Double-station stamping die for automobile panel

Abstract

The utility model relates to the technical field of automobile parts manufacturing, and specifically discloses a double-station stamping die for automobile plate parts. The double-station stamping die for automobile plate parts comprises an upper die holder and a lower die holder arranged in a vertical direction, two die cores are arranged on the lower die holder at intervals, two cores are arranged on the upper die holder at intervals, and one core is matched with one die core; the lower die holder is connected with a hollow ring module and a movable module movably arranged in the ring module; a bumper is arranged below the movable module; the die core comprises a main die core and a plurality of die core inserts arranged on both sides and one end of the main die core, the main die core is connected to the top surface of the movable module, and each die core insert is connected to the ring module; the ring module is provided with a first limiting assembly for limiting the main die core and a plurality of second limiting assemblies for limiting the die core inserts. The double-station stamping die for automobile plate parts can improve production efficiency while ensuring the forming quality and improve the utilization rate of the machine table.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts manufacturing, especially to a double-station stamping die for automobile plate parts. BACKGROUND

[0002] At present, when stamping forming is carried out on automobile plate parts, the stamping die used can only stamp form one automobile plate part at a time, and the production efficiency is low. Through research, the multi-piece one-mold production mode not only can reduce manpower, material resources and financial resources, improve the production line efficiency, but also can improve the utilization rate of the machine table surface, so that small molds can be produced on large presses. Therefore, the existing stamping die for automobile plate parts is improved, and a double-station stamping die for automobile plate parts is provided. SUMMARY

[0003] The utility model discloses a double-station stamping die for automobile plate parts, which can improve production efficiency while ensuring forming quality and improve the utilization rate of the machine table surface.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] A double-station stamping die for automobile plate parts comprises an upper die holder and a lower die holder arranged above and below, two die cores are arranged on the lower die holder at intervals, two core pins are arranged on the upper die holder at intervals, and one core pin is matched with one die core.

[0006] The lower die holder is connected with a hollow ring module and a movable module movably arranged in the ring module; a buffer is arranged below the movable module; the die core comprises a main die core and a plurality of die core inserts arranged on both sides and one end of the main die core, the main die core is connected to the top surface of the movable module, and each die core insert is connected to the ring module; the ring module is provided with a first limiting assembly for limiting the main die core and a plurality of second limiting assemblies for limiting the die core inserts.

[0007] Further, the first limiting assembly and the second limiting assembly each comprise an L-shaped connecting block, a groove is formed on one side of the connecting block, an L-shaped first limiting block and two connecting rods arranged above and below are arranged in the groove, one end of the connecting rod is hinged in the groove, and the other end is hinged with the first limiting block; a metal spring plate is connected in the groove, one end of the metal spring plate abuts against the connecting rod above; a locking piece is arranged on the connecting block for locking the lower end of the first limiting block.

[0008] Further, a first adjusting hole in the shape of a long strip is formed on the connecting block, and a first locking screw connected with the ring module is arranged in the first adjusting hole.

[0009] Further, the first limiting assembly and the second limiting assembly further comprise at least one L-shaped second limiting block, a long strip-shaped second adjusting hole is formed in the second limiting block, and a second locking screw connected with the ring module is arranged in the second adjusting hole.

[0010] Further, the top surface of the second limiting block is provided with an inclined surface inclined downward towards the limiting end thereof.

[0011] Further, the core is provided with a plurality of avoiding grooves for avoiding the second limiting blocks or the connecting blocks and the first limiting block.

[0012] Further, a plurality of positioning pads are arranged between the inner side surface of the ring module and the die insert blocks.

[0013] Further, a plurality of spring pins are embedded in the main die insert.

[0014] Further, a plurality of material ejecting rods are slidably arranged in the core, and the material ejecting rods are connected with the driving end of the nitrogen spring installed on the upper die seat.

[0015] Further, the top surface of the lower die seat is provided with two lower mounting grooves, and one ring module is mounted in one mounting groove; the bottom surface of the upper die seat is provided with two upper mounting grooves corresponding to the two lower mounting grooves respectively, and the core comprises a plurality of core blocks spliced and mounted in the upper mounting grooves.

[0016] The automobile panel double-station stamping die has the advantages that:

[0017] 1. The automobile panel double-station stamping die, the lower die seat is connected with the hollow ring module and the movable module movably arranged in the ring module, the buffer is arranged below the movable module, the main die insert is arranged on the movable module, the die insert blocks are arranged on both sides and one end of the main die insert and connected with the ring module, the first limiting assembly is used for limiting the main die insert, and the second limiting assembly is used for limiting the die insert blocks; in the die closing process, the movable modules in the two ring modules and the main die insert and the core jointly move downward, the state of the two sides is ensured to be the same, and thus two automobile panels are completed by one-time stamping, the production efficiency is high, and the forming quality of the automobile panels can be ensured.

[0018] 2. The automobile panel double-station stamping die can be installed on a large press machine, and the use rate of the machine table surface is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a structure schematic view of the automobile panel double-station stamping die.

[0020] Fig. 2This is a structural diagram of the ring module, the active module, the main mold core, and the mold core insert.

[0021] Fig. 3 This is a structural schematic diagram of the first limiting component.

[0022] Fig. 4 This is a cross-sectional view of the first limiting component.

[0023] Fig. 5 This is a schematic diagram of the second limiting block.

[0024] Fig. 6 This is a structural diagram of the upper mold base and the core. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figs. 1 to 6 As shown, a dual-station stamping die for automotive sheet metal includes an upper die base 1 and a lower die base 2 arranged vertically. The lower die base 2 has two die cores 3 spaced apart, and the upper die base 1 has two cores 4 spaced apart, with each core 4 engaging with one die core 3. The lower die base 2 is connected to a hollow ring module 51 and a movable module 52 vertically movably disposed within the ring module 51. A buffer is located below the movable module 52. The die core 3 includes a main die core 31 and several die core inserts 32 located on both sides and one end of the main die core 31. The main die core 31 is connected to the top surface of the movable module 52, and each die core insert 32 is connected to the ring module 51. The ring module 51 is provided with a first limiting component 6 for limiting the main die core 31 and a second limiting component for limiting the die core inserts 32.

[0027] Specifically, in this embodiment, the top surface of the lower mold base 2 has two lower mounting slots 21, and a ring module 51 is installed in one of the lower mounting slots 21. A side positioning plate 511 is connected to the side of the ring module 51 to position the ring module 51 within the lower mounting slot 21, while reducing contact between the ring module 51 and the side of the lower mounting slot 21, thus reducing installation difficulty.

[0028] Furthermore, several positioning pads 7 are provided between the inner side of the ring module 51 and each mold core insert 32 to accurately position each mold core insert 32.

[0029] In this embodiment, the main mold core 31 is composed of four main mold core blocks. The movable module 52 is provided with a positioning block 521 for positioning the main mold core blocks. Two mold core inserts 32 are respectively provided on both sides of the main mold core 31, and one mold core insert 32 is provided at the small end of the main mold core 31. The first limiting component 6 is provided at the large end of the main mold core 31.

[0030] likeFigs. 2-4 As shown, the first limiting component 6 includes an L-shaped connecting block 61. A groove 611 is formed on one side of the connecting block 61. An L-shaped first limiting block 62 and two connecting rods 63 arranged vertically are disposed within the groove 611. One end of each connecting rod 63 is hinged within the groove 611, and the other end is hinged to the first limiting block 62. A metal spring 64 is connected within the groove 611, with one end of the spring abutting against the upper connecting rod 63. A locking member 65 is provided on the connecting block 61 for locking the lower end of the first limiting block 62. Preferably, the locking member 65 is a pin that is pluggably connected to the connecting block 61. This pin can limit the lower end of the first limiting block 62 to prevent the first limiting block 62, which is in a pressed state, from moving upwards.

[0031] In use, under the action of the metal spring 64 and the linkage of the two connecting rods 63, the first limiting block 62 rotates and moves downward until it contacts the bottom surface of the limiting groove opened on the top surface of the main mold core block. The locking member 65 locks the first limiting block 62, thereby limiting the main mold core block.

[0032] Furthermore, the connecting block 61 has an elongated first adjustment hole 612, and a first locking screw connected to the ring module 51 is provided in the first adjustment hole 612. In use, the position of the first locking screw in the first adjustment hole 612 can be adjusted to limit the position of the first limiting block 62 on the main mold core block.

[0033] In this embodiment, the first limiting component 6 further includes at least one L-shaped second limiting block 66. The second limiting block 66 has an elongated second adjusting hole 661, and a second locking screw connected to the ring module 51 is disposed in the second adjusting hole 661. In use, the limiting position of the second limiting block 66 on the main mold core block can be adjusted by adjusting the position of the second locking screw in the second adjusting hole 661.

[0034] In this embodiment, the core 4 is provided with a clearance groove 411 for avoiding the second limiting block 66 or the connecting block 61 and the first limiting block 62.

[0035] Furthermore, the top surface of the second limiting block 66 is provided with a slope 662 that slopes downward toward its limiting end, so that the upper end of the second limiting block 66 can smoothly enter the corresponding clearance groove 411 on the core 4 when the mold is closed. Similarly, the upper ends of the connecting block 61 and the first limiting block 62 are also provided with similar slope structures.

[0036] In this embodiment, the second limiting component is basically the same as the first limiting component 6. The difference between the two is that the second limiting component is provided with a plurality of second limiting blocks 66, and each second limiting block 66 is evenly distributed on both sides and the small end of the main mold core 31.

[0037] In this dual-station stamping die for automotive sheet metal, the first limiting component 6 and the second limiting component can be used to accurately limit the main die core 31 and the die core insert 32, thereby improving the stamping forming accuracy of automotive sheet metal.

[0038] In this embodiment, the main mold core 31 is embedded with several spring pins 33 for floating positioning of the stamped automotive sheet metal.

[0039] In this embodiment, the buffer is preferably a nitrogen spring installed on the lower mold base 2 at the center below the active module 52.

[0040] In this embodiment, the bottom surface of the upper mold base 1 has two upper mounting slots corresponding to the two lower mounting slots 21, and the core 4 includes a plurality of core blocks 41 spliced ​​and installed in the upper mounting slots. Among them, a plurality of ejector rods 8 are slidably arranged in the core blocks 41. The ejector rods 8 are connected to the drive end of the nitrogen spring 81 installed on the upper mold base 1, and are used to detach the stamped automotive sheet from the core 4.

[0041] This utility model discloses a dual-station stamping die for automotive sheet metal. During use, under the pressure of a hydraulic press, the upper die base 1 moves downwards, causing the core 4 to close with the die insert 3 on the lower die base 2. During the closing process, the movable modules 52 within the two ring modules 51 move downwards together with the main die insert 31 and the core 4, ensuring that both sides are in the same state. This allows for the stamping of two automotive sheet metal parts in a single operation, resulting in high production efficiency and guaranteed forming quality. Furthermore, this dual-station stamping die for automotive sheet metal can be installed on a large press, improving the utilization rate of the machine table.

[0042] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A dual-station stamping die for automotive sheet metal, characterized in that, It includes an upper mold base (1) and a lower mold base (2) arranged vertically. The lower mold base (2) is provided with two mold cores (3) spaced apart, and the upper mold base (1) is provided with two mold cores (4) spaced apart. Each mold core (4) is engaged with one mold core (3). The lower mold base (2) is connected to a hollow ring module (51) and a movable module (52) that is movably disposed within the ring module (51); a buffer is provided below the movable module (52); the mold core (3) includes a main mold core (31) and several mold core inserts (32) disposed on both sides and one end of the main mold core (31); the main mold core (31) is connected to the top surface of the movable module (52), and each mold core insert (32) is connected to the ring module (51); the ring module (51) is provided with a first limiting component (6) for limiting the main mold core (31) and several second limiting components for limiting the mold core inserts (32).

2. The dual-station stamping die for automotive sheet metal according to claim 1, characterized in that, Both the first limiting component (6) and the second limiting component include an L-shaped connecting block (61). A groove (611) is provided on one side of the connecting block (61). An L-shaped first limiting block (62) and two connecting rods (63) arranged vertically are provided in the groove (611). One end of the connecting rod (63) is hinged in the groove (611), and the other end is hinged to the first limiting block (62). A metal spring (64) is connected in the groove (611). One end of the metal spring (64) abuts against the connecting rod (63) located above. A locking member (65) for locking the lower end of the first limiting block (62) is provided on the connecting block (61).

3. The dual-station stamping die for automotive sheet metal according to claim 2, characterized in that, The connecting block (61) has a long strip-shaped first adjustment hole (612), and a first locking screw connected to the ring module (51) is provided in the first adjustment hole (612).

4. The dual-station stamping die for automotive sheet metal according to claim 2, characterized in that, The first limiting component (6) and the second limiting component further include at least one L-shaped second limiting block (66), the second limiting block (66) is provided with a long strip-shaped second adjustment hole (661), and a second locking screw connected to the ring module (51) is provided in the second adjustment hole (661).

5. The dual-station stamping die for automotive sheet metal according to claim 4, characterized in that, The top surface of the second limiting block (66) is provided with an inclined surface (662) that slopes downward toward its limiting end.

6. The dual-station stamping die for automotive sheet metal according to claim 4, characterized in that, The core (4) has a plurality of clearance grooves (411) for avoiding each of the second limiting blocks (66) or the connecting block (61) and the first limiting block (62).

7. The dual-station stamping die for automotive sheet metal according to claim 1, characterized in that, A number of positioning pads (7) are provided between the inner side of the ring module (51) and each of the mold core inserts (32).

8. The dual-station stamping die for automotive sheet metal according to claim 1, characterized in that, The main mold core (31) is embedded with several spring pins (33).

9. A dual-station stamping die for automotive sheet metal according to claim 1, characterized in that, A plurality of ejector rods (8) are slidably arranged inside the core (4), and the ejector rods (8) are connected to the drive end of a nitrogen spring (81) installed on the upper mold base (1).

10. A dual-station stamping die for automotive sheet metal according to claim 1, characterized in that, The lower mold base (2) has two lower mounting slots (21) on its top surface, and one ring module (51) is installed in one of the mounting slots (21); the upper mold base (1) has two upper mounting slots on its bottom surface that correspond to the two lower mounting slots (21) respectively, and the core (4) includes a number of core blocks (41) spliced ​​and installed in the upper mounting slots.

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