Low-cost water unit

Abstract

The utility model discloses a low-cost water unit, which relates to the technical field of welding, and comprises a water inlet pipeline and a water return pipeline, the water inlet pipeline comprises a water inlet pipe, and a water inlet manual control valve, a water inlet filter and a water inlet automatic closing valve are sequentially arranged on the water inlet pipeline along the medium circulation direction and are communicated through the water inlet pipe; the water return pipeline comprises a water return main pipe and a water return branch pipe, a water return automatic closing valve and a water return main pipe flowmeter are sequentially installed on the water return pipeline main pipe in the medium circulation direction and communicated through the water return main pipe, and a water return branch pipe flowmeter is installed on the water return pipeline branch pipe and communicated through the water return branch pipe. The water inlet pipeline and the water return pipeline are simple in structure, free of complex branches and simple in layout, flow monitoring and control are achieved through different elements, the cost is lower than the cost of integrated flow monitoring and control, and the later maintenance and replacement cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a low-cost water unit. Background Art

[0002] During the automated welding process, the working parts of the welding robot, such as the upper and lower electrode caps, transformers, etc., will generate high temperatures, and these working parts need to be cooled to ensure the normal progress of the welding work. In the prior art, the water unit cooling control system (referred to as the water unit) connects the water inlet and return pipes to the water inlet and return of the robot welding clamp respectively, and passes the cooling water through the working parts to cool them. The water units currently used in the market have a complex structure and are expensive. At present, the automotive industry is highly competitive, and reducing production costs can give companies a competitive advantage in price. Therefore, water units with low cost, simple structure, accurate detection, and fast response are an inevitable trend in market research and development. Utility Model Content

[0003] The utility model aims to provide a low-cost water unit, simplify the structure of the water unit cooling control system, and reduce the production cost of the water unit.

[0004] To achieve the above object, the utility model provides the following technical solution: a low-cost water unit, comprising a water inlet pipeline and a water return pipeline, wherein the water inlet pipeline comprises a water inlet pipe, and a water inlet manual control valve, a water inlet filter and a water inlet automatic closing valve are sequentially installed on the water inlet pipeline along the medium flow direction and are connected through the water inlet pipe;

[0005] The return water pipeline includes a return water main pipe and a return water branch pipe, the output end of the return water main pipe is connected to the input end of the return water branch pipe, the return water main pipe is sequentially installed with a return water automatic closing valve and a return water main flow meter along the medium flow direction and connected through the return water main pipe, and the return water branch pipe is installed with a return water branch flow meter and connected through the return water branch pipe;

[0006] The return water branch flowmeter is signal-connected to the inlet and return water shut-off valve controller, and the output end of the inlet and return water shut-off valve controller is electrically connected to the inlet automatic shut-off valve and the return water automatic shut-off valve respectively.

[0007] Preferably, the water inlet pipeline and the water return pipeline are both installed on the mounting plate, and each group of water inlet pipeline and water return pipeline is integrated and installed on the bracket through the mounting plate, and the bottom of the bracket is fixed with an angle seat.

[0008] Preferably, the water inlet filter and the water inlet automatic shut-off valve are respectively arranged at two ends of the corner position of the horizontal section of the water inlet pipeline.

[0009] Preferably, the return water automatic shut-off valve and the return water main line flow meter are arranged in the horizontal section of the return water main line.

[0010] Preferably, the return branch flowmeter is arranged in the horizontal section of the return pipe branch.

[0011] The utility model has the following beneficial effects:

[0012] 1. Simple structure, no complicated branches, simple layout;

[0013] 2. Flow monitoring and control are achieved by different components, the cost is lower than the price of integrated flow monitoring and control, and the cost of subsequent maintenance and replacement is also lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Structural diagram of the water inlet and return pipes;

[0016] Figure 3 This is the principle diagram of the control system of the water inlet and return shut-off valve controller of the utility model.

[0017] In the figure: 1. Water inlet pipeline; 11. Water inlet pipe; 12. Water inlet manual control valve; 13. Water inlet filter; 14. Water inlet automatic shut-off valve; 2. Return water pipeline; 21. Return water main pipe; 22. Return water branch pipe; 23. Return water automatic shut-off valve; 24. Return water main flow meter; 25. Return water branch flow meter; 3. Inlet and return water shut-off valve controller; 4. Mounting plate; 5. Bracket; 6. Angle seat. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3 As shown, the utility model provides a technical solution: a low-cost water unit, including an inlet pipe 1 and a return pipe 2, the inlet pipe 1 and the return pipe 2 are both installed on a mounting plate 4, and each group of the inlet pipe 1 and the return pipe 2 are integrated and installed on a bracket 5 through the mounting plate 4, and the bottom of the bracket 5 is fixed with an angle seat 6;

[0020] The water inlet pipeline 1 includes a water inlet pipe 11, on which a water inlet manual control valve 12, a water inlet filter 13 and a water inlet automatic closing valve 14 are sequentially installed along the medium flow direction and are connected through the water inlet pipe 11, and the water inlet filter 13 and the water inlet automatic closing valve 14 are respectively arranged at both ends of the corner position of the horizontal section of the water inlet pipeline 1;

[0021] The return water pipeline 2 is composed of a return water main road and a branch road. There are two branch roads. The return water pipeline 2 includes a return water main pipe 21 and a return water branch pipe 22. The output end of the return water main pipe 21 of the main road is respectively connected to the input ends of the return water branch pipes 22 of the two branches. The two branches are distributed in parallel. The return water automatic closing valve 23 and the return water main road flow meter 24 are sequentially installed along the medium flow direction on the main road of the return water pipeline 2 and are connected through the return water main pipe 21. The return water automatic closing valve 23 and the return water main road flow meter 24 are arranged in the horizontal section of the main road of the return water pipeline 2. The two branches of the return water pipeline 2 are each installed with a return water branch flow meter 25 and are connected through each return water branch pipe 22. The return water branch flow meter 25 is arranged in the horizontal section of the branch of the return water pipeline 2.

[0022] The return water branch flow meter 25 is connected to the inlet and return water shut-off valve controller 3 by signal, and the output end of the inlet and return water shut-off valve controller 3 is electrically connected to the inlet automatic shut-off valve 14 and the return water automatic shut-off valve 23 respectively;

[0023] The water unit uses the return water branch flowmeter 25 and the return water main flowmeter 24 of the upper and lower electrodes to monitor the water flow in the return water circulation system;

[0024] When any of the upper and lower electrode caps of the robot welding tongs falls off or needs to be replaced or other reasons cause the return water flow to be abnormal, the return water branch flow meter 25 will display an alarm and transmit the signal to the inlet and return water shut-off valve controller 3 to control the inlet automatic shut-off valve 14 in the inlet water and the return water automatic shut-off valve 23 in the return water, thereby cutting off the water supply and return water;

[0025] When other return water branches are abnormal, the return water flow is monitored by the return water main flow meter 24; the water unit also adds a water inlet manual control valve 12 in the water inlet pipeline 1, and the water inlet is closed by human judgment.

[0026] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-cost water unit, characterized in that: It comprises a water inlet pipeline (1) and a water return pipeline (2), wherein the water inlet pipeline (1) comprises a water inlet pipe (11), and the water inlet manual control valve (12), a water inlet filter (13) and a water inlet automatic shut-off valve (14) are sequentially installed on the water inlet pipeline (1) along the medium flow direction and are connected via the water inlet pipe (11); The return water pipeline (2) comprises a return water main pipe (21) and a return water branch pipe (22); the output end of the return water main pipe (21) is connected to the input end of the return water branch pipe (22); a return water automatic closing valve (23) and a return water main flow meter (24) are sequentially installed on the main line of the return water pipeline (2) along the medium flow direction and are connected through the return water main pipe (21); a return water branch flow meter (25) is installed on the branch line of the return water pipeline (2) and is connected through the return water branch pipe (22); The return water branch flow meter (25) is signal-connected to the inlet and return water shut-off valve controller (3), and the output end of the inlet and return water shut-off valve controller (3) is electrically connected to the inlet automatic shut-off valve (14) and the return water automatic shut-off valve (23), respectively.

2. A low-cost water unit according to claim 1, characterized in that: The water inlet pipeline (1) and the water return pipeline (2) are both mounted on the mounting plate (4), and each group of water inlet pipelines (1) and water return pipelines (2) are integrated and mounted on the bracket (5) through the mounting plate (4), and the bottom of the bracket (5) is fixed with an angle seat (6).

3. A low-cost water unit according to claim 1, characterized in that: The water inlet filter (13) and the water inlet automatic shut-off valve (14) are respectively arranged at two ends of the corner position of the horizontal section of the water inlet pipeline (1).

4. A low-cost water unit according to claim 1, characterized in that: The water return automatic shut-off valve (23) and the water return main line flow meter (24) are arranged in a horizontal section of the main line of the water return pipeline (2).

5. A low-cost water unit according to claim 1, characterized in that: The return water branch flow meter (25) is arranged in the horizontal section of the return water pipeline (2) branch.

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