CN105643239B - One kind is used for automobile meter pointer pressure self-positioning mechanism and localization method - Google Patents

Abstract

A self-positioning mechanism and positioning method for pointer pressure on automobile meters. The present invention relates to a self-positioning mechanism and positioning method for pointer pressure on automobile meters. The connection position is inaccurate, and the crimping depth is prone to deviation, and an adjustment is required every time the pointer is replaced, resulting in low work efficiency. It includes Delta servo motor, main control board, screw, pressure Sensor and display, the lead screw is installed on the output shaft of the Delta servo motor, the pressure sensor is fixedly installed on the lead screw, the pressure sensor is connected to the main control board through the connection line, and the Delta servo motor is connected to the main control board through the connection line. The display is connected with the main control panel through the connecting wire, the pointer of the meter is arranged on the rotating shaft of the meter motor, and the pressure sensor is arranged above the pointer of the meter. The invention is used for the positioning of automobile instruments.

Description

A self-positioning mechanism and positioning method for pointer pressure of automobile instrument

technical field

The invention relates to a pressure self-positioning mechanism and a positioning method for an automobile meter pointer.

Background technique

In the process of adjusting the crimping depth, the traditional pointer installation machine needs to manually adjust the crimping height of the pointer, and the limit effect is achieved through human eye adjustment and mechanical structural parts, so the accuracy of the depth position is very limited, and the crimping position is not accurate enough. Long-term use of equipment, due to wear and tear of structural elements, resulting in deviations in crimping depth. Only the limit structural parts can be replaced, and the crimping depth can be adjusted again. The adjustment process is very cumbersome. Moreover, in order to adapt to various types of instrument products, an adjustment is required every time the pointer is replaced, resulting in the problem of low work efficiency.

Contents of the invention

The present invention solves the inaccurate crimping position of the pointer in the prior art when the pointer installation machine is working, and the phenomenon that the crimping depth is prone to deviation, and needs to be adjusted every time the pointer is replaced, resulting in low work efficiency. To solve the problem, a self-positioning mechanism and positioning method for the pointer pressure of the automobile instrument are proposed.

The technical scheme adopted by the present invention for solving the above-mentioned problems is: it includes Delta servo motor, main control board, lead screw, pressure sensor and display, lead screw is installed on the output shaft of Delta servo motor, pressure sensor is fixedly installed on On the lead screw, the pressure sensor is connected to the main control board through the connection line, the Delta servo motor is connected to the main control board through the connection line, the display is connected to the main control board through the connection line, and the pressure sensor feeds back the pressure indication to the main control board. The main control board feeds back the pressure indication of the pressure sensor to the display, the main control board controls the servo motor, the pointer of the meter is set on the rotating shaft of the meter motor, the groove on the meter pointer is set above the rotating shaft of the meter motor, and the pressure sensor Set above the instrument pointer.

Said method is realized according to the following steps:

Step 1: The bottom end of the pressure sensor on the lead screw is the starting point, and it is recorded through the main control board to determine the initial starting point;

Step 2: Switch the servo motor through the main control board console, drive the lead screw to rotate through the Delta servo motor, and the lead screw moves vertically downwards. The pressure sensor starts the stable stage of pressure acquisition, and the distance moved downward from the initial starting point is Y mm , through the main control board to record the distance Y mm that the pressure sensor moves downward and display it on the display;

Step 3: Use the main control panel to reach the servo motor and make the screw drive the pressure sensor to move downwards, so that the pointer of the meter is fixed on the rotating shaft of the meter motor, the crimping is completed, and the pressure sensor is released from the initial starting point The downward moving distance is Z mm, and the reading of the pressure sensor is X Newton, and the downward moving distance Z mm of the pressure sensor is recorded through the main control board and displayed on the display;

Step 4: Therefore, it is obtained that the optimal height of crimping positioning is h mm, h=(Z-Y)/2+Y;

Step 5: The value obtained from the optimum height of crimping in step 4 is the standard. The standard height when the instrument pointer is set on the rotating shaft of the instrument motor for crimping installation is h mm, and the pressure sensor is run downward Input the distance h mm into the main control panel for calibration, and each time the meter pointer is installed on the meter motor, the pressure sensor runs downward from the initial starting point for a distance of h mm, and then the crimping work of the meter pointer installed on the meter motor is completed.

The present invention has the following beneficial effects:

1. The system of the present invention provides the connection between the crimping pressure and the crimping depth position, adopts automatic crimping depth measurement and positioning, does not need manual adjustment and calibration at all, and through the built-in algorithm and precise positioning of the servo motor, the instrument pointer 6 is installed on the instrument motor 7, which completes the cumbersome depth position positioning at one time, simplifies the adjustment process, greatly improves the performance and accuracy indicators of the equipment, optimizes the operation process, and improves the installation of the instrument pointer 6 on the instrument motor. 7 on the work efficiency.

2. The installation quality of the instrument pointer 6 installed on the instrument motor 7 is effectively improved, and the product repair rate is reduced. Even if there are errors caused by other influencing factors, it only needs to be readjusted again to work. At the same time, the main control board 2 of the system has the function of storing product classification schemes. As long as the adjustment is made once, the main control board 2 in the system will store all the position data in the pressing process. To switch products, you only need to select the desired production in the system. The product, the system will automatically adjust to the position plan for pressing the product, which is extremely convenient.

Description of drawings

Fig. 1 is the schematic diagram of the control principle that the meter pointer 6 is installed on the meter motor 7 in the present invention, and Fig. 2 is a schematic diagram of the numerical change on the pressure sensor 4 with the meter pointer 6 installed on the meter motor 7, the abscissa is the time unit and the vertical The coordinates are the pressure unit in Newton, the solid line curve is the pressure value change curve, and the position I is the pressure stable stage and the best height of crimping on the pressure value change curve.

detailed description

Specific embodiment 1: This embodiment is described in conjunction with Fig. 1-Fig. 2. The auto meter pointer pressure self-positioning mechanism and positioning method described in this embodiment include a Delta servo motor 1, a main control board 2, a wire The rod 3, the pressure sensor 4 and the display 5, the lead screw 3 is installed on the output shaft of the Delta servo motor 1, the pressure sensor 4 is fixedly installed on the lead screw 3, the pressure sensor 4 is connected with the main control board 2 through the connection line, and the platform The servo motor 1 is connected to the main control board 2 through the connection line, the display 5 is connected to the main control board 2 through the connection line, the pressure sensor 4 feeds back the pressure indication to the main control board 2, and the main control board 2 transmits the pressure of the pressure sensor 4 to the main control board 2. The indication is fed back to the display 5, the main control panel 2 console reaches the servo motor 1, the instrument pointer 6 is set on the rotating shaft of the instrument motor 7, the groove on the instrument pointer 6 is set above the upper rotating shaft of the instrument motor 7, and the pressure sensor 4 Set above the instrument pointer 6.

Specific embodiment two: this embodiment is described in conjunction with Fig. 1-Fig. 2, a kind of self-positioning mechanism and positioning method for the pointer pressure of automobile instrument described in this embodiment, described method is realized according to the following steps:

Step 1: The bottom end of the pressure sensor 4 on the lead screw 3 is the initial origin, and is recorded through the main control board 2 to determine the initial starting point;

Step 2: Control the Delta servo motor 1 switch through the main control board 2, drive the lead screw 3 to rotate through the Delta servo motor 1, and the lead screw 3 moves vertically downwards. The pressure sensor 4 starts the stable stage of pressure acquisition, from the initial starting point downward The moving distance is Y millimeters, and the distance Y millimeters that the pressure sensor 4 moves downwards is recorded by the main control board 2 and displayed on the display 5;

Step 3: Control the servo motor 1 through the main control board 2 and make the screw 3 drive the pressure sensor 4 to continue to move downward, so that the instrument pointer 6 is fixed on the rotating shaft of the instrument motor 7, the crimping is completed, and the pressure is out of the stable stage , the distance that the pressure sensor 4 moves downwards from the initial starting point is Z millimeters, and the indication of the pressure sensor 4 is X Newton, and the distance Z millimeters that the pressure sensor 4 moves downwards is recorded by the main control board 2 and displayed on the display 5;

Step 4: Therefore, it is obtained that the optimal height of crimping positioning is h mm, h=(Z-Y)/2+Y;

Step 5: The value obtained from the optimum height of crimping in step 4 is the standard. The standard height when the instrument pointer 6 is set on the rotating shaft of the instrument motor 7 for crimping installation is h mm, and the pressure sensor 4 The distance h mm running downward is input into the main control panel 2 for calibration, and the distance that the pressure sensor 4 runs downward from the initial starting point is h mm when the meter pointer 6 is installed on the meter motor 7 each time, and then the meter pointer 6 is installed on the Crimp work on meter motor 7.

Claims (1)

1. A positioning method for a pressure self-positioning mechanism of an automobile meter pointer, which includes a Delta servo motor (1), a main control panel (2), a lead screw (3), a pressure sensor (4) and a display (5) , the lead screw (3) is installed on the output shaft of the Delta servo motor (1), the pressure sensor (4) is fixedly installed on the lead screw (3), and the pressure sensor (4) is connected to the main control board (2) through the connection line Connection, the Delta servo motor (1) is connected to the main control board (2) through a connecting line, the display (5) is connected to the main control board (2) through a connecting line, and the pressure sensor (4) feeds back the pressure indication to the main control board board (2), the main control board (2) feeds back the pressure indication of the pressure sensor (4) to the display (5), the main control board (2) controls the servo motor (1), and the instrument pointer (6) is set at On the rotating shaft of the meter motor (7), the groove on the meter pointer (6) is arranged above the upper rotating shaft of the meter motor (7), and the pressure sensor (4) is arranged above the meter pointer (6), and it is characterized in that: Said method is realized according to the following steps: Step 1: The bottom end of the pressure sensor (4) on the lead screw (3) is the starting origin, and is recorded through the main control board (2) to determine the initial starting point; Step 2: Control the Delta servo motor (1) switch through the main control board (2), drive the lead screw (3) to rotate through the Delta servo motor (1), and the lead screw (3) moves the pressure sensor (4) vertically downward ) starts the stable stage of pressure acquisition, the distance moved downwards from the initial starting point is Y millimeters, and the distance Y millimeters moved downwards by the main control board (2) records the pressure sensor (4) and displays it on the display (5); Step 3: Control the servo motor (1) through the main control panel (2) and make the screw (3) drive the pressure sensor (4) to continue to move downward, so that the instrument pointer (6) is fixedly installed on the instrument motor (7) On the rotating shaft, the crimping is completed and the pressure is out of the stable stage. The distance that the pressure sensor (4) moves downward from the initial starting point is Z millimeters, and the reading of the pressure sensor (4) is X Newton. Through the main control board (2) Record the distance Z millimeters that the pressure sensor (4) moves downwards and display on the display (5); Step 4: Therefore, it is obtained that the optimal height of crimping positioning is h mm, h=(Z-Y)/2+Y; Step 5: The value obtained from the optimal height of crimping in step 4 is the standard. The standard height when the instrument pointer (6) is set on the rotating shaft of the instrument motor (7) for crimping installation is h mm, and Input the downward running distance h mm of the pressure sensor (4) into the main control panel (2) for calibration, and each time the instrument pointer (6) is installed on the instrument motor (7), the pressure sensor (4) is downward from the initial starting point The distance of running is h millimeter, and then finish the crimping work that meter pointer (6) is installed on the meter motor (7).