Water pump controller load testing device and testing method

Abstract

The invention relates to the technical field of automobile engine cooling, in particular to a water pump controller load test device and a test method, a test water pump device, a water pump controller load device, a water pump controller connecting device, a water pump controller driving device and a water source device are integrated on a rack, so that centralized management is facilitated; the to-be-tested water pump controller is connected with the water pump controller load device and the water pump controller driving device through the water pump controller connecting device, then testing is carried out, the connecting precision is high, and the testing efficiency can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile engine cooling, and in particular to a water pump controller load testing device and a testing method. Background Art

[0002] The electronic water pump assembly is the core component of the automobile engine cooling system. It controls the coolant circulation through the water pump, thereby reducing the engine temperature. The electronic water pump assembly has two core components, namely the motor and the water pump controller.

[0003] After the electronic water pump assembly is assembled, it needs to be performance tested. The current industry standard adopts the electronic water pump assembly test, which is to conduct an overall load performance test on the assembled electronic water pump, including the brushless DC motor and controller PCB board. This testing method simultaneously verifies the quality of two core components: the insulation performance and rotor dynamic balance characteristics of the brushless motor winding, and the power output stability and overload protection function of the water pump controller.

[0004] During the testing process, it was found that the control board and the motor were electrically connected using soldering. When the assembly test failed, there was a risk that the entire electronic water pump assembly would be scrapped due to a failure in the water pump controller, resulting in a waste of resources. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a water pump controller load testing device and testing method.

[0006] The present invention is realized by the following technical solutions: a water pump controller load test device, comprising a frame, on which is provided, A test water pump device comprises a test water pump fixing frame, on which a test water pump is provided; The water pump controller load device includes a water pump controller mounting base, wherein the water pump controller mounting base is provided with a test pin connected to the test water pump, and the test pin is electrically connected to the water pump controller during the test process; A water pump controller connecting device, comprising a transport structure for transporting the water pump controller to a water pump controller loading device; A water pump controller driving device includes a connecting plate, on which driving pins that cooperate with the water pump controller are provided, and during the test process, the driving pins are electrically connected to the water pump controller; The water source device includes a water tank, which is connected to the test water pump.

[0007] Furthermore, the test water pump fixing frame includes a positioning seat arranged on the frame, the positioning seat is connected to a movable plate, the movable plate is provided with a test water pump fixing tool, the fixing tool includes a vertical plate connected to the movable plate, the vertical plate is provided with an opening 1 that matches the water outlet pipe of the test water pump, the movable plate is provided with an opening 2 that matches the water inlet pipe of the test water pump, a horizontal support plate is provided at the upper end of the vertical plate, the water pump controller mounting seat is provided on the upper end surface of the support plate, and the test water pump is provided on the lower end surface of the support plate.

[0008] Furthermore, the upper end of the test water pump is provided with a connecting cavity that cooperates with the support plate, the upper end of the connecting cavity is open, the lower end of the test pin extends into the connecting cavity, and the side wall of the connecting cavity is provided with a connecting hole that cooperates with the support plate.

[0009] Furthermore, the transport structure includes a vertical frame, a horizontal beam is provided at the upper end of the vertical frame, a three-axis robotic arm is provided on the horizontal beam, the working end of the three-axis robotic arm is connected to a pneumatic clamping finger, the end of the pneumatic clamping finger is provided with a clamping block, and the clamping block is provided with a horizontal groove that cooperates with the water pump controller.

[0010] Furthermore, the working end of the three-axis robotic arm is also provided with a pressing device for press-fitting the water pump controller to the water pump controller mounting seat. The pressing device includes a pressing seat, and the pressing seat is provided with a downward elastic pressure head. There are multiple elastic pressure heads, and the multiple elastic pressure heads are distributed at intervals.

[0011] A test method based on a water pump controller load test device comprises the following steps: Step 1: Use the transport structure to move the pre-assembled water pump controller to the top of the water pump controller mounting base, and then install the water pump controller on the water pump controller mounting base. After the installation is completed, the water pump controller is electrically connected to the drive pin and the test pin; Step 2: The control cabinet provides voltage and drive signals to the water pump controller through the drive pin. The water pump controller drives the test water pump through the test pin. The performance of the water pump controller is judged by detecting the flow and pressure changes at the water outlet of the test water pump.

[0012] The beneficial effects of the present invention are that the test water pump device, the water pump controller load device, the water pump controller connecting device, the water pump controller driving device, and the water source device are integrated on the rack, thereby facilitating centralized management. The water pump controller to be tested is connected to the water pump controller load device and the water pump controller driving device through the water pump controller connecting device, and then the test is carried out. The connection accuracy is high and the test efficiency can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of Example 1; Figure 2 This is a schematic diagram of the water pump controller connection device structure; Figure 3 This is a schematic diagram of the water source device structure; Figure 4 Schematic diagram of the pressing device structure; Figure 5 Schematic diagram of the positioning plate structure; Figure 6 This is a schematic diagram of the test water pump fixing bracket structure; Figure 7 This is a schematic diagram of the fixed fixture structure for testing the water pump; Figure 8 This is a schematic diagram of the water pump controller mounting base structure; Figure 9 Schematic diagram of the connecting cavity structure.

[0014] Among them: 1. Frame; 2. Vertical frame; 3. Crossbeam; 4. Three-axis robotic arm; 5. Pneumatic clamping finger; 501. Clamping part; 502. Clamping block; 503. Horizontal groove; 504. Adjustment plate; 505. Pressing seat; 506. Floating shaft; 507. Spring; 508. Elastic pressure head; 6. Connecting plate; 601. Horizontal plate; 602. Compression probe; 603. Driving pin; 7. Test water pump mounting bracket; 701. Positioning column; 702. Movable plate; 703. Handle; 704. Vertical plate; 705. Second opening; 706. Support plate; 707. Test water pump; 708. Connecting cavity; 709. Water pump controller mounting base; 710. First opening; 711. Connecting hole; 712. Input pin; 713. Output pin 8. Water source device; 801. Booster seat; 802. Water tank; 803. Water inlet; 804. Flow meter 1; 805. Water outlet; 806. Flow meter 2; 9. Water pump controller. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0017] Example 1 like Figure 1-9 As shown, a water pump controller load testing device is used to test the water pump controller 9. The water pump controller 9 includes a PCB board with control circuit components pre-installed on the PCB board, including a frame 1. The frame 1 is a plate-like structure, which is convenient for overall transportation and management.

[0018] A test water pump 707 device is installed on the frame 1, including a test water pump 707 fixing frame 7, and a test water pump 707 is installed on the test water pump 707 fixing frame 7. Specifically, the test water pump 707 fixing frame 7 includes a positioning seat installed on the frame 1, the positioning seat is connected to a movable plate 702, and the movable plate 702 is connected to a handle 703 for easy movement. The positioning seat is composed of four positioning columns 701 fixed to the movable plate 702. There is a positioning hole at the upper end of the positioning column 701, which is then fixed to the movable plate 702 through a positioning pin. The test water pump 707 is fixed to the movable plate 702 by bolts. 07 fixed tooling, the fixed tooling includes a vertical plate 704 connected to the movable plate 702, and an opening 1 710 is integrally formed on the vertical plate 704 to cooperate with the outlet pipe of the test water pump 707, and an opening 2 705 is processed on the movable plate 702 to cooperate with the water inlet pipe of the test water pump 707. A horizontal support plate 706 is fixed to the upper end of the vertical plate 704, and the test water pump 707 is connected to the lower end surface of the support plate 706 through a connecting cavity 708. The side wall of the connecting cavity 708 is processed with a connecting hole 711 connected to the support plate 706, and then connected to the support plate 706 through bolts.

[0019] A water pump controller load device is also installed on the frame 1, including a water pump controller mounting base 709, which is fixed to the upper end surface of the support plate 706. A test pin connected to the test water pump 707 is installed on the water pump controller mounting base 709. The upper end of the connecting cavity 708 is open, and the lower end of the test pin extends into the connecting cavity 708. An upward output pin 713 and an input pin 712 are installed in the connecting cavity 708. The input pin 712 and the output pin 713 are conductively connected to the corresponding test pins. During the test, the output pin 713 is electrically connected to the water pump controller 9 through the test pin.

[0020] The frame 1 is also equipped with a water pump controller 9 connecting device, including a transport structure for transporting the water pump controller 9 to the water pump controller 9 loading device. Specifically, the transport structure includes a stand 2, a crossbeam 3 is fixed to the upper end of the stand 2, a three-axis robot arm 4 is installed on the crossbeam 3, the three-axis robot arm 4 is driven by a servo motor, and the stroke is controlled by input parameters, with high control accuracy. The working end of the three-axis robot arm 4 is connected to a pneumatic clamping finger 5, which can flexibly clamp the water pump controller 9. The lower end of the pneumatic clamping finger 5 is a clamping portion 501, and the clamping portion A clamping block 502 is fixed on the inside of 501, and a transverse groove 503 is processed on the clamping block 502 to cooperate with the water pump controller 9, and then cooperate with the edge of the water pump controller 9. The working end of the three-axis robot arm 4 is also equipped with a pressing device for pressing the water pump controller 9 to the water pump controller mounting seat 709. The pressing device includes a pressing seat 505. The working end of the three-axis robot arm 4 is equipped with an adjusting plate 504 that can adjust the height. The lower end of the adjusting plate 504 is fixed to the pressing seat 505, and the height of the pressing seat 505 is adjusted by the adjusting plate 504. The seat 505 is provided with downward elastic pressure heads 508, and there are three elastic pressure heads 508. The three elastic pressure heads 508 correspond to the two sides and the middle position of the water pump controller 9, and then the water pump controller 9 is steadily pressed downward onto the water pump controller mounting seat 709. A floating shaft 506 is installed on the pressing seat 505, and the lower end of the floating shaft 506 is connected to the elastic pressure head 508. The floating shaft 506 is also provided with a spring 507, thereby improving the pressing stability. The elastic pressure head 508 is a rubber pressure head, thereby protecting the water pump controller 9. During operation, The elastic pressure head 508 presses the water pump controller 9, and then the spring 507 is compressed, and then the pneumatic clamping finger 5 moves to clamp the side of the water pump controller 9, and then the three-axis robotic arm 4 moves to move the water pump controller 9 to the top of the water pump controller mounting seat 709, and the three-axis robotic arm 4 moves downward to press the water pump controller 9 to the water pump controller mounting seat 709. During this period, the spring 507 is in a compressed state, the pneumatic clamping finger 5 moves to separate from the water pump controller 9, and the spring 507 resets to further press the water pump controller 9 to the water pump controller 9 mounting seat 709.

[0021] The frame 1 is also equipped with a water pump controller 9 driving device, including a connecting plate 6, the connecting plate 6 includes a horizontal plate body 601, and a driving pin 603 that matches the water pump controller 9 is installed on the horizontal plate body 601. The driving pin 603 is connected to the control cabinet. During the test, the driving pin 603 is electrically connected to the water pump controller 9, and then provides voltage and driving signals to the water pump controller 9. The water pump controller 9 drives the test water pump 707 to operate through the test pin. In this embodiment, the connecting plate 6 is connected to the working end of the three-axis manipulator 4, and the three-axis machine After the mechanical arm 4 presses the water pump controller 9 onto the water pump controller mounting seat 709, it continues to move, thereby driving the connecting plate 6 to move above the water pump controller 9. The three-axis mechanical arm 4 moves downward to drive the connecting plate 6 to move downward, thereby making the driving pin 603 conductively connected to the water pump controller 9. A clamping probe 602 is also installed on the horizontal plate 601. The clamping probe 602 is a micro switch. The height of the clamping probe 602 is adjusted. When the clamping probe 602 is triggered, the driving pin 603 is clamped to the water pump controller 9, thereby enabling a stable electrical connection.

[0022] A water source device 8 is also installed on the frame 1, including a water tank 802, which is connected to the test water pump 707. The water tank 802 is connected to the frame 1 through a raising seat 801 to control the height. The water tank 802 is connected to a water inlet 803 and a water outlet 805. A flow meter 1 804 is installed on the water inlet 803, and a flow meter 2 806 is installed on the water outlet 805. The water inlet 803 is connected to the water outlet pipe of the test water pump 707, and the water outlet 805 is connected to the water inlet pipe of the test water pump 707. During the test, the flow rate is detected by flow meter 1 804 and flow meter 2 806.

[0023] A test method based on a water pump controller load test device comprises the following steps: Step 1: Use the transport structure to carry the pre-assembled water pump controller 9 to the top of the water pump controller mounting base 709, and then install the water pump controller 9 on the water pump controller mounting base 709. After the installation is completed, the water pump controller 9 is electrically connected to the drive pin 603 and the test pin; In step 2, the control cabinet provides voltage and drive signals to the water pump controller 9 through the drive pin 603. The water pump controller 9 drives the test water pump 707 through the test pin to simulate various working states of the water pump. The performance of the water pump controller 9 is judged by detecting the flow changes at the water outlet of the test water pump 707.

[0024] The water pump controller 9 that fails the test is removed, thereby avoiding the overall scrapping of the electronic water pump assembly caused by the overall test after assembly. After the test is completed, the three-axis robotic arm 4 moves the water pump controller 9 out of the water pump controller mounting base 709 with high precision and high efficiency.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water pump controller load test device, characterized in that: The invention comprises a frame, on which is provided, A test water pump device comprises a test water pump fixing frame, on which a test water pump is provided; The water pump controller load device includes a water pump controller mounting base, wherein the water pump controller mounting base is provided with a test pin connected to the test water pump, and the test pin is electrically connected to the water pump controller during the test process; A water pump controller connecting device, comprising a transport structure for transporting the water pump controller to a water pump controller loading device; A water pump controller driving device includes a connecting plate, on which driving pins that cooperate with the water pump controller are provided, and during the test process, the driving pins are electrically connected to the water pump controller; The water source device includes a water tank, which is connected to the test water pump.

2. The water pump controller load testing device according to claim 1, characterized in that: The test water pump fixing frame includes a positioning seat arranged on the frame, the positioning seat is connected to a movable plate, the movable plate is provided with a test water pump fixing tooling, the fixing tooling includes a vertical plate connected to the movable plate, the vertical plate is provided with an opening 1 that matches the water outlet pipe of the test water pump, the movable plate is provided with an opening 2 that matches the water inlet pipe of the test water pump, a horizontal support plate is provided on the upper end of the vertical plate, the water pump controller mounting seat is provided on the upper end surface of the support plate, and the test water pump is provided on the lower end surface of the support plate.

3. The water pump controller load testing device according to claim 2, characterized in that: The upper end of the test water pump is provided with a connecting cavity that cooperates with the support plate. The upper end of the connecting cavity is open, the lower end of the test pin extends into the connecting cavity, and the side wall of the connecting cavity is provided with a connecting hole that cooperates with the support plate.

4. The water pump controller load testing device according to claim 3, characterized in that: The transport structure includes a vertical frame, a horizontal beam is provided at the upper end of the vertical frame, a three-axis robotic arm is provided on the horizontal beam, the working end of the three-axis robotic arm is connected to a pneumatic clamping finger, the end of the pneumatic clamping finger is provided with a clamping block, and the clamping block is provided with a horizontal groove that cooperates with the water pump controller.

5. The water pump controller load testing device according to claim 4, characterized in that: The working end of the three-axis robotic arm is also provided with a pressing device for press-fitting the water pump controller to the water pump controller mounting seat. The pressing device includes a pressing seat, and the pressing seat is provided with a downward elastic pressure head. There are multiple elastic pressure heads, and the multiple elastic pressure heads are distributed at intervals.

6. A test method based on the water pump controller load test device according to claim 5, characterized in that: The following steps are involved: Step 1: Use the transport structure to move the pre-assembled water pump controller to the top of the water pump controller mounting base, and then install the water pump controller on the water pump controller mounting base. After the installation is completed, the water pump controller is electrically connected to the drive pin and the test pin; Step 2: The control cabinet provides voltage and drive signals to the water pump controller through the drive pin. The water pump controller drives the test water pump through the test pin. The performance of the water pump controller is judged by detecting the flow change at the water outlet of the test water pump.

Images