A new flow detection structure

Abstract

The present invention discloses a novel flow detection structure, which relates to the technical field of flow detection structures, including a mounting seat and a workbench, wherein the workbench is located on one side of the mounting seat, a pressure gauge is provided above the mounting seat, and side walls of the mounting seat are respectively provided with an air pressure valve, a pressure reducing valve and an air outlet joint, the pressure reducing valve is arranged between the air pressure valve and the air outlet joint and is connected through a first connecting pipe, and the pressure gauge is connected to the first connecting pipe arranged between the air outlet joint and the pressure reducing valve. The novel flow detection structure allows the air flow to enter the flow channel of the workpiece to be measured through the air pressure valve, the pressure reducing valve, the pressure gauge and the air inlet joint, and discharge it from the air outlet pipe connected at the other end of the flow channel, and the data displayed by the flow meter arranged on the air outlet pipe is observed to determine whether the pressure data in the flow channel has changed, which is convenient for the staff to make intuitive judgments, and the operation is simple and convenient to use.

Description

Technical Field

[0001] The present invention relates to a flow detection structure, in particular to a novel flow detection structure. Background Art

[0002] In the semiconductor industry, there are many brazing parts with small closed flow channels. Under high brazing temperatures, the solder used in brazing will flow, and some of the solder will flow into the flow channel, causing the flow channel to become smaller.

[0003] However, in the prior art, during the flow channel detection process, only an air gun was used to blow air at the flow channel inlet and outlet, which failed to achieve a unified and stable pressure source, failed to implement digital quantification of the flow rate, and had many vague concepts. Summary of the Invention

[0004] In response to the shortcomings of the prior art, the present invention adopts the following technical solution to solve its technical problems: a new flow detection structure, comprising a mounting base and a workbench, the workbench is located on one side of the mounting base, a pressure gauge is provided above the mounting base, and the side walls of the mounting base are respectively provided with an air pressure valve, a pressure reducing valve and an air outlet joint, the pressure reducing valve is arranged between the air pressure valve and the air outlet joint and is connected through a first connecting pipe, the pressure gauge is connected to the first connecting pipe arranged between the air outlet joint and the pressure reducing valve, a workpiece to be measured is detachably provided on the workbench through a clamping mechanism, an air inlet joint is provided on a side of the workbench close to the mounting base, one end of the air inlet joint is connected to the air outlet joint through a second connecting pipe, the other end of the air inlet joint extends to the inner side of the workbench and is connected to one end of the flow channel on the workpiece to be measured, a plurality of air outlet pipes are provided on the side wall of the workbench, the inner end of the air outlet pipe is connected to the other end of the flow channel of the workpiece to be measured, and the outer end of the air outlet pipe extends out of the outside of the workbench and is connected to a flow meter.

[0005] Preferably, the air inlet and output ends of the pressure reducing valve are connected to the air pressure valve and the pressure gauge respectively through a first connecting pipe, and the first connecting pipe is arranged inside the mounting seat. By arranging the first connecting pipe inside the mounting seat, it is convenient to organize and stabilize the first connecting pipe, thereby ensuring the neatness of the mounting seat.

[0006] Preferably, the air outlet joint has the same installation structure as the second connecting pipe and the first connecting pipe, the end face of the air outlet joint is provided with a threaded pipe, the threaded pipe is provided with a side groove, the outer thread of the threaded pipe is provided with a first nut, one end of the first connecting pipe passes through the threaded pipe and is arranged inside the air outlet joint, and a sealing gasket is provided between the first connecting pipe and the threaded pipe. When assembling the air outlet joint and the first connecting pipe, the sealing gasket is sleeved on the outer side of the first connecting pipe, and one end of the first connecting pipe provided with the sealing gasket is arranged in the air outlet joint, so that the sealing gasket remains between the threaded pipe and the first connecting pipe, and then the first nut is rotated, and the first nut moves on the threaded pipe. Since the threaded pipe is provided with a side groove, as the first nut is rotated, the threaded pipe is tightened, thereby realizing the clamping and sealing operation between the threaded pipe and the first connecting pipe. Similarly, the assembly between the second connecting pipe and the air outlet joint is as described above.

[0007] Preferably, a support bracket is provided on the side wall of the mounting seat below the air outlet connector, and the upper part of the support bracket and the lower part of the air outlet connector are adapted to be matched with each other, so as to facilitate the support operation of the air outlet connector connected to one end of the first connecting pipe, thereby effectively ensuring the stability of the installation of the air outlet connector.

[0008] Preferably, the clamping mechanism is a limiting shaft and a limiting plate, and a placement groove for placing the workpiece to be measured is provided at the center position of the workbench, and a limiting shaft adapted to the workpiece to be measured is provided in the placement groove, and the workpiece to be measured and the limiting plate are passed through the limiting shaft, and the upper end of the limiting shaft extends above the workpiece to be measured and the limiting plate and is assembled and connected through a second nut. Through the cooperation of the limiting shaft and the second nut, a stable limiting operation of the workpiece to be measured on the workbench is realized.

[0009] Preferably, the air inlet joint and the workpiece to be measured and the air outlet pipe have the same connecting structure with the workpiece to be measured, the air inlet joint extends to one end inside the workbench and is connected with a folding tube, a fixing ring is provided on the outside of one end of the folding tube, a sealing ring is provided on the outside of the fixing ring, and cylinders are symmetrically provided on the inner side of the workbench on both sides of the folding tube, and one end of the cylinder is assembled and connected to the fixing ring. When the air inlet joint and one end of the flow channel of the workpiece to be measured are connected, the folding tube is extended by extending the cylinder, so that the fixing ring is close to the workpiece to be measured, and the sealing between the fixing ring and the workpiece to be measured is ensured by the provided sealing ring.

[0010] Preferably, the ventilation diameters of the first connecting pipe, the second connecting pipe, the pressure reducing valve, the air pressure valve, the air outlet connector and the air inlet connector are all larger than the flow channel diameter in the workpiece to be measured.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. In the present invention, the air flow enters the flow channel of the workpiece to be tested through the second connecting pipe and the air inlet joint, and is discharged from the air outlet pipe arranged at the other end of the flow channel. The data displayed by the flow meter arranged on the air outlet pipe is used to observe and judge whether the pressure data in the flow channel has changed, thereby judging whether there are obstructing impurities such as solder in the flow channel. This is convenient for staff to make intuitive judgments, and the operation is simple and convenient to use.

[0013] 2. The present invention arranges a sealing gasket on the outside of the first connecting tube and arranges one end of the first connecting tube provided with the sealing gasket in the air outlet joint, so that the sealing gasket remains between the threaded tube and the first connecting tube, and then rotates the first nut, and the first nut moves on the threaded tube. Since the threaded tube is provided with a side groove, as the first nut rotates, the threaded tube is tightened, thereby realizing a clamping and sealing operation between the threaded tube and the first connecting tube.

[0014] 3. The present invention connects the air inlet joint with one end of the flow channel of the workpiece to be measured, and extends the cylinder to drive the folding tube to extend, so that the fixing ring is close to the workpiece to be measured. The sealing ring is provided to ensure the sealing between the fixing ring and the workpiece to be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present invention;

[0016] Figure 2 is a perspective view of the mounting base of the present invention;

[0017] Figure 3 It is a three-dimensional diagram of the workbench of the present invention;

[0018] Figure 4 This is an exploded perspective view of the first connecting pipe and the gas outlet joint of the present invention;

[0019] Figure 5 It is a stereoscopic diagram of the assembly of the air outlet pipe and the folding pipe of the present invention.

[0020] In the figure: 1. Mounting base; 2. Workbench; 3. Pressure gauge; 4. Air pressure valve; 5. Pressure reducing valve; 6. Air outlet connector; 7. First connecting pipe; 8. Workpiece to be measured; 9. Air inlet connector; 10. Second connecting pipe; 11. Air outlet pipe; 12. Flow meter; 13. Threaded pipe; 14. First nut; 15. Sealing gasket; 16. Support bracket; 17. Limiting shaft; 18. Limiting plate; 19. Second nut; 20. Folding tube; 21. Fixing ring; 22. Sealing ring; 23. Cylinder. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0022] Example 1:

[0023] See also Figure 1 - Figure 5The present invention provides a technical solution: a new flow detection structure, including a mounting base 1 and a workbench 2, the workbench 2 is located on one side of the mounting base 1, a pressure gauge 3 is provided above the mounting base 1, and a pressure valve 4, a pressure reducing valve 5 and an air outlet joint 6 are respectively provided on the side walls of the mounting base 1, the pressure reducing valve 5 is arranged between the pressure valve 4 and the air outlet joint 6 and is connected through a first connecting pipe 7, the pressure gauge 3 is connected to the first connecting pipe 7 arranged between the air outlet joint 6 and the pressure reducing valve 5, a workpiece to be measured 8 is detachably provided on the workbench 2 through a clamping mechanism, an air inlet joint 9 is provided on the side of the workbench 2 close to the mounting base 1, and one end of the air inlet joint 9 is connected to the second connecting pipe 7. The connecting pipe 10 is connected to the air outlet joint 6, and the other end of the air inlet joint 9 extends to the inner side of the workbench 2 and is connected to one end of the flow channel on the workpiece 8 to be tested. A plurality of air outlet pipes 11 are provided on the side wall of the workbench 2. The inner end of the air outlet pipe 11 is connected to the other end of the flow channel of the workpiece 8 to be tested, and the outer end of the air outlet pipe 11 extends out of the outside of the workbench 2 and is connected to a flow meter 12. Before testing the workpiece 8 to be tested, the workpiece 8 to be tested is placed steadily on the workbench 2 through the clamping mechanism, and 0.8MPa nitrogen is injected into the air inlet end of the air pressure valve 4 as a pressure source, and then the workpiece 8 to be tested is used to measure the flow rate. During the test, the air pressure valve is used to The airflow of 4 passes through the first connecting pipe 7, the pressure reducing valve 5, the pressure gauge 3 and the air outlet joint 6, and then enters the air inlet joint 9 through the second connecting pipe 10. It is connected to the port of a flow channel of the workpiece to be measured 8 through the air inlet joint 9, and according to the position of the other port of the flow channel, the air outlet pipe 11 at the corresponding position on the workbench 2 is used to connect it, and the flow meter 12 is connected to the air outlet pipe 11. When measuring for the first time, open the air pressure valve 4 first and close the air outlet joint 6. At this time, read the pressure value at this time through the pressure gauge 3. According to the flow channel diameter of the workpiece to be measured, it is judged whether the pressure value is within the required specified range. At this time, it can be adjusted The pressure reducing valve 5 controls the pressure value. After adjustment, the air outlet connector 6 is opened to allow the air flow to enter the flow channel of the workpiece 8 to be measured through the second connecting pipe 10 and the air inlet connector 9, and be discharged from the air outlet pipe 11 connected to the other end of the flow channel. The data displayed by the flow meter 12 arranged on the air outlet pipe 11 is used to observe and judge whether the pressure data in the flow channel has changed, thereby judging whether there are obstructing impurities such as solder in the flow channel, which is convenient for the staff to make intuitive judgments. The operation is simple and easy to use. The air pressure valve 4 is a DN25 valve, the pressure gauge 3 is a 0.4-level YB-150 pressure gauge, and the flow meter 12 is a MF5712-N-200 flow meter.

[0024] The air inlet and output ends of the pressure reducing valve 5 are connected to the air pressure valve 4 and the pressure gauge 3 respectively through the first connecting pipe 7. The first connecting pipe 7 is arranged inside the mounting base 1. By arranging the first connecting pipe 7 inside the mounting base 1, it is convenient to organize and stabilize the first connecting pipe 7, thereby ensuring the neatness of the mounting base 1.

[0025] The installation structure of the air outlet joint 6 is the same as that of the second connecting pipe 10 and the first connecting pipe 7. The end face of the air outlet joint 6 is provided with a threaded pipe 13, and a side groove is opened on the threaded pipe 13. The outer thread of the threaded pipe 13 is provided with a first nut 14. One end of the first connecting pipe 7 passes through the threaded pipe 13 and is arranged inside the air outlet joint 6. A sealing gasket 15 is provided between the first connecting pipe 7 and the threaded pipe 13. When assembling the air outlet joint 6 and the first connecting pipe 7, the sealing gasket 15 is sleeved on the outer side of the first connecting pipe 7, and one end of the first connecting pipe 7 provided with the sealing gasket 15 is arranged in the air outlet joint 6, so that the sealing gasket 15 remains between the threaded pipe 13 and the first connecting pipe 7, and then the first nut 14 is rotated. The first nut 14 moves on the threaded pipe 13. Since the threaded pipe 13 is provided with a side groove, as the first nut 14 is rotated, the threaded pipe 13 is tightened, thereby realizing the clamping and sealing operation between the threaded pipe 13 and the first connecting pipe 7. Similarly, the assembly between the second connecting pipe 10 and the air outlet joint 6 is as described above.

[0026] A support bracket 16 is provided on the side wall of the mounting base 1 below the air outlet connector 6. The upper part of the support bracket 16 and the lower part of the air outlet connector 6 are adapted to fit the support bracket 16, which facilitates the supporting operation of the air outlet connector 6 connected to one end of the first connecting pipe 7, thereby effectively ensuring the stability of the installation of the air outlet connector 6.

[0027] The clamping mechanism consists of a limiting shaft 17 and a limiting plate 18. A placement groove for placing the workpiece 8 to be measured is provided at the center position of the workbench 2. A limiting shaft 17 adapted to the workpiece 8 to be measured is provided in the placement groove. The workpiece 8 to be measured and the limiting plate 18 are passed through the limiting shaft 17. The upper end of the limiting shaft 17 extends above the workpiece 8 to be measured and the limiting plate 18 and is assembled and connected through a second nut 19. Through the cooperation of the limiting shaft 17 and the second nut 19, a stable limiting operation of the workpiece 8 to be measured on the workbench 2 is realized.

[0028] The connecting structure of the air inlet joint 9 and the workpiece to be measured 8 is the same as that of the air outlet pipe 11 and the workpiece to be measured 8. The air inlet joint 9 extends to one end inside the workbench 2 and is connected with a folding tube 20. A fixing ring 21 is provided on the outside of one end of the folding tube 20. A sealing ring 22 is provided on the outside of the fixing ring 21. Cylinders 23 are symmetrically provided on the inside of the workbench 2 on both sides of the folding tube 20. One end of the cylinder 23 is assembled and connected to the fixing ring 21. When the air inlet joint 9 is connected with one end of the flow channel of the workpiece to be measured 8, the folding tube 20 is extended by extending the cylinder 23, so that the fixing ring 21 is close to the workpiece to be measured 8. The sealing between the fixing ring 21 and the workpiece to be measured 8 is ensured by the provided sealing ring 22.

[0029] The ventilation diameters of the first connecting pipe 7 , the second connecting pipe 10 , the pressure reducing valve 5 , the air pressure valve 4 , the air outlet joint and the six air inlet joints 9 are all larger than the flow channel diameter in the workpiece 8 to be measured.

[0030] During use, before testing the workpiece 8 to be tested, the workpiece 8 to be tested is placed steadily on the workbench 2 through the clamping mechanism, and 0.8MPa nitrogen is injected into the air inlet end of the air pressure valve 4 as a pressure source, and then the workpiece 8 to be tested is used to perform a flow measurement test. During the test, the air flow through the air pressure valve 4 passes through the first connecting pipe 7, the pressure reducing valve 5, the pressure gauge 3 and the air outlet joint 6, and then enters the air inlet joint 9 through the second connecting pipe 10. It is connected to the port of a flow channel of the workpiece 8 to be tested through the air inlet joint 9, and according to the position of the other port of the flow channel, the air outlet pipe 11 at the corresponding position on the workbench 2 is used to connect it, and the flow meter 12 is connected to the air outlet pipe 11. During the first measurement, the air pressure valve 4 is opened first, and the air outlet joint 6 is closed. At this time, the pressure is passed through The pressure value at this time is read from Table 3. It is determined whether the pressure value is within the required specified range based on the flow channel diameter of the workpiece 8 to be measured. At this time, the pressure value can be controlled by adjusting the pressure reducing valve 5. After adjustment, the air outlet joint 6 is opened to allow the air flow to enter the flow channel of the workpiece 8 to be measured through the second connecting pipe 10 and the air inlet joint 9, and be discharged from the air outlet pipe 11 connected to the other end of the flow channel. The data displayed by the flow meter 12 provided on the air outlet pipe 11 is used to observe and determine whether the pressure data in the flow channel has changed, thereby determining whether there are obstructing impurities such as solder in the flow channel. This facilitates intuitive judgment by the staff, is simple to operate, and is convenient to use. The air pressure valve 4 is a DN25 valve, the pressure gauge 3 is a 0.4-level YB-150 pressure gauge, and the flow meter 12 is a MF5712-N-200 flow meter.

[0031] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative work should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention are implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A new flow detection structure, characterized by: The invention comprises a mounting seat (1) and a workbench (2), wherein the workbench (2) is located on one side of the mounting seat (1), a pressure gauge (3) is provided above the mounting seat (1), and a pressure valve (4), a pressure reducing valve (5) and an air outlet joint (6) are provided on the side walls of the mounting seat (1), respectively. The pressure reducing valve (5) is provided between the pressure valve (4) and the air outlet joint (6) and is connected to each other through a first connecting pipe (7), and the pressure gauge (3) is connected to the first connecting pipe (7) provided between the air outlet joint (6) and the pressure reducing valve (5). A workpiece (8) to be measured is detachably provided on the workbench (2) through a clamping mechanism, and an air inlet joint (9) is provided on the side of the workbench (2) close to the mounting seat (1), and one end of the air inlet joint (9) is connected to the air outlet joint (6) through a second connecting pipe (10). The other end of the air inlet joint (9) extends to the inner side of the workbench (2) and is connected to one end of the flow channel on the workpiece (8) to be measured. A plurality of air outlet pipes (11) are provided on the side wall of the workbench (2). The inner end of the air outlet pipe (11) is connected to the other end of the flow channel of the workpiece (8) to be measured. The outer end of the air outlet pipe (11) extends out of the outside of the workbench (2) and is connected to a flow meter (12). The air inlet end and the output end of the pressure reducing valve (5) are connected to the air pressure valve (4) and the pressure gauge (3) respectively through a first connecting pipe (7). The first connecting pipe (7) is provided inside the mounting seat (1). A support bracket (16) is provided on the side wall of the mounting seat (1) below the air outlet joint (6). The upper part of the support bracket (16) is adapted to the lower part of the air outlet joint (6).

2. A novel flow detection structure according to claim 1, characterized in that: The air outlet joint (6) has the same installation structure as the second connecting pipe (10) and the first connecting pipe (7). The end surface of the air outlet joint (6) is provided with a threaded pipe (13), a side groove is provided on the threaded pipe (13), and a first nut (14) is provided on the outer thread of the threaded pipe (13). One end of the first connecting pipe (7) passes through the threaded pipe (13) and is arranged inside the air outlet joint (6). A sealing gasket (15) is provided between the first connecting pipe (7) and the threaded pipe (13).

3. A novel flow detection structure according to claim 1, characterized in that: The clamping mechanism comprises a limiting shaft (17) and a limiting plate (18); a placement slot for placing the workpiece (8) to be measured is provided at the center of the workbench (2); a limiting shaft (17) adapted to the workpiece (8) to be measured is provided in the placement slot; the workpiece (8) to be measured and the limiting plate (18) are passed through the limiting shaft (17); the upper end of the limiting shaft (17) extends above the workpiece (8) to be measured and the limiting plate (18) and is assembled and connected via a second nut (19).

4. A novel flow detection structure according to claim 1, characterized in that: The air inlet joint (9) and the workpiece to be measured (8) have the same communication structure as the air outlet pipe (11) and the workpiece to be measured (8). The air inlet joint (9) extends to one end inside the workbench (2) and is connected to a folding tube (20). A fixing ring (21) is provided on the outside of one end of the folding tube (20). A sealing ring (22) is provided on the outside of the fixing ring (21). Cylinders (23) are symmetrically provided on the inside of the workbench (2) on both sides of the folding tube (20). One end of the cylinder (23) is assembled and connected to the fixing ring (21).

5. A novel flow detection structure according to claim 1, characterized in that: The ventilation diameters of the first connecting pipe (7), the second connecting pipe (10), the pressure reducing valve (5), the air pressure valve (4), the air outlet joint (6) and the air inlet joint (9) are all larger than the flow channel diameter in the workpiece to be measured (8).

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