A motor rotor assembly size detection device

Abstract

The utility model discloses a motor rotor assembly size detection device, including device bottom plate, be equipped with the lifting translation mechanism on the device bottom plate, be equipped with the product support frame on the lifting translation mechanism, be equipped with the initiative positioning assembly on the device bottom plate of one side of the lifting translation mechanism, be equipped with the driven positioning assembly on the device bottom plate of the other side, still be equipped with the first support on the device bottom plate, the side of the first support to product support frame is equipped with the movable hanger, the below of hanger is equipped with a pair of detection mounting panel, and a pair of detection mounting panel is equipped with optical micrometer, still be equipped with the rotatory measuring mechanism of liftable one side of hanger, and rotatory measuring mechanism is connected with contact type displacement sensor. This detection device can be to the radial automation detection of various sizes of motor rotor, greatly promoted the detection efficiency and detection accuracy, can be well integrated in new energy automobile motor rotor assembly production line.

Description

Technical Field

[0001] This utility model relates to the field of dimensional inspection technology, specifically to a device for inspecting the assembly dimensions of a motor rotor. Background Technology

[0002] After assembly, the motor rotor needs to be inspected to ensure it meets product requirements. While manual inspection can check various dimensions, it is labor-intensive, has low accuracy and efficiency, and is not conducive to the layout of automated production lines. Existing technologies also use automated inspection instruments for dimensional measurement, such as coordinate measuring machines (CMMs). Although this method offers high precision, its measurement speed is low and cannot match the production line cycle time. Furthermore, CMMs are mostly standard equipment, making integration into the production line difficult and costly. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a device for detecting the assembly dimensions of a motor rotor.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A motor rotor assembly dimension inspection device includes a base plate, on which a lifting and translating mechanism is provided. A product support frame is provided on the lifting and translating mechanism. An active positioning component is provided on one side of the base plate of the lifting and translating mechanism, and a driven positioning component is provided on the other side of the base plate. The base plate also has a first bracket, on which a movable hanger is provided on the side facing the product support frame. A pair of detection mounting plates are provided below the hanger, and an optical micrometer is provided on the pair of detection mounting plates. A liftable rotary measuring mechanism is also provided on one side of the hanger, and a contact displacement sensor is connected to the rotary measuring mechanism.

[0005] This motor rotor assembly dimension inspection device, through the setup of the optical micrometer and the contact displacement sensor, can automatically inspect various dimensions of the motor rotor radially, greatly improving inspection efficiency and accuracy. Moreover, the entire inspection device has a reasonable spatial layout and can be well integrated into the new energy vehicle motor rotor assembly production line for online dimension inspection of the motor rotor.

[0006] Specifically, the lifting and translation mechanism includes a pair of second brackets mounted on the base plate of the device, a horizontal guide rod between the pair of second brackets, a translation plate connected to the horizontal guide rod via a linear slider, a liftable horizontal support plate on the translation plate, and the product support frame mounted on the horizontal support plate; at least one second bracket is also provided with a first driving member, which is connected to and drives the translation plate.

[0007] Furthermore, a second driving component is provided below the translation plate, which is connected to and drives the horizontal support plate. The translation plate is also provided with a plurality of vertical guide rods, which are connected to and support the horizontal support plate.

[0008] Furthermore, the product support frame is provided with a pair of vertical support plates, each with an arc-shaped support groove, and the side wall of the vertical support plate is also provided with a pair of support rollers to better support the product to be tested.

[0009] Specifically, the active positioning component includes a third bracket mounted on the base plate of the device, a third driving member on one side of the third bracket, and an active tip connected to the output end of the third driving member. The active tip can drive the product under test to rotate.

[0010] Specifically, the driven positioning component includes a fourth bracket disposed on the base plate of the device, a movable top bracket disposed on the fourth bracket, and a fourth driving member connected to and driving the top bracket, wherein the top bracket has a driven top on the side facing the active positioning component.

[0011] Specifically, the first bracket has several parallel transverse slide rails on its side, and transverse sliders are respectively provided on the transverse slide rails; the hanger includes a hanger vertical plate and a hanger base plate disposed below the hanger vertical plate, one side of the hanger vertical plate and one end of the hanger base plate are respectively connected to the transverse sliders; the rotating measuring mechanism is installed on the other side of the hanger vertical plate, and a pair of detection mounting plates are disposed below the hanger base plate; the first bracket also has a fifth driving component that connects to and drives the hanger on its side.

[0012] Specifically, the rotating measuring mechanism includes a vertical drive component mounted on the hanger, an output end of the vertical drive component having a mechanism connecting plate, a rotating drive component connected to the mechanism connecting plate, an output end of the rotating drive component having a turntable connected to the turntable, a measuring arm being provided below the turntable, and a contact displacement sensor being installed at the end of the measuring arm.

[0013] Furthermore, a connecting piece is provided on one side of the connecting plate of the mechanism, and a slotted photoelectric sensor is provided below the connecting piece. A sensing piece adapted to the slotted photoelectric sensor is provided on the outer periphery of the turntable so as to detect the rotation position and the number of rotations of the turntable.

[0014] Furthermore, the spacing between the pair of detection mounting plates is greater than the width of the lifting and translation mechanism and the product support frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This motor rotor assembly dimension detection device, through the setting of the optical micrometer and the contact displacement sensor, can automatically detect various radial dimensions of the motor rotor, greatly improving detection efficiency and accuracy; 2. The device base plate can support the various components of the detection device and can also be set on the production line for online dimension detection of the motor rotor; 3. The lifting and translation mechanism can drive the product support frame to perform lifting and translation movements, thereby adjusting the position of the product support frame so that the rotor to be inspected can be placed in the correct position. 4. This detection device can also reduce the difficulty of positioning and clamping the product to be inspected, improve the clamping accuracy, and facilitate subsequent accurate size detection, thereby improving the detection accuracy; moreover, it can be adapted to products of different sizes and types, thus expanding the applicability of the detection device; 5. The optical micrometer is a pair of opposing measuring heads, which are respectively mounted on a pair of detection mounting plates. When the pair of detection mounting plates are moved to the outer contour detection position of the product to be inspected under the drive of the hanger, the corresponding dimensions can be detected; the contact displacement sensor can measure the axial length of the product to be inspected. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a motor rotor assembly dimension detection device according to the present invention; Figure 2 This is a schematic diagram of the lifting and translation mechanism of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the lifting and translation mechanism of this utility model; Figure 4 This is a schematic diagram of the active positioning component and the driven positioning component of this utility model; Figure 5 This is a schematic diagram of the connection between the first bracket and the hanger of this utility model; Figure 6 This is a schematic diagram of the structure of the hanger of this utility model; Figure 7 This is a schematic diagram of the rotating measuring mechanism on the hanger of this utility model; Figure 8 This is a schematic diagram of the arrangement of the slot-shaped photoelectric sensor of this utility model; Figure 9 This is a schematic diagram of a motor rotor assembly dimension detection device according to the present invention for detecting a product under test; In the diagram: 1. Device base plate; 2. Lifting and translation mechanism; 201. Second bracket; 202. Horizontal guide rod; 203. Linear slider; 204. Translation plate; 205. Horizontal support plate; 206. First driving component; 207. Second driving component; 208. Vertical guide rod; 3. Product support frame; 301. Vertical support plate; 302. Arc-shaped support groove; 303. Support roller; 4. Active positioning component; 401. Third bracket; 402. Third driving component; 403. Active center; 5. Driven positioning component; 501. Fourth bracket; 502. Center bracket; 503. Fourth driving component; 504. Driven center; 6. First support; 7. Hanger; 701. Hanger vertical plate; 702. Hanger base plate; 8. Detection mounting plate; 9. Optical micrometer; 10. Rotary measuring mechanism; 1001. Vertical driving component; 1002. Mechanism connecting plate; 1003. Rotary driving component; 1004. Turntable; 1005. Measuring arm; 11. Contact displacement sensor; 12. Lateral slide rail; 13. Fifth driving component; 14. Lateral slider; 15. Connecting piece; 16. Slotted photoelectric sensor; 17. Sensing plate; 18. Product under test. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., 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, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] like Figures 1-9As shown, a motor rotor assembly dimension detection device includes a device base plate 1, on which a lifting and translation mechanism 2 is provided, and a product support frame 3 is provided on the lifting and translation mechanism 2. An active positioning component 4 is provided on one side of the device base plate of the lifting and translation mechanism 2, and a driven positioning component 5 is provided on the other side of the device base plate. The device base plate 1 is also provided with a first bracket 6, and a movable hanger 7 is provided on the side of the first bracket 6 facing the product support frame 3. A pair of detection mounting plates 8 are provided below the hanger 7, and an optical micrometer 9 is provided on the pair of detection mounting plates 8. A liftable rotating measuring mechanism 10 is also provided on one side of the hanger 7, and a contact displacement sensor 11 is connected to the rotating measuring mechanism 10.

[0020] This motor rotor assembly dimension inspection device, through the setup of the optical micrometer and the contact displacement sensor, can automatically inspect various dimensions of the motor rotor radially, greatly improving inspection efficiency and accuracy. Moreover, the entire inspection device has a reasonable spatial layout and can be well integrated into the motor rotor production line for online dimension inspection of the motor rotor.

[0021] The base plate 1 of the device can support the various components of the testing device and can also be set up as a whole on the production line.

[0022] The product support frame 3 supports the product to be inspected. The lifting and translation mechanism 2 can drive the product support frame 3 to move up, down, and translate, thereby adjusting the position of the product support frame 3 so that the product to be inspected can be accurately positioned and clamped. In conjunction with the active positioning component 4 and the driven positioning component 5, the product to be inspected can be automatically clamped onto the product support frame 3, while also allowing the product to rotate. This design reduces the difficulty of positioning and clamping the product to be inspected, improves clamping accuracy, facilitates subsequent accurate dimensional inspection, and enhances inspection accuracy. Furthermore, it can adapt to products of different sizes and types, expanding the applicability of the inspection device.

[0023] The hanger 7 is located on one side of the first support 6 and can move relative to the first support 6 along the length of the product so that the detection components (micrometer, displacement sensor, etc.) mounted on it can perform various types of dimensional detection. The optical micrometer 9 is a pair of through-beam measuring heads, which are respectively mounted on a pair of detection mounting plates 8. When the pair of detection mounting plates 8 are moved to the outer contour detection position of the product to be inspected by the hanger 7, the corresponding dimensions can be detected. For example, for cylindrical products such as motor rotors, after the pair of detection mounting plates move from the end of the product to the detection positions on both sides of the outer periphery, the optical micrometer can detect its diameter.

[0024] The contact displacement sensor 11 is configured to measure the axial length of the product under test (such as a motor rotor). By positioning it below the hanger, it can also move with the hanger, thereby detecting data at at least two points along the axial direction and obtaining the axial length between the two points. By positioning it below the rotating measuring mechanism, the height of the contact displacement sensor can be precisely adjusted as needed, and the direction or orientation of the contact sensor can be adjusted by rotation so that it can contact the product under test.

[0025] Specifically, in combination Figure 2 and Figure 3 As shown, the lifting and translation mechanism 2 includes a pair of second supports 201 mounted on the device base plate 1. A horizontal guide rod 202 is provided between the pair of second supports 201. A translation plate 204 is connected to the horizontal guide rod 202 via a linear slider 203. A liftable horizontal support plate 205 is provided on the translation plate 204. The product support frame 3 is mounted on the horizontal support plate 205. At least one of the second supports 201 is also provided with a first driving member 206, which is connected to and drives the translation plate 204.

[0026] A pair of second brackets 201 can connect multiple horizontal guide rods 202. The linear slider 203 allows the translation plate 204 to move along it. The first driving member 206 can push and pull the translation plate 204 to move it, thereby driving the support plate and product support frame set on it to move horizontally synchronously.

[0027] A second driving component 207 is provided below the translation plate 204. The second driving component 207 is connected to and drives the horizontal support plate 205. The translation plate 204 is also provided with multiple vertical guide rods 208, which are connected to and support the horizontal support plate 205. The second driving component 207 can drive the horizontal support plate 206 to rise and fall, thereby adjusting the height of the product support frame 3. The multiple vertical guide rods can provide support and guidance.

[0028] In use, the product to be inspected is placed on the product support frame. The first driving component drives the translation plate to move to adjust the horizontal position of the product to be inspected, and the second driving component drives the horizontal support plate to rise and fall to adjust the height of the product to be inspected. After adjusting to a suitable position, subsequent clamping operations can be performed. Both the first and second driving components can be drive cylinders or drive motors.

[0029] Furthermore, the product support frame 3 is provided with a pair of vertical support plates 301, the vertical support plates 301 are provided with arc-shaped support grooves 302, and the side wall of the vertical support plates 301 is also provided with a pair of support rollers 303.

[0030] The vertical support plate 301 can effectively support shaft-type parts, such as the rotor shaft of a motor, using its arc-shaped support groove 302. The pair of support rollers 303 can improve the stability of the rolling support.

[0031] Combination Figure 4 As shown, the active positioning component 4 includes a third bracket 401 disposed on the device base plate 1, a third driving member 402 disposed on one side of the third bracket 401, and an active tip 403 connected to the output end of the third driving member 402.

[0032] The driven positioning component 5 includes a fourth bracket 501 disposed on the device base plate 1, a movable top bracket 502 disposed on the fourth bracket 501, and a fourth driving member 503 connected to and driving the top bracket 502, and a driven top 504 disposed on the side of the top bracket 502 facing the active positioning component 4.

[0033] The active tip 403 and the driven tip 504 are arranged opposite each other on the same axis, capable of clamping the product to be inspected from both ends and providing a rotation function; the third driving component is a motor, which can drive the active tip to rotate, thereby causing the product to be inspected and the driven tip to rotate together.

[0034] The fourth support 501 is equipped with a slide rail and a slider to connect and support the top support 502. Under the drive of the fourth driving member 503, the top support 502 can move to adjust the distance between the driven top 504 and the active top 403, both to clamp the product to be inspected and to adapt to products of different lengths. The fourth driving member can also be a motor or a cylinder.

[0035] Specifically, in combination Figure 5 and Figure 6As shown, the first bracket 6 has several parallel transverse slide rails 12 on its side, and transverse sliders 14 are respectively provided on the transverse slide rails 12; the hanger 7 includes a hanger vertical plate 701 and a hanger base plate 702 disposed below the hanger vertical plate 701, one side of the hanger vertical plate 701 and one end of the hanger base plate 702 are respectively connected to the transverse sliders 14; the rotating measuring mechanism 10 is installed on the other side of the hanger vertical plate 701, and a pair of detection mounting plates 8 are disposed below the hanger base plate 702; the side of the first bracket 6 is also provided with a fifth driving component 13 that connects to and drives the hanger 7, such as a drive motor.

[0036] With the above-described structure, the fifth driving component 13 can drive the hanger 7 along the transverse slide rail 12, thereby moving the contact displacement sensor 11 and the optical micrometer 9 below to perform corresponding measurement work. To facilitate the installation of these components, the hanger 7 is configured with a hanger vertical plate 701 and a hanger base plate 702, which allows for convenient connection and installation of these components without occupying too much space, resulting in a relatively compact structure.

[0037] Specifically, in combination Figure 6 and 7 As shown, the rotating measuring mechanism 10 includes a vertical drive member 1001 mounted on the hanger 7. The output end of the vertical drive member 1001 is provided with a mechanism connecting plate 1002. A rotating drive member 1003 is connected to the mechanism connecting plate 1002. The output end of the rotating drive member 1003 is connected to a turntable 1004. A measuring arm 1005 is provided below the turntable 1004. The contact displacement sensor 11 is installed at the end of the measuring arm 1005.

[0038] The vertical drive component 1001 can drive the mechanism connecting plate 1002 to move vertically, so as to independently adjust the height position of the contact displacement sensor 11; the rotary drive component 1003 can drive the turntable 1004 to rotate, thereby driving the measuring arm 1005 to rotate in the correct direction, and thus adjusting the orientation of the contact displacement sensor 11 so that it contacts the product to be inspected at a preset position. The vertical drive component can be an electric push rod, and the rotary drive component can be a rotary motor.

[0039] Furthermore, in combination Figure 8 As shown, a connecting piece 15 is provided on one side of the mechanism connecting plate 1002, and a slotted photoelectric sensor 16 is provided below the connecting piece 15. A sensing piece 17 adapted to the slotted photoelectric sensor 16 is provided on the outer periphery of the turntable 1004.

[0040] By setting the sensing plate 17 and the slotted photoelectric sensor 16 on the edge of the turntable 1004, the rotational movement of the turntable 1004 can be detected whenever the sensing plate 17 passes the slotted photoelectric sensor 16. This allows for monitoring of the rotational position of the turntable 1004, which is beneficial for the position control and reset of the contact displacement sensor 11.

[0041] Furthermore, the distance between the pair of detection mounting plates 8 is greater than the width of the lifting and translation mechanism 2 and the product support frame 3, respectively, so that the pair of detection mounting plates 8 can move along both sides of the product to be inspected.

[0042] This motor rotor assembly dimension inspection device is applied to a new energy motor rotor assembly production line. It measures the dimensions of the product after assembly, and one inspection process is as follows: (1) The assembled product (motor rotor) is transferred by the robot to the product support frame on the lifting and translation mechanism; (2) The lifting and translating mechanism lifts and translates the product, and the driven center and the active center press against the product from both ends respectively; (3) The hanger drives a pair of detection mounting plates to move the optical micrometer to the measurement position, the active tip rotates, and the optical micrometer measures the outer diameter of the product; (4) After the outer diameter of the product is measured, the hanger moves to move the contact displacement sensor to the product axial length measurement position to obtain data at one end, and then moves to the other end and rotates the measuring head of the contact displacement sensor to measure the data at the other end. The product axial length value is calculated by the hanger. (5) After the measurement is completed, the driven center retracts, the lifting and translation mechanism rises, and then the lifting mechanism is translated and reset, and the robot transports the product to the next workstation.

[0043] This testing device combines multiple measurement methods to efficiently and accurately measure various dimensions of products, reducing costs and simplifying production line integration.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the assembly dimensions of a motor rotor, characterized in that, The device includes a base plate, on which a lifting and translating mechanism is provided. A product support frame is provided on the lifting and translating mechanism. An active positioning component is provided on one side of the base plate of the lifting and translating mechanism, and a driven positioning component is provided on the other side of the base plate. The base plate also has a first bracket, on which a movable hanger is provided on the side facing the product support frame. A pair of detection mounting plates are provided below the hanger, and an optical micrometer is provided on the pair of detection mounting plates. A liftable rotary measuring mechanism is also provided on one side of the hanger, and a contact displacement sensor is connected to the rotary measuring mechanism.

2. The motor rotor assembly dimension detection device of claim 1, wherein, The lifting and translation mechanism includes a pair of second brackets mounted on the base plate of the device, a horizontal guide rod between the pair of second brackets, a translation plate connected to the horizontal guide rod via a linear slider, a liftable horizontal support plate on the translation plate, and the product support frame mounted on the horizontal support plate; at least one second bracket is also provided with a first driving member, which is connected to and drives the translation plate.

3. The motor rotor assembly dimension detection apparatus of claim 2, wherein A second driving component is provided below the translation plate. The second driving component is connected to and drives the horizontal support plate. The translation plate is also provided with a plurality of vertical guide rods, which are connected to and support the horizontal support plate.

4. The motor rotor assembly dimension detection apparatus of claim 1, wherein The product support frame is provided with a pair of vertical support plates, each with an arc-shaped support groove, and the side wall of the vertical support plate is also provided with a pair of support rollers.

5. The motor rotor assembly dimension detection apparatus of claim 1, wherein The active positioning component includes a third bracket mounted on the base plate of the device, a third driving member on one side of the third bracket, and an active center connected to the output end of the third driving member.

6. The motor rotor assembly dimension detection apparatus of claim 1, wherein The driven positioning component includes a fourth bracket disposed on the base plate of the device, a movable top bracket disposed on the fourth bracket, and a fourth driving member connected to and driving the top bracket, wherein the top bracket has a driven top on the side facing the active positioning component.

7. The motor rotor assembly dimension detection apparatus of claim 1, wherein The first bracket has several parallel transverse slide rails on its side, and transverse sliders are respectively provided on the transverse slide rails; the hanger includes a hanger vertical plate and a hanger base plate disposed below the hanger vertical plate, one side of the hanger vertical plate and one end of the hanger base plate are respectively connected to the transverse sliders; the rotating measuring mechanism is installed on the other side of the hanger vertical plate, and a pair of detection mounting plates are disposed below the hanger base plate; the first bracket also has a fifth driving component that connects to and drives the hanger on its side.

8. The motor rotor assembly dimension detection apparatus of claim 1, wherein, The rotating measuring mechanism includes a vertical drive component mounted on the hanger. The output end of the vertical drive component is provided with a mechanism connecting plate. The mechanism connecting plate is connected to the rotating drive component. The output end of the rotating drive component is connected to a turntable. A measuring arm is provided below the turntable. The end of the measuring arm is equipped with the contact displacement sensor.

9. The motor rotor assembly dimension detection device according to claim 8, characterized in that, A connecting piece is provided on one side of the connecting plate of the mechanism, and a slotted photoelectric sensor is provided below the connecting piece. A sensing piece adapted to the slotted photoelectric sensor is provided on the outer periphery of the turntable.

10. The motor rotor assembly dimension detection device according to claim 1, characterized in that, The spacing between the pair of detection mounting plates is greater than the width of the lifting and translation mechanism and the product support frame.

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