CN116111801A - Actuator with linear and rotary motion - Google Patents

Actuator with linear and rotary motion Download PDF

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Publication number
CN116111801A
CN116111801A CN202310164611.9A CN202310164611A CN116111801A CN 116111801 A CN116111801 A CN 116111801A CN 202310164611 A CN202310164611 A CN 202310164611A CN 116111801 A CN116111801 A CN 116111801A
Authority
CN
China
Prior art keywords
rod body
linear
sliding seat
actuator
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310164611.9A
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Chinese (zh)
Inventor
黄安杰
谭俊源
廖炜荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Zengguang Intelligent Technology Co ltd
Original Assignee
Foshan Zengguang Intelligent Technology Co ltd
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Publication date
Application filed by Foshan Zengguang Intelligent Technology Co ltd filed Critical Foshan Zengguang Intelligent Technology Co ltd
Priority to CN202310164611.9A priority Critical patent/CN116111801A/en
Publication of CN116111801A publication Critical patent/CN116111801A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/22—Optical devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Linear Motors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to an actuator with linear and rotary motions, which comprises a shell, wherein a tubular linear motor, a rotary motor, a measurement feedback device, a linear motion mechanism, a circuit board, an air channel and a rod body are arranged in the shell; when the rod body is lifted and rotated, the first air hole is always positioned in the air cavity, so that the air cavity can be always communicated with the hollow inner cavity of the rod body, the lower port of the second air hole of the rod body can be used for air inlet or air exhaust, release force or adsorption force is generated, the rod body has the effects of rotating, lifting and ventilating at the same time, the rod body is lifted and lowered by utilizing the tubular linear motor, the actuator has the characteristics of large stroke up to 200mm, large thrust and high-precision closed-loop control, and the application range of the actuator is wider.

Description

Actuator with linear and rotary motion
Technical Field
The present invention relates to an actuator having linear and rotational movements.
Background
The existing actuators with linear and rotary motions generally adopt a motor to drive a screw rod to complete linear motion or utilize a servo motor or a stepping motor to drive a rotary spline screw rod to complete linear and rotary motions.
But with the structure, the product has larger volume and low linear motion efficiency, and the precision of linear motion and rotary motion can only be controlled by a motor, so that closed-loop driving can not be realized.
Further, if the linear motion is completed by using the tubular linear motor, the driving mode has the phenomenon of less thrust and instability when the working stroke exceeds 200 mm.
Disclosure of Invention
The invention aims to provide an actuator with large stroke, large thrust and high precision, which is provided with linear and rotary motions.
The purpose of the invention is realized in the following way:
an actuator with linear and rotary motions comprises a shell, wherein a tubular linear motor, a rotary motor, a measurement feedback device, a linear motion mechanism, a circuit board, an air passage and a rod body are arranged in the shell, the tubular linear motor comprises a stator and a rotor, the stator is provided with a rotor sliding channel, the rotor stretches into the rotor sliding channel, and the end part of the rotor stretches out of the rotor sliding channel;
the rod body is internally provided with a hollow cavity, the side wall of the rod body is provided with a first air hole communicated with the hollow cavity, and the bottom end of the rod body is provided with a second air hole communicated with the hollow cavity;
the linear motion mechanism comprises a guide rail and a slide seat, the slide seat is arranged on the guide rail in a sliding manner, and the slide rail limits the sliding direction of the slide seat;
the sliding seat is provided with a sliding channel and an air pipeline, sealing rings are respectively arranged at the ports of the sliding channel, the rotating motor is arranged in the sliding seat, the rod body is arranged in the sliding channel, the upper end of the rod body penetrates through the sealing rings and extends out of the sliding channel to be connected with an output shaft of the rotating motor, the lower end of the rod body penetrates through the sealing rings and extends out of the machine shell, and the rotating motor drives the rod body to rotate;
the sealing ring, the rod body and the sliding channel form an air cavity in a surrounding mode, the air cavity is communicated with one port of the air pipeline, the shell is provided with an air port, the air channel is arranged in the inner cavity of the shell, one port of the air channel is connected with the air port, and the other port of the air channel is connected with the other port of the air pipeline;
the rotor is connected with the sliding seat, and drives the sliding seat, the rotating motor and the rod body to linearly move along the direction of the guide rail;
the measuring feedback device comprises a detecting head and a scale, the scale is arranged on the sliding seat or the shell, the detecting head is arranged on the shell or the sliding seat and is in contact with the scale, and the tubular linear motor, the rotating motor and the measuring feedback device are respectively and electrically connected with the circuit board.
When the rod body is lifted and rotated, the first air hole is always positioned in the air cavity, so that the air cavity can be always communicated with the hollow inner cavity of the rod body, the lower port of the second air hole of the rod body can be used for air inlet or air exhaust, release force or adsorption force is generated, the rod body has the effects of rotating, lifting and ventilating at the same time, the rod body is lifted and lowered by utilizing the tubular linear motor, the actuator has the characteristics of large stroke up to 200mm, large thrust and high-precision closed-loop control, and the application range of the actuator is wider.
The aim of the invention can be also solved by adopting the following technical measures:
further, the device also comprises an elastic piece, one end of the elastic piece is connected with the shell, the other end of the elastic piece is connected with the sliding seat, and the elastic piece forms a resetting mechanism of the sliding seat. The elastic piece forms a reset mechanism of the sliding seat, when the rod body needs to extend out of the shell, the tubular linear motor needs to overcome the elastic force of the elastic piece, so that the rod body is forced to move downwards, when the rod body needs to retract into the shell, the tubular linear motor and the elastic piece are driven to retract into the shell rapidly under the combined action of the tubular linear motor and the elastic piece, the rod body is enabled to retract rapidly, the function of pushing the sliding seat to move upwards is achieved, the sliding seat is prevented from falling down due to the action of gravity, the rod body is prevented from sliding downwards, and the lifting precision of the rod body is greatly improved.
Further, the rotary electric machine further comprises a coupler, wherein the coupler is arranged on an output shaft of the rotary electric machine, and the upper end of the rod body is connected with the coupler. The rotating motor is connected with the rod body through the coupler, the rotating motor can directly drive the rod body to rotate, the transmission efficiency is higher, and the coupler is small in size, so that the equipment size is effectively reduced.
Further, the sliding seat is provided with an upper mounting groove at the upper port of the sliding channel, the upper mounting groove is internally provided with a sealing ring and a bearing, the lower mounting groove is arranged at the lower port of the sliding channel, the sealing ring and the bearing are arranged in the lower mounting groove, the upper end of the rod body sequentially penetrates through the sealing ring and the bearing to extend outwards, and the lower end of the rod body sequentially extends out of the sealing ring and the bearing to extend outwards. The bearing is arranged in the tubular linear motor, the bearing is sleeved on the rod body, the rotating effect of the rod body is improved, the rod body is prevented from being deviated, and the rotating function of the rod body is realized.
Further, the sealing ring is a rotary sealing ring. Because the rotary sealing ring is adopted, air leakage of the air cavity is avoided, and the practicability of the air passage structure of the actuator is improved.
Further, the movable element is further provided with an upper buffer rubber pad, the sliding seat extends out of the connecting portion towards the direction of the movable element, the movable element is connected with the connecting portion, and the upper buffer rubber pad is arranged on the surface of the connecting portion or at the bottom of the sliding seat. When the sliding seat slides up in place, namely the rod body slides up in place, the upper buffer rubber cushion arranged on the connecting part is propped against the stator to play a role in buffering, so that abnormal sound is avoided when the sliding seat and the stator are hard to collide, noise in the operation process of the actuator is reduced, noise is avoided when the sliding block is collided in the ascending process, and the upper buffer rubber cushion effectively buffers the impact force of the sliding block in the ascending process, so that the service life of the actuator is greatly prolonged.
Further, the device also comprises a lower buffer rubber cushion, wherein the lower buffer rubber cushion is arranged at the bottom of the inner cavity of the shell or the bottom of the sliding seat. When the sliding block slides down in place, namely the rod body slides down in place, the lower buffer rubber pad arranged at the bottom of the inner cavity of the shell is propped against the sliding seat to play a role in buffering, so that abnormal sound is avoided from being generated when the sliding seat and the shell are hard to collide, noise in the operation process of the actuator is reduced, the sliding seat is prevented from directly colliding with the shell in the descending process, and the impact force in the descending process of the sliding block is effectively buffered by the lower buffer rubber pad, so that the service life of the actuator is greatly prolonged.
Further, the motor further comprises a flat cable, wherein the flat cable is arranged in the machine shell, one end of the flat cable is connected with the circuit board, and the other end of the flat cable is connected with the rotating motor.
Further, the casing is provided with a communication port for interfacing with a superior controller, and the communication port is electrically connected with the circuit board.
Further, the measurement feedback device is a magnetic grating, the detection head is a magnetic head, the scale is a magnetic scale, the magnetic scale is arranged on the sliding seat or the shell, the magnetic head is arranged on the shell or the sliding seat and is in contact with the magnetic scale, and the tubular linear motor, the rotary motor and the magnetic grating are respectively and electrically connected with the circuit board.
The magnetic grating has the advantages of high precision, simplicity in copying, convenience in installation and adjustment and the like, and has higher stability when used in a working environment with more greasy dirt and dust, the magnetic scale is arranged on the moving block, the magnetic head is contacted with the magnetic scale, and when the moving block is lifted, the magnetic head reads signals of the magnetic scale and feeds the signals back to the circuit board, so that the lifting position of the rod body is obtained, and the high-precision control of the lifting position of the rod body is realized.
Further, the measurement feedback device is a grating, the detection head is a grating head, the scale is a grating ruler, the grating ruler is arranged on the sliding seat or the shell, the grating head is arranged on the shell or the sliding seat and is in contact with the grating ruler, and the tubular linear motor, the rotary motor and the grating are respectively and electrically connected with the circuit board.
The beneficial effects of the invention are as follows:
when the rod body is lifted and rotated, the first air hole is always positioned in the air cavity, so that the air cavity can be always communicated with the hollow cavity of the rod body, the lower port of the second air hole of the rod body can be used for air inlet or air exhaust, release force or adsorption force is generated, the rod body has the effects of rotating, lifting and ventilating at the same time, the rod body is lifted and lowered by utilizing the tubular linear motor, the actuator has the characteristics of large stroke up to 200mm, large thrust and high precision closed-loop control, and the application range of the actuator is wider.
The magnetic grating has the advantages of high precision, simplicity in copying, convenience in installation and adjustment and the like, and has higher stability when used in a working environment with more greasy dirt and dust, the magnetic scale is arranged on the moving block, the magnetic head is contacted with the magnetic scale, and when the moving block is lifted, the magnetic head reads signals of the magnetic scale and feeds the signals back to the circuit board, so that the lifting position of the rod body is obtained, and the high-precision control of the lifting position of the rod body is realized.
Drawings
Fig. 1 is a schematic view of an actuator having a linear, rotational motion.
Fig. 2 is a schematic view of an actuator with linear, rotational motion (with a portion of the housing removed).
Fig. 3 is another angular schematic view (with part of the housing removed) of an actuator with linear, rotational motion.
Fig. 4 is a cross-sectional view of an actuator having a linear, rotational motion.
Fig. 5 is a schematic diagram (gas flow state) of an actuator having a linear and rotary motion.
Fig. 6 is an exploded view of an actuator with linear, rotational motion.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples:
the embodiment, referring to fig. 1 to 6, an actuator with linear and rotary motion comprises a casing 1, wherein a tubular linear motor 2, a rotary motor 3, a measurement feedback device, a linear motion mechanism 5, a circuit board 20, an air channel 6 and a rod body 7 are arranged in the casing 1, the tubular linear motor 2 comprises a stator 21 and a rotor 22, the stator 21 is provided with a rotor sliding channel 521, the rotor 22 extends into the rotor sliding channel 521, and the end part of the rotor 22 extends out of the rotor sliding channel 521;
the rod body 7 is internally provided with a hollow cavity 71, the side wall of the rod body 7 is provided with a first air hole 72 communicated with the hollow cavity 71, and the bottom end of the rod body 7 is provided with a second air hole 73 communicated with the hollow cavity 71;
the linear motion mechanism 5 comprises a guide rail 51 and a sliding seat 52, the sliding seat 52 is seated on the guide rail 51 in a sliding manner, and the sliding rail limits the sliding direction of the sliding seat 52;
the sliding seat 52 is provided with a sliding channel 521 and an air pipeline 522, sealing rings 8 are respectively arranged at the ports of the sliding channel 521, the rotating motor 3 is arranged in the sliding seat 52, the rod body 7 is arranged in the sliding channel 521, the upper end of the rod body 7 penetrates through the sealing rings 8 and extends out of the sliding channel 521 to be connected with an output shaft of the rotating motor 3, the lower end of the rod body 7 penetrates through the sealing rings 8 and extends out of the machine shell 1, and the rotating motor 3 drives the rod body 7 to rotate;
an air cavity 9 is formed by enclosing the sealing ring 8, the rod body 7 and the sliding channel 521, the air cavity 9 is connected with one port of the ventilation pipeline 522, the shell 1 is provided with an air port 11, the air channel 6 is arranged in the inner cavity of the shell 1, one port of the air channel 6 is communicated with the air port 11, and the other port of the air channel 6 is connected with the other port of the ventilation pipeline 522;
the rotor 22 is connected with the sliding seat 52, and the rotor 22 drives the sliding seat 52, the rotating motor 3 and the rod body 7 to linearly move along the direction of the guide rail 51;
in this embodiment, the measurement feedback device is a magnetic grating 4, the magnetic grating 4 includes a magnetic head 41 and a magnetic scale 42, the magnetic scale 42 is disposed on the sliding base 52 or the housing 1, the magnetic head 41 is disposed on the housing 1 or the sliding base 52 and contacts with the magnetic scale 42, and the tubular linear motor 2, the rotary motor 3 and the magnetic grating 4 are electrically connected with the circuit board 20 respectively.
Further, the device also comprises an elastic piece 100, one end of the elastic piece 100 is connected with the shell 1, the other end of the elastic piece 100 is connected with the sliding seat 52, and the elastic piece 100 forms a resetting mechanism of the sliding seat 52.
Further, the motor further comprises a coupling 200, the coupling 200 is arranged on the output shaft of the rotating motor 3, and the upper end of the rod body 7 is connected with the coupling 200.
Further, the sliding seat 52 is provided with an upper mounting groove 400 at the upper port of the sliding channel 521, the upper mounting groove 400 is internally provided with the sealing ring 8 and the bearing 300, the sliding seat 52 is provided with a lower mounting groove at the lower port of the sliding channel 521, the lower mounting groove is internally provided with the sealing ring 8 and the bearing 300, the upper end of the rod body 7 sequentially penetrates through the sealing ring 8 and the bearing 300 to extend outwards, and the lower end of the rod body 7 sequentially extends out of the sealing ring 8 and the bearing 300 to extend outwards.
Further, the sealing ring 8 is a rotary sealing ring 8.
Further, the upper buffer cushion 500 is further included, the slider 52 extends out of the connecting portion 523 toward the mover 22, the mover 22 is connected to the connecting portion 523, and the upper buffer cushion 500 is disposed on the surface of the connecting portion 523 or at the bottom of the slider 52.
Further, a lower cushion rubber 600 is further included, and the lower cushion rubber 600 is disposed at the bottom of the inner cavity of the casing 1 or the bottom of the sliding seat 52.
Further, the electric motor further comprises a flat cable 700, wherein the flat cable 700 is arranged in the machine shell 1, one end of the flat cable 700 is connected with the circuit board 20, and the other end of the flat cable 700 is connected with the rotating motor 3.
Further, the casing 1 is provided with a communication port 12 for interfacing with a superior controller, and the communication port 12 and the circuit board 20 are electrically connected.
Working principle:
when in linear motion:
a linear motor is a transmission device that converts electrical energy directly into linear motion mechanical energy without any intermediate conversion mechanism. It can be seen as a rotary electric machine 3 which is radially split and planar. The linear motors are classified according to types, and can be divided into three types of cylindrical type, U-shaped groove type and flat plate type, wherein the tubular linear motor 2 is one type of cylindrical motor, also called pen type linear motor, and is a small-power miniature push rod lifting (telescopic) motor.
The tubular linear motor 2 is assembled by a driving motor (motor), a gear box (reduction gear), a nut, a guide sleeve, a rotor 22, a stator 21, a pull head, a micro-motion control switch and the like.
The parameters of the tubular linear motor 2 used in different fields are different, and the tubular linear motor is usually developed by adopting customized technical parameters, such as a reduction gear transmission mode, a speed ratio, output torque, output rotating speed, and power, voltage and specification of the motor; parameters such as stroke, noise, precision and the like of the tubular linear motor 22 are custom developed.
In this embodiment, the tubular linear motor 2 works to drive the mover 22 to stretch out and draw back, so that the mover 22 drives the rod 7 to stretch out or retract into the casing 1, and the linear motion mechanism 5 limits the stretching direction of the rod 7, so as to realize rapid lifting of the rod 7, so that the actuator has the advantages of high precision, high thrust and large stroke.
Moreover, the elastic member 100 constitutes a return mechanism of the slider 52, and when the rod 7 needs to extend out of the casing 1, the tubular linear motor 2 needs to overcome the elastic force of the elastic member 100, thereby forcing the rod 7 to move downward.
When the rod body 7 needs to be retracted into the casing 1, the tubular linear motor 2 and the elastic piece 100 drive the rotor 22 to be quickly retracted into the casing 1 under the combined action, so that the quick telescopic function of the rod body 7 is realized, the elasticity of the elastic piece 100 keeps pushing the sliding seat 52 to move upwards all the time, the sliding seat 52 is prevented from falling down due to the action of gravity, the rod body 7 slides downwards, and the lifting precision of the rod body 7 is greatly improved.
Furthermore, the magnetic grating 4 has the advantages of high precision, simple replication, convenient installation and adjustment, and the like, and has higher stability when being used in an operating environment with more greasy dirt and dust, the magnetic scale 42 is arranged on the sliding seat 52, and when the sliding seat 52 is lifted, the magnetic head 41 reads signals of the magnetic scale 42 and feeds the signals back to the circuit board 20, so that the lifting position of the rod body 7 is known, the lifting position control precision of the rod body 7 is improved, and the high precision and closed loop control are completed.
During the rotation movement:
the rotating motor 3 drives the rod body 7 to rotate, the bearing 300 is arranged in the sliding seat 52, the bearing 300 is sleeved on the rod body 7, the rotating effect of the rod body 7 is improved, the rod body 7 is prevented from being deviated, and the rotating function of the rod body 7 is realized.
When gas is supplied and exhausted:
during air supply, an external air source enters the hollow cavity 71 of the rod body 7 along the air port 11, the air passage 6, the air pipeline 522, the air cavity 9 and the first air hole 72, and finally the air is exhausted to the second air hole 73, so that the second air hole 73 generates release force.
During the exhausting process, the external air source exhausts along the second air hole 73, the hollow cavity 71 of the rod body 7, the first air hole 72, the air cavity 9, the air pipeline 522, the air passage 6 and the air port 11, so that the second air hole 73 generates adsorption force.
When the rod body 7 is lifted and rotated, the first air hole 72 is always positioned in the air cavity 9, so that the air cavity 9 can be always communicated with the inner cavity of the rod body 7, and the second air hole 73 (namely, the lower port of the rod body 7) of the rod body 7 can be used for air intake or air exhaust, so that release force or adsorption force is generated, and the rod body 7 has the effects of ventilation while rotating and ventilation while lifting.
The actuator with linear and rotary motions can be fixed on a manipulator, a sliding table and other modules, including but not limited to the mechanical type, and can complete linear motions (0-40 HZ) at high frequency and rotate at high speed (0-5000 r/min).

Claims (10)

1. An actuator with linear and rotary motion, comprising a housing (1), characterized in that: the casing (1) is internally provided with a tubular linear motor (2), a rotary motor (3), a measurement feedback device, a linear motion mechanism (5), a circuit board (20), an air channel (6) and a rod body (7), wherein the tubular linear motor (2) comprises a stator (21) and a rotor (22), the stator (21) is provided with a rotor sliding channel (211), the rotor (22) stretches into the rotor sliding channel (211), and the end part of the rotor (22) stretches out of the rotor sliding channel (211);
the rod body (7) is internally provided with a hollow cavity (71), the side wall of the rod body (7) is provided with a first air hole (72) communicated with the hollow cavity (71), and the bottom end of the rod body (7) is provided with a second air hole (73) communicated with the hollow cavity (71);
the linear motion mechanism (5) comprises a guide rail (51) and a sliding seat (52), the sliding seat (52) is seated on the guide rail (51) in a sliding manner, and the sliding rail limits the sliding direction of the sliding seat (52);
the sliding seat (52) is provided with a sliding channel (521) and an air pipeline (522), sealing rings (8) are respectively arranged at the ports of the sliding channel (521), the rotating motor (3) is arranged in the sliding seat (52), the rod body (7) is arranged in the sliding channel (521), the upper end of the rod body (7) penetrates through the sealing rings (8) to extend out of the sliding channel (521) and be connected with an output shaft of the rotating motor (3), the lower end of the rod body (7) penetrates through the sealing rings (8) to extend out of the casing (1), and the rotating motor (3) drives the rod body (7) to rotate;
an air cavity (9) is formed by enclosing among the sealing ring (8), the rod body (7) and the sliding channel (521), the air cavity (9) is connected with one port of the ventilation pipeline (522), the shell (1) is provided with an air port (11), the air channel (6) is arranged in the inner cavity of the shell (1), one port of the air channel (6) is connected with the air port (11), and the other port of the air channel (6) is connected with the other port of the ventilation pipeline (522);
the rotor (22) is connected with the sliding seat (52), and the rotor (22) drives the sliding seat (52), the rotating motor (3) and the rod body (7) to linearly move along the direction of the guide rail (51);
the measuring feedback device comprises a detecting head and a scale, the scale is arranged on the sliding seat (52) or the shell (1), the detecting head is arranged on the shell (1) or the sliding seat (52) and is in contact with the scale, and the tubular linear motor (2), the rotary motor (3) and the measuring feedback device are respectively and electrically connected with the circuit board (20).
2. The actuator with linear, rotational motion of claim 1, wherein: the device further comprises an elastic piece (100), one end of the elastic piece (100) is connected with the shell (1), the other end of the elastic piece (100) is connected with the sliding seat (52), and the elastic piece (100) forms a resetting mechanism of the sliding seat (52).
3. The actuator with linear, rotational motion of claim 1, wherein: the novel electric motor further comprises a coupler (200), wherein the coupler (200) is arranged on an output shaft of the rotary motor (3), and the upper end of the rod body (7) is connected with the coupler (200).
4. The actuator with linear, rotational motion of claim 1, wherein: still include bearing (300), slide (52) are located port department on slide passageway (521) and are provided with mounting groove (400), be provided with in last mounting groove (400) sealing washer (8) and bearing (300), slide (52) are located port department under slide passageway (521) and are provided with down the mounting groove, be provided with in the mounting groove sealing washer (8) with bearing (300), body of rod (7) upper end is passed sealing washer (8) and bearing (300) in proper order and is outwards stretched out, and body of rod (7) lower extreme is stretched out sealing washer (8) and bearing (300) in proper order and is stretched out outwards.
5. The actuator with linear and rotational motion according to claim 4, wherein: the sealing ring (8) is a rotary sealing ring (8).
6. The actuator with linear, rotational motion of claim 1, wherein: still include buffering cushion (500), connecting portion (523) are extended towards active cell (22) direction to slide (52), active cell (22) are connected with connecting portion (523), go up buffering cushion (500) and set up the bottom at connecting portion (523) surface or slide (52).
7. The actuator with linear, rotational motion of claim 1, wherein: the device also comprises a lower buffer rubber pad (600), wherein the lower buffer rubber pad (600) is arranged at the bottom of the inner cavity of the shell (1) or the bottom of the sliding seat (52).
8. The actuator with linear, rotational motion of claim 1, wherein: the electric motor also comprises a flat cable (700), wherein the flat cable (700) is arranged in the machine shell (1), one end of the flat cable (700) is connected with the circuit board (20), and the other end of the flat cable (700) is connected with the rotating motor (3).
9. The actuator with linear, rotational motion of claim 1, wherein: the shell (1) is provided with a communication port (12) for connecting with a superior controller, and the communication port (12) is electrically connected with a circuit board (20).
10. The actuator with linear, rotational motion of claim 1, wherein: the measuring feedback device is a magnetic grid (4), the detecting head is a magnetic head (41), the scale is a magnetic scale (42), the magnetic scale (42) is arranged on the sliding seat (52) or the shell (1), the magnetic head (41) is arranged on the shell (1) or the sliding seat (52) and is in contact with the magnetic scale (42), and the tubular linear motor (2), the rotating motor (3) and the magnetic grid (4) are respectively electrically connected with the circuit board (20).
CN202310164611.9A 2023-02-25 2023-02-25 Actuator with linear and rotary motion Pending CN116111801A (en)

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Application Number Priority Date Filing Date Title
CN202310164611.9A CN116111801A (en) 2023-02-25 2023-02-25 Actuator with linear and rotary motion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310164611.9A CN116111801A (en) 2023-02-25 2023-02-25 Actuator with linear and rotary motion

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CN116111801A true CN116111801A (en) 2023-05-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116633078A (en) * 2023-07-05 2023-08-22 国奥科技(深圳)有限公司 High-precision linear rotating motor
CN117543930A (en) * 2023-10-19 2024-02-09 深圳市速程精密科技有限公司 Shell for constructing stator structure of linear rotating motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116633078A (en) * 2023-07-05 2023-08-22 国奥科技(深圳)有限公司 High-precision linear rotating motor
CN117543930A (en) * 2023-10-19 2024-02-09 深圳市速程精密科技有限公司 Shell for constructing stator structure of linear rotating motor

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