CN100344398C

CN100344398C - Punching-bending die seide block cutting method and its structure

Info

Publication number: CN100344398C
Application number: CNB011300051A
Authority: CN
Inventors: 李启强
Original assignee: Mitac Computer Shunde Ltd
Current assignee: Mitac Computer Shunde Ltd; Shunda Computer Factory Co Ltd
Priority date: 2001-11-30
Filing date: 2001-11-30
Publication date: 2007-10-24
Anticipated expiration: 2021-11-30
Also published as: CN1422720A

Abstract

The present invention relates to a cutting method and a structure of a punching vending die slide block. The method uses a linear cutting machine to cut a stock block into a slide block body, a first slide block and a second slide block at twice along two zigzag track lines which are in a central symmetry relationship; convex rib structures uniformly distributed are arranged on two end cross sections formed by cutting of the slide block body; corresponding convex rib structures uniformly distributed are arranged on the corresponding cross sections formed by cutting on the first and the second slide blocks. While in use, the first and the second slide blocks are sheathed with the slide block body after interchanging positions; the convex ribs on the first and the second slide blocks are rightly attached to the convex ribs on the two end cross sections of the slide block body one by one so as to form slide fit.

Description

The cutting method of pressing and bending mode slider and structure thereof

Technical field:

The present invention relates to the cutting method and the structure thereof of pressing and bending mode slider.

Background technology:

Before; in the punch forming process of punching parts; the punch forming of punching parts; and the moving back mould and generally can realize easily of punch die by mode slider; but because many punching parts are when mode slider (being drift) sweeps away; part after can being stamped encases and can't realize moving back mould; as shown in Figure 1; one group of mode slider commonly used comprises a slide block body 10; one first slide block 11 and one second slide block 12; wherein first slide block 11 and second slide block 12 can slide along the inclined-plane, two ends of slide block body 10; when mode slider impacts punching parts 2 downwards; this punching parts 2 is by original horizontal and become the upwards shape of turnover of both sides by punching out; and mode slider (being drift) is wrapped in the inside of punching parts 2; simultaneously because many punching parts 2 all have folding as shown in Figure 1 to collude 21; thereby causing mode slider to be colluded 21 by folding easily when moving back mould blocks and can't move back mould; so; slide block body 10 on the mode slider commonly used now all is to make two ends to take the form of inclined plane; win slide block 11 and second slide block 12 can be slided along slide block body inclined-plane, 10 two ends; and first slide block 11 and second slide block 12 are to lower slider (shown in the direction of arrow among Fig. 1) with respect to slide block body 10 when sliding; so when moving back mould, the distance L between first slide block 11 and second slide block 12 ₀Can reduce gradually, until L ₀Collude distance L between 21 less than two foldings ₁, this moment, mode slider just can withdraw from punching parts 2 easily, thus the separating of realization drift and punching parts 2.

The structure of above-mentioned mode slider is widely used in the punch forming of various baroque punching parts just gradually, yet the processing of previous mode slider is cumbersome, and as Fig. 2 and shown in Figure 3, its processing method is as follows:

Step 1:, be L at an initial length with reference to Fig. 2 ₂The piece 1 of getting the raw materials ready on, carry out cutting twice with wire cutting machine along

trajectory

30 and 40 pairs of these pieces 1 of getting the raw materials ready that a predefined line cuts, these two

trajectories

30 and 40 are two smooth curves, and, the inclination angle of above-mentioned twice line cutting is consistent, all become an inclination alpha with trunnion axis, wherein

trajectory

30 and 40 shape are in full accord, and the position all bends to one trapezoidal 31 therebetween, thereby obtain as shown in Figure 3 one first slide block 11 and one scrap 20, wherein, cutting formed cross section 300 by this step on first slide block 11 is a smooth bevel, also form first clamping part 70 of an evagination in the middle part in this cross section 300, and the piece 1 of getting the raw materials ready is through also being formed with the angled section 400 of a correspondence after the cutting of this step, the middle part in this cross section 400 then forms second clamping part 80 of an indent via cutting simultaneously, because of trajectory 30 all is consistent with 40 shape with direction, so the

cross section

300 and 400 after the cutting is two smooth bevels that can fit like a glove.

Step 2: with reference to Fig. 2, the other end at the piece 1 of getting the raw materials ready cuts along two

smooth trajectories

50 and 60, wherein

trajectory

50 and 60 is on all four, trajectory 50 all is into the axial symmetry relation with 60 with

trajectory

30 or 40 simultaneously, and the method and the step 1 of cutting are just the same, repeat no more herein.With reference to Fig. 3, through after the cutting twice of this step 2, then obtain one second slide block 12 and and be positioned at slide block body 10 between the first, two

slide block

11 and 12, also have another scrap 20 simultaneously and produce.

With reference to Fig. 3, when using, because the cross section 300 of first slide block 11 fits like a glove with the cross section 400 of slide block body 10, and first clamping part 70 on the cross section 300 also just in time can be fastened togather with second clamping part 80 on the cross section 400, joins relation thereby form needed cunning between this first slide block 11 and slide block body 10.For second slide block 12, its with slide block body 10 between to form sliding principle of joining relation be the same with first slide block 11, repeat no more herein.

Yet; the traditional diamond-making technique and the structure thereof of above-mentioned mode slider have significant disadvantages; see also Fig. 2; at first; in order to guarantee first; two slide blocks 11; 12 and slide block body 10 form the sliding relation of joining after cooperating, must carry out four cuttings altogether to the piece 1 of getting the raw materials ready, so not only certain increase is arranged by the line cutting waste material that galvano-cautery produced; the more important thing is that consequent scrap 20 is very considerable; simultaneously because the expense of line cutting is calculating clipping time, therefore if cut four times, the time of cutting can be very long; efficient is on the low side, and expense also can be very high certainly.

Secondly, because the loss of piece 1 in the time of cutting of getting the raw materials ready is bigger, its initial length L ₂(see figure 2) is much longer than the design size of mode slider, and the heat treated in advance expense of the piece 1 of therefore getting the raw materials ready also can increase, and is the bigger plane of area owing to form sliding

cross section

300 and 400 of joining relation, so its quality of fit is difficult to guarantee.

Once more, owing to be that branch cuts for four times, the accumulated error that causes like this is also bigger, is difficult to control machining accuracy.

Summary of the invention:

Purpose one of of the present invention; in the cutting method that a kind of pressing and bending mode slider is provided; it ties up to two ends of getting the raw materials ready piece; see through wire cutting machine along two one-tenth centers to the zigzag trajectory that becomes relation to this piece cutting of getting the raw materials ready; thereby can cut out one first slide block and one second slide block at twice at the two ends of the piece of getting the raw materials ready; get the raw materials ready the remainder of piece then as a slide block body; this is first years old; two slide blocks and slide block body thereof have all formed saw-tooth shaped cross section in the cutting place; promptly; be formed with the fin of evagination and the groove structure of indent on those cross sections; so; when fastening with the slide block body when the position of first and second slide block is exchanged mutually; because two cutting track lines are into the center symmetric relation; therefore the fin on this first slide block and second slide block thereof just in time can be respectively with two end sections of this slide block body on fin fit one by one, thereby form the sliding relation of joining.

Another object of the present invention; in the structure that a kind of pressing and bending mode slider is provided; this structure comprises a slide block body; its both ends of the surface are the angled section of axial symmetry; be staggeredly equipped with the fin and the groove of indention on these two cross sections; this middle part, two cross sections also is respectively arranged with second buckling parts of an indent; in addition; this mode slider structure also includes one first slide block and one second slide block; also be provided with the fin and the groove of indention on one end face of these two slide blocks; and also be provided with first clamping part of evagination on this end face; this is first years old; fin on two slide blocks can be corresponding with these slide block body two ends angled section on groove just in time chimeric; and when the position of this first, two slide block of transposing fastens with two end sections of this slide block body again, then this first; fin on the fin of two slide blocks and this inclined-plane, slide block body two ends just in time can be fitted one by one, joins relation thereby form the needed cunning of pressing and bending mode slider.

Description of drawings:

The present invention will and be illustrated in conjunction with the accompanying drawings through a specific embodiment subsequently, wherein:

Fig. 1 is the fundamental diagram of pressing and bending mode slider;

Fig. 2 is the explanation schematic diagram of the cutting method of stamping die slide block commonly used at present;

Fig. 3 is the state diagram that first slide block is cut following time in the stamping die slide block cutting method of using always at present;

Fig. 4 is the schematic diagram of the cutting method of the embodiment of the invention;

Fig. 4 A is the partial enlarged drawing of embodiment of the invention center line cutting;

Fig. 5 A is the three-dimensional exploded view of piece after being cut of getting the raw materials ready in the embodiment of the invention;

Fig. 5 B be in the embodiment of the invention first slide block and second slide block not before the reversing of position with the assembled state figure of slide block body;

Fig. 6 be in the embodiment of the invention after first slide block and the second slide block reversing of position with the assembled state figure of slide block body.

The specific embodiment:

Please refer to Fig. 4, Fig. 5 A, Fig. 5 B and Fig. 6 thereof will be described in detail the specific embodiment of most preferred embodiment of the present invention.

The invention provides a kind of cutting method of pressing and bending mode slider; reach (as shown in Figure 2) as described in the background art; usually; the cutting method of the mode slider that is used in the punching parts; generally altogether will to one get the raw materials ready piece 1 carry out four times the cutting; the cutting method of pressing and bending mode slider used in the present invention then only needs cutting twice altogether, and with reference to Fig. 4, the concrete steps of this cutting method comprise:

Getting a length is the piece 1 of getting the raw materials ready of L, and wherein, L is the design size of mode slider, that is to say that the length of piece 1 of getting the raw materials ready this moment can determine according to design size L, and the loss when need not to consider to cut; Zigzag trajectory 91 on an end upper and lower surface of this piece 1 of getting the raw materials ready is carried out the line cutting first time, this trajectory 91 is one trapezoidal 41 in the middle part, and the cut direction in the time of cutting becomes an inclination alpha with the lower surface of the piece of getting the raw materials ready, like this, after cutting for the first time, just obtain one first slide block 11, consult Fig. 5 A, this first slide block 11 forms a jagged cross section 501 through this cutting, simultaneously, form the fin 23 of several equally distributed evaginations and the groove 22 of indent on this cross section 501, and these 501 middle parts, cross section form first clamping part 70 of an evagination via this cutting.

See also Fig. 4 A, it should be noted that, what the actual cutting of reaching the standard grade was used for cutting the time is a copper wire 90, this copper wire 90 has certain diameter, therefore when when cutting track line 91 cuts, will be by two end points P of a diameter of this copper wire 90 and Q and the piece 1 of will getting the raw materials ready is cut into two parts, and form two zigzag fashion cross sections 501 at cutting part.Again, because trajectory 91 is zigzag fashions, therefore when copper wire 90 time through each fin between these two cross sections 501 23, all can guarantee the surface accuracy of fin 23, and error has been transferred on the groove 22 between per two adjacent fins 23 among Fig. 5 A, that is to say, (promptly first slide block 11 and the piece 1 of getting the raw materials ready pass through the remainder of this time cutting through two parts that cutting this time can guarantee to be cut to simultaneously, with reference to Fig. 5 A) the surface accuracy in cross section 501, and smooth curve type cutting track line 30 (see figure 2)s commonly used are to guarantee this point, and this also is the cutting method used always an essential reason through cutting twice when cutting out first slide block 11.

With reference to Fig. 4, according to the described same quadrat method of above-mentioned steps, on the other end upper and lower surface of this piece 1 of getting the raw materials ready, utilize wire cutting machine, one and trajectory 91 complete centrosymmetric zigzag trajectories 92 on the upper and lower surface of the piece 1 of getting the raw materials ready cut out one second slide block 12, between this first slide block 11 and second slide block 12, then be a slide block body 10, and, see also Fig. 5 A, form two saw-tooth shaped cross section 601 via this cutting between the slide block body 10 and second slide block 12, simultaneously, all be formed with a series of equally distributed fins 23 and groove 22 on these two cross sections 601, and, first clamping part 70 of an evagination formed on second slide block 12 in its 601 middle parts, cross section via this cutting, correspondingly, form second clamping part 80 of an indent on the slide block body 10 in its 601 middle parts, cross section via this cutting.

With reference to Fig. 5 A and Fig. 5 B, finish after the above-mentioned cutting second time, the shape in the cross section 601 on the slide block body 10 and the cross section 501 of first slide block 11 can fit like a glove, the shape in the cross section 601 on this second slide block 12 then also can be coincide fully with another cross section 501 of slide block body 10, so when using, with first slide block 11 and second slide block, 12 reversing of position, and respectively with slide block body 10 fits, with reference to Fig. 6, this moment first slide block 11 cross section 501 on a series of fins 23 just in time with the cross section 601 of slide block body 10 on a series of fins 23 fit one by one, simultaneously by first clamping part 70 on first slide block 11 with the cross section 601 of slide block body 10 on second clamping part 80 withhold, thereby the slide block 11 of winning closely is linked in slide block body 10 and forms cunning and join relation, in like manner, second slide block 12 is also slidingly joined relation by forming with slide block body 10 with the same mode of first slide block 11, repeats no more herein.

This shows, the cutting method of mode slider set forth in the present invention can guarantee to form sliding surface size precision of joining the fin 23 of relation effectively, and only need carry out cutting twice, method with respect to four cuttings of branch commonly used in the background technology, cutting method of the present invention is obviously in clipping time, the cutting expense, and the saving of highly significant is all arranged on the consumption of getting the raw materials ready; Simultaneously,, only need cutting twice, so the excessive shortcoming of accumulated error can avoid repeatedly cutting the time but show no sign of influence forming on the sliding precision of joining simultaneously, and precision is easier to control because of adopting the zigzag fashion cutting track.

With reference to accompanying drawing 5A, Fig. 5 B and Fig. 6, the present invention also provides a kind of structure that sees through the pressing and bending mode slider that above-mentioned cutting method makes, and it is a kind of one group of mode slider structure that is applied on the punching parts, and with reference to Fig. 5 A, this structure includes:

One slide block body 10, the both ends of the surface of this slide block body 10 are two cross sections 501 and the cross section 601 with identical inclination alpha, the centre position in these two cross sections 501,601 is provided with second clamping part 80 that is invaginated type of symmetry, and, be equipped with a series of sizes, shape and all identical at interval fin 23 on these two cross sections 501,601, be provided with groove 22 between per two fins 23, the more important thing is, fin 23 on the cross section 501 is staggered arrangement with the fin 23 on the cross section 601, that is, the shape in these two cross sections 501,601 is can be intermeshing.

One first slide block 11, these first slide block, 11 1 ends be provided with one can with the cross section 501 of cross section 601 engagement of slide block body 10, promptly, this cross section 501 also is provided with a series of sizes, shape and at interval all with cross section 601 on fin 23 fin 23 fully one to one, in addition, the middle part of this first slide block 11 is provided with first clamping part 70 of evagination, this first clamping part 40 is just in time corresponding to two second clamping parts 50 at these slide block body 10 two ends, snap effect by this first clamping part 40 and second clamping part 50, this first slide block 11 both can at one end be fastened togather with slide block body 10 versatilely in 501 in the cross section of slide block body 10, can at one end being fastened togather versatilely with slide block body 10 in 601 in the cross section of slide block body 10.

One second slide block 12, these second slide block, 12 1 ends be provided with one can with the cross section 601 of cross section 601 engagement of slide block body 10, promptly, also be provided with on this cross section 601 of second slide block 12 a series of sizes, shape and at interval all with cross section 501 on fin 23 fin 23 fully one to one, in addition, the middle part of this second slide block 12 also is provided with first clamping part 70 of evagination, like this, machine-processed the same with first slide block 11 and slide block body 10 buckles, this second slide block 12 also can be snapped in respectively on the end at cross section 501 on the

slide block body

10 or 601 places.

Please refer to Fig. 5 B and Fig. 6, Fig. 5 B has provided the assembled state of the mode slider before first slide block 11 and the transposing of second slide block 12, and Fig. 6 has then provided after

first slide block

11 and 12 transposings of second slide block assembled state with slide block body 10.When using this mode slider; first slide block 11 among Fig. 5 B and the position of second slide block 12 are exchanged; and then respectively with slide block body 10 buckles; promptly; second clamping part, 80 mutual buckles on first clamping part 70 on first slide block 11 and the cross section 601 of slide block body 10; first clamping part 40 on second slide block 12 then with the cross section 501 of slide block body 10 on second clamping part, 80 mutual buckles; as shown in Figure 6; after the reversing of position; since the fin 23 on the cross section 501 of first slide block 11 just in time with the cross section 601 of slide block body 10 on fin 23 be one to one; fin 23 on the cross section 501 of such first slide block 11 can be fitted one by one with the fin 23 on the cross section 601 of slide block body 10; simultaneously; by first clamping part 70 on first slide block 11 with the cross section 601 of slide block body 10 on second clamping part 80 withhold, thereby the slide block 11 of winning closely be linked in slide block body 10 and form the sliding relation of joining.In like manner, the situation and first slide block 11 with slide block body 10 buckles after 12 transposings of second slide block are the same, promptly also can form sliding joining between second slide block 12 and block body 10.

In sum; use the cutting method and the structure of the pressing and bending mode slider that the present invention narrated; when the piece of getting the raw materials ready is processed; only need not carry out cutting twice; and not having waste material produces; so no matter in stock utilization; processing cost; aspects such as element precision have obtained very big raising; in present embodiment, show by test of many times gained data, use the cutting method and the structure of pressing and bending mode slider of the present invention; stock utilization can improve 20%; the line expense of cutting can reduce by 40%, and CNC processing charges and heat treatment expense can reduce by 10%, and the grinding expense can reduce by 5%; process-cycle contracts and also obviously shortens, and element precision can effectively guarantee.

So far, most preferred embodiment of the present invention is illustrated, and various variations or the remodeling done by the one of ordinary skilled in the art can not depart from the scope of the present invention.

Claims

1, a kind of structure of pressing and bending mode slider, this structure comprises:

One slide block body, wherein the middle part of two end faces of this slide block body is respectively arranged with second clamping part of indent, and two end faces of this slide block body are two saw-tooth shaped cross section, and these two cross sections are provided with a series of fins;

One first slide block, the middle part of one end is provided with first clamping part of an evagination, this first clamping part just in time can be snapped in arbitrary second clamping part of described slide block body, thereby win slide block and this physical efficiency of slide block are fastened togather, and the end face of this first slide block is respectively equipped with the cross section of indentation, this cross section is provided with a series of fins, and a series of fins at least one cross section at the two ends of those fins and slide block body are one to one;

One second slide block, the middle part of one end is provided with first clamping part that an evagination is also arranged, this first clamping part can be snapped in arbitrary second clamping part of described slide block body, thereby make second slide block to be fastened togather with this physical efficiency of slide block, and the end face of this second slide block is respectively equipped with the cross section of indentation, this cross section is provided with a series of fins, and a series of fins at least one cross section at the two ends of those fins and slide block body are one to one;

And the size of the fin on slide block body, first slide block and second slide block, shape are with all identical at interval, make first and second slide block and described slide block body respectively during buckle, a series of fins on these first and second slide blocks can be respectively with described slide block body on corresponding a series of fins fit one by one and form cunning and join.

2, a kind of cutting method of making the structure of the described pressing and bending mode slider of claim 1, its method comprises following steps at least:

In a upper and lower surface of getting the raw materials ready piece one end, carry out the cutting first time with wire cutting machine along a middle zigzag trajectory that is trapezoidal profile, thereby cut out one first slide block, and the direction of line cutting becomes an inclination angle with the lower surface of the piece of getting the raw materials ready during cutting, its cut surface of first slide block that obtains after cutting forms a saw-tooth shaped cross section that tilts, and has a series of sizes, shape and all identical at interval fin that form via cutting on this cross section;

Upper and lower surface at the above-mentioned piece other end of getting the raw materials ready, become centrosymmetric another zigzag trajectory to carry out the cutting second time with wire cutting machine along trajectory with the line cutting first time, and the inclination angle size of line cutting during this cutting is identical when cutting with the first time, but direction is then opposite, thereby cut out one second slide block, this second slide block then forms a saw-tooth shaped cross section that tilts at its cutting part, form a series of sizes via cutting for the second time on this cross section, shape and all identical at interval fin, between above-mentioned first slide block and second slide block, obtain simultaneously a slide block body, the two ends cutting part of described slide block body is then via above first, secondary cut and two saw-tooth shaped cross section that form, described two saw-tooth shaped cross section also become the center symmetric relation, simultaneously on described two cross sections via above-mentioned the first, secondary cut and a series of sizes that form, shape and all identical at interval fin.

3, the cutting method of pressing and bending mode slider as claimed in claim 2; it is after the trapezoidal profile of the trajectory middle part of cutting cuts for the first time; can on the described saw-tooth shaped cross section of this first slide block, cut out first clamping part of an evagination, then cut out second clamping part of an indent simultaneously at the corresponding position of described slide block body.

4, the cutting method of pressing and bending mode slider as claimed in claim 2; it is after the trapezoidal profile of the trajectory middle part of cutting cuts for the second time; can on the described saw-tooth shaped cross section of this second slide block, cut out first clamping part of an evagination, then cut out second clamping part of an indent simultaneously at the corresponding position of described slide block body.