie 9.
The elastic component 14 being arranged in hollow space 12 in the mode around minor diameter drift part 35 contacts with the ledge surface 23 of shell 11 at its 51 places, one end, and contact with the minor diameter outer surface 34 of drift and the annular step surface 53 between major diameter outer surface 38 at its other end 52 places, and elastic component 11 is suitable for vertically H and flexibly suppresses drift 13 towards initial position, thereby drift 13 is turned back to this initial position.
Punch die 10 have for the minor diameter drift part 35 of drift 13 insert that circular hole 61 is wherein connected with circular hole 61 and diameter than circular hole 61 greatly and be suitable for discharging stampings 62(referring to Fig. 8) circular hole 63.Circular hole 61 is limited by the cylindrical form interior surface 64 of punch die 10, and a ring edge 65 of cylindrical form interior surface 64 is by the cylindrical form interior surface 64 of punch die 10 and crossing edge limited perpendicular between an annular end face 66 of this cylindrical surface 64, and form square edge (referring to Fig. 5).
In above-mentioned pressing equipment 1, due to pressboard 3, compacting pad 5 and stationary punch holder 7 along with patrix keeper 2 vertically the decline of H decline, be placed on that metallic plate 8 on the upper surface 71 of counterdie 9 is pressed lower surface 72 compactings of pad 5 and be the upper surface 71 of counterdie 9 and the end face 66 of punch die 10 on the one hand by being clamped in, and be to fix between the lower surface 72 of compacting pad 5 and the end face 28 of shell 11 on the other hand, the decline of shell 11 is stopped thus, and further declines by the elasticity compacting by pressboard 3 opposing elastic components 14.When drift 13 declines, by projection 31, on metallic plate 8, form perforation 73, as shown in Figure 5.In the motion of metallic plate 8, be subject to inserting under the state of projection 31 restrictions of perforation 73, drift 13 further declines, and in the circular hole 61 of the minor diameter drift part 35 insertion punch dies 10 of drift 13, as shown in Figure 6.Thus, the metallic plate 8 contacting with the end face 33 of minor diameter drift part 35 is suppressed and declines together with minor diameter drift part 35 by this end face 33.In this decline process, metallic plate 8 between the annular edge 65 of one end of the restriction circular port 61 of the curved surface 42 of minor diameter drift part 35 and the cylindrical form interior surface 64 of punch die 10, is stretched and elongates by the annular edge 65 of the cylindrical form interior surface 64 of the curved surface 42 of minor diameter drift part 35 and punch die 10.Therefore, metallic plate 8 is pulled apart and breaks by the circumference at the annular edge 65 of punch die 10, as shown in Figure 7.When metallic plate 8 is after breaking in the 65 side places, annular edge of punch die 10, drift 13 is raised, and as shown in Figure 8, discharges stampings 62 by circular port 63 simultaneously.Therefore on metallic plate 8, form through hole 74.
According to the above-mentioned stationary punch holder 7 for stamped sheet metal 8, due to perimeter surface 21 in the minor diameter outer surface 34 of minor diameter drift part 35 of drift 13 and the minor diameter of shell 11 vertically H contact movably, and the interior perimeter surface 22 of the major diameter outer surface 38 of major diameter drift part 39 of drift 13 and the major diameter of shell 11 vertically H contacts movably, therefore drift 13 vertically H move, by perimeter surface 22 in perimeter surface 21 and major diameter in the minor diameter of shell, guided simultaneously.Thus, even slide block is not set between drift 13 and shell 11, drift 13 still vertically H move, and stationary punch holder 7 can insert elastic component 14 in the hollow space 12 that is attached in shell 11 and assemble simultaneously by drift 13 being inserted in the hollow space 12 that is attached in shell 11.Thus, in manufacture, maintenance with during safeguarding, can easily realize at short notice assembling, and can obtain the reduction of manufacturing cost and maintenance cost.
In above-mentioned stationary punch holder 7, although hollow space 12 is directly open to shell 11 outsides at end face 29 places of outer cover body 25, stationary punch holder 7 alternatively for example can form as shown in Figure 9.Shell 11 in stationary punch holder 7 shown in Fig. 9 also comprises annular element 82, this annular element 82 be fixed to outer cover body 25 vertically H other end 29 and there is manhole 81.Major diameter drift part 39 comprises major diameter drift body part 83 and ledge surface 53 and major diameter drift ledge 86 integratedly, in the major diameter outer surface 38 of major diameter drift body 83 and the major diameter of outer cover body 25 perimeter surface 22 vertically H contact movably, ledge surface 53 contacts with the other end 52 of elastic component 14, major diameter drift ledge 86 has cylindrical peripheral surface 85, its diameter is less than the diameter of each in perimeter surface 84 in the annular of the major diameter outer surface 38 of major diameter drift body part 83 and the limited hole 81 of annular element 82, and major diameter drift ledge 86 is projected into shell 11 through the through hole 81 of annular element 82 and from the other end 29 of the vertically H of shell 11.This layout is arranged to: by contacting of major diameter drift body part 83 and annular element 82, drift 13 is prohibited from the extraction of the hollow space 12 of shell 11.Major diameter drift ledge 86 has the end face 40 contacting with the lower surface 41 of pressboard 3, and the diameter of major diameter drift ledge 86 can be greater than or less than the diameter of minor diameter drift part 35.
And, for the punch retainer 7 shown in Fig. 9, be fixed to the end face 29 of outer cover body 25 at annular element 82 before, elastic component 14 and drift 13 inserted and be attached in the hollow space 12 of shell 11, subsequently annular element 82 is fixed to the end face 29 of outer cover body 25, can assembles stationary punch holder 7 thus.Therefore, in manufacture, maintenance with during safeguarding, can easily realize at short notice assembling, and can obtain the reduction of manufacturing cost and maintenance cost.
In the stationary punch holder 7 shown in Fig. 9, this layout is arranged to: annular element 82 is fixed to the end face 28 of outer cover body 25, thereby by the contacting of major diameter drift body part 83 and annular element 82, forbids that drift 13 is from hollow space 12 extractions of shell 11.But, alternatively, this layout also can be arranged to: as shown in figure 10, in the mode that connects, at outer cover body 25, vertically form on the other end 29 of H and draw part 91, and major diameter drift ledge 86 is made the hole 93 limiting through the interior perimeter surface 92 by drawing part 91 and is projected into shell 11 outsides, by contacting of major diameter drift body part 83 and drawing part 91, forbid that drift 13 is from hollow space 12 extractions of shell 11 thus.
And, for the stationary punch holder 7 shown in Figure 10, before form drawing part 91, elastic component 14 and drift 13 are inserted and be attached in the hollow space 12 of shell 11, and form and draw part 91 subsequently, assemble thus stationary punch holder 7.Therefore, assembling can be easily realized at short notice during manufacture, and the reduction of manufacturing cost can be obtained.
Along band, mention, in above-mentioned stationary punch holder 7, although projection 31 forms taper shape, but as shown in figure 11, projection 31 can alternatively form and comprise: be arranged on integratedly on an end face 33 of minor diameter drift part 35 and have the cylindrical part with circular base plane 95 and the circular top plane 96 of this end face 33 arranged concentric; And be arranged on integratedly the tapering part 98 in the circular top plane 96 of cylindrical part 97.Also alternately, as shown in figure 12, projection 31 can form and comprise: be arranged on integratedly the frusto-conical portion with vertex angle theta 1 99 on an end face 33 of minor diameter drift part 35, it has the circular top plane 96 that circular base plane 95 and diameter with this end face 33 arranged concentric are less than circular base plane 95; And be arranged on integratedly in the circular top plane 96 of this frusto-conical portion 99 and there is the conical portion 98 of the vertex angle theta 2 of vertex angle theta of being greater than 1.Above-mentioned projection 31 any can effectively prevent projection 31 after forming perforation 73 from this perforation extraction, and realize tearing and breaking of metallic plate 8 under the state that can reliably be limited in the movement of metallic plate 8.Particularly, for the projection 31 shown in Figure 12, owing to forming in advance the conical portion 98 of perforation 73, there is large vertex angle theta 2, can prevent its permanent deformation and effectively prevent a kind of like this conical portion 98 permanent deformations, thereby can prevent the permanent deformation of frustoconical part 99.Therefore, even in long-time use, also can avoid the possibility of the permanent deformation of projection 31, thereby can improve durability.
For above-mentioned pressing equipment 1, by vertical movable punching head 13, form through holes 74, but also can on the sloping portion of metallic plate 8, form through hole 74 by movable punching head 13 sideling.
The explanation of Reference numeral
1: pressing equipment
2: patrix keeper
3: pressboard
4: elastic component
5: compacting pad
6: bolt
7: stationary punch holder
8: metallic plate
9: counterdie
10: punch die
11: shell
12: hollow space
13: drift
14: elastic component
Claims (10)
1. for a punch units for stamped sheet metal, described punch units comprises: hollow shell; Be movably disposed within vertically the drift in the hollow space of shell; and elastic component, described elastic component is arranged in the hollow space of shell and flexibly suppresses described drift vertically towards initial position, wherein, described shell comprises perimeter surface in minor diameter, there is perimeter surface in the major diameter of the diameter larger than the diameter of perimeter surface in described minor diameter, and in described minor diameter the annular step surface between perimeter surface in perimeter surface and described major diameter, described hollow space is limited by perimeter surface in perimeter surface in described minor diameter and described major diameter, wherein said drift comprises projection, minor diameter drift part and major diameter drift part, on an axial end of described minor diameter drift part, described projection is set integratedly, and described minor diameter drift part perimeter surface in the described minor diameter of its outer surface place and described shell contacts vertically movably, another axial end of described minor diameter drift part is set on an axial end of described major diameter drift part integratedly, and described major diameter drift part perimeter surface in the major diameter at its major diameter outer surface place larger than the diameter of described minor diameter drift part and described shell contacts vertically movably, and described drift can be projected into housing exterior from an axial end of described shell in its minor diameter punch office, described drift is projected into housing exterior in its major diameter punch office from another axial end of described shell simultaneously, and wherein said projection is formed on an axial end of the minor diameter drift part that can be projected into from an axial end of described shell described housing exterior, and described elastic component contacts with the ledge surface of described shell at its place, one end, at its other end place, contact with the annular step surface between described major diameter outer surface with the described minor diameter outer surface of described drift.
2. the punch units for stamped sheet metal according to claim 1, it is characterized in that, in the major diameter of described shell, perimeter surface is formed with identical diameter at the ledge surface from shell in the scope of another axial end of shell, and the major diameter drift of described drift part is formed with identical diameter at the ledge surface from drift in the scope of another axial end of major diameter drift part, thereby described drift is suitable for extracting another axial end through shell out from the hollow space of shell.
3. the punch units for stamped sheet metal according to claim 1 and 2, it is characterized in that, the annular element that described shell comprises outer cover body and is fixed to another axial end of described outer cover body, described outer cover body has perimeter surface and the interior perimeter surface of major diameter in minor diameter, and described major diameter punch is divided and is comprised major diameter drift body part and major diameter drift ledge, described major diameter drift body part has the major diameter outer surface that in the major diameter with outer cover body, perimeter surface contacts vertically movably, described major diameter drift ledge has diameter than each the little outer surface of diameter in the interior perimeter surface of the limited hole of the major diameter outer surface of major diameter drift body and described annular element, and described major diameter drift ledge passes the through hole of described annular element and is projected into described shell from another axial end of described shell, thereby forbid that by major diameter drift body part and contacting of described annular element described drift extracts out from the hollow space of described shell.
4. the punch units for stamped sheet metal according to claim 1, it is characterized in that, described shell comprises outer cover body and with connected mode, is formed on the drawing part on another axial end of described outer cover body, described outer cover body has perimeter surface and the interior perimeter surface of major diameter in minor diameter, and described major diameter punch is divided and is comprised major diameter drift body part and major diameter drift ledge, described major diameter drift body part has the major diameter outer surface that in the major diameter with outer cover body, perimeter surface contacts vertically movably, described major diameter drift ledge has diameter than each the little outer surface of diameter in the interior perimeter surface of the major diameter outer surface of major diameter drift body and described drawing part, and the through hole that described major diameter drift ledge limits through the interior perimeter surface by described draw piece is also projected into described shell from another axial end of described shell, thereby by major diameter drift body part and describedly draw contacting of part and forbid that described drift extracts out from the hollow space of described shell.
5. according to the punch units for stamped sheet metal described in any one in claim 1 to 4, it is characterized in that, described shell is formed by resin material.
6. according to the punch units for stamped sheet metal described in any one in claim 1 to 5, it is characterized in that, described projection has taper shape or cone shape, and wherein, described projection is arranged on an end face of described minor diameter drift part integratedly at its place, baseplane.
7. according to the punch units for stamped sheet metal described in any one in claim 1 to 5, it is characterized in that, described projection comprises on an end face that is arranged on integratedly described minor diameter drift part and has the cylindrical part with circular base plane and the circular top plane of this end face arranged concentric; And be arranged on integratedly circular cone or the conical section in the circular top plane of cylindrical part.
8. according to the punch units for stamped sheet metal described in any one in claim 1 to 5, it is characterized in that, described projection comprises on an end face that is arranged on integratedly described minor diameter drift part and has the frusto-conical portion of the circular top plane that circular base plane and diameter with this end face arranged concentric be less than described circular base plane; And be arranged on integratedly circular cone or the conical section in the circular top plane of described frusto-conical portion.
9. according to the punch units for stamped sheet metal of any one in claim 1 to 8, it is used to metallic plate pressing equipment, wherein by projection punching press on metallic plate, bore a hole, and the small diameter portion of drift is inserted under the state of protrusions limit of punching the hole of further inserting punch die from the one end in the hole of punch die in the movement of metallic plate, the circumference of the ring edge of the cylindrical form interior surface by punch die breaks metallic plate thus, thereby on metallic plate, form through hole, the circumference of described ring edge limits the one end in the hole of punch die.
10. a metallic plate pressing equipment, described metallic plate pressing equipment comprises according to the punch units for stamped sheet metal described in claim 1 to 9 any one and has the punch die that inserts hole wherein for the drift of punch units.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011111466A JP5857446B2 (en) | 2011-05-18 | 2011-05-18 | Punch unit for punching thin metal plate and thin metal punching device equipped with this punch unit |
| JP2011-111466 | 2011-05-18 | ||
| PCT/JP2012/003178 WO2012157260A1 (en) | 2011-05-18 | 2012-05-16 | Punch unit for punching thin sheet metal, and thin sheet metal punching apparatus provided with punch unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103747892A true CN103747892A (en) | 2014-04-23 |
| CN103747892B CN103747892B (en) | 2016-09-14 |
Family
ID=47176609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280023641.8A Expired - Fee Related CN103747892B (en) | 2011-05-18 | 2012-05-16 | The punch units of stamped sheet metal and there is the stamped metal sheets equipment of this punch units |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5857446B2 (en) |
| CN (1) | CN103747892B (en) |
| WO (1) | WO2012157260A1 (en) |
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| JPS57193241A (en) * | 1981-05-22 | 1982-11-27 | Nissan Motor Co Ltd | Punching device |
| JPH07120545B2 (en) * | 1991-03-27 | 1995-12-20 | 山一電機株式会社 | Nested pressure connector |
| JP3039595B2 (en) * | 1993-12-10 | 2000-05-08 | 株式会社ヨコオ | Connector pin for electrical connection |
| JPH11723A (en) * | 1997-06-10 | 1999-01-06 | Hitachi Aic Inc | Die for blanking printed board |
| JP2004114251A (en) * | 2002-09-27 | 2004-04-15 | Hitachi Koki Co Ltd | Hammering tool |
| JP4527453B2 (en) * | 2004-06-21 | 2010-08-18 | 株式会社アマダ | Punch mold assembly |
| JP2008155216A (en) * | 2006-12-20 | 2008-07-10 | Oiles Ind Co Ltd | Punch for punching sheet metal, sheet metal punching device provided with the punch, and method therefor |
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2011
- 2011-05-18 JP JP2011111466A patent/JP5857446B2/en active Active
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2012
- 2012-05-16 CN CN201280023641.8A patent/CN103747892B/en not_active Expired - Fee Related
- 2012-05-16 WO PCT/JP2012/003178 patent/WO2012157260A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0947828A (en) * | 1995-08-04 | 1997-02-18 | Sumihiro Gotou | Punch and die for punching hole |
| JPH10263723A (en) * | 1997-03-19 | 1998-10-06 | Hitachi Aic Inc | Structure of press die |
| CN1780704A (en) * | 2003-04-30 | 2006-05-31 | 有限会社旺兹 | Punch for punching sheet metal and apparatus for punching sheet metal having the punch |
| JP2005254292A (en) * | 2004-03-12 | 2005-09-22 | Japan Uniflow Co Ltd | Turret punch press, and method for preventing trouble caused by sheared chip in the same |
| CN101687243A (en) * | 2007-05-22 | 2010-03-31 | 有限会社旺兹 | The mould of die-cut metallic plate and metallic plate blanking units with this mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103747892B (en) | 2016-09-14 |
| WO2012157260A1 (en) | 2012-11-22 |
| JP2012240076A (en) | 2012-12-10 |
| JP5857446B2 (en) | 2016-02-10 |
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Granted publication date: 20160914 Termination date: 20200516 |