CN112122454A

CN112122454A - Stamping die of automobile floor beam

Info

Publication number: CN112122454A
Application number: CN202010843191.3A
Authority: CN
Inventors: 赖联锋; 唐耀红; 余志远
Original assignee: Ningde Normal University
Current assignee: Ningde Normal University
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2020-12-25

Abstract

The invention provides a stamping die for an automobile floor beam, which comprises a template assembly and a pressing plate, wherein a guide pillar is arranged on an upper template or a lower template of the template assembly, the template assembly is provided with a stamping module, the pressing plate is arranged on the upper template, and a male die of the stamping module penetrates through the pressing plate to be matched with a female die for stamping. When punching press, through the cooperation of the die of multiunit and terrace die, can carry out the punching press of different functions to panel, for example the punching press appearance, punch a hole and the punching press is tailor etc. reach and all can produce a stamping workpiece at every punching press, improve the efficiency of punching press. And the pressing plate and the top support can prevent the plate from moving during stamping, and the female die and the male die can be conveniently separated after the stamping is finished, so that the stamping precision and efficiency are improved.

Description

Stamping die of automobile floor beam

Technical Field

The invention relates to the field of dies, in particular to a stamping die for a cross beam of an automobile floor.

Background

Stamping is a method for completing plastic forming of metal, in which a press and a die are used to apply external force to a plate material to deform and separate the plate material to obtain a desired part, i.e., a stamped part. The existing stamping adopts many cold stamping modes, the size of a stamping part manufactured by cold stamping generally cannot be different greatly, the precision is also very high, and in actual production, the stamping is very convenient and fast, and the stamping is very convenient and fast and the efficiency is also high due to the fact that the stamping can be carried out at normal temperature. The die is a device for manufacturing qualified stamping parts, and the plate can become the required stamping part under the action of external force.

Most stamping parts are stamped by a plurality of working procedures, and then the stamping parts are completed. The existing mode adopts a plurality of stamping devices or dies to carry out stamping forming, and then the efficiency has great influence again. Meanwhile, the stamping of a plurality of devices or dies has large mechanical error, and the stamping precision is not easy to control, so that the precision of automobile manufacturing is influenced.

Disclosure of Invention

The invention aims to provide a stamping die for a cross beam of an automobile floor, which solves the problem that the existing stamping die is low in stamping precision and efficiency.

In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows: a stamping die for an automobile floor beam comprises:

the stamping die comprises a die plate assembly, a lower die plate and a stamping die, wherein guide pillars are arranged on the upper die plate or the lower die plate, the upper die plate slides along the guide pillars to be far away from or close to the lower die plate, a stamping die group matched with a female die and a male die is arranged on the die plate assembly, and the stamping die group at least comprises two groups of stamped male dies and female dies; and

the pressing plate is arranged on the upper die plate in a sliding mode relative to the upper die plate, a male die of the stamping die set penetrates through the pressing plate to be matched with the female die for stamping, and the pressing plate is used for jacking the stamped plate.

Preferably, the stamping module comprises a drawing module, a punching module and a blanking module which are sequentially arranged on the template assembly; when the upper template is attached to the lower template, the drawing module draws plates, the punching module punches holes in the drawn plates, and the blanking module cuts off the punched plates.

Preferably, the external male die of the drawing module is arranged on the upper template, and the external female die of the drawing module is arranged on the lower template.

Preferably, the punching module comprises a punching column for punching the plate and a jacking column for jacking the plate, a jacking spring is sleeved on the jacking column between the upper template and the pressing plate, and the upper template is provided with a movable cavity for the jacking column to slide.

Preferably, the blanking module comprises a contour cutter arranged on the upper template and a blanking hole penetrating through the lower template, the contour cutter is matched with the blanking hole to cut a floor beam, and the floor beam falls out of the stamping die along the blanking hole.

Preferably, the lower die plate on both sides of the punching module is respectively provided with a pressing convex surface, the pressing convex surface facing the drawing module extends and abuts against the drawing module, and the pressing convex surface facing the blanking module extends and abuts against the blanking module.

Preferably, the female die is fixedly arranged on the lower template, and a limit block is arranged on the lower template along the periphery of the female die.

Preferably, the pressure plate comprises at least two spring bolts, and the spring bolts penetrate through the pressure plate and are fixedly arranged on the upper template.

Preferably, the upper template and/or the lower template are provided with height limiting columns.

Preferably, the female die is provided with a discharging column and a placing cavity for containing the discharging column, one end of the discharging column penetrates through the placing cavity and is located on the top surface of the female die, and a discharging spring is sleeved on the discharging column located in the placing cavity.

Compared with the prior art, the invention has the following beneficial effects:

1. the drive cope match-plate pattern moves towards the lower bolster along the guide pillar for the terrace die and the die of template subassembly cooperate the punching press, and have the terrace die and the die that are used for the punching press more than two sets of in template subassembly, consequently can carry out the punching press of different functions to panel, for example the punching press appearance, punch a hole and the punching press is tailor etc. reach and all can produce a stamping workpiece at every punching press, improve the efficiency of punching press. Meanwhile, the effect of mutual positioning between each group of male dies and female dies is realized, and the precision in stamping is improved.

2. When the male die is separated from the female die during stamping, the stamped sheet material is easily taken up, so that the situation can be effectively avoided by adding the pressing plate. The press plate and the upper die plate are provided with a slidable stroke, when the male die and the female die are punched, the press plate can be propped against the plate, the male die penetrates through a through hole in the press plate to be matched with the groove to punch the plate, and when the press plate is separated from the plate, the press plate can be separated from the plate after the male die and the female die are separated through the sliding stroke. The condition that panel took place the skew when effectively preventing the punching press has realized the effect of stable, accurate punching press.

3. After the sheet material is punched, a deformed attaching force can be generated between the sheet material and the female die, which can hinder the sheet material to be conveyed, and if the sheet material is not separated, the sheet material is easy to be partially deformed, so that the punching precision is influenced. Therefore, a discharging column is arranged on the female die, the discharging column is arranged in the placing cavity through a discharging spring, and one end of the discharging column extends out of the placing cavity and is positioned on the top surface of the female die. After the punching is finished, the plate loses the propping of the pressing plate and the male die, so that the discharging spring releases the compression force of the discharging spring, the discharging column is ejected out of the placing cavity, the plate is separated from the top surface of the female die, the aim of smoothly conveying and punching the plate is fulfilled, and the punching precision and efficiency are improved.

Drawings

FIG. 1 is a view showing a structure of a press mold for an automobile floor cross member according to an embodiment;

FIG. 2 is a schematic view of a press die of the cross member of the floor of the vehicle according to the embodiment in a press-transition state;

FIG. 3 is a longitudinal sectional view of a stamping die of the floor cross member of the automobile according to the embodiment;

FIG. 4 is a front view of an upper die plate and a male die of the stamping die for the floor cross member of the automobile according to the embodiment;

FIG. 5 is a front view of the lower mold plate and the female mold of the stamping mold of the cross beam of the automobile floor according to the embodiment;

fig. 6 is a sectional view of a punching die of the floor cross member of the automobile according to the embodiment at a punching module.

Reference numerals:

10. a template assembly; 101. Mounting a template; 102. A lower template; 103. A guide post;

1021. pressing a convex surface; 1022. A limiting block; 1023. A height limiting column;

20. pressing a plate; 201. A spring bolt;

30. a stamping module; 301. A female die; 302. A male die;

303. a drawing module; 304. A punching module; 305. A blanking module;

3011. unloading the column; 3012. A placement chamber; 3013. A discharge spring;

3031. an outer-shape male die; 3032. A shape concave die; 3041. Punching a hole column; 3042. Pressing the column;

3043. pressing the spring; 3045. A movable cavity; 3046. A through hole;

3051. a contour cutter; 3052. And (7) blanking holes.

Detailed Description

Therefore, the present invention provides a new solution, which will be described in detail below with reference to the accompanying drawings for better clarity.

Referring to fig. 1 and 2, the present embodiment provides a stamping die for a floor beam of an automobile, which includes a die plate assembly 10 and a platen 20, wherein the die plate assembly 10 has an upper die plate 101 and a lower die plate 102, and is connected by a guide pillar 103, so that the upper die plate 101 slides along the guide pillar 103 to move away from or close to the lower die plate 102, and the following description takes the example that the upper die plate 101 is located above the lower die plate 102. The die plate assembly 10 is provided with the stamping die set 30 matched with the female die 301 and the male die 302, and the stamping die set 30 at least comprises two groups of stamping male dies 302 and female dies 301, so that the plate can be stamped with different functions, such as stamping appearance, punching and stamping cutting, and the like, and the effect of stamping and forming the plate is achieved. And the punching of the multiple groups of male dies 302 and female dies 301 can be carried out simultaneously, namely, the processing of multiple processes of one die is realized, the effect of mutual positioning between the male dies 302 and the female dies 301 is also realized, and the punching precision and efficiency are improved.

In the embodiment, the pressing plate 20 is slidably disposed on the upper mold plate 101 relative to the upper mold plate 101, and the male mold 302 of the punching module 30 penetrates through the pressing plate 20 to be matched with the female mold 301 for punching. The press plate 20 and the upper die plate 101 have a slidable stroke, when the male die 302 and the female die 301 are punched, the press plate 20 can be propped against the plate, the male die 302 penetrates through a through hole in the press plate 20 to be matched with a groove to punch the plate, and when the press plate is separated from the plate, the press plate 20 can be separated from the plate after the male die 302 and the female die 301 are separated through the slidable stroke. The condition that panel took place the skew when effectively preventing the punching press has realized the effect of stable, accurate punching press.

Specifically, in the present embodiment, the pressing plate 20 includes at least two spring bolts 201, and the spring bolts 201 penetrate through the pressing plate 20 and are fixedly disposed on the upper mold plate 101. The pressing plate 20 can be locked on the upper die plate 101 by using four spring bolts 201, the pressing plate 20 can slide up and down on the spring bolts 201, and the springs on the bolts are positioned between the pressing plate 20 and the upper die plate 101, so that the pressing plate 20 can be reset by the springs after the punching is finished. The influence of the plate on the stamping is avoided, and the stamping efficiency and precision are improved.

As shown in fig. 3, 4 and 5, in the present embodiment, the stamping module 30 includes a drawing module 303, a punching module 304 and a blanking module 305, which are sequentially disposed on the die plate assembly 10, wherein when the upper die plate 101 and the lower die plate 102 are attached, the drawing module 303 draws the plate, the punching module 304 punches the drawn plate, and the blanking module 305 cuts the punched plate. The stamping die set 30 is provided with a plurality of male dies 302 and female dies 301 for stamping, a plurality of stamping processes are arranged in one stamping die, and stamping efficiency is improved. And the effect of mutual positioning can be formed among the multiple groups of dies, so that the precision in stamping is improved.

Specifically, in the present embodiment, the outer punch 3031 of the drawing module 303 is disposed on the upper die plate 101, and the outer die 3032 of the drawing module 303 is disposed on the lower die plate 102. By stamping the outer male die 3031 and the outer female die 3032, the plate can be made of aluminum alloy, the aluminum alloy has good ductility, can be subjected to good stamping, and has strong surface smoothness and good weldability. The purpose of punching the plate into the shape of the automobile floor beam at one time is achieved, and the punching precision is ensured.

As shown in fig. 6, the punching module 304 in this embodiment includes a punching column 3041 for punching a plate and a jacking column 3042 for jacking against the plate, the jacking spring 3043 is sleeved on the jacking column 3042 between the upper mold plate 101 and the pressing plate 20, and the upper mold plate 101 is provided with a movable cavity 3045 for enabling the jacking column 3042 to slide. The punching module 304 is the next process of the drawing module 303, and after the outer shape punching is completed, holes are punched in the outer shape of the automobile floor beam of the plate, so that the punching of the process supplement surface is further performed. Specifically, when the upper mold plate 101 and the lower mold plate 102 are moved to be attached and stamped, the punching column 3041 penetrates through the pressure plate 20 to be matched with a through hole 3046 for punching on the lower mold plate 102, and the through hole 3046 penetrates through the lower mold plate 102. The purpose of punching required holes on the plate of the automobile floor beam is achieved, waste materials generated by punching fall through the through holes 3046, and the influence of the waste materials on the punching efficiency or precision is effectively avoided.

After punching, when the punching column 3041 is separated from the plate, the plate is easily taken up, and a certain deformation is caused to the plate at the punching position, which affects the precision. Therefore, the top pressing column 3042 is further installed on the upper mold plate 101, and the top pressing column 3042 can be used for pressing a plate at the cross beam of the automobile floor. When the punching column 3041 is separated from the plate, the pressing column 3042 can slide in the movable cavity 3045 through the pressing spring 3043, so that the pressing column 3042 still presses against the plate, and when the upper die plate 101 and the lower die plate 102 are continuously separated, the pressing column 3042 is separated from the plate. The purpose of complete propping of the plate during punching is realized, and the punching precision and quality are improved.

As shown in fig. 5, the blanking module 305 in this embodiment includes a contour cutter 3051 disposed on the upper die plate 101 and a blanking hole 3052 penetrating through the lower die plate 102, the contour cutter 3051 cooperates with the blanking hole 3052 to cut off the floor beam, and the floor beam falls out of the stamping die along the blanking hole 3052. After punching, the plate is moved to the blanking module 305, the automobile floor beam is completely cut off through the matching of the contour cutter 3051 and the blanking hole 3052, and the plate falls out of the stamping die through the blanking hole 3052 to be collected. The punching module 304 and the drawing module 303 perform synchronous punching at the same time of cutting, so that the punching efficiency and the precision are improved.

As shown in fig. 4, in the present embodiment, the lower die plate 102 at two sides of the punching module 304 is respectively provided with a pressing convex surface 1021, the pressing convex surface 1021 of the drawing module 303 extends and abuts against the drawing module 303, and the pressing convex surface 1021 of the blanking module 305 extends and abuts against the blanking module 305. The pressing convex surface 1021 is matched with the pressing plate 20 to clamp and fix the plate surface which is not punched, so that the punching precision is improved. Specifically, during punching, the upper die plate 101 moves towards the lower die plate 102, the pressing plate 20 contacts with the pressing surface first, the plate is supported on the concave die 301 of the lower die plate 102, and then the plate is punched through the convex die 302 of the upper die plate 101, so that the purpose of high-precision punching is achieved.

Mounted on the lower template 102 in turn along the direction of conveyance: the feeding plate, the drawing module 303, the pressing convex surface 1021, the punching module 304, the pressing convex surface 1021, the blanking module 305 and the discharging plate are used for conveying plates through the feeding plate, the discharging plate is used for cutting out the plate output of the automobile floor beam, the deviation can be avoided in the feeding process by combining the groove surface, and the purpose of realizing the stability of plate conveying through the feeding plate and the discharging plate is achieved. Meanwhile, the production line type stamping effect is realized, a stamping part can be produced in each stamping, and the stamping efficiency is improved.

As shown in fig. 4, in this embodiment, the female mold 301 is fixedly disposed on the lower mold plate 102, and a stopper 1022 is disposed along the lower mold plate 102 on the peripheral side of the female mold 301. The stop 1022 is used to limit the movement of the insert of the press die. The insert is a small-sized casting block or forging block which is arranged on the body or on a larger casting and is used for fixing the stamping die without displacement, the insert is used for fixing the female die 301 on the lower template 102, and the female die 301 cannot be completely prevented from displacement only by bolts, so that the insert is required to perform secondary restraint, and the accuracy of the stamping part is prevented from being inaccurate. In a similar way, the male die 302 can also be limited by the limiting block 1022, so that the stability of the overall structure of the stamping die is improved, and the stamping precision is further improved.

In this embodiment, the upper mold plate 101 and/or the lower mold plate 102 are provided with height-limiting pillars 1023. Can protect stamping die not receive the damage through limit for height post 1023, limit for height post 1023 can ensure the distance between the bed die, when avoiding the punching press power too big, lead to stamping die to damage, security when improving the punching press.

As shown in fig. 6, in this embodiment, the female die 301 is provided with a discharging column 3011 and a placing cavity 3012 for accommodating the discharging column 3011, one end of the discharging column 3011 passes through the placing cavity 3012 and is located on the top surface of the female die 301, and a discharging spring 3013 is sleeved on the discharging column 3011 located in the placing cavity 3012. Specifically, after the sheet material is punched, a deformed attaching force is generated between the sheet material and the female die 301, which may hinder the sheet material from being conveyed, and if the sheet material is not separated, local deformation may occur easily, which may affect the punching precision. Therefore, a plurality of discharging posts 3011 are installed on the die 301, the discharging posts 3011 are installed in the placing cavity 3012 through the discharging springs 3013, and one end of the discharging posts 3011 is extended out of the placing cavity 3012 and is located on the top surface of the die 301. After the punching is finished, the plate loses the abutting between the pressing plate 20 and the male die 302, so that the discharging spring 3013 releases the compression force, the discharging column 3011 is ejected out of the placing cavity 3012, the plate is separated from the top surface of the female die 301, the purpose of smoothly conveying and punching the plate is achieved, and the punching precision and efficiency are improved.

Although the present invention has been described in detail in the foregoing embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a stamping die of floor crossbeam, its characterized in that includes:

2. The automotive floor cross member press mold according to claim 1, characterized in that: the stamping module comprises a drawing module, a punching module and a blanking module which are sequentially arranged on the template assembly;

when the upper template is attached to the lower template, the drawing module draws plates, the punching module punches holes in the drawn plates, and the blanking module cuts off the punched plates.

3. The automotive floor cross member press mold according to claim 2, characterized in that: the external male die of the drawing module is arranged on the upper template, and the external female die of the drawing module is arranged on the lower template.

4. The automotive floor cross member press mold according to claim 2, characterized in that: the punching module comprises a punching column for punching the plate and a jacking column for jacking the plate, a jacking spring is sleeved on the jacking column between the upper template and the pressing plate, and the upper template is provided with a movable cavity for the jacking column to slide.

5. The automotive floor cross member press mold according to claim 2, characterized in that: the blanking module comprises a contour cutter arranged on the upper template and a blanking hole penetrating through the lower template, the contour cutter is matched with the blanking hole to cut a floor beam, and the floor beam drops out of the stamping die along the blanking hole.

6. The automotive floor cross member press mold according to claim 2, characterized in that: the punching die comprises a punching module, a drawing module and a blanking module, wherein the punching module is arranged on a lower die plate, the lower die plate is arranged on two sides of the punching module, the pressing convex surface facing the drawing module extends and abuts against the drawing module, and the pressing convex surface facing the blanking module extends and abuts against the blanking module.

7. The automotive floor cross member press mold according to claim 1, characterized in that: the female die is fixedly arranged on the lower template, and a limiting block is arranged on the lower template along the periphery of the female die.

8. The automotive floor cross member press mold according to claim 1, characterized in that: the pressing plate comprises at least two spring bolts, and the spring bolts penetrate through the pressing plate and are fixedly arranged on the upper template.

9. The automotive floor cross member press mold according to claim 1, characterized in that: the upper template and/or the lower template are/is provided with height limiting columns.

10. The automotive floor cross member press mold according to claim 1, characterized in that: the female die is provided with a discharging column and a placing cavity for containing the discharging column, one end of the discharging column penetrates through the placing cavity and is located on the top surface of the female die, and a discharging spring is sleeved on the discharging column located in the placing cavity.