Doubling laser printing system

Abstract

The utility model relates to the technical field of additive manufacturing, and particularly discloses a doubling laser printing system which comprises a printing station, a moving module and a powder cleaning station, the printing station comprises a forming module and a lifting module, the forming module comprises a cylinder body and a piston, the piston is movably arranged in the cylinder body, and the lifting module is arranged in the cylinder body. The piston is detachably connected with the cylinder body, and the lifting module is detachably connected with the piston; the powder cleaning station is arranged on one side of the printing station, and a limiting part is arranged on the powder cleaning station so that the powder cleaning station can be detachably connected with the piston; the moving module is arranged between the powder cleaning station and the printing station, and a clamping assembly is arranged on the moving module; the powder cleaning device can save manpower and improve the powder cleaning efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of additive manufacturing, and more specifically to a parallel-line laser printing system. Background Art

[0002] Additive manufacturing technology is a technology that uses a gradual accumulation of materials to manufacture solid parts. There are existing additive manufacturing equipment, among which selective laser melting equipment is taken as an example. The basic process of selective laser melting technology is: a thin layer of metal powder is spread on the substrate, and the cross-section of the component is scanned with a laser to melt or fuse the metal particles together to complete the printing of the current layer of data. After the previous layer is printed, the substrate is moved down by one layer through the lifting frame, and the scraper moves across the platform to spread a new layer of metal powder and perform a new layer of laser cross-section melting. After several layers of scanning and superposition, this process is repeated layer by layer until the printing is completed.

[0003] After printing is completed, there is still a large amount of metal powder inside the cylinder, which needs to be removed. During the cleaning process, the cylinder and piston need to be manually moved to the powder cleaning station and the cylinder and piston need to be dismantled for powder cleaning. This process requires a lot of manpower and poses safety hazards. The production efficiency is low and it is difficult to meet production needs. Utility Model Content

[0004] The utility model provides a parallel line laser printing system to solve the problems existing in the above background technology.

[0005] The technical solution adopted by the utility model is:

[0006] A parallel laser printing system comprises a printing station, a moving module and a powder cleaning station, wherein the printing station comprises a forming module and a lifting module, wherein the forming module comprises a cylinder body and a piston, wherein the piston is movably arranged in the cylinder body, the piston is detachably connected to the cylinder body, and the lifting module is detachably connected to the piston; the powder cleaning station is arranged at one side of the printing station, and a limiting portion is arranged on the powder cleaning station so that the powder cleaning station and the piston are detachably connected; the moving module is arranged between the powder cleaning station and the printing station, and a clamping assembly is arranged on the moving module; after printing is completed, the lifting module is separated from the piston, the piston is fixed to the cylinder body, the moving module drives the forming module to move to the powder cleaning station through the clamping assembly, the piston is connected to the limiting portion, and the cylinder body is separated from the piston.

[0007] In some embodiments of the present application, a first locking member is provided on the cylinder body, and the first locking member can be extended and retracted relative to the interior of the cylinder body to limit the position of the piston.

[0008] In some embodiments of the present application, a rotating member is further included, the rotating member is disposed on the cylinder body, the first locking member is connected to the rotating member, and the first locking member is extended and retracted relative to the interior of the cylinder body through the rotating member.

[0009] In some embodiments of the present application, the limiting portion is a positioning chuck, and a fixing rod is provided on a side of the piston facing the positioning chuck.

[0010] In some embodiments of the present application, a loading station is further included, on which an extraction frame is disposed. The interior of the extraction frame is hollow, and another piston is disposed inside the extraction frame.

[0011] In some embodiments of the present application, a second locking member is provided on the extraction frame, and the second locking member is telescoped relative to the interior of the extraction frame to limit the position of the other piston.

[0012] In some embodiments of the present application, an assembly station is further included, on which a first adjusting rod is provided; the clamping assembly moves the extraction frame to the assembly station, and the first adjusting rod abuts against the second locking member to flip the second locking member to separate the other piston from the extraction frame.

[0013] In some embodiments of the present application, an elastic member is further included, and the first adjusting rod is elastically connected to the elastic member. When the first adjusting rod abuts against the second locking member, the elastic member contracts to generate a restoring force on the first adjusting rod.

[0014] In some embodiments of the present application, a second adjusting rod is further provided on one side of the first adjusting rod; the clamping assembly moves the cylinder body to the assembly station, the cylinder body passes through the other piston, and the first locking piece on the cylinder body abuts against the second adjusting rod, causing the first locking piece to flip to fix the other piston.

[0015] In some embodiments of the present application, a cutting station is further included, and the clamping assembly moves the piston from the powder cleaning station to the cutting station.

[0016] Compared with the prior art, the utility model is provided with a moving module, a printing module and a powder cleaning module, and the combination of the cylinder body and the piston can be moved from the printing module to the powder cleaning module for powder cleaning, wherein, by arranging the lifting module and the piston as a detachable connection, and the piston and the cylinder body as a detachable connection, the molding module and the lifting module can be separated, and when the molding module moves to the powder cleaning module, under the action of the limiting part, the piston is fixed, the piston and the cylinder body are separated, and the piston is cleaned. This process has a high degree of automation, saves manpower, and improves production efficiency; and by fixing the cylinder body and the piston, and separating the lifting module and the molding module, the printing position of the printing station can be vacated, and a new combination of the cylinder body and the piston can be installed to restart printing, thereby realizing secondary printing and improving printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the parallel laser printing system in the embodiment of the present application.

[0018] Figure 2 It is a structural schematic diagram of the printing station in the embodiment of the present application.

[0019] Figure 3 It is a cross-sectional view of the molding module in the embodiment of the present application.

[0020] Figure 4 It is a schematic diagram of the structure of the piston in the embodiment of the present application.

[0021] Figure 5 It is a schematic diagram of the structure of the extraction frame in the embodiment of the present application.

[0022] Figure 6 It is a structural schematic diagram of an assembly station in an embodiment of the present application.

[0023] Description of reference numerals:

[0024] 1-printing station; 110-forming module; 111-piston; 111a-fixing rod; 112-cylinder body; 112a-first locking member; 120-lifting module;

[0025] 2-mobile module; 210-clamping assembly;

[0026] 3-Powder cleaning station;

[0027] 4-loading station; 410-extraction frame; 411-second locking member; 420-another piston;

[0028] 5-assembly station; 510-first adjustment rod; 520-second adjustment rod. DETAILED DESCRIPTION

[0029] Example 1

[0030] This embodiment provides a parallel laser printing system. Figure 1-4 As shown, a parallel line laser printing system includes a printing station 1, a moving module 2 and a powder cleaning station 3. The printing station 1 includes a forming module 110 and a lifting module 120. The forming module 110 includes a cylinder 112 and a piston 111. The piston 111 is movably arranged in the cylinder 112. The piston 111 is detachably connected to the cylinder 112, and the lifting module 120 is detachably connected to the piston 111. The powder cleaning station 3 is arranged on one side of the printing station 1. A limiting portion is arranged on the powder cleaning station 3 so that the powder cleaning station 3 and the piston 111 are detachably connected. The moving module 2 is arranged between the powder cleaning station 3 and the printing station 1, and a clamping assembly 210 is arranged on the moving module 2. After printing is completed, the lifting module 120 is separated from the piston 111, and the piston 111 is fixed to the cylinder 112. The moving module 2 drives the forming module 110 to move to the powder cleaning station 3 through the clamping assembly 210. The piston 111 is connected to the limiting portion, and the cylinder 112 is separated from the piston 111.

[0031] Specifically, the printing station 1 is used to print the workpiece, the piston 111 is movably arranged inside the cylinder 112, and its bottom is detachably connected to the lifting module 120. The lifting module 120 is used to drive the piston 111 to move up and down in the cylinder 112. The lifting module 120 can be a driving device such as a driving motor, and the present application is not limited here. Among them, the printing work is completed on the piston 111. After the printing is completed, the piston 111 and the workpiece are integrated. A guide rail can also be set on the printing station 1, and the molding module 110 is movably connected to the guide rail and slides along the guide rail, which can make the transportation process more convenient. The piston 111 is detachably connected to the cylinder 112, and the cylinder 112 can fix the piston 111 so that it no longer moves. The lifting module 120 is detachably connected to the piston 111. When the printing is completed, the lifting module 120 can be separated from the piston 111. Its specific connection method can be a card connection, a key connection, etc. In one embodiment, a chuck can be provided on the side of the lifting module 120 facing the piston 111, and a staple can be installed on the side of the piston 111 facing the lifting module 120. The chuck and the staple can be used to make the lifting module 120 and the piston 111 detachable. The chuck and the staple can also be controlled by an external device, thereby improving the automation level of the equipment and improving production efficiency.

[0032] The powder cleaning station 3 is used to clean the workpiece. A limiting portion is provided on the top of the powder cleaning station 3. The limiting portion is adapted to the piston 111 and is used to limit the piston 111. A mobile module 2 is provided between the powder cleaning station 3 and the printing station 1. The mobile module 2 includes a gantry. A transmission device, such as a gear transmission, a screw transmission, etc., is provided on the gantry. It is not limited here. It can move in the x-axis, y-axis, and z-axis directions. A clamping assembly 210 is connected to the high end of the transmission device. The clamping assembly 210 can be a mechanical arm, a clamping claw, etc. The mobile module 2 moves the cylinder body 112, etc. through the clamping assembly 210.

[0033] During use, the molding module 110 prints on the printing station 1. After printing is completed, the lifting module 120 is separated from the piston 111, and the cylinder body 112 fixes the piston 111. At this time, the moving module 2 moves the molding module 110 to the powder cleaning station 3 through the clamping assembly 210. The powder cleaning station 3 is connected to the piston 111 through the limiting part. At this time, the cylinder body 112 is separated from the piston 111, the clamping assembly 210 rises, and the cylinder body 112 is moved to the next station.

[0034] A moving module 2, a printing module and a powder cleaning module are provided, and the combination of the cylinder body 112 and the piston 111 can be moved from the printing module to the powder cleaning module for powder cleaning, wherein, by setting the lifting module 120 and the piston 111 to be detachably connected, and the piston 111 and the cylinder body 112 to be detachably connected, the molding module 110 and the lifting module 120 can be separated, and when the molding module 110 moves to the powder cleaning module, under the action of the limiting part, the piston 111 is fixed, the piston 111 and the cylinder body 112 are separated, and the piston 111 is cleaned of powder. This process has a high degree of automation, saves manpower, and improves production efficiency; and by fixing the cylinder body 112 and the piston 111, and separating the lifting module 120 and the molding module 110, the printing position of the printing station 1 can be vacated, and a new combination of the cylinder body 112 and the piston 111 can be installed to restart printing, thereby achieving secondary printing and improving printing efficiency.

[0035] Furthermore, the cylinder 112 is provided with a first locking member 112a, which can be extended relative to the inside of the cylinder 112 to limit the position of the piston 111. The first locking member 112a can be a rod-shaped or block-shaped locking tongue, and the first locking member extends into the inside of the cylinder 112 to limit the position of the piston 111, so that the piston 111 is separated from the lifting module 120 and fixed to the cylinder 112.

[0036] In some embodiments of the present application, a rotating member is further included, the rotating member is arranged on the cylinder body 112, the first locking member 112a is connected to the rotating member, and the first locking member 112a is extended and retracted relative to the inside of the cylinder body 112 through the rotating member. Specifically, the locking member is a locking tongue, and the rotating member is a pin shaft. A plurality of pin shafts are arranged on the outside of the cylinder body 112, and a locking tongue is arranged on the pin shaft. The locking tongue can rotate under the action of the pin shaft and extend into the inside of the cylinder body 112 to limit the piston 111. The self-weight of the locking tongue is outside. When the moving module 2 moves to the powder cleaning station 3 and drives the cylinder body 112 to descend, the piston 111 is connected to the limiting part, so that the piston 111 and the cylinder body 112 cannot be locked and separated. When the separation is completed, the locking tongue will be placed vertically and retracted into the cylinder wall. This separation process does not require external program control and is simple to operate.

[0037] Furthermore, the limiting part is a positioning chuck, and a fixing rod 111a is provided on the side of the piston 111 facing the positioning chuck. The positioning rod is a clamping pin, and a plurality of clamping pins are provided at the bottom of the piston 111 to be clamped with the positioning chuck.

[0038] Example 2

[0039] Example 2 is similar to Example 1, except that Figure 1 , Figure 5 , Figure 6 As shown, further, it also includes a loading station 4, on which an extraction frame 410 is provided, the extraction frame 410 is hollow inside, and another piston 420 is provided inside the extraction frame 410. The loading station 4 is an AGV trolley, and multiple extraction frames 410 are provided on the loading station 4, and a new piston, that is, another piston 420, is provided inside the extraction frame 410 for secondary printing. The clamping assembly 210 moves the new piston by lifting the extraction frame 410, sets the new piston on the printing station 1, and sets the cylinder body 112 into the new piston. After assembly, printing is performed.

[0040] Preferably, the extraction frame 410 is provided with a second locking member 411, which is telescopic relative to the inside of the extraction frame 410 to limit the position of the other piston 420. The second locking member 411 is a lock tongue, and a pin is connected to the lock tongue, and the lock tongue rotates through the pin. It can also include a mounting block, which is arranged on one side of the lock tongue, and can limit the lock tongue to prevent it from excessive rotation. The center of the lock tongue is inside the extraction frame 410, and the lock tongue is horizontally arranged inside the extraction frame 410, so as to limit the piston and make the piston relatively fixed to the extraction frame 410.

[0041] In some embodiments, an assembly station 5 is further included, and a first adjusting rod 510 is arranged on the assembly station 5; the clamping assembly 210 moves the extraction frame 410 to the assembly station 5, and the first adjusting rod 510 abuts against the second locking member 411, so that the second locking member 411 is turned over to separate the other piston 420 from the extraction frame 410. By setting the assembly station 5, the piston and the cylinder body 112 can be automatically assembled, the degree of automation of the equipment is improved, and the production efficiency is improved. A plurality of first adjusting rods 510 are vertically arranged on the assembly station 5, and the number thereof is consistent with the number of locking tongues on the extraction frame 410. A chuck is also arranged on the assembly station 5. When the clamping assembly 210 drives the extraction frame 410 to the assembly station 5, the extraction frame 410 is driven to descend, the first adjusting rod 510 abuts against the locking tongue, and the first adjusting rod 510 supports the locking tongue and rotates upward, the locking tongue reaches a vertical state, and the extraction frame 410 is separated from the piston.

[0042] Furthermore, it also includes an elastic member, the first adjustment rod 510 is elastically connected to the elastic member, when the first adjustment rod 510 abuts against the second locking member 411, the elastic member contracts to generate a reset force on the first adjustment rod 510, wherein the elastic member is a spring, and the spring is arranged at the bottom of the adjustment rod, at this time, the height of the first adjustment rod 510 is higher than the length of the staple, when the first adjustment rod 510 abuts against the lock tongue, the lock tongue flips upward, and at the same time drives the first adjustment member to move downward, until the lock tongue flips to a vertical state, the staple of the piston abuts against the chuck, and the separation is completed. By setting the elastic member, the separation process can be made more stable and reliable, preventing the piston from falling after separation from the extraction frame 410, and the elastic member can also generate a reset force, and after the separation is completed, the spring drives the first adjustment member to reset.

[0043] In some embodiments, a second adjusting rod 520 is further provided on one side of the first adjusting rod 510; the clamping assembly 210 moves the cylinder 112 to the assembly station 5, the cylinder 112 passes through another piston 420, and the first locking member 112a on the cylinder 112 abuts against the second adjusting rod 520, causing the first locking member 112a to flip over to fix the other piston 420. The second adjusting rod 520 is provided on the outside of the first adjusting rod 510, and is used to fix the cylinder 112 and the piston. The lifting device carries the cylinder 112 to the assembly station 5, and when moving downward, the first locking member 112a on the cylinder 112 abuts against the second adjusting rod 520, causing it to flip over, thereby fixing the piston. After the fixing is completed, the chuck is released, and the assembly is completed. Driven by the clamping assembly 210, the new assembly molding module 110 is placed on the printing module for printing.

[0044] Example 3

[0045] Example 3 is similar to Example 1, except that it further includes a cutting station for cutting the piston. After the powder is cleaned, the workpiece and the piston are moved as a whole to the cutting station through the moving module 2, and the piston is separated from the workpiece to complete the printing process.

[0046] During use, after the workpiece is printed, the piston continues to descend. When it moves to a certain position, the lifting module 120 separates from the piston, and the cylinder body 112 fixes the piston. Then, the cylinder body 112 and the piston are moved to the top of the powder cleaning platform through the moving module 2, and then the cylinder body 112 and the piston are lowered. When the clamping assembly 210 lowers the cylinder body 112 (2) moving assembly to a certain distance, the pin on the piston is inserted into the positioning chuck of the powder cleaning platform for locking. At this time, the moving assembly continues to descend, and the locking tongue of the cylinder body 112 separates from the piston, making it impossible to lock the piston and the cylinder body 112 and then separate. At this point, the cylinder body 112 and the piston are separated. At the same time, since the center of gravity of the lock tongue is outside, the lock tongue will be placed vertically and retracted into the cylinder wall. After the cylinder body 112 and the piston are separated, the clamping assembly 210 will lift the cylinder body 112 from the powder cleaning platform and move it to one side of the placement equipment. At this time, the extraction frame 410 and the new piston are stored on the AGV base of the loading station 4, and the lock tongue in the extraction frame 410 is in a horizontal state, and the piston is in a locked state. The clamping assembly 210 grabs the extraction frame 410 and moves the extraction frame 410 and the new piston to the assembly station 5. Due to the gravity of the piston, The lock tongue will compress the first adjustment rod 510 and the spring. When the extraction frame 410 drops to a certain position, the lock tongue is separated from the piston. Under the elastic force of the first adjustment rod 510, the lock tongue is in a vertical state. At this time, the extraction frame 410 is raised again to complete the separation of the extraction frame 410 and the piston. The lifting mechanism transports the extraction frame 410 to the AGV base, and then the clamping assembly 210 transports the cylinder body 112 to the assembly station 5. Under the action of the second adjustment rod 520 at the assembly station 5, the lock tongue in the cylinder body 112 is in a horizontal state, locking the new piston. At this point, the cylinder body 112 and the new The piston reassembles into a new cylinder 112 moving assembly, and the clamping assembly 210 moves the new cylinder 112 moving assembly to the printing station 1 to realize the secondary printing of the equipment; the powder cleaning platform performs powder cleaning operations on the workpiece through a specific program. After the powder cleaning is completed, the clamping assembly 210 re-grasps the extraction frame 410, and then takes out the piston and workpiece in the powder cleaning platform through the extraction frame 410, moves them to the AGV base, and then moves the AGV base to the wire cutting process through AGV and other transportation devices. After completing the wire cutting process, the AGV base, the extraction frame 410 frame and the piston are transported to the transportation area station.

[0047] By improving the cylinder body 112 and the lifting module 120, the piston can be clamped and separated in different states. The mobile module 2 is arranged in the workshop, and the corresponding cylinder body 112, lifting device and piston extraction device are designed to quickly replace the piston. When cleaning the powder, the new piston and cylinder body 112 can form a new set and be installed in the printing station 1. When cleaning the powder, it will not affect the secondary printing, so that the parallel operation of the printing equipment can be realized.

[0048] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0049] The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary explanations and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0050] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, the specific relationship represented can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, they can understand the specific meanings of the above terms in this application according to specific circumstances.

[0051] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A parallel laser printing system, characterized in that: It comprises a printing station (1), a moving module (2) and a powder cleaning station (3); The printing station (1) comprises a molding module (110) and a lifting module (120), the molding module (110) comprises a cylinder body (112) and a piston (111), the piston (111) is movably arranged in the cylinder body (112), the piston (111) is detachably connected to the cylinder body (112), and the lifting module (120) is detachably connected to the piston (111); The powder cleaning station (3) is arranged on one side of the printing station (1), and a limiting portion is arranged on the powder cleaning station (3); The movable module (2) is arranged between the powder cleaning station (3) and the printing station (1), and a clamping component (210) is arranged on the movable module (2); After printing is completed, the lifting module (120) is separated from the piston (111), the moving module (2) drives the forming module (110) to move to the powder cleaning station (3) through the clamping assembly (210), and the piston (111) is separated from the cylinder body (112) through the limiting portion.

2. The parallel laser printing system according to claim 1, characterized in that: The cylinder body (112) is provided with a first locking member (112a), and the first locking member (112a) can be extended and retracted relative to the inside of the cylinder body (112) to limit the position of the piston (111).

3. The parallel laser printing system according to claim 2, characterized in that: It also includes a rotating member, which is arranged on the cylinder body (112); the first locking member (112a) is connected to the rotating member; and the first locking member (112a) is extended and retracted relative to the inside of the cylinder body (112) through the rotating member.

4. The parallel laser printing system according to claim 1, characterized in that: The limiting portion is a positioning chuck, and a fixing rod (111a) is provided on a surface of the piston (111) facing the positioning chuck.

5. The parallel laser printing system according to claim 2, characterized in that: It also comprises a loading station (4), on which an extraction frame (410) is arranged, the extraction frame (410) is hollow inside, and another piston (420) is arranged inside the extraction frame (410).

6. The parallel laser printing system according to claim 5, characterized in that: The extraction frame (410) is provided with a second locking member (411), and the second locking member (411) is telescoped relative to the interior of the extraction frame (410) to limit the position of the other piston (420).

7. The parallel laser printing system according to claim 6, characterized in that: It also includes an assembly station (5), on which a first adjustment rod (510) is provided; The clamping assembly (210) moves the extraction frame (410) to the assembly station (5), and the first adjusting rod (510) abuts against the second locking member (411), causing the second locking member (411) to flip over, so as to separate the other piston (420) from the extraction frame (410).

8. The parallel laser printing system according to claim 7, characterized in that: It also includes an elastic member, the first adjusting rod (510) being elastically connected to the elastic member, and when the first adjusting rod (510) abuts against the second locking member (411), the elastic member contracts to generate a restoring force on the first adjusting rod (510).

9. The parallel laser printing system according to claim 7, characterized in that: A second adjusting rod (520) is also provided on one side of the first adjusting rod (510); The clamping assembly (210) moves the cylinder body (112) to the assembly station (5), the cylinder body (112) passes through the other piston (420), and the first locking member (112a) on the cylinder body (112) abuts against the second adjusting rod (520), so that the first locking member (112a) is flipped to fix the other piston (420).

10. The parallel laser printing system according to claim 1, characterized in that: Also included is a cutting station for cutting the piston (111).

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