CN211508867U

CN211508867U - Double-motion motor

Info

Publication number: CN211508867U
Application number: CN202020443804.XU
Authority: CN
Inventors: 曾凯; 张栋
Original assignee: Shanghai Mingzhi Paibosi Automation Technology Co ltd
Current assignee: Shanghai Mingzhi Paibosi Automation Technology Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-09-15
Anticipated expiration: 2030-03-31

Abstract

The utility model relates to a double-motion motor, including the part that provides rotary motion, the part that provides linear motion and connecting end cover, rotary motion drive section include front end shield first, stator first, rotor first, pivot first and rear end shield first, pivot first penetrate front end shield first, rotor first and rear end shield first in proper order, stator first establish in the rotor first outside, and lie in front end shield first and rear end shield first between; the linear motion drive part include stator second, rotor second, front end housing second, pivot second and rear end housing second, pivot first be equipped with the through-hole that is used for pivot second to shuttle around the axial, pivot second penetrate through-hole, connection end housing, front end housing second, rotor second and rear end housing second of pivot second in proper order, stator second establish in the rotor second outside to be located between front end housing second and the rear end housing second. Compared with the prior art, the utility model has the advantages of can reduce the volume of machine and equipment greatly.

Description

Double-motion motor

Technical Field

The utility model relates to a motor especially relates to a two motion motors.

Background

For increasingly developed automation and robot industry applications, a motor capable of compactly combining two motion modes of rotation and linear motion is urgently needed to help a customer realize linkage of rotation and linear motion in a very small space range.

For such application requirements, there is no mature solution in the market at present, and users often use two separate motors to realize the rotation and linear motion separately.

The retrieved Chinese patent publication No. CN209627138U discloses a motor capable of outputting axial linear motion and circumferential rotation motion with multiple degrees of freedom, which specifically comprises a shell, a stator assembly, a rotor assembly and a lead screw, wherein the stator assembly, the rotor assembly and the lead screw are arranged in the shell; be equipped with on stator module's the inner ring with stator armature assorted rotor subassembly, the rotor subassembly inner ring with the lead screw phase-match, the end of lead screw is equipped with the elastic component, the end of rotor subassembly is equipped with the pinhole, elastic component and pinhole phase-match, this motor with axial rectilinear motion and circumference rotary motion integrated an organic whole, and when axial rectilinear motion arrived specific position, the convertible circumference rotary motion that is, but this patent has following problem:

1) the linear motion or the rotary motion can not be completed in the whole stroke section, only the limiting mechanism is utilized, the linear motion is performed in a certain section of stroke, and when the linear motion or the rotary motion is moved to a specific position, the linear motion or the rotary motion is changed into the rotary motion through the triggering of the limiting shaft and the pin.

2) The decoupling of the rotational freedom degree and the linear freedom degree is not really achieved in the patent and a plurality of patents on the market, the motion of any combination of rotational motion and linear motion cannot be simultaneously completed in a limited space, and the application occasions are very limited

3) The patent and a plurality of patents on the market only have a set of stator and rotor magnetic fields to carry out magnetic field reaction, and flexible motion configuration with different speeds and different accelerations of rotational freedom and linear freedom cannot be realized.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a dual motion motor for overcoming the above-mentioned drawbacks of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

a double-motion motor comprises a rotary motion driving part, a linear motion driving part and a connecting end cover, wherein the rotary motion driving part comprises a front end cover A, a stator A, a rotor A, a rotating shaft A and a rear end cover A;

the linear motion drive part include stator second, rotor second, front end housing second, pivot second and rear end housing second, pivot first be equipped with the through-hole that is used for pivot second to shuttle around the axial, pivot second penetrate through-hole, connection end housing, front end housing second, rotor second and rear end housing second of pivot second in proper order, stator second establish in the rotor second outside to be located between front end housing second and the rear end housing second.

Preferably, the rotating shaft B is a threaded shaft, and the surface of the rotating shaft B is provided with an external thread.

Preferably, the rotor B is internally provided with an internal thread matched with the external thread of the rotating shaft B.

Preferably, the stator A and the rotor A generate electromagnetic action under the action of the driver, so that the rotor A performs rotary motion, and the rotating shaft A is further driven to perform rotary motion;

the stator B and the rotor B generate electromagnetic action under the action of the driver, so that the rotor B performs rotary motion, when the rotor B rotates, the rotating shaft B with external threads can perform front-and-back motion along the axial direction of the motor, and the rotating shaft B can pass through the insides of the rotors of the two motion parts of the rotary motion driving part and the linear motion driving part during motion.

Preferably, the rear end cover A, the connecting end cover and the front end cover B are of an integral structure, or the rear end cover A and the connecting end cover are of an integral structure, or the connecting end cover and the front end cover B are of an integral structure.

Preferably, the clearance between the rotating shaft A and the rotating shaft B is more than 0.02 mm.

Preferably, the concentricity between the rotating shaft A and the rotating shaft B is less than 0.5 mm.

Preferably, the connecting end cover is provided with a circular boss which is matched with a groove on the rear end cover A or the front end cover B.

Preferably, the connecting end cover is provided with a circular groove which is matched with a boss on the rear end cover A or the front end cover B.

Compared with the prior art, the utility model has the advantages of it is following:

1) in a traditional structure, two motors are generally used for realizing the rotating and linear two-degree-of-freedom operation functions of a certain workpiece, one stepping motor is generally used for directly driving rotating motion, the other stepping motor converts the rotating motion into linear motion in transmission modes such as belt pulley matching and the like, and in geometric spatial distribution, the two motors generally form two shafts which are distributed at different positions of equipment or instruments. This results in a bulky device, which takes up a lot of space. And the utility model discloses on spatial distribution with two degrees of freedom of motion integrated to an epaxial, can reduce the volume of machine and equipment greatly. Through the aassessment, at the output shaft end, through adopting two motion motor structure, can practice thrift the volume space more than 50%.

2) In the conventional design, since the rotary motion and the linear motion are arranged using two separate shafts, the rotary motion and the linear motion can be performed separately when the conveyed workpiece is subjected to the rotary motion and the linear motion once. And the utility model discloses the technical scheme that describes can accomplish rotary motion and straight line action together when removing the work piece, accomplish the work piece simultaneously and snatch or bulldoze equal straight line action, can improve equipment's work efficiency to a great extent, use this product when the equipment of high frequency motion, its efficiency promotes and can reach more than 20%.

3) The utility model discloses to have carried out two into one originally separately the motor, can reduce repeated adapting unit in the axial to practice thrift the manufacturing cost of product, material and manufacturing cost that the product can be practiced thrift are more than 15%.

Drawings

Fig. 1 is a sectional view of embodiment 1 of the present invention;

fig. 2 is an external view of embodiment 1 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

The utility model relates to a can realize the motor of two degree of freedom motions of straight line and rotation simultaneously, including linear motion drive section, rotary motion drive section and connection end cover 5, rotary motion drive section include front end housing first 1, stator first 2, rotor first 3, pivot first 4 and rear end housing first 8, pivot first 4 penetrate front end housing first 1, rotor first 3 and rear end housing first 8 in proper order, stator first 2 establish in the rotor first 3 outside, and lie in between front end housing first 1 and the rear end housing first 8;

the linear motion drive part include stator second 6, rotor second 7, front end housing second 9, pivot second 10 and rear end housing second 11, pivot first 4 be equipped with the through-hole that is used for pivot second 10 to shuttle around along the axial, pivot second 10 penetrate pivot second 10's through-hole, connect end cover 5, front end housing second 9, rotor second 7 and rear end housing second 11 in proper order, stator second 6 establish in rotor second 7 outside to be located between front end housing second 9 and the rear end housing second 11.

The rotating shaft B10 is a threaded shaft, and the surface of the rotating shaft B is provided with external threads. And an internal thread matched with the external thread of the rotating shaft B10 is arranged in the rotor B7.

The utility model discloses an operating principle does, stator first 2 and rotor first 3 produce the electromagnetic action under the effect of driver to make rotor first 3 carry out rotary motion, when rotor first 3 carries out rotary motion, can drive pivot first 4 and carry out rotary motion, thereby realize corresponding rotational degree of freedom. Stator second 6 and rotor second 7 produce the electromagnetic action under the effect of driver to make rotor second 7 carry out rotary motion, because rotor second 7 and pivot second 10 between mutually support through internal thread and external screw thread, when rotor second 7 rotated, pivot second 10 that has the external screw thread can carry out along the axial fore-and-aft movement of motor, can drive the load and realize the straight line degree of freedom.

And the gap between the rotating shaft A4 and the rotating shaft B10 is larger than 0.02 mm. The concentricity between the rotating shaft A4 and the rotating shaft B10 is less than 0.5 mm.

The connecting end cover 5 is provided with a circular boss which is matched with a groove on the rear end cover A8 or the front end cover B9.

The connecting end cover 5 is provided with a circular groove which is matched with a boss on the rear end cover A8 or the front end cover B9.

When the motor moves, the following movement mode combination can be generated:

state of motion	Rotating movement	Linear motion
			1	Stop	Forward direction
2	Stop	To the rear
			3	Rotate clockwise	Stop
4	Rotate clockwise	Forward direction
			5	Rotate clockwise	To the rear
6	Rotate counterclockwise	Stop
			7	Rotate counterclockwise	Forward direction
8	Rotate counterclockwise	To the rear

Example 2

For the structure of the embodiment 1, there is also a preferable implementation mode, that is, the rear end cover a 8, the connecting end cover 5 and the front end cover b 9 are designed into an integral structure, and the integral structure combines the original 3 parts into one part, so that the cost can be reduced, and the volume can be reduced.

Example 3

For the structure of the embodiment 1, there is also a preferable implementation mode, that is, the rear end cover 8 and the connecting end cover 5 are designed into an integral structure, and the integral structure integrates the original 2 parts into one part, so that the cost can be reduced, and the volume can be reduced.

Example 4

For the structure of the embodiment 1, there is also a preferable implementation mode, that is, the connecting end cover 5 and the front end cover b 9 are designed into an integral structure, and the integral structure integrates the original 2 parts into one part, so that the cost can be reduced, and the volume can be reduced.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The double-motion motor is characterized by comprising a rotary motion driving part, a linear motion driving part and a connecting end cover (5), wherein the rotary motion driving part comprises a front end cover A (1), a stator A (2), a rotor A (3), a rotating shaft A (4) and a rear end cover A (8), the rotating shaft A (4) sequentially penetrates through the front end cover A (1), the rotor A (3) and the rear end cover A (8), and the stator A (2) is arranged on the outer side of the rotor A (3) and is positioned between the front end cover A (1) and the rear end cover A (8);

the linear motion drive part include stator second (6), rotor second (7), front end housing second (9), pivot second (10) and rear end housing second (11), pivot first (4) be equipped with and be used for pivot second (10) along the axial through-hole of shuttle motion around, pivot second (10) penetrate through-hole, connection end cap second (5), front end housing second (9), rotor second (7) and rear end housing second (11) of pivot second (10) in proper order, stator second (6) establish in rotor second (7) the outside to be located between front end housing second (9) and rear end housing second (11).

2. A dual motion machine as claimed in claim 1, wherein the shaft b (10) is a threaded shaft with external threads on its surface.

3. A double movement machine according to claim 2, characterized in that the rotor b (7) is internally provided with an internal thread matching with the external thread of the rotating shaft b (10).

4. A double-movement motor as claimed in claim 1, wherein the stator (2) and the rotor (3) are electromagnetically operated under the action of the driver, so that the rotor (3) performs a rotational movement, and the rotor (4) is further driven to perform a rotational movement;

the stator B (6) and the rotor B (7) generate electromagnetic action under the action of the driver, so that the rotor B (7) performs rotary motion, when the rotor B (7) rotates, a rotating shaft B (10) with external threads can perform front-and-back motion along the axial direction of the motor, and the rotating shaft B (10) can pass through the insides of the rotors of two motion parts, namely a rotary motion driving part and a linear motion driving part, during motion.

5. A dual motion electric machine as claimed in claim 1, wherein the rear cover a (8), the connecting cover b (5) and the front cover b (9) are of an integral structure, or the rear cover a (8) and the connecting cover b (5) are of an integral structure, or the connecting cover b (5) and the front cover b (9) are of an integral structure.

6. A dual motion machine as claimed in claim 1, wherein the gap between the first (4) and second (10) shafts is greater than 0.02 mm.

7. A dual motion machine as claimed in claim 1, wherein the concentricity between the first (4) and second (10) shafts is less than 0.5 mm.

8. A dual motion machine as claimed in claim 1, wherein the connection end cap (5) has a circular boss which mates with a recess in the rear end cap a (8) or the front end cap b (9).

9. A dual motion machine as claimed in claim 1, wherein the connection end cap (5) has a circular recess for engagement with a boss on the rear end cap a (8) or the front end cap b (9).