Concentricity positioning device for motor rotor and stator

Abstract

The utility model relates to the technical field of motor production, and specifically discloses a concentricity positioning device for a motor rotor and a stator, comprising a table and a positioning mechanism, wherein the positioning mechanism comprises a lifting plate, a supporting disk, a sleeve, a plurality of groups of abutting components, a lifting component, a placing component and a fixing component, wherein each group of abutting components comprises a fixing block, a round rod, a abutting block, a spring and a disc, wherein one end of the lifting plate is threadedly matched with the lifting component, and the other end of the lifting plate is fixedly connected with the supporting disk, the supporting disk has a plurality of through holes, the fixing block is fixedly connected with the supporting disk, the round rod passes through the fixing block, one end of the round rod is fixedly connected with the abutting block, the other end of the round rod is fixedly connected with the disc, one end of the spring is fixedly connected with the fixing block, and the other end of the spring is fixedly connected with the disc, and through the above arrangement, it is convenient to perform concentric press-fitting of the rotor and the stator, thereby improving production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production, in particular to a concentricity positioning device for a motor rotor and a stator. Background Art

[0002] An electric motor, commonly known as a motor, refers to an electromagnetic device that realizes electrical energy conversion or transmission based on the law of electromagnetic induction. A motor usually includes a stator and a rotor. The stator includes a stator core and a coil winding wound on the stator core. The rotor includes a rotating shaft and a rotor core sleeved on the rotating shaft. A permanent magnet is provided on the outer edge of the rotor core. When the motor is produced, the stator and the rotor need to be pressed together.

[0003] However, when the stator and rotor are press-fitted, the rotor will be attracted to one side of the inner hole of the stator due to the magnetic force, causing the rotor and stator to be out of center. Utility Model Content

[0004] The utility model aims to provide a concentricity positioning device for a motor rotor and a stator, aiming to solve the technical problem in the prior art that when the stator and the rotor are press-fitted, the rotor is attracted to one side of the inner hole of the stator by the action of magnetic force, causing the rotor and the stator to be non-concentric.

[0005] To achieve the above-mentioned purpose, the utility model adopts a concentricity positioning device for a motor rotor and a stator, comprising a table and a positioning mechanism, wherein the positioning mechanism comprises a lifting plate, a supporting disk, a sleeve, multiple groups of abutting components, a lifting component, a placing component and a fixing component, each group of the abutting components comprises a fixing block, a round rod, a holding block, a spring and a disc, the lifting component is arranged on the upper surface of the table, one end of the lifting plate is threadedly matched with the lifting component, the other end of the lifting plate is fixedly connected to the supporting disk, the supporting disk has a plurality of through holes, multiple groups of the holding components are arranged on the lower surface of the supporting disk, the fixing block is fixedly connected to the supporting disk, the round rod penetrates the fixing block and is slidably connected to the fixing block, one end of the round rod is fixedly connected to the holding block, the other end of the round rod is fixedly connected to the disc, one end of the spring is fixedly connected to the fixing block, the other end of the spring is fixedly connected to the disc, the placing component is arranged on the upper surface of the table, and the fixing component is used to fix the stator of the motor.

[0006] Among them, the lifting assembly includes a mounting frame, a first motor and a screw rod, the mounting frame is fixedly connected to the upper surface of the table, the first motor is fixedly connected to the upper end of the mounting frame, the screw rod passes through the lifting plate and cooperates with the lifting plate thread, one end of the screw rod is rotatably connected to the table, and the other end of the screw rod is fixedly connected to the output end of the first motor.

[0007] Wherein, the placement assembly includes four fixing rods and a placement plate, one end of the four fixing rods is fixedly connected to the table, and the other end of the four fixing rods is fixedly connected to the placement plate.

[0008] Among them, the fixing assembly includes a second motor, a movable plate, a threaded rod, a limit block and multiple groups of clamping members, the second motor is fixedly connected to the lower surface of the table, the threaded rod passes through the movable plate and is threadedly matched with the movable plate, one end of the threaded rod is fixedly connected to the output end of the second motor, and the other end of the threaded rod is fixedly connected to the limit block, and the multiple groups of clamping members are respectively arranged on the outside of the movable plate.

[0009] Among them, each group of the clamping parts includes a connecting rod, a support rod, a clamping plate and a sliding rod, the table has a rectangular groove, the support rod passes through the rectangular groove, the round rod passes through the support rod, the two ends of the round rod are respectively fixedly connected to the table, one end of the connecting rod is hinged to the movable plate, the other end of the connecting rod is hinged to the support rod, and the clamping plate is fixedly connected to the upper end of the support rod.

[0010] Among them, the concentricity positioning device of the motor rotor and stator also includes a box, two vertical plates and two bolts. The two vertical plates are fixedly connected to the table and are located on the lower surface of the table. The box is arranged on the lower surface of the table and fits with the two vertical plates. The two bolts respectively penetrate the two vertical plates and are respectively threadedly connected to the box.

[0011] The utility model discloses a concentricity positioning device for a motor rotor and a stator. When it is used, the stator is placed on the placing component and fixed by the fixing component. Then, the rotating shaft of the rotor is inserted into the sleeve, and the end cover on the rotating shaft is made to abut against the abutting block. The abutting block drives the round rod to slide on the fixing block, so that the spring is stretched until the end cover on the rotating shaft fits with the lower surface of the supporting disk. At this time, the spring rebounds, so that the round rod drives the abutting block to abut against the end cover on the rotor. Then, the lifting assembly drives the lifting plate to move upward. The plate moves downward, and the lifting plate drives the supporting plate to move downward, thereby driving the rotor to be inserted downward into the stator. When the abutment block contacts the outer shell on the stator, the abutment block drives the round rod away from the end cover on the rotor, so that the end cover on the rotor and the outer shell on the stator are fitted together, and the end cover on the rotor is fixed to the outer shell on the stator by using screws to complete the press-fitting of the stator and the rotor. This method can effectively solve the problem in the prior art that when the stator and the rotor are press-fitted, the rotor will be adsorbed to one side of the inner hole of the stator by the action of magnetic force, causing the rotor and the stator to be non-concentric. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0014] Figure 2 It is a front view of the first embodiment of the utility model.

[0015] Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0017] 101-table, 102-rectangular groove, 103-lifting plate, 104-support plate, 105-through hole, 106-sleeve, 107-fixed block, 108-round rod, 109-holding block, 110-spring, 111-disc, 112-installation frame, 113-first motor, 114-screw, 115-fixed rod, 116-placing plate, 117-second motor, 118-movable plate, 119-threaded rod, 120-limiting block, 121-connecting rod, 122-support rod, 123-clamp, 124-slide, 125-stator, 126-rotor, 201-box, 202-vertical plate, 203-bolt. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figure 1 to Figure 3 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 It is a front view of the first embodiment of the utility model. Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0021] The utility model provides a concentricity positioning device for a motor rotor and a stator, comprising a table 101 and a positioning mechanism, wherein the positioning mechanism comprises a lifting plate 103, a supporting disk 104, a sleeve 106, a plurality of groups of abutting components, a lifting component, a placing component and a fixing component, wherein each group of the abutting components comprises a fixing block 107, a round rod 108, abutting blocks 109, a spring 110 and a round disk 111, the lifting component comprises a mounting frame 112, a first motor 113 and a screw rod 114, the placing component comprises four fixing rods 115 and a placing disk 116, the fixing component comprises a second motor 117, a moving plate 118, a threaded rod 119, a limiting block 120 and a plurality of groups of clamping members, wherein each group of the clamping members comprises a connecting rod 121, a supporting rod 122, a clamping plate 123 and a sliding rod 124, and the above-mentioned scheme solves the problem in the prior art that when the stator and the rotor are press-fitted, the rotor is attracted to one side of the inner hole of the stator by the action of magnetic force, causing the rotor and the stator to be non-concentric.

[0022] According to this specific embodiment, the lifting assembly is arranged on the upper surface of the table 101, one end of the lifting plate 103 is threadedly matched with the lifting assembly, and the other end of the lifting plate 103 is fixedly connected to the support plate 104, the support plate 104 has a plurality of through holes 105, and a plurality of groups of the abutting assemblies are arranged on the lower surface of the support plate 104, the fixing block 107 is fixedly connected to the support plate 104, and the round rod 108 passes through the fixing block 107 and slides with the fixing block 107. The round rod 108 is connected with the support block 109 at one end, and the other end of the round rod 108 is connected with the disc 111 at the other end. The spring 110 is connected with the fixed block 107 at one end, and the other end of the spring 110 is connected with the disc 111 at the other end. The placement component is arranged on the upper surface of the table 101, and the fixing component is used to fix the stator 125 of the motor. When the stator 125 is used, the stator 125 is placed on the placement component and fixed by the fixing component. The rotating shaft of the rotor 126 is then inserted into the sleeve 106, and the end cover on the rotating shaft abuts against the abutting block 109. The abutting block 109 drives the round rod 108 to slide on the fixed block 107, so that the spring 110 is stretched until the end cover on the rotating shaft fits with the lower surface of the support plate 104. At this time, the spring 110 rebounds, so that the round rod 108 drives the abutting block 109 to abut the end cover on the rotor 126, and then drives the lifting plate 103 through the lifting assembly. Move downward, the lifting plate 103 drives the support plate 104 to move downward, thereby driving the rotor 126 to be inserted downward into the stator 125. When the abutment block 109 contacts the outer shell on the stator 125, the abutment block 109 drives the round rod 108 away from the end cover on the rotor 126, so that the end cover on the rotor 126 fits with the outer shell on the stator 125. The end cover on the rotor 126 is fixed to the outer shell on the stator 125 by using screws, thereby completing the press-fitting of the stator 125 and the rotor 126.

[0023] Among them, the installation frame 112 is fixedly connected to the upper surface of the table 101, the first motor 113 is fixedly connected to the upper end of the installation frame 112, the screw rod 114 passes through the lifting plate 103 and is threadedly matched with the lifting plate 103, one end of the screw rod 114 is rotatably connected to the table 101, and the other end of the screw rod 114 is fixedly connected to the output end of the first motor 113. When in use, the first motor 113 is started, and the output end of the first motor 113 drives the screw rod 114 to rotate, so that the lifting plate 103 moves upward or downward.

[0024] Secondly, one end of the four fixing rods 115 is fixedly connected to the table 101 respectively, and the other end of the four fixing rods 115 is fixedly connected to the placement plate 116 respectively. When in use, the four fixing rods 115 are used to fix the placement plate 116, and the placement plate 116 is used to place the stator 125.

[0025] At the same time, the second motor 117 is fixedly connected to the lower surface of the table 101, the threaded rod 119 passes through the movable plate 118 and is threadedly matched with the movable plate 118, one end of the threaded rod 119 is fixedly connected to the output end of the second motor 117, and the other end of the threaded rod 119 is fixedly connected to the limit block 120, and multiple groups of clamping members are respectively arranged on the outside of the movable plate 118. When in use, the second motor 117 is started, and the output end of the second motor 117 drives the threaded rod 119 to rotate, so that the movable plate 118 moves upward or downward.

[0026] In addition, the table 101 has a rectangular groove 102, the support rod 122 passes through the rectangular groove 102, the round rod 108 passes through the support rod 122, and the two ends of the round rod 108 are respectively fixedly connected to the table 101, one end of the connecting rod 121 is hinged to the movable plate 118, and the other end of the connecting rod 121 is hinged to the support rod 122, and the clamping plate 123 is fixedly connected to the upper end of the support rod 122. When in use, the movable plate 118 moves downward to drive one end of the connecting rod 121 to move downward, and the other end of the connecting rod 121 drives the support rod 122 to slide on the sliding rod 124, and the support rod 122 drives the clamping plate 123 to move, thereby clamping and fixing the stator 125.

[0027] When using the concentricity positioning device of the motor rotor and stator of the present embodiment, the stator 125 is placed on the placing plate 116, and then the second motor 117 is started. The output end of the second motor 117 drives the threaded rod 119 to rotate, so that the movable plate 118 moves downward, and the movable plate 118 drives one end of the connecting rod 121 to move downward, and the other end of the connecting rod 121 drives the support rod 122 to slide on the sliding rod 124, and the support rod 122 drives the clamping plate 123 to move, so as to clamp and fix the stator 125, and then the rotating shaft of the rotor 126 is inserted into the sleeve 106, and the end cover on the rotating shaft is abutted against the abutting block 109, and the abutting block 109 drives the round rod 108 to slide on the fixing block 107, so that the spring 110 is stretched until the end cover on the rotating shaft is in contact with the lower surface of the supporting plate 104, and the spring 110 is returned to The first motor 113 is then started, and the output end of the first motor 113 drives the screw rod 114 to rotate, so that the lifting plate 103 moves downward, and the lifting plate 103 drives the supporting plate 104 to move downward, thereby driving the rotor 126 to be inserted downward into the stator 125. When the supporting block 109 contacts the outer shell on the stator 125, the supporting block 109 drives the round rod 108 away from the end cover on the rotor 126, so that the end cover on the rotor 126 and the outer shell on the stator 125 are fitted together, and the end cover on the rotor 126 is fixed to the outer shell on the stator 125 by using screws, thereby completing the press-fitting of the stator 125 and the rotor 126. This method can effectively solve the problem in the prior art that when the stator and the rotor are press-fitted, the rotor will be adsorbed to one side of the inner hole of the stator by the action of magnetic force, causing the rotor and the stator to be non-concentric.

[0028] The second embodiment of the present application is:

[0029] Based on the first embodiment, please refer to Figure 4 , Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0030] The utility model provides a concentricity positioning device for a motor rotor and a stator, which also includes a box body 201 , two vertical plates 202 and two bolts 203 .

[0031] According to this specific embodiment, the two vertical plates 202 are fixedly connected to the table 101 and are located on the lower surface of the table 101. The box 201 is arranged on the lower surface of the table 101 and fits with the two vertical plates 202. The two bolts 203 respectively penetrate the two vertical plates 202 and are respectively threadedly connected to the box 201. When in specific use, the box 201 is provided to facilitate dust prevention of the threaded rod 119 and protection of workers. By unscrewing the two bolts 203, the box 201 is easily disassembled.

[0032] When using the concentricity positioning device for the motor rotor and stator of this embodiment, the box body 201 is provided to facilitate dust prevention of the threaded rod 119 and protection of workers, and the box body 201 can be disassembled by unscrewing the two bolts 203, so as to facilitate maintenance.

[0033] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A concentricity positioning device for a motor rotor and a stator, comprising a table, characterized in that: The cam is secured to the upper surface of the table, and the cam is secured on a lower surface of the table top, wherein the cam is secured on a lower surface of the table top, and the cam is secured on a lower surface of the table top.

2. The concentricity positioning device for the motor rotor and stator according to claim 1, characterized in that: The lifting assembly includes a mounting frame, a first motor and a screw rod. The mounting frame is fixedly connected to the upper surface of the table, the first motor is fixedly connected to the upper end of the mounting frame, the screw rod passes through the lifting plate and is threadedly engaged with the lifting plate, one end of the screw rod is rotatably connected to the table, and the other end of the screw rod is fixedly connected to the output end of the first motor.

3. The concentricity positioning device for the motor rotor and stator according to claim 2, characterized in that: The placement assembly includes four fixing rods and a placement plate, one end of the four fixing rods is fixedly connected to the table, and the other end of the four fixing rods is fixedly connected to the placement plate.

4. The concentricity positioning device for the motor rotor and stator according to claim 3, characterized in that: The fixing assembly includes a second motor, a movable plate, a threaded rod, a limit block and multiple groups of clamps. The second motor is fixedly connected to the lower surface of the table. The threaded rod passes through the movable plate and is threadedly matched with the movable plate. One end of the threaded rod is fixedly connected to the output end of the second motor, and the other end of the threaded rod is fixedly connected to the limit block. The multiple groups of clamps are respectively arranged on the outside of the movable plate.

5. The concentricity positioning device for the motor rotor and stator according to claim 4, characterized in that: Each group of the clamping parts includes a connecting rod, a supporting rod, a clamping plate and a sliding rod. The table has a rectangular groove. The supporting rod passes through the rectangular groove. The round rod passes through the supporting rod. Both ends of the round rod are respectively fixedly connected to the table. One end of the connecting rod is hinged to the movable plate, and the other end of the connecting rod is hinged to the supporting rod. The clamping plate is fixedly connected to the upper end of the supporting rod.

6. The concentricity positioning device for the motor rotor and stator according to claim 5, characterized in that: The concentricity positioning device for the motor rotor and stator also includes a box, two vertical plates and two bolts. The two vertical plates are fixedly connected to the table and are located on the lower surface of the table. The box is arranged on the lower surface of the table and fits with the two vertical plates. The two bolts respectively penetrate the two vertical plates and are respectively threadedly connected to the box.

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