CN110899566B - Spring machine pushing pitch mechanism and spring pushing pitch method - Google Patents
Spring machine pushing pitch mechanism and spring pushing pitch method Download PDFInfo
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- CN110899566B CN110899566B CN201911257699.9A CN201911257699A CN110899566B CN 110899566 B CN110899566 B CN 110899566B CN 201911257699 A CN201911257699 A CN 201911257699A CN 110899566 B CN110899566 B CN 110899566B
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- spring
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- rod core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F3/00—Coiling wire into particular forms
- B21F3/02—Coiling wire into particular forms helically
- B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like
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Abstract
The invention discloses a spring machine pitch pushing mechanism and a spring pitch pushing method, belonging to the field of spring machines, wherein the spring machine pitch pushing mechanism comprises: the rod core is rotatably arranged on the spring machine; the push plate is fixed on the rod core and is close to the discharge end of the rod core; the push plate is used for pushing the wire extruded from the discharge end along with the rotation of the rod core, so that the pitch of the spring formed by the wire is adjusted. The spring machine pushing pitch mechanism disclosed by the invention can realize simplified structure, save spring forming space, realize the forming of spring pitch at any angle in the circumferential direction of the rod core, is not influenced by the position of a cutter, and has stable forming spring pitch and smooth end surface.
Description
Technical Field
The invention relates to the field of spring machines, in particular to a spring machine pitch pushing mechanism and a spring pitch pushing method.
Background
The spring machine mainly comprises the following components in the process of machining a spring: the working contents of wire feeding, diameter changing, pitch changing, material cutting and the like. After the spring wire is extruded by the rod core, the diameter of the spring wire needs to be changed by the diameter changing push broach, and the pitch is changed by the pitch push broach. In the conventional pitch pushing mechanism of the spring machine, a push broach is usually arranged on a sliding block of the spring machine, and the push broach is close to a rod core by driving the sliding block to slide on a sliding seat, so that the push broach pushes a wire extruded by the rod core to change the pitch of a spring formed by bending the wire; alternatively, the spring machine is provided with a servo motor, a pitch shaft, a pitch screw transmission pair, a push handle, a cam and the like to realize pitch adjustment, for example, the intelligent computer numerical control spring machine disclosed in the Chinese patent publication No. CN201432073 and the low-noise high-speed spring coiling machine disclosed in the Chinese patent publication No. CN209288168U adopt the structure disclosed by the pitch adjusting mechanism.
The variable-pitch structures are very complex, occupy large space when being installed on a spring machine, and influence the forming space of the spring and the work of other parts; meanwhile, the existing variable-pitch structure is complex, large in size and influenced by the position of a cutter, and the spring pitch adjusting angle is limited because the spring pitch adjusting mechanism cannot integrally rotate after being installed on a spring machine; and, because of the push-type broach is connected in the drive structure through complicated structure, remove certain distance and promote the spring and then adjust the pitch through the drive push-type broach, lead to the spring tip unevenness, be difficult for measuring, receive when the spring wire rod extrudes and produce small deviation all can lead to the push-type broach to promote not in place and make the pitch adjust inaccurate with the spring contact when predetermineeing the distance, lead to the shaping spring pitch unstable, influence product quality.
The existing pitch-variable mechanism of the spring machine is still used as an independent mechanism on the spring machine by paying attention to the replacement of various components such as a pitch shaft, a pitch screw rod transmission pair, a pushing handle, a cam and the like, the connection and matching of the components and the improvement of the shape and the structure of the components, namely the complex structure of the existing pitch-variable mechanism still guides an improver to deform the structure and the matching relation of the components, the thinking is still accumulated outside, and the simplification of the whole structure and the improvement of the pitch-variable stability are still difficult. If the defect of the existing variable-pitch mechanism can be overcome, the forming space of the spring around the rod core can be greatly saved, the free space can be used for installing other mechanisms to increase the functions of the spring machine, the maintenance and modification cost of the variable-pitch mechanism of the spring machine is reduced, and the production cost of the spring machine is reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a spring machine pitch pushing mechanism, so that the structure is simplified, the spring forming space is saved, the spring pitch can be formed at any angle in the circumferential direction of a rod core, the influence of the position of a cutter is avoided, the formed spring pitch is stable, and the end face is flat.
The technical scheme adopted by the invention is as follows:
the invention provides a spring machine pushing pitch mechanism, which comprises: the rod core is rotatably arranged on the spring machine; the push plate is fixed on the rod core and is close to the discharge end of the rod core; the push plate is used for pushing the wire extruded from the discharge end along with the rotation of the rod core, so that the pitch of the spring formed by the wire is adjusted.
As a further improvement of the scheme, the axis of the rod core is parallel to the push plate.
As a further improvement of the scheme, one side edge of the push plate close to the discharge end is flush with the discharge end.
As a further improvement of the scheme, one side part of the push plate, which is close to the discharge end and is in contact with the wire extruded from the discharge end, is set to be an inclined arc surface part.
As a further improvement of the scheme, a connecting plate is arranged on one side of the push plate, which is far away from the discharge end; the push plate is detachably arranged on the rod core through the connecting plate.
As a further improvement of the solution, the connecting plate is connected with the side wall of the rod core by a screw.
The invention also provides a spring pitch pushing method, which is suitable for the spring machine pitch pushing mechanism and comprises the following steps:
programming on a control box of the spring machine according to the parameters of the preprocessed spring;
extruding a wire rod from the discharge end of the rod core, pushing the wire rod by a reducing push broach to adjust the outer diameter of a spring formed by bending the wire rod;
the control box controls the driving mechanism to drive the rod core to rotate, and the rod core drives the push plate to rotate, so that the push plate pushes against the wire rod subjected to diameter reduction by the diameter-reducing push knife;
the rod core drives the push plate to rotate to different angles, so that the push plate pushes the wire to form springs with different pitches.
Compared with the prior art, the invention has the beneficial effects that:
according to the spring machine pushing pitch mechanism provided by the invention, the push plate is arranged on the rod core of the spring machine close to the discharge end of the rod core, and the rod core rotates to drive the push plate to rotate, so that the push plate pushes against a wire rod which is extruded from the discharge end of the rod core and is subjected to diameter reduction through the diameter-reducing push knife of the spring machine, the distance between two adjacent circles of the wire rod which is extruded from the discharge end and is pushed by the push plate can be adjusted by driving the push plate to rotate by different angles through the rod core, and the pitch of a spring formed by the wire rod is adjusted. Therefore, the spring machine pitch pushing mechanism provided by the invention can adjust the pitch of the spring only by the matching arrangement of the rod core and the push plate, completely abandons the existing complex pitch changing structure, greatly simplifies the pitch changing structure of the existing spring machine, saves the spring forming space, is beneficial to spring forming, and is beneficial to installing other push broach mechanisms, and the push plate can rotate 360 degrees along with the rod core, so that the spring pitch can be formed at any angle in the circumferential direction of the rod core, the adaptability to various pre-forming springs is wider, the pre-forming springs are not influenced by other cutter positions, the push plate is fixed at one end of the rod core close to the discharge end of the rod core, the push pitch does not need to be moved to the rod core for pushing, the pitch of the forming spring is stable, and the end part of the spring is pushed by the push plate to move forward along the side surface of the push plate after the diameter of the spring is changed along with the diameter-changing push knife, so that the end surface of the spring is flat and easy to measure, and the quality of the spring is improved. Simultaneously, the excellent core is for the ejection of compact of spring machine from the area, and the excellent core is originally rotatable setting promptly, consequently can only need install the push pedal additional on the excellent core of current spring machine can, need not to adopt current complicated variable pitch structure, greatly reduced the manufacturing cost of repacking cost and spring machine.
Drawings
FIG. 1 is a schematic front view of a spring-loaded pitch mechanism provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a right side view of a spring motor pitch mechanism provided in an embodiment of the present invention;
FIG. 3 is a schematic front view of a push plate according to an embodiment of the present invention;
FIG. 4 is a schematic bottom view of a push plate according to an embodiment of the present invention;
FIG. 5 is a schematic front view of a spring motor pitch mechanism provided in an embodiment of the present invention in an operational state;
FIG. 6 is a schematic diagram of a right side view of the pitch mechanism of the spring machine according to the embodiment of the present invention in an operating state (initial stage of spring forming);
FIG. 7 is a schematic diagram of a first right-side view of a spring machine pitch mechanism according to an embodiment of the present invention in an operating state (at a later stage of spring forming);
fig. 8 is a second structural diagram of the spring machine in a right side view when the pitch pushing mechanism provided in the embodiment of the present invention is in an operating state (at the later stage of spring forming);
FIG. 9 is a schematic structural view of a spring machine push pitch mechanism provided in an embodiment of the present invention mounted on a spring machine;
fig. 10 is a schematic flow chart of a spring pitch pushing method according to an embodiment of the present invention.
In the figure:
1. a rod core; 2. pushing the plate; 10. a discharge end; 20. inclining the cambered surface part; 3. a connecting plate; 4. a variable-diameter push broach; 5. a spring; 6. and (4) screws.
Detailed Description
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings and technical solutions required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 9, the pitch pushing mechanism of the spring machine provided by this embodiment includes a rod core 1 and a push plate 2, the rod core 1 is rotatably disposed on the spring machine, the rod core 1 can be a rod core 1 for discharging provided on the spring machine, the push plate 2 is fixed on the rod core 1 and is close to a discharging end 10 of the rod core 1, wherein the push plate 2 is configured to push against a wire extruded from the discharging end 10 along with the rotation of the rod core 1, so as to adjust a pitch of a spring formed by the wire. Rotate through excellent core 1 and drive push pedal 2 and rotate to make push pedal 2 push away to push away from the wire rod after 1 discharge end 10 of excellent core extrude and the reducing push-type broach 4 reducing of spring machine, drive push pedal 2 through excellent core 1 and rotate different angles and can adjust the distance between two adjacent rings of push pedal 2 promotion wire rod extruded from discharge end 10, thereby adjust the pitch of the spring that the wire rod formed. Therefore, the pitch-pushing mechanism of the spring machine provided by the embodiment can adjust the pitch of the spring only by the matching arrangement of the rod core 1 and the push plate 2, greatly simplifies the pitch-changing structure of the existing spring machine, saves the spring forming space, is beneficial to spring forming, and is beneficial to installing other push knife mechanisms to increase the functions of the spring machine, and the push plate 2 can rotate with the rod core 360 degrees, so that the spring pitch can be formed at any angle in the circumferential direction of the rod core 1, the applicability to preformed springs of various shapes is wider, and is not influenced by other knife positions, and the push plate 2 is fixed on the rod core 1 close to the discharge end 10, wires extruded from the discharge end 10 are directly abutted against the side surface of the push plate 2 after being subjected to diameter changing by the diameter-changing push knife 4, the pitch pushing is carried out without moving a preset distance to the rod core 1, the pitch of the formed spring is stable, and the end part of the spring is pushed by the push plate 2 to advance along the side surface of the push, the end face of the spring is smooth and easy to measure, and the quality of the spring can be improved.
Specifically, stick core 1 is the ejection of compact of spring machine own for stick core, and stick core 1 originally is rotatable setting promptly, has on the spring machine to be used for driving 1 pivoted actuating mechanism of stick core (for example can realize the stick core rotation for gear drive and motor cooperation), and this actuating mechanism is connected with the control box electricity of spring machine, can control actuating mechanism drive stick core 1 turned angle through the control box, and can program on the control box in order to control stick core 1 and rotate corresponding angle according to the spring pitch of preprocessing, stick core, actuating mechanism and numerical control spring machine are more mature prior art, for example CNC502 numerical control spring machine. Therefore, the push plate 2 can be additionally arranged on the rod core of the existing spring machine, the existing complex variable-pitch structure is not needed, the refitting is convenient, and the refitting cost is greatly reduced. The spring pushing pitch is achieved by ingeniously utilizing the matching of the structure of the spring machine and the pushing plate, the design is ingenious, the effect of giving no intention is achieved, the structure is extremely simple but extremely practical, and the production cost of the spring machine and the maintenance cost of the pitch-variable mechanism are greatly reduced.
In order to facilitate the pushing plate 2 to push the wire, further, the axis of the rod core 1 is parallel to the pushing plate 2, preferably, the axis of the rod core 1 is located in the plane of the side wall of the pushing plate 2, and the pushing plate 2 is arranged along the axial direction of the rod core 1 and is perpendicular to the circumferential outer side wall of the rod core 1. Through adopting above structure, easily push pedal 2 rotates along with the excellent core and when pushing away the wire rod, the wire rod can with push pedal 2 lateral wall smooth contact, make spring shaping pitch more stable.
In order to improve the stability of the pushing plate 2 to the wire, further, one side of the pushing plate 2 close to the discharging end 10 is flush with the discharging end 10, and preferably, the pushing plate 2 is a rectangular pushing plate 2. Through adopting above structure for the spring that discharge end 10 was extruded is behind the 4 reducing of reducing broach, no matter the reducing size, all can make the wire rod lead to push pedal 2 one side by push pedal 2 and the side of discharge end parallel and level 10, guarantees to push away the stability of pitch, makes spring shaping pitch more stable.
Further, a side portion of the push plate 2 which is close to the discharge end 10 and is in contact with the wire extruded from the discharge end 10 is provided as an inclined arc surface portion 20. By adopting the arrangement, when the push plate 2 pushes the wire rod with the diameter changed by the diameter changing push knife 4, the wire rod is smoothly guided to one side of the push plate 2 along the inclined cambered surface part 20, so that the wire rod is smoothly bent and advanced to form a spring, and the stability of spring forming is facilitated. Specifically, the angle formed between the tangent line of the inclined cambered surface part 20 and the side wall of the push plate 2 is smaller than 45 degrees, so that the wire can be smoothly guided to one side of the push plate 2 when the push plate pushes the wire, and the forming stability of the spring is better.
In order to facilitate the installation and the disassembly between the push plate 2 and the rod core 1, further, one side of the push plate 2 far away from the discharge end 10 is provided with a connecting plate 3, and the push plate 2 is detachably arranged on the rod core 1 through the connecting plate 3. By adopting the structure, the push plate 2 can be conveniently arranged on the rod core 1 and the push plate 2 can be conveniently detached and replaced, and the push plate 2 with different widths and lengths can be replaced according to the parameters of the outer diameter, the pitch and the like of different preprocessed springs, so that the adaptability of the push plate can be improved. Of course, the push plate 2 can also be directly welded and fixed on the rod core 1.
Furthermore, threaded blind holes are formed in the side wall of the rod core 1, the connecting plate 3 is connected with the side wall of the rod core 1 through screws, and the screws penetrate through holes of the connecting plate 3 and are screwed into the threaded blind holes in the rod core 1 to realize the connection and fixation between the connecting plate 3 and the rod core 1, so that the push plate 2 is convenient to mount and fix. Of course, the connecting plate can also be directly welded and fixed on the side wall of the rod core 1.
As shown in fig. 10, the present embodiment further provides a spring pitch pushing method, which is suitable for the spring pitch pushing mechanism, and includes the steps of:
programming on a control box of the spring machine according to parameters such as the outer diameter, the pitch and the like of a preprocessed spring so that the rod core 1 can rotate according to the preset spring pitch;
before the rod core 1 extrudes a wire, the control box controls the driving mechanism to drive the rod core 1 to rotate, so that the push plate 2 rotates to one side of a radial perpendicular bisector of the rod core 1 along with the rod core 1, and the diameter-changing bending of the extruded wire along with the diameter-changing push knife 4 is not resisted;
the discharge end 10 of the rod core 1 extrudes a wire, the wire bends downwards under the action of gravity, and the diameter-variable push broach 4 pushes the wire to adjust the outer diameter of a spring formed by bending the wire; the reducing push broach 4 arranged on the spring machine is positioned at the front part of the discharge end 10, the wire extruded by the discharge end 10 is positioned between the discharge end 10 and the reducing push broach 4, and the reducing push broach 4 can move up and down according to a preset program to reduce the diameter of the wire. The reducing push broach 4 is mature in the prior art, and a mechanism for driving the reducing push broach 4 to move through a slide block, a slide seat and the like is arranged on the spring machine and positioned above the rod core 1;
the control box controls the driving mechanism to drive the rod core 1 to rotate, the rod core 1 drives the push plate 2 to rotate from one side of a radial perpendicular bisector of the rod core 1 to the position below the perpendicular bisector to push against the wire subjected to diameter reduction by the diameter-reducing push knife 4 and to continue to rotate so as to push the wire, the push plate 2 pushes against the wire subjected to diameter reduction by the diameter-reducing push knife 4 according to a preset programmed pitch, and the continuously extruded wire is subjected to diameter reduction by the diameter-reducing push knife 4 and then guided to one side of the push plate along the inclined cambered surface part 20 of the push plate 2 to be;
the rod core 1 continuously extrudes the wire, and the control box controls the driving mechanism to drive the rod core 1 to drive the push plate 2 to rotate a plurality of different angles in sequence, so that the push plate 2 pushes the wire to form a spring with different pitches.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (7)
1. The utility model provides a coiling machine pushes away pitch mechanism, includes excellent core (1), rotationally sets up on the coiling machine, its characterized in that:
the device also comprises a push plate (2) which is fixed on the rod core (1) and is close to the discharge end (10) of the rod core (1);
the push plate (2) is used for pushing the wires extruded from the discharge end (10) along with the rotation of the rod core (1) so as to adjust the pitch of the spring formed by the wires.
2. The spring-loaded pitch mechanism of claim 1, wherein:
the axis of the rod core (1) is parallel to the push plate (2).
3. A spring machine pitch mechanism according to claim 2, wherein:
the push plate (2) is close to one side edge of the discharge end (10) and is flush with the discharge end (10).
4. The spring-loaded pitch mechanism of claim 1, wherein:
the side portion, which is close to the discharge end (10) and is contacted with the wire extruded by the discharge end (10), of the push plate (2) is set to be an inclined arc surface portion (20).
5. The spring-loaded pitch mechanism of claim 1, wherein:
a connecting plate (3) is arranged on one side of the push plate (2) far away from the discharge end (10);
the push plate (2) is detachably arranged on the rod core (1) through the connecting plate (3).
6. The spring-loaded pitch mechanism of claim 5, wherein:
the connecting plate (3) is connected with the side wall of the rod core (1) through a screw (6).
7. A spring push pitch method applied to a spring machine push pitch mechanism according to any one of claims 1 to 6, comprising the steps of:
programming on a control box of the spring machine according to the parameters of the preprocessed spring;
the rod core (1) extrudes a wire from a discharge end (10), and the reducing push broach (4) pushes the wire to adjust the outer diameter of a spring formed by bending the wire;
the control box controls the driving mechanism to drive the rod core (1) to rotate, the rod core (1) drives the push plate (2) to rotate, and the push plate (2) pushes the wire rod subjected to diameter reduction by the diameter-reducing push knife (4);
the rod core (1) drives the push plate (2) to rotate for a plurality of angles in sequence, so that the push plate (2) pushes the wire to form a spring with different pitches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257699.9A CN110899566B (en) | 2019-12-10 | 2019-12-10 | Spring machine pushing pitch mechanism and spring pushing pitch method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257699.9A CN110899566B (en) | 2019-12-10 | 2019-12-10 | Spring machine pushing pitch mechanism and spring pushing pitch method |
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| Publication Number | Publication Date |
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| CN110899566A CN110899566A (en) | 2020-03-24 |
| CN110899566B true CN110899566B (en) | 2021-04-30 |
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Citations (7)
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|---|---|---|---|---|
| CN1068281A (en) * | 1992-07-21 | 1993-01-27 | 国营江南机器厂 | Method and device for controlling pitch of manual coil spring |
| CN101214523A (en) * | 2008-01-01 | 2008-07-09 | 长安汽车（集团）有限责任公司 | Automatically coiling method for overlength sheath spring |
| KR20090000405U (en) * | 2007-07-11 | 2009-01-15 | 케이비엠 주식회사 | Oval Type Aluminium Coiling Machine |
| CN202921839U (en) * | 2012-10-16 | 2013-05-08 | 缙云县银丰弹簧设备制造有限公司 | Spring machine pitch fine adjustment mechanism |
| CN105592952A (en) * | 2013-09-26 | 2016-05-18 | 中央发条株式会社 | Coil-spring formation method and formation device |
| JP2016203240A (en) * | 2015-04-28 | 2016-12-08 | 日本発條株式会社 | Coiling machine and method for manufacturing coil spring |
| CN206794609U (en) * | 2017-05-31 | 2017-12-26 | 常山县奥申电器有限公司 | Hot coiling spring machine |
-
2019
- 2019-12-10 CN CN201911257699.9A patent/CN110899566B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068281A (en) * | 1992-07-21 | 1993-01-27 | 国营江南机器厂 | Method and device for controlling pitch of manual coil spring |
| KR20090000405U (en) * | 2007-07-11 | 2009-01-15 | 케이비엠 주식회사 | Oval Type Aluminium Coiling Machine |
| CN101214523A (en) * | 2008-01-01 | 2008-07-09 | 长安汽车（集团）有限责任公司 | Automatically coiling method for overlength sheath spring |
| CN202921839U (en) * | 2012-10-16 | 2013-05-08 | 缙云县银丰弹簧设备制造有限公司 | Spring machine pitch fine adjustment mechanism |
| CN105592952A (en) * | 2013-09-26 | 2016-05-18 | 中央发条株式会社 | Coil-spring formation method and formation device |
| JP2016203240A (en) * | 2015-04-28 | 2016-12-08 | 日本発條株式会社 | Coiling machine and method for manufacturing coil spring |
| CN206794609U (en) * | 2017-05-31 | 2017-12-26 | 常山县奥申电器有限公司 | Hot coiling spring machine |
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