CN211990522U - Progressive stamping die of dual-power automatic transfer switch bracket - Google Patents

Abstract

The utility model relates to the field of progressive dies, in particular to a progressive stamping die of a dual-power automatic transfer switch bracket, which comprises a die carrier, wherein a punching die, a first bending die, a second bending die, a third bending die and a cutting die are sequentially arranged in the die carrier along the material feeding direction; the working surfaces of the first bending die and the second bending die take a horizontal plane as a starting point and a vertical plane below the horizontal plane as an end point; the working surface of the third bending die takes the vertical surface as a starting point and takes a horizontal surface above the vertical surface as an end point; the technical scheme solves the problems of multiple working procedures and low production efficiency of the traditional process for producing the switch bracket.

Description

Progressive stamping die of dual-power automatic transfer switch bracket

Technical Field

The utility model relates to a modulus of continuity field specifically is a progressive stamping die who relates to a dual supply automatic transfer switch support.

Background

The single motor conversion transmission mechanism in the existing automatic transfer switching electric appliance comprises a bracket for fixing a motor, the motor, two levers, a rotary table, a shaft sleeve for connecting the rotary table and the motor, a shaft sleeve and a shaft pin for connecting the shaft sleeve and a motor output shaft, wherein the shaft pin is fixedly connected, the rotary table is arranged in the center, the levers are symmetrically arranged at two sides of the rotary table, the motor rotates to drive the rotary table to rotate, and the rotary table shaft on the rotary table drives the levers to move.

The existing production process of the switch bracket in the automatic transfer switch electric appliance is complex, the material belt needs to be subjected to six processes of sizing, blanking, primary bending, secondary bending, tertiary bending and quartic bending, and the processing efficiency is low and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a progressive stamping die of dual supply automatic transfer switch support is provided, this technical scheme has solved that traditional technology production switch support process is many, problem that production efficiency is low.

In order to solve the technical problem, the utility model provides a following technical scheme:

a progressive stamping die of a dual-power automatic transfer switch bracket is applied to stamping a material belt into a switch bracket and comprises a die carrier, wherein a punching die, a first bending die, a second bending die, a third bending die and a cutting die are sequentially arranged in the die carrier along the material feeding direction; the working surfaces of the first bending die and the second bending die take a horizontal plane as a starting point and a vertical plane below the horizontal plane as an end point; the working surface of the third bending die starts from the vertical surface and ends at the horizontal surface located above the vertical surface.

Preferably, the die carrier is including last die carrier, stand, lower die carrier, first fly leaf, second fly leaf, third fly leaf, stand evenly distributed is in the edge of last die carrier, goes up die carrier and lower die carrier parallel arrangement and through stand fixed connection, first fly leaf, second fly leaf, third fly leaf set up in last die carrier and lower die carrier between and with stand sliding connection, go up the die carrier, first fly leaf, second fly leaf, third fly leaf, lower die carrier order range, first fly leaf and second fly leaf elastic connection, third fly leaf and lower die carrier elastic connection.

Preferably, the punching die comprises a first male die and a first female die, the first male die is fixedly mounted on the bottom surface of the first movable plate, the first female die is fixedly mounted on the top surface of the third movable plate, the second movable plate comprises a first pressing plate, the first pressing plate is arranged between the first male die and the first female die, the first pressing plate is elastically connected with the first movable plate, a third through hole for avoiding the working end of the first male die is formed in the first pressing plate, and a fourth through hole for blanking is formed in the third movable plate.

Preferably, the first bending die and the second bending die have the same structure, the first bending die comprises a second male die and a second female die, the second movable plate comprises a second pressing plate, the second pressing plate is elastically connected with the first movable plate, the second female die comprises a fourth movable plate, a fifth movable plate, a first connecting rod and a second connecting rod, the fourth movable plate and the fifth movable plate are respectively arranged on two sides of the second pressing plate and hinged with the second pressing plate, two ends of the first connecting rod are respectively hinged with the first movable plate and the fourth movable plate, two ends of the second connecting rod are respectively hinged with the first movable plate and the fifth movable plate, and the first connecting rod and the second connecting rod both incline towards the direction close to the second male die; in a non-working state, the fourth movable plate, the fifth movable plate and the second pressing plate are parallel; in the working state, the fourth movable plate and the fifth movable plate are both vertical to the second pressing plate.

Preferably, the second movable plate is provided with a first pin extending towards the first movable plate, the first pin penetrates through the first movable plate, the first movable plate is provided with a fifth through hole through which the rod part of the first pin can penetrate and the cap part of the first pin cannot penetrate, the first pin is sleeved with a first spring, and two ends of the first spring are respectively abutted against the first movable plate and the second movable plate.

Preferably, the third bending die comprises a third male die and a third female die, the second movable plate comprises a third pressure plate, the third female die is arranged on the third pressure plate, the third male die comprises a sixth movable plate, a seventh movable plate, an eighth movable plate, a third connecting rod and a fourth connecting rod, the sixth movable plate is fixedly arranged on the top surface of the third movable plate, the seventh movable plate and the eighth movable plate are respectively arranged on two sides of the sixth movable plate and hinged with the sixth movable plate, two ends of the third connecting rod are respectively hinged with the lower die frame and the seventh movable plate, two ends of the fourth connecting rod are respectively hinged with the lower die frame and the eighth movable plate, and the third connecting rod and the fourth connecting rod are inclined towards the direction far away from the third male die; in a non-working state, the seventh movable plate and the eighth movable plate are both vertical to the sixth movable plate; in the working state, the sixth movable plate, the seventh movable plate and the eighth movable plate are parallel.

Preferably, the lower die frame is fixedly provided with a second pin and a stop piece, the second pin extends towards the third movable plate, the second pin penetrates through the third movable plate, the third movable plate is provided with a sixth through hole through which a rod part of the second pin can penetrate and an emitting part of the second pin cannot penetrate, the non-fixed end of the stop piece is located between the third movable plate and the lower die frame, the lower die frame further comprises a second spring sleeved on each upright column, and two ends of the second spring are respectively abutted against the third movable plate and the lower die frame.

Preferably, the cutting die comprises a fourth male die and a fourth female die, the fourth male die is elastically connected with the lower die frame, and the fourth female die is fixedly connected with the first movable plate.

Compared with the prior art, the utility model beneficial effect who has is:

the material belt is a long strip-shaped steel belt, the switch support is a finished product formed by gradually punching the material belt, the switch support is provided with first through holes which are symmetrical relative to the center line of the switch support, Z-shaped flanges are arranged at the edges of two ends of the switch support, and L-shaped flanges are arranged at the edges of the middle end of the switch support; the die frame is used for installing a punching die, a first bending die, a second bending die, a third bending die and a cutting die; the punching die is used for punching a second through hole on the material belt, and the second through hole comprises a first through hole at the rear half part of the previous switch bracket, a first through hole at the front half part of the next switch bracket and an opening for pre-flanging; the first bending die is used for bending a first forward flanging on the material belt, and the first forward flanging comprises a first flanging of a rear half Z-shaped flanging of a previous switch bracket and a first flanging of a front half Z-shaped flanging of a next switch bracket; the second bending die is used for bending a second forward flanging on the material belt, and the second forward flanging is the L-shaped flanging; the third bending die is used for bending reverse flanges on the material belt, and the reverse flanges comprise second flanges of the Z-shaped flanges of the rear half part of the previous switch bracket and second flanges of the Z-shaped flanges of the front half part of the next switch bracket; the cutting die is used for cutting the material belt, and the section is located the central line of reverse turn-ups to obtain the finished product of switch support.

The die can produce the finished product of the switch bracket at one time and is high in efficiency.

Drawings

FIG. 1 is a perspective view of a switch bracket and a strip of material;

fig. 2 is a perspective view of the present invention;

FIG. 3 is a perspective view of the upper half of the present invention;

fig. 4 is a perspective view of the lower half of the present invention;

fig. 5 is a side view of the present invention;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a sectional view taken along line B-B of FIG. 5;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 5;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 5;

fig. 10 is a top view of the present invention;

FIG. 11 is a sectional view taken along line E-E of FIG. 10;

the reference numbers in the figures are:

1-a switch bracket; 1 a-a first via; 1 b-Z-shaped flanging; 1 c-L-shaped flanging;

2-material belt; 2 a-a second via; 2 b-a first forward flanging; 2 c-second forward flanging; 2 d-reversely flanging;

3-a mould frame; 3 a-upper die carrier; 3 b-a column; 3 c-lower die carrier; 3c1 — second peg; 3c2 — second spring; 3c 3-stop; 3 d-a first flap; 3 e-a second flap; 3e1 — first platen; 3e2 — second platen; 3e3 — first peg; 3e4 — first spring; 3e 5-third platen; 3 f-a third flap;

4-punching a hole; 4 a-a first male die; 4 b-a first female die;

5-a first bending die; 5 a-a second male die; 5 b-a second female die; 5b 1-a fourth flap; 5b 2-fifth flap; 5b3 — first link; 5b 4-second link;

6-a second bending die;

7-a third bending die; 7 a-a third male die; 7a 1-a sixth flap; 7a 2-a seventh flap; 7a 3-an eighth flap; 7a 4-third link; 7a 5-fourth link; 7 b-a third female die; 8-cutting off the die; 8 a-a fourth punch; 8 b-a fourth female die; 8 c-guide post; 8 d-third spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The progressive stamping die for the dual-power automatic transfer switch bracket shown in fig. 1 to 11 is applied to blanking a material belt 2 into a switch bracket 1, and comprises a die carrier 3, wherein a punching die 4, a first bending die 5, a second bending die 6, a third bending die 7 and a cutting die 8 are sequentially arranged in the die carrier 3 along a material feeding direction; the working surfaces of the first bending die 5 and the second bending die 6 take a horizontal plane as a starting point and a vertical plane below the horizontal plane as an end point; the working surface of the third bending die 7 starts from a vertical surface and ends at a horizontal surface located above the vertical surface.

As shown in fig. 1 and 2, the material strip 2 is a long strip steel strip, the switch bracket 1 is a finished product formed by progressively punching the material strip 2, the switch bracket 1 has first through holes 1a symmetrical to the central line of the switch bracket 1, Z-shaped flanges 1b are arranged on the edges of the two ends of the switch bracket 1, and an L-shaped flange 1c is arranged on the edge of the middle end of the switch bracket 1;

the die carrier 3 is used for mounting a punching die 4, a first bending die 5, a second bending die 6, a third bending die 7 and a cutting die 8;

the punching die 4 is used for punching a second through hole 2a on the material belt 2, and the second through hole 2a comprises a first through hole 1a at the rear half part of the previous switch bracket 1, a first through hole 1a at the front half part of the next switch bracket 1 and an opening for pre-flanging;

the first bending die 5 is used for bending a first forward flanging 2b on the material belt 2, and the first forward flanging 2b comprises a first flanging of the rear half Z-shaped flanging 1b of the previous switch bracket 1 and a first flanging of the front half Z-shaped flanging 1b of the next switch bracket 1;

the second bending die 6 is used for bending a second forward flanging 2c on the material belt 2, and the second forward flanging 2c is the L-shaped flanging 1 c;

the third bending die 7 is used for bending a reverse flanging 2d on the material belt 2, wherein the reverse flanging 2d comprises a second flanging of the rear half Z-shaped flanging 1b of the previous switch bracket 1 and a second flanging of the front half Z-shaped flanging 1b of the next switch bracket 1;

and the cutting die 8 is used for cutting the material belt 2, and the section is positioned on the central line of the reverse flanging 2d, so that a finished product of the switch bracket 1 is obtained.

As shown in fig. 3 to 5, the mold frame 3 includes an upper mold frame 3a, a column 3b, a lower mold frame 3c, a first movable plate 3d, a second movable plate 3e, and a third movable plate 3f, the column 3b is uniformly distributed on an edge of the upper mold frame 3a, the upper mold frame 3a and the lower mold frame 3c are arranged in parallel and fixedly connected through the column 3b, the first movable plate 3d, the second movable plate 3e, and the third movable plate 3f are disposed between the upper mold frame 3a and the lower mold frame 3c and slidably connected to the column 3b, the upper mold frame 3a, the first movable plate 3d, the second movable plate 3e, the third movable plate 3f, and the lower mold frame 3c are sequentially arranged, the first movable plate 3d is elastically connected to the second movable plate 3e, and the third movable plate 3f is elastically connected to the lower mold frame 3 c.

The upper die carrier 3a, the upright 3b and the lower die carrier 3c form the basic structure of the die carrier 3, the first movable plate 3d is used for installing the punching die 4 and the cutting die 8 and serves as a push plate, the output end of the driver is fixedly connected with the first movable plate 3d, the second movable plate 3e is used for installing the first bending die 5 and the second bending die 6 and serves as a press plate, and the third movable plate 3f is used for installing the third bending die 7.

As shown in fig. 6, the punching die 4 includes a first male die 4a and a first female die 4b, the first male die 4a is fixedly mounted on a bottom surface of a first movable plate 3d, the first female die 4b is fixedly mounted on a top surface of a third movable plate 3f, the second movable plate 3e includes a first pressing plate 3e1, the first pressing plate 3e1 is disposed between the first male die 4a and the first female die 4b, the first pressing plate 3e1 is elastically connected to the first movable plate 3d, a third through hole for avoiding a working end of the first male die 4a is disposed on the first pressing plate 3e1, and a fourth through hole for blanking is disposed on the third movable plate 3 f.

During operation, the first movable plate 3d drives the first pressing plate 3e1 to move towards the third movable plate 3f, firstly, the first pressing plate 3e1 presses on the material belt 2, then the first movable plate 3d overcomes the resilience force between the first movable plate 3d and the first pressing plate 3e1 to continue moving towards the third movable plate 3f, the working end of the first male die 4a penetrates through the third through hole and the working end of the first female die 4b to punch the second through hole 2a on the material belt 2, the punched waste material is separated from the die through the fourth through hole, the punching die is already popular in the die industry, and the specific structure of the punching die is not described herein.

As shown in fig. 7, the first bending die 5 and the second bending die 6 have the same structure, the first bending die 5 includes a second male die 5a and a second female die 5b, the second movable plate 3e includes a second pressing plate 3e2, the second pressing plate 3e2 is elastically connected with the first movable plate 3d, the second female die 5b includes a fourth movable plate 5b1, a fifth movable plate 5b2, a first connecting rod 5b3 and a second connecting rod 5b4, the fourth movable plate 5b1 and the fifth movable plate 5b2 are respectively disposed at two sides of the second pressing plate 3e2 and are hinged with the second pressing plate 3e2, two ends of the first connecting rod 5b3 are respectively hinged with the first movable plate 3d and the fourth movable plate 5b1, two ends of the second connecting rod 5b4 are respectively hinged with the first movable plate 3d and the fifth movable plate 5b2, and the first connecting rod 5b3 and the second connecting rod 5b4 are both inclined towards the direction of the second male die 5 a; in the non-working state, the fourth movable plate 5b1, the fifth movable plate 5b2 and the second pressing plate 3e2 are parallel; in the working state, the fourth movable plate 5b1 and the fifth movable plate 5b2 are perpendicular to the second pressing plate 3e 2.

In operation, the first movable plate 3d drives the second pressing plate 3e2 to move toward the third movable plate 3f, first, the second pressing plate 3e2 presses on the material strip 2, then the first movable plate 3d overcomes the resilience between the first movable plate 3d and the second pressing plate 3e2 to continue moving toward the third movable plate 3f, the first movable plate 3d drives the fourth movable plate 5b1 and the fifth movable plate 5b2 to rotate toward the second male die 5a through the first connecting rod 5b3 and the second connecting rod 5b4, so that the fourth movable plate 5b1, the fifth movable plate 5b2 and the second pressing plate 3e2 are turned into a shape matched with the second male die 5a, and the material strip 2 is bent out of the first forward turned edge 2b by the second male die 5a and the second female die 5 b.

The second bending die 6 also bends the second forward turned edge 2c by the same structure and method, and the first bending die 5 and the second bending die 6 are different only in size and position.

The second movable plate 3e is provided with a first pin 3e3 extending toward the first movable plate 3d, the first pin 3e3 penetrates through the first movable plate 3d, the first movable plate 3d is provided with a fifth through hole through which a rod of the first pin 3e3 can pass and a cap of the first pin 3e3 cannot pass, the first pin 3e3 is sleeved with a first spring 3e4, and two ends of the first spring 3e4 abut against the first movable plate 3d and the second movable plate 3e respectively.

As shown in fig. 6 and 7, the first pin 3e3 and the first spring 3e4 are used for elastically connecting the first movable plate 3d and the second movable plate 3e, the first spring 3e4 is used for driving the second movable plate 3e to move toward a direction away from the first movable plate 3d, and the first pin 3e3 is used for limiting the maximum distance between the first movable plate 3d and the second movable plate 3 e.

As shown in fig. 8, the third bending die 7 includes a third male die 7a and a third female die 7b, the second movable plate 3e includes a third pressing plate 3e5, the third female die 7b is disposed on the third pressing plate 3e5, the third male die 7a includes a sixth movable plate 7a1, a seventh movable plate 7a2, an eighth movable plate 7a3, and a third connecting rod 7a4, a fourth link 7a5, wherein a sixth movable plate 7a1 is fixedly mounted on the top surface of the third movable plate 3f, a seventh movable plate 7a2 and an eighth movable plate 7a3 are respectively disposed at two sides of the sixth movable plate 7a1 and hinged to the sixth movable plate 7a1, two ends of the third link 7a4 are respectively hinged to the lower mold frame 3c and the seventh movable plate 7a2, two ends of the fourth link 7a5 are respectively hinged to the lower mold frame 3c and the eighth movable plate 7a3, and both the third link 7a4 and the fourth link 7a5 are inclined toward a direction away from the third punch 7 a; in the inactive state, the seventh movable plate 7a2 and the eighth movable plate 7a3 are both perpendicular to the sixth movable plate 7a 1; in the working state, the sixth movable plate 7a1, the seventh movable plate 7a2, and the eighth movable plate 7a3 are parallel.

In operation, the first flap 3d drives the third presser plate 3e5 to move toward the third flap 3f, first, the third presser plate 3e5 presses on the material belt 2, then the first flap 3d continues to move toward the third flap 3f against the resilience between the first flap 3d and the third presser plate 3e5, after the minimum distance between the first flap 3d and the third presser plate 3e5 is reached, the first flap 3d and the third presser plate 3e5 continue to move together toward the third flap 3f, the third flap 3f approaches toward the lower mold frame 3c against the resilience between the third flap 3f and the lower mold frame 3c, the third link 7a4 and the fourth link 7a5 respectively drive the seventh flap 7a2 and the eighth flap 7a3 to rotate toward the third cavity die 7b, so that the sixth flap 7a1, the seventh flap 7a2 and the eighth flap 7a3 are folded into the shape of the cavity of the third flap 7b, so that the material belt 2 is bent to form the reverse flanging 2d by the third male die 7a and the third female die 7 b.

As shown in fig. 10 and 11, a second pin 3c1 and a stopper 3c3 extending toward the third movable plate 3f are fixedly mounted on the lower mold frame 3c, the second pin 3c1 penetrates through the third movable plate 3f, a sixth through hole is formed in the third movable plate 3f, through which the rod portion of the second pin 3c1 can pass but the cap portion of the second pin 3c1 cannot pass, a non-fixed end of the stopper 3c3 is located between the third movable plate 3f and the lower mold frame 3c, the lower mold frame 3c further includes a second spring 3c2 sleeved on each upright post 3b, and two ends of the second spring 3c2 abut against the third movable plate 3f and the lower mold frame 3c, respectively.

The second spring 3c2 is used to drive the third movable plate 3f to move away from the lower mold frame 3c, the stopper 3c3 is used to limit the minimum distance between the lower mold frame 3c and the third movable plate 3f, and the second pin 3c1 is used to limit the maximum distance between the lower mold frame 3c and the third movable plate 3 f.

As shown in fig. 9, the cutting die 8 includes a fourth male die 8a and a fourth female die 8b, the fourth male die 8a is elastically connected with the lower die frame 3c, and the fourth female die 8b is fixedly connected with the first movable plate 3 d.

The fourth female die 8b is fixedly mounted at the bottom of the first movable plate 3d, a guide pillar 8c in sliding fit with the lower die frame 3c is arranged at the bottom of the fourth male die 8a, and a third spring 8d, two ends of which are respectively abutted against the fourth male die 8a and the lower die frame 3c, is sleeved on the guide pillar 8 c. In operation, the first movable plate 3d drives the second movable plate 3e to move towards the third movable plate 3f, the fourth male die 8a moves towards the lower die carrier 3c along with the third movable plate 3f against the resilience force, the third movable plate 3f is prevented by the stop piece 3c3 from stopping moving, the fourth male die 8a and the fourth female die 8b continue to clamp the material strip 2 to move downwards, and the material strip 2 is cut by the fourth male die 8a and the fourth female die 8 b.

The utility model discloses a theory of operation:

the material belt 2 is a long strip steel belt, the switch support 1 is a finished product formed by gradually punching the material belt 2, the switch support 1 is provided with a first through hole 1a which is symmetrical relative to the central line of the switch support 1, the edges of two ends of the switch support 1 are provided with Z-shaped flanges 1b, the edge of the middle end of the switch support 1 is provided with an L-shaped flange 1c, and the die carrier 3 is used for installing a punching die 4, a first bending die 5, a second bending die 6, a third bending die 7 and a cutting die 8;

when in work:

firstly, the first movable plate 3d drives the first pressing plate 3e1, the second pressing plate 3e2, the third pressing plate 3e5 and the fourth male die 8a to move towards the third movable plate 3f, firstly, the first pressing plate 3e1, the second pressing plate 3e2 and the third pressing plate 3e5 are pressed on the material belt 2, then the first movable plate 3d overcomes the resilience force between the first movable plate 3d and the second movable plate 3e to continuously move towards the third movable plate 3f, and after the minimum distance between the first movable plate 3d and the third pressing plate 3e5 is reached, the third movable plate 3f and the fourth female die 8b respectively overcome the resilience force between the third movable plate 3f, the fourth female die 8b and the lower die frame 3c to approach towards the lower die frame 3 c;

then, the working end of the first male die 4a penetrates through the third through hole and the working end of the first female die 4b so as to punch a second through hole 2a on the material belt 2, and the punched waste material is separated from the die through a fourth through hole; the first movable plate 3d drives the fourth movable plate 5b1 and the fifth movable plate 5b2 to rotate towards the second male die 5a through the first link 5b3 and the second link 5b4, so that the fourth movable plate 5b1, the fifth movable plate 5b2 and the second pressure plate 3e2 are turned into a shape matched with the second male die 5a, and the material belt 2 is bent out of the first forward flanging 2b by the second male die 5a and the second female die 5 b; the third link 7a4 and the fourth link 7a5 respectively drive the seventh movable plate 7a2 and the eighth movable plate 7a3 to rotate towards the third female die 7b, so that the sixth movable plate 7a1, the seventh movable plate 7a2 and the eighth movable plate 7a3 are folded into a shape matched with the third female die 7b, and the strip 2 is bent out of the reverse flanging 2d by the third male die 7a and the third female die 7 b;

then, the third flap 3f is stopped by the stopper 3c3, the fourth punch 8a and the fourth die 8b continue to move downward while sandwiching the tape 2, and the tape 2 is cut by the fourth punch 8a and the fourth die 8 b.

Claims (8)

1. A progressive stamping die of a dual-power automatic transfer switch bracket is applied to blanking a material belt (2) into a switch bracket (1), and is characterized by comprising a die carrier (3), wherein a punching die (4), a first bending die (5), a second bending die (6), a third bending die (7) and a cutting die (8) are sequentially arranged in the die carrier (3) along a material feeding direction; the working surfaces of the first bending die (5) and the second bending die (6) take a horizontal plane as a starting point and a vertical plane below the horizontal plane as an end point; the working surface of the third bending die (7) takes the vertical surface as a starting point and takes the horizontal surface positioned above the vertical surface as an end point.

2. The progressive stamping die of the dual-power automatic transfer switch bracket as claimed in claim 1, wherein the die carrier (3) comprises an upper die carrier (3a), a stand column (3b), a lower die carrier (3c), a first movable plate (3d), a second movable plate (3e) and a third movable plate (3f), the stand column (3b) is uniformly distributed on the edge of the upper die carrier (3a), the upper die carrier (3a) and the lower die carrier (3c) are arranged in parallel and fixedly connected through the stand column (3b), the first movable plate (3d), the second movable plate (3e) and the third movable plate (3f) are arranged between the upper die carrier (3a) and the lower die carrier (3c) and are slidably connected with the stand column (3b), and the upper die carrier (3a), the first movable plate (3d), the second movable plate (3e), the third movable plate (3f), The lower die carriers (3c) are arranged in sequence, the first movable plate (3d) is elastically connected with the second movable plate (3e), and the third movable plate (3f) is elastically connected with the lower die carriers (3 c).

3. The progressive stamping die of the dual-power automatic transfer switch bracket according to claim 2, wherein the punching die (4) comprises a first male die (4a) and a first female die (4b), the first male die (4a) is fixedly mounted on the bottom surface of a first movable plate (3d), the first female die (4b) is fixedly mounted on the top surface of a third movable plate (3f), the second movable plate (3e) comprises a first pressing plate (3e1), the first pressing plate (3e1) is arranged between the first male die (4a) and the first female die (4b), the first pressing plate (3e1) is elastically connected with the first movable plate (3d), a third through hole for avoiding the working end of the first male die (4a) is formed in the first pressing plate (3e1), and a fourth through hole for blanking is formed in the third movable plate (3 f).

4. The progressive stamping die of the dual-power automatic transfer switch bracket as claimed in claim 2, wherein the first bending die (5) and the second bending die (6) have the same structure, the first bending die (5) comprises a second male die (5a) and a second female die (5b), the second movable plate (3e) comprises a second pressing plate (3e2), the second pressing plate (3e2) is elastically connected with the first movable plate (3d), the second female die (5b) comprises a fourth movable plate (5b1), a fifth movable plate (5b2), a first connecting rod (5b3) and a second connecting rod (5b4), the fourth movable plate (5b1) and the fifth movable plate (5b2) are respectively arranged on two sides of the second pressing plate (3e2) and hinged to the second pressing plate (3e2), and two ends of the first connecting rod (5b3) are respectively located on the first movable plate (3d), The fourth movable plate (5b1) is hinged, the two ends of the second connecting rod (5b4) are hinged to the first movable plate (3d) and the fifth movable plate (5b2), and the first connecting rod (5b3) and the second connecting rod (5b4) are inclined towards the direction close to the second male die (5 a); in the non-working state, the fourth movable plate (5b1), the fifth movable plate (5b2) and the second pressure plate (3e2) are parallel; in the working state, the fourth movable plate (5b1) and the fifth movable plate (5b2) are perpendicular to the second pressure plate (3e 2).

5. The progressive stamping die of the dual power supply automatic transfer switch bracket according to any one of claims 3 or 4, wherein the second movable plate (3e) is provided with a first pin (3e3) extending towards the first movable plate (3d), the first pin (3e3) penetrates through the first movable plate (3d), the first movable plate (3d) is provided with a fifth through hole through which a rod portion of the first pin (3e3) can pass and a cap portion of the first pin (3e3) cannot pass, the first pin (3e3) is sleeved with a first spring (3e4), and two ends of the first spring (3e4) abut against the first movable plate (3d) and the second movable plate (3e) respectively.

6. The progressive stamping die of the dual-power automatic transfer switch bracket of claim 2, wherein the third bending die (7) comprises a third male die (7a) and a third female die (7b), the second movable plate (3e) comprises a third pressing plate (3e5), the third female die (7b) is disposed on the third pressing plate (3e5), the third male die (7a) comprises a sixth movable plate (7a1), a seventh movable plate (7a2), an eighth movable plate (7a3), a third connecting rod (7a4) and a fourth connecting rod (7a5), the sixth movable plate (7a1) is fixedly mounted on the top surface of the third movable plate (3f), the seventh movable plate (7a2) and the eighth movable plate (7a3) are respectively disposed on two sides of the sixth movable plate (7a1) and hinged to the sixth movable plate (7a1), and two ends of the third connecting rod (7a4) are respectively disposed on the lower die frame (3c), The seventh movable plate (7a2) is hinged, two ends of the fourth connecting rod (7a5) are hinged to the lower die frame (3c) and the eighth movable plate (7a3), and the third connecting rod (7a4) and the fourth connecting rod (7a5) are inclined towards the direction away from the third male die (7 a); in the non-working state, the seventh movable plate (7a2) and the eighth movable plate (7a3) are both perpendicular to the sixth movable plate (7a 1); in the working state, the sixth movable plate (7a1), the seventh movable plate (7a2) and the eighth movable plate (7a3) are parallel.

7. The progressive stamping die of the dual-power automatic transfer switch bracket as claimed in claim 6, the lower die carrier (3c) is fixedly provided with a second pin (3c1) and a stop piece (3c3) which extend towards the direction of a third movable plate (3f), the second pin (3c1) penetrates through the third movable plate (3f), the third movable plate (3f) is provided with a sixth through hole through which a rod part of the second pin (3c1) can penetrate and a cap part of the second pin (3c1) cannot penetrate, the non-fixed end of the stop piece (3c3) is positioned between the third movable plate (3f) and the lower die carrier (3c), the lower die carrier (3c) further comprises a second spring (3c2) sleeved on each upright post (3b), and two ends of the second spring (3c2) abut against the third movable plate (3f) and the lower die carrier (3c) respectively.

8. The progressive stamping die of the dual-power automatic transfer switch bracket according to claim 2, wherein the cutting die (8) comprises a fourth male die (8a) and a fourth female die (8b), the fourth male die (8a) is elastically connected with the lower die frame (3c), and the fourth female die (8b) is fixedly connected with the first movable plate (3 d).

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