Magnetic core framework clamping jig
By designing a magnetic core skeleton clamping fixture, and utilizing components such as movable levers and limiting structures, the problem that existing clamping fixtures cannot adapt to multi-specification coil skeletons and iron cores has been solved, achieving stable clamping and efficient production.
Patent Information
- Application Number
- CN202423032607.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing clamping fixtures cannot simultaneously clamp coil frames and iron cores of multiple specifications and sizes, resulting in low production efficiency, high operational difficulty, and unstable product quality.
A magnetic core skeleton clamping fixture was designed. Through the combination of movable levers, movable blocks, limiting structures and supporting structures, the coil skeleton and iron core can be fixed at the same time. The fixture can be adapted to coil skeletons and iron cores of different specifications and sizes by using the cooperation of limiting grooves and springs.
It enables stable clamping of coil frames and cores of various specifications and sizes, simplifies the operation process, improves production efficiency and product quality, and reduces the frequency and cost of changing fixtures.
Smart Images
Figure CN223749508U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of clamping fixture, especially a magnetic core framework clamping fixture. BACKGROUND
[0002] Clamping fixture is a kind of tool for fixing and supporting workpiece, is widely used in machining, assembly, welding, testing and various production processes.In the industrial manufacturing process, the main role of clamping fixture is to ensure that workpiece keeps stable position in the machining or assembly process, so as to guarantee machining accuracy, improve production efficiency and reduce human operation error.
[0003] However, in the assembly process of coil framework and iron core, the existing clamping fixture can only clamp single specification coil framework and iron core mostly, and cannot operate and clamp coil framework and iron core simultaneously, and cannot meet the adaptation requirements of multiple specifications and multiple sizes.Therefore, the operator needs to frequently change different specifications of clamps in actual application, which increases production time and operation difficulty, and affects production efficiency and product quality. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model provides a kind of magnetic core framework clamping fixture to improve production efficiency, simplify operation process, reduce cost.
[0005] The utility model provides a kind of magnetic core skeleton holding fixture, which clamps coil skeleton and iron core. It includes a movable lever, an active block provided on the movable lever, a limiting structure sleeved on the outer periphery of the movable lever, two support structures respectively fixedly connected with the limiting structure, and a fixed block provided above the support structure. The movable lever includes a control end, an active end provided opposite to the control end, a first connecting shaft connecting the movable lever and the limiting structure, and a second connecting shaft connecting the movable lever and the active block. A pressing block is provided below the active end, and a control block is provided above the control end. The first connecting shaft is the fulcrum of the movable lever. The second connecting shaft enables the movable lever and the active block to move together. A sleeving groove is provided on the end face of the active block facing the active end. Second pressing blocks are respectively provided on both sides of the sleeving groove extending towards the coil skeleton. One end of the limiting structure is provided with a second sleeving groove for accommodating the movable lever and the active block and limiting the moving direction thereof. A limiting groove is provided on the cross-sectional shape of the limiting structure facing the active end, which determines the moving range of the pressing block and the second pressing block. The support structure supports the coil skeleton and the limiting structure from below and is provided with a stop edge on the side of the coil skeleton facing the control end. The fixed block is connected with the limiting structure by a connecting member and is provided above the active end. The movable lever and the active block are connected with the fixed block by a spring. During winding, the movable lever and the active block are elastically supported by the spring and pressed on the iron core and the coil skeleton, and the coil skeleton and the iron core are fixed by the support structure. When replacing the iron core or the coil skeleton, the control end is manually or using a cylinder to push, and the active end drives the active block to separate from the iron core and the coil skeleton.
[0006] Further, a pressing block is provided below the active end, a control block is provided above the control end, and a transition slope is provided between the control end and the active end.
[0007] Further, an angle of the active end facing the fixed block is ramp-shaped.
[0008] Further, mounting holes are respectively provided at both ends of the inner side wall of the sleeving groove, and the diameter of the mounting holes is greater than the diameter of the second connecting shaft.
[0009] Further, the magnetic core skeleton holding fixture further includes a rotating shaft mounted with the limiting structure, and one end of the limiting structure is axially provided and sleeved in the rotating shaft.
[0010] Further, two opposite second mounting grooves are provided on the outer side of the second sleeving groove.
[0011] Further, the fixed block is provided with a first spring groove on the side of the movable lever, and two second spring grooves which are symmetrically arranged outside the first spring groove, and the movable lever and the movable block are provided with corresponding first and second spring grooves.
[0012] Compared with the prior art, the magnetic core framework clamping jig provided by the utility model can fix the coil framework and the iron core at the same time through the first connecting shaft, the movable lever and the movable block, and can install coil frameworks and iron cores of different specifications through the limiting structure. The first connecting shaft penetrates through the movable lever to connect the limiting structure, and is the fulcrum of the movable lever, which assists the control end in operating the movable end. The second connecting shaft penetrates through the movable end to connect the movable block, so that the movable lever can drive the movable block to move together. One end of the limiting structure is in the shape of a shaft, and the displacement direction of the movable lever is controlled. The limiting groove determines the movement range of the pressing block and the second pressing block. The supporting structure fixes the coil framework and the limiting structure, and the distance from the retaining edge to the opposite side of the supporting structure is fixed, which is used for fixing the coil framework. Due to the limiting groove, the positions of the pressing block and the second pressing block can tightly press the coil framework or the iron core which have the same cross-sectional shape but different heights. The fixed block is provided with springs to connect the movable lever and the movable block, and the position of the coil framework or the iron core is fixed during the winding rotation. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The utility model provides a kind of structure schematic diagram of magnetic core framework clamping jig.
[0014] Figure 2 The structure of the magnetic core framework clamping jig is shown in the figure. Figure 1 The structure of the magnetic core framework clamping jig is shown in the figure.
[0015] Figure 3 The structure of the magnetic core framework clamping jig is shown in the figure. Figure 1 The structure of the magnetic core framework clamping jig is shown in the figure.
[0016] Figure 4 The structure of the magnetic core framework clamping jig is shown in the figure. Figure 1 The structure of the magnetic core framework clamping jig is shown in the figure.
[0017] Figure 5 The structure of the magnetic core framework clamping jig is shown in the figure. Figure 1 The structure of the magnetic core framework clamping jig is shown in the figure. DETAILED DESCRIPTION
[0018] The specific embodiments of the utility model will be further described below. It should be understood that the description of the embodiments of the utility model herein is not intended to limit the protection scope of the utility model.
[0019] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the utility model. It should be understood that the terms "front", "back", "left", "right", "up", "down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0020] Please refer to Figures 1 to 5 It is a structure schematic view of a magnetic core framework clamping jig provided by the utility model. The magnetic core framework clamping jig comprises a movable lever 10, a movable block 20 arranged on the movable lever 10, a limiting structure 30 sleeved on the outer periphery of the movable lever 10, two supporting structures 40 fixedly connected with the limiting structure 30 respectively, a fixed block 50 arranged above the supporting structure 40 and a rotating shaft 60 installed with the limiting structure 30. It can be conceived that the magnetic core framework clamping jig also comprises other functional modules, such as connecting pieces and the like, which are the technology commonly known by those skilled in the art, and will not be described here.
[0021] The movable lever 10 is arranged in a stepped manner. The movable lever 10 comprises a control end 11, a movable end 12 arranged opposite to the control end 11, a first connecting shaft 13 connecting the movable lever 10 and the limiting structure 30, and a second connecting shaft 14 connecting the movable lever 10 and the movable block 20. The control end 11 is provided with a control block 111 above, and the movable end 12 is provided with a pressing block 121 below. A transition slope is arranged between the control end 11 and the movable end 12 to increase the moving distance of the control end 11 towards the fixed block 50. The control end 11 is used to control the displacement of the pressing block 121, thereby assisting the replacement of the iron core. The pressing block 121 is used to be buckled on the iron core to prevent the iron core from shifting during the winding of the coil on the iron core. The movable end 12 is arranged in a slope shape towards one corner of the fixed block 50 to increase the moving distance of the movable end 12 towards the fixed block 50. The first connecting shaft 13 is arranged at the middle of the movable lever 10 and is biased towards the movable end 12. The first connecting shaft 13 penetrates through the movable lever 10 to connect the limiting structure 30, which is the fulcrum of the movable lever 10, and the control end 11 and the movable end 12 move in opposite directions. The second connecting shaft 14 penetrates through the movable end 12 to connect the movable block 20, so that the movable lever 10 can drive the movable block 20 to move.
[0022] The movable block 20 is provided with a sleeving groove 21 on the end face towards the movable end 12. The inner side walls of the sleeving groove 21 are respectively provided with an installation hole 22 penetrating through the two ends. Since the diameter of the installation hole 22 is greater than the diameter of the second connecting shaft 14, the control end 11 can first move the pressing block 121 alone within the range of the installation hole 22, and then drive the movable block 20 to move synchronously after touching the installation hole 22, so that the coil skeleton is pressed tightly before the iron core during buckling, and the iron core is loosened before the coil skeleton during disassembly, thereby making the coil skeleton and the iron core more tightly installed on the clamping jig. The two sides of the sleeving groove 21 extend towards the coil skeleton direction and are respectively provided with a second pressing block 211. The second pressing block 211 is fixed on the coil skeleton under the operation of the control end 11.
[0023] The limiting structure 30 is provided with a shaft at one end and a second set of grooves 31 at the other end. The second set of grooves 31 is used to accommodate the movable lever 10 and the movable block 20 and limit their movement direction. The groove of the second set of grooves 31 is provided on both sides of the limiting structure 30 towards the fixed block 50 and the coil framework, and the extension direction of the groove is the same as the movement direction of the movable lever 10. The cross-sectional shape of the second set of grooves 31 is the profile shape of the control end 11 to the movable block 20 in the horizontal state. The limiting structure 30 is provided with a limiting groove 32 on the cross-sectional shape towards the movable end 12. The limiting groove 32 determines the movement range of the pressing block 121 and the second pressing block 211. The outer side of the second set of grooves 31 is provided with two opposite second mounting grooves 311 for connecting the limiting structure 30 and the supporting structure 40, and assisting the limiting structure 30 and the coil framework to be fixed to each other.
[0024] The supporting structure 40 is installed in the second mounting groove 311 through a connecting piece, supports the coil framework and the limiting structure 30 from below, fixes the coil framework and the limiting structure 30, and is provided with a stop edge 41 on the side of the coil framework towards the control end 11 to prevent displacement of the coil framework when winding and rotating. The distance from the stop edge 41 to the opposite side of the supporting structure 40 is fixed, and the length is greater than or equal to the installation length of the coil framework for installing and fixing the coil framework. Due to the provision of the limiting groove 32, the positions of the pressing block 121 and the second pressing block 211 can be adjusted, so that the supporting structure 40 can tightly press the coil framework or the iron core with the same cross-sectional shape but different heights.
[0025] The fixed block 50 is connected to the limiting structure 30 through a connecting piece and is arranged above the movable end 12 of the movable lever 10 to leave space for controlling the control end 11. The fixed block 50 is provided with a first spring groove 51 on the side towards the movable lever 10, and two second spring grooves 52 which are symmetrical to each other and are arranged outside the first spring groove 51. The movable lever 10 and the movable block 20 are provided with corresponding first and second spring grooves 52, so that the movable lever 10 and the movable block 20 are connected to the fixed block 50 through springs, thereby maintaining a stable position supported by the springs. Since the second spring grooves 52 are arranged outside the first spring grooves 51, the distance relative to the second spring grooves 52 is greater than the distance relative to the first spring grooves 51.
[0026] The rotating shaft 60 is sleeved outside the limiting structure 30. The rotating shaft 60 is a general technology, and will not be described again.
[0027] When winding, the movable lever 10 and the movable block 20 are elastically supported and pressed on the iron core and the coil frame by springs, and the movable lever 10 and the movable block 20 are fixed with the coil frame and the iron core by the supporting structure 40. When replacing the iron core or the coil frame, the control end 11 is manually or by using a cylinder to push, and the movable end 12 drives the movable block 20 to move in the opposite direction, so that the movable block 20 is separated from the iron core and the coil frame.
[0028] Compared with the prior art, the magnetic core frame clamping jig provided by the utility model can fix the coil frame and the iron core at the same time by setting the first and second connecting shafts 13 and 14, the movable lever 10 and the movable block 20, and can install coil frames and iron cores of different specifications by setting the limiting structure 30. The first connecting shaft 13 penetrates through the movable lever 10 and connects the limiting structure 30, is the fulcrum of the movable lever 10, and assists the control end 11 in operating the movable end 12. The second connecting shaft 14 penetrates through the movable end 12 and connects the movable block 20, so that the movable lever 10 can drive the movable block 20 to move together. One end of the limiting structure 30 is in the shape of a shaft and is arranged to control the displacement direction of the movable lever 10. The limiting groove 32 determines the movement range of the pressing block 121 and the second pressing block 211. The supporting structure 40 fixes the coil frame and the limiting structure 30, and the distance between the stop edge 41 and the opposite side of the supporting structure 40 is fixed and used for fixing the coil frame. Due to the setting of the limiting groove 32, the positions of the pressing block 121 and the second pressing block 211 can tightly press the coil frames or iron cores with the same cross-sectional shape but different heights. The fixed block 50 is provided with springs and is connected with the movable lever 10 and the movable block 20, and can fix the positions of the movable lever 10 and the movable block 20 during winding rotation.
[0029] The above is only a preferred embodiment of the utility model, and is not used for limiting the protection scope of the utility model, and any modification, equivalent replacement or improvement within the utility model spirit is covered in the claim scope of the utility model.
Claims
1. A magnetic core frame clamping fixture, wherein the magnetic core frame clamping fixture clamps a coil frame and an iron core, characterized in that: The magnetic core skeleton clamping fixture includes a movable lever, a movable block disposed on the movable lever, a limiting structure sleeved on the outer periphery of the movable lever, two support structures respectively fixedly connected to the limiting structure, and a fixing block disposed above the support structure. The movable lever includes a control end, a movable end disposed opposite to the control end, a first connecting shaft connecting the movable lever and the limiting structure, and a second connecting shaft connecting the movable lever and the movable block. A pressing block is disposed below the movable end, and a control block is disposed above the control end. The first connecting shaft is the fulcrum of the movable lever, and the second connecting shaft causes the movable lever and the movable block to move together. The movable block has a sleeve groove on its end face facing the movable end, and a second pressing block is disposed on each side of the sleeve groove extending towards the coil skeleton. The limiting structure... The control end is provided with a second set of slots, which are used to accommodate the movable lever and the movable block and restrict their movement direction. The limiting structure has a limiting groove on its cross-sectional shape facing the movable end, which determines the movement range of the pressing block and the second pressing block. The supporting structure supports the coil frame and the limiting structure from below, and has a stop edge on the side of the coil frame facing the control end. The fixing block is connected to the limiting structure through a connector and is set above the movable end. The movable lever and the movable block are connected to the fixing block by a spring. When winding, the movable lever and the movable block are elastically supported by the spring and pressed on the iron core and the coil frame. The supporting structure fixes the coil frame and the iron core. When replacing the iron core or the coil frame, the control end is pushed manually or by a cylinder. The movable end causes the movable block to separate from the iron core and the coil frame.
2. The magnetic core skeleton clamping fixture as described in claim 1, characterized in that: A transition ramp is provided between the control end and the moving end.
3. The magnetic core frame clamping fixture as described in claim 1, characterized in that: The movable end is sloped towards one corner of the fixed block.
4. The magnetic core frame clamping fixture as described in claim 1, characterized in that: The inner sidewall of the sleeve groove is provided with a mounting hole at each end, and the diameter of the mounting hole is larger than the diameter of the second connecting shaft.
5. The magnetic core frame clamping fixture as described in claim 1, characterized in that: The magnetic core skeleton clamping fixture also includes a rotating shaft that is installed with the limiting structure. One end of the limiting structure is shaped like a shaft and is sleeved in the rotating shaft.
6. The magnetic core skeleton clamping fixture as described in claim 1, characterized in that: The outer side of the second mounting slot is provided with two opposing second mounting slots.
7. The magnetic core frame clamping fixture as described in claim 1, characterized in that: The fixed block is provided with a first spring groove on the side facing the movable lever, and two second spring grooves that are symmetrical to each other and located outside the first spring groove. The movable lever and the movable block are provided with corresponding first and second spring grooves.