Stamping die for inner plate of vehicle door

Abstract

The invention relates to the technical field of stamping dies, and particularly discloses a stamping die for a vehicle door inner plate. The upper die base is arranged opposite to the lower die base; the male die core is arranged on the upper surface of the lower die base; the female die core is matched with the male die core, and the female die core is arranged on the lower surface of the upper die base; the lower knife block comprises a lower knife holder and a lower knife edge vertically and upwards extending out of the surface of the lower knife holder, the lower knife holder is installed on the upper surface of the lower die holder and arranged on the periphery of the male die core at intervals, and a collecting groove is formed in the surface of the lower knife holder and located in the side, away from the male die core, of the lower knife edge; and the upper cutter block is matched with the lower cutter block, the upper cutter block comprises an upper cutter holder and an upper cutting edge vertically and downwards extending out of the surface of the upper cutter holder, the upper cutter holder is installed on the lower surface of the upper die holder and arranged on the periphery of the female die core at intervals, and the upper cutting edge is arranged above the collecting groove. According to the stamping die for the vehicle door inner plate, chippings generated by stamping and corner cutting can be collected, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a stamping die for an inner panel of a vehicle door. Background Art

[0002] The car door is composed of the door outer panel, door inner panel, door window frame, door glass guide groove, door hinge, door lock and door window accessories. The inner panel and the outer panel are combined by flanging, bonding, roll welding and other methods. In view of different bearing capacity, the outer panel is required to be light and the inner panel is required to be strong and able to withstand greater impact. Among them, the inner door panel is manufactured by stamping. During stamping, the part of the inner door panel close to the wheel cover is cut off so that the inner door panel can adapt to the curvature of the wheel cover. When the current stamping mold performs the corner cutting process on the inner door panel, the debris generated by the cutting will be brought into the mold cavity, affecting the surface quality of the inner door panel during stamping. Summary of the invention

[0003] The purpose of the present invention is to provide a stamping die for a vehicle door inner panel, which can collect debris generated by stamping and cutting corners and improve the quality of the product.

[0004] In order to achieve the above object, the present invention provides a stamping die for a door inner panel, comprising:

[0005] Lower die seat;

[0006] An upper die base is arranged opposite to the lower die base, and the lower die base and the upper die base are configured to be close to or far away from each other;

[0007] A punch core is arranged on the upper surface of the lower die seat;

[0008] A female mold core, adapted to the male mold core, and the female mold core is arranged on the lower surface of the upper mold base;

[0009] A lower knife block, comprising a lower knife seat and a lower knife edge extending vertically upward from the surface of the lower knife seat, wherein the lower knife seat is mounted on the upper surface of the lower die seat and is spaced apart from the outer periphery of the punch core, and the surface of the lower knife seat has a collecting groove, and the collecting groove is located on a side of the lower knife edge away from the punch core; and

[0010] An upper knife block is adapted to the lower knife block, and the upper knife block includes an upper knife seat and an upper knife blade extending vertically downward from the surface of the upper knife seat. The upper knife seat is installed on the lower surface of the upper die seat and is spaced apart at the outer periphery of the die core. The upper knife blade is arranged above the collecting groove. When the lower die seat and the upper die seat are close to each other, the side of the lower knife blade away from the punch core is parallel to the side of the upper knife blade close to the die core and moves relatively.

[0011] In some embodiments, it includes a first pressure ring and a second pressure ring which are correspondingly arranged. The first pressure ring is arranged on the upper surface of the lower die base and is located between the lower knife block and the punch core. The second pressure ring is arranged on the lower surface of the upper die base and is located between the upper knife block and the die core.

[0012] In some embodiments, it includes correspondingly arranged guide pins and guide sleeves, wherein the guide pins are arranged on the upper surface of the lower mold base, and the guide sleeves are arranged on the lower surface of the upper mold base. When the lower mold base and the upper mold base are brought close to each other, the guide pins are slidably arranged in the guide sleeves.

[0013] In some embodiments, corresponding positioning keys and positioning grooves are included, wherein the positioning key is disposed on the upper surface of the lower mold base, and the positioning groove is disposed on the lower surface of the upper mold base. When the lower mold base and the upper mold base are brought close to each other, the positioning key is disposed in the positioning groove.

[0014] In some embodiments, the upper surface of the lower die seat has a waste area, the waste area is located on the side of the lower cutting block away from the punch core, and the stamping die includes a positioning block installed in the waste area, and the positioning block is used to position the corner cutting waste.

[0015] In some embodiments, a waste sensor is included. The waste sensor is installed in the waste area, and the waste sensor is used to detect whether waste is on the waste area.

[0016] In some embodiments, the lower tool holder has a first mounting hole and a first connecting member, and the first connecting member passes through the first mounting hole to fix the lower tool holder to the upper surface of the lower mold holder.

[0017] In some embodiments, the upper tool seat has a second mounting hole and a second connecting member, and the second connecting member passes through the second mounting hole to fix the upper tool seat to the lower surface of the upper mold seat.

[0018] In some embodiments, the length of the collecting groove, the length of the lower tool seat and the length of the upper tool seat are all equal.

[0019] In some embodiments, the upper blade block and the lower blade block are respectively provided with three pieces, and the three upper blade blocks and the three lower blade blocks are arranged in a straight line.

[0020] The present invention provides a stamping die for a vehicle door inner panel, which has the following beneficial effects compared with the prior art:

[0021] The lower knife block includes a lower knife seat and a lower blade extending vertically upward from the surface of the lower knife seat, the surface of the lower knife seat has a collecting groove, and the collecting groove is located on the side of the lower blade away from the punch core. The upper knife block includes an upper knife seat and an upper blade extending vertically downward from the surface of the upper knife seat, the upper knife seat is installed on the lower surface of the upper die seat and is spaced at the outer periphery of the die core, and the upper blade is arranged above the collecting groove. When the lower die seat and the upper die seat approach each other, the side of the lower blade away from the punch core and the side of the upper blade close to the die core are parallel and move relative to each other, so that the debris generated by cutting falls into the collecting groove and avoids entering the punch core or the die core, thereby improving the quality of the stamping product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of an enlarged vertical cross-section of a stamping die for an inner door panel provided in an embodiment of the present invention.

[0023] Figure 2 A schematic top view of the three-dimensional structure of a lower die base of a stamping die for a vehicle door inner panel provided in an embodiment of the present invention.

[0024] Figure 3 for Figure 2 Enlarged structural diagram of the waste area.

[0025] Figure 4 A schematic diagram of the enlarged three-dimensional structure of the lower knife block of the stamping die for the inner door panel provided in an embodiment of the present invention.

[0026] Figure 5 A schematic bottom-up stereoscopic structural diagram of an upper die base of a stamping die for a vehicle door inner panel provided in an embodiment of the present invention.

[0027] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of the upper knife block.

[0028] Figure 7 A partially enlarged structural schematic diagram of a lower knife block and an upper knife block of a stamping die for a vehicle door inner panel provided by an embodiment of the present invention, in which the lower knife block and the upper knife block are close to each other.

[0029] In the figure: 1. lower die seat; 11. first pressure ring; 12. guide column; 13. positioning key; 14. waste area; 15. positioning block; 16. waste sensor; 2. upper die seat; 21. second pressure ring; 22. guide sleeve; 23. positioning groove; 3. die core; 4. die core; 5. lower knife block; 51. lower knife seat; 511. first mounting hole; 52. lower blade; 53. collecting groove; 6. upper knife block; 61. upper knife seat; 611. second mounting hole; 62. upper blade. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0031] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.

[0032] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figure 1-7 As shown, the stamping die for the inner door panel provided by the embodiment of the present invention comprises a lower die base 1, an upper die base 2, a punch core 3, a die core 4, a lower cutter block 5 and an upper cutter block 6. During operation, the workpiece is placed between the lower die base 1 and the upper die base 2, and the lower die base 1 and the upper die base 2 are brought close to each other, so that the punch core 3 and the die core 4 stamp the workpiece, and the lower cutter block 5 and the upper cutter block 6 are brought close to each other to cut off the edges and corners of the workpiece, so as to obtain the inner door panel and the corner cutting waste. After completing the above process, the inner door panel and the corner cutting waste are grabbed by the robot end picker in cooperation with the suction cup to realize automated production.

[0034] The upper die base 2 is arranged opposite to the lower die base 1, and the lower die base 1 and the upper die base 2 are configured to be close to or far away from each other. Specifically, the lower die base 1 is installed on the workbench and its position is relatively fixed. The upper part of the upper die base 2 is connected to the driving member, and the driving member drives the upper die base 2 to move up or down, so as to achieve the lower die base 1 and the upper die base 2 to move close to or away from each other. Among them, the driving member adopts a cylinder, a hydraulic cylinder or an electric push rod.

[0035] The punch core 3 is arranged on the upper surface of the lower die base 1. During the stamping process, the punch core 3 can form an inwardly concave structure on the surface of the workpiece.

[0036] The die core 4 is matched with the punch core 3, and the die core 4 is arranged on the lower surface of the upper die base 2. During the stamping process, the die core 4 can form a structure protruding outward on the surface of the workpiece.

[0037] The lower knife block 5 includes a lower knife seat 51 and a lower blade 52 extending vertically upward from the surface of the lower knife seat 51. The lower knife seat 51 is installed on the upper surface of the lower die seat 1 and is spaced apart at the outer periphery of the punch core 3. The surface of the lower knife seat 51 has a collecting groove 53, which is located on the side of the lower blade 52 away from the punch core 3. The collecting groove 53 is used to collect the debris generated during the cutting process of the workpiece to prevent the debris from entering the cavity, causing the surface of the workpiece to be uneven and affecting the product quality.

[0038] The upper blade block 6 is adapted to the lower blade block 5. The upper blade block 6 includes an upper blade seat 61 and an upper blade 62 extending vertically downward from the surface of the upper blade seat 61. The upper blade seat 61 is installed on the lower surface of the upper die seat 2 and is arranged at intervals on the outer periphery of the die core 4. The upper blade 62 is arranged above the collecting groove 53. When the lower die seat 1 and the upper die seat 2 are close to each other, the side of the lower blade 52 away from the punch core 3 and the side of the upper blade 62 close to the die core 4 are parallel and move relative to each other. In this way, the workpiece is placed between the lower blade block 5 and the upper blade block 6, and the side of the lower blade 52 away from the punch core 3 and the side of the upper blade 62 close to the die core 4 are offset to cut the workpiece, and the resulting debris falls into the collecting groove 53.

[0039] Based on the above-mentioned structural setting, when the lower die base 1 and the upper die base 2 move closer to each other, the lower blade 52 away from the side of the punch core 3 and the upper blade 62 close to the side of the die core 4 are parallel and move relative to each other, so that the debris generated by cutting falls into the collecting groove 53 and avoids entering the punch core 3 or the die core 4, thereby improving the quality of the stamped product.

[0040] like Figure 2 and 5 As shown, in some embodiments, the stamping die of the inner door panel includes a first blank holder ring 11 and a second blank holder ring 21 which are correspondingly arranged. The first blank holder ring 11 is arranged on the upper surface of the lower die seat 1 and is located between the lower knife block 5 and the punch core 3. The second blank holder ring 21 is arranged on the lower surface of the upper die seat 2 and is located between the upper knife block 6 and the die core 4. Specifically, if the first blank holder ring 11 is a structure protruding outward from the upper surface of the lower die seat 1, the second blank holder ring 21 is a structure recessed inwardly in the lower surface of the upper die seat 2; conversely, if the first blank holder ring 11 is a structure recessed inwardly in the upper surface of the lower die seat 1, the second blank holder ring 21 is a structure protruding outwardly from the lower surface of the upper die seat 2. During stamping and forming, the first blank holder ring 11 and the second blank holder ring 21 cooperate to clamp the workpiece to prevent the workpiece from wrinkling during the stamping and drawing process.

[0041] like Figure 2 and 5As shown, in some embodiments, the stamping die of the door inner panel includes a correspondingly arranged guide post 12 and a guide sleeve 22, the guide post 12 is arranged on the upper surface of the lower die base 1, and the guide sleeve 22 is arranged on the lower surface of the upper die base 2, and when the lower die base 1 and the upper die base 2 are close to each other, the guide post 12 is slidably arranged in the guide sleeve 22. The arrangement and use of the guide post 12 and the guide sleeve 22 can improve the stability of the relative movement between the lower die base 1 and the upper die base 2 and provide working accuracy.

[0042] like Figure 2 and 5 As shown, in some embodiments, the stamping die of the door inner panel includes corresponding positioning keys 13 and positioning grooves 23, the positioning keys 13 are arranged on the upper surface of the lower die base 1, and the positioning grooves 23 are arranged on the lower surface of the upper die base 2. When the lower die base 1 and the upper die base 2 are close to each other, the positioning keys 13 are arranged in the positioning grooves 23. The positioning keys 13 and the positioning grooves 23 are used in combination to achieve precise positioning, thereby ensuring the accuracy and consistency of the stamping parts and improving production efficiency.

[0043] like Figure 3 As shown, in some embodiments, the upper surface of the lower die seat 1 has a waste area 14, and the waste area 14 is located on the side of the lower cutter block 5 away from the punch core 3. The stamping die includes a positioning block 15, and the positioning block 15 is installed in the waste area 14. The positioning block 15 is used to position the corner cutting waste. Among them, the waste area 14 is used to accommodate the corner cutting waste, and the positioning block 15 is used to support the corner cutting waste to prevent it from moving during the processing process and falling out of the lower die seat 1, which is not conducive to collection.

[0044] like Figure 3 As shown, in some embodiments, the stamping die of the door inner panel includes a waste sensor 16, which is installed in the waste area 14. The waste sensor 16 is used to detect whether the waste is on the waste area 14, so as to improve the safety of production. Specifically, the waste sensor 16 adopts a photoelectric sensor or an image sensor.

[0045] like Figure 4 As shown, in some embodiments, the lower knife seat 51 has a first mounting hole 511 and a first connecting member, and the first connecting member passes through the first mounting hole 511 to fix the lower knife seat 51 to the upper surface of the lower mold base 1. The first connecting member is a screw or a pin to ensure the stability of the installation structure of the lower knife seat 51.

[0046] like Figure 6 As shown, in some embodiments, the upper knife seat 61 has a second mounting hole 611 and a second connecting member, and the second connecting member passes through the second mounting hole 611 to fix the upper knife seat 61 to the lower surface of the upper mold seat 2. The second connecting member is a screw or a pin to ensure the stability of the mounting structure of the upper knife seat 61.

[0047] In some embodiments, the length of the collecting groove 53, the length of the lower knife seat 51 and the length of the upper knife seat 61 are all equal, so that the cut debris can all fall into the collecting groove 53. In addition, the height of the positioning key 13 is less than the height of the guide column 12. It is ensured that the guide column 12 has sufficient travel to meet the stamping process, and at the same time, the height of the positioning key 13 is prevented from being too high to affect the smoothness of the stamping process.

[0048] In some embodiments, the upper blade block 6 and the lower blade block 5 are respectively provided with three pieces, and the three upper blade blocks 6 and the three lower blade blocks 5 are arranged in a straight line. By providing multiple upper blade blocks 6 and lower blade blocks 5, it is convenient to replace them when they are damaged.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A stamping die for a door inner panel, characterized in that: include: Lower die seat; An upper die base is arranged opposite to the lower die base, and the lower die base and the upper die base are configured to be close to or far away from each other; A punch core is arranged on the upper surface of the lower die base; A female mold core, adapted to the male mold core, and the female mold core is arranged on the lower surface of the upper mold base; A lower knife block, comprising a lower knife seat and a lower knife edge extending vertically upward from the surface of the lower knife seat, wherein the lower knife seat is mounted on the upper surface of the lower die seat and is spaced apart from the outer periphery of the punch core, and the surface of the lower knife seat has a collecting groove, and the collecting groove is located on a side of the lower knife edge away from the punch core; as well as An upper knife block is adapted to the lower knife block, and the upper knife block includes an upper knife seat and an upper knife blade extending vertically downward from the surface of the upper knife seat. The upper knife seat is installed on the lower surface of the upper die seat and is spaced apart at the outer periphery of the die core. The upper knife blade is arranged above the collecting groove. When the lower die seat and the upper die seat are close to each other, the side of the lower knife blade away from the punch core is parallel to the side of the upper knife blade close to the die core and moves relatively.

2. The stamping die for the inner door panel according to claim 1, characterized in that: It includes a first pressure ring and a second pressure ring which are correspondingly arranged. The first pressure ring is arranged on the upper surface of the lower die seat and is located between the lower knife block and the punch core. The second pressure ring is arranged on the lower surface of the upper die seat and is located between the upper knife block and the die core.

3. The stamping die for the inner door panel according to claim 1, characterized in that: It includes correspondingly arranged guide pillars and guide sleeves, wherein the guide pillars are arranged on the upper surface of the lower die seat, and the guide sleeves are arranged on the lower surface of the upper die seat. When the lower die seat and the upper die seat are close to each other, the guide pillars are slidably arranged in the guide sleeves.

4. The stamping die for the inner door panel according to claim 1, characterized in that: It includes corresponding positioning keys and positioning grooves, wherein the positioning key is arranged on the upper surface of the lower die base, and the positioning groove is arranged on the lower surface of the upper die base. When the lower die base and the upper die base are close to each other, the positioning key is arranged in the positioning groove.

5. The stamping die for the inner door panel according to claim 1, characterized in that: The upper surface of the lower die seat has a waste area, and the waste area is located on the side of the lower knife block away from the punch core. The stamping die includes a positioning block, and the positioning block is installed in the waste area. The positioning block is used to position the corner cutting waste.

6. The stamping die for the inner door panel according to claim 5, characterized in that: A waste material sensor is included. The waste material sensor is installed in the waste material area and is used to detect whether waste material is on the waste material area.

7. The stamping die for the inner door panel according to claim 1, characterized in that: The lower knife seat has a first mounting hole and a first connecting member, and the first connecting member passes through the first mounting hole to fix the lower knife seat on the upper surface of the lower mold seat.

8. The stamping die for the inner door panel according to claim 1, characterized in that: The upper knife seat has a second mounting hole and a second connecting member, and the second connecting member passes through the second mounting hole to fix the upper knife seat on the lower surface of the upper mold seat.

9. The stamping die for the inner door panel according to claim 1, characterized in that: The length of the collecting groove, the length of the lower knife seat and the length of the upper knife seat are all equal.

10. The stamping die for the inner door panel according to claim 1, characterized in that: The upper knife blocks and the lower knife blocks are respectively provided with three pieces, and the three upper knife blocks and the three lower knife blocks are arranged in a straight line.

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