Detection device for stator assembly of electric pump

Abstract

The utility model discloses an electric pump stator assembly detection device which comprises a positioning tool, a special rotor assembly, a clamping tool, a detection chuck mechanism, a performance detector, a rotating speed detector and an industrial personal computer, the top of the positioning tool is used for positioning an electric pump stator, and the special rotor assembly is fixed in a cavity of the positioning tool. The clamping mechanism is used for clamping an electric pump stator, the detection chuck mechanism is used for providing electric energy for the electric pump stator, the electric pump stator drives the special rotor assembly through the electric energy, then the performance detector is used for detecting the electric pump stator, and the rotating speed detector is used for detecting the special rotor assembly. Information acquired by the performance detector and the rotating speed detector is transmitted to the industrial personal computer; the detection device designed by the utility model can realize automatic clamping and automatic detection, so that the detection efficiency is improved; the special motor rotor assembly is used for detecting the influence of the stator assembly on the performance of the electric pump, and the comprehensive detection mode is beneficial to improving the detection accuracy.

Description

Technical Field

[0001] The utility model belongs to the field of electric pump detection devices, in particular to an electric pump stator assembly detection device. Background Art

[0002] The electric pump is mainly composed of a stator, a rotor and a water-blocking sleeve assembly located between the two. The stator stacking process is relatively complex and requires high precision. Therefore, after the stator segments are assembled, performance testing is required using testing equipment to avoid large quantities of unqualified products entering subsequent processes.

[0003] Application publication number CN117607689 A discloses a motor rotor power-on detection device. This detection mechanism is not suitable for batch detection of stators, which is not conducive to improving production efficiency; and the detection content is relatively simple, which reduces the accuracy of the detection. Utility Model Content

[0004] The utility model provides a detection device for an electric pump stator assembly, aiming at improving detection efficiency and accuracy.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an electric pump stator assembly detection device, characterized in that it includes a positioning tool, a special rotor assembly, a clamping tool, a detection chuck mechanism, a performance tester, a speed tester and an industrial computer, the top of the positioning tool is used to position the electric pump stator, the special rotor assembly is fixed in the cavity of the positioning tool, the clamping mechanism is used to clamp the electric pump stator, the detection chuck mechanism is used to provide electrical energy to the electric pump stator, the electric pump stator drives the special rotor assembly through electrical energy, the performance tester is used to detect the electric pump stator, the speed tester is used to detect the special rotor assembly, and the information collected by the performance tester and the speed tester is transmitted to the industrial computer.

[0006] The above technical solution is further limited. The positioning tooling structure includes a base plate, an inner bracket, an outer bracket, a positioning column, a lifting cylinder and a cylinder connecting rod. The inner bracket and the outer bracket are fixed on the base plate. The center holes on the top surfaces of the inner bracket and the outer bracket are concentrically arranged. The inner bracket is used to fix the special rotor assembly. The positioning columns are evenly distributed around the center hole on the top surface of the outer bracket. The top of the positioning column is used to position the watertight sleeve assembly. The watertight sleeve assembly is used to position the part to be measured. The lifting cylinder is fixed in the inner bracket cavity of the positioning tooling. One end of the cylinder connecting rod is connected to the piston rod of the lifting cylinder. The other end of the cylinder connecting rod passes through the center holes of the inner bracket and the outer bracket and is rotatably connected to the special rotor assembly through a plane bearing and a center shaft.

[0007] The above technical solution is further limited. The structure of the clamping tooling includes a clamping base plate, a guide rod fixing seat, a guide rod, a left guide block, a right guide block, a left clamping jaw, a right clamping jaw and a clamping cylinder. The guide rod is fixed to the clamping base plate through the guide rod fixing seat. The middle parts of the left guide block and the right guide block are slidably connected to the guide rod. The left clamping jaw is fixedly connected to one end of the left guide block, and the right clamping jaw is fixedly connected to one end of the right guide block. The two air claws on the clamping cylinder are fixedly connected to the corresponding left guide block and right guide block respectively. The left clamping jaw and the right clamping jaw can clamp the outer circumference of the electric pump rotor through the clamping cylinder.

[0008] The above technical solution is further limited in that a clamping groove is provided on the clamping surface of the right clamping jaw of the left clamping jaw.

[0009] The above technical solution is further limited. The structure of the detection chuck mechanism includes a detection base plate, a detection lifting cylinder, a lifting bracket, and a detection component. The detection lifting cylinder is fixed on the detection base plate. The piston rod of the detection lifting cylinder is fixedly connected to the lifting bracket, and the detection component is symmetrically arranged on the lifting bracket. The structure of the detection component includes a detection cylinder, and connecting blocks are provided on the two air claws of the detection cylinder. A conductive block is provided on the other end of each connecting block. The two conductive blocks arranged opposite to each other can clamp the terminal on the rotor of the electric pump.

[0010] The above technical solution is further limited in that the clamping surface of the conductive block is serrated.

[0011] The above technical solution is further limited in that the model of the performance tester is AIP9963A-015, and the manufacturer is Shenzhen Aipu Measurement Co., Ltd.; the performance tester is used to collect the inductance, resistance, current and withstand voltage parameters of the electric pump stator.

[0012] The above technical solution is further limited in that the speed detector is a non-contact motor torque and speed measuring instrument, model SGDN-50, produced by Shanghai Shigan Industrial Co., Ltd.; the speed detector is used to collect the rotational torque and motor speed parameters of the rotor in the special rotor assembly.

[0013] The above technical solution is further improved in that a laser sensor is provided on one side of the positioning tooling, and the laser detection sensor is CX-412E (Panasonic), and the laser sensor is used to determine the presence or absence of the part to be tested and to detect the positioning accuracy of the test part.

[0014] The above technical solution is further improved in that a QR code scanner is provided on one side of the positioning tool.

[0015] Beneficial effects: The detection device designed by the utility model can realize automatic clamping and automatic detection, thereby improving the detection efficiency; using a special motor rotor assembly to detect the influence of the stator assembly on the performance of the electric pump, this comprehensive detection method is conducive to improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 It is the structural diagram of the positioning tooling.

[0018] Figure 3 yes Figure 2 Stereoscopic diagram.

[0019] Figure 4 This is the structural diagram of the clamping tooling.

[0020] Figure 5 yes Figure 4 Stereoscopic diagram.

[0021] Figure 6 It is the structural diagram of the detection chuck mechanism.

[0022] Figure 7 yes Figure 6 Stereoscopic diagram of the conductive block in the middle. DETAILED DESCRIPTION

[0023] like Figure 1 As shown, an electric pump stator assembly detection device includes a positioning tool 1, a special rotor assembly 2, a clamping tool 3, a detection chuck mechanism 4, a performance detector 5, a speed detector 6 and an industrial computer 7. The top of the positioning tool is used to position the electric pump stator, the special rotor assembly is fixed in the cavity of the positioning tool, the clamping mechanism is used to clamp the electric pump stator, the detection chuck mechanism is used to provide electric energy to the electric pump stator, the electric pump stator drives the special rotor assembly through the electric energy, the performance detector is used to detect the electric pump stator, the speed detector is used to detect the special rotor assembly, and the information collected by the performance detector and the speed detector is transmitted to the industrial computer;

[0024] like Figure 2 and Figure 3As shown, the structure of the positioning fixture 1 includes a base plate 101, an inner bracket 102, an outer bracket 103, a positioning column 104, a lifting cylinder 105 and a cylinder connecting rod 106. The inner bracket and the outer bracket are fixed to the base plate. The center holes on the top surfaces of the inner bracket and the outer bracket are concentrically arranged. The inner bracket is used to fix the special rotor assembly. The positioning columns are evenly distributed around the center hole on the top surface of the outer bracket. The step surface on the top of the positioning column is used to position the water-blocking sleeve assembly 107. The water-blocking sleeve assembly is used to position the to-be-measured element 108. The lifting cylinder is fixed to the inner bracket of the positioning fixture. In the frame cavity, one end of the cylinder connecting rod is connected to the piston rod of the lifting cylinder, and the other end of the cylinder connecting rod passes through the center holes of the inner bracket and the outer bracket and is rotatably connected to the special rotor assembly through the plane bearing and the center shaft; the rotor adopts the special rotor of Dongfeng Nano S31 electric pump; the advantages of this structure: the use of positioning columns provides versatility and is suitable for various types of water-blocking sleeve assemblies; the use of a lifting structure is conducive to the separation of the stator and rotor of the electric pump; the lifting cylinder is conducive to simplifying the structure, reducing the production cost, stabilizing the support effect, and ensuring the readiness of the inspection;

[0025] like Figure 2 As shown, the rotary connection structure is further described: the piston rod end of the lifting cylinder is connected to the rotor bracket 109 by screws, a plane bearing 1010 is installed on the rotor bracket, the center of the plane bearing is installed with a center shaft 1011 by interference fit, the special rotor assembly is installed on the center shaft, and the special rotor assembly is supported on the plane bearing to ensure stability during rotation; when the rotor to be measured is energized, the rotor rotates under the action of magnetic force; the rotor bracket and the center shaft drive the rotor to move axially through the lifting cylinder to achieve precise axial positioning of the rotor when it starts;

[0026] like Figure 4 and Figure 5 As shown, the structure of the clamping fixture 3 includes a clamping base plate 301, a guide rod fixing seat 302, a guide rod 303, a left guide block 304, a right guide block 305, a left clamping claw 306, a right clamping claw 307 and a clamping cylinder 308. The guide rod is fixed to the clamping base plate through the guide rod fixing seat. The middle parts of the left guide block and the right guide block are slidably connected to the guide rod. The left clamping claw is fixedly connected to one end of the left guide block, and the right clamping claw is fixedly connected to one end of the right guide block. The two air claws on the clamping cylinder are fixedly connected to the corresponding left guide block and right guide block respectively. The left clamping claw and the right clamping claw can clamp the outer peripheral surface of the electric pump rotor through the clamping cylinder. The advantages of this structure are: the clamping cylinder is a parallel opening and closing type air claw, and the cooperation of the guide mechanism is conducive to stabilizing the clamping effect, thereby ensuring the readiness of the detection.

[0027] like Figure 5 As shown, a clamping groove 309 is provided on the clamping surface of the right clamping jaw of the left clamping jaw, and the clamping groove further improves the versatility and is applicable to various types of electric pump rotors;

[0028] like Figure 6 As shown, the structure of the detection chuck mechanism 4 includes a detection base plate 401, a detection lifting cylinder 402, a lifting bracket 403, and a detection component. The detection lifting cylinder is fixed on the detection base plate, and the piston rod of the detection lifting cylinder is fixedly connected to the lifting bracket, and the detection component is symmetrically arranged on the lifting bracket; the structure of the detection component includes a detection cylinder 404, and the two air claws of the detection cylinder are provided with a connecting block 405, and the other end of each connecting block is provided with a conductive block 406, and the two conductive blocks arranged oppositely can clamp the terminal on the electric pump rotor; the advantages of this structure: the use of a lifting structure is conducive to improving versatility and is suitable for various types of electric pump rotors; the detection cylinder is an open and close type air claw, which is conducive to simplifying the structure, reducing the production cost, stabilizing the clamping effect, and ensuring the stability of the conductive effect;

[0029] The conductive block 406 is provided with a layer of copper plated with gold, which can improve the conductivity;

[0030] like Figure 7 As shown, the clamping surface of the conductive block 406 is in a sawtooth shape 407; the sawtooth shape increases the contact point with the stator terminal, and reduces the detection error caused by the increase of resistance due to oxidation of the contact material;

[0031] like Figure 1 As shown, the model of the performance tester 5 is AIP9963A-015, and the manufacturer is Shenzhen Aipu Measurement Co., Ltd.; the performance tester is used to collect the inductance, resistance, current and withstand voltage parameters of the electric pump stator.

[0032] like Figure 1 As shown, the speed detector 6 is a non-contact motor torque speed measuring instrument, model SGDN-50, produced by Shanghai Shigan Industrial Co., Ltd.; the speed detector is used to collect the rotation torque and motor speed parameters of the rotor in the special rotor assembly;

[0033] like Figure 1 As shown, a laser sensor 8 is provided on one side of the positioning fixture 1. The laser detection sensor is CX-412E (Panasonic). The laser sensor is used to determine whether there is a piece to be tested and to detect the positioning accuracy of the test piece. That is, the laser sensor detects whether the piece to be tested is placed in place, thereby ensuring the accuracy of the detection in one step.

[0034] like Figure 1 As shown, a two-dimensional code scanner 9 is provided on one side of the positioning tool, and the two-dimensional code scanner is used to upload the product information code to the industrial computer for information storage, so as to track the product later;

[0035] like Figure 1As shown, the laser sensor 8 and the two-dimensional code scanning gun 9 are fixed on the support rod 10.

[0036] Instructions for use of this utility model: When the electric pump stator assembly detection device is used on the production line, the positioning tool is fixed on the table surface of the stand through the bottom plate, the clamping tool is fixed on the stand through the clamping bottom plate, the clamping end of the clamping tool is horizontally arranged opposite to the positioning tool, the detection chuck mechanism is fixed on the stand through the detection bottom plate, and the conductive end of the detection chuck mechanism is vertically arranged opposite to the positioning tool. Figure 1 As shown, the special rotor assembly is first pre-installed on the cylinder connecting rod, and then the watertight sleeve assembly is positioned on the positioning fixture through the positioning column. Finally, the electric pump stator to be tested is placed on the watertight sleeve assembly, and the laser sensor detects whether the stator to be tested is in place; during testing, the clamping cylinder in the clamping fixture drives the left and right jaws to clamp the stator to be tested, and the lifting cylinder of the positioning fixture drives the special rotor assembly into the watertight sleeve assembly cavity. The detection component in the detection chuck mechanism moves downward through the detection lifting cylinder. When it moves downward to the preset position, the conductive blocks in one set of detection components clamp the positive electrode of the stator to be tested through its own detection cylinder, and the conductive blocks in another set of detection components clamp the negative electrode of the stator to be tested through its own detection cylinder; after power is turned on, the rotor rotates through the magnetic field of the stator, the performance tester is used to collect the inductance, resistance, current and withstand voltage parameters of the electric pump stator, and the speed tester is used to collect the rotational torque and motor speed parameters of the rotor in the special rotor assembly.

Claims

1. An electric pump stator assembly detection device, characterized in that: It includes a positioning tool, a special rotor assembly, a clamping tool, a detection chuck mechanism, a performance tester, a speed tester and an industrial computer. The top of the positioning tool is used to position the electric pump stator. The special rotor assembly is fixed in the cavity of the positioning tool. The clamping mechanism is used to clamp the electric pump stator. The detection chuck mechanism is used to provide electric energy to the electric pump stator. After the electric pump stator drives the special rotor assembly through electric energy, the performance tester is used to test the electric pump stator, and the speed tester is used to test the special rotor assembly. The information collected by the performance tester and the speed tester is transmitted to the industrial computer.

2. The electric pump stator assembly detection device according to claim 1, characterized in that: The structure of the positioning tooling includes a base plate, an inner bracket, an outer bracket, a positioning column, a lifting cylinder and a cylinder connecting rod. The inner bracket and the outer bracket are fixed on the base plate. The center holes on the top surfaces of the inner bracket and the outer bracket are concentrically arranged. The inner bracket is used to fix the special rotor assembly. The positioning columns are evenly distributed around the center hole on the top surface of the outer bracket. The top of the positioning column is used to position the watertight sleeve assembly. The watertight sleeve assembly is used to position the part to be measured. The lifting cylinder is fixed in the inner bracket cavity of the positioning tooling. One end of the cylinder connecting rod is connected to the piston rod of the lifting cylinder. The other end of the cylinder connecting rod passes through the center holes of the inner bracket and the outer bracket and is rotatably connected to the special rotor assembly through a plane bearing and a center shaft.

3. An electric pump stator assembly detection device according to claim 1 or 2, characterized in that: The structure of the clamping tooling includes a clamping base plate, a guide rod fixing seat, a guide rod, a left guide block, a right guide block, a left clamping jaw, a right clamping jaw and a clamping cylinder. The guide rod is fixed to the clamping base plate through the guide rod fixing seat. The middle parts of the left guide block and the right guide block are slidably connected to the guide rod. The left clamping jaw is fixedly connected to one end of the left guide block, and the right clamping jaw is fixedly connected to one end of the right guide block. The two air claws on the clamping cylinder are fixedly connected to the corresponding left guide block and right guide block respectively. The left clamping jaw and the right clamping jaw can clamp the outer peripheral surface of the electric pump rotor through the clamping cylinder. A clamping groove is provided on the clamping surface of the left clamping jaw and the right clamping jaw.

4. The electric pump stator assembly detection device according to claim 3, characterized in that: The structure of the detection chuck mechanism includes a detection base plate, a detection lifting cylinder, a lifting bracket, and a detection component. The detection lifting cylinder is fixed on the detection base plate, the piston rod of the detection lifting cylinder is fixedly connected to the lifting bracket, and the detection component is symmetrically arranged on the lifting bracket; the structure of the detection component includes a detection cylinder, and connecting blocks are provided on the two air claws of the detection cylinder, and a conductive block is provided on the other end of each connecting block. The two conductive blocks arranged opposite to each other can clamp the terminal on the rotor of the electric pump; the clamping surface of the conductive block is serrated.

5. An electric pump stator assembly detection device according to claim 1, 2 or 4, characterized in that: The speed detector is a non-contact motor torque and speed measuring instrument, and the speed detector is used to collect the rotational torque and motor speed parameters of the rotor in the special rotor assembly.

6. The electric pump stator assembly detection device according to claim 5, characterized in that: A laser sensor is provided on one side of the positioning tool, and the laser sensor is used to determine whether there is a piece to be tested and to detect the positioning accuracy of the testing piece.

7. An electric pump stator assembly detection device according to claim 1, 2, 4 or 6, characterized in that: A QR code scanner is provided on one side of the positioning tool.

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