CN209166325U - An Angle Measuring Device Based on Single Chip Computer Control - Google Patents

Abstract

The utility model discloses an angle measurement device based on single chip microcomputer control relates to measuring tool technical field, including electron digital display bevel protractor, electron digital display bevel protractor includes the main scale, bevel protractor and angle sensor, angle sensor establishes so that the one end of main scale and bevel protractor forms articulatedly between main scale and bevel protractor, be equipped with perpendicular bubble on the main scale, horizontal bubble and digital display, still include the singlechip, step motor and angle elevating gear, singlechip and step motor all install inside the main scale, step motor is connected with the singlechip, step motor's pivot is worn out from the lateral wall of main scale, angle elevating gear includes the connecting rod and rotates the slider of installing in connecting rod one end, slider slidable mounting is on the lateral wall of bevel protractor, the other end fixed mounting of connecting rod is in step motor's pivot. The utility model discloses degree of automation is high, and the contained angle is measured in the less or the inconvenient place of manual operation in some spaces to the convenience.

Description

An Angle Measuring Device Based on Single Chip Computer Control

technical field

The utility model relates to the technical field of measuring tools, in particular to an angle measuring device controlled by a single-chip microcomputer.

Background technique

At present, in the process of house decoration, maintenance, item installation, etc., when measuring the angle between objects, the ordinary angle ruler is usually used to measure, and the accuracy of the ordinary angle ruler is low, and the scale division is generally 1 The angle measurement value is read by naked eye observation during measurement, so the angle measurement error is large, which cannot meet the needs of occasions with high measurement accuracy requirements.

The Chinese utility model patent with the application number CN200520014845.2 discloses an electronic digital display angle ruler, "comprising a main ruler, an angle ruler and an angle sensor, and the angle sensor is arranged between the main ruler and the angle ruler, wherein, on the main ruler There is a level bubble and a digital display; the angle sensor includes a support, a support plate, a bearing, a transmission shaft, a signal emitting board, a signal receiving board, a sensor and a connecting plate, wherein one end of the support is connected with the main ruler, and one end of the support plate is fixed on the On the support, the signal receiving plate is fixed on the other end of the supporting plate, the bearing is installed in the supporting plate, the transmission shaft is installed in the bearing hole of the bearing, the signal transmitting plate and the signal receiving plate are connected together, and the signal transmitting plate and the signal receiving plate are connected together. A sensor is installed between the plates, the sensor is fixed on the drive shaft and can rotate with the drive shaft, the connecting plate is mounted on the drive shaft, and the angle ruler is connected with the connecting plate; the angle ruler is respectively provided with a level bubble observation hole and a digital display Observation hole. When working, the electronic digital display angle ruler converts the angle measured by the angle ruler through the sensor to convert the mechanical rotation signal into an electronic signal and displays the measured angle value on the LCD screen.” Although the above-mentioned electronic digital angle ruler has the characteristics of high measurement accuracy, its measurement accuracy is more than 0.2 degrees, the angle measurement error is small, and the angle value measured by the angle ruler can be displayed on the LCD screen as a numerical value to eliminate human errors. However, because the above-mentioned electronic digital display angle ruler needs to manually separate the main ruler and the angle ruler, the included angle can only be measured after the main ruler and the angle ruler are in contact with the two sides of the measured angle. In places where it is small or inconvenient for human operation, the above-mentioned electronic digital angle ruler will also be inconvenient to use, resulting in a large measurement error.

Utility model content

In view of this, the purpose of the present invention is to provide an angle measuring device controlled by a single-chip microcomputer, which is convenient to use in some places with small space or inconvenient human operation.

The present utility model solves the above-mentioned technical problems through the following technical means:

An angle measuring device controlled by a single-chip microcomputer includes an electronic digital display angle ruler, and the electronic digital display angle ruler includes a main ruler, an angle ruler and an angle sensor, and the angle sensor is arranged between the main ruler and the angle ruler to make the main ruler and the angle ruler. One end of the angle ruler is hinged, and the main ruler is provided with vertical water bubbles, horizontal water bubbles and a digital display, and also includes a single chip microcomputer, a stepping motor and an angle lifting device. The stepping motor is connected with the single-chip microcomputer, and the rotating shaft of the stepping motor passes through the side wall of the main ruler. The angle lifting device includes a connecting rod and a sliding block that is rotatably installed at one end of the connecting rod, and the sliding block is slidably installed at one end of the connecting rod. On the outer side wall of the angle ruler, the other end of the connecting rod is fixedly installed on the rotating shaft of the stepping motor, and a pressure sensor is installed on the upper surface of the angle ruler, and the pressure sensor is signally connected to the single-chip microcomputer.

Further, the rotating shaft of the stepping motor is arranged on the same side as the digital display, the side wall of the angle ruler is provided with a chute arranged along the length direction of the angle ruler, and the chute is matched with the slider, and the slider is Sliding mounted in the chute.

Further, the chute is a T-shaped groove.

Further, both ends of the connecting rod are bent in the direction of the angle ruler to form bending parts, wherein one end of the bending part is welded on the rotating shaft of the stepping motor, and the other end of the bending part is welded on the rotating shaft of the stepping motor. A universal ball is provided, the surface of the slider is provided with a spherical groove matching with the universal ball, and the universal ball is rotatably installed in the spherical groove.

Further, an arc-shaped groove for accommodating the rotating shaft of the stepping motor is opened on the side elevation of the angle ruler close to the connecting rod.

Further, a power supply is also installed in the main ruler, and the angle sensor, the digital display, the single-chip microcomputer and the stepping motor are all connected with the power supply.

Further, a key board is installed on the upper surface of the main ruler, and the key board is connected with the single-chip microcomputer.

The beneficial effects of the present utility model:

The utility model controls the rotation of the stepping motor through the single chip microcomputer, and when the stepping motor rotates, the connecting rod is driven to rotate, so that the angle ruler is opened under the driving of the slider, until the angle ruler is in contact with one side of the measured angle, and the step is When the motor stops rotating, the angle measurement can be completed.

The utility model has a high degree of automation and is convenient to measure the included angle in some places with small space or inconvenient manual operation, so that the angle measurement is more convenient and the measurement error is reduced.

Description of drawings

Fig. 1 is the structural representation one of the angle measuring device based on the single chip control of the present utility model;

Fig. 2 is the enlarged structural representation of A place in Fig. 1;

Fig. 3 is the structural schematic diagram 2 of the angle measuring device based on the single-chip microcomputer control of the present invention;

Fig. 4 is the structural schematic diagram three of the angle measuring device based on the single-chip microcomputer control of the present invention;

Among them, the main ruler 1, the angle ruler 2, the angle sensor 3, the vertical water bubble 4, the horizontal water bubble 5, the digital display 6, the single chip 7, the stepping motor 8, the connecting rod 9, the slider 10, the chute 11, the universal ball 12 , pressure sensor 13, arc groove 14, power supply 15, key board 16.

Detailed ways

The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments:

As shown in Fig. 1-Fig. 4, the angle measuring device based on single-chip microcomputer control of the present invention comprises an electronic digital display angle ruler, a single-chip microcomputer 7, a stepping motor 8 and an angle lifting device, and the electronic digital display angle ruler comprises a main ruler 1, The angle ruler 2 and the angle sensor 3, the angle sensor 3 is arranged between the main ruler 1 and the angle ruler 2 to make one end of the main ruler 1 and the angle ruler 2 form a hinge, and the main ruler 1 is provided with a vertical blister 4, a horizontal blister 5 and The digital display 6, the single chip 7 and the stepping motor 8 are all installed inside the main ruler 1. The stepping motor 8 is connected to the single chip 7. The single chip 7 is used to control the operation of the stepping motor 8. The rotating shaft of the stepping motor 8 is connected to the main ruler 1. The angle lifting device includes a connecting rod 9 and a sliding block 10 rotatably installed on one end of the connecting rod 9. The sliding block 10 is slidably installed on the outer side wall of the angle ruler 2, and the other end of the connecting rod 9 is fixedly installed on the step On the rotating shaft of the motor 7, a power supply 15 is also installed in the main ruler 1, the angle sensor 3, the digital display 6, the single chip 7 and the stepping motor 8 are all connected with the power supply 15, and a key board 16 is installed on the upper surface of the main ruler 1, The key board 16 is connected with the single chip 7, and the start time of the stepping motor 8 is set on the key board 16, for example, the stepping motor 8 is started after 10 s, and the angle measuring device of this embodiment is placed in the clamp to be measured. After the corner, after 10s, the single-chip microcomputer 7 starts the stepping motor 8 to rotate. When the stepping motor 8 rotates, it drives the connecting rod 9 to rotate, so that the angle ruler 2 is opened under the drive of the slider 10 until the angle ruler 2 and the clamp to be measured are opened. After the one side of the angle is in contact and fit, the stepping motor 8 stops rotating to complete the angle measurement. A pressure sensor 13 is installed on the upper surface of the angle ruler 2 , and the pressure sensor 13 is signal-connected with the single-chip microcomputer 7 . When the pressure sensor 13 is in contact with the side of the measured angle, the pressure sensor 13 converts the pressure into a digital signal and feeds it back to the microcontroller 7. After the microcontroller 7 receives the feedback signal from the pressure sensor 13, it controls the stepping motor 8 to stop. Rotation prevents the stepper motor 8 from continuing to rotate after the angle measuring device is taken out, resulting in errors in angle measurement.

Specifically, the rotating shaft of the stepping motor 8 is arranged on the same side as the digital display 6, and the side wall of the angle ruler 2 is provided with a chute 11 arranged along the length direction of the angle ruler 2. The chute 11 matches the slider 10, and the slider 10 is slidably installed in the chute 11, and the chute 11 is a T-shaped slot. The sliding block 10 is slidably installed in the T-shaped groove, which can prevent the sliding block 10 from falling off from the T-shaped groove during the movement of the sliding block 10 .

Both ends of the connecting rod 9 are bent in the direction of the angle ruler 2 to form a bending part, the end of one bending part is welded on the rotating shaft of the stepping motor 8, and the end part of the other bending part is provided with a universal ball. 12. The surface of the slider 10 is provided with a spherical groove matching with the universal ball 12, and the universal ball 12 is rotatably installed in the spherical groove. The universal ball 12 enables the connecting rod 9 to rotate within the slider 10 .

The side elevation of the angle ruler 2 close to the connecting rod 9 is provided with an arc-shaped groove 14 for accommodating the rotating shaft of the stepping motor 8. When the main ruler 1 and the angle ruler 2 are stored together, the stepping motor 8 is accommodated in the arc-shaped groove 14. Inside.

The angle measuring device based on single-chip control in this embodiment controls the rotation of the stepping motor 8 through the single-chip computer. When the stepping motor 8 rotates, it drives the connecting rod 9 to rotate, so that the angle ruler 2 is opened by the sliding block 10 until the angle After the ruler 2 is in contact with one side of the measured angle, the pressure sensor 13 converts the pressure into a digital signal and feeds it back to the microcontroller 7. After the microcontroller 7 receives the feedback signal from the pressure sensor 13, it controls the stepping motor 8 to stop rotating to prevent After the angle measuring device is taken out, the stepping motor 8 continues to rotate, resulting in an error in the angle measurement.

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or Equivalent replacement, without departing from the purpose and scope of the technical solutions of the present invention, should be included in the scope of the claims of the present invention. The technology, shape and structure part that are not described in detail in the present invention are all known technology.

Claims (7)

1. An angle measuring device controlled by a single-chip computer, comprising an electronic digital display angle ruler, and the electronic digital display angle ruler comprises a main ruler (1), an angle ruler (2) and an angle sensor (3), and the angle sensor (3) It is arranged between the main ruler (1) and the angle ruler (2) so that one end of the main ruler (1) and the angle ruler (2) is hinged, and the main ruler (1) is provided with vertical blisters (4), horizontal The water bubble (5) and the digital display (6) are characterized in that: further comprising a single-chip microcomputer (7), a stepping motor (8) and an angle lifting device, and the single-chip microcomputer (7) and the stepping motor (8) are both installed in the main Inside the ruler (1), the stepping motor (8) is connected with the single-chip microcomputer (7), the rotating shaft of the stepping motor (8) protrudes from the side wall of the main ruler (1), and the angle lifting device includes a connecting A rod (9) and a sliding block (10) rotatably mounted on one end of the connecting rod (9), the sliding block (10) is slidably mounted on the outer wall of the angle ruler (2), and the other side of the connecting rod (9). One end is fixedly installed on the rotating shaft of the stepping motor (8), a pressure sensor (13) is installed on the upper surface of the angle ruler (2), and the pressure sensor (13) is signally connected to the single chip (7). 2. The angle measuring device based on single-chip microcomputer control according to claim 1, characterized in that: the rotating shaft of the stepping motor (8) is arranged on the same side as the digital display (6), and the side of the angle ruler (2) is arranged on the same side. A chute (11) is provided on the wall along the length direction of the angle ruler (2), the chute (11) is matched with the slider (10), and the slider (10) is slidably installed on the chute (11). )Inside. 3 . The angle measuring device based on single chip control according to claim 2 , wherein the chute ( 11 ) is a T-shaped groove. 4 . 4. The angle measuring device based on single-chip control according to claim 3, characterized in that: both ends of the connecting rod (9) are bent in the direction of the angle ruler (2) to form a bent portion, wherein one of the The end of the bending part is welded on the rotating shaft of the stepping motor (8), the other end of the bending part is provided with a universal ball (12), and the surface of the slider (10) is provided with a universal ball (12). A spherical groove matched with the spherical ball (12), and the universal ball (12) is rotatably installed in the spherical groove. 5. The angle measuring device based on single-chip microcomputer control according to claim 4, characterized in that: the side elevation of the angle ruler (2) close to the connecting rod (9) is provided with a rotating shaft for accommodating the stepping motor (8). The arc groove (14). 6. The angle measuring device based on single-chip microcomputer control according to claim 5, characterized in that: a power supply (15) is also installed in the main ruler (1), the angle sensor (3), the digital display (6) , the microcontroller (7) and the stepping motor (8) are all connected to the power supply (15). 7. The angle measuring device based on single-chip microcomputer control according to claim 6, characterized in that: a key board (16) is installed on the upper surface of the main ruler (1), and the key board (16) is connected to the single-chip microcomputer (7). )connect.