CN113245565B

CN113245565B - Construction bin system for large metal 3D printing equipment

Info

Publication number: CN113245565B
Application number: CN202110650905.3A
Authority: CN
Inventors: 王冠博; 李建杰; 何刚文; 赵豪; 侯志轩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-10-12
Anticipated expiration: 2041-06-11
Also published as: CN113245565A

Abstract

The application discloses a construct storehouse system for large-scale metal 3D printing apparatus, including positioning mechanism, positioning mechanism includes: the primary positioning assembly is arranged between the corresponding working station and the construction bin and is used for detecting whether the construction bin reaches the corresponding working station or not; the first positioning mechanism is arranged between the corresponding working station and the driving cylinder, and the second positioning mechanism is arranged between the corresponding working station and the forming cylinder; the first positioning mechanism is used for positioning the construction bin at the lower part of the construction bin, and the second positioning mechanism is used for positioning the construction bin at the upper part of the construction bin; the controller is used for controlling the building bin to stop moving when the primary positioning assembly detects that the building bin reaches the corresponding working station, controlling the first positioning mechanism to act, and controlling the second positioning mechanism to act after the first positioning mechanism finishes positioning the building bin. The construction bin system for the large metal 3D printing equipment can realize accurate positioning of a construction bin in a moving process.

Description

Construction bin system for large metal 3D printing equipment

Technical Field

The invention belongs to the technical field of 3D printing equipment, and particularly relates to a construction bin system for large metal 3D printing equipment.

Background

In the 3D printing equipment applying the selective melting technology, the equipment mainly comprises a printing bin above and a building bin below, the printing work is carried out in the closed building bin, after the printing is finished, a workpiece needs to be taken out of the building bin and subjected to powder cleaning, and the process needs to be stopped for processing.

In recent years, as 3D printing technology is matured, the size of a printed workpiece is larger and larger, and research and development personnel in the industry aim at metal 3D printing of large workpieces. Because the taking-out of the workpiece and the powder cleaning need to be stopped, the utilization rate of the equipment and the printing work efficiency are affected, the assembly of the construction bin of the printing equipment needs to achieve certain precision, when the 3D printing equipment is used for printing large-sized workpieces, the size of the construction bin needs to be correspondingly increased, the two-point short plate is particularly prominent, and the design difficulty of the large-sized metal 3D printing equipment and the construction bin is also improved.

In order to solve the technical problem, the inventor of the invention imagines that the switching work is carried out by arranging a plurality of construction bins so as to save the time for taking out the middle workpiece and cleaning the powder, and the construction bins are separately arranged and are divided into a forming cylinder with higher requirement on the upper precision and a driving cylinder with lower requirement on the lower precision, so that the assembly difficulty of the construction bins is reduced, and the required precision is favorably reached. However, in order to achieve a good printing operation, the problem of accurate positioning of the building bin in the moving process needs to be considered, because the forming cylinder and the driving cylinder are connected separately and the building bin for a large-sized workpiece has a large size, a phenomenon that the position of the upper forming cylinder slightly deviates from the driving cylinder due to factors such as shaking and the like may occur in the moving process, and thus although the building bin is positioned at a designated position, the alignment of the upper forming cylinder and the printing bin is inaccurate, and complete consistency of the forming cylinder and the driving cylinder at the designated position cannot be ensured.

Accordingly, the prior art is in need of improvement and development.

Disclosure of Invention

An object of the embodiment of the application is to provide a construct storehouse system for large-scale metal 3D printing apparatus, can realize constructing the accurate location of storehouse in the removal in-process.

For solving its technical problem, the storehouse system of building that is used for large-scale metal 3D printing apparatus that this application embodiment provided constructs the storehouse including two at least workstations and two at least storehouses of building, at least two it is at least two to construct the storehouse circulation switches between the workstations, it includes the shaping jar and the driving cylinder that the components of a whole that can function independently set up to construct the storehouse, the driving cylinder is located shaping jar below still includes:

positioning mechanism, at least one the workstation with be equipped with between the storehouse of founding positioning mechanism, positioning mechanism includes:

the initial positioning assembly is arranged between the corresponding working station and the construction bin, and is used for detecting whether the construction bin reaches the corresponding working station or not;

the first positioning mechanism is arranged between the corresponding working station and the driving cylinder, and the second positioning mechanism is arranged between the corresponding working station and the forming cylinder; the first positioning mechanism is used for positioning the construction bin at the lower part of the construction bin, and the second positioning mechanism is used for positioning the construction bin at the upper part of the construction bin so as to position and fix the construction bin relative to the corresponding working station;

the controller is used for controlling the construction bin to stop moving when the primary positioning assembly detects that the construction bin reaches the corresponding working station, controlling the first positioning mechanism to act, and controlling the second positioning mechanism to act after the first positioning mechanism finishes positioning the construction bin.

The utility model provides a found storehouse system for large-scale metal 3D printing apparatus, construct the storehouse through the preliminary definite storehouse of establishing of primary positioning component and remove corresponding work station, carry out basic accurate location to constructing the storehouse through first positioning mechanism in the lower part of constructing the storehouse, rethread second positioning mechanism fixes a position on the upper portion of constructing the storehouse, make to construct the storehouse and eliminate the removal error of switching in-process as far as possible, and then relative corresponding work station realizes omnidirectional, accurate location.

Furthermore, the first positioning mechanism moves along the vertical direction to position the construction bin, and the second positioning mechanism moves along the horizontal direction to position the construction bin.

Furthermore, the second positioning mechanisms are provided with two groups, and the two groups of second positioning mechanisms are respectively arranged on two sides of the building bin along the moving direction of the building bin.

Further, above-mentioned first positioning mechanism includes first constant head tank, first locating piece and first drive assembly, first constant head tank for the lower part of constructing the storehouse is fixed to be set up, and the notch is up, first locating piece is located on corresponding work station, first drive assembly with first locating piece is connected, in order to drive first locating piece carries out vertical reciprocating motion and gets into or leave first constant head tank.

Further, the first positioning groove is a V-shaped groove, and the first positioning member is arranged in a rolling manner.

Further, above-mentioned primary positioning assembly includes inductor and response piece, the response piece is relative construct the fixed setting in storehouse, the inductor is located on corresponding work station, the inductor is used for right the response piece detects.

Furthermore, the inductor comprises a first inductor and a second inductor, the first inductor is arranged at the front end of the second inductor along the direction that the construction bin enters the corresponding working station, and after the construction bin is positioned on the corresponding working station, the induction sheet corresponds to the first inductor in position.

Further, the first positioning mechanism is provided with a pressure sensor, and the pressure sensor is used for detecting the pressure from the building bin, which is applied to the first positioning mechanism.

Furthermore, the second positioning mechanism comprises a second positioning groove, a second positioning element and a second driving assembly, the second positioning groove is fixedly arranged relative to the upper part of the building bin, the notch faces horizontally, the second positioning element is arranged on a corresponding working station, and the second driving assembly is connected with the second positioning element so as to drive the second positioning element to perform horizontal reciprocating motion to enter or leave the second positioning groove.

Further, this construct storehouse system still includes sliding connection's guide rail and slip table, two at least workstations pass through the guide rail is connected, construct the storehouse with the slip table is connected, the slip table is equipped with the locating pin, construct the storehouse and be equipped with corresponding locating hole, the locating pin with the locating hole is connected.

The construction bin system for the large-scale metal 3D printing equipment has the advantages that the first positioning mechanism and the second positioning mechanism are used for respectively positioning the lower driving cylinder and the upper forming cylinder, the position offset of the forming cylinder relative to the driving cylinder due to factors such as shaking or inertial movement is eliminated, the upper part (namely the forming cylinder) of the construction bin is ensured to be accurately butted with the printing bin of the printing equipment without error on the basis of accurate position positioning of the construction bin on a printing station, the preliminary judgment is carried out by the preliminary positioning assembly to stop the movement of the construction bin, then the first positioning mechanism is used for positioning the driving cylinder, finally the second positioning mechanism is used for positioning the forming cylinder, the error rate of positioning is reduced, the problem that the upper forming cylinder is positioned firstly and the lower driving cylinder can move relatively to influence the final positioning accuracy is avoided, the large-size construction bin can realize omnibearing and accurate positioning relative to the corresponding working station, and the forming cylinder on the upper part can be accurately connected with the printing bin above the construction bin.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic structural diagram of a build bin system for a large-scale metal 3D printing apparatus according to an embodiment of the present application.

Fig. 2 is another schematic structural diagram of a build bin system for a large-scale metal 3D printing apparatus according to an embodiment of the present application.

Fig. 3 is an enlarged view of fig. 1 at K.

Fig. 4 is a partial structural schematic diagram of a first positioning mechanism of a build bin system for a large-scale metal 3D printing apparatus according to an embodiment of the present application.

Fig. 5 is a partial structural schematic diagram of a second positioning mechanism of a build bin system for a large-scale metal 3D printing apparatus according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a sliding table of a build bin system for a large-scale metal 3D printing apparatus according to an embodiment of the present application.

Fig. 7 is a working schematic diagram of an initial positioning assembly of a build bin system for a large-scale metal 3D printing apparatus according to an embodiment of the present application.

Fig. 8 is a schematic partial structural diagram of a build bin system for a large-scale metal 3D printing apparatus according to an embodiment of the present application.

Description of reference numerals: 100. A primary positioning component; 110. an induction sheet; 120. a first inductor; 130. a second inductor; 200. a first positioning mechanism; 210. a first positioning groove; 220. a first positioning member; 230. a first drive assembly; 231. an electric cylinder; 232. a drive plate; 233. a guide post; 234. a guide plate; 300. a second positioning mechanism; 310. a second positioning groove; 320. a second positioning member; 330. a second drive assembly; 410. a guide rail; 411. an anti-collision block; 420. a sliding table; 421. an I-shaped roller; 422. a servo motor; 423. a guide wheel; 424. a blocking member; 425. positioning pins; 500. a structural frame; 510. a first frame body; 520. a second frame body; 530. a third frame body; 540. a mounting frame; 600. constructing a bin; 610. a forming cylinder; 620. a drive cylinder; 700. a working station; 710a, a print station; 710b, cleaning the station.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

As shown in fig. 1, 2 and 3, the present invention relates to a build bin system for a large metal 3D printing apparatus, including at least two work stations 700 and at least two build bins 600, where at least two build bins 600 are cyclically switched between at least two work stations 700, where the build bin 600 includes a forming cylinder 610 and a driving cylinder 620 which are separately arranged, and the driving cylinder 620 is located below the forming cylinder 610, and further includes:

positioning mechanism, at least one be equipped with between work station 700 and construct the storehouse 600 positioning mechanism includes:

the primary positioning assembly 100 is arranged between the corresponding working station 700 and the construction bin 600, and the primary positioning assembly 100 is used for detecting whether the construction bin 600 reaches the corresponding working station 700;

the first positioning mechanism 200 is arranged between the corresponding working station 700 and the driving cylinder 620, and the second positioning mechanism 300 is arranged between the corresponding working station 700 and the forming cylinder 610; the first positioning mechanism 200 is used for positioning the construction bin 600 at the lower part of the construction bin 600, and the second positioning mechanism 300 is used for positioning the construction bin 600 at the upper part of the construction bin 600, so that the construction bin 600 is fixedly positioned relative to the corresponding work station 700;

a controller, configured to control the building bin 600 to stop moving when the primary positioning assembly 100 detects that the building bin 600 reaches the corresponding working station 700, control the first positioning mechanism 200 to act, and control the second positioning mechanism 300 to act after the first positioning mechanism 200 completes positioning of the building bin 600.

In specific application, at least two working stations 700 are a printing station 710a and a cleaning station 710b of a large-scale metal 3D printing device (hereinafter referred to as a printing device), at least a positioning mechanism is arranged on the printing station 710a, and a printing bin of the printing device corresponding to the printing station 710a is located below the printing bin when the construction bin 600 moves to the printing station 710 a. The at least two build bins 600 respectively work synchronously at the printing station 710a and the cleaning station 710b, when the build bin 600 on the printing station 710a is printed, the build bin is moved to the cleaning station 710b to take out the workpiece and clean the powder, and the cleaned build bin 600 is switched to the printing station 710a to perform the next printing operation, so that the at least two build bins 600 are switched between the at least two working stations 700 in a circulating manner. During working, the switched construction bin 600 moves towards the printing station 710a, the primary positioning assembly 100 detects whether the construction bin 600 reaches the printing station 710a, the position of the construction bin 600 is preliminarily judged, when the primary positioning assembly 100 detects that the construction bin 600 reaches the printing station 710a, the controller controls the construction bin 600 to stop moving and controls the first positioning mechanism 200 to act, the construction bin 600 is positioned at the lower part of the construction bin 600, the movement of the construction bin 600 is cut off to be positioned at the designated position of the printing station 710a, and after the first positioning mechanism 200 finishes the positioning work, the controller controls the second positioning mechanism 300 to act at the upper part of the construction bin 600 to position, so that the construction bin 600 eliminates the movement error in the switching process as much as possible.

In a specific application, the driving cylinder 620 also has the function of loading the build bin 600, and particularly for the build bin 600 used for a large-scale metal 3D printing device, as the size increases, the load at the lower part of the build bin 600 is larger, and the upper part is easier to shake or the inertia displacement is larger when the movement is stopped. According to the technical scheme, the lower driving cylinder 620 and the upper forming cylinder 610 are respectively positioned by the first positioning mechanism 200 and the second positioning mechanism 300, the lower driving cylinder 620 which gives consideration to movement and load is stably and primarily accurately positioned, the position deviation of the upper forming cylinder 610 relative to the driving cylinder 620 caused by factors such as shaking or inertial movement is eliminated, the accurate positioning of the constructed bin 600 on the printing station 710a is ensured, simultaneously, the upper part (namely the forming cylinder 610) of the constructed bin 600 can be accurately butted with the printing bin of the printing equipment without error, the primary judgment is carried out by the primary positioning assembly 100, then the first positioning mechanism 200 positions the driving cylinder 620, finally, the second positioning mechanism 300 carries out positioning logic for the forming cylinder 610, the positioning error rate is reduced, the situation that the upper forming cylinder 610 is positioned firstly and the lower driving cylinder 620 can also move relatively is avoided, affecting the final positioning accuracy and even adversely affecting the connection between the driving cylinder 620 and the forming cylinder 610.

Specifically, currently, the breadth of a workpiece which can be printed on the market is basically within 500mm × 500mm, a large workpiece can be defined for a workpiece with a breadth (i.e., the horizontal cross-sectional area of the workpiece) exceeding 500mm × 500mm, the size of a printing work area with a building bin as a core is closely related to the size of the printed workpiece, when the size of the printed workpiece is increased, the size of the building bin needs to be correspondingly increased, and a metal 3D printing device which is matched with the building bin and is required for the large workpiece with the breadth exceeding 500mm × 500mm can be defined as the large metal 3D printing device.

In a specific application, two working stations 700 can be provided, which are a printing station 710a and a cleaning station 710b, respectively, and two building bins 600 can be provided, the two working stations 700 form a closed-loop connection, the two building bins 600 work synchronously on the two working stations 700, respectively, after a round of printing work is completed, the building bin 600 on the original printing station 710a is switched to the cleaning station 710b, and the building bin 600 on the original cleaning station 710b is switched to the printing station 710 a. The positioning mechanism may be provided solely at the print station 710a, or may be provided at both the print station 710a and the cleaning station 710 b.

Specifically, the primary positioning assembly 100 may send a detection message to the controller when detecting that the building bin 600 reaches the corresponding work station 700, and after the first positioning mechanism 200 completes the positioning work, may send a positioning message to the controller, and the controller controls the next work according to the detection message and the positioning message.

In some preferred embodiments, the first positioning mechanism 200 is operated in a vertical direction to position the construction container 600, and the second positioning mechanism 300 is operated in a horizontal direction to position the construction container 600. In the specific application, the construction bin 600 is conventionally arranged on the ground or is arranged on a platform on the ground to move, according to the technical scheme, the first positioning mechanism 200 acts along the vertical direction to provide a positioning effect in the vertical direction for the construction bin 600 (specifically, the driving cylinder 620), the construction bin 600 is relatively abutted against the ground or the platform on the ground, for a large construction bin with a large lower load, the movement and the positioning of the construction bin 600 can be simply and quickly locked, and then the second positioning mechanism 300 acts along the horizontal direction to provide a positioning effect in the horizontal direction for the construction bin 600 (specifically, the forming cylinder 610), so that the construction bin 600 is accurately positioned in the two-dimensional direction.

In some preferred embodiments, two sets of the second positioning mechanisms 300 are provided, and the two sets of the second positioning mechanisms 300 are respectively provided on two sides of the construction chamber 600 along the moving direction of the construction chamber 600. Thereby, the build bin 600 can be positioned and locked on both sides of the forming cylinder 610.

In some preferred embodiments, there are two sets of the first positioning mechanisms 200, and the two sets of the first positioning mechanisms 200 are respectively disposed on two sides of the construction chamber 600 along the moving direction of the construction chamber 600.

Specifically, the two sets of first positioning mechanisms 200 are disposed near the bottom of the driving cylinder 620, and the two sets of second positioning mechanisms 300 are disposed near the top of the forming cylinder 610. Through the technical scheme, the lower part of the construction bin 600 can be positioned and locked as close as possible to the moving plane of the construction bin 600 (the ground or the platform on the ground is the moving plane), the upper part of the construction bin 600 is positioned as close as possible to the butt joint with the printing bin, and the two ends of the large-scale construction bin are positioned more accurately through the two groups of positioning mechanisms, so that the construction bin can be positioned accurately at a specified position under the condition, the alignment connection between the upper part and the printing bin is accurate, and the influence on the accurate positioning caused by the size increase of the construction bin is avoided.

In some preferred embodiments, the first positioning mechanism 200 includes a first positioning slot 210, a first positioning member 220 and a first driving assembly 230, the first positioning slot 210 is fixedly disposed with respect to the lower portion of the construction bin 600, the slot opening faces upward, the first positioning member 220 is disposed at the corresponding work station 700, and the first driving assembly 230 is connected to the first positioning member 220 to drive the first positioning member 220 to reciprocate vertically into or out of the first positioning slot 210.

In some preferred embodiments, the first positioning groove 210 is a V-shaped groove, and the first positioning member 220 is rollably disposed. In the concrete application, when constructing storehouse 600 and reaching the assigned position of work station 700, but the position has when deviating, the both sides wall of first locating slot 210 slope plays the guide effect, first locating piece 220 that the roll set up when the drive through first drive assembly 230 downstream gets into first locating slot 210, roll along the lateral wall of first locating slot 210, thereby it slides to drive and construct storehouse 600, until first locating piece 220 supports in the bottom of first locating slot 210, the axis in V type groove promptly, through this technical scheme, can eliminate the position deviation who constructs the storehouse 600 initial positioning, do benefit to and realize accurate location. Specifically, the first positioning member 220 may employ a roller. As a more preferable embodiment, the first positioning element 220 is a double-roller arrangement, and by adopting the technical scheme, the building bin 600 can be driven to move smoothly, so that the position deviation can be eliminated. Specifically, the groove wall of the first positioning groove 210 is inclined toward the moving direction of the construction tank 600. In a preferred embodiment, the first positioning mechanism 200 is provided in two sets, and is respectively provided on both sides of the construction chamber 600 along the moving direction of the construction chamber 600.

In some preferred embodiments, the first positioning mechanism 200 is provided with a pressure sensor (not shown) for detecting the pressure applied to the first positioning mechanism 200 from the building bin 600. In a specific application, when the first positioning mechanism 200 completes positioning the building bin 600, a reaction force from the building bin 600 is received, and the pressure sensor detects the reaction force, so that whether the first positioning mechanism 200 completes positioning the component bin can be rapidly and sensitively determined. Specifically, the pressure sensor may be connected to the controller, and when the pressure sensor detects a pressure value, the controller controls the second positioning mechanism 300 to operate according to the information.

In some preferred embodiments, as shown in fig. 4, the first driving assembly 230 includes an electric cylinder 231, a driving plate 232, a guide post 233 and a guide plate 234, the driving plate 232 is connected to an output end of the electric cylinder 231 and is connected to the first positioning member 220, the guide plate 234 is relatively fixedly connected to the electric cylinder 231, one end of the guide post 233 is connected to the driving plate 232, and the other end of the guide post 233 penetrates through the guide plate 234. In the concrete application, the driving cylinder 620 still possesses the effect that storehouse 600 was built to load, especially to the storehouse 600 of building that is used for large-scale metal 3D printing apparatus, the load of lower part is bigger, drives through having accurate thrust and the controllable electric jar 231 of thrust, when can guaranteeing that first locating piece 220 advances line location, can drive and build storehouse 600 and remove and correct positional deviation and realize firm location to support through guide pillar 233, make the power of first locating piece 220 output more stable. Specifically, the guide plate 234 may be provided with a corresponding through hole for the guide post 233 to move, and as a preferred embodiment, the guide plate 234 is provided with a guide sleeve so that the guide post 233 moves along the guide sleeve to provide a more stable supporting force. Preferably, the guide posts 233 are four and distributed around the electric cylinder 231.

As shown in fig. 5 and 8, in some preferred embodiments, the second positioning mechanism 300 includes a second positioning slot 310, a second positioning member 320, and a second driving assembly 330, the second positioning slot 310 is fixedly disposed relative to the upper portion of the construction bin 600, the slot is horizontally oriented, the second positioning member 320 is disposed at a corresponding working position 700, and the second driving assembly 330 is connected to the second positioning member 320 to drive the second positioning member 320 to horizontally reciprocate into or out of the second positioning slot 310. Further, the second positioning element 320 is a trapezoid table, and correspondingly, the second positioning groove 310 is a trapezoid groove. Specifically, the second driving assembly 330 may employ a pneumatic cylinder or a hydraulic cylinder in the prior art, and specifically, in the embodiment, the second driving assembly 330 employs a double-shaft pneumatic cylinder.

As shown in fig. 3, in some preferred embodiments, the primary positioning assembly 100 includes a sensor and a sensing piece 110, the sensing piece 110 is fixedly disposed relative to the building bin 600, the sensor is disposed at a corresponding working station 700, and the sensor is configured to detect the sensing piece 110. In particular, the sensor may employ existing technical means, such as a proximity switch.

In some preferred embodiments, the sensors include a first sensor 120 and a second sensor 130, the first sensor 120 is disposed at the front end of the second sensor 130 along the direction of the construction chamber 600 entering the corresponding work station 700, and the position of the sensing piece 110 corresponds to the position of the first sensor 120 after the construction chamber 600 is positioned at the corresponding work station 700. In specific application, when the building bin 600 enters the corresponding working station 700, the building bin passes through the first sensor 120, the first sensor 120 detects the sensing piece 110 and can send information to the controller, the controller controls the building bin 600 to decelerate according to the information, then the second sensor 130 detects the sensing piece 110 and sends corresponding detection information to the controller, and the building bin 600 is controlled to stop moving and perform subsequent positioning work. Specifically, the sensing piece 110 may be disposed at one end of the construction bin 600, the first sensor 120 is disposed at a corresponding end of the work station 700, and the second sensor 130 is disposed at the other end of the work station 700.

As shown in fig. 3 and 6, in some preferred embodiments, the construction bin system further includes a guide rail 410 and a sliding table 420 which are slidably connected, the at least two work stations 700 are connected through the guide rail 410, the construction bin 600 is connected with the sliding table 420, the sliding table 420 is provided with a positioning pin 425, the construction bin 600 is provided with a corresponding positioning hole, and the positioning pin 425 is connected with the positioning hole. In the concrete application, establish storehouse 600 through locating pin 425 and fix a position, it is accurate to guarantee to establish the hookup location between storehouse 600 and the slip table 420, and then guarantees to establish storehouse 600 and can accurately reach the assigned position of work station 700. Specifically, in the present embodiment, the first positioning element 220 and the sensing piece 110 are mounted on the sliding table 420.

In some preferred embodiments, the guide rail 410 is a steel rail, an i-shaped roller 421 is disposed at the bottom of the sliding table 420, a servo motor 422 is further disposed at the bottom of the sliding table 420, and a driving shaft of the servo motor 422 is connected to the i-shaped roller 421 to drive the i-shaped roller 421 to slide along the steel rail. Specifically, the servo motor 422 may be connected to the controller, and when the controller receives that the build bin 600 reaches a designated position of a corresponding station, the servo motor 422 is controlled to stop working.

In some preferred embodiments, the sliding table 420 is further provided with guide wheels 423, and the guide wheels 423 are located on two sides of the rail so as to be capable of sliding along the side walls of the rail. In the concrete application, through adopting I-shaped gyro wheel 421 and setting up leading wheel 423, can control the clearance on the horizontal direction between I-shaped gyro wheel 421 and the rail at less scope all the time, namely between slip table 420 and guide rail 410, the relative displacement control that probably takes place on the horizontal direction perpendicular to found storehouse 600 moving direction is at the minimum, improves the precision of constructing storehouse 600 when preliminary positioning, does benefit to the accurate location of constructing storehouse 600.

Specifically, there are two steel rails, two sets of i-shaped rollers 421 are correspondingly provided, each set of i-shaped rollers 421 is provided with two i-shaped rollers 421, the servo motor 422 is a dual-shaft output, and any corresponding two i-shaped rollers 421 in the two sets of i-shaped rollers 421 are connected to an output shaft of the servo motor 422. The guide wheels 423 are disposed at the front end or the rear end of any one of the i-shaped roller groups 421, and as a preferred embodiment, two guide wheels 423 are disposed at two ends of the corresponding i-shaped roller group.

In some preferred embodiments, the sliding table 420 is provided with blocking parts 424, the blocking parts 424 are arranged at two ends of the sliding table 420 in the moving direction, and two ends of the guide rail 410 are provided with corresponding anti-collision blocks 411.

As shown in fig. 1 and 2, in some preferred embodiments, the construction bin system further comprises a structural frame 500, wherein the structural frame 500 is symmetrically arranged by a frame base, the frame base comprises a first frame body 510, a second frame body 520 and a third frame body 530, the first frame body 510, the second frame body 520 and the third frame body 530 are vertically arranged, the first frame body 510, the second frame body 520 and the third frame body 530 are connected end to end, a step is formed at the second frame body 520, a mounting frame 540 for mounting the first driving assembly 230 and the first positioning member 220 is arranged at the bottom of the step, a space for accommodating the first driving assembly 230 and the first positioning member 220 is formed between the bottom of the step and the third frame body 530, and the second driving assembly 330 is connected with the first frame body 510.

As shown in fig. 1, specifically to this embodiment, the number of the working stations 700 is three, that is, one printing station 710a and two cleaning stations 710b, the two cleaning stations 710b are respectively disposed at two sides of the printing station 710a, the number of the building bins 600 is two, and the two building bins 600 are switched back and forth between the three working stations 700, so as to ensure that one building bin 600 performs printing at the printing station 710a and the other building bin 600 performs cleaning at the cleaning station 710b or is in a ready state.

Specifically, in the present embodiment, the primary positioning assembly 100 is provided with two sets, the two sets of sensing pieces 110 are respectively disposed at two ends of the building bin 600, in the reciprocating switching moving process, along the moving direction of the building bin 600, the sensing piece 110 at the opposite front end is the object of working in the moving process, and the corresponding first sensor 120 and the second sensor 130 perform detection work in the moving process. Specifically, the two sets of initial positioning assemblies 100 are a left-directional initial positioning assembly and a right-directional initial positioning assembly, and correspondingly, the sensing pads 110 of the two sets of initial positioning assemblies 100 are a left-directional sensing pad 110a and a right-directional sensing pad 110b, the first sensor 120 is a left-directional first sensor 120a and a right-directional first sensor 120b, and the second sensor 130 is a left-directional second sensor 130a and a right-directional second sensor 130b, respectively, as shown in fig. 7, when the building bin 600 moves along the direction L1, the left-directional first sensor 120a and the left-directional second sensor 130a detect the left-directional sensing pad 110a, and when the building bin 600 moves along the direction L2, the right-directional first sensor 120b and the right-directional second sensor 130b detect the right-directional sensing pad 110 b. Specifically, two sets of primary positioning assemblies 100 can be arranged in a staggered manner in the vertical position, so that mutual interference can be avoided. Specifically, the controller may determine the moving direction of the constructed bin 600, and then control the corresponding first sensor 120 and second sensor 130 to operate. Thus, the construction chamber can be switched in a bidirectional reciprocating cycle.

According to the construction bin system for the large-scale metal 3D printing equipment, the lower driving cylinder 620 and the upper forming cylinder 610 are respectively positioned through the first positioning mechanism 200 and the second positioning mechanism 300, the position deviation of the forming cylinder 610 relative to the driving cylinder 620 caused by factors such as shaking or inertial movement is eliminated, the accurate position positioning of the construction bin 600 on the printing station 710a is ensured, the upper part (namely the forming cylinder 610) of the construction bin 600 can be accurately butted with the printing bin of the printing equipment without error, the preliminary judgment is carried out through the preliminary positioning assembly 100 to stop the movement of the construction bin, then the first positioning mechanism 200 positions the driving cylinder 620, finally the second positioning mechanism 300 carries out positioning logic for positioning the forming cylinder 610, the error rate of positioning is reduced, the situation that the upper forming cylinder 610 is positioned firstly and the lower driving cylinder 620 can move relatively is avoided, the final positioning accuracy is affected, so that the large-size building bin 600 can realize omnibearing and accurate positioning relative to the corresponding working station 700, and the forming cylinder 610 at the upper part can be accurately connected with the printing bin above the building bin 600. By providing the vertical positioning function for the construction bin 600 and providing the horizontal positioning function for the construction bin 600, the construction bin 600 is accurately positioned in the two-dimensional direction. Through setting up first constant head tank 210 into V type groove, but first locating piece 220 roll setting can eliminate the positional deviation who constructs storehouse 600 initial positioning, does benefit to and realizes accurate location. Through adopting I-shaped gyro wheel 421 and setting up leading wheel 423 for between slip table 420 and the guide rail 410, the relative displacement control that probably takes place on the horizontal direction of perpendicular to found storehouse 600 moving direction is at the minimum, improves the precision of constructing storehouse 600 when preliminary location, does benefit to the accurate location of constructing storehouse 600.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. A build bin system for large metal 3D printing equipment, comprising at least two work stations (700) and at least two build bins (600), at least two of the build bins (600) are cyclically switched between at least two of the work stations (700), the build bin (600) comprises a forming cylinder (610) and a driving cylinder (620) which are separately arranged, the driving cylinder (620) is positioned below the forming cylinder (610), the system is characterized by comprising:

positioning mechanism, at least one said work station (700) with construct be equipped with between storehouse (600) said positioning mechanism, positioning mechanism includes:

the initial positioning assembly (100) is arranged between the corresponding working station (700) and the construction bin (600), and the initial positioning assembly (100) is used for detecting whether the construction bin (600) reaches the corresponding working station (700);

the first positioning mechanism (200) and the second positioning mechanism (300), the first positioning mechanism (200) is arranged between the corresponding working station (700) and the driving cylinder (620), and the second positioning mechanism (300) is arranged between the corresponding working station (700) and the forming cylinder (610); the first positioning mechanism (200) is used for positioning the driving cylinder (620) at the lower part of the construction bin (600), and the second positioning mechanism (300) is used for positioning the forming cylinder (610) at the upper part of the construction bin (600) so as to fix the separately arranged construction bin (600) relative to the corresponding working station (700); the controller is used for controlling the building bin (600) to stop moving when the primary positioning assembly (100) detects that the building bin (600) reaches the corresponding working station (700), controlling the first positioning mechanism (200) to act so as to position the driving cylinder (620), and controlling the second positioning mechanism (300) to act so as to position the forming cylinder (610) after the first positioning mechanism (200) positions the driving cylinder (620).

2. The build bin system for large metal 3D printing apparatuses according to claim 1, wherein the first positioning mechanism (200) acts in a vertical direction to position the driving cylinder (620) and the second positioning mechanism (300) acts in a horizontal direction to position the forming cylinder (610).

3. The build bin system for large-scale metal 3D printing equipment according to claim 2, wherein the second positioning mechanisms (300) are provided in two sets, and the two sets of second positioning mechanisms (300) are respectively provided at two sides of the build bin (600) along the moving direction of the build bin (600).

4. The build bin system for large-scale metal 3D printing equipment according to claim 2, wherein the first positioning mechanism (200) comprises a first positioning groove (210), a first positioning member (220) and a first driving assembly (230), the first positioning groove (210) is fixedly arranged relative to the driving cylinder (620) and is provided with an upward notch, the first positioning member (220) is arranged on the corresponding working station (700), and the first driving assembly (230) is connected with the first positioning member (220) to drive the first positioning member (220) to reciprocate vertically to enter or leave the first positioning groove (210).

5. The build bin system for large metal 3D printing apparatuses according to claim 4, wherein the first positioning groove (210) is a V-groove and the first positioning member (220) is rollably arranged.

6. The building bin system for large-scale metal 3D printing equipment according to claim 1, wherein the primary positioning assembly (100) comprises a sensor and a sensing piece (110), the sensing piece (110) is fixedly arranged relative to the building bin (600), the sensor is arranged on the corresponding work station (700), and the sensor is used for detecting the sensing piece (110).

7. The build bin system for large scale metal 3D printing apparatuses according to claim 6, wherein the sensors comprise a first sensor (120) and a second sensor (130), the first sensor (120) is disposed at a front end of the second sensor (130) in a direction in which the build bin (600) enters the corresponding work station (700), and the position between the sensing sheet (110) and the first sensor (120) corresponds after the build bin (600) is positioned at the corresponding work station (700).

8. The build bin system for large metal 3D printing devices according to claim 1, wherein the first positioning mechanism (200) is provided with a pressure sensor for detecting the pressure from a build bin (600) to which the first positioning mechanism (200) is subjected.

9. The build bin system for large-scale metal 3D printing equipment according to claim 2, wherein the second positioning mechanism (300) comprises a second positioning slot (310), a second positioning member (320) and a second driving assembly (330), the second positioning slot (310) is fixedly arranged relative to the forming cylinder (610) and the slot opening is horizontally oriented, the second positioning member (320) is arranged on the corresponding working station (700), and the second driving assembly (330) is connected with the second positioning member (320) to drive the second positioning member (320) to perform horizontal reciprocating motion to enter or leave the second positioning slot (310).

10. The building bin system for the large-scale metal 3D printing equipment according to claim 1, further comprising a guide rail (410) and a sliding table (420) which are connected in a sliding manner, wherein the at least two work stations (700) are connected through the guide rail (410), the building bin (600) is connected with the sliding table (420), the sliding table (420) is provided with a positioning pin (425), the building bin (600) is provided with a corresponding positioning hole, and the positioning pin (425) is connected with the positioning hole.