Multi-station clamp for magnetic core processing
By designing a multi-station fixture and utilizing a fixed base, base plate, and electric push rod structure, continuous grinding of EE16 magnetic cores was achieved, solving the problem of low core processing efficiency in existing technologies and improving the continuity and efficiency of grinding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGXIANG YUTONG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-07-03
AI Technical Summary
Existing magnetic core machining fixtures require repeated disassembly and assembly after grinding a single magnetic core, resulting in low work efficiency and an inability to achieve continuous processing.
Design a multi-station fixture that adopts a structure of fixed base, base plate and electric push rod. The base plate is provided with positioning groove and fixing parts. The electric push rod pushes the base plate and fixing screw to cooperate, so as to realize the simultaneous fixing and sequential grinding of multiple magnetic cores.
It enables the continuous grinding process of magnetic cores, saves time and effort, improves work efficiency, and avoids the repeated disassembly and assembly of magnetic cores.
Smart Images

Figure CN224445591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic core processing technology, and more specifically, it relates to a multi-station fixture for magnetic core processing. Background Technology
[0002] Magnetic cores are a common component in the electronics field, serving to store and transmit energy. In a magnetic core, energy is typically stored and transmitted in the form of a magnetic field. The EE16 magnetic core is a common type of magnetic core, widely used in power supplies, transformers, and inductors. It has a small size and weight, making it suitable for applications in integrated circuits and small electronic devices. At the same time, the EE16 magnetic core has high saturation magnetic induction and low hysteresis loss, enabling efficient energy transmission and conversion.
[0003] During the production of EE16 magnetic cores, grinding equipment is needed to grind the ends of the central column of the EE16 magnetic core. At this time, a jig is required to hold and fix the magnetic core so that the grinding part of the grinding equipment can grind it. However, in the existing technology, the jig used to hold and fix the magnetic core needs to be removed from the jig after grinding one magnetic core and then installed and fixed for the next magnetic core to be ground. Repeatedly removing and installing the magnetic core is time-consuming and labor-intensive, reduces the continuity of grinding, and has low work efficiency. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-station fixture for magnetic core processing.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A multi-station fixture for magnetic core processing includes a fixed base, a base plate, and an electric push rod. The fixed base has a fixed cavity, the base plate is movably connected to the fixed cavity, and the output end of the electric push rod is connected to the base plate. The electric push rod is connected to one end of the fixed base. The base plate has several positioning slots, and several EE16 magnetic cores are respectively placed in the several positioning slots. The base plate is provided with a fixing component for fixing several EE16 magnetic cores.
[0007] Further configured, the fixing component includes a pressure plate, a fixing plate, and a fixing screw. A positioning groove is provided on the base plate. The fixing plate and the base plate are fixedly connected in an L-shape. The pressure plate and the fixing plate are arranged opposite to each other and the pressure plate is movably connected to the base plate. The EE16 magnetic core is placed in the positioning groove and between the pressure plate and the fixing plate. The output end of the electric push rod is connected to the base plate and the electric push rod is fixed at one end of the fixing seat. The pressure plate, the fixing plate, and the base plate move within the fixing chamber. A threaded hole is opened on the inner wall of the fixing chamber for threaded connection with the fixing screw. The fixing screw passes through the threaded hole and is movably connected to the pressure plate, and the pressure plate abuts against the fixing screw.
[0008] Further configured, the pressure plate has a guide groove corresponding to the fixed screw and a sliding groove corresponding to the base plate. The fixed screw has a movable groove, and a ball is movably connected in the movable groove. The ball is engaged in the movable groove and extends out of the movable groove. The ball rolls in the guide groove. The base plate has a sliding protrusion that is slidably connected to the sliding groove.
[0009] A further configuration is provided, wherein a slider is connected to the base plate, and a limiting groove is provided on the inner wall of the fixed cavity to slide and connect with the slider.
[0010] A further configuration is provided, wherein a drainage hole is provided on the inner wall of the bottom of the positioning groove, and a drain hole corresponding to the drainage hole is provided on the fixing seat.
[0011] By adopting the above technical solution, the beneficial effects of this utility model are as follows: after grinding a magnetic core, it is not necessary to remove it from the fixture and then install and fix the next magnetic core to be ground. Multiple magnetic cores to be ground can be fixed at one time. Under the action of the electric push rod, the base plate is pushed so that the multiple magnetic cores to be ground fixed on the base plate correspond to the grinding part of the grinding equipment in sequence. There is no need to repeatedly disassemble and assemble the magnetic cores, which saves time and effort, improves the continuity of grinding, and has high work efficiency. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0013] Figure 2 A schematic diagram of the structure of the pressure plate and the fixing plate.
[0014] Figure 3 This is a schematic diagram of the structure in which the slider protrusion and the groove cooperate.
[0015] In the diagram: 1. Fixed base; 2. Base plate; 3. Electric push rod; 4. Fixed chamber; 5. Positioning groove; 100. Fixing component; 6. Pressure plate; 7. Fixing plate; 8. Fixed screw; 9. Threaded hole; 10. Guide groove; 11. Slide groove; 12. Movable groove; 13. Ball bearing; 14. Sliding protrusion; 15. Sliding block; 16. Limiting groove; 17. Drain hole; 18. Drain hole. Detailed Implementation
[0016] Reference Figures 1 to 3 The embodiments of this utility model will be further described below.
[0017] A multi-station fixture for magnetic core processing includes a fixed base 1, a base plate 2, and an electric push rod 3. The fixed base 1 has a fixed chamber 4, and the base plate 2 is movably connected within the fixed chamber 4. The output end of the electric push rod 3 is connected to the base plate 2, and the electric push rod 3 is fixed to one end of the fixed base 1. The base plate 2 has several positioning slots 5, and several EE16 magnetic cores are respectively placed in the positioning slots 5. The base plate 2 is provided with fixing components for fixing the several EE16 magnetic cores, including a pressure plate 6, a fixing plate 7, and a fixing screw 8. The positioning slots 5 are provided with... On the base plate 2, the fixing plate 7 is fixedly connected to the base plate 2 in an L-shape. The pressure plate 6 is set opposite to the fixing plate 7 and is movably connected to the base plate 2. The EE16 magnetic core is placed in the positioning groove 5 and between the pressure plate 6 and the fixing plate 7. The output end of the electric push rod 3 is connected to the base plate 2. The pressure plate 6, the fixing plate 7 and the base plate 2 move in the fixed chamber 4. The inner wall of the fixed chamber 4 has a threaded hole 9 that is threadedly connected to the fixing screw 8. The fixing screw 8 passes through the threaded hole 9 and is movably connected to the pressure plate 6, and the pressure plate 6 abuts against the fixing screw 8.
[0018] In use: Place several EE16 magnetic cores into the corresponding positioning slots 5 on the base plate 2, and align the end of the central column of each magnetic core with the grinding part of the grinding equipment. At this time, one end of the EE16 magnetic core is in contact with the fixing plate 7. Rotate the fixing screw 8 so that the end of the fixing screw 8 abuts against the pressure plate 6. The pressure plate 6 moves on the base plate 2, so that when the fixing screw 8 is rotated, the fixing screw 8 pushes the pressure plate 6 closer to the fixing plate 7 until the pressure plate 6 abuts against the other end of the EE16 magnetic core. At this time, one end of the EE16 magnetic core abuts against the fixing plate 7. Thus, the fixing plate 7 and the pressure plate 6 fix several EE16 magnetic cores on the base plate 2, achieving the purpose of fixing multiple EE16 magnetic cores at one time.
[0019] When the grinding section of the grinding equipment finishes grinding an EE16 magnetic core, the electric push rod 3 pushes the base plate 2 to move within the fixed chamber 4. This, combined with the movable connection between the fixing screw 8 and the pressure plate 6, and the movement of the pressure plate 6, fixing plate 7, and base plate 2 within the fixed chamber 4, allows the base plate 2, fixing plate 7, and pressure plate 6 to move smoothly under the action of the electric push rod 3. This aligns the next EE16 magnetic core to be ground on the base plate 2 with the grinding section of the grinding equipment, facilitating grinding. Repeating this operation completes the sequential grinding of multiple EE16 magnetic cores. Ultimately, after grinding one core, it is not necessary to remove it from the fixture and then install and fix the next core to be ground. Multiple cores can be fixed at once. The electric push rod 3 pushes the base plate 2, causing the multiple cores fixed on the base plate 2 to sequentially align with the grinding section of the grinding equipment. This eliminates the need for repeated core removal and installation, saving time and effort, improving grinding continuity, and increasing work efficiency.
[0020] The pressure plate 6 has a guide groove 10 corresponding to the fixing screw 8 and a sliding groove 11 corresponding to the base plate 2. The end of the fixing screw 8 has a movable groove 12. A ball 13 is movably connected in the movable groove 12. The ball 13 is engaged in the movable groove 12 and extends out of the movable groove 12. The ball 13 rolls in the guide groove 10. The base plate 2 has a sliding protrusion 14 that is slidably connected to the sliding groove 11.
[0021] Rotate the fixing screw 8 so that the ball 13 at the end of the fixing screw 8 abuts against the inner wall of the guide groove 10 on the pressure plate 6, thereby pushing the pressure plate 6 closer to the fixing plate 7 and abutting against the other end of the EE16 magnetic core, thereby achieving the cooperation between the pressure plate 6 and the fixing plate 7 to fix the EE16 magnetic core on the base plate 2.
[0022] When the fixed screw 8 pushes the pressure plate 6, the sliding protrusion 14 on the base plate 2 and the sliding groove 11 on the pressure plate 6 are slidably connected to each other, so that the pressure plate 6 can move smoothly towards the fixed plate 7 to fix the EE16 magnetic core. The sliding protrusion 14 and the sliding groove 11 are slidably connected to prevent the pressure plate 6 from tilting during the movement towards the fixed plate 7, which would affect the fixing effect on the EE16 magnetic core. The ball bearing 13 is movably connected in the movable groove 12. When the electric push rod 3 pushes the base plate 2 to move in the fixed chamber 4, the ball bearing 13 rolls in the guide groove 10, so as to realize the movable connection between the pressure plate 6 and the fixed screw 8, so that the pressure plate 6 can move smoothly with the base plate 2.
[0023] A slider 15 is fixedly connected to the base plate 2. A limiting groove 16 that is slidably connected to the slider 15 is provided on the inner wall of the fixed chamber 4, so as to realize the movement of the base plate 2 in the fixed chamber 4 and facilitate the smooth movement of the base plate 2 when the electric push rod 3 is working.
[0024] A drainage hole 17 is provided on the inner wall of the bottom of the positioning groove 5, and a drain hole 18 corresponding to the drainage hole 17 is provided on the fixed base 1. This allows the cleaning water used by the grinding part of the grinding equipment to flow smoothly out of the positioning groove 5 when grinding the EE16 magnetic core. This prevents the grinding powder in the cleaning water from accumulating in the positioning groove 5 and making it difficult to clean. The grinding powder accumulated in the positioning groove 5 will cause the bottom of the EE16 magnetic core to be uneven when it is put into the positioning groove 5 next time, which will affect the processing accuracy of the EE16 magnetic core.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-station fixture for magnetic core machining, characterized in that, It includes a fixed base (1), a base plate (2) and an electric push rod (3). The fixed base (1) has a fixed chamber (4). The base plate (2) is movably connected in the fixed chamber (4). The output end of the electric push rod (3) is connected to the base plate (2). The electric push rod (3) is connected to one end of the fixed base (1). The base plate (2) has several positioning slots (5). Several EE16 magnetic cores are placed in several positioning slots (5). The base plate (2) is provided with a fixing component for fixing several EE16 magnetic cores.
2. The multi-station fixture for magnetic core processing according to claim 1, wherein The fixing components include a pressure plate (6), a fixing plate (7), and a fixing screw (8). The positioning groove (5) is set on the base plate (2). The fixing plate (7) is fixedly connected to the base plate (2) in an L-shape. The pressure plate (6) is set opposite to the fixing plate (7) and is movably connected to the base plate (2). The EE16 magnetic core is placed in the positioning groove (5) and between the pressure plate (6) and the fixing plate (7). The output end of the electric push rod (3) is connected to the base plate (2). The electric push rod (3) is fixed at one end of the fixing seat (1). The pressure plate (6), the fixing plate (7), and the base plate (2) move in the fixing chamber (4). The inner wall of the fixing chamber (4) has a threaded hole (9) that is threadedly connected to the fixing screw (8). The fixing screw (8) passes through the threaded hole (9) and is movably connected to the pressure plate (6). The pressure plate (6) abuts against the fixing screw (8).
3. The multi-station fixture for magnetic core processing according to claim 2, wherein The pressure plate (6) has a guide groove (10) corresponding to the fixed screw (8) and a sliding groove (11) corresponding to the base plate (2). The fixed screw (8) has a movable groove (12). A ball (13) is movably connected in the movable groove (12). The ball (13) is engaged in the movable groove (12) and extends out of the movable groove (12). The ball (13) rolls in the guide groove (10). The base plate (2) has a sliding protrusion (14) that is slidably connected to the sliding groove (11).
4. The multi-station fixture for magnetic core processing according to claim 3, wherein A slider (15) is connected to the base plate (2), and a limiting groove (16) is provided on the inner wall of the fixed chamber (4) to slide and connect with the slider (15).
5. The multi-station fixture for magnetic core processing according to claim 4, wherein The positioning groove (5) has a drainage hole (17) on its bottom inner wall, and the fixing seat (1) has a water leakage hole (18) corresponding to the drainage hole (17).