CN107598034A - The combination shearing device and its method of a kind of spring flat nick - Google Patents
The combination shearing device and its method of a kind of spring flat nick Download PDFInfo
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- CN107598034A CN107598034A CN201710872942.2A CN201710872942A CN107598034A CN 107598034 A CN107598034 A CN 107598034A CN 201710872942 A CN201710872942 A CN 201710872942A CN 107598034 A CN107598034 A CN 107598034A
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- spring
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- push broach
- knife
- port
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010008 shearing Methods 0.000 title claims abstract description 18
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 45
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 238000007598 dipping method Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention relates to a kind of shearing device of spring and its method.The combination shearing device and its method of a kind of spring flat nick, including upper cutter, core knife and lower push broach；Upper cutter and lower push broach are located above and below spring respectively, core cutter spacing is in the axis direction of spring, upper cutter is located at the both sides up and down of spring cut-off port with core knife respectively, lower push broach is located at outside spring, upper cutter moves downward the formation pre-cut edge of a knife at spring cut-off port, and motion forms pre-cut tool marks to core knife at spring cut-off port upwards.The invention provides a kind of easy to operate, the cut-off port of spring steel wire meets to require to central perpendicularity and flatness, it is not necessary to carry out it is secondary polish operation, combine shearing device and its method than a kind of of spring suitable for curling up greatly；Solve in the apparatus and method that spring wind present in prior art is molded, requirement can not be met to central perpendicularity and flatness, it is necessary to carry out secondary operation in the fracture of spring, device structure complicated technical problem.
Description
Technical field
The present invention relates to a kind of shearing device of spring and its method, more particularly to it is a kind of for using turning round the progress of butt formula
The combination shearing device and its method of the spring flat nick of cut-out.
Background technology
The species of spring is a lot, and the application of spring is also very extensive.In the industry such as machinery, automobile, tractor, electric, bullet
One of machine components the most basic during spring.Cut-out mode for spring steel wire, typically there are vertical cut, pendulum cut, are cut to cutting or turning round
Etc. mode, vertical cut, pendulum are cut or are the cutting methods that directly act on spring coiling machine cutting edge roundness on spring wire to cutting, for knife
Tool cutting edge has very big extrusion stress, causes cutter frequent breakage to change, and the bigger using limiting to of butt formula is turned round, for big rotation
Around than, shaped filaments and requiring that strict spring processing has fatal influence.General curl up greatly can only use vertical cut, pendulum than spring
Cut and to butt formula.But the incision position of the spring steel wire Jing Guo above-mentioned cut-out mode to central perpendicularity and incision position
Flatness is not fine, it is necessary to be reprocessed to fracture end face, ensures and the flatness vertical to center of fracture end face.
In present open file, also there are the file much on spring forming, such as Chinese patent：" the axle spiral pressure of high precision numerical control eight
Contracting spring forming machine (CN205341763U) ", containing machine tool main body, aligning mechanism, compress feed mechanism, upper diameter changing mechanism, section
Away from structure, mandrel, middle diameter changing mechanism, lower diameter changing mechanism, computer controling box, upper shut-off mechanism, lower shut-off mechanism.Using machinery and
Computer technology of closed loop and pressure technology is designed in conjunction forms, realizes that " mandrel-cut-out " is conjuncted.But the structure is relatively multiple
It is miscellaneous, and be also use traditional cut-out mode, still exist the flatness of spring steel wire incision position and to central perpendicularity not
It is good.
The content of the invention
It is easy to operate the invention provides a kind of simple in construction, the cut-off port of spring steel wire to central perpendicularity peace
Face degree meets to require, it is not necessary to carry out it is secondary polish operation, suitable for curl up greatly than spring it is a kind of combine shearing device and its
Method；Solve in the apparatus and method that spring wind present in prior art is molded, center is hung down in the fracture of spring
Straight degree and flatness can not meet requirement, it is necessary to carry out secondary operation, and device structure is complicated, unhandy technical problem.
The above-mentioned technical problem of the present invention is that solved by following technical proposals：A kind of combination cut-out of spring flat nick
Device, including upper cutter, core knife and lower push broach；Described upper cutter is located at the top of spring, and lower push broach is located at the lower section of spring,
For core cutter spacing in the axis direction of spring, upper cutter is located at the both sides up and down of spring cut-off port with core knife respectively, and lower push broach is located at bullet
Outside spring, upper cutter moves downward the formation pre-cut edge of a knife at spring cut-off port, and motion is formed core knife at spring cut-off port upwards
Pre-cut tool marks.Conventional spring cutting device is exactly to complete cutting after spring steel wire winding by upper cutter vertical cut mode substantially
Disconnected, often there is bad to central perpendicularity, flatness can not meet to require cut-off port, in the following process of spring,
Also need to polish the end fracture of spring, ensure cut-off port to centrad and flatness.And torsion butt formula is used to enter
The spring steel wire of row cut-out, generally be directed to less spring frequently is curled up, because curling up than small, due to its big, stress of rigidity
It is low, completed easily by butt formula is turned round.And the present invention is by setting upper cutter, core knife and lower push broach, by the cooperation of three knives,
Can complete to curl up greatly than spring cut off, and ensure cut-out while, cut-off port to centrad and flatness
It is good, it is not necessary to carry out secondary operation.Core cutter spacing is in the axial direction of spring, and the blade of core knife is in cutting for steel wire to be cut off
The lower section of fracture, to being rule below the cut-off port of spring steel wire, a mark is formed, then again by positioned at spring steel
The upper cutter of silk top does a pre-cut to spring steel wire, so as to have mark, spring steel in the upper and lower surfaces of spring steel wire
The edge of a knife of two pre-cut is located in same sagittal plane above and below silk, and this plane is vertical to center, therefore ensure that
After spring twists off, cut-off port to central perpendicularity and flatness.And due to curling up than bigger, the rigidity of spring steel wire
It is small, easily deform, this is also why to curl up greatly to cut than that can not turn round, because such steel wire is easily cut through in torsion
Pintle is formed in journey, it is bad to twist off effect.But present patent application is due to the pre-cut edge of a knife formed on spring steel wire and pre- stroke
Line, original stress structure of spring steel wire is destroyed, when lower push broach pushes up spring, due to the pre-cut edge of a knife and prescoring
Presence, form a reference plane, turn round shearing stress and act directly in cut-off port, cut-off port impulse- free robustness, to central perpendicularity
It is good with flatness.The present invention is after upper cutter and core knife form pre-cut to spring, and spring continues winding, and lower push broach is upward
When promotion, give spring one upward power, and the winding of spring steel wire in itself is also continuing, the cut-off port of spring during winding
The upward motive force superposition of rotary torsion and lower push broach in rotary moving on microcosmic so that spring steel wire can be rapidly in shape
Cut-off port into pre-cut completes flat nick and twists off cut-out.When make use of the motive force and spring forming that lower cutter is unidirectional itself
Rotation, it is not necessary to extra additional power-assisted can completes steel wire cut-out, and efficiency high, equipment is few, is widely used.
Preferably, the blade of described upper cutter and core knife be located at spring it is same in the radial direction.Conveniently to center
Form complete section, up and down simultaneously to center and positioned at it is same in the radial direction, ensure that being hung down to center when torsion is cut
Straight degree and flatness.
Preferably, described core knife includes head body and cutter head sword body, the cross section of described head body are provided with
Arcwall face, arcwall face is identical with the internal diameter radian of spring, and described cutter head sword body is located at the top of head body, the cutter head sword bodily form
Into a wedge angle.The arcwall face not being supported on core knife to spring only, it is often more important that one is formed on head body
Cutter head sword body, spring steel wire is rule using cutter head sword body, while coordinated with upper cutter, complete the pre-cut to cut-off port,
When allowing lower push broach push the spring to carry out torsion to cut, no pintle is quickly twisted off, cut-off port flatness is good.
Preferably, described lower push broach includes push broach cutter head, push broach cutter head is provided with inclined push broach face, described push broach
Face is outward-dipping by push broach cutter head, and push broach angle, the bullet that push broach angle is extend into where spring cut-off port are formed in the bottom in push broach face
In spring coil, spring body is located on the push broach face of lower push broach.The push broach of lower push broach is supported in face of spring, and push broach angle is quickly inserted
Enter in spring steel wire coil, lower push broach is moved upwards, and spring reverses cut-out.
A kind of combination cutting-off method of spring flat nick, it is characterised in that：The first step, on turn to be cut off, core
Axial movement of the knife along spring, marking is carried out by cut-off port of the core knife in spring；Second step, upper cutter move downward,
Pre-cut is carried out to spring steel wire, a pre-cut edge of a knife is formed at the cut-off port of spring；3rd step, lower push broach are moved upwards, under
The cutter head sword body of push broach is inserted into the turn where spring cut-off port, and spring steel wire stress reverses cut-out, is formed smooth
Spring flat nick.By pre-cut, then turn round and cut again, can allow, the nothing good to central perpendicularity and flatness of cut-off port that torsion cuts
Burr, cut-off port need not carry out secondary operation.Technique is simple, easy to operate.Upper cutter, lower push broach are the radial directions along spring
Motion, core knife is moved along the axial direction of spring.
Preferably, when upper cutter carries out pre-cut to spring steel wire in described second step, the depth of the pre-cut edge of a knife is bullet
The 1/6~1/3 of spring steel wire diameter.Fast and easy twists off, and completes to turn round cutting process.
Therefore, a kind of combination shearing device of spring flat nick of the invention and its method possess following advantages：Spring is put down
Combination cooperation of the shearing device by upper cutter and core knife of otch, a pre-cut is realized to spring steel wire, then again under
Push broach carries out torsion and cut, so as to ensure that spring steel wire cut-off port to central perpendicularity and flatness, and can be applied in
It is big curl up than spring on, spring has wide range of applications, and cut-off port flatness is good, simple in construction, easy to operate.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the combination shearing device of spring flat nick of the present invention.
Fig. 2 is the enlarged diagram of Fig. 1 inner core knives.
Fig. 3 is the enlarged diagram of lower push broach in Fig. 1.
Fig. 4 is turned off device and applies the schematic diagram on spring wind shaped device.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical scheme of invention is described in further detail.
Embodiment：
As shown in figure 1, a kind of combination shearing device of spring flat nick, including upper cutter 5, core knife 4 and lower push broach 8；On
Cutting knife 5 is located at the top of spring 9, and lower push broach 8 is located at the lower section of spring 9, and core knife 4 is located at the axis direction of spring 9.Upper cutter 5
It is located at the both sides up and down of spring steel wire cut-off port 6, and the cutter head sword body 10 of the blade of upper cutter 5 and core knife 4 respectively with core knife 4
Relatively, positioned at spring steel wire cut-off port 6 it is same in the radial direction.Lower push broach 8 is located at outside spring 9, in upper cutter 5 and core knife 4
After carrying out pre-cut to spring steel wire, lower push broach 8 is moved upwards, and spring twists off.
As shown in Fig. 2 wherein, core knife 4 includes head body 11 and cutter head sword body 10, and the cross section of head body 11 is provided with
Arcwall face, arcwall face is identical with the internal diameter radian of spring, and a support is carried out to spring, and is located at cutter head master in cutter head sword body 10
The top of body, cutter head sword body form a wedge angle.Wedge angle blade is rule to spring steel wire pre-cut, by the cooperation with upper cutter,
So that cut-off port respectively forms the pre-cut edge of a knife up and down, in the same plane, and this plane is vertical to center for two pre-cut edges of a knife.
As shown in figure 3, lower push broach include push broach seat 12 and with push broach first 13 that push broach seat 12 welds together.Wherein push broach
Seat is 12 L-shaped, and push broach seat 12 is by No. 45 steel makings, and push broach first 13 and the short side of push broach seat 12 weld, and push broach first 13 is
By wolfram steel manufacture.A push broach face 15 is formed in the side of push broach first 13, the one end in push broach face 15 is connected with supporting surface 14, pushed away
The other end of knife face 15 forms push broach angle α with the bottom of push broach head.Supporting surface 14 is integrally formed with push broach face 15, and supporting surface 14 is
The length ratio in plane, supporting surface 14 and push broach face 15 is probably 1:1 or so.Push broach face 15 is that arcwall face is either inclined flat
Face, the push broach angle α that the end in push broach face 15 is formed is 70 °.Push broach angle is extend into the turn where spring steel wire cut-off port,
The spring that winding is completed is located on the supporting surface face of lower push broach.
As shown in figure 4, a kind of auto reeling shaped device of spring steel wire, include the guiding for the spring steel wire being sequentially arranged
The combination shearing device of mechanism, the winding mechanism of spring steel wire and the spring flat nick such as Fig. 1.
The guiding mechanism of spring steel wire, including guide plate 1, guide plate cover plate 2, spring steel wire 3 are installed on guide plate 1
It is oriented to by guide plate 1, then on the winding mechanism of coiling to follow-up spring steel wire.
Spring steel wire winding mechanism, including the ram seat 16 at spring outer ring is arranged in, push rod is installed in ram seat 16
17, two curve gauges 7 are there also is provided simultaneously in spring outer ring, by the arrangement in the orientation of curve gauge 7, to complete spring steel wire volume
The regulation internal diameter of helical spring 9 is coiled into, push rod pushes out the spring of formation, pitch as defined in formation.
Upper cutter 5, curve gauge 7 and lower push broach 8 are sequentially arranged in the cylindrical circumferential direction of spring 9.Complete spring winding and
Cut-out.
A kind of combination cutting-off method of spring flat nick, it is characterised in that：The first step, on turn to be cut off, lead to
The cut-off port that core knife is crossed in spring carries out marking；Second step, upper cutter are moved downward, and pre-cut is carried out to spring steel wire,
A pre-cut edge of a knife is formed at the cut-off port of spring, when upper cutter carries out pre-cut to spring steel wire, the depth of the pre-cut edge of a knife is bullet
The 1/6~1/3 of spring steel wire diameter；3rd step, lower push broach are moved upwards, and the cutter head sword body of lower push broach is inserted into spring cut-off port institute
Turn in, spring steel wire stress reverse cut-out, form smooth spring flat nick.
Claims (6)
- A kind of 1. combination shearing device of spring flat nick, it is characterised in that：Including upper cutter, core knife and lower push broach；Described Upper cutter is located at the top of spring, and lower push broach is located at the lower section of spring, and core cutter spacing is in the axis direction of spring, upper cutter and core knife It is located at the both sides up and down of spring cut-off port respectively, lower push broach is located at outside spring, and upper cutter moves downward the shape at spring cut-off port Into the pre-cut edge of a knife, motion forms pre-cut tool marks to core knife at spring cut-off port upwards.
- A kind of 2. combination shearing device of spring flat nick according to claim 1, it is characterised in that：Described upper cutter With the blade of core knife be located at spring it is same in the radial direction.
- A kind of 3. combination shearing device of spring flat nick according to claim 1 or 2, it is characterised in that：Described core Knife includes head body and cutter head sword body, and the cross section of described head body is provided with the internal diameter of arcwall face, arcwall face and spring Radian is identical, and described cutter head sword body is located at the top of head body, and cutter head sword body forms a wedge angle.
- A kind of 4. combination shearing device of spring flat nick according to claim 1 or 2, it is characterised in that：Under described Push broach includes push broach cutter head, and push broach cutter head is provided with inclined push broach face, and described push broach face is outward-dipping by push broach cutter head, is pushing away Push broach angle formed on the bottom of knife face, and push broach angle is extend into the turn where spring cut-off port, and spring body is located at lower push broach Push broach face on.
- A kind of 5. combination cutting-off method of spring flat nick, it is characterised in that：The first step, on turn to be cut off, core knife Along the axial movement of spring, marking is carried out by cut-off port of the core knife in spring；Second step, upper cutter move downward, right Spring steel wire carries out pre-cut, and a pre-cut edge of a knife is formed at the cut-off port of spring；3rd step, lower push broach are moved upwards, under push away The cutter head sword body of knife is inserted into the turn where spring cut-off port, and spring steel wire stress reverses cut-out, forms smooth bullet Spring flat nick.
- A kind of 6. combination cutting-off method of spring flat nick according to claim 5, it is characterised in that：Described second step When interior upper cutter carries out pre-cut to spring steel wire, the depth of the pre-cut edge of a knife is the 1/6~1/3 of spring wire diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872942.2A CN107598034A (en) | 2017-09-25 | 2017-09-25 | The combination shearing device and its method of a kind of spring flat nick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872942.2A CN107598034A (en) | 2017-09-25 | 2017-09-25 | The combination shearing device and its method of a kind of spring flat nick |
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| Publication Number | Publication Date |
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| CN107598034A true CN107598034A (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710872942.2A Pending CN107598034A (en) | 2017-09-25 | 2017-09-25 | The combination shearing device and its method of a kind of spring flat nick |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976721A (en) * | 2019-11-22 | 2020-04-10 | 常州泰瑞弹簧有限公司 | Stress breaking process of automatic spring coiling machine for spring steel wires |
| CN114420443A (en) * | 2022-03-29 | 2022-04-29 | 绵阳聚贤自动化设备有限公司 | Pre-cutting process of network filter |
| CN114589276A (en) * | 2022-03-14 | 2022-06-07 | 杭州弹簧有限公司 | Spring processing method and spring processing equipment |
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| JPH06315732A (en) * | 1993-05-10 | 1994-11-15 | Itaya Seisakusho:Kk | Spring cutting mechanism |
| JPH10180384A (en) * | 1996-12-19 | 1998-07-07 | Asahi Seiki Mfg Co Ltd | Method for cutting coil spring |
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| KR20150029948A (en) * | 2013-09-11 | 2015-03-19 | 양재준 | Cutting tool for coil spring and apparatus for manufacturing of coil spring |
| CN105377466A (en) * | 2013-07-18 | 2016-03-02 | 瓦菲奥斯股份公司 | Method and device for producing coil springs by spring winding |
| CN106040920A (en) * | 2016-08-22 | 2016-10-26 | 陶胜治 | Stress breaking process of automatic spring coiler for spring wires |
| CN207239016U (en) * | 2017-09-25 | 2018-04-17 | 杭州富春弹簧有限公司 | The flat nick disconnecting device of spring |
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2017
- 2017-09-25 CN CN201710872942.2A patent/CN107598034A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06315732A (en) * | 1993-05-10 | 1994-11-15 | Itaya Seisakusho:Kk | Spring cutting mechanism |
| JPH10180384A (en) * | 1996-12-19 | 1998-07-07 | Asahi Seiki Mfg Co Ltd | Method for cutting coil spring |
| CN104107870A (en) * | 2013-04-18 | 2014-10-22 | 瓦菲奥斯股份公司 | Spring winding machine with an adjustable cutting device |
| CN105377466A (en) * | 2013-07-18 | 2016-03-02 | 瓦菲奥斯股份公司 | Method and device for producing coil springs by spring winding |
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| CN104399844A (en) * | 2014-12-26 | 2015-03-11 | 福建永动力弹簧科技有限公司 | Processing and molding module for spring with rectangular section |
| CN106040920A (en) * | 2016-08-22 | 2016-10-26 | 陶胜治 | Stress breaking process of automatic spring coiler for spring wires |
| CN207239016U (en) * | 2017-09-25 | 2018-04-17 | 杭州富春弹簧有限公司 | The flat nick disconnecting device of spring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976721A (en) * | 2019-11-22 | 2020-04-10 | 常州泰瑞弹簧有限公司 | Stress breaking process of automatic spring coiling machine for spring steel wires |
| CN114589276A (en) * | 2022-03-14 | 2022-06-07 | 杭州弹簧有限公司 | Spring processing method and spring processing equipment |
| CN114420443A (en) * | 2022-03-29 | 2022-04-29 | 绵阳聚贤自动化设备有限公司 | Pre-cutting process of network filter |
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