CN102386546B

CN102386546B - Punch die for commutator segment

Info

Publication number: CN102386546B
Application number: CN 201110360637
Authority: CN
Inventors: 阮志伍; 杨建旺; 阮金雨
Original assignee: 瑞安市博宇电器有限公司
Current assignee: Ruian Boyu Technology Co ltd
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2013-05-22
Anticipated expiration: 2031-11-15
Also published as: CN102386546A

Abstract

The invention discloses a punch die for a commutator segment. The punch die comprises punches and punching openings, and is characterized in that: a bottom die of the punch die is provided with a transverse feeding channel; the shape of the vertical face of the transverse feeding channel is the same as the shape of the cross section of a drawn wire rod; the punching openings are formed on the bottom die, and comprise punching openings a, b and c; the punching openings a and b are formed in a vertical direction vertical to the feeding channel; the punching opening c is formed in a transverse direction vertical to the feeding channel; the punches corresponding to the punching openings are punches A, B and C; the punches A and B are vertically arranged; and the punch C is transversely arranged. The punch die realizes the rapid punch forming of the commutator segment, and is high in production efficiency and forming quality.

Description

A kind of commutator bar stamping die

Technical field

The present invention relates to a kind of diel, be specifically related to a kind of commutator segment to commutator and carry out stamping forming commutator segment diel.

Background technology

Commutator is widely used at electric tool, machine field, commutator major part be commutator segment.as Fig. 1, 2, the commutator segment of the Hooked reverser shown in 3, to pass through the copper material drawing, the moulding of Multi-step forming ability, its manufacturing process is such, at first copper material is carried out drawing, the wire cross-section shape that drawing goes out is identical with the vertical cross-section shape of commutator segment, then drawing wires carries out punching press in the first diel, make the head moulding of commutator segment, then carry out punching press in the second diel, make the dovetail pin moulding of commutator segment and realize the punching press severing of commutator segment, because the punching press to the dovetail pin will be carried out from the side surface direction of commutator segment, and the commutator segment thickness that the party makes progress is thicker, so easy flexural deformation in two of the commutator segment of punching press severing, the Forming Quality of commutator segment can not be effectively guaranteed.Owing to will just completing the punch forming of commutator segment by the twice diel, so production efficiency is lower.

Summary of the invention

In view of the problem that present known technology exists, the technical problem to be solved in the present invention is to be to provide a kind of can realize the quick punch forming of commutator segment, the commutator bar stamping die that production efficiency is high, Forming Quality is good.

For solving the problems of the technologies described above, the present invention takes following technical scheme to complete:

A kind of commutator bar stamping die, comprise drift and blurt out, it is characterized in that: the bed die of punch die has a feeding-passage that vertically arranges, the facade shape of feeding-passage is identical with the shape of cross section of thread-changing sheet drawing wires, blurt out and be located on described bed die, described blurt out comprise a that blurts out, b and the c that blurts out blurt out, a and blurt out b in the vertical direction setting perpendicular to feeding-passage blurts out, blurt out c in the horizontal direction setting perpendicular to feeding-passage, the drift that correspondence is blurted out is respectively drift A, drift B and drift C, drift A and drift B vertically arrange, drift C horizontally set.

By a feeding-passage and three settings of blurting out of feeding-passage different directions, make the commutator segment drawing wires that enters in feeding-passage, go out the dovetail pin of commutator segment at the c that blurts out, go out the head of commutator segment at the b that blurts out, at a that blurts out with commutator segment punching press severing, commutator segment just can be realized once punch forming fast like this, has improved production efficiency.In addition, when the thread-changing sheet is carried out the punching press severing, punching press is to carry out in the radial direction of commutator segment, and the commutator segment thinner thickness that the party makes progress, so two of the commutator segment of punching press severing is stressed less, be not easy flexural deformation, the Forming Quality of commutator segment can be effectively guaranteed, Forming Quality.

Drift A and drift B fixedly mount at punch fixing plate, punch fixing plate is moved up and down by the unit head drive of punch press, drift C fixedly mounts at slide unit, slide unit laterally slides on the bed die fixed head and arranges, slide unit has vertical inclined-plane, the voussoir of slide unit vertical inclined-plane setting is fixed on punch fixing plate or installs on the punch die top board of punch fixing plate relatively, when driving drift A, drift B and voussoir, the unit head of punch press moves downward when carrying out the punching press action, the wedge surface of voussoir is walked crosswise slip by vertical slope driving slide unit, drives drift C and carries out simultaneously the punching press action.Said structure can realize quickly and easily that three drifts carry out the punching press action simultaneously, and simple in structure.

Description of drawings

The present invention has following accompanying drawing:

Fig. 1 is stamping forming commutator segment product design figure;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is structural representation of the present invention;

Fig. 5 is the vertical view (removing upper die part divides) of Fig. 4;

Fig. 6 is the left view of Fig. 4;

Fig. 7 is the A-A view of Fig. 5;

Fig. 8 is the stamping forming procedure chart of commutator segment.

Embodiment

Accompanying drawing has represented technical scheme of the present invention and embodiment, and the below further describes each details and the operation principle thereof of embodiment more by reference to the accompanying drawings.

Shown in accompanying

drawing

1,2,3 is stamping forming commutator segment product design figure, and the vertical cross-section shape of commutator segment 100 as shown in Figure 2, and is identical with the shape of cross section of commutator segment drawing wires, the head 100a of commutator segment, the dovetail pin 100b of commutator segment.

as accompanying

drawing

4, 5, 6, shown in 7, commutator bar stamping die of the present invention, comprise drift and blurt out, the bed die 2 of punch die has a feeding-passage 1 that vertically arranges, the facade shape of feeding-passage 1 is identical with the shape of cross section of thread-changing sheet drawing wires, blurt out and be located on described bed die 2, described blurting out comprises a that blurts out, b and the c that blurts out blurt out, a and blurt out b in the vertical direction setting perpendicular to feeding-passage 1 blurts out, blurt out c in the horizontal direction setting perpendicular to feeding-passage 1, the correspondence a that blurts out, b blurts out, the drift of c of blurting out is respectively drift A, drift B and drift C, drift A and drift B vertically arrange, drift C horizontally set, drift A and drift B are in punch fixing plate 9 fixed installations, punch fixing plate 9 is connected to the bottom of punch die top board 7, punch die top board 7 is connected with die shank 8, like this when die shank 8 is connected to the punch press unit head, punch die top board 7, punch fixing plate 9, drift A and drift B just can be driven by the unit head of punch press and move up and down, described drift C is in slide unit 5 fixed installations, slide unit 5 laterally slides on bed die fixed head 3 and arranges, the slip of slide unit 5 is led by two fixed guide blocks 4 that are arranged on bed die fixed head 3, slide unit 5 has vertical inclined-plane 5a, the voussoir 6 of the vertical inclined-plane 5a setting of slide unit is fixed on described punch die top board 7 relatively, unit head when punch press drives drift A like this, when drift B and voussoir 6 move downward the punching press action of carrying out vertical direction, the wedge surface of voussoir 6 will promote slide unit 5 by vertical inclined-plane 5a and walk crosswise slip, drive the punching press action that drift C carries out horizontal direction simultaneously, the afterbody of described slide unit 5 is connected with elastic parts, elastic parts is comprised of two rubber cushion blocks 11 and biside plate 10, like this when slide unit 5 drive drift C carry out the punching press action, rubber cushion blocks can be compressed, complete when the punching press action of drift C, the rubber cushion blocks elastic recovery drives slide unit and drift C gets back to original position.

The course of work of the present invention is (with reference to Fig. 8): in the feeding-passage 1 of commutator segment drawing wires through bed die, then press the punching press switch of punch press, the punch press unit head drives drift A, drift B and voussoir moves downward the punching press action of carrying out vertical direction, voussoir 6 promotes slide unit 5 and walks crosswise slip simultaneously, drives the punching press action that drift C carries out horizontal direction simultaneously; Drift C is with the dovetail pin 1b punch forming of commutator segment, and drift B is with the head 1a punch forming of commutator segment, and drift A carries out the punching press severing to the thread-changing sheet, so the present invention has just realized the once punch forming fast of commutator segment, has improved production efficiency.Because the punching press severing is that radial direction (in Fig. 2 shown in the direction of arrow) at commutator segment is carried out, and the commutator segment thinner thickness that the party makes progress, so two of the commutator segment of punching press severing is stressed less, be not easy flexural deformation, the Forming Quality of commutator segment can be effectively guaranteed, Forming Quality.

Claims

1. commutator bar stamping die, comprise drift and blurt out, it is characterized in that: the bed die of punch die (2) has a feeding-passage (1) that vertically arranges, the facade shape of feeding-passage (1) is identical with the shape of cross section of thread-changing sheet drawing wires, blurt out and be located on described bed die (2), described blurting out comprises a that blurts out, b and the c that blurts out blurt out, a and blurt out b in the vertical direction setting perpendicular to feeding-passage (1) blurts out, blurt out c in the horizontal direction setting perpendicular to feeding-passage (1), the drift that correspondence is blurted out is respectively drift A, drift B and drift C, drift A and drift B vertically arrange, drift C horizontally set.

2. a kind of commutator bar stamping die as claimed in claim 1, it is characterized in that: drift A and drift B fixedly mount at punch fixing plate (9), punch fixing plate (9) is moved up and down by the unit head drive of punch press, drift C fixedly mounts at slide unit (5), slide unit (5) arranges upper laterally slip of bed die fixed head (3), slide unit (5) has vertical inclined-plane (5a), the voussoir (6) of the vertical inclined-plane of slide unit (5a) setting is fixed on punch fixing plate or installs on the punch die top board (7) of punch fixing plate relatively, unit head drive drift A when punch press, drift B and voussoir (6) move downward when carrying out the punching press action, the wedge surface of voussoir (6) promotes slide unit (5) by vertical inclined-plane (5a) and walks crosswise slip, drive drift C and carry out simultaneously the punching press action.