CN101020265A - Screwhead punching pin locking method and screwhead punching die - Google Patents
Screwhead punching pin locking method and screwhead punching die Download PDFInfo
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- CN101020265A CN101020265A CN 200710079837 CN200710079837A CN101020265A CN 101020265 A CN101020265 A CN 101020265A CN 200710079837 CN200710079837 CN 200710079837 CN 200710079837 A CN200710079837 A CN 200710079837A CN 101020265 A CN101020265 A CN 101020265A
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- punching out
- punch holder
- driver flutes
- drift
- latch segment
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Abstract
The present invention discloses screwhead punching pin locking method and screwhead punching die, and relates to screwhead machining technology. The screwhead punching pin includes spacer block, sleeve seat, thread slot punching head, punching head jacket, punching head seat and punching pin locking device. The design with separable thread slot punching head and punching head seat makes it possible to reuse the punching head seat repeatedly and to repair the worn thread slot punching head for reuse, and this results in saving in expensive material, saving in setup time and raising in production efficiency.
Description
Technical field
The present invention relates to the locking method and the punching out mould of a kind of driver flutes punching out head of screw terminal, is the employed mould of metal stamping in a kind of machining, is the tighten up a screw mould of cutter groove of a kind of special punching out head of screw.
Background technology
The manufacturing of screw itself is very ripe, is that a kind of super large is criticized mass-produced process.Wherein employed mould is equally very ripe.Wherein the mould of the driver flutes on punching out screw terminal and the screw terminal is normally used is a whole block material, as shown in Figure 1.Mould is a column type, the top is identical driver flutes punching out head with the driver flutes shape, the rear end is the column type of a diameter greater than screw terminal, the position that driver flutes punching out head is connected with column type is the concave surface that matches with the screw terminal shape, and this cylinder with concave surface can be described as the mould of screw terminal.Not having concave surface, Fig. 2～Figure 11 when certainly, making flat-bed machine head of screw or SOC.HD. cap screw is the grinding tool of making several shape driver flutes.The mould of Shi Yonging is disposable like this, in case driver flutes punching out head wearing and tearing, entire die is promptly scrapped, and waste greatlyyer, and especially the material of mould is the high-speed steel or the steel alloy of costliness, and the degree of its waste is well imagined.
Summary of the invention
Goal of the invention of the present invention is: propose a kind of novel screw terminal diel, the punching out head of punching out driver flutes is separated with the cylinder at rear portion, and a kind of locking method of lock screw cutter groove punching out head proposed, driver flutes punching out head is fixed in the cylindrical drift cover of replacement easily, screwdriver trough wearing and tearing back is as long as change driver flutes punching out head, the cylindrical drift cover of the replacement of back can continue to use, and has saved material greatly, has improved operating efficiency.
The object of the present invention is achieved like this: the locking method of a kind of driver flutes punching out head of screw terminal, comprise: driver flutes punching out head, columniform drift cover with internal conical surface, the truncated cone-shaped punch holder that the center is porose, cushion block, the block set that is connected with the drift external threading, it is characterized in that: the central axis with punch holder is the center, in a plane, be uniform-distribution with locking device in a circumferential direction perpendicular to described punch holder central axis, described locking device comprises locking hole and the latch segment that can slide in locking hole, the length of described latch segment slightly is longer than the length of locking hole; Described locking device follows these steps to lock described driver flutes punching out head: the centre bore of described driver flutes punching out head being put into punch holder, because latch segment slightly is longer than locking hole, latch segment has sub-fraction to give prominence to outside the punch holder outer circumference surface, the mode that punch holder is harmonious by the inside and outside circle conical surface is put into the drift cover, cushion block is put in the back, back at cushion block screws with screwed block set, promote cushion block during the block set precession, cushion block and then promotion punch holder travel forward, because all latch segments outside the punch holder outer circumference surface are given prominence in the effect extruding of drift cover internal conical surface, each latch segment to the central axial direction extruding of punch holder, is fixed on the extruding of driver flutes punching out head middle simultaneously.
A kind of driver flutes punching out mould of screw terminal comprises: cushion block, block set, driver flutes punching out head, drift cover, punch holder, drift locking device.Described driver flutes punching out coaxial being installed in the punch holder, the drift that is installed in that described punch holder is coaxial overlaps the front portion, and the drift locking device is arranged on the punch holder, and punch holder is propped up by described cushion block, cushion block is propped up by described block set, and block set is connected with the drift external threading.
Described driver flutes punching out head is a size shaft-like cylinder unanimous between the higher and lower levels except that the punching out centrum on top.Described drift cover outer shape is a cylindrical body, and front end is bigger, and the rear end is less, and there is tangible transition front end and rear end; There is a centre bore central axis position along drift cover column type body, and centre bore is less at drift cover point diameter, and the rear end diameter is bigger, and the front end formation bellmouth at centre bore has internal thread in the rear end of centre bore.Described punch holder is a cone, along the central axis of cone centre bore is arranged, and is evenly distributed with the drift locking device around centre bore.Described drift locking device comprises: be evenly distributed on a plurality of locking holes around the punch holder centre bore, be inserted in locking hole in the quantity latch segment identical with locking hole.Described latch segment is the rectangle sheet, wherein has an opposing end surface not parallel, and the angle that adapts with the punch holder coning angle is arranged.Described latch segment is cylindrical, and columniform two planar end surfaces are not parallel, and the angle that adapts with the punch holder coning angle is arranged.Described latch segment and locking hole are more than one.
The beneficial effect that the present invention produces is: because the design of having adopted driver flutes punching out head to separate with punch holder, the driver flutes punching out head that just will be easy to wear and tear separated than long punch holder with the life-span, and punch holder can be used repeatedly.On the other hand,, when punching out head front end the most easy to wear weares and teares,, the position of wearing and tearing is gone out, can use again as long as the punching out head is pulled down because the punching out head is a size shaft-like cylinder unanimous between the higher and lower levels.Punching out head and punch holder can be used repeatedly like this, have saved expensive material greatly.Compare with traditional punching out head, punching out of the present invention is firm first watch.Because the little rear end of traditional punching out front end is big, there is a tangible step two parts junction, as shown in Figure 1, concentrates a very easy fracture in junction in punching course at this junction stress.And punching out head of the present invention is a column unanimous between the higher and lower levels, has solved the problem that stress is concentrated, so more firm first watch than traditional punching out at all.Longer service life.Because locking device utilized the conical surface, the dismounting of punching out head is very convenient, has saved production time, has improved productivity ratio.It is meaningful especially that such time saving is criticized a large amount of production for this super large of screw.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the driver flutes punching out mould assembling schematic diagram of traditional head of screw;
Fig. 2～Figure 11 is the driver flutes punching out mould schematic diagram of the head of screw of traditional several shapes, Fig. 2,4,6,8, the 10th wherein, front view, Fig. 3,5,7,9,11 vertical views;
Figure 12 is the principle schematic of the embodiment of the invention one and the assembling schematic diagram of embodiment two;
Figure 13 is that the punching out head is installed in schematic diagram in the punch holder among the embodiment one;
Figure 14 is the front view of a kind of hexagon driver flutes punching out head among the embodiment two;
Figure 15 is the profile of a kind of hexagon driver flutes punching out head among the embodiment two, is the A-A profile of Figure 14;
Figure 16 is the front view of a kind of Philips screwdriver groove punching out head among the embodiment two;
Figure 17 is the profile of a kind of Philips screwdriver groove punching out head among the embodiment two, is the B-B profile of Figure 16;
Figure 18 is the front view of punch holder among the embodiment two;
Figure 19 is the cutaway view of punch holder among the embodiment two, is the C-C cutaway view among Figure 20;
Figure 20 is the vertical view of punch holder among the embodiment two;
Figure 21 is the latch segment front view of locking device among the embodiment two;
Figure 22 is the cutaway view of drift cover among the embodiment two;
Figure 23 is the front view of punch holder among the embodiment three;
Figure 24 is the cutaway view of punch holder among the embodiment three, is the D-D cutaway view among Figure 25;
Figure 25 is the vertical view of punch holder among the embodiment three;
Figure 26 is the latch segment front view of embodiment three locking devices;
Figure 27 is the vertical view of punch holder among the embodiment four;
Figure 28 is the vertical view of punch holder among the embodiment five.
The specific embodiment
Embodiment one:
Figure 12 is the principle schematic of present embodiment.Present embodiment comprises: driver flutes punching out 1, driver flutes punching out head is a size cylindrical body unanimous between the higher and lower levels.The porose truncated cone-shaped punch holder 3 in columniform drift cover 5, center with internal conical surface, cushion block 4, the block set 6 that is connected with the drift external threading.The coning angle of its outer conical surface of punch holder of truncated cone-shaped equates that with the female cone angle of drift cover middle hole can be circular, also can be other shape, normally a shape that meets a punching out cross section.For example, the cross sectional shape of punching out head is six prisms, and then the shape of drift cover centre bore also is six prisms, as shown in figure 27; The cross sectional shape of punching out head is a cross, and then the shape of the centre bore of drift cover also is a cross, as shown in figure 28.The punching out of mentioning in a this patent cross section is perpendicular to the cross section of punching out head along the center line on the punching out direction of motion.Central axis with punch holder is the center, in a plane, be uniform-distribution with drift locking device 2 in a circumferential direction perpendicular to described punch holder central axis, locking device comprises locking hole and the latch segment that can slide in locking hole, the length of latch segment slightly is longer than the length of locking hole, as shown in figure 13.The number of locking device is decided as required, if the cross section of the centre bore of drift cover and the punching out head that matches with centre bore all is circular, then locking device can be more than two, or occurs in pairs, can certainly be three or five.If the drift cover is criss-cross with the cross sectional shape of punching out head, locking device is preferably four so, as shown in figure 28.If the drift cover is six prisms with the cross sectional shape of punching out head, then locking device can be three, four or six, and shown in Figure 27 is the situation of three locking devices.
Locking device follows these steps to lock screw cutter groove punching out head: the centre bore of described driver flutes punching out head being put into punch holder, because latch segment slightly is longer than locking hole, latch segment has sub-fraction to give prominence to outside the punch holder outer circumference surface, as shown in figure 13, the mode that punch holder is harmonious by the inside and outside circle conical surface is put into the drift cover, cushion block is put in the back, back at cushion block screws with screwed block set, promote cushion block during the block set precession, cushion block and then promotion punch holder travel forward, because all latch segments outside the punch holder outer circumference surface are given prominence in the effect extruding of drift cover internal conical surface, each latch segment to the central axial direction extruding of punch holder, is fixed on the extruding of driver flutes punching out head middle simultaneously.
Embodiment two:
Figure 12 is the assembling schematic diagram of present embodiment, and driver flutes punching out 1 is a size shaft-like cylinder unanimous between the higher and lower levels, shown in Figure 14～17 except that the punching out centrum on top.That is to say what shape is the driver flutes of wanting punching out be, the shaft-like cylinder of driver flutes punching out head is exactly any shape.For example, driver flutes is criss-cross, and the shaft-like cylinder of driver flutes punching out head is exactly criss-cross so, shown in Figure 16～17; If driver flutes is six prismatics, shaft-like cylinder six prismatics of driver flutes punching out head, shown in Figure 14～15, or the like.She Ji purpose is to reuse the shaft-like cylinder of driver flutes punching out head like this, in case the front end wearing and tearing can grind off wearing part by grinding.As long as at the rear portion of shaft-like cylinder some small cushion blocks of pad, just can continue to have used when installing.
Whole driver flutes punching out mould is to install like this: driver flutes punching out 1 coaxial being installed in the punch holder 3, the punch holder 3 coaxial drifts that are installed in overlap 5 front portion, drift locking device 2 is arranged on the punch holder 3, punch holder is propped up by cushion block 4, cushion block 4 is propped up by block set 6, block set 6 is threaded with drift cover 5, as shown in figure 12.When block set 6 screws, by cushion block 4 thrust that makes progress is passed to punch holder 3, punch holder 3 and drift cover 5 are the taper shape that matches, thrust by block set 6 generations, the latch segment 202 of locking device produces radial thrust under the effect of the conical slant of drift cover 5, the shaft-like cylinder of driver flutes punching out head is firmly blocked.Guarantee that driver flutes punching out head in the course of the work can be unmovable and come off.
The process of dismounting driver flutes punching out head is also very convenient.As long as block set 6 is unscrewed, and needn't pull down, beat punch holder gently, driver flutes punching out head just can be removed easily, changes new just can continuing and has gone into operation.The driver flutes punching out head of changing continues to use through installing after the reconditioning again.
Embodiment three:
The present embodiment others are identical with embodiment one, and different is: the latch segment 202 of the employed locking device of present embodiment is for cylindrical, and corresponding locking hole 201 on punch holder also is a circular port, shown in Figure 22～25.Columniform both ends of the surface are not parallel, an angle α arranged, as shown in figure 25.The advantage of present embodiment is that processing is more convenient, and manufacturability is better.The latch segment of locking device can also have other form.For example square or rhombus or the like.
Embodiment four:
The cross sectional shape of the punch holder of present embodiment and punching out head is a hexagon, and locking device has three latch segments and corresponding three locking holes, as shown in figure 27.Four or six locking devices can be arranged for the punch holder centre bore of hexagon and the cross section of punching out head, good effect can be reached equally.
Embodiment five:
The punch holder centre bore of present embodiment and the cross sectional shape of punching out head are cross, and locking device has four latch segments and corresponding four locking holes, as shown in figure 28.
Claims (9)
1. the locking method of a kind of driver flutes punching out head of screw terminal, comprise: the porose truncated cone-shaped punch holder of driver flutes punching out head, columniform drift cover, center with internal conical surface, cushion block, the block set that is connected with the drift external threading, it is characterized in that: the central axis with punch holder is the center, in a plane, be uniform-distribution with locking device in a circumferential direction perpendicular to described punch holder central axis, described locking device comprises locking hole and the latch segment that can slide in locking hole, the length of described latch segment slightly is longer than the length of locking hole; Described locking device follows these steps to lock described driver flutes punching out head: the centre bore of described driver flutes punching out head being put into punch holder, because latch segment slightly is longer than locking hole, latch segment has sub-fraction to give prominence to outside the punch holder outer circumference surface, the mode that punch holder is harmonious by the inside and outside circle conical surface is put into the drift cover, cushion block is put in the back, back at cushion block screws with screwed block set, promote cushion block during the block set precession, cushion block and then promotion punch holder travel forward, because all latch segments outside the punch holder outer circumference surface are given prominence in the effect extruding of drift cover internal conical surface, each latch segment to the central axial direction extruding of punch holder, is fixed on the extruding of driver flutes punching out head middle simultaneously.
2. a kind of driver flutes punching out mould of screw terminal, comprising: cushion block (4), block set (6) is characterized in that driver flutes punching out head (1), drift cover (5), punch holder (3), drift locking device (2); What described driver flutes punching out head (1) was coaxial is installed in the punch holder (3), described punch holder (3) is coaxial is installed in drift cover (5) front portion, the drift locking device is provided with (2) on punch holder (3), punch holder (3) is propped up by described cushion block (4), cushion block (4) is propped up by described block set (6), and block set (6) is threaded with drift cover (5).
3. a kind of driver flutes punching out mould of screw terminal according to claim 2 is characterized in that, described driver flutes punching out head (1) is a size shaft-like cylinder unanimous between the higher and lower levels except that the punching out centrum on top.
4. a kind of driver flutes punching out mould of screw terminal according to claim 2 is characterized in that, described drift cover (5) outer shape is a cylindrical body, and front end is bigger, and the rear end is less, and there is tangible transition front end and rear end; There is a centre bore central axis position along drift cover column type body, and centre bore is less at drift cover point diameter, and the rear end diameter is bigger, and the front end formation bellmouth at centre bore has internal thread in the rear end of centre bore.
5. a kind of driver flutes punching out mould of screw terminal according to claim 2 is characterized in that described punch holder (3) is a cone, along the central axis of cone centre bore is arranged, and is evenly distributed with drift locking device (2) around centre bore.
6. according to a kind of driver flutes punching out mould of claim 2 or 5 described screw terminals, it is characterized in that, described drift locking device (2) comprising: be evenly distributed on a plurality of locking holes (201) around the punch holder centre bore, be inserted in locking hole in the quantity latch segment (202) identical with locking hole.
7. a kind of driver flutes punching out mould of screw terminal according to claim 6, it is characterized in that, described latch segment (202) is the rectangle sheet, wherein has an opposing end surface not parallel, and the formed angle of two opposite end faces is 1/2 of punch holder (a 3) coning angle.
A kind of driver flutes punching out mould of 8 screw terminals according to claim 7 is characterized in that described latch segment (202) is cylindrical, and columniform two planar end surfaces are not parallel,, the formed angle of two opposite end faces is 1/2 of punch holder (a 3) coning angle.
9. a kind of driver flutes punching out mould of screw terminal according to claim 6 is characterized in that, described latch segment (202) and locking hole (201) are more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710079837A CN100574951C (en) | 2007-02-15 | 2007-02-15 | The locking method and the punching out mould of a kind of driver flutes punching out head of screw terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710079837A CN100574951C (en) | 2007-02-15 | 2007-02-15 | The locking method and the punching out mould of a kind of driver flutes punching out head of screw terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101020265A true CN101020265A (en) | 2007-08-22 |
| CN100574951C CN100574951C (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710079837A Expired - Fee Related CN100574951C (en) | 2007-02-15 | 2007-02-15 | The locking method and the punching out mould of a kind of driver flutes punching out head of screw terminal |
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| CN (1) | CN100574951C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480924A (en) * | 2013-08-30 | 2014-01-01 | 陕西天达航空标准件有限公司 | Machining method and machining device for bolt round corner |
| CN104307993A (en) * | 2014-10-22 | 2015-01-28 | 意瑞纳米科技(昆山)有限公司 | Round punch die |
-
2007
- 2007-02-15 CN CN200710079837A patent/CN100574951C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480924A (en) * | 2013-08-30 | 2014-01-01 | 陕西天达航空标准件有限公司 | Machining method and machining device for bolt round corner |
| CN103480924B (en) * | 2013-08-30 | 2015-10-21 | 陕西天达航空标准件有限公司 | The processing method of bolt round corner and processing unit (plant) |
| CN104307993A (en) * | 2014-10-22 | 2015-01-28 | 意瑞纳米科技(昆山)有限公司 | Round punch die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100574951C (en) | 2009-12-30 |
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Granted publication date: 20091230 Termination date: 20210215 |