A magnetic steel mounting device for a motor rotor

Abstract

The application provides a motor rotor magnetic steel mounting device and belongs to the technical field of motors. The motor rotor magnetic steel mounting device solves the technical problems of low mounting efficiency and poor mounting stability of the existing magnetic steel mounting device. The middle part of the workbench is provided with a mounting hole, the upper side of the workbench is provided with an inner mold, a feeding plate, a pushing mechanism and a pressing mechanism, the feeding plate is provided with four feeding grooves for conveying magnetic steel, the middle part of the feeding plate is provided with a containing hole for accommodating the inner mold, the outer circumferential surface of the inner mold is provided with at least eight insertion grooves, the lower part of the inner mold is provided with insertion pieces with the same number as the insertion grooves, the upper end of the insertion pieces passes through the mounting hole and extends into the corresponding insertion groove of the inner mold, and the lower part of the workbench is provided with a jacking mechanism and a rotating mechanism. The feeding plate is provided with four feeding grooves for conveying magnetic steel, and the feeding action of four magnetic steels can be completed at the same time each time, so that the working efficiency of the magnetic steel mounting device is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electric machines, and particularly relates to a magnetic steel mounting device for a rotor of an electric machine. BACKGROUND

[0002] Magnetic steel is one of the main components of a rotor of an electric machine. In the process of assembling the rotor of the electric machine, the assembly of the magnetic steel is an important process. Currently, the magnetic steel is assembled manually, and the assembly precision is low, the assembly speed is slow, and the assembly process is prone to safety hazards of workers. Moreover, the manual assembly relies on experience and proficiency, and some beginners are prone to low qualification rate in the assembly process.

[0003] In order to solve the above problems, the application No. 201610024594.9 discloses a rotor core magnetic steel mounting device. The device is provided with two magnetic steel sorting channels. The magnetic steel sheets are conveyed into the magnetic steel sheet insertion slots of the positioning blocks through one of the magnetic steel sorting channels. The other magnetic steel sorting channel first conveys the magnetic steel sheets into the sliding grooves, and then pushes the magnetic steel sheets into the other magnetic steel sheet insertion slots of the positioning blocks through the push plate. Finally, the two magnetic steel sheets are pressed into the rotor core through two insertion knives.

[0004] However, the above-mentioned rotor core magnetic steel mounting device can only press two magnetic steel sheets at a time, and can only be applied to rotors with a small number of magnetic steel sheets. If the number of magnetic steel sheets of the rotor is large, such as more than 16, the assembly of the rotor needs to be completed by pressing 8 times, and the installation efficiency is low. Further, the magnetic steel sheets in the two magnetic steel sorting channels have different moving paths, different moving distances, and different ways and angles of entering the magnetic steel sheet insertion slots. Therefore, the timing of the magnetic steel sheets in the two magnetic steel sorting channels entering the corresponding magnetic steel sheet insertion slots is not uniform, and the overall stability is poor. Moreover, the insertion knives are prone to deformation or deviation after long-time pressing work due to the lack of guidance and support during the downward movement of the insertion knives, which affects the stability of the mounting device. SUMMARY

[0005] The purpose of the present application is to provide a magnetic steel mounting device for a rotor of an electric machine, which has higher installation efficiency and better installation stability.

[0006] The purpose of the present application is achieved as follows:

[0007] The utility model provides a kind of magnet mounting equipment of motor rotor, including workbench, it is characterized by: the middle part of the workbench is equipped with the installation hole that workbench is penetrated from top to bottom, the upper side of the workbench is equipped with inner mould, feeding plate, push mechanism and pressing mechanism, the feeding plate is equipped with four feeding grooves for conveying magnet on it, the middle part of the feeding plate is equipped with the accommodating hole for accommodating inner mould, the accommodating hole is communicated with installation hole, the inner mould is rotatably arranged in accommodating hole, at least 8 insertion slots are provided on the outer circumferential surface of the inner mould, the insertion slot is penetrated from top to bottom, the upper end of the inner mould can be connected with rotor, the lower side of the inner mould is equipped with the same number of insertion sheets as insertion slot, the upper end of the insertion sheet passes through installation hole and extends into corresponding insertion slot in the inner mould, and the push mechanism can push the magnet in the feeding groove into the insertion slot of the inner mould;The lower side of the workbench is equipped with jacking mechanism and rotating mechanism, the jacking mechanism can drive the insertion sheet to move upwards and top the magnet in the inner mould into rotor, and the driving mechanism can drive the insertion sheet and the inner mould to rotate.

[0008] The feeding plate of the utility model is provided with four feeding grooves for conveying magnet, and the feeding action of four magnets can be completed simultaneously each time, which greatly improves the working efficiency of the magnet mounting equipment;The rotating mechanism, the insertion sheet and the inner mould cooperate to drive the inner mould to rotate;The jacking mechanism, the insertion sheet, the inner mould and the pressing mechanism can quickly and conveniently push the magnet in the inner mould into the rotor, and the magnet is prevented from extending out of the upper end of the rotor, so that the installation of the magnet is more convenient, fast and stable;Furthermore, since the upper end of the insertion sheet extends into the insertion slot of the inner mould, the slot wall of the insertion slot can support the insertion sheet to some extent, so that the insertion sheet is prevented from deforming or deviating during the jacking process.

[0009] In the above-mentioned magnet mounting equipment of motor, the inner mould is in cylindrical shape, and the insertion slot has 20 insertion slots.

[0010] The above-mentioned two adjacent insertion slots form a V-shaped group, and ten groups are arranged in a ring array with the central axis of the inner mould as the center;The above-mentioned insertion sheet also has 20 insertion sheets relatively;The ring array arrangement makes the insertion slot have symmetry, facilitates simultaneous insertion of multiple magnets, and is beneficial to improve the assembly efficiency.

[0011] In the above-mentioned magnet mounting equipment of motor, the upper end of the inner mould is provided with a connecting piece, the connecting piece is provided with a long strip-shaped through hole corresponding to the insertion slot, the upper end surface of the inner mould is provided with a plurality of positioning grooves arranged at intervals in the circumferential direction, the lower end surface of the connecting piece is provided with a positioning protrusion matched with the positioning groove, the middle part of the upper end surface of the inner mould is provided with an insertion groove, the lower end surface of the connecting piece is provided with an insertion protrusion fixedly inserted into the insertion groove, and the middle part of the upper end surface of the connecting piece is provided with a connecting column, and the upper end of the connecting column is provided with a positioning notch matched with the rotor.

[0012] The inner mold, the connecting piece, the plug-in groove, the plug-in protrusion and the connecting column are coaxially arranged; the connecting piece is designed to facilitate the connection of the inner mold and the rotor; the design of the positioning groove on the inner mold and the positioning protrusion on the connecting piece not only facilitates the installation of the connecting piece, but also enables the through hole on the connecting piece to be aligned with the plug-in groove on the inner mold, and enables the connection of the inner mold and the connecting piece to be more stable and firm, which is conducive to improving the stability of the magnetic steel installation equipment; the design of the positioning notch on the connecting column facilitates the connection of the connecting piece and the rotor; as long as the rotor is plugged onto the connecting column so that the corresponding protrusion on the rotor is matched with the positioning notch, the assembly of the rotor is completed; the groove on the rotor for accommodating the magnetic steel is one-to-one corresponding to the through hole, and the assembly is more convenient and fast, which is conducive to improving the installation efficiency of the magnetic steel.

[0013] In the above-mentioned magnetic steel installation equipment of a motor, the inner end of the feeding groove is provided with a feeding groove and a pushing groove, the feeding groove is communicated with the accommodating hole, the inner end of the pushing plate of the pushing mechanism is inserted into the pushing groove, the pushing plate can move inward and push the magnetic steel in the feeding groove into the plug-in groove of the inner mold, and the feeding plate and the pushing plate are made of non-ferromagnetic material; the pushing groove is fixed with a limiting block made of ferromagnetic material, and the outer end surface of the limiting block and the groove wall of the pushing groove form a pushing gap for the pushing plate.

[0014] The feeding plate and the pushing plate are made of non-ferromagnetic material, which can avoid the magnetic steel from being adsorbed on the feeding plate and unable to move, so that the magnetic steel can move more smoothly along the feeding groove; the limiting block is made of magnetic material, which can attract the magnetic steel and make the magnetic steel automatically move to the limiting block without external force, which is conducive to simplifying the structure and improving the assembly efficiency; the above-mentioned pushing gap, feeding groove and plug-in groove to be fed are located on the same straight line, and the above-mentioned design facilitates the pushing plate to smoothly push the magnetic steel from the feeding groove into the plug-in groove of the inner mold.

[0015] In the above-mentioned magnetic steel installation equipment of a motor, the outer end surface of the limiting block is provided with a baffle groove, and the baffle groove is provided with a baffle made of non-ferromagnetic material; the baffle is arranged opposite to the feeding groove and can contact the innermost magnetic steel.

[0016] The baffle made of non-ferromagnetic material can reduce the attraction between the magnetic steel and the limiting block, facilitate the pushing plate to push the magnetic steel away from the limiting block, and make the feeding more smooth, which is conducive to improving the installation efficiency of the magnetic steel.

[0017] In the above-mentioned magnetic steel installation equipment of a motor, the feeding groove includes a straight line segment arranged transversely and a bending segment with the inner end bent outward, the included angle between the straight line segment and the bending segment is obtuse, the length of the straight line segment is greater than the length of the bending segment, the feeding groove, the pushing groove and the limiting block are arranged at the inner end of the bending segment; adjacent two feeding grooves are arranged symmetrically left and right or symmetrically front and back, and adjacent two limiting blocks are arranged symmetrically left and right or symmetrically front and back.

[0018] The design of the straight section facilitates the placement of magnetic steels that are weakly attracted together by magnetic force into the straight section, facilitating feeding. The design of the bending section enables the magnetic steels to be parallel to the feeding groove to be inserted, facilitating the pushing of the magnetic steels into the corresponding inner mold insertion groove by the pushing plate. The obtuse angle between the straight section and the bending section enables smoother movement of the magnetic steels along the feeding groove. The structure of the feeding groove enables the symmetric installation of the fed magnetic steels on the inner mold, with four magnetic steels installed at one time, which makes the installation positions of the magnetic steels more regular and is conducive to improving the feeding efficiency of the magnetic steels. The structure of the limiting block enables the symmetric installation of the fed magnetic steels on the inner mold, with four magnetic steels installed at one time. The number of the corresponding inner mold insertion grooves is also a multiple of four, with four as a group. After the completion of one feeding by the feeding mechanism, only a certain angle of the inner mold needs to be rotated, and then the feeding action of four magnetic steels is completed again until all the insertion grooves of the inner mold are installed with magnetic steels. This design enables the installation positions of the magnetic steels to be more regular and is conducive to improving the feeding efficiency of the magnetic steels.

[0019] In the above-mentioned motor magnetic steel installation device, the width of the feeding groove is greater than the width of the magnetic steel, the outer groove wall of the bending section is fixed with a guide plate, the thickness of the guide plate gradually increases along the moving direction of the magnetic steel and forms an inclined surface, and the minimum distance between the guide plate and the inner groove wall of the bending section is greater than the width of the magnetic steel. The outer end of the inclined surface is in abutment with the outer groove wall of the bending section, and the inclined surface and the inner side surface of the guide plate have a circular-arc-shaped connecting portion.

[0020] The guide plate enables the inner side of the magnetic steel in the feeding groove to be tightly attached to the inner groove wall of the bending section and enables the magnetic steels to be arranged more regularly, which facilitates the pushing of the innermost magnetic steel into the feeding groove by the pushing plate and is conducive to improving the stability of the feeding mechanism during operation. The abutment of the outer end of the inclined surface with the outer groove wall of the bending section avoids the outer end of the guide plate from clamping the magnetic steel, and the circular-arc-shaped connecting portion avoids the clamping of the magnetic steel when passing through the connecting portion, which enables the movement of the magnetic steel in the bending section to be smoother and is conducive to improving the stability of the feeding mechanism during operation.

[0021] In the above-mentioned motor magnetic steel installation device, the pushing mechanism includes a pushing cylinder, a cylinder support, a pushing plate, and a pushing connecting seat. The cylinder support is fixedly connected with the upper side of the workbench. The pushing cylinder is fixedly connected with the cylinder support. The driving shaft of the pushing cylinder is fixedly connected with the pushing plate through the pushing connecting seat. The outer end of the pushing connecting seat is sleeved on the driving shaft and is fixedly connected with the driving shaft. The inner end of the pushing connecting seat is provided with a connecting step. The side surface of the pushing plate is attached to the step surface of the connecting step and is fixedly connected.

[0022] The design of the cylinder support can adjust the position of the pushing cylinder by adjusting the thickness of the cylinder support base and the position where the pushing cylinder is connected to the cylinder support, so that the driving shaft of the pushing cylinder can be parallel to the central axis of the pushing plate; the design of the pushing connecting seat can increase the contact area with the driving shaft and the pushing plate, so that the connection between the driving shaft and the pushing plate is more stable and firm, and deviation during work is avoided, which is beneficial to improve the stability of the feeding mechanism.

[0023] In the motor magnetic steel installation equipment, the pressing mechanism includes a pressing base, connecting rods, a pressing cylinder and a pressing block. The pressing base is arranged above the inner mold. The pressing base is connected to the workbench through four vertically arranged connecting rods. The connecting rods are arranged outside the feeding plate. The pressing cylinder is fixedly connected to the pressing base. The driving shaft of the pressing cylinder is connected to the pressing block. The pressing cylinder can drive the pressing block to move downward and make the lower side of the pressing block abut against the upper end surface of the rotor on the inner mold.

[0024] The four connecting rods can stably fix the pressing base above the inner mold. The design of the pressing block can limit the upper end surface of the rotor, so that the magnetic steel does not protrude or fall off from the upper end of the rotor when the magnetic steel is lifted by the inserting plate, which is beneficial to improve the stability of the magnetic steel installation equipment.

[0025] In the motor magnetic steel installation equipment, the pressing mechanism includes a pressing plate. Four guide rods are arranged between the pressing base and the workbench. The guide rods are arranged outside the feeding plate. The guide rods pass through the pressing plate. The pressing plate can slide up and down relative to the guide rods. The driving shaft of the pressing cylinder is fixedly connected to the pressing plate. The pressing block is in a cylindrical shape. The pressing block is fixedly connected to the pressing plate.

[0026] The design of the pressing plate and the guide rods can make the pressing block move up and down more stably, so that the pressing block does not deviate during movement, which is beneficial to improve the stability of the magnetic steel installation equipment.

[0027] In the motor magnetic steel installation equipment, the rotating mechanism includes a rotating motor, a driving wheel, a driven wheel and a synchronous belt. The rotating motor is fixedly arranged below the workbench. The driving shaft of the rotating motor is fixedly connected to the driving wheel. The driving wheel drives the driven wheel to rotate through the synchronous belt. The driven wheel is sleeved on the inserting plate and is fixedly connected to the inserting plate in the circumferential direction and can move in the axial direction. The lower side of the driven wheel is rotatably connected to the workbench. The outer periphery of the driven wheel is provided with driven teeth. The driven teeth are engaged with the synchronous belt. The inner periphery of the driven wheel is provided with inner protruding teeth which can be clamped between two adjacent groups of inserting plates. The inner protruding teeth are engaged with the inserting plates. The lower ends of all the inserting plates are fixedly connected to the inserting seat. The lower end of the inserting seat is rotatably connected to the lifting mechanism.

[0028] The design of the driven teeth on the outer circumferential surface of the driven wheel facilitates connection with the synchronous belt of the rotating mechanism, and the design of the inner convex teeth enables the driven wheel and the insert piece group to rotate synchronously, thereby enabling the rotating mechanism to drive the insert piece to rotate through the driven ring, so that the angle of the inner mold is adjusted, the all insert slots of the inner mold are conveniently loaded with magnetic steels, and the installation efficiency of the magnetic steels is improved.

[0029] In the magnetic steel installation equipment, the jacking mechanism comprises a jacking base, a jacking motor, a jacking sleeve and a jacking screw, the jacking base is fixedly connected with the workbench, the jacking motor is fixedly connected below the jacking base, the jacking screw penetrates through the jacking base and is fixedly connected with the driving shaft of the jacking motor through a shaft coupling, the jacking screw extends into the jacking sleeve and is threadedly connected with a nut in the jacking sleeve, the nut is fixedly connected with the jacking sleeve, and the upper end of the jacking sleeve is rotatably connected with the insert piece seat.

[0030] The jacking screw and the jacking sleeve are used to connect the jacking motor and the insert piece seat, the rotary motion of the screw is converted into the linear motion of the jacking sleeve, the horizontal position of the jacking sleeve is limited, the jacking action is more stable and accurate.

[0031] The jacking mechanism can also be a pneumatic cylinder, and the driving rod of the pneumatic cylinder is rotatably connected with the insert piece seat.

[0032] The working principle of the magnetic steel installation equipment is as follows: the magnetic steels in the feeding grooves are automatically moved along the feeding grooves to the limiting blocks under the action of magnetic force, and the innermost magnetic steels are tightly attached to the blocking pieces of the limiting plates, then the four push plates are driven to move inward by the four push cylinders, the magnetic steels in the four feeding grooves are pushed into the corresponding insert slots of the inner mold, then the insert piece is driven to stepwise rotate the inner mold by the rotating motor, the angle of each rotation is matched with the number of insert slots, the empty insert slots are rotated to positions opposite to the push plates, then the push plates continue to work to push the magnetic steels into the empty insert slots, until all the empty insert slots are inserted with the magnetic steels, finally, the jacking screw is driven to rotate by the jacking motor, the rotation of the jacking screw drives the jacking sleeve screwed therewith to move upward, the jacking sleeve pushes the insert piece to move upward to push the magnetic steels in the insert slots of the inner mold into the corresponding slots of the rotor, meanwhile, the pressing block is driven to move downward by the pressing cylinder and abuts against the upper end surface of the rotor, so that the magnetic steels are prevented from being pushed out of the upper end surface of the rotor by the insert piece, after the bending assembly, each component returns to the original position, and the assembly of the magnetic steels of the rotor is completed.

[0033] The magnetic steel installation equipment has the following prominent and beneficial technical effects compared with the prior art:

[0034] The feeding plate has four feeding grooves for conveying the magnetic steels, and the feeding action of four magnetic steels can be simultaneously completed each time, so that the working efficiency of the magnetic steel installation equipment is greatly improved. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 This is a cross-sectional view of the present invention.

[0037] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0038] Figure 4 This is a schematic diagram of the feeding plate and pushing mechanism of the present invention.

[0039] Figure 5 This is a schematic diagram of the feeding plate of the present invention.

[0040] Figure 6 This is a schematic diagram of the pressing mechanism of the present invention.

[0041] Figure 7 This is a schematic diagram of the feeding mechanism of the present invention.

[0042] Figure 8 This is a schematic diagram of the rotating mechanism and lifting mechanism of the present invention.

[0043] Figure 9 This is a schematic diagram of the insert and driven wheel of the present invention.

[0044] Figure 10 This is a schematic diagram of the structure of the inner mold of the present invention.

[0045] Figure 11 This is a structural schematic diagram of the connector of the present invention.

[0046] Figure 12 This is a schematic diagram of the driven wheel of the present invention.

[0047] Figure 13 This is an exploded structural diagram of the feed trough and the limiting block of the present invention.

[0048] Figure 14 This is a schematic diagram of the structure of the guide plate of the present invention.

[0049] In the figure, 1, workbench; 11, mounting hole; 2, inner mold; 21, insertion slot; 22, positioning slot; 23, insertion groove; 3, insertion piece; 31, insertion piece seat; 4, feeding plate; 41, feeding slot; 411, straight section; 412, bent section; 42, feeding groove; 43, pushing groove; 44, pushing gap; 45, limiting block; 451, baffle slot; 46, baffle; 47, guide plate; 471, inclined surface; 472, connecting part; 48, accommodating hole; 5, connecting piece; 51, through hole; 52, positioning protrusion; 53, insertion protrusion; 54, connecting column; 55, positioning notch; 6, pushing mechanism; 61, pushing cylinder; 62, cylinder support; 63, pushing plate; 64, pushing connecting seat; 641, connecting step; 642, step surface; 7, pressing mechanism; 71, pressing base; 72, connecting rod; 73, pressing cylinder; 74, pressing block; 75, pressing plate; 76, guide rod; 8, rotating mechanism; 81, rotating motor; 82, driving wheel; 83, driven wheel; 84, synchronous belt; 9, jacking mechanism; 91, jacking base; 92, jacking motor; 93, jacking sleeve; 94, jacking lead screw; 95, shaft coupling. DETAILED DESCRIPTION

[0050] The application will be further described below in connection with specific embodiments with reference to the accompanying drawings, in which Figure 1 -14:

[0051] The magnet mounting device of the motor rotor comprises a workbench 1, a mounting hole 11 penetrating the workbench 1 from top to bottom is arranged in the middle of the workbench 1, an inner mold 2, a feeding plate 4, a pushing mechanism 6 and a pressing mechanism 7 are arranged on the upper side of the workbench 1, four feeding grooves 41 for conveying magnets are arranged on the feeding plate 4, a containing hole 48 for accommodating the inner mold 2 is arranged in the middle of the feeding plate 4, the containing hole 48 is communicated with the mounting hole 11, the inner mold 2 is rotatably arranged in the containing hole 48, at least eight insertion grooves 21 are arranged on the outer circumferential surface of the inner mold 2, the insertion grooves 21 penetrate the inner mold 2 from top to bottom, the upper end of the inner mold 2 can be connected with the rotor, the lower side of the inner mold 2 is provided with insertion pieces 3 which are the same in number as the insertion grooves 21, the upper end of each insertion piece 3 penetrates the mounting hole 11 and extends into the corresponding insertion groove 21 in the inner mold 2, and the pushing mechanism 6 can push the magnets in the feeding grooves 41 into the insertion grooves 21 in the inner mold 2; a jacking mechanism 9 and a rotating mechanism 8 are arranged below the workbench 1, the jacking mechanism 9 can drive the insertion pieces 3 to move upward and jack the magnets in the inner mold 2 into the rotor, and the driving mechanism can drive the insertion pieces 3 and the inner mold 2 to rotate; the inner mold 2 is in a cylindrical shape, there are twenty insertion grooves 21, and adjacent two insertion grooves 21 form a V-shaped type and are arranged in a ring array with the central axis of the inner mold 2 as the center. The feeding plate 4 of the magnet mounting device is provided with four feeding grooves 41 for conveying magnets, four magnet feeding actions can be simultaneously completed at a time, and the working efficiency of the magnet mounting device is greatly improved; the rotating mechanism 8, the insertion pieces 3 and the inner mold 2 cooperate to drive the inner mold 2 to rotate; the jacking mechanism 9, the insertion pieces 3, the inner mold 2 and the pressing mechanism 7 can quickly and conveniently push the magnets in the inner mold 2 into the rotor, and the magnets are prevented from extending out of the upper end of the rotor, so that the magnet mounting is more convenient, fast and stable; further, the upper end of the insertion piece 3 originally extends into the insertion groove 21 in the inner mold 2, and the groove wall of the insertion groove 21 can support the insertion piece 3 to a certain extent, so that the insertion piece 3 is prevented from deforming or deviating during the jacking process; the above-mentioned adjacent two insertion grooves 21 form a V-shaped type and form a group, and ten groups are arranged in a ring array with the central axis of the inner mold 2 as the center; the above-mentioned insertion pieces 3 are also relatively twenty; the ring array arrangement makes the insertion grooves 21 have symmetry, facilitates simultaneous insertion of multiple magnets, and is beneficial to improving the assembly efficiency.

[0052] Further, the upper end of the inner mold 2 is provided with a connecting piece 5, the connecting piece 5 is provided with a long strip-shaped through hole 51 corresponding to the slot 21, the upper end surface of the inner mold 2 is provided with a plurality of positioning grooves 22 arranged at intervals in the circumferential direction, the lower end surface of the connecting piece 5 is provided with a positioning protrusion 52 matched with the positioning groove 22, the middle part of the upper end surface of the inner mold 2 is provided with a plug-in groove 23, the lower end surface of the connecting piece 5 is provided with a plug-in protrusion 53 fixedly plugged with the plug-in groove 23, the middle part of the upper end surface of the connecting piece 5 is provided with a connecting column 54, and the upper end of the connecting column 54 is provided with a positioning notch 55 matched with the rotor. The inner mold 2, the connecting piece 5, the plug-in groove 23, the plug-in protrusion 53 and the connecting column 54 are coaxially arranged; the design of the connecting piece 5 facilitates the connection of the inner mold 2 and the rotor, wherein the design of the positioning groove 22 on the inner mold 2 and the positioning protrusion 52 on the connecting piece 5 not only facilitates the installation of the connecting piece 5, but also enables the through hole 51 on the connecting piece 5 to be matched with the slot 21 on the inner mold 2, and enables the connection of the inner mold 2 and the connecting piece 5 to be more stable and firm, which is conducive to improving the stability of the magnetic steel mounting device; the design of the positioning notch 55 on the connecting column 54 facilitates the connection of the connecting piece 5 and the rotor, as long as the rotor is plugged on the connecting column 54 to enable the corresponding protrusion on the rotor to be matched with the positioning notch 55, the assembly of the rotor is completed, the slot on the rotor for accommodating the magnetic steel is matched with the through hole 51 one by one, the assembly is more convenient and fast, and the installation efficiency of the magnetic steel is improved.

[0053] Further, the inner end of the feeding groove 41 is provided with a feeding groove 42 and a pushing groove 43, the feeding groove 42 is communicated with the accommodating hole 48, the inner end of the pushing plate 63 of the pushing mechanism 6 is inserted into the pushing groove 43, the pushing plate 63 can move inward and push the magnetic steel in the feeding groove 41 from the feeding groove 42 into the slot 21 of the inner mold 2, and the feeding plate 4 and the pushing plate 63 are both made of non-ferromagnetic material; the pushing groove 43 is fixedly provided with a limiting block 45 made of ferromagnetic material, a pushing gap 44 for the pushing plate 63 to pass through is formed between the outer end surface of the limiting block 45 and the groove wall of the pushing groove 43; the outer end surface of the limiting block 45 is provided with a baffle groove 451, and the baffle groove 451 is provided with a baffle 46 made of non-ferromagnetic material, the baffle 46 is arranged opposite to the feeding groove 41 and can contact the innermost magnetic steel. The feeding plate 4 and the pushing plate 63 are both made of non-ferromagnetic material, which can avoid the magnetic steel from being adsorbed on the feeding plate 4 and unable to move, so that the magnetic steel can move more smoothly along the feeding groove 41, the limiting block 45 is made of magnetic material, which can attract the magnetic steel and make the magnetic steel automatically move to the limiting block 45 without external force, which is conducive to simplifying the structure and improving the assembly efficiency; the above-mentioned pushing gap 44, feeding groove 42 and slot 21 to be fed are located on the same straight line, and the above-mentioned design facilitates the pushing plate to smoothly push the magnetic steel from the feeding groove 41 into the slot 21 of the inner mold 2; the above-mentioned baffle 46 made of non-ferromagnetic material can reduce the attraction between the magnetic steel and the limiting block 45, facilitate the pushing plate to push the magnetic steel away from the limiting block 45, and make the feeding more smooth, which is conducive to improving the installation efficiency of the magnetic steel.

[0054] Further, the feeding groove 41 comprises a straight section 411 arranged transversely and a bending section 412 which is bent outwardly at the inner end, the included angle between the straight section 411 and the bending section 412 is obtuse, the length of the straight section 411 is greater than the length of the bending section 412, the feeding groove 42, the pushing groove 43 and the limiting block 45 are arranged at the inner end of the bending section 412; two adjacent feeding grooves 41 are arranged symmetrically left and right or symmetrically front and back, two adjacent limiting blocks 45 are arranged symmetrically left and right or symmetrically front and back; the width of the feeding groove 41 is greater than the width of the magnetic steel, a guide plate 47 is fixed on the outer groove wall of the bending section 412, the thickness of the guide plate 47 gradually increases along the moving direction of the magnetic steel and forms an inclined surface 471, the minimum distance between the guide plate 47 and the inner groove wall of the bending section 412 is greater than the width of the magnetic steel; the outer end of the inclined surface 471 abuts against the outer groove wall of the bending section 412, and the inclined surface 471 and the inner side surface of the guide plate 47 have an arc-shaped connecting portion 472. The design of the straight section 411 facilitates the placement of the magnetic steels which are adsorbed together by magnetic force into the straight section 411, facilitating feeding, the design of the bending section 412 enables the magnetic steels to be parallel to the feeding groove 42 to be inserted, facilitating the pushing of the magnetic steels into the corresponding inner mold 2 insertion slot 21 by the pushing plate 63; the obtuse angle between the straight section 411 and the bending section 412 enables the magnetic steels to move more smoothly along the feeding groove 41; the structure of the feeding groove 41 enables the symmetric installation of the magnetic steels after feeding on the inner mold 2, enabling the installation of four magnetic steels at one time, which makes the installation positions of the magnetic steels more regular, and is conducive to improving the feeding efficiency of the magnetic steels; the structure of the limiting block 45 enables the symmetric installation of the magnetic steels after feeding on the inner mold 2, enabling the installation of four magnetic steels at one time, and the number of the insertion slots 21 on the corresponding inner mold 2 is also a multiple of four, with four as a group, after the completion of feeding by the feeding mechanism once, the inner mold 2 only needs to be rotated by a certain angle, and then the feeding action of four magnetic steels is completed again, until all the insertion slots 21 on the inner mold 2 are installed with magnetic steels, which enables the installation positions of the magnetic steels to be more regular, and is conducive to improving the feeding efficiency of the magnetic steels; the guide plate 47 enables the inner side of the magnetic steels in the feeding groove 41 to be close to the inner groove wall of the bending section 412, and enables the magnetic steels to be arranged more neatly, facilitating the pushing of the innermost magnetic steels into the feeding groove 42 by the pushing plate, and is conducive to improving the stability of the feeding mechanism during operation; the abutment of the outer end of the inclined surface 471 against the outer groove wall of the bending section 412 avoids the outer end of the guide plate 47 from clamping the magnetic steels, and the arc-shaped connecting portion 472 can avoid the clamping of the magnetic steels when passing through the portion, enabling the movement of the magnetic steels in the bending portion to be more smooth, and is conducive to improving the stability of the feeding mechanism during operation.

[0055] Further, the pushing mechanism 6 comprises a pushing cylinder 61, a cylinder support 62, a pushing plate 63 and a pushing connecting seat 64. The cylinder support 62 is fixedly connected with the upper side of the workbench 1. The pushing cylinder 61 is fixedly connected with the cylinder support 62. The driving shaft of the pushing cylinder 61 is fixedly connected with the pushing plate through the pushing connecting seat 64. The outer end of the pushing connecting seat 64 is sleeved on the driving shaft and is fixedly connected with the driving shaft. The inner end of the pushing connecting seat 64 is provided with a connecting step 641. The side surface of the pushing plate is attached to the step surface 642 of the connecting step 641 and is fixedly connected. The design of the cylinder support 62 can adjust the position of the pushing cylinder 61 by adjusting the thickness of the base of the cylinder support 62 and the position where the pushing cylinder 61 is connected with the cylinder support 62. The driving shaft of the pushing cylinder 61 can be parallel to the central axis of the pushing plate. The design of the pushing connecting seat 64 can increase the contact area with the driving shaft and the pushing plate, so that the connection between the driving shaft and the pushing plate is more stable and firm, and deviation during work is avoided, which is beneficial to improve the stability of the upper feeding mechanism.

[0056] Further, the pressing mechanism 7 comprises a pressing base 71, a connecting rod 72, a pressing cylinder 73 and a pressing block 74. The pressing base 71 is arranged directly above the inner mold 2. The pressing base 71 is connected with the workbench 1 through four vertically arranged connecting rods 72. The connecting rods 72 are arranged outside the upper feeding plate 4. The pressing cylinder 73 is fixedly connected with the pressing base 71. The driving shaft of the pressing cylinder 73 is connected with the pressing block 74. The pressing cylinder 73 can drive the pressing block 74 to move downward and make the lower side of the pressing block 74 abut against the upper end surface of the rotor located on the inner mold 2. The pressing mechanism 7 comprises a pressing plate 75. Four guide rods 76 are arranged between the pressing base 71 and the workbench 1. The guide rods 76 are located outside the upper feeding plate 4. The guide rods 76 pass through the pressing plate 75. The pressing plate 75 can slide up and down relative to the guide rods 76. The driving shaft of the pressing cylinder 73 is fixedly connected with the pressing plate 75. The pressing block 74 is in a cylindrical shape. The pressing block 74 is fixedly connected with the pressing plate 75. The above-mentioned connecting rod 72 has four connecting rods 72. The design of the connecting rod 72 can make the pressing base 71 more stably fixed above the inner mold 2. The design of the pressing block 74 can limit the upper end surface of the rotor, so that the magnetic steel does not protrude or fall out of the upper end of the rotor when the plate pushes up the magnetic steel, which is beneficial to improve the stability of the magnetic steel installation equipment. The design of the pressing plate 75 and the guide rod 76 can make the upward and downward movement of the pressing block 74 more stable, so that the pressing block 74 does not deviate during movement, which is beneficial to improve the stability of the magnetic steel installation equipment.

[0057] Further, the rotating mechanism 8 comprises a rotating motor 81, a driving wheel 82, a driven wheel 83 and a synchronous belt 84, the rotating motor 81 is fixed below the workbench 1, the driving shaft of the rotating motor 81 is fixedly connected with the driving wheel 82, the driving wheel 82 drives the driven wheel 83 to rotate through the synchronous belt 84, the driven wheel 83 is sleeved on the insert piece 3 and is fixedly connected with the insert piece 3 in the circumferential direction and can move in the axial direction, the driven wheel 83 is rotatably connected with the lower side of the workbench 1, the outer circumferential surface of the driven wheel 83 is provided with a driven tooth, the driven tooth is engaged with the synchronous belt 84, the inner circumferential surface of the driven wheel 83 is provided with an inner convex tooth capable of being clamped between two adjacent groups of insert pieces 3, and the inner convex tooth is engaged with the insert piece 3, the lower ends of all the insert pieces 3 are fixedly connected with the insert piece seat 31, and the lower end of the insert piece seat 31 is rotatably connected with the jacking mechanism 9. The design of the driven tooth on the outer circumferential surface of the driven wheel 83 facilitates the connection with the synchronous belt 84 of the rotating mechanism 8, the design of the inner convex tooth enables the driven wheel 83 and the insert piece 3 group to rotate synchronously, so that the rotating mechanism 8 can drive the insert piece 3 to rotate through the driven ring, thereby adjusting the angle of the inner mold 2, facilitating the loading of all the insert slots 21 of the inner mold 2 into the magnetic steel, and being beneficial to improving the installation efficiency of the magnetic steel, and the rotating motor 81 is a stepping motor, and the transmission mode through the synchronous belt 84 is more stable and simple.

[0058] Further, the jacking mechanism 9 comprises a jacking base 91, a jacking motor 92, a jacking sleeve 93 and a jacking screw 94, the jacking base 91 is fixedly connected with the workbench 1, the jacking motor 92 is fixedly connected below the jacking base 91, the jacking screw 94 penetrates through the jacking base 91 and is fixedly connected with the driving shaft of the jacking motor 92 through a shaft coupling 95, the jacking screw 94 extends into the jacking sleeve 93 and is threadedly connected with a nut in the jacking sleeve 93, the nut is fixedly connected with the jacking sleeve 93, and the upper end of the jacking sleeve 93 is rotatably connected with the insert piece seat 31. The jacking screw and the jacking sleeve 93 are used to connect the jacking motor 92 and the insert piece seat 31, the rotary motion of the screw is converted into the linear motion of the jacking sleeve 93, the horizontal position of the jacking sleeve 93 can be limited, the jacking action is more stable and accurate, and the jacking mechanism 9 can also be a pneumatic cylinder, and the driving rod of the pneumatic cylinder is rotatably connected with the insert piece seat 31.

[0059] The above embodiments are only the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A magnetic steel mounting device for a motor rotor, comprising a workbench (1), characterized in that: The middle part of the workbench (1) is provided with a mounting hole (11) penetrating the workbench (1) from top to bottom, the upper side of the workbench (1) is provided with an inner mold (2), a feeding plate (4), a pushing mechanism (6) and a pressing mechanism (7), the feeding plate (4) is provided with four feeding grooves (41) for conveying magnetic steel, the middle part of the feeding plate (4) is provided with a containing hole (48) for accommodating the inner mold (2), the containing hole (48) is communicated with the mounting hole (11), the inner mold (2) is rotatably arranged in the containing hole (48), the outer circumferential surface of the inner mold (2) is provided with at least eight insertion grooves (21), the insertion grooves (21) penetrate the inner mold (2) from top to bottom, the upper end of the inner mold (2) can be connected with a rotor, the lower part of the inner mold (2) is provided with insertion pieces (3) which are same in number with the insertion grooves (21), the upper end of the insertion piece (3) penetrates the mounting hole (11) and extends into the corresponding insertion groove (21) in the inner mold (2), the pushing mechanism (6) can push the magnetic steel in the feeding groove (41) into the insertion groove (21) of the inner mold (2); the lower part of the workbench (1) is provided with a jacking mechanism (9) and a rotating mechanism (8), the jacking mechanism (9) can drive the insertion piece (3) to move upward and top the magnetic steel in the inner mold (2) into the rotor, the rotating mechanism (8) can drive the insertion piece (3) and the inner mold (2) to rotate.

2. The magnetic steel mounting apparatus of a motor rotor according to claim 1, characterized by: The inner mold (2) is in a cylindrical shape, the insertion grooves (21) are twenty in number, two adjacent insertion grooves (21) form a "V" shape and are arranged in a ring array with the central axis of the inner mold (2) as the center, the upper end of the inner mold (2) is provided with a connecting piece (5), the connecting piece (5) is provided with a long strip-shaped through hole (51) corresponding to the insertion grooves (21) one by one, the upper end surface of the inner mold (2) is provided with a plurality of positioning grooves (22) arranged at intervals in the circumferential direction, the lower end surface of the connecting piece (5) is provided with a positioning protrusion (52) matched with the positioning grooves (22), the middle part of the upper end surface of the inner mold (2) is provided with an insertion groove (23), the lower end surface of the connecting piece (5) is provided with an insertion protrusion (53) inserted and fixed with the insertion groove (23), the middle part of the upper end surface of the connecting piece (5) is provided with a connecting column (54), the upper end of the connecting column (54) is provided with a positioning notch (55) matched with the rotor.

3. The magnetic steel mounting apparatus of a motor rotor according to claim 1, characterized by: The inner end of the feeding groove (41) is provided with a feeding groove (42) and a pushing groove (43), the feeding groove (42) is communicated with the accommodating hole (48), the inner end of the pushing plate (63) of the pushing mechanism (6) is inserted into the pushing groove (43), the pushing plate (63) can move inward and push the magnetic steel in the feeding groove (42) into the insertion groove (21) of the inner mold (2), the feeding plate (4) and the pushing plate (63) are both made of non-ferromagnetic material; the pushing groove (43) is fixed with a limiting block (45) made of ferromagnetic material, the outer end surface of the limiting block (45) and the groove wall of the pushing groove (43) form a pushing gap (44) for the pushing plate (63) to pass through; the outer end surface of the limiting block (45) is provided with a baffle groove (451), the baffle groove (451) is provided with a baffle (46) made of non-ferromagnetic material, the baffle (46) is arranged opposite to the feeding groove (41) and can contact the innermost magnetic steel.

4. A magnet mounting apparatus for a rotor of an electric machine according to claim 3, characterized in that: The feeding groove (41) comprises a straight section (411) arranged transversely and a bending section (412) bent outward at the inner end, the included angle between the straight section (411) and the bending section (412) is obtuse, the length of the straight section (411) is greater than the length of the bending section (412), the feeding groove (42), the pushing groove (43) and the limiting block (45) are all arranged at the inner end of the bending section (412); two adjacent feeding grooves (41) are arranged symmetrically left and right or symmetrically front and back, two adjacent limiting blocks (45) are arranged symmetrically left and right or symmetrically front and back.

5. A magnet mounting apparatus for a rotor of an electric machine according to claim 4, characterized in that: The width of the feeding groove (41) is greater than the width of the magnetic steel, the outer groove wall of the bending section (412) is fixed with a guide plate (47), the thickness of the guide plate (47) gradually increases along the moving direction of the magnetic steel and forms an inclined surface (471), the minimum distance between the guide plate (47) and the inner groove wall of the bending section (412) is greater than the width of the magnetic steel; the outer end of the inclined surface (471) abuts against the outer groove wall of the bending section (412), the inclined surface (471) and the inner side surface of the guide plate (47) have a circular-arc-shaped connecting portion (472).

6. The magnetic steel mounting apparatus of any one of claims 1-5, wherein: The pushing mechanism (6) comprises a pushing air cylinder (61), a cylinder support (62), a pushing plate (63) and a pushing connecting seat (64), the cylinder support (62) is fixedly connected with the upper side of the workbench (1), the pushing air cylinder (61) is fixedly connected with the cylinder support (62), the driving shaft of the pushing air cylinder (61) is fixedly connected with the pushing plate through the pushing connecting seat (64), the outer end of the pushing connecting seat (64) is sleeved on the driving shaft and is fixedly connected with the driving shaft, the inner end of the pushing connecting seat (64) is provided with a connecting step (641), the side surface of the pushing plate is attached to the step surface (642) of the connecting step (641) and is fixedly connected.

7. The magnetic steel mounting apparatus of any one of claims 1-5, wherein: The pressing mechanism (7) comprises a pressing base (71), connecting rods (72), a pressing cylinder (73) and a pressing block (74), the pressing base (71) is arranged above the inner mold (2), the pressing base (71) is connected with the workbench (1) through four vertically arranged connecting rods (72), the connecting rods (72) are arranged outside the feeding plate (4), the pressing cylinder (73) is fixedly connected with the pressing base (71), the driving shaft of the pressing cylinder (73) is connected with the pressing block (74), and the pressing cylinder (73) can drive the pressing block (74) to move downward and make the lower side of the pressing block (74) abut against the upper end surface of the rotor located on the inner mold (2).

8. A magnet mounting apparatus for a rotor of an electric machine according to claim 7, characterized in that: The pressing mechanism (7) comprises a pressing plate (75), four guide rods (76) are arranged between the pressing base (71) and the workbench (1), the guide rods (76) are located outside the feeding plate (4), the guide rods (76) pass through the pressing plate (75), the pressing plate (75) can slide up and down relative to the guide rods (76), the driving shaft of the pressing cylinder (73) is fixedly connected with the pressing plate (75), the pressing block (74) is in a cylindrical shape, and the pressing block (74) is fixedly connected with the pressing plate (75).

9. The magnetic steel mounting apparatus of any one of claims 1-5, wherein: The rotating mechanism (8) comprises a rotating motor (81), a driving wheel (82), a driven wheel (83) and a synchronous belt (84), the rotating motor (81) is fixed below the workbench (1), the driving shaft of the rotating motor (81) is fixedly connected with the driving wheel (82), the driving wheel (82) drives the driven wheel (83) to rotate through the synchronous belt (84), the driven wheel (83) is sleeved on the insert piece (3) and is fixedly connected with the insert piece (3) in the circumferential direction and can be movably connected in the axial direction, and the driven wheel (83) is rotatably connected with the lower side of the workbench (1); the lower ends of all the insert pieces (3) are fixedly connected with the insert piece seat (31), and the lower end of the insert piece seat (31) is rotatably connected with the jacking mechanism (9).

10. The magnetic steel mounting apparatus of any one of claims 1-5, wherein: The jacking mechanism (9) comprises a jacking base (91), a jacking motor (92), a jacking sleeve (93) and a jacking screw (94), the jacking base (91) is fixedly connected with the workbench (1), the jacking motor (92) is fixedly connected below the jacking base (91), the jacking screw (94) penetrates through the jacking base (91) and is fixedly connected with the driving shaft of the jacking motor (92) through a shaft coupling (95), the jacking screw (94) extends into the jacking sleeve (93) and is threadedly connected with a nut in the jacking sleeve (93), the nut is fixedly connected with the jacking sleeve (93), and the upper end of the jacking sleeve (93) is rotatably connected with the insert piece seat (31).

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