Flatness detection device for motor shell

Abstract

The utility model belongs to the field of flatness detection, and particularly relates to a motor shell flatness detection device. During use, a to-be-detected motor shell is placed on a turntable, the end plane of the outer side of a motor faces upwards, and then the height of a dial indicator is adjusted through a lifting bracket, so that the lower end of a detection rod of the dial indicator is in contact with the end of the motor shell; the motor shell located on the rotary table can be driven to rotate relative to the bottom plate by rotating the rotary table, the motor shell can be driven to move relative to the bottom plate by pushing and pulling the movable support, and the contact position of a detection rod of the dial indicator and the end of the motor shell can be changed through the operation. Therefore, the motor shell cannot be abraded, and the influence on the appearance quality of the motor shell in the detection process is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of flatness detection, and in particular to a device for detecting the flatness of a motor housing. Background Art

[0002] Flatness, which refers to the degree of flatness of a measured surface relative to an ideal surface, is a key indicator of workpiece quality. Flatness testing plays a crucial role in ensuring product performance, extending service life, and reducing failures. It is also a key component of enterprise quality control.

[0003] At present, when testing the flatness of the rotor housing end of a brushless DC motor, the following methods are often used: Figure 1 The device shown includes a base plate 100, a lifting bracket 200 arranged on the base plate 100, and a micrometer 300 installed on the lifting bracket 200. During the test, the tester needs to continuously move the motor housing on the base plate 100 by hand to change the contact position between the detection rod 310 of the micrometer 300 and the end of the motor housing. The direct movement of the motor housing on the base plate will cause wear on the surface of the motor housing, affecting its appearance quality. Utility Model Content

[0004] An embodiment of the present application provides a motor housing flatness detection device, which is used to solve the problem that when existing flatness detection instruments are used to test the motor housing, the motor housing moves directly on the bottom plate, causing wear on the surface of the motor housing.

[0005] To achieve the above objectives, the present application provides a motor housing flatness detection device, which includes:

[0006] base plate;

[0007] A lifting bracket is provided on the bottom plate;

[0008] a dial indicator, mounted on the lifting bracket;

[0009] a movable support placed on the bottom plate, the movable support comprising a bearing plate and a support assembly provided on a lower surface of the bearing plate, the support assembly being in rolling contact with the bottom plate; and

[0010] A turntable is rotatably arranged on the carrying plate, and the turntable is used for placing the motor housing to be tested.

[0011] Optionally, the support assembly includes three support rods, the upper ends of the three support rods are connected to the lower surface of the supporting plate, and the connection positions are respectively located at the three vertices of a triangle, and the lower ends of the three support rods are embedded with balls, and the lower ends of the support rods are in rolling contact with the base plate through the balls.

[0012] Optionally, the movable support further includes a handle, which is arranged on a side of the supporting plate and is used for the inspector to hold.

[0013] Optionally, the lifting bracket includes a column, a sleeve, a clamping arm and a fastening screw. The column is vertically fixed on the base plate, the sleeve is slidably mounted on the column, a threaded hole is provided on the side of the sleeve, and the fastening screw is arranged in the threaded hole. The sleeve can be locked to the column by screwing the fastening screw. One end of the clamping arm is fixed on the sleeve, and the micrometer is installed on the other end.

[0014] Optionally, the turntable includes a circular disc body and a rotating shaft coaxially fixed to the circular disc body, a mounting hole is provided on the supporting plate, and the rotating shaft is rotatably arranged in the mounting hole through a bearing.

[0015] Optionally, an upper annular groove is provided coaxially with the rotating shaft on the lower surface of the circular disk, and a lower annular groove corresponding to the upper annular groove is provided on the upper surface of the supporting plate around the mounting hole, and a plurality of steel balls are rolled between the upper annular groove and the lower annular groove.

[0016] Optionally, the motor housing flatness detection device further includes a drive motor, wherein the drive motor is disposed on the lower surface of the supporting plate, and an output end of the drive motor is connected to the rotating shaft.

[0017] Optionally, a paddle is provided on the detection rod of the micrometer, and the detection rod can be lifted upward by applying force upward to the paddle.

[0018] The beneficial effect of the motor housing flatness detection device provided by the present application is that, compared with the prior art, when the motor housing flatness detection device of the present application is used, the motor housing to be tested is placed on the turntable, and the end plane on the outer side of the motor is facing upward, and then the height of the micrometer is adjusted by the lifting bracket so that the lower end of the detection rod of the micrometer contacts the end of the motor housing. By rotating the turntable, the motor housing located thereon can be driven to rotate relative to the base plate, and by pushing and pulling the movable support, the motor housing can be driven to move relative to the base plate. The above operations can change the contact position between the detection rod of the micrometer and the end of the motor housing. Since the motor housing does not move directly on the base plate, it will not cause wear to the motor housing, thereby avoiding affecting the appearance quality of the motor housing during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] in:

[0021] Figure 1 It is a structural diagram of the motor housing to be tested and the existing flatness detection instrument;

[0022] Figure 2 1 is a schematic structural diagram of a motor housing flatness detection device according to an embodiment of the present application;

[0023] Figure 3 1 is a schematic structural diagram of a micrometer in a motor housing flatness detection device according to an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the connection between the movable support, the turntable, and the drive motor in the motor housing flatness detection device shown in one embodiment of the present application;

[0025] Figure 5 It is a structural schematic diagram of a turntable in a motor housing flatness detection device shown in an embodiment of the present application.

[0026] Description of main component symbols:

[0027] 10. Motor housing;

[0028] 100, bottom plate;

[0029] 200, lifting bracket; 210, column; 220, sliding sleeve; 230, clamping arm; 240, fastening screw;

[0030] 300, micrometer; 310, probe rod;

[0031] 400, movable support; 410, bearing plate; 420, support rod; 430, ball bearing; 440, handle;

[0032] 500, turntable; 510, circular disk body; 511, upper annular groove; 520, rotating shaft;

[0033] 600, drive motor;

[0034] 700, steel balls;

[0035] 800, pick. DETAILED DESCRIPTION

[0036] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many other forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0037] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0040] It should also be noted that, in the embodiments of the present application, the same figure mark represents the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0041] The embodiment of the present application provides a motor housing flatness detection device, such as Figure 2 As shown, the motor housing flatness detection device includes a base plate 100, a lifting bracket 200, a micrometer 300, a movable support 400, and a turntable 500. The lifting bracket 200 is set on the base plate 100, and the micrometer 300 is installed on the lifting bracket 200. The lifting bracket 200 can adjust the height of the micrometer 300 from the base plate 100 according to the height of the motor housing 10 to be tested. The movable support 400 is placed on the base plate 100. The movable support 400 includes a bearing plate 410 and a support assembly provided on the lower surface of the bearing plate 410. The support assembly is in rolling contact with the base plate 100. The turntable 500 is rotatably set on the bearing plate 410. The turntable 500 is used to place the motor housing 10 to be tested.

[0042] In an embodiment of the present application, when the motor housing flatness detection device is used, the motor housing 10 to be tested is placed on the turntable 500, and the end plane of the motor housing 10 is facing upward, and then the height of the micrometer 300 is adjusted by the lifting bracket 200, so that the lower end of the detection rod 310 of the micrometer 300 contacts the end of the motor housing 10, and the turntable 500 can be rotated relative to the base plate 100 by rotating it, and the motor housing 10 can be driven to move relative to the base plate 100 by pushing and pulling the movable support 400. The above operations can change the contact position between the detection rod 310 of the micrometer 300 and the end of the motor housing 10. Since the motor housing 10 does not move directly on the base plate 100, it will not cause wear to the motor housing 10, thereby avoiding affecting the appearance quality of the motor housing 10 during the detection process.

[0043] In one embodiment, if Figure 2 and Figure 4 As shown, the support assembly includes three support rods 420, the upper ends of the three support rods 420 are connected to the lower surface of the supporting plate 410, and the connection positions of the three support rods 420 and the supporting plate 410 are respectively located at the three vertices of a triangle, and the lower ends of the three support rods 420 are embedded with balls 430, and the lower ends of the three support rods 420 are in rolling contact with the base plate 100 through the balls 430.

[0044] The ball bearings 430 are used to achieve rolling contact between the support rod 420 and the base plate 100 , thereby reducing friction and improving the flexibility of the movable support 400 in moving on the base plate 100 .

[0045] In one embodiment, if Figure 2 and Figure 4 As shown, the movable support 400 also includes a handle 440, which is arranged on the side of the supporting plate 410. The handle 440 is used for the inspection personnel to hold it, so as to facilitate the application of horizontal external force to drive the movable support 400 to move forward, backward, left and right on the base plate 100.

[0046] In one embodiment, if Figure 2 As shown, the lifting bracket 200 includes a column 210, a sleeve 220, a clamping arm 230, and a fastening screw 240. The column 210 is vertically fixed to the base plate 100. The sleeve 220 is slidably mounted on the column 210. The side of the sleeve 220 is provided with a threaded hole, and the fastening screw 240 is disposed in the threaded hole. By tightening the fastening screw 240, the end of the fastening screw 240 extending into the threaded hole abuts against the outer wall of the column 210, thereby locking the sleeve 220 to the column 210. One end of the clamping arm 230 is fixed to the sleeve 220, and the other end is mounted with a dial indicator 300. The dial indicator 300 can be an electronic dial indicator.

[0047] In one embodiment, if Figure 4 As shown, the turntable 500 includes a circular disc body 510 and a rotating shaft 520 fixed coaxially with the circular disc body 510. The supporting plate 410 is provided with a mounting hole, and the rotating shaft 520 is rotatably arranged in the mounting hole through a bearing. By rotating the circular disc body 510, the motor housing located thereon can be driven to rotate.

[0048] It is understandable that the motor housing to be tested can be placed directly on the circular disk 510 or fixed to the circular disk 510 via furniture.

[0049] In a specific embodiment, combining Figure 4 and Figure 5 As shown, the lower surface of the circular disc 510 is provided with an upper annular groove 511 coaxially with the rotating shaft 520. The upper surface of the supporting plate 410 is provided with a lower annular groove (not shown) surrounding the mounting hole, corresponding to the upper annular groove 511. A plurality of steel balls 700 are rolled between the upper annular groove 511 and the lower annular groove. This arrangement further improves the load-bearing capacity of the circular disc 510 and its stability when rotating relative to the supporting plate 410.

[0050] In a specific embodiment, Figure 4 and Figure 5 As shown, the motor housing flatness detection device also includes a drive motor 600, which is disposed on the lower surface of the carrier plate 410. The output end of the drive motor 600 is connected to the rotating shaft 520. The drive motor 600 drives the rotating shaft 520 to rotate, thereby driving the circular disk 510 to rotate. Manual rotation is no longer required, reducing the burden on the inspection personnel. Specifically, the drive motor 600 can be a reduction motor.

[0051] In some embodiments, as Figure 2 and Figure 3 As shown, a paddle 800 is provided on the detection rod 310 of the micrometer 300 , and the detection rod 310 can be lifted upward by applying force upward to the paddle 800 .

[0052] It should be noted that after each test is completed and during the process of replacing the motor housing 10, the traditional operation method requires pinching the detection rod 310 of the micrometer 300 by hand and lifting it upward until the next motor housing 10 to be tested is placed in place, and then releasing the detection rod 310, so that the detection rod 310 falls and contacts the motor housing 10 to be tested, which is very inconvenient to operate.

[0053] In the embodiment of the present application, a paddle 800 is provided on the probe rod 310, so that the inspector can lift the probe rod 310 upward with the aid of the paddle 800. Specifically, the paddle 800 is arc-shaped, and one end is fixed to the probe rod 310 of the dial indicator 300 through a rubber sleeve.

[0054] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A motor housing flatness detection device, characterized in that: include: base plate; A lifting bracket is provided on the bottom plate; a dial indicator, mounted on the lifting bracket; A movable support is placed on the bottom plate, the movable support comprising a bearing plate and a support assembly provided on the lower surface of the bearing plate, the support assembly being in rolling contact with the bottom plate; as well as A turntable is rotatably arranged on the carrying plate, and the turntable is used for placing the motor housing to be tested.

2. The motor housing flatness detection device according to claim 1, characterized in that: The support assembly includes three support rods, the upper ends of the three support rods are connected to the lower surface of the supporting plate, and the connection positions are respectively located at the three vertices of a triangle. The lower ends of the three support rods are embedded with balls, and the lower ends of the support rods are in rolling contact with the base plate through the balls.

3. The motor housing flatness detection device according to claim 1, characterized in that: The movable support further comprises a handle, which is arranged on a side of the carrying plate and is used for being held by an inspector.

4. The motor housing flatness detection device according to claim 1, characterized in that: The lifting bracket includes a column, a sliding sleeve, a clamping arm and a fastening screw. The column is vertically fixed on the base plate. The sliding sleeve is slidably mounted on the column. A threaded hole is provided on the side of the sliding sleeve. The fastening screw is arranged in the threaded hole. The sliding sleeve can be locked to the column by screwing the fastening screw. One end of the clamping arm is fixed on the sliding sleeve, and the other end is equipped with the dial indicator.

5. The motor housing flatness detection device according to claim 1, characterized in that: The turntable includes a circular disk body and a rotating shaft fixed coaxially with the circular disk body. A mounting hole is provided on the supporting plate, and the rotating shaft is rotatably arranged in the mounting hole through a bearing.

6. The motor housing flatness detection device according to claim 5, characterized in that: An upper annular groove is provided on the lower surface of the circular disk coaxially with the rotating shaft, and a lower annular groove corresponding to the upper annular groove is provided on the upper surface of the supporting plate surrounding the mounting hole, and a plurality of steel balls are rolled between the upper annular groove and the lower annular groove.

7. The motor housing flatness detection device according to claim 5, characterized in that: The motor housing flatness detection device further includes a driving motor, which is disposed on the lower surface of the supporting plate, and an output end of the driving motor is connected to the rotating shaft.

8. The motor housing flatness detection device according to any one of claims 1 to 7, characterized in that: The detection rod of the micrometer is provided with a paddle, and the detection rod can be lifted upward by applying force to the paddle upward.

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