CN204307966U - A kind of mould for the manufacture of automobile generator claw pole - Google Patents
A kind of mould for the manufacture of automobile generator claw pole Download PDFInfo
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- CN204307966U CN204307966U CN201420757655.9U CN201420757655U CN204307966U CN 204307966 U CN204307966 U CN 204307966U CN 201420757655 U CN201420757655 U CN 201420757655U CN 204307966 U CN204307966 U CN 204307966U
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- material returned
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Abstract
The utility model provides a kind of mould for the manufacture of automobile generator claw pole, belongs to die casting technical field.It solve the problems such as the existing pawl pole accuracy of manufacture is low, working (machining) efficiency is low.This mould for the manufacture of automobile generator claw pole comprises upper die and lower die, inner after upper die and lower die fit have the cavity with the pawl pole mating shapes of band magnetic muscle, yoke, the center of counterdie vertically has the lower through-hole run through, be provided with material returned traveller in lower through-hole, the upper surface of material returned traveller and the bottom surface of yoke match.This mould for the manufacture of automobile generator claw pole has makes the uniform wall thickness of obtained pawl pole magnetic muscle, uniformity good, working (machining) efficiency advantages of higher.
Description
Technical field
The utility model belongs to die casting technical field, relates to a kind of mould for the manufacture of automobile generator claw pole.
Background technology
Along with the development of society, the raising of people's living standard, automobile becomes the main walking-replacing tool of people's trip gradually, the requirement of people to car comfort is also more and more higher, existing automobile generally adopts the electric elements such as air-conditioning, automatically controlled vehicle window, electronic barbed chair, power consumption sharply rises, also more and more higher to the requirement of generator power, for this reason, people utility model claw pole electric generator, mosaic magnet between pawl pole before and after generator, greatly increases the magnetic property of pawl pole, thus greatly increases power output and the efficiency of generator.
Existing generator claw pole, such as Chinese patent literature data discloses the processing technology [application number: 201210145579.1 of hybrid excitation generator pawl pole; Application publication number: CN103386586A], this generator claw pole is formed by following steps manufacture, a, hot finish forge or warm forging manufacture technics pawl pole blank; B, magnetic annealing; C, cold-finish; D, brill endoporus; E, right boring endoporus; F, car yoke end face; The magnet standing groove of pawl two sides is erected in g, milling.
The generator claw pole of this kind of structure comprises base plate, the edge of base plate is evenly equipped with six or eight perpendicular pawls, the middle of base plate is also provided with yoke, base plate and yoke are integral structures, perpendicular pawl and yoke are positioned at the same side of base plate, mill out by milling cutter to the magnet standing groove that magnet positions, namely lacking corresponding mould pawl pole blank is shaping processes afterwards to magnet standing groove, and the pawl pole of this kind of structure completes a processing and needs to carry out to cut for 12 times or 16 times magnet standing grooves, process a pawl pole and need the longer time, waste time and energy, working (machining) efficiency is low, and in process, be difficult to the uniform wall thickness ensureing magnet standing groove both sides magnetic muscle, uniformity is poor, and namely magnet is placed on after in this magnet standing groove, when rotation, there is the problem loosened in magnet, poor stability, claw pole electric generator generating efficiency is low.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of mould for the manufacture of automobile generator claw pole, uses this mould can extrude magnetic muscle, and solve and how to make existing magnetic muscle uniform wall thickness, uniformity good, working (machining) efficiency is high.
The purpose of this utility model realizes by following technical proposal: a kind of mould for the manufacture of automobile generator claw pole, comprise upper die and lower die, it is characterized in that, inner after described upper die and lower die fit have the cavity with the pawl pole mating shapes of band magnetic muscle, yoke, the center of described counterdie vertically has the lower through-hole run through, be provided with material returned traveller in described lower through-hole, the described upper surface of material returned traveller and the bottom surface of yoke match.
After pawl pole blank is made, blank is placed in cavity, shape, the area of the shape of the upper surface of material returned traveller, area and yoke bottom surface are substantially identical, can make according to actual needs to there is between material returned traveller and yoke certain gap or the upper surface of material returned traveller and the bottom surface of yoke are fitted, force value when certain gap can reduce extruding is set, make this mould extrude magnetic muscle laborsaving, the dimensional accuracy that pawl pole is processed of fitting in the bottom surface of the later stage upper surface and yoke that arrange material returned traveller of processing is high; By extrusion die, make the metal flow in blank, extrude magnetic muscle, make magnetic muscle precisive shaped, make the uniform wall thickness of magnetic muscle, uniformity good by Making mold magnetic muscle, working (machining) efficiency is high.
A kind of for the manufacture of in the mould of automobile generator claw pole, the top of described counterdie has gathering sill above-mentioned, and the bottom of described gathering sill and patrix matches.Guide effect is played in the movement of gathering sill to patrix, and make this mould when processing magnetic muscle, the position of patrix can not offset, and namely the shape of cavity can not be out of shape, and the pawl pole processed, the dimensional accuracy of magnetic muscle are high, and qualification rate is high.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, the upper edge place of described lower through-hole has annular table terrace.The upper surface area of annular table terrace is little, the area of material returned traveller upper surface adds that the upper surface area of annular table terrace is identical with the area of yoke bottom surface, add man-hour, edge, yoke bottom surface is resisted against on annular table terrace, annular table terrace has yoke is played to the effect of locating, supporting the man-hour that adds in gap between material returned traveller and yoke, ensure that yoke can not excessively move down, improve machining accuracy.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, described cavity comprises the shaping place of magnetic muscle and the shaping place of perpendicular pawl, the described shaping place of magnetic muscle is cambered surface away from the lateral surface of yoke, and be the side of same cylinder away from the lateral surface of yoke with the shaping place of perpendicular pawl, the described shaping place of magnetic muscle and the disjunct end face in the shaping place of perpendicular pawl are plane, the end face at the described shaping place of magnetic muscle and the shaping place of magnetic muscle away from yoke lateral surface between rounding, end face and the shaping place of the magnetic muscle rounding between the medial surface of yoke at the described shaping place of magnetic muscle.The shaping place of magnetic muscle of this kind of shape enables the metal in blank flow in the shaping place of magnetic muscle more smoothly, metal is made to be crowded with shaping places of magnetic muscle, be mainly used in making magnetic hypertrophy of tendon and muscle shaping, use the shaping place of magnetic muscle of this kind of shape, the pressure needed during extruding is larger, during extruding, between material returned traveller and yoke, vacate certain gap, to reduce required pressure.
As another kind of situation, above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, described cavity comprises the shaping place of magnetic muscle and the shaping place of perpendicular pawl, the described shaping place of magnetic muscle is plane away from the lateral surface of yoke, the described shaping place of perpendicular pawl is the side of cylinder away from the lateral surface of yoke, described plane is the side tangent plane vertically of cylinder, and the described shaping place of magnetic muscle and the disjunct end face in the shaping place of perpendicular pawl are cambered surface.The shaping place of magnetic muscle of this kind of shape is for magnetic muscle precisive shaped, carries out fine finishining, during fine finishining to slightly shaping magnetic muscle, the variable quantity of magnetic muscle, pawl pole is less, using lower pressure, in order to ensure machining accuracy, needing the upper surface of material returned traveller to be resisted against on the bottom surface of yoke.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, the below of described counterdie has guide pad, described guide pad center vertically has the pilot hole run through, the aperture of described pilot hole is greater than the aperture of lower through-hole, described material returned traveller comprises the material returned portion on top and the guide part of bottom, described material returned portion is connected by the connecting portion in frustum mutually with guide part, and the external diameter of described guide part is greater than the external diameter in material returned portion, and described guide part is arranged in pilot hole.This kind of structure, material returned traveller can not be gone out from the top of lower through-hole, and guide pad, pilot hole make material returned traveller can not block when mobile, can not tilt, and ensures that the upper surface of material returned traveller matches with the bottom surface of yoke all the time, improves machining accuracy.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, the below of described guide pad is provided with pressure block, described pressure block center vertically has the installing hole run through, lower material returned bar is provided with in described installing hole, the top of described lower material returned bar is resisted against the bottom of material returned traveller, and the cross-sectional area of described lower material returned bar is less than the cross-sectional area of material returned traveller.Owing to being extrusion process, can be embedded in counterdie after pawl pole machines, need to use larger power the pawl pole after machining could to be ejected, use the material returned bar of this kind of structure, the power of needs can be reduced, make rapid operation.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, described counterdie place has counterdie female connector seat, described counterdie is located on counterdie female connector seat, and is provided with positioning key one between counterdie and counterdie female connector seat, and described guide pad and pressure block are all arranged in counterdie female connector seat.The effect of location is played in the installation of positioning key a pair counterdie, makes counterdie and patrix just to setting, ensures machining accuracy when processing pawl pole, magnetic muscle.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, the madial wall of described counterdie female connector seat and be equipped with positioning sleeve between pressure block and the lateral wall of guide pad.Positioning sleeve plays the effect of location to pressure block and guide pad, and the position of pressure block, guide pad can not be offset, and namely the position of material returned traveller and lower material returned bar can not offset, and make material returned traveller and lower material returned bar move smooth and easy, material returned efficiency is high.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, the center of described patrix vertically has the upper through hole run through, and is provided with material returned bar in described through hole.Carry out blanking to the pawl pole be bonded in patrix, blanking is convenient.
Above-mentioned a kind of for the manufacture of in the mould of automobile generator claw pole, the top of described patrix has patrix female connector seat, and described patrix is connected mutually by die sleeve nut and patrix female connector seat, is provided with positioning key two between described patrix and patrix female connector seat.The effect of location is played in the installation of positioning key two pairs of patrixes, makes counterdie and patrix just to setting, ensures machining accuracy when processing pawl pole, magnetic muscle.
Compared with prior art, the mould for the manufacture of automobile generator claw pole that the utility model provides has the following advantages:
1, the counterdie of this mould has two covers, a set of for the processing of magnetic hypertrophy of tendon and muscle, a set of for the fine finishining of magnetic muscle, by once or the cold extrusion of twice process the magnetic muscle of pawl pole, working (machining) efficiency is high, magnetic muscle uniform wall thickness, good product consistency.
In the through hole of 2, this lower mould, material returned traveller is set, man-hour is added at magnetic hypertrophy of tendon and muscle, make to vacate certain gap between material returned traveller and yoke, pressure required when extruding to reduce, when the fine finishining of magnetic muscle, material returned traveller and yoke are fitted, with improve pawl pole, magnetic muscle shaping time dimensional accuracy, the pressure making this mould required when processing magnetic muscle is little, and the magnetic muscle precision processed is high.
3, this is less than the cross-sectional area of material returned traveller for the manufacture of the cross-sectional area of material returned bar under the mould of automobile generator claw pole, by lower material returned bar rising jack-up material returned traveller, thus jack-up pawl pole, make operator's blanking laborsaving.
Accompanying drawing explanation
Fig. 1 is sectional view when having gap between this Die Embodiment one material returned traveller for the manufacture of automobile generator claw pole and yoke.
The sectional view of Fig. 2 when to be this fit for the manufacture of Die Embodiment two material returned traveller of automobile generator claw pole and yoke.
Fig. 3 is originally for the manufacture of the partial sectional view at the shaping place of counterdie magnetic muscle of the Die Embodiment one roughing magnetic muscle of automobile generator claw pole.
Fig. 4 is originally for the manufacture of the partial sectional view at the shaping place of counterdie magnetic muscle of the Die Embodiment two fine finishining magnetic muscle of automobile generator claw pole.
Fig. 5 is the enlarged drawing in Figure 1A region.
Fig. 6 is the enlarged drawing in Fig. 2 B region.
In figure, 1, patrix; 2, counterdie; 3, pawl pole; 31, yoke; 4, cavity; 41, the shaping place of magnetic muscle; 42, the perpendicular shaping place of pawl; 5, lower through-hole; 6, material returned traveller; 61, material returned portion; 62, guide part; 63, connecting portion; 7, gathering sill; 8, annular table terrace; 9, guide pad; 10, pilot hole; 11, pressure block; 12, installing hole; 13, lower material returned bar; 14, counterdie female connector seat; 15, positioning key one; 16, positioning sleeve; 17, upper through hole; 18, upper material returned bar; 19, patrix female connector seat; 20, die sleeve nut; 21, positioning key two.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, this comprises patrix 1 and counterdie 2 for the manufacture of the mould of automobile generator claw pole.
Inner after patrix 1 and counterdie 2 fit have the cavity 4 with pawl pole 3 mating shapes of band magnetic muscle, yoke.The center of counterdie 2 vertically has the lower through-hole 5 run through, material returned traveller 6 is provided with in lower through-hole 5, material returned traveller 6 comprises the material returned portion 61 on top and the guide part 62 of bottom, material returned portion 61 is connected by the connecting portion 63 in frustum mutually with guide part 62, and the external diameter of guide part 62 is greater than the external diameter in material returned portion 61.As shown in Figure 5, the upper edge place of lower through-hole 5 has annular table terrace 8, the upper surface in material returned traveller 6 material returned portion 61 adds the upper surface of annular table terrace 8, with the shape of the bottom surface of yoke 31, in the same size, pawl pole 3 is placed into after in cavity 4, and the edge of the bottom surface of yoke 31 is resisted against on annular table terrace 8.Counterdie 2 place has counterdie female connector seat 14, and counterdie 2 is located on counterdie female connector seat 14, and is provided with positioning key 1 between counterdie 2 and counterdie female connector seat 14.Guide pad 9 and pressure block 11 is also provided with in counterdie female connector seat 14, positioning sleeve 16 is equipped with between the madial wall of counterdie female connector seat 14 and the lateral wall of pressure block 11 and guide pad 9, the quantity of the positioning sleeve 16 in the present embodiment is three pieces, in actual production, the quantity of positioning sleeve 16 can be two pieces or four pieces.Guide pad 9 is positioned at the below of counterdie 2, guide pad 9 center vertically has the pilot hole 10 run through, material returned traveller 6 guide part 62 is arranged in pilot hole 10, the aperture of pilot hole 10 is greater than the aperture of lower through-hole 5, lower through-hole 5 and material returned portion 61 matched in clearance, guide part 62 and pilot hole 10 matched in clearance.The below of guide pad 9 is provided with pressure block 11, pressure block 11 center vertically has the installing hole 12 run through, the longitudinal center line of installing hole 12, pilot hole 10 and lower through-hole 5 is located along the same line, lower material returned bar 13 is provided with in installing hole 12, the top of lower material returned bar 13 is resisted against the bottom of material returned traveller 6, and the cross-sectional area of lower material returned bar 13 is less than the cross-sectional area of material returned traveller 6.In the present embodiment, when the bottom of material returned traveller 6 guide part 62 is resisted against the upper surface of pressure block 11, upper surface and the annular table terrace 8 of material returned traveller 6 have the gap of 2mm at vertical direction, and in actual production, can arrange this gap is 1mm or 3mm.
The top of counterdie 2 has gathering sill 7, and gathering sill 7 matches with the bottom of patrix 1.The center of patrix 1 vertically has the upper through hole 17 run through, and is provided with material returned bar 18 in through hole.The top of patrix 1 has patrix female connector seat 19, and patrix 1 is connected mutually by die sleeve nut 20 and patrix female connector seat 19, is provided with positioning key 2 21 between patrix 1 and patrix female connector seat 19.
As shown in Figure 3, cavity 4 comprises the shaping place of magnetic muscle 41 and the shaping place 42 of perpendicular pawl, the shaping place 41 of magnetic muscle is cambered surface away from the lateral surface of yoke, and be the side of same cylinder away from the lateral surface of yoke with the shaping place of perpendicular pawl 42, the shaping place of magnetic muscle 41 and the disjunct end face in the shaping place of perpendicular pawl 42 are plane, and the end face at the shaping place of magnetic muscle 41 and the shaping place 41 of magnetic muscle are away from equal rounding between the lateral surface of yoke and the medial surface of close yoke.When using cavity 4 to be the mould of this kind of structure, be mainly used in roughing magnetic muscle, make magnetic hypertrophy of tendon and muscle shaping, add man-hour, pawl pole 3 blank is placed in cavity 4, the gap of 2mm is set between material returned slide bar and yoke 31, by hydraulic press extrusion die, make magnetic hypertrophy of tendon and muscle shaping.When extruding, have small gap between patrix 1 and counterdie 2, this gap is flowed out for unnecessary metal, to reduce pressure during hydraulic press extruding.During the material returned, by lower material returned bar 13 jack-up material returned traveller 6, thus jack-up pawl pole 3, pawl pole 3 is deviate from from mould.
Embodiment two
As shown in Fig. 2, Fig. 4, Fig. 6, in the present embodiment, the structure of embodiment one is substantially identical with principle, different places is, in the present embodiment, the shaping place 41 of magnetic muscle is plane away from the lateral surface of yoke, the perpendicular shaping place 42 of pawl is the side of cylinder away from the lateral surface of yoke, and plane is the side tangent plane vertically of cylinder, and the shaping place of magnetic muscle 41 and the disjunct end face in the shaping place of perpendicular pawl 42 are cambered surface.When using cavity 4 to be the mould of this kind of structure, be mainly used in fine finishining magnetic muscle, make magnetic muscle precisive shaped, add man-hour, the pawl pole 3 of carrying out roughing magnetic muscle is placed in cavity 4, the upper surface of material returned slide bar is fitted on the bottom surface of yoke 31, by hydraulic press extrusion die, makes magnetic muscle precisive shaped.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the term such as patrix 1, counterdie 2, pawl pole 3, yoke 31, cavity 4, the shaping place of magnetic muscle 41, the perpendicular shaping place of pawl 42, lower through-hole 5, material returned traveller 6, material returned portion 61, guide part 62, connecting portion 63, gathering sill 7, annular table terrace 8, guide pad 9, pilot hole 10, pressure block 11, installing hole 12, lower material returned bar 13, counterdie female connector seat 14, positioning key 1, positioning sleeve 16, upper through hole 17, upper material returned bar 18, patrix female connector seat 19, die sleeve nut 20, positioning key 2 21 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (10)
1. the mould for the manufacture of automobile generator claw pole, comprise patrix (1) and counterdie (2), it is characterized in that, inner after described patrix (1) and counterdie (2) fit have the cavity (4) with pawl pole (3) mating shapes of band magnetic muscle, yoke, the center of described counterdie (2) vertically has the lower through-hole (5) run through, be provided with material returned traveller (6) in described lower through-hole (5), the upper surface of described material returned traveller (6) and the bottom surface of yoke (31) match.
2. a kind of mould for the manufacture of automobile generator claw pole according to claim 1, it is characterized in that, the top of described counterdie (2) has gathering sill (7), and described gathering sill (7) matches with the bottom of patrix (1).
3. a kind of mould for the manufacture of automobile generator claw pole according to claim 1, is characterized in that, the upper edge place of described lower through-hole (5) has annular table terrace (8).
4. a kind of mould for the manufacture of automobile generator claw pole according to claim 1, it is characterized in that, described cavity (4) comprises the shaping place of magnetic muscle (41) and the shaping place of perpendicular pawl (42), the described shaping place of magnetic muscle (41) is cambered surface away from the lateral surface of yoke, and be the side of same cylinder away from the lateral surface of yoke with the shaping place of perpendicular pawl (42), the described shaping place of magnetic muscle (41) and the shaping place of perpendicular pawl (42) disjunct end face are plane, the end face of the described shaping place of magnetic muscle (41) and the shaping place of magnetic muscle (41) away from yoke lateral surface between rounding, the end face of the described shaping place of magnetic muscle (41) and the shaping place of magnetic muscle (41) rounding between the medial surface of yoke.
5. a kind of mould for the manufacture of automobile generator claw pole according to claim 1, it is characterized in that, described cavity (4) comprises the shaping place of magnetic muscle (41) and the shaping place of perpendicular pawl (42), the described shaping place of magnetic muscle (41) is plane away from the lateral surface of yoke, the described shaping place of perpendicular pawl (41) is the side of cylinder away from the lateral surface of yoke, described plane is the side tangent plane vertically of cylinder, and the described shaping place of magnetic muscle (41) and the shaping place of perpendicular pawl (42) disjunct end face are cambered surface.
6. a kind of mould for the manufacture of automobile generator claw pole according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that, the below of described counterdie (2) has guide pad (9), described guide pad (9) center vertically has the pilot hole (10) run through, the aperture of described pilot hole (10) is greater than the aperture of lower through-hole (5), described material returned traveller (6) comprises the material returned portion (61) on top and the guide part (62) of bottom, described material returned portion (61) is connected by the connecting portion (63) in frustum mutually with guide part (62), the external diameter of described guide part (62) is greater than the external diameter of material returned portion (61), described guide part (62) is arranged in pilot hole (10).
7. a kind of mould for the manufacture of automobile generator claw pole according to claim 6, it is characterized in that, the below of described guide pad (9) is provided with pressure block (11), described pressure block (11) center vertically has the installing hole (12) run through, lower material returned bar (13) is provided with in described installing hole (12), the top of described lower material returned bar (13) is resisted against the bottom of material returned traveller (6), and the cross-sectional area of described lower material returned bar (13) is less than the cross-sectional area of material returned traveller (6).
8. a kind of mould for the manufacture of automobile generator claw pole according to claim 7, it is characterized in that, described counterdie (2) place has counterdie female connector seat (14), described counterdie (2) is located on counterdie female connector seat (14), and being provided with positioning key one (15) between counterdie (2) and counterdie female connector seat (14), described guide pad (9) and pressure block (11) are all arranged in counterdie female connector seat (14).
9. a kind of mould for the manufacture of automobile generator claw pole according to claim 8, it is characterized in that, between the madial wall of described counterdie female connector seat (14) and the lateral wall of pressure block (11) and guide pad (9), be equipped with positioning sleeve (16).
10. a kind of mould for the manufacture of automobile generator claw pole according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that, the center of described patrix (1) vertically has the upper through hole (17) run through, material returned bar (18) is provided with in described through hole, the top of described patrix (1) has patrix female connector seat (19), described patrix (1) is connected mutually by die sleeve nut (20) and patrix female connector seat (19), is provided with positioning key two (21) between described patrix (1) and patrix female connector seat (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757655.9U CN204307966U (en) | 2014-12-04 | 2014-12-04 | A kind of mould for the manufacture of automobile generator claw pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757655.9U CN204307966U (en) | 2014-12-04 | 2014-12-04 | A kind of mould for the manufacture of automobile generator claw pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204307966U true CN204307966U (en) | 2015-05-06 |
Family
ID=53130298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757655.9U Withdrawn - After Issue CN204307966U (en) | 2014-12-04 | 2014-12-04 | A kind of mould for the manufacture of automobile generator claw pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204307966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525605A (en) * | 2014-12-04 | 2015-04-22 | 汪超 | Die for making automobile alternator claw-pole |
-
2014
- 2014-12-04 CN CN201420757655.9U patent/CN204307966U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525605A (en) * | 2014-12-04 | 2015-04-22 | 汪超 | Die for making automobile alternator claw-pole |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20160928 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |