Laminating tool clamp for preparing motor iron core

Abstract

The utility model discloses an overlying tool clamp for preparing a motor iron core, and relates to the technical field of iron core production, the overlying tool clamp comprises a bottom plate, the bottom plate is provided with a placing table for placing the iron core, the placing table is matched with the iron core, the bottom plate is provided with a group of side plates along the length direction of the bottom plate and located on two sides of the placing table, and the side plates are arranged on the bottom plate. A pair of clamping plates are arranged between the side plates in the length direction of the bottom plate in a sliding mode, clamping grooves matched with the iron core are formed in the sides, close to the containing table, of the clamping plates, connecting plates are arranged at one ends of the side plates, the connecting plates are in threaded connection with driving rods, and the ends, close to the containing table, of the driving rods abut against the clamping plates; the side plates are matched with the slidable clamping plates, the iron cores can be clamped from the two sides in the laminating process, the clamping grooves are matched with the iron cores, the iron cores can be better attached to the side faces of the iron cores, pressure can be evenly applied to the iron cores, and the problem that sheets are wrinkled due to uneven pressure is solved.

Description

Technical Field

[0001] This application relates to the field of iron core production technology, and in particular to a stacking fixture for preparing motor iron cores. Background Technology

[0002] In modern industry, electric motors, as key power equipment, are widely used in various scenarios, from household appliances to industrial manufacturing. The motor core, as one of the core components of a motor, directly affects the overall operating efficiency, stability, and service life of the motor. The core is typically made by stacking numerous sheets of silicon steel and other materials. This stacking process requires specialized tooling and fixtures to achieve precise forming and stable assembly, ensuring that the core performs optimally during motor operation and meets the stringent requirements of different working conditions.

[0003] In existing technologies, the stacking fixtures used in the fabrication of motor cores often employ iron plates as key components for fixing the sheet materials. Generally, sheets of silicon steel or similar materials are neatly stacked on a worktable in a predetermined order. Then, several iron plates of a certain thickness are used to apply pressure from the sides of the stacked sheets, clamping and fixing them in place. Maintaining the clamping state of the sheets by fixing the iron plates ensures the continuous stacking process until the sheet stacking steps required for the initial forming of the core are completed.

[0004] Regarding the aforementioned technologies, the inventors believe that when several iron plates apply pressure to stacked sheets from the side, the sheet at the center of the pressure point of the iron plates bears greater pressure, while the edge part bears relatively less force. When pressing down on the stacked iron core, the frictional force at the edge of the iron core is different, and the uneven force on the iron core can easily lead to wrinkles in the iron core. Utility Model Content

[0005] The purpose of this application is to provide a stacking fixture for preparing motor cores, so as to improve the problem that the frictional force at the edge of the core is different when several iron plates are subjected to pressure.

[0006] This application provides a stacking fixture for manufacturing motor cores, which adopts the following technical solution:

[0007] A stacking fixture for preparing motor cores includes a base plate with a placement platform for placing the core. The placement platform is adapted to the core. A set of side plates are provided on both sides of the placement platform along the length of the base plate. A pair of clamping plates are slidably arranged between the side plates along the length of the base plate. The clamping plates have clamping grooves adapted to the core on the side near the placement platform. A connecting plate is provided at one end of the side plate. A drive rod is threadedly connected to the connecting plate. The end of the drive rod near the placement platform abuts against the clamping plate.

[0008] By adopting the above technical solution, a base plate is set as the basic support component, and the placement platform is adapted to the iron core for accurate placement. The side plates and sliding clamping plates cooperate to clamp the iron core from both sides during the stacking process. The clamping grooves are adapted to the iron core and can better fit the side of the iron core, which helps to apply pressure to the iron core evenly and reduce the problem of sheet wrinkling caused by uneven pressure. By rotating the drive rod, the position of the clamping plate and the amount of pressure applied to the iron core can be easily adjusted, realizing the adjustment and fixation of the movement of the clamping plate and maintaining clamping stability.

[0009] Optionally, a center rod adapted to the inner diameter of the iron core is provided at the center of the placement platform along the vertical direction.

[0010] By adopting the above technical solution, when placing the iron core, the center rod is inserted into the inner hole of the iron core, which helps to determine the position of the iron core, reduce its offset during the stacking process, and improve the accuracy and quality of the stacking.

[0011] Optionally, the central rod is slidably disposed through the base plate, a central plate is disposed on the bottom surface of the central rod, an elastic element is disposed on the central plate, and the end of the elastic element away from the central plate is connected to the bottom surface of the base plate.

[0012] By adopting the above technical solution, during the stacking process, the elastic element can work with the stacking device to press the iron core to move down synchronously, so that the center rod can better cooperate with the stacking operation while assisting in positioning the iron core.

[0013] Optionally, the clamping plate is provided with elastic pads on both sides of the clamping groove.

[0014] By adopting the above technical solution, the elastic pad can also increase the friction between the clamping plates, making the clamping more secure and reducing the possibility of the iron core sliding or shifting during the stacking process.

[0015] Optionally, the elastic pad has several raised strips.

[0016] By adopting the above technical solution, the raised strip further increases the friction between the clamping plates, better maintains the tight fit of the iron core, and improves the quality of stacking.

[0017] Optionally, the raised strips on both sides of the placement platform are staggered to ensure that the clamping plates fit tightly together.

[0018] By adopting the above technical solution, when the clamping plates on both sides move towards the middle to clamp the iron core, the staggered protrusions interlock with each other, further increasing the friction between the clamping plates, better maintaining the tight fit of the iron core, and improving the quality of the stacking.

[0019] Optionally, sliders are provided on both sides of the clamping plate, and the inner sidewall of the side plate is provided with a sliding groove to accommodate the sliders.

[0020] By adopting the above technical solution, the sliders on both sides of the clamping plate cooperate with the grooves on the inner sidewall of the side plate, thereby improving the stability of the clamping plate moving along the length of the base plate.

[0021] Optionally, one end of the connecting plate is rotatably connected to the side plate, and one end of the side plate is provided with an overlapping plate, which engages with the end of the connecting plate away from the rotating end.

[0022] By adopting the above technical solution, one end of the connecting plate is rotatably connected to the side plate, which allows the connecting plate to rotate flexibly and facilitates the sliding removal of the clamping plate along the side plate. The overlapping plate engages with the connecting plate to fix the position of the connecting plate, so that the drive rod can stably apply pressure to the clamping plate, thereby improving the operational flexibility and disassembly of the tooling fixture.

[0023] Optionally, the end of the drive rod near the placement platform is provided with a stop plate that abuts against the clamping plate.

[0024] By adopting the above technical solution, the abutment increases the contact area between the drive rod and the clamping plate, so that the force applied by the drive rod can be transmitted to the clamping plate more evenly, reducing the possibility of excessive local stress on the clamping plate.

[0025] In summary, this application includes at least one of the following stacking fixtures for preparing motor cores, which has beneficial technical effects:

[0026] 1. By setting a base plate as the basic support component, the placement platform is adapted to the iron core for accurate placement; the side plates and sliding clamping plates cooperate to clamp the iron core from both sides during the stacking process. The clamping grooves are adapted to the iron core to better fit the side of the iron core, which helps to apply pressure to the iron core evenly and reduce the problem of sheet wrinkling caused by uneven pressure; the position of the clamping plate and the amount of pressure applied to the iron core can be easily adjusted by rotating the drive rod, realizing the adjustment and fixation of the movement of the clamping plate and maintaining clamping stability.

[0027] 2. When placing the iron core, inserting the center rod into the inner hole of the iron core helps to determine the position of the iron core, reduce its offset during the stacking process, and improve the accuracy and quality of the stacking;

[0028] 3. During the stacking process, the elastic element can work with the stacking device to press the iron core down synchronously, so that the center rod can better cooperate with the stacking operation while assisting in positioning the iron core. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the stacking fixture used to prepare motor cores;

[0030] Figure 2 This is a side view of the stacking fixture used to prepare motor cores.

[0031] In the diagram, 1 is the base plate; 2 is the placement platform; 3 is the side plate; 31 is the slide groove; 32 is the overlapping plate; 4 is the clamping plate; 41 is the clamping groove; 42 is the slider; 5 is the connecting plate; 51 is the drive rod; 511 is the abutment plate; 6 is the center rod; 61 is the center plate; 62 is the elastic element; 7 is the elastic pad; and 71 is the raised strip. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail below.

[0033] A stacking fixture for manufacturing motor cores, as described in the following figure. Figure 1 The fixture includes a base plate 1, made of metal, which serves as the fundamental support component for the entire tooling fixture. A placement platform 2 for placing the iron core is welded onto the base plate 1. The placement platform 2 is precisely machined according to the external dimensions of the iron core to be stacked, and is adapted to fit the iron core. A center rod 6, matching the inner diameter of the iron core, is installed vertically at the center of the placement platform 2. The outer diameter of the center rod 6 matches the inner diameter of the iron core, used for precise positioning of the iron core during the stacking process.

[0034] Reference Figure 1 , Figure 2 The center rod 6 slides through a pre-drilled through hole (not shown in the figure) in the base plate 1. A clearance fit is used between the center rod 6 and the through hole, and grease is applied to the surface of the center rod 6 to ensure smooth up-and-down sliding. A center plate 61, a flat metal plate, is welded to the bottom surface of the center rod 6, providing mounting support for the elastic element 62. The elastic element 62, a metal spring, is welded onto the center plate 61, with the end of the elastic element 62 away from the center plate 61 connected to the bottom surface of the base plate 1 by welding.

[0035] Reference Figure 1 , Figure 2 A set of side plates 3, made of channel steel or steel plate, are welded onto the base plate 1 along its length and on both sides of the placement platform 2, providing lateral support and guidance for the entire fixture. A pair of clamping plates 4, made of steel plate, are slidably mounted between the side plates 3 along the length of the base plate 1, clamping and fixing the iron core from both sides. Slider blocks 42, which are rectangular in shape, are integrally formed on both sides of the clamping plates 4. Slide grooves 31, milled to correspond to the positions of the sliders 42, are milled onto the inner sidewalls of the side plates 3. The sliders 42 and slide grooves 31 are in a clearance fit. Lubricant can be applied to the surfaces of the sliders 42 and slide grooves 31, allowing the clamping plates 4 to slide flexibly between the side plates 3.

[0036] Reference Figure 1 , Figure 2The clamping plate 4, near the placement table 2, has a milled groove 41 adapted to the iron core. The shape and size of the groove 41 are consistent with the side shape of the iron core, allowing it to fit tightly against the side of the iron core. Elastic pads 7, made of elastic materials such as rubber, are glued to both sides of the clamping plate 4 near the groove 41. These elastic pads provide cushioning and increase friction when clamping the iron core. Several raised strips 71, elongated in shape, are formed on the elastic pads 7 using a mold. The raised strips 71 on both sides of the placement table 2 are staggered, allowing them to interlock when the clamping plates 4 move towards the center to clamp the iron core.

[0037] Reference Figure 1 , Figure 2 One end of the side plate 3 is rotatably connected to the connecting plate 5 by means of a bearing. A bearing seat is installed on the side plate 3, and one end of the connecting plate 5 is connected to the bearing seat by a pin. A lap plate 32 is welded to one end of the side plate 3, and the lap plate 32 engages with the end of the connecting plate 5 away from the rotating end. A threaded hole is machined on the connecting plate 5, and the drive rod 51 is threadedly connected to the connecting plate 5 by means of a threaded engagement. The drive rod 51 is a metal rod with external threads, and it can be moved axially on the connecting plate 5 by rotating the drive rod 51. The end of the drive rod 51 near the placement platform 2 abuts against the clamping plate 4. A stop plate 511 is welded to the end of the drive rod 51 near the placement platform 2, which abuts against the clamping plate 4. The stop plate 511 is a circular or square metal plate. In this embodiment, a circular stop plate 511 is preferred. Its function is to increase the contact area between the drive rod 51 and the clamping plate 4, so that the force applied by the drive rod 51 can be transmitted to the clamping plate 4 more evenly.

[0038] The implementation principle of this application embodiment is as follows:

[0039] In actual use, the iron core to be stacked is placed on the suitable placement platform 2, and the center rod 6 is inserted into the inner hole of the iron core for positioning. Then, the connecting plate 5 is rotated to engage with the overlapping plate 32. Next, the drive rod 51 is rotated, and it moves axially on the connecting plate 5 through a threaded engagement. The abutment plate 511 pushes the clamping plate 4, and the sliders 42 on both sides of the clamping plate 4 slide in the sliding grooves 31 of the side plate 3. The clamping grooves 41 fit against the side of the iron core. The staggered protrusions 71 on the elastic pad 7 interlock with each other to increase friction and buffer. After fixing, the iron core is pressed from above using an external stacking device. This helps to improve the problem of different frictional forces at the edge of the iron core when the iron plate applies pressure to fix the stacked iron core sheets.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lamination press tooling fixture for making an electrical machine core, characterized by: The utility model provides a core placing device, including bottom plate (1), bottom plate (1) is provided with the placing table (2) of placing iron core, placing table (2) is adapted to iron core, bottom plate (1) is provided with a group of side plates (3) along its length direction and is located placing table (2) both sides, a pair of clamping plates (4) are slidably arranged along the length direction of bottom plate (1) between side plates (3), clamping plate (4) is opened with the clamping groove (41) of adapting to iron core near placing table (2) one side, the one end of side plate (3) is provided with connecting plate (5), connecting plate (5) is screw thread connection with drive rod (51), drive rod (51) is close to placing table (2) one end and clamping plate (4) abuts.

2. A lamination press tooling fixture for making an electrical machine core according to claim 1, characterized in that: The center of the placing table (2) is provided with a center rod (6) with an inner diameter adapted to the iron core in the up-down direction.

3. A lamination press tooling fixture for making an electrical machine core according to claim 2, characterized in that: The center rod (6) is slidably arranged through the bottom plate (1), and the bottom surface of the center rod (6) is provided with a center plate (61), the center plate (61) is provided with an elastic element (62), and the end of the elastic element (62) away from the center plate (61) is connected to the bottom surface of the bottom plate (1).

4. The lamination press tooling fixture of claim 1, wherein: The clamping plate (4) is provided with an elastic pad (7) on both sides of the clamping groove (41).

5. A lamination press tooling fixture for making an electrical machine core according to claim 4, characterized in that: The elastic pad (7) is provided with a plurality of protruding strips (71).

6. A lamination press tooling fixture for making an electrical machine core according to claim 5, characterized in that: The protruding strips (71) on both sides of the placing table (2) are arranged alternately to make the clamping plate (4) tightly fit.

7. A lamination fixture for making an electrical machine core according to claim 4, characterized in that: The clamping plate (4) is provided with a sliding block (42) on both sides, and the inner wall of the side plate (3) is provided with a sliding groove (31) adapted to the sliding block (42).

8. A lamination fixture for making an electrical machine core according to claim 1, characterized in that: The one end of the connecting plate (5) is rotatably connected with the side plate (3), the one end of the side plate (3) is provided with a lap plate (32), and the end of the lap plate (32) away from the rotating end is clamped with the connecting plate (5).

9. A lamination fixture for making an electrical machine core according to claim 1, characterized in that: The one end of the drive rod (51) close to the placing table (2) is provided with an abutting plate (511) abutting with the clamping plate (4).

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