CN207622954U - A kind of pipe end molding on-line measuring device - Google Patents

Abstract

The utility model relates to an online detection device for pipe end forming. It includes an air source and an air valve. The air valve is used to open and close the air source. It also includes a punch for detecting the cracking of the pipe and a pipeline connecting the air valve and the punch. The punch is installed on the pipe end forming machine In the punch die base of the punch, the punch is a hollow structure, the top of the hollow structure of the punch is connected with the pipeline, and a number of annular grooves are arranged on the outer circumference of the punch, and the ring grooves are connected with the hollow of the punch. The structures communicate through pores. After adopting this device, the cracking condition of the pipe fittings can be detected during forming, which saves the process cost and eliminates the subsequent detection process. This device is used in the pipe end forming machine. The punch is installed in the punch seat of the machine tool. When the punch performs the forming process on the pipe fittings, the leak detection work can be carried out simultaneously and integrated with the forming process. It saves the process of separately going to the leak test line to test the leak, saves labor and process costs, and greatly increases the production cycle.

Description

A pipe end forming on-line detection device

technical field

The utility model relates to the field of pipe end forming machines, in particular to an online detection device for pipe end forming.

Background technique

All fluid pipes must go through a leak detection process after the pipe end is formed. This process requires special tooling and special leak detection equipment. The pipe fittings after the pipe end is formed must also have this process, which affects the overall production. Efficiency, and invisibly increase labor costs and time costs.

Contents of the invention

Aiming at the problems in the prior art, the utility model provides an online detection device for pipe end formation and an online detection method for pipe end formation.

In order to solve the above problems, the solution of the utility model is an online detection device for pipe end forming, which includes an air source and an air valve, the air valve is used to open and close the air source, and also includes a punch for detecting cracking of pipe fittings And the pipeline connecting the air valve and the punch, the punch is installed in the punch die seat of the pipe end forming machine, the punch is a hollow structure, and the top of the hollow structure of the punch is connected with the pipeline, so A plurality of annular grooves are arranged on the outer circumference of the punch, and the ring grooves communicate with the hollow structure of the punch through holes.

As a further improvement, it also includes an electronic digital display pressure switch, an electronic digital display pressure switch is provided on the pipeline, and an air valve is connected to the other end of the pipeline, and the electronic digital display pressure switch is used to detect the pressure in the pipeline. gas pressure.

As a further improvement, the output point of the electronic digital display pressure switch is connected with a programmable controller.

As a further improvement, the top end of the hollow structure of the punch communicates with the pipeline through a pipe joint.

As a further improvement, the root of the punch is provided with sealing pipe threads.

An online detection method for pipe end forming, using the above-mentioned online detection device for pipe end forming, comprising:

Step 1. The punch is inserted into the pipe fitting to expand the pipe;

Step 2. If there is no crack after the pipe fitting is formed, then the pipe fitting and the punch are in a state of tight fit. The programmable controller controls the air valve to open the air source, and the punch and the entire air circuit are inflated through the pipeline. After the inflation is completed, you can The programmable controller controls the air valve to close, and the entire air circuit is in a state of maintaining pressure. The electronic digital display pressure switch is set with a minimum pressure value for detection. standard pressure value.

Step 3. If the electronic digital display pressure switch detects that the pressure value of the entire gas circuit is lower than the minimum pressure value, the pipe is judged to be in a cracked state;

Step 4. The electronic digital display pressure switch outputs a signal to the programmable controller. After receiving the signal, the system gives an alarm signal;

Step 5. Take out the pipe fittings and place them in the waste bin.

As can be seen from the above description, the utility model has the following advantages:

After adopting this device, the cracking condition of the pipe fittings can be detected during forming, which saves the process cost and eliminates the subsequent detection process.

This device is used in the pipe end forming machine. The punch is installed in the punch seat of the machine tool. When the punch performs the forming process on the pipe fittings, the leak detection work can be carried out simultaneously and integrated with the forming process. It saves the process of separately going to the leak test line to test the leak, saves labor and process costs, and greatly increases the production cycle.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of punch of the present utility model;

Reference signs: 1. pipe fittings, 2. punch, 3. pipeline, 4. electronic digital display pressure switch, 5. programmable controller, 6. air source, 7. air valve, 21. hollow structure of the punch Top, 22, annular groove, 23, hole, 24, punch root.

Detailed ways

With reference to Fig. 1 and Fig. 2, the first specific embodiment of the utility model is described in detail, but the claims of the utility model are not limited in any way.

As shown in Figures 1 and 2, a pipe end forming on-line detection device includes an air source 6 and an air valve 7, the air valve 7 is used to open and close the air source 6, and also includes a protrusion for detecting the cracking of the pipe fittings. The mold 2 and the pipeline 3 communicating with the air valve 7 and the punch 2, the punch 2 is installed in the punch mold seat of the pipe end forming machine, the punch 2 is a hollow structure, and the punch 2 has a hollow structure The top end 21 of the punch 2 communicates with the pipeline 3, and several annular grooves 22 are arranged on the outer circumference of the punch 2, and the ring grooves communicate with the hollow structure of the punch 2 through holes 23.

More specifically, it also includes an electronic digital display pressure switch 4, the pipeline 3 is provided with an electronic digital display pressure switch 4, and the other end of the pipeline 3 is connected to an air valve, and the electronic digital display pressure switch 4 is used for Check the gas pressure in line 3.

More specifically, the output point of the electronic digital display pressure switch 4 is connected to the programmable controller 5 .

More specifically, the top 21 of the hollow structure of the punch 2 communicates with the pipeline 3 through a pipe joint.

More specifically, the root 24 of the punch 2 is provided with sealing pipe threads.

An online detection method for pipe end forming, using the above-mentioned online detection device for pipe end forming, comprising:

Step 1. The punch 2 is inserted into the pipe fitting 1 to expand the pipe;

Step 2. If there is no crack after the pipe fitting 1 is formed, then the pipe fitting 1 and the punch 2 are in a tight fit state. The programmable controller 5 controls the air valve 7 to open the air source 6, and the punch 2 and the entire air path are supplied through the pipeline 3. Inflating, after the inflation is completed, the programmable controller 5 controls the air valve 7 to close, and the entire air circuit is in a pressure-holding state. The electronic digital display pressure switch 4 is set with a minimum pressure value for detection, and the minimum pressure value is the standard The standard pressure value obtained after several tests on a well-formed pipe fitting.

Step 3, if the electronic digital display pressure switch 4 detects that the pressure value of the entire gas circuit is lower than the minimum pressure value, the pipe 1 is determined to be in a cracked state;

Step 4, the electronic digital display pressure switch 4 outputs a signal to the programmable controller 5, and after receiving the signal, the system gives an alarm signal;

Step 5, take out the pipe fitting 1 and place it in the waste bin.

During use, the raw material pipe fitting 1 is put into the clamping die (not shown in the figure of the utility model), the punch 2 is installed in the punch mounting seat of the pipe end forming machine (the punch mounting seat is not shown in the figure of the utility model), Connect the electronic digital display pressure switch 4 with the air valve 7 and the air source 6 through the pipeline 3 (a hose can be used as the pipeline in specific use), and ensure that there is no leakage at the joint, and the signal point of the electronic digital display pressure switch 4 is connected by a cable At the input end of the programmable controller 5, the control line of the gas valve 7 is connected to the output end of the programmable controller 5 by a cable.

The working process of the utility model is as follows: after the whole device and the pipe end forming machine are integrated and installed, when the punch 2 is inserted into the pipe fitting 1 to expand the pipe, if the pipe fitting 1 is formed without cracking, then it will be in close contact with the punch 2 In the closed state, the programmable controller 5 controls the air valve 7 to open, and the entire air circuit is inflated through the pipeline 3. After the inflation is completed, the programmable controller 5 controls the air valve 7 to close, and the entire air circuit is in a state of maintaining pressure. The electronic digital display The pressure switch 4 is set with a minimum pressure for detection. If the pressure is lower than this pressure, the pipe 1 is judged to be in a cracked state. At this time, the electronic digital display pressure switch 4 outputs a signal to the programmable controller 5. After receiving the signal, The system gives an alarm signal, or takes out the pipe fitting and places it in the waste bin through other mechanisms. This device saves a separate leak detection process, saves cost and increases efficiency.

To sum up, after adopting this device, the cracking condition of the pipe fittings can be detected during forming, which saves the process cost and eliminates the subsequent inspection process.

This device is used in the pipe end forming machine. The punch is installed in the punch seat of the machine tool. When the punch performs the forming process on the pipe fittings, the leak detection work can be carried out simultaneously and integrated with the forming process. It saves the process of separately going to the leak test line to test the leak, saves labor and process costs, and greatly increases the production cycle.

It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that without departing from rights In the case of requiring the limited spirit and scope, the utility model can be modified or equivalently replaced to achieve the same technical effect, but all are within the protection scope of the utility model.

Claims (5)

1. An online detection device for pipe end forming, comprising an air source (6) and an air valve (7), the air valve (7) being used to open and close the air source (6), characterized in that: it also includes an air source (6) for detecting The punch (2) and the pipeline (3) connecting the air valve (7) and the punch (2) for the cracking of the pipe fittings, the punch (2) is installed in the punch die holder of the pipe end forming machine, so The punch (2) is a hollow structure, the top (21) of the hollow structure of the punch (2) communicates with the pipeline (3), and several annular grooves (22) are arranged on the outer circumference of the punch (2) , the annular groove communicates with the hollow structure of the punch (2) through a hole (23). 2. The online detection device for pipe end forming according to claim 1, characterized in that it also includes an electronic digital display pressure switch (4), and an electronic digital display pressure switch (4) is provided on the pipeline (3) , the other end of the pipeline (3) is connected to a gas valve, and the electronic digital display pressure switch (4) is used to detect the gas pressure in the pipeline (3). 3. The pipe end forming on-line detection device according to claim 2, characterized in that: it also includes a programmable controller (5), and the output point of the electronic digital display pressure switch (4) is connected with the programmable controller (5). )connect. 4. The online inspection device for pipe end forming according to claim 1, characterized in that: the top (21) of the hollow structure of the punch (2) communicates with the pipeline (3) through a pipe joint. 5. The online detection device for pipe end forming according to claim 1, characterized in that: the root (24) of the punch (2) is provided with a sealing pipe thread.