CN104084508A - Spring machine and method for forming German-style extension spring with pitches - Google Patents

Spring machine and method for forming German-style extension spring with pitches Download PDF

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Publication number
CN104084508A
CN104084508A CN201410300928.1A CN201410300928A CN104084508A CN 104084508 A CN104084508 A CN 104084508A CN 201410300928 A CN201410300928 A CN 201410300928A CN 104084508 A CN104084508 A CN 104084508A
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China
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tool rest
ear
slip tool
hooks
spiral
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CN201410300928.1A
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CN104084508B (en
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黄屹立
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Fuliwang precision electromechanical (Chinese) Limited by Share Ltd
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FREEWON (CHINA) Co Ltd
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Abstract

The invention discloses a spring machine for forming a German-style extension spring with pitches. The end of a lower right sliding knife holder is provided with a first hook angle bending groove, the end of an upper left sliding knife holder is provided with a hook angle bending inclined block which is provided with a hook angle bending apex angle and a spiral inclined edge with pitches, the hook angle bending apex angle is aligned to the first hook angle bending groove and is matched with the first hook angle bending groove, the end of a lower sliding knife holder is provided with a spiral body positioning mold, the position that the upper end face and the front side end face of the end of the spiral body positioning mold are connected is provided with a spiral clamping groove with pitches, the axial direction of the spiral clamping groove with the pitches is parallel to that of the spiral inclined edge with the pitches, and the spiral clamping groove with the pitches and the spiral inclined edge with the pitches are respectively matched with the outer wall of the German-style extension spring with the pitches. The invention further provides a method for forming the German-style extension spring with the pitches by utilizing the spring machine. The spring machine has the advantages of being capable of completing forming and shaping at a time, high in forming speed and efficiency, long in service life and stable.

Description

Coiling machine and the method for forming strip pitch moral formula extension spring
Technical field
The present invention relates to a kind of coiling machine and method of forming strip pitch moral formula extension spring.
Background technology
Belt pitch moral formula extension spring has two semicircle shape ears and hooks, a spiral body, traditional C NC coiling machine production equipment has eight slip tool rests, respectively by the positive left side of horizontal direction, just right slip tool rest, longitudinal just goes up, positive lower slider tool rest, the upper left of left tilted direction, bottom right slip tool rest, the upper right of right tilted direction, lower-left slip tool rest composition, these eight slip tool rests are as follows to the operating process of belt pitch moral formula extension spring, first, supplied materials is from the center of feeding to an eight slip tool rest in the feed spool pit of the stomach, realize successively by eight slip tool rests: 1, first first semicircle shape ear of moulding hooks, 2, the bending at first hook angle of forming strip pitch moral formula extension spring, 3, the Spiral Notebook body diameter of moulding 1/4, 4, second semicircle shape ear of moulding extension spring hooks, 5, carry out second bending and molding that hooks angle, 6, finally cut off raw material, by above-mentioned steps, can obtain a belt pitch moral formula extension spring, the next belt pitch moral of recirculation moulding formula extension spring.
Because the spiral body of belt pitch moral formula extension spring is long, in forming process, be difficult to the shape of control spiral body, spiral body is easily deformable, in addition, hook angle circular arc after bending is at present produced comparatively unstable, can produce other unnecessary stress, have that shaping speed is slow, efficiency is low, service life is short, unsettled shortcoming; In addition in order to eliminate unnecessary stress, the belt pitch moral formula extension spring that part producer need form out to coiling machine carries out shaping, has increased flow process, has then reduced production efficiency.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind ofly moulding and shaping disposablely can be completed, belt pitch moral formula extension spring shaping speed is fast, efficiency is high, coiling machine and the method for long service life, comparatively stable forming strip pitch moral formula extension spring.
For achieving the above object, technical scheme of the present invention is as follows: a kind of coiling machine of forming strip pitch moral formula extension spring, the first ear in order to one-shot forming belt pitch moral formula extension spring hooks, first hooks angle, spiral body, the second ear hooks, second hooks angle, described coiling machine comprises the feed spool pit of the stomach and the just left slip tool rest that can move to the feed spool pit of the stomach, just right slip tool rest, just going up slip tool rest, positive lower slider tool rest, upper left slip tool rest, bottom right slip tool rest, upper right slip tool rest, lower-left slip tool rest, the end of described just right slip tool rest is provided with raw material clamping draw-in groove, described end of just going up slip tool rest is provided with ear and hooks body formed of Spiral Notebook, the end of described bottom right slip tool rest is provided with the first hook angle bending groove, the end of described upper left slip tool rest is provided with and hooks angle bending skewback, and described hook angle bending skewback has the angle bending drift angle of hook and belt pitch helical form hypotenuse, and described hook angle bending drift angle is aimed at first and hooked angle bending groove and mate with the first hook angle bending groove, the end of described positive lower slider tool rest is provided with spiral body jig, upper surface and the anterior end surface joint of described spiral body jig end are provided with belt pitch helical form draw-in groove, described belt pitch helical form draw-in groove axially parallel with belt pitch helical form hypotenuse, described belt pitch helical form draw-in groove and belt pitch helical form hypotenuse mate with the outer wall of belt pitch moral formula extension spring respectively, the end of described upper right slip tool rest is provided with ear and hooks holding tank, the end of described lower-left slip tool rest is provided with cutting knife, the end of described just left slip tool rest is provided with the second ear and hooks folded block, described the second ear hooks the lower surface of folded block and is provided with the second ear that is fox shape and hooks bending groove, is provided with to drive near second ear at the feed spool pit of the stomach to hook the drive division that one end of folded block moves downward on described just left slip tool rest, described first hooks angle bending groove, hook angle bending skewback, described spiral body jig in the first plane, the plane at described raw material clamping draw-in groove place is lower than the first plane, described ear hooks the plane at body formed of Spiral Notebook and ear hook holding tank place higher than the first plane, the plane at described cutting knife place hooks the plane at holding tank place higher than ear, described the second ear hooks the plane at folded block place higher than the plane at ear hook holding tank place.
Preferably, be provided with projection near belt pitch helical form draw-in groove one end of described lower-left slip tool rest, between described projection and the inwall of belt pitch helical form draw-in groove, leave predetermined gap, described the first ear hooks with the junction of spiral body and can be fastened in gap.
Preferably, also comprise the first probe, described the first probe is arranged on the front side at the feed spool pit of the stomach, described the first probe can near and away from the direction motion at the feed spool pit of the stomach.
Preferably, also comprise the second probe, described the second probe is arranged on the front side at the feed spool pit of the stomach, described the second probe can near and away from the direction motion at the feed spool pit of the stomach.
Preferably, also comprise manipulator, described manipulator is arranged on the front side at the feed spool pit of the stomach, and the rear side of described manipulator is provided with two grippers.
Preferably, the anterior end surface of described spiral body jig is provided with forming blocks slot to make way, and described forming blocks slot to make way and ear hook the form fit of body formed rear side of Spiral Notebook.
Preferably, the anterior end surface of described belt pitch helical form draw-in groove is provided with cutting knife slot to make way, the form fit of described cutting knife slot to make way and cutting knife rear side.
A method for forming strip pitch moral formula extension spring, described forming method uses the coiling machine of above-mentioned forming strip pitch moral formula extension spring, comprises the steps step 1: raw material is constantly sent from the feed spool pit of the stomach, step 2, described just right slip tool rest, just goes up slip tool rest all to feed spool pit of the stomach motion, and the raw material clamping draw-in groove of described just right slip tool rest in the future material blocks, and the ear of just go up slip tool rest hooks body formed formation of lots the first ear hook of Spiral Notebook, step 3, just right slip tool rest, just go up slip tool rest and retreat reset, described upper left slip tool rest, bottom right slip tool rest move to the feed spool pit of the stomach, first of the hook angle bending drift angle of the hook angle bending skewback of described upper left slip tool rest and bottom right slip tool rest hooks angle bending groove and moves to respectively the both sides that the first ear hooks, hook angle bending skewback the first ear is hooked to top to the first hook angle bending groove, realize bending, moulding first hooks angle, step 4, upper left slip tool rest, bottom right slip tool rest are return reset, described just right slip tool rest, just go up slip tool rest all to feed spool pit of the stomach motion, the raw material clamping draw-in groove of described just right slip tool rest in the future material blocks, and just go up the body formed formation of lots spiral of the ear hook Spiral Notebook body of slip tool rest, step 5, the raw material clamping draw-in groove of described just right slip tool rest continues supplied materials to block, the ear of just going up slip tool rest hooks body formed formation of lots the second ear of Spiral Notebook and hooks, and the second ear after moulding hooks respectively and hooks with the first ear, spiral body is vertical, obtains semi-finished product belt pitch moral formula extension spring, step 6, just right slip tool rest, just go up slip tool rest and all returning reset, described positive lower slider tool rest, slip tool rest in upper left moves to semi-finished product belt pitch moral formula extension spring, the belt pitch helical form hypotenuse of the positive belt pitch helical form draw-in groove of lower slider tool rest and the hook angle bending skewback of upper left slip tool rest is located semi-finished product belt pitch moral formula extension spring, the first ear hooks with the junction of spiral body and is fastened in the gap of spiral body jig, the hook angle bending drift angle that hooks angle bending skewback carries out bending second to the second ear hook and hooks angle, the tool rest of upper right slip simultaneously, slip tool rest in lower-left all hooks motion to the second ear hooking with the first ear and spiral body is vertical, the ear of upper right slip tool rest hooks holding tank the supplied materials end of the second ear hook is clamped, the supplied materials end-grain cutting that the cutting knife of lower-left slip tool rest hooks the second ear is disconnected, step 7, upper right slip tool rest, lower-left slip tool rest are return reset, described semi-finished product belt pitch moral formula extension spring continues to be located by belt pitch helical form draw-in groove and belt pitch helical form hypotenuse, described just left slip tool rest hooks motion to the second ear hooking with the first ear and spiral body is vertical, and by drive division, one end of the second ear hook folded block that is positioned at front side, the feed spool pit of the stomach is moved down, by the second ear hook bending be respectively with the first ear hook, spiral body is parallel, obtains finished product belt pitch moral formula extension spring, step 8, just left slip tool rest, upper left slip tool rest are return reset, and manipulator takes out finished product belt pitch moral formula extension spring.
Preferably, in step 4, in the time that described ear hooks the spiral body of the body formed formation of lots 1/2 of Spiral Notebook, the first probe hooks motion to the first ear.
Preferably, hook before the complete moulding of motion rear screw body to the first ear at the first probe, the second probe hooks motion to the first ear.
Adopt the beneficial effect of the technical program to be:
In the coiling machine of forming strip pitch moral formula extension spring, the spiral body of spiral status and belt pitch helical form draw-in groove coincide, by the belt pitch helical form draw-in groove of spiral body jig and the belt pitch helical form hypotenuse positioning product of hook angle bending skewback, hook angle bending drift angle and the first hook angle bending groove and realize the hook angle bending of the first ear hook, pass through cutting knife, ear hooks holding tank, supplied materials end and the hook angle bending drift angle that the second ear hooks cut off in the cooperation that hooks angle bending drift angle and belt pitch helical form draw-in groove, again the second ear is hooked and carries out the second hook angle bending and molding, make the turn of spiral body in process indeformable, it is stable that after bending first hooks the circular arc at angle and the second hook angle, do not produce other unnecessary stress, enhance productivity, ensure the service life of belt pitch moral formula extension spring,
In the method for forming strip pitch moral formula extension spring, in step 6, increase the belt pitch helical form hypotenuse of the belt pitch helical form draw-in groove of positive lower slider tool rest and the hook angle bending skewback of upper left slip tool rest, in order to semi-finished product belt pitch moral formula extension spring is located, optimize production technology, in technique, increase shaping positioning process, make the turn of spiral body in process indeformable, first hooks angle You Gou angle bending drift angle and first hooks the moulding of angle bending groove, under the prerequisite being positioned at semi-finished product belt pitch moral formula extension spring, second hooks the moulding of angle You Gou angle bending drift angle, produce two circular arcs that hook angle stable, do not produce other unnecessary stress, enhance productivity, ensure the service life of belt pitch moral formula extension spring.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, to the accompanying drawing of required use in embodiment technical description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the present embodiment;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is the partial enlarged drawing at B place in Fig. 2;
Fig. 4 is the structural representation of the spiral body jig in the present embodiment;
Fig. 5 is the structural representation that the second ear in the present embodiment hooks folded block;
Fig. 6 is the structural representation that the ear in the present embodiment hooks body formed of Spiral Notebook;
Fig. 7 is the structural representation of belt pitch moral formula extension spring product;
Fig. 8 is the structural representation that in the present embodiment, in step 2, moulding the first ear hooks;
Fig. 9 is the structural representation that hooks angle in the present embodiment in step 3 by moulding first;
Figure 10 is the structural representation of moulding spiral body in step 4 in the present embodiment;
Figure 11 be in the present embodiment in step 5 forming second ear hook after structural representation;
Figure 12 is that the supplied materials end-grain cutting that in step 6, the second ear hooked in the present embodiment is disconnected and the second ear is hooked moulding second and hooked the structural representation at angle;
Figure 13 be in the present embodiment, in step 7, the second ear is hooked bending be respectively with the first ear hook, the structural representation of spiral body when parallel;
Figure 14 be in the present embodiment in step 7 the formed product of belt pitch moral formula extension spring good after, and manipulator does not take out the structural representation of product.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Consult shown in Fig. 1 to Fig. 7, the coiling machine of a kind of forming strip pitch moral formula extension spring of the present embodiment, the first ear in order to one-shot forming belt pitch moral formula extension spring 110 hooks 111, first hooks angle 112, spiral body 113, the second ear hooks 115, second hooks angle 114, this coiling machine comprises the feed spool pit of the stomach 900 and the just left slip tool rest 700 that can move to the feed spool pit of the stomach 900, just right slip tool rest 300, just going up slip tool rest 100, positive lower slider tool rest 500, upper left slip tool rest 800, bottom right slip tool rest 400, upper right slip tool rest 200, lower-left slip tool rest 600, the end of just right slip tool rest 300 is provided with raw material clamping draw-in groove 301, the end of just going up slip tool rest 100 is provided with ear and hooks body formed 101 of Spiral Notebook, ear hooks the end of body formed 101 of Spiral Notebook and rear side and is circular-arc 102, ear hook body formed 101 of Spiral Notebook in order to moulding the first ear hook 111, spiral body 113, the second ear hook 115, the end of bottom right slip tool rest 400 is provided with the first hook angle bending groove 401, the end of upper left slip tool rest 800 is provided with and hooks angle bending skewback 801, hook angle bending skewback 801 and there is the angle bending drift angle 802 of hook and belt pitch helical form hypotenuse 803, hooking angle bending drift angle 802 aims at the first hook angle bending groove 401 and mates with the first hook angle bending groove 401, angle bending drift angle 802 and the first coordinating in order to moulding first of hook angle bending groove 401 hook angle 112 by hooking, hook angle bending drift angle 802 and hook angle 114 in order to moulding second, the end of positive lower slider tool rest 500 is provided with spiral body jig 501, upper surface and the anterior end surface joint of spiral body jig 501 ends are provided with belt pitch helical form draw-in groove 502, belt pitch helical form draw-in groove 502 axially parallel with belt pitch helical form hypotenuse 803, belt pitch helical form draw-in groove 502 and belt pitch helical form hypotenuse 803 mate with the outer wall of belt pitch moral formula extension spring 110 respectively, coordinate clamping band pitch moral formula extension spring 110 by belt pitch helical form draw-in groove 502 and belt pitch helical form hypotenuse 803, locate in order to will hold belt pitch moral formula extension spring 110, the end of upper right slip tool rest 200 is provided with ear and hooks holding tank 201, the end of lower-left slip tool rest 600 is provided with cutting knife 601, by ear hook holding tank 201 and cutting knife 601 coordinate cut off the second ear and hook 115 supplied materials end, the end of just left slip tool rest 700 is provided with the second ear and hooks folded block 701, the lower surface that the second ear hooks folded block 701 is provided with the second ear hook bending groove 702 that is fox shape, on just left slip tool rest 700, be provided with to drive near second ear at the feed spool pit of the stomach 900 and hook the drive division that one end of folded block 701 moves downward, the second ear hooks folded block 701 in order to the second ear is hooked to 115 bendings, hooks folded block by the second ear, first hooks angle bending groove 401, hook angle bending skewback 801, spiral body jig 501 in the first plane, the plane at raw material clamping draw-in groove 301 places is lower than the first plane, ear hooks the plane at body formed 101 of Spiral Notebook and ear hook holding tank 201 places higher than the first plane, the plane at cutting knife 601 places hooks the plane at holding tank 201 places higher than ear, the second ear hooks the plane at folded block 701 places higher than the plane at ear hook holding tank 201 places.
Can locate belt pitch moral formula extension spring 110 completely in order to ensure belt pitch helical form draw-in groove 502, belt pitch helical form draw-in groove 502 one end of close lower-left slip tool rest 600 in the present embodiment are provided with projection 503, between the inwall of projection 503 and belt pitch helical form draw-in groove 502, leave predetermined gap, the first ear hooks 111 and can be fastened in gap with the junction of spiral body 113.Belt pitch helical form draw-in groove 502 blocks spiral body 113 and the first ear hooks 111, then ensures that belt pitch moral formula extension spring 110 can not rotate, and forming process is comparatively stable.
This coiling machine also comprises the first probe, and the first probe is arranged on the front side at the feed spool pit of the stomach 900, the first probe can near and away from the direction motion at the feed spool pit of the stomach 900.Spring curls up in process, and after the first probe contacts with spiral body 113, spiral body 113 can stop curling up, thereby has ensured the free angle curling up.
This coiling machine also comprises the second probe, and the second probe is arranged on the front side at the feed spool pit of the stomach 900, the second probe can near and away from the direction motion at the feed spool pit of the stomach 900.Probe is further controlled the free angle that final spiral body 113 curls up for the second time, and the number of turns that guarantee spiral body 113 curls up is in the specification requiring.
This coiling machine also comprises manipulator, and manipulator is arranged on the front side at the feed spool pit of the stomach 900, and the rear side of manipulator is provided with two grippers.Two grippers are corresponding one by one with two ears hooks, and mutually mate.When after 110 formings of belt pitch moral formula extension spring, by two grippers of manipulator, product is taken out.
In order to ensure the compact conformation of coiling machine, then reduce floor space, the upper surface of raw material clamping draw-in groove 301 is provided with forming blocks slot to make way 302, and forming blocks slot to make way 302 and ear hook the form fit of body formed 101 rear sides of Spiral Notebook.
Equally, in order to ensure the compact conformation of coiling machine, then reduce floor space, the upper surface of spiral body jig 501 is provided with cutting knife slot to make way 504, the form fit of cutting knife slot to make way 504 and cutting knife 601 rear sides.
The spiral body 113 of spiral status coincide with belt pitch helical form draw-in groove 502, by the belt pitch helical form draw-in groove 502 of spiral body jig 501 and belt pitch helical form hypotenuse 803 positioning products of hook angle bending skewback 801, hook angle bending drift angle 802 and the first hook angle bending groove 401 and realize the first hook angle 112 bendings of the first ear hook 111, by cutting knife 601, ear hooks holding tank 201, the cooperation that hooks angle bending drift angle 802 and belt pitch helical form draw-in groove 502 is cut off the supplied materials end of the second ear hook 115 and hooks angle bending drift angle 802, again the second ear is hooked to 115 and carry out the second hook angle 114 bending and moldings, make the turn of spiral body 113 in process indeformable, it is stable that after bending first hooks the circular arc at angle 112 and the second hook angle 114, do not produce other unnecessary stress, enhance productivity, ensure the service life of belt pitch moral formula extension spring 110.
A method for forming strip pitch moral formula extension spring, forming method uses the coiling machine of above-mentioned forming strip pitch moral formula extension spring, comprises the steps step 1: raw material is constantly sent from the feed spool pit of the stomach 900, step 2, as shown in Figure 8, just right slip tool rest 300, just go up slip tool rest 100 and all move to the feed spool pit of the stomach 900, the raw material clamping draw-in groove 301 of just right slip tool rest 300 blocks supplied materials, and the ear of just go up slip tool rest 100 hooks body formed 101 moulding the first ears hooks 111 of Spiral Notebook, step 3, as shown in Figure 9, just right slip tool rest 300, just go up slip tool rest 100 and retreat reset, upper left slip tool rest 800, bottom right slip tool rest 400 move to the feed spool pit of the stomach 900, the hook angle bending drift angle 802 of the hook angle bending skewback 801 of upper left slip tool rest 800 moves to respectively the first ear with the first hook angle bending groove 401 of bottom right slip tool rest 400 and hooks 111 both sides, hook angle bending skewback 801 the first ear is hooked to 111 tops to the first hook angle bending groove 401, realize bending, moulding first hooks angle 112, step 4, as shown in figure 10, upper left slip tool rest 800, bottom right slip tool rest 400 are return reset, just right slip tool rest 300, just go up slip tool rest 100 and all move to the feed spool pit of the stomach 900, the raw material clamping draw-in groove 301 of just right slip tool rest 300 blocks supplied materials, and the ear of just going up slip tool rest 100 hooks body formed 101 moulding spiral bodies 113 of Spiral Notebook, step 5, as shown in figure 11, the raw material clamping draw-in groove 301 of just right slip tool rest 300 continues supplied materials to block, the ear of just going up slip tool rest 100 hooks body formed 101 moulding the second ears of Spiral Notebook and hooks 115, the second ear after moulding hooks and 115 hooks 111 with the first ear respectively, spiral body 113 is vertical, obtains semi-finished product belt pitch moral formula extension spring 110, step 6, as shown in figure 12, just right slip tool rest 300, just go up slip tool rest 100 and all returning reset, positive lower slider tool rest 500, upper left slip tool rest 800 moves to semi-finished product belt pitch moral formula extension spring 110, the belt pitch helical form hypotenuse 803 of the positive belt pitch helical form draw-in groove 502 of lower slider tool rest 500 and the hook angle bending skewback 801 of upper left slip tool rest 800 is located semi-finished product belt pitch moral formula extension spring 110, the first ear hooks 111 and is fastened in the gap of spiral body jig 501 with the junction of spiral body 113, the hook angle bending drift angle 802 that hooks angle bending skewback 801 carries out bending second to the second ear hook 115 and hooks angle 114, the tool rest of upper right slip simultaneously 200, lower-left slip tool rest 600 all hooks 115 motions to the second ear vertical with the first ear hook 111 and spiral body 113, the ear of upper right slip tool rest 200 hooks holding tank 201 the supplied materials end of the second ear hook 115 is clamped, the cutting knife 601 of lower-left slip tool rest 600 is by disconnected the supplied materials end-grain cutting of the second ear hook 115, step 7, as shown in figure 13, upper right slip tool rest 200, lower-left slip tool rest 600 is return reset, semi-finished product belt pitch moral formula extension spring 110 continues to be located by belt pitch helical form draw-in groove 502 and belt pitch helical form hypotenuse 803, just left slip tool rest 700 hooks 115 motions to the second ear vertical with the first ear hook 111 and spiral body 113, and by drive division, one end of the second ear hook folded block 701 that is positioned at the feed spool pit of the stomach 900 is moved down, the second ear is hooked to 115 bendings to be respectively with the first ear and to hook 111, spiral body 113 is parallel, obtain finished product belt pitch moral formula extension spring 110, step 8, as shown in figure 14, just left slip tool rest 700, upper left slip tool rest 800 are return reset, and manipulator takes out finished product belt pitch moral formula extension spring 110.
In step 6, increase the belt pitch helical form hypotenuse 803 of the belt pitch helical form draw-in groove 502 of positive lower slider tool rest 500 and the hook angle bending skewback 801 of upper left slip tool rest 800, in order to semi-finished product belt pitch moral formula extension spring 110 is located, optimize production technology, in technique, increase shaping positioning process, make the turn of spiral body 113 in process indeformable, first hooks angle 112You Gou angle bending drift angle 802 and first hooks 401 moulding of angle bending groove, under the prerequisite being positioned at semi-finished product belt pitch moral formula extension spring 110, second hooks 802 moulding of angle 114You Gou angle bending drift angle, produce two circular arcs that hook angle stable, do not produce other unnecessary stress, enhance productivity, ensure the service life of belt pitch moral formula extension spring 110.
In step 4, in the time that ear hooks the spiral body 113 of body formed 101 moulding 1/2 of Spiral Notebook, the first probe hooks 111 motions to the first ear.Spring curls up in process, and after the first probe contacts with spiral body 113, spiral body 113 can stop curling up, thereby has ensured the free angle curling up.
Hook to the first ear at the first probe before the complete moulding of 111 motion rear screw body 113, the second probe hooks 111 motions to the first ear.Probe is further controlled the free angle that final spiral body 113 curls up for the second time, and the number of turns that guarantee spiral body 113 curls up is in the specification requiring.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. the coiling machine of a forming strip pitch moral formula extension spring, hook angle, spiral body, the second ear hook, the second hook angle in order to the first ear hook, first of one-shot forming belt pitch moral formula extension spring, described coiling machine comprises the feed spool pit of the stomach and the just left slip tool rest that can move to the feed spool pit of the stomach, just right slip tool rest, just goes up slip tool rest, positive lower slider tool rest, upper left slip tool rest, bottom right slip tool rest, upper right slip tool rest, lower-left slip tool rest, and the end of described just right slip tool rest is provided with raw material clamping draw-in groove; Described end of just going up slip tool rest is provided with ear and hooks body formed of Spiral Notebook; It is characterized in that:
The end of described bottom right slip tool rest is provided with the first hook angle bending groove;
The end of described upper left slip tool rest is provided with and hooks angle bending skewback, and described hook angle bending skewback has the angle bending drift angle of hook and belt pitch helical form hypotenuse, and described hook angle bending drift angle is aimed at first and hooked angle bending groove and mate with the first hook angle bending groove;
The end of described positive lower slider tool rest is provided with spiral body jig, upper surface and the anterior end surface joint of described spiral body jig end are provided with belt pitch helical form draw-in groove, described belt pitch helical form draw-in groove axially parallel with belt pitch helical form hypotenuse, described belt pitch helical form draw-in groove and belt pitch helical form hypotenuse mate with the outer wall of belt pitch moral formula extension spring respectively;
The end of described upper right slip tool rest is provided with ear and hooks holding tank;
The end of described lower-left slip tool rest is provided with cutting knife;
The end of described just left slip tool rest is provided with the second ear and hooks folded block, described the second ear hooks the lower surface of folded block and is provided with the second ear that is fox shape and hooks bending groove, is provided with to drive near second ear at the feed spool pit of the stomach to hook the drive division that one end of folded block moves downward on described just left slip tool rest;
Described first hooks angle bending groove, hook angle bending skewback, described spiral body jig in the first plane, the plane at described raw material clamping draw-in groove place is lower than the first plane, described ear hooks the plane at body formed of Spiral Notebook and ear hook holding tank place higher than the first plane, the plane at described cutting knife place hooks the plane at holding tank place higher than ear, described the second ear hooks the plane at folded block place higher than the plane at ear hook holding tank place.
2. the coiling machine of forming strip pitch moral formula extension spring according to claim 1, it is characterized in that: the belt pitch helical form draw-in groove one end near described lower-left slip tool rest is provided with projection, between the inwall of described projection and belt pitch helical form draw-in groove, leave predetermined gap, described the first ear hooks with the junction of spiral body and can be fastened in gap.
3. the coiling machine of forming strip pitch moral formula extension spring according to claim 1 and 2, it is characterized in that: also comprise the first probe, described the first probe is arranged on the front side at the feed spool pit of the stomach, described the first probe can near and away from the direction motion at the feed spool pit of the stomach.
4. the coiling machine of forming strip pitch moral formula extension spring according to claim 3, it is characterized in that: also comprise the second probe, described the second probe is arranged on the front side at the feed spool pit of the stomach, described the second probe can near and away from the direction motion at the feed spool pit of the stomach.
5. the coiling machine of forming strip pitch moral formula extension spring according to claim 4, is characterized in that: also comprise manipulator, described manipulator is arranged on the front side at the feed spool pit of the stomach, and the rear side of described manipulator is provided with two grippers.
6. the coiling machine of forming strip pitch moral formula extension spring according to claim 5, it is characterized in that: the anterior end surface of described spiral body jig is provided with forming blocks slot to make way, described forming blocks slot to make way and ear hook the form fit of body formed rear side of Spiral Notebook.
7. the coiling machine of forming strip pitch moral formula extension spring according to claim 6, is characterized in that: the anterior end surface of described belt pitch helical form draw-in groove is provided with cutting knife slot to make way the form fit of described cutting knife slot to make way and cutting knife rear side.
8. a method for forming strip pitch moral formula extension spring, described forming method uses the coiling machine of power 1 to the forming strip pitch moral formula extension spring described in power 5, it is characterized in that: comprise the steps,
Step 1: raw material is constantly sent from the feed spool pit of the stomach;
Step 2, described just right slip tool rest, just goes up slip tool rest all to feed spool pit of the stomach motion, and the raw material clamping draw-in groove of described just right slip tool rest in the future material blocks, and the ear of just go up slip tool rest hooks body formed formation of lots the first ear hook of Spiral Notebook;
Step 3, just right slip tool rest, just go up slip tool rest and retreat reset, described upper left slip tool rest, bottom right slip tool rest move to the feed spool pit of the stomach, first of the hook angle bending drift angle of the hook angle bending skewback of described upper left slip tool rest and bottom right slip tool rest hooks angle bending groove and moves to respectively the both sides that the first ear hooks, hook angle bending skewback the first ear is hooked to top to the first hook angle bending groove, realize bending, moulding first hooks angle;
Step 4, upper left slip tool rest, bottom right slip tool rest are return reset, described just right slip tool rest, just go up slip tool rest all to feed spool pit of the stomach motion, the raw material clamping draw-in groove of described just right slip tool rest in the future material blocks, and just go up the body formed formation of lots spiral of the ear hook Spiral Notebook body of slip tool rest;
Step 5, the raw material clamping draw-in groove of described just right slip tool rest continues supplied materials to block, the ear of just going up slip tool rest hooks body formed formation of lots the second ear of Spiral Notebook and hooks, and the second ear after moulding hooks respectively and hooks with the first ear, spiral body is vertical, obtains semi-finished product belt pitch moral formula extension spring;
Step 6, just right slip tool rest, just go up slip tool rest and all returning reset, described positive lower slider tool rest, slip tool rest in upper left moves to semi-finished product belt pitch moral formula extension spring, the belt pitch helical form hypotenuse of the positive belt pitch helical form draw-in groove of lower slider tool rest and the hook angle bending skewback of upper left slip tool rest is located semi-finished product belt pitch moral formula extension spring, the first ear hooks with the junction of spiral body and is fastened in the gap of spiral body jig, the hook angle bending drift angle that hooks angle bending skewback carries out bending second to the second ear hook and hooks angle, the tool rest of upper right slip simultaneously, slip tool rest in lower-left all hooks motion to the second ear hooking with the first ear and spiral body is vertical, the ear of upper right slip tool rest hooks holding tank the supplied materials end of the second ear hook is clamped, the supplied materials end-grain cutting that the cutting knife of lower-left slip tool rest hooks the second ear is disconnected,
Step 7, upper right slip tool rest, lower-left slip tool rest are return reset, described semi-finished product belt pitch moral formula extension spring continues to be located by belt pitch helical form draw-in groove and belt pitch helical form hypotenuse, described just left slip tool rest hooks motion to the second ear hooking with the first ear and spiral body is vertical, and by drive division, one end of the second ear hook folded block that is positioned at front side, the feed spool pit of the stomach is moved down, by the second ear hook bending be respectively with the first ear hook, spiral body is parallel, obtains finished product belt pitch moral formula extension spring;
Step 8, just left slip tool rest, upper left slip tool rest are return reset, and manipulator takes out finished product belt pitch moral formula extension spring.
9. the method for forming strip pitch moral formula extension spring according to claim 8, is characterized in that: in step 4, in the time that described ear hooks the spiral body of the body formed formation of lots 1/2 of Spiral Notebook, the first probe hooks motion to the first ear.
10. the method for forming strip pitch moral formula extension spring according to claim 9, is characterized in that: hook before the complete moulding of motion rear screw body to the first ear at the first probe, the second probe hooks motion to the first ear.
CN201410300928.1A 2014-06-27 2014-06-27 The coiling machine of formed strip pitch moral formula extension spring and method Active CN104084508B (en)

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CN109773483A (en) * 2018-12-24 2019-05-21 贵阳万江航空机电有限公司 A kind of method of plug blades forming parts
CN110450353A (en) * 2019-08-23 2019-11-15 吴振飞 A kind of deformable injection mold used
CN111545688A (en) * 2020-05-18 2020-08-18 苏州兆能精密弹簧五金有限公司 Annular pressure spring forming equipment and forming method

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Address after: Kunshan City Qiandeng Town Yuxi road 215134 Jiangsu province No. 168

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Address before: Yuxi West Road, Kunshan City Qiandeng Town Suzhou City, Jiangsu Province, No. 168 215134

Patentee before: Freewon (China) Co., Ltd.