A detachable sheet metal die

Abstract

The utility model relates to sheet metal mould technology field, concretely is a detachable sheet metal mould, include: mould platform, link plate, lower mould and upper die, the inside of link plate is provided with U type groove, the inside of U type groove is provided with second locking mechanism, the both sides of mould platform inner wall are provided with first locking mechanism, and second locking mechanism and first locking mechanism all extend to one side of mould platform, the both sides of lower mould and upper die all are provided with positioning assembly, under the action of second locking mechanism, first locking mechanism, trapezoidal block, trapezoidal groove and four positioning assemblies, so that the staff need not with the aid of tool, can carry out convenient dismounting and installation to lower mould and upper die, the staff replaces corresponding lower mould and upper die, to this to bend into other shape's sheet metal, and the operation process is convenient, simultaneously convenient to dismount and maintain to lower mould and upper die to improve the efficiency of lower mould and upper die replacement, and further improved the practicability of mould.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal mold technology, specifically a detachable sheet metal mold. Background Technology

[0002] Sheet metal work is a comprehensive cold processing technology for thin metal sheets, including shearing, punching / cutting / combined cutting, bending, riveting, splicing, and forming. Its significant characteristic is that the thickness of the same part is consistent. Sheet metal has the characteristics of light weight, high strength, electrical conductivity, low cost, and good mass production performance. It has been widely used in the fields of electronics, communications, automotive industry, and medical devices. For example, sheet metal is an essential component in computer cases, mobile phones, and MP3 players.

[0003] A search revealed Chinese patent CN221833162U, which discloses a sheet metal stamping die. By setting up a counting component, during the stamping operation of a sheet metal part placed on a die by a telescopic cylinder driving the punch, a fixed rod installed on the lifting seat moves up and down once. During this process, the turntable can be rotated one revolution through the transmission of the connecting rod, and the number on the counter changes, thereby realizing the automatic counting of sheet metal parts stamping. This eliminates the need for manual subsequent statistical counting of the stamped sheet metal parts and improves the practicality of the stamping die.

[0004] The aforementioned patent has the following shortcomings: since both the upper and lower molds are fixed and installed using conventional bolt installation methods, when it is necessary to bend sheet metal parts of different shapes, workers need to use tools to tighten the bolts one by one to disassemble the upper and lower molds, and then replace them with upper and lower molds of the corresponding size, and then reinstall them by fixing them with bolts. This replacement method increases the labor burden of workers, thereby reducing the efficiency of replacing the upper and lower molds and affecting the efficiency of subsequent sheet metal processing. Therefore, we propose a detachable sheet metal mold. Utility Model Content

[0005] In view of the shortcomings of the prior art mentioned in the background, the present invention provides a detachable sheet metal mold.

[0006] This utility model overcomes the above technical problems by adopting the following technical solution:

[0007] A detachable sheet metal mold includes: a mold platform, a connecting plate, a lower mold, and an upper mold. The connecting plate has a U-shaped groove inside, and a second locking mechanism is provided inside the U-shaped groove. A first locking mechanism is provided between the two sides of the inner wall of the mold platform, and both the second and first locking mechanisms extend to one side of the mold platform. Positioning components are provided on both sides of the lower and upper molds, and the second and first locking mechanisms are movably inserted into four positioning components. Trapezoidal grooves are provided at the bottom of the connecting plate and the top of the mold platform. Trapezoidal blocks are connected to the opposite sides of the lower and upper molds, and two trapezoidal blocks are movably inserted into the two trapezoidal grooves. A U-shaped frame is connected to the top of the mold platform, and clamping mechanisms are provided on both sides of the U-shaped frame, with both clamping mechanisms extending to the inner side of the U-shaped frame.

[0008] As a further embodiment of this utility model: the second locking mechanism includes a second bidirectional threaded rod, a second throttle, two second threaded blocks, two second horizontal plates, and two second three-pronged rods. The second bidirectional threaded rod is rotatably connected between the two sides of the inner wall of the U-shaped groove, and one end of the second bidirectional threaded rod extends to one side of the U-shaped frame. The second throttle is connected to one end of the second bidirectional threaded rod. The two second threaded blocks are threaded to the outer surface of the second bidirectional threaded rod. The two second horizontal plates are respectively connected to the bottom of the second threaded blocks. The two second three-pronged rods are respectively connected to the adjacent sides of the two second horizontal plates.

[0009] As a further embodiment of this utility model: the first locking mechanism includes a first threaded rod, a first throttle, two first threaded blocks, two first horizontal plates, and two first three-pronged rods. The first threaded rod is rotatably connected between the two sides of the inner wall of the mold table, and one end of the first threaded rod extends to one side of the mold table. The first throttle is connected to one end of the first threaded rod. The two first threaded blocks are threadedly connected to the outer surface of the first threaded rod, and the two first threaded blocks extend to the top of the mold table. The two first horizontal plates are respectively connected to the top of the two first threaded blocks, and the two first three-pronged rods are respectively connected to the adjacent side of the two first horizontal plates.

[0010] As a further embodiment of this utility model: the positioning component includes a positioning plate and three insertion holes. The positioning plate is connected to one side of the lower mold, and the three insertion holes are opened on one side of the positioning plate, with one of the second and third insertion rods movably inserted into the interior of the three insertion holes.

[0011] As a further embodiment of this utility model: the clamping mechanism includes a crossbar, a limiting handle, a spring, a limiting plate, and a roller. The crossbar is slidably connected to one side of the U-shaped frame, and one end of the crossbar extends to the inner side of the U-shaped frame. The limiting handle is connected to the other end of the crossbar, the limiting plate is connected to one end of the crossbar, and the spring is connected between one side of the inner wall of the U-shaped frame and one side of the limiting plate, with the spring located outside the crossbar.

[0012] As a further improvement of this utility model: a horizontal groove is provided at the top of the inner wall of the limiting plate, and the roller is rotatably connected inside the horizontal groove.

[0013] As a further embodiment of this utility model: a cylinder is connected to the top of the U-shaped frame, and the output end of the cylinder extends to the top of the inner wall of the U-shaped frame, and the output end of the cylinder is connected to the top of the connecting plate.

[0014] By adopting the above structure, this utility model has the following advantages compared with the prior art:

[0015] 1. In this utility model, through the action of the second locking mechanism, the first locking mechanism, the trapezoidal block, the trapezoidal groove, and the four positioning components, the operator can easily disassemble and install the lower mold and the upper mold without the aid of tools. This makes it convenient for the operator to replace the corresponding lower mold and the upper mold to bend sheet metal into other shapes. The operation process is convenient, and it is also convenient to disassemble and maintain the lower mold and the upper mold, thereby improving the efficiency of replacing the lower mold and the upper mold and thus improving the practicality of the mold.

[0016] 2. In this utility model, the two clamping mechanisms can fix and clamp the two sides of the sheet metal of different lengths before bending, preventing the sheet metal from warping during bending. At the same time, it can also adapt to the situation where the two ends of the sheet metal are close to each other when it is bent, so as to continuously and adaptively limit and fix the sheet metal. The two clamping mechanisms can always maintain close contact with the two sides of the sheet metal, thus continuously providing a stable clamping force. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the second locking mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first locking mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0022] In the diagram: 1. Mold table; 2. Connecting plate; 3. Lower mold; 4. Upper mold; 5. Second locking mechanism; 501. Second bidirectional threaded rod; 502. Second throttle; 503. Second threaded block; 504. Second horizontal plate; 503. Second three-pronged insert; 6. First locking mechanism; 601. First threaded rod; 602. First throttle; 603. First threaded block; 604. First horizontal plate; 601. First three-pronged insert; 7. Positioning assembly; 701. Positioning plate; 702. Three-pronged insert; 8. Clamping mechanism; 801. Horizontal bar; 802. Limit handle; 803. Spring; 804. Limit plate; 805. Roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figures 1-5 In this embodiment of the present invention, a detachable sheet metal mold includes: a mold platform 1, a connecting plate 2, a lower mold 3, and an upper mold 4. The connecting plate 2 has a U-shaped groove inside, and a second locking mechanism 5 is provided inside the U-shaped groove. A first locking mechanism 6 is provided between the two sides of the inner wall of the mold platform 1, and both the second locking mechanism 5 and the first locking mechanism 6 extend to one side of the mold platform 1. Positioning components 7 are provided on both sides of the lower mold 3 and the upper mold 4, and the second locking mechanism 5 and the first locking mechanism 6 are movably inserted into the four positioning components 7. Trapezoidal grooves are provided at the bottom of the connecting plate 2 and the top of the mold platform 1. Trapezoidal blocks are connected to the opposite sides of the lower mold 3 and the upper mold 4, and the two trapezoidal blocks are movably inserted into the two trapezoidal grooves respectively. A U-shaped frame is connected to the top of the mold platform 1, and clamping mechanisms 8 are provided on both sides of the U-shaped frame, and both clamping mechanisms 8 extend to the inner side of the U-shaped frame.

[0026] Specifically, by reversing the first locking mechanism 6 and the second locking mechanism 5, the four positioning components 7 can be removed, releasing the action on the lower mold 3 and the upper mold 4. At this time, the two trapezoidal blocks on the lower mold 3 and the upper mold 4 are removed from the inside of the two trapezoidal slots, thus completing the disassembly of the lower mold 3 and the upper mold 4. Conversely, by repositioning the two trapezoidal blocks on the lower mold 3 and the upper mold 4 into the inside of the two trapezoidal slots, and by re-rotating the first locking mechanism 6 and the second locking mechanism 5 in the forward direction, the four positioning components 7 can be re-locked, thus completing the installation of the lower mold 3 and the upper mold 4. Before bending the sheet metal, first pull the two clamping mechanisms 8, then place the sheet metal on top of the lower mold 3, release the two clamping mechanisms 8 to reset and clamp the two sides of the sheet metal. When the sheet metal is bent, its two ends will move towards the center. At this time, the two clamping mechanisms 8 will adaptively clamp the sheet metal according to the movement of its two ends, thus enabling the sheet metal to achieve stable bending.

[0027] Example 2:

[0028] Please see Figures 2-4 In this embodiment of the present invention, a detachable sheet metal mold includes a second locking mechanism 5 comprising a second bidirectional threaded rod 501, a second throttle 502, two second threaded blocks 503, two second horizontal plates 504, and two second three-pronged rods 505. The second bidirectional threaded rod 501 is rotatably connected between the two sides of the inner wall of the U-shaped groove, and one end of the second bidirectional threaded rod 501 extends to one side of the U-shaped frame. The second throttle 502 is connected to one end of the second bidirectional threaded rod 501. The two second threaded blocks 503 are threadedly connected to the outer surface of the second bidirectional threaded rod 501. The two second horizontal plates 504 are respectively connected to the bottom of the second threaded blocks 503. The two second three-pronged rods 505 are respectively connected to the adjacent side of the two second horizontal plates 504. The first locking mechanism 6 comprises a first threaded rod 601, a first throttle 602, two first threaded blocks 603, and two second threaded blocks 504. A first horizontal plate 604 and two first three-pronged rods 605 are provided. A first threaded rod 601 is rotatably connected between the two sides of the inner wall of the mold 1, and one end of the first threaded rod 601 extends to one side of the mold 1. A first throttle 602 is connected to one end of the first threaded rod 601. Two first threaded blocks 603 are threadedly connected to the outer surface of the first threaded rod 601, and both first threaded blocks 603 extend to the top of the mold 1. Two first horizontal plates 604 are respectively connected to the top of the two first threaded blocks 603. Two first three-pronged rods 605 are respectively connected to the adjacent side of the two first horizontal plates 604. The positioning assembly 7 includes a positioning plate 701 and three-pronged holes 702. The positioning plate 701 is connected to one side of the lower mold 3. The three-pronged holes 702 are opened on one side of the positioning plate 701, and one of the second three-pronged rods 505 is movably inserted into the interior of the three-pronged hole 702.

[0029] Specifically, rotating the first handle 602 and the second handle 502 in the opposite direction drives the first threaded rod 601 and the second bidirectional threaded rod 501 to rotate, causing the two first threaded blocks 603 and the two second threaded blocks 503 to move threadedly. This, in turn, causes the two first horizontal plates 604 and the two second horizontal plates 504 to move away from each other, allowing the two first three-pronged rods 605 and the two second three-pronged rods 505 to retract from the four three-pronged holes 702, thereby releasing the compression lock on the lower die 3 and the upper die 4. Next, pull the lower mold 3 and the upper mold 4 to make the two trapezoidal blocks slide inside the two trapezoidal slots, so that the lower mold 3 and the upper mold 4 can be removed. After replacing the two trapezoidal blocks on the lower mold 3 and the upper mold 4, align them with the two trapezoidal slots and put them in. Then, rotate the first handle 602 and the second handle 502 in the forward direction so that the two first three-pin rods 605 and the two second three-pin rods 505 are reinserted into the four three-pin holes 702, and the lower mold 3 and the upper mold 4 are locked again, thus completing the convenient replacement of the lower mold 3 and the upper mold 4.

[0030] Example 3:

[0031] Please see Figures 1-5 In this embodiment of the utility model, a detachable sheet metal mold, the clamping mechanism 8 includes a crossbar 801, a limiting handle 802, a spring 803, a limiting plate 804, and a roller 805. The crossbar 801 is slidably connected to one side of the U-shaped frame, and one end of the crossbar 801 extends to the inner side of the U-shaped frame. The limiting handle 802 is connected to the other end of the crossbar 801. The limiting plate 804 is connected to one end of the crossbar 801. The spring 803 is connected between one side of the inner wall of the U-shaped frame and one side of the limiting plate 804, and the spring 803 is located outside the crossbar 801. The roller 805 is rotatably connected to the inside of the transverse groove, and the output end of the cylinder extends to the top of the inner wall of the U-shaped frame. The output end of the cylinder is connected to the top of the connecting plate 2.

[0032] Specifically, pulling the limit lever 802 causes the crossbar 801 to slide on one side of the U-shaped frame, bringing the limit plate 804 close to the inner wall of the U-shaped frame and compressing the spring 803. After placing the sheet metal on top of the lower mold 3, the limit lever 802 is released, the spring 803 returns to its original position, and the limit plate 804 presses and clamps one side of the sheet metal. The cylinder is activated, and the upper mold 4 descends through the connecting plate 2, causing the upper mold 4 to press the sheet metal placed on top of the lower mold 3. At this time, the sheet metal is bent, and then the two ends of the sheet metal will move closer to each other. Under the action of the limit plate 804, one end of the sheet metal is limited to prevent the sheet metal from warping. At the same time, under the action of the spring 803 returning to its original position, the crossbar 801 can slide, allowing the limit plate 804 to continuously follow the movement of one end of the sheet metal, adaptively pressing and fixing it. Under the action of the roller 805, the damage caused by the movement of the sheet metal can be reduced, thus completing the bending work after fixing the sheet metal.

[0033] The working principle of this utility model is as follows: When it is necessary to disassemble the lower mold 3 and the upper mold 4, the operator first rotates the first handle 602 and the second handle 502 in the opposite direction. The first handle 602 and the second handle 502 will respectively drive the first threaded rod 601 and the second bidirectional threaded rod 501 to rotate, causing the two first threaded blocks 603 and the two second threaded blocks 503 to move threadedly. This allows the two first threaded blocks 603 and the two second threaded blocks 503 to respectively drive the two first horizontal plates 604 and the two second horizontal plates 504 to move away from each other, so that the two first threaded blocks 603 and the two second threaded blocks 503 respectively drive the two first horizontal plates 604 and the two second horizontal plates 504 to move away from each other. The first three-prong insert 605 and the two second three-prong inserts 505 are removed from the four three-prong holes 702 on the four positioning plates 701, thus releasing the compression lock on the lower mold 3 and the upper mold 4. At this time, the lower mold 3 and the upper mold 4 can be pulled, causing the two trapezoidal blocks to slide inside the two trapezoidal grooves, thereby disassembling the lower mold 3 and the upper mold 4. After replacing the two trapezoidal blocks on the lower mold 3 and the upper mold 4, align them with the two trapezoidal grooves and insert them. Then, rotate the first handle 602 and the second handle 502 clockwise to move the two first three-prong inserts 605 and the two second three-prong inserts 505. Reinsert the four three-prong plugs 702 into the interior and relock the lower mold 3 and upper mold 4 to easily replace them. Pulling the limit handle 802 causes the crossbar 801 to slide on one side of the U-shaped frame, thus moving the limit plate 804 closer to the inner wall of the U-shaped frame and compressing the spring 803. After placing the sheet metal on top of the lower mold 3, release the limit handle 802. The spring 803 will return to its original position, causing the limit plate 804 to clamp and press one side of the sheet metal. Once the sheet metal is clamped, activate the cylinder. The connecting plate 2 drives the upper mold 4 to descend, causing the upper mold 4 to press the sheet metal placed on top of the lower mold 3 and bend the sheet metal. When the sheet metal is bent, the two ends of the sheet metal will move closer to each other. Under the action of the limiting plate 804, one end of the sheet metal will be limited to prevent the sheet metal from warping. At the same time, the limiting plate 804 will follow the movement of one end of the sheet metal and adaptively press and fix it to prevent the sheet metal from moving. Under the action of the roller 805, the top of the sheet metal will generate rolling friction with the roller 805 when sliding, which can reduce the damage caused by the movement of the sheet metal.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A detachable sheet metal mold, characterized in that, include: The mold base (1), connecting plate (2), lower mold (3), and upper mold (4) are provided. A U-shaped groove is provided inside the connecting plate (2), and a second locking mechanism (5) is provided inside the U-shaped groove. A first locking mechanism (6) is provided between the two sides of the inner wall of the mold base (1), and both the second locking mechanism (5) and the first locking mechanism (6) extend to one side of the mold base (1). Positioning components (7) are provided on both sides of the lower mold (3) and the upper mold (4), and the second locking mechanism (5)... The first locking mechanism (6) and four positioning components (7) are movably connected. The bottom of the connecting plate (2) and the top of the mold table (1) are provided with trapezoidal grooves. The opposite sides of the lower mold (3) and the upper mold (4) are connected with trapezoidal blocks. The two trapezoidal blocks are movably connected to the inside of the two trapezoidal grooves. The top of the mold table (1) is connected with a U-shaped frame. The two sides of the U-shaped frame are provided with clamping mechanisms (8), and the two clamping mechanisms (8) extend to the inside of the U-shaped frame.

2. The detachable sheet metal mold according to claim 1, characterized in that, The second locking mechanism (5) includes a second bidirectional threaded rod (501), a second throttle (502), two second threaded blocks (503), two second horizontal plates (504), and two second three-pronged rods (505). The second bidirectional threaded rod (501) is rotatably connected between the two sides of the inner wall of the U-shaped groove, and one end of the second bidirectional threaded rod (501) extends to one side of the U-shaped frame. The second throttle (502) is connected to one end of the second bidirectional threaded rod (501). The two second threaded blocks (503) are threadedly connected to the outer surface of the second bidirectional threaded rod (501). The two second horizontal plates (504) are respectively connected to the bottom of the second threaded blocks (503). The two second three-pronged rods (505) are respectively connected to the adjacent side of the two second horizontal plates (504).

3. The detachable sheet metal mold according to claim 1, characterized in that, The first locking mechanism (6) includes a first threaded rod (601), a first throttle (602), two first threaded blocks (603), two first horizontal plates (604), and two first three-pronged rods (605). The first threaded rod (601) is rotatably connected between the two sides of the inner wall of the mold table (1), and one end of the first threaded rod (601) extends to one side of the mold table (1). The first throttle (602) is connected to one end of the first threaded rod (601). The two first threaded blocks (603) are threaded to the outer surface of the first threaded rod (601), and the two first threaded blocks (603) extend to the top of the mold table (1). The two first horizontal plates (604) are respectively connected to the top of the two first threaded blocks (603). The two first three-pronged rods (605) are respectively connected to the adjacent side of the two first horizontal plates (604).

4. A detachable sheet metal mold according to claim 1, characterized in that, The positioning component (7) includes a positioning plate (701) and a three-hole (702). The positioning plate (701) is connected to one side of the lower mold (3). The three-hole (702) is opened on one side of the positioning plate (701), and one of the second three-hole rods (505) is movably inserted into the interior of the three-hole (702).

5. A detachable sheet metal mold according to claim 1, characterized in that, The clamping mechanism (8) includes a crossbar (801), a limiting handle (802), a spring (803), a limiting plate (804), and a roller (805). The crossbar (801) is slidably connected to one side of the U-shaped frame, and one end of the crossbar (801) extends to the inner side of the U-shaped frame. The limiting handle (802) is connected to the other end of the crossbar (801). The limiting plate (804) is connected to one end of the crossbar (801). The spring (803) is connected between one side of the inner wall of the U-shaped frame and one side of the limiting plate (804), and the spring (803) is located outside the crossbar (801).

6. A detachable sheet metal mold according to claim 5, characterized in that, The top of the inner wall of the limiting plate (804) is provided with a horizontal groove, and the roller (805) is rotatably connected inside the horizontal groove.

7. A detachable sheet metal mold according to claim 1, characterized in that, A cylinder is connected to the top of the U-shaped frame, and the output end of the cylinder extends to the top of the inner wall of the U-shaped frame. The output end of the cylinder is connected to the top of the connecting plate (2).

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