Flow testing equipment for automobile part electromagnetic valve production line

Abstract

The utility model relates to the field of electromagnetic valve testing, in particular to flow testing equipment for an automobile part electromagnetic valve production line, which is used for solving the problems that the positioning is unstable when a valve body is manually fixed and the valve body is easily damaged when a coil is manually inserted. The equipment comprises a rack, a valve body positioning seat and two groups of mechanisms, wherein the clamping mechanisms drive clamping frames which symmetrically slide through pneumatic clamping jaw cylinders, and a valve body is fixed from two sides; the downward pressing mechanism pushes a support with a guide column through an air cylinder, and the coil is vertically pressed into the valve body. The valve body positioning seat integrates a hydraulic oil way and a flow sensor, and the performance of the electromagnetic valve is judged by detecting oil way flow. According to the equipment, manual operation is replaced by mechanical clamping and pressure assembly, the valve body positioning precision and coil assembly consistency are improved, and the flow test stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve testing technology, and in particular to a flow testing device for an automotive parts electromagnetic valve production line. Background Technology

[0002] Solenoid valve flow testing equipment is used in the production line of solenoid valves for automotive parts. After the solenoid valves have gone through multiple processes and the components are assembled, they enter the final flow testing station. Only after passing the flow test can they be removed from the production line.

[0003] Currently, existing flow testing equipment used in automotive component solenoid valve production lines typically requires manual fixing of the solenoid valve via threads and manual insertion of the coil into the valve body. While this completes basic test preparation to some extent, it cannot precisely control the fixing force and positional accuracy of the solenoid valve body, easily leading to positioning deviations and unstable fixing. At the same time, manual insertion of the coil is also difficult to ensure uniform force and accurate positioning, often resulting in scratches on the inner wall of the valve body and improper fit. This leads to low assembly accuracy and poor efficiency of the solenoid valve, which in turn seriously affects the accuracy and stability of the flow test results. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where manually fixing solenoid valves with threads is not only unreliable and often results in incomplete locking, but also easily scratches the inner wall of the valve body when inserting the coil and frequently results in improper fit between the coil and the valve body. Therefore, this invention proposes a flow testing device for automotive parts solenoid valve production lines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flow testing device for an automotive parts solenoid valve production line, comprising:

[0007] The frame, solenoid valve body, and coil are included. An indicator light, a precision pressure reducing valve, and a hub are electrically connected to the top of the frame. A valve body positioning seat is fixedly installed at the center of the bottom of the frame.

[0008] The frame is equipped with a clamping mechanism for clamping and positioning the solenoid valve body. The frame is also equipped with a pressing mechanism for pressing the coil into the solenoid valve body.

[0009] In one possible design, the clamping mechanism includes a fixed frame that is fixedly mounted on the frame and located behind the valve body positioning seat. Two clamping frames are symmetrically slidably arranged on the front side of the fixed frame. A pneumatic gripper cylinder is embedded in one side of one of the clamping frames, and the output end of the pneumatic gripper cylinder is fixedly connected to the other clamping frame.

[0010] In one possible design, the pressing mechanism includes two guide columns symmetrically fixedly disposed on the top and bottom walls of the frame, with the same pressing frame slidably disposed on the outside of the two guide columns, a pressing cylinder fixedly disposed on the top of the frame, the output end of the pressing cylinder being fixedly connected to the top of the pressing frame, and a coil fixedly disposed on the bottom end of the pressing frame.

[0011] In one possible design, the top of the valve body positioning seat has a placement groove, and the bottom of the valve body positioning seat is fixedly connected to a hydraulic oil inlet connector and a hydraulic oil outlet connector. The interior of the valve body positioning seat has an oil inlet hole and an oil outlet hole that communicate with the hydraulic oil inlet connector and the hydraulic oil outlet connector, respectively. The oil inlet hole communicates with the placement groove. On one side of the valve body positioning seat, at the hydraulic oil inlet connector and the hydraulic oil outlet connector, two flow sensors are respectively installed and communicated with the two. The solenoid valve body is placed in the placement groove.

[0012] In one possible design, a protective door is slidably mounted on the front side of the frame, and a cylinder is fixedly mounted on the top of the frame, with the output end of the cylinder fixedly connected to one side of the protective door.

[0013] In one possible design, a support frame is fixedly installed on the side of the frame near the valve body positioning seat, and a photoelectric sensor is fixedly installed on one side of the support frame.

[0014] In this application, when starting to use the equipment, the operator first connects the hydraulic oil inlet connector to the hydraulic pump, then connects the hydraulic oil outlet connector to the corresponding hydraulic oil pipe, and then connects the entire equipment to the power and air supply. Then, the solenoid valve body to be tested is placed in the placement slot of the valve body positioning seat. The photoelectric sensor monitors in real time whether there is a solenoid valve body in the valve body positioning seat. When the photoelectric sensor detects that there is a solenoid valve body in the valve body positioning seat, the operator can press the button to start the cylinder, so that its output end extends and pushes the protective door down to block the working space of the frame to ensure safety during the test.

[0015] Then, the pneumatic gripper cylinder is activated, causing its output end to retract, which drives the two gripping frames to slide towards each other on the fixed frame, thereby clamping and fixing the solenoid valve body placed on the valve body positioning seat, and thus positioning the solenoid valve body. Then, the pressure cylinder is activated, causing its output end to extend, pushing the pressure frame to move downward on the guide column. As the pressure frame moves downward, it drives the coil on it to move closer to the solenoid valve body until the coil is fully inserted into the solenoid valve body. At this time, the bottom end of the pressure frame is in close contact with the gripping frame, ensuring a tight connection between the coil and the solenoid valve body.

[0016] At this time, the hydraulic pump is started, and hydraulic oil is input through the hydraulic oil inlet connector, so that the hydraulic oil at the inlet of the solenoid valve body reaches the specified pressure. Then, the coil is energized. After the coil is energized, the valve core in the solenoid valve body will rise, so that the valve opens. At this time, the hydraulic oil enters from the inlet of the solenoid valve body and is discharged from the outlet of the holes around the bottom of the solenoid valve body in a certain flow. The discharged hydraulic oil enters the oil outlet and is discharged into the main oil tank through the oil pipe connected to the hydraulic oil outlet connector.

[0017] During the flow of hydraulic oil, a flow sensor installed on one side of the valve body positioning seat records the flow rate change per unit time and generates a flow rate curve. Based on the flow rate curve, the system automatically determines the test result as OK or NG and displays the test result through an indicator light.

[0018] After the test is completed, the hydraulic pump stops working and releases pressure. The pneumatic gripper cylinder is activated to extend its output end, opening the two grippers and releasing the solenoid valve body. The downward pressure cylinder is activated to retract its output end, causing the downward pressure frame and coil to rise and reset. At the same time, the cylinder is activated to retract its output end, causing the protective door to open to the upper end. At this point, the operator removes the tested solenoid valve body and repeats the above steps to test the next solenoid valve body.

[0019] This utility model has the following beneficial effects:

[0020] The clamping mechanism in this invention can securely and accurately clamp and fix the solenoid valve body, ensuring the stability of the solenoid valve body during the test and avoiding the impact of positional deviation on the accuracy of the test results. At the same time, it can quickly realize the positioning and release of the solenoid valve body, effectively improving the efficiency and reliability of solenoid valve flow testing.

[0021] In this invention, the pressing mechanism can accurately and smoothly press the coil into the solenoid valve body, ensuring a tight and accurate assembly connection between the coil and the solenoid valve body. This guarantees that the solenoid valve can respond normally and form an effective hydraulic passage during testing, while also helping to improve the consistency and efficiency of solenoid valve flow testing and reduce human operation errors.

[0022] In this invention, the combination of a clamping mechanism and a pressing mechanism not only clamps and fixes the solenoid valve body, avoiding positioning deviations or unstable fixation caused by manual operation, but also smoothly and accurately presses the coil into the solenoid valve body, preventing manual insertion from scratching the inner wall and improper fit, thereby improving the precision and efficiency of solenoid valve assembly and ensuring the accuracy and stability of flow test results. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a flow testing device for an automotive parts solenoid valve production line proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the internal structure of the frame of a flow testing device for an automotive parts solenoid valve production line proposed in this utility model.

[0025] Figure 3 This is an enlarged structural diagram of part A of a flow testing device for an automotive parts solenoid valve production line proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the valve body positioning seat of a flow testing device for an automotive parts solenoid valve production line proposed in this utility model.

[0027] In the diagram: 1. Frame; 2. Indicator light; 3. Precision pressure reducing valve; 4. Hub; 5. Valve body positioning seat; 6. Pressure cylinder; 7. Guide column; 8. Pressure frame; 9. Coil; 10. Fixing frame; 11. Clamping frame; 12. Pneumatic gripper cylinder; 13. Hydraulic oil inlet connector; 14. Hydraulic oil outlet connector; 15. Oil inlet hole; 16. Oil outlet hole; 17. Placement slot; 18. Solenoid valve body; 19. Protective door; 20. Cylinder; 21. Photoelectric sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In one embodiment: Refer to Figure 1-4 A testing device, comprising:

[0030] The equipment consists of a frame 1, a solenoid valve body 18, and a coil 9. The frame 1 serves as the supporting structure for the entire equipment. An indicator light 2, a precision pressure reducing valve 3, and a hub 4 are fixedly installed on its top. The indicator light 2 is connected to the equipment control system via a signal line to visually display the test results. For example, a green light indicates that the test has passed (OK), and a red light indicates that the test has failed (NG). The precision pressure reducing valve 3 is connected to the hydraulic oil pipeline. By adjusting the opening of the internal valve core, the pressure of the hydraulic oil entering the equipment is precisely controlled to ensure that the pressure is stable and meets the requirements during the test. The hub 4 serves as the signal transmission hub, collecting and distributing the signal lines of various electrical components on the frame 1, such as the indicator light 2, the pneumatic gripper cylinder 12, the cylinder 20, the solenoid valve of the pressure cylinder 6, the flow sensor, and the photoelectric sensor 21, to achieve centralized signal transmission and control.

[0031] The clamping mechanism is mounted on the frame 1 and located behind the valve body positioning seat 5. The mechanism includes a fixed frame 10 and two clamping frames 11. The fixed frame 10 is fixedly mounted on the frame 1, providing a mounting base for the clamping frames 11. The two clamping frames 11 are symmetrically slidably arranged on the front side of the fixed frame 10. A pneumatic gripper cylinder 12 is embedded in one side of one of the clamping frames 11. The output end of the pneumatic gripper cylinder 12 is fixedly connected to the other clamping frame 11. When it is necessary to clamp the solenoid valve body 18, the control system sends a signal to the pneumatic gripper cylinder 12. The output end of the pneumatic gripper cylinder 12 retracts, causing the two clamping frames 11 to slide towards each other on the fixed frame 10, thereby clamping and fixing the solenoid valve body 18 placed on the valve body positioning seat 5, ensuring that the solenoid valve body 18 is stable in position during the test.

[0032] The pressing mechanism is also mounted on the frame 1 and is used to press the coil 9 into the solenoid valve body 18. This mechanism includes two guide posts 7, a pressing frame 8, and a pressing cylinder 6. The two guide posts 7 are symmetrically fixed between the top and bottom walls of the frame 1 to guide the movement of the pressing frame 8. The pressing frame 8 is slidably mounted outside the two guide posts 7. The coil 9 is fixedly mounted at the bottom end of the pressing frame 8. The pressing cylinder 6 is fixedly mounted on the top of the frame 1, and its output end is fixedly connected to the top of the pressing frame 8. When it is necessary to press the coil 9 into the solenoid valve body 18, the control system sends a signal to the pressing cylinder 6. The output end of the pressing cylinder 6 extends and pushes the pressing frame 8 to move downward on the guide posts 7, so that the coil 9 is smoothly and accurately pressed into the solenoid valve body 18.

[0033] The valve body positioning seat 5 is fixedly installed at the bottom center of the frame 1. A placement groove 17 is opened on its top for placing the solenoid valve body 18. The bottom of the valve body positioning seat 5 is fixedly connected to the hydraulic oil inlet connector 13 and the hydraulic oil outlet connector 14. The inside is provided with an oil inlet hole 15 and an oil outlet hole 16 that are connected to the hydraulic oil inlet connector 13 and the hydraulic oil outlet connector 14. The oil inlet hole 15 is connected to the placement groove 17. The oil inlet hole 15 and the oil outlet hole 16 share a cavity inside the valve body positioning seat 5. The hydraulic oil enters the oil inlet hole 15 through the hydraulic oil inlet connector 13, and then enters the solenoid valve body 18. After passing through the solenoid valve body 18, it is discharged from the outlet hole around its bottom and enters the oil outlet hole 16. Finally, it is discharged into the main oil tank through the oil pipe connected to the hydraulic oil outlet connector 14. Two flow sensors are installed at the hydraulic oil inlet connector 13 and the hydraulic oil outlet connector 14 respectively. The flow sensors are connected to the hub 4 through signal lines to monitor the change in hydraulic oil flow in real time and transmit the data to the control system for analysis and processing.

[0034] A support frame is fixedly installed on one side of the frame 1 near the valve body positioning seat 5. A photoelectric sensor 21 is fixedly installed on one side of the support frame. The photoelectric sensor 21 is connected to the hub 4 through a signal line and is used to monitor in real time whether there is a solenoid valve body 18 in the valve body positioning seat 5. When the solenoid valve body 18 is detected, the photoelectric sensor 21 sends a signal to the control system, and the control system starts the subsequent test process according to the preset program.

[0035] This application can be used in the field of flow testing equipment for automotive parts solenoid valve production lines, and can also be used in other fields applicable to this application.

[0036] In another embodiment: Refer to Figure 1 A flow testing device for an automotive parts solenoid valve production line is described. This device is applied to the field of solenoid valve technology. A protective door 19 is slidably installed on the front side of the frame 1 to shield the working space of the frame 1 during testing, ensuring the safety of the operators. A cylinder 20 is fixedly installed on the top of the frame 1. The output end of the cylinder 20 is fixedly connected to one side of the protective door 19. When the protective door 19 needs to be closed, the control system sends a signal to the cylinder 20, causing the output end of the cylinder 20 to extend and push the protective door 19 down. When the protective door 19 needs to be opened, the output end of the cylinder 20 retracts, causing the protective door 19 to rise.

[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of indicator light 2, precision pressure reducing valve 3, hub 4, pressing cylinder 6, coil 9, pneumatic gripper cylinder 12, cylinder 20 and photoelectric sensor 21 are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flow testing device for an automotive parts solenoid valve production line, characterized in that, include: The frame (1), the solenoid valve body (18) and the coil (9) are respectively electrically connected to the top of the frame (1), the indicator light (2), the precision pressure reducing valve (3) and the hub (4), and the valve body positioning seat (5) is fixedly installed at the center of the bottom of the frame (1). The frame (1) is provided with a clamping mechanism for clamping and positioning the solenoid valve body (18). The frame (1) is also provided with a pressing mechanism for pressing the coil (9) into the solenoid valve body (18).

2. The flow testing equipment for an automotive parts solenoid valve production line according to claim 1, characterized in that, The clamping mechanism includes a fixed frame (10) fixedly mounted on the frame (1) and located behind the valve body positioning seat (5). Two clamping frames (11) are symmetrically slidably mounted on the front side of the fixed frame (10). A pneumatic gripper cylinder (12) is embedded in one side of one of the clamping frames (11). The output end of the pneumatic gripper cylinder (12) is fixedly connected to the other clamping frame (11).

3. The flow testing equipment for an automotive parts solenoid valve production line according to claim 1, characterized in that, The pressing mechanism includes two guide columns (7) symmetrically fixedly arranged on the top and bottom walls of the frame (1). The same pressing frame (8) is slidably arranged on the outside of the two guide columns (7). A pressing cylinder (6) is fixedly arranged on the top of the frame (1). The output end of the pressing cylinder (6) is fixedly connected to the top of the pressing frame (8). The coil (9) is fixedly arranged at the bottom of the pressing frame (8).

4. The flow testing equipment for an automotive parts solenoid valve production line according to claim 1, characterized in that, The valve body positioning seat (5) has a placement groove (17) on its top. The bottom of the valve body positioning seat (5) is fixedly connected to a hydraulic oil inlet connector (13) and a hydraulic oil outlet connector (14). The valve body positioning seat (5) has an oil inlet hole (15) and an oil outlet hole (16) connected to the hydraulic oil inlet connector (13) and the hydraulic oil outlet connector (14). The oil inlet hole (15) is connected to the placement groove (17). On one side of the valve body positioning seat (5), two flow sensors are installed and connected to the hydraulic oil inlet connector (13) and the hydraulic oil outlet connector (14). The solenoid valve body (18) is placed in the placement groove (17).

5. A flow testing device for an automotive parts solenoid valve production line according to claim 1, characterized in that, A protective door (19) is slidably provided on the front side of the frame (1), and a cylinder (20) is fixedly provided on the top of the frame (1). The output end of the cylinder (20) is fixedly connected to one side of the protective door (19).

6. The flow testing equipment for an automotive parts solenoid valve production line according to claim 4, characterized in that, A support frame is fixedly installed on the side of the frame (1) near the valve body positioning seat (5), and a photoelectric sensor (21) is fixedly installed on one side of the support frame.

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