Device for flushing channel in pipe wall of 3D printing piece
By using a ring-shaped clip to form a sealed channel on the outer wall of the 3D printed part, and using high-pressure water flow to flush the channel, the problem of poor cleaning effect in the existing technology is solved, and the effect of efficiently cleaning the channel inside the tube wall of the 3D printed part is achieved.
Patent Information
- Application Number
- CN202520403145.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing technologies are insufficient for efficiently cleaning metal powder residues in the narrow, curved channels inside the tube walls of 3D printed parts, resulting in poor cleaning performance and low efficiency.
Design a device that includes a ring clamp and a seal. A semi-circular ring is fitted onto the outer wall of a 3D printed part to form a sealed channel. High-pressure water is used to flush the channel to ensure pressure and efficiency.
It improves the flushing effect and efficiency of the channels inside the tube wall of 3D printed parts, ensuring that excess material in the channels can be discharged smoothly and avoiding the problem of incomplete cleaning.
Smart Images
Figure CN223801550U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to 3D printing production technical field especially is a kind of device for 3D printing piece pipe wall inner channel flushing. BACKGROUND
[0002] 3D printing technology is widely used in aerospace field. Complex structure metal parts can be manufactured by 3D printing, and the manufacturing cycle is short, which avoids the risk caused by multi-process machining and welding. However, the channel of 3D printing part is long and curved, and there is residual metal powder in the channel during 3D printing (the material of 3D printing part is high-temperature alloy), so it needs to be repeatedly washed with positive and negative pressure.
[0003] The prior art often uses high-pressure water flow to clean 3D printing parts, and the residual powder on the outer surface of the 3D printing part is easily cleaned, but the inner channel of the pipe wall of the part is long and curved, and it is not easy to clean the excess material, so the cleaning effect is poor and the efficiency is low. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model solves the technical problems existing in the prior art.
[0005] To solve the above technical problems, the utility model provides a device for flushing the inner channel of the pipe wall of 3D printing part, which comprises:
[0006] The circular ring clamping piece is formed by butting two semicircular rings, and the two sides of the semicircular ring are provided with sealing grooves;
[0007] Two sealing elements are respectively installed in the sealing grooves;
[0008] The joint is arranged on the circular ring clamping piece, and the joint penetrates the wall thickness of the circular ring clamping piece;
[0009] Among them, the semicircular ring is sleeved on the outer wall of the 3D printing part, and the two semicircular rings are detachably connected; through the sealing element, a closed channel is formed between the inner wall of the semicircular ring sleeve and the outer wall of the 3D printing part; the joint, the closed channel and the inner channel of the pipe wall of the 3D printing part are communicated.
[0010] In one embodiment of the utility model, the outer wall of the two ends of the semicircular ring is provided with a connecting part, and the connecting hole is arranged on the connecting part; the connecting holes of the two semicircular rings are detachably connected by bolts.
[0011] In one embodiment of the utility model, the two semicircular rings are butted, the end surfaces of the two semicircular rings are in contact, and the connecting parts of the two semicircular rings have a gap.
[0012] In one embodiment of the utility model, the joint is a plurality of, and the plurality of joints are arranged on the circular ring clamping piece at equal intervals in the circumferential direction.
[0013] In one embodiment of the utility model, the inlet of the inner channel of the pipe wall is communicated with the closed channel, and the outlet of the inner channel of the pipe wall is communicated with the sewage collector.
[0014] In one embodiment of the utility model, the outlet of the inner channel of the pipe wall is wrapped with white cloth.
[0015] In one embodiment of the utility model, the two sides of the semicircle ring are provided with limiting edges extending to the inside and protruding from the inner wall, and the side wall of the 3D printed part is arranged at the limiting edge.
[0016] In one embodiment of the utility model, the two sides of the ring clamping piece are respectively provided with a plurality of profiling grooves, and the profiling grooves are arranged along the circumference of the ring clamping piece.
[0017] In one embodiment of the utility model, the corners of the ring clamping piece in contact with the 3D printed part are all rounded.
[0018] In one embodiment of the utility model, the sealing piece is an O-shaped ring.
[0019] In one embodiment of the utility model, the ring clamping piece is made of stainless steel.
[0020] The above technical scheme of the utility model has the following advantages compared with the prior art:
[0021] The device for flushing the inner channel of the pipe wall of the 3D printed part disclosed by the utility model is characterized in that two semicircle rings are sleeved on the 3D printed part, and then the two semicircle rings are fixed, so that the inner wall of the semicircle ring sleeve and the outer wall of the 3D printed part form a closed channel through the sealing piece. In this way, after the joint is connected to the high-pressure water flow equipment, the high-pressure water flow enters the channel from the joint and the closed channel, and supplies high-pressure water flow to the inner channel of the pipe wall of the 3D printed part, so that the inner channel of the pipe wall can be flushed, and the excess material in the inner channel of the pipe wall can flow out with the water flow. The setting of the closed channel can ensure the pressure of the flushing process, and further improve the flushing effect and efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to make the content of the utility model more easily understood, the utility model will be further described in detail below according to the specific embodiments of the utility model and in conjunction with the drawings, in which:
[0023] Figure 1 is a structural schematic view of a device for flushing the inner channel of the pipe wall of the 3D printed part in the preferred embodiment of the utility model;
[0024] Figure 2 is Figure 1 the front view of the device for flushing the inner channel of the pipe wall of the 3D printed part.
[0025] Figure 3 is Figure 1 a schematic view of the device for flushing the inner channel of the pipe wall of the 3D printed part and the 3D printed part;
[0026] Description of the drawings: 100, round ring clamping piece; 110, half round ring; 111, limiting edge; 112, profiling groove; 120, sealing groove; 130, connecting part; 140, bolt; 150, gap;
[0027] 200, sealing piece;
[0028] 300, 3D printed part; 310, inner channel of pipe wall; 311, inlet; 312, outlet;
[0029] 400, joint;
[0030] 500, closed channel. DETAILED DESCRIPTION
[0031] The present application will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it. The embodiments are not intended to limit the present application.
[0032] Referring to Figures 1-3 The embodiment of the present application provides a device for flushing the inner channel of the pipe wall of a 3D printed part, comprising:
[0033] The round ring clamping piece 100 is formed by butt joint of two half round rings 110; the two sides of the half round ring 110 are provided with sealing grooves 120; the round ring clamping piece 100 is made of 304 stainless steel material.
[0034] Two sealing pieces 200 are respectively installed in the sealing grooves 120; the sealing piece 200 is an O-ring. In some embodiments, the inner diameter of the sealing piece 200 is 5-10mm smaller than the outer diameter of the 3D printed part 300, so that the sealing piece 200 can be tightly fixed on the 3D printed part 300 and will not be loose.
[0035] The joint 400 is arranged on the round ring clamping piece 100, and the joint 400 penetrates the wall thickness of the round ring clamping piece 100;
[0036] The half round ring 110 is sleeved on the outer wall of the 3D printed part 300, and the two half round rings 110 are detachably connected; the inner wall of the half round ring 110 and the outer wall of the 3D printed part 300 form a closed channel 500 through the sealing piece 200; the joint 400, the closed channel 500 and the inner channel 310 of the pipe wall of the 3D printed part 300 are communicated.
[0037] Specifically, two half-rings 110 are sleeved on the 3D printed part 300, and then the two half-rings 110 are fixed, so that the inner wall of the half-ring 110 sleeve and the outer wall of the 3D printed part 300 form a sealed channel 500 through the sealing member 200. In this way, after the joint 400 is connected to the high-pressure water flow device, the high-pressure water flow enters the channel from the joint 400 and the sealed channel 500, and supplies high-pressure water flow to the pipe wall inner channel 310 of the 3D printed part 300, so as to be able to flush the pipe wall inner channel 310, so that the excess in the pipe wall inner channel 310 flows out with the water flow. Due to the arrangement of the sealed channel 500, the pressure of the flushing process can be ensured, and the flushing effect and efficiency are further improved.
[0038] Further, the outer wall of the two ends of the half-ring 110 is provided with a connecting portion 130, and the connecting hole is arranged on the connecting portion 130; the connecting holes of the two half-rings 110 are detachably connected through the bolt 140. Specifically, the present embodiment facilitates the quick installation and disassembly of the ring clamping member 100 and the 3D printed part 300, and improves the flushing efficiency.
[0039] Further, the two half-rings 110 are connected, the end surfaces of the two half-rings 110 are in contact, and the connecting portions 130 of the two half-rings 110 have a gap 150. In some embodiments, the gap 150 is 0.8mm. For example, 0.4mm is milled on the end surface where the two connecting portions 130 are connected to each other. In this way, when the end surfaces of the two half-rings 110 are in contact to realize the connection, the connecting portions 130 of the two half-rings 110 have a predetermined gap 150. Thus, on the one hand, it can ensure that the two half-rings 110 are in close contact to form a sealed channel 500, and on the other hand, it can prevent repeated tightening from deforming the ring clamping member 100, resulting in inconsistent diameters of the ring clamping member 100.
[0040] Further, the joint 400 is a plurality of joints, and the plurality of joints 400 are arranged on the ring clamping member 100 at equal intervals in the circumferential direction. In some embodiments, one pipe wall inner channel 310 corresponds to one joint 400, and the joint 400 is arranged close to the pipe wall inner channel 310. Specifically, because the pipe wall inner channel 310 of the 3D printed part 300 is a plurality of pipe wall inner channels 310, the plurality of pipe wall inner channels 310 are uniformly distributed. Therefore, the present embodiment adaptively arranges a plurality of joints 400, so as to be able to more evenly and quickly flush water into the pipe wall inner channel 310 (avoiding that the high-pressure water flow flows in the sealed channel 500 and then enters the pipe wall inner channel 310), thereby ensuring the pressure of the flushing, and improving the flushing effect and efficiency.
[0041] Further, the application also comprises a sewage collector (not shown in the figure); the inlet 311 of the pipe wall channel 310 is communicated with the closed channel 500, and the outlet 312 of the pipe wall channel 310 is communicated with the sewage collector. Specifically, in the flushing process, the sewage mixed with metal powder is uniformly flowed into the sewage collector for centralized collection and centralized treatment.
[0042] Further, the outlet 312 of the pipe wall channel 310 is wrapped with a white cloth (not shown in the figure). Specifically, the white cloth is arranged at the outlet 312 of the pipe wall channel 310, so that the flushing quality can be checked through the white cloth (if there is residual metal powder on the white cloth, it is considered that the flushing is not clean; if there is no powder residue on the white cloth, it is considered that the flushing is clean).
[0043] Further, the two sides of the semi-circular ring 110 are provided with limiting edges 111 extending to the inside and protruding from the inner wall thereof, and the side wall of the 3D printed part 300 is arranged at the limiting edge 111. Specifically, the limiting edge 111 of the embodiment can limit the 3D printed part 300, so as to avoid the displacement of the 3D printed part 300 in the axial direction in the circular ring clamping piece 100 during the flushing process, thereby further ensuring the efficiency and effect of the flushing. In some embodiments, the limiting edge 111 protrudes 2mm from the inner wall of the semi-circular ring 110.
[0044] Further, the two sides of the circular ring clamping piece 100 are respectively provided with a plurality of profiled grooves 112, and the plurality of profiled grooves 112 are arranged at intervals along the circumference of the circular ring clamping piece 100. In some embodiments, the profiled groove 112 is arranged on the limiting edge. Specifically, some components of the 3D printed part 300 are clamped in the profiled groove 112, which can limit the 3D printed part 300, so as to avoid the movement of the 3D printed part 300 relative to the circular ring clamping piece 100 in the circumferential direction during the flushing process; on the other hand, the 3D printed part 300 can be avoided.
[0045] Further, the edges in contact with the 3D printed part 300 in the circular ring clamping piece 100 are all chamfered. Specifically, the chamfering processing method is adopted in the embodiment, which can avoid the bruising of the 3D printed part 300.
[0046] The process of flushing the 3D printed part 300 by using the present application is as follows: first, put two sealing members 200 on the appropriate position of the 3D printed part 300 (ensure that the sealing member 200 completely enters the sealing groove 120), then install two half-rings 110 on the 3D printed part 300, and fix the two half-rings 110 by using the bolts 140, so as to form a closed channel 500 (make the joint of the two half-rings completely fit to achieve the sealing effect. If water leaks at the joint position of the two half-rings 110, prepare two rubber pads to plug into the joint position of the two half-rings 110). Then connect the high-pressure water flow with the connector 400, and then the high-pressure water flow enters the pipe wall inner channel 310, and by continuously adjusting the pressure to control the different water flow, so as to better carry out the excess (set different pressures and times to repeatedly flush). Judge whether the flushing is qualified by the white cloth at the outlet 312 of the 3D printed part 300. After the flushing is completed, the device is disassembled with the 3D printed part 300, the water in the pipe wall inner channel 310 is blown dry by using clean compressed air, then the part is placed in the oven for drying, to prevent rust. The present application can meet the needs of removing the excess in the channel of the 3D printed part 300.
[0047] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.
Claims
1. A device for flushing of a channel in a tube wall of a 3D printed piece, characterized in that: The utility model relates to a kind of 3D printing pipe sealing device, including: A circular ring clamp piece is formed by two half circular rings butt joint;Two sides of the half circular ring are provided with sealing grooves; Two sealing elements are respectively installed in the sealing grooves; A joint is provided on the circular ring clamp piece, and the joint penetrates the wall thickness of the circular ring clamp piece; Wherein, the half circular ring is sleeved on the outer wall of 3D printing piece, and two half circular rings are detachably connected;Through the sealing element, the inner wall of the half circular ring sleeve and the outer wall of the 3D printing piece form a closed channel;The joint, the closed channel and the pipe wall inner channel of the 3D printing piece are communicated.
2. The device for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 1, characterized in that: The outer wall of both ends of the half circular ring is provided with a connecting part, and the connecting hole is provided on the connecting part;The connecting holes of two half circular rings are detachably connected by bolts.
3. The device for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 2, characterized in that: Two half circular rings butt joint, the end surface of two half circular rings contacts, and there is a gap between the connecting parts of two half circular rings.
4. The apparatus for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 1, characterized in that: The joint is multiple, and multiple joints are equidistantly spaced on the circular ring clamp piece in circumferential direction.
5. The apparatus for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 1, characterized in that: It also includes a sewage collector;The inlet of the pipe wall inner channel is communicated with the closed channel, and the outlet of the pipe wall inner channel is communicated with the sewage collector.
6. The device for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 5, characterized in that: White cloth is wrapped around the outlet of the pipe wall inner channel.
7. The apparatus for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 1, characterized in that: Two sides of the half circular ring are provided with limiting edges extending to its interior and protruding from its inner wall, and the side wall of the 3D printing piece is arranged at the limiting edge.
8. The apparatus for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 1, characterized in that: Two sides of the circular ring clamp piece are respectively provided with multiple profiled grooves, and multiple profiled grooves are spaced along the circumferential direction of the circular ring clamp piece.
9. The apparatus for flushing of the internal channel of the tube wall of the 3D printed piece according to claim 1, characterized in that: The corners of the circular ring clamp piece that contact the 3D printing piece are all chamfered.
10. The apparatus for flushing of an internal channel of a tube wall of a 3D printed piece according to claim 1, characterized in that: The circular ring clamp piece is made of stainless steel.