CN204820116U - Plastic compression mould of commutator - Google Patents
Plastic compression mould of commutator Download PDFInfo
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- CN204820116U CN204820116U CN201520579164.4U CN201520579164U CN204820116U CN 204820116 U CN204820116 U CN 204820116U CN 201520579164 U CN201520579164 U CN 201520579164U CN 204820116 U CN204820116 U CN 204820116U
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- plastic compression
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- commutator
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Abstract
The utility model discloses a plastic compression mould of commutator, this plastic compression mould includes: positioning die, positioning die is last to be provided with a plurality of positioning unit, every positioning unit and first positioning tooth of along location protruding circumferencial direction distributing protruding including the location that is the cylinder, the mould subassembly includes: go up mould, well mould and lower mould, well mould includes a plurality of compression moulding units, and every compression moulding unit includes: the transversal annular step face of personally submitting circular shape plastic compression inner chamber and setting up intracavity in the plastic compression, it has the second positioning tooth to distribute along its circumferencial direction on annular step face. The utility model relates to a plastic compression mould of commutator, this mould structure is simple, can effectively carry out the compression moulding to the commutator, and the piece that prevents to commutate skew improves production efficiency, guarantees product quality.
Description
Technical field
The utility model relates to a kind of compression tool, is specifically related to a kind of compression tool for automobile start/stop machine motor tank commutator.
Background technology
Commutator is the critical piece in motor, it primarily of neck bush, neck bush periphery bakelite main body and be arranged in bakelite main body periphery copper bar commutator segment and separate commutator segment mica sheet composition.Young mobile start-stop motor is owing to requiring the life-span comparatively general-utility car starter height 5-6 times, therefore just higher to the requirement of rotor assembly, the more common starter brush of carbon brush length is also long a lot, the commutator of original employing mica insulation needs to be cut out by reversing groove with blade after dressing up armature, but because milling cutter exists circular arc, therefore the effective length of reversing groove just cannot ensure.
What be supplied to start-stop motor at present is all adopt plastic sheath to carry out commutator segment interval, but the bottom of the rise piece of commutator segment can only be accomplished due to plastic sheath, the upper end of 7 font commutator segments is all in vacant state, in the middle of the process of compression molding, due to the effect by press pressure, commutator segment can swing, and causes calibration between commutator segment uneven, affects the processing of motor commutation and later process.
Therefore a kind of structure simple, effectively can ensure that the plastic compression mould of the commutator of final products quality urgently proposes.
Utility model content
In order to solve the problems of the technologies described above, the utility model proposes a kind of plastic compression mould of commutator, this mould structure is simple, effectively can carry out compression moulding to commutator, prevent commutator segment from offseting, enhance productivity, and ensures product quality.
In order to achieve the above object, the technical solution of the utility model is as follows:
A plastic compression mould for commutator, comprising: jig, and described jig is provided with multiple positioning unit, the first positioning tooth that each described positioning unit comprises in cylindrical positioning convex and distributes along described positioning convex circumferencial direction; Die assembly, comprise: patrix, middle mould and counterdie, described middle mould comprises multiple compression moulding unit, each described compression moulding unit comprises: the plastic compression inner chamber of circular in cross-section and the annular table terrace be arranged in described plastic compression inner chamber, described annular table terrace is distributed with the second positioning tooth along its circumferencial direction.
The utility model structure is simple, the first positioning tooth on jig and positioning convex is utilized to position commutator segment and plastic sheath, and during the product behind location is oppositely sent in mould, the second positioning tooth on space between commutator segment and middle mould coincide, thus ensure the effective of later stage plastic compression, effectively prevent commutator segment from offseting, improve the quality of final products.
On the basis of technique scheme, also can do following improvement:
As preferred scheme, described patrix is provided with groove, described inside grooves forms material chamber, be provided with multiple through hole, and the aperture of the charging aperture of described through hole is less than the aperture of the discharging opening of described through hole at the lower surface of described groove.
Adopt above-mentioned preferred scheme, while the stability ensureing discharging, improve the speed of discharging.
As preferred scheme, described through hole comprises the first through-hole section and the second through-hole section successively along feedstock direction, and the aperture of described first through-hole section reduces gradually along described feedstock direction, and the aperture of described second through-hole section increases gradually along described feedstock direction.
Adopt above-mentioned preferred scheme, further can improve the speed of discharging, and ensure the stability of discharging.
As preferred scheme, described counterdie is provided with multiple support column.
Adopt above-mentioned preferred scheme, be convenient to plastic compression.
As preferred scheme, the rectangular in cross-section of described first positioning tooth and/or described second positioning tooth.
Adopt above-mentioned preferred scheme, there is good guide effect, and when jig contacts with middle mould, the second positioning tooth snaps in the space between commutator segment, can carry out good location to commutator segment.
As preferred scheme, be provided with chamfered section at the upper surface of described second positioning tooth.
Adopt above-mentioned preferred scheme, when jig contacts with middle mould, the second positioning tooth snaps in the space between commutator segment, and chamfered section can carry out better guide effect to commutator segment, and can effectively prevent the second positioning tooth from causing scratch to commutator segment.
As preferred scheme, the upper surface of described positioning convex is circumferentially provided with along it conical surface that upper end is little, lower end is large.
Adopt above-mentioned preferred scheme, guide effect is better, and can prevent it from causing scratch to commutator segment.
As preferred scheme, described patrix, described middle mould, described counterdie and one or more mould of described jig are provided with lead.
Adopt above-mentioned preferred scheme, be convenient to it and lead.
As preferred scheme, described patrix, described middle mould, described counterdie and one or more mould of described jig are provided with pilot hole.
Adopt above-mentioned preferred scheme, be convenient to it and lead.
As preferred scheme, the top of described lead is that circular arc is protruding.
Adopt above-mentioned preferred scheme, guide effect is better.
Accompanying drawing explanation
The sectional view of the jig that Fig. 1 provides for the utility model embodiment and middle mould.
The sectional view of the plastic sheath that Fig. 2 provides for the utility model embodiment.
The structural representation of the jig that Fig. 3 provides for the utility model embodiment.
The front view of the positioning unit that Fig. 4 provides for the utility model embodiment.
The sectional view of the positioning unit that Fig. 5 provides for the utility model embodiment.
The structural representation of the die assembly that Fig. 6 provides for the utility model embodiment.
Fig. 7 is A portion enlarged diagram in Fig. 6.
Fig. 8 for the utility model embodiment provide in the front view of mould.
Fig. 9 is B portion enlarged diagram in Fig. 8.
Figure 10 for the utility model embodiment provide in the sectional view of mould.
The front view of the patrix that Figure 11 provides for the utility model embodiment.
Figure 12 for the utility model embodiment provide above half sectional view.
Wherein: mould, 31 compression moulding unit, 32 plastic compression inner chambers, 33 annular table terraces, 34 second positioning tooths, 341 chamfered section, 4 counterdies, 41 support columns, 5 leads, 51 circular arc projections, 6 pilot holes, 7 commutator segments, 8 plastic sheaths in 1 jig, 11 positioning units, 12 positioning convex, 121 conical surfaces, 13 first positioning tooths, 2 patrixes, 21 grooves, 22 through holes, 221 charging apertures, 222 discharging openings, 223 first through-hole section, 224 second through-hole section, 3.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
In order to reach the purpose of this utility model, in a kind of some of them embodiment of plastic compression mould of commutator,
A kind of plastic compression mould of commutator comprises: jig 1 and die assembly.
As in Figure 3-5, jig 1 is provided with multiple positioning unit 11, positioning unit 11 and jig 1 are split-type structural, connected by connector, the first positioning tooth 13 that each positioning unit 11 comprises in cylindrical positioning convex 12 and distributes along positioning convex 12 circumferencial direction, the rectangular in cross-section of the first positioning tooth 13, the angle and direction of the first positioning tooth 13 is identical with the angle and direction of commutator.Circumferentially be provided with along it conical surface 121 that upper end is little, lower end is large at the upper surface of positioning convex 12, the design of the conical surface makes the guide effect of positioning convex 12 better, and when can prevent it from contacting with commutator segment, causes scratch to commutator segment.When being arranged on jig 1 by commutator segment, the first positioning tooth 13 is arranged in the space of commutator segment, and and space between commutator segment coincide.
As shown in fig. 6-7, die assembly comprises: patrix 2, middle mould 3 and counterdie 4;
As depicted in figs. 11-12, patrix 2 is provided with groove 21, groove 21 inside forms material chamber, multiple through hole 22 is provided with at the lower surface of groove 21, and the aperture of the charging aperture 221 of through hole 22 is less than the aperture of the discharging opening 222 of through hole 22, through hole 22 comprises the first through-hole section 223 and the second through-hole section 224 successively along feedstock direction, the aperture of the first through-hole section 223 reduces gradually along feedstock direction, the aperture of the second through-hole section 224 increases gradually along feedstock direction, improves the speed of discharging while the stability ensureing discharging.
As seen in figs. 8-10, middle mould 3 comprises multiple compression moulding unit 31, each compression moulding unit 31 comprises: the plastic compression inner chamber 32 of circular in cross-section and the annular table terrace 33 be arranged in plastic compression inner chamber 32, annular table terrace 33 is distributed with the second positioning tooth 34 along its circumferencial direction, the rectangular in cross-section of the second positioning tooth 34, the angle and direction of the second positioning tooth 34 is identical with the angle and direction of commutator, and compression moulding unit 31 and positioning unit 11 match.Chamfered section 341 is provided with at the upper surface of the second positioning tooth 34.When jig 1 contacts with middle mould 3, the second positioning tooth 34 snaps in the space between commutator segment, and the space between the second positioning tooth 34 and commutator segment coincide, and can carry out good location to commutator segment.And chamfered section 341 can effectively prevent the second positioning tooth from causing scratch to commutator segment.
Counterdie 4 is provided with multiple support column 41, is convenient to plastic compression.
Patrix 2, counterdie 4 and jig 1 are provided with lead 5, and the top of lead 5 is circular arc projection 51.Meanwhile, middle mould 3 and counterdie 4 are provided with pilot hole 6.Lead 5 and pilot hole 6 match, and are convenient to it and lead, make can better fix coupling between each mould.
The utility model is utilized to carry out the plastic compression of commutator.As shown in Figure 1-2, first, be placed in by commutator segment 8 on jig 1, the first positioning tooth 13 snaps in the gap between commutator segment 7, and coincide with it.The inwall being arranged with plastic sheath 8 plastic sheath in the outside of commutator segment 7 is provided with the rib 81 distributed along its circumferencial direction, and rib 81 snaps in the gap between commutator segment 7, and jig 1 pair of commutator segment 7 and plastic sheath 8 position.Then, in oppositely being sent into by positioning unit 11 along the lead 5 on jig 1 by press in mould 3, the second positioning tooth 34 in middle mould 3 snaps in the space between commutator segment 7, is fixed on the positioning commutator segment 7, ensures that commutator segment does not offset.Finally, taken away by jig 1, be pressed in by patrix 2 on middle mould 3, utilize material chamber to start to fill phenolic moulding powder, ensure in the process, commutator segment 7 and plastic sheath 8 can not occur partially to move, and ensure that the product quality of the commutator after final plastic compression is good.
The utility model structure is simple, the first positioning tooth 13 on jig 1 and positioning convex 12 pairs of commutator segments 7 and plastic sheath 8 is utilized to position, compared to traditional artificial location, efficiency is higher, better effects if, and during the product behind location is oppositely sent in mould 3, on space between commutator segment 7 and middle mould 3 second locates 34 teeth coincide, thus ensure the effective of later stage plastic compression, effectively prevent commutator segment 7 from offseting, improve the quality of final products.
Novel preferred embodiment, it should be pointed out that for the person of ordinary skill of the art, and under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. a plastic compression mould for commutator, is characterized in that, comprising:
Jig, described jig is provided with multiple positioning unit, the first positioning tooth that each described positioning unit comprises in cylindrical positioning convex and distributes along described positioning convex circumferencial direction;
Die assembly, comprise: patrix, middle mould and counterdie, described middle mould comprises multiple compression moulding unit, each described compression moulding unit comprises: the plastic compression inner chamber of circular in cross-section and the annular table terrace be arranged in described plastic compression inner chamber, described annular table terrace is distributed with the second positioning tooth along its circumferencial direction.
2. the plastic compression mould of commutator according to claim 1, it is characterized in that, described patrix is provided with groove, described inside grooves forms material chamber, be provided with multiple through hole at the lower surface of described groove, and the aperture of the charging aperture of described through hole is less than the aperture of the discharging opening of described through hole.
3. the plastic compression mould of commutator according to claim 2, it is characterized in that, described through hole comprises the first through-hole section and the second through-hole section successively along feedstock direction, the aperture of described first through-hole section reduces gradually along described feedstock direction, and the aperture of described second through-hole section increases gradually along described feedstock direction.
4. the plastic compression mould of commutator according to claim 1, is characterized in that, described counterdie is provided with multiple support column.
5. the plastic compression mould of commutator according to claim 1, is characterized in that, the rectangular in cross-section of described first positioning tooth and/or described second positioning tooth.
6. the plastic compression mould of the commutator according to any one of claim 1-5, is characterized in that, is provided with chamfered section at the upper surface of described second positioning tooth.
7. the plastic compression mould of commutator according to claim 6, is characterized in that, the upper surface of described positioning convex is circumferentially provided with along it conical surface that upper end is little, lower end is large.
8. the plastic compression mould of commutator according to claim 7, is characterized in that, described patrix, described middle mould, described counterdie and one or more mould of described jig are provided with lead.
9. the plastic compression mould of commutator according to claim 8, is characterized in that, described patrix, described middle mould, described counterdie and one or more mould of described jig are provided with pilot hole.
10. the plastic compression mould of commutator according to claim 9, is characterized in that, the top of described lead is that circular arc is protruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579164.4U CN204820116U (en) | 2015-08-05 | 2015-08-05 | Plastic compression mould of commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579164.4U CN204820116U (en) | 2015-08-05 | 2015-08-05 | Plastic compression mould of commutator |
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| Publication Number | Publication Date |
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| CN204820116U true CN204820116U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520579164.4U Active CN204820116U (en) | 2015-08-05 | 2015-08-05 | Plastic compression mould of commutator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406322A (en) * | 2015-11-19 | 2016-03-16 | 华瑞电器股份有限公司 | Commutator pressing mold |
| CN106129769A (en) * | 2016-08-17 | 2016-11-16 | 江门市鸿凯换向器有限公司 | A kind of support formula diverter compression tool |
| CN106159633A (en) * | 2016-08-17 | 2016-11-23 | 江门市鸿凯换向器有限公司 | A kind of two-stage buffer-type diverter compression tool |
-
2015
- 2015-08-05 CN CN201520579164.4U patent/CN204820116U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406322A (en) * | 2015-11-19 | 2016-03-16 | 华瑞电器股份有限公司 | Commutator pressing mold |
| CN106129769A (en) * | 2016-08-17 | 2016-11-16 | 江门市鸿凯换向器有限公司 | A kind of support formula diverter compression tool |
| CN106159633A (en) * | 2016-08-17 | 2016-11-23 | 江门市鸿凯换向器有限公司 | A kind of two-stage buffer-type diverter compression tool |
| CN106159633B (en) * | 2016-08-17 | 2018-11-13 | 江门市鸿凯换向器有限公司 | A kind of two-stage buffer-type commutator compression tool |
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