A die quick change device for an electric punch press
By setting up an installation and disassembly mechanism on the electric punch press, and utilizing elastic components and gear slant structure, the mold can be quickly changed, which solves the problem of low efficiency under the traditional bolt fastening method and improves production efficiency and mold life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI TONGLI ELECTRICIAN EQUIP FACTORY
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-14
AI Technical Summary
The installation and disassembly of existing electric punch press dies require a lot of time and effort to tighten or loosen bolts, resulting in low production efficiency, long equipment downtime, and easy wear or damage to fasteners such as bolts, affecting the installation accuracy and service life of the dies.
The system employs an installation and disassembly mechanism. The installation column of the mold is inserted into the installation block and the elastic component is engaged in the slot. Combined with the rotating gear and inclined groove structure, the mold can be quickly installed and disassembled, avoiding the traditional bolt fastening method.
It enables quick and convenient installation and disassembly of molds, improves production efficiency, reduces labor intensity and equipment downtime, and extends the service life of molds.
Smart Images

Figure CN224487414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric punch press technology, and in particular to a quick mold changing device for an electric punch press. Background Technology
[0002] An electric punch press is a stamping device driven by electricity. It converts electrical energy into mechanical energy through a servo motor or other types of motor, and precisely controls the movement of the slide to perform stamping, shearing, and forming processes on metal sheets or other materials. Compared to traditional mechanical punch presses, electric punch presses offer higher precision, faster speeds, lower noise, and greater energy efficiency. They also allow for precise control of the stamping process, improving production efficiency and product quality, and are widely used in the automotive, electronics, electrical appliance, and hardware manufacturing industries.
[0003] In existing electric punch press dies, bolts and other fasteners are commonly used for fixing during installation and disassembly. While this traditional method ensures the stability of the die to some extent, it suffers from significant inefficiency. During disassembly and assembly, operators need to spend a lot of time and effort tightening or loosening bolts, which not only prolongs equipment downtime and increases production costs, but also may cause wear or damage to bolts and other fasteners due to frequent disassembly and assembly operations, thereby affecting the installation accuracy and service life of the die. Utility Model Content
[0004] One objective of this invention is to provide a quick mold changing device for an electric punch press. This invention addresses the problem mentioned in the background that during disassembly and assembly operations, operators need to spend a lot of time and effort tightening or loosening bolts, which not only prolongs equipment downtime and increases production costs, but may also cause wear or damage to bolts and other fasteners due to frequent disassembly and assembly operations, thereby affecting the installation accuracy and service life of the mold.
[0005] A quick mold changing device for an electric punch press according to an embodiment of the present invention includes a punch press body, a mold mechanism, an installation mechanism, and a disassembly mechanism. The punch press body includes a frame and a base, with the frame fixedly connected to the upper part of the base. The mold mechanism includes a mold body and a locking block. An installation column is fixedly connected to the upper surface of the mold body, and the locking block is movably connected to the side surface of the installation column. The installation mechanism includes an installation block and a slot, with the slot formed on the surface of the installation block. The disassembly mechanism includes a rotating disk, a fixed disk, and a top block. The fixed disk is fixedly connected to the inner upper surface of the frame, the rotating disk is rotatably connected to the upper surface of the fixed disk, a sliding plate is slidably connected to the lower surface of the fixed disk, and the top block is fixedly connected to the lower surface of the sliding plate.
[0006] Preferably, a processing table is fixedly connected to the upper surface of the base, and a control box is fixedly connected to the side surface of the base.
[0007] Preferably, a support column is fixedly connected between the upper surface of the processing table and the upper inner part of the frame, a hydraulic cylinder is installed on the upper surface of the frame, and the mounting block is drivenly connected to the telescopic end of the hydraulic cylinder.
[0008] Preferably, the locking block is movably connected to the side surface of the mounting post via an elastic component.
[0009] Preferably, the surface of the rotating disk is provided with four sets of inclined grooves, and a sliding rod is movably connected inside the inclined grooves.
[0010] Preferably, the slide bar is fixedly connected to the upper surface of the slide plate, and both the slide plate and the top block are provided with four sets, the positions of the four sets of top blocks corresponding to the positions of the slots.
[0011] Preferably, a toothed block is fixedly connected to the side surface of the rotating disk.
[0012] Preferably, a drive gear is rotatably connected to the inner upper surface of the frame, and the drive gear meshes with the rotating disk through a toothed block.
[0013] The beneficial effects of this utility model are:
[0014] This invention, through its installation and disassembly mechanisms, allows for quick and convenient mold installation and disassembly. During installation, the mold's mounting post is inserted into the mounting block until it reaches its innermost position. Then, the locking block is ejected by an elastic component and locked into a slot, thus completing the mold installation. During disassembly, the drive gear rotates, driving a rotating disk via a toothed block. The rotating disk's rotation, combined with the limiting effect of the inclined groove, causes the sliding rod to slide inward within the groove, which in turn drives the sliding plate to slide inward on the surface of the fixed disk. This ultimately drives the top block to slide inward. The four sets of top blocks on the four sides slide inward simultaneously, pressing the locking block inward. Once the locking force of the locking block is released, the mold body can be directly removed from the mounting block, completing the disassembly. This achieves quick and convenient mold installation and disassembly, avoiding traditional bolt fastening methods, improving production efficiency, reducing labor intensity, and minimizing equipment downtime. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the structure of a quick mold changing device for an electric punch press proposed in this utility model;
[0017] Figure 2 This is a three-dimensional schematic diagram from another angle of the quick mold changing device for an electric punch press proposed in this utility model.
[0018] Figure 3 This is a three-dimensional schematic diagram of the mold mechanism in a quick mold changing device for an electric punch press proposed in this utility model.
[0019] Figure 4 This is a three-dimensional schematic diagram of the mounting mechanism and disassembly mechanism in a quick mold changing device for an electric punch press proposed in this utility model.
[0020] Figure 5 This is a three-dimensional schematic diagram of the disassembly mechanism in a quick mold changing device for an electric punch press according to the present invention.
[0021] In the diagram: 1. Punch press body; 11. Base; 12. Control box; 13. Machining table; 14. Frame; 15. Support column; 16. Hydraulic cylinder; 2. Mold mechanism; 21. Mold body; 22. Mounting column; 23. Clamping block; 3. Mounting mechanism; 31. Mounting block; 32. Slot; 4. Disassembly mechanism; 41. Drive gear; 42. Rotary disc; 43. Gear block; 44. Inclined groove; 45. Slide rod; 46. Fixed disc; 47. Slide plate; 48. Top block. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0023] refer to Figure 1-5A quick-change die for an electric punch press includes a punch press body 1, a die mechanism 2, an installation mechanism 3, and a disassembly mechanism 4. The punch press body 1 includes a frame 14 and a base 11, with the frame 14 fixedly connected to the upper part of the base 11. The die mechanism 2 includes a die body 21 and a locking block 23. A mounting post 22 is fixedly connected to the upper surface of the die body 21, and the locking block 23 is movably connected to the side surface of the mounting post 22. The installation mechanism 3 includes an installation block 31 and a slot 32, with the slot 32 formed on the surface of the installation block 31. The disassembly mechanism 4 includes a rotating disk 42, a fixed disk 46, and a top block 48. The fixed disk 46 is fixedly connected to the inner upper surface of the frame 14, the rotating disk 42 is rotatably connected to the upper surface of the fixed disk 46, a sliding plate 47 is slidably connected to the lower surface of the fixed disk 46, and the top block 48 is fixedly connected to the lower surface of the sliding plate 47. Through the installation mechanism 3 and the disassembly mechanism 4, when installing the die for the electric punch press, the quick-change die can be quickly changed. The mounting post 22 of the mold is inserted into the mounting block 31 until it reaches its innermost end. Then, the locking block 23 is ejected by the elastic component and locked in the slot 32, thus realizing the installation of the mold. During disassembly, the drive gear 41 is rotated, and the drive gear 41 drives the rotating disk 42 to rotate through the tooth block 43. When the rotating disk 42 rotates, the sliding rod 45 slides inward inside the inclined groove 44 due to the limiting effect of the inclined groove 44. This causes the sliding plate 47 to slide inward on the surface of the fixed disk 46, and finally causes the top block 48 to slide inward. The four sets of top blocks 48 on the four sides slide inward simultaneously, pressing the locking block 23 inward. After the locking force of the locking block 23 is lost, the mold body 21 can be directly removed downward from the inside of the mounting block 31 to complete the disassembly. This realizes the quick and convenient installation and disassembly of the mold, avoids the traditional bolt fastening method, improves production efficiency, reduces labor intensity, and reduces equipment downtime.
[0024] Example 1: A processing table 13 is fixedly connected to the upper surface of the base 11, and a control box 12 is fixedly connected to the side surface of the base 11. A support column 15 is fixedly connected between the upper surface of the processing table 13 and the upper inner part of the frame 14. A hydraulic cylinder 16 is installed on the upper surface of the frame 14. The mounting block 31 is drivenly connected to the telescopic end of the hydraulic cylinder 16, and the locking block 23 is movably connected to the side surface of the mounting column 22 through an elastic component.
[0025] Example 2: Four sets of inclined grooves 44 are opened through the surface of the rotating disk 42. The inside of the inclined grooves 44 is movably connected to the slide rod 45. The slide rod 45 is fixedly connected to the upper surface of the slide plate 47. The slide plate 47 and the top block 48 are both provided with four sets. The positions of the four sets of top blocks 48 correspond to the positions of the slots 32. The side surface of the rotating disk 42 is fixedly connected to the toothed block 43. The inner upper surface of the frame 14 is rotatably connected to the drive gear 41. The drive gear 41 meshes with the rotating disk 42 through the toothed block 43.
[0026] In use, firstly, during mold installation, place the mold body 21 of the mold mechanism 2 on the processing table 13 of the punch press body 1, aligning the mounting post 22 on the upper surface of the mold body 21 with the interior of the mounting block 31 of the mounting mechanism 3. Activate the hydraulic cylinder 16 to move the mounting block 31 downwards until the mounting post 22 of the mold is fully inserted into the innermost part of the mounting block 31. At this time, the locking block 23 installed on the side surface of the mounting post 22 is ejected by the elastic component and precisely locked inside the slot 32 on the surface of the mounting block 31, thus achieving a stable mold installation. When mold disassembly is required, first activate the hydraulic cylinder 16, causing its extension end to move the mounting block 31 upwards to its highest position, ensuring that the slot 32 corresponds to the position of the top block 48 of the disassembly mechanism 4. Then, manually rotate the drive gear 41. The drive gear 41, through the toothed blocks 43 fixed on its side surface, meshes with the toothed blocks 43 on the surface of the rotating disk 42, thereby driving the rotating disk 42 to rotate. During rotation, the four sets of inclined grooves 44, which are cut through the surface of the rotating disk 42, cause the sliding rod 45 inside the inclined grooves 44 to slide inward due to the limiting effect of the inclined grooves 44. Since the sliding rod 45 is fixedly connected to the upper surface of the slide plate 47, the inward sliding of the sliding rod 45 causes the slide plate 47 to slide inward on the lower surface of the fixed disk 46. The top block 48 fixedly connected to the lower surface of the slide plate 47 slides inward accordingly. The positions of the four sets of top blocks 48 correspond to the positions of the slots 32. Therefore, the four sets of top blocks 48 slide inward synchronously, pressing the locking block 23 inward. When the locking block 23 loses its locking force on the mounting post 22, the mold body 21 can be directly removed downward from the inside of the mounting block 31, completing the mold disassembly. Through the above-mentioned installation and disassembly mechanism 4, the electric punch press mold can be installed and disassembled quickly and conveniently, avoiding the low efficiency of the traditional bolt fastening method, significantly improving production efficiency, reducing labor intensity, and reducing equipment downtime. Throughout the process, the hydraulic cylinder 16, drive gear 41, tooth block 43, rotating disk 42, inclined groove 44, slide bar 45, slide plate 47 and top block 48 cooperate with each other to achieve rapid mold replacement.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A quick die changing device for an electric punch press, characterized in that, The assembly includes a punch press body (1), a die mechanism (2), an installation mechanism (3), and a disassembly mechanism (4). The punch press body (1) includes a frame (14) and a base (11), with the frame (14) fixedly connected to the upper part of the base (11). The die mechanism (2) includes a die body (21) and a locking block (23). A mounting post (22) is fixedly connected to the upper surface of the die body (21), and the locking block (23) is movably connected to the side surface of the mounting post (22). The installation mechanism (3) includes... The mounting block (31) and the slot (32) are provided on the surface of the mounting block (31). The disassembly mechanism (4) includes a rotating disk (42), a fixed disk (46) and a top block (48). The fixed disk (46) is fixedly connected to the inner upper surface of the frame (14). The rotating disk (42) is rotatably connected to the upper surface of the fixed disk (46). A sliding plate (47) is slidably connected to the lower surface of the fixed disk (46). The top block (48) is fixedly connected to the lower surface of the sliding plate (47).
2. The quick die changing device for an electric punch press according to claim 1, characterized in that, A processing table (13) is fixedly connected to the upper surface of the base (11), and a control box (12) is fixedly connected to the side surface of the base (11).
3. The quick die changing device for an electric punch press according to claim 2, characterized in that, A support column (15) is fixedly connected between the upper surface of the processing table (13) and the upper inner part of the frame (14). A hydraulic cylinder (16) is installed on the upper surface of the frame (14). The mounting block (31) is drivenly connected to the telescopic end of the hydraulic cylinder (16).
4. The quick die changing device for an electric punch press according to claim 1, characterized in that, The card block (23) is movably connected to the side surface of the mounting post (22) via an elastic component.
5. The quick die changing device for an electric punch press according to claim 1, characterized in that, The surface of the rotating disk (42) is provided with four sets of inclined grooves (44), and a sliding rod (45) is movably connected inside the inclined grooves (44).
6. The quick die changing device for an electric punch press according to claim 5, characterized in that, The slide bar (45) is fixedly connected to the upper surface of the slide plate (47). The slide plate (47) and the top block (48) are provided with four sets, and the positions of the four sets of top blocks (48) correspond to the positions of the slots (32).
7. The quick die changing device for an electric punch press according to claim 1, characterized in that, The side surface of the rotating disk (42) is fixedly connected with a toothed block (43).
8. The quick die changing device for an electric punch press according to claim 1, characterized in that, The upper inner surface of the frame (14) is rotatably connected to a drive gear (41), which meshes with the rotating disk (42) through a tooth block (43).