CN213425899U - End cover for motor and mold for manufacturing end cover - Google Patents
End cover for motor and mold for manufacturing end cover Download PDFInfo
- Publication number
- CN213425899U CN213425899U CN202022757457.0U CN202022757457U CN213425899U CN 213425899 U CN213425899 U CN 213425899U CN 202022757457 U CN202022757457 U CN 202022757457U CN 213425899 U CN213425899 U CN 213425899U
- Authority
- CN
- China
- Prior art keywords
- end cover
- hole
- injection molding
- axial
- radial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a mould that is used for end cover of motor and makes this end cover, include: the end cover comprises an end cover body and an injection molding body which is integrally injection molded with the end cover body; the end cover body is provided with a through hole, and at least one axial male limiting part is arranged in the through hole along the axial direction of the through hole; the end surface of the end cover body facing the injection molding body is provided with a plurality of radial male limiting parts at intervals around the circumferential edge of the through hole; the circumferential side wall of the part of the injection molding body, which is suitable for being inserted into the through hole, is provided with at least one axial female limiting part which is suitable for being matched with at least one axial male limiting part one by one; and the injection molding body is suitable for being equipped with a plurality of radial female cooperation portions that are suitable for the one-to-one and a plurality of radial public spacing portion cooperations with the terminal surface that the end cover body offseted. The utility model provides the concentricity of the end cover after high end cover processing convenience and improvement processing.
Description
Technical Field
The utility model relates to the technical field of electric machine, especially, relate to a mould that is used for end cover of motor and makes this end cover.
Background
One type of linear guide used in the prior art is constructed by providing guidance and positioning for a spline shaft on a motor, by positioning a spline shaft end cap and then inserting a complementary spline shaft within the spline so that the spline shaft advances linearly in one direction or the other. This application is used on a series of lead screw stepper motors, more specifically K-spline shaft hybrid lead screw stepper motors.
The conventional method of manufacturing end caps and spline shafts of the type described above is to thread the end caps and the injection molded body and then to assemble the end caps and the injection molded body together after applying glue to the threads of the injection molded body. This mode of operation is inconvenient to operate, specifically:
(1) the end cover and the injection molding body are fussy to process threads, and raw materials are wasted;
(2) the use of glue may cause physical harm to the end customer;
(3) during repeated operation of the motor, there is a possibility that the injection molded body and the end cap may loosen or even separate (and have received similar feedback from the user).
Furthermore, the process of machining these components may result in components that cannot be performed efficiently due to the problem of eccentricity when machining the threads.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is first purpose to provide an end cover for motor to solve the technical problem who improves the end cover processing convenience and improve the concentricity of the end cover after processing.
The second purpose of the utility model is to provide a mould to solve the technical problem who improves the end cover processing convenience and improve the concentricity of the end cover after processing.
The utility model discloses an end cover for motor realizes like this:
an end cap for an electric machine comprising: the end cover comprises an end cover body and an injection molding body which is integrally injection molded with the end cover body; wherein
The end cover body is provided with a through hole, and at least one axial male limiting part is arranged in the through hole along the axial direction of the through hole; the end surface of the end cover body facing the injection molding body is provided with a plurality of radial male limiting parts at intervals around the circumferential edge of the through hole; and
the circumferential side wall of the part of the injection molding body, which is suitable for being inserted into the through hole, is provided with at least one axial female limiting part which is suitable for being matched with at least one axial male limiting part one by one; and the end face of the injection molding body, which is suitable for abutting against the end cover body, is provided with a plurality of radial female matching parts which are suitable for being matched with the radial male limiting parts in a one-to-one correspondence manner.
In a preferred embodiment of the present invention, the axial male limiting portion is an annular structure along a circumferential direction of the through hole; and
the axial female limiting part is an annular structural body along the circumferential direction of the side wall of the part, which is suitable for being inserted into the through hole, of the injection molding body.
In a preferred embodiment of the present invention, the axial male limiting portion is a positioning groove concavely formed on a circumferential side wall of the through hole; and
the axial female limiting part is a positioning convex ring which is suitable for being matched with the positioning groove and is arranged on the circumferential side wall of the part, which is suitable for being inserted into the through hole, of the injection molding body.
In the preferred embodiment of the present invention, the plurality of the radial male limiting portions are uniformly distributed around the circumferential edge of the through hole on the end surface of the end cover body facing the injection molded body.
In a preferred embodiment of the present invention, the plurality of radial male limiting portions have the same structure; the radial male limiting part is a limiting groove which is concavely arranged on the end surface of the end cover body facing the injection molding body around the circumferential edge of the through hole; and
the structures of the radial female matching parts are the same; the radial female matching part is provided with a protruding part on the end face of the injection molding body, which is suitable for abutting against the end cover body.
In a preferred embodiment of the present invention, the limiting groove is formed along a radial direction of the through hole and extends from the hole wall of the through hole to an outside of the through hole.
In a preferred embodiment of the present invention, the limiting groove has a semicircular cross section along the radial direction of the through hole.
In the preferred embodiment of the present invention, the injection molding body has a shaft hole, and the inner wall of the shaft hole at the end of the injection molding body away from the end cover has a spline.
The utility model discloses a mould realizes like this:
a mold suitable for manufacturing the end cap for an electric machine, comprising: the fixed die assembly, the movable die assembly and the positioning block are used for assembling the end cover body; wherein
The fixed die assembly comprises a fixed die plate and a first die core; the fixed mold plate is provided with a main flow channel;
the movable mould component comprises a movable mould plate and a second mould core; the movable template and the fixed template form a sub-runner communicated with the main runner and an injection molding cavity communicated with the sub-runner after being surrounded; the movable template is provided with a pouring gate communicated with the sub-runner; and
the positioning block is placed on the movable template; the first mold core penetrates through the end cover body and then is inserted into the injection molding cavity, and the second mold core is inserted into the injection molding cavity.
In a preferred embodiment of the present invention, the movable mold assembly further includes a push plate and a thimble fixedly connected to the push plate;
the movable mould plate is provided with an ejector pin hole, and the ejector pin penetrates through the ejector pin hole to be abutted against the positioning block.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a mould that is used for end cover of motor and makes this end cover, the integrative injection moulding of end cover body and injection molding, the manufacturing efficiency of the end cover under this kind of processing method is high, and can effectively guarantee the concentricity of end cover body and injection molding, so can provide the smooth and easy removal environment of integral key shaft promptly.
In addition, through the public spacing portion of axial and the female spacing portion of axial that the cooperation that is equipped with between end cover body and the injection molding body was used, again in coordination with radial public spacing portion and radial female cooperation portion, can effectively improve the firmness of being connected between end cover body and the injection molding body to make both difficult the appearance after using for a long time rock and the phenomenon of separation.
Drawings
Fig. 1 is a schematic view of an overall structure of an end cover for an electric motor according to embodiment 1 of the present invention;
fig. 2 is an exploded view of an end cover for an electric motor according to embodiment 1 of the present invention;
fig. 3 is a schematic view of a state of a mold according to an embodiment of the present invention in manufacturing an end cap for a motor according to embodiment 1.
In the figure: the end cover comprises an end cover body 1, a through hole 101, an injection molding body 2, a radial female matching part 3, an axial female limiting part 4, a radial male limiting part 5, a spline 21, a boss part 22, an axial male limiting part 6, a main runner 7, a positioning block 8, a cavity 10, a pouring gate 11, a second mold core 12, a thimble 13, a push plate 14, a branch runner 15, a fixed mold plate 16, a movable mold plate 17 and a first mold core 18.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example 1:
referring to fig. 1 and 2, the present embodiment provides an end cover for a motor, including: end cover body 1 and with end cover body 1 integrative injection moulding's injection molding 2.
Firstly, the end cover body 1 is provided with a through hole 101 for injection molding connection with the injection molding body 2, and at least one axial male limiting part 6 is arranged in the through hole 101 along the axial direction of the through hole 101; and the end surface of the end cover body 1 facing the injection molding body 2 is provided with a plurality of radial male limiting parts 5 at intervals around the circumferential edge of the through hole 101.
Furthermore, the circumferential side wall of the part of the injection molded body 2 suitable for being inserted into the through hole 101 is provided with at least one axial female limiting part 4 suitable for being matched with at least one axial male limiting part 6 one by one; and the end face that the injection molding body 2 is suitable for and supports against with end cover body 1 is equipped with and is suitable for a plurality of radial female cooperation portions of one-to-one and a plurality of radial public spacing portion 5 cooperations. In the injection molding body 2 and the integrative injection moulding's of end cover body 1 in-process, female spacing portion 4 of axial cooperates with the public spacing portion 6 of axial, and radial public spacing portion 5 then cooperates with radial female cooperation portion 3, improves both complex firmness after injection molding body 2 and end cover body 1 from this for both are difficult for appearing rocking and the phenomenon of separation after long-term the use.
It should be noted that, with the injection molded body 2 of the present embodiment, a boss portion 22 is formed between a portion of the injection molded body 2 adapted to be inserted into the through hole 101 and a portion of the injection molded body 2 not inserted into the through hole 101, and an outer diameter of the portion of the injection molded body 2 adapted to be inserted into the through hole 101 is smaller than an outer diameter of the portion of the injection molded body 2 not inserted into the through hole 101. After the injection molded body 2 and the end cap body 1 are injection molded and connected, the boss portion 22 abuts against the end surface of the end cap body 1 facing the injection molded body 2. The radial female fitting portion 3 of the present embodiment is provided on the end surface of the boss portion 22 facing the end cover body 1.
It should also be noted that the injection molded body 2 has an axial hole, and the inner wall of the axial hole at the end of the injection molded body 2 remote from the end cap has splines 21.
In an alternative implementation case, with reference to the drawings of the present embodiment, the axial male limiting portion 6 is an annular structural body along the circumferential direction of the through hole 101; and the axial female limiting portion 4 is a ring-shaped structural body along the circumferential direction of the side wall of the portion of the injection molded body 2 adapted to be inserted into the through hole 101. Of course, the shaft male limiting portion and the shaft female limiting portion 4 may not be annular structures, and the drawings of the present embodiment only exemplify the case of the annular structures, and do not limit the axial male limiting portion 6 and the axial female limiting portion 4 absolutely.
For specific shapes of the axial male limiting part 6 and the axial female limiting part 4 of the present embodiment, in combination with the drawings of the present embodiment, in an optional implementation case, the axial male limiting part 6 is a positioning groove concavely arranged on a circumferential side wall of the through hole 101; and the axial female limiting part 4 is a positioning convex ring which is suitable for being matched with the positioning groove and is arranged on the circumferential side wall of the part of the injection molding body 2 which is suitable for being inserted into the through hole 101. Of course, the axial male limiting portion 6 may be a convex structure, and the axial female limiting portion 4 is a concave structure, for this, the embodiment only takes the case that the axial male limiting portion 6 shown in the drawings is a positioning groove, and the axial female limiting portion 4 is a positioning convex ring as an example, but not as an absolute limitation.
Furthermore, in an alternative embodiment, a plurality of radial male detents 5 are distributed uniformly around the circumferential edge of the through-hole 101 on the end face of the end cap body 1 facing the injection molded body 2. The evenly distributed structure can improve the homogeneity of overall structure on the one hand, and on the other hand can improve the equilibrium of the faying face of moulding plastics of end cover body 1 and injection molding 2.
Regarding the specific shapes of the radial male limiting part 5 and the radial female matching part 3 of the present embodiment, in combination with the drawings of the present embodiment, in an alternative implementation case, the structures of the plurality of radial male limiting parts 5 are the same; the radial male limiting part 5 is a limiting groove which is concavely arranged on the end surface of the end cover body 1 facing the injection molding body 2 around the circumferential edge of the through hole 101; and the radial female matching parts 3 are all the same in structure; the radial female matching part 3 is provided with a convex part on the end face of the injection molding body 2, which is suitable for abutting against the end cover body 1. Of course, the radial male limiting portion 5 may be a convex structure, and the radial female mating portion 3 is a concave structure, for this, the embodiment only takes the case that the radial male limiting portion 5 shown in the drawings is a limiting groove, and the radial female mating portion 3 is a convex portion as an example, but not as an absolute limitation.
In addition to the above structure, the limiting groove of the present embodiment is formed along the radial direction of the through hole 101 and extends from the hole wall of the through hole 101 to the outside of the through hole 101. With such a structure, the through hole 101 and the limiting groove form a communicating structure. Alternatively, the limiting groove has a semicircular cross section along the radial direction of the through hole 101.
Example 2:
referring to fig. 3, the present embodiment provides a mold for manufacturing the end cap for the motor of embodiment 1, including: the fixed die assembly, the movable die assembly and the positioning block 8 are used for assembling the end cover body 1; wherein the stationary die assembly comprises a stationary die plate 16 and a first die core 18; the fixed die plate 16 is provided with a main runner 7; the movable mould component comprises a movable mould plate 17 and a second mould core 12; the movable mould plate 17 and the fixed mould plate 16 form a sub-runner 15 communicated with the main runner 7 and an injection mould cavity communicated with the sub-runner 15 after being surrounded; the movable mould plate 17 is provided with a pouring gate communicated with the sub-runner 15; and the positioning block 8 is placed on the movable template 17; the first mold core 18 passes through the end cover body 1 and then is inserted into the injection molding cavity, and the second mold core 12 is inserted into the injection molding cavity.
In addition, the movable mold assembly of the embodiment further comprises a push plate 14 and an ejector pin 13 fixedly connected with the push plate 14; the movable die plate 17 is provided with a thimble 13 hole, and the thimble 13 passes through the thimble 13 hole and abuts against the positioning block 8.
The mold of the present embodiment is specifically applied to the process of manufacturing the end cap for a motor of embodiment 1 as follows:
step S1: manually placing the end cover body 1 into the positioning block 8;
step S2: placing the positioning block 8 with the end cover body 1 in place into a movable template 17 of a mold;
step S3: combining the fixed die plate 16 and the movable die plate 17 together through an injection molding machine so as to fix the end cover body 1 and the positioning block 8; and the first mold core 18 and the second mold core 12 are merged together, the second mold core 12 is suitable for forming the splines 21 during injection molding, and the first mold core 18 is suitable for forming the cavity;
step S4: the molten resin reaches the pouring gate 11 through the main runner 7 and the sub-runners 15, and is finally filled into the cavity 10 of the end cover body 1 and the axial male limiting part 6 and the radial male limiting part 5 in the end cover body 1; then the second mold core 12 is wrapped by resin to form a spline 21, and the first mold core 18 forms a cavity;
step S5: the movable template 17 is moved backwards through the injection molding machine, so that the movable template 17 is separated from the fixed template 16, and then the push plate 14 moves towards the direction of the fixed template 16 so as to drive the thimble 13 to eject the positioning block 8 and the end cover body 1;
step S5: manually taking out the injection molded end cover body 1 and the injection molded body 2; the process is completed.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. An end cap for an electric machine, comprising: the end cover comprises an end cover body and an injection molding body which is integrally injection molded with the end cover body; wherein
The end cover body is provided with a through hole, and at least one axial male limiting part is arranged in the through hole along the axial direction of the through hole; the end surface of the end cover body facing the injection molding body is provided with a plurality of radial male limiting parts at intervals around the circumferential edge of the through hole; and
the circumferential side wall of the part of the injection molding body, which is suitable for being inserted into the through hole, is provided with at least one axial female limiting part which is suitable for being matched with at least one axial male limiting part one by one; and the end face of the injection molding body, which is suitable for abutting against the end cover body, is provided with a plurality of radial female matching parts which are suitable for being matched with the radial male limiting parts in a one-to-one correspondence manner.
2. The end cover for an electric machine according to claim 1, wherein the axial male retention portion is a ring-shaped structure along a circumferential direction of the through hole; and
the axial female limiting part is an annular structural body along the circumferential direction of the side wall of the part, which is suitable for being inserted into the through hole, of the injection molding body.
3. The end cover for the motor according to any one of claims 1 or 2, wherein the axial male limiting part is a positioning groove concavely arranged on a circumferential side wall of the through hole; and
the axial female limiting part is a positioning convex ring which is suitable for being matched with the positioning groove and is arranged on the circumferential side wall of the part, which is suitable for being inserted into the through hole, of the injection molding body.
4. The end cover for an electric machine according to claim 1, wherein a plurality of the radial male retention portions are evenly distributed around a circumferential edge of the through hole at an end surface of the end cover body facing the injection molded body.
5. The end cover for an electric machine according to any one of claims 1 or 4, wherein a plurality of the radial male retention portions are all identical in structure; the radial male limiting part is a limiting groove which is concavely arranged on the end surface of the end cover body facing the injection molding body around the circumferential edge of the through hole; and
the structures of the radial female matching parts are the same; the radial female matching part is provided with a protruding part on the end face of the injection molding body, which is suitable for abutting against the end cover body.
6. The end cover for the motor according to claim 5, wherein the limiting groove is formed in a radial direction of the through hole and extends from the hole wall of the through hole to the outside of the through hole.
7. The end cover for the motor according to claim 6, wherein a cross section of the stopper groove along a radial direction of the through hole is semicircular.
8. The end cap for an electric machine of claim 1, wherein the injection molded body has an axial bore, and an inner wall of the axial bore at an end of the injection molded body remote from the end cap has splines.
9. A mold suitable for manufacturing the end cover for the motor according to any one of claims 1 to 8, comprising: the fixed die assembly, the movable die assembly and the positioning block are used for assembling the end cover body; wherein
The fixed die assembly comprises a fixed die plate and a first die core; the fixed mold plate is provided with a main flow channel;
the movable mould component comprises a movable mould plate and a second mould core; the movable template and the fixed template form a sub-runner communicated with the main runner and an injection molding cavity communicated with the sub-runner after being surrounded; the movable template is provided with a pouring gate communicated with the sub-runner; and
the positioning block is placed on the movable template; the first mold core penetrates through the end cover body and then is inserted into the injection molding cavity, and the second mold core is inserted into the injection molding cavity.
10. The mold according to claim 9, wherein the movable mold assembly further comprises a push plate and a thimble fixedly connected with the push plate;
the movable mould plate is provided with an ejector pin hole, and the ejector pin penetrates through the ejector pin hole to be abutted against the positioning block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757457.0U CN213425899U (en) | 2020-11-25 | 2020-11-25 | End cover for motor and mold for manufacturing end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757457.0U CN213425899U (en) | 2020-11-25 | 2020-11-25 | End cover for motor and mold for manufacturing end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213425899U true CN213425899U (en) | 2021-06-11 |
Family
ID=76251930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022757457.0U Active CN213425899U (en) | 2020-11-25 | 2020-11-25 | End cover for motor and mold for manufacturing end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213425899U (en) |
-
2020
- 2020-11-25 CN CN202022757457.0U patent/CN213425899U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4423540A (en) | Method of manufacturing a bearing housing | |
| WO2021036432A1 (en) | Integrated forming structure, injection mold and forming process of rotary transformer | |
| CN213425899U (en) | End cover for motor and mold for manufacturing end cover | |
| CN100563065C (en) | The manufacture method of copper plane converter | |
| CN111577863A (en) | Rubber-coated injection-molded gear, injection molding process and mold | |
| JP4314523B2 (en) | Synthetic resin gear manufacturing method | |
| CN108381153B (en) | Press fitting device for injection molding assembly of magnetic conduction ring of electric steering gear | |
| CN105798562A (en) | Offset-free mold machining process | |
| CN101083379A (en) | Process for manufacturing commutator | |
| CN108145921B (en) | Split sprue bush and manufacturing method thereof | |
| CN216306460U (en) | Carbon fiber product forming device containing metal part | |
| JP2018167580A (en) | Mold device for resin molding and resin molding method | |
| CN108724633B (en) | Movable mould core and plastic screw cap forming mould | |
| JP3062838B2 (en) | Molding mold and method of manufacturing stator mold body using the molding mold | |
| CN212498663U (en) | Insert and molded part with same | |
| CN220741964U (en) | Injection molding structure for preventing uneven thickness of transition area | |
| CN213916000U (en) | Sand-shooting matching type shell forming die device | |
| CN219153475U (en) | Die easy to disassemble and assemble | |
| CN219055202U (en) | Forming die | |
| CN214820498U (en) | Die for liquid crystal rotating shaft cover | |
| CN219006818U (en) | Injection mold with internal thread preparation mold insert | |
| CN219287238U (en) | Magnetic shoe fixing frame and outer rotor with same | |
| CN110680996B (en) | Full-residue-discharging type syringe | |
| CN220614776U (en) | Forming die for injection molding of fuel filter pump | |
| CN217123852U (en) | Mould benevolence mounting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |