CN207156007U

CN207156007U - A kind of new knife edge structure

Info

Publication number: CN207156007U
Application number: CN201721095487.1U
Authority: CN
Inventors: 王春生; 贾志江; ***
Original assignee: Suzhou Anjie Technology Co Ltd
Current assignee: Suzhou Anjie Technology Co Ltd
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2018-03-30
Anticipated expiration: 2027-08-30

Abstract

The utility model provides a kind of new knife edge structure, and it can complete the profile punching of wheat drawing and the processing of outward flange rounding simultaneously, and it make it that the processing yield that wheat is drawn is high and high in machining efficiency.Its shape of cross section includes and the coupling part of tool rest, the point of a knife side that both sides are closed up in opposite directions, the cusp of point of a knife and the coupling part it is vertical to line be line of demarcation, two point of a knife sides are arranged positioned at the both sides in the line of demarcation respectively, specially the first point of a knife side, second point of a knife side, wherein the first point of a knife side includes cutting point of a knife side, first fillet, second fillet, transition point of a knife side, the cutting point of a knife side, the gradient relative to line of demarcation of transition point of a knife side is consistent with the profile side gradient that wheat to be formed is drawn, one end of the close coupling part of the cutting point of a knife side connects the initiating terminal of first fillet, the initiating terminal of smooth connection second fillet in end of first fillet.

Description

A kind of new knife edge structure

Technical field

It the utility model is related to the technical field that wheat draws product cutting, specially a kind of new knife edge structure.

Background technology

Existing wheat draws the punching of product, in order to ensure that wheat is drawn and the overall aesthetic degree of product is, it is necessary in the outside that wheat is drawn Carry out oblique angle processing and carry out rounding processing in outer peripheral Outboard Sections, prior art needs such a wheat drawing in road wheel The positioning processing that the metal die of wide punching press+outward flange rounding coordinates could obtain required shape, in process, The secondary positioning of carry out instrument is needed, it produces position error unavoidably so that the fraction defective that wheat is drawn is high, and the combination of two instruments Positioning wastes time and energy, such that processing efficiency is low.

The content of the invention

In view of the above-mentioned problems, the utility model provides a kind of new knife edge structure, it can complete wheat drawing simultaneously Profile is punched and the processing of outward flange rounding, and it make it that the processing yield that wheat is drawn is high and high in machining efficiency.

A kind of new knife edge structure, it is characterised in that：Its shape of cross section includes and the coupling part of tool rest, both sides phase To the point of a knife side of closing in, the cusp of point of a knife and the coupling part it is vertical to line be line of demarcation, two point of a knife sides Face is respectively positioned at the both sides in line of demarcation arrangement, specially the first point of a knife side, the second point of a knife side, wherein the first point of a knife side Face includes cutting point of a knife side, the first fillet, the second fillet, transition point of a knife side, the cutting point of a knife side, the phase of transition point of a knife side It is consistent with the profile side gradient that wheat to be formed is drawn for the gradient in line of demarcation, the close coupling part of the cutting point of a knife side The initiating terminal of one end connection first fillet, the initiating terminal of smooth connection second fillet in end of first fillet, One end of the remote coupling part of the smooth connection transition point of a knife side in end of second fillet, the transition point of a knife The other end of side connects the coupling part, and the height of the cusp to the end of first fillet is equal to what wheat to be cut was drawn Thickness, the shape of first fillet are identical with the rounding angular shape that wheat after shaping is drawn.

It is further characterized by：

First fillet is specially one section of circular arc towards coupling part indent, and second fillet is specially to deviate from institute State one section of circular arc of coupling part evagination, the initiating terminal smooth transition of the end of first fillet and second fillet, no Boundary line impression is produced, second fillet does not interfere the end face shaping that wheat to be formed is drawn；

Preferably, the second point of a knife side is overall inclined-plane, the second point of a knife side relative to line of demarcation into Angle is 20 °, and the cutting point of a knife side, the angulation relative to line of demarcation of transition point of a knife side are 15 °；

The point of a knife to the height of the end of the first fillet is 0.5mm；

The radius of first fillet is 0.3mm.

After adopting the above technical scheme, because the shape of cross section of the knife edge includes incisory point of a knife and rounding simultaneously First fillet at angle, and cusp to the height of the end of the first fillet is equal to the thickness that wheat to be cut is drawn, it to use the knife Wheat can be drawn one-shot forming by the instrument of cutting edge of a knife or a sword structure, and it can complete the profile punching of wheat drawing and the processing of outward flange rounding simultaneously, It make it that the processing yield that wheat is drawn is high and high in machining efficiency.

Brief description of the drawings

Fig. 1 is the cross-sectional structure schematic diagram of the knife edge of the present utility model；

Title in figure corresponding to sequence number is as follows：

Coupling part 1, cusp 2, line of demarcation 3, the first point of a knife side 4, cutting point of a knife side 41, the first fillet 42, second circle Angle 43, transition point of a knife side 44, the second point of a knife side 5.

Embodiment

A kind of new knife edge structure, is shown in Fig. 1：Its shape of cross section includes and coupling part 1, the both sides of tool rest are received in opposite directions The point of a knife side of mouth, the cusp 2 of point of a knife and the vertical of coupling part 1 are line of demarcation 3 to line, and two point of a knife sides are located at respectively The both sides arrangement in line of demarcation 3, specially the first point of a knife side 4, the second point of a knife side 5, cuts wherein the first point of a knife side 4 includes Cutter point side 41, the first fillet 42, the second fillet 43, transition point of a knife side 44, cutting point of a knife side 41, transition point of a knife side 44 it is relative Gradient in line of demarcation 3 is consistent with the profile side gradient that wheat to be formed is drawn, and the one of the close coupling part 1 of cutting point of a knife side 41 The initiating terminal of the first fillet 42 of end connection, the initiating terminal of the second fillet 43 of the smooth connection in end of the first fillet 42, the second fillet One end of the remote coupling part 1 of the 43 smooth connection transition point of a knife side 44 in end, the other end connection of transition point of a knife side 44 connect Socket part point 1, the height H of the end of the fillet of cusp 2 to the first 42 are equal to the thickness that wheat to be cut is drawn, the shape of the first fillet 42 and The rounding angular shape that wheat is drawn after shaping is identical.

First fillet 42 is specially one section of circular arc towards the indent of coupling part 1, and the second fillet 43 is specially away from connection The initiating terminal smooth transition of one section of circular arc of the evagination of part 1, the end of the first fillet 42 and the second fillet 43, do not produce boundary line Impression, the second fillet 43 do not interfere the end face shaping that wheat to be formed is drawn；

Specific embodiment：As the Mai Lashi for punching press thickness 0.5mm, the second point of a knife side 5 is overall inclined-plane, second Point of a knife side 5 is 20 ° relative to the angulation α in line of demarcation 3, cutting point of a knife side 41, transition point of a knife side 44 relative to line of demarcation 3 It it is 15 ° into angle beta；Cusp to the height H of the end of the first fillet 42 be 0.5mm；The radius R of first fillet 42 is 0.3mm, cusp 2 to the height h of the inner face of coupling part 1 be 1.5mm, and it can disposably complete the cutting of product edge chamfering and profile, punching press Thickness 0.5mm wheat, which is drawn, can accomplish that product edge angle is stable with fillet, realize the product edge angle that cuts out for 72 ° ± 5 °, edge R angles size is 0.3 ± 0.05mm.

Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created Preferred embodiment, it is impossible to be considered as the practical range for limiting the utility model creation.All created according to the utility model is applied Equivalent change that scope is made all should be belonged to still within this patent covering scope with improving etc..

Claims

A kind of 1. new knife edge structure, it is characterised in that：Its shape of cross section includes and coupling part, the both sides of tool rest are opposite The point of a knife side of closing in, the cusp of point of a knife and the coupling part it is vertical to line be line of demarcation, two point of a knife sides Arranged respectively positioned at the both sides in the line of demarcation, specially the first point of a knife side, the second point of a knife side, wherein the first point of a knife side Include cutting point of a knife side, the first fillet, the second fillet, transition point of a knife side, the cutting point of a knife side, transition point of a knife side it is relative Gradient in line of demarcation is consistent with the profile side gradient that wheat to be formed is drawn, and the one of the close coupling part of the cutting point of a knife side End connects the initiating terminal of first fillet, the initiating terminal of smooth connection second fillet in end of first fillet, institute State one end of the remote coupling part of the smooth connection transition point of a knife side in end of the second fillet, the transition point of a knife side The other end connect the coupling part, the height of the cusp to the end of first fillet is equal to the thickness that wheat to be cut is drawn Degree, the shape of first fillet are identical with the rounding angular shape that wheat after shaping is drawn.
A kind of 2. new knife edge structure as claimed in claim 1, it is characterised in that：First fillet is specially towards even Socket part divides one section of circular arc of indent, and second fillet is specially one section of circular arc away from the coupling part evagination, and described the The initiating terminal smooth transition of the end of one fillet and second fillet, boundary line impression is not produced, second fillet is not done Relate to the end face shaping that wheat to be formed is drawn.
A kind of 3. new knife edge structure as claimed in claim 2, it is characterised in that：The second point of a knife side is overall Inclined-plane, the second point of a knife side are 20 ° relative to the angulation in line of demarcation, the cutting point of a knife side, transition point of a knife side it is relative Angulation in line of demarcation is 15 °.
A kind of 4. new knife edge structure as claimed in claim 3, it is characterised in that：The point of a knife is to the end of the first fillet Height be 0.5mm.
A kind of 5. new knife edge structure as claimed in claim 3, it is characterised in that：The radius of first fillet is 0.3mm。