A horizontal pushing printing on-track 3D printing device for printing workpieces

Abstract

The application discloses a kind of 3D printing device of horizontal push printing workpiece, comprising: overall frame, horizontal-vertical movement printing platform, printing head, active-passive clamping mechanism, push clamping mechanism, roller platform and printing piece;Horizontal-vertical movement printing platform is installed on overall frame, printing head is installed on horizontal-vertical movement printing platform, horizontal-vertical movement printing platform is used to drive printing head to move in horizontal and vertical direction;Two active-passive clamping mechanisms are installed on the top of overall frame, two roller platforms are installed on the bottom of overall frame;Two are used to realize the support, clamping and limiting of printing piece;Push clamping mechanism is installed in overall frame, for pushing printing piece;Printing piece cooperates with printing head to realize rail 3D printing;The application can fill the vacancy of 3D printing device in space in-orbit manufacturing printing piece technical field about adapting different types, different shapes, different width printing spare parts.

Description

Technical Field

[0001] This invention belongs to the field of space-based on-orbit additive manufacturing technology, specifically relating to an on-orbit 3D printing device for horizontally pushing printed workpieces. Background Technology

[0002] To improve the reliability of spacecraft in orbit and prevent accidents, long-duration manned space missions often require a large number of on-orbit maintenance components. Research indicates that tens of tons of on-orbit spare parts are needed to cover various potential malfunctions of a space station, as well as ground-based spare parts that can be launched at any time. However, only a small number of these spare parts are ultimately used for replacement. This is because while various spare parts need to be prepared to cover almost all potential malfunctions, malfunctions themselves are random, so only a small number of spare parts are ultimately put into use. If this approach is used to ensure the success of future deep-space manned space missions, launching spare parts into space will consume enormous resources. Summary of the Invention

[0003] To address the current situation where spare parts have low utilization rates but require significant resources to launch into space for backup, and to fill the gap in the field of on-orbit 3D printing technology for adapting to different types, shapes, and widths of printed spare parts, this invention proposes an on-orbit 3D printing device that horizontally pushes printed workpieces, which can solve the problems mentioned in the background art.

[0004] This invention is achieved through the following technical solution:

[0005] A 3D printing device for horizontally pushing and printing workpieces includes: an overall frame, a horizontal-vertical moving printing platform, a print head, an active-passive clamping mechanism, a pushing and clamping mechanism, a roller platform, and the printed part;

[0006] The horizontal-vertical moving printing platform is mounted on the overall frame, and the print head is mounted on the horizontal-vertical moving printing platform. The horizontal-vertical moving printing platform is used to drive the print head to translate horizontally and vertically in a three-dimensional coordinate system. Let the horizontal direction of the print head movement be the X-axis direction, the vertical direction be the Y-axis direction, and the direction perpendicular to the XY plane be the Z-axis direction.

[0007] The two active-passive clamping mechanisms are respectively installed on the top of the overall frame, and the two roller platforms are respectively installed on the bottom of the overall frame. The positions of the two roller platforms are vertically opposite to the positions of the two active-passive clamping mechanisms. The active-passive clamping mechanisms and roller platforms work together to support the printed parts, clamp them along the Y-axis, and limit their movement in the X-axis.

[0008] The push-and-hold mechanism is installed within the overall frame and is used to push the printed part along the Z-axis; the printed part cooperates with the print head to achieve on-orbit 3D printing.

[0009] Furthermore, each active-passive clamping mechanism includes: an active clamping mechanism A and a passive clamping mechanism;

[0010] The active clamping mechanism A is used to actively clamp the printed parts, and the passive clamping mechanism is used to passively clamp the printed parts.

[0011] Furthermore, the active clamping mechanism A includes: an active clamping stepper motor, an electric displacement stage, a linear motion spring mechanism A, a pressure sensor, and a workpiece clamping plate;

[0012] The electric displacement stage is fixed to the overall frame. The active clamping stepper motor is inserted into the motor interface of the electric displacement stage, which drives the electric displacement stage to move along the Y-axis. The linear motion spring mechanism A is installed on the electric displacement stage and is connected to the workpiece clamping plate by straight rod bolts. The upper and lower ends of the pressure sensor are connected to the lower side of the electric displacement stage-linear motion spring mechanism connector and the upper side of the workpiece clamping plate, respectively. The pressure sensor is used to measure the clamping force of the workpiece clamping plate actively pressing the printed part under working conditions. When the active clamping stepper motor rotates, the electric displacement stage will drive the linear motion spring mechanism A, the pressure sensor, and the workpiece clamping plate to move in the vertical direction. When the workpiece clamping plate abuts against the surface of the printed part, the printed part is clamped.

[0013] Furthermore, the passive clamping mechanism includes: a frame-passive clamping mechanism connector, a linear movement spring mechanism B, a straight rod-clamping wheel connector, and a passive clamping wheel;

[0014] The frame-passive clamping mechanism connector is fixed to the overall frame by bolts. The linear motion spring mechanism B is fixed to the frame-passive clamping mechanism connector. The passive clamping wheel and the linear motion spring mechanism B are fixed together by the straight rod-clamping wheel connector.

[0015] Furthermore, the pushing and clamping mechanism includes: an active clamping mechanism B, a pushing mechanism, and a workpiece clamping platform;

[0016] The pushing mechanism is fixed to the overall frame, and the top and bottom of the pushing mechanism are each provided with two or more guide rails arranged along the Z-axis direction; the workpiece clamping platform is a rectangular frame, installed on the guide rails of the pushing mechanism, and slidably engaged with the guide rails, and can move along the length direction of the guide rails, that is, along the Z-axis direction; the active clamping mechanism B is fixed to the top of the workpiece clamping platform, and the active clamping mechanism B and the workpiece clamping platform can move synchronously in the pushing direction of the pushing mechanism; the active clamping mechanism B is used to clamp the printed parts, and the active clamping mechanism B has the same structure as the active clamping mechanism A; and the active clamping mechanism B is located between the two active-passive clamping mechanisms.

[0017] Furthermore, each roller platform includes: a workpiece clamping platform, platform rollers, and lateral clamping rollers;

[0018] The workpiece clamping platform is fixed at the bottom of the overall frame, and several platform rollers are respectively installed on the workpiece clamping platform. Each platform roller can roll, and the axis of the platform roller is set along the X-axis direction. The platform rollers are all higher than the plane where the workpiece clamping platform is located.

[0019] Several lateral clamping rollers are divided into two sides, both of which are mounted on the roller platform by straight rod bolts. The distance between the two lateral clamping rollers is the same as the width of the printed part, and the axis of each lateral clamping roller is set along the Y-axis.

[0020] Furthermore, the workpiece clamping platform has elongated holes machined on both sides, with the length direction of the elongated holes being set along the X-axis; the lateral clamping rollers are installed in the elongated holes by adjusting straight bolts, and the distance between the two lateral clamping rollers can be adjusted by adjusting the position of the straight bolts in the elongated holes.

[0021] Furthermore, the horizontal-vertical moving printing platform includes: a printing platform frame, a horizontal X-axis moving mechanism, and a vertical Y-axis moving mechanism;

[0022] The printing platform frame is mounted on the overall frame, the horizontal X-axis moving mechanism is mounted on the printing platform frame, the vertical Y-axis moving mechanism is mounted on the horizontal X-axis moving mechanism, and the print head is mounted on the vertical Y-axis moving mechanism; the horizontal X-axis moving mechanism is used to drive the print head to move along the X-axis direction, and the vertical Y-axis moving mechanism is used to drive the print head to move along the Y-axis direction.

[0023] Furthermore, it also includes: laser displacement sensors;

[0024] A laser displacement sensor is mounted on the overall frame to measure the distance between the print head and the printed part.

[0025] Beneficial effects:

[0026] (1) The main advantage of 3D printing technology, i.e., additive manufacturing technology, in manufacturing replacement parts for spacecraft in orbit is that astronauts can use raw materials to manufacture spare parts as needed. This timely manufacturing capability provides flexibility for fault repair, reduces uncertainty, and thus reduces the need for spare parts inventory. Additive manufacturing technology can provide broader risk coverage for manned space missions. In addition, additive manufacturing raw materials are more compact in volume than spare parts, thereby reducing the loading volume. The improved space utilization efficiency through this method can be used to increase the habitable space for astronauts or the space for scientific experiments in manned space missions. At the same time, combined with additive manufacturing material recycling technology, the mass of raw materials in orbit can be further reduced. In future manned deep space exploration, the availability of replaceable parts on orbit can effectively address unforeseen circumstances during payload maintenance and scientific experiments, ensuring flight safety. Therefore, this invention provides a horizontally pushing 3D printing device for printing workpieces. Addressing the problem of low utilization rates of existing spare parts that require significant resources to launch into space for backup, this invention is economical, portable, and fills a gap in the field of on-orbit 3D printing technology for adapting to different types, shapes, and widths of printed spare parts.

[0027] (2) The active-passive clamping mechanism of the present invention is designed with an active clamping mechanism A for the shape or width of the printed part. The active clamping mechanism A can change the workpiece clamping plate with different clamping surface shape and width according to the different upper surface of the printed workpiece, so that different types, shapes and widths of printed parts can be adapted to the clamping mechanism. At the same time, the stroke of the electric displacement stage in the mechanism can also be raised or lowered according to the different heights of the workpiece, which greatly improves the applicability and product adaptability of space on-orbit additive manufacturing technology and provides more ideas for the development of space on-orbit additive manufacturing technology.

[0028] (3) The present invention proposes a push clamping mechanism, which, together with the active clamping mechanism B in the push clamping mechanism, can make the printed part firmly clamped while being pushed outward, making the translation along the push direction more accurate; at the same time, the passive clamping wheel can also be replaced according to the change of the shape of the upper surface of the printed part, and under the action of the linear movement spring mechanism, it firmly fits the upper surface and side of the printed part; under the combined action of the active-passive clamping mechanism, the workpiece clamping platform, and the workpiece pressing platform, the remaining 5 degrees of freedom are completely restricted, thereby improving the printing accuracy and processing quality of on-orbit additive manufacturing.

[0029] (4) The workpiece clamping platform of the present invention has elongated holes on both sides, and the length direction of the elongated holes is set along the X-axis. The lateral clamping rollers are installed in the elongated holes by adjusting the straight rod bolts. The distance between the two lateral clamping rollers can be adjusted by adjusting the position of the straight rod bolts in the elongated holes, so as to improve the applicability to printed parts of different widths.

[0030] (5) The present invention also includes a laser displacement sensor, which is used to measure the distance between the print head and the printed part. Based on the information measured by the laser displacement sensor, the print head can adjust its position more accurately and improve the printing accuracy of the print head on the printed part. Attached Figure Description

[0031] Figure 1 This is an overall structural diagram of the present invention;

[0032] Figure 2 This is an overall framework diagram of the present invention;

[0033] Figure 3 This is a diagram of the horizontal-vertical moving printing platform in this invention;

[0034] Figure 4 This is a diagram of the active-passive clamping structure in this invention;

[0035] Figure 5 This is a diagram of the push-clamping mechanism in this invention;

[0036] Figure 6 This is a structural diagram of the roller platform in this invention;

[0037] Figure 7 This is a view of the printed parts in the working state of the present invention;

[0038] The components include: 1. Overall frame; 2. Horizontal-vertical moving printing platform; 20. Printing platform frame; 21. Horizontal X-axis moving mechanism; 22. Vertical Y-axis moving mechanism; 23. Horizontal moving-vertical fixed structure; 24. Print head; 25. Laser displacement sensor; 3. Active-passive clamping mechanism; 31. Active clamping mechanism A; 310. Active clamping stepper motor; 311. Electric displacement stage; 312. Electric displacement stage-linear movement spring mechanism connector; 313. Linear movement spring. Mechanism A; 314, Pressure sensor; 315, Workpiece clamping plate; 32, Passive clamping mechanism; 321, Frame-passive clamping mechanism connector; 322, Straight rod-clamping wheel connector; 323, Passive clamping wheel; 324, Linear movement spring mechanism B; 4, Push clamping mechanism; 41, Pushing mechanism; 42, Workpiece clamping platform; 43, Active clamping mechanism B; 5, Roller platform; 51, Workpiece pressing platform; 52, Platform roller; 53, Platform-roller connector; 54, Lateral pressing roller. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] This embodiment provides a 3D printing device for horizontally pushing and printing workpieces, such as... Figure 1 , Figure 7 As shown, it includes: an overall frame 1, a horizontal-vertical moving printing platform 2, a print head 24, an active-passive clamping mechanism 3, a pushing clamping mechanism 4, a roller platform 5, and a printable part 6;

[0041] like Figure 2 As shown, the overall frame 1 is composed of multiple truss-like structures;

[0042] like Figure 3 As shown, the horizontal-vertical moving printing platform 2 is installed inside the overall frame 1. The horizontal-vertical moving printing platform 2 includes: a printing platform frame 20, a horizontal X-axis moving mechanism 21, a vertical Y-axis moving mechanism 22, a horizontal moving-vertical fixing structure 23, and a laser displacement sensor 25.

[0043] The printing platform frame 20 is mounted on the overall frame 1. The horizontal X-axis moving mechanism 21 is mounted on the printing platform frame 20. The vertical Y-axis moving mechanism 22 is mounted on the horizontal X-axis moving mechanism 21 via a horizontal moving-vertical fixing structure 23. The print head 24 is mounted on the vertical Y-axis moving mechanism 22. The horizontal X-axis moving mechanism 11 and the vertical Y-axis moving mechanism 22 can respectively drive the print head 24 to complete translational movements in two degrees of freedom in the horizontal and vertical directions within the entire printing plane, allowing the print head 24 to move horizontally... The direction is the X-axis, the vertical direction is the Y-axis, and the direction perpendicular to the XY plane is the Z-axis. The horizontal X-axis moving mechanism 21 is used to drive the print head 24 to move along the X-axis, and the vertical Y-axis moving mechanism 22 is used to drive the print head 24 to move along the Y-axis. The horizontal moving-vertical fixing structure 23 connects the horizontal moving mechanism 11 and the vertical Y-axis moving mechanism 22, and at the same time, it will drive the entire vertical Y-axis moving mechanism 22 fixed on the structure to move along the X-axis with the movement of the horizontal X-axis moving mechanism 21.

[0044] Among them, the horizontal X-axis moving mechanism 11 and the vertical Y-axis moving mechanism 22 can be selected according to the printing size. They can be any moving actuator such as a lead screw slide or synchronous belt pulley that is currently available on the market or exists in any published patent or technology and can be adapted to the present invention; the print head 13 can be any print head structure in any additive manufacturing printing technology that is currently available on the market or exists in any published patent or technology.

[0045] A laser displacement sensor 25 is mounted on the overall frame 1 to measure the distance between the print head 24 and the printed part 6;

[0046] like Figure 4 As shown, the two active-passive clamping mechanisms 3 are respectively installed on the top of the overall frame 1, and the two active-passive clamping mechanisms 3 are arranged along the Z-axis direction;

[0047] Each active-passive clamping mechanism 3 includes: an active clamping mechanism A31 and a passive clamping mechanism 32; the active clamping mechanism A31 is used to actively clamp the printed part, and the passive clamping mechanism 32 is used to passively clamp the printed part.

[0048] The active clamping mechanism A31 includes: an active clamping stepper motor 310, an electric displacement stage 311, an electric displacement stage-linear movement spring mechanism connector 312, a linear movement spring mechanism A313, a pressure sensor 314, and a workpiece clamping plate 315.

[0049] The electric displacement stage 311 is bolted to the overall frame 1. An active clamping stepper motor 310 is inserted into the motor interface of the electric displacement stage 311, driving the electric displacement stage 311 to move along the Y-axis. A linear motion spring mechanism A313 is mounted on the electric displacement stage 311 via an electric displacement stage-linear motion spring mechanism connector 312. The linear motion spring mechanism A313 is connected to the workpiece clamping plate 315 via straight bolts. The pressure sensor 314 is connected at its upper and lower ends to the lower side of the electric displacement stage-linear motion spring mechanism connector 312 and the workpiece clamping plate, respectively. The upper side of the holding plate 315 is connected to the pressure sensor 314, which is used to measure the clamping force of the workpiece clamping plate 315 actively clamping the printed part 6 under working conditions; the spring in the linear motion spring mechanism A313 enables the linear motion spring mechanism A313 to maintain a vertically downward force; when the active clamping stepper motor 310 rotates, the electric displacement stage 311 will drive the linear motion spring mechanism A313, the pressure sensor 314, and the workpiece clamping plate 315 to move within a certain range in the vertical direction. When the workpiece clamping plate 315 abuts against the surface of the printed part 6, the printed part 6 is clamped.

[0050] The passive clamping mechanism 32 includes: a frame-passive clamping mechanism connector 321, a linear movement spring mechanism B324, a straight rod-clamping wheel connector 322, and a passive clamping wheel 323;

[0051] The frame-passive clamping mechanism connector 321 is fixed to the overall frame 1 by bolts, the linear movement spring mechanism B324 is fixed to the frame-passive clamping mechanism connector 321 by bolts, and the passive clamping wheel 323 and the linear movement spring mechanism B324 are fixed together by the straight rod-clamping wheel connector 322.

[0052] like Figure 5 As shown, the push clamping mechanism 4 is installed in the overall frame 1 and includes: an active clamping mechanism B43, a push mechanism 41 and a workpiece clamping platform 42.

[0053] The pushing mechanism 41 is fixed to the overall frame 1, and the top and bottom of the pushing mechanism 41 are each provided with two or more guide rails arranged along the Z-axis direction; the workpiece clamping platform 42 is a rectangular frame, installed on the guide rails of the pushing mechanism 41, and slides with the guide rails, and can move along the length direction of the guide rails, that is, along the Z-axis direction; the active clamping mechanism B43 is fixed to the top of the workpiece clamping platform 42 by structural components, and the active clamping mechanism B43 and the workpiece clamping platform 42 can move synchronously in the pushing direction of the pushing mechanism 41; the active clamping mechanism B43 is used to clamp the printed part 6, and the active clamping mechanism B43 has the same structure as the active clamping mechanism A31; and the active clamping mechanism B43 is located between the two active-passive clamping mechanisms 3;

[0054] Among them, the pushing mechanism 41 can be any of the ball screw slides or synchronous pulleys or other moving actuators that are currently available on the market or exist in any published patent or technology and can be adapted to the present invention.

[0055] like Figure 6 As shown, the two roller platforms 5 are respectively installed at the bottom of the overall frame 1, and the two roller platforms 5 are arranged along the Z-axis direction; the positions of the two roller platforms 5 are vertically opposite to the positions of the two active-passive clamping mechanisms 3.

[0056] Each roller platform 5 includes: a workpiece clamping platform 51, a platform roller 52, a platform-roller connector 53, and a lateral clamping roller 54;

[0057] The workpiece clamping platform 51 is fixed to the bottom of the overall frame 1. Several platform rollers 52 are respectively installed on the workpiece clamping platform 51 through platform-roller connectors 53. Each platform roller 52 can roll, and the axis of the platform roller 52 is set along the X-axis direction. The platform rollers 52 are slightly higher than the plane where the workpiece clamping platform 51 is located.

[0058] The workpiece clamping platform 51 has elongated holes machined on both sides, with the length of the elongated holes all set along the X-axis. Several lateral clamping rollers 54 are divided into two sides, each fixed in the elongated holes on the roller platform 5 by straight bolts. The distance between the two lateral clamping rollers 54 can be adjusted by adjusting the position of the straight bolts in the elongated holes. The distance between the two lateral clamping rollers 54 is the same as the width of the printed part 6, and the axis of each lateral clamping roller 54 is set along the Y-axis. The platform rollers 52 and the lateral clamping rollers 54 are used to support and guide the movement of the printed part 6 along the Z-axis.

[0059] Working principle: During operation, all active clamping mechanisms A31 and B43 need to be in the uppermost position. Then, a piece of printing material 6 is placed into the device for printing. During the entire printing process, the passive clamping wheels 323 in all passive clamping mechanisms 32 will press the upper side of the printing material 6 vertically downward under the action of the linear movement spring mechanism B324. The bottom of the printing material 6 is tightly attached to the upper surface of the workpiece pressing platform 51. The two sides of the printing material 6 are limited by the lateral pressing rollers located on both sides. Therefore, it is ensured that the printing material 6 will not move in any direction other than the pushing direction during the entire printing or pushing process. The pushing direction is the Z-axis direction.

[0060] After printing begins, the active clamping mechanism A31 in the two active-passive clamping mechanisms 3 in the pushing direction of the device starts to drive the linear motion spring mechanism 313, pressure sensor 314, and workpiece clamping plate 315 to move downward under the rotation of the active clamping stepper motor 310. Finally, the workpiece clamping plate 315 and the workpiece pressing platform 51 firmly clamp and press the printed part 6, further ensuring that no movement occurs during the printing process.

[0061] After the print head 24 prints one layer, the active clamping mechanism B43 and the workpiece clamping platform 42 in the push clamping mechanism 4 move to the near end of the print head 24 under the drive of the push mechanism 41, and the active clamping mechanism A31 and the workpiece clamping platform 42 are ensured not to collide with other structures by means of limit switches and similar technologies.

[0062] Upon reaching the designated position, the active clamping mechanism B43 begins to move, firmly clamping and pressing the printed part 6 between the workpiece clamping plate 315 and the workpiece clamping platform 42. At this time, all active clamping mechanisms A31 move upwards, disengaging the workpiece clamping plate 315 from the printed part 6. Then, driven by the pushing mechanism 41, the printed part 6 is pushed outwards by one layer's thickness before stopping. At this point, all active clamping mechanisms A31 move downwards, tightly adhering the workpiece clamping plate 315 to the printed part 6, and firmly clamping and pressing the printed part 6 between the workpiece clamping plate 315 and the workpiece pressing platform 51. Afterwards, the active clamping mechanism B43 in the pushing clamping mechanism 4 moves upwards, disengaging from the printed part 6, and the print head 24 continues printing the next layer. This process continues until the task of printing and pushing out the printed part is successfully completed.

[0063] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A 3D printing device for horizontally pushing and printing workpieces, characterized in that, include: Overall frame, horizontal-vertical moving printing platform, print head, active-passive clamping mechanism, push-clamping mechanism, roller platform and printed parts; The horizontal-vertical moving printing platform is mounted on the overall frame, and the print head is mounted on the horizontal-vertical moving printing platform. The horizontal-vertical moving printing platform is used to drive the print head to translate horizontally and vertically in a three-dimensional coordinate system. Let the horizontal direction of the print head movement be the X-axis direction, the vertical direction be the Y-axis direction, and the direction perpendicular to the XY plane be the Z-axis direction. The two active-passive clamping mechanisms are respectively installed on the top of the overall frame, and the two roller platforms are respectively installed on the bottom of the overall frame. The positions of the two roller platforms are vertically opposite to the positions of the two active-passive clamping mechanisms. The active-passive clamping mechanisms and roller platforms work together to support the printed parts, clamp them along the Y-axis, and limit their movement in the X-axis. The push-and-hold mechanism is installed within the overall frame and is used to push the printed part along the Z-axis; the printed part cooperates with the print head to achieve on-orbit 3D printing; Each active-passive clamping mechanism includes an active clamping mechanism A and a passive clamping mechanism. The active clamping mechanism A is used to actively clamp the printed part, and the passive clamping mechanism is used to passively clamp the printed part. The passive clamping mechanism includes: a frame-passive clamping mechanism connector, a linear movement spring mechanism B, a straight rod-clamping wheel connector, and a passive clamping wheel. The frame-passive clamping mechanism connector is fixed to the overall frame by bolts. The linear motion spring mechanism B is fixed to the frame-passive clamping mechanism connector. The passive clamping wheel and the linear motion spring mechanism B are fixed together by the straight rod-clamping wheel connector.

2. The 3D printing device for horizontally pushing and printing workpieces as described in claim 1, characterized in that, The active clamping mechanism A includes: an active clamping stepper motor, an electric displacement stage, a linear motion spring mechanism A, a pressure sensor, and a workpiece clamping plate; The electric displacement stage is fixed to the overall frame. The active clamping stepper motor is inserted into the motor interface of the electric displacement stage, which drives the electric displacement stage to move along the Y-axis. The linear motion spring mechanism A is installed on the electric displacement stage and is connected to the workpiece clamping plate by straight rod bolts. The upper and lower ends of the pressure sensor are connected to the lower side of the electric displacement stage-linear motion spring mechanism connector and the upper side of the workpiece clamping plate, respectively. The pressure sensor is used to measure the clamping force of the workpiece clamping plate actively pressing the printed part under working conditions. When the active clamping stepper motor rotates, the electric displacement stage will drive the linear motion spring mechanism A, the pressure sensor, and the workpiece clamping plate to move in the vertical direction. When the workpiece clamping plate abuts against the surface of the printed part, the printed part is clamped.

3. The 3D printing device for horizontally pushing and printing workpieces as described in claim 2, characterized in that, The push-clamping mechanism includes: an active clamping mechanism B, a push mechanism, and a workpiece clamping platform; The pushing mechanism is fixed to the overall frame, and the top and bottom of the pushing mechanism are each provided with two or more guide rails arranged along the Z-axis direction; the workpiece clamping platform is a rectangular frame, installed on the guide rails of the pushing mechanism, and slidably engaged with the guide rails, and can move along the length direction of the guide rails, that is, along the Z-axis direction; the active clamping mechanism B is fixed to the top of the workpiece clamping platform, and the active clamping mechanism B and the workpiece clamping platform can move synchronously in the pushing direction of the pushing mechanism; the active clamping mechanism B is used to clamp the printed parts, and the active clamping mechanism B has the same structure as the active clamping mechanism A; and the active clamping mechanism B is located between the two active-passive clamping mechanisms.

4. A 3D printing apparatus for horizontally pushing and printing workpieces as described in any one of claims 1-3, characterized in that, Each roller platform includes: a workpiece clamping platform, platform rollers, and side clamping rollers; The workpiece clamping platform is fixed at the bottom of the overall frame, and several platform rollers are respectively installed on the workpiece clamping platform. Each platform roller can roll, and the axis of the platform roller is set along the X-axis direction. The platform rollers are all higher than the plane where the workpiece clamping platform is located. Several lateral clamping rollers are divided into two sides, both of which are mounted on the roller platform by straight rod bolts. The distance between the two lateral clamping rollers is the same as the width of the printed part, and the axis of each lateral clamping roller is set along the Y-axis.

5. The 3D printing device for horizontally pushing and printing workpieces as described in claim 4, characterized in that, The workpiece clamping platform has elongated holes machined on both sides, with the length of the elongated holes all set along the X-axis. The lateral clamping rollers are installed in the elongated holes by adjusting straight bolts. The distance between the two lateral clamping rollers can be adjusted by adjusting the position of the straight bolts in the elongated holes.

6. A 3D printing apparatus for horizontally pushing and printing workpieces as described in any one of claims 1-3, characterized in that, The horizontal-vertical moving printing platform includes: a printing platform frame, a horizontal X-axis moving mechanism, and a vertical Y-axis moving mechanism; The printing platform frame is mounted on the overall frame, the horizontal X-axis moving mechanism is mounted on the printing platform frame, the vertical Y-axis moving mechanism is mounted on the horizontal X-axis moving mechanism, and the print head is mounted on the vertical Y-axis moving mechanism; the horizontal X-axis moving mechanism is used to drive the print head to move along the X-axis direction, and the vertical Y-axis moving mechanism is used to drive the print head to move along the Y-axis direction.

7. A 3D printing apparatus for horizontally pushing and printing workpieces as described in any one of claims 1-3, characterized in that, Also includes: Laser displacement sensor; A laser displacement sensor is mounted on the overall frame to measure the distance between the print head and the printed part.

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