Motor correction device

Abstract

The utility model relates to motor manufacturing technical field, especially a kind of motor correction device, including rack, the rack is provided with tray, the tray is used to install motor to be measured;It is suitable to the motor end cover of the motor to be measured and applies along the axial pressure of the motor to be measured pressure tool, the pressure tool is installed in the rack side away from the tray, when the pressure tool applies axial pressure to the motor end cover, the tray provides the support force opposite to the axial pressure for the motor to be measured;Detection component for detecting axial movement of motor to be measured, the detection component is installed on the rack or the pressure tool.The utility model integrates detection component and the pressure tool suitable for applying axial pressure to motor to be measured on motor correction device, can avoid manual movement motor, reduces artificial cost;Simplify detection and correction process, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a motor calibration device. Background Technology

[0002] During the manufacturing process of electric motors, assembly errors, component dimensional errors, and other issues may cause the axial movement of the motor to exceed the preset range specified in the design, thus affecting the stability of motor operation and posing certain safety hazards. Currently, the detection and correction of axial movement in motors are usually performed separately. If the axial movement test on the testing device fails, the motor needs to be removed for manual correction, and then moved back into the testing device for a second test. This process is complex, labor-intensive, and inefficient. Utility Model Content

[0003] This invention solves the problems in related technologies and proposes a motor calibration device. By integrating the detection components and the pressure fixture suitable for applying axial pressure to the motor under test into the motor calibration device, it can avoid manual movement of the motor, reduce labor costs, simplify the detection and calibration process, and improve production efficiency.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a motor calibration device, comprising: a frame, on which a tray is provided for mounting a motor to be tested; a pressure fixture adapted to apply axial pressure along the motor end cover of the motor to be tested, the pressure fixture being mounted on the side of the frame away from the tray, wherein when the pressure fixture applies axial pressure to the motor end cover, the tray provides a supporting force to the motor to be tested in the opposite direction to the axial pressure; and a detection component for detecting axial movement of the motor to be tested, the detection component being mounted on the frame or the pressure fixture.

[0005] According to one embodiment of the present invention, the detection component includes a clamp and a displacement sensor. The clamp includes a lifting component and a gripper adapted to be driven by the lifting component to approach or move away from the rotating shaft of the motor under test. The gripper is used to clamp the rotating shaft, and the displacement sensor is used to measure the displacement of the rotating shaft when the clamp clamps the rotating shaft away from the motor under test.

[0006] According to one embodiment of the present invention, the pressure fixture includes a lifting assembly and a pressure ring installed on the movable end of the lifting assembly. The lifting assembly is used to drive the pressure ring closer to or away from the motor under test. When the pressure ring abuts against the motor end cover, the lifting assembly applies the axial pressure to the motor end cover through the pressure ring.

[0007] According to one embodiment of the present invention, the pressure ring has a through hole suitable for the rotating shaft to pass through, and the gripper is located between the movable end and the pressure ring.

[0008] According to one embodiment of the present invention, the pressure ring is mounted on the movable end via a movable plate, and a displacement sensor for detecting the displacement of the rotating shaft is provided between the movable plate and the pressure ring.

[0009] According to one embodiment of the present invention, the movable plate and the pressure ring are connected by a mounting column, the displacement sensor is mounted on the mounting column, and the lifting assembly is mounted on the movable plate.

[0010] According to one embodiment of the present invention, the lifting assembly includes a drive motor and a lead screw that is driven by the drive motor. The drive motor is used to drive the lead screw to lift and lower, and the lead screw is connected to the pressure ring.

[0011] According to one embodiment of the present invention, the clamp is provided with pressure rods on both sides. The pressure rods are used to abut against the motor under test when the clamp holds the rotating shaft, so as to prevent the motor body from being displaced.

[0012] According to one embodiment of the present invention, it further includes: a lifting assembly installed between the frame and the tray, the lifting assembly being used to drive the tray to move the motor under test closer to or away from the detection assembly.

[0013] According to one embodiment of the present invention, it further includes: a conveying assembly, the conveying assembly including a conveyor belt located between the pallet and the lifting assembly, the conveyor belt having a plurality of mounting positions suitable for mounting the pallet, and the mounting positions having movable holes suitable for the lifting assembly to drive the pallet to move.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) By integrating the detection components and the pressure tool suitable for applying axial pressure to the motor under test into the motor calibration device, this utility model can avoid manual movement of the motor, reduce labor costs, simplify the detection and calibration process, and improve production efficiency.

[0016] (2) The displacement sensor and the lifting assembly are directly or indirectly installed on the lifting assembly of the press. When the motor is tested and calibrated, the height of the lifting assembly and the displacement sensor can be adjusted as a whole, reducing the stroke requirement of the lifting assembly and reducing the equipment cost.

[0017] (3) A lifting component is set between the frame and the tray to drive the motor under test to move closer to or further away from the detection component. The distance between the motor and the detection component can be adjusted from the motor side before the test to adapt to the detection and calibration of different motor models. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the motor correction device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the detection component and pressure fixture according to one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a press according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the lifting assembly according to one embodiment of the present invention.

[0022] In the picture:

[0023] 1. Frame, 2. Tray, 3. Detection Component, 31. Fixture, 311. Lifting Component, 311a. Mounting Base, 311b. Lifting Cylinder, 312. Gripper, 32. Displacement Sensor, 33. Pressure Rod, 4. Pressure Tool, 41. Lifting Component, 411. Drive Motor, 412. Lead Screw, 413. Mounting Plate, 42. Pressure Ring, 43. Moving Plate, 44. Mounting Column, 5. Lifting Component, 51. Lifting Cylinder, 52. Movable Ejector Pin, 53. Lifting Cylinder Mounting Base, A. Motor Under Test, B. Motor End Cover, C. Rotating Shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0028] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0030] like Figure 1 and Figure 2 As shown, a motor calibration device includes a frame 1, a tray 2, a detection component 3, and a pressure fixture 4. The tray 2 is mounted on the frame 1 and is used to mount a motor A under test. The detection component 3 is mounted on the frame 1 or the pressure fixture 4 and is used to detect axial movement of the motor A under test. The pressure fixture 4 is mounted on the side of the frame 1 away from the tray 2 and is adapted to apply axial pressure to the motor end cover B of the motor A under test. When the pressure fixture 4 applies axial pressure to the motor end cover B, the tray 2 provides a supporting force to the motor A under test in the opposite direction to the axial pressure.

[0031] It is understood that, during operation, the motor calibration device of this embodiment first detects the axial movement of the motor under test A through the detection component 3. If the axial movement of the motor under test A exceeds the preset axial movement threshold of the motor, the pressure fixture 4 applies axial pressure to the motor end cover B of the motor under test A. At this time, the tray 2 provides a supporting force to the motor under test A in the opposite direction to the axial pressure, causing plastic deformation inside the motor under test A or the motor end cover B, thereby correcting the relative position of the rotor of the motor under test A with other internal structures, achieving single-stage calibration. After calibration, the detection component 3 performs a second detection on the motor under test A. If the axial movement of the motor under test A still exceeds the preset axial movement threshold, the above calibration process can be repeated until the axial movement of the motor under test A meets the preset axial movement threshold. The preset axial movement threshold can be the factory setting of the motor or can be set by technicians according to actual requirements; this embodiment does not impose any restrictions.

[0032] By integrating the detection component 3 and the pressure fixture 4, which is suitable for applying axial pressure to the motor A under test, into the motor calibration device, manual movement of the motor can be avoided, reducing labor costs; the detection and calibration process is simplified, and production efficiency is improved.

[0033] In one embodiment of this utility model, the detection component 3 may include a clamp 31 and a displacement sensor 32. The clamp 31 may include a lifting component 311 and a gripper 312 adapted to be driven by the lifting component 311 to approach or move away from the rotating shaft C of the motor A under test. The gripper 312 is used to clamp the rotating shaft C of the motor A under test. The displacement sensor 32 is used to measure the displacement of the rotating shaft C when the clamp 31 clamps the rotating shaft C away from the motor A under test. The lifting component 311 may include a mounting base 311a mounted on the clamp 31 and a lifting cylinder 311b mounted on the mounting base 311a. The cylinder drives the gripper 312 to lift or rise. The displacement sensor 32 may be a non-contact sensor, such as a laser sensor, or a contact sensor, such as a linear displacement sensor. This embodiment is not limited to this.

[0034] When the motor calibration device detects the axial movement of the motor A under test, the gripper 312, driven by the lifting assembly 311, first approaches and clamps the shaft C of the motor A under test. At this time, the displacement sensor 32 can measure the first displacement of the shaft C. Then, the gripper 312 clamps the shaft C and, driven by the lifting assembly 311, moves the shaft C away from the motor. The displacement sensor 32 can measure the second displacement of the shaft C. The axial movement of the motor A under test can be obtained by calculating the difference between the second displacement and the first displacement.

[0035] In one embodiment of this invention, the pressure fixture 4 may include a lifting assembly 41 and a pressure ring 42 mounted on the movable end of the lifting assembly 41. The lifting assembly 41 drives the pressure ring 42 to move closer to or further away from the motor A under test. When the pressure ring 42 abuts against the motor end cover B, the lifting assembly 41 applies axial pressure to the motor end cover B through the pressure ring 42 to achieve motor calibration. By changing the displacement of the pressure ring 42, the lifting assembly 41 can adjust the deformation of the inside of the motor A under test or the motor end cover B, which is beneficial for accurate calibration.

[0036] Specifically, the lifting assembly 41 may include a drive motor 411, a lead screw 412 connected to the drive motor 411, and an optional mounting plate 413. The mounting plate 413 may be fixed to the frame 1. The drive motor 411 may be mounted on the mounting plate 413 or directly on the frame 1. The drive motor 411 is used to drive the lead screw 412 to lift. The lead screw 412 may be directly or indirectly connected to the pressure ring 42 so that the lead screw 412 drives the pressure ring 42 to move closer to or away from the motor A under test. In some other embodiments of this utility model, the lead screw 412 motor may also be directly mounted on the frame 1 or the optional mounting plate 413 to drive the pressure ring 42 to move closer to or away from the motor A under test, etc. This embodiment does not limit this.

[0037] In one embodiment of this invention, the pressure ring 42 may have a through hole suitable for the passage of the rotating shaft C, and the gripper 312 is located between the movable end of the lifting assembly 41 and the pressure ring 42. When one end of the rotating shaft C passes through the pressure ring 42, the gripper 312 can clamp the rotating shaft C to detect axial movement. In other embodiments of this invention, the pressure ring 42 may be composed of multiple independent pressure blocks symmetrically distributed along the rotating shaft C, and the gripper 312 may also be located between the pressure ring 42 and the motor end cover B of the motor A under test; this embodiment is not limited to these limitations.

[0038] In one embodiment of this utility model, the pressure ring 42 can be mounted on the movable end of the lifting assembly 41 via a movable plate 43. A displacement sensor 32 for detecting the displacement of the rotating shaft C can be provided between the movable plate 43 and the pressure ring 42. Specifically, the movable plate 43 and the pressure ring 42 can be connected via a mounting post 44, which can also be used to mount the displacement sensor 32.

[0039] In one embodiment of this utility model, the lifting component 311 can also be mounted on the movable plate 43, thereby enabling synchronous lifting and lowering with the displacement sensor 32, reducing the stroke requirement of the lifting component 311 and lowering equipment costs. The displacement sensor 32 can be mounted on the movable plate 43 or on the mounting base 311a of the lifting component 311; this embodiment does not impose any limitations on this.

[0040] In one embodiment of this utility model, clamp 31 is provided with pressure rods 33 on both sides. The pressure rods 33 are used to abut against the motor A under test when the clamp 31 clamps the rotating shaft C, preventing displacement of the motor body. Specifically, the pressure rods 33 can be mounted on the frame 1 or on the moving plate 43 and rise and fall synchronously with the pressure ring 42. Figure 3 As shown, a spring may be provided between the mounting end of the pressure rod 33 and the position where the pressure rod 33 abuts against the motor to play a buffering role, etc., but this embodiment does not impose any restrictions.

[0041] In one embodiment of the present invention, the motor calibration device may further include: a lifting component 5 installed between the frame 1 and the tray 2. The lifting component 5 is used to drive the tray 2 to move the motor A under test closer to or away from the detection component 3, so that the distance between the motor and the detection component 3 can be adjusted before testing to adapt to the testing and calibration of different models of motors.

[0042] Specifically, the lifting assembly 5 may include a lifting cylinder 51, a movable ejector pin 52 disposed on the lifting shaft of the lifting cylinder 51, and an optional lifting cylinder mounting base 53. The tray 2 may be provided with a sleeve suitable for the movable ejector pin 52 to be inserted into the ejector pin sleeve. After the movable ejector pin 52 on the lifting shaft is inserted into the tray 2, it can drive the tray 2 and the motor on the tray 2 to move closer to or away from the detection assembly 3 under the drive of the lifting cylinder 51. The tray 2 may be provided with a motor base 21 for mounting the motor, and the ejector pin sleeve may also be disposed on the motor base 21. The lifting cylinder mounting base 53 is used to mount the lifting cylinder 51 on the frame 1. The lifting cylinder mounting base 53 may be disposed on the side of the lifting cylinder 51 near the tray 2, or it may be mounted on the side of the lifting cylinder 51, etc., which are not limited in this embodiment.

[0043] In embodiments of this invention not shown, the motor calibration device may further include a conveying component. This conveying component may include a conveyor belt located between the tray 2 and the lifting component 5, used to drive different trays 2, each equipped with a motor A to be tested, to sequentially engage with the lifting component 5, facilitating assembly-line testing and calibration. Specifically, the conveyor belt may have multiple mounting positions suitable for mounting the trays 2, and each mounting position may have an opening suitable for the lifting component 5 to drive the trays 2. The size of the trays 2 may also be larger than the mounting positions, and the lifting component 5 may extend from both sides of the mounting positions to lift the trays 2, etc. This embodiment does not impose any limitations.

[0044] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A motor calibration device, characterized in that, include: A frame (1) is provided with a tray (2) for mounting the motor (A) to be tested. A pressure tool (4) is adapted to apply axial pressure along the motor end cover (B) of the motor under test (A). The pressure tool (4) is mounted on the side of the frame (1) away from the tray (2). When the pressure tool (4) applies axial pressure to the motor end cover (B), the tray (2) provides the motor under test (A) with a supporting force opposite to the axial pressure. A detection component (3) for detecting axial movement of the motor (A) under test, the detection component (3) being mounted on the frame (1) or the pressure fixture (4).

2. The motor calibration device according to claim 1, characterized in that, The detection component (3) includes a clamp (31) and a displacement sensor (32). The clamp (31) includes a lifting component (311) and a gripper (312) adapted to be driven by the lifting component (311) to approach or move away from the shaft (C) of the motor under test (A). The gripper (312) is used to hold the shaft (C). The displacement sensor (32) is used to measure the displacement of the shaft (C) when the clamp (31) holds the shaft (C) away from the motor under test (A).

3. The motor calibration device according to claim 2, characterized in that, The pressure fixture (4) includes a lifting assembly (41) and a pressure ring (42) installed on the movable end of the lifting assembly (41). The lifting assembly (41) is used to drive the pressure ring (42) to move closer to or further away from the motor under test (A). When the pressure ring (42) abuts against the motor end cover (B), the lifting assembly (41) applies the axial pressure to the motor end cover (B) through the pressure ring (42).

4. The motor calibration device according to claim 3, characterized in that, The pressure ring (42) has a through hole suitable for the shaft (C) to pass through, and the gripper (312) is located between the movable end and the pressure ring (42).

5. The motor calibration device according to claim 4, characterized in that, The pressure ring (42) is mounted on the movable end via a movable plate (43), and a displacement sensor (32) for detecting the displacement of the rotating shaft (C) is provided between the movable plate (43) and the pressure ring (42).

6. The motor calibration device according to claim 5, characterized in that, The movable plate (43) and the pressure ring (42) are connected by a mounting post (44), on which the displacement sensor (32) is mounted, and the lifting assembly (311) is mounted on the movable plate (43).

7. The motor calibration device according to claim 3, characterized in that, The lifting assembly (41) includes a drive motor (411) and a lead screw (412) that is connected to the drive motor (411) for driving the lead screw (412) to lift. The lead screw (412) is connected to the pressure ring (42).

8. The motor calibration device according to claim 2, characterized in that, The clamp (31) is provided with pressure rods (33) on both sides. The pressure rods (33) are used to abut against the motor (A) under test when the clamp (31) holds the rotating shaft (C).

9. The motor calibration device according to claim 1, characterized in that, Also includes: A lifting assembly (5) is installed between the frame (1) and the tray (2). The lifting assembly (5) is used to drive the tray (2) to move the motor under test (A) closer to or away from the detection assembly (3).

10. The motor calibration device according to claim 9, characterized in that, Also includes: The conveying assembly includes a conveyor belt located between the tray (2) and the lifting assembly (5), the conveyor belt having a plurality of mounting positions suitable for mounting the tray (2), and the mounting positions having movable holes suitable for the lifting assembly (5) to drive the tray (2) to move.

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