CN205112416U - 3D printer work platform levelness monitoring system - Google Patents

Abstract

A 3D printer working platform levelness monitoring system includes a working platform, a sensor, a control device, an execution device and a power supply device. Use the dual-axis inclination sensor to measure the X-axis and Y-axis inclination of the 3D printer working platform at the same time, and transmit the inclination signal to the 3D printer control device. The microprocessor processes the inclination signal and displays it on the display screen to monitor the level information in real time. . When the level exceeds the set threshold, the control system will send a tilt alarm and stop the relevant mechanism to suspend the printing process. The operator can adjust the corresponding leveling screws according to the tilt data on the display screen, quickly and effectively level the working platform, improve the leveling accuracy and avoid unnecessary leveling operations.

Description

3D printer working platform levelness monitoring system

technical field

The utility model relates to a levelness monitoring system of a 3D printer working platform, in particular to a levelness monitoring system of a 3D printer working platform based on a biaxial inclination sensor.

Background technique

Rapid prototyping technology has been widely used in machinery, automobile, national defense, aerospace and other fields due to the advantages of high material utilization rate and wide forming range. 3D printer is an important equipment of rapid prototyping technology. The printer uses layered manufacturing and layer-by-layer accumulation of materials to process the three-dimensional model. The levelness of the 3D printer working platform plays a vital role in the accuracy of 3D printed parts. When the working platform is tilted, it will cause motion errors of the scanning mechanism of the 3D printer, which in turn will lead to problems such as shape errors, position errors, layer slippage, and increased roughness of the printed model. Although some 3D printing equipment is equipped with manual leveling devices, the leveling accuracy is low and needs to be leveled before each printing. The adjustment process is cumbersome, and the level of the platform during the working process cannot be monitored in real time.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides an automatic monitoring system for the levelness of the 3D printer working platform based on a dual-axis inclination sensor, which can detect the inclination of the working platform in time, adjust the levelness of the working platform in time, and adjust quickly and accurately.

To achieve the above object, the technical solution of the utility model is:

Including working platform, sensor, control device, execution device and power supply device.

The working platform includes an upper heating bed and a lower supporting plate, the heating bed and the supporting plate are connected by 4 leveling screws with springs, and the 4 leveling screws are respectively located at 4 corners of the working platform.

The sensor is a dual-axis inclination sensor, which is installed at the geometric center of gravity of the bottom plane of the heated bed, and can be used to simultaneously collect the X-axis and Y-axis inclinations of the working platform. The integrated analog-to-digital conversion module in the dual-axis inclination sensor, The biaxial inclination sensor is connected to the microprocessor of the control device, and the digital quantity can be input to the microprocessor.

The control device includes a microprocessor and 4 stepping motor drivers, the microprocessor and the 4 stepping motor drivers are connected through cables, integrated as a control circuit board and arranged inside the printer base.

The execution device includes a display screen, an alarm indicator light, an X-axis moving guide rod, a Y-axis moving guide rod, a Z-axis moving guide rod and a step for driving the X-axis moving guide rod, the Y-axis moving guide rod, and the Z-axis moving guide rod. Advance motor, feeding mechanism 13 and drive the stepping motor of feeding mechanism. The display screen and alarm indicator light are arranged on the front plane of the printer base. The stepper motor that drives the feeding mechanism is located in the feeding mechanism. All be provided with stepping motor at the shaft ends of X-axis moving guide rod 2, Y-axis moving guide rod 1, Z-axis moving guide rod 4, the output end of stepping motor is all equipped with synchronous wheel, by synchronous belt synchronous wheel and X Axis moving guide rod 2, Y-axis moving guide rod 1, and Z-axis moving guide rod are connected. The display screen, alarm indicator light and 4 stepper motors are connected to the control circuit board through cables, and the above-mentioned actuators are controlled by the microprocessor.

The power supply device includes a voltage converter and related devices, which convert the input voltage into the rated voltage of different devices in the 3D printer.

The beneficial effects of the utility model are: the dual-axis inclination sensor is connected with the control device and the inclination information is displayed on the display screen, the levelness information is monitored in real time, the levelness is quickly and accurately adjusted through the inclination data in the display screen, and the inclination information is used as the control The signal performs tilt alarm control and tilt protection control on the 3D printer.

Description of drawings

Fig. 1 is a control block diagram of the utility model.

Figure 2 is a schematic front view of the structure of the utility model.

Fig. 3 is a schematic left view of the structure of the utility model.

In the figure: 1. Y-axis moving guide rod, 2. X-axis moving guide rod, 3. Leveling screw, 4. Z-axis moving guide rod, 5. Display screen, 6. Nozzle, 7. Dual-axis inclination sensor, 8 .Hot bed, 9. Support plate. 10. Base, 11. Alarm indicator light, 12. Microprocessor, 13. Feeding mechanism.

detailed description

The utility model comprises a working platform, a sensor, a control device, an execution device and a power supply device.

As shown in Figure 2: the working platform includes a heat bed 8 and a support plate 9, and the heat bed 8 and the support plate 9 are connected by 4 leveling screws 3 with springs.

The execution device includes a display screen 5, an alarm indicator light 11, an X-axis moving guide rod 2, a Y-axis moving guide rod 1, a Z-axis moving guide rod 4, and a driving X-axis moving guide rod 2, a Y-axis moving guide rod 1, and a Z-axis moving guide rod. The stepper motor of mobile guide rod 4, feed mechanism 13 and the stepper motor of driving feed mechanism. The display screen 5 and the warning indicator light 11 are arranged on the front plane of the printer base 10 . The stepper motor that drives the feeding mechanism is located in the feeding mechanism 13. All be provided with stepping motor at the shaft ends of X-axis moving guide rod 2, Y-axis moving guide rod 1, Z-axis moving guide rod 4, the output end of stepping motor is all equipped with synchronous wheel, by synchronous belt synchronous wheel and X Axis moving guide rod 2, Y-axis moving guide rod 1, and Z-axis moving guide rod 4 are connected. Display screen 5, alarm indicator light 11, and 4 stepper motors are connected to the control circuit board through cables.

The control device includes a microprocessor 12 and 4 stepper motor drivers, the microprocessor 12 is connected with the 4 stepper motor drivers through cables, integrated as a control circuit board and installed inside the printer base.

The microprocessor 12 controls the stepper motor to start and stop, and controls the movement of the X-axis moving guide rod 2, the Y-axis moving guide rod 1, and the Z-axis moving guide rod 4, thereby controlling the position of the 3D printer nozzle 6.

The biaxial inclination sensor 7 is installed at the geometric center of gravity of the bottom plane of the hot bed 8 of the working platform, and is connected with the microprocessor 12, and the relevant inclination information is transmitted to the microprocessor 12. After the microprocessor 12 processes the inclination information, the X The degree of inclination of the axis and the Y axis is displayed on the display screen 5, and the levelness of the working platform is monitored in real time.

The operator can accurately level the working platform by tightening or loosening the corresponding leveling screws 3 with springs by observing the inclination degrees of the X-axis and the Y-axis in the display screen 5 .

The utility model sets the tilt safety threshold for the tilt information. When the tilt is within the threshold range, the 3D printer works normally. When the tilt exceeds the set threshold, the microprocessor 12 controls the alarm indicator 11 to light up, and stops all stepping motors at the same time. Pause the printing process. The staff can choose to continue printing in the operation display screen 5 after completing the leveling operation with the tilt information in the display screen 5, and the 3D printer starts working again.

Claims (1)

1. A 3D printer working platform levelness monitoring system is characterized in that: it comprises a working platform, a sensor, a control device, an execution device and a power supply unit; The working platform includes an upper heating bed (8) and a lower support plate (9). The heating bed (8) and the support plate (9) are connected by 4 leveling screws (3) with springs, and the 4 leveling screws are respectively Located at the 4 corners of the working platform; The sensor is a biaxial inclination sensor (7), and the biaxial inclination sensor (7) is installed at the geometric center of gravity of the bottom plane of the heated bed (8), which can be used to simultaneously collect the X-axis and Y-axis inclination angles of the working platform, and the biaxial inclination angle The integrated analog-to-digital conversion module in the sensor (7) connects the biaxial inclination sensor to the microprocessor (12) of the control device, and can input digital quantities to the microprocessor (12); The control device includes a microprocessor (12) and 4 stepper motor drivers, the microprocessor (12) is connected to the 4 stepper motor drivers through cables, and integrated into a control circuit board and installed inside the printer base; The execution device includes a display screen (5), an alarm indicator light (11), an X-axis moving guide rod (2), a Y-axis moving guide rod (1), a Z-axis moving guide rod (4) and a driving X-axis moving guide rod. The stepping motor of rod (2), Y-axis moving guide rod (1), Z-axis moving guide rod (4), feeding mechanism (13) and the stepping motor of driving feeding mechanism; display screen (5), alarm indicator light (11) be located at the front plane of printer base; The stepping motor of driving feed mechanism is located in the feed mechanism (13); Move guide rod (2) in X axis, Y axis move guide rod (1), Z axis move guide rod The shaft ends of (4) are all provided with stepper motors, and the output ends of the stepper motors are all equipped with synchronous wheels, and the synchronous wheels are moved with the X-axis moving guide rod (2), the Y-axis mobile guide rod (1), the Z axis by the synchronous belt. The shaft moving guide rod (4) is connected; the display screen (5), the alarm indicator light (11), and 4 stepper motors are connected to the control circuit board through cables; The power supply device includes a voltage converter and related devices, which convert the input voltage into the rated voltage of different devices in the 3D printer.