CN111890683B - Electromagnetic automatic 3D printing workbench - Google Patents

Abstract

The invention provides an electromagnetic automatic 3D printing workbench, comprising: the workpiece tray is positioned on the top surface of the magnetic seat; the magnetic seat is provided with an electromagnet on one side facing the workpiece tray, and the workpiece tray is provided with an iron sheet on one side facing the magnetic seat and at the position of the electromagnet; the power supply supplies power to the coil of the electromagnet. The workbench is convenient to detach and easy to clean, the time for disassembling and cleaning the printing table board can be shortened during continuous printing, and the cleaning time is saved, so that the printing efficiency is improved, and one workpiece is printed, and the workpiece is directly disassembled and replaced with another workpiece tray for printing; reliable structure and accurate positioning; because the magnetic force is absorbed by the iron sheet inlaid on the workpiece tray, the workpiece tray cannot be slightly deformed by disassembly and assembly, so that the printing precision can be ensured, the stability and the accuracy are ensured, and the cost is lower; through the effect of electromagnetism, solved fixed firm problem, through the cotter location, solved the quick location problem when installing.

Description

An electromagnetic automatic 3D printing workbench

Technical Field

The invention belongs to the technical field of 3D printing, and in particular relates to an electromagnetic automatic 3D printing workbench.

Background technique

The printing platform of a 3D printer is generally fixed mechanically, specifically by various mechanical locking mechanisms or screws. The printing platform needs to be carefully cleaned at the beginning and end of each printing of the 3D printer. It is best to remove the printing platform and carefully clean the surface and gaps. However, various mechanical locking mechanisms are cumbersome to operate, screw fixing is troublesome, and screws are prone to slipping. The locking torque is difficult to control each time, and the uneven locking force causes slight changes in the printing platform, which ultimately leads to poor printing accuracy. In addition, cleaning the printing platform during continuous printing is time-consuming, and the equipment waiting time is too long.

Summary of the invention

In order to solve the above technical problems, the present invention provides an electromagnetic automatic 3D printing workbench.

In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be a general review, nor is it intended to identify key/important components or to delineate the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.

The present invention adopts the following technical solution:

In some optional embodiments, an electromagnetic automatic 3D printing workbench is provided, comprising: a power supply, a magnetic base and a workpiece pallet located on the top surface of the magnetic base, wherein disassembly grooves are provided at both ends of the workpiece pallet; the magnetic base is provided with an electromagnet on the side facing the workpiece pallet, and the workpiece pallet is provided with an iron sheet on the side facing the magnetic base and at a position corresponding to the electromagnet; the power supply supplies power to the coil of the electromagnet, and a switch is provided on the power supply circuit of the power supply to control the on and off of the electromagnet.

In some optional embodiments, the iron sheet is selected to be 2Cr13.

In some optional embodiments, the electromagnetic automatic 3D printing workbench further includes: a positioning pin; and a cylindrical pin groove for accommodating the positioning pin is provided on the magnetic base and the workpiece pallet.

In some optional embodiments, the workpiece pallet is made of stainless steel.

In some optional embodiments, the electromagnetic automatic 3D printing workbench further includes: a lifting device; the lifting device includes: a power motor, a motor seat, a base plate, a sleeve and a support plate, the power motor is installed on the base plate through the motor seat, the driving shaft of the power motor is connected to the sleeve through a ball screw transmission mechanism, the support plate is arranged on the top of the sleeve, and the magnetic seat and the workpiece pallet are arranged on the support plate.

In some optional embodiments, the liftable device further includes: a guide rail, a slider and a slide plate, the slide plate is connected to the guide rail via the slider, and the sleeve is connected to the slide plate.

In some optional embodiments, the electromagnetic automatic 3D printing workbench further includes: a fuselage; the fuselage includes: a fuselage main body and a reference plate, the reference plate is arranged on the top of the fuselage main body, a square groove is opened in the middle of the reference plate, and the magnetic seat and the workpiece pallet are lifted and lowered in the square groove by the lifting device.

In some optional embodiments, the fuselage further includes: a mounting plate and shockproof foot cups; the fuselage main body is welded from square tubes, the shockproof foot cups are arranged at the bottom of the fuselage main body, and the mounting plate is arranged on the fuselage main body; the guide rail is installed on the mounting plate.

The beneficial effects brought by the present invention are as follows: the workbench is easy to disassemble and clean, and the time for disassembly and cleaning of the printing table can be shortened during continuous printing, saving cleaning time, thereby improving printing efficiency. After printing a workpiece, it can be directly disassembled and replaced with another workpiece tray for printing; the structure is reliable and the positioning is precise; because the magnetic force adsorbs the iron sheet embedded on the workpiece tray, the disassembly and assembly will not cause slight deformation to the workpiece tray, so the printing accuracy can be guaranteed and it is stable and accurate, and the cost is low; the electromagnetic effect solves the problem of firm fixation, and the pin positioning solves the problem of quick positioning during installation.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic structural diagram of the present invention;

FIG2 is a schematic diagram of the power supply of the present invention for supplying power to a workbench;

Figure 3 is a schematic diagram of the magnetic base structure;

FIG4 is a schematic diagram of the structure of a 3D printer of the present invention;

FIG5 is a schematic structural diagram of a fuselage of the present invention;

FIG. 6 is a schematic structural diagram of the liftable device of the present invention.

Detailed ways

The following description and accompanying drawings fully demonstrate specific embodiments of the present invention so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent possible variations only. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments.

As shown in FIGS. 1 to 6 , in some illustrative embodiments, the present invention provides an electromagnetic automatic 3D printing workbench, comprising: a magnetic base 414 and a workpiece pallet 415 located on the top surface of the magnetic base 414, wherein the magnetic base 414 and the workpiece pallet 415 form a printing table surface of the workbench 400. The magnetic base 414 is a mechanism for connecting the workpiece pallet 415, and can turn on and off the magnetic force to control the installation and removal of the workpiece pallet 415. Disassembly slots 422 are provided at both ends of the workpiece pallet 415 to facilitate the removal and handling of the workpiece pallet.

The magnetic seat 414 is provided with an electromagnet 416 on the side facing the workpiece pallet 415, and the workpiece pallet 415 is provided with an iron sheet 417 on the side facing the magnetic seat 414 and at a position corresponding to the electromagnet 416. The power supply 418 supplies power to the coil of the electromagnet 416, and a switch 419 is provided on the power supply circuit of the power supply 418 to control the on and off of the electromagnet 416. When the electromagnet 416 is powered on to generate magnetic force, the workpiece pallet 415 is attracted. When the electromagnet 416 is powered off and the magnetic force disappears, the workpiece pallet 415 can be removed.

The iron sheet is selected as 2Cr13, and the workpiece tray 415 is made of stainless steel, which has small deformation, wear resistance and corrosion resistance.

The electromagnetic automatic 3D printing workbench of the present invention also includes: a positioning pin 420. A cylindrical pin groove 421 for accommodating the positioning pin 420 is provided on the magnetic seat 414 and the workpiece tray 415, so that the workpiece tray 415 can be accurately positioned during the installation process, so that the workpiece tray 415 and the magnetic seat 414 are accurately positioned, and the electromagnet 416 firmly absorbs the workpiece tray 415 when powered on, and the installation is completed.

An electromagnetic automatic 3D printing workbench of the present invention is applied to a 3D printer, and the 3D printer comprises: a laser scanning system 100, a feeding system 200, a scraper device 300, a body 500 and the workbench 400 mentioned in the present invention.

The body 500 is used to carry all systems and mechanisms of the printer.

The fuselage 500 includes: a fuselage body 501 and a reference plate 502. The reference plate 502 is arranged on the top of the fuselage body 501, and the reference plate 502 is a bearing surface and a reference surface for major components. The fuselage body 501 is a three-dimensional stable structure formed by welding square tubes.

A square groove 505 is formed in the middle of the reference plate 502, and the printing table of the workbench rises and falls in the square groove 505, which is the core working area of printing. A material bin can be set in the square groove 505, and the feeding system 200 feeds the material bin to supply ceramic slurry to the workbench 400.

The machine body 500 further includes: a horizontal adjustment mechanism 507, a mounting plate 503 and an anti-vibration foot cup 506. The anti-vibration foot cup 506 is arranged at the bottom of the machine body 501. The horizontal adjustment mechanism 507 is arranged between the machine body 501 and the reference plate 502, and is used to adjust the horizontality of the reference plate 502. The existing horizontal adjustment mechanism can be used, and it is not repeated here. The mounting plate 503 is arranged on the machine body 501 and is perpendicular to the machine body 501, and is used to install the driving part of the workbench 400. The machine body 500 further includes: a horizontal mounting plate 504, and the driving or control part of the printer can be installed on the horizontal mounting plate 504.

The workbench 400 is a liftable workbench, which is specifically lifted and lowered by a liftable device to achieve Z-direction movement of the workpiece during the printing process.

The lifting device includes: a power motor 404, a motor seat 405, a base plate 406, a sleeve 407 and a support plate 410. The power motor 404 is installed on the base plate 406 through the motor seat 405, and the base plate 406 is arranged at the bottom of the mounting plate 503. The driving shaft of the power motor 404 is connected to the sleeve 407 through a ball screw transmission mechanism, and the support plate 410 is arranged on the top of the sleeve 407. The printing table 412 of the workbench is arranged on the support plate 410. The power motor 404 drives the sleeve 407 to move up and down through the ball screw transmission mechanism, thereby driving the printing table 412 of the workbench to move up and down. The ball screw transmission mechanism is a kind of existing transmission mechanism. The ball screw is a product that converts rotary motion into linear motion, or converts linear motion into rotary motion. The specific structure is not repeated here. The beneficial effect of this combination is that the workbench can be quickly positioned and fixed, and the workbench can be quickly assembled and disassembled. The lifting workbench is a workpiece placement table and is the core working area of the whole machine. The positioning accuracy and repeated positioning accuracy of the lifting directly affect the working accuracy of the whole machine. The present invention enables the printing platform to be quickly disassembled, and the accuracy remains unchanged after installation and restoration.

The lifting device also includes: a guide rail 401, a slider 402 and a slide plate 403. The slide plate 403 is connected to the guide rail 401 through the slider 402. The sleeve 407 is connected to the slide plate 403. The guide rail 401 is set on the mounting plate 503 to provide support for the up and down movement of the sleeve, and the structure is stable.

Those skilled in the art will also appreciate that the various illustrative logic blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments herein can all be implemented as electronic hardware, computer software, or a combination thereof. In order to clearly illustrate the interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above around their functions. Whether such functions are implemented as hardware or software depends on specific applications and the design constraints imposed on the entire system. A skilled person can implement the described functions in an alternative manner for each specific application, but such implementation decisions should not be interpreted as departing from the scope of protection of the present disclosure.

Claims (6)

1. An electromagnetic automatic 3D printing workbench, characterized in that it comprises: a power supply, a magnetic seat and a workpiece tray located on the top surface of the magnetic seat, wherein disassembly slots are provided at both ends of the workpiece tray; the magnetic seat is provided with an electromagnet on a side facing the workpiece tray, and the workpiece tray is provided with an iron sheet on a side facing the magnetic seat and at a position corresponding to the electromagnet; the power supply supplies power to the coil of the electromagnet, and a switch is provided on the power supply circuit of the power supply to control the on and off of the electromagnet; It also includes: a fuselage; the fuselage includes: a fuselage main body, a reference plate, a mounting plate and a shockproof foot cup; the reference plate is arranged on the top of the fuselage main body, a square groove is opened in the middle of the reference plate, and the magnetic seat and the workpiece tray are lifted and lowered in the square groove by a lifting device; a material bin is arranged in the square groove, and a feeding system feeds material to the material bin to realize the supply of ceramic slurry to the electromagnetic automatic 3D printing workbench; The fuselage body is welded by square tubes, the shockproof foot cup is arranged at the bottom of the fuselage body, the mounting plate is arranged on the fuselage body; and the guide rail is arranged on the mounting plate. 2. An electromagnetic automatic 3D printing workbench according to claim 1, characterized in that the iron sheet is selected from 2Cr13. 3. An electromagnetic automatic 3D printing workbench according to claim 2, characterized in that it also includes: a positioning pin; a cylindrical pin groove for accommodating the positioning pin is provided on the magnetic base and the workpiece pallet. 4. An electromagnetic automatic 3D printing workbench according to claim 3, characterized in that the workpiece pallet is made of stainless steel. 5. An electromagnetic automatic 3D printing workbench according to claim 4, characterized in that it also includes: a lifting device; the lifting device includes: a power motor, a motor seat, a base plate, a sleeve and a support plate, the power motor is installed on the base plate through the motor seat, the driving shaft of the power motor is connected to the sleeve through a ball screw transmission mechanism, the support plate is arranged on the top of the sleeve, and the magnetic seat and the workpiece pallet are arranged on the support plate. 6. An electromagnetic automatic 3D printing workbench according to claim 5, characterized in that the lifting device further comprises: a guide rail, a slider and a slide plate, the slide plate is connected to the guide rail through the slider, and the sleeve is connected to the slide plate.