阅读说明：本技术 一种高温密闭箱内3d打印喷嘴及载物台运动装置 (3D printing nozzle and objective table moving device in high-temperature closed box ) 是由 刘正文 赵时迁 金涛斌 焦向东 于 2020-12-09 设计创作，主要内容包括：本发明公开了一种高温密闭箱内3D打印喷嘴及载物台运动装置,包括高温密闭箱体、融熔挤压喷嘴、融熔头固定滑块、X轴向槽形滑块、Y轴向外伸推杆、Y轴向箱内滑杠、Y轴向槽形滑块、X轴向外伸推杆、X轴向箱内滑杠、载物平台、Z轴向外伸推杆。该运动装置设计简单、结构紧凑,在高温密闭箱体内无需机电部件参与驱动就能使融熔挤压喷嘴和载物平台,在密闭箱体内沿平面和垂直方向可控运动,同时又能避免高温密闭箱体向外散失热量,从而满足了金属熔融挤压快速成形方法中对高温密闭箱体环境下进行融熔挤压喷嘴和载物平台可控运动的要求。(The invention discloses a 3D printing nozzle and objective table moving device in a high-temperature closed box, which comprises a high-temperature closed box body, a melting extrusion nozzle, a melting head fixing slide block, an X axial groove-shaped slide block, a Y axial outward extending push rod, a Y axial in-box slide bar, a Y axial groove-shaped slide block, an X axial outward extending push rod, an X axial in-box slide bar, an objective table and a Z axial outward extending push rod. The moving device is simple in design and compact in structure, the melting extrusion nozzle and the carrying platform can move controllably along the plane and the vertical direction in the closed box body without the participation of electromechanical parts in driving, and meanwhile, the outward heat dissipation of the high-temperature closed box body can be avoided, so that the requirement of performing controllable movement on the melting extrusion nozzle and the carrying platform in the environment of the high-temperature closed box body in the metal melting extrusion rapid forming method is met.)

1. The utility model provides a 3D prints nozzle and objective table telecontrol equipment in high temperature seal box which characterized in that includes:

the device comprises a high-temperature closed box body (1), a melting extrusion nozzle (2), a melting head fixing slide block (3), an X axial groove-shaped slide block (4), a Y axial outward extending push rod (5), a Y axial in-box slide bar (6), a Y axial groove-shaped slide block (7), an X axial outward extending push rod (8), an X axial in-box slide bar (9), a carrying platform (10) and a Z axial outward extending push rod (11);

the melting extrusion nozzle (2) is fixed in the melting head fixing slide block (3), and the direction of the melting extrusion nozzle (2) is vertical downward;

the upper part of the melting head fixing sliding block (3) is arranged in an empty groove of the X-axis groove-shaped sliding block (4), two semi-circular arc-shaped sliding grooves are formed in the front and the back of the upper part of the melting head fixing sliding block (3) along the X-axis direction and are embedded with semi-cylindrical guide rails on two inner side walls of the empty groove of the X-axis groove-shaped sliding block (4), so that the melting head fixing sliding block (3) can slide left and right in the empty groove of the X-axis groove-shaped sliding block (4);

the X-axis groove-shaped sliding block (4) is erected and installed on a Y-axis in-box sliding bar (6) through sliding holes on the left side and the right side of the X-axis groove-shaped sliding block, and the middle part of the rear side of the X-axis groove-shaped sliding block (4) is fixedly connected with one end of a Y-axis outward extending push rod (5);

the Y-axis outwards extending push rod (5) extends out of the sealed box body (1) through a through hole in the rear side of the high-temperature sealed box body (1), the extending other end of the Y-axis outwards extending push rod is connected with an external push-pull movement mechanism, and the Y-axis outwards extending push rod (5) can drive the X-axis groove-shaped slide block (4) to slide back and forth along the Y axis in the box slide bar (6).

2. The 3D printing nozzle and stage moving device in the high-temperature closed box according to claim 1, wherein the lower part of the melting head fixing slide block (3) is installed in the empty groove of the Y-axis groove-shaped slide block (7), two semi-circular sliding grooves are arranged on the left and right sides of the lower part of the melting head fixing slide block (3) along the Y-axis direction, and are embedded with semi-cylindrical guide rails on two inner side walls of the empty groove of the Y-axis groove-shaped slide block (7), so that the melting head fixing slide block (3) can slide back and forth in the empty groove of the Y-axis groove-shaped slide block (7);

the Y-axis groove-shaped sliding block (7) is erected and installed on an X-axis in-box sliding bar (9) through sliding holes on the left side and the right side of the Y-axis groove-shaped sliding block, and the middle part of the left side of the Y-axis groove-shaped sliding block (7) is fixedly connected with one end of an X-axis outward extending push rod (8);

the X-axis outwards extending push rod (8) extends out of the sealed box body (1) through a through hole in the left side of the high-temperature sealed box body (1), the extending other end of the X-axis outwards extending push rod is connected with an external push-pull movement mechanism, and the Y-axis groove-shaped slide block (7) can be driven to slide left and right along the X-axis direction along the Y-axis in-box slide bar (9) through the push-pull movement of the X-axis outwards extending push rod (8).

3. The 3D printing nozzle and stage moving device in the high-temperature closed box according to claim 2, wherein the stage (10) is located below the melting extrusion nozzle (2), and the lower part of the stage is connected with one end of a Z-axis outward extending push rod (11).

4. The 3D printing nozzle and objective table moving device in the high-temperature closed box according to claim 3, characterized in that the Z-axis outward extending push rod (11) extends through a through hole at the bottom of the high-temperature closed box body (1), the extending end is connected with an external push-pull moving mechanism, and the objective table (10) can be driven to move up and down by the push-pull movement of the Z-axis outward extending push rod (11).

5. The 3D printing nozzle and stage moving device in the high temperature closed box according to claim 4, wherein the melting head fixing slide block (3) is a square column structure with a hollow middle part, the melting extrusion nozzle (2) can be inserted into the cavity of the middle part, the upper part of the square column structure is respectively provided with two semi-circular sliding grooves along the front and back of the X axial direction, and the lower part of the square column structure is respectively provided with two semi-circular sliding grooves along the left and right sides of the Y axial direction.

6. The 3D printing nozzle and objective table moving device in the high-temperature closed box according to claim 1, characterized in that the X, Y axial groove-shaped sliding blocks (4), (7) have the same mechanical structure and are both long-strip-shaped structures with a rectangular hole in the middle, two semi-cylindrical guide rails are installed on two sides of the inner wall and are installed in cooperation with the semi-arc-shaped sliding grooves on the upper and lower parts of the melting head fixing sliding block (3).

7. The 3D printing nozzle and stage moving device in the high-temperature closed box according to claim 1, wherein the X, Y axial in-box sliding bars (6), (9) are fixedly arranged in the high-temperature closed box in parallel in groups of two.

Technical Field

The invention relates to 3D printing or rapid prototyping manufacturing equipment, in particular to a 3D printing nozzle and an objective table moving device in a high-temperature closed box.

Background

3D printing or rapid prototyping manufacture is a hot research object in various advanced manufacturing fields in a convenient and rapid manufacturing form with special forming capability, and with the development of the technological level, the metal 3D printing technology which is a key technology is more and more concerned by scientific research institutions and industrial manufacturers and becomes a new and emerging manufacturing means.

At present, the metal 3D printing or rapid forming technology is mainly based on a laser heating source, in the forming process, a laser emitting head can not move generally in a sealed forming working space, and the aim of sintering and forming is achieved by changing the laser irradiation angle to enable a laser focusing point to move on a powder layer on a platform surface rapidly. Meanwhile, the whole process of metal laser 3D printing or rapid forming has low requirement on the space temperature, so that the moving mechanism of the laser head or the accumulation platform generally does not require the mechanism and the electric part of the moving mechanism to have higher high-temperature resistance.

Compared with the 3D printing technology of a laser heat source, the research on the 3D rapid forming technology of metal melting extrusion is less, no metal melting forming equipment which can be really used is available at present, one of the original reasons lies in that the forming environment condition required by the metal melting forming equipment is harsh, the main mechanical structure of the metal melting forming equipment generally needs to be immersed in a closed high-temperature environment, great inconvenience is brought to the mechanical structure design and the electrical design, the high-temperature resistance of the material needs to be considered, and meanwhile, the use of electrical elements in the high-temperature environment is avoided as much as possible.

Disclosure of Invention

Based on the problems faced by the metal melting extrusion 3D printing or rapid forming technology, the invention aims to provide a 3D printing nozzle and an objective table moving device in a high-temperature closed box.

The purpose of the invention is realized by the following technical scheme:

the invention discloses a 3D printing nozzle and objective table moving device in a high-temperature closed box, which has the following preferred specific implementation modes:

the method comprises the following steps:

the device comprises a high-temperature closed box body 1, a melting extrusion nozzle 2, a melting head fixing slide block 3, an X axial groove-shaped slide block 4, a Y axial outward extending push rod 5, a Y axial in-box slide bar 6, a Y axial groove-shaped slide block 7, an X axial outward extending push rod 8, an X axial in-box slide bar 9, a carrying platform 10 and a Z axial outward extending push rod 11;

the melting extrusion nozzle 2 is fixed in the melting head fixing slide block 3, and the direction of the melting extrusion nozzle 2 is vertical downwards;

the upper part of the melting head fixed sliding block 3 is arranged in an empty groove of the X-axial groove-shaped sliding block 4, two semi-circular arc-shaped sliding grooves are arranged in the front and the back of the upper part of the melting head fixed sliding block 3 along the X-axial direction and are embedded with semi-cylindrical guide rails on two inner side walls of the empty groove of the X-axial groove-shaped sliding block 4, so that the melting head fixed sliding block 3 can slide left and right in the empty groove of the X-axial groove-shaped sliding block 4;

the X-axis groove-shaped sliding block 4 is erected and installed on a Y-axis in-box sliding bar 6 through sliding holes on the left side and the right side of the X-axis groove-shaped sliding block, and is fixedly connected with one end of a Y-axis outward extending push rod 5 at the middle part of the rear side of the X-axis groove-shaped sliding block 4;

the Y-axis outwards extending push rod 5 extends out of the sealed box body 1 through a through hole in the rear side of the high-temperature sealed box body 1, the extending other end of the Y-axis outwards extending push rod is connected with an external push-pull movement mechanism, and the Y-axis outwards extending push rod 5 can drive the X-axis groove-shaped slide block 4 to slide back and forth along the Y axis along the in-box slide bar 6 in the Y axis direction.

According to the technical scheme provided by the invention, the 3D printing nozzle and objective table moving device in the high-temperature closed box provided by the embodiment of the invention has the advantages of simple design and compact structure, can enable the melting extrusion nozzle and the objective table to move controllably along the plane and the vertical direction without the participation of electromechanical parts in the high-temperature closed box, and can avoid the outward heat dissipation of the high-temperature closed box, thereby meeting the requirements of performing controllable movement on the melting extrusion nozzle and the objective table in the high-temperature closed box environment in a metal melting extrusion rapid forming method.

Drawings

FIG. 1 is a schematic view of a partial cross-sectional structure of a high temperature enclosure according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of the embodiment of the present invention in front;

in the figure:

1-high temperature closed box body; 2-melting and extruding the nozzle; 3-the melting head fixes the slide block; 4-X axial groove-shaped sliding blocks; 41-a semi-cylindrical guide rail at the inner side of the groove wall; 5-Y axial outward extending push rod; a 6-Y axial in-box slide bar; a 7-Y axial groove-shaped sliding block; 8-X axial outward extending push rods; a 9-X axial in-box slide bar; 10-a carrier platform; the 11-Z axial direction extends outwards to push the rod.

Detailed Description

The embodiments of the present invention will be described in further detail below. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.

The invention discloses a 3D printing nozzle and objective table moving device in a high-temperature closed box, which has the following preferred specific implementation modes:

the method comprises the following steps:

the device comprises a high-temperature closed box body 1, a melting extrusion nozzle 2, a melting head fixing slide block 3, an X axial groove-shaped slide block 4, a Y axial outward extending push rod 5, a Y axial in-box slide bar 6, a Y axial groove-shaped slide block 7, an X axial outward extending push rod 8, an X axial in-box slide bar 9, a carrying platform 10 and a Z axial outward extending push rod 11;

the melting extrusion nozzle 2 is fixed in the melting head fixing slide block 3, and the direction of the melting extrusion nozzle 2 is vertical downwards;

the upper part of the melting head fixed sliding block 3 is arranged in an empty groove of the X-axial groove-shaped sliding block 4, two semi-circular arc-shaped sliding grooves are arranged in the front and the back of the upper part of the melting head fixed sliding block 3 along the X-axial direction and are embedded with semi-cylindrical guide rails on two inner side walls of the empty groove of the X-axial groove-shaped sliding block 4, so that the melting head fixed sliding block 3 can slide left and right in the empty groove of the X-axial groove-shaped sliding block 4;

the X-axis groove-shaped sliding block 4 is erected and installed on a Y-axis in-box sliding bar 6 through sliding holes on the left side and the right side of the X-axis groove-shaped sliding block, and is fixedly connected with one end of a Y-axis outward extending push rod 5 at the middle part of the rear side of the X-axis groove-shaped sliding block 4;

the Y-axis outwards extending push rod 5 extends out of the sealed box body 1 through a through hole in the rear side of the high-temperature sealed box body 1, the extending other end of the Y-axis outwards extending push rod is connected with an external push-pull movement mechanism, and the Y-axis outwards extending push rod 5 can drive the X-axis groove-shaped slide block 4 to slide back and forth along the Y axis along the in-box slide bar 6 in the Y axis direction.

The lower part of the melting head fixing slide block 3 is arranged in an empty groove of the Y-axial groove-shaped slide block 7, the left and right sides of the lower part of the melting head fixing slide block 3 are also provided with two semi-arc slide grooves along the Y-axial direction, and the two semi-arc slide grooves are embedded with semi-cylindrical guide rails on two inner side walls of the empty groove of the Y-axial groove-shaped slide block 7, so that the melting head fixing slide block 3 can also slide back and forth in the empty groove of the Y-axial groove-shaped slide block 7;

the Y-axis groove-shaped sliding block 7 is erected and installed on an X-axis in-box sliding rod 9 through sliding holes on the left side and the right side of the Y-axis groove-shaped sliding block, and the middle part of the left side of the Y-axis groove-shaped sliding block 7 is fixedly connected with one end of an X-axis outward extending push rod 8;

the X-axis outwards extending push rod 8 extends out of the high-temperature sealed box body 1 through a through hole in the left side of the high-temperature sealed box body 1, the extending other end of the X-axis outwards extending push rod is connected with an external push-pull movement mechanism, and the Y-axis groove-shaped slide block 7 can be driven by the push-pull movement of the X-axis outwards extending push rod 8 to slide left and right along the X-axis direction along the Y-axis in-box slide bar 9.

The loading platform 10 is positioned below the melting extrusion nozzle 2, and the lower part of the loading platform is connected with one end of a Z-axis outward extending push rod 11.

The Z-axis outward extending push rod 11 extends out through a through hole at the bottom of the high-temperature closed box body 1, the extending tail end is connected with an external push-pull movement mechanism, and the carrying platform 10 can be driven to move up and down through the push-pull movement of the Z-axis outward extending push rod 11.

The melting head fixing slide block 3 is a square column structure with a hollow middle part, a melting extrusion nozzle 2 can be inserted into a cavity in the middle part, two semicircular arc-shaped sliding grooves are respectively arranged on the upper part of the square column structure along the front and the back of the X axial direction, and two semicircular arc-shaped sliding grooves are respectively arranged on the lower part of the square column structure along the left side and the right side of the Y axial direction.

The X, Y axial groove-shaped sliding blocks 4 and 7 have the same mechanical structure and are of strip-shaped structures with rectangular holes in the middle, two semi-cylindrical guide rails are arranged on two sides of the inner wall and are matched with the semi-arc-shaped sliding grooves on the upper and lower parts of the melting head fixing sliding block 3.

The X, Y axial in-box sliding bars 6 and 9 are respectively arranged in the high-temperature closed box body in parallel and fixedly in a group of two.

According to the 3D printing nozzle and objective table moving device in the high-temperature closed box, the nozzle is placed in the high-temperature closed box, the nozzle and the melting accumulation platform can move, or the nozzle and the accumulation platform can only move independently, so that the metal melting extrusion head and the objective table placed in the high-temperature closed box can move rapidly along three spatial axes of X, Y and Z. The metal melting extrusion head can move along a horizontal plane in the closed box body, and the carrying platform can move up and down along the Z axis below the extrusion head.

The Y, X axial groove-shaped sliding blocks can respectively move left and right and back and forth along the X, Y axial box inner sliding bar by pulling the X, Y axial outward extending push rod, the simultaneous movement of the X, Y axial groove-shaped sliding blocks can drive the movement of the melting head fixing sliding blocks clamped in the two groove-shaped sliding blocks, so that the actual movement of the melting head fixing sliding blocks is consistent with the pulling direction of the X, Y axial outward extending push rod, and the melting extrusion nozzle is fixed in the melting head fixing sliding blocks, so that the melting nozzle in the high-temperature closed box body can be directly driven to freely move in the horizontal plane from the outside; but cargo platform passes through the pulling of the overhanging push rod of Z axial and is elevating movement by outside direct drive, accomplishes the one deck at melting extrusion nozzle and piles up the back, and steerable cargo platform descends, carries out the molten metal of new one deck and piles up, finally reaches the purpose by inside nozzle of the simple push-and-pull motion direct drive high temperature airtight box of outside and platform, and the triaxial is through the single pole drive again can be fine avoid the internal thermal scattering and disappearing of high temperature airtight box, guarantees the incasement temperature stability. The moving device is simple in design and compact in structure, the melting extrusion nozzle and the carrying platform can move controllably along the plane and the vertical direction without the participation of electromechanical parts in the high-temperature closed box body, and meanwhile, the outward heat dissipation of the high-temperature closed box body can be avoided, so that the requirement of performing controllable movement on the melting extrusion nozzle and the carrying platform in the high-temperature closed box body environment in the metal melting extrusion rapid forming method is met.

The specific embodiment is as follows:

as shown in fig. 1 and fig. 2, the 3D printing nozzle and object stage moving device in the high-temperature closed box provided in this embodiment is a moving device applied to a metal melt extrusion method for 3D printing or rapid forming, and can control the 3D printing nozzle and the object stage in the high-temperature closed box by externally driving 3 push-pull rods to perform in-plane movement and up-down lifting movement.

The method specifically comprises the following steps: the device comprises a high-temperature closed box body 1, a melting extrusion nozzle 2, a melting head fixing slide block 3, an X axial groove-shaped slide block 4, a Y axial outward extending push rod 5, a Y axial in-box slide bar 6, a Y axial groove-shaped slide block 7, an X axial outward extending push rod 8, an X axial in-box slide bar 9, a carrying platform 10 and a Z axial outward extending push rod 11; wherein, the melting extrusion nozzle 2 is fixed in the melting head fixing slide block 3, the upper part of the melting head fixing slide block 3 is arranged in the empty groove of the X-axial groove-shaped slide block 4, the front and the back of the upper part of the melting head fixing slide block 3 are provided with two semi-circular arc-shaped slide grooves along the X-axial direction, and are embedded with semi-cylindrical guide rails on the two inner side walls of the empty groove of the X-axial groove-shaped slide block 4, the X-axial groove-shaped slide block 4 is erected on a Y-axial in-box slide bar 6 through slide holes on the left and the right sides, the middle part of the back side of the X-axial groove-shaped slide block 4 is fixedly connected with one end of a Y-axial outward extending push rod 5, the Y-axial outward extending push rod 5 extends out of the closed box body 1 through a through hole on the back side of the high-temperature closed box body 1, the extended other end is connected with an external push-pull movement mechanism, the lower part of the melting head, the Y-axis groove-shaped sliding block 7 is erected and installed on an X-axis in-box sliding rod 9 through sliding holes on the left side and the right side of the Y-axis groove-shaped sliding block 7, the middle position of the left side of the Y-axis groove-shaped sliding block 7 is fixedly connected with one end of an X-axis outward extending push rod 8, the X-axis outward extending push rod 8 extends out of the closed box body 1 through a through hole on the left side of the high-temperature closed box body 1, the extending other end of the X-axis outward extending push rod is connected with an external push-pull movement mechanism, a carrying platform 10 is located below the melting extrusion nozzle 2, the lower portion of the carrying platform is connected with one end of a Z-axis outward extending push rod 11, the Z-axis outward extending push rod 11 extends out through a through hole on.

The melting head fixing slide block 3 is a square column structure with a hollow middle part, a melting extrusion nozzle 2 can be inserted into a cavity in the middle part, two semi-circular arc-shaped slide grooves are respectively arranged on the front and the back of the upper part of the square column structure along the X axial direction, and two semi-circular arc-shaped slide grooves are respectively arranged on the left side and the right side of the lower part of the square column structure along the Y axial direction;

the X, Y axial groove-shaped sliding blocks 4 and 7 have the same mechanical structure and are both strip-shaped structures with a rectangular hole in the middle, two semi-cylindrical guide rails are arranged on two sides of the inner wall and are matched with the semi-arc sliding grooves on the upper and lower parts of the melting head fixing sliding block 3;

the X, Y axial in-box sliding bars 6 and 9 are respectively fixed in the high-temperature closed box body in parallel in a group of two.

The 3D printing nozzle and the object stage moving device in the high-temperature closed box can enable the metal melting extrusion head and the object stage in the high-temperature closed box to move rapidly along three spatial axes of X, Y and Z. The metal melting extrusion head can move along a horizontal plane in the closed box body, and the carrying platform can move up and down along the Z axis below the extrusion head. The triaxial is driven by the single rod, so that heat in the high-temperature closed box can be well prevented from dissipating, and the temperature in the box is stable. The moving device is simple in design and compact in structure, the melting extrusion nozzle and the carrying platform can move controllably along the plane and the vertical direction without the participation of electromechanical parts in the high-temperature closed box body, and meanwhile, the outward heat dissipation of the high-temperature closed box body can be avoided, so that the requirement of performing controllable movement on the melting extrusion nozzle and the carrying platform in the high-temperature closed box body environment in the metal melting extrusion rapid forming method is met.

With reference to fig. 1 and 2, the working flow of the present invention is as follows:

the Y, X axial groove-shaped sliding blocks can respectively move left and right and back and forth along the X, Y axial box inner sliding bar by pulling the X, Y axial outward extending push rod, the simultaneous movement of the X, Y axial groove-shaped sliding blocks can drive the movement of the melting head fixing sliding blocks clamped in the two groove-shaped sliding blocks, so that the actual movement of the melting head fixing sliding blocks is consistent with the pulling direction of the X, Y axial outward extending push rod, and the melting extrusion nozzle is fixed in the melting head fixing sliding blocks, so that the melting nozzle in the high-temperature closed box body can be directly driven to freely move in the horizontal plane from the outside; the objective platform can be directly driven by the outside to do lifting motion through the pulling of the Z-axis outward extending push rod, after the fused extrusion nozzle finishes one layer of accumulation, the objective platform can be controlled to descend, new layer of fused metal accumulation is carried out, and finally the purpose of directly driving the nozzle and the platform inside the high-temperature sealed box body through the simple external push-pull motion is achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.