A multi-piece rotor core integrated machining precision positioning device

Abstract

The utility model discloses a many piece rotor core integrated machining accurate positioning device, including device bottom plate, be equipped with the support fixed plate on the device bottom plate, be equipped with a plurality of vertical arrangement's magnetic steel groove accurate positioning board on the support fixed plate, still be equipped with a plurality of water drop hole positioning column on the support fixed plate, still be provided with a plurality of product partition on the magnetic steel groove accurate positioning board, divide multiple installation area in vertical direction to the magnetic steel groove accurate positioning board, product partition all parallel to the support fixed plate arrangement. This many piece rotor core integrated machining accurate positioning device not only can utilize a set of device to carry out the stacking operation to many piece rotor core, and has the structure of accurate orientation, mistake prevention and positioning, can eliminate the deformation, misplacement, twist skew etc. of rotor core product in the stacking manufacturing process, guarantees product quality, has the quick positioning ability simultaneously, has reduced the personnel operation difficulty, improved production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor manufacturing technology, specifically to a precision positioning device for integrated machining of multiple rotor cores. Background Technology

[0002] In the current manufacturing process of new energy drive motor cores, the processing of self-adhesive rotor cores is always a separate process, resulting in low processing efficiency and significant waste. Furthermore, due to the numerous and demanding magnet slots, the rotor cores have complex shapes, and stacked products are prone to misalignment and deformation. Inadequate tooling design makes it difficult to guarantee the dimensional accuracy of product parts. During stacking, problems such as unevenness, deformation, twisting, and low efficiency can easily occur, affecting subsequent processes such as magnet insertion and assembly. To solve this problem, a high-precision positioning device with high positioning accuracy and a reasonable tooling design is needed to accurately position the self-adhesive rotor segments, and a high-precision auxiliary device that is easy to operate and stack. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a precise positioning device for integrated machining of multiple rotor cores.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A precision positioning device for integrated machining of multiple rotor cores includes a base plate with a supporting plate. The supporting plate has several vertically arranged magnetic slot precision positioning plates, each adapted to the magnetic slot shape of the rotor core laminations to be stacked. The supporting plate also has several teardrop-shaped positioning posts arranged on the inner side of the magnetic slot precision positioning plates. Furthermore, the magnetic slot precision positioning plates are equipped with several product partitions, vertically dividing the magnetic slot precision positioning plates into multiple installation areas. All product partitions are arranged parallel to the supporting plate.

[0005] This precision positioning device for integrated processing of multiple rotor cores not only allows for the stacking of multiple rotor cores using a single unit, but also features precise guidance, error prevention, and positioning structures. It eliminates deformation, misalignment, and twisting of rotor cores during the stacking process, ensuring product quality. Furthermore, it offers rapid positioning capabilities, maintaining product shape. Product stacking and clamping are convenient and quick, simplifying operation, reducing operator difficulty, and improving production efficiency.

[0006] Furthermore, the support fixing plate is provided with a contour positioning hole, and the lower end of the magnetic steel groove precision positioning plate is inserted into the contour positioning hole and locked by fasteners.

[0007] Furthermore, the magnet slot precision positioning plates are arranged in pairs, in a distribution pattern of magnet slots of the rotor core laminations to be stacked.

[0008] Furthermore, the upper end of the magnetic steel slot precision positioning plate is provided with guide ends. The cross-sectional size of the guide ends decreases from bottom to top, which makes it easier to put the product in and also helps the numerous slots on the stamping to correspond with each slot precision positioning plate, ensuring that the products do not deform when stacked and maintaining the product shape.

[0009] Furthermore, the guide end has a trapezoidal structure with rounded corners between the surfaces, which is more conducive to the insertion of the laminations and can also avoid scratching the laminations with sharp corners and acute angles.

[0010] Furthermore, the lower end of the water droplet positioning post is inserted and fixed to the support fixing plate, and the upper end is provided with a guide water droplet head. The water droplet positioning post passes through the product partition.

[0011] Furthermore, at least two of the water droplet positioning posts have an end height higher than the end height of the remaining water droplet positioning posts and the end height of the magnetic groove precision positioning plate.

[0012] Furthermore, the product partition is at least two arranged in parallel vertically, the product partition is an annular partition, and the outer periphery of the product partition is also provided with radial holes.

[0013] Furthermore, the supporting fixing plate includes a fixing plate base plate and a fixing plate mounting plate located on the fixing plate base plate. The fixing plate base plate is fixedly mounted on the device base plate by internal hexagon screws. The area of ​​the fixing plate base plate is larger than the area of ​​the fixing plate mounting plate. The fixing plate mounting plate is provided with the magnetic steel groove precision positioning plate and the water droplet hole positioning column.

[0014] Furthermore, the dimensional accuracy of the support fixing plate is not less than 0.001mm and the flatness is not less than 0.01mm, the dimensional accuracy of the magnetic steel groove precision positioning plate is not less than 0.002mm and the flatness is not less than 0.01mm, and the dimensional accuracy of the product partition is not less than 0.005mm and the parallelism is not less than 0.01mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This multi-rotor core integrated processing precision positioning device can not only stack multiple rotor cores using one set of equipment, but also has a precise guiding, error prevention and positioning structure, which can eliminate deformation, misalignment, and twisting of rotor core products during the stacking manufacturing process, ensuring product quality; at the same time, it has a rapid positioning capability, can maintain the product shape, and the product stacking and clamping is convenient and quick, simple to operate, reduces the difficulty of personnel operation, and improves production efficiency; 2. The magnetic steel groove precision positioning plate and the The high dimensional precision of the teardrop-shaped positioning post ensures that the rotor laminations are stacked correctly, the magnet slots are neat, not twisted, and consistent, the inner and outer diameters of the product are axially aligned, the product has good assembly performance, and the product's magnet insertion qualification rate is improved. 3. The product partition plate setting allows multiple rotor cores to be stacked sequentially on a single tooling without interfering with each other. After multiple cores are stacked, this tooling can also transfer them to a heating and curing device at the same time to cure the self-adhesive laminations of the multiple stacked cores, which significantly improves production efficiency and reduces production costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a precision positioning device for integrated machining of multiple rotor cores according to the present invention; Figure 2 This is a front view of a precision positioning device for integrated machining of multiple rotor cores according to this utility model; In the diagram: 1. Device base plate; 2. Support and fixing plate; 201. Fixing plate base plate; 202. Fixing plate support plate; 3. Magnetic steel groove precision positioning plate; 301. Guide end; 4. Water drop hole positioning column; 401. Guide water drop head; 5. Product partition; 501. Radial hole. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0019] like Figure 1 and Figure 2 As shown, a precision positioning device for integrated processing of multiple rotor cores includes a base plate 1, a support and fixing plate 2 on the base plate 1, and several vertically arranged magnetic slot precision positioning plates 3 on the support and fixing plate 2. The magnetic slot precision positioning plates 3 are adapted to the magnetic slot shape of the rotor core laminations to be stacked. The support and fixing plate 2 also has several teardrop-shaped positioning posts 4, which are arranged in the inner area of ​​the magnetic slot precision positioning plates 3. The magnetic slot precision positioning plates 3 are also provided with several product partitions 5, which vertically divide the magnetic slot precision positioning plates 3 into multiple installation areas. The product partitions 5 are all arranged parallel to the support and fixing plate 2.

[0020] This precision positioning device for integrated processing of multiple rotor cores not only allows for the stacking of multiple rotor cores using a single unit, but also features precise guidance, error prevention, and positioning structures. It eliminates deformation, misalignment, and twisting of rotor cores during the stacking process, ensuring product quality. Furthermore, it offers rapid positioning capabilities, maintaining product shape. Product stacking and clamping are convenient and quick, simplifying operation, reducing operator difficulty, and improving production efficiency.

[0021] The high dimensional precision of the magnet slot positioning plate 3 and the water droplet hole positioning column 4 ensures that the rotor laminations (loose laminations) are not misaligned, the magnet slots are neat, not twisted, and have good consistency. The inner and outer diameters of the product are axially aligned, the product has good assembly performance, and the product's magnet insertion qualification rate is improved.

[0022] The magnet slot precision positioning plate 3 corresponds one-to-one with the slot shape of each magnet inserted on the rotor core lamination and is size-matched, which can position each slot shape to ensure its correctness; the water drop hole positioning post 4 corresponds to the axial through hole on the lamination, which can position the axial through hole to ensure its accuracy.

[0023] The product partition 5 allows multiple rotor cores to be stacked sequentially on a single tooling without interfering with each other. After the multiple cores are stacked, the tooling can also transfer them to a heating and curing device to cure the self-adhesive laminations of the stacked cores, thereby significantly improving production efficiency and reducing production costs.

[0024] The device base plate 1 provides a reliable foundation for the entire positioning fixture. The support and fixing plate 2 is set on the device base plate 1 to support the installation of the magnet slot precision positioning plate and the water droplet positioning column, and to bear the stacked rotor core.

[0025] Furthermore, the support fixing plate 2 is provided with a contour positioning hole, and the lower end of the magnetic steel groove precision positioning plate 3 is inserted into the contour positioning hole and locked by fasteners.

[0026] The design of the contour holes and the internal hexagon screws facilitates the installation and fixing of the magnet slot precision positioning plates, and also facilitates the disassembly of each magnet slot precision positioning plate for independent replacement and maintenance. In practice, different numbers of magnet slot precision positioning plates can be installed as needed.

[0027] Furthermore, the magnet slot precision positioning plates 3 are arranged in pairs, in a distribution pattern of magnet slots of the rotor core laminations to be stacked.

[0028] Furthermore, the upper end of the magnetic steel groove precision positioning plate 3 is provided with guide ends 301, and the cross-sectional dimensions of the guide ends 301 decrease from bottom to top.

[0029] The guide end of the magnetic steel groove precision positioning plate 3 makes it easier to put the product in, and also helps the numerous grooves on the stamping to correspond with each groove precision positioning plate, ensuring that the product does not deform when stacked and can maintain the product shape.

[0030] Furthermore, the guide end 301 has a trapezoidal structure with rounded corners between the surfaces. The rounded corners are more conducive to the insertion of the laminations and can also prevent sharp corners and acute angles from scratching the laminations.

[0031] Furthermore, the lower end of the water droplet positioning post 4 is inserted and fixed to the support fixing plate 2, and the upper end is provided with a guide water droplet head 401. The water droplet positioning post 4 passes through the product partition 5. The guide water droplet head 401 also serves as a guide to ensure that it corresponds to each through hole on the stamping, and also connects to the product partition.

[0032] Furthermore, the end height of at least two of the water droplet positioning posts 4 is higher than the end height of the other water droplet positioning posts and the end height of the magnetic steel groove precision positioning plate 3.

[0033] In this embodiment, two highly protruding water droplet hole positioning posts 4 are symmetrically arranged. These water droplet hole positioning posts, which are 1-2 cm higher, can guide and position the punch first. Once these posts are aligned, the remaining ones below will also be aligned and correspond, which can speed up the punch insertion speed and reduce the time required for the punch groove, through hole and positioning plate and positioning post to correspond one by one.

[0034] Furthermore, the product partition 5 consists of at least two parallel vertically arranged partitions, the product partition 5 is an annular partition, and the outer periphery of the product partition 5 is also provided with radial holes 501.

[0035] The product partition 5 has good parallelism, which can ensure the high consistency of the product thickness direction. In this embodiment, three product partitions 5 are arranged in parallel one after another, which can stack four rotor cores in sequence on a set of positioning fixtures, increasing the production capacity by 4 times.

[0036] The radial hole 501 is provided to facilitate clamping the product partition 5 from the outer periphery, so as to load and unload the product partition 5 and avoid clamping the upper and lower end faces of the product partition 5 to avoid affecting the accuracy of the end faces.

[0037] Furthermore, the supporting fixing plate 2 includes a fixing plate base plate and a fixing plate mounting plate located on the fixing plate base plate. The fixing plate base plate is fixedly mounted on the device base plate by hexagonal socket screws. The area of ​​the fixing plate base plate is larger than the area of ​​the fixing plate mounting plate. The fixing plate mounting plate is provided with the magnetic steel groove precision positioning plate and the water droplet hole positioning post. This arrangement increases its bottom support area, which is beneficial for its stable installation on the device base plate 1.

[0038] Furthermore, the dimensional accuracy of the support fixing plate 2 is not less than 0.001mm and the flatness is not less than 0.01mm, the dimensional accuracy of the magnetic steel groove precision positioning plate 3 is not less than 0.002mm and the flatness is not less than 0.01mm, and the dimensional accuracy of the product partition 5 is not less than 0.005mm and the parallelism is not less than 0.01mm.

[0039] Specifically, the support fixing plate 2 is a Cr12MoV alloy plate, which is made of Cr12MoV alloy material after high temperature vacuum quenching and tempering, and then precision machined by a precision surface grinder. The part accuracy can reach 0.001mm and the flatness can reach 0.01mm. Then, the contour holes of the water drop hole positioning post and the magnetic steel groove precision positioning plate are processed by precision slow wire EDM.

[0040] The magnetic steel groove precision positioning plate 3 is an SKD11 alloy plate, which is made of SKD11 alloy material after high temperature vacuum quenching and tempering, and then precision machined by a precision surface grinding machine. The flatness accuracy can reach 0.01mm. Then, the lower end is precision positioned by precision wire EDM, and the machining accuracy can reach ±0.002mm, so that it can be accurately pressed into the contour hole.

[0041] The teardrop hole positioning post 4 is made of D2 alloy punch by external cylindrical grinding on a precision surface grinder, with a machining accuracy of up to 0.001mm. The teardrop hole positioning post is press-fitted into the circular contour hole of the support plate and is also fixed by internal hexagon screws.

[0042] The product partition 5 is a stainless steel plate, which is made of SUS304 stainless steel material and processed by a precision surface grinder. The parallelism accuracy can reach 0.01mm. Then, the shaped holes for the magnet positioning plate and the water drop hole positioning column are processed by precision wire EDM, with an accuracy of ±0.005mm.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision positioning device for integrated machining of multiple rotor cores, comprising a base plate, characterized in that, The device base plate is provided with a support and fixing plate, which is provided with a plurality of vertically arranged magnetic steel slot precision positioning plates. The magnetic steel slot precision positioning plates are adapted to the magnetic steel slot shape of the rotor core laminations to be stacked. The support and fixing plate is also provided with a plurality of water drop hole positioning posts, which are arranged in the inner area of ​​the magnetic steel slot precision positioning plates. The magnetic steel slot precision positioning plates are also provided with a plurality of product partitions, which vertically divide the magnetic steel slot precision positioning plates into multiple installation areas. The product partitions are all arranged parallel to the support and fixing plate.

2. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, The support fixing plate is provided with a contour positioning hole, and the lower end of the magnetic steel groove precision positioning plate is inserted into the contour positioning hole and locked by fasteners.

3. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, The magnet slot precision positioning plates are arranged in pairs, in the form of magnet slot distribution of the rotor core laminations to be stacked.

4. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, The upper end of the magnetic steel groove precision positioning plate is provided with guide ends, and the cross-sectional dimensions of the guide ends decrease from bottom to top.

5. The precision positioning device for integrated machining of multiple rotor cores according to claim 4, characterized in that, The guide end has a trapezoidal structure with rounded corners between its surfaces.

6. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, The lower end of the water droplet positioning post is inserted and fixed to the support plate, and the upper end is provided with a guide water droplet head. The water droplet positioning post passes through the product partition.

7. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, At least two of the water droplet positioning posts have an end height higher than the end height of the remaining water droplet positioning posts and the end height of the magnetic groove precision positioning plate.

8. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, The product partition is at least two arranged in parallel vertically, the product partition is an annular partition, and the outer periphery of the product partition is also provided with radial holes.

9. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, The supporting fixing plate includes a fixing plate base plate and a fixing plate mounting plate located on the fixing plate base plate. The fixing plate base plate is fixedly installed on the device base plate by internal hex screws. The area of ​​the fixing plate base plate is larger than the area of ​​the fixing plate mounting plate. The fixing plate mounting plate is provided with the magnetic steel groove precision positioning plate and the water droplet hole positioning column.

10. The precision positioning device for integrated machining of multiple rotor cores according to claim 1, characterized in that, The dimensional accuracy of the support fixing plate is not less than 0.001mm and the flatness is not less than 0.01mm; the dimensional accuracy of the magnetic steel groove precision positioning plate is not less than 0.002mm and the flatness is not less than 0.01mm; and the dimensional accuracy of the product partition is not less than 0.005mm and the parallelism is not less than 0.01mm.

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