CN113251890A - Zero setting device for position of linear actuator - Google Patents
Zero setting device for position of linear actuator Download PDFInfo
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- CN113251890A CN113251890A CN202110535923.7A CN202110535923A CN113251890A CN 113251890 A CN113251890 A CN 113251890A CN 202110535923 A CN202110535923 A CN 202110535923A CN 113251890 A CN113251890 A CN 113251890A
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Abstract
The invention relates to a position zero setting device of a linear actuator, which comprises: the zero-position adjusting device comprises an actuator body (1), a zero-position mechanical fixing tool (2) and an electric zero-setting device (3); the actuator body (1) is connected with the electrical zero setting device (3) through an electrical cable; the actuator body (1) can be matched with the zero-position mechanical fixing tool (2); a positioning datum plane is arranged on the zero position mechanical fixing tool (2), and a zero position datum plane is arranged on the actuator body (1); attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) to enable the two reference surfaces to be overlapped; a zero-position indicating rod is arranged on the zero-position mechanical fixing tool (2), and an external output interface is arranged on the actuator body (1); when the position of the linear actuator is adjusted manually, a zero position indicating rod arranged on the zero position mechanical fixing tool (2) is connected with an external output interface arranged on the actuator body (1); and the zero setting of the position of the actuator is realized.
Description
Technical Field
The invention relates to a position zero setting device of a linear actuator, belongs to the technical field of actuator structures and control, and is suitable for debugging and using of zero calibration, fixing and the like of the linear actuator.
Background
Linear actuators have been commonly used in various types of projectiles and aircraft as a position servo driver. In the use and installation process of the actuator, the mechanical zero position of the thrust output shaft of the actuator needs to be adjusted to meet the product performance requirement. The traditional direct mechanical zero setting final debugging result is mainly judged by people, the precision is relatively low, the actuator needs to be electrified in the debugging process by the conventional power-on zero setting method, so that the actuator is in a working state, the process is complex, the time of the zero setting process is long, the risk is high, and the capacity of coping with the batch production of the actuator is lacked.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a position zero-setting device of an electromechanical integrated linear actuator, which overcomes the defects of the prior art, provides a practical method for improving the assembly and debugging efficiency of the linear actuator and realizing high-precision position zero-setting of the linear actuator, and avoids precision errors caused by direct mechanical zero-setting and complex processes of electrical zero-setting on the actuator. Firstly, the mechanical zero coarse adjustment of the linear actuator is manually realized through a zero mechanical fixing tool, the fine adjustment is carried out by combining a visual electrical control zero adjustment device again, and finally, the zero mechanical fixing of the actuator is carried out by means of a lead screw-sensor connecting mechanism. The visualization and data acquisition module of the electric control device ensures the flexibility and accuracy of zero calibration, and the zero mechanical fixing tool further ensures the stability and reliability of the zero position. The device has the commonality in structure and has the advantages such as the commonality is strong, and the operation is convenient, fixed quick, has advantages such as small light in weight, data are visual, calibration accuracy height on the electrically controlled device, and whole device dismouting is simple and convenient, zero setting is quick, nimble light and handy.
The technical solution of the invention is as follows: a linear actuator position zeroing device, comprising: the zero-position adjusting device comprises an actuator body (1), a zero-position mechanical fixing tool (2) and an electric zero-setting device (3);
the actuator body (1) is connected with the electrical zero setting device (3) through an electrical cable;
the actuator body (1) can be matched with the zero-position mechanical fixing tool (2);
a positioning datum plane is arranged on the zero position mechanical fixing tool (2), and a zero position datum plane is arranged on the actuator body (1); attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) to enable the two reference surfaces to be overlapped;
a zero-position indicating rod is arranged on the zero-position mechanical fixing tool (2), and an external output interface is arranged on the actuator body (1);
when the position of the linear actuator is adjusted manually, a zero position indicating rod arranged on the zero position mechanical fixing tool (2) is connected with an external output interface arranged on the actuator body (1);
an adjustable actuator body (1) capable of changing the output voltage of the actuator body (1); can read the output voltage of actuator body (1) through electric zero set device (3), when the output voltage of actuator body (1) at 5V 0.04V interval within a definite time, then judge that actuator body (1) is in the zero position, the current position of locking actuator body (1), realize the zero set of actuator position.
Preferably, the actuator body (1) is a linear actuator.
Preferably, the actuator body (1) includes: the device comprises a universal motor (11), an actuating module (12) and a rear end cover (13);
the universal motor (11) is connected with the actuating module (12) through a screw; the universal motor (11) is connected with the rear end cover (13) through a screw;
the rotation of the output end of the universal motor (11) is converted into the reciprocating motion of the actuating module (12); the rear end cover (13) plays a role in sealing and packaging the universal motor (11).
An external output interface is arranged on the actuating module (12) and is used as the external output interface of the actuator body (1).
Preferably, the zero position mechanical fixing tool (2) comprises a zero position positioning caliper (211), one end of the zero position positioning caliper (211) is provided with a positioning reference surface (212), the other end of the zero position positioning caliper is provided with a zero position indicating rod (213),
the positioning reference surface (212) is used for attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) so as to enable the two reference surfaces to be overlapped;
zero-position indicator pole (213), can be according to actuator body (1) stroke requirement, adjust the position of actuator body (1) external output interface, can make actuator body (1) be in mechanical zero-position.
Preferably, the electrical zero setting device (3) comprises: a voltage acquisition processing control panel (31) and a liquid crystal display screen (32);
the voltage acquisition processing control board (31) is realized in a PCB (printed circuit board) mode, has two AD acquisition functions, can acquire the output voltage of the actuator body (1), performs AD conversion to obtain a digital voltage signal, and sends the digital voltage signal to the liquid crystal display screen (32) for display.
According to the number of readings of liquid crystal display (32), judge whether the current position of actuator body (1) is the zero position, if no, then manual regulation actuator body (1) until the number of readings of liquid crystal display (32) is within 5V 0.04V interval, realize the zero adjustment of actuator.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the electric zero setting device of the linear actuator is used for realizing the visual zero voltage calibration function, not only can the complexity and risk factors of electric zero setting of the linear actuator be avoided, but also direct adjustment of the device can be conveniently and flexibly realized, the electric zero setting device adopts an integrated design and is additionally provided with a liquid crystal display module, the installation and disassembly are convenient, the maintenance is simple, and the efficiency of batch debugging production is greatly improved.
(2) The zero position mechanical fixing tool has strong structural universality, skillfully applies the vernier caliper function principle to the zero position mechanical fixing tool, can adjust the mechanical zero position of the linear actuator according to different zero position requirements, can be applied to zero position adjusting operation of various linear actuators, and is simple and rapid to operate.
(3) According to the invention, through acquiring the comparison and calibration of the mechanically-adjusted zero-position voltage value and the electric zero-position voltage value, a large error caused by purely manually adjusting and visually observing the mechanical zero position is optimized, meanwhile, the stability and reliability of zero-position calibration are further improved by using a zero-position mechanical fixing tool, and finally, the direction control of the actuator is ensured.
(4) The zero position adjusting device of the linear actuator can meet the requirements of various complex working condition environments, is stable and reliable in structure, can bear large impact, is relatively long in service life, and has good environmental adaptability and quality reliability.
Drawings
FIG. 1 is a schematic view of the general structure of the apparatus of the present invention;
FIG. 2 is a schematic view of the linear actuator body of the present invention;
FIG. 3 is a schematic view of a universal motor of the present invention
FIG. 4 is a schematic view of an electrical zero setting apparatus of the present invention;
FIG. 5 is a schematic view of an actuating module according to the present invention
FIG. 6 is a schematic view of a zero position mechanical fixing tool of the present invention;
FIG. 7 is a schematic view of a linear displacement sensor according to the present invention;
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
The invention relates to a position zero setting device of a linear actuator, which comprises: the zero-position adjusting device comprises an actuator body (1), a zero-position mechanical fixing tool (2) and an electric zero-setting device (3); the actuator body (1) is connected with the electrical zero setting device (3) through an electrical cable; the actuator body (1) can be matched with the zero-position mechanical fixing tool (2); a positioning datum plane is arranged on the zero position mechanical fixing tool (2), and a zero position datum plane is arranged on the actuator body (1); attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) to enable the two reference surfaces to be overlapped; a zero-position indicating rod is arranged on the zero-position mechanical fixing tool (2), and an external output interface is arranged on the actuator body (1); when the position of the linear actuator is adjusted manually, a zero position indicating rod arranged on the zero position mechanical fixing tool (2) is connected with an external output interface arranged on the actuator body (1); an adjustable actuator body (1) capable of changing the output voltage of the actuator body (1); can read the output voltage of actuator body (1) through electric zero set device (3), when the output voltage of actuator body (1) at 5V 0.04V interval within a definite time, then judge that actuator body (1) is in the zero position, the current position of locking actuator body (1), realize the zero set of actuator position.
The scheme of the invention is suitable for the working condition environment with the requirements of quick, high-precision and high-efficiency zero setting for the linear actuator, and the scheme of the invention can obviously improve the assembly and debugging efficiency of the linear actuator, effectively avoid the precision error caused by direct mechanical zero setting and simplify the complex debugging process. Meanwhile, the device has stronger universality on the design of the structural tool, and the flexible unification of mechanical and electrical zero setting modes provides favorable technical support conditions for the batch production of the linear actuator.
The invention relates to a position zero setting device of a linear actuator, which comprises: the zero-position adjusting device comprises an actuator body (1), a zero-position mechanical fixing tool (2) and an electric zero-setting device (3);
the actuator body (1) is connected with the electrical zero setting device (3) through an electrical cable;
the actuator body (1) can be matched with the zero-position mechanical fixing tool (2);
a positioning datum plane is arranged on the zero position mechanical fixing tool (2), and a zero position datum plane is arranged on the actuator body (1); attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) to enable the two reference surfaces to be overlapped;
a zero-position indicating rod is arranged on the zero-position mechanical fixing tool (2), and an external output interface is arranged on the actuator body (1);
when the position of the linear actuator is adjusted manually, a zero position indicating rod arranged on the zero position mechanical fixing tool (2) is connected with an external output interface arranged on the actuator body (1);
an adjustable actuator body (1) capable of changing the output voltage of the actuator body (1); can read the output voltage of actuator body (1) through electric zero set device (3), when the output voltage of actuator body (1) at 5V 0.04V interval within a definite time, then judge that actuator body (1) is in the zero position, the current position of locking actuator body (1), realize the zero set of actuator position.
The actuator body (1) is a linear actuator.
The actuator body (1) comprises: the device comprises a universal motor (11), an actuating module (12) and a rear end cover (13);
the universal motor (11) is connected with the actuating module (12) through a screw; the universal motor (11) is connected with the rear end cover (13) through a screw;
the rotation of the output end of the universal motor (11) is converted into the reciprocating motion of the actuating module (12); the rear end cover (13) plays a role in sealing and packaging the universal motor (11).
An external output interface is arranged on the actuating module (12) and is used as the external output interface of the actuator body (1).
The zero position mechanical fixing tool (2) comprises a zero position positioning caliper (211), one end of the zero position positioning caliper (211) is provided with a positioning reference surface (212), the other end of the zero position positioning caliper is provided with a zero position indicating rod (213),
the positioning reference surface (212) is used for attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) so as to enable the two reference surfaces to be overlapped;
zero-position indicator pole (213), can be according to actuator body (1) stroke requirement, adjust the position of actuator body (1) external output interface, can make actuator body (1) be in mechanical zero-position.
The electrical zero setting device (3) comprises: a voltage acquisition processing control panel (31) and a liquid crystal display screen (32);
the voltage acquisition processing control panel (31) is realized in a PCB (printed circuit board) mode, has two AD acquisition functions, can acquire the output voltage of the actuator body (1), performs AD conversion to obtain a digital voltage signal, and sends the digital voltage signal to the liquid crystal display screen (32) for display.
According to the number of readings of liquid crystal display (32), judge whether the current position of actuator body (1) is the zero position, if no, then manual regulation actuator body (1) until the number of readings of liquid crystal display (32) is within 5V 0.04V interval, realize the zero adjustment of actuator.
As shown in fig. 3, the preferred embodiment of the universal motor (11) is specifically as follows: the universal motor (11) comprises a motor stator (111), a motor rotor winding (112) and a motor rotor shaft (113). The motor rotor shaft (113) is connected with the actuating module (12). The magnetic field generated by the motor stator (111) interacts with the magnetic field generated by the motor rotor winding (112), so that the motor operates to generate force, and the force is output and transmitted to the actuating module (12) through the motor rotor shaft (113).
The actuating module (12), as shown in fig. 5, preferably includes: the actuating module (12) comprises a trapezoidal screw pair (121), a displacement sensor (122), a copper sleeve (123) and a screw-sensor connecting mechanism (124). The trapezoidal screw shaft pair (121) and the displacement sensor (122) are fixedly locked through a screw-sensor connecting mechanism (124) so as to ensure linkage of the two and ensure connection precision. The copper sleeve (123) and the trapezoidal screw pair (121) are matched with each other through a shaft hole to play a supporting role.
Trapezoidal lead screw pair (121), includes: a lead screw (1211) and a lead screw nut (1212). The screw nut (1212) and the motor rotor shaft (113) are in integrated rigid connection, so that the rotatable universal motor (11) drives the screw nut (1212) to rotate, the screw nut (1212) rotates to drive the screw rod (1211) to generate position change, and finally the actuator body (1) outputs linear motion outwards.
The displacement sensor (122), preferably includes a displacement sensor center tap (1221), as shown in fig. 7. And an output pin of the displacement sensor (122) is connected with the electric zero setting device (3) through an electric cable. The displacement change of the trapezoidal screw rod (1211) drives the position of a center tap (1221) of the displacement sensor to change, and the electric zero setting device (3) collects the voltage value at the center tap (1221) of the displacement sensor to output and display.
The rear end cover (13), as shown in fig. 2, preferably is: a plurality of screws are distributed on the rear end cover (13) at the bottom of the actuator, and the universal motor (11) is sealed and packaged in the actuator body (1) through fastening screws.
The positioning reference plane (212), as shown in fig. 6, is preferably embodied as follows: the positioning datum plane (212) is used as a zero position reference plane of the zero position mechanical fixing tool (2) to provide a datum for the position precision of the zero position indicating rod (213).
The zero position indicating rod (213), as shown in fig. 6, preferably includes: the zero position indicating rod (213) is used as a zero position calibrating device of the zero position mechanical fixing tool (2) to provide a mechanical calibrating zero position for an output interface of the actuator body (1).
The voltage acquisition processing control board (31), as shown in fig. 4, has a preferred scheme specifically as follows: the voltage acquisition processing control board (31) is realized in a PCB circuit board mode, an electric cable is welded at a data acquisition port of the circuit board and thrown out, and the electric cable is connected with an output pin of the displacement sensor (122) through the electric cable. The voltage acquisition processing control panel (31) integrates a data acquisition module and a power supply module. The data acquisition module provides two AD acquisition channels, realizes voltage acquisition and analog-to-digital conversion, and finally acquires and outputs the voltage at a center tap (1221) of the displacement sensor. The power supply module has 5V and 3.3V outputs and continuously supplies power for the displacement sensor (122), the voltage acquisition processing control panel (31) and the liquid crystal display screen (32).
The liquid crystal display screen (32), as shown in fig. 4, the preferred scheme is specifically: the liquid crystal display (32) is of the thin film transistor type, has a size of 0.96 inch, a resolution of 80 x 160, and is adjustable in direction and vertical and horizontal. The liquid crystal display is connected with the voltage acquisition processing control panel (31) in a pin welding mode, the voltage acquisition processing control panel (31) outputs acquired voltage to the liquid crystal display (32), and whether the current position of the actuator is a zero position or not is judged according to the display screen display number.
The preferred scheme is as follows: the trapezoidal screw pair (121) in the actuating module (12) has a self-locking function, and meanwhile, the right limit position of the screw rod (1211) can be limited by a copper sleeve (123) in the actuator body (1), so that the screw rod is prevented from exceeding the stroke of the displacement sensor (122).
The effective mechanical stroke X of the central tap (1221) of the displacement sensor rotating from the left limit position to the right limit position is 22.5mm, and the mechanical zero position of the actuator (1) corresponds to the position of the lead screw (1211) and is 11.25 mm. The range of the effective electrical stroke Y of the displacement sensor (122) is as follows: 9.5V +/-0.1V is more than or equal to Y +/-0.5V +/-0.1V, and the electric zero voltage is 5V +/-0.08V. The zero voltage variation range of the displacement sensor (122) is 0-0.04V, and the mechanical stroke precision is 0.1 mm; the precision of an ADC module of a voltage acquisition processing control board (31) in the electric zero setting device (3) is 12 bits, the resolution is 0.0008V, the voltage resolution of 0.1mm precision is guaranteed to be larger than 0.004V, and the effective electric stroke range of the displacement sensor (122) is met. When the actuator (1) is positioned at the mechanical zero position of 11.25mm, the voltage value displayed by the liquid crystal display screen (32) of the electrical zero setting device (3) is observed and adjusted, and when the zero voltage reading is within the interval of 5V +/-0.04V, the adjustment unification of the mechanical zero position and the electrical zero position of the device is realized.
The invention relates to a position zero setting device of a linear actuator, belonging to the technical field of actuator structures and control. The zero-position adjusting device comprises a linear actuator body, a zero-position mechanical fixing tool and an electric zero-setting device. The actuator body comprises a universal motor, a trapezoidal screw pair, a displacement sensor, a copper sleeve, a screw-sensor connecting mechanism and a bottom rear end cover. The zero position mechanical fixing tool mainly comprises a zero position positioning caliper, a positioning reference surface and a zero position indicating rod; the electric zero setting device comprises a voltage acquisition control panel and a liquid crystal display screen.
The device firstly attaches a positioning reference surface of a zero position mechanical fixing tool to a zero position reference surface of an output shaft of an actuator, and ensures that the two reference surfaces are superposed; secondly, adjusting a zero position positioning caliper to enable an output shaft of the actuator to reach a zero position mechanical position, connecting a zero position indicating rod with an external output interface of the actuator, and ensuring that the zero position indicating rod is overlapped with the output shaft end of the actuator; and when the voltage value is in the zero-position voltage range, the output screw shaft of the actuator is in locking connection with the center tap of the linear displacement sensor by means of the screw rod-sensor connecting mechanism, so that the mechanical zero position and the electrical zero position of the actuator are unified.
The invention adopts the electromechanical integration zero-setting method, has simple device, easy operation, small volume, light weight, low cost and strong universality, and can achieve higher position zero-setting precision. Meanwhile, the digital display mode of the electric zero setting device can greatly save the test time of the linear actuator, improve the zero setting efficiency and is beneficial to batch test and production of the linear actuators. The device can be widely and universally used on various weapon equipment suitable for linear actuators, such as bullets, thunder bodies and the like, and is simple, flexible and reliable in zero setting.
The invention provides a zero adjusting device of a linear actuator, and the system components are shown in figures 1-7. The zero adjusting device of the linear actuator mainly comprises a linear actuator body, a zero mechanical fixing tool and an electric zero adjusting device, and is shown in figure 1;
the actuator body comprises a universal motor, an actuating module and a rear end cover, and is shown in figure 2;
the universal motor comprises a motor stator, a motor rotor winding and a motor rotor shaft, and is shown in figure 3;
the actuating module comprises a trapezoidal screw pair, a displacement sensor, a copper bush and a screw-sensor connecting mechanism, as shown in figure 5;
the zero position mechanical fixing tool comprises a zero position positioning caliper, one end of the zero position positioning caliper is provided with a precise and flat positioning reference surface, the other end of the zero position positioning caliper is provided with a zero position indicating rod, and the zero position mechanical positions of the output port of the actuator and the installation reference of the actuator can be actively adjusted according to the stroke requirement of the actuator, as shown in fig. 6;
the electric zero-setting device comprises a data acquisition and processing control panel and a liquid crystal display screen, and is connected with the actuator module through an electric cable, as shown in figure 4.
In this embodiment, the linear actuator position signal detected by the displacement sensor is fed back and transmitted as a voltage to the actuator direction change. When the center tap of the displacement sensor runs inwards, the voltage value of the feedback voltage is increased from small to small; when the center tap of the displacement sensor moves outward, the voltage value of the feedback voltage is greatly reduced.
In the invention, the mechanical zero voltage value of the actuator refers to the voltage value displayed by a liquid crystal display screen of the electric zero device when the mechanical output position of the actuator is in the middle of the full stroke of the actuator, and the zero voltage range is 5V +/-0.04V.
In the invention, the independent linear tolerance of the displacement sensor is +/-0.7%, the output smoothness of the displacement sensor is +/-0.1%, the influence of variation error and temperature coefficient of the electric shock resistance of the displacement sensor is negligible, and the zero voltage variable range of the displacement sensor is 0.04V by considering error data. The mechanical stroke precision of the displacement sensor is 0.1mm, the precision of a data acquisition module on a voltage acquisition processing control board of the electrical zero-setting device is 12 bits, the resolution is 0.0008V, and the voltage resolution of 0.1mm precision is more than 0.004V.
The zero setting device for the position of the linear actuator is used for adjusting and determining the mechanical zero position of the output shaft of the actuator, and the output shaft of the actuator can accurately reach the mechanical position of the zero position.
The zero adjusting device for the linear actuator is used for calibrating the zero position and fixing the position of the linear actuator, so that the zero adjusting device can realize quick and high-precision zero adjustment. The preferred scheme comprises the following specific steps:
firstly, a positioning reference surface of a zero position mechanical fixing tool is attached to a zero position reference surface of a linear actuator, so that the two reference surfaces are superposed.
And then adjusting the zero position positioning caliper to enable the output shaft of the linear actuator to reach an expected mechanical zero position, connecting the zero position indicating rod to an external output interface of the actuator, enabling the zero position indicating rod to coincide with the output shaft end of the actuator, and enabling the actuator to reach the mechanical zero position of the device.
The actuator actuating module is connected with the electric zero setting device through an electric cable, the current voltage value of the actuating module is read by means of the liquid crystal display screen, the output voltage of the displacement sensor is adjusted in a small range according to the rule that the displacement of the displacement sensor is adjusted manually by 0.1mm and the voltage change of the liquid crystal display screen is 0.04V, and when the voltage value is within the interval of 5V +/-0.04V, the actuator reaches the electric zero position of the device.
Finally, the shaft end of the trapezoidal screw pair is in locking connection with the central tap end of the displacement sensor through a screw-sensor connecting mechanism, so that the mechanical zero position and the electrical zero position of the actuator are unified.
The embodiment result shows that the device can effectively and quickly realize zero adjustment of the linear actuator.
The invention is not described in detail and is within the knowledge of a person skilled in the art.
Claims (5)
1. A linear actuator position zeroing device, comprising: the zero-position adjusting device comprises an actuator body (1), a zero-position mechanical fixing tool (2) and an electric zero-setting device (3);
the actuator body (1) is connected with the electrical zero setting device (3) through an electrical cable;
the actuator body (1) can be matched with the zero-position mechanical fixing tool (2);
a positioning datum plane is arranged on the zero position mechanical fixing tool (2), and a zero position datum plane is arranged on the actuator body (1); attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) to enable the two reference surfaces to be overlapped;
a zero-position indicating rod is arranged on the zero-position mechanical fixing tool (2), and an external output interface is arranged on the actuator body (1);
when the position of the linear actuator is adjusted manually, a zero position indicating rod arranged on the zero position mechanical fixing tool (2) is connected with an external output interface arranged on the actuator body (1);
an adjustable actuator body (1) capable of changing the output voltage of the actuator body (1); can read the output voltage of actuator body (1) through electric zero set device (3), when the output voltage of actuator body (1) at 5V 0.04V interval within a definite time, then judge that actuator body (1) is in the zero position, the current position of locking actuator body (1), realize the zero set of actuator position.
2. The linear actuator position zeroing device of claim 1, wherein: the actuator body (1) is a linear actuator.
3. The linear actuator position zeroing device of claim 1, wherein: the actuator body (1) comprises: the device comprises a universal motor (11), an actuating module (12) and a rear end cover (13);
the universal motor (11) is connected with the actuating module (12) through a screw; the universal motor (11) is connected with the rear end cover (13) through a screw;
the rotation of the output end of the universal motor (11) is converted into the reciprocating motion of the actuating module (12); the rear end cover (13) plays a role in sealing and packaging the universal motor (11);
an external output interface is arranged on the actuating module (12) and is used as the external output interface of the actuator body (1).
4. The linear actuator position zeroing device of claim 1, wherein: the zero position mechanical fixing tool (2) comprises a zero position positioning caliper (211), one end of the zero position positioning caliper (211) is provided with a positioning reference surface (212), the other end of the zero position positioning caliper is provided with a zero position indicating rod (213),
the positioning reference surface (212) is used for attaching the positioning reference surface of the zero-position mechanical fixing tool (2) to the zero-position reference surface of the actuator body (1) so as to enable the two reference surfaces to be overlapped;
zero-position indicator pole (213), can be according to actuator body (1) stroke requirement, adjust the position of actuator body (1) external output interface, can make actuator body (1) be in mechanical zero-position.
5. The linear actuator position zeroing device of claim 1, wherein: the electrical zero setting device (3) comprises: a voltage acquisition processing control panel (31) and a liquid crystal display screen (32);
the voltage acquisition processing control board (31) is realized in a PCB form, has two AD acquisition functions, can acquire the output voltage of the actuator body (1), performs AD conversion to obtain a digital voltage signal, and sends the digital voltage signal to the liquid crystal display screen (32) for display;
according to the number of readings of liquid crystal display (32), judge whether the current position of actuator body (1) is the zero position, if no, then manual regulation actuator body (1) until the number of readings of liquid crystal display (32) is within 5V 0.04V interval, realize the zero adjustment of actuator.
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| CN114183334A (en) * | 2021-11-03 | 2022-03-15 | 内蒙古北方重工业集团有限公司 | Method for suppressing zero drift in debugging of amplification plate of radial plunger pump |
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| CN112747783A (en) * | 2020-12-30 | 2021-05-04 | 浙江工业大学 | Zero setting device and zero setting method for driving mechanism |
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| JPS6071908A (en) * | 1983-08-30 | 1985-04-23 | スペリ− コ−ポレイシヨン | Zero adjuster for tilt sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114183334A (en) * | 2021-11-03 | 2022-03-15 | 内蒙古北方重工业集团有限公司 | Method for suppressing zero drift in debugging of amplification plate of radial plunger pump |
| CN114183334B (en) * | 2021-11-03 | 2024-03-29 | 内蒙古北方重工业集团有限公司 | Method for debugging and inhibiting zero drift of radial plunger pump amplification plate |
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| CN113251890B (en) | 2023-06-06 |
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