Full-automatic caliper liquid demand testing machine

Abstract

The utility model discloses a full-automatic caliper liquid demand testing machine, which comprises a profile frame, a mounting bedplate is arranged on the top surface of the profile frame, an operating mechanism is arranged on one side of the end surface of the mounting bedplate, a safety door is arranged at the side end of the profile frame, a safety switch is arranged on one side of the front surface of the profile frame, and the operating mechanism is arranged on one side of the front surface of the profile frame. A quick plug connector is arranged at the bottom of the front face of the profile frame and provided with vehicle calipers, a hydraulic system is arranged on one side of the interior of the profile frame and comprises an oil tank, and an oil way block, a hydraulic pump, a cooling fan, a proportional overflow valve and a temperature liquid level meter are arranged on the top face of the oil tank. A pressure gauge, a high-pressure filter, a pressure sensor and a speed regulating valve are arranged on the oil path block, a flow meter is arranged on a liquid path on the oil path block, a stop valve is arranged at the side end of the flow meter, and testing calipers are arranged on one side of the top surface of the mounting bedplate. The device is high in judgment accuracy, is good in consistency, and can test the liquid demand of the calipers.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a test of the required liquid volume inside a product of a wire-controlled brake system of a caliper PV, and specifically is a machine for fully automatic testing the required liquid volume of a caliper. Background Art

[0002] With the development of the automobile industry, the requirements for active safety of automobile driving are getting higher and higher. At the same time, with the advancement of world science and technology, the requirements for automobile intelligence are increasing year by year. The required fluid volume of the brake system refers to the volume of brake fluid pumped out from the brake master cylinder when the brake fluid in the caliper reaches a certain pressure during the normal braking process of the car. It directly affects the braking effect of the car, which is reflected in the performance of the whole vehicle, such as braking reaction time, braking distance, pedal feeling, etc. A large required fluid volume will make it difficult for the brake master cylinder to apply pressure, increase the pedal stroke, and cause insufficient piston pressure in the caliper, resulting in the car's braking force not meeting the standard; a small required fluid volume will result in a small piston return amount, resulting in incomplete separation of the brake pad and the brake disc, resulting in dragging and wearing, which affects the life of the brake caliper, and will also cause a short pedal stroke and a low pedal pressure when braking. The brake pads are too hard and the foot feel is poor, which has a great impact on the driver's comfort. At present, the research on the required fluid volume of the brake system lacks theoretical and simulation basis. Based on the required fluid volume of the vehicle hydraulic brake caliper, a mathematical and statistical analysis method is used through a large amount of data to establish an empirical formula model for the required fluid volume. Based on the servo control technology, a brake caliper required fluid volume detection system is designed to realize the automatic detection of the brake caliper required fluid volume. The brake system is modeled and simulated, and the simulation curve of the caliper required fluid volume is obtained, but the influencing factors of the required fluid volume are not further analyzed. The brake system required fluid volume is modeled and simulated, and the influence of factors such as piston diameter, hard pipe, initial volume of hose, brake fluid, and equivalent elastic modulus of hose on the required fluid volume is analyzed, and the influencing factors are experimentally verified.

[0003] The caliper is an important component of the brake. The relationship between the amount of fluid required by the caliper and the increase in pressure directly affects the braking effect of the car, so a caliper PV characteristic test bench is necessary. Utility Model Content

[0004] The utility model aims to provide a fully automatic caliper fluid quantity test machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic caliper fluid volume test machine, comprising a profile frame, a mounting plate is arranged on the top surface of the profile frame, an operating mechanism is arranged on one side of the end surface of the mounting plate, the operating mechanism comprises a touch screen, an emergency stop switch, an alarm light, a start switch, and a USB interface, a safety door is arranged on the side end of the profile frame, a safety switch is arranged on the front side of the profile frame, a quick-connect connector is arranged on the bottom of the front side of the profile frame, a vehicle caliper is arranged at the quick-connect connector through a brake hose, and the profile frame A hydraulic system is arranged on one side of the interior, the hydraulic system includes an oil tank, an oil circuit block, a hydraulic pump, a cooling fan, a proportional relief valve and a temperature level gauge are arranged on the top surface of the oil tank, a pressure gauge, a high-pressure filter, a pressure sensor and a speed regulating valve are arranged on the oil circuit block, the hydraulic pump is connected to the oil circuit block, the cooling fan is connected to the oil circuit block through a liquid circuit, a flow meter is arranged on the liquid circuit of the oil circuit block, a stop valve is arranged on the side end of the flow meter, the stop valve is connected to the oil tank and the temperature level gauge through a liquid circuit, and a test caliper is arranged on one side of the top surface of the mounting plate.

[0006] Preferably, the cooling fan is kept running during the test.

[0007] Preferably, the hydraulic pump pressurizes the oil tank.

[0008] Preferably, the flow meter and the stop valve are arranged on the end surface of the profile frame.

[0009] Preferably, the liquid circuit is composed of a hydraulic oil pipe.

[0010] Preferably, a pressure sensor provided on the oil circuit block detects pressure.

[0011] Compared with the prior art, the utility model has the following beneficial effects: turn on the safety switch to power on the equipment, then connect the vehicle caliper to the quick-connect connector through the brake hose, close the safety door, press the start switch, exhaust the pipeline before testing, block the pipeline output port, open the stop valve, pre-fill and exhaust the pipeline through the hydraulic pump, exhaust the air in the pipeline, and then perform the test according to the pre-set test items. The final test results and bad items will be displayed on the touch screen;

[0012] The utility model has a compact structure, is easy to manufacture, simple to operate, has high assembly precision and good consistency, and reduces the labor intensity of operators. A mechanical pressure gauge is arranged in the system to ensure that the existence of system pressure can be observed even when power is lost. Safety valves are arranged in the drive circuit and the high-pressure circuit to ensure the safety of equipment and personnel to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is the overall main perspective structural diagram of the utility model;

[0014] Figure 2 This is the overall exploded three-dimensional structure diagram of the utility model;

[0015] Figure 3 This is a top view of the hydraulic system of the utility model;

[0016] Figure 4 It is the equipment principle diagram of the utility model;

[0017] Figure 5 It is the work flow chart of the utility model.

[0018] In the figure: 1. Profile frame; 2. Mounting table; 3. Operating mechanism; 31. Touch screen; 32. Emergency stop switch; 33. Warning light; 34. Start switch; 35. USB interface; 4. Safety door; 5. Safety switch; 6. Quick connector; 7. Vehicle caliper; 8. Hydraulic system; 81. Fuel tank; 82. Oil block; 83. Hydraulic pump; 84. Cooling fan; 85. Proportional relief valve; 86. Temperature level gauge; 87. Pressure gauge; 88. High-pressure filter; 89. Pressure sensor; 810. Speed ​​control valve; 811. Flow meter; 812. Stop valve; 9. Test caliper. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5The utility model provides a technical solution: a machine for fully automatic caliper fluid volume testing, comprising a profile frame 1, a mounting plate 2 is installed on the top surface of the profile frame 1, an operating mechanism 3 is embedded and installed in a cavity on one side of the end surface of the mounting plate 2, the operating mechanism 3 comprises a touch screen 31, an emergency stop switch 32, an alarm light 33, a start switch 34, and a USB interface 35, the emergency stop switch 32, the alarm light 33, the start switch 34, and the USB interface 35 are horizontally and sequentially distributed at the lower part of the touch screen 31, a safety door 4 is rotatably hingedly installed at the side end of the profile frame 1, a safety switch 5 is installed on one side of the front of the profile frame 1, a quick connector 6 is installed at the bottom of the front of the profile frame 1, a vehicle caliper 7 is connected to the quick connector 6 through a brake hose, a hydraulic system 8 is installed on one side of the interior of the profile frame 1, the hydraulic system 8 comprises an oil tank 81, and an oil block is installed on the top surface of the oil tank 81 82, hydraulic pump 83, cooling fan 84, proportional relief valve 85 and temperature level gauge 86. The oil circuit block 82 is equipped with a pressure gauge 87, a high-pressure filter 88, a pressure sensor 89 and a speed regulating valve 810. The hydraulic pump 83 is connected to the oil circuit block 82, and the cooling fan 84 is connected to the oil circuit block 82 through a liquid circuit. The liquid circuit on the oil circuit block 82 is equipped with a flow meter 811, and a stop valve 812 is installed on the side end of the flow meter 811. The stop valve 812 is connected to the oil tank 81 and the temperature level gauge 86 through a liquid circuit. A test caliper 9 is installed on one side of the top surface of the mounting plate 2. The hydraulic oil inside the oil tank 81 enters the oil circuit block 82 through the hydraulic pump 83. In the oil circuit inside the oil circuit block 82, the oil passes through the pressure gauge 87, the high-pressure filter 88, the speed regulating valve 810, and the proportional relief valve 85 and flows from the liquid circuit to the flow meter 811, the solenoid valve, the oil pipe, the joint, the brake oil pipe, and flows into the test caliper 9.

[0021] The cooling fan 84 is kept running during the test, and the cooling effect of the hydraulic oil is achieved by accelerating the airflow; the hydraulic pump 83 pressurizes the oil tank 81, and the hydraulic oil inside the oil tank 81 is pressed into the oil circuit inside the oil circuit block 82; the flow meter 811 and the stop valve 812 are installed on the end face of the profile frame 1; the hydraulic circuit is composed of hydraulic oil pipes; the pressure sensor 89 installed on the oil circuit block 82 detects the pressure, and if the pressure is higher than 180 bar, the hydraulic oil will flow back to the oil tank 81 through the high-pressure safety valve.

[0022] Working principle: When the utility model is in use, turn on the safety switch 5 to power on the equipment, then connect the vehicle caliper 7 to the quick connector 6 through the brake hose, close the safety door 4, press the start switch 34, and exhaust the pipeline before testing, block the pipeline output port, open the stop valve 812, pre-fill and exhaust the pipeline through the hydraulic pump 83, and complete the preparation work of exhausting the air in the pipeline. Then, the hydraulic pump 83 is used to pressurize the oil tank 81, and the hydraulic oil is pressed into the oil circuit block 82. According to the internal oil circuit of the oil circuit block 82, it passes through the pressure gauge 87, the high-pressure filter 88, the speed regulating valve 810, the proportional relief valve 85, and then flows through the hydraulic oil pipe connected to the oil circuit block 82 and flows to the flow The hydraulic oil flows into the test caliper 9 through the meter 811, the solenoid valve, the oil pipe, the joint, the brake oil pipe, and the test caliper 9. The hydraulic oil slowly applies pressure to the test caliper 9 until the test effect is achieved. The hydraulic oil flows out and returns to the oil tank 81 through the brake oil pipe, the joint, the oil pipe, and the stop valve 812. During the circulation of the hydraulic oil, the cooling fan 84 keeps working to achieve the effect of cooling the hydraulic oil by accelerating the airflow. The pressure sensor 89 installed on the oil circuit block 82 detects the pressure. If the pressure is higher than 180 bar, the oil will return to the oil tank 81 through the high-pressure safety valve to complete the test requirements. The final test results and bad items will be displayed on the touch screen 31, which has the advantages of simple operation, easy use and good use effect.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 device.

[0024] 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 fully automatic caliper fluid volume test machine, comprising a profile frame (1), characterized in that: The top surface of the profile frame (1) is provided with a mounting plate (2), and an operating mechanism (3) is provided on one side of the end surface of the mounting plate (2). The operating mechanism (3) includes a touch screen (31), an emergency stop switch (32), an alarm light (33), a start switch (34), and a USB interface (35). A safety door (4) is provided on the side end of the profile frame (1), and a safety switch (5) is provided on the front side of the profile frame (1). A quick-connect connector (6) is provided at the bottom of the front side of the profile frame (1), and a vehicle caliper (7) is provided at the quick-connect connector (6) through a brake hose. A hydraulic system (8) is provided on one side of the interior of the profile frame (1), and the hydraulic system (8) includes an oil tank (81). The top surface of the oil tank (81) is provided with a An oil circuit block (82), a hydraulic pump (83), a cooling fan (84), a proportional overflow valve (85) and a temperature level gauge (86) are arranged. The oil circuit block (82) is provided with a pressure gauge (87), a high-pressure filter (88), a pressure sensor (89) and a speed regulating valve (810). The hydraulic pump (83) is connected to the oil circuit block (82). The cooling fan (84) is connected to the oil circuit block (82) through a liquid circuit. The liquid circuit on the oil circuit block (82) is provided with a flow meter (811). A stop valve (812) is arranged at a side end of the flow meter (811). The stop valve (812) is connected to the oil tank (81) and the temperature level gauge (86) through a liquid circuit. A test caliper (9) is arranged on one side of the top surface of the mounting plate (2).

2. A machine for fully automatic caliper fluid requirement testing according to claim 1, characterized in that: The cooling fan (84) is always started and running during the test.

3. A machine for fully automatic caliper fluid requirement testing according to claim 1, characterized in that: The hydraulic pump (83) increases the pressure of the oil tank (81).

4. The machine for fully automatic caliper fluid requirement test according to claim 1, characterized in that: The flow meter (811) and the stop valve (812) are arranged on the end surface of the profile frame (1).

5. The machine for fully automatic caliper fluid volume test according to claim 1, characterized in that: The liquid circuit is composed of a hydraulic oil pipe.

6. The machine for fully automatic caliper fluid requirement test according to claim 1, characterized in that: The pressure sensor (89) arranged on the oil circuit block (82) detects the pressure.

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