CN109888988B - Iron core round splicing component used in stator round splicing equipment - Google Patents

Iron core round splicing component used in stator round splicing equipment Download PDF

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Publication number
CN109888988B
CN109888988B CN201910039491.3A CN201910039491A CN109888988B CN 109888988 B CN109888988 B CN 109888988B CN 201910039491 A CN201910039491 A CN 201910039491A CN 109888988 B CN109888988 B CN 109888988B
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outer diameter
pressure
diameter control
control feedback
pressure head
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CN109888988A (en
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刘冬
钱巍
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Nanjing Estun Automation Co Ltd
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Nanjing Estun Automation Co Ltd
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Priority to CN201910039491.3A priority Critical patent/CN109888988B/en
Priority to PCT/CN2019/087248 priority patent/WO2020147225A1/en
Publication of CN109888988A publication Critical patent/CN109888988A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

The invention discloses an iron core round splicing component used in stator round splicing equipment, which comprises a base, a valve body core rod, a core rod pressure cover and a plurality of iron core round splicing components, wherein the iron core round splicing component comprises an inner diameter control feedback pressure head, an outer diameter control pressure cylinder, an outer diameter size feedback pressure piston rod, an outer diameter control feedback pressure head, a piston pressure cover plate, an iron core axial compression piston and two length sensors. The stator rounding device has the advantages that the stator rounding device is applied to the stator rounding device, so that the whole process of the stator rounding device is convenient and simple to operate, the yield and consistency of iron core rounding are improved, and the stable performance and the improvement of the production efficiency of the motor are ensured; meanwhile, the equipment can be flexibly and quickly replaced according to the quantity and the size change of the motor iron cores, and the yield and the production efficiency are greatly improved.

Description

Iron core round splicing component used in stator round splicing equipment
Technical Field
The invention relates to an iron core rounding component used in stator rounding equipment.
Background
In the existing servo motor industry, a large number of centralized winding stators are applied; in order to more conveniently realize the stator scheme of the concentrated winding, most concentrated winding stators adopt a scheme of uniformly dividing the whole stator core into N single-group winding coil cores for assembly and combination. The scheme greatly improves the winding efficiency of the stator and controls the difficulty.
Due to the introduction of the scheme in the motor manufacturing process, the primary problem is how to ensure that the overall critical control dimensions such as the inner diameter, the outer diameter, the cylindricity and the like of the single-group winding coil iron core meet the requirement of the stator iron core after the single-group winding coil iron core is spliced into the overall stator iron core; various manufacturers have also created numerous assembly tools and equipment for this purpose. After long-time use and verification of tools and equipment in industry, various uncontrollable factors and constraints are found, for example: when the scheme of combining the HALF structure with the core rod is adopted, the over-constraint of the core rod and the HALF structure size to the actual core is often generated, the core rounding binding force cannot be well controlled, and the core cylindricity is poor or the core is cracked after welding. And the round tooling only controlling the outer diameter of the iron core is arranged, so that the final effect of the iron core splicing needs better iron core die stamping quality assurance, and once the consistency of the iron core changes in a large range, the final result of the splicing round is greatly influenced. The tools have the problems of poor interchangeability, incapability of being universal and the like.
Aiming at the phenomenon, the stator rounding equipment of the centralized winding servo motor is designed, which can be flexibly and quickly replaced according to the quantity and size change of motor cores, and greatly improves the yield and the production efficiency, and mainly comprises a base, a valve body core rod, a core rod pressure cover and a plurality of core rounding components. One end of the valve body core rod is vertically inserted into the base and fixed, the core rod pressure cover is arranged on the end part of the other end of the valve body core rod, and the plurality of iron core round-splicing components are all arranged along the circumference of the valve body core rod and are partially inserted into the valve body core rod.
In order to realize flexible and quick replacement according to the quantity and the size change of motor cores, the yield and the production efficiency are greatly improved, and the design of the iron core round-splicing component meeting the requirement of stator round-splicing equipment of a centralized winding servo motor is a technical problem which needs to be solved urgently.
Disclosure of Invention
The invention aims to provide an iron core rounding component which meets the requirements of stator rounding equipment of a centralized winding servo motor.
In order to solve the technical problems, the invention adopts the following technical scheme:
an iron core round assembly used in a stator round assembly device comprises an inner diameter control feedback pressure head, an outer diameter control pressure cylinder, an outer diameter dimension feedback pressure piston rod, an outer diameter control feedback pressure head, a piston pressure cover plate and an iron core axial compression piston,
the outer diameter size feedback pressure piston rod is inserted into the outer diameter control pressure cylinder, both ends of the outer diameter size feedback pressure piston rod extend out of the outer diameter control pressure cylinder, and the outer diameter size feedback pressure piston rod and the outer diameter control pressure cylinder form a linkage pressure piston mechanism; a first outer diameter control pressure cylinder pressure medium inlet and a second outer diameter control pressure cylinder pressure medium inlet and outlet which are respectively communicated with the pressure cavity in the outer diameter control pressure cylinder are arranged on the cylinder body of the outer diameter control pressure cylinder, and the first outer diameter control pressure cylinder pressure medium inlet and outlet and the second outer diameter control pressure cylinder pressure medium inlet and outlet are connected with external pressure equipment for pressure medium inlet and outlet control to realize the outer diameter size of the iron core; one end of an outer diameter size feedback pressure piston rod is connected with an inner diameter control feedback pressure head, and the top of the outer diameter control pressure cylinder is connected with the outer diameter control feedback pressure head;
the bottom end of the outer diameter control feedback pressure head is slidably connected with the top end of the inner diameter control feedback pressure head, a pressure hole for the iron core to axially compress the piston to insert and form a pressure sealing cavity is concavely formed in the end face of the top end of the outer diameter control feedback pressure head, a first outer diameter control feedback pressure head pressure medium inlet and a second outer diameter control feedback pressure head pressure medium inlet are respectively formed in the outer diameter control feedback pressure head, the first outer diameter control feedback pressure head pressure medium inlet and outlet are communicated with the pressure hole at an orifice, and the second outer diameter control feedback pressure head pressure medium inlet and outlet are communicated with the pressure hole at the bottom of the orifice;
the iron core axial compression piston consists of a piston rod and two ends of a compression head, the bottom end of the piston rod is provided with a piston head which is matched with the pressure hole to form piston movement, a piston pressure cover plate is sleeved on the piston rod, and the compression head is arranged at the top end of the piston rod; the piston rod of the iron core axial compression piston is inserted into the pressure hole, the piston head forms a pressure sealing cavity in the pressure hole, and the piston pressure cover plate is fixed on the top end face of the outer diameter control feedback pressure head; the first outer diameter control feedback pressure head pressure medium inlet and outlet and the second outer diameter control feedback pressure head pressure medium inlet and outlet on the outer diameter control feedback pressure head are connected with external pressure equipment to carry out pressure control, so that the iron core axial compression piston can move up and down in a required range;
the inner diameter control feedback pressure head comprises a pressure head body and a slot piston rod, the slot piston rod is vertically arranged at one end part of the pressure head body through a vertical rod, and the slot piston rod is inserted into the stator rounding equipment.
The technical scheme of the invention is improved, the iron core round assembly part further comprises a distance size sensor, an inner diameter radial size sensor and two length sensors, wherein a transmitting end in the distance size sensor is arranged at the other end of the outer diameter feedback pressure piston rod or on the cylinder body of the outer diameter control pressure cylinder, and a receiving end in the distance size sensor is arranged at the cylinder body of the outer diameter control pressure cylinder or on the other end of the outer diameter feedback pressure piston rod; the transmitting end in the distance size sensor and the receiving end in the distance size sensor form a feedback pair;
the transmitting end of the inner diameter radial dimension sensor is arranged at the top of a slot piston rod of the inner diameter control feedback pressure head, the receiving end of the inner diameter radial dimension sensor is arranged on the stator rounding equipment, and the transmitting end of the inner diameter radial dimension sensor and the receiving end of the inner diameter radial dimension sensor form a feedback pair;
the two ends of the two length sensors are respectively provided with a connecting hole for inserting the coaxial pin, the connecting holes at one ends of the two length sensors are arranged on the end face of the top end of the outer diameter control feedback pressure head through the coaxial pin, and the connecting holes at the other ends of the two length sensors are respectively arranged on the end face of the top end of the outer diameter control feedback pressure head through the coaxial pin with the connecting holes at one ends of the length sensors in the adjacent iron core round assembly.
According to the improvement of the technical scheme, a base for inserting the coaxial pin is arranged on the end face of the top end of the outer diameter control feedback pressure head in a protruding mode.
According to the technical scheme, the top of the outer diameter control pressure cylinder is provided with the connecting bulge connected with the outer diameter control feedback pressure head, the bottom of the outer diameter control feedback pressure head is provided with the notch matched with the connecting bulge, and the connecting bulge is arranged in the notch and fixed.
According to the technical scheme, a sliding groove matched with the inner diameter control feedback pressure head for sliding is formed in the end face of the bottom end of the outer diameter control feedback pressure head, and a sliding protrusion matched with the sliding groove in the end face of the bottom end of the outer diameter control feedback pressure head is arranged on the upper end face of the other end of the pressure head body in the inner diameter control feedback pressure head in a protruding mode.
According to the technical scheme, one end of an outer diameter size feedback pressure piston rod is provided with a through T-shaped groove for clamping an inner diameter control feedback pressure head, the other end of a pressure head body in the inner diameter control feedback pressure head is vertically provided with a T-shaped block which is installed in a sliding fit with the T-shaped groove on the outer diameter size feedback pressure piston rod, and the T-shaped block is installed in the T-shaped groove and connected through an elastic pin.
Compared with the prior art, the invention has the advantages that:
the iron core round-splicing component is applied to stator round-splicing equipment, so that the whole process of the stator round-splicing equipment is convenient and simple to operate, the yield and consistency of iron core round-splicing are improved, and the stability of motor performance and the improvement of production efficiency are ensured; meanwhile, the equipment can be flexibly and quickly replaced according to the quantity and the size change of the motor iron cores, and the yield and the production efficiency are greatly improved.
Drawings
Fig. 1 is a schematic diagram of a motor stator core.
Fig. 2 is a schematic view of a single set of cores.
Fig. 3 is a schematic diagram of the overall installation of core rounding components for use in a stator rounding apparatus.
FIG. 4 is an assembly view of a single core rounding component, base, valve body core pin and core pin pressure cap.
Fig. 5 is a cross-sectional view of fig. 4.
Fig. 6 is an enlarged view at a in fig. 5.
Fig. 7 is a schematic view of a base.
FIG. 8 is a schematic view of a valve body core rod.
FIG. 9 is a schematic illustration of a mandrel pressure cap.
Fig. 10 is a schematic view of an outer diameter control pressure cylinder.
FIG. 11 is a schematic illustration of an outside diameter feedback pressure piston rod.
Fig. 12 is a schematic diagram of an outer diameter control feedback ram.
Fig. 13 is a schematic view of an iron core axial compression piston.
Fig. 14 is a schematic view of a piston pressure cover plate.
FIG. 15 is a schematic diagram of an inside diameter control feedback ram.
Fig. 16 is a schematic view of a length sensor.
Detailed Description
In order to make the contents of the present invention more comprehensible, the present invention is further described with reference to fig. 1 to 16 and the detailed description below.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Examples
As shown in fig. 1, a stator rounding device of a centralized winding servo motor mentioned in the background art comprises a base 4, a valve core rod 2, a core rod pressure cover 1 and a plurality of core rounding components, wherein one end of the valve core rod 2 is vertically inserted into the base 4 and fixed, the core rod pressure cover 1 is arranged on the end part of the other end of the valve core rod 2, and the plurality of core rounding components are all arranged along the circumferential direction of the valve core rod 2 and are partially inserted into the valve core rod 2.
In this embodiment, the stator core of the motor is split into twelve single-group cores 19, so twelve core-rounding components are used in this embodiment.
As shown in fig. 4, 5 and 7, a first slot 4-1 for inserting the valve core rod 2 is provided at the central axis position of the upper portion of the base 4, and a through air cavity 4-2 is provided at the bottom of the first slot. In this embodiment, the lower part of the base 4 is arranged on an external pressure device, and the air cavity is subjected to negative pressure pumping operation by the external pressure device, so that the air cavity forms a negative pressure cavity, and the valve core rod 2 is fixed on the base 4.
As shown in fig. 6 and 8, the valve body core rod 2 comprises a mounting shaft inserted into the base 4 and a connecting shaft integrally formed with the mounting shaft, wherein a plurality of positioning slots 2-1 respectively inserted into the core round assembly parts are arranged at the upper part of the connecting shaft along the axial direction from the upper end surface, and the plurality of positioning slots 2-1 are uniformly distributed along the peripheral direction of the connecting shaft; the iron core round splicing component is inserted into the positioning slot 2-1 and sealed to form an independent valve body core rod first pressure cavity 2-3 and a valve body core rod second pressure cavity 2-4; a first valve body core rod pressure medium inlet and outlet channel 2-2 corresponding to the positioning slot 2-1 is arranged on the upper end surface of the connecting shaft along the axial direction, and the first valve body core rod pressure medium inlet and outlet channel 2-2 is communicated with a valve body core rod first pressure cavity 2-3 at the bottom of the positioning slot 2-1; the lower end face of the connecting shaft is provided with a second valve body core rod pressure medium inlet and outlet channel 2-5 which corresponds to the positioning slot 2-1 respectively along the axial direction, and the second valve body core rod pressure medium inlet and outlet channel 2-5 is communicated with a valve body core rod second pressure cavity 2-4 at the bottom of the positioning slot 2-1.
As shown in fig. 8, twelve positioning slots 2-1 are provided on the valve core rod 2 corresponding to twelve single-group cores 19 in the present embodiment. Meanwhile, the valve body core rod 2 in the embodiment adopts a casting process in the prior art to mold the positioning slot 2-1, the first valve body core rod pressure medium inlet and outlet channel 2-2 and the second valve body core rod pressure medium inlet and outlet channel 2-5 at one time.
As shown in fig. 9, a mandrel pressure cover 1 is sealed on the upper end surface of a connecting shaft, mandrel pressure cover medium inlets 1-1 are respectively arranged on the mandrel pressure cover 1 corresponding to first valve body mandrel pressure medium inlet and outlet passages 2-2, and the mandrel pressure cover medium inlets 1-1 are respectively communicated with the first valve body mandrel pressure medium inlet and outlet passages 2-2; the edge of the back of the mandrel pressure cover 1 is provided with a convex block 1-2 which is clamped with the connecting shaft in a convex way, and the edge of the upper end of the connecting shaft is provided with a caulking groove 2-6 which is clamped with the convex block 1-2 in a concave way.
The mandrel pressure cover 1 in this embodiment adopts a casting process in the prior art to mold the mandrel pressure cover medium inlet 1-1 and the bump 1-2 at one time.
As shown in fig. 4 and 5, the core rounding component comprises an inner diameter control feedback ram 5, an outer diameter control pressure cylinder 8, an outer diameter dimension feedback pressure piston rod 10, an outer diameter control feedback ram 12, a piston pressure cover 15 and a core axial compression piston 18.
As shown in fig. 4, 5, 10 and 11, an outside diameter feedback pressure piston rod 10 is inserted into the outside diameter control pressure cylinder 8, and both ends of the outside diameter feedback pressure piston rod 10 extend out of the outside diameter control pressure cylinder 8, and the outside diameter feedback pressure piston rod 10 and the outside diameter control pressure cylinder 8 form a linkage pressure piston mechanism; a first outer diameter control pressure cylinder pressure medium inlet and outlet 7 and a second outer diameter control pressure cylinder pressure medium inlet and outlet 9 which are respectively communicated with the pressure cavity in the outer diameter control pressure cylinder 8 are arranged on the cylinder body of the outer diameter control pressure cylinder 8, and the first outer diameter control pressure cylinder pressure medium inlet and outlet 7 and the second outer diameter control pressure cylinder pressure medium inlet and outlet 9 are connected with external pressure equipment for pressure medium inlet and outlet control to realize the outer diameter size of the iron core; the other end of the outer diameter feedback pressure piston rod 10 is provided with a through T-shaped groove 10-1 for clamping the inner diameter control feedback pressure head 5, and the top of the outer diameter control pressure cylinder 8 is provided with a connecting bulge 8-1 connected with the outer diameter control feedback pressure head 12.
As shown in fig. 12, a notch 12-1 which is matched with the connection protrusion 8-1 is formed at the bottom of the outer diameter control feedback pressure head 12, the connection protrusion 8 is installed in the notch 12-1 and fixed, a sliding groove 12-2 which is matched with the inner diameter control feedback pressure head 5 to slide is formed on the end surface of the bottom end of the outer diameter control feedback pressure head 12, a pressure hole 12-3 for inserting an iron core axial compression piston 18 into and forming a pressure sealing cavity is formed on the end surface of the top end of the outer diameter control feedback pressure head 12 in a concave manner, a first outer diameter control feedback pressure head pressure medium inlet and outlet 14 and a second outer diameter control feedback pressure medium inlet and outlet 13 are respectively formed on the outer diameter control feedback pressure head 12, the first outer diameter control feedback pressure medium inlet and outlet 14 is communicated with the pressure hole 12-3 at the orifice, and the second outer diameter control feedback pressure medium inlet and outlet 13 is communicated with the pressure hole 12-3 at the hole bottom.
As shown in fig. 13 and 14, the core axial compression piston 18 is composed of a piston rod 18-1 and two ends of a compression head 18-2, a piston head 18-3 which is matched with a pressure hole 12-3 to form piston movement is arranged at the bottom end of the piston rod 18-1, a piston pressure cover plate 15 is sleeved on the piston rod 18-1, and then the compression head 18-2 is welded at the top end of the piston rod 18-1; the piston rod 18-1 of the iron core axial compression piston 18 is inserted into the pressure hole 12-3, the piston head 18-3 forms a pressure sealing cavity in the pressure hole 12-3, and the piston pressure cover plate 15 is fixed on the top end face of the outer diameter control feedback pressure head 12; the first outer diameter control feedback pressure medium inlet and outlet 14 and the second outer diameter control feedback pressure medium inlet and outlet 13 on the outer diameter control feedback pressure head 12 are connected with external pressure equipment to perform pressure control, so that the iron core axial compression piston 18 can perform up-and-down piston movement within a required range.
As shown in fig. 15, the inside diameter control feedback ram 5 is composed of a ram body 5-1 and a slot piston rod 5-2 inserted into a positioning slot 2-1 on a valve body core rod 2 and sealed to form an independent valve body core rod first pressure cavity 2-3 and a valve body core rod second pressure cavity 2-4, the slot piston rod 5-2 is vertically arranged at one end of the ram body 5-1 through a vertical rod 5-3, a T-shaped block 5-4 which is installed in sliding fit with a T-shaped groove 10-1 on an outside diameter size feedback pressure piston rod 10 is vertically arranged at the other end of the ram body 5-1, and the T-shaped block 5-4 is installed in the T-shaped groove 10-1 and connected through an elastic pin 6; a sliding protrusion 5-5 which is in sliding fit with a sliding groove 12-2 on the end surface of the bottom end of the outer diameter control feedback pressure head 12 is arranged on the upper end surface of the other end of the pressure head body 5-1 in a protruding manner; the slot piston rod 5-2 is inserted into the positioning slot 2-1, a valve body core rod first pressure cavity 2-3 is formed between one side surface of the slot piston rod 5-2 and the slot wall of the positioning slot 2-1 in a sealing mode, and a valve body core rod second pressure cavity 2-4 is formed between the other side surface of the slot piston rod 5-2 and the slot wall of the positioning slot 2-1 in a sealing mode.
As shown in fig. 4 and 5, when the outer diameter feedback pressure piston rod 10 drives the inner diameter feedback pressure head 5 to move, the sliding protrusion 5-5 on the inner diameter feedback pressure head 5 can slide radially in the sliding groove 12-2 on the bottom end face of the outer diameter feedback pressure head 12.
As shown in fig. 4 and 5, after the inner diameter control feedback ram 5 and the outer diameter control feedback ram 12 are assembled, a space for accommodating a single set of core pieces 19 is formed between one side of the outer diameter control feedback ram 12 and a vertical rod 5-3 on the inner diameter control feedback ram 5, one side of the outer diameter control feedback ram 12 is set to be a core outer diameter profile surface matching the outer diameter surface of the single set of cores 19, and one side of the vertical rod 5-3 is set to be a core inner diameter profile surface matching the inner diameter surface of the single set of cores 19. After the single-group iron cores 19 are assembled, the outer diameter surfaces of the single-group iron cores 19 are tightly attached to the iron core outer diameter profiling surfaces of the outer diameter control feedback pressure head 12, and the compaction heads 18-2 arranged on the iron core axial compaction pistons 18 in the outer diameter control feedback pressure head 12 are attached to the single-group iron cores 19.
The embodiment is used in iron core round-splicing components in stator round-splicing equipment, length sensors 17 in each iron core round-splicing component are installed at two ends of a coaxial pin 16 in an end-to-end mode to form a freely movable high-precision hinge mechanism, meanwhile, bases 12-4 for inserting coaxial pins 16 are arranged on the top end face of an outer diameter control feedback pressure head 12 in a protruding mode, and each piece of the hinge mechanism is inserted into the bases 12-4 on the top end face of the outer diameter control feedback pressure head 12 through the coaxial pins 16 to be fixed.
As shown in fig. 4, the core-rounding component further includes a distance dimension sensor 11, an inner diameter radial dimension sensor 20, and two lengths 17, a transmitting end in the distance dimension sensor 11 is disposed on one end of the outer diameter dimension feedback pressure piston rod 10, and a receiving end in the distance dimension sensor 11 is disposed on the cylinder body of the outer diameter control pressure cylinder 8; the transmitting end and the receiving end in the distance dimension sensor 11 can be installed in the same way. The transmitting end in the distance dimension sensor 11 and the receiving end in the distance dimension sensor 11 form a feedback pair. The distance dimension sensor 11 may feed back in real time the outer diameter dimension feedback the exact distance of the pressure piston rod 10 with respect to the outer diameter control cylinder 8. The distance size sensor 11 in the present embodiment is an outsourcing piece, the distance size sensor 11 is applied as a conventional application in the prior art and the controller involved in the process is the prior art, and therefore, the control process will not be described in detail in the present embodiment.
The transmitting end of the inner diameter radial dimension sensor 20 is mounted on the top of the slot piston rod 5-2 of the inner diameter control feedback pressure head 5, the receiving end of the inner diameter radial dimension sensor 20 is mounted in the mounting groove 1-3 arranged on the outer peripheral surface of the core rod pressure cover 1, and the transmitting end of the inner diameter radial dimension sensor 20 and the receiving end of the inner diameter radial dimension sensor 20 form a feedback pair. The inner diameter radial dimension sensor 20 can feed back the dimensional position change of the inner diameter feedback ram 5 in the inner diameter direction in real time. The inside diameter radial dimension sensor 20 in the present embodiment is an outsourcing part, the application of the inside diameter radial dimension sensor 20 is a conventional application in the prior art and the controller involved in the process is a prior art, and thus, the control process will not be described in detail in the present embodiment.
As shown in fig. 4 and 16, both ends of the two length sensors 17 are provided with connection holes 17-1 for inserting the coaxial pins 16, the connection holes 17-1 of one end of the two length sensors 17 are provided on the top end face of the outer diameter control feedback ram 12 through the coaxial pins 16, and the connection holes 17-1 of the other end of the two length sensors 17 are provided on the top end face of the outer diameter control feedback ram 12 through the coaxial pins 16, respectively, with the connection holes 17-1 of one end of the length sensor 17 in the adjacent core rounding part. The length sensors 17 in this embodiment are purchased externally, the application of two length sensors 17 is conventional in the prior art and the controllers involved in the process are conventional, and therefore, the control process will not be described in detail in this embodiment.
The working process of the stator rounding device of the centralized winding servo motor for motor rounding is as follows:
the stator rounding equipment of the centralized winding servo motor of the embodiment can be matched with an upper computer and pressure equipment in specific operation. The operation procedure of this embodiment: the installation shaft of the valve body core rod 2 is inserted into the first slot 4-1 of the base 4, and is connected with an external pressure equipment system through the air cavity 4-2 at the lower part of the base 4 to carry out negative pressure pumping operation, so that the valve body core rod 2 is firmly sucked into the first slot 4-1 of the base 4. And connecting the corresponding position size sensors to the upper computer, and connecting the pressure medium inlets and outlets to the pressure equipment.
As shown in fig. 3-5, the pressure medium is extruded from the second valve body core rod pressure medium inlet and outlet channel 2-5 below the valve body core rod 2 by controlling the core rod pressure cover medium inlet 1-1 at the upper part of the core rod pressure cover 1, so that the whole inner diameter control feedback pressure head 5 moves to a limit dead point in the outer diameter direction. The prepared single-group iron cores 19 are placed on the outer diameter control feedback pressure head 12 with the iron core outer diameter profiling structure one by one through automatic feeding equipment or manual work, so that the outer diameter surfaces of the single-group iron cores 19 are tightly attached to the iron core outer diameter profiling surfaces of the outer diameter control feedback pressure head 12.
The first outer diameter control feedback pressure head pressure medium inlet and outlet 14 is used for feeding pressure medium, the second outer diameter control feedback pressure head pressure medium inlet and outlet 13 is used for extruding pressure medium, so that the iron core on the outer diameter control feedback pressure head 12 moves downwards to axially compress the piston 18, the iron core end face of the single-group iron core 19 is compressed, and the compression force is controlled through pressure feedback.
The first outer diameter control pressure cylinder pressure medium inlet and outlet 7 on the outer diameter control pressure cylinder 8 is controlled to enter pressure medium, the second outer diameter control pressure cylinder pressure medium inlet and outlet 9 is controlled to extrude pressure medium, so that the outer diameter control feedback pressure head 12 drives the single-group iron core 19 to radially move towards the inner diameter control feedback pressure head 5 until the inner diameter profiling surface of the inner diameter control feedback pressure head 5 abuts against the inner diameter surface of the single-group iron core 19, and at the moment, the sensing pressure and the position size of the upper computer are monitored.
The second valve body core rod pressure medium inlet and outlet channel 2-5 below the valve body core rod 2 is controlled to enter pressure medium, the core rod pressure cover medium inlet 1-1 at the upper part of the core rod pressure cover 1 extrudes pressure medium, the feedback size of 12 groups of length sensors 17 is enabled to be consistent by finely adjusting the radial position size fed back by the inner diameter radial size sensor 20, and meanwhile the outer diameter size of the distance size sensor 11 is enabled to be consistent.
The outer diameter control pressure cylinder 8 is made to maintain pressure, the pressure medium is extruded through the core rod pressure cover medium inlet 1-1 at the upper part of the core rod pressure cover 1, meanwhile, the second valve body core rod pressure medium inlet and outlet channel 2-5 below the valve body core rod 2 is made to enter the pressure medium, the 12 groups of inner diameter control feedback pressure heads 5 are made to move uniformly and consistently towards the inner diameter shrinking direction, the feedback data change of the inner diameter control feedback pressure heads 5 is kept consistent synchronously until the 12 groups of iron cores are contacted with each other, at the moment, the outer diameter control pressure cylinder 8 and the valve body core rod 2 are made to change the feedback pressure value obviously, the radial position and the pressure of the outer diameter control feedback pressure head 12 are continuously retracted, the real-time result of the iron core rounding approach to the required state is made to meet the requirement, the valve body core rod 2 and the outer diameter control pressure cylinder 8 are made to maintain pressure simultaneously, and the upper computer records the chord length, the radial dimension, the coaxiality and the splicing pressure value of the relevant rounding.
Welding laser axially welds iron cores from top to bottom around the circumferential direction, extruding pressure medium through a core rod pressure cover medium inlet 1-1 at the upper part of a core rod pressure cover 1 after welding is finished, enabling a second valve body core rod pressure medium inlet and outlet channel 2-5 below a valve body core rod 2 to enter the pressure medium, enabling an inner diameter control feedback pressure head 5 to continuously move towards the inner diameter reducing direction, enabling a second outer diameter control pressure cylinder pressure medium inlet and outlet 9 on an outer diameter control pressure cylinder 8 to enter the pressure medium in synchronization with the inner diameter reducing direction, enabling an outer diameter dimension feedback pressure piston rod 10 and the inner diameter control feedback pressure head 5 to synchronously move towards the inner diameter reducing direction until the inner diameter control feedback pressure head 5 moves to an inner diameter limiting position.
The first outer diameter control feedback pressure head pressure medium inlet and outlet 14 on the outer diameter control feedback pressure head 12 extrudes pressure medium, the second outer diameter control feedback pressure head pressure medium inlet and outlet 13 enters pressure medium, the control iron core axial compression piston 18 moves upwards, the single-group iron core 19 is axially loosened, the second outer diameter control pressure cylinder pressure medium inlet and outlet 9 on the outer diameter control pressure cylinder 8 is operated to enter pressure medium, the first outer diameter control pressure cylinder pressure medium inlet and outlet 7 extrudes pressure medium, so that a certain gap is formed between the outer diameter profiling surface of the iron core on the outer diameter control feedback pressure head 12 and the outer diameter surface of the single-group iron core 19, and the welded iron core is taken out by an automatic material taking device or manually. The welding process of the whole iron core assembly circle is completed.
The stator rounding equipment of the centralized winding servo motor is convenient and simple to operate in the whole process, improves the yield and consistency of core rounding, and ensures stable motor performance and improved production efficiency.
The stator rounding equipment of the centralized winding servo motor can flexibly and quickly replace iron core rounding components according to the quantity and the size change of motor iron cores, and the yield and the production efficiency are greatly improved.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
The invention is not related in part to the same or implemented in part by the prior art.

Claims (6)

1. An iron core round splicing component used in stator round splicing equipment is characterized by comprising an inner diameter control feedback pressure head (5), an outer diameter control pressure cylinder (8), an outer diameter size feedback pressure piston rod (10), an outer diameter control feedback pressure head (12), a piston pressure cover plate (15) and an iron core axial compression piston (18),
an outer diameter size feedback pressure piston rod (10) is inserted into the outer diameter control pressure cylinder (8), both ends of the outer diameter size feedback pressure piston rod (10) extend out of the outer diameter control pressure cylinder (8), and the outer diameter size feedback pressure piston rod (10) and the outer diameter control pressure cylinder (8) form a linkage pressure piston mechanism; a first outer diameter control pressure cylinder pressure medium inlet and outlet (7) and a second outer diameter control pressure cylinder pressure medium inlet and outlet (9) which are respectively communicated with a pressure cavity in the outer diameter control pressure cylinder (8) are arranged on a cylinder body of the outer diameter control pressure cylinder (8), and the first outer diameter control pressure cylinder pressure medium inlet and outlet (7) and the second outer diameter control pressure cylinder pressure medium inlet and outlet (9) are connected with external pressure equipment to control pressure medium inlet and outlet so as to realize the outer diameter size of the iron core; one end of an outer diameter size feedback pressure piston rod (10) is connected with an inner diameter control feedback pressure head (5), and the top of an outer diameter control pressure cylinder (8) is connected with an outer diameter control feedback pressure head (12);
the bottom end of the outer diameter control feedback pressure head (12) is slidably connected with the top end of the inner diameter control feedback pressure head (5), a pressure hole (12-3) for an iron core axial compression piston (18) to be inserted into and form a pressure sealing cavity is concavely arranged on the top end surface of the outer diameter control feedback pressure head (12), a first outer diameter control feedback pressure head pressure medium inlet and outlet (14) and a second outer diameter control feedback pressure head pressure medium inlet and outlet (13) are respectively arranged on the outer diameter control feedback pressure head (12), the first outer diameter control feedback pressure head pressure medium inlet and outlet (14) is communicated with the pressure hole (12-3) at an orifice, and the second outer diameter control feedback pressure head pressure medium inlet and outlet (13) is communicated with the pressure hole (12-3) at the bottom of the orifice;
the iron core axial compression piston (18) is composed of a piston rod (18-1) and two ends of a compression head (18-2), a piston head (18-3) which is matched with a pressure hole (12-3) to form piston motion is arranged at the bottom end of the piston rod (18-1), a piston pressure cover plate (15) is sleeved on the piston rod (18-1), and then the compression head (18-2) is arranged at the top end of the piston rod (18-1); the piston rod (18-1) of the iron core axial compression piston (18) is inserted into the pressure hole (12-3), the piston head (18-3) forms a pressure sealing cavity in the pressure hole (12-3), and the piston pressure cover plate (15) is fixed on the top end face of the outer diameter control feedback pressure head (12); the first outer diameter control feedback pressure head pressure medium inlet and outlet (14) and the second outer diameter control feedback pressure head pressure medium inlet and outlet (13) on the outer diameter control feedback pressure head (12) are connected with external pressure equipment to carry out pressure control, so that the iron core axial compression piston (18) can move up and down in a required range;
the inner diameter control feedback pressure head (5) comprises a pressure head body (5-1) and a slot piston rod (5-2), the slot piston rod (5-2) is vertically arranged at one end part of the pressure head body (5-1) through a vertical rod (5-3), and the slot piston rod (5-2) is inserted into the stator rounding equipment.
2. The core rounding component for use in a stator rounding apparatus of claim 1, further comprising a distance dimension sensor (11), an inner diameter radial dimension sensor (20) and two length sensors (17), wherein a transmitting end in the distance dimension sensor (11) is provided on the other end of the outer diameter dimension feedback pressure piston rod (10) or on the cylinder body of the outer diameter control pressure cylinder (8), and a receiving end in the distance dimension sensor (11) is provided on the cylinder body of the outer diameter control pressure cylinder (8) or on the other end of the outer diameter dimension feedback pressure piston rod (10); the transmitting end in the distance size sensor (11) and the receiving end in the distance size sensor (11) form a feedback pair;
the transmitting end of the inner diameter radial dimension sensor (20) is arranged at the top of a slot piston rod (5-2) of the inner diameter control feedback pressure head (5), the receiving end of the inner diameter radial dimension sensor (20) is arranged on the stator rounding equipment, and the transmitting end of the inner diameter radial dimension sensor (20) and the receiving end of the inner diameter radial dimension sensor (20) form a feedback pair;
the two ends of the two length sensors (17) are respectively provided with a connecting hole (17-1) for inserting the coaxial pin (16), the connecting holes (17-1) at one end of the two length sensors (17) are arranged on the top end face of the outer diameter control feedback pressure head (12) through the coaxial pin (16), and the connecting holes (17-1) at the other end of the two length sensors (17) are respectively arranged on the top end face of the outer diameter control feedback pressure head (12) through the coaxial pin (16) with the connecting holes (17-1) at one end of the length sensors (17) in the adjacent iron core round assembly parts.
3. Core rounding element for use in a stator rounding apparatus according to claim 1, characterized in that a base (12-4) for inserting a coaxial pin (16) is provided protruding on the top end face of the outer diameter control feedback ram (12).
4. The core rounding component for use in a stator rounding apparatus according to claim 1, wherein a coupling protrusion (8-1) for coupling an outer diameter control feedback ram (12) is provided at the top of the outer diameter control cylinder (8), a notch (12-1) for fitting with the coupling protrusion (8-1) is provided at the bottom of the outer diameter control feedback ram (12), and the coupling protrusion (8-1) is fitted into the notch (12-1) and fixed.
5. The iron core rounding component used in the stator rounding equipment according to claim 1, characterized in that a sliding groove (12-2) which is matched and slides with the inner diameter control feedback pressure head (5) is arranged on the bottom end face of the outer diameter control feedback pressure head (12), and a sliding protrusion (5-5) which is matched and slides with the sliding groove (12-2) on the bottom end face of the outer diameter control feedback pressure head (12) is convexly arranged on the upper end face of the other end of the pressure head body (5-1) in the inner diameter control feedback pressure head (5).
6. The iron core rounding component used in the stator rounding equipment according to claim 1, characterized in that one end of the outer diameter size feedback pressure piston rod (10) is provided with a through T-shaped groove (10-1) for clamping the inner diameter control feedback pressure head (5), the other end of the pressure head body (5-1) in the inner diameter control feedback pressure head (5) is vertically provided with a T-shaped block (5-4) which is installed in a sliding fit with the T-shaped groove (10-1) on the outer diameter size feedback pressure piston rod (10), and the T-shaped block (5-4) is installed in the T-shaped groove (10-1) and connected through an elastic pin (6).
CN201910039491.3A 2019-01-16 2019-01-16 Iron core round splicing component used in stator round splicing equipment Active CN109888988B (en)

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PCT/CN2019/087248 WO2020147225A1 (en) 2019-01-16 2019-05-16 Iron core circle-splicing component used in stator circle-splicing apparatus

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CN109728689A (en) * 2019-01-16 2019-05-07 南京埃斯顿自动化股份有限公司 A kind of stator spelling circle equipment of centralization winding servo motor

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