Motor driving structure and motor

Abstract

The utility model relates to the technical field of motors, in particular to a motor driving structure and a motor, the structure comprises a casing, a shaft body, a rotary driving assembly and a linear driving assembly, and the rotary driving assembly, the linear driving assembly and part of the shaft body are arranged in the casing; the rotation driving assembly comprises a first stator structure and a first mover structure, the first stator structure is arranged on the machine shell, the first mover structure is arranged on the outer wall of the shaft body, and the first stator structure is arranged on the outer side of the first mover structure in a sleeving mode and used for driving the first mover structure to drive the shaft body to rotate in the circumferential direction; the linear driving assembly comprises a second stator structure and a second mover structure, the second stator structure is arranged on the machine shell, the second mover structure is arranged on the outer wall of the shaft body, and the second stator structure is located on one side of the second mover structure and used for driving the second mover structure to drive the shaft body to axially move. The device is high in integration degree, integrates the functions of linear motion, rotary motion, material suction and the like, and can reduce the occupied space of equipment and reduce the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a motor drive structure and a motor. Background Art

[0002] In some production scenarios, parts need to be moved linearly or rotationally. For example, when processing circuit boards, the adsorption device absorbs electronic components and moves them accordingly. The movement steps include horizontal movement, lifting movement (vertical linear movement) and rotational movement, etc. Different driving devices are required for lifting movement and rotational movement.

[0003] That is, when the functions of lifting and rotating movement are met, at least two driving devices are included. This method not only increases the size of the equipment and increases the space it occupies, but also increases the investment cost and operating cost of the equipment. Utility Model Content

[0004] In order to solve at least the above technical problems existing in the prior art, the utility model provides a motor drive structure and a motor.

[0005] On the one hand, the utility model provides a motor drive structure, including a casing, a shaft, a rotary drive assembly and a linear drive assembly, the rotary drive assembly, the linear drive assembly and part of the shaft are arranged in the casing; the rotary drive assembly includes a first stator structure and a first mover structure, the first stator structure is arranged on the casing, the first mover structure is arranged on the outer wall of the shaft, and the first stator structure is sleeved on the outer side of the first mover structure, for driving the first mover structure to drive the shaft to rotate circumferentially; the linear drive assembly includes a second stator structure and a second mover structure, the second stator structure is arranged on the casing, the second mover structure is arranged on the outer wall of the shaft, and the second stator structure is located on one side of the second mover structure, for driving the second mover structure to drive the shaft to move axially.

[0006] In some embodiments, the first stator structure includes a first stator core and a first winding, the first stator core is cylindrical, the outer wall of the first stator core is connected to the inner wall of the casing, and the first winding is arranged on the first stator core; the first winding is connected to a power supply, and the first winding is energized to generate a first electromagnetic field, and the first moving structure is driven by the first electromagnetic field to drive the shaft to rotate circumferentially.

[0007] In some embodiments, the first mover structure includes a first annular permanent magnet, which is sleeved on the shaft and fixedly connected to the outer wall of the shaft.

[0008] In some embodiments, the second stator structure includes a second stator core and a second winding, one or more second windings are arranged on the second stator core along the axial direction of the housing, and the second mover structure includes a plurality of magnetic parts, the plurality of magnetic parts are arranged along the axial direction of the shaft and radially magnetized, and the magnetic poles of adjacent magnetic parts facing one end of the second stator core are different; the second winding is connected to a power supply, and the second winding is energized to generate a second electromagnetic field, and the second electromagnetic field drives the second mover structure to drive the shaft to move axially.

[0009] In some embodiments, the magnet member includes a second annular permanent magnet, which is sleeved on the shaft and fixedly connected to the outer wall of the shaft; a plurality of the second annular permanent magnets have a set length along the axial direction of the shaft.

[0010] In some embodiments, two groups of the second stator core and the second winding are included, and the two groups of the second stator core and the second winding are symmetrically arranged with the axis of the shaft as the center; the magnetic poles of the magnetic member facing the two ends of the two groups of the second stator core and the second winding are the same.

[0011] In some embodiments, a detection structure is further included, and the detection structure is arranged in the housing; the detection structure is used to detect the circumferential rotation angle and / or axial movement distance of the shaft body.

[0012] On the other hand, the present invention further provides a motor, comprising the above-mentioned motor drive structure.

[0013] On another aspect, the present invention further provides a motor, comprising the above-mentioned motor drive structure; the shaft body comprises a hollow through hole passing through along the axis, and the hollow through hole is used to connect to the adsorption device.

[0014] In some embodiments, an air pipe and a suction nozzle are further included, wherein the air pipe is connected to one end of the shaft, and the suction nozzle is connected to the other end of the shaft.

[0015] The present invention provides a motor drive structure and a motor, wherein a rotary drive assembly and a linear drive assembly are connected to the shaft. The rotary drive assembly can drive the shaft to rotate circumferentially, and the linear drive assembly can drive the shaft to move axially. Thus, the motor has both rotation and telescopic functions, that is, two functions can be achieved using a single motor drive structure. This novel technical solution provides a multifunctional motor drive structure. When applied to a scenario requiring both rotation and lifting (telescopic), this can be achieved using a single motor drive structure. It has a high degree of integration, integrating functions such as linear motion, rotary motion, and material suction. In practical applications, this can reduce the space occupied by the equipment and reduce the investment cost of the application equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0017] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0018] Figure 1 A schematic diagram of the structure of the motor drive structure provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the structure inside the housing of the motor drive structure provided by an embodiment of the utility model;

[0020] Figure 3 A cross-sectional view of a motor drive structure provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic structural diagram of a rotary drive assembly in a motor drive structure provided by an embodiment of the present utility model;

[0022] Figure 5 A schematic structural diagram of a linear drive assembly in a motor drive structure provided by an embodiment of the present utility model;

[0023] Figure 6 This is a schematic structural diagram of a motor provided in an embodiment of the present utility model.

[0024] In the picture:

[0025] 10: Housing; 20: Shaft; 30: Rotary drive assembly; 40: Linear drive assembly; 50: Air pipe; 60: Suction nozzle;

[0026] 31: first stator structure; 311: first stator core; 312: first winding; 32: first mover structure; 321: first annular permanent magnet;

[0027] 41: second stator structure; 411: second stator core; 412: second winding; 42: second mover structure; 421: magnet member; 4211: second annular permanent magnet. DETAILED DESCRIPTION

[0028] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0029] An embodiment of the present utility model provides a motor drive structure, including a housing, a shaft, a rotary drive assembly and a linear drive assembly, wherein the rotary drive assembly, the linear drive assembly and part of the shaft are arranged in the housing; the shaft is driven axially by the linear drive assembly, and the shaft is driven axially by the rotary drive assembly, so that the motor drive structure can meet both rotational and linear movement drive modes.

[0030] The following describes in detail the various structures in the motor drive structure provided by the embodiment of the present invention, as well as the positional relationship and connection relationship between the various structures, in conjunction with the accompanying drawings.

[0031] like Figures 1 to 5 As shown, the rotary drive assembly 30 includes a first stator structure 31 and a first mover structure 32. The first stator structure 31 is disposed on the housing 10, and the first mover structure 32 is disposed on the outer wall of the shaft body 20. The first stator structure 31 is sleeved outside the first mover structure 32, and is used to drive the first mover structure 32 to drive the shaft body 20 in circumferential rotation. The operation of the first stator structure 31 and the second mover structure 42 is similar to the drive method of a traditional rotary motor. Specifically, the first mover structure 32 is connected to the shaft body 20. When the first mover structure 32 rotates, it can drive the shaft body 20 to rotate synchronously.

[0032] Specifically, the first stator structure 31 includes a first stator core 311 and a first winding 312. The first stator core 311 is cylindrical, with its outer wall connected to the inner wall of the housing 10. The first winding 312 is disposed on the first stator core 311. The first winding 312 is connected to a power source. When energized, it generates a first electromagnetic field, which drives the first mover structure 32 to rotate the shaft 20 circumferentially. When current passes through the first winding 312, it generates a first electromagnetic field around the first stator core 311, causing the teeth of the first stator core 311 to become equivalent to the magnetic poles of a magnet. The alternating first electromagnetic field causes the polarity of the teeth of the first stator core 311 to alternate, interacting with the permanent magnets in the first mover structure 32. Based on the principle that like charges repel and opposite charges attract, the first mover structure 32 is driven to rotate, thereby achieving the purpose of rotating the shaft 20 circumferentially.

[0033] In the motor drive structure provided by the embodiment of the present invention, the two driving modes of rotation and linear movement operate independently and not synchronously; that is, linear movement is not possible during rotation, and rotation is not possible during linear movement.

[0034] The linear drive assembly 40 includes a second stator structure 41 and a second mover structure 42. The second stator structure 41 is arranged on the housing 10, and the second mover structure 42 is arranged on the outer wall of the shaft body 20. The second stator structure 41 is located on one side of the second mover structure 42 and is used to drive the second mover structure 42 to drive the shaft body 20 to move axially.

[0035] Specifically: the second stator structure 41 includes a second stator core 411 and a second winding 412. One or more second windings 412 are arranged on the second stator core 411 along the axial direction of the casing 10. The second mover structure 42 includes a plurality of magnet parts 421. The plurality of magnet parts 421 are arranged along the axial direction of the shaft 20 and are radially magnetized. In addition, the magnetic poles of adjacent magnet parts 421 facing one end of the second stator core 411 are different; the second winding 412 is connected to a power supply, and the second winding 412 is energized to generate a second electromagnetic field, which drives the second mover structure 42 to drive the shaft 20 to move axially through the second electromagnetic field.

[0036] For example, the number of magnetic elements 421 is greater than the number of second windings 412. For example, as shown in the figure, four magnetic elements 421 are provided on the shaft 20, and three second windings 412 are provided on the second stator core 411. The driving principle between the second stator structure 41 and the second mover structure 42 is also based on the principle that like poles repel and opposite poles attract. When current is passed through one of the second windings 412, a magnetic field is generated around the second winding 412 at that location. If the magnetic poles of the magnetic elements 421 corresponding to the second winding 412 are the same, the principle of like poles repel will drive the shaft 20 to move, causing the adjacent magnetic elements 421 with opposite magnetic poles on the shaft 20 to correspond to the second winding 412. Then, the adjacent second winding 412 is energized, causing the second winding 412 to move to the position of the magnetic element 421 with opposite polarity. The above action is repeated, thereby achieving the purpose of driving the shaft 20 to move axially.

[0037] The number of the magnets 421 on the shaft 20 and their length along the axis determine the distance that the shaft 20 can move.

[0038] In this embodiment of the present invention, the motor drive structure includes two sets of second stator cores 411 and second windings 412, symmetrically arranged around the axis of the shaft 20. The magnets 421 have the same magnetic poles facing both ends of the two sets of second stator cores 411 and second windings 412. The symmetrical arrangement of the two sets of second stator cores 411 and second windings 412 relative to the same second mover structure 42 facilitates the shaft 20's axial rotation.

[0039] Continue to refer Figures 1 to 5 As shown, in the embodiment of the present invention, the first mover structure 32 includes a first annular permanent magnet 321, which is sleeved on the shaft body 20 and fixedly connected to the outer wall of the shaft body 20; the magnet part 421 includes a second annular permanent magnet 4211, which is sleeved on the shaft body 20 and fixedly connected to the outer wall of the shaft body 20; the multiple second annular permanent magnets 4211 have a set length along the axial direction of the shaft body 20.

[0040] The first mover structure 32 and the second mover structure 42 are made of permanent magnet material. The stator structure made of permanent magnet material can generate a stable magnetic field, so that the magnetic poles of the mover structure are stable, thereby improving the stability during rotation or linear movement. In addition, permanent magnets have the advantages of small size and light weight, which is beneficial to the miniaturization and lightweighting of the motor drive structure and the motor.

[0041] In the embodiment of the present invention, the motor drive structure further includes a detection structure, which is disposed in the housing 10 ; the detection structure is used to detect the circumferential rotation angle and / or axial movement distance of the shaft body 20 .

[0042] For example, the detection structure may include multiple detection structures, each for detecting the circumferential rotation angle and the axial movement distance. For example, the detection structure may include a distance sensor, which acquires information about the axial movement distance of the shaft body 20 via the distance sensor; or, for example, the detection structure may include a Hall effect sensor, which is disposed on or near the first stator structure 31 and detects information about the circumferential rotation angle of the shaft body 20 via the Hall effect sensor.

[0043] The present invention also provides a motor including the above motor drive structure. The motor further includes a functional component, one end of the shaft 20 is located outside the housing 10, and the end is connected to the functional component. The motor housing 10 controls the linear movement or rotation of the functional component.

[0044] For example, the functional component is a clamping piece, which is used to clamp a workpiece, and the motor can drive the clamping piece to move linearly or rotate.

[0045] like Figure 6As shown, the present invention provides a motor including the aforementioned motor drive structure; the shaft body 20 includes a hollow through-hole extending along its axis, the hollow through-hole being used to connect to a suction device. For example, the motor includes an air pipe 50 and a suction nozzle 60, the air pipe 50 being connected to one end of the shaft body 20, and the suction nozzle 60 being connected to the other end of the shaft body 20.

[0046] The hollow through hole is connected to a vacuum generating device via an air pipe 50 , forming a vacuum environment in the hollow through hole, and then the suction nozzle 60 can be used to suck the workpiece to achieve linear movement or rotation of the workpiece.

[0047] The present invention provides a motor drive structure and a motor, wherein a rotary drive assembly 30 and a linear drive assembly 40 are connected to a shaft 20. The rotary drive assembly 30 can drive the shaft 20 to rotate circumferentially, and the linear drive assembly 40 can drive the shaft 20 to move axially. Therefore, the motor has the functions of rotation and telescopic movement, that is, two functions can be achieved using one motor drive structure. The present invention uses a novel technical solution, and the motor drive structure is multifunctional. When applied to a use scenario with rotation and lifting (telescopic) requirements, it can be achieved through one motor drive structure. It has a high degree of integration, integrating functions such as linear motion, rotary motion, and material suction. In actual application, it can reduce the space occupied by the equipment and reduce the investment cost of the application equipment.

[0048] In the description of this specification, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0050] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A motor drive structure, characterized in that: The invention comprises a housing (10), a shaft (20), a rotary drive assembly (30) and a linear drive assembly (40), wherein the rotary drive assembly (30), the linear drive assembly (40) and a part of the shaft (20) are arranged in the housing (10); The rotary drive assembly (30) comprises a first stator structure (31) and a first mover structure (32), wherein the first stator structure (31) is provided on the housing (10), and the first mover structure (32) is provided on the outer wall of the shaft body (20), and the first stator structure (31) is sleeved on the outer side of the first mover structure (32) and is used to drive the first mover structure (32) to drive the shaft body (20) to rotate circumferentially; The linear drive assembly (40) includes a second stator structure (41) and a second mover structure (42), wherein the second stator structure (41) is provided on the housing (10), and the second mover structure (42) is provided on the outer wall of the shaft body (20), and the second stator structure (41) is located on one side of the second mover structure (42) and is used to drive the second mover structure (42) to drive the shaft body (20) to move axially.

2. The motor drive structure according to claim 1, characterized in that: The first stator structure (31) comprises a first stator core (311) and a first winding (312); the first stator core (311) is cylindrical; the outer wall of the first stator core (311) is connected to the inner wall of the housing (10); and the first winding (312) is provided on the first stator core (311); The first winding (312) is connected to a power source, and when the first winding (312) is energized, a first electromagnetic field is generated, and the first movable structure (32) is driven by the first electromagnetic field to drive the shaft (20) to rotate circumferentially.

3. The motor drive structure according to claim 2, characterized in that: The first movable structure (32) comprises a first annular permanent magnet (321), which is sleeved on the shaft (20) and fixedly connected to the outer wall of the shaft (20).

4. The motor drive structure according to claim 1, characterized in that: The second stator structure (41) comprises a second stator core (411) and a second winding (412), one or more second windings (412) are arranged on the second stator core (411) along the axial direction of the housing (10), and the second mover structure (42) comprises a plurality of magnets (421), the plurality of magnets (421) are arranged along the axial direction of the shaft (20) and are magnetized radially, and adjacent magnets (421) have different magnetic poles facing one end of the second stator core (411); The second winding (412) is connected to a power source, and when the second winding (412) is energized, a second electromagnetic field is generated, and the second mover structure (42) is driven by the second electromagnetic field to drive the shaft (20) to move axially.

5. The motor drive structure according to claim 4, characterized in that: The magnet part (421) includes a second annular permanent magnet (4211), and the second annular permanent magnet (4211) is sleeved on the shaft (20) and fixedly connected to the outer wall of the shaft (20); The plurality of second annular permanent magnets (4211) have a set length along the axial direction of the shaft (20).

6. The motor drive structure according to claim 5, characterized in that: The invention comprises two groups of the second stator core (411) and the second winding (412), wherein the two groups of the second stator core (411) and the second winding (412) are symmetrically arranged with the axis of the shaft (20) as the center; The magnetic poles of the magnet part (421) facing two groups of the second stator cores (411) and two ends of the second winding (412) are the same.

7. The motor drive structure according to any one of claims 1 to 6, characterized in that: It also includes a detection structure, which is arranged in the housing (10); The detection structure is used to detect the circumferential rotation angle and / or axial movement distance of the shaft body (20).

8. A motor, characterized in that: The motor drive structure comprises the motor drive structure according to any one of claims 1 to 7.

9. A motor, characterized in that: comprising a motor drive structure according to any one of claims 1 to 7; The shaft body (20) comprises a hollow through hole extending along the axis, and the hollow through hole is used for connecting an adsorption device.

10. The motor according to claim 9, characterized in that It also includes an air pipe (50) and a suction nozzle (60), wherein the air pipe (50) is connected to one end of the shaft body (20), and the suction nozzle (60) is connected to the other end of the shaft body (20).

Images