Automobile motor cantilever torque detection device

Abstract

The present application relates to motor detection technical field, specifically to a kind of automobile motor cantilever torque detection device, including workbench, moving table, motor base, servo motor, connecting seat, torque sensor, power supply assembly and connecting assembly, when using, through moving seat to drive the motor to be measured to move to the top of torque sensor, connecting assembly is connected with connecting seat at this time, control servo motor operation, to drive torque sensor, connecting seat and the output end of motor to be measured rotate, to detect the no-load friction torque of motor to be measured;After no-load torque detection is completed, keep mechanical connection state, subsequently by power supply assembly to the motor to be measured apply load, make it start output torque according to instruction, at this time motor to be measured enters initiative driving state, its output torque is transmitted to torque sensor by connecting assembly, torque sensor synchronously measures torque value, the whole detection procedure integration is high, smooth, significantly improve the test efficiency and operation consistency.

Description

Technical Field

[0001] This invention relates to the field of motor testing technology, and in particular to a device for detecting the cantilever torque of an automotive motor. Background Technology

[0002] In the research, development, production, and quality control of automotive motors, accurate and efficient testing of key performance parameters such as output torque and stall torque is crucial. Cantilever torque testing is an important method for simulating the output characteristics of a motor under actual installation conditions, and the accuracy of the test results and the convenience of the testing process directly affect product quality control and production efficiency.

[0003] Existing testing solutions typically require operators to manually install, position, connect, and test the motor under test. The automation and integration of the testing process are generally low, resulting in low testing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an automotive motor cantilever torque detection device, which solves the problems of cumbersome testing procedures and low efficiency caused by the reliance on manual operation in existing testing devices.

[0005] To achieve the above objectives, the present invention provides an automotive motor cantilever torque detection device, comprising a worktable, a movable stage, a motor mount, a servo motor, a connecting seat, a torque sensor, a power supply assembly, and a connecting assembly. The movable stage is slidably connected to the worktable and located on one side of the worktable. The motor mount is fixedly connected to the movable stage and located on the side of the movable stage away from the worktable. The servo motor is connected to the worktable and mounted on the worktable. The torque sensor is mounted on the servo motor and connected to its output end. The connecting seat is mounted on the torque sensor and connected to its input end. The power supply assembly is mounted above the movable stage. The connecting assembly is mounted on the output end of the motor under test, for connecting the output end of the motor under test to the connecting seat.

[0006] The connecting assembly includes a mounting plate and an eccentric block. The mounting plate is disposed on the output end of the motor under test. The eccentric block is rotatably connected to the mounting plate.

[0007] The connecting seat has a connecting groove, which is a through groove that radially penetrates the connecting seat and mates with the eccentric block; the connecting groove has a guide slope, which is disposed at the openings on both sides of the connecting groove.

[0008] The motor mount has a placement slot, which is located on one side of the motor mount and is engaged with the motor to be tested.

[0009] The power supply assembly further includes a cylinder, a lifting seat, and a plug. The cylinder is positioned above the moving platform. The lifting seat is positioned on the cylinder and connected to the output end of the cylinder. The plug is fixedly connected to the lifting seat and is positioned on the lifting seat.

[0010] The motor base also has a positioning groove, which is located on one side of the placement groove.

[0011] The automotive motor cantilever torque detection device further includes a slotted photoelectric sensor and a baffle plate. The slotted photoelectric sensor is connected to the servo motor, and the baffle plate is connected to the torque sensor.

[0012] This invention discloses an automotive motor cantilever torque detection device. By modularly integrating the positioning, rapid automatic docking, integrated power supply, and torque measurement functions of the motor under test into a single working platform, it achieves a high degree of integration and automation of the testing process. The invention utilizes the moving stage for coarse positioning of the motor under test, and with the cooperation of the connecting groove with a guide bevel and the eccentric block, automatically connects the output end of the motor under test to the connecting seat. The cylinder drives the plug to rise and fall, achieving automatic power supply connection and disconnection. The overall design forms a continuous and smooth work cycle for the motor clamping, alignment, power-on, testing, and disassembly processes, significantly reducing manual intervention and auxiliary time, and significantly improving testing efficiency, operational safety, and result consistency. It is particularly suitable for rapid testing scenarios involving multiple types and batches of motors. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the automotive motor cantilever torque detection device according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the connecting groove according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the connection component according to the first embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the placement slot according to the first embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the installation structure of the clamping seat according to the second embodiment of the present invention.

[0019] Figure 6 This is the present invention. Figure 2 Enlarged view of point A.

[0020] In the diagram: 101-Workbench, 102-Moving stage, 103-Motor base, 104-Servo motor, 105-Connecting seat, 106-Torque sensor, 107-Power supply assembly, 108-Connecting assembly, 109-Mounting plate, 110-Eccentric block, 111-Connecting groove, 112-Guide inclined surface, 113-Placement groove, 114-Cylinder, 115-Lifting seat, 116-Plug, 117-Positioning groove, 118-Motor under test, 201-Slot-type photoelectric sensor, 202-Baffle, 203-Rotary clamping cylinder, 204-Pressure seat. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] First embodiment:

[0023] Please see Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the overall structure of the automotive motor cantilever torque detection device. Figure 2 This is a structural diagram of the connecting groove. Figure 3 This is a structural diagram of the connecting components. Figure 4 This is a schematic diagram of the placement slot.

[0024] This invention provides an automotive motor cantilever torque detection device, comprising a worktable 101, a moving stage 102, a motor mount 103, a servo motor 104, a connecting seat 105, a torque sensor 106, a power supply assembly 107, and a connecting assembly 108. The connecting assembly 108 includes a mounting plate 109 and an eccentric block 110. The connecting seat 105 has a connecting groove 111, which has a guide slope 112. The motor mount 103 has a placement groove 113. The power supply assembly 107 further includes a cylinder 114, a lifting seat 115, and a plug 1. 16. The motor base 103 also has a positioning groove 117. The output end of the motor under test 118 is connected to the connecting base 105 by the movement of the moving stage 102. The torque sensor 106 is driven to rotate by the servo motor 104, thereby detecting the no-load torque of the motor under test 118. Power is supplied to the motor under test 118 by the power supply component, thereby causing the output end of the motor under test 118 to rotate, thereby detecting the load torque of the motor under test 118. It can be understood that the above solution can be used in the torque detection of automotive motors.

[0025] In this specific embodiment, the movable stage 102 is slidably connected to the worktable 101 and located on one side of the worktable 101. The motor base 103 is fixedly connected to the movable stage 102 and located on the side of the movable stage 102 away from the worktable 101. The servo motor 104 is connected to the worktable 101 and mounted on the worktable 101. The torque sensor 106 is mounted on the servo motor 104 and connected to the output end of the servo motor 104. The connecting base 105 is provided... The torque sensor 106 is connected to the input terminal of the torque sensor 106. The power supply component 107 is disposed above the moving stage 102. The connection component 108 is disposed on the output terminal of the motor under test 118 and is used to connect the output terminal of the motor under test 118 to the connection seat 105. The worktable 101 is provided with a slide rail, the bottom of the moving stage 102 is provided with a slider, and the worktable 101 is also provided with a lead screw drive structure (not shown in the figure) for driving the moving stage 102 to move left and right.

[0026] In use, the motor under test 118 is placed on the motor base 103, and then the lead screw drive structure is activated to drive the moving platform 102 and the motor under test 118 to move towards the servo motor 104. When the motor under test 118 moves directly above the torque sensor 106, the connecting component 108 is connected to the connecting seat 105. At this time, the servo motor 104 is first controlled to run, thereby driving the output end of the torque sensor 106, the connecting seat 105, and the motor under test 118 to rotate. At this time, the motor under test 118 is in a driven state without power. In order to obtain more accurate basic data and to eliminate abnormal torque fluctuations that may be caused by burrs or slight interference in the internal gear pair of the newly assembled motor during the initial break-in period, torque data is not collected during the first two rotations of the servo motor 104 after it is started. After the two rotations of the break-in operation are completed, the system begins to collect the output value of the torque sensor 106. The data measured at this stage is used as the output value of the motor under test. The no-load friction torque of motor 118 is measured. After the no-load torque is detected, the mechanical connection is maintained, and then a load is applied to the motor 118 under test through the power supply component 107. The motor 118 under test enters an active drive state, and its output torque is transmitted to the torque sensor 106 through the connection component 108. The torque sensor 106 synchronously measures the torque value. After the no-load torque and loaded torque of the motor 118 under test are detected, the control system controls the power supply component 107 to stop supplying power to the motor 118 under test and controls the servo motor 104 to stop running. The lead screw drive structure drives the moving stage 102 in the reverse direction, driving the motor 118 under test, which has finished testing, to return steadily to the initial clamping position. During the retraction of the moving stage 102, the connection component 108 automatically separates from the connecting seat 105. Finally, the operator can remove the tested motor from the motor seat 103, and the device returns to the standby state, ready to test the next motor. The entire testing process has a high degree of integration and smooth connection, significantly improving testing efficiency and operational consistency.

[0027] The mounting plate 109 is disposed on the output end of the motor 118 under test; the eccentric block 110 is rotatably connected to the mounting plate 109.

[0028] Secondly, the connecting groove 111 is a through groove that radially penetrates the body of the connecting seat 105, and the connecting groove 111 cooperates with the eccentric block 110; the connecting groove 111 has a guide slope 112, and the guide slope 112 is disposed at the openings on both sides of the connecting groove 111.

[0029] When the moving stage 102 drives the motor under test 118 to move towards the servo motor 104, the eccentric block 110 first contacts the guide slope 112 at the openings on both sides of the connecting groove 111. Under the guidance of the guide slope 112, the eccentric block 110 is guided into the connecting groove 111, thereby completing the connection between the output end of the motor under test 118 and the connecting seat 105. Since there is an eccentricity between the eccentric block 110 and the output shaft of the motor under test 118, a periodic radial force will be generated when the motor under test 118 rotates. This force acts on the side wall of the connecting groove 111, thereby transmitting the rotational torque to the torque sensor 106, realizing power transmission and measurement.

[0030] Meanwhile, the placement slot 113 is located on one side of the motor base 103, and the placement slot 113 cooperates with the motor under test 118; the placement slot 113 cooperates with the outer shell of the motor under test 118, and the operator can place the motor under test 118 in the placement slot 113 for positioning.

[0031] In addition, the cylinder 114 is disposed above the moving platform 102; the lifting seat 115 is disposed on the cylinder 114 and connected to the output end of the cylinder 114; the plug 116 is fixedly connected to the lifting seat 115 and disposed on the lifting seat 115; multiple plugs 116 are provided, and the positions and numbers of the plugs 116 correspond to the multiple interfaces provided on one side of the housing of the motor under test 118, and include power terminals and signal terminals, which are used to provide working power to the motor under test 118 and transmit control and feedback signals, respectively; when the motor under test 118 is positioned in the placement slot 113 and completes mechanical docking with the connecting seat 105, the cylinder 114 drives the lifting seat 115 to descend, driving the plug 116 to be inserted into the corresponding interface of the motor under test 118, thereby realizing electrical connection.

[0032] Finally, the positioning groove 117 is set on one side of the placement groove 113; the shape and position of the positioning groove 117 are consistent with the interface shell on the motor under test 118. When the operator puts the motor under test 118 into the placement groove 113, the interface shell must fall into the positioning groove 117 at the same time to avoid the power supply component 107 failing to supply power due to the incorrect placement direction of the motor under test 118.

[0033] When using the automotive motor cantilever torque detection device of this embodiment, the operator places the motor under test 118 into the placement slot 113 and confirms its correct orientation through the positioning slot 117; then the lead screw drive structure drives the moving stage 102 to move the motor under test 118; during this process, the eccentric block 110 extends into the connecting slot 111, so that the output end of the motor under test 118 is connected to the connecting seat 105; then the cylinder 114 is activated, driving the plug 116 to descend and insert into the motor interface to establish an electrical connection; during the detection process, the servo motor 104 is first controlled to run, driving the motor under test to idle for two revolutions to complete the break-in, and then its no-load friction torque is collected and recorded; after the no-load test is completed, the power supply component 107 applies a preset load to the motor under test 118 to make it run actively, and the torque sensor 106 synchronously measures and records its load-bearing output torque. After the test is completed, the device automatically performs a reset operation. The entire process does not require manual intervention for tedious operations such as centering and plugging / unplugging wire harnesses. It truly realizes full automation and integration from clamping, testing to disassembly, significantly improving testing efficiency, consistency and safety.

[0034] Second embodiment:

[0035] Based on the first embodiment, please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the mounting structure of the clamping seat in the second embodiment. Figure 6 This is a schematic diagram of the installation structure of the slotted photoelectric sensor in the second embodiment. The automotive motor cantilever torque detection device in this embodiment also includes a slotted photoelectric sensor 201, a baffle 202, a rotary clamping cylinder 203, and a clamping seat 204.

[0036] In this specific embodiment, the slotted photoelectric sensor 201 is connected to the servo motor 104; the baffle 202 is connected to the torque sensor 106; the baffle 202 can rotate together with the torque sensor 106 and the connecting seat 105. When the servo motor 104 drives the torque sensor 106 to rotate, the baffle 202 fixed on it will block the light path of the slotted photoelectric sensor 201 once every one revolution, generating a pulse signal. This signal is sent to the control system for accurately counting the number of revolutions of the torque sensor 106.

[0037] The rotary clamping cylinder 203 is connected to the moving stage 102 and located on one side of the moving stage 102. The clamping seat 204 is disposed on the rotary clamping cylinder 203 and connected to the output end of the rotary clamping cylinder 203. When the motor under test 118 is placed in position, the output end of the rotary clamping cylinder 203 first rotates 90 degrees and then drives the clamping seat 204 to descend, thereby pressing the motor under test 118 into the placement slot 113 to ensure that it remains stable and does not shift or shake during subsequent movement, docking and testing. After the motor under test 118 is tested, the output end of the rotary clamping cylinder 203 first drives the clamping seat 204 to rise and then rotates 90 degrees to avoid interference between the clamping seat 204 and the workpiece being loaded and unloaded.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A device for detecting the cantilever torque of an automotive motor, characterized in that, The device includes a worktable, a movable stage, a motor mount, a servo motor, a connecting base, a torque sensor, a power supply assembly, and a connecting assembly. The movable stage is slidably connected to the worktable and located on one side of the worktable. The motor mount is fixedly connected to the movable stage and located on the side of the movable stage away from the worktable. The servo motor is connected to the worktable and mounted on it. The torque sensor is mounted on the servo motor and connected to its output end. The connecting base is mounted on the torque sensor and connected to its input end. The power supply assembly is located above the movable stage. The connecting assembly is mounted on the output end of the motor under test, enabling the output end of the motor under test to connect to the connecting base.

2. The automotive motor cantilever torque detection device as described in claim 1, characterized in that, The connection assembly includes a mounting plate and an eccentric block. The mounting plate is disposed on the output end of the motor under test. The eccentric block is rotatably connected to the mounting plate.

3. The automotive motor cantilever torque detection device as described in claim 2, characterized in that, The connecting seat has a connecting groove, which is a through groove that radially penetrates the connecting seat and mates with the eccentric block; the connecting groove has a guide slope, which is disposed at the openings on both sides of the connecting groove.

4. The automotive motor cantilever torque detection device as described in claim 1, characterized in that, The motor mount has a placement slot, which is located on one side of the motor mount and is matched with the motor to be tested.

5. The automotive motor cantilever torque detection device as described in claim 4, characterized in that, The power supply assembly also includes a cylinder, a lifting seat, and a plug. The cylinder is positioned above the moving platform. The lifting seat is positioned on the cylinder and connected to the output end of the cylinder. The plug is fixedly connected to the lifting seat and is positioned on the lifting seat.

6. The automotive motor cantilever torque detection device as described in claim 5, characterized in that, The motor mount also has a positioning groove, which is located on one side of the placement groove.

7. The automotive motor cantilever torque detection device as described in claim 1, characterized in that, The automotive motor cantilever torque detection device also includes a slotted photoelectric sensor and a baffle plate. The slotted photoelectric sensor is connected to the servo motor, and the baffle plate is connected to the torque sensor.

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