A trapezoidal piercing die

Abstract

The application relates to the technical field of punching dies, and discloses a trapezoidal punching die, which comprises a lower die and an upper die, a plurality of female dies are arranged on the top of the lower die, and a plurality of male dies are arranged on the bottom of the upper die. The trapezoidal punching die is characterized in that a T-shaped groove and a T-shaped block are arranged, the female die and the male die can be quickly disassembled and positionally fine-adjusted, the time-consuming problem caused by traditional welding and bolt fixing can be solved, the rotary motion of a knob can be converted into the linear displacement of a sliding plate through the rotation of a threaded rod driven by a rotating rod, the mounting block can be accurately inserted into a mounting hole, bidirectional mechanical locking can be realized, the die can be prevented from being displaced due to stamping vibration, the stamping reaction force cannot reversely drive the worm through the meshing of a worm wheel and a worm, the locking state is absolutely stable, the rotation is more convenient, the knob is arranged, auxiliary tools such as wrenches are not needed, and one person can complete the installation of the die.

Description

Technical Field

[0001] This application relates to the field of punching die technology, specifically a trapezoidal punching die. Background Technology

[0002] Stamping dies are special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products). Stamping dies are a special process equipment used in cold stamping to process materials into parts. They are also called cold stamping dies or hardware dies. The principle of stamping is that stamping is a pressure processing method in which pressure is applied to the material at room temperature using a die mounted on a press, causing it to separate or plastically deform, thereby obtaining the desired part. This processing method is usually called cold stamping.

[0003] When producing complex parts, it is impossible to complete the stamping in one go, so continuous stamping dies are required. Traditional stamping dies are mostly fixed with bolts when installing the die and punch. Different dies need to be changed to produce different workpieces, which makes the disassembly and assembly of dies troublesome. The disassembly and assembly operations are difficult and the installation efficiency is low. In order to solve the above problems, a trapezoidal punching die is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a trapezoidal punching die, which has advantages such as easy disassembly, and solves the problems of difficult disassembly and assembly operations and low installation efficiency during replacement.

[0005] To achieve the above objectives, this application provides the following technical solution: a trapezoidal punching die, comprising a lower die and an upper die, wherein a plurality of concave dies are mounted and connected to the top of the lower die, and a plurality of convex dies are mounted and connected to the bottom of the upper die;

[0006] Multiple T-slots are provided at the top of the lower mold and the bottom of the upper mold. Mounting T-blocks are fixedly connected to the bottom of the concave mold and the top of the convex mold. The mounting T-blocks are slidably connected to the lower T-slot. L-shaped sliding grooves are provided on opposite sides inside the T-slot. An engagement groove is provided between the two L-shaped sliding grooves. Rotating rods are tightly nested within the engagement grooves on opposite sides via bearings. Threaded rods are fixedly connected to both ends of the rotating rods. The shaft ends of the threaded rods are rotatably connected to the inner side of the L-shaped sliding grooves. A threaded cylinder is threadedly connected to the surface of the threaded rod. A sliding plate is fixedly connected to the surface of the threaded cylinder. Mounting blocks are fixedly connected to the sides of the sliding plate. Two mounting holes are provided inside the mounting T-blocks. The sides of the mounting blocks slide through the L-shaped sliding grooves and engage within the mounting holes.

[0007] The above solution, by setting T-slots and installing T-blocks, enables quick assembly and disassembly of the die and punch, as well as fine-tuning of their positions. This solves the problem of time-consuming replacement caused by traditional welding and bolt fixing. By driving the threaded rod to rotate through the rotating rod, the rotational motion of the knob can be converted into the linear displacement of the sliding plate. This allows the mounting block to be accurately inserted into the mounting hole, enabling bidirectional mechanical locking and preventing die displacement caused by stamping vibration.

[0008] Furthermore, a worm gear is fixedly connected to the surface of the rotating rod, a transmission rod is tightly nested inside the meshing groove via a bearing, a worm is fixedly connected to the surface of the transmission rod, and the worm gear and the worm mesh with each other.

[0009] With the above solution, the meshing of the worm gear and the worm prevents the stamping reaction force from driving the worm in the opposite direction, ensuring an absolutely stable locking state. At the same time, the worm can output high locking force with a small input torque, making it more convenient to rotate.

[0010] Furthermore, one end of the transmission rod passes through the side of the meshing groove and is fixedly connected to a knob.

[0011] With the above solution, by setting a knob, the mold can be installed by a single person without the need for auxiliary tools such as wrenches.

[0012] Furthermore, a limiting roller is provided on the top of the die cavity.

[0013] The above solution uses a limiting roller to physically limit and correct the position of the sheet metal before stamping, thus eliminating the cumulative error in feeding.

[0014] Furthermore, a groove is provided on the top of the concave mold.

[0015] The above solution incorporates a groove specifically designed for trapezoidal punching profiles.

[0016] Furthermore, a plurality of contraction grooves are provided at the bottom of the groove, and a connecting spring is fixedly connected to the bottom of the contraction groove, and a top cylinder is fixedly connected to the top of the connecting spring.

[0017] The above solution, by setting a connecting spring and an ejector cylinder, allows the stamped sheet metal to be ejected from the ejector die.

[0018] Furthermore, a vertical rod is fixedly connected to the bottom of the shrinkage groove, the vertical rod is inside the connecting spring, the top cylinder is slidably connected to the surface of the vertical rod, and a limiting plate is fixedly connected to the top of the vertical rod, the limiting plate being slidably connected inside the top cylinder.

[0019] The above solution, by setting up uprights and limiting plates, can restrict the top cylinder to move only along the axial direction, thus avoiding the failure of the spring due to lateral force.

[0020] Furthermore, the top of the top cylinder and the top of the cavity are on the same horizontal plane.

[0021] By employing the above-mentioned method, and ensuring that the top of the ejector cylinder and the top of the die are on the same horizontal plane, it is possible to prevent excessive ejection from interfering with the conveying of the sheet metal.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. This trapezoidal punching die, by setting a T-slot and installing a T-block, can realize the quick assembly and disassembly of the die and the fine adjustment of their positions, solving the problem of time-consuming replacement caused by traditional welding and bolt fixing. By driving the threaded rod to rotate through the rotating rod, the rotational motion of the knob can be converted into the linear displacement of the sliding plate, which can make the mounting block accurately inserted into the mounting hole and perform bidirectional mechanical locking. It can prevent the die from shifting due to stamping vibration. Through the meshing of the worm gear and the worm, the stamping reaction force cannot drive the worm in the opposite direction, ensuring the absolute stability of the locking state. At the same time, the worm can output high locking force with a small input torque, making rotation more convenient. By setting the knob, no auxiliary tools such as wrenches are needed, and a single person can complete the installation of the die.

[0024] 2. This trapezoidal punching die, by setting a connecting spring and an ejector cylinder, can eject the stamped sheet metal out of the die cavity. By setting a vertical rod and a limiting plate, the ejector cylinder can be restricted to move only along the axial direction, avoiding the failure of the spring due to lateral force. By setting the top of the ejector cylinder and the top of the die cavity to be on the same horizontal plane, it can prevent the ejection from being too high and interfering with the conveying of the sheet metal. Attached Figure Description

[0025] Figure 1 This is a frontal three-dimensional structural diagram of this application;

[0026] Figure 2 This is a side-view perspective three-dimensional structural diagram of this application;

[0027] Figure 3 This is a schematic diagram of the mounting block in this application;

[0028] Figure 4 This is a structural schematic diagram of the meshing groove cross-section in this application;

[0029] Figure 5 for Figure 3 A schematic diagram of the structure at point A in the middle, magnified cross-section.

[0030] Figure 6 for Figure 4 Enlarged structural diagram at point B.

[0031] In the picture:

[0032] 1. Lower mold; 101. T-slot; 102. L-shaped sliding groove; 103. Engaging groove; 104. Rotating rod; 105. Threaded rod; 106. Threaded cylinder; 107. Sliding plate; 108. Mounting block; 109. Worm gear; 1010. Transmission rod; 1011. Worm; 1012. Knob;

[0033] 2. Place the mold;

[0034] 3. Die cavity; 301. Limiting roller; 302. Groove; 303. Shrinkage groove; 304. Connecting spring; 305. Ejector cylinder; 306. Upright rod; 307. Limiting plate;

[0035] 4. Punch;

[0036] 5. Install the T-block; 501. Mounting hole. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] Please see Figure 1 , Figure 3 and Figure 6 In this embodiment, a trapezoidal punching die includes a lower die 1 and an upper die 2. Multiple concave dies 3 are installed and connected to the top of the lower die 1, and multiple convex dies 4 are installed and connected to the bottom of the upper die 2.

[0039] Multiple T-slots 101 are provided on the top of the lower mold 1 and the bottom of the upper mold 2. T-blocks 5 are fixedly connected to the bottom of the concave mold 3 and the top of the convex mold 4. The T-blocks 5 are slidably connected to the lower T-slots 101. L-shaped sliding grooves 102 are provided on opposite sides inside the T-slots 101. Engaging grooves 103 are provided between the two L-shaped sliding grooves 102. Rotating rods 104 are tightly nested within the engagement grooves 103 on opposite sides via bearings. Threaded rods 105 are fixedly connected to both ends of the rotating rods 104. The shaft end is rotatably connected to the inner side of the L-shaped sliding groove 102. A threaded cylinder 106 is threadedly connected to the surface of the threaded rod 105. A sliding plate 107 is fixedly connected to the surface of the threaded cylinder 106. A mounting block 108 is fixedly connected to the side of the sliding plate 107. Two mounting holes 501 are opened inside the mounting T-block 5. The side of the mounting block 108 slides through the L-shaped sliding groove 102 and is engaged in the mounting holes 501. By setting the T-slot 101 and mounting T-block 5, the die 3 and the punch 4 can be quickly disassembled and finely adjusted in position. To solve the time-consuming replacement problem caused by traditional welding and bolt fixing, the rotating rod 104 drives the threaded rod 105 to rotate, which converts the rotational motion of the knob 1012 into the linear displacement of the sliding plate 107. This allows the mounting block 108 to be accurately inserted into the mounting hole 501, enabling bidirectional mechanical locking and preventing mold displacement caused by stamping vibration. A worm gear 109 is fixedly connected to the surface of the rotating rod 104, and a transmission rod 1010 is tightly nested inside the meshing groove 103 via bearings. The surface of the transmission rod 1010 is fixedly connected to... A worm gear 1011 is connected, and a worm wheel 109 meshes with the worm gear 1011. Through the meshing of the worm wheel 109 and the worm gear 1011, the stamping reaction force cannot drive the worm gear 1011 in the reverse direction, ensuring that the locking state is absolutely stable. At the same time, the worm gear 1011 can output high locking force with a small input torque, making it more convenient to rotate. One end of the transmission rod 1010 passes through the side of the meshing groove 103 and is fixedly connected to a knob 1012. By setting the knob 1012, the mold can be installed by a single person without the need for auxiliary tools such as wrenches.

[0040] Please see Figure 3 and Figure 5The die 3 has a limit roller 301 on its top. By setting the limit roller 301, the position is forcibly corrected through physical limiting before the sheet metal is stamped, eliminating accumulated feeding errors. The die 3 has a groove 302 on its top, specifically designed for trapezoidal punching contours. Multiple shrinkage grooves 303 are formed at the bottom of the groove 302. A connecting spring 304 is fixedly connected to the bottom of each shrinkage groove 303, and an ejector cylinder 305 is fixedly connected to the top of the connecting spring 304. By setting the connecting spring 304 and the ejector cylinder 305, the stamped sheet metal can be ejected from the die 3. A vertical rod 306 is fixedly connected to the bottom of the internal part of the 303. The vertical rod 306 is located inside the connecting spring 304. The top cylinder 305 is slidably connected to the surface of the vertical rod 306. A limiting plate 307 is fixedly connected to the top of the vertical rod 306. The limiting plate 307 is slidably connected inside the top cylinder 305. By setting the vertical rod 306 and the limiting plate 307, the movement of the top cylinder 305 can be restricted to only axial movement, avoiding the failure of the spring under lateral force. The top of the top cylinder 305 is at the same level as the top of the die 3. By making the top of the top cylinder 305 at the same level as the top of the die 3, it is possible to prevent excessive ejection that may interfere with the conveying of the sheet metal.

[0041] In this embodiment, by setting the T-slot 101 and installing the T-block 5, the die 3 and punch 4 can be quickly disassembled and finely adjusted in position, solving the problem of time-consuming replacement caused by traditional welding and bolt fixing. By rotating the rod 104 to drive the threaded rod 105 to rotate, the rotational motion of the knob 1012 can be converted into the linear displacement of the sliding plate 107, allowing the mounting block 108 to be accurately inserted into the mounting hole 501, enabling bidirectional mechanical locking and preventing die displacement caused by stamping vibration. Through the meshing of the worm gear 109 and the worm 1011, the stamping reaction force cannot drive the worm 101 in the reverse direction. 011 ensures absolute stability in the locking state. At the same time, the worm gear 1011 can output high locking force with a small input torque, making rotation more convenient. By setting the knob 1012, no auxiliary tools such as wrenches are needed, and a single person can complete the mold installation. By setting the connecting spring 304 and the ejector cylinder 305, the stamped sheet can be ejected from the die 3. By setting the upright 306 and the limiting plate 307, the ejector cylinder 305 can be restricted to move only along the axial direction, avoiding the failure of the spring under lateral force. By making the top of the ejector cylinder 305 and the top of the die 3 at the same level, it can prevent the ejection from being too high and interfering with the sheet material transportation.

[0042] The working principle of the above embodiment is as follows: In use, the mounting T-block 5 at the bottom of the concave mold 3 is slidably connected to the T-slot 101 opened at the top of the lower mold 1, and the mounting T-block 5 at the top of the punch 4 is slidably connected to the T-slot 101 opened at the bottom of the upper mold 2. After sliding, the knob 1012 is rotated to rotate the transmission rod 1010 and the worm gear 1011. Through the meshing of the worm gear 1011 and the worm wheel 109, the rotating rod 104 and the threaded rod 105 can be driven to rotate, so that the threaded cylinder 106 can move on the surface of the threaded rod 105, thereby moving the position of the sliding plate 107. One end of the mounting block 108 can be engaged in the mounting hole 501, thereby fixing the position of the mounting T-block 5 in the T-slot 101. After fixing, the device can be used.

[0043] After the sheet metal is stamped, the ejector cylinder 305 can move downward under the action of the connecting spring 304, which can eject the stamped sheet metal from the die 3. At the same time, under the action of the upright 306 and the limiting plate 307, the ejector cylinder 305 can be restricted to move only along the axial direction, so as to avoid the spring from failing due to lateral force.

[0044] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A trapezoidal punching die, comprising a lower die (1) and an upper die (2), characterized in that: The lower mold (1) has multiple concave molds (3) installed and connected to its top, and the upper mold (2) has multiple convex molds (4) installed and connected to its bottom. The lower mold (1) and the upper mold (2) are provided with multiple T-slots (101) at the top and bottom respectively. The bottom of the concave mold (3) and the top of the convex mold (4) are fixedly connected with mounting T-blocks (5). The mounting T-blocks (5) are slidably connected to the lower T-slots (101). L-shaped sliding grooves (102) are provided on opposite sides inside the T-slots (101). A meshing groove (103) is provided between two L-shaped sliding grooves (102). Rotating rods (104) are tightly nested on opposite sides inside the meshing grooves (103) through bearings. A threaded rod (105) is fixedly connected to both ends. The shaft end of the threaded rod (105) is rotatably connected to the inner side of the L-shaped sliding groove (102). A threaded cylinder (106) is threadedly connected to the surface of the threaded rod (105). A sliding plate (107) is fixedly connected to the surface of the threaded cylinder (106). An installation block (108) is fixedly connected to the side of the sliding plate (107). Two installation holes (501) are opened inside the installation T-shaped block (5). The side of the installation block (108) slides through the L-shaped sliding groove (102) and is engaged in the installation hole (501).

2. The trapezoidal punching die according to claim 1, characterized in that: A worm gear (109) is fixedly connected to the surface of the rotating rod (104), and a transmission rod (1010) is tightly nested inside the meshing groove (103) via a bearing. A worm (1011) is fixedly connected to the surface of the transmission rod (1010), and the worm gear (109) and the worm (1011) mesh with each other.

3. A trapezoidal punching die according to claim 2, characterized in that: One end of the transmission rod (1010) passes through the side of the meshing groove (103) and is fixedly connected to a knob (1012).

4. A trapezoidal punching die according to claim 1, characterized in that: The top of the die (3) is provided with a limiting roller (301).

5. A trapezoidal punching die according to claim 1, characterized in that: The top of the die (3) has a groove (302).

6. A trapezoidal punching die according to claim 5, characterized in that: The groove (302) has multiple contraction grooves (303) at its bottom. A connecting spring (304) is fixedly connected to the bottom of the contraction groove (303), and a top cylinder (305) is fixedly connected to the top of the connecting spring (304).

7. A trapezoidal punching die according to claim 6, characterized in that: A vertical rod (306) is fixedly connected to the bottom of the shrinkage groove (303). The vertical rod (306) is located inside the connecting spring (304). The top cylinder (305) is slidably connected to the surface of the vertical rod (306). A limiting plate (307) is fixedly connected to the top of the vertical rod (306). The limiting plate (307) is slidably connected inside the top cylinder (305).

8. A trapezoidal punching die according to claim 6, characterized in that: The top of the top cylinder (305) is on the same horizontal plane as the top of the die (3).

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