Tool for detecting water flow of channel in pipe wall of 3D printing piece

Abstract

The utility model relates to a tool for detecting the water flow of a channel in the pipe wall of a 3D printed piece, and the tool comprises a fixed ring which comprises a first fixed ring and a second fixed ring which are coaxially disposed through a plurality of bolts. The sliding block is slidably connected between the first fixing ring and the second fixing ring, and a threaded through hole extending in the diameter direction of the first fixing ring is formed in the sliding block; and the water inlet adapter pipe is screwed into the threaded through hole through an external thread, and a gasket is arranged at the end, close to the inner side of the first fixing ring, of the water inlet adapter pipe. The detection tool can be conveniently fixed on the surface of a workpiece through the fixing ring structures, and the position of the water inlet adapter on the workpiece can be freely adjusted through the sliding block between the two fixing rings, so that the detection efficiency can be improved; the water inlet adapter tube is in butt joint with the liquid injection opening in the workpiece through the threaded connection structure, butt joint and separation are simple and reliable, meanwhile, the gasket is arranged to ensure the sealing performance during butt joint, and the accuracy of the detection result can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of detection tooling, in particular to a 3D printed part pipe wall inner groove water flow detection tooling. Background Art

[0002] At present, 3D printing technology is widely used in the aerospace field. 3D printing technology can be used to manufacture metal parts with complex structures. Its one-piece molding manufacturing cycle is short and it can avoid the risk of product defects caused by multiple machining, welding and other processes.

[0003] A cylindrical workpiece formed by 3D printing and having multiple grooves inside has a plurality of liquid injection ports arranged circumferentially and connected to the grooves on its circumferential surface. Before use, the workpiece needs to be injected with water of a predetermined pressure into each liquid injection port through a water injection device and detect whether the water flow rate at the output end of each groove meets the requirements within a predetermined time. At present, when connecting the water injection device and the liquid injection port, it is necessary to connect the connecting pipe to each liquid injection port through an external connecting piece. Since the surface of the workpiece is an arc, it is difficult to connect and fix, and the connection process is cumbersome, requiring repeated installation and disassembly, which affects the efficiency of the detection. At the same time, it is difficult to ensure the sealing of the connection position, which will affect the accuracy of the detection result. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that when connecting the water injection equipment and the liquid injection port of the workpiece, it is necessary to connect the connecting pipe to each liquid injection port through an external connecting piece. Since the surface of the workpiece is arc-shaped, it is more difficult to connect and fix, and the connection process is cumbersome, requiring repeated installation and disassembly, which affects the efficiency of detection. At the same time, it is difficult to ensure the sealing of the connection position, which will affect the accuracy of the detection results.

[0005] In order to solve the above technical problems, the utility model provides a 3D printed pipe wall inner groove water flow detection tool, comprising:

[0006] A fixing ring, the fixing ring comprising a first fixing ring and a second fixing ring arranged coaxially, the first fixing ring and the second fixing ring are arranged at intervals and connected to each other by a plurality of bolts;

[0007] A slider, wherein the slider is slidably connected between the first fixing ring and the second fixing ring, and the slider is provided with a threaded through hole extending along the diameter direction of the first fixing ring / the second fixing ring;

[0008] A water inlet adapter pipe is screwed into the threaded through hole via an external thread, and a gasket is provided at one end of the water inlet adapter pipe close to the inner side of the first fixing ring / the second fixing ring.

[0009] In an embodiment of the present invention, a first annular groove and a second annular groove are respectively formed on opposite surfaces of the first fixing ring and the second fixing ring, and two ends of the sliding block are respectively slidably connected to the first annular groove and the second annular groove.

[0010] In one embodiment of the utility model, connecting parts matching the shapes of the first annular groove and the second annular groove are respectively provided at both ends of the slider, and the slider is slidably connected to the first annular groove and the second annular groove respectively through the connecting parts.

[0011] In one embodiment of the utility model, the first fixing ring is provided with a plurality of first bolt holes, and the second fixing ring is provided with a plurality of second bolt holes which are coaxial with the first bolt holes respectively. The coaxial first bolt holes and second bolt holes form a plurality of bolt hole groups, and a plurality of bolts connect the first fixing ring and the second fixing ring at each of the bolt hole groups respectively.

[0012] In one embodiment of the utility model, the water inlet adapter is a round tube, the external thread is arranged on the circumferential surface of the water inlet adapter, and a groove is coaxially arranged at one end of the water inlet adapter close to the inner side of the first fixing ring / second fixing ring, and the gasket is embedded in the groove.

[0013] In an embodiment of the present utility model, one end of the water inlet transfer pipe away from the groove is connected with a pipe nozzle.

[0014] In an embodiment of the present invention, the gasket is an annular gasket, and the gasket is made of polytetrafluoroethylene.

[0015] In one embodiment of the utility model, the first fixing ring and the second fixing ring are both circular ring structures composed of two semicircular rings, the two ends of the two semicircular rings are butt-jointed with each other, and a fixing seat is respectively arranged at the two ends of the two semicircular rings, and the two fixing seats opposite to each other between the two semicircular rings are connected to each other by connecting bolts.

[0016] In an embodiment of the present invention, the fixing seat is arranged on a surface of the first fixing ring and the second fixing ring which are away from each other.

[0017] In an embodiment of the present invention, the first fixing ring, the second fixing ring, the sliding block and the water inlet transfer pipe are all made of stainless steel.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses a 3D printed pipe wall inner groove water flow detection tool, including a fixing ring, which includes a first fixing ring and a second fixing ring coaxially connected by a plurality of bolts; a slider, which is slidably connected between the first fixing ring and the second fixing ring, and a threaded through hole extending along the diameter direction of the first fixing ring is provided on the slider; a water inlet transfer pipe, which is screwed into the threaded through hole by an external thread, and a gasket is provided at one end of the water inlet transfer pipe close to the inner side of the first fixing ring. The detection tool can be conveniently fixed on the surface of the workpiece through the fixing ring structure, and the position of the water inlet transfer pipe on the workpiece can be freely adjusted by the slider between the two fixing rings, which can improve the efficiency of detection; and the water inlet transfer pipe is connected to the injection port on the workpiece through a threaded connection structure, and the connection and separation are simple and reliable. At the same time, a gasket is provided to ensure the sealing during connection, which can ensure the accuracy of the detection result. The structure of the entire detection tool is simple, and it is convenient to install and maintain, which is suitable for practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0021] Figure 1 It is a stereoscopic diagram of a 3D printed pipe wall inner groove water flow detection tooling according to a preferred embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of a 3D printed pipe wall inner groove water flow detection tooling according to a preferred embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a semicircular ring of a 3D printed pipe wall inner groove water flow detection tooling in a preferred embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the water inlet transfer pipe of the 3D printed pipe wall inner groove water flow detection tooling of the preferred embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a slider of a 3D printed pipe wall inner groove water flow detection tooling according to a preferred embodiment of the utility model.

[0026] Explanation of the reference numerals in the drawings in the specification: 1. fixing ring; 11. first fixing ring; 111. first annular groove; 12. second fixing ring; 121. second annular groove; 13. bolt; 14. semicircular ring; 15. fixing seat; 2. slider; 21. threaded through hole; 3. water inlet transfer pipe; 31. groove; 4. gasket. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0028] Embodiment 1

[0029] Reference Figure 1-Figure 5 As shown, the utility model is a 3D printed pipe wall inner groove water flow detection tool, comprising:

[0030] A fixing ring 1, the fixing ring 1 comprises a first fixing ring 11 and a second fixing ring 12 which are coaxially arranged, the first fixing ring 11 and the second fixing ring 12 are arranged at intervals and connected to each other by a plurality of bolts 13;

[0031] The slider 2 is slidably connected between the first fixing ring 11 and the second fixing ring 12. The slider 2 is provided with a threaded through hole 21 extending along the diameter direction of the first fixing ring 11 / the second fixing ring 12;

[0032] The water inlet transfer pipe 3 is screwed into the threaded through hole 21 through an external thread, and a gasket 4 is provided at one end of the water inlet transfer pipe 3 close to the inner side of the first fixing ring 11 / the second fixing ring 12 .

[0033] Usage process: sleeve the first fixing ring 11 and the second fixing ring 12 onto the circumferential surface of the workpiece, adjust the spacing between the two fixing rings and connect the slider 2 between the two fixing rings so that the slider 2 can slide smoothly, then fix the spacing between the two fixing rings by means of the bolt 13, and then tighten the connecting bolts between the semicircular rings 14 of the first fixing ring 11 and the second fixing ring 12 to fix the two fixing rings to the predetermined positions on the circumferential surface of the workpiece; screw the water inlet transfer pipe 3 into the threaded through hole 21 of the slider 2 (the side of the water inlet transfer pipe 3 provided with the gasket 4 faces inward), then slide the slider 2 so that the water inlet transfer pipe 3 is aligned with the target injection port, and then screw the water inlet transfer pipe 3 so that the end provided with the gasket 4 is pressed tightly against the circumferential surface of the workpiece, and finally connect the nozzle of the water inlet transfer pipe 3 with the output port of the water injection equipment with a metal hose; set the output pressure of the water injection equipment and start timing, and then measure the water flow at the output end of the corresponding groove of the workpiece, and after the measurement is completed, loosen the water inlet transfer pipe 3, and slide the slider 2 to the next injection port for detection.

[0034] Specifically, after the workpiece is manufactured by 3D printing technology, the injection port can be processed on the workpiece by electric spark equipment (according to the size and positioning line of the injection port given by the process); after the injection port is processed, the injection port and the groove inside the workpiece are flushed with a flushing device, and after the flushing is completed, the above-mentioned flow detection is performed by the detection tooling of the utility model, and each injection port is repaired according to the detection result until the measured flow is within the standard flow parameter range; then a secondary flushing is performed to rinse off the processing debris generated during the repairing process, and finally the workpiece is dried to prevent the workpiece from rusting.

[0035] (1) The above flushing process is a forward and reverse flushing process, and the flushing is qualified until there is no visible processing debris on the white cloth wrapped around the water outlet. (2) During the hole repair process, when it is necessary to expand the injection port, a fine steel wire can be used to grind and expand the injection port; when it is necessary to shrink the injection port, a special punch can be used to knock around the injection port, and the hole can be repaired and measured at the same time until the size of the injection port meets the requirements. (3) The workpiece can be dried in an oven.

[0036] The detection tooling of the utility model can be conveniently fixed on the surface of the workpiece by means of a fixed ring structure, and the position of the water inlet transfer tube threaded thereon on the circumferential surface of the workpiece can be freely adjusted by means of a slider slidably arranged between the two fixed rings, thereby effectively improving the detection efficiency; and the water inlet transfer tube is connected to the liquid injection port on the workpiece by means of a threaded connection structure, and the connection and separation are simple and reliable, and a gasket is provided to ensure the sealing during connection, thereby ensuring the accuracy of the detection result.

[0037] Reference Figure 1 and Figure 2 As shown, further, a first annular groove 111 and a second annular groove 121 are respectively formed on opposite surfaces of the first fixing ring 11 and the second fixing ring 12, and both ends of the slider 2 are slidably connected to the first annular groove 111 and the second annular groove 121 respectively.

[0038] Furthermore, connecting parts matching the shapes of the first annular groove 111 and the second annular groove 121 are respectively provided at both ends of the slider 2, and the slider 2 is slidably connected to the first annular groove 111 and the second annular groove 121 through the connecting parts. The slider 2 can also be configured as a whole to have a shape matching the first annular groove 111 or the second annular groove 121.

[0039] Further, the first fixing ring 11 is provided with a plurality of first bolt holes, the second fixing ring 12 is provided with a plurality of second bolt holes respectively coaxial with the first bolt holes, the mutually coaxial first bolt holes and second bolt holes form a plurality of bolt hole groups, and a plurality of bolts 13 respectively connect the first fixing ring 11 and the second fixing ring 12 at each bolt hole group. The spacing between the first fixing ring 11 and the second fixing ring 12 can be adjusted by tightening the bolts 13.

[0040] Reference Figure 4 As shown, further, the water inlet conversion pipe 3 is a circular tube, an external thread is arranged on the circumferential surface of the water inlet conversion pipe 3, and a groove 31 is coaxially arranged at one end of the water inlet conversion pipe 3 close to the inner side of the first fixing ring 11 / the second fixing ring 12, and the gasket 4 is embedded in the groove 31.

[0041] Further, a connection nozzle is connected to one end of the water inlet transfer pipe 3 away from the groove 31. The connection nozzle can be connected by welding to facilitate the connection of the water inlet transfer pipe 3 with an external connection pipe.

[0042] Furthermore, the gasket 4 is an annular gasket, and the gasket 4 is made of polytetrafluoroethylene. The polytetrafluoroethylene gasket has good corrosion resistance, wear resistance, high temperature resistance and low friction coefficient, and can be applied to sealing operations in various extreme environments.

[0043] Reference Figure 3 As shown, further, the first fixing ring 11 and the second fixing ring 12 are both circular ring structures composed of two semicircular rings 14, the two ends of the two semicircular rings 14 are butted against each other, and a fixing seat 15 is respectively provided at the two ends of the two semicircular rings 14, and the two fixing seats 15 opposite to each other between the two semicircular rings 14 are connected to each other by connecting bolts. Specifically, coaxial bolt holes are provided on the two corresponding fixing seats 15, and the two fixing seats 15 can be connected by connecting bolts, thereby achieving butt joint of the two semicircular rings 14.

[0044] Furthermore, the fixing seat 15 is disposed on a surface of the first fixing ring 11 and the second fixing ring 12 which are away from each other, so as to prevent the fixing seat 15 from interfering with the sliding of the slider.

[0045] Furthermore, the first fixing ring 11, the second fixing ring 12, the sliding block 2 and the water inlet transfer pipe 3 are all made of stainless steel, but are not limited to stainless steel.

[0046] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A 3D printed pipe wall inner channel water flow detection tool, characterized in that: include: A fixing ring, the fixing ring comprising a first fixing ring and a second fixing ring arranged coaxially, the first fixing ring and the second fixing ring are arranged at intervals and connected to each other by a plurality of bolts; A slider, wherein the slider is slidably connected between the first fixing ring and the second fixing ring, and the slider is provided with a threaded through hole extending along the diameter direction of the first fixing ring / the second fixing ring; A water inlet adapter pipe is screwed into the threaded through hole via an external thread, and a gasket is provided at one end of the water inlet adapter pipe close to the inner side of the first fixing ring / the second fixing ring.

2. The 3D printed pipe wall inner channel water flow detection tooling according to claim 1, characterized in that: A first annular groove and a second annular groove are respectively formed on opposite surfaces of the first fixing ring and the second fixing ring, and two ends of the sliding block are respectively slidably connected to the first annular groove and the second annular groove.

3. The 3D printed pipe wall inner channel water flow detection tooling according to claim 2, characterized in that: Both ends of the slider are respectively provided with connecting parts matching the shapes of the first annular groove and the second annular groove, and the slider is slidably connected with the first annular groove and the second annular groove through the connecting parts.

4. The 3D printed pipe wall inner channel water flow detection tooling according to claim 1, characterized in that: The first fixing ring is provided with a plurality of first bolt holes, and the second fixing ring is provided with a plurality of second bolt holes which are coaxial with the first bolt holes respectively. The coaxial first bolt holes and second bolt holes form a plurality of bolt hole groups, and the plurality of bolts connect the first fixing ring and the second fixing ring at each of the bolt hole groups respectively.

5. The 3D printed pipe wall inner channel water flow detection tooling according to claim 1, characterized in that: The water inlet adapter is a round tube, the outer thread is arranged on the circumferential surface of the water inlet adapter, and a groove is coaxially arranged at one end of the water inlet adapter close to the inner side of the first fixing ring / the second fixing ring, and the gasket is embedded in the groove.

6. The 3D printed pipe wall inner channel water flow detection tooling according to claim 5, characterized in that: One end of the water inlet transfer pipe away from the groove is connected with a pipe nozzle.

7. The 3D printed pipe wall inner channel water flow detection tooling according to claim 5, characterized in that: The gasket is an annular gasket, and the gasket is made of polytetrafluoroethylene.

8. The 3D printed pipe wall inner channel water flow detection tooling according to claim 1, characterized in that: The first fixing ring and the second fixing ring are both circular ring structures composed of two semicircular rings, the two ends of the two semicircular rings are butt-jointed with each other, and a fixing seat is respectively arranged at the two ends of the two semicircular rings, and the two fixing seats opposite to each other between the two semicircular rings are connected to each other by connecting bolts.

9. The 3D printed pipe wall inner channel water flow detection tooling according to claim 8, characterized in that: The fixing seat is arranged on a surface of the first fixing ring and the second fixing ring which are away from each other.

10. The 3D printed pipe wall inner channel water flow detection tooling according to claim 1, characterized in that: The first fixing ring, the second fixing ring, the sliding block and the water inlet transfer pipe are all made of stainless steel.

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