Pick-up cabin for additive manufacturing

Abstract

The utility model belongs to the field of additive manufacturing, and relates to a part taking cabin for additive manufacturing, which comprises a rotating shaft component, a rotating shaft driving part, a door plate and a part taking window arranged on a top plate of a forming chamber, the door plate is arranged on the pick-up window; one end of the rotating shaft driving piece is arranged on the forming chamber top plate, and the other end is connected with the rotating shaft assembly and drives the door plate to open or close the piece taking window through the rotating shaft assembly. The workpiece taking cabin for additive manufacturing is convenient to operate and capable of effectively improving workpiece taking efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of additive manufacturing and relates to a pickup cabin, in particular to a pickup cabin for additive manufacturing. Background Art

[0002] SLM is a rapid laser melting forming technology based on digital model files. The two-dimensional slice data of the parts is generated by computer-aided design and imported into the forming equipment. The laser light is collimated and expanded, and then the optical path is turned to the field mirror through the scanning galvanometer, and finally focused on the forming format. The metal powder laid on the forming table is sintered layer by layer to realize part forming.

[0003] Processing large-size parts requires large-format forming equipment. When conventional large equipment completes part forming and takes out parts, it usually moves the parts to an independent part removal cabin device configured nearby and then takes them out. This often requires complex mechanical structures and control processes, which not only increases the equipment cost, but also causes inconvenience in operation. Utility Model Content

[0004] In order to solve the above-mentioned technical problems existing in the background technology, the utility model provides a pickup cabin for additive manufacturing which is easy to operate and can effectively improve the efficiency of picking up.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pickup cabin for additive manufacturing, characterized in that: the pickup cabin for additive manufacturing includes a rotating shaft assembly, a rotating shaft driving component, a door panel and a pickup window arranged on the top plate of a forming chamber; the door panel is arranged on the pickup window; one end of the rotating shaft driving component is arranged on the top plate of the forming chamber, and the other end is connected to the rotating shaft assembly and drives the door panel to open or close the pickup window through the rotating shaft assembly.

[0007] The above-mentioned rotating shaft assembly includes a rotating shaft and at least one first long rod; one end of the first long rod is connected to the door panel, and the other end is connected to the rotating shaft; the rotating shaft driving member is connected to the rotating shaft and drives the door panel to open or close the picking window through the rotating shaft and the first long rod.

[0008] The shaft drive member is a motor drive member, a hydraulic drive member or a manual drive member.

[0009] When the shaft driving member is a motor driving member, the motor driving member includes a motor, a reducer and a coupling; the motor is connected to the shaft through the reducer and the coupling and drives the shaft to rotate around the axial direction of the shaft; the motor is fixedly arranged on the top plate of the forming chamber;

[0010] When the rotating shaft driving member is a hydraulic driving member, the hydraulic driving member includes an articulated seat and a hydraulic push rod; the rotating shaft assembly also includes a push rod connecting rod and an articulated shaft; the articulated seat is fixedly arranged on the top plate of the forming chamber; one end of the hydraulic push rod is articulated with the articulated seat, and the other end is articulated with the articulated shaft; the articulated shaft is connected to the rotating shaft through the push rod connecting rod and drives the rotating shaft to rotate around the axial direction of the rotating shaft;

[0011] When the rotating shaft driving member is a manual driving member, the manual driving member includes a handle and a hinge; the door panel is movably arranged on the picking window through the hinge; and the handle is arranged on the door panel.

[0012] When the above-mentioned rotating shaft driving component is a hydraulic driving component, the hydraulic driving component is arranged at the end or the middle of the rotating shaft.

[0013] The above-mentioned pickup cabin for additive manufacturing also includes a fixed connecting piece; the rotating shaft assembly is arranged on the door panel through the fixed connecting piece.

[0014] The above-mentioned fixed connecting member includes a connecting seat, a first rotating pin, a connecting rod assembly and a second rotating pin; the connecting seat is fixedly set on the door panel; the rotating shaft assembly is set on the connecting seat through the connecting rod assembly; a first rotating pin is set between the rotating shaft assembly and the connecting rod assembly; a second rotating pin is set between the connecting rod assembly and the connecting seat.

[0015] The connecting rod assembly comprises a threaded rod and a screw hole rod connected in sequence from top to bottom; radial through holes are provided at the ends of the threaded rod and the screw hole rod; the first rotating pin and the second rotating pin respectively pass through the radial through holes.

[0016] The inner contour of the pickup window is provided with a sealing groove, and a sealing ring is embedded in the sealing groove.

[0017] The door panel is transparent; the pickup cabin for additive manufacturing also includes a door frame arranged on the outer contour of the door panel; the door frame seals the pickup window through a sealing ring.

[0018] The advantages of the utility model are:

[0019] The utility model provides a pickup cabin for additive manufacturing, including a shaft assembly, a shaft driving member, a door panel, and a pickup window arranged on the top plate of the forming chamber; the door panel is arranged on the pickup window; one end of the shaft driving member is arranged on the top plate of the forming chamber, and the other end is connected to the shaft assembly and drives the door panel to open or close the pickup window through the shaft assembly. The utility model realizes large-format part printing by moving the optical flight unit to meet the processing requirements of large-size parts. A pickup window is arranged on the top of the forming chamber, and the pickup window can be opened to complete the pickup; at the same time, the pickup can be completed without an independent pickup cabin, which can reduce the cost of additive manufacturing equipment and improve the efficiency of the pickup of additive manufacturing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side view structural schematic diagram of the additive manufacturing pickup cabin provided by the utility model in the first embodiment;

[0021] Figure 2 It is a schematic diagram of the overall structure of the pickup cabin for additive manufacturing provided by the utility model in the first embodiment;

[0022] Figure 3 It is a structural schematic diagram of the additive manufacturing pickup cabin provided by the utility model in the closed state in the first embodiment;

[0023] Figure 4 It is a structural schematic diagram of the optical flight unit adopted by the utility model;

[0024] Figure 5 It is a structural schematic diagram of the connecting rod assembly used in the first embodiment of the pickup cabin for additive manufacturing provided by the utility model;

[0025] Figure 6 It is a structural schematic diagram of the rotating shaft assembly used in the first embodiment of the pickup cabin for additive manufacturing provided by the utility model;

[0026] Figure 7 It is a structural schematic diagram of the rotating shaft assembly used in the second embodiment of the pickup cabin for additive manufacturing provided by the utility model;

[0027] Figure 8 It is a schematic diagram of the overall structure of the pickup cabin for additive manufacturing provided by the utility model in the second embodiment;

[0028] Fig. 9 It is a structural schematic diagram of the rotating shaft assembly used in the third embodiment of the pickup cabin for additive manufacturing provided by the utility model;

[0029] Fig.10 It is a schematic diagram of the overall structure of the pickup cabin for additive manufacturing provided by the utility model in the third embodiment;

[0030] Fig.11 It is a schematic diagram of the overall structure of the pickup cabin for additive manufacturing provided by the utility model in the fourth embodiment;

[0031] Fig.12 yes Fig.11 Schematic diagram of the opening structure;

[0032] in:

[0033] 1-forming chamber top plate; 2-door frame; 3-door plate; 4-sealing ring; 5-optical flight unit; 51-first galvanometer; 52-second galvanometer; 53-first beam expander; 54-second beam expander; 55-optical mounting plate; 56-first field mirror; 57-second field mirror; 6-rotating shaft assembly; 61-first long rod; 62-second long rod; 63-rotating shaft; 64-push rod connecting rod; 65-hinge shaft; 7-hinge; 8-bearing with seat; 9-connecting seat; 10-first rotating pin; 11-connecting rod assembly; 111-threaded rod; 112-screw hole rod; 12-second rotating pin; 13-hinge seat; 14-hydraulic push rod; 15-motor; 16-reducer; 17-coupling; 18-handle; 19-sealing groove. DETAILED DESCRIPTION

[0034] The utility model provides a pickup cabin for additive manufacturing, including a shaft assembly 6, a shaft driving member, a door panel 3, and a pickup window arranged on a top plate 1 of a forming chamber; the door panel 3 is arranged on the pickup window; one end of the shaft driving member is arranged on the top plate 1 of the forming chamber, and the other end is connected to the shaft assembly 6 and drives the door panel 3 to open or close the pickup window through the shaft assembly 6. The door panel 3 is transparent and can transmit the wavelength of the forming laser; the inner contour of the pickup window is provided with a sealing groove 19, a sealing ring 4 is embedded in the sealing groove 19, and a door frame 2 is arranged on the outer contour of the door panel 3; the door frame 2 seals the pickup window through the sealing ring 4. Since the door panel 3 is a door panel that can transmit the wavelength of the forming laser, therefore, during forming, under the action of the shaft drive, the door panel 3 is pressed tightly against the top plate 1 of the forming chamber, and a sealed space in the forming chamber can be formed by an additionally provided sealing ring 4; when picking up the items, first, the optical flight unit 5 moves in translation to a position outside the forming format that allows the door panel 3 to be safely opened; then, under the action of the shaft drive, the shaft drive drives the shaft assembly 6, and the shaft assembly 6 acts on the door frame to drive the door frame and the door panel 3 to open, with an opening angle of not less than 90°; finally, the overhead crane picks up the items from the top plate 1 of the forming chamber through the pick-up window. The utility model does not have an independent pick-up cabin, and the forming cabin is the pick-up cabin. After the forming is completed, the items can be picked up directly, which greatly improves the efficiency.

[0035] The technical solution of the utility model is described in detail below in conjunction with specific embodiments:

[0036] Embodiment 1:

[0037] See also Figure 1 as well as Figure 2 The pickup cabin for additive manufacturing provided in this embodiment has a pickup window on the top plate 1 of the forming chamber, and a door panel 3 with a door frame 2 is provided at the pickup window.

[0038] See also Figure 2 as well as Figure 6, the shaft assembly 6 includes a shaft 63 and at least one first long rod 61; illustratively, in this embodiment, the shaft assembly 6 includes a first long rod 61 and a second long rod 62, the structure of the first long rod 61 is the same as that of the second long rod 62, and the first long rod 61 is connected to the second long rod 62 through the shaft 63, that is, when the shaft 63 rotates around its axis, it can drive the first long rod 61 and the second long rod 62 to move at the same time. Taking the first long rod 61 as an example, one end of the first long rod 61 is connected to the door panel 3, and the other end is connected to the shaft 63; the shaft driving member is connected to the shaft 63 and drives the door panel 3 to open or close the pickup window through the shaft 63 and the first long rod 61. See Figure 3 as well as Figure 6 In this embodiment, the shaft driving member adopts a hydraulic driving member, and the hydraulic driving member is arranged at either end or both ends of the shaft 63. Exemplarily, the hydraulic driving member includes an articulated seat 13 and a hydraulic push rod 14; the shaft assembly 6 also includes a push rod connecting rod 64 and an articulated shaft 65; the articulated seat 13 is fixedly arranged on the top plate 1 of the forming chamber; one end of the hydraulic push rod 14 is articulated with the articulated seat 13, and the other end is articulated with the articulated shaft 65; the articulated shaft 65 is connected to the shaft 63 through the push rod connecting rod 64 and drives the shaft 63 to rotate around the axial direction of the shaft 63.

[0039] See also Figure 3 as well as Figure 5 , the shaft assembly 6 is arranged on the door panel 3 through a fixed connection. The fixed connection includes a connection seat 9, a first rotation pin 10, a connecting rod assembly 11 and a second rotation pin 12; the connection seat 9 is fixedly arranged on the door panel 3; the shaft assembly 6 is arranged on the connection seat 9 through the connecting rod assembly 11; the first rotation pin 10 is arranged between the shaft assembly 6 and the connecting rod assembly 11; the second rotation pin 12 is arranged between the connecting rod assembly 11 and the connection seat 9. Figure 5 The connecting rod assembly 11 includes a threaded rod 111 and a screw hole rod 112 connected in sequence from top to bottom; radial through holes are provided at the ends of the threaded rod 111 and the ends of the screw hole rod 112; the first rotating pin 10 and the second rotating pin 12 respectively penetrate the radial through holes. The threaded portion of the threaded rod 111 is screwed into the screw hole of the screw hole rod 112, and the total length of the connecting rod assembly 11 can be adjusted by adjusting the screwing depth.

[0040] See also Figure 2 as well as Figure 3 The optical flight unit 5 can fly along the X or Y direction on the top of the forming chamber, which can realize large-scale printing of parts. Figure 4The optical flight unit 5 includes a first galvanometer 51, a second galvanometer 52, a first beam expander 53, a second beam expander 54, an optical mounting plate 55, a first field mirror 56 and a second field mirror 57; the first galvanometer 51 and the second galvanometer 52 are arranged in parallel on the upper surface of the optical mounting plate 55; the first field mirror 56 and the second field mirror 57 are arranged in parallel on the lower surface of the optical mounting plate 55; the first beam expander 53, the first galvanometer 51 and the first field mirror 56 are on the same optical path; the second beam expander 54, the second galvanometer 52 and the second field mirror 57 are on the same optical path. When picking up the parts, the optical flight unit 5 moves in translation to a position outside the forming surface so that the door panel 3 can be opened safely; when forming, the optical flight unit 5 moves in translation to above the forming surface and realizes the forming operation through the door panel 3. See. Figure 3 , which is a schematic diagram showing that after the door panel 3 closes the forming window, the optical flight unit 5 moves translationally to the forming surface to prepare for forming.

[0041] Embodiment 2:

[0042] The structure of this embodiment is basically the same as that of the first embodiment, except that Figure 7 as well as Figure 8 The push rod connecting rod of the rotating shaft assembly 6 is at the corresponding position in the middle of the picking window, and the push rod is arranged on one side of the top plate of the forming chamber; the top plate of the forming chamber is provided with a groove within the rotation range of the push rod connecting rod of the rotating shaft assembly to realize the rotation of the rotating shaft assembly within the angle range required for opening and closing the door. That is, the rotating shaft driving member adopts a hydraulic driving member, and the hydraulic driving member is arranged in the middle of the rotating shaft 63.

[0043] Embodiment three:

[0044] The structure of this embodiment is basically the same as that of the first embodiment, except that Fig. 9 as well as Fig.10 The end of the rotating shaft of the rotating shaft assembly 6 is cylindrical. In this case, the rotating shaft driving member adopts a motor driving member, and the rotating shaft assembly 6 is driven to move by the motor driving member. Exemplarily, the motor driving member includes a motor 15, a reducer 16 and a coupling 17; the motor 15 is connected to the rotating shaft 63 through the reducer 16 and the coupling 17 and drives the rotating shaft 63 to rotate around the axial direction of the rotating shaft 63; the motor 15 is fixedly arranged on the top plate 1 of the forming chamber.

[0045] Embodiment 4:

[0046] The structure of this embodiment is basically the same as that of the first embodiment, except that Fig.11 as well as Fig.12, as a more convenient and simpler mode, when the shaft drive member adopts a manual drive member. Exemplarily, the manual drive member includes a handle 18 and a hinge 7; the door panel 3 is movably arranged on the pickup window through the hinge 7; the handle 18 is arranged on the door panel 3. Exemplarily, one or more clamping structures are arranged at the edge of the pickup window. The clamping structure can be a door frame 2 containing a door panel 3 connected to the top plate 1 of the forming chamber by screws, and there is a sealing ring between the door frame 2 and the top plate 1 of the forming chamber. Commercially available products such as quick clamps can also be used for clamping. Of course, in order to further improve the sealing performance, there is a sealing ring between the door frame 2 and the top plate 1 of the forming chamber. Exemplarily, the clamping structure is a through hole at the edge of the pickup window, and a threaded hole outside the sealing ring of the top plate 1 of the forming chamber, which is connected by screws through the through hole at the edge of the pickup window and the threaded hole on the top plate 1 of the forming chamber for clamping. The pickup window is opened and closed by manually operating the handle and the clamping structure.

[0047] Regardless of the above-mentioned embodiments, the detailed method of picking up the parts in the pickup cabin for additive manufacturing provided by the utility model is as follows: when the equipment completes part printing, the optical flight unit 5 is controlled to move to any side of the top of the equipment to a position outside the forming format where the pickup window can be opened normally; the Z axis rises to clean the surface of the part and excess metal powder; the direct connection between the substrate and the forming platform is removed; the pickup window on the top of the forming cabin is opened; the lifting eye screws of the pickup hoisting unit are fixed to the substrate, and the parts are hoisted to the outside of the equipment through the opened pickup window, thereby completing the pickup process of the equipment; the pickup window is closed, and the pickup window is pressed against the top plate of the forming chamber, and sealed with a sealing ring to form a sealed space in the forming cabin.

Claims

1. A pickup cabin for additive manufacturing, characterized in that: The additive manufacturing pickup cabin comprises a rotating shaft assembly (6), a rotating shaft driving member, a door panel (3), and a pickup window arranged on a top plate (1) of a forming chamber; the door panel (3) is arranged on the pickup window; one end of the rotating shaft driving member is arranged on the top plate (1) of the forming chamber, and the other end is connected to the rotating shaft assembly (6) and drives the door panel (3) to open or close the pickup window through the rotating shaft assembly (6).

2. The additive manufacturing pickup cabin according to claim 1, characterized in that: The rotating shaft assembly (6) comprises a rotating shaft (63) and at least one first long rod (61); one end of the first long rod (61) is connected to the door panel (3), and the other end is connected to the rotating shaft (63); the rotating shaft driving member is connected to the rotating shaft (63) and drives the door panel (3) to open or close the pickup window via the rotating shaft (63) and the first long rod (61).

3. The additive manufacturing pickup cabin according to claim 2, characterized in that: The rotating shaft driving member is a motor driving member, a hydraulic driving member or a manual driving member.

4. The additive manufacturing pickup cabin according to claim 3, characterized in that: When the rotating shaft driving member is a motor driving member, the motor driving member comprises a motor (15), a reducer (16) and a coupling (17); the motor (15) is connected to the rotating shaft (63) through the reducer (16) and the coupling (17) and drives the rotating shaft (63) to rotate around the axial direction of the rotating shaft (63); the motor (15) is fixedly arranged on the top plate (1) of the forming chamber; When the rotating shaft driving member is a hydraulic driving member, the hydraulic driving member comprises an articulated seat (13) and a hydraulic push rod (14); the rotating shaft assembly (6) further comprises a push rod connecting rod (64) and an articulated shaft (65); the articulated seat (13) is fixedly arranged on the top plate (1) of the forming chamber; one end of the hydraulic push rod (14) is articulated to the articulated seat (13), and the other end is articulated to the articulated shaft (65); the articulated shaft (65) is connected to the rotating shaft (63) through the push rod connecting rod (64) and drives the rotating shaft (63) to rotate around the axial direction of the rotating shaft (63); When the rotating shaft driving member is a manual driving member, the manual driving member comprises a handle (18) and a hinge (7); the door panel (3) is movably arranged on the pickup window via the hinge (7); and the handle (18) is arranged on the door panel (3).

5. The additive manufacturing pickup cabin according to claim 4, characterized in that: When the rotating shaft driving member is a hydraulic driving member, the hydraulic driving member is arranged at the end or the middle of the rotating shaft (63).

6. The additive manufacturing pickup cabin according to any one of claims 1 to 5, characterized in that: The additive manufacturing pickup cabin also includes a fixed connection piece; the rotating shaft assembly (6) is arranged on the door panel (3) via the fixed connection piece.

7. The additive manufacturing pickup cabin according to claim 6, characterized in that: The fixed connection member comprises a connection seat (9), a first rotating pin (10), a connecting rod assembly (11) and a second rotating pin (12); the connection seat (9) is fixedly arranged on the door panel (3); the rotating shaft assembly (6) is arranged on the connection seat (9) through the connecting rod assembly (11); the first rotating pin (10) is arranged between the rotating shaft assembly (6) and the connecting rod assembly (11); and the second rotating pin (12) is arranged between the connecting rod assembly (11) and the connection seat (9).

8. The additive manufacturing pickup cabin according to claim 7, characterized in that: The connecting rod assembly (11) comprises a threaded rod (111) and a screw hole rod (112) connected in sequence from top to bottom; the ends of the threaded rod (111) and the ends of the screw hole rod (112) are both provided with radial through holes; the first rotating pin shaft (10) and the second rotating pin shaft (12) respectively penetrate the radial through holes.

9. The additive manufacturing pickup cabin according to claim 8, characterized in that: The inner contour of the pickup window is provided with a sealing groove (19), and a sealing ring (4) is embedded in the sealing groove (19).

10. The additive manufacturing pickup cabin according to claim 9, characterized in that: The door panel (3) is transparent; the additive manufacturing pickup cabin further comprises a door frame (2) arranged on the outer contour of the door panel (3); the door frame (2) seals the pickup window via a sealing ring (4).

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