Differential pressure die water-cooling leak hunting device

Abstract

The utility model discloses a differential pressure die water-cooling leak hunting device which comprises a pressure supply system, the pressure supply system comprises a water inlet pipe communicated with a high pressure water source, the water inlet pipe is communicated with a series connection device used for being connected with a die water segregator, and the series connection device comprises a series connection water pipe connected with the water inlet pipe. A series connection water hole is formed in the series connection device corresponding to a cooling water path of the mold water segregator, and is communicated with a series connection water pipe. According to the utility model, the mold cooling water channels are connected in series by arranging the series connection device, the rapid butt joint of the cooling water channels is realized, the trouble of connecting the cooling water channels one by one is avoided, the test efficiency is greatly improved, and the labor intensity is reduced; by arranging the air inlet pipe, the pressure of the leak hunting device is maintained by adopting compressed air in the leak hunting process, and the problem of high energy consumption is solved; meanwhile, compressed air is adopted to continuously supply pressure to the leak detection device, so that a tester can timely and accurately find a leakage point of the cooling water channel by identifying airflow sound, and the test sensitivity is improved.

Description

Technical Field

[0001] The utility model relates to the field of aluminum alloy automobile parts casting molds, in particular to a differential pressure mold water cooling leakage detection device. Background Art

[0002] Aluminum alloy auto parts are increasingly favored by the market due to their advantages of light weight, high strength and corrosion resistance, driven by the lightweight development trend of passenger cars. The differential pressure mold used for casting aluminum alloy auto parts plays a vital role in the manufacturing quality and efficiency of parts. The water cooling system of the differential pressure mold directly affects the normal use of the mold and is related to the casting quality of parts.

[0003] At present, differential pressure molds need to be tested for leaks in the cooling water circuit of the mold before being put on the machine to ensure the tightness of the water cooling system of the mold on the machine, thereby ensuring the continuity and stability of the production process. When the traditional leak detection device tests the cooling water circuit of the mold, the tester needs to connect the cooling water circuit in the mold manifold to the pressure pipeline one by one for testing. Each differential pressure mold usually has 50-90 cooling water circuits, and connecting the pipelines one by one is time-consuming and labor-intensive, and the test efficiency is extremely low. At the same time, the traditional leak detection device uses a water pump system to continuously supply pressure to the leak detection device, and the pressure supply pressure usually needs to be maintained above 0.4Mpa, which has high energy consumption. In addition, in the traditional test method, the tester can only judge the tightness of the cooling water circuit by observing whether there is water leakage in each cooling water circuit, and the test sensitivity is low.

[0004] Based on this, developing a new type of leak detection device for use in differential pressure mold leak detection tests to reduce the labor intensity of testers, improve test efficiency, increase test sensitivity, and save energy consumption is an urgent problem to be solved. Utility Model Content

[0005] The utility model aims to provide a differential pressure mold water cooling leak detection device to solve the problems of time-consuming and labor-intensive use, low test efficiency, high energy consumption and low sensitivity of existing leak detection devices.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A differential pressure mold water-cooled leak detection device includes a pressure supply system for providing test pressure for the leak detection device, the pressure supply system includes a water inlet pipe connected to a high-pressure water source, the water inlet pipe is connected to a series device for connecting a mold water distributor, the series device includes a series water pipe connected to the water inlet pipe, and the cooling water path corresponding to the mold water distributor in the series device is provided with series water holes, the series water holes are connected to series water pipes, the series water pipes are connected to adjacent series devices, and are connected to a water tank through a return pipe.

[0008] Preferably, a positioning pin is provided on the serial device corresponding to the positioning hole opened on the mold water distributor, and the positioning pin cooperates with the positioning hole pin hole.

[0009] Preferably, the series device is connected and fixed to the mold water distributor by locking bolts.

[0010] Preferably, the pressure supply system further comprises an air inlet pipe for supplying compressed air to the leak detection device, and the air inlet pipe is connected to the water inlet pipe.

[0011] Preferably, the water inlet pipe is connected to a water tank, and a water pump connected to the water inlet pipe is provided in the water tank, so that the water tank is used as a high-pressure water source to realize water supply circulation.

[0012] Preferably, the water tank is provided with an observation window so as to check the water circulation and water level changes in the water tank at any time.

[0013] Preferably, a pressure gauge is provided corresponding to the pressure supply system for real-time monitoring of the pressure value provided by the pressure supply system.

[0014] The beneficial effects of the utility model are:

[0015] The utility model connects the parallel-type cooling water circuits of the mold into a series type by arranging a series device, and quickly connects the series water pipes in the series device with the cooling water circuits in the mold water distributor, thereby eliminating the trouble of connecting the cooling water circuits one by one for leak detection in the traditional leak detection method, greatly improving the test efficiency and reducing the labor intensity of the testers; by arranging the air inlet pipe, during the leak detection process, compressed air is used to maintain the pressure of the leak detection device, thanks to the significant advantages of easy access and low cost of compressed air, the problem of high energy consumption caused by the traditional use of a water pump system to continuously supply pressure to the leak detection device is solved; at the same time, compressed air is used to continuously supply pressure to the leak detection device. When a certain cooling water circuit leaks, high-pressure water will carry the compressed air out from the leak point, generating a large airflow sound, which is convenient for the testers to timely and accurately find the leak point of the cooling water circuit by identifying the airflow sound, thereby improving the test sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the utility model in use state.

[0019] Figure 3 , Figure 4 It is a structural schematic diagram of the series connection device and the mold water distributor in the utility model.

[0020] In the figure: 1--pressure supply system; 11--water inlet pipe; 12--water return pipe; 13--water tank; 131--observation window; 14--air inlet pipe; 15--pressure gauge; 2--mold water distributor; 21--cooling water circuit; 22--locating hole; 23--locking bolt; 3--series device; 31--series water pipe; 32--series water hole; 33--locating pin. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] like Figure 1-4 As shown, a differential pressure mold water cooling leak detection device includes a pressure supply system 1 for providing test pressure for the leak detection device, the pressure supply system 1 includes a water inlet pipe 11 connected to a high-pressure water source, the water inlet pipe 11 is connected to a series device 3 for connecting a mold water distributor 2, the series device 3 includes a series water pipe 31 connected to the water inlet pipe 11, and a series water hole 32 is provided in the series device 3 corresponding to the cooling water path 21 of the mold water distributor 2, the series water hole 32 is connected to the series water pipe 31, and the high-pressure water in multiple cooling water paths 21 in the mold water distributor 2 is collected to the series water pipe 31, the series water pipe 31 is connected to adjacent series devices 3, and is connected to a water tank 13 through a return pipe 12.

[0023] When in use, the series device 3 is installed on the mold water distributor 2, so that the series water holes 32 correspond to and are connected with the cooling water channels 21 in the mold water distributor 2. The water inlet pipe 11 is opened to supply high-pressure water to the leak detection device. The high-pressure water enters the series device 3 through the series water pipe 31 and fills the cooling water channels 21 in the mold water distributor 2 through the series water holes 32. At this time, the return water pipe 12 is closed, and the pressure supply system 1 maintains a certain pressure to observe whether each cooling water channel 21 leaks, which serves as a basis for judging whether the sealing of the mold cooling water channel 21 is qualified.

[0024] In this embodiment, a series connection device 3 is provided to connect the parallel mold cooling water paths 21 into a series connection, and the series connection water holes 32 in the series connection device 3 are used to quickly connect the cooling water paths 21 in the mold water distributor 2, thereby eliminating the trouble of connecting the cooling water paths 21 one by one for leak detection in the traditional leak detection method, greatly improving the test efficiency and reducing the labor intensity of the testers.

[0025] As a preferred embodiment, the serial device 3 is provided with a positioning pin 33 corresponding to the positioning hole 22 opened on the mold water distributor 2, and the positioning pin 33 cooperates with the positioning hole 22 pin hole to improve the positioning and installation accuracy of the serial device 3 and the mold water distributor 2, and ensure the alignment accuracy of the serial water hole 32 of the serial device 3 and the cooling water channel 21 of the mold water distributor 2. Preferably, the serial device 3 and the mold water distributor 2 are connected and fixed by a locking bolt 23 to ensure the connection strength and ensure good sealing.

[0026] Preferably, the pressure supply system 1 also includes an air inlet pipe 14 for supplying compressed air to the leak detection device, and the air inlet pipe 14 is connected to the water inlet pipe 11. When the high-pressure water fills the cooling water circuit 21 in the mold, the return pipe 12 is closed. At this time, the high-pressure water source no longer supplies high-pressure water to the leak detection device, and compressed air is used instead to maintain the pressure of the leak detection device. Compared with high-pressure water, compressed air has the significant advantages of being easy to use and low cost, and solves the problem of high energy consumption caused by the traditional use of a water pump system to continuously supply pressure to the leak detection device. At the same time, compressed air is used to continuously supply pressure to the leak detection device. When a leak occurs in a cooling water circuit 21, the high-pressure water will carry the compressed air and leak out from the leak point. Due to the presence of compressed air, a large airflow sound will be generated, which is convenient for testers to find the leak point of the cooling water circuit 21 in a timely and accurate manner by identifying the airflow sound, thereby improving the test sensitivity.

[0027] Preferably, the water inlet pipe 11 is connected to the water tank 13, and a water pump connected to the water inlet pipe 11 is provided in the water tank 13, so that the water tank 13 is used as a high-pressure water source, and the circulation of water supply and return water is realized, thereby saving water. Furthermore, an observation window 131 is provided on the water tank 13, so that the tester can check the water circulation and water level changes in the water tank 13 at any time.

[0028] Preferably, a pressure gauge 15 is provided corresponding to the pressure supply system 1 for real-time monitoring of the pressure value provided by the pressure supply system 1 so as to adjust the pressure supply in time to meet the pressure requirement for leak detection.

[0029] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, any deformation made should be regarded as belonging to the protection of the present invention.

Claims

1. A differential pressure mold water cooling leak detection device, characterized in that: The invention comprises a pressure supply system (1) for providing a test pressure for a leak detection device, the pressure supply system (1) comprising a water inlet pipe (11) connected to a high-pressure water source, the water inlet pipe (11) being connected to a series device (3) for connecting a mold water distributor (2), the series device (3) comprising a series water pipe (31) connected to the water inlet pipe (11), a series water hole (32) being provided in the series device (3) corresponding to a cooling water path (21) of the mold water distributor (2), the series water hole (32) being connected to the series water pipe (31), the series water pipe (31) being connected to adjacent series devices (3) and connected to a water tank (13) via a return pipe (12).

2. A differential pressure mold water cooling leak detection device according to claim 1, characterized in that: A positioning pin (33) is provided on the series device (3) corresponding to the positioning hole (22) opened on the mold water distributor (2), and the positioning pin (33) cooperates with the pin hole of the positioning hole (22).

3. A differential pressure mold water cooling leak detection device according to claim 1, characterized in that: The series connection device (3) is connected and fixed to the mold water distributor (2) via locking bolts (23).

4. The differential pressure mold water cooling leak detection device according to claim 1, characterized in that: The pressure supply system (1) further comprises an air inlet pipe (14) for supplying compressed air to the leak detection device, wherein the air inlet pipe (14) is connected to the water inlet pipe (11).

5. The differential pressure mold water cooling leak detection device according to claim 1, characterized in that: The water inlet pipe (11) is connected to a water tank (13), and a water pump connected to the water inlet pipe (11) is arranged in the water tank (13). The water tank (13) is used as a high-pressure water source to realize water supply circulation.

6. A differential pressure mold water cooling leak detection device according to claim 5, characterized in that: The water tank (13) is provided with an observation window (131) so as to facilitate viewing of the water circulation and water level changes in the water tank (13) at any time.

7. The differential pressure mold water cooling leak detection device according to claim 1, characterized in that: A pressure gauge (15) is provided corresponding to the pressure supply system (1) for real-time monitoring of the pressure value provided by the pressure supply system (1).

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