Detection jig for outer rotor motor drive control board

Abstract

The utility model discloses a detection jig of outer rotor motor drive control panel, its characterized in that: including work table, positioning tool, compression assembly and test motor, positioning tool sets up on the table top of work table, including bottom plate, top plate and multiple sets of support column assembly, bottom plate is connected with top plate through multiple sets of support column assembly, has the bearing mounting chamber that opens downward and extends upward on the top plate, and still has drive board positioning slot on the upper surface of top plate, test motor is located between bottom plate and top plate, and the pivot of test motor extends into bearing mounting chamber, makes the bearing on pivot and bearing mounting chamber interlock, compression assembly installs on the stand of work table, is located above positioning tool, can compress the drive board in drive board positioning slot. The utility model discloses high flexibility of use can reduce detection cost.

Description

Technical Field

[0001] This utility model relates to the field of motor drive board testing, and in particular to a testing fixture for an external rotor motor drive control board. Background Technology

[0002] In existing technology, before the drive board installed inside the motor is installed, a testing fixture is used to test all its functions to ensure they are working properly. Only after passing the test is the drive board installed into the motor to guarantee a high pass rate. Currently, during drive board testing, a positioning fixture is used to fix the test motor and drive board onto the fixture's worktable. The testing circuit in the fixture is electrically connected to the drive board and motor, causing the motor to operate under the drive board's power. Simultaneously, the testing circuit detects various parameters of the drive board, such as voltage and current, and checks whether each function is working properly.

[0003] In existing technologies, the worktable of the tooling and fixture used for positioning drive boards and motors has a fixed structure, which can only be used to inspect one type of drive board. When different types or shapes of drive boards need to be inspected, the entire fixture needs to be replaced. Therefore, multiple fixtures are required to position and inspect drive boards of different shapes, resulting in high inspection costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a testing fixture for an external rotor motor drive control board, which offers high flexibility and reduces testing costs.

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

[0006] A testing fixture for an external rotor motor drive control board, characterized in that it includes a worktable, a positioning fixture, a clamping assembly, and a test motor;

[0007] The positioning fixture is set on the workbench and includes a base plate, a top plate and multiple sets of support column assemblies. The base plate and the top plate are connected by multiple sets of support column assemblies. The top plate has a bearing mounting chamber that opens downward and extends upward. The upper surface of the top plate also has a drive plate positioning groove.

[0008] The test motor is located between the bottom plate and the top plate, and the shaft of the test motor extends into the bearing mounting chamber, so that the bearing on the shaft engages with the bearing mounting chamber.

[0009] The clamping assembly is installed on the upright of the workbench, above the positioning fixture, and can clamp the drive plate in the positioning slot of the drive plate.

[0010] Preferably, the support column assembly includes a support column and a sleeve, the sleeve being fitted onto the support column, the lower end of the support column being fixed to the base plate, and the upper end passing through the top plate and connected to a fastener, the fastener pressing the top plate against the upper end of the sleeve.

[0011] Preferably, the fastener is threadedly connected to the upper end of the support column, and the lower end of the support column is threadedly connected to the base plate.

[0012] Preferably, the bearing mounting chamber is a cylindrical structure with an opening facing downwards.

[0013] Preferably, the clamping assembly includes clamps and a pressure plate, the pressure plate being connected to the clamp's pressure bar and located above the top plate.

[0014] The advantages of this utility model are:

[0015] 1. The top plate with the corresponding driving board positioning groove can be replaced according to the size and shape of the driving board being tested, without having to replace the entire testing fixture. This provides high flexibility and reduces the need for stockpiling various types of testing fixtures, thereby reducing testing costs.

[0016] 2. The positioning fixture has a flexible structure and can be used with different types of testing fixtures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the testing fixture for the external rotor motor drive control board provided in this embodiment;

[0018] Figure 2 This is a schematic diagram of the positioning fixture provided in this embodiment. Detailed Implementation

[0019] Combination Figures 1 to 2 The testing fixture for the external rotor motor drive control board of this utility model will be further described.

[0020] A testing fixture for an external rotor motor drive control board, characterized in that it includes a worktable 1, a positioning fixture 3, a clamping assembly 2, and a test motor 4.

[0021] The workbench 1 has a tabletop 12 and a stand 11. The workbench 1 also includes a detection circuit for testing the drive board and a power supply circuit for powering the test motor. The front of the stand 11 has multiple mounting ports, and multiple displays from the detection circuit are installed in these ports for the testing personnel to observe various parameters such as current, voltage, power, and speed. It should be noted that the detection circuit and power supply circuit are existing technologies; therefore, their specific implementation will not be described in detail in this embodiment.

[0022] The positioning fixture 3 is mounted on the table surface 12 of the workbench 1 and includes a base plate 32, a top plate 31, and four sets of support column assemblies 33. The base plate 32 and the top plate 31 are connected by the four sets of support column assemblies 33. That is, the top plate 31 is parallel to the bottom plate 32, and the four sets of support column assemblies 33 are respectively connected to the four corners of the top plate 31 and the base plate 32, forming a space between the top plate 31 and the base plate 32 for accommodating the test motor 4. The top plate 31 has a bearing mounting chamber 311 that opens downward and extends upward. The upper surface of the top plate 31 also has a drive plate positioning groove 312, in which pin holes 3121 are opened, allowing the pins of the drive plate to pass through the top plate 31 and connect to the test motor.

[0023] In the above structure, the base plate 32 is fixed to the worktable 1 surface 12 by bolts, so that the entire positioning fixture is fixed on the worktable surface, which has the characteristics of convenient assembly and disassembly, so that the positioning fixture can be easily installed and replaced on different testing fixtures.

[0024] The test motor 4 is located between the base plate 32 and the top plate 31. The shaft of the test motor 4 extends into the bearing mounting chamber 311, so that the bearing on the test motor shaft engages with the bearing mounting chamber 311, that is, the outer ring of the bearing engages with the inner wall of the bearing mounting chamber 311, so that the inner ring of the bearing and the rotor of the test motor can rotate freely.

[0025] The clamping assembly 2 is installed on the stand 11 of the workbench 1, above the positioning fixture 3, and can clamp the drive plate in the drive plate positioning groove 312 to ensure the stability of the test.

[0026] The support column assembly 33 includes a support column 331 and a sleeve 332. The sleeve 332 is fitted onto the support column 331. The lower end of the support column 331 is fixed to the base plate 32, and the upper end passes through the top plate 31 and is connected to a fastener. The fastener presses the top plate 31 against the upper end of the sleeve, so that the top plate 31 and the base plate 32 are relatively fixed.

[0027] The fastener is threadedly connected to the upper end of the support column 331, meaning that the upper side wall of the support column 331 has external threads. The fastener is a nut, which is tightened by engaging the external threads on the upper end of the support column 331. The lower end of the support column 331 is threadedly connected to the base plate 32, meaning that the base plate 32 has threaded holes at its four corners, and the lower side wall of the support column 331 has external threads, allowing the lower end of the support column 331 to be screwed into the threaded holes. This structure facilitates the disassembly, assembly, and replacement of the base plate 32, top plate 31, sleeve 332, and support column 331.

[0028] As another way to connect the support column 331 and the base plate 32, the lower end of the support column 331 and the base plate 32 can also be welded or integrally formed.

[0029] The bearing mounting chamber 311 is a cylindrical structure with an opening facing downwards. The entire cylindrical structure is located on the upper side of the top plate 31. The upper end of the cylindrical structure is a sealed structure that hides the shaft of the test motor.

[0030] The clamping assembly 2 includes a clamp 21 and a pressure plate 22. The pressure plate 22 is connected to the pressure rod of the clamp 21, located above the top plate 31 and parallel to the top plate 31. The clamp 21 can be used to move the pressure plate 22 downward, so that the pressure plate 22 presses against the upper surface of the drive plate, fixing the drive plate in the drive plate positioning groove.

[0031] In the aforementioned clamping assembly, the clamps can be tools with telescopic functions, such as cylinders or push rod motors.

[0032] The pressure plate 22 has multiple probes, which are connected to the detection circuit. When the pressure plate 22 presses against the drive plate, the probes contact the detection points on the drive plate, thus connecting the drive plate with the detection circuit.

[0033] During testing, the corresponding test motor and top plate 31 are selected according to the shape and model of the drive board to be tested. The top plate 31 is locked onto the four support column assemblies 33 with fasteners. The drive board to be tested is placed in the drive board positioning slot 312. The pins of the drive board are connected to the test motor through the pin holes 3121. The pressure plate 22 is pressed down, so that the probes on the pressure plate 22 align and connect with the test points on the drive board. The fixture is then turned on, and the drive board drives the test motor. Various operating parameters of the drive board, such as voltage, current, power, and speed, are displayed on the displays in the testing circuit, allowing the user to know whether the drive board is qualified. When it is necessary to test drive boards of different sizes and shapes, simply loosen the fasteners and replace the top plate 31. The operation is convenient and highly flexible.

[0034] Unless otherwise specified, in this utility model, terms such as "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0035] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A detection jig for an outer rotor motor drive control board, characterized by: Includes a worktable, positioning fixtures, clamping components, and a test motor; The positioning fixture is set on the workbench and includes a base plate, a top plate and multiple sets of support column assemblies. The base plate and the top plate are connected by multiple sets of support column assemblies. The top plate has a bearing mounting chamber that opens downward and extends upward. The upper surface of the top plate also has a drive plate positioning groove. The test motor is located between the base plate and the top plate, and the shaft of the test motor extends into the bearing mounting chamber, so that the bearing on the shaft engages with the bearing mounting chamber. The clamping assembly is installed on the upright of the workbench, above the positioning fixture, and can clamp the drive plate in the positioning slot of the drive plate.

2. The detection fixture for the outer rotor motor drive control board according to claim 1, characterized in that: The support column assembly includes a support column and a sleeve. The sleeve is fitted onto the support column. The lower end of the support column is fixed to the base plate, and the upper end passes through the top plate and is connected to a fastener. The fastener presses the top plate tightly against the upper end of the sleeve.

3. The testing fixture for the external rotor motor drive control board according to claim 2, characterized in that: The fastener is threadedly connected to the upper end of the support column, and the lower end of the support column is threadedly connected to the base plate.

4. The testing fixture for the external rotor motor drive control board according to claim 1, characterized in that: The bearing mounting chamber is a cylindrical structure with an opening facing downwards.

5. The testing fixture for the external rotor motor drive control board according to claim 1, characterized in that: The clamping assembly includes clamps and a pressure plate, the pressure plate being connected to the clamp's pressure rod and located above the top plate.

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