CN220570433U - Machining device for motor stator assembly - Google Patents

Abstract

The utility model discloses a processing device for a motor stator assembly, which comprises a bottom die platform, an upper die platform and a core rod structure, wherein: the upper die platform is arranged above the bottom die platform and is detachably connected with the bottom die platform through a first locking piece, the core rod structure is arranged along the axial direction of the bottom die platform and is detachably connected with the bottom die platform through a second locking piece, and the upper die platform is provided with an injection port capable of leading in potting liquid in a penetrating way; after the motor stator assembly is arranged on the processing device, the motor stator assembly is sleeved outside the mandrel structure and clamped between the bottom die platform and the upper die platform, the injection port is communicated with the inner wall of the motor stator assembly, and the mandrel structure can extrude the inner wall of the motor stator assembly outwards after being heated and expanded. This processingequipment can pass through the second retaining member and connect the plug structure on the die block platform to strengthen the stability of plug structure, be favorable to the even atress of motor stator module inside wall, promoted processingquality and yields.

Description

Machining device for motor stator assembly

Technical Field

The utility model relates to the field of motor machining, in particular to a machining device for a motor stator assembly.

Background

The stator assembly of the motor is one of important components of the motor, and comprises an iron core and a coil on the inner side of the iron core, in order to improve the insulation strength, dust resistance, water resistance, moisture resistance, corrosion resistance, mechanical strength, thermal conductivity, heat dissipation effect and the like of the coil, the coil is often required to be subjected to encapsulation treatment to be bonded into a firm whole, and when in encapsulation, the iron core and the coil are assembled on a special processing device, then filling encapsulation liquid to bond the iron core and the coil, and finally the processed stator assembly is demoulded from the processing device.

The existing processing device, such as a filling and sealing tool for a stator assembly of a servo motor, disclosed in Chinese patent No. 207339590U, is provided with an upper wire outlet end filling and sealing die, a lower non-wire outlet end filling and sealing die and a middle core rod positioned at the center of the non-wire outlet end filling and sealing die, wherein the stator assembly is sleeved outside the middle core rod and clamped between the wire outlet end filling and sealing die and the non-wire outlet end filling and sealing die, the center of the wire outlet end filling and sealing die is of a through structure, filling and sealing liquid can be filled into the stator assembly through the through structure, and the middle core rod can expand and squeeze the inner side wall of the stator assembly so as to ensure the flatness of the inner side wall of the stator assembly after filling and sealing. However, the middle core rod is directly placed on the upper side of the non-wire outlet end encapsulating mould, so that the stability is poor, uniform stress on each part of the inner side wall of the stator assembly is not facilitated, the encapsulating thickness of each part of the encapsulated stator assembly is different, and the processing quality and the yield are affected.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the processing device for the motor stator assembly, and the mandrel structure can be connected to the bottom die platform through the second locking piece, so that the stability of the mandrel structure is enhanced, the uniform stress on the inner side wall of the motor stator assembly is facilitated, and the processing quality and the yield are improved.

The utility model discloses a processing device for a motor stator assembly, which comprises a bottom die platform, an upper die platform and a core rod structure, wherein: the upper die platform is arranged above the bottom die platform and is detachably connected with the bottom die platform through a first locking piece, the core rod structure is arranged along the axial direction of the bottom die platform and is detachably connected with the bottom die platform through a second locking piece, and the upper die platform is provided with an injection port in a penetrating way, wherein the injection port can be used for introducing filling and sealing liquid; after the motor stator assembly is arranged on the processing device, the motor stator assembly is sleeved outside the mandrel structure and clamped between the bottom die platform and the upper die platform, the injection port is communicated with the inner wall of the motor stator assembly, and the mandrel structure can extrude the inner wall of the motor stator assembly outwards after being heated and expanded.

Preferably, the mandrel structure is provided with a third channel from the bottom surface to the upper recess, the bottom die platform is provided with a fourth channel correspondingly arranged with the third channel in a penetrating manner, and the upper end of the second locking piece can sequentially extend into the fourth channel and the third channel and is connected with the third channel.

Preferably, the second locking piece comprises a second locking rod part and a second locking head part connected with the lower end of the second locking rod part, the outer diameter of the second locking head part is larger than that of the second locking rod part, after the second locking piece is installed, the upper end of the second locking rod part sequentially stretches into the fourth channel and the third channel and is connected with the third channel, and the top surface of the second locking head part is abutted against the bottom die platform.

Preferably, the bottom die platform is provided with a sinking groove in an upward sinking way from the bottom surface of the bottom die platform, the second locking head is arranged in the sinking groove after installation, the top surface of the second locking head is propped against the top wall of the sinking groove, and the bottom surface of the second locking head is not lower than the bottom surface of the bottom die platform.

Preferably, the bottom die platform is provided with a first channel for connecting with the lower end of the first locking piece, the first channel is arranged outside the fourth channel and is parallel to the fourth channel, the upper die platform is provided with a second channel for connecting with the upper end of the first locking piece, and the second channel is arranged outside the injection port; the first passageway is from the top surface undercut setting of die block platform, the second passageway runs through the setting of last mould platform, first retaining member includes first locking lever portion and the first locking head that links to each other with first locking lever portion upper end, the external diameter of first locking head is greater than the external diameter of first locking lever portion, after the installation the lower extreme of first locking lever portion stretches into in proper order in second passageway and the first passageway and is connected with first passageway, the bottom surface of first locking head offsets with the top surface of last mould platform.

Preferably, the lower end of the first locking rod part is in threaded connection with the first channel, and the upper end of the second locking rod part is in threaded connection with the third channel.

Preferably, a first positioning groove is formed in the upper side of the bottom die platform, a first annular positioning table and a second annular positioning table which are coaxially arranged with the fourth channel are arranged on the bottom wall of the first positioning groove, the inner diameter of the second annular positioning table is larger than that of the first annular positioning table, and the height of the second annular positioning table is higher than that of the first annular positioning table; the lower side of the upper die platform is provided with a second positioning groove which is coaxially arranged with the injection port, the inner diameter of the second positioning groove is larger than that of the injection port, and the second positioning groove is communicated with the injection port; after installation, the bottom end of the motor stator assembly is limited on the inner side wall of the first positioning groove and is arranged on the second annular positioning table, the top end of the motor stator assembly is limited on the inner side wall of the second positioning groove, the bottom end of the core rod structure is limited on the inner side wall of the second annular positioning table and is arranged on the first annular positioning table, and the first annular positioning table is clamped between the second locking head and the core rod structure.

Preferably, the mandrel structure is made of non-adhesive materials, a plurality of first locking pieces are arranged, the plurality of first locking pieces are circumferentially arranged along the mandrel structure, a plurality of first channels are circumferentially arranged along the first positioning groove, and a plurality of second channels are circumferentially arranged along the second positioning groove; the first annular positioning table is provided with a first annular sealing ring, the first annular positioning table is downwards sunken from the top surface of the first annular positioning table to form a first annular groove for installing the first annular sealing ring, and the top surface of the first annular sealing ring can prop against the bottom surface of the core rod structure after installation; the motor stator assembly comprises a motor stator assembly, a motor stator assembly and a motor stator assembly, wherein the motor stator assembly is characterized in that a first annular positioning table is arranged on the motor stator assembly, a first annular groove is formed in the motor stator assembly, and a first annular groove is formed in the motor stator assembly.

Preferably, the motor stator assembly comprises a stator core and a hollow cup coil sleeved on the inner side of the stator core, the wire outlet end of the hollow cup coil is positioned at the upper end of the hollow cup coil, a coil sheath for protecting the wire outlet end of the hollow cup coil is further arranged between the stator core and the upper die platform, the upper end of the stator core can be fixedly connected with the coil sheath, an expansion gap is formed between the core rod structure and the inner side wall of the hollow cup coil, the expansion gap is communicated with the injection port, and the core rod structure can extrude the hollow cup coil to be attached to the inner side wall of the stator core after being heated and expanded.

Preferably, the inner diameter of the sprue is larger than the outer diameter of the core rod structure, and the core rod structure can extend to the upper part of the sprue; the coil sheath comprises an annular bottom plate and an annular side plate connected to the upper side of the annular bottom plate, after installation, the bottom surface of the annular bottom plate is fixedly connected with the top surface of the stator core, the outer wall of the annular side plate is abutted to the upper die platform, the inner side wall of the annular bottom plate is flush with or basically flush with the inner side wall of the stator core, the inner side wall of the annular bottom plate can be attached to the outer side wall of the hollow cup coil, and the top surface of the core rod structure is higher than the top surface of the hollow cup coil.

According to the processing device disclosed by the utility model, as the core rod structure is detachably connected with the bottom die platform through the second locking piece, the core rod structure can be fixed on the bottom die platform through the second locking piece, so that the stability of the core rod structure is enhanced, the core rod structure can uniformly expand towards the periphery of the core rod structure, the uniform stress on the inner side wall of the motor stator assembly is facilitated, and the processing quality and the yield are improved; in addition, the motor stator assembly is clamped between the upper die platform and the bottom die platform, the upper die platform and the bottom die platform are detachably connected through the first locking piece, assembly or disassembly is convenient, and machining efficiency is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a processing apparatus according to an embodiment of the present utility model.

Fig. 2 is an exploded view of a processing device according to an embodiment of the present utility model.

Fig. 3 is an exploded view of a stator assembly of an electric machine according to an embodiment of the present utility model.

Fig. 4 is a schematic cross-sectional view of a motor stator assembly according to an embodiment of the present utility model after being mounted on a processing device.

Fig. 5 is an enlarged view of a portion C in fig. 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact, but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1 to 5, as an embodiment of the present utility model, a processing apparatus 100 for a motor stator assembly 200 is disclosed, the processing apparatus 100 includes a bottom die stage 1, an upper die stage 2, and a mandrel structure 3, the upper die stage 2 is disposed above the bottom die stage 1 and detachably connected to the bottom die stage 2 by a first locking member 5, the mandrel structure 3 is disposed along an axial direction of the bottom die stage 1 and detachably connected to the bottom die stage 1 by a second locking member 6, the upper die stage 2 is perforated with an injection port 22 capable of introducing a potting liquid, and the potting liquid may be an insulating paint, an epoxy resin, or the like. After the motor stator assembly 200 is installed on the processing device 100, the motor stator assembly 200 is sleeved outside the mandrel structure 3 and clamped between the bottom die platform 1 and the upper die platform 2, the injection port 22 is communicated with the inner wall of the motor stator assembly 200, and the mandrel structure 3 can extrude the inner wall of the motor stator assembly 200 outwards after being heated and expanded. In this embodiment, since the core rod structure 3 is detachably connected with the bottom die platform 1 through the second locking member 6, the core rod structure 3 can be fixed on the bottom die platform 1 through the second locking member 6, so as to enhance the stability of the core rod structure 3, enable the core rod structure 3 to expand uniformly towards the periphery thereof, facilitate uniform stress of the inner side wall of the motor stator assembly 200, and improve the processing quality and yield; in addition, the motor stator assembly 200 is clamped between the upper die platform 2 and the bottom die platform 1, the upper die platform 2 and the bottom die platform 1 are detachably connected through the first locking piece 5, assembly or disassembly is convenient, and machining efficiency is improved.

As shown in fig. 4, in some embodiments, the mandrel structure 3 is provided with a third channel 31 recessed upward from the bottom surface thereof, the bottom die platform 1 is perforated with a fourth channel 12 arranged corresponding to the third channel 31, and the upper end of the second locking member 6 can sequentially extend into the fourth channel 12 and the third channel 31 and be connected with the third channel 31, so that the assembly is simple and convenient. The third channel 31 is provided along the central axis of the core rod structure 3, facilitates the centering installation of the core rod structure 3, and uniformly expands the core rod structure 3 toward the outer periphery thereof.

As shown in fig. 2, in some embodiments, the second locking member 6 includes a second locking rod 61 and a second locking head 62 connected to a lower end of the second locking rod 61, the outer diameter of the second locking head 62 is larger than that of the second locking rod 61, and an upper end of the second locking rod 61 sequentially extends into the fourth channel 12 and the third channel 31 and is connected to the third channel 31 after being mounted, and a top surface of the second locking head 62 abuts against the bottom die platform 1.

As shown in fig. 2, in some embodiments, the bottom die platform 1 is provided with a sinking groove 14 recessed from the bottom surface thereof, the second locking head 62 is disposed in the sinking groove 14 after installation, the top surface of the second locking head 62 abuts against the top wall of the sinking groove 14, the bottom surface of the second locking head 62 is not lower than the bottom surface of the bottom die platform 1, so that the second locking head 62 can be hidden in the sinking groove 14, the processing device 100 can be placed on the surface of a medium such as a processing table surface or a tabletop, and the bottom surface of the bottom die platform 1 contacts the surface of the medium such as the processing table surface or the tabletop, so that the processing is facilitated.

As shown in fig. 2, in some embodiments, the bottom mold stage 1 is provided with a first channel 13 for connection to the lower end of the first locking member 5, the first channel 13 being disposed outside the fourth channel 12 and disposed parallel to the fourth channel 12, and the upper mold stage 2 is provided with a second channel 23 for connection to the upper end of the first locking member 5, the second channel 23 being disposed outside the sprue 22. The first locking member 5 is arranged outside the core rod structure 3 and the motor stator assembly 200 after installation.

In some embodiments, the first channel 13 is recessed from the top surface of the bottom mold platform 1, the second channel 23 is disposed through the upper mold platform 2, the first locking member 5 includes a first locking rod portion 51 and a first locking head portion 52 connected to the upper end of the first locking rod portion 51, the outer diameter of the first locking head portion 52 is larger than the outer diameter of the first locking rod portion 51, and after installation, the lower end of the first locking rod portion 51 sequentially extends into the second channel 23 and the first channel 13 and is connected with the first channel 13, and the bottom surface of the first locking head portion 52 abuts against the top surface of the upper mold platform 2. In this embodiment, the first channel 13 penetrates through the upper and lower end surfaces of the bottom die platform 1, which is convenient for production, and in other embodiments, the first channel 13 may be a groove structure only disposed on the upper portion of the bottom die platform 1, and may also be connected to the lower end of the first locking lever portion 51.

In some embodiments, the first locking member 5 is configured as a bolt, the first locking rod 61 includes an upper smooth rod and a lower threaded rod, the upper smooth rod conveniently extends into the second channel 23, the inner side wall of the first channel 13 is provided with a first thread structure matched with the lower threaded rod, the lower end of the lower threaded rod is in threaded connection with the first channel 13, the upper mold platform 2 and the bottom mold platform 1 sequentially extend into the second channel 23 and the first channel 13 through the first locking rod 61 of the first locking member 5 and are in threaded connection with the first channel 13, so that the upper mold platform 2 and the bottom mold platform 1 are tensioned, the motor stator assembly 200 is tightly clamped between the upper mold platform 2 and the bottom mold platform 1, the connection is tight and stable, and the potting liquid is prevented from leaking out of the motor stator assembly 200. The second locking piece 6 is set to be the bolt, the lateral wall of second locking lever portion 61 sets up to the helicitic texture, the inside wall of third passageway 31 is provided with the second helicitic texture with second locking lever portion 61 assorted, threaded connection between second locking lever portion 61 upper end and the third passageway 31, stretch into fourth passageway 12 and third passageway 31 in proper order through second locking lever portion 61 of second locking piece 6 between core rod structure 3 and the die block platform 1, and with third passageway 31 threaded connection, thereby make core rod structure 3 and die block platform 1 taut, the firm location of core rod structure 3 is on die block platform 1, prevent that core rod structure 3 from moving. Bolt setting, loading and unloading are convenient, conveniently adjust the pretightning degree between mould platform 2 and die block platform 1 to and the pretightning degree between plug structure 3 and the die block platform 1, and first retaining member 5 can also lock, fix a position at different height with the relative die block platform 1 of mould platform 2 through reciprocating, thereby is suitable for the motor stator subassembly 200 of not co-altitude, and application scope is more extensive. Of course, in other embodiments, the first locking member 5 or the second locking member 6 may be configured as other detachable locking members such as a screw, and the detachable connection may be implemented.

As shown in fig. 4 and 5, in some embodiments, a first positioning groove 11 is provided on the upper side of the bottom mold platform 1, a first annular positioning table 111 and a second annular positioning table 112 coaxially arranged with the fourth channel 12 are provided on the bottom wall of the first positioning groove 11, the inner diameter of the second annular positioning table 112 is larger than the inner diameter of the first annular positioning table 111, and the height of the second annular positioning table 112 is higher than the height of the first annular positioning table 111. The lower side of the upper die platform 2 is provided with a second positioning groove 21, the second positioning groove 21 and the injection opening 22 are coaxially arranged, the inner diameter of the second positioning groove 21 is larger than that of the injection opening 22, and the second positioning groove 21 is communicated with the injection opening 22. The bottom of motor stator subassembly 200 is spacing at the inside wall of first constant head tank 11 after the installation to arrange on second annular location platform 112, the top of motor stator subassembly 200 is spacing at the inside wall of second constant head tank 21, the bottom of plug structure 3 is spacing at the inside wall of second annular location platform 112, and arrange on first annular location platform 111, be favorable to each structure accurate, stable location installation, be favorable to even atress of motor stator subassembly 200 inside wall more, first annular location platform 111 presss from both sides tightly between second locking head 62 and plug structure 3. The bottom end surface of the mandrel structure 3 is located below the bottom end surface of the motor stator assembly 200, so that the inner side wall of the lower end of the motor stator 200 can be fully extruded. As shown in fig. 1, in some specific embodiments, the mandrel structure 3 is made of a non-adhesive material, in this embodiment, the mandrel structure 3 is made of a teflon material, so that the anti-sticking effect is good, as another embodiment of the present utility model, the mandrel structure 3 may also be made of other non-adhesive materials such as PE, POM, etc., at this time, a release agent is preferably added during use to facilitate release, these embodiments can avoid the adhesion of the potting solution on the mandrel structure 3, facilitate release, and reduce the rejection rate, in other embodiments, the bottom film platform 1 and the upper die platform 2 are also made of non-adhesive materials, in other embodiments, the bottom film platform 1 and the upper die platform 2 are also made of a teflon material, and in other embodiments, the bottom film platform 1 or the upper die platform 2 may also be made of a metal material coated with a release agent, so as to facilitate release.

As shown in fig. 2, in some embodiments, three first locking members 5 are disposed, and three first locking members 5 are disposed at uniform intervals along the circumferential direction of the mandrel structure 3, three first channels 13 are disposed at uniform intervals along the circumferential direction of the first positioning groove 11, and three second channels 23 are disposed at uniform intervals along the circumferential direction of the second positioning groove 21, so that the stability of the connection between the upper die platform 2 and the bottom die platform 1 is good. Of course, in other embodiments, one, two, four or other numbers of the first locking members 5 may be disposed, and the first locking members 5 may be disposed at uneven intervals along the circumferential direction of the mandrel structure 3, so that the upper die platform 2 and the bottom die platform 1 can be fastened together.

As shown in fig. 5, in some embodiments, a first annular sealing ring 113 is disposed on the first annular positioning table 111, after the first annular positioning table 111 is installed, the top surface of the first annular sealing ring 113 can abut against the bottom surface of the mandrel structure 3, and after the mandrel structure 3 is tensioned on the carrier film platform 1 by the second locking member 6, the first annular sealing ring 113 is clamped between the first annular positioning table 111 and the mandrel structure 3, so as to enhance the sealing performance and prevent the potting liquid from leaking to the outside. The first annular positioning table 111 is provided with a first annular groove 1111 for installing the first annular sealing ring 113 in a downward recessed manner from the top surface thereof, so that the first annular sealing ring 113 can be positioned and installed accurately and stably. The first annular sealing ring 113 is made of soft materials such as plastic, rubber, silica gel and the like, and has good sealing effect.

In some embodiments, the second annular positioning table 112 is provided with a second annular sealing ring 114, after the second annular positioning table 112 is installed, the top surface of the second annular sealing ring 114 can be propped against the bottom surface of the motor stator assembly 200, and after the motor stator assembly 200 is clamped between the upper die platform 2 and the bottom film platform 1, the second annular sealing ring 114 is clamped between the second annular positioning table 112 and the motor stator assembly 200, so that the tightness is further enhanced, and the potting liquid is prevented from leaking to the outside. The second annular positioning table 112 is provided with a second annular groove 1121 for installing the second annular sealing ring 114 in a downward recessed manner from the top surface thereof, so that the second annular sealing ring 114 can be positioned and installed accurately and stably. The second annular sealing ring 114 is made of soft materials such as plastic, rubber, silica gel and the like, and has good sealing effect.

As shown in fig. 3, in some embodiments, the motor stator assembly 200 includes a stator core 201 and an air cup coil 202 sleeved inside the stator core 201. As shown in fig. 4, the wire outlet end of the coreless coil 202 is located at the upper end of the coreless coil 202, and a coil sheath 4 for protecting the wire outlet end of the coreless coil 202 is disposed between the stator core 201 and the upper die platform 2, so as to prevent the wire outlet end of the coreless coil 202 from being damaged, broken and damaged, and affect the use of the motor stator assembly 200. The upper end of the stator core 201 can be fixedly connected with the coil sheath 4, for example, by means of glue bonding, screw connection, snap connection, etc. The core rod structure 3 and the inner side wall of the coreless coil 202 are arranged at intervals to form an expansion gap a, the setting width of the expansion gap a is calculated according to the expansion coefficient of the material of the core rod structure 3, in this embodiment, the core rod structure 3 is made of teflon, the setting width of the expansion gap a is 0.08-0.2 mm, especially 0.1-0.15 mm, and preferably 0.1mm, so as to ensure that the core rod structure 3 can fully expand in the expansion gap a and press the inner side wall of the coreless coil 202. The expansion gap A is communicated with the injection opening 22, and the injection liquid can flow into the expansion gap A after being led in from the injection opening 22 and flow into the hollow cup coil 202 and between the outer side wall of the hollow cup coil 202 and the inner side wall of the stator core 201, so that on one hand, the injection liquid can flow in and fill conveniently, the fluidity and the filling rate of the injection liquid are improved, bubbles can be discharged conveniently to the outside, the generation of bubbles is reduced, and on the other hand, the core rod structure 3 can extend into or separate from the hollow cup coil 202 conveniently, and the installation and the demoulding are facilitated. The core rod structure 3 can be completely attached to the inner side wall of the hollow cup coil 202 after being heated and expanded, and the hollow cup coil 202 is extruded to be attached to the inner side wall of the stator core 201, so that the hollow cup coil 202 is clamped between the stator core 201 and the core rod structure 3, the inner diameter of the hollow cup coil 3 and the inner diameter of the stator core 201 are high in coaxiality, and the reliability of a motor assembled with the motor stator assembly 200 is improved. In addition, when the core rod structure 3 expands, the filling and sealing liquid between the stator core 201 and the core rod structure 3 can be pushed to flow, the fluidity and the filling rate of the filling and sealing liquid are greatly improved, and the generation of bubbles is reduced, so that the processing quality and the yield of the slotless motor stator assembly 200 are greatly improved, and in addition, one core rod structure 3 can be suitable for the stator assembly 200 with different inner diameters of the hollow cup coils 202, and the application range is wider.

As shown in fig. 5, in some specific embodiments, the inner periphery of the second annular positioning table 112 is provided with an annular groove structure 1122 in a downward recessed manner from the top surface thereof, the second annular groove 1121 is arranged outside the annular groove structure 1122, the inner diameter of the second annular groove 1121 is larger than the outer diameter of the annular groove structure 1122, the bottom end of the hollow cup coil 202 is arranged in the annular groove structure 1122, the bottom end of the hollow cup coil 202 is limited on the outer side wall of the annular groove structure 1122, so that the installation and positioning of the hollow cup coil 202 are facilitated, the bottom surface of the annular groove structure 1122 is connected with the inner side surface of the second annular positioning table 112, and the inner wall of the hollow cup coil 202 can be arranged to protrude the inner side surface of the second annular positioning table 112, so that sufficient movable space is reserved for deformation of the hollow cup coil 202 after the hollow cup coil 202 is extruded by the mandrel structure 3.

As shown in fig. 4, in some embodiments, the inner diameter of the sprue 22 is larger than the outer diameter of the mandrel structures 3, so that excess mandrel structures 3 can protrude above the upper die platform 1 through the sprue 22, further accommodating motor stator assemblies 200 of different heights.

In some specific embodiments, the coil sheath 4 includes an annular bottom plate 41 and an annular side plate 42 connected to the upper side of the annular bottom plate 41, after installation, the bottom surface of the annular bottom plate 41 is fixedly connected with the top surface of the stator core 201, the outer wall of the annular side plate 42 is abutted against the upper die platform 2, in this embodiment, the annular side plate 42 is limited in the second positioning groove 21, the upper ends of the coreless coil 202 and the core rod structure 3 can extend into the middle hole of the annular bottom plate 41, and after the filling liquid is introduced through the filling opening 22, the filling liquid can flow into the expansion gap a from the middle hole of the annular bottom plate 41. The inner side wall of the annular bottom plate 41 is flush or basically flush with the inner side wall of the stator core 201, so that the core rod structure 3 can be fully expanded, and meanwhile, the wire outlet end of the hollow cup coil 202 is prevented from being damaged and broken, and the distance between the basically flush and the mutually flush is-2 mm. The inside wall of annular bottom plate 41 can laminate with the outside wall of hollow cup coil 202, further prevents the impaired rupture of wire outlet end of hollow cup coil 202, and optionally, the top surface of hollow cup coil 202 is basically flush with the top surface of annular bottom plate 41, and the top surface of hollow cup coil 202 and the top surface of annular bottom plate 41 are located the coplanar basically to the height of spacing hollow cup coil 202 of being convenient for. The top surface of the core rod structure 3 is higher than the top surface of the hollow cup coil 202, so that the whole hollow cup coil 202 can be fully extruded after the core rod structure 3 is expanded. The coil sheath 4 is made of insulating materials, the coil sheath 4 is made of teflon materials, the coil sheath is non-adhesive, demolding is convenient, and in other embodiments, the coil sheath 4 can also be made of other insulating materials such as PE, PP, PA and the like, so that the insulativity of the processing device 100 and the safety in the processing process are improved. After demolding, the coil sheath 4 and the motor stator assembly 200 can be separated as a whole relative bottom die platform 1, an upper die platform 2 and a core rod structure 3, demolding is convenient, and the coil sheath 4 and the motor stator assembly 200 can also be directly assembled on a motor as a whole, at this time, the coil sheath 4 is directly used as an insulating sheet of the motor stator assembly 200, and assembling is convenient.

In some embodiments, the annular side plate 42 extends upwards from the outer periphery of the annular bottom plate 41, the outer side wall of the annular side plate 42 and the outer side wall of the top end of the stator core 201 are propped against the inner side wall of the second positioning groove 21, the top surface of the annular side plate 42 is propped against the top wall of the second positioning groove 21, the structure is compact, the connection is tight, the filling liquid is not easy to leak out of the outer periphery, in addition, the inner side wall of the annular side plate 42 and the top surface of the annular bottom plate 41 are enclosed to form a terrace, redundant filling liquid can be temporarily stored on the terrace, and the situation that the filling liquid flows out of the upper die terrace 2 is avoided, so that the cleaning and the processing are convenient.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.

Claims (10)

1. A processingequipment for motor stator module, its characterized in that includes die block platform, goes up die block platform and plug structure, wherein:

the upper die platform is arranged above the bottom die platform and is detachably connected with the bottom die platform through a first locking piece, the core rod structure is arranged along the axial direction of the bottom die platform and is detachably connected with the bottom die platform through a second locking piece, and the upper die platform is provided with an injection port in a penetrating way, wherein the injection port can be used for introducing filling and sealing liquid;

after the motor stator assembly is arranged on the processing device, the motor stator assembly is sleeved outside the mandrel structure and clamped between the bottom die platform and the upper die platform, the injection port is communicated with the inner wall of the motor stator assembly, and the mandrel structure can extrude the inner wall of the motor stator assembly outwards after being heated and expanded.

2. The processing apparatus according to claim 1, wherein: the core rod structure is provided with a third channel from the bottom surface to the upper recess, a fourth channel which is correspondingly arranged with the third channel is arranged on the bottom die platform in a penetrating mode, and the upper end of the second locking piece can sequentially extend into the fourth channel and the third channel and is connected with the third channel.

3. The processing apparatus according to claim 2, wherein: the second locking piece comprises a second locking rod part and a second locking head part connected with the lower end of the second locking rod part, the outer diameter of the second locking head part is larger than that of the second locking rod part, after the second locking piece is installed, the upper end of the second locking rod part sequentially stretches into the fourth channel and the third channel and is connected with the third channel, and the top surface of the second locking head part is abutted against the bottom die platform.

4. A processing apparatus according to claim 3, wherein: the bottom die platform is provided with a sinking groove from the bottom surface to the upper side, the second locking head is arranged in the sinking groove after installation, the top surface of the second locking head is propped against the top wall of the sinking groove, and the bottom surface of the second locking head is not lower than the bottom surface of the bottom die platform.

5. The processing apparatus according to claim 4, wherein: the bottom die platform is provided with a first channel which is used for being connected with the lower end of the first locking piece, the first channel is arranged outside the fourth channel and is parallel to the fourth channel, the upper die platform is provided with a second channel which is used for being connected with the upper end of the first locking piece, and the second channel is arranged outside the injection opening;

the first passageway is from the top surface undercut setting of die block platform, the second passageway runs through the setting of last mould platform, first retaining member includes first locking lever portion and the first locking head that links to each other with first locking lever portion upper end, the external diameter of first locking head is greater than the external diameter of first locking lever portion, after the installation the lower extreme of first locking lever portion stretches into in proper order in second passageway and the first passageway and is connected with first passageway, the bottom surface of first locking head offsets with the top surface of last mould platform.

6. The processing apparatus according to claim 5, wherein: the lower end of the first locking rod part is in threaded connection with the first channel, and the upper end of the second locking rod part is in threaded connection with the third channel.

7. The processing apparatus according to claim 6, wherein: the bottom die comprises a bottom die platform, a bottom die and a bottom die, wherein a first positioning groove is formed in the upper side of the bottom die platform, a first annular positioning table and a second annular positioning table which are coaxially arranged with a fourth channel are arranged on the bottom wall of the first positioning groove, the inner diameter of the second annular positioning table is larger than that of the first annular positioning table, and the height of the second annular positioning table is higher than that of the first annular positioning table;

the lower side of the upper die platform is provided with a second positioning groove which is coaxially arranged with the injection port, the inner diameter of the second positioning groove is larger than that of the injection port, and the second positioning groove is communicated with the injection port;

after installation, the bottom end of the motor stator assembly is limited on the inner side wall of the first positioning groove and is arranged on the second annular positioning table, the top end of the motor stator assembly is limited on the inner side wall of the second positioning groove, the bottom end of the core rod structure is limited on the inner side wall of the second annular positioning table and is arranged on the first annular positioning table, and the first annular positioning table is clamped between the second locking head and the core rod structure.

8. The processing apparatus according to claim 7, wherein: the core rod structure is made of non-adhesive materials, a plurality of first locking pieces are arranged, the plurality of first locking pieces are circumferentially arranged along the core rod structure, a plurality of first channels are circumferentially arranged along the first positioning groove, and a plurality of second channels are circumferentially arranged along the second positioning groove;

the first annular positioning table is provided with a first annular sealing ring, the first annular positioning table is downwards sunken from the top surface of the first annular positioning table to form a first annular groove for installing the first annular sealing ring, and the top surface of the first annular sealing ring can prop against the bottom surface of the core rod structure after installation;

the motor stator assembly comprises a motor stator assembly, a motor stator assembly and a motor stator assembly, wherein the motor stator assembly is characterized in that a first annular positioning table is arranged on the motor stator assembly, a first annular groove is formed in the motor stator assembly, and a first annular groove is formed in the motor stator assembly.

9. A processing device according to any one of claims 1-8, characterized in that: the motor stator assembly comprises a stator core and a hollow cup coil sleeved on the inner side of the stator core, wherein an outlet end of the hollow cup coil is positioned at the upper end of the hollow cup coil, a coil sheath for protecting an outlet end of the hollow cup coil is further arranged between the stator core and an upper die platform, the upper end of the stator core can be fixedly connected with the coil sheath, an expansion gap is formed between a core rod structure and the inner side wall of the hollow cup coil, the expansion gap is communicated with an injection port, and the core rod structure can extrude the hollow cup coil to be attached to the inner side wall of the stator core after being heated and expanded.

10. The processing apparatus according to claim 9, wherein: the inner diameter of the injection port is larger than the outer diameter of the core rod structure, and the core rod structure can extend out to the upper part of the injection port;

the coil sheath comprises an annular bottom plate and an annular side plate connected to the upper side of the annular bottom plate, after installation, the bottom surface of the annular bottom plate is fixedly connected with the top surface of the stator core, the outer wall of the annular side plate is abutted to the upper die platform, the inner side wall of the annular bottom plate is flush with or basically flush with the inner side wall of the stator core, the inner side wall of the annular bottom plate can be attached to the outer side wall of the hollow cup coil, and the top surface of the core rod structure is higher than the top surface of the hollow cup coil.