Wireless power supply electric rotary clamping jaw

Abstract

The invention discloses a wireless power supply electric rotating clamping jaw which comprises a clamping jaw part, a shell, a frameless motor, a sleeve, a hollow cup motor installed in the sleeve, a bearing, a first control panel, a rotating coil fixing base, a rotating power supply coil installed on the rotating coil fixing base and a fixed coil fixing base. And the fixed power supply coil and the second control panel are arranged on the fixed coil fixing seat. Wireless power supply is realized in a mode that the rotary power supply coil is matched with the fixed power supply coil, so that a traditional conductive slip ring does not need to be adopted for power supply, friction is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of gripper technology, and more particularly to a wirelessly powered electric rotary gripper. Background Technology

[0002] Grippers are commonly used to grasp products on production lines and are typically driven by compressed gas, as exemplified by the utility model patent with authorization number CN207841357U, entitled "Pneumatic Gripper." However, compressed gas-driven systems suffer from drawbacks such as high noise levels, difficulty in controlling gripping force, and limited drive sources, failing to fully meet the needs of various application scenarios.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a wirelessly powered electric rotary gripper that is electrically driven, thereby reducing noise and vibration during operation and fully meeting the application requirements of various scenarios.

[0005] The technical solution of the present invention is as follows: A wirelessly powered electric rotary gripper is provided, comprising: a gripper part, a housing, a frameless motor, a sleeve, a hollow cup motor installed in the sleeve, a bearing, a first control plate and a rotating coil fixing seat respectively installed on the sleeve, a rotating power supply coil installed on the rotating coil fixing seat, a fixed coil fixing seat, a fixed power supply coil installed on the fixed coil fixing seat, and a second control plate; the stator of the frameless motor is installed in the housing, the rotor of the frameless motor is sleeved on the surface of the sleeve, and the rotor of the frameless motor is disposed inside the stator of the frameless motor; the bearing is installed in the housing, and the inner ring of the bearing is sleeved on the surface of the sleeve; The first control board is electrically connected to the rotating power supply coil and the hollow cup motor respectively. The second control board and the fixed coil mounting base are installed inside the housing. The second control board is electrically connected to the fixed power supply coil and the frameless motor respectively. The rotating power supply coil is opposite to the fixed power supply coil. The gripper part includes: a gripper housing and two sets of gripper assemblies installed in the gripper housing. The gripper assembly includes: a guide assembly installed on the gripper housing, a rack installed on the guide assembly, a gripper body connected to the rack, and a gear. The two racks are opposite to each other, and the gear meshes with the two racks. The output shaft of the hollow cup motor is connected to the gear, and the gripper housing is connected to the sleeve.

[0006] The frameless motor drives the sleeve to rotate, thereby achieving overall rotation of the gripper portion. The hollow cup motor rotates the gears. Since the gears mesh with the two racks, the two gripper bodies move closer and further apart, achieving gripping and releasing. Because the hollow cup motor is installed inside the sleeve, the sleeve's rotation also drives the hollow cup motor. To operate the hollow cup motor, it must be powered. Wireless power supply is achieved through the cooperation of a rotating power supply coil and a fixed power supply coil, eliminating the need for traditional conductive slip rings, reducing friction, and extending service life. The first control board controls the hollow cup motor, and the second control board controls the frameless motor. The rotating power supply coil is mounted on a rotating coil mounting base, and the fixed power supply coil is mounted on a fixed coil mounting base to prevent electromagnetic interference to the first and second control boards during operation. The bearing prevents the sleeve from shifting.

[0007] Furthermore, the housing includes: a motor base, a motor cover connected to the motor base, and a motor top cover connected to the motor cover; the stator of the frameless motor is installed inside the motor base.

[0008] Furthermore, there are two bearings, with one bearing installed on each of the motor mount and the motor cover.

[0009] Furthermore, the wirelessly powered electric rotary gripper also includes: a central shaft mounted on the hollow cup motor, a first magnet mounted on the central shaft, a first Hall sensor mounted on the first control board, a second magnet mounted on the rotating coil mounting base, and a second Hall sensor mounted on the second control board. The first Hall sensor is used to sense the first magnet, thereby determining the rotational speed of the hollow cup motor; the second Hall sensor is used to sense the second magnet, thereby determining the rotational speed of the frameless motor.

[0010] Furthermore, the wirelessly powered electric rotary gripper also includes: a bearing mounting seat installed inside the sleeve, and a rod bearing mounted on the bearing mounting seat; the spindle passes through the rod bearing. The rod bearing is used to prevent the spindle from shifting, and at the same time, the rod bearing provides support for the hollow cup motor.

[0011] Furthermore, the wirelessly powered electric rotating gripper also includes: a mounting base installed on the sleeve; the first control board and the rotating coil fixing base are installed on the mounting base.

[0012] Furthermore, the first control board and the rotating coil fixing seat are mounted on the mounting base by studs.

[0013] Furthermore, the guiding assembly includes: a guide rail and a slider that cooperates with the guide rail. Preferably, the slider is mounted on the gripper housing, and the guide rail is mounted on a rack.

[0014] Furthermore, the gripper housing is provided with two parallel mounting slots, and the guide component of the gripper assembly is installed in the mounting slots.

[0015] Furthermore, the sleeve is connected to the gripper housing via an adapter plate.

[0016] Using the above solution, this invention provides a wirelessly powered electric rotary gripper. The frameless motor drives the sleeve to rotate, thereby achieving overall rotation of the gripper portion. The hollow cup motor rotates the gears. Since the gears mesh with the two racks, the two gripper bodies move closer and further apart, thus achieving gripping and releasing. Wireless power supply is achieved by cooperating between a rotating power supply coil and a fixed power supply coil, eliminating the need for traditional conductive slip rings, reducing friction, and extending service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention. Figure 2 for Figure 1 Cross-sectional view of the embodiment; Figure 3 for Figure 1 A schematic diagram of the structure without the outer shell in the embodiment; Figure 4 for Figure 1 A schematic diagram of the embodiment with the outer shell, frameless motor, sleeve, fixed coil mounting base, fixed power supply coil, and second control board removed; Figure 5 This is an exploded view of the gripper section; Figure 6 This is a schematic diagram of the gripper assembly. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figures 1-6This invention provides a wirelessly powered electric rotary gripper, comprising: a gripper part, a housing, a frameless motor, a sleeve 11, a hollow cup motor 10 installed inside the sleeve 11, a bearing 12, a first control plate 13 and a rotating coil fixing seat 14 respectively installed on the sleeve 11, a rotating power supply coil 15 installed on the rotating coil fixing seat 14, a fixed coil fixing seat 16, a fixed power supply coil 17 installed on the fixed coil fixing seat 16, and a second control plate 18; the stator 19 of the frameless motor is installed inside the housing, and the rotor 20 of the frameless motor is sleeved on the surface of the sleeve 11, with the rotor 20 disposed inside the stator 19; the bearing 12 is installed inside the housing, and the inner ring of the bearing 12 is sleeved on the surface of the sleeve 11; the first control plate... 13 is electrically connected to the rotating power supply coil 15 and the hollow cup motor 10 respectively. The second control board 18 and the fixed coil fixing seat 16 are installed in the outer shell. The second control board 18 is electrically connected to the fixed power supply coil 17 and the frameless motor respectively. The rotating power supply coil 15 is opposite to the fixed power supply coil 17. The gripper part includes: a gripper housing 21 and two sets of gripper assemblies installed in the gripper housing 21. The gripper assembly includes: a guide assembly installed on the gripper housing 21, a rack 22 installed on the guide assembly, a gripper body 23 connected to the rack 22, and a gear 24. The two racks 22 are opposite to each other, and the gear 24 meshes with the two racks 22. The output shaft of the hollow cup motor 10 is connected to the gear 24. The gripper housing 21 is connected to the sleeve 11.

[0020] The frameless motor drives the sleeve 11 to rotate, thereby achieving overall rotation of the gripper portion. The hollow cup motor 10 drives the gear 24 to rotate. Since the gear 24 meshes with the two racks 22, the two gripper bodies 23 move closer and further apart, thus achieving gripping and releasing. Because the hollow cup motor 10 is installed inside the sleeve 11, the rotation of the sleeve 11 also drives the hollow cup motor 10 to rotate. To operate the hollow cup motor 10, it must be powered. Wireless power supply is achieved by cooperating with the rotating power supply coil 15 and the fixed power supply coil 17, thus eliminating the need for traditional conductive slip rings, reducing friction, and extending service life. The first control board 13 controls the hollow cup motor 10, and the second control board 18 controls the frameless motor. The rotating power supply coil 15 is mounted on the rotating coil mounting base 14, and the fixed power supply coil 17 is mounted on the fixed coil mounting base 16 to prevent electromagnetic interference to the first control board 13 and the second control board 18 during operation. The bearing 12 is used to prevent the sleeve 11 from shifting.

[0021] In this embodiment, the housing includes: a motor base 25, a motor cover 26 connected to the motor base 25, and a motor top cover 27 connected to the motor cover 26; the stator 19 of the frameless motor is installed inside the motor base 25.

[0022] In this embodiment, there are two bearings 12, and one bearing 12 is installed on each of the motor mount 25 and the motor cover 26.

[0023] In this embodiment, the wirelessly powered electric rotary gripper further includes: a spindle 28 mounted on the hollow cup motor 10; a first magnet 29 mounted on the spindle 28; a first Hall sensor 40 mounted on the first control board 13; a second magnet 30 mounted on the rotating coil mounting base 14; and a second Hall sensor 41 mounted on the second control board 18. The first Hall sensor 40 senses the first magnet 29, thereby determining the rotational speed of the hollow cup motor 10. The second Hall sensor 41 senses the second magnet 30, thereby determining the rotational speed of the frameless motor.

[0024] In this embodiment, the wirelessly powered electric rotating gripper further includes: a bearing fixing seat 31 installed inside the sleeve 11, and a rod bearing 32 installed on the bearing fixing seat 31; the spindle 28 passes through the rod bearing 32. The rod bearing 32 is used to prevent the spindle 28 from shifting. In this embodiment, for ease of assembly and counterweight requirements, the spindle 28 is connected to a rotating rod 38, the rod bearing 32 is sleeved on the rotating rod 38, and the first magnetic suction member 29 is installed on the rotating rod 38.

[0025] In this embodiment, the wirelessly powered electric rotating gripper further includes: a mounting base 33 installed on the sleeve; the first control board 13 and the rotating coil fixing base 14 are installed on the mounting base 33.

[0026] In this embodiment, the first control board 13 and the rotating coil fixing seat 14 are mounted on the mounting seat 33 by studs 39.

[0027] In this embodiment, the guiding assembly includes: a guide rail 34 and a slider 35 that cooperates with the guide rail 34. Preferably, the slider 35 is mounted on the gripper housing 21, and the guide rail 34 is mounted on the rack 22.

[0028] In this embodiment, the gripper housing 21 is provided with two parallel mounting slots 36, and the guide component of the gripper assembly is installed in the mounting slots 36.

[0029] In this embodiment, the sleeve 11 is connected to the gripper housing 21 via an adapter plate 37.

[0030] In summary, this invention provides a wirelessly powered electric rotary gripper. The frameless motor drives the sleeve to rotate, thereby achieving overall rotation of the gripper portion. The hollow cup motor rotates the gears. Since the gears mesh with the two racks, the two gripper bodies move closer and further apart, thus achieving gripping and releasing. Wireless power supply is achieved by cooperating between a rotating power supply coil and a fixed power supply coil, eliminating the need for traditional conductive slip rings, reducing friction, and extending service life.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wirelessly powered electric rotary gripper, characterized in that, include: The system comprises a gripper, a housing, a frameless motor, a sleeve, a hollow cup motor mounted inside the sleeve, a bearing, a first control plate and a rotating coil fixing seat mounted on the sleeve, a rotating power supply coil mounted on the rotating coil fixing seat, a fixed coil fixing seat, a fixed power supply coil mounted on the fixed coil fixing seat, and a second control plate. The stator of the frameless motor is mounted inside the housing, and the rotor of the frameless motor is fitted onto the surface of the sleeve, with the rotor positioned inside the stator. The bearing is mounted inside the housing, and its inner ring is fitted onto the surface of the sleeve. The first control plate is electrically connected to the rotating power supply coil and the hollow cup motor. The second control plate and the fixed coil fixing seat are mounted inside the housing, and the second control plate is electrically connected to the fixed power supply coil and the frameless motor. The rotating power supply coil is opposite to the fixed power supply coil; The gripper part includes: a gripper housing, and two sets of gripper assemblies installed in the gripper housing; the gripper assembly includes: a guide assembly installed on the gripper housing, a rack installed on the guide assembly, a gripper body connected to the rack, and a gear; the two racks are opposite to each other, the gear meshes with the two racks, the output shaft of the hollow cup motor is connected to the gear, and the gripper housing is connected to the sleeve.

2. The wirelessly powered electric rotary gripper according to claim 1, characterized in that, The housing includes: a motor base, a motor cover connected to the motor base, and a motor top cover connected to the motor cover; the stator of the frameless motor is installed inside the motor base.

3. The wirelessly powered electric rotary gripper according to claim 2, characterized in that, There are two bearings, one of which is installed on the motor mount and the other on the motor cover.

4. The wirelessly powered electric rotary gripper according to claim 1, characterized in that, Also includes: A shaft rod is installed on the hollow cup motor, a first magnet is installed on the shaft rod, a first Hall sensor is installed on the first control board, a second magnet is installed on the rotating coil mounting base, and a second Hall sensor is installed on the second control board; the first Hall sensor is used to sense the first magnet, and the second Hall sensor is used to sense the second magnet.

5. A wirelessly powered electric rotary gripper according to claim 4, characterized in that, Also includes: A bearing mounting seat installed inside the sleeve, and a rod bearing mounted on the bearing mounting seat; The spindle passes through the rod bearing.

6. The wirelessly powered electric rotary gripper according to claim 1, characterized in that, Also includes: A mounting base is installed on the sleeve; the first control board and the rotating coil fixing base are installed on the mounting base.

7. A wirelessly powered electric rotary gripper according to claim 6, characterized in that, The first control board and the rotating coil fixing seat are mounted on the mounting base by studs.

8. A wirelessly powered electric rotary gripper according to claim 1, characterized in that, The guiding component includes: a guide rail and a slider that cooperates with the guide rail.

9. A wirelessly powered electric rotary gripper according to claim 1, characterized in that, The gripper housing is provided with two parallel mounting slots, and the guide component of the gripper assembly is installed in the mounting slots.

10. A wirelessly powered electric rotary gripper according to claim 1, characterized in that, The sleeve is connected to the gripper housing via an adapter plate.

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