CN2471497Y

CN2471497Y - Oscillating cutting die

Info

Publication number: CN2471497Y
Application number: CN 01237410
Authority: CN
Inventors: 熊金生
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-19
Filing date: 2001-04-19
Publication date: 2002-01-16
Anticipated expiration: 2011-04-19

Abstract

The utility model discloses a swing lancing die, which comprises a male die and a female die fixed on an upper die base (2) and a lower die base (9) respectively; wherein, the upper die base (2) is provided with a work-piece screw-down notch limiting device; a work-piece screw-down notch shifting device shaped like a Chinese character ''Hui'' is arranged at the corresponding position on the lower die base (9); the work-piece screw-down notch limiting device comprises a baffle (8) and a locating pin (7). The work-piece screw-down notch shifting device is provided with four cone-shaped conducting bars (12) and a guide rail (13) with a concavo convex tooth. The utility model has the advantages of simple notch processes, high precision and the application to the primary notch of the mouth of box-shaped pieces.

Description

Swing notch die

The utility model relates to a kind of swing notch die, the swing notch die of an otch moulding of particularly a kind of box part oral area.

Shear at present both at home and abroad the box part oral area and often divide several times and cut, otch has two shortcomings like this, and at first operation is many, prolongation man-hour, causes manpower financial capacity's wasting of resources; Secondly otch repeatedly, datum level disunity and cause four limits of otch not at grade, precision is not high.

The purpose of this utility model provides the swing notch die that a kind of otch operation is simple, cut precision is high.

The swing notch die of the utility model, divide punch and die two large divisions, be separately fixed on upper bolster and the die shoe, upper bolster is connected with die shank, upper bolster is provided with liner plate, fixed head, punch from top to bottom successively, and upper bolster is provided with guide pin bushing, and the corresponding position of die shoe and guide pin bushing is provided with guide pillar, upper bolster is provided with workpiece and depresses the otch stopping means, and the corresponding section is provided with Back Word type workpiece and depresses shift unit on the die shoe.

Workpiece is depressed the otch stopping means and is made up of plate washer and alignment pin, alignment pin is fastened on the fixed head, plate washer by the bolt positioning sleeve around punch, plate washer and bolt are tightening state, bolt card is in the groove of upper bolster and with it upper and lower displacement can take place, spring housing is on bolt, and the spring upper end contacts with the liner plate lower surface; Workpiece is depressed shift unit and is fixed on the die shoe by fore-set, lower die-sleeve is the external surrounding frame of Back Word type, be fixed on the die shoe, the top of lower die-sleeve is fixed with limited block, the inboard of limited block is provided with the sliver of four tapers, in the inside casing of Back Word type from being followed successively by die, top board, top board and liner plate, in the die with upper bolster on the alignment pin corresponding section be provided with compression leg, connect by spring between top board and the top board, following top board is fixed on the liner plate, the outside of die and sliver corresponding section are provided with guide rail, and guide rail is provided with shaggy tooth; Lower die-sleeve is positioned on the die shoe by pin; Die shoe is provided with the workpiece returning device, and it is fastened on rubber on the die shoe by fastening bolt.

Owing to adopt as above technical scheme, when the dip mold handle, the alignment pin of upper bolster presses down the compression leg in the die shoe, spring in two top boards of compression leg compression, when two top boards fit together, the last plane of the lower plane of punch and die presses down when later on that punch moves down with die in the process at grade, and the displacement of above-below direction no longer takes place.And in the process of pressing down, sliver and guide rail generation relative displacement, the displacement of sliver extruding guide rail left-right and front-back, box part is subjected to displacement with respect to punch, punch is about to the box part wall and presses down disposable excision in the stroke same, saved operation, and when excision benchmark identical, guaranteed the excision precision.

The utility model is further described below in conjunction with the drawings and specific embodiments.

Fig. 1 is a structural representation of the present utility model

Fig. 2 is a working state figure of the present utility model

Embodiment: according to illustrated in figures 1 and 2, the swing notch die of the utility model, it is made up of punch and die two parts, and punch partly is provided with workpiece and depresses the otch stopping means, comprises die shank 1, upper bolster 2, liner plate 5, fixed head 6, punch 3.Upper bolster 2 is provided with guide pin bushing.Be connected with die shank 1 on the upper bolster 2.Punch 3 is fixed on the upper bolster 2 by liner plate 5, fixed head 6, be with spring on the bolt 4, bolt 4 passes liner plate 5, fixed head 6 is positioned in the groove of upper bolster 2, the nut and the groove top of bolt 4 have certain clearance, therefore bolt 4 can move up and down with liner plate 5, fixed head 6 and upper bolster 2, and the upper end of spring contacts with the lower surface of liner plate 5.The end of bolt 4 is fastened with plate washer 8, and plate washer 8 middle parts are provided with a hole, and both sides respectively are provided with a groove, and punch 3 is arranged in the hole of plate washer 8, and both lower ends are in same horizontal plane.Alignment pin 7 is fastened on the fixed head 6, and the other end stretches in the groove on the plate washer 8, and is terminal concordant with plate washer 8.Die partly is provided with the workpiece of Back Word type and depresses shift unit, lower die-sleeve 11 is the external surrounding frame that Back Word type workpiece is depressed shift unit, lower die-sleeve 11 is fixed on the die shoe 9 by screw, is located by pin 25 at the diagonal angle of lower die-sleeve 11, and the location accurately during with the assurance otch.The top of lower die-sleeve 11 is fixed with four limited blocks 10 by screw, and the inboard of limited block 10 is provided with the sliver 12 of taper.Be provided with guide pillar with the guide pin bushing corresponding section on the die shoe 9.The workpiece of Back Word type is depressed the shift unit inside casing and is comprised die 14, top board 15, top board 16, liner plate 17 and fore-set 18.Die 14 is fixed on the top board 15, is provided with compression leg 26 with alignment pin 7 corresponding sections on the die 14, is provided with spring between top board 15 and the top board 16, and top board 16 is fixed on the liner plate 17, and liner plate 17 is fixed on the die shoe 9 by fore-set 18.The outside of die 14 and sliver 12 corresponding sections are provided with guide rail 13, and the outside of guide rail 13 is erose.Bolt 21 is fixed on rubber 20 on the die shoe 9, and rubber 20 is clipped between clamping plate 19 and the clamping plate 24.Punch is partly depressed during work, guide pillar enters guide pin bushing, guarantee that punch 3 enters the workpiece oral area smoothly, alignment pin 7 withstands the compression leg 26 of die part when continuing to press down, by the spring between compression leg 26 compression top boards 15 and the top board 16, make top board 15 and top board 16 to the position, dead point, like this because plate washer 8 has withstood the workpiece dead-centre position of also having arrived suitable for reading, the last plane of the lower plane of punch 3 and die 14 at grade at this moment, and afterwards press down that their relative position no longer takes place in the process, moving of following direction, thereby the distance on last plane to the last plane of die 14 of top board 15 promptly is the height of the designed requirement of workpiece at this moment.When integral body continued to press down, because the relativity of sliver 12 and guide rail 13, the displacement of direction was all around taken place by sliver 12 extruding in workpiece, and on the throne moving past in the journey acts on punch 3, cut oral area by punch 3.After the otch process was finished, owing to the effect of rubber 20 in the process of pressing down by fore-set 18 is compressed, do not have the effect rubber 20 of power to return back to original state this moment, and its elastic force effect makes die partly get back to the home position.Because alignment pin 7 is no longer oppressed compression leg 26, top board 15 is pushed to the workpiece on the top board 15 because the spring force effect is risen simultaneously, and workpiece is suitable for reading like this exposes the oral area of die 14 and can easily be taken out, and enters next otch operation.

Claims

1, a kind of swing notch die, divide punch and die two large divisions, be separately fixed on upper bolster (2) and the die shoe (9), upper bolster (2) is connected with die shank (1), upper bolster (2) is provided with liner plate (5), fixed head (6), punch (3) from top to bottom successively, upper bolster (2) is provided with guide pin bushing, die shoe (9) is provided with guide pillar with the corresponding position of guide pin bushing, it is characterized in that upper bolster (2) is provided with workpiece and depresses the otch stopping means, the last corresponding section of die shoe (9) is provided with Back Word type workpiece and depresses shift unit.

2, swing notch die according to claim 1, it is characterized in that workpiece depresses the otch stopping means and be made up of plate washer (8) and alignment pin (7), alignment pin (7) is fastened on the fixed head (6), plate washer (8) by bolt (4) positioning sleeve at punch (3) all around, plate washer (8) is tightening state with bolt (4), bolt (4) is stuck in the groove of upper bolster (2), there is certain distance the top and the groove upper surface of bolt (4), spring housing is on bolt (4), and the spring upper end is contact condition with liner plate (5) lower surface.

3, swing notch die according to claim 1, it is characterized in that workpiece depresses shift unit and be fixed on the die shoe (9) by fore-set (18), lower die-sleeve (11) is the external surrounding frame of Back Word type, be fixed on the die shoe (9), the top of lower die-sleeve (11) is fixed with limited block (10), the inboard of limited block (10) is provided with the sliver (12) of four tapers, in the inside casing of Back Word type from being followed successively by die (14), top board (15), top board (16) and liner plate (17), be provided with compression leg (26) with alignment pin (7) corresponding section in the die (14), connect by spring between top board (15) and the top board (16), top board (16) is fixed on the liner plate (17), the outside of die (14) and sliver (12) corresponding section are provided with guide rail (13), and guide rail (13) is provided with shaggy tooth.

4, swing notch die according to claim 3 is characterized in that lower die-sleeve (11) is positioned on the die shoe (9) by pin (25).

5, swing notch die according to claim 3 is characterized in that die shoe (9) is provided with the workpiece returning device, and it is fastened on rubber (20) on the die shoe (9) by fastening bolt (21).