CN117282874A - Stamping forming die and stamping processing method - Google Patents

Abstract

The application relates to a stamping forming die and a stamping processing method, wherein a first discharging piece and a second discharging piece are arranged at intervals along the y-axis direction and form a processing groove for placing a plate to be processed; the second preforming assembly, the second shaping assembly and the second unloading piece can be movably matched with the limiting assembly along the x-axis direction; the first preformed component or the second preformed component can be movably inserted into the processing groove along the y-axis direction, the first shaping component can be pressed and connected with at least part of the preformed section along the y-axis direction and enable at least part of the preformed section to be clamped between the first shaping component and the second unloading piece, or the second shaping component can be pressed and connected with at least part of the preformed section along the y-axis direction and enable at least part of the preformed section to be clamped between the second shaping component and the first unloading piece. The stamping forming die and the stamping processing method solve the problem that the stamped part of the radiating fin is easy to distort and even roll in the processing process.

Description

Stamping forming die and stamping processing method

Technical Field

The present disclosure relates to the field of manufacturing technology of heat sinks, and in particular, to a press forming die and a press processing method.

Background

In the field of heat exchangers, a radiating fin is one of core parts, the radiating fin specifically comprises a straight radiating fin, a staggered radiating fin, a wave radiating fin and the like, a cam type radiating fin forming machine is common equipment for stamping processing of various radiating fins, the cam type radiating fin forming machine is adopted for processing the radiating fin, the cam type radiating fin forming machine has the characteristics of high production efficiency and low processing cost, a forming die matched with the cam type radiating fin forming machine generally adopts a fixed male die structure, but the existing fixed male die structure has poor protection effect on a stamped part of the radiating fin, the stamped part of the radiating fin is easy to generate distortion and even rolling phenomena, and the phenomenon is more serious in the radiating fin with dense tooth pitch and thicker material.

Disclosure of Invention

Accordingly, it is necessary to provide a press forming die and a press forming method for solving the problem that the portion of the heat sink which is press formed is liable to be distorted or even rolled during the process of the heat sink.

The stamping forming die comprises a first preformed component, a first shaping component, a first unloading piece, a limiting component, a second preformed component, a second shaping component and a second unloading piece; the first unloading piece and the second unloading piece are limited at two ends of the limiting assembly along the y-axis direction; the first discharging piece and the second discharging piece are arranged at intervals along the y-axis direction and form a processing groove, and the processing groove is used for placing a plate to be processed; the second preforming assembly, the second shaping assembly and the second unloading piece can be movably matched with the limiting assembly along the x-axis direction; the first preformed component or the second preformed component can be movably inserted into the processing groove along the y-axis direction, the sheet to be processed is bent to form a preformed section, the first shaping component can be pressed and connected with at least part of the preformed section along the y-axis direction and enable the at least part of the preformed section to be clamped between the first shaping component and the second unloading piece, or the second shaping component can be pressed and connected with at least part of the preformed section along the y-axis direction and enable the at least part of the preformed section to be clamped between the second shaping component and the first unloading piece; wherein the x-axis and the y-axis are perpendicular to each other.

In one embodiment, the first preform assembly and the first shaping assembly are disposed on a side of the first discharge member facing away from the second discharge member, respectively, and the second preform assembly and the second shaping assembly are disposed on a side of the second discharge member facing away from the first discharge member, respectively.

In one embodiment, the first preforming assembly comprises a first preforming male die and a first preforming fixing piece, the first shaping assembly comprises a first shaping male die and a first shaping fixing piece, the first shaping fixing piece is movably arranged on one side of the first discharging piece, which is away from the second discharging piece, one end of the first shaping male die is fixedly connected with the first shaping fixing piece, and the other end of the first shaping male die is movably arranged on the first discharging piece in a penetrating manner along the y-axis direction and can be inserted into the processing groove so as to be used for punching and bending a plate to be processed; the first preformed fixing piece is movably arranged on one side, deviating from the first unloading piece, of the first shaping fixing piece, one end of the first preformed male die is fixedly connected to the first preformed fixing piece, and the other end of the first preformed male die sequentially movably penetrates through the first shaping fixing piece and the first unloading piece along the y-axis direction and can be inserted into the processing groove to be used for crimping a preformed section.

In one embodiment, the number of the first shaping punches is plural, and the plural first shaping punches are arranged in parallel along the x-axis direction.

In one embodiment, there is one and only one number of first preform punches.

In one embodiment, the press forming die further includes a first compression elastic member and a second compression elastic member, one end of the first compression elastic member is connected to the first pre-forming fixing member, the other end is connected to the first shaping fixing member, one end of the second compression elastic member is connected to the first shaping fixing member, and the other end is connected to the first discharging member.

In one embodiment, the second preforming assembly comprises a second preforming male die and a second preforming fixing piece, the second shaping assembly comprises a second shaping male die and a second shaping fixing piece, the second shaping fixing piece is movably arranged on one side of the second discharging piece, which is away from the first discharging piece, one end of the second shaping male die is fixedly connected with the second shaping fixing piece, and the other end of the second shaping male die is movably arranged on the second discharging piece in a penetrating manner along the y-axis direction and can be inserted into the processing groove so as to be used for punching and bending a plate to be processed; the second preformed fixing piece is movably arranged on one side, deviating from the second unloading piece, of the second shaping fixing piece, one end of the second preformed male die is fixedly connected to the second preformed fixing piece, and the other end of the second preformed male die sequentially movably penetrates through the second shaping fixing piece and the second unloading piece along the y-axis direction and can be inserted into the processing groove to be used for crimping the preformed section.

In one embodiment, the number of the second shaping punches is plural, and the plural second shaping punches are arranged in parallel along the x-axis direction.

In one embodiment, there is one and only one number of second preformed punches.

In one embodiment, the press forming die further includes a third compression elastic member and a fourth compression elastic member, one end of the third compression elastic member is connected to the second preformed fixing member, the other end is connected to the second shaping fixing member, one end of the fourth compression elastic member is connected to the second shaping fixing member, and the other end is connected to the second discharging member.

The application also provides a stamping method for processing a plate to be processed by using the stamping forming die according to any one of the embodiments, comprising the following steps:

alternately stamping the sheet to be processed with the first preform assembly and the second preform assembly to form a partial preform segment;

adjusting the stamping forming die to enable the first preformed assembly, the second preformed assembly, the first shaping assembly and the second shaping assembly to be staggered along the x-axis direction;

the second preforming assembly and the second shaping assembly are movably inserted into the processing groove along the y-axis direction respectively, and the second shaping assembly is in pressure connection with the second side of the preforming section along the y-axis direction and enables the corresponding preforming section to be clamped between the second shaping assembly and the first unloading piece;

The first shaping assembly is movably inserted into the processing groove along the y-axis direction, is in pressure connection with the first side of the preformed section along the y-axis direction and applies extrusion force to the preformed section so as to reduce the groove width of the preformed section along the x-axis direction;

the first preformed component is movably inserted into the processing groove along the y-axis direction, and bends the plate to be processed and continuously forms a preformed section;

leaving the second pre-forming assembly and the second shaping assembly from the processing tank, and moving the second pre-forming assembly, the second shaping assembly and the second discharge member a predetermined distance along the x-axis direction toward the feed end, such that the second pre-forming assembly, the first pre-forming assembly, the second shaping assembly and the first shaping assembly are staggered along the x-axis direction;

the second shaping assembly is movably inserted into the processing groove along the y-axis direction, is in pressure connection with the second side of the preformed section along the y-axis direction and applies extrusion force to the preformed section so as to reduce the groove width of the preformed section along the x-axis direction;

the second preformed component is movably inserted into the processing groove along the y-axis direction, and bends the plate to be processed and continuously forms a preformed section;

the first preformed assembly and the first shaping assembly leave the processing groove, and the second preformed assembly, the second shaping assembly and the second discharging piece move a preset distance towards the discharging end along the x-axis direction, so that the first preformed assembly, the second preformed assembly, the first shaping assembly and the second shaping assembly are staggered along the x-axis direction;

And repeating the process, and continuously processing the plate to be processed.

Compared with the prior art, the stamping forming die and the stamping processing method provided by the application have the advantages that as the second shaping component and the first shaping component are respectively in compression joint with the two sides of the preformed section, when the first shaping component applies extrusion force to the preformed section, the preformed section can also receive the reaction force of the second shaping component, and under the extrusion action of the first shaping component and the second shaping component, the round corners of the bending part of the preformed section can deform towards opposite directions, so that the groove width of the preformed section along the x-axis direction can be reduced, and the structure of the preformed section is more compact.

Similarly, because the second shaping component and the first shaping component are respectively pressed on two sides of the preformed segment, when the second shaping component applies extrusion force to the preformed segment, the preformed segment can also receive the reaction force of the first shaping component, and under the extrusion action of the first shaping component and the second shaping component, the round angle at the bending part of the preformed segment can deform towards opposite directions, so that the groove width of the preformed segment along the x-axis direction can be reduced, and the structure of the preformed segment is more compact.

Because the preformed section that has formed is firmly held by first plastic subassembly and second plastic subassembly and fixes in the processing groove, therefore, when first preformed subassembly is buckled and is waited to process the slab, wait to process the slab and can't take place the rolling deformation of wholeness to the machining precision of new preformed section has been improved greatly. And, because the preformed segment that has been formed is alternately limited by the first shaping assembly and the second shaping assembly, the first preformed assembly will not feed toward the bottom of the first preformed assembly during the stamping of the sheet to be processed, where the end of the sheet to be processed that is adjacent to the preformed segment that has been formed (defined as the discharge end) and only the end of the sheet to be processed that is remote from the preformed segment that has been formed (defined as the feed end) will feed toward the bottom of the first preformed assembly to form a new preformed segment. Obviously, the first preform assembly is closer to the feed end of the sheet to be processed than the first shaping assembly, and the second preform assembly is also closer to the feed end of the sheet to be processed than the second shaping assembly. In this way, the sheet to be processed can be fed from the feeding end all the time without affecting the discharging end, thereby ensuring that the preformed section which is formed cannot be distorted.

Likewise, because the preformed segment which is formed is firmly clamped and fixed in the processing groove by the first shaping component and the second shaping component, when the second preformed component bends the sheet to be processed, the sheet to be processed cannot roll and deform integrally, and therefore the processing precision of the new preformed segment is greatly improved. And, because the preformed segment that has been shaped is alternately limited by the first shaping assembly and the second shaping assembly, therefore, the second preformed assembly is in the process of stamping the sheet to be processed, the discharge end of the sheet to be processed is not fed towards the bottom of the second preformed assembly, and at this time, only the feed end of the sheet to be processed is fed towards the bottom of the second preformed assembly to form a new preformed segment. In this way, the sheet to be processed can be fed from the feeding end all the time without affecting the discharging end, thereby ensuring that the preformed section which is formed cannot be distorted.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a front view of a stamping die according to an embodiment of the present application;

FIG. 2 is a top view of a stamping die according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged detail view of a stamping die and a sheet to be processed according to an embodiment provided herein;

fig. 5-15 are flowcharts illustrating a press forming die according to an embodiment of the present application.

Reference numerals: 100. a first preform assembly; 110. a first preformed male die; 120. a first preformed mount; 200. a first shaping assembly; 210. a first shaping punch; 220. a first plastic fixing piece; 310. a first discharge member; 320. a second discharge member; 400. a limit component; 410. a limiting plate; 500. a second preform assembly; 510. a second preformed male die; 520. a second preformed mount; 600. a second shaping assembly; 610. a second shaping punch; 620. a second plastic fixing piece; 710. a processing groove; 720. a sheet to be processed; 730. a preform section; 810. a first compression spring; 820. a second compression elastic member; 830. a third compression spring; 840. a fourth compression spring; 850. a fastener; 860. a guide member; 910. a first work table; 920. and a second workbench.

Detailed Description

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the field of heat exchangers, a radiating fin is one of core parts, the radiating fin specifically comprises a straight radiating fin, a staggered radiating fin, a wave radiating fin and the like, a cam type radiating fin forming machine is common equipment for stamping processing of various radiating fins, the cam type radiating fin forming machine is adopted for processing the radiating fin, the cam type radiating fin forming machine has the characteristics of high production efficiency and low processing cost, a forming die matched with the cam type radiating fin forming machine generally adopts a fixed male die structure, but the existing fixed male die structure has poor protection effect on a stamped part of the radiating fin, the stamped part of the radiating fin is easy to generate distortion and even rolling phenomena, and the phenomenon is more serious in the radiating fin with dense tooth pitch and thicker material.

Referring to fig. 1-15, in order to solve the problem that the punched part of the heat sink is liable to be distorted or even rolled during the processing process, the present application provides a punch forming mold and a punch processing method, wherein the punch forming mold includes a first pre-forming assembly 100, a first shaping assembly 200, a first unloading member 310, a limiting assembly 400, a second pre-forming assembly 500, a second shaping assembly 600 and a second unloading member 320. For convenience of description, a two-dimensional coordinate system including an x-axis and a y-axis perpendicular to each other is established.

As shown in fig. 3, the first and second discharging pieces 310 and 320 are limited at both ends of the limiting assembly 400 in the y-axis direction. It should be noted that, the first discharging member 310 and the second discharging member 320 are limited to two ends of the limiting assembly 400 along the y-axis direction, and the first discharging member 310 and the second discharging member 320 are relatively fixed to the limiting assembly 400 along the y-axis direction, but not represented, the first discharging member 310 and the second discharging member 320 are relatively fixed to the limiting assembly 400 along the x-axis direction or other directions.

As shown in fig. 3, the first and second discharging members 310 and 320 are spaced apart along the y-axis direction and form a processing groove 710, and the processing groove 710 is used for placing a plate 720 (including but not limited to a heat sink, a fin, a chip, etc.). It should be noted that, the first unloading member 310 and the second unloading member 320 are generally disposed in a plate shape and disposed horizontally, so that the processing tank 710 is also configured to extend horizontally, and the plate 720 to be processed is also disposed horizontally in the processing tank 710. And, the first preform assembly 100, the first shaping assembly 200, the second preform assembly 500, and the second shaping assembly 600 are each press-fitted with the sheet 720 to be processed in a direction perpendicular to the horizontal plane.

As shown in fig. 3, the second preform assembly 500, the second shaping assembly 600, and the second stripper 320 can be movably coupled with the spacing assembly 400 along the x-axis direction. It should be noted that, the second pre-forming assembly 500, the second shaping assembly 600 and the second discharging member 320 may be integrally moved along the x-axis direction, or may be respectively moved along the x-axis direction, so long as stable cooperation of the three is ensured.

As shown in fig. 3 and 4, the first preform assembly 100 or the second preform assembly 500 can be movably inserted into the processing groove 710 along the y-axis direction and the sheet 720 to be processed is bent to form the preform segment 730, the first shaping assembly 200 can be crimped to at least a portion of the preform segment 730 along the y-axis direction with at least a portion of the preform segment 730 sandwiched between the first shaping assembly 200 and the second discharge member 320, or the second shaping assembly 600 can be crimped to at least a portion of the preform segment 730 along the y-axis direction with at least a portion of the preform segment 730 sandwiched between the second shaping assembly 600 and the first discharge member 310.

It should be noted that the sheet 720 to be processed is generally in a continuous S-shaped curved shape, and thus, the preformed section 730 generally requires the first preset forming assembly and the second preset forming assembly to alternately operate so that the sheet 720 to be processed is processed and formed.

It should be noted that the first preform assembly 100, the first shaping assembly 200, the second preform assembly 500, the second shaping assembly 600, and the second stripper 320 may be driven by a pneumatic or electric motor or a hydraulic cylinder.

Referring to fig. 5 to 15, the stamping method using the stamping die includes the following steps:

step one, alternately stamping the sheet 720 to be processed with the first preform assembly 100 and the second preform assembly 500 to form a partial preform segment 730;

step two, adjusting the stamping forming die to enable the first preformed assembly 100, the second preformed assembly 500, the first shaping assembly 200 and the second shaping assembly 600 to be staggered along the x-axis direction;

step three, the second pre-forming assembly 500 and the second shaping assembly 600 are movably inserted into the processing groove 710 along the y-axis direction, and the second shaping assembly 600 is crimped to the second side of the pre-forming section 730 along the y-axis direction and the corresponding pre-forming section 730 is clamped between the second shaping assembly 600 and the first discharging member 310;

step four, the first shaping component 200 is movably inserted into the processing groove 710 along the y-axis direction, and the first shaping component 200 is crimped on the first side of the preformed section 730 along the y-axis direction and applies a extrusion force to the preformed section 730, so that the groove width of the preformed section 730 along the x-axis direction is reduced, and the shaping purpose of the preformed section 730 is achieved; wherein the first side and the second side are two sides of the plate 720 to be processed along the y-axis direction;

It should be noted that, since the second shaping assembly 600 and the first shaping assembly 200 are respectively pressed against two sides of the preformed segment 730, when the first shaping assembly 200 applies the pressing force to the preformed segment 730, the preformed segment 730 will also receive the reaction force of the second shaping assembly 600, and under the extrusion action of the first shaping assembly 200 and the second shaping assembly 600, the rounded corner at the bending position of the preformed segment 730 will deform towards the opposite direction, specifically, r2 is reduced and less than r1, t2 is reduced and less than t1, so the groove width of the preformed segment 730 along the x-axis direction will be reduced accordingly, so that the structure of the preformed segment 730 is more compact.

Step five, the first preformed component 100 is movably inserted into the processing groove 710 along the y-axis direction, and the plate 720 to be processed is bent and the preformed section 730 is continuously formed;

since the preformed segment 730 which has been formed is firmly clamped and fixed in the processing groove 710 by the first shaping assembly 200 and the second shaping assembly 600, when the first shaping assembly 100 bends the sheet 720 to be processed, the sheet 720 to be processed cannot be integrally deformed by rolling, thereby greatly improving the processing precision of the new preformed segment 730. Also, since the already formed preform segments 730 are staggered by the first and second shaping assemblies 200 and 600, the first preform assembly 100 does not feed toward the bottom of the first preform assembly 100 during the stamping of the to-be-processed sheet 720 at the end of the to-be-processed sheet 720 (defined as the discharge end) near the already formed preform segments 730, and only at this time, the end of the to-be-processed sheet 720 (defined as the feed end) far from the already formed preform segments 730 is fed toward the bottom of the first preform assembly 100 to form a new preform segment 730. It is evident that the first preform assembly 100 is closer to the feed end of the slab 720 to be processed than the first shaping assembly 200, and the second preform assembly 500 is also closer to the feed end of the slab 720 to be processed than the second shaping assembly 600. In this way, it is effectively ensured that the sheet 720 to be processed can always be fed from the feed end without the discharge end being affected, thereby ensuring that the preformed section 730 that has been formed is not distorted.

Step six, the second pre-forming assembly 500 and the second shaping assembly 600 are separated from the processing groove 710, and the second pre-forming assembly 500, the second shaping assembly 600 and the second discharging member 320 are moved toward the feeding end along the x-axis direction by a preset distance, so that the second pre-forming assembly 500, the first pre-forming assembly 100, the second shaping assembly 600 and the first shaping assembly 200 are staggered along the x-axis direction;

step seven, the second shaping assembly 600 is movably inserted into the processing groove 710 along the y-axis direction, and the second shaping assembly 600 is crimped on the second side of the preformed section 730 along the y-axis direction and applies a extrusion force to the preformed section 730, so that the groove width of the preformed section 730 along the x-axis direction is reduced, and the shaping purpose of the preformed section 730 is achieved;

similarly, since the second shaping assembly 600 and the first shaping assembly 200 are respectively pressed against two sides of the preformed section 730, when the second shaping assembly 600 applies a pressing force to the preformed section 730, the preformed section 730 is also subjected to a reaction force of the first shaping assembly 200, and under the pressing action of the first shaping assembly 200 and the second shaping assembly 600, the rounded corners at the bending positions of the preformed section 730 are deformed in opposite directions, so that the groove width of the preformed section 730 along the x-axis direction is reduced, and the structure of the preformed section 730 is more compact.

Step eight, the second preformed component 500 is movably inserted into the processing groove 710 along the y-axis direction, and the plate 720 to be processed is bent and the preformed section 730 is continuously formed;

also, since the preformed segment 730 which has been formed is firmly held and fixed in the processing groove 710 by the first and second shaping members 200 and 600, when the second preform member 500 bends the plate 720 to be processed, the plate 720 to be processed cannot be integrally roll-deformed, thereby greatly improving the processing accuracy of the new preformed segment 730. Also, since the preformed segments 730 that have been formed are staggered by the first and second shaping assemblies 200 and 600, the second preform assembly 500 does not feed toward the bottom of the second preform assembly 500 during the stamping of the sheet 720 to be processed, and only the feed end of the sheet 720 to be processed is fed toward the bottom of the second preform assembly 500 to form a new preformed segment 730. In this way, it is effectively ensured that the sheet 720 to be processed can always be fed from the feed end without the discharge end being affected, thereby ensuring that the preformed section 730 that has been formed is not distorted.

Step nine, the first pre-forming assembly 100 and the first shaping assembly 200 are separated from the processing groove 710, and the second pre-forming assembly 500, the second shaping assembly 600 and the second discharging member 320 are moved toward the discharging end along the x-axis direction by a preset distance, so that the first pre-forming assembly 100, the second pre-forming assembly 500, the first shaping assembly 200 and the second shaping assembly 600 are staggered along the x-axis direction;

and step ten, repeating the above processes (steps three to nine), and continuing to process the plate 720 to be processed.

It should be noted that, since the preformed segment 730 machined in the first step does not have the pressing (fixing and clamping) process of the first shaping assembly 200 and the second shaping assembly 600, when the whole sheet 720 to be machined is machined, the preformed segment 730 machined in the first step needs to be cut off to ensure the machining precision of the whole sheet 720 to be machined.

In order to improve the integration of the stamping forming mold, in an embodiment, as shown in fig. 3, the first pre-forming assembly 100 and the first shaping assembly 200 are respectively disposed on a side of the first discharging member 310 facing away from the second discharging member 320, and the second pre-forming assembly 500 and the second shaping assembly 600 are respectively disposed on a side of the second discharging member 320 facing away from the first discharging member 310.

Specifically, in one embodiment, as shown in fig. 3, the first preform assembly 100 includes a first preform punch 110 and a first preform fixture 120, and the first shaping assembly 200 includes a first shaping punch 210 and a first shaping fixture 220. The first shaping fixing member 220 is movably disposed on one side of the first discharging member 310 away from the second discharging member 320, and one end of the first shaping punch 210 is fixedly connected to the first shaping fixing member 220, while the other end is movably disposed along the y-axis direction through the first discharging member 310 and can be inserted into the processing groove 710, so as to be used for punching and bending the sheet 720 to be processed. The first pre-forming fixing member 120 is movably disposed on a side of the first shaping fixing member 220 away from the first discharging member 310, and one end of the first pre-forming male die 110 is fixedly connected to the first pre-forming fixing member 120, while the other end is sequentially movably disposed on the first shaping fixing member 220 and the first discharging member 310 along the y-axis direction in a penetrating manner and can be inserted into the processing groove 710, so as to be used for crimping the pre-forming section 730.

So configured, the first preform punch 110 can be driven to move by the first preform fixture 120, and the first shaping punch 210 can be driven to move by the first shaping fixture 220. In addition, the first stripper 310 can perform a limiting and guiding function on the movement of the first shaping punch 210, so that the crimping and shaping precision of the first shaping assembly 200 is improved. Likewise, the first stripper 310 and the first plastic fixing 220 can provide a limited guiding function for the movement of the first preform punch 110, thereby improving the stamping accuracy of the first preform assembly 100.

Further, in an embodiment, as shown in fig. 3, the number of the first shaping punches 210 is plural, and the plural first shaping punches 210 are arranged in parallel along the x-axis direction, specifically, the number of the first shaping punches 210 may be 2, 3 or more than 3, which is not listed herein.

In this way, the crimp shaping efficiency of the preform segment 730 can be greatly improved.

It should be noted that in order to ensure that the sheet 720 to be processed is fed only from the feed end, in one embodiment, there is one and only one first preform punch 110 as shown in fig. 3.

Similarly, in one embodiment, as shown in fig. 3, the second preform assembly 500 includes a second preform punch 510 and a second preform anchor 520, and the second shaping assembly 600 includes a second shaping punch 610 and a second shaping anchor 620. The second shaping fixing member 620 is movably disposed on a side of the second discharging member 320 away from the first discharging member 310, and one end of the second shaping punch 610 is fixedly connected to the second shaping fixing member 620, while the other end is movably disposed along the y-axis direction through the second discharging member 320 and can be inserted into the processing slot 710, so as to be used for punching and bending the sheet 720 to be processed. The second pre-forming fixing member 520 is movably disposed at a side of the second shaping fixing member 620 away from the second discharging member 320, and one end of the second pre-forming male mold 510 is fixedly connected to the second pre-forming fixing member 520, while the other end is sequentially movably disposed through the second shaping fixing member 620 and the second discharging member 320 along the y-axis direction and can be inserted into the processing slot 710, so as to be used for crimping the pre-forming section 730.

So configured, the second preform punch 510 is driven to move by the second preform fixture 520, and the second shaping punch 610 is driven to move by the second shaping fixture 620. And, the second stripper 320 can perform a limiting guide function on the movement of the second shaping punch 610, thereby improving the crimping and shaping precision of the second shaping assembly 600. Likewise, the second stripper 320 and the second sizing fixture 620 can provide a positive guide for the movement of the second preform punch 510, thereby improving the stamping accuracy of the second preform assembly 500.

Further, in an embodiment, as shown in fig. 3, the number of the second shaping punches 610 is plural, and the plural second shaping punches 610 are arranged in parallel along the x-axis direction, specifically, the number of the second shaping punches 610 may be 2, 3 or more than 3, which is not listed here.

In this way, the crimp shaping efficiency of the preform segment 730 can be greatly improved.

It should be noted that in order to ensure that the sheet 720 to be processed is fed only from the feed end, in one embodiment, there is a single and only one second preform punch 510, as shown in fig. 3.

In an embodiment, the limiting assembly 400 includes a plurality of limiting plates 410 disposed at intervals, and the plurality of limiting plates 410 are respectively and fixedly connected to the periphery of the first discharging member 310 or to opposite ends of the first discharging member 310.

It should be noted that the height of the limiting assembly 400 is adjustable, and in particular, the stamping forming mold further includes a height adjusting member connected to one end of the limiting assembly 400 for adjusting the height of the limiting assembly 400.

In an embodiment, as shown in fig. 3, the press forming mold further includes a first compression elastic member 810 and a second compression elastic member 820, wherein one end of the first compression elastic member 810 is connected to the first pre-forming fixing member 120, the other end is connected to the first shaping fixing member 220, one end of the second compression elastic member 820 is connected to the first shaping fixing member 220, and the other end is connected to the first discharging member 310.

In this way, under the elastic force of the first compression elastic member 810 and the second compression elastic member 820, the first preformed fixing member 120 and the first shaping fixing member 220 can be quickly restored when they are not acted by external pushing force.

Further, in an embodiment, the elastic coefficient of the first compression elastic member 810 is greater than the elastic coefficient of the second compression elastic member 820.

Since the first shaping fixture 220 is disposed between the first preformed fixture 120 and the first discharge member 310, the first compression spring 810 has a greater spring constant, which facilitates the first preformed fixture 120 pushing the first shaping fixture 220 against the force of the second compression spring 820 through the first compression spring 810 and toward the first discharge member 310.

Still further, in one embodiment, the second compression spring 820 has a coefficient of elasticity greater than the coefficient of friction between the first shaping punch 210 and the preform segment 730, which facilitates the second compression spring 820 pushing the first shaping fixture 220 against the friction between the first shaping punch 210 and the preform segment 730 and toward the first stripper 310.

Still further, in one embodiment, the coefficient of elasticity of the first compression spring 810 is greater than the coefficient of friction between the first shaping punch 210 and the preform segment 730 plus the coefficient of friction between the first preform punch 110 and the preform segment 730, which facilitates the first compression spring 810 to synchronously push the first shaping fixture 220 and the first preform fixture 120 towards the first discharge member 310.

In one embodiment, as shown in fig. 3, the press forming mold further includes a third compression elastic member 830 and a fourth compression elastic member 840, wherein one end of the third compression elastic member 830 is connected to the second pre-forming fixing member 520, the other end is connected to the second shaping fixing member 620, one end of the fourth compression elastic member 840 is connected to the second shaping fixing member 620, and the other end is connected to the second discharging member 320.

In this way, the second preformed fixing member 520 and the second shaping fixing member 620 can be quickly restored without external pushing force by the elastic force of the third compression elastic member 830 and the fourth compression elastic member 840.

Further, in an embodiment, the elastic coefficient of the third compression elastic member 830 is greater than the elastic coefficient of the fourth compression elastic member 840.

Since the second shaping fixture 620 is disposed between the second preformed fixture 520 and the second discharge member 320, the third compression elastic member 830 has a larger elastic coefficient, which is advantageous for the second preformed fixture 520 to push the second shaping fixture 620 against the force of the fourth compression elastic member 840 and move toward the second discharge member 320 through the third compression elastic member 830.

Still further, in one embodiment, the fourth compression spring 840 has a coefficient of elasticity greater than the coefficient of friction between the second shaping punch 610 and the preform section 730, which facilitates the fourth compression spring 840 pushing the second shaping fixture 620 against the friction between the second shaping punch 610 and the preform section 730 and toward the second stripper 320.

Further, in an embodiment, the elastic coefficient of the third compression elastic member 830 is greater than the friction coefficient between the second shaping punch 610 and the pre-forming section 730 plus the friction coefficient between the second pre-forming punch 510 and the pre-forming section 730, so that the third compression elastic member 830 is beneficial to synchronously push the second shaping fixture 620 and the second pre-forming fixture 520 to synchronously move toward the second discharging member 320.

In one embodiment, as shown in fig. 2, the press forming die further includes a fastener 850 and a guide 860, the fastener 850 being used to connect adjacent parts, and the guide 860 being capable of sequentially penetrating a plurality of parts to move each part along the extending direction of the guide 860.

In one embodiment, as shown in fig. 3, the press forming die further includes a first table 910 and a second table 920, where the first table 910 is connected to an end of the first preform fixture 120 facing away from the first shaping fixture 220. The second table 920 is attached to an end of the second preformed mount 520 that faces away from the second shaping mount 620.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims (11)

1. The stamping forming die is characterized by comprising a first pre-forming assembly (100), a first shaping assembly (200), a first unloading piece (310), a limiting assembly (400), a second pre-forming assembly (500), a second shaping assembly (600) and a second unloading piece (320);

the first discharging part (310) and the second discharging part (320) are limited at two ends of the limiting assembly (400) along the y-axis direction;

the first discharging piece (310) and the second discharging piece (320) are arranged at intervals along the y-axis direction and form a processing groove (710), and the processing groove (710) is used for placing a plate (720) to be processed;

the second preforming assembly (500), the second shaping assembly (600) and the second unloading member (320) can be movably matched with the limit assembly (400) along the x-axis direction;

the first preformed component (100) or the second preformed component (500) can be movably inserted into the processing groove (710) along the y-axis direction, and the sheet (720) to be processed is bent to form a preformed section (730), the first shaping component (200) can be pressed and connected with at least part of the preformed section (730) along the y-axis direction, and at least part of the preformed section (730) can be clamped between the first shaping component (200) and the second unloading piece (320), or the second shaping component (600) can be pressed and connected with at least part of the preformed section (730) along the y-axis direction, and at least part of the preformed section (730) can be clamped between the second shaping component (600) and the first unloading piece (310);

Wherein the x-axis and the y-axis are perpendicular to each other.

2. The stamping forming die of claim 1, wherein the first preform assembly (100) and the first shaping assembly (200) are respectively disposed on a side of the first discharge member (310) facing away from the second discharge member (320), and the second preform assembly (500) and the second shaping assembly (600) are respectively disposed on a side of the second discharge member (320) facing away from the first discharge member (310).

3. The stamping forming die according to claim 1, wherein the first pre-forming assembly (100) comprises a first pre-forming punch (110) and a first pre-forming fixing member (120), the first shaping assembly (200) comprises a first shaping punch (210) and a first shaping fixing member (220), the first shaping fixing member (220) is movably arranged at one side of the first discharging member (310) away from the second discharging member (320), one end of the first shaping punch (210) is fixedly connected to the first shaping fixing member (220), and the other end of the first shaping punch is movably arranged on the first discharging member (310) along the y-axis direction in a penetrating manner and can be inserted into the processing groove (710) for stamping and bending the sheet (720) to be processed;

the first preformed fixing piece (120) is movably arranged on one side, deviating from the first unloading piece (310), of the first shaping fixing piece (220), one end of the first preformed male die (110) is fixedly connected with the first preformed fixing piece (120), and the other end of the first preformed male die sequentially movably penetrates through the first shaping fixing piece (220) and the first unloading piece (310) along the y-axis direction and can be inserted into the processing groove (710) so as to be used for crimping the preformed section (730).

4. A press forming die according to claim 3, wherein the number of the first shaping punches (210) is plural, and the plural first shaping punches (210) are juxtaposed in the x-axis direction.

5. A stamping forming die according to claim 3, characterized in that the number of first pre-forming punches (110) is one and only one.

6. The press forming die of claim 3, further comprising a first compression spring (810) and a second compression spring (820), wherein one end of the first compression spring (810) is connected to the first preform fixture (120), the other end is connected to the first shaping fixture (220), and one end of the second compression spring (820) is connected to the first shaping fixture (220), and the other end is connected to the first discharge member (310).

7. The stamping forming die according to claim 1, wherein the second pre-forming assembly (500) comprises a second pre-forming punch (510) and a second pre-forming fixing member (520), the second shaping assembly (600) comprises a second shaping punch (610) and a second shaping fixing member (620), the second shaping fixing member (620) is movably arranged at one side of the second discharging member (320) away from the first discharging member (310), one end of the second shaping punch (610) is fixedly connected to the second shaping fixing member (620), and the other end of the second shaping punch is movably arranged on the second discharging member (320) along the y-axis direction in a penetrating manner and can be inserted into the processing groove (710) for stamping and bending the sheet (720) to be processed;

The second preformed fixing piece (520) is movably arranged on one side, deviating from the second unloading piece (320), of the second shaping fixing piece (620), one end of the second preformed male die (510) is fixedly connected with the second preformed fixing piece (520), and the other end of the second preformed male die sequentially movably penetrates through the second shaping fixing piece (620) and the second unloading piece (320) along the y-axis direction and can be inserted into the processing groove (710) so as to be used for crimping the preformed section (730).

8. The press forming die according to claim 7, wherein the number of the second shaping punches (610) is plural, and the plural second shaping punches (610) are juxtaposed along the x-axis direction.

9. The stamping forming die of claim 7, wherein there is one and only one number of second pre-forming punches (510).

10. The press forming die of claim 7, further comprising a third compression spring (830) and a fourth compression spring (840), wherein one end of the third compression spring (830) is connected to the second preform fixture (520), the other end is connected to the second shaping fixture (620), and one end of the fourth compression spring (840) is connected to the second shaping fixture (620), and the other end is connected to the second discharge member (320).

11. A press working method, characterized in that a sheet (720) to be worked is worked using a press forming die comprising any one of claims 1 to 10, the press working method comprising the steps of:

-alternately stamping the sheet (720) to be machined with the first preform assembly (100) and the second preform assembly (500) to form a partial preform segment (730);

adjusting the press forming die to enable the first preformed assembly (100), the second preformed assembly (500), the first shaping assembly (200) and the second shaping assembly (600) to be staggered along the x-axis direction;

the second pre-forming assembly (500) and the second shaping assembly (600) are movably inserted into the processing groove (710) along the y-axis direction respectively, and the second shaping assembly (600) is in pressure connection with the second side of the pre-forming section (730) along the y-axis direction and enables the corresponding pre-forming section (730) to be clamped between the second shaping assembly (600) and the first unloading piece (310);

the first shaping assembly (200) is movably inserted into the processing groove (710) along the y-axis direction, and the first shaping assembly (200) is in pressure connection with the first side of the preformed section (730) along the y-axis direction and applies extrusion force to the preformed section (730) so as to reduce the groove width of the preformed section (730) along the x-axis direction;

The first preformed component (100) is movably inserted into the processing groove (710) along the y-axis direction, and bends the plate (720) to be processed and continuously forms a preformed section (730);

leaving the second preform assembly (500) and the second shaping assembly (600) from the processing tank (710) and moving the second preform assembly (500), the second shaping assembly (600) and the second discharge member (320) a predetermined distance along the x-axis direction toward the feed end such that the second preform assembly (500), the first preform assembly (100), the second shaping assembly (600) and the first shaping assembly (200) are staggered along the x-axis direction;

the second shaping assembly (600) is movably inserted into the processing groove (710) along the y-axis direction, and the second shaping assembly (600) is in pressure connection with the second side of the preformed section (730) along the y-axis direction and applies extrusion force to the preformed section (730) so as to reduce the groove width of the preformed section (730) along the x-axis direction;

the second preformed component (500) is movably inserted into the processing groove (710) along the y-axis direction, and bends the plate (720) to be processed and continuously forms a preformed section (730);

leaving the first preform assembly (100) and the first shaping assembly (200) from the processing tank (710), and moving the second preform assembly (500), the second shaping assembly (600) and the second discharge member (320) a predetermined distance along the x-axis direction toward the discharge end such that the first preform assembly (100), the second preform assembly (500), the first shaping assembly (200) and the second shaping assembly (600) are staggered along the x-axis direction;

And repeating the steps, and continuing to process the plate to be processed (720).