CN110180953A - Drawing die and the punching and edge-cutting technique for using it - Google Patents

Abstract

The application discloses a stretching die, which includes an upper die and a lower die. The upper mold includes an upper base plate, an upper mold base plate, and an upper backing plate that connects the upper base plate and the upper mold base plate; the lower mold includes a lower mold base, a lower base plate, and connects the lower mold base plate and the Describe the lower backing plate of the lower bottom plate. Wherein, the upper mold further includes an upper pushing block, which is arranged on the first side of the lower bottom plate close to the upper bottom plate; an upper pressing plate, which is arranged on the second side of the lower bottom plate away from the upper bottom plate; The inner stripping plate is arranged around the upper pressing plate; and the upper pushing block is arranged around the upper inner pushing plate. The lower mold further includes a concave mold, which is arranged on the side of the lower mold base close to the upper mold; a lower inner stripper plate, which is arranged around the concave mold; and a slider, which is arranged around the lower inner stripper. plate.

Description

Drawing die and stamping trimming process using it

technical field

The invention relates to the technical field of punching, in particular to a stretching die and a punching and trimming process using the same.

Background technique

With the popularization of energy saving and emission reduction in the country, new energy vehicles are vigorously developed, and the demand for transmission wheel end covers is also greatly increased. The production of this type of products is mainly completed by the stamping and adding machine trimming process. In order to improve production efficiency and reduce production costs, This application discloses a stretching die and its precision trimming process for stamping, which subverts the traditional process, and integrates the traditional stamping and edge trimming process into the stamping process, and the precise trimming of the product can be completed during the stamping process. side. The application realizes the combination of stamping and several vehicle processes, thereby reducing the amount of equipment used, eliminating the transportation and production auxiliary time between stamping and several vehicles, improving the utilization rate of workshop space, and greatly reducing the production cost of products.

Contents of the invention

The purpose of this application is to provide a stretching die to overcome the deficiencies in the prior art.

In order to achieve the above object, the application provides the following technical solutions:

A kind of drawing die, comprises patrix and lower mold, and described patrix comprises upper bottom plate, patriarch bottom plate, and the upper backing plate that connects described upper bottom plate and described patrix bottom plate; Described lower mold includes lower mold base , the lower base plate, and the lower backing plate connecting the lower mold base plate and the lower base plate; the upper mold further includes:

an upper pushing block, arranged on the first side of the lower bottom plate close to the upper bottom plate;

The upper pressing plate is arranged on the second side of the lower base plate away from the upper base plate;

The upper inner stripping plate is arranged around the upper pressing plate; and,

The upper push block is arranged around the upper inner push plate;

The lower mold further includes:

A concave mold is arranged on the side of the lower mold base close to the upper mold;

The lower inner stripping plate is arranged around the die;

a slider disposed around said lower inner stripping plate; and,

The sliding blade is arranged on the lower inner stripping plate, and is pushed by the slider to move relative to the lower inner stripping plate.

Preferably, the concave mold has a shape matched with the upper pressing plate.

Preferably, at least one protrusion is provided on the upper pressing plate.

Preferably, the at least one protrusion has the same shape, or the at least one protrusion has different shapes.

Preferably, at least one first groove is opened on the die, and the at least one first groove is arranged opposite to the at least one protrusion; so that the upper pressing plate and the first groove are pressed When appropriate, the first groove accommodates the protrusion.

Preferably, the above-mentioned stretching die further includes a lower ejector plate disposed on a side of the lower die base away from the upper die.

Preferably, a second groove is opened on the bottom plate of the upper mold, and the second groove is arranged opposite to the slider; so that when the upper mold and the lower mold are pressed together, the second groove Holds the slider.

The present invention also provides a stamping trimming process using the above drawing die, comprising the following steps:

placing the workpiece on the lower inner stripping plate of the drawing die;

Pressing the upper mold and the lower mold, so that the upper pressing plate and the concave mold cooperate to press the workpiece.

Preferably, the step of pressing the upper mold and the lower mold includes a sub-step: when pressing the upper mold and the lower mold, the slider drives the sliding blade to cut the workpiece side.

Preferably, the trimming of the workpiece by the slider is radial trimming.

Compared with the prior art, the present invention has the advantages of:

The drawing die provided by this application has overturned the traditional process. The traditional stamping and multi-car trimming process is integrated into the stamping process. The precise edge trimming of the product can be completed during the stamping process, and the stamping and multi-car process can be combined, thereby reducing the cost. The amount of equipment used eliminates the transportation and production auxiliary time between stamping vehicles, and at the same time improves the utilization rate of the workshop space, greatly reduces the production cost of the product, and makes the product more market-competitive.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art; obviously, the accompanying drawings in the following description are only These are some embodiments described in this application, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a cross-sectional view of a drawing die according to an embodiment of the present application when it is in working condition;

Fig. 2 is a cross-sectional view of the drawing die according to an embodiment of the present application after the work is finished;

Fig. 3 is a workpiece produced according to one embodiment of the present application.

Explanation of reference numbers:

1. Upper bottom plate, 2. Upper backing plate, 3. Upper pushing block, 4. Upper pressing block, 41. Protrusion, 5. Upper inner stripping plate, 6. Upper pushing block, 7. Upper die bottom plate, 701 . The second groove, 8. workpiece, 9. lower inner stripping plate, 10. die, 101. the first groove, 11. slider, 111. sliding blade, 112. fixed blade, 12. lower mold base, 13. Lower top plate, 14. Lower backing plate, 15. Lower bottom plate.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. . Given the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

Fig. 1 shows a cross-sectional view of a drawing die in a working state according to an embodiment of the present application. Fig. 2 shows a cross-sectional view of the drawing die according to an embodiment of the present application after the work is completed. As shown in Figures 1 and 2, a stretching die according to an embodiment of the present application includes an upper die and a lower die, and the upper die includes an upper base plate 1, an upper die base plate 7, and connects the upper base plate 1 and the lower die. The upper backing plate 2 of the upper die base plate 7; the lower die includes a lower die base 12, a lower base plate 15, and a lower backing plate 14 connecting the lower die base plate 12 and the lower base plate 5. Wherein, the upper mold further includes an upper pushing block 3, which is arranged on the first side of the lower bottom plate 1 close to the upper bottom plate 1; an upper pressing plate 4, which is arranged on the lower bottom plate 1 away from the upper bottom plate 1 The second side of the upper inner stripping plate 5 is arranged around the upper pressing plate 4 ; and the upper pushing block 6 is arranged around the upper inner pushing plate 5 . The lower die further comprises: a die 10, arranged on the side of the lower die base 12 close to the upper die; a lower inner stripping plate 9, arranged around the die 10; a slider 11, arranged around The lower inner stripping plate 9 ; and, the sliding blade 111 is arranged on the lower inner stripping plate 9 and is pushed by the slider 11 to move relative to the lower inner stripping plate 9 . According to an embodiment of the present application, the lower mold may further include a fixed blade 112, which is arranged on the lower inner stripping plate 9; the fixed blade 112 cooperates with the sliding blade 111, when the upper pressing plate 4 and When the first groove 10 is pressed together, the workpiece is cut.

Continuing to refer to FIG. 1 and FIG. 2 , according to an embodiment of the present application, the concave mold 10 may have a shape matched with the upper pressing plate 4 . Preferably, at least one protrusion 41 is provided on the upper pressing plate 4 . According to an embodiment of the present application, the at least one protrusion 41 has the same shape, or the at least one protrusion 41 has different shapes.

According to an embodiment of the present application, preferably, the die 10 is provided with at least one first groove 101, and the at least one first groove 101 is arranged opposite to the at least one protrusion 41; so that the When the upper pressing plate 4 is pressed together with the first groove 10 , the first groove 101 accommodates the protrusion 41 .

According to another embodiment of the present application, it further includes a lower ejector plate 13 disposed on the side of the lower mold base 12 away from the upper mold.

According to an embodiment of the present application, a second groove 701 is opened on the bottom plate 7 of the upper mold, and the second groove 701 is arranged opposite to the slider 11; so that the upper mold and the lower mold press When appropriate, the second groove 701 accommodates the slider 11 .

The application also discloses a punching and trimming process using any one of the drawing dies, comprising the following steps:

(1) placing the workpiece on the lower inner stripping plate 9 of the drawing die;

(2) Pressing the upper mold and the lower mold so that the upper pressing plate 4 and the concave mold 9 cooperate to press the workpiece 8 .

According to an embodiment of the present application, the step (1) includes a sub-step: when pressing the upper die and the lower die, the slider 11 pushes the sliding blade 111 to trim the workpiece 8, so The obtained workpiece 8 can be shown in FIG. 3 .

According to an embodiment of the present application, the trimming of the workpiece 8 by the slider 11 is a radial trimming.

Claims (10)

1. a drawing die, comprising patrix and counterdie, described patrix comprises upper base plate, patrix base plate, and connects the upper backing plate of described upper base plate and described patrix base plate; Described counter mold comprises lower plate A mold base, a lower base plate, and a lower backing plate connecting the lower mold base plate and the lower base plate; it is characterized in that, The upper mold further includes: an upper pushing block, arranged on the first side of the lower bottom plate close to the upper bottom plate; The upper pressing plate is arranged on the second side of the lower base plate away from the upper base plate; The upper inner stripping plate is arranged around the upper pressing plate; and, The upper push block is arranged around the upper inner push plate; The lower mold further includes: A concave mold is arranged on the side of the lower mold base close to the upper mold; The lower inner stripping plate is arranged around the die; a slider disposed around said lower inner stripping plate; and, The sliding blade is arranged on the lower inner stripping plate, and is pushed by the slider to move relative to the lower inner stripping plate. 2. The drawing die according to claim 1, wherein the concave die has a shape matching the upper pressing plate. 3. The drawing die according to claim 2, characterized in that at least one protrusion is provided on the upper pressing plate. 4. The drawing die according to claim 3, wherein the at least one protrusion has the same shape, or the at least one protrusion has a different shape. 5. The drawing die according to claim 3 or 4, wherein at least one first groove is provided on the die, and the at least one first groove is opposite to the at least one protrusion ; so that when the upper pressing plate and the first groove are pressed together, the first groove accommodates the protrusion. 6 . The drawing die according to claim 1 , further comprising a lower ejector plate disposed on a side of the lower die base away from the upper die. 7 . 7. The drawing die according to claim 1, wherein a second groove is provided on the bottom plate of the upper mold, and the second groove is arranged opposite to the slider; so that the upper mold When press-fitted with the lower mold, the second groove accommodates the slider. 8. A stamping trimming process using the drawing die described in any one of claims 1-7, characterized in that it comprises the following steps: (1) placing the workpiece on the lower inner stripping plate of the drawing die; (2) Pressing the upper die and the lower die so that the upper pressing plate and the die cooperate to press the workpiece. 9. The stamping and trimming process according to claim 8, characterized in that the step (1) includes a sub-step: when pressing the upper die and the lower die, the slider drives the sliding blade Edge trimming is performed on the workpiece. 10 . The stamping edge trimming process according to claim 9 , wherein the trimming of the workpiece by the slider is radial trimming. 11 .