Fixing clamp for 3D printing

Abstract

The utility model relates to a fixing clamp for 3D printing, which comprises a fixing base and a water cooling plate, and the water cooling plate is detachably connected with the fixing base. The water cooling plate is arranged on the fixing base, the face, back on to the fixing base, of the water cooling plate is used for fixing a printing substrate, a water inlet and a water outlet which are communicated with the outside are formed in the fixing base, a cooling water channel is formed between the water cooling plate and the fixing base, and the cooling water channel is communicated with the water inlet and the water outlet. The fixing clamp for 3D printing provided by the utility model has a better heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing fixing equipment technology, specifically to a fixing fixture for 3D printing. Background Technology

[0002] In 3D printing, the printing substrate (such as a metal printing substrate) usually refers to the initial surface that supports the part to be formed during the printing process. The way it is fixed directly affects the printing quality and success rate. If the substrate shakes or vibrates during the printing process, it is very likely to cause deviations in the final shape of the product, or even cause the product to fail to print.

[0003] Therefore, existing technologies generally employ dedicated fixtures to pre-fix the printing substrate. For example, Chinese Patent CN220129536U discloses a 3D printing fixture that uses clamping blocks on both sides of the substrate to press and fix it during use. While this method is convenient for adjustment, it still has certain drawbacks. Specifically, during 3D printing, especially in metal printing (such as SLM) or high-temperature material FDM printing, the substrate and fixture experience continuous heating, leading to temperature accumulation. If timely heat dissipation is not possible, the substrate may warp at high temperatures, affecting the final printed product.

[0004] Therefore, it is necessary to improve upon existing technologies and provide a fixture for 3D printing that has better heat dissipation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a fixture for 3D printing with improved heat dissipation.

[0006] To solve the above-mentioned technical problems, the technical solution used in this utility model is: a fixing fixture for 3D printing, including a fixing base and a water-cooled plate, wherein the water-cooled plate is detachably connected to the fixing base; the side of the water-cooled plate facing away from the fixing base is used to fix the printing substrate; the fixing base is provided with an inlet and an outlet communicating with the outside; a cooling water channel is formed between the water-cooled plate and the fixing base, and the cooling water channel is connected to the inlet and the outlet.

[0007] Preferably, the side of the water-cooled plate facing the fixed base has a groove, and when the water-cooled plate is connected to the fixed base, the groove and the fixed base form the cooling water channel.

[0008] Preferably, the groove has multiple channels, which are spaced apart, and each groove extends along the circumferential direction of the water-cooling plate.

[0009] Preferably, the water-cooled plate is further provided with a first connecting part, and the fixed base is provided with a second connecting part that cooperates with the first connecting part. The fixed base and the water-cooled plate are detachably connected through the first connecting part and the second connecting part.

[0010] Preferably, the first connecting part is a first positioning hole, which is provided through the thickness direction of the water-cooled plate. The second connecting part is a second positioning hole. The first positioning hole and the second positioning hole are fixed together by bolts. Multiple first positioning holes and multiple second positioning holes are provided. The multiple first positioning holes and multiple second positioning holes are respectively arranged in an array along the circumferential direction of the water-cooled plate and the fixed base.

[0011] Preferably, the fixed base includes a base body and a cover body, the water inlet and the water outlet are both provided on the base body, and the water-cooling plate is connected to the base body; the cover body is provided with openings at both ends, the cover body is sleeved on the outside of the water-cooling plate, and is fixed to the base body.

[0012] Preferably, the inner wall of one of the cover and the seat is provided with an internal thread, and the outer wall of the other is provided with an external thread, and the cover and the seat are threadedly connected.

[0013] Preferably, the base body is further provided with a plurality of spaced mounting holes, which are arranged through the thickness direction of the base body, and the base body can be fixed to the worktable through the mounting holes.

[0014] Preferably, both the fixed base and the water-cooling plate are made of stainless steel.

[0015] The main advantages of this utility model are: the fixture for 3D printing provided by this utility model has better heat dissipation. Attached Figure Description

[0016] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of the base body in this utility model;

[0018] Figure 2 This is a first-view structural schematic diagram of the water-cooled plate in this utility model;

[0019] Figure 3 This is a schematic diagram of the water-cooled plate structure from a second perspective in this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the cover body in this utility model.

[0021] In the diagram: base 1, water inlet 10, water outlet 11, second positioning hole 12, external thread 13, mounting hole 14, water cooling plate 2, groove 20, first positioning hole 21, cover 3, internal thread 30, quick release slot 31. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0023] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] refer to Figure 1-4 This invention provides a fixture for 3D printing, suitable for laser melting (SLM) 3D printing. The fixture includes a fixed base and a water-cooled plate 2, which is detachably connected to the fixed base. The side of the water-cooled plate 2 facing away from the fixed base is used to fix the printing substrate. The fixed base is provided with an inlet 10 and an outlet 11 communicating with the outside. A cooling channel is formed between the water-cooled plate 2 and the fixed base. When the water-cooled plate 2 is connected to the fixed base, the cooling channel communicates with the inlet 10 and the outlet 11. Specifically, the inlet 10 and outlet 11 of the fixed base can be connected to an external circulating water pump to draw external coolant (such as natural water or refrigerant) through the inlet 10, allowing it to circulate within the cooling channel and then be discharged through the outlet 11, achieving a circulating effect. During the flow of the coolant through the cooling channel, the heat from the printing substrate during 3D printing can be conducted to the coolant through the water-cooled plate 2. The coolant absorbs some of the heat and is then discharged, thus achieving a heat dissipation effect.

[0026] refer to Figure 1-4In a preferred embodiment, a groove 20 is provided on the side of the water-cooled plate 2 facing the fixed base. When the water-cooled plate 2 is connected to the fixed base, a cooling water channel is formed between the groove 20 and the fixed base. By providing a groove 20 on the back side of the water-cooled plate 2 (i.e., the side facing the fixed base), when the water-cooled plate 2 and the fixed base are assembled, the plane of the fixed base will close the opening of the groove 20, and the two together form a sealed cooling water channel, thereby realizing the flow of fluid (cooling water) in the cooling water channel.

[0027] refer to Figure 1-4 In a preferred embodiment, there are multiple grooves 20, which are spaced apart and each groove 20 extends along the circumferential direction of the water-cooling plate 2. For example, the multiple grooves 20 are distributed in a ring on the back of the water-cooling plate 2, which can increase the area of ​​the cooling water channel, extend the flow path of the coolant, avoid local overheating during 3D printing, and improve the overall heat dissipation uniformity.

[0028] refer to Figure 1-4 In a preferred embodiment, the water-cooled plate 2 is further provided with a first connecting portion, and the fixed base is provided with a second connecting portion that cooperates with the first connecting portion. The fixed base and the water-cooled plate 2 are detachably connected through the first connecting portion and the second connecting portion. The detachable configuration facilitates the separation of the water-cooled plate 2 and the fixed base, making it easier to clean the cooling water channels or replace damaged parts, thus reducing subsequent maintenance costs.

[0029] refer to Figure 1-4 In a further preferred embodiment, the first connecting part is a first positioning hole 21, which is provided through the thickness direction of the water-cooled plate 2. The second connecting part is a second positioning hole 12. The first positioning hole 21 and the second positioning hole 12 are fixed together by bolts. Multiple first positioning holes 21 and multiple second positioning holes 12 are provided, and the multiple first positioning holes 21 and multiple second positioning holes 12 are respectively arranged in an array along the circumferential direction of the water-cooled plate 2 and the fixed base. For example, if six first positioning holes 21 are provided on the fixed base, then correspondingly, six second positioning holes 12 are also provided on the water-cooled plate 2. The positions of the first positioning holes 21 and the second positioning holes 12 are corresponding. The first positioning holes 21 and the second positioning holes 12 can be through holes or threaded holes. When the fixed base and the water-cooled plate 2 are assembled, they can be fastened by bolts passing through the first positioning holes 21 and the second positioning holes 12 to achieve a rigid connection between the two.

[0030] refer to Figure 1-4In a preferred embodiment, the fixing base includes a base body 1 and a cover body 3. An inlet 10 and an outlet 11 are both located on the base body 1, and the water-cooling plate 2 is connected to the base body 1. The cover body 3 has openings at both ends and is fitted over the outside of the water-cooling plate 2, and fixed to the base body 1. In this embodiment, the cover body 3 is generally cylindrical, fitted over the outside of the water-cooling plate 2, and fixed to the base body 1, thus forming a protective outer shell. Simultaneously, it can also firmly clamp the printing substrate. That is, during assembly, the base body 1 is first fixed to the worktable, then the side of the water-cooling plate 2 with cooling channels is assembled onto the base body 1 (facing downwards means towards the base body 1), then the printing substrate can be fixed to the front of the water-cooling plate 2, and finally the cover body 3 is fitted over it and fixed to the base body 1, thus forming a clamping effect of the cover body 3 on the water-cooling plate 2 and the printing substrate, further improving the stability.

[0031] refer to Figure 1-4 In a further preferred embodiment, the inner wall of one of the cover 3 and the base 1 is provided with an internal thread 30, and the outer wall of the other is provided with an external thread 13, and the cover 3 and the base 1 are threadedly connected. This threaded connection allows for quick installation between the cover 3 and the base 1 without the need for other tools, making it more convenient. In other embodiments, the top of the cover 3 has a quick-release slot 31, which also allows operators to quickly tighten or loosen the cover 3 using tools (such as a wrench).

[0032] refer to Figure 1-4 In a preferred embodiment, the base 1 is also provided with a plurality of spaced mounting holes 14, which are arranged through the thickness of the base 1. The base 1 can be fixed to the worktable through the mounting holes 14.

[0033] In a preferred embodiment, both the mounting base and the water-cooling plate 2 are made of stainless steel, such as 304 stainless steel, which can prevent rust and reduce costs, making it more economical and practical.

[0034] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A fixture for 3D printing, characterized in that, It includes a fixed base and a water-cooled plate, the water-cooled plate being detachably connected to the fixed base; the side of the water-cooled plate facing away from the fixed base is used to fix the printing substrate; the fixed base is provided with a water inlet and a water outlet communicating with the outside; a cooling water channel is formed between the water-cooled plate and the fixed base, and the cooling water channel is connected to the water inlet and the water outlet.

2. The fixture for 3D printing as described in claim 1, characterized in that, The water-cooled plate has a groove on the side facing the fixed base. When the water-cooled plate is connected to the fixed base, the cooling water channel is formed between the groove and the fixed base.

3. The fixture for 3D printing as described in claim 2, characterized in that, The groove has multiple channels, which are spaced apart, and each groove extends along the circumferential direction of the water-cooled plate.

4. The fixture for 3D printing as described in claim 1, characterized in that, The water-cooled plate is also provided with a first connecting part, and the fixed base is provided with a second connecting part that cooperates with the first connecting part. The fixed base and the water-cooled plate are detachably connected through the first connecting part and the second connecting part.

5. The fixture for 3D printing as described in claim 4, characterized in that, The first connecting part is a first positioning hole, which is provided through the thickness direction of the water-cooled plate. The second connecting part is a second positioning hole. The first positioning hole and the second positioning hole are fixed by bolts. There are multiple first positioning holes and multiple second positioning holes. The multiple first positioning holes and multiple second positioning holes are respectively arranged in an array along the circumferential direction of the water-cooled plate and the fixed base.

6. The fixture for 3D printing as described in claim 1, characterized in that, The fixed base includes a base body and a cover body. The water inlet and water outlet are both provided on the base body, and the water-cooling plate is connected to the base body. The cover body is open at both ends, and the cover body is sleeved on the outside of the water-cooling plate and fixed to the base body.

7. The fixture for 3D printing as described in claim 6, characterized in that, The cover and the base are provided with internal threads on the inner wall of one of them and external threads on the outer wall of the other, and are connected by threads.

8. The fixture for 3D printing as described in claim 6, characterized in that, The base is also provided with a plurality of spaced mounting holes, which are arranged through the thickness of the base, and the base can be fixed to the worktable through the mounting holes.

9. The fixture for 3D printing as described in claim 1, characterized in that, Both the fixed base and the water-cooling plate are made of stainless steel.

Images