Servo motor stator and rotor assembling equipment

Abstract

The utility model discloses servo motor stator and rotor assembling equipment which comprises a machine table, a platform, a positioning and placing platform, a first positioning and clamping mechanism, a first positioning mechanism, a movable platform, a second positioning and clamping mechanism and a second positioning mechanism, and the first positioning mechanism and the second positioning mechanism are arranged on the same central axis. According to the utility model, through the first positioning mechanism and the second positioning mechanism which are arranged on the same central axis, coaxial press-fit assembly of the stator and the rotor is realized; the first positioning and clamping mechanism is arranged in a combined mode and used for positioning and clamping the servo motor shell with the stator. The second positioning and clamping mechanism is arranged and used for positioning and fixing the flange fixed with the rotor, the position of the rotor is guaranteed, the position of the flange does not need to be manually adjusted, the situation of displacement between the rotor and the stator caused by manual intervention is prevented, multiple positioning is achieved, the coaxiality of all parts in the assembling process is guaranteed, and the assembling efficiency is improved. And the assembly quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor assembly manufacturing processes, and particularly relates to a servo motor stator-rotor assembly device. Background Technique

[0002] With the development of integrated circuits, power electronics technology and AC variable speed drive technology, permanent magnet AC servo drive technology has made remarkable progress and has become the main development direction of contemporary high-performance servo systems.

[0003] The rotor of a permanent magnet AC synchronous motor uses permanent magnet materials, and the permanent magnet will generate a permanent magnetic field around it. When the stator and rotor of the motor are assembled, the rotor will be adsorbed to one side of the inner hole of the stator under the action of magnetic force, resulting in difficult assembly, low assembly accuracy, and adverse effects on the performance of the motor. At the same time, due to the collision of the stator and rotor caused by the adsorption action in an instant, the permanent magnet is easily damaged, resulting in an increase in the production cost of the motor.

[0004] In view of the above problems, people invented the patent number: 201821073630.1, which discloses a tooling for ensuring the coaxiality of the stator and rotor of a servo motor, including a "7"-shaped cantilever rack and a workbench, and the bottom of the cantilever rack is fixed at one end of the workbench; it also includes an upper jacking device, a lower jacking device, an upper pressing device, a lower supporting device and a mandrel. The upper jacking device is installed at the lower part of the cantilever end of the cantilever rack, the upper pressing device is installed at the lower parts of the upper jacking device and the cantilever of the cantilever rack, the lower supporting device is installed at the upper part of the workbench, the lower jacking device is installed at the lower part of the upper pressing device, and the mandrel is installed between the upper jacking device and the lower jacking device. It has the characteristics of simple structure, can ensure the coaxiality of the stator and rotor of the motor, and will not damage the rotor permanent magnet. At the same time, it has high production efficiency and is suitable for the assembly of the stator and rotor of a servo motor. However, this tooling still has the following problems: 1. The existing tooling positions the rotor and end cover through an upper pressure head, but this method can only ensure the coaxiality of the rotor and cannot ensure the position of the flange, which may cause offset between the end cover and the stator. When adjusting the position of the end cover during assembly, due to the influence of the magnetic force between the rotor and the stator, the coaxiality of the rotor and the stator is offset, affecting the fitting accuracy and subsequent assembly efficiency; 2. The existing tooling uses a pressing block method to fix the stator, which requires manual locking installation or disassembly, with cumbersome steps, affecting the subsequent assembly efficiency and not meeting the production requirements of existing motors. Content of the Utility Model

[0005] The present utility model aims at the deficiencies of the current technology and provides a servo motor stator-rotor assembly device, aiming to solve the technical problems of slow motor assembly efficiency and possible misalignment of the rotor and stator on the same central axis due to manual operation, resulting in reduced fitting accuracy in the existing technology.

[0006] The technical solution adopted by the present utility model to achieve the above object is as follows:

[0007] A servo motor stator and rotor assembly device includes a machine table, the machine table is provided with a platform, the platform is provided with a positioning placement platform and a first positioning and clamping mechanism; a first positioning mechanism is provided at the bottom of the platform; the platform is further provided with a bracket, the bracket is provided with a movable platform, the movable platform is provided with a second positioning and clamping mechanism; the bracket is further provided with a top plate, the top plate is provided with a second positioning mechanism; the driving ends of the first positioning mechanism and the second positioning mechanism are both arranged on the same central axis; the machine table is further provided with a control box.

[0008] For further improvement, the positioning placement platform is arranged on the platform, the first positioning and clamping mechanism includes two first positioning and clamping components, and the two first positioning and clamping components are arranged beside the positioning placement platform in a mirror image manner; the positioning placement platform is provided with a positioning groove, and the positioning groove is provided with a notch; each first positioning and clamping component includes a cylinder and a clamping block, and the clamping block is arranged on the driving end of the cylinder.

[0009] For further improvement, both the positioning placement platform and the platform are provided with central through holes, and the central through holes are on the same central axis; the platform is provided with a support, and the first positioning mechanism is arranged on the support;

[0010] The first positioning mechanism includes a first servo motor and a lifting electric cylinder, and a belt and synchronous pulley linkage assembly is arranged between the first servo motor and the lifting electric cylinder; the lifting electric cylinder is provided with a lifting rod, and the lifting rod is arranged below the central through hole.

[0011] For further improvement, the top of the lifting rod is provided with a positioning step, and the positioning step is provided with a central positioning hole.

[0012] For further improvement, the bracket includes a plurality of guide rods, the guide rods are all provided with guide sleeves, the movable platform is fixed on the guide sleeves and can move up and down along the direction of the guide rods; the movable platform is provided with a positioning notch; the second positioning and clamping mechanism includes two second positioning and clamping components arranged opposite to each other in a mirror image; each of the two second positioning and clamping components includes a cylinder one, a guide rail group and a positioning slide plate, the cylinder one is respectively arranged at one end of the movable platform, the guide rail group is arranged beside the positioning notch, the guide rail group includes two guide rails, the positioning slide plate is arranged between the two guide rails, and one end of the positioning slide plate is connected to the driving end of the cylinder one.

[0013] For further improvement, the positioning slide plate is provided with a first positioning groove, and the first positioning groove is provided with an arc-shaped notch.

[0014] For further improvement, the second positioning mechanism includes a second servo motor and a second lifting electric cylinder. A second belt and synchronous pulley linkage assembly is provided between the second servo motor and the second lifting electric cylinder; the second lifting electric cylinder is provided with a second lifting rod, and the second lifting rod is arranged above the movable platform; a positioning pressing block is provided at the end of the second lifting rod, and the positioning pressing block is provided with a positioning hole.

[0015] For further improvement, the machine table is also provided with an outer cover, and a warning light, a status indicator light and a display touch screen are provided on the outer cover; the platform is also provided with an extended platform, and a grating and control buttons are provided on the extended platform.

[0016] For further improvement, a plurality of adjustable support feet are also provided at the bottom of the machine table.

[0017] Compared with the prior art, at least one of the above one or more technical solutions in the servo motor stator and rotor assembly equipment provided by the embodiment of the present utility model has the following technical effects:

[0018] 1. In the present utility model, the first positioning mechanism and the second positioning mechanism arranged on the same central axis are used to press-fit and assemble the stator and the rotor. The first positioning mechanism is used to position the rotor, and the second positioning mechanism is used to position the stator, ensuring that the rotor and the stator are on the same central axis; combined with the function of the first positioning and clamping mechanism for positioning and clamping the servo motor housing with the stator, and the second positioning and clamping mechanism for positioning and fixing the flange with the rotor, the position of the rotor is ensured, and there is no need for manual adjustment of the flange position, reducing the situation of displacement between the rotor and the stator caused by manual intervention, ensuring the coaxiality between the various parts during assembly, improving the assembly quality, and improving the assembly efficiency;

[0019] 2. By providing a positioning and placing platform for positioning the servo motor housing material with the stator, combined with the first positioning and clamping mechanism composed of a cylinder and a clamping block to realize the positioning and clamping and fixing action of the servo motor housing material with the stator, there is no need for manual locking and fixing or disassembly, reducing the operation steps while improving the assembly efficiency, meeting the production and assembly requirements of existing motors; and the first positioning and clamping mechanism also prevents the servo motor housing material with the stator from shifting due to the action of magnetic suction force, ensuring the coaxiality, and thus ensuring the quality and accuracy of the assembly. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of the servo motor stator-rotor assembly equipment for this embodiment;

[0022] Figure 2 Schematic diagram of the internal structure of the servo motor stator-rotor assembly equipment for this embodiment;

[0023] Figure 3 Front view schematic diagram of the internal structure of the servo motor stator-rotor assembly equipment for this embodiment. Specific implementation manners

[0024] The following is only the preferred embodiment of the present utility model, and does not limit the protection scope of the present invention accordingly.

[0025] Embodiment, see the attached Figures 1 to 3 A servo motor stator-rotor assembly equipment 1 includes a machine table 2. The machine table 2 is provided with a platform 3. The platform 3 is provided with a positioning and placing platform 4 and a first positioning and clamping mechanism 5. A first positioning mechanism 6 is provided at the bottom of the platform 3. The platform 3 is further provided with a bracket 7. The bracket 7 is provided with a movable platform 8. The movable platform 8 is provided with a second positioning and clamping mechanism 9. The bracket 7 is further provided with a top plate 70. The top plate 70 is provided with a second positioning mechanism 10. The driving ends of the first positioning mechanism 6 and the second positioning mechanism 10 are both arranged on the same central axis. The machine table 2 is further provided with a control box 20, and control elements are arranged in the control box 20.

[0026] The positioning and placing platform 4 is arranged on the platform 3. The first positioning and clamping mechanism 5 includes two first positioning and clamping components 50. The two first positioning and clamping components 50 are arranged beside the positioning and placing platform 4 in a mirror image manner. The positioning and placing platform 4 is provided with a positioning groove 40. The positioning groove 40 is provided with a notch 41 for pushing in the servo motor housing with positioned materials. Each first positioning and clamping component 50 includes a cylinder 500 and a clamping block 501. The clamping block 501 is arranged on the driving end of the cylinder 500. The clamping block 501 is provided with a cushion block for protection. The positioning and placing platform 4 is used for positioning the servo motor housing materials. The first positioning and clamping mechanism 5 is cooperatively arranged for positioning and clamping to prevent the servo motor housing materials with stators from shifting due to the magnetic attraction force, ensuring the coaxiality, and thus ensuring the quality and precision of the assembly.

[0027] Both the positioning and placing platform 4 and the platform 3 are provided with central through holes, and the central through holes are on the same central axis; the platform 3 is provided with a support 30, and the first positioning mechanism 6 is arranged on the support 30; the first positioning mechanism 6 includes a first servo motor 60 and a lifting cylinder 61, and a belt and synchronous pulley linkage assembly 62 is arranged between the first servo motor 60 and the lifting cylinder 61; the lifting cylinder 61 is provided with a lifting rod 63, and the lifting rod 63 is arranged below the central through hole; the top of the lifting rod 63 is provided with a positioning step, and the positioning step is provided with a central positioning hole. The first positioning mechanism 6 is used to position the stator to ensure that the stator and the rotor are on the same central axis.

[0028] The bracket 7 includes a plurality of guide rods, and guide sleeves are arranged on the guide rods. The movable platform 8 is fixed on the guide sleeves and can move up and down along the direction of the guide rods; the movable platform 8 is provided with a positioning notch 80; the second positioning and clamping mechanism 9 includes two second positioning and clamping components 90 arranged oppositely in a mirror image; both of the two second positioning and clamping components 90 include a cylinder one 900, a guide rail group 901 and a positioning slide plate 902. The cylinder one 900 is respectively arranged at one end of the movable platform 8, the guide rail group 901 is arranged beside the positioning notch 80, the guide rail group 901 includes two guide rails, the positioning slide plate 902 is arranged between the two guide rails, and one end of the positioning slide plate 902 is connected to the driving end of the cylinder one 900; the positioning slide plate 902 is provided with a first positioning groove 903, and the first positioning groove 903 is provided with an arc-shaped notch 904. The second positioning and clamping mechanism 9 is used to position and fix the flange fixed with the rotor to ensure the position of the rotor, so as to ensure the coaxiality during assembly and improve the assembly quality.

[0029] The second positioning mechanism 10 includes a second servo motor 100 and a second lifting cylinder 101, and a second belt and synchronous pulley linkage assembly 102 is arranged between the second servo motor 100 and the second lifting cylinder 101. Both the belt and synchronous pulley linkage assembly 62 and the second belt and synchronous pulley linkage assembly 102 include two synchronous pulleys and a linkage belt; the second lifting cylinder 101 is provided with a second lifting rod 103, and the second lifting rod 103 is arranged above the movable platform 8; the end of the second lifting rod 103 is provided with a positioning pressing block 104, and the positioning pressing block 104 is provided with a positioning hole. The second positioning mechanism 10 is used to ensure the position of the rotor, so as to ensure that the rotor is on the same central axis.

[0030] The machine table 2 is also provided with an outer cover 21, on which a warning light 22, a status indicator light 23 and a display touch screen 24 are arranged; the platform 3 is also provided with an extension platform 31, on which a grating 32 and control buttons 33 are arranged. The grating 32 is used for detection and protection, and the control buttons 33 are used for control operations. The warning light 22 and the status indicator light 23 are used to display the working status of the servo motor stator-rotor assembly device 1. The extension platform 3 is used for lifting, and the control buttons are used for control.

[0031] The bottom of the machine table 2 is also provided with a plurality of adjustable support feet, and each adjustable support foot is provided with an adjustment bolt. The adjustable support feet are used to adjust the height or balance of the servo motor stator-rotor assembly device 1, ensuring the assembly accuracy and quality of the servo motor stator-rotor assembly device 1.

[0032] In the present utility model, the first positioning mechanism and the second positioning mechanism arranged on the same central axis are used to press-fit and assemble the stator and the rotor. The first positioning mechanism is used to position the rotor, and the second positioning mechanism is used to position the stator, ensuring that the rotor and the stator are on the same central axis. Combined with the setting of the first positioning and clamping mechanism for positioning and clamping the servo motor housing with the stator, and the second positioning and clamping mechanism for positioning and fixing the flange with the rotor, the position of the rotor is ensured, eliminating the need for manual adjustment of the flange position, reducing the occurrence of displacement between the rotor and the stator caused by manual intervention, ensuring the coaxiality between various parts during assembly, improving the assembly quality and efficiency. By setting a positioning and placing platform for positioning the servo motor housing material with the stator, and combining with the first positioning and clamping mechanism composed of a cylinder and a clamping block to realize the positioning, clamping and fixing action of the servo motor housing material with the stator, eliminating the need for manual locking and fixing or disassembly, reducing the operation steps while improving the assembly efficiency, meeting the production and assembly requirements of existing motors. Moreover, the first positioning and clamping mechanism also prevents the servo motor housing material with the stator from shifting due to the action of magnetic attraction, ensuring coaxiality, and thus ensuring the quality and accuracy of the assembly.

[0033] The present utility model is not limited to the above embodiments. Other servo motor stator-rotor assembly devices obtained by adopting the same or similar structures or devices as those in the above embodiments of the present utility model are within the protection scope of the present utility model.

Claims

1. A servo motor stator and rotor assembly device, characterized in that: The servo motor stator-rotor assembly equipment includes a machine table, on which there is a platform. The platform is provided with a positioning and placing platform and a first positioning and clamping mechanism; at the bottom of the platform, there is a first positioning mechanism; the platform is also provided with a bracket, on which there is a movable platform, and the movable platform is provided with a second positioning and clamping mechanism; the bracket is also provided with a top plate, and the top plate is provided with a second positioning mechanism; the driving ends of the first positioning mechanism and the second positioning mechanism are both arranged on the same central axis; the machine table is also provided with a control box.

2. The servo motor stator and rotor assembly equipment according to claim 1, characterized in that: The positioning and placing platform is arranged on the platform. The first positioning and clamping mechanism includes two first positioning and clamping components, which are arranged beside the positioning and placing platform in a mirror image manner; the positioning and placing platform is provided with a positioning groove, and the positioning groove is provided with a notch; each first positioning and clamping component includes a cylinder and a clamping block, and the clamping block is arranged on the driving end of the cylinder.

3. The servo motor stator and rotor assembly equipment according to claim 2, characterized in that: Both the positioning and placing platform and the platform are provided with central through holes on the same central axis; the platform is provided with a support, and the first positioning mechanism is arranged on the support. The first positioning mechanism includes a first servo motor and a lifting electric cylinder, and there is a belt and synchronous pulley linkage component between the first servo motor and the lifting electric cylinder; the lifting electric cylinder is provided with a lifting rod, and the lifting rod is arranged below the central through hole.

4. The servo motor stator and rotor assembly equipment according to claim 3, characterized in that: The top of the lifting rod is provided with a positioning step, and the positioning step is provided with a central positioning hole.

5. The servo motor stator and rotor assembly device according to claim 4, characterized in that: The bracket includes multiple guide rods, and each guide rod is provided with a guide sleeve. The movable platform is fixed on the guide sleeve and can move up and down along the direction of the guide rod; the movable platform is provided with a positioning notch; the second positioning and clamping mechanism includes two second positioning and clamping components arranged opposite to each other in a mirror image; each of the two second positioning and clamping components includes a cylinder one, a guide rail group and a positioning slide plate. The cylinder one is respectively arranged at one end of the movable platform, the guide rail group is arranged beside the positioning notch, the guide rail group includes two guide rails, and the positioning slide plate is arranged between the two guide rails, and one end of the positioning slide plate is connected to the driving end of the cylinder one.

6. The servo motor stator and rotor assembly equipment according to claim 5, characterized in that: The positioning slide plate is provided with a first positioning groove, and the first positioning groove is provided with an arc-shaped notch.

7. The servo motor stator-rotor assembly device according to claim 6, characterized in that: The second positioning mechanism includes a second servo motor and a second lifting electric cylinder, and there is a second belt and synchronous pulley linkage component between the second servo motor and the second lifting electric cylinder; the second lifting electric cylinder is provided with a second lifting rod, and the second lifting rod is arranged above the movable platform; the end of the second lifting rod is provided with a positioning pressing block, and the positioning pressing block is provided with a positioning hole.

8. The servo motor stator and rotor assembly equipment according to claim 7, characterized in that: The machine table is also provided with an outer cover, on which there are a warning lamp, a status indicator lamp and a display touch screen; the platform is also provided with an extension platform, and the extension platform is provided with a grating and control buttons.

9. The servo motor stator and rotor assembly equipment according to claim 8, characterized in that: The bottom of the machine table is also provided with multiple adjustable support feet.

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