CN104550377A - One-step forming device of reverser bent hook - Google Patents
One-step forming device of reverser bent hook Download PDFInfo
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- CN104550377A CN104550377A CN201410706497.9A CN201410706497A CN104550377A CN 104550377 A CN104550377 A CN 104550377A CN 201410706497 A CN201410706497 A CN 201410706497A CN 104550377 A CN104550377 A CN 104550377A
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- bending
- commutator
- mount pad
- sleeve
- bent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/06—Manufacture of commutators
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a one-step forming device of a reverser bent hook, and belongs to the technical field of a reverser. The one-step forming device solves the technical problems that the reverser of the existing forming device cannot be easily taken down, the structure is complicated, and in addition, the production cost is high. The one-step forming device of the reverser bent hook comprises an installing seat, a bent sleeve and a bent round disc, wherein the upper end of the installing seat is provided with an installing shaft, an installing platform is formed between the installing shaft and the installing seat, a first outer conical surface is arranged between the installing platform and the outer surface of the installing seat, the reverser is provided with a bent part abutted against the first outer conical surface, the bent sleeve is arranged on the installing seat in a sleeving way and can move relative to the installing seat, and the bent round disc is arranged outside the bent sleeve in a sleeving way and can move relative to the bent sleeve. In the bent process, only one surface of the inner side wall of the bent part is sequentially in contact with the installing seat, the bent sleeve and the bent round disc, and the reverser can be easily taken down from the forming device. The whole forming device has the advantages that the structure is simpler, the dismounting and the mounting are convenient, and meanwhile, the production cost is reduced.
Description
Technical field
The invention belongs to commutator topology field, relate to a kind of shaping commutator shaped device, especially a kind of commutator crotch one-shot forming apparatus.
Background technology
Commutator is parts in order to motor can be allowed to continue to rotate down on DC permanent magnet series-wound motor, its by multiple contact chip around forming a circle, between environment for use and need of work own, each contact chip needs outwards to be bent to form a crotch after commutator is shaping, and the angle angle of crotch and commutator outer surface is less than 90 degree.
Traditional commutator crotch is generally made up of multiple working procedure, every procedure needs to be equipped with corresponding equipment, every complete equipment operates by corresponding operating personnel, so cause working (machining) efficiency lower, processing cost is larger, therefore, people have invented a kind of mould of energy disposal molding commutator crotch.
Such as, Authorization Notice No. is that the utility model of CN 201374491 Y discloses a kind of one-shot forming die for commutator crotch, comprise, lower mold holder, described lower mold holder is provided with concave-convex mold, described top mold frame is provided with the punch corresponding with this concave-convex mold and die, die is fixedly connected with described top mold frame, punch is movably set in die, punch is locked mutually by punch locking device and die, the top of punch is provided with punch returning device, although this mould can by commutator crotch disposal molding, but also there is following technical problem simultaneously, 1, contact chip is mutually moved by plumbness to the outer cone table top of the state of bending inwards by concave-convex mold inner cone table top and die and is formed, particularly when the crotch angle of contact chip reduces gradually by 90 degree, relative two masks of concave-convex mold and die contact chip respectively have active force, the bending part of contact chip is sandwiched between the outer cone table top of concave-convex mold inner cone table top and die, concave-convex mold, certain frictional force is there is between die and contact chip three, therefore, contact chip is easily sandwiched between concave-convex mold and die and makes contact chip be difficult to the demoulding, shaped device is caused to quit work, 2, this mould comprises the comparatively multiple component such as concave-convex mold, die, punch, its structure is more complicated, annexation between each parts and whole operation principle also more complicated, adds somewhat to out of order probability, and the structure of its complexity causes its follow-up inconvenient maintenance, 3, complicated structure brings inconvenience to the production of this mould and assembling, and the energy consumption produced during use is also comparatively large, adds somewhat to production and use cost,
In sum, in order to solve the technical problem that above-mentioned shaped device exists, need to design a kind of conveniently stripped, structure is simple, production cost is low commutator crotch one-shot forming apparatus.
Summary of the invention
The object of the invention is the problems referred to above existed for prior art, propose a kind of conveniently stripped, structure is simple, production cost is low commutator crotch one-shot forming apparatus.
Object of the present invention realizes by following technical proposal: a kind of commutator crotch one-shot forming apparatus, comprise mount pad, bending sleeve and bending disk, mount pad upper end is provided with the installation shaft for fixing commutator, mounting platform is formed between described installation shaft and mount pad, the first male-tapered face is provided with between described mounting platform and mount pad outer surface, described commutator has the kink be against on this first male-tapered face, described bending jacket casing to be located on mount pad and can be moved relative to mount pad, described bending disk is sheathed on and bends outside sleeve and can move relative to bending sleeve, described kink is through the first male-tapered face, bending sleeve and bending disk bending and between kink and commutator angle angle be less than 90 °.
In above-mentioned a kind of commutator crotch one-shot forming apparatus, between described bending disk madial wall and upper surface, be provided with inner conical face.
In above-mentioned a kind of commutator crotch one-shot forming apparatus, the upper end of installation shaft is provided with the second male-tapered face.
In above-mentioned a kind of commutator crotch one-shot forming apparatus, mount pad lower end is provided with fixed axis, the first fixed platform is formed between described fixed axis and mount pad, in bending sleeve, be provided with coaxial counter sink and fixing hole and between counter sink and fixing hole, be formed with the second fixed platform, described fixed axis is positioned at fixing hole, and described mount pad is positioned at counter sink and the first fixed platform is against in the second fixed platform.
In above-mentioned a kind of commutator crotch one-shot forming apparatus, also include base, base is provided with the guide pillar of multiple vertical movement, described bending disk evenly offers multiple pilot hole running through bending disk, described bending disk rests on base, and described guide pillar inserts pilot hole and bending disk can move with guide pillar.
In above-mentioned a kind of commutator crotch one-shot forming apparatus, the bottom radial direction that guide pillar upper end is provided with is provided with back shaft, the first support platform is provided with between described back shaft and guide pillar, bending lower disk surface offers multiple second counter sink corresponding with pilot hole and is formed with the second support platform, and described back shaft is positioned at the second counter sink and the first support platform is against in the second support platform.
Compared with prior art, the present invention has following beneficial effect:
1, this shaped device passes through mount pad, kink vertical on commutator is bent into the crotch of predetermined angular by bending sleeve and bending disk gradually, main the first male-tapered face leaning on kink and mount pad of angle change during kink bending, bend the end of sleeve and bend the end contact of disk and produce caused by deformation, in whole bending process, only have kink madial wall face successively with mount pad, bending sleeve and bending disk contact, after the complete bending of kink, commutator easily takes off from this shaped device and can not impact commutator normal process, thus solve the easy nipped problem of commutator kink,
2, this shaped device just can be realized the basic bending work of commutator kink by mount pad, bending sleeve and bending disk three parts, whole shaped device structure is simpler, easy accessibility, make the annexation between each parts, whole operation principle also quite simple, by designing cleverly, realizing identical object simultaneously, structure obtaining largest optimization, and decreases the occurrence probability of fault to a certain extent;
3, under the prerequisite be optimized in structure, this device input cost when producing reduces to some extent, and energy consumption required during use also reduces greatly, and use cost performance higher, commutator shaping efficiency also increases to some extent.
Accompanying drawing explanation
Below by accompanying drawing, the present invention is described in further detail:
Fig. 1 is commutator and scheme of installation of the present invention.
Fig. 2 is the perspective view of a preferred embodiment of the present invention.
Fig. 3 is the cross-sectional view of a preferred embodiment of the present invention.
Fig. 4 is the stereogram of the mount pad in a preferred embodiment of the present invention.
Fig. 5 is the stereogram bending disk in a preferred embodiment of the present invention.
Fig. 6 is the scheme of installation bending sleeve and base in a preferred embodiment of the present invention.
In figure, 100, mount pad; 110, installation shaft; 111, the second male-tapered face; 120, mounting platform; 121, the first male-tapered face; 130, fixed axis; 140, the first fixed platform; 200, sleeve is bent; 210, the first counter sink; 211, the second fixed platform; 220, fixing hole; 300, disk is bent; 310, accommodation hole; 320, inner conical face; 330, pilot hole; 340, the second counter sink; 341, the second support platform; 400, commutator; 410, installing hole; 420, kink; 500, base; 510, guide pillar; 511, back shaft; 512, the first support platform.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1 to Figure 3, a kind of commutator crotch one-shot forming apparatus of the present invention, comprises mount pad 100, bending sleeve 200 and bending disk 300.
As shown in Figures 2 to 4, mount pad 100 upper end is provided with the installation shaft 110 for fixing commutator 400, this installation shaft 110 is coaxial and diameter is less than mount pad 100 diameter with mount pad 100, there is in the middle part of commutator 400 installing hole 410, commutator 400 is installed in installation shaft 110 by this installing hole 410, mounting platform 120 is formed between installation shaft 110 and mount pad 100, the first male-tapered face 121 is provided with between mounting platform 120 and mount pad 100 outer surface, the bottom of commutator 400 has bent kink 420 and kink 420 is against on this first male-tapered face 121, described bending sleeve 200 to be sheathed on mount pad 100 and can to move relative to mount pad 100, the accommodation hole 310 holding bending sleeve 200 is offered in the middle part of bending disk 300, bending disk 300 is sheathed on and bends on sleeve 200 and can move relative to bending sleeve 200.
Under initial condition, commutator 400 is fixed in installation shaft 110, first male-tapered face 121 exceeds bending sleeve 200 upper end, bending sleeve 200 upper end exceeds bending disk 300 upper surface, under External Force Acting, this commutator 400 moves down in installation shaft 110, first male-tapered face 121 makes kink 420 produce deformation and outwards open, the angle being greater than 90 ° is formed between kink 420 and commutator 400 outer surface, when bending sleeve 200 and moving and contact with kink 420 madial wall, kink 420 continue bending and with the surperficial shape of commutator 400 angle in 90 °, when bending disk 300 and move and exceeding bending sleeve 200 upper end, kink 420 continues bending and forms with commutator 400 surface the angle being less than 90 °, then crotch is formed.
This shaped device adopts said structure, pass through External Force Acting, make mount pad 100, kink 420 on commutator 400 is bent into the crotch of predetermined angular by bending sleeve 200 and bending disk 300 gradually, angle change when kink 420 bends is main by the first male-tapered face 121 of kink 420 with mount pad 100, bend the end of sleeve 200 and bend the end contact of disk 300 and produce caused by deformation, when particularly kink 420 is converted into by the quarter bend of 90 ° the acute angle being less than 90 °, in the relatively-stationary situation of commutator 400, it is by the dislocation of bending disk 300 with bending sleeve 200, kink 420 is acutangulated by right-angle bending, and then make kink 420 be bent to required angle, in whole bending process, only have kink 420 madial wall face successively with mount pad 100, bending sleeve 200 contacts with bending disk 300, after the complete bending of kink 420, commutator 400 easily takes off from this shaped device and can not impact commutator 400 normal process, thus solve the easy nipped problem of commutator 400 kink 420.
And in prior art, the kink 420 of commutator 400 is acutangulating in process by right-angle bending, kink 420 clamp by upper and lower two moulds, by the power that upper/lower die is relative, the kink 420 of commutator 400 is bent, owing to producing frictional force between the madial wall of upper/lower die and kink 420 and lateral wall two faces, thus kink 420 is easily sandwiched between upper/lower die cause upper/lower die to be separated, or make kink 420 clamp counterdie, commutator 400 is finally caused to be difficult to take off from mould, make the product stripping time longer, shaping efficiency is lower.
In addition, this shaped device just can realize the basic bending work of commutator 400 kink 420 by mount pad 100, bending sleeve 200 and bending disk 300 3 parts, whole shaped device structure is simpler, easy accessibility, making the annexation between each parts, whole operation principle also quite simple, by designing cleverly, realizing identical object simultaneously, structure obtains largest optimization, and decreases the occurrence probability of fault to a certain extent.
Meanwhile, under the prerequisite that structure is optimized, this device input cost when producing reduces to some extent, and energy consumption required during use also reduces greatly, and use cost performance higher, shaping efficiency also increases to some extent.
As shown in Fig. 3, Fig. 5, between bending disk 300 madial wall and upper surface, be provided with inner conical face 320, the angle in this inner conical face 320 can set according to the angle between commutator 400 kink 420 and commutator 400.
Bending disk 300 is set on bending sleeve 200, close together between itself and bending sleeve 200, kink 420 is shorter with the accommodation hole 310 EDGE CONTACT distance of bending disk 300, the less resistance causing bending disk 300 to move up in process of moment is larger, the kink 420 of right angle condition is not easily made to bend, and inner conical face 320 is offered on bending disk 300, and the overall diameter of internal tapered hole is greater than the diameter of accommodation hole 310, make kink 420 and EDGE CONTACT that is direct and inner conical face 320, distance when kink 420 contacts with bending disk 300 is larger, moment is larger, resistance when bending disk 300 moves, kink 420 is bending easier, simultaneously, this inner conical face 320 can make kink 420 be bent into the angle identical with its angle, kink 420 is conveniently made to bend to required angle.
As shown in Figures 2 to 4, be convenient for changing to make commutator 400, the second male-tapered face 111 is provided with in the upper end of installation shaft 110, the setting in the second male-tapered face 111, facilitates commutator 400 better to locate when mounted, makes it sooner, more easily be enclosed within installation shaft 110, simultaneously, the the second male-tapered face 111 tilted, decreasing the contact area between installation shaft 110 outer surface and commutator 400 installing hole 410 madial wall, making commutator 400 more laborsaving when taking off.
Further, mount pad 100 lower end is provided with fixed axis 130, the first fixed platform 140 is formed between described fixed axis 130 and mount pad 100, in bending sleeve 200, be provided with the first coaxial counter sink 210 and fixing hole 220 and be formed with the second fixed platform 211 between the first counter sink 210 and fixing hole 220, described fixed axis 130 is positioned at fixing hole 220, and described mount pad 100 is positioned at the first counter sink 210 and the first fixed platform 140 is against in the second fixed platform 211.
Owing to bending the finite thickness of sleeve 200, kink 420 can only bend in 90 ° by it, must stop mobile when it moves to and maintains an equal level with mounting platform 120, and when the first fixed platform 140 contacts with the second fixed platform 211, bending sleeve 200 just maintains an equal level with mounting platform 120, and mount pad 100 entirety rests in the second fixed platform 211, too increase the steadiness of mount pad 100, precision when kink 420 is bent is higher.
Bending sleeve 200 and the needs of mount pad 100 because of relative motion, therefore there is certain interval between bending sleeve 200 and mount pad 100, bending sleeve 200 is easily rocked in moving process, and fixed axis 130 is set bottom mount pad 100, in bending sleeve 200, offer fixing hole 220 and make fixed axis 130 mobile in fixing hole 220, add mount pad 100 and bending sleeve 200 connecting length in the axial direction, more stable when bending sleeve 200 is moved, thus add precision when kink 420 bends.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 6, this device also includes base 500, base 500 being evenly provided with three can the guide pillar 510 of vertical movement, described bending disk 300 evenly offers the pilot hole 330 that three run through bending disk 300, described bending disk 300 rests on base 500, and described guide pillar 510 inserts pilot hole 330 and bending disk 300 can move with guide pillar 510.
Mount pad 100, bending sleeve 200, bending disk 300 to be all positioned on base 500 and on base 500, to carry out commutator 400 brake forming, stability is increased greatly, bending disk 300 is led spacing through three and moves up and down on guide pillar 510, considerably increase the stationarity of bending disk 300, make bending disk 300 produce displacement and affect the bending precision of kink 420 when preventing kink 420 from bending, ensure that the bending quality of commutator 400.
Further, bottom guide pillar 510, radial direction is provided with back shaft 511, the first support platform 512 is provided with between described back shaft 511 and guide pillar 510, bending disk 300 lower surface offers three second counter sinks 340 corresponding with pilot hole 330 and is formed with the second support platform 341, and described back shaft 511 is positioned at the second counter sink 340 and the first support platform 512 is against in the second support platform 341.
As the power source of bending disk 300, back shaft 511 can not only make bending disk 300 move up and down, and this axial step formula coordinates the connectivity problem also solving bending disk 300 and guide pillar 510, make bending disk 300 without the need to being fixedly connected with guide pillar 510, the dismounting of convenient bending disk 300 and base 500, meanwhile, also further increase stability when bending disk 300 moves up and down, prevent it from rocking and affecting precision when commutator 400 bends.
The present invention in an initial condition, mount pad 100 is positioned at the first counter sink 210 of bending sleeve 200, first male-tapered face 121 exceeds bending sleeve 200 upper end, bending sleeve 200 is positioned at the accommodation hole 310 of bending disk 300 and bending sleeve 200 exceeds bending disk 300 upper surface, commutator 400 is fixed in the installation shaft 110 of mount pad 100 by installing hole 410, and the kink 420 of commutator 400 to be against on the first male-tapered face 121 and to maintain an equal level mutually with commutator 400 outer surface.
Under external force, commutator 400 moves down, under the barrier effect in the first male-tapered face 121, kink 420 is bent outwardly also and is formed between commutator 400 outer surface and is greater than 90 ° and the angle being less than 180 °, is against on mounting platform 120 bottom commutator 400.
Under commutator 400 fixing situation, bending sleeve 200 moves up and its upper end is against on kink 420 madial wall, when bend sleeve 200 move to maintain an equal level with mounting platform 120 time, kink 420 is bent in 90 ° under the effect of bending sleeve 200, between itself and commutator 400 outer surface in vertical state, now, the first fixed platform 140 of mount pad 100 is against in the second fixed platform 211 of bending sleeve 200.
Bending disk 300 moves up and bends disk 300 upper surface and exceeds bending sleeve 200 upper end, bending disk 300 forms difference of height with bending sleeve 200, under the barrier effect of commutator 400, bending and the madial wall of kink 420 outwards overturns and is attached on the inner conical face 320 of bending disk 300, and kink 420 is bent into the angle identical with inner conical face 320 by 90 ° and crotch needed for being formed.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (6)
1. a commutator crotch one-shot forming apparatus, comprise mount pad, bending sleeve and bending disk, it is characterized in that: mount pad upper end is provided with the installation shaft for fixing commutator, mounting platform is formed between described installation shaft and mount pad, the first male-tapered face is provided with between described mounting platform and mount pad outer surface, described commutator has the kink be against on this first male-tapered face, described bending jacket casing to be located on mount pad and can be moved relative to mount pad, described bending disk is sheathed on and bends outside sleeve and can move relative to bending sleeve, described kink is through the first male-tapered face, bending sleeve and bending disk bending and between kink and commutator angle angle be less than 90 °.
2. a kind of commutator crotch one-shot forming apparatus according to claim 1, is characterized in that: be provided with inner conical face between described bending disk madial wall and upper surface.
3. a kind of commutator crotch one-shot forming apparatus according to claim 1, is characterized in that: the upper end of installation shaft is provided with the second male-tapered face.
4. a kind of commutator crotch one-shot forming apparatus according to claim 1 or 2 or 3, it is characterized in that: mount pad lower end is provided with fixed axis, the first fixed platform is formed between described fixed axis and mount pad, in bending sleeve, be provided with coaxial counter sink and fixing hole and between counter sink and fixing hole, be formed with the second fixed platform, described fixed axis is positioned at fixing hole, and described mount pad is positioned at counter sink and the first fixed platform is against in the second fixed platform.
5. a kind of commutator crotch one-shot forming apparatus according to claim 1, it is characterized in that: also include base, base is provided with the guide pillar of multiple vertical movement, described bending disk evenly offers multiple pilot hole running through bending disk, described bending disk rests on base, and described guide pillar inserts pilot hole and bending disk can move with guide pillar.
6. a kind of commutator crotch one-shot forming apparatus according to claim 5, it is characterized in that: bottom guide pillar, radial direction is provided with back shaft, the first support platform is provided with between described back shaft and guide pillar, bending lower disk surface offers multiple second counter sink corresponding with pilot hole and is formed with the second support platform, and described back shaft is positioned at the second counter sink and the first support platform is against in the second support platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706497.9A CN104550377B (en) | 2014-11-28 | 2014-11-28 | One-step forming device of reverser bent hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706497.9A CN104550377B (en) | 2014-11-28 | 2014-11-28 | One-step forming device of reverser bent hook |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104550377A true CN104550377A (en) | 2015-04-29 |
| CN104550377B CN104550377B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410706497.9A Active CN104550377B (en) | 2014-11-28 | 2014-11-28 | One-step forming device of reverser bent hook |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217109A (en) * | 2022-08-11 | 2022-10-21 | 中国建筑第八工程局有限公司 | Pile foundation reinforcement cage positioning equipment and construction method thereof |
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|---|---|---|---|---|
| JPS56166744A (en) * | 1980-05-23 | 1981-12-22 | Automob Antipollut & Saf Res Center | Manufacture of commutator for motor |
| JPS5858849A (en) * | 1981-09-30 | 1983-04-07 | Nippon Radiator Co Ltd | Commutator for flat motor and manufacture thereof |
| CN201374491Y (en) * | 2009-03-26 | 2009-12-30 | 安固集团有限公司 | One-step molding mould of diverter hook |
| CN201371185Y (en) * | 2009-01-16 | 2009-12-30 | 天津市大港汽车配件弹簧厂 | Automatic forming machine for stabilizer bar |
| CN201975674U (en) * | 2010-12-28 | 2011-09-14 | 安固集团有限公司 | Automatic forming machine of hook of commutator |
| CN202444171U (en) * | 2012-03-06 | 2012-09-19 | 浙江科固电器有限公司 | One-step molding mould for commutator hook |
| CN103904517A (en) * | 2014-03-27 | 2014-07-02 | 浙江松普换向器有限公司 | Hook-type commutator product, technology and mould |
-
2014
- 2014-11-28 CN CN201410706497.9A patent/CN104550377B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56166744A (en) * | 1980-05-23 | 1981-12-22 | Automob Antipollut & Saf Res Center | Manufacture of commutator for motor |
| JPS5858849A (en) * | 1981-09-30 | 1983-04-07 | Nippon Radiator Co Ltd | Commutator for flat motor and manufacture thereof |
| CN201371185Y (en) * | 2009-01-16 | 2009-12-30 | 天津市大港汽车配件弹簧厂 | Automatic forming machine for stabilizer bar |
| CN201374491Y (en) * | 2009-03-26 | 2009-12-30 | 安固集团有限公司 | One-step molding mould of diverter hook |
| CN201975674U (en) * | 2010-12-28 | 2011-09-14 | 安固集团有限公司 | Automatic forming machine of hook of commutator |
| CN202444171U (en) * | 2012-03-06 | 2012-09-19 | 浙江科固电器有限公司 | One-step molding mould for commutator hook |
| CN103904517A (en) * | 2014-03-27 | 2014-07-02 | 浙江松普换向器有限公司 | Hook-type commutator product, technology and mould |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217109A (en) * | 2022-08-11 | 2022-10-21 | 中国建筑第八工程局有限公司 | Pile foundation reinforcement cage positioning equipment and construction method thereof |
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| CN104550377B (en) | 2017-02-01 |
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