Metal pipe stamping die
The design of the lifting and installation mechanisms simplifies the installation and disassembly process of metal pipe stamping dies, solves the problems of die wear and low processing efficiency, and improves processing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN JINTAI HUIXING MACHINERY CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-15
AI Technical Summary
After prolonged use, the die and punch of existing metal pipe stamping dies wear down, resulting in a decline in processing quality. Furthermore, disassembling and replacing the dies is cumbersome and affects processing efficiency.
A metal pipe stamping die was designed, which adopts a lifting mechanism and an installation mechanism. The die cavity is fixed by a pressure plate and a fixed seat, and the punch is fixed by the installation mechanism. A collection box is set inside the die to collect scrap materials, which simplifies the installation and disassembly process of the die.
It enables convenient installation and disassembly of the die and punch, improves processing efficiency, reduces mold wear, and enhances processing quality.
Smart Images

Figure CN224238038U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal pipe stamping die technology, and specifically to a metal pipe stamping die. Background Technology
[0002] Metal tube stamping is a high-efficiency and precision forming process, mainly used for punching holes, cutting grooves, flanging, or partial forming on tubes. Its core process includes: first, fixing the tube on a special fixture, and then driving the punch to impact the tube wall at high speed through a punch press, so that the material undergoes plastic deformation or separation under the support of the die. For thin-walled tubes (wall thickness ≤ 3mm), chipless blanking technology is usually used, using the precise cooperation between the sharp punch and the die to achieve a clean cross-section. For thick-walled tubes, step-by-step stamping is required, and lubricant is used to reduce die wear.
[0003] In existing technologies, stamping dies are used when stamping and separating metal pipes at the pipe opening. In most dies, the die and punch are usually fixed to the template with bolts. However, the die and punch may wear down after long-term use, affecting the processing quality. They need to be disassembled for maintenance or replacement. Because of the bolt connection, auxiliary tools are required for disassembly, which is quite troublesome. If the auxiliary tools carried by the operator are not compatible with the size of the bolt, disassembly cannot be performed, and a suitable auxiliary tool needs to be found. This process will affect the processing efficiency.
[0004] Therefore, a metal tube stamping die is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a metal tube stamping die in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A metal pipe stamping die includes a lower die housing, an upper die plate, a die cavity, and a punch. A fixed post and a fixed seat are provided on the top of the lower die housing. A lifting mechanism for height adjustment is provided on the lower die housing, and a pressure plate is provided on the lifting mechanism. The die cavity is movably mounted on the fixed seat and the pressure plate. A collection box is slidably disposed inside the lower die housing. A cylinder is provided on the surface of the upper die plate, corresponding to the fixed post. A fixed frame is provided on the surface of the upper die plate, and a connecting seat is provided on the fixed frame. An installation mechanism for mounting and fixing the punch is provided on the fixed frame, and the installation mechanism is mounted on the connecting seat. The punch is mounted on the installation mechanism.
[0008] Furthermore, two positioning blocks are fixedly installed on the surface of the die, and the positioning blocks are inserted into the fixed seat and the pressure plate.
[0009] Furthermore, the lifting mechanism includes two fixed plates, which are fixedly installed inside the lower mold housing. A bidirectional screw is rotatably installed on the lower mold housing. Two sliding parts are threadedly installed on the outer wall of the bidirectional screw, and the sliding parts are slidably installed between the two fixed plates. A knob is fixedly installed on the surface of the bidirectional screw.
[0010] Furthermore, a lifting plate is slidably installed between the two fixed plates, and a double ring rod is rotatably installed on each of the two sliding members, and the double ring rod is rotatably installed on the lifting plate.
[0011] Furthermore, two cylinders are fixedly installed on the surface of the lifting plate, and the cylinders are slidably installed on the lower mold housing and the fixed base, and the cylinders are fixedly installed on the surface of the pressure plate.
[0012] Furthermore, the installation mechanism includes a bidirectional screw two, which is rotatably mounted on a fixed frame. A connecting column is fixedly mounted on the fixed frame. Two insert plates are threaded onto the outer wall of the bidirectional screw two, and the insert plates are slidably mounted on the outer wall of the connecting column. A knob two is fixedly mounted on the surface of the bidirectional screw two. A positioning plate is slidably mounted on the connecting seat, and the insert plates are slidably mounted on the connecting seat and the positioning plate. A punch is fixedly mounted on the surface of the positioning plate.
[0013] The beneficial effects of this utility model are as follows:
[0014] This utility model, through the arrangement of a pressure plate, a lifting mechanism, and an installation mechanism, allows for easy installation and removal of the die. In use, the lower die housing is fixed to the worktable, and the upper die plate is fixed to the stamping cylinder. The die is placed on a fixed base, and the lifting mechanism moves the pressure plate downwards, pressing it against the die and fixing it between the fixed base and the pressure plate. The punch is then fixed to a connecting base via the installation mechanism. After preparation, a metal pipe is fitted onto the die, and the stamping cylinder moves the punch downwards, punching a hole in the metal pipe. The punched scrap falls into a collection box for collection, facilitating easy installation and removal of the die and punch. The operation is simple and highly practical. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a structural schematic diagram of the fixing plate of this utility model;
[0017] Figure 3This is a partial structural schematic diagram of the lifting mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the insert plate of this utility model.
[0019] Reference numerals: 1. Lower mold shell; 2. Upper mold plate; 3. Fixed column; 4. Cylinder; 5. Fixed seat; 6. Pressure plate; 7. Die; 8. Lifting mechanism; 801. Fixed plate; 802. Bidirectional screw one; 803. Sliding part; 804. Lifting plate; 805. Double ring rod; 806. Knob one; 807. Cylinder; 9. Fixed frame; 10. Connecting seat; 11. Punch; 12. Mounting mechanism; 1201. Positioning plate; 1202. Bidirectional screw two; 1203. Connecting column; 1204. Insert plate; 1205. Knob two; 13. Collection box. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can be used for control.
[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] like Figure 1-2 As shown, a metal pipe stamping die includes a lower die housing 1, an upper die plate 2, a die cavity 7, and a punch 11. A fixing post 3 is provided on the top of the lower die housing 1, and a fixing seat 5 is also provided on the top of the lower die housing 1. A lifting mechanism 8 for height adjustment is provided on the lower die housing 1, and a pressure plate 6 is provided on the lifting mechanism 8. The die cavity 7 is movably mounted on the fixing seat 5 and the pressure plate 6. A collection box 13 is slidably disposed inside the lower die housing 1. A cylinder 4 is provided on the surface of the upper die plate 2, and the cylinder 4 corresponds to the fixing post 3. A fixing frame 9 is provided on the surface of the upper die plate 2, and a connecting seat 10 is provided on the fixing frame 9. An installation mechanism 12 for mounting and fixing the punch 11 is provided on the fixing frame 9, and the installation mechanism 12 is mounted on the connecting seat 10. The punch 11 is mounted on the mounting frame 9. In this embodiment, during use, the lower mold housing 1 is fixed to the workbench, and the upper mold plate 2 is fixed to the stamping cylinder. The die 7 is placed on the fixed seat 5, and then the lifting mechanism 8 drives the pressure plate 6 to move downward. The pressure plate 6 will press against the die 7, fixing it between the fixed seat 5 and the pressure plate 6, thus completing the installation and fixing of the die 7. The punch 11 is fixedly installed on the connecting seat 10 by the installation mechanism 12. After the preparation is completed, the metal pipe is put on the die 7, and the stamping cylinder drives the punch 11 to move downward, which will punch a hole in the metal pipe. The scrap material from the punching will fall into the collection box 13 for collection, thereby facilitating the installation and disassembly of the die 7 and the punch 11. The operation is simple and highly practical.
[0026] like Figure 2 As shown, two positioning blocks are fixedly installed on the surface of the die 7, and the positioning blocks are inserted into the fixed base 5 and the pressure plate 6. In this embodiment, the positioning blocks facilitate the installation and positioning of the die 7.
[0027] like Figure 1-3As shown, the lifting mechanism 8 includes two fixed plates 801, which are fixedly installed inside the lower mold housing 1. A bidirectional screw 802 is rotatably installed on the lower mold housing 1. Two sliding members 803 are threadedly installed on the outer wall of the bidirectional screw 802, and the sliding members 803 are slidably installed between the two fixed plates 801. A knob 806 is fixedly installed on the surface of the bidirectional screw 802. In this embodiment, by rotating the knob 806, the bidirectional screw 802 is driven to rotate, causing the two sliding members 803 to move closer to or further away from each other, thereby adjusting the distance between the two sliding members 803.
[0028] like Figure 3 As shown, a lifting plate 804 is slidably installed between two fixed plates 801. Two double ring rods 805 are rotatably installed on each of the two sliding members 803, and the double ring rods 805 are rotatably installed on the lifting plate 804. In this embodiment, when the two sliding members 803 move closer to each other, the two double ring rods 805 will rotate on the sliding members 803 and the lifting plate 804, pushing the lifting plate 804 to move upward. Conversely, they will drive the lifting plate 804 to move downward, thereby adjusting the height of the lifting plate 804.
[0029] like Figure 3 As shown, two cylinders 807 are fixedly installed on the surface of the lifting plate 804, and the cylinders 807 are slidably installed on the lower mold housing 1 and the fixed base 5. The cylinders 807 are fixedly installed on the surface of the pressure plate 6. In this embodiment, when the lifting plate 804 moves longitudinally, it drives the two cylinders 807 and the pressure plate 6 to move longitudinally, thereby adjusting the height of the pressure plate 6.
[0030] like Figure 1 , Figure 4 As shown, the installation mechanism 12 includes a bidirectional screw 1202, which is rotatably mounted on a fixed frame 9. A connecting post 1203 is fixedly mounted on the fixed frame 9. Two insert plates 1204 are threadedly mounted on the outer wall of the bidirectional screw 1202, and the insert plates 1204 are slidably mounted on the outer wall of the connecting post 1203. A knob 1205 is fixedly mounted on the surface of the bidirectional screw 1202. A positioning plate 1201 is slidably mounted on the connecting seat 10, and the insert plates 1204 are slidably mounted on the connecting seat 10 and the positioning plate 1201. A punch 11 is fixedly mounted on the surface of the positioning plate 1201. In this embodiment, by inserting the positioning plate 1201 into the connecting seat 10 and then rotating the knob 1205, the bidirectional screw 1202 is rotated, causing the two insert plates 1204 to move closer to each other and insert into the positioning plate 1201 for fixation, and the punch 11 is fixed accordingly.
[0031] In summary, during use, the lower die housing 1 is fixed to the worktable, and the upper die plate 2 is fixed to the stamping cylinder. The die 7 is placed on the fixed seat 5, and then the lifting mechanism 8 moves the pressure plate 6 downwards, pressing it against the die 7 and fixing it between the fixed seat 5 and the pressure plate 6. This completes the installation and fixing of the die 7. The punch 11 is fixed to the connecting seat 10 via the mounting mechanism 12. After preparation, the metal pipe is fitted onto the die 7, and the stamping cylinder moves the punch 11 downwards, punching a hole in the metal pipe. The punched scrap falls into the collection box 13 for collection, facilitating the installation and disassembly of the die 7 and punch 11. The operation is simple and highly practical. The positioning block facilitates the installation and positioning of the die 7. The die 7 can be positioned by rotating knob 806. The rotation of the bidirectional screw 802 causes the two sliding parts 803 to move closer or further apart, thereby adjusting the distance between the two sliding parts 803. When the two sliding parts 803 move closer together, the two double-ring rods 805 rotate on the sliding parts 803 and the lifting plate 804, pushing the lifting plate 804 upward. Conversely, they drive the lifting plate 804 downward, thereby adjusting the height of the lifting plate 804. When the lifting plate 804 moves longitudinally, it drives the two cylinders 807 and the pressure plate 6 to move longitudinally, thereby adjusting the height of the pressure plate 6. By inserting the positioning plate 1201 into the connecting seat 10, and then rotating the knob 1205, the bidirectional screw 1202 is rotated, causing the two insert plates 1204 to move closer together and insert into the positioning plate 1201 for fixation, and the punch 11 is fixed accordingly.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A metal pipe stamping die, comprising a lower die housing (1), an upper die plate (2), a die cavity (7), and a punch (11), characterized in that, The lower mold housing (1) is provided with a fixed column (3) at the top and a fixed seat (5) at the top. The lower mold housing (1) is provided with a lifting mechanism (8) for height adjustment. The lifting mechanism (8) is provided with a pressure plate (6). The die (7) is movably disposed on the fixed seat (5) and the pressure plate (6). The lower mold housing (1) is provided with a collection box (13) inside. The upper template (2) is provided with a cylinder (4) on its surface, and the cylinder (4) corresponds to the fixed column (3). The upper template (2) is provided with a fixed frame (9) on its surface. The fixed frame (9) is provided with a connecting seat (10). The fixed frame (9) is provided with an installation mechanism (12) for installing and fixing the punch (11). The installation mechanism (12) is disposed on the connecting seat (10), and the punch (11) is disposed on the installation mechanism (12).
2. The metal tube stamping die according to claim 1, characterized in that, Two positioning blocks are fixedly installed on the surface of the die (7), and the positioning blocks are inserted into the fixed seat (5) and the pressure plate (6).
3. The metal tube stamping die according to claim 1, characterized in that, The lifting mechanism (8) includes two fixed plates (801), which are fixedly installed inside the lower mold housing (1). A bidirectional screw (802) is rotatably installed on the lower mold housing (1). Two sliding parts (803) are threadedly installed on the outer wall of the bidirectional screw (802), and the sliding parts (803) are slidably installed between the two fixed plates (801). A knob (806) is fixedly installed on the surface of the bidirectional screw (802).
4. A metal tube stamping die according to claim 3, characterized in that, A lifting plate (804) is slidably installed between the two fixed plates (801), and a double ring rod (805) is rotatably installed on each of the two sliding members (803), and the double ring rod (805) is rotatably installed on the lifting plate (804).
5. A metal tube stamping die according to claim 4, characterized in that, Two cylinders (807) are fixedly installed on the surface of the lifting plate (804), and the cylinders (807) are slidably installed on the lower mold housing (1) and the fixed seat (5). The cylinders (807) are fixedly installed on the surface of the pressure plate (6).
6. A metal tube stamping die according to claim 1, characterized in that, The installation mechanism (12) includes a bidirectional screw two (1202), which is rotatably mounted on a fixed frame (9). A connecting column (1203) is fixedly mounted on the fixed frame (9). Two insert plates (1204) are threadedly mounted on the outer wall of the bidirectional screw two (1202), and the insert plates (1204) are slidably mounted on the outer wall of the connecting column (1203). A knob two (1205) is fixedly mounted on the surface of the bidirectional screw two (1202). A positioning plate (1201) is slidably mounted on the connecting seat (10), and the insert plates (1204) are slidably mounted on the connecting seat (10) and the positioning plate (1201). A punch (11) is fixedly mounted on the surface of the positioning plate (1201).