Buffer device for additive manufacturing
By introducing buffer pads, spring buffers, and limiting structures into the additive manufacturing device, the printing accuracy problem under high impact force and high frequency vibration was solved, achieving higher printing accuracy and device stability.
Patent Information
- Application Number
- CN202520655819.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Existing additive manufacturing buffer devices cannot completely eliminate the impact of vibration and shaking on printing accuracy when faced with large impact forces or high-frequency vibrations, resulting in problems such as dimensional deviations and uneven surfaces in the printed workpieces.
The device employs a structure consisting of a buffer pad assembly, a spring buffer assembly, a limiting assembly, and an electric push rod assembly. The buffer pad disperses the impact force, the spring absorbs the energy, the limiting rod restricts the displacement of the worktable, and the electric push rod adjusts the position of the print head, ensuring the stability and accuracy of the device.
It effectively reduces the impact of external impacts on the internal structure of the device, improves the precision and quality of additive manufacturing, reduces printing defects, and ensures printing accuracy and stability.
Smart Images
Figure CN223814297U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to buffering technical field especially for additive manufacturing's buffering device. BACKGROUND
[0002] Additive manufacturing's buffering device can effectively absorb, disperse impact force, reduce the influence of vibration to relevant equipment, product.
[0003] At present, the buffering device for additive manufacturing is buffered by rubber pad when the device is vibrated and shaken by various external factors, the rubber itself has high elasticity, can have greater elastic deformation when being impacted by external force, thereby absorbing and consuming impact energy, effectively reducing the vibration and impact force received by additive manufacturing equipment, reducing the influence of vibration on printing precision, protecting the precision parts inside the equipment.
[0004] Although the rubber pad has a certain elasticity and can be buffered, but for larger impact force or high frequency vibration, the buffering effect will not be ideal. In some high-precision additive manufacturing process, the influence of vibration and shaking on printing precision cannot be completely eliminated, which will cause the printed workpiece to have size deviation, uneven surface and other problems, therefore, the buffering device for additive manufacturing is proposed to solve the above problems. SUMMARY
[0005] In order to make up for the above shortcomings, the utility model provides a buffering device for additive manufacturing, aiming at improving the problem that vibration and shaking cannot be completely eliminated in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] The buffering device for additive manufacturing comprises a bottom plate and a fixed block, the top of the bottom plate is provided with a buffer pad assembly, the inner side of the fixed block is provided with a plurality of spring buffer assemblies, and the end of the bottom plate is provided with a plurality of limiting assemblies;
[0008] The spring buffer assembly comprises a shell, the shell is fixedly connected to the inner side of the fixed block, a connecting rod is slidably connected to the inner side of the end of the shell, a limiting block is fixedly connected to the bottom of the connecting rod, the limiting block is slidably connected to the inner side of the shell, a spring is fixedly connected to the end of the shell, and the end of the spring is fixedly connected to the inner side of the limiting block;
[0009] As a further description of the above technical scheme:
[0010] The limiting assembly comprises a positioning rod, the positioning rod is fixedly connected to the top of the bottom plate, a positioning block is slidably connected to the inner side of the positioning rod, and a workbench is fixedly connected to the outer side of the end of the positioning block;
[0011] As a further description of the above technical solutions:
[0012] The buffer pad assembly comprises a buffer pad fixedly connected to the outer side of the bottom plate, and a plurality of buffer strips fixedly connected to the outer side of the buffer pad.
[0013] As a further description of the above technical solutions:
[0014] The bottom plate is fixedly connected with a plurality of support columns, and the end of each support column is fixedly connected with a front-back moving assembly.
[0015] As a further description of the above technical solutions:
[0016] The end of each left-right moving assembly is fixedly connected with a connecting block one, and the bottom of the connecting block one is fixedly connected with two electric push rods one.
[0017] As a further description of the above technical solutions:
[0018] The end of each left-right moving assembly is fixedly connected with a connecting block one, and the bottom of the connecting block one is fixedly connected with two electric push rods one.
[0019] As a further description of the above technical solutions:
[0020] The end of each left-right moving assembly is fixedly connected with a connecting block one, and the bottom of the connecting block one is fixedly connected with two electric push rods one.
[0021] As a further description of the above technical solutions:
[0022] The end of each left-right moving assembly is fixedly connected with a connecting block one, and the bottom of the connecting block one is fixedly connected with two electric push rods one.
[0023] The utility model has the advantages of the following beneficial effects:
[0024] 1、The buffer pad and the buffer strip can preliminarily disperse and absorb impact force, and the spring buffer assembly further absorbs a large amount of energy through the compression deformation of the spring, thereby effectively reducing the influence of external impact force on the internal structure of the device, providing a stable working environment for the additive manufacturing process, protecting the equipment and the workpiece being printed, improving the precision and quality of additive manufacturing, and reducing the printing defects caused by vibration.
[0025] 2. The utility model discloses a positioning rod and positioning block can limit the displacement range of workbench, prevent its excessive movement and cause damage, when the displacement is produced in the impact or printing process because of mechanical movement, can ensure that workbench is at the proper position, guarantees the accuracy of additive manufacturing operation, and simultaneously auxiliary buffering process, enhances the stability of device overall structure. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is the three-dimensional schematic view of the buffering device for additive manufacturing provided by the utility model;
[0027] Figure 2 It is the structural schematic view of the positioning block of the buffering device for additive manufacturing provided by the utility model;
[0028] Figure 3 It is the structural schematic view of the print head of the buffering device for additive manufacturing provided by the utility model;
[0029] Figure 4 It is the structural schematic view of the spring of the buffering device for additive manufacturing provided by the utility model.
[0030] LEGEND:
[0031] 1, front and back moving assembly, 2, left and right moving assembly, 3, buffering sponge pad, 4, support column, 5, positioning rod, 6, buffering strip, 7, buffering pad, 8, bottom plate, 9, base, 10, workbench, 11, electric push rod one, 12, connecting block one, 13, fixed block, 14, shell, 15, positioning block, 16, drive motor, 17, connecting block two, 18, disc block, 19, electric push rod two, 20, print head, 21, connecting rod, 22, spring, 23, limit block. DETAILED DESCRIPTION
[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0033] Referring to Figure 1 , Figure 2 and Figure 4 , one embodiment provided by the utility model: the buffering device for additive manufacturing, including bottom plate 8 and fixed block 13, the bottom plate 8 top is provided with buffering pad assembly, and the fixed block 13 inboard is provided with a plurality of spring buffering assemblies, and the bottom plate 8 end is provided with a plurality of limit assemblies;
[0034] The spring buffer assembly includes a housing 14 fixedly connected to the inner side of the fixed block 13, a connecting rod 21 slidingly connected to the end of the housing 14, a limiting block 23 fixedly connected to the bottom of the connecting rod 21, the limiting block 23 slidingly connected to the inner side of the housing 14, a spring 22 fixedly connected to the end of the housing 14, and the end of the spring 22 fixedly connected to the inner side of the limiting block 23. When the impact force is transmitted to the connecting rod 21, the connecting rod 21 will slide into the housing 14. The limiting block 23 at the bottom of the connecting rod 21 slides in the housing 14 along with the sliding of the connecting rod 21, and stretches and compresses the spring 22. The spring 22 deforms under force, converts part of the impact energy into elastic potential energy and stores it, thereby further absorbing and buffering the impact force and reducing the impact of the impact force on the internal structure of the device. The buffer pad assembly includes a buffer pad 7 fixedly connected to the outer side of the bottom plate 8, and a plurality of buffer strips 6 fixedly connected to the outer side of the buffer pad 7. When the device is subjected to external impact force, the buffer pad 7 directly contacts the external impact, and the buffer strips 6 distributed on the outer side of the buffer pad 7 can disperse the impact force, increase the contact area with the impact object, preliminarily absorb part of the energy, and play a role in buffering and shock absorption.
[0035] Referring to Figure 1 and Figure 2 , the limiting assembly includes a positioning rod 5 fixedly connected to the top of the bottom plate 8, a positioning block 15 slidingly connected to the inner side of the positioning rod 5, and a workbench 10 fixedly connected to the end of the positioning block 15. When the workbench 10 is subjected to external force and displaced, the positioning block 15 will slide along the positioning rod 5. The positioning rod 5 and the positioning block 15 limit the displacement range of the workbench 10, prevent the workbench 10 from moving excessively, protect the equipment on the workbench or the workpiece being printed, and also help to maintain the overall stability of the device.
[0036] Referring to Figure 1 , Figure 2 and Figure 3The plurality of support columns 4 are fixedly connected to the outer side of the bottom plate 8 and serve to support the device to maintain a certain height. The plurality of support columns 4 are fixedly connected to the front and rear moving assemblies 1 at the end portions thereof, and the left and right moving assemblies 2 are slidingly connected to the outer sides of the two front and rear moving assemblies 1. The front and rear moving assemblies 1 drive the left and right moving assemblies 2 to move in the front and rear directions, and the left and right moving assemblies 2 can slide the connecting blocks one 12 in the left and right directions, so as to adjust the position of the print head 20 on the plane. The connecting blocks one 12 are fixedly connected to the inner sides of the end portions of the left and right moving assemblies 2, and the two electric push rods one 11 are fixedly connected to the bottom of the connecting blocks one 12. The connecting blocks two 17 are fixedly connected to the end portions of the two electric push rods one 11, and the driving motor 16 is fixedly connected to the outer side of the connecting blocks two 17. The disc block 18 is rotatably connected to the bottom of the connecting blocks two 17, and the output end of the driving motor 16 is fixedly connected to the inner side of the disc block 18. By changing the length of the electric push rod one 11, the height position of the print head 20 can be adjusted to adapt to different printing requirements. The electric push rod two 19 is rotatably connected to the end portion of the inner side of the disc block 18, and the print head 20 is rotatably connected to the inner sides of the two ends of the disc block 18. The end portion of the electric push rod two 19 is fixedly connected to the outer side of the end portion of the print head 20. The electric push rod two 19 drives the print head 20 to rotate around the rotating connection point of the print head 20 and the disc block 18, and further accurately adjusts the angle of the print head 20, so that the print head 20 can be printed at a suitable angle to meet the printing requirements of complex shapes and structures.
[0037] Referring to Figure 1 and Figure 2 The buffer sponge pads 3 are fixedly connected to the bottom of the two ends of the left and right moving assemblies 2, and the connecting blocks one 12 are slidingly connected to the outside of the buffer sponge pads 3. When the connecting blocks one 12 slide on the left and right moving assemblies 2, if a collision or impact occurs, the buffer sponge pads 3 can absorb the collision energy, reduce the rigid collision between the connecting blocks one 12 and the left and right moving assemblies 2, protect the print head 20 and other components, and also help to improve the stability of the device operation, reduce vibration and noise. The fixed blocks 13 are fixedly connected to the outer side of the buffer pads 7, and the plurality of bases 9 are fixedly connected to the bottom of the bottom plate 8. The bases 9 ensure that the device will not shake during the working process, thereby affecting the precision and buffering effect of additive manufacturing.
[0038] Working principle: first, in order to prevent the device from shaking the workbench 10 during 3D printing, the workbench 10 is slidingly connected to the inner side of the positioning rod 5 through the positioning block 15, so as to limit the displacement range of the workbench 10 and prevent it from moving excessively and being damaged. At the same time, the positioning block 15 also assists the buffering process and ensures the stability of the overall structure of the device.
[0039] When the workbench 10 is impacted by external force, the buffer assembly composed of the buffer pad 7 and the buffer strip 6 first contacts the external impact, the buffer strip 6 can disperse the impact force, and the buffer pad 7 absorbs part of the energy, thereby playing a preliminary buffering role. The connecting rod 21 at the bottom of the workbench 10 also slides into the shell 14, drives the limiting block 23 to stretch and compress the spring 22, the spring 22 is deformed under stress to absorb energy, further buffers the impact force, and reduces the influence on the internal structure of the device. The buffer sponge pad 3 at the bottom of the left and right moving assembly 2 at both ends can absorb the collision energy, reduce the rigid collision between the connecting block 12 and the left and right moving assembly 2, protect the print head 20 and other components, and also help to improve the stability of the device operation.
[0040] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.
Claims
1. Buffering device for additive manufacturing, comprising a base plate (8) and a fixing block (13), characterized in that: The bottom plate (8) is provided with a buffer pad assembly on the top, the fixed block (13) is provided with a plurality of spring buffer assemblies on the inner side, and the bottom plate (8) is provided with a plurality of limiting assemblies on the end. The spring buffer assembly comprises a shell (14) fixedly connected on the inner side of the fixed block (13), a connecting rod (21) slidingly connected on the inner side of the end of the shell (14), a limiting block (23) fixedly connected on the bottom of the connecting rod (21), the limiting block (23) slidingly connected on the inner side of the shell (14), a spring (22) fixedly connected on the end of the shell (14), and the spring (22) fixedly connected on the inner side of the end of the limiting block (23).
2. The cushioning device for additive manufacturing of claim 1, wherein: The limiting assembly comprises a positioning rod (5) fixedly connected on the top of the bottom plate (8), a positioning block (15) slidingly connected on the inner side of the positioning rod (5), and a workbench (10) fixedly connected on the outer side of the end of the positioning block (15).
3. The cushioning device for additive manufacturing of claim 1, wherein: The buffer pad assembly comprises a buffer pad (7) fixedly connected on the outer side of the bottom plate (8), and a plurality of buffer strips (6) fixedly connected on the outer side of the buffer pad (7).
4. The cushioning device for additive manufacturing of claim 1, wherein: The bottom plate (8) is fixedly connected with a plurality of support columns (4) on the outer side, and the end of each support column (4) is fixedly connected with a front-back moving assembly (1); the outer sides of two front-back moving assemblies (1) are slidingly connected with a left-right moving assembly (2).
5. The cushioning device for additive manufacturing of claim 4, wherein: The end inner side of the left-right moving assembly (2) is fixedly connected with a connecting block one (12), the bottom of the connecting block one (12) is fixedly connected with two electric push rods one (11), the ends of the two electric push rods one (11) are fixedly connected with a connecting block two (17), the outer side of the connecting block two (17) is fixedly connected with a driving motor (16), the bottom of the connecting block two (17) is rotatably connected with a disc block (18), and the output end of the driving motor (16) is fixedly connected on the inner side of the disc block (18).
6. The cushioning device for additive manufacturing of claim 5, wherein: The end inner side of the disc block (18) is rotatably connected with an electric push rod two (19), the inner sides of the two ends of the disc block (18) are rotatably connected with a print head (20), and the end of the electric push rod two (19) is fixedly connected on the outer side of the end of the print head (20).
7. The cushioning device for additive manufacturing of claim 5, wherein: The bottoms of the two ends of the left-right moving assembly (2) are fixedly connected with a buffer sponge pad (3), and the connecting block one (12) is slidingly connected on the outside of the buffer sponge pad (3).
8. The cushioning device for additive manufacturing of claim 1, wherein: The fixed block (13) is fixedly connected on the outer side of the buffer pad (7), and the bottom plate (8) is fixedly connected with a plurality of bases (9) on the bottom.