Deep drawing stamping die for automobile panel with delayed ejection mechanism

Abstract

The application relates to a deep-drawing automobile sheet metal stamping die with a delayed ejection mechanism, belonging to the field of stamping dies, which comprises an upper die and a lower die, the lower die is provided with a stamping groove one, the bottom of the stamping groove one is provided with a stamping groove two, and the upper die is embedded in the stamping groove one and the stamping groove two; the stamping groove one is provided with a forming part one and a forming part two, the forming part one slides on the bottom wall of the stamping groove one, the forming part one is provided with a groove, a sliding gap is left between one end of the forming part one away from the forming part two and the groove wall of the stamping groove one, and the forming part one abuts against the forming part two. The forming part one and the forming part two are arranged, the forming part one slides on the bottom wall of the stamping groove one, and the groove is separated from the protruding block through the movement of the forming part one. The application has the effects of reducing the abrasion of the finished surface of the die, and making the ejection of the die body more convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the field of stamping dies, in particular to a deep-drawing automobile sheet metal part stamping die with a delayed ejection mechanism. BACKGROUND

[0002] A stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, which is called a cold stamping die (commonly known as a cold stamping die). Stamping is a kind of pressure processing method that separates or plastically deforms materials at room temperature by using a die installed on a press to apply pressure to the materials.

[0003] In actual use, according to the use of the die product, some die products need to have protrusions or grooves on the surface, and after the die is used to stamp and form such die products, the die product is not convenient to be ejected, which needs to be improved. SUMMARY

[0004] In order to solve the problem that the die product is not convenient to be ejected, the application provides a deep-drawing automobile sheet metal part stamping die with a delayed ejection mechanism.

[0005] The application provides a deep-drawing automobile sheet metal part stamping die with a delayed ejection mechanism, which adopts the following technical scheme:

[0006] The deep-drawing automobile sheet metal part stamping die with a delayed ejection mechanism comprises an upper die and a lower die, the lower die is provided with a stamping groove one, the stamping groove one is provided with a stamping groove two at the bottom, and the upper die is embedded in the stamping groove one and the stamping groove two; the stamping groove one is provided with a forming part one and a forming part two, the forming part one slides on the bottom wall of the stamping groove one, the forming part one is provided with a groove, a sliding gap is left between one end of the forming part one away from the forming part two and the groove wall of the stamping groove one, and the forming part one abuts against the forming part two.

[0007] By adopting the above technical scheme, when the die raw material is used to stamp and form a deep-drawing automobile sheet metal part, since the surface of the deep-drawing automobile sheet metal part needs to have a certain protrusion, the forming part one of the lower die has a groove used for forming, and the existence of the groove makes the protrusion on the surface of the die product embedded in the groove when the die raw material is stamped into the die product, so that the die product is not convenient to be separated from the stamping groove one; therefore, the forming part one and the forming part two are arranged, the forming part one slides on the bottom wall of the stamping groove one, the groove is separated from the protrusion by moving the forming part one, so that the die product is more convenient to be separated from the stamping groove one, the abrasion of the surface of the die product is reduced, and the overall use is more convenient.

[0008] Optionally, the groove wall of the stamping groove one is provided with a limiting piece, the limiting piece abuts against the forming part one, and the limiting piece limits the movement of the forming part one.

[0009] By adopting the technical scheme, in the actual stamping process, the first forming part is subjected to a force towards the direction away from the second forming part, so that the first forming part and the second forming part are separated, which is easy to cause defects of the stamping forming die product, and the limiting piece is arranged to limit the movement of the first forming part, thereby reducing the defective rate of the die product and improving the yield of the die product.

[0010] Optionally, the lower die is provided with an ejection cavity, a cavity wall of the ejection cavity is provided with an ejection hole, the ejection hole communicates the ejection cavity with the second stamping groove, the ejection cavity is provided with a driving piece and a sliding rod, an end face of the sliding rod close to the second stamping groove is flush with the groove bottom of the second stamping groove, the sliding direction of the sliding rod is a vertical direction, and the driving piece is used to drive the movement of the sliding rod.

[0011] By adopting the technical scheme, the driving piece and the sliding rod are arranged, the sliding rod is driven by the driving piece to abut against the bottom of the die product, so that the die product is conveniently abutted, and secondly, since the movement direction of the sliding rod is a vertical direction, the die product moves along the vertical direction in the movement process, compared with inclined movement, the friction between the die product and the first stamping groove and the second stamping groove is reduced, and the scratches on the surface of the die product are reduced.

[0012] Optionally, the limiting piece is a limiting block, one end of the limiting block abuts against one end of the first forming part away from the second forming part, and the other end abuts against the groove wall of the first stamping groove, the sliding rod is connected with a connecting rod, the driving piece is connected with the connecting rod, and the connecting rod is connected with the limiting block; when the driving piece drives the connecting rod to move the limiting block in a direction away from the groove bottom of the first stamping groove, the connecting rod drives the sliding rod to move in a direction close to the first stamping groove.

[0013] By adopting the technical scheme, the connecting rod is arranged, the movement of the connecting rod is driven by the driving piece to drive the sliding rod to eject the die product, and the movement of the connecting rod also causes the limiting block to be separated from the first stamping groove, in this way, the movement of the limiting block and the ejection of the die product can be controlled by one driving piece, so that the whole use is more convenient.

[0014] Optionally, the limiting block slides on a slot wall of the stamping slot, the sliding direction of the limiting block is vertical direction, the limiting block is close to one end of the inclined surface one of the forming part two, the inclined surface one extends in the direction away from the slot bottom of the stamping slot one to the direction close to the forming part two; the inclined surface one is provided with a sliding groove, the slot opening of the sliding groove is provided with a limiting protrusion, the forming part one is provided with an inclined surface two, the inclined surface two is parallel to the inclined surface one, the inclined surface two is provided with a sliding protrusion, the sliding protrusion is embedded in the sliding groove, the limiting block slides on the forming part two through the sliding groove, and the limiting protrusion limits the separation of the forming part one and the limiting block; when the limiting block moves in the direction away from the slot bottom of the stamping slot one, the forming part one moves in the direction away from the forming part two.

[0015] By adopting the above technical scheme, the limiting block is arranged to slide on the slot wall of the stamping slot, and the inclined surface one and the inclined surface two are arranged, the limiting protrusion is arranged to limit the separation of the forming part one and the limiting block, when the limiting block moves in the direction away from the slot bottom of the stamping slot one, the limiting protrusion drives the forming part one to move in the direction away from the forming part two, so that when the driving member drives the connecting rod to move upward, the movement of the connecting rod drives the limiting block to move in the direction away from the stamping slot one, and drives the forming part one to move in the direction away from the forming part two; and since the connecting rod is connected with the sliding rod, the movement of the connecting rod drives the sliding rod to eject the mold product, so that the ejection operation of the mold product is more convenient.

[0016] Optionally, the sliding rod is provided with a delay hole, the delay hole penetrates the sliding rod, the penetration direction of the delay hole is horizontal direction, the connecting rod slides in the delay hole, and the sliding direction of the connecting rod is the axis direction of the sliding rod.

[0017] By adopting the above technical scheme, in actual use, the limiting block needs to move together with the mold product, if the limiting block is temporarily stuck due to friction and other factors, the mold product may resist the forming part one to make the forming part one abut against the limiting block, such a situation makes the movement of the limiting block more difficult, thereby causing the mold product to be difficult to separate, therefore, the delay hole is arranged, so that after the connecting rod moves, the limiting block moves together, and when the limiting block moves a certain distance until the connecting rod abuts against the hole wall close to the stamping slot one side of the delay hole, the driving of the driving member drives the limiting block and the mold product to move at the same time, through such a situation, the part is stuck in the process of the mold product being ejected, so that the ejection of the mold product is more stable.

[0018] Optionally, the hole wall of the delay hole is provided with a buffer, and the buffer is connected with the connecting rod; when the connecting rod abuts against the hole wall close to the stamping slot one side of the delay hole, the buffer is separated from the connecting rod.

[0019] By adopting the above technical scheme, in actual use, the connecting rod is in a single-side stress state before the connecting rod abuts against the hole wall of the delay hole close to one side of the stamping groove, and long-term use easily accelerates damage of the connecting rod, therefore, the buffer piece is arranged, the connecting rod is stressed more uniformly through the buffer piece, and the service life of the connecting rod is prolonged.

[0020] Optionally, the buffer piece comprises a connecting spring, a connecting magnet one and a connecting magnet two, the connecting spring is located at a side of the connecting rod away from the buffer groove one, one end of the connecting spring away from the connecting rod is connected with the connecting magnet one, the connecting magnet two is located at a hole wall of the delay hole away from the stamping groove one, and the connecting magnet one and the connecting magnet two are mutually attracted.

[0021] By adopting the above technical scheme, the connecting magnet one and the connecting magnet two are arranged, the connecting spring is connected with the connecting magnet one, when the connecting rod moves away from the connecting magnet two, the magnetic force of the connecting magnet one and the connecting magnet two makes the connecting spring stretch, and when the connecting rod abuts against the hole wall of the delay hole close to one side of the stamping groove, the connecting magnet one and the connecting magnet two are separated, through such arrangement, the connecting rod keeps being stressed on both sides in the moving process, the damage of the connecting rod is reduced, and the service life of the assembly is prolonged.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. By arranging the forming part one and the forming part two, the forming part one slides on the bottom wall of the stamping groove one, the recess and the protrusion are separated through the movement of the forming part one, the mold product is more convenient to separate from the stamping groove one, the wear of the surface of the mold product is reduced, and the whole use is more convenient;

[0024] 2. The limiting block slides on the groove wall of the stamping groove one, and the inclined surface one and the inclined surface two are arranged, the limiting protrusion limits the separation of the forming part one and the limiting block, when the limiting block moves away from the groove bottom of the stamping groove one, the limiting protrusion plays a role in driving the forming part one to move away from the forming part two, so that when the driving piece drives the connecting rod to move upward, the movement of the connecting rod makes the limiting block move away from the stamping groove one, and the forming part one moves away from the forming part two; and since the connecting rod connects the sliding rod, the movement of the connecting rod makes the sliding rod eject the mold product, and the ejection operation of the mold product is more convenient;

[0025] 3. The connecting magnet one is connected with the connecting magnet two, the connecting spring connects the connecting magnet one, when the connecting rod moves away from the connecting magnet two, the magnetic force of the connecting magnet one and the connecting magnet two makes the connecting spring stretch, and when the connecting rod abuts against the hole wall of the delay hole close to the punch groove one side, the connecting magnet one and the connecting magnet two are separated, through such arrangement, the connecting rod keeps both sides stressed during movement, reduces the damage of the connecting rod, and improves the service life of the assembly. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall schematic diagram of the embodiment.

[0027] Figure 2 It is the overall schematic diagram of the lower mold.

[0028] Figure 3 It is the sectional view schematic diagram of the lower mold.

[0029] Figure 4 It is the partial sectional view schematic diagram of the lower mold.

[0030] Figure 5 It is Figure 3 The enlarged schematic diagram of A in FIG.

[0031] BRIEF DESCRIPTION OF DRAWINGS: 1, upper mold; 2, lower mold; 3, punch groove one; 4, punch groove two; 5, forming part one; 6, forming part two; 7, groove; 8, sliding gap; 9, limiting block; 10, sliding convex strip; 11, sliding slot; 12, inclined surface one; 13, sliding groove; 14, limiting convex; 15, inclined surface two; 16, sliding convex; 17, ejection cavity; 18, connecting hole; 19, ejection hole; 20, driving piece; 21, sliding rod; 22, connecting rod; 23, delay hole; 24, buffer; 25, connecting spring; 26, connecting magnet one; 27, connecting magnet two. DETAILED DESCRIPTION

[0032] The application will be further described in detail below in combination with the drawings and embodiments.

[0033] The embodiment of the application discloses a deep-drawing automobile sheet metal part stamping die with a delay ejection mechanism. Figure 1 And Figure 2 , comprising an upper mold 1 and a lower mold 2, the lower mold 2 is provided with a punch groove one 3, the punch groove one 3 is located at one end of the lower mold 2 close to the upper mold 1, the bottom of the punch groove one 3 is provided with a punch groove two 4, the upper mold 1 is embedded in the punch groove one 3 and the punch groove two 4 to perform the stamping forming of the mold raw material.

[0034] Referring to Figure 3 And Figure 4, the stamping groove one 3 is equipped with the forming part one 5 and the forming part two 6, the forming part one 5 slides in the bottom wall of the stamping groove one 3, and the sliding direction of the forming part one 5 is the direction close to or away from the forming part two 6. The forming part one 5 is equipped with the groove 7, and the groove 7 is located on the side of the forming part one 5 close to the forming part two 6. The end of the forming part one 5 away from the forming part two 6 and the groove wall of the stamping groove one 3 leave the sliding gap 8, and the forming part one 5 abuts against the forming part two 6.

[0035] The groove wall of the stamping groove one 3 is equipped with the limiting piece, the limiting piece abuts against the forming part one 5, and the limiting piece is used to limit the movement of the forming part one 5. In actual use, the limiting piece is the limiting block 9, and the end of the limiting block 9 close to the forming part two 6 is used to abut against the end of the forming part one 5 away from the forming part two 6. The limiting block 9 is equipped with the sliding convex strip 10, the sliding convex strip 10 is located on the end of the limiting block 9 away from the forming part one 5, and the extension direction of the sliding convex strip 10 is the vertical direction. The groove wall of the stamping groove is equipped with the sliding slot 11, the sliding slot 11 is embedded for the sliding convex strip 10, the limiting block 9 slides on the groove wall of the stamping groove through the sliding convex strip 10, and the sliding direction of the limiting block 9 is the vertical direction.

[0036] The limiting block 9 is equipped with the inclined surface one 12, the inclined surface one 12 is located on the end of the limiting block 9 close to the forming part two 6, and the inclined surface one 12 extends along the direction away from the groove bottom of the stamping groove one 3 to the direction close to the forming part two 6. The inclined surface one 12 is equipped with the sliding groove 13, the extension direction of the sliding groove 13 is the inclined direction of the inclined surface, and the slot of the sliding groove 13 is equipped with the limiting convex 14, and the extension direction of the limiting convex 14 is the extension direction of the sliding groove 13. The forming part one 5 is equipped with the inclined surface two 15, the inclined surface two 15 is parallel to the inclined surface one 12, the inclined surface two 15 is equipped with the sliding convex 16, the sliding convex 16 is embedded in the sliding groove 13, the limiting block 9 slides on the forming part two 6 through the sliding groove 13, and the limiting convex 14 is used to limit the separation of the forming part one 5 and the limiting block 9.

[0037] In actual use, when the limiting block 9 moves in the direction away from the groove bottom of the stamping groove one 3, the forming part one 5 moves in the direction away from the forming part two 6. In other embodiments, the limiting piece can also be a limiting bolt, and the limiting screw passes through the forming part one 5 and penetrates into the bottom wall of the stamping groove one 3.

[0038] Referring to Figure 3 and Figure 5, the lower die 2 is provided with an ejection cavity 17, the ejection cavity 17 is located below the stamping groove two 4, the ejection cavity 17 is provided with a connecting hole 18, the connecting hole 18 is communicated between the stamping groove one 3 and the ejection cavity 17; the cavity wall of the ejection cavity 17 is provided with an ejection hole 19, the ejection hole 19 is communicated between the ejection cavity 17 and the stamping groove two 4. The ejection cavity 17 is provided with a driving part 20, a sliding rod 21 and a connecting rod 22, the sliding rod 21 penetrates the ejection hole 19, the end face of the sliding rod 21 close to the stamping groove two 4 is flush with the groove bottom of the stamping groove two 4, and the sliding direction of the sliding rod 21 is vertical. The driving part 20 is connected with the connecting rod 22, the connecting rod 22 is connected with the limiting block 9, and the driving part 20 is used for driving the connecting rod 22 to move. In actual use, the driving part 20 is a gas cylinder. Alternatively, the driving part 20 can also be an oil cylinder.

[0039] The sliding rod 21 is provided with a delay hole 23, the delay hole 23 penetrates the sliding rod 21, the penetration direction of the delay hole 23 is horizontal, the connecting rod 22 slides in the delay hole 23, and the sliding direction of the connecting rod 22 is the axis direction of the sliding rod 21. The hole wall of the delay hole 23 is provided with a buffer part 24, the buffer part 24 is connected with the connecting rod 22, and the connecting rod 22 is indirectly connected with the sliding rod 21 through the buffer part 24.

[0040] The buffer part 24 includes a connecting spring 25, a connecting magnet one 26 and a connecting magnet two 27, the connecting spring 25 is arranged on the side of the connecting rod 22 away from the buffer groove one, one end of the connecting spring 25 away from the connecting rod 22 is connected with the connecting magnet one 26, the connecting magnet two 27 is located on the hole wall of the delay hole 23 away from the stamping groove one 3, and the connecting magnet one 26 and the connecting magnet two 27 attract each other.

[0041] When the end of the sliding rod 21 close to the stamping groove one 3 is flush with the end face of the groove bottom of the stamping groove two 4, the connecting magnet one 26 and the connecting magnet two 27 are attached, at this time, the limiting block 9 is located in the stamping groove one 3, one end of the limiting block 9 abuts against the groove wall of the stamping groove one 3, and the other end abuts against one end of the forming part two 6 away from the forming part one 5. When it is necessary to eject the mold product, the driving part 20 drives the connecting rod 22 to move towards the stamping groove one 3, the movement of the connecting rod 22 makes the limiting block 9 separate from the stamping groove one 3, and the forming part one 5 and the forming part two 6 are separated. When the connecting magnet one 26 and the connecting magnet two 27 are separated, the movement of the connecting rod 22 makes the sliding rod 21 move upwards and eject the mold product.

[0042] The implementation principle of the deep-drawing automobile sheet metal stamping die with the delayed ejection mechanism is as follows: when the die product needs to be ejected, the connecting rod 22 is driven by the driving member 20 to move towards the direction close to the bottom of the stamping groove 3, at this time, the limiting block 9 is driven by the connecting rod 22 to move away from the bottom of the stamping groove 3, at this time, the limiting protrusion 14 limits the separation of the limiting block 9 and the forming part 5, and therefore the setting of the inclined surface makes the forming part 5 move away from the forming part 6. When the connecting rod 22 reaches the side close to the stamping groove 3 of the wall of the delayed hole 23, the connecting magnet 26 is separated from the connecting magnet 27. With the continuous movement of the connecting rod 22, the die product is ejected by the sliding rod 21.

[0043] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, and therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A deep-drawing stamping die for automotive sheet metal parts with a delayed ejection mechanism, comprising an upper die (1) and a lower die (2), characterized in that: The lower die (2) is provided with a stamping groove 1 (3), and the bottom of the stamping groove 1 (3) is provided with a stamping groove 2 (4). The upper die (1) is embedded in the stamping groove 1 (3) and the stamping groove 2 (4). The stamping groove 1 (3) is provided with forming part 1 (5) and forming part 2 (6). The forming part 1 (5) slides on the bottom wall of the stamping groove 1 (3). The forming part 1 (5) is provided with a groove (7). A sliding gap (8) is left between the end of the forming part 1 (5) away from the forming part 2 (6) and the groove wall of the stamping groove 1 (3). The forming part 1 (5) abuts against the forming part 2 (6). The wall of the stamping groove (3) is provided with a limiting member, which abuts against the forming part (5) and restricts the movement of the forming part (5). The lower mold (2) is provided with an ejection cavity (17), and the ejection cavity (17) has an ejection hole (19) in its cavity wall. The ejection hole (19) connects the ejection cavity (17) with the stamping groove (4). The ejection cavity (17) is provided with a driving member (20) and a sliding rod (21). The end face of the sliding rod (21) near the stamping groove (4) is flush with the bottom of the stamping groove (4). The sliding direction of the sliding rod (21) is vertical. The driving member (20) is used to drive the sliding rod (21) to move. The limiting component is a limiting block (9). One end of the limiting block (9) abuts against the end of the forming part one (5) away from the forming part two (6), and the other end abuts against the groove wall of the stamping groove one (3). The sliding rod (21) is connected to a connecting rod (22). The driving component (20) is connected to the connecting rod (22), and the connecting rod (22) is connected to the limiting block (9). When the driving member (20) drives the connecting rod (22) to make the limiting block (9) move away from the bottom of the stamping groove (3), the connecting rod (22) drives the sliding rod (21) to move closer to the stamping groove (3); The limiting block (9) slides on the wall of the stamping groove (3). The sliding direction of the limiting block (9) is vertical. The end of the limiting block (9) near the forming part (6) has an inclined surface (12). The inclined surface (12) extends from the bottom of the stamping groove (3) towards the forming part (6). The inclined surface one (12) is provided with a sliding groove (13), and the opening of the sliding groove (13) is provided with a limiting protrusion (14). The forming part one (5) is provided with an inclined surface two (15), the inclined surface two (15) is parallel to the inclined surface one (12), the inclined surface two (15) is provided with a sliding protrusion (16), the sliding protrusion (16) is embedded in the sliding groove (13), the limiting block (9) slides through the sliding groove (13) to the forming part two (6), and the limiting protrusion (14) restricts the forming part one (5) from separating from the limiting block (9). When the limiting block (9) moves away from the bottom of the stamping groove (3), the forming part (5) moves away from the forming part (6); The sliding rod (21) is provided with a delay hole (23), the delay hole (23) passes through the sliding rod (21), the passage direction of the delay hole (23) is horizontal, the connecting rod (22) slides in the delay hole (23), and the sliding direction of the connecting rod (22) is the axial direction of the sliding rod (21).

2. The deep-drawing automotive sheet metal stamping die with a delayed ejection mechanism according to claim 1, characterized in that: The delay hole (23) has a buffer (24) on its wall, and the buffer (24) is connected to the connecting rod (22); When the connecting rod (22) abuts against the wall of the delay hole (23) near the side of the stamping groove (3), the buffer (24) separates from the connecting rod (22).

3. The deep-drawing automotive sheet metal stamping die with a delayed ejection mechanism according to claim 2, characterized in that: The buffer (24) includes a connecting spring (25), a first connecting magnet (26) and a second connecting magnet (27). The connecting spring (25) is located on the side of the connecting rod (22) away from the first buffer groove. The end of the connecting spring (25) away from the connecting rod (22) is connected to the first connecting magnet (26). The second connecting magnet (27) is located on the hole wall of the delay hole (23) away from the first stamping groove (3). The first connecting magnet (26) and the second connecting magnet (27) attract each other.

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