CN202384944U

CN202384944U - Repeatedly-punched die for traction motor punched piece

Info

Publication number: CN202384944U
Application number: CN2011205751600U
Authority: CN
Inventors: 黄秉一; 成熹; 曹飞
Original assignee: CSR Zhuzhou Electric Co Ltd
Current assignee: CRRC Zhuzhou Electric Co Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-08-15
Anticipated expiration: 2021-12-31

Abstract

The utility model discloses a repeatedly-punched die for a traction motor punched piece, which comprises an upper die plate, an upper die base plate, an upper fixed plate, a shaft bole punch, an unloading plate, a lower die plate, a lower die base plate, a lower fixed plate and a concave die corresponding to the shaft hole punch. The upper fixed plate is fixed on the upper die plate, the upper die base plate, the shaft hole punch and the unloading plate are all fixed on the upper fixed plate, the lower die base plate, the lower fixed plate and the concave die are all fixed on the lower die plate, a transposition auxiliary hole punch guide sleeve is fixed on the upper fixed plate, a transposition auxiliary hole punch is arranged in the transposition auxiliary hole punch guide sleeve, a stroke cavity is arranged between the upper fixed plate and the upper die base plate, the stroke cavity extends to the position above the transposition process hole punch, a pulling plate is arranged in the stroke cavity, one end of the pulling plate far away from the center of the die is connected with an air cylinder, the pulling plate is pushed and pulled by a piston of the air cylinder to go forward or backward in the stroke cavity, and a transposition auxiliary hole concave die corresponding to the transposition auxiliary hole punch is fixed on the lower fixed plate.

Description

The multiple punch die tool of a kind of traction electric machine punching

Technical field

The utility model relates to the motor preparation field, relates generally to the multiple punch die tool of a kind of traction electric machine punching.

Background technology

Now both at home and abroad all motor manufacturings all exist the rolling thickness of silicon steel sheet itself clocklike inhomogeneous, and reasons such as whether sharp inhomogeneous and die point is cause the stator punching and the inconsistent problem of rotor punching shear burr height of processing owing to mould manufacturing gap in stator punching and the rotor punching punching course.Because the existence of the problems referred to above makes that stator punching and every thickness on every side of rotor punching that punch process is come out also can be inconsistent, causes the motor stator core and the rotor core height that laminate inconsistent.

We take a high rotor core of 400mm to give an example; Rotor punching with 0.5mm thickness laminates a motor rotor core that 400mm is high, needs (400/0.5=800) 800 rotor punchings, suppose if every punching on every side the maximum difference of thickness be 0.01mm; Laminating the height maximum difference so around rotor core is exactly (0.01 * 800=8) 8mm; It is tight to form direction of rotor core, and a direction is loose, does not reach the height tolerance of drawing requirement.Adopt became uneven even stator punching and the produced electric machine iron core of rotor punching can have following quality problems: 1, tightness degree is inconsistent between iron core height and the punching; Can cause motor internal magnetic field inhomogeneous; Thereby cause the suffered electromagnetic force of epitrochanterian each sliver appearance not of uniform size, it is big that magnetic resistance becomes.2, the iron core difference in height is too big, and it is curved to produce axle, can have a strong impact on the motor dynamic balance performance, and vibration will be big in running, thereby causes that bearing temperature is high, noise is big, has aggravated bearing wear.3, electric efficiency reduces, motor shortening in useful life.

If produce 5000 motors (is example with the YQ1633 motor) per year,, just there are every year 50 rotor cores will move back axle by 1% curved calculating; Scrap 10000 yuan of motor shaft losses, rotor core of repeated heating needs 8 hours in the cabinet-type electric furnace of 54KW, power consumption 432 degree; Calculate by 1 yuan/degree electricity, a rotor heats 432 yuan of expenses, and moving back axle needs 3 people operation; About 300 yuan of labor wage; The curved total loss of rotor core axle just has 10732 yuan, solves the curved problem of motor rotor core axle, and can reduce expenses every year for company is 536600 yuan.

This shows that above-mentioned prior motor punching moulding process obviously still has inconvenience and defective, demands urgently further improving.In order to solve the problem that exists in the motor stamping forming process in the prior art; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see suitable design technology for a long time, how improving the problem that exists in the motor stamping forming process in the prior art obviously is the problem that the anxious desire of relevant dealer solves always.

The utility model content

The main purpose of the utility model is; A kind of making mould of traction electric machine punching is provided, has overcome in the prior art, differ because mould is made the inhomogeneous burr height that causes in gap; Stator punching and rotor punching laminate highly inconsistent defective; Improve motor stator core and rotor iron core laminated quality and production efficiency, lowered manufacturing cost, improved motor usefulness and useful life.

The multiple punch die tool of a kind of traction electric machine punching according to the utility model proposes comprises:

Cope match-plate pattern, upper die plate, upper mounted plate, axis hole drift and stripper, said upper mounted plate are fixed on the said cope match-plate pattern, and said upper die plate, said axis hole drift and said stripper all are fixed on the said upper mounted plate;

Lower bolster, counterdie backing plate, bottom plate and with the corresponding die of said axis hole drift, said counterdie backing plate, said bottom plate and said die all are fixed on the said lower bolster;

Be fixed with transposition fabrication hole drift guide pin bushing on the said upper mounted plate; Transposition fabrication hole drift is arranged in the said transposition fabrication hole drift guide pin bushing; The stroke chamber is arranged between said upper mounted plate and the upper die plate, and said stroke chamber extends to said transposition fabrication hole drift top, and said stroke has pumping board in the chamber; Said pumping board is fixedly connected with cylinder away from an end of mold center; The said pumping board of piston push-and-pull of said cylinder advances said pumping board or retreats in said stroke chamber, be fixed with on the said bottom plate and the corresponding transposition fabrication hole of said transposition fabrication hole drift die.

Preferably, said transposition fabrication hole drift has 4 groups, and said transposition fabrication hole die has 4 groups.

Preferably, said transposition fabrication hole drift is in the position apart from the 200mm of mold center.

In sum, the utility model compared with prior art has following advantage: after motor stator punching and rotor punching laminated, the iron core that is caused by burr height accumulative total laminated difference in height and reduces, and the thickness of punching is even; Prevented that motor is curved because of the axle that the rotor core variable thickness causes; Reduced the vibration and the noise of motor, reduced the wearing and tearing of bearing, the bearing temperature of motor is controlled in the reasonable range; Improve motor stator core and rotor iron core laminated quality and production efficiency, reduced the motor manufacturing cost, improved motor usefulness and useful life.

Above-mentioned explanation only is the general introduction of the utility model technical scheme, to understand the utility model technological means in order can more knowing, and can to implement according to the content of specification, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.

Description of drawings

Fig. 1 is the structural representation of the multiple punch die tool of the utility model traction electric machine punching.

Embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to the embodiment of the utility model specify as after.

Please with reference to Fig. 1; The multiple punch die tool of a kind of traction electric machine punching; Comprise: cope match-plate pattern 1, upper die plate 2, upper mounted plate 3, axis hole drift 8 and stripper 9, upper mounted plate 3 are fixed on the cope match-plate pattern 1, and upper die plate 2, axis hole drift 8 and stripper 9 all are fixed on the upper mounted plate 3;

Lower bolster 10, counterdie backing plate 11, bottom plate 12 and with axis hole drift 8 corresponding dies 14, counterdie backing plate 11, bottom plate 12 and die 14 all are fixed on the lower bolster 10;

Be fixed with transposition fabrication hole drift guide pin bushing 5 on the upper mounted plate 3, transposition fabrication hole drift guide pin bushing has transposition fabrication hole drift 6 for 5 li, and transposition fabrication hole drift 6 is in the position apart from the 200mm of mold center; Transposition fabrication hole drift 6 has 4 groups, between upper mounted plate 3 and the upper die plate 2 the stroke chamber is arranged, and the stroke chamber extends to transposition fabrication hole drift 6 tops; Pumping board 4 is arranged in the stroke chamber; Pumping board 4 is fixedly connected with cylinder 13 away from an end of mold center, and the piston push-and-pull pumping board 4 of cylinder 13 advances pumping board 4 or retreats in the stroke chamber; The fabrication hole drift 6 corresponding transposition fabrication hole dies 7 that are fixed with on the bottom plate 12 and replace, transposition fabrication hole die 7 has 4 groups.

The course of work of the utility model is following: four groups of replace fabrication hole drift and transposition fabrication hole dies; Wherein one group of work the time other three groups do not work; Piston promotion pumping board when cylinder; Pumping board advances, will replace the fabrication hole drift tightly wedge in transposition fabrication hole guide pin bushing, in running order; Its excess-three group fabrication hole drift is pulled out because of the pumping board that links to each other with the corresponding cylinder piston, and the three groups of pairing transposition fabrication hole of pumping board drifts that are drawn out can not punching.Analogize according to above, carry out fabrication hole processing, and, dash 20 transpositions 90 and spend, reach on stator punching and rotor punching blank and add purpose towards fabrication hole with controlled by infrared light inductor counting.

The above; It only is the preferred embodiment of the utility model; Not being that the utility model is done any pro forma restriction, though the utility model with the preferred embodiment exposure as above, yet is not in order to limit the utility model; Anyly be familiar with the professional and technical personnel; In not breaking away from the utility model technical scheme scope, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents that can utilize above-mentioned announcement, be the content that does not break away from the utility model technical scheme in every case;, all still belong in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment has done according to the technical spirit of the utility model.

Claims

1. the punch die tool is answered in a traction electric machine punching, comprising:

It is characterized in that: be fixed with transposition fabrication hole drift guide pin bushing on the said upper mounted plate; Transposition fabrication hole drift is arranged in the said transposition fabrication hole drift guide pin bushing; Between said upper mounted plate and the said upper die plate stroke chamber is arranged, said stroke chamber extends to said transposition fabrication hole drift top, and said stroke has pumping board in the chamber; Said pumping board is fixedly connected with cylinder away from an end of mold center; The said pumping board of piston push-and-pull of said cylinder advances said pumping board or retreats in said stroke chamber, be fixed with on the said bottom plate and the corresponding transposition fabrication hole of said transposition fabrication hole drift die.

2. mould according to claim 1 is characterized in that: said transposition fabrication hole drift has 4 groups, and said transposition fabrication hole die has 4 groups.

3. mould according to claim 1 is characterized in that: said transposition fabrication hole drift is in the position apart from the 200mm of mold center.