CN106911232B - Pressing device and pressing method for armature commutator - Google Patents
Pressing device and pressing method for armature commutator Download PDFInfo
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- CN106911232B CN106911232B CN201710213005.6A CN201710213005A CN106911232B CN 106911232 B CN106911232 B CN 106911232B CN 201710213005 A CN201710213005 A CN 201710213005A CN 106911232 B CN106911232 B CN 106911232B
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- positioning ring
- iron core
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- 238000003825 pressing Methods 0.000 title claims abstract description 36
- 239000011265 semifinished product Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 57
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000000047 product Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
- H02K15/028—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots for fastening to casing or support, respectively to shaft or hub
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The pressing method of armature commutator includes limiting the lower end of the wire head of the twisted armature semi-finished product, radially expanding, pressing the commutator into the shaft of the armature semi-finished product, limiting the radially expanded wire head and radially extruding the wire head into the groove of the commutator. And simultaneously, a pressing device of the armature commutator is also provided. The invention has the advantages of good quality and high production efficiency of the produced products.
Description
Technical Field
The invention relates to a preparation device and a preparation method of a starter armature, in particular to a pressing device and a pressing method of an armature commutator.
Background
The starting motor consists of three parts of an electromagnetic switch, a direct current motor and a transmission mechanism, wherein the direct current motor consists of a front end cover, a rear end cover, a brush holder, a stator and an armature. The armature comprises a commutator 1, an iron core 2, a shaft 3 and copper leads 4 (winding leads). The part of the armature iron core, which is provided with the lead, realizes the conversion from electric energy to mechanical energy. The number of slots of the commutator is equal to that of the iron core pieces, the number of slots is from 13 to 37 slots, and different numbers of slots meet the requirements of different power outputs. The higher the armature slot filling rate (sum of sectional areas of wires and iron core slot area ratio) of the same volume is, the larger the motor output power is, and the flat wire has higher slot filling rate than the round wire, so that the armature adopting the flat wire design is more compact, the output performance is larger, and meanwhile, the manufacturing process is also challenged more. The armature, which runs at high speed in the motor, is the most critical component determining the reliability and life of the motor.
In the existing armature production process, the wires of the armature synchronously enter the grooves of the commutator in the process of being pressed into the shaft, and because the wires are influenced by various factors when the wires are twisted, the wires after the twisting are always in position and shape errors, so that the wires are not aligned with the grooves of the commutator, and therefore, when the commutator is pressed, the wires of the winding are not easy to be pressed into the grooves of the commutator, the wires are jacked and bent, the situation of pressing deflection and the like is caused due to deformation of the wires after the twisting of the winding, and the wires need to be reworked and even scrapped. One of the existing solutions is to widen the width of the commutator slot to facilitate the entry of the winding wire, but this tends to increase the contact resistance between the winding wire and the commutator, affect the welding fastness of the winding wire and the commutator, and reduce the quality of the armature; the second existing solution is that the wire of the winding after twisting is flared on special flaring equipment, then the commutator is pressed in on special press, finally the winding wire is pressed in the groove of the commutator on special necking machine, because the simultaneous pressing in can not be guaranteed in the process of pressing the wire in the groove of the commutator, the inconsistent contact resistance between each wire of the winding and the commutator can be generated, thereby reducing the quality of the armature.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a pressing method of an armature commutator, which can effectively ensure that a wire smoothly enters a commutator groove, greatly improve the production efficiency, reduce the manufacturing cost and ensure that the starter performance is more stable and reliable.
The invention also provides a pressing device of the armature commutator, through which the pressing method of the armature commutator can be better implemented, which can effectively ensure that the lead wire smoothly enters the commutator groove, greatly improve the production efficiency, reduce the manufacturing cost and ensure the starter performance to be more stable and reliable.
The invention solves the problems by adopting the following technical scheme: .
The pressing method of armature commutator includes limiting the lower end of the wire head of the twisted armature semi-finished product, radially expanding, pressing the commutator into the shaft of the armature semi-finished product, limiting the radially expanded wire head and radially extruding the wire head into the groove of the commutator.
The invention correspondingly provides a pressing device of the armature commutator, which comprises:
a main body, wherein a cylindrical vertical through hole capable of accommodating the iron core bushing and the iron core seat is arranged in the middle of the main body, and a transverse through hole is arranged at the lower part of the main body;
the iron core seat is arranged at the lower part of the cylindrical through hole of the main body, a cylindrical hole for accommodating a workpiece shaft is formed in the middle of the iron core seat, and the workpiece is axially fixed by inserting the workpiece shaft into the cylindrical hole;
the iron core seat guide sleeve comprises a main body with a through hole in the middle and an axial guide part with a hole wall, the axial guide part is fixed at the upper part of a cylindrical through hole of the main body, a part of the axial guide part is sleeved outside the iron core seat, and the axial guide part guides the iron core seat to move up and down;
the upper positioning ring is circumferentially provided with the same number of notches as the commutator, and the width of the positioning ring is slightly larger than that of the commutator, so that the workpiece lead can be limited in the notch and can easily move in the notch;
the lower positioning ring is circumferentially provided with notches with the same number and width as the commutator, the notches can accommodate workpiece wires, and the diameter of the notches is smaller than that of the notches of the upper positioning ring;
the upper part of the middle through hole of the necking ring is in a truncated cone shape with a big upper part and a small lower part, and the lower part is in a cylindrical shape;
the limiting sleeve is arranged between the lower part of the armature semi-finished copper guide wire and the iron core seat and is used for supporting the lower part of the armature semi-finished copper guide wire, so that the guide wire is not contacted with the top surface of the iron core seat, and the lower part of the guide wire is ensured not to be damaged by collision;
the head of the mouth-expanding tooth head is in a round table shape with a large upper part and a small lower part, long groove teeth with the same number and width as those of the reverser are circumferentially arranged on the round table, and correspond to the notches of the upper positioning ring, the lower positioning ring and the necking ring;
a commutator pressure head, wherein the commutator is pressed into the workpiece shaft by the commutator pressure head;
the commutator positioning assembly comprises a commutator positioning main body and a commutator positioning piece, a through hole capable of accommodating the commutator is formed in the middle of the commutator positioning assembly, the commutator positioning piece is arranged on the periphery of the through hole, and the commutator is axially guided by the commutator positioning piece after being placed into the through hole;
the height adjusting piece is arranged in the transverse through hole of the main body, supports the iron core seat and can change between two positions, wherein the height difference between the height of the height adjusting piece at the wire flaring position and the height difference between the height of the height adjusting piece at the wire extrusion position are equal to the travel of the wire head necking;
the lower section of the fixing piece is movably fixed on the body, the upper positioning ring, the lower positioning ring and the necking ring are sequentially arranged on the body from top to bottom, and the upper section of the fixing piece movably fixes the upper positioning ring and the lower positioning ring; the upper positioning ring is also fixed by the upper section of the fixing piece after being replaced by the commutator positioning assembly.
Preferably, the main body is divided into a main body and a base, and the main body is fixed to the base, so that the manufacturing and the installation are easy.
Preferably, the core holder guide sleeve body and the axial guide portion are divided into two parts, which is easy to manufacture.
Preferably, the height adjusting member is a handle, which includes a hand-held portion and a rotating portion, the difference between the width and the height of the rotating part is equal to the travel of the necking of the head part of the lead, and the rotating part is arranged in the transverse through hole of the body and supports the iron core seat; thus, the handle rotating part can be conveniently rotated by the holding part to change the height of the rotating part.
Preferably, the commutator positioning assembly is of a split structure and is divided into a commutator positioning ring, a commutator bushing and a commutator positioning guide bar, wherein the commutator positioning ring is internally provided with and fixes the commutator bushing, and the commutator positioning guide bar is fixed on the inner wall of the commutator bushing and axially positions the commutator; this is easy to manufacture and install.
Preferably, a height adjusting piece is further arranged between the body and the necking ring, the adjusting piece comprises an adjusting screw rod and a nut, the nut is fixed on the top surface of the body, the screw rod is screwed on the nut, and the height of the screw rod entering the nut is changed by rotating the screw rod, so that the height of the screw rod, namely the distance between the necking ring and the body, is adjusted, and the change of the height of the iron core is met.
Preferably, the outer peripheral surface of the body and the outer peripheral surface of the upper positioning ring, the lower positioning ring and the commutator positioning assembly are provided with vertical fixing grooves, and the fixing piece is arranged on the vertical fixing grooves and movably fixed.
Preferably, the two fixing parts are symmetrically distributed along the circumferential direction, and the two fixing parts are guide rails with different width sizes, so that the uniqueness of the positions of the lower positioning ring, the upper positioning ring and the commutator positioning ring in use is ensured, and an error-proofing effect is achieved.
Better, the width of the rear section of the notch of the upper positioning ring is obviously larger than that of the notch of the commutator, so that the upper positioning ring is not blocked by a wire when the upper positioning ring is required to be taken out, and the upper positioning ring is easy to use.
More specifically, the pressing method of the armature commutator comprises the following steps:
(1) A height adjusting piece at the initial position is placed in the transverse through hole of the main body, the iron core seat is placed in the cylindrical through hole and supported by the height adjusting piece, the upper part of the iron core seat is sleeved in an iron core seat guide sleeve, and the iron core seat guide sleeve is fixed on the main body;
(2) The armature semi-finished product with the twisted head is put into an iron core seat guide sleeve, and a necking ring, a lower positioning ring and an upper positioning ring are sequentially fixed above a main body, so that the head of a lead of a component enters a notch of the upper positioning ring;
(3) The upper flaring tooth head is arranged, the starting driver presses down the flaring tooth head, the wire head is extruded from the notch of the upper positioning ring under the action force of the tooth part of the flaring tooth head, and the lower part of the wire enters the notch of the lower positioning ring;
(4) Taking out the mouth-expanding tooth head and the upper positioning ring, installing a commutator positioning assembly at the position of the upper positioning ring, putting a commutator into the commutator positioning assembly, putting a pressure head of a pressure changer on the commutator, starting a driver to press the pressure changer, reducing a height adjusting piece to another height, and simultaneously extruding a wire in a notch of the lower positioning ring into a notch of the commutator through a bevel of a necking ring;
(5) And then the workpiece is ejected from the height adjusting piece to the initial position.
The invention has the advantages that:
1. the invention completes the two-step actions of the commutator and the lead wire entering the commutator groove, and the lead wire is always positioned by the tooling, thereby eliminating the position and shape errors, ensuring good consistency of performance parameters during armature production, greatly reducing the reworking rate and greatly reducing the rejection rate.
2. Because the copper guide wire is pressed into the groove of the commutator under the accurate positioning of the lower positioning ring, the groove width of the commutator can be close to or the same as the width or diameter of the guide wire, the contact resistance between the guide wire and the commutator is reduced, the welding firmness is ensured, and the performance of the starter is ensured.
3. The wire is pressed into the commutator groove only through one necking ring, so that synchronous pressing is realized, and the problem of change of the commutator notch caused by asynchronous pressing of the wire is thoroughly solved.
4. Only one common press (an air press or an oil press) is used, so that the wires after the winding torsion head can enter the groove of the commutator smoothly at the same time, only one person is needed to operate, the production efficiency is greatly improved, the occupied area is saved, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic diagram of the armature work piece of the commutator to be pressed, and the commutator used in the invention.
Fig. 2 is an exploded view of the commutator device according to the embodiment of the present invention.
Fig. 3 is a schematic structural view of the commutator device according to the embodiment of the invention when conducting wire flaring.
Fig. 4 is a schematic structural view of the commutator device according to the embodiment of the present invention when the commutator is performed.
Fig. 5 is a schematic structural view of a commutator positioning assembly according to an embodiment of the invention.
Fig. 6 is a schematic view of the structure of the commutator according to the embodiment of the invention at the beginning.
Fig. 7 is a schematic diagram of a structure of the commutator according to an embodiment of the invention when the commutator wires are flared.
Fig. 8 is a state diagram of the starting of the commutator according to the embodiment of the present invention.
Fig. 9 is a state diagram of the completion of the commutator according to the embodiment of the present invention.
Fig. 10 is a state diagram of an embodiment of the present invention when the pressed commutator workpiece is withdrawn.
Fig. 11 is a view of the completed workpiece of the commutator according to the embodiment of the invention.
Fig. 12 is a diagram showing the positions of the wire and the upper retainer ring at the beginning of wire flaring in accordance with an embodiment of the present invention.
Fig. 13 is a diagram showing the positions of the wire and the lower retainer ring when the wire flaring is completed according to the embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The general shape of the armature workpiece 222, as shown in fig. 1, has a head 122 of copper wire 120, a core 123 with an opening 1231 in the middle, and a wire end 121 in the lower portion, requiring the commutator 114 to be pressed onto the shaft 124 and the head 122 wire positioned in the slot 1141 of the commutator 114.
As shown in fig. 2, 3 and 4, the pressing device of the armature commutator provided by the invention comprises the following components:
a bottom plate 1 supporting the body 2 and fixed to the body 2;
a body 2, the middle of which is provided with a cylindrical erection through hole 25 capable of accommodating the iron core bush 3 and the iron core seat 5, the lower part of which is provided with a transverse through hole 22, and the outer surface of which is provided with vertical fixing grooves 26 and 27;
the iron core bush 3 is placed in the upper part of the cylindrical through hole 25 of the body 2 and is fixed with the body 2 on the outer side by the bolt 21, and an opening 31 for guiding the iron core guide bar 4 is also arranged on the circumference of the inner side of the iron core bush 3;
the iron core guide bar 4 is divided into two parts, one part 41 is placed into the opening 31 of the iron core bushing 3, the other part 42 corresponds to the iron core opening and is placed in the opening 1231 of the iron core 123, and the iron core 123 is positioned circumferentially and guided axially;
the iron core seat 5 is arranged at the lower part of the cylindrical through hole 25 of the body 2, a cylindrical hole 51 for accommodating the shaft of the workpiece 222 is formed in the middle of the iron core seat 5, and the workpiece 222 is axially fixed by inserting the shaft of the workpiece 222 into the cylindrical hole 51;
the limiting sleeve 6 is arranged between the lower part 121 of the copper guide wire 120 of the workpiece 222 and the iron core seat 5, and supports the lower part 121 of the copper guide wire 120 of the workpiece 222 so as not to contact the plane 52 of the iron core seat 5, thereby ensuring that the end 121 of the copper guide wire 120 is not damaged;
a height adjustment handle 7 comprising a holding portion 72 and a rotating portion 71, the difference between the width 712 and the height 711 of the rotating portion 71 being equal to the stroke of necking the head 122 of the copper wire 120, the rotating portion 71 being disposed in the transverse through hole 22 of the body 2 and supporting the core print 5;
the necking ring 8, the middle through hole is: the upper part of the round table-shaped necking groove 81 capable of containing the lead is provided with a large upper part and a small lower part, the lower part of the round table-shaped necking groove is provided with a cylindrical hole 82, the round table-shaped necking groove 81 at the upper part can limit the flaring size of the end 122 of the copper lead 120, and the cylindrical hole 82 at the lower part can press the head 122 of the copper lead 120 after being expanded into the corresponding notch 1141 of the commutator 114 due to necking when the head 122 moves downwards;
the upper positioning ring 9 is circumferentially provided with the notches 91 which are the same as the commutator in number and have a slightly wider width, the width of the notches 91 is suitable for accommodating the copper conductors 120 of the workpiece 222, and the gaps are not large, so that the copper conductors 120 on the upper part can smoothly enter the notches 91 when the heads 122 of the copper conductors 120 of the workpiece 222 are flared, and the copper conductors 120 on the lower part are led into the lower positioning ring 10, so that the copper conductors 120 are prevented from being misplaced, as shown in fig. 12; in the embodiment, the width 92 of the rear section of the notch 91 is obviously larger than that of the commutator notch, so that the upper positioning ring 9 is conveniently taken out without being blocked by the copper wire 120 in the notch 91;
the lower retainer ring 10 is provided with slots 101 of the same number and width as the commutator slots, the slots 101 accommodating the copper conductors 120 of the workpiece 222, the lower positioning ring 10 accurately positions the head 122 of the copper wire 120 into the notch 101 of the lower positioning ring 10, see fig. 13, so as to ensure that the head 122 of the copper wire 120 accurately enters the notch 1141 of the commutator 114;
a commutator bushing 12 is arranged in the commutator positioning ring 11, the commutator positioning ring 11 is connected with the commutator bushing 12 at two side edge parts 111 and 112 through a connecting piece 113, the commutator positioning ring 11 fixes the commutator bushing 12, and the commutator bushing 12 axially positions the commutator;
a commutator positioning guide bar 13, wherein the commutator positioning guide bar 13 plays a role in circumferential positioning with a notch 1141 of the commutator 114;
the mouth-expanding tooth head 14, the mouth-expanding tooth head 14 is provided with a tooth part 142 corresponding to the notch 91 of the upper positioning ring 9, the tooth number of the mouth-expanding tooth head 14 is the same as the groove number of the commutator, the notch 91 joint of the upper positioning ring 9 performs preliminary guiding positioning, the head 122 of the copper guide wire 120 starts to be directly positioned in the notch 91 of the upper positioning ring 9, as shown in fig. 12, the mouth-expanding tooth head 14 tooth part 142 pushes the head 122 of the copper guide wire 120 into the notch 101 of the lower positioning ring 10 under the action of the pressing force, as shown in fig. 13, the mouth-expanding tooth head 14 degree 141 plays the role of flaring the head 122 of the copper guide wire 120 and is limited by the inclined surface 081 of the necking ring 8.
A commutator 114 is pressed into the shaft end 124 of the workpiece 222 by the commutator pressing head 15;
the upper parts of the guide rails 16 and 17 are respectively provided with limiting parts 163 and 173, the guide rails are respectively placed into vertical fixing grooves 26 and 27 on the outer surface of the body, notches 102 and 103 of the lower positioning ring 10, notches 92 and 93 of the upper positioning ring 9 and notches 114 and 115 of the commutator positioning ring 11, the lower positioning ring 10, the upper positioning ring 9 and the commutator positioning ring 11 are fixed with the body 2 through bolts 161, 162, 171 and 172, and the relative positions of the lower positioning ring 10, the upper positioning ring 9 and the commutator positioning ring 11 and the body 2 are accurately positioned through the limiting parts 163 and 173 of the guide rails 16 and 17;
the adjusting member 18 is further disposed on the body 2, the adjusting member 18 includes an adjusting screw 182 and a nut 181, the nut 181 is fixed on the top surface of the body 2, the screw 182 is screwed on the nut 181, see fig. 2, so that the height of the screw 182 entering the nut 181 is changed by rotating the screw 182, and the height of the screw 182, that is, the distance between the lower positioning ring 10 and the body 2 is adjusted, so as to satisfy the change of the height 1232 of the iron core 123, see fig. 6.
The width of the guide rail 16 is different from that of the guide rail 17, and the error proofing function is achieved.
The core bushing 3 and the core bar 4 may be integrated.
The commutator positioning ring 11, the commutator bushing 12 and the commutator positioning guide bar 13 form a commutator positioning assembly, as shown in fig. 5, and can be designed into a whole.
The pressing method of the armature commutator by using the pressing device of the commutator comprises the following steps:
(1) A rotating part 71 of a height adjusting handle 7 is placed in a transverse through hole 22 of the body 2, at this time, a part of a height 711 of the rotating part of the height adjusting handle is upwards, the iron core seat 5 is placed in a cylindrical through hole 25 and supported by the height adjusting handle 7, a limit sleeve 6 is placed at the upper part of the iron core seat 5 and is sleeved in an iron core seat guide sleeve 3, and the iron core seat guide sleeve 3 is fixed on the body 2 by a bolt 21, as shown in fig. 6;
(2) The armature semi-finished product 222 is put into the guide sleeve of the iron core seat, the necking ring 8, the lower positioning ring 10 and the upper positioning ring 9 are put in sequence under the limitation of the guide rail 16 and the guide rail 17 above the body 2, the guide rail 16 and the guide rail 17 are respectively put into the vertical fixing grooves 26 and 27 of the body 2 and fixed by bolts 161, 162, 171 and 172, and then the lead head 122 of the armature semi-finished product 222 enters the notch 91 of the upper positioning ring 9, as shown in fig. 6 and 12;
(3) The upper flaring tooth head 14 is arranged, a press (not shown in the drawing) is started to press down the flaring tooth head 14, and the wire head 122 is extruded from the notch 91 of the upper positioning ring under the action of the tooth part of the flaring tooth head and enters the notch 101 of the lower positioning ring 10, as shown in fig. 7 and 13;
(4) Taking out the mouth-expanding tooth head 14 and the upper positioning ring 9, installing a commutator positioning assembly at the position of the upper positioning ring, putting a commutator 114 in the commutator positioning assembly, putting a commutator pressing head 15 on the commutator 114, starting the press to press the commutator 114, enabling the commutator 114 to enter a workpiece shaft, turning a turning part 71 upwards by a hand-held part 72 through a height adjusting handle 7, starting the press again, and simultaneously extruding a lead 122 which expands a mouth into a notch 1141 of the commutator 114 through a cylindrical hole 82 of a necking ring in the downward moving process, wherein the drawing is shown in fig. 9;
(5) And then the rotating part of the height adjusting handle 7 is rotated to the position of the height 711 by the hand-holding part 72 of the height adjusting handle 7 to eject the workpiece 444 after the commutator 114 is pressed, as shown in fig. 10 and 11, so as to finish the commutator pressing work.
Claims (7)
1. The pressing method of the armature commutator is characterized in that: the method for pressing the armature commutator comprises the following steps of:
(1) A height adjusting piece at the initial position is placed in the transverse through hole of the main body, the iron core seat is placed in the cylindrical through hole and supported by the height adjusting piece, the upper part of the iron core seat is sleeved in an iron core seat guide sleeve, and the iron core seat guide sleeve is fixed on the main body;
(2) The armature semi-finished product with the twisted head is put into an iron core seat guide sleeve, and a necking ring, a lower positioning ring and an upper positioning ring are sequentially fixed above a main body, so that the head of a lead of a component enters a notch of the upper positioning ring;
(3) The upper flaring tooth head is arranged, the starting driver presses down the flaring tooth head, the wire head is extruded from the notch of the upper positioning ring under the action force of the tooth part of the flaring tooth head, and the lower part of the wire enters the notch of the lower positioning ring;
(4) Taking out the mouth-expanding tooth head and the upper positioning ring, installing a commutator positioning assembly at the position of the upper positioning ring, putting a commutator into the commutator positioning assembly, putting a pressure head of a pressure changer on the commutator, starting a driver to press the pressure changer, reducing a height adjusting piece to another height, and simultaneously extruding a wire in a notch of the lower positioning ring into a notch of the commutator through a bevel of a necking ring;
(5) And then the workpiece is ejected from the height adjusting piece to the initial position.
2. The device for pressing the armature commutator is characterized in that: comprising the following steps:
a main body, wherein a cylindrical vertical through hole capable of accommodating the iron core bushing and the iron core seat is arranged in the middle of the main body, and a transverse through hole is arranged at the lower part of the main body;
the iron core seat is arranged at the lower part of the cylindrical through hole of the main body, a cylindrical hole for accommodating a workpiece shaft is formed in the middle of the iron core seat, and the workpiece is axially fixed by inserting the workpiece shaft into the cylindrical hole;
the iron core seat guide sleeve comprises a main body with a through hole in the middle and an axial guide part with a hole wall, the axial guide part is fixed at the upper part of a cylindrical through hole of the main body, a part of the axial guide part is sleeved outside the iron core seat, and the axial guide part guides the iron core seat to move up and down;
the upper positioning ring is circumferentially provided with the same number of notches as the commutator, the width of the positioning ring is slightly larger than that of the commutator, and the notches can accommodate workpiece wires;
the lower positioning ring is circumferentially provided with notches with the same number and width as the commutator, the notches can accommodate workpiece wires, and the diameter of the notches is smaller than that of the notches of the upper positioning ring;
the upper part of the middle through hole of the necking ring is in a truncated cone shape with a big upper part and a small lower part, and the lower part is in a cylindrical shape;
the limiting sleeve is arranged between the lower part of the armature semi-finished product copper guide wire and the iron core seat and supports the lower part of the armature semi-finished product so that the guide wire is not contacted with the top surface of the iron core seat;
the head of the mouth-expanding tooth head is in a round table shape with a large upper part and a small lower part, long groove teeth with the same number and width as those of the reverser are circumferentially arranged on the round table, and correspond to the notches of the upper positioning ring, the lower positioning ring and the necking ring;
a commutator pressure head, wherein the commutator is pressed into the workpiece shaft by the commutator pressure head;
the commutator positioning assembly comprises a commutator positioning main body and a commutator positioning piece, a through hole capable of accommodating the commutator is formed in the middle of the commutator positioning assembly, the commutator positioning piece is arranged on the periphery of the through hole, and the commutator is axially guided by the commutator positioning piece after being placed into the through hole;
the height adjusting piece is arranged in the transverse through hole of the main body, supports the iron core seat and can change between two positions, wherein the height difference between the height of the height adjusting piece at the wire flaring position and the height difference between the height of the height adjusting piece at the wire extrusion position are equal to the travel of the wire head necking;
the lower section of the fixing piece is movably fixed on the body, the upper positioning ring, the lower positioning ring and the necking ring are sequentially arranged on the body from top to bottom, and the upper section of the fixing piece movably fixes the upper positioning ring and the lower positioning ring; the upper positioning ring is also fixed by the upper section of the fixing piece after being replaced by the commutator positioning assembly;
the main body can be divided into a body and a base, and the body is fixed on the base; the iron core seat guide sleeve main body and the axial guide part.
3. The pressing device of an armature commutator as defined in claim 2, wherein: the height adjusting piece is a handle and comprises a handheld part and a rotating part, the difference between the width and the height of the rotating part is equal to the travel of the necking of the head of the lead, and the rotating part is arranged in the transverse through hole of the body and supports the core seat.
4. The pressing device of an armature commutator as defined in claim 2, wherein: and a height adjusting piece is further arranged between the body and the necking ring and comprises an adjusting screw rod and a nut, the nut is fixed on the top surface of the body, and the screw rod is screwed on the nut.
5. The pressing device of an armature commutator according to claim 2, the method is characterized in that: the outer peripheral surface of the body, the upper positioning ring, the lower positioning ring and the outer peripheral surface of the commutator positioning assembly are provided with vertical fixing grooves, and the fixing piece is arranged on the vertical fixing grooves and movably fixed.
6. The pressing device of an armature commutator as defined in claim 2, wherein: the commutator positioning assembly is divided into a commutator positioning ring, a commutator bush and a commutator positioning guide bar, wherein the commutator positioning ring is internally provided with and fixes the commutator bush, and the commutator positioning guide bar is fixed on the inner wall of the commutator bush and axially positions the commutator.
7. The pressing device of an armature commutator as defined in claim 2, wherein: the width of the rear section of the notch of the upper positioning ring is obviously larger than that of the notch of the commutator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213005.6A CN106911232B (en) | 2017-04-01 | 2017-04-01 | Pressing device and pressing method for armature commutator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213005.6A CN106911232B (en) | 2017-04-01 | 2017-04-01 | Pressing device and pressing method for armature commutator |
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| Publication Number | Publication Date |
|---|---|
| CN106911232A CN106911232A (en) | 2017-06-30 |
| CN106911232B true CN106911232B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710213005.6A Active CN106911232B (en) | 2017-04-01 | 2017-04-01 | Pressing device and pressing method for armature commutator |
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| CN (1) | CN106911232B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113783373A (en) * | 2021-09-17 | 2021-12-10 | 浙江松田汽车电机***股份有限公司 | Device for enabling armature lead to enter commutator groove |
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