CN105322692A - Motor housing and forming method therefor - Google Patents

Motor housing and forming method therefor Download PDF

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Publication number
CN105322692A
CN105322692A CN201510239711.9A CN201510239711A CN105322692A CN 105322692 A CN105322692 A CN 105322692A CN 201510239711 A CN201510239711 A CN 201510239711A CN 105322692 A CN105322692 A CN 105322692A
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China
Prior art keywords
otch
annular sidewall
pole
motor case
pawl
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CN201510239711.9A
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CN105322692B (en
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赵殿合
黄文波
谈国民
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CHANGZHOU GONGLI METAL PRODUCT TECHNOLOGY Co Ltd
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CHANGZHOU GONGLI METAL PRODUCT TECHNOLOGY Co Ltd
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Abstract

The invention discloses a motor housing and a forming method therefor. The motor housing comprises a barrel-shaped housing formed by an annular side wall and end plate in a surrounding manner; an opening end is formed in the top end of the housing; the annular side wall extends up and down; the end plate is arranged at the bottom end of the annular side wall; a side cutting opening and a cover plate mounting groove for mounting a cover plate are formed in the top end of the annular side wall; the width of the upper end opening is equal to the width of the lower end opening of the side cutting opening; a central hole, a positioning hole, pole claw holes and pole claws are formed in the end plate; each pole claw is an inner turning edge formed by the hole material of the pole claw hole in bending towards the housing; the pole claw hole and the pole claw are uniformly arranged around the central axial line of the housing; and the pole claw is a circular arc plate that is bent in a circular-arc shape around the central axial line of the housing and axially extends. A forming method for the motor housing is a method for manufacturing the motor housing. The invention provides the motor housing with the pole claw and the side cutting opening that are not easy to be deformed, and with a better product performance, and the continuous forming method for the motor housing.

Description

A kind of motor case and forming method thereof
Technical field
The present invention relates to the parts of motor, especially relate to a kind of motor case and forming method thereof.
Background technology
The casing of existing motor is overall stamping-out, die-cut and the bending of the die-cut and pole pawl of the side otch of housing is for completing by multiple mould substep, the precision of motor case is lower, complex process, inefficiency, and the openend of the pole pawl of motor case and side otch is easily out of shape, and affects properties of product.
Summary of the invention
The object of this invention is to provide the continuous shaping method of a kind of pole pawl and side otch is not yielding, properties of product are higher motor case and a kind of motor case.
For achieving the above object, the present invention adopts following technical scheme: a kind of motor case, comprise the housing of the tubular be enclosed to form by annular sidewall and end plate, housing tip is openend, downward-extension on annular sidewall, end plate is arranged on annular sidewall bottom, annular sidewall and end plate are integral type structure, annular sidewall top is provided with side otch and the cover plate mounting groove for installing cover plate, side otch extends downward the bottom of annular sidewall from annular sidewall top, the upper end open of side otch is the opening between otch dual-side top, side, the upper end open width of side otch is equal with its lower end width, to be greater than through side otch upper end open and annular sidewall outside wall surface and around the upper circumference circle of casing center axis through otch lower end, side and annular sidewall outside wall surface and around the lower circumference circle of casing center axis, end plate is provided with centre bore, location hole, pawl hole, pole and pole pawl, described pole pawl is the in-flanges of hole material to bending in housing in pawl hole, pole, pawl hole, pole and pole pawl are all arranged uniformly at intervals around the central axis of housing, pole pawl be around casing center axis be the bending and axially extended arc plate of circular arc.
Pole pawl is lower large little trapezoidal shape.
Upper circumference circle 3%-5% longer than lower circumference circle.
Described pole pawl is 6 or 8.
Pole pawl is its lateral surface towards annular sidewall in the burr face by being formed during mould molding, and side otch is positioned in the outside wall surface of annular sidewall on the burr limit by being formed during mould molding.
Otch both sides, side are equipped with described cover plate mounting groove, and otch two cover plate mounting grooves adjacent with its both sides in side are communicated with.
A forming method for described motor case, walks in motor case continuous mould by material strip, material strip is comprised to the operation of following operation successively on each station of continuous mould:
(1), material strip cut out on first station and have before arc-shaped edges edge front side portion, have after the rear lateral portion on arc-shaped edges edge and connecting band, connecting band is connected between forward and backward sidepiece, the front side portion that material strip punches out on first station when upper once charging with previous die-cut time the rear lateral portion that formed relative and jointly form a circular flitch;
(2), to circular flitch carry out repeatedly load-unload, and form annular sidewall and end plate;
(3), centre bore and location hole are punched out to end plate;
(4), to annular sidewall side blow side otch, now, the upper end open of side otch is positioned at the top end face of annular sidewall, and the upper end open width of side otch is less than its lower end width;
(5), to annular sidewall top side blow cover plate mounting groove;
(6), on end plate, punch out pole pawl, now pole pawl and end plate are acute angle;
(7), carry out bending around the circular arc of casing center axis to pole pawl;
(8), axial extension is made it to pole pawl punching press;
(9), shaping is carried out to pole pawl;
(10), rotary-cut is carried out to shell nozzle end;
(11), connecting band is cut off.
In step (1), be connected with two connecting bands altogether between forward and backward sidepiece, two connecting bands lay respectively at the left and right sides of material strip.
In step (2), described circular flitch carries out three drawing altogether.
In step (4), the upper end open width of side otch reduces 3%-5% than its lower end width.
A kind of motor case of the present invention, there is following beneficial effect: because the upper shed width of side otch is greater than its lower end width, and then the deflection of side otch upper opening can be controlled, make side otch upper, open end not yielding, after preventing motor case completely shaping, side otch is trapezoidal, causes shell nozzle end to lose circle.Pole pawl is the in-flanges in pawl hole, pole and pole pawl is arc plate, can improve casing working (machining) efficiency and improve the intensity of pole pawl.The burr face of pole pawl is its lateral surface towards annular sidewall, and the burr limit of side otch is positioned in the outside wall surface of annular sidewall, all can improve the serviceability of motor case.
The forming method of a kind of motor case of the present invention, by continuous mould by motor case punch forming, decreases positioning work, improves production efficiency and workpiece accuracy.
Accompanying drawing explanation
Fig. 1 is the stereogram of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 1;
Fig. 3 is the product Layout of each station when utilizing continuous mould to carry out the production of motor case in the embodiment of the present invention 2;
Fig. 4 is the structural representation of the cross section of the drift of blanking die;
Fig. 5 is the structural representation of motor case in step (4);
Fig. 6 is the structural representation of motor case in the step (6) of embodiment 2;
Fig. 7 is the A direction view in Fig. 6;
Fig. 8 is the structural representation of motor case in the step (7) of embodiment 2;
Fig. 9 is the B direction view in Fig. 8;
Figure 10 is the structural representation of motor case in the step (8) of embodiment 2;
Figure 11 is the C direction view in Figure 10.
Description of reference numerals: 1, pawl hole, pole, 2, pole pawl, 3, annular sidewall, 4, cover plate mounting groove, 5, openend, 6, centre bore, 7, end plate, 8, central axis, 9, location hole, 10, material strip, 11, rear lateral portion, 12, first station, 13, front side portion, 14, circular flitch, 15, second station, 16, 3rd station, 17, 4th station, 18, 5th station, 19, 6th station, 20, 7th station, 21, 8th station, 22, 9th station, 23, tenth station, 24, 11 station, 25, 12 station, 26, 13 station, 27, side otch, 28, side blow head, 29, left side outer edge, 30, inside edge, left side, 31, three-arc edge, 32, first arc-shaped edges edge, 33, middle drift, 34, 5th arc-shaped edges edge, 35, right side outer edge, 36, inside edge, right side, 37, 6th arc-shaped edges edge, 38, second arc-shaped edges edge, 39, 4th arc-shaped edges edge, 40, burr limit, 41, upper circumference, 42, lower circumference, 43, lateral surface.
Embodiment
Embodiment 1:
By a kind of motor case shown in Fig. 1-Fig. 2, comprise the housing of the tubular be enclosed to form by annular sidewall 3 and end plate 7, downward-extension on annular sidewall 3, end plate 7 is arranged on annular sidewall 3 bottom, housing tip is openend 5, namely the top mouth end of annular sidewall 3 is the openend 5 of housing, and the top end face of annular sidewall 3 is the top end face of housing.Annular sidewall 3 and end plate 7 are integral type structure.
Annular sidewall 3 top is provided with side otch 27 and the cover plate mounting groove 4 for installing cover plate, side otch 27 and cover plate mounting groove 4 are radial penetrating setting, the notch of cover plate mounting groove 4 upwards, side otch 27 extends downward the bottom of annular sidewall 3 from the top of annular sidewall 3, side otch 27 is downward-extension vertically, the lower end of side otch 27 is positioned on the upside of the bottom of annular sidewall 3, cover plate mounting groove 4 arranges several around casing center axis 8 interval, and side otch 27 both sides are equipped with described cover plate mounting groove 4, the two cover plate mounting grooves 4 that side otch 27 is adjacent with its both sides are all communicated with, cover plate mounting groove 4 is prior art, therefore do not describe in detail.The upper end open width L of side otch 27 is equal with its lower end width M, side otch 27 is wait width to arrange from top to bottom, the side of two axis of side otch 27 is spaced and parallel setting, the upper end open of side otch 27 is the opening between the dual-side top of side otch 27, the upper end open width L of side otch 27 refers to the width distance between the dual-side top of side otch 27, the lower ending opening M of side otch 27 refers to the width distance between the dual-side bottom of side otch 27, when side otch 27 both sides are all communicated with cover plate mounting groove 4, as shown in the Fig. 1 in embodiment 1, the upper end open width L of side otch 27 refers to the width distance of two bottom lands respectively and between two joining places formed between the dual-side top of side otch 27 of the two cover plate mounting grooves 4 be connected with side otch 27 both sides.Certainly, the present invention is not limited to above-mentioned form, side otch 27 both sides also can not be communicated with cover plate mounting groove 4, when side otch 27 both sides are not all communicated with cover plate mounting groove 4, the upper end open of side otch 27 is positioned on the top end face of annular sidewall 3, the dual-side top of side otch 27 all extends to the top end face of annular sidewall 3, and now the upper end open width of side otch 27 refers to the width distance between the dual-side top of the side otch 27 all extending to annular sidewall 3 top end face.
To be greater than through side otch 27 upper end open and annular sidewall 3 outside wall surface and around upper circumference 41 girth of casing center axis 8 through side otch 27 lower end and annular sidewall 3 outside wall surface and around lower circumference 42 girth of casing center axis 8, the center of circle of upper circumference 41 and lower circumference 42 is all positioned on casing center axis 8, upper circumference 41 girth is than lower circumference 42 girth long 3%, certainly, the present invention is not limited to above-mentioned form, upper circumference 41 girth is comparable lower circumference 42 girth long 5% also, or upper circumference 41 girth is than between the long 3%-5% of lower circumference 42 girth, like this, the round platform annular sidewall close to annular that annular sidewall 3 is big up and small down.
Side otch 27 is positioned in the outside wall surface of annular sidewall 3 on the burr limit 40 by being formed during mould molding, namely side otch 27 is when side blow is shaping, side otch 27 is rush to hull outside by housing, this burr limit 40 is positioned on the edge that side otch 27 is connected with the outside wall surface of annular sidewall 3, can improve the using function of motor case like this.
Described end plate 7 is provided with centre bore 6, location hole 9, pawl hole, pole 1 and pole pawl 2, and location hole 9 arranges two altogether, and two location holes 9 lay respectively at the both sides of centre bore 6.
Described pole pawl 2 is that the hole material in pawl hole, pole 1 is along the inside edge in pawl hole, pole 1 to the in-flanges of bending in housing, the central axis 8 that pawl hole, pole 1 and pole pawl 2 are around housing is arranged uniformly at intervals, all pole pawls 2 are all positioned at circumferentially same, pole pawl 2 is bend and axially extended arc plate around casing center axis 8 in circular arc, and pole pawl 2 is lower large little trapezoidal shape, pole pawl 2 and pawl hole, pole 1 are one_to_one corresponding, pole pawl 2 arranges 8 altogether, pawl hole, pole 1 is also 8, certainly, the present invention is not limited to above-mentioned form, and pole pawl 2 and pawl hole, pole 1 also can all arrange 6.Pole pawl 2 is the lateral surface 43 towards annular sidewall 3 of pole pawl 2 in the burr face by being formed during mould molding, and namely pole pawl 2 is when punching molding, for die-cut in housing by hull outside, can improve the serviceability of motor case like this.Pawl hole, pole 1 can be used as the louvre of motor case.
Embodiment 2:
Fig. 3-Figure 11 is the forming method of motor case described in a kind of embodiment 1, material strip 10 is walked in motor case continuous mould, material strip 10 is for front and back extension and material strip 10 is charging from back to front, and material strip 10 comprises the operation of following operation successively on each station of continuous mould to material strip 10:
(1), material strip 10 first station 12 cuts out the front side portion 13 with front arc-shaped edges edge wherein, there is rear lateral portion 11 and the connecting band on rear arc-shaped edges edge, rear lateral portion 11 is thrown away with the material strip clout on rear side of it and is connected as a single entity, front arc-shaped edges edge and rear arc-shaped edges edge are for arrange dorsad, and front arc-shaped edges edge and rear arc-shaped edges can form a full circle shape along when connecting, before connecting band is connected to, rear lateral portion 13, between 11, before adjacent, rear lateral portion 13, two connecting bands are connected with altogether between 11, article two, connecting band lays respectively at the left and right sides of material strip 10 and is symmetrical arranged, connecting band is the band that is flexible coupling.The front side portion 13 that material strip 10 punches out on first station 12 when upper once charging with previous die-cut time the rear lateral portion 11 that formed relative and jointly form a circular flitch 14.
Corresponding first station 12 of continuous mould is provided with blanking die, as shown in Figure 4, this blanking die has three drifts: be positioned at middle middle drift 33 and lay respectively at two side blow heads 28 of middle drift 33 left and right side, the edge of the front and rear sides of middle drift 33 be respectively the first arc-shaped edges along 32 and second arc-shaped edges along 38, the edge of arranged on left and right sides is respectively inside edge 30, left side and inside edge, right side 36, inside edge 30, side blow head 28 corresponding left side, left side is provided with left side outer edge 29, and left side side blow head 28 is respectively equipped with three-arc edge 31 and the 4th arc-shaped edges along 39 in the forward and backward side of left side outer edge 29, inside edge 36, side blow head 28 corresponding right side, right side is provided with right side outer edge 35, right side side blow head 28 be respectively equipped with in the forward and backward side of right side outer edge 35 the 5th arc-shaped edges along 34 and the 6th arc-shaped edges along 37, inside edge 30, left side and left side outer edge 29 are interval relative set, inside edge 36, right side and right side outer edge 35 are interval relative set, blanking die is provided with the die suitable with its drift, during blanking die work, inside edge 30, left side and left side outer edge 29 acting in conjunction can punch out the connecting band in left side, inside edge 36, right side and right side outer edge 35 acting in conjunction can punch out the connecting band on right side, three-arc edge 31, first arc-shaped edges along 32 and the 5th arc-shaped edges can punch out arc-shaped edges edge before front side portion 13 along 34, 4th arc-shaped edges is along 39, second arc-shaped edges along 38 and the 6th arc-shaped edges can to punch out the rear arc-shaped edges edge of rear lateral portion 11 along 37.
(2), on three stations, three drawing are carried out to circular flitch 14, namely stretch for the first time on second station 15,3rd station 16 carries out succeeding stretch, 4th station 17 carries out three times stretch, after having stretched when three times, form annular sidewall 3 and end plate 7, now, annular sidewall 3 is annular sidewall.
(3), on the 5th station 18, centre bore 6 and two location holes 9 are punched out to end plate 7.
(4), to annular sidewall 3 side blow side otch 27 on the 6th station 19, side otch 27 is rush to hull outside by housing, now, as shown in Figure 5, side otch 27 extends downward the bottom of annular sidewall 3 from the top end face of annular sidewall 3, two sides of side otch 27 are oblique line and extend, and the top of dual-side tilts in opposite directions, dual-side bottom expands outwardly, the upper end open of side otch 27 is the opening between otch dual-side top, side, the upper end open of side otch 27 is positioned at the top end face of annular sidewall 3, now the upper end open width L1 (width distance between upper end open width and dual-side top) of side otch 27 is less than its lower end width M (width distance between lower end width and dual-side bottom), and the upper end open width L1 of side otch 27 reduces 3% than its lower end width M, certainly, the present invention is not limited to above-mentioned form, the upper end open width L1 of side otch 27 reduces 5% than its lower end width M, or the upper end open width L1 of side otch 27 reduces between 3%-5% than its lower end width M.
(5), to annular sidewall 3 top side blow cover plate mounting groove 4 on the 7th station 20, around the several cover plate mounting groove 4 of casing center axis 8 interval side blow, and also equal side blow cover plate mounting groove 4 in side otch 27 both sides, the two cover plate mounting grooves 4 making side otch 27 adjacent with its both sides are connected, the upper end open of side otch 27 is the opening between side otch 27 dual-side top, so now, the upper end open of side otch 27 is the opening of two bottom lands respectively and between two joining places formed between the dual-side top of side otch 27 of the two cover plate mounting grooves 4 be connected with side otch 27 both sides, the upper end open width L of side otch 27 refers to the width distance of two bottom lands respectively and between two joining places formed between the dual-side top of side otch 27 of the two cover plate mounting grooves 4 be connected with side otch 27 both sides.
(6), on the 8th station 21, punch out eight pole pawls 2 and pawl hole, eight pole 1 on end plate 7, as shown in Figure 6 and Figure 7, now pole pawl 2 and end plate 7 are in acute angle.Pole pawl 2 is die-cut in housing by hull outside.
(7), on the 9th station 22 carry out bending around the circular arc of casing center axis 8 to pole pawl 2, now motor case as shown in Figure 8 and Figure 9.
(8), on the tenth station 23 make it axial extension to pole pawl 2 punching press, now motor case as shown in Figure 10 and Figure 11.
(9), on the 11 station 24, shaping is carried out to pole pawl 2.
(10), on the 12 station 25, rotary-cut is carried out to shell nozzle end 5, namely the clout of the unnecessary height component in shell nozzle end 5 place is fallen by the rotary-cutting die rotary-cut on continuous mould, make the top end face of housing more smooth, and make housing meet the requirement of height dimension.In step (1)---in step (10), between the workpiece of adjacent two stations, there are two connecting bands all the time.
(11), on the 13 station 26 cut off connecting band (i.e. clout), so far, motor case is shaping.After motor case is shaping, as shown in Figure 1, the upper end open width L of side otch 27 is equal with its lower end width M, to be greater than through side otch 27 upper end open and annular sidewall 3 outside wall surface and around upper circumference 41 girth of casing center axis 8 through side otch 27 lower end and annular sidewall 3 outside wall surface and around lower circumference 42 girth of casing center axis 8, and upper circumference 41 girth is than lower circumference 42 girth long 3%, the round platform ring-type close to annular that annular sidewall 3 is big up and small down.Certainly, the present invention is not limited to above-mentioned form, when in step (4), the upper end open width L1 of side otch 27 reduces 5% than its lower end width M, the side otch 27 upper end open width L after motor case can be made shaping is equal with lower end width M and after making motor case shaping, and upper circumference 41 girth grows 5% than lower circumference 42 girth; When in step (4), the upper end open width L1 of side otch 27 reduces between 3%-5% than its lower end width M, side otch 27 upper end open width L after motor case all can be made shaping is equal with lower end width M, make motor case shaping after upper circumference 41 girth longer than lower circumference 42 girth, and motor case shaping after upper circumference 41 girth than between the long 3%-5% of lower circumference 42 girth.
Upper bolster and the described blanking die that should set gradually first station 12 in corresponding step (1) between die shoe of described continuous mould, in corresponding step (2) second, 3rd, three drawing dies of the 4th station 17, the punching blanking mould of the 5th station 18 in corresponding step (3), in corresponding step (4), the 6th station 19 can the side-punching mould of side blow side otch 27, in corresponding step (5), the 7th station 20 can the blanking die of side blow cover plate mounting groove 4, in corresponding step (6), the 8th station 21 can the die cutting die of die-cut pole pawl 2, the bending mould of the flexible pole pawl 2 of the 9th station 22 in corresponding step (7), the diel of the tenth station 23 in corresponding step (8), the shaping mould of the 11 station 24 in corresponding step (9), the cut-out mould of the 13 station 26 in the rotary-cut shaving die of the 12 station 25 and corresponding step (11) in corresponding step (10).
The forming method of a kind of motor case of the present invention, the side otch 27 of the motor case of final molding is upper and lower opening consistent size, namely the upper end open width L of side otch 27 is consistent with lower end width M, two sides of side otch 27 are spaced and parallel, but because manufacturability loses the impact of circle problem, therefore need when being cut by die side, namely in step (4), the upper end open width L1 of side otch 27 compares the size (up-small and down-big) reducing 3%-5% with lower end width M, with controlling distortion amount, like this when motor case is shaping by serial process mould time, annular sidewall 3 can produce certain distortion, the upper end open of side otch 27 can slightly be strengthened, and the lower end width of side otch 27 is constant, just in time make up the surplus stayed before this, make upper and lower opening consistent size (namely final finished side otch about 27 width dimensions is consistent), make the girth of circumference 41 be greater than the girth of lower circumference 42 simultaneously, this is the mistake circle problem solving side cutting process on the one hand, guarantee that the upper and lower side of side otch 27 is measure-alike, on the other hand, facilitate assembling, because upper circumference 41 girth is larger than lower circumference 42 girth, so the top mouth diameter of annular sidewall 27 is also slightly bigger, make the round table-like sidewall close to annular that whole annular sidewall 3 is big up and small down, like this when assembling motor, the intrawares such as stator easily load.
The forming method of a kind of motor case of the present invention, by continuous mould by motor case punch forming, decreases positioning work, improves production efficiency and workpiece accuracy.

Claims (10)

1. a motor case, comprise the housing of the tubular be enclosed to form by annular sidewall and end plate, housing tip is openend, downward-extension on annular sidewall, end plate is arranged on annular sidewall bottom, annular sidewall and end plate are integral type structure, annular sidewall top is provided with side otch and the cover plate mounting groove for installing cover plate, it is characterized in that: side otch extends downward the bottom of annular sidewall from annular sidewall top, the upper end open of side otch is the opening between otch dual-side top, side, the upper end open width of side otch is equal with its lower end width, to be greater than through side otch upper end open and annular sidewall outside wall surface and around the upper circumference circle of casing center axis through otch lower end, side and annular sidewall outside wall surface and around the lower circumference circle of casing center axis, end plate is provided with centre bore, location hole, pawl hole, pole and pole pawl, described pole pawl is the in-flanges of hole material to bending in housing in pawl hole, pole, pawl hole, pole and pole pawl are all arranged uniformly at intervals around the central axis of housing, pole pawl be around casing center axis be the bending and axially extended arc plate of circular arc.
2. a kind of motor case as claimed in claim 1, is characterized in that: pole pawl is lower large little trapezoidal shape.
3. a kind of motor case as claimed in claim 1, is characterized in that: upper circumference circle 3%-5% longer than lower circumference circle.
4. a kind of motor case as claimed in claim 1, is characterized in that: described pole pawl is 6 or 8.
5. a kind of motor case as claimed in claim 1, it is characterized in that: pole pawl is its lateral surface towards annular sidewall in the burr face by being formed during mould molding, and side otch is positioned in the outside wall surface of annular sidewall on the burr limit by being formed during mould molding.
6. a kind of motor case as claimed in claim 1, is characterized in that: otch both sides, side are equipped with described cover plate mounting groove, and otch two cover plate mounting grooves adjacent with its both sides in side are communicated with.
7. a forming method for a kind of motor case described in any one of claim 1-6, is characterized in that: walked in by material strip in motor case continuous mould, material strip is comprised to the operation of following operation successively on each station of continuous mould:
(1), material strip cut out on first station and have before arc-shaped edges edge front side portion, have after the rear lateral portion on arc-shaped edges edge and connecting band, connecting band is connected between forward and backward sidepiece, the front side portion that material strip punches out on first station when upper once charging with previous die-cut time the rear lateral portion that formed relative and jointly form a circular flitch;
(2), to circular flitch carry out repeatedly load-unload, and form annular sidewall and end plate;
(3), centre bore and location hole are punched out to end plate;
(4), to annular sidewall side blow side otch, now, the upper end open of side otch is positioned at the top end face of annular sidewall, and the upper end open width of side otch is less than its lower end width;
(5), to annular sidewall top side blow cover plate mounting groove;
(6), on end plate, punch out pole pawl, now pole pawl and end plate are acute angle;
(7), carry out bending around the circular arc of casing center axis to pole pawl;
(8), axial extension is made it to pole pawl punching press;
(9), shaping is carried out to pole pawl;
(10), rotary-cut is carried out to shell nozzle end;
(11), connecting band is cut off.
8. the forming method of a kind of motor case as claimed in claim 7, is characterized in that: in step (1), be connected with two connecting bands altogether between forward and backward sidepiece, two connecting bands lay respectively at the left and right sides of material strip.
9. the forming method of a kind of motor case as claimed in claim 7, is characterized in that: in step (2), and described circular flitch carries out three drawing altogether.
10. the forming method of a kind of motor case as claimed in claim 7, is characterized in that: in step (4), and the upper end open width of side otch reduces 3%-5% than its lower end width.
CN201510239711.9A 2015-05-12 2015-05-12 A kind of motor case forming method Active CN105322692B (en)

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CN107294322A (en) * 2016-03-27 2017-10-24 莫玲芝 A kind of motor machine barrel edge-neatening apparatus
CN108723238A (en) * 2017-04-18 2018-11-02 Ykk株式会社 The manufacturing method of molding machine, the forming method of metal material and stopping tine
CN112531954A (en) * 2020-12-11 2021-03-19 安徽雷利智能科技有限公司 Shell assembly and motor using same

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Publication number Priority date Publication date Assignee Title
CN201191786Y (en) * 2008-04-24 2009-02-04 单庚明 Claw-pole type synchronous micro motor
CN203664457U (en) * 2014-01-17 2014-06-25 常州工利精机科技有限公司 Large-gap side punching mechanism for casing
CN203664478U (en) * 2014-01-17 2014-06-25 常州工利精机科技有限公司 Casing drawing mechanism based on soft connection carrier technology
CN203664511U (en) * 2014-01-17 2014-06-25 常州工利精机科技有限公司 Tooth profile R forming mechanism for casing electrode claw

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107294322A (en) * 2016-03-27 2017-10-24 莫玲芝 A kind of motor machine barrel edge-neatening apparatus
CN108723238A (en) * 2017-04-18 2018-11-02 Ykk株式会社 The manufacturing method of molding machine, the forming method of metal material and stopping tine
CN112531954A (en) * 2020-12-11 2021-03-19 安徽雷利智能科技有限公司 Shell assembly and motor using same
CN112531954B (en) * 2020-12-11 2022-03-01 安徽雷利智能科技有限公司 Shell assembly and motor using same

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