Motor shell wall thickness testing device and testing method

Abstract

The invention discloses a motor shell wall thickness testing device and a testing method.The testing device comprises a testing table and a micrometer, one side of the testing table is fixedly connected with a stand column, the upper end of the stand column is fixedly connected with an annular sliding rail, an annular moving sliding block is installed on the annular sliding rail, a lifting plate is installed on the annular moving sliding block, and a horizontal sliding rail is arranged on the lifting plate; the horizontal sliding rail is provided with a horizontal moving sliding block, the horizontal moving sliding block is provided with a clamping groove, a micrometer frame of the micrometer is clamped into the clamping groove and fixedly connected with the horizontal moving sliding block, and two oppositely-arranged clamping plates are installed on the testing table and driven by an air cylinder to move. According to the motor shell wall thickness testing device, wall thickness testing can be conveniently carried out on motor shells of various specifications, and rapid wall thickness measurement can be carried out on different positions of the motor shells of various shapes. The difficulty of testing the wall thickness of the motor shell is reduced, the testing process is more labor-saving and rapid, and the measured data is more accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of thickness measurement, and in particular relates to a device and a method for testing the wall thickness of a motor housing. Background Art

[0002] The motor housing is generally made of metal material, which can be made by stamping or casting. After the motor housing is produced, its wall thickness needs to be measured to verify whether the processing process is accurate. In the prior art, random inspection is generally adopted, and the motor housing is measured manually using measuring tools such as micrometers. This measurement method requires workers to have certain measurement experience and is more dependent on the worker's operation. Due to different motor specifications, the shape and size of the motor housing are different. During the process of measuring the wall thickness, the shell is not easy to fix, resulting in unstable measurement data. Repeated operations are required to complete the measurement process. Summary of the invention

[0003] In order to solve the above technical problems, the technical solution adopted by the present invention is: a motor housing wall thickness testing device, including a test bench and a micrometer, one side of the test bench is fixedly connected to a column, the upper end of the column is fixedly connected to an annular slide rail, an annular movable slider moving along the annular slide rail is installed on the annular slide rail, a lifting plate is installed on the annular movable slider through a lifting rod, a horizontal slide rail is provided on the lifting plate, the horizontal slide rail is vertically pointed to the central axis of the annular slide rail, a horizontal movable slider is installed on the horizontal slide rail, a slot is provided on the horizontal movable slider, and the scale frame of the micrometer is inserted into the slot and Fixedly connected with the horizontally movable slider, the micrometer is provided with a fixed chuck and a movable chuck, the fixed chuck is connected with a fixed extension plate, the movable chuck is connected with a movable extension plate, a fixed extension chuck is provided on the inner side of the fixed extension plate, the end face of the fixed extension chuck is in the same plane with the end face of the fixed chuck, a movable extension chuck is provided on the inner side of the movable extension plate, the end face of the movable extension chuck is in the same plane with the end face of the movable chuck, two oppositely arranged clamps are installed on the test bench, the clamps are respectively located on both sides of the test bench, and the clamps are respectively driven to move by cylinders.

[0004] As a preferred embodiment of the above technical solution, the upper end of the fixed extension plate is provided with a through hole for the fixed clamp to pass through, and the fixed clamp is inserted into the through hole and fixedly connected to the fixed extension plate by screws, and the fixed clamp is provided with a screw hole for the screw to be screwed in, and the upper end of the movable extension plate is provided with a through hole for the movable clamp to pass through, and the movable clamp passes through the through hole and is fixedly connected to the movable extension plate by screws, and the movable clamp is provided with a screw hole for the screw to be screwed in.

[0005] As a preferred embodiment of the above technical solution, the inner side of the splint is arc-shaped, and an elastic buffer layer is fixed to the inner side of the splint.

[0006] As a preferred embodiment of the above technical solution, the test bench is provided with an elastic support portion for placing the motor housing.

[0007] As a preferred embodiment of the above technical solution, a vertical slide rail is provided on the column, a vertical slider is installed on the vertical slide rail, and the vertical slider is fixedly connected with a horizontal calibration plate.

[0008] As a preferred embodiment of the above technical solution, a magnet is fixedly connected to the upper end of the vertical slide rail, and a magnetic attraction portion for the magnet to attract is provided on the horizontal calibration plate.

[0009] As a preferred embodiment of the above technical solution, the micrometer is a digital micrometer.

[0010] As a preferred embodiment of the above technical solution, the horizontal movable sliding block is provided with a plurality of bolt holes respectively connected to the clamping slots, and the bolt holes are respectively threadedly connected with clamping bolts.

[0011] As a preferred embodiment of the above technical solution, the lifting rod is a hydraulic lifting rod.

[0012] A method for testing the wall thickness of a motor housing, using the above-mentioned testing device, includes the following steps: placing the motor housing on a test bench, driving a clamping plate driven by a cylinder to move, and clamping the motor housing with the clamping plate to fix and position the motor housing; horizontally moving a horizontal moving slider so that the fixed extension plate on the micrometer is located above the inside of the motor housing, and the movable extension plate is located above the outside of the motor housing; pulling the lifting plate down so that the fixed extension plate is inserted into the inside of the motor housing; fine-tuning the position of the horizontal moving slider so that the fixed extension chuck is close to the inner wall of the motor housing; rotating the micrometer's micrometer screw to drive the movable extension plate to move so that the movable extension chuck clamps the outer wall of the motor housing, reading the measurement data on the micrometer to obtain the wall thickness of the motor housing; rotating the micrometer's micrometer screw in the opposite direction, pulling the lifting plate up or down, and measuring the wall thickness of the motor housing at different heights; moving the annular moving slider along the annular slide rail to measure the wall thickness of the motor housing at different positions.

[0013] The beneficial effects of the present invention are as follows: the motor housing wall thickness testing device of the present invention can conveniently test the wall thickness of motor housings of various specifications, and can quickly measure the wall thickness of motor housings of various shapes at different positions. The difficulty of motor housing wall thickness testing is reduced, the testing process is more labor-saving and quick, and the measurement data is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1 As shown, a motor housing wall thickness testing device comprises a test bench 1 and a micrometer 2. A column 3 is fixedly connected to one side of the test bench 1. An annular slide rail 4 is fixedly connected to the upper end of the column 3. An annular movable slider 5 moving along the annular slide rail 4 is installed on the annular movable slider 5. A lifting plate 7 is installed on the annular movable slider 5 through a lifting rod 6. A horizontal slide rail is arranged on the lifting plate 7. The horizontal slide rail vertically points to the central axis of the annular slide rail 4. A horizontal movable slider 8 is installed on the horizontal slide rail. A slot 9 is arranged on the horizontal movable slider 8. A ruler frame 10 of the micrometer 2 is inserted into the slot 9 and fixedly connected to the horizontal movable slider 8. The micrometer 2 A fixed chuck 11 and a movable chuck 12 are provided on the test bench 1. The fixed chuck 11 is connected to a fixed extension plate 13. The movable chuck 12 is connected to a movable extension plate 14. A fixed extension chuck 15 is provided on the inner side of the fixed extension plate 13. The end face of the fixed extension chuck 15 is in the same plane as the end face of the fixed chuck 11. A movable extension chuck 16 is provided on the inner side of the movable extension plate 14. The end face of the movable extension chuck 16 is in the same plane as the end face of the movable chuck 12. Two oppositely arranged clamps 17 are installed on the test bench 1. The clamps 17 are respectively located on both sides of the test bench 1. The clamps 17 are respectively driven to move by cylinders 18.

[0019] Furthermore, the upper end of the fixed extension plate 13 is provided with a through hole for the fixed chuck 11 to pass through, and the fixed chuck 11 is inserted into the through hole and fixedly connected to the fixed extension plate 13 by screws, and the fixed chuck 11 is provided with a screw hole for screwing in, and the upper end of the movable extension plate 14 is provided with a through hole for the movable chuck 12 to pass through, and the movable chuck 12 passes through the through hole and is fixedly connected to the movable extension plate 14 by screws, and the movable chuck 12 is provided with a screw hole for screwing in. The micrometer 2 can be purchased from an existing commercially available micrometer 2, and corresponding screw holes are machined on its fixed chuck 11 and movable chuck 12, and the fixed extension plate 13 and the movable extension plate 14 are assembled with screws. The fixed extension plate 13 and the movable extension plate 14 can be configured in multiple sets. Different sets of fixed extension plates 13 and movable extension plates 14 have different lengths to accommodate motor housings 24 of different specifications.

[0020] Furthermore, the inner side of the clamping plate 17 is in an arc shape, and an elastic buffer layer is fixed to the inner side of the clamping plate 17. The shape of the clamping plate 17 can also be customized according to the different motor housings 24, and the working shaft of the cylinder can be detachably connected by screws. The elastic buffer layer can be a sponge, a rubber pad, etc., which can protect the surface of the motor housing 24 and prevent scratches and crushing of the motor housing 24. At the same time, a certain degree of freedom is provided to the motor housing 24 located between the clamping plates 17, and the angle of the motor housing 24 can be adjusted within a certain angle range.

[0021] Furthermore, the test bench 1 is provided with an elastic support portion 30 for placing the motor housing 24. The elastic support portion 30 protects the bottom of the motor housing 24 and also provides a certain degree of freedom for the motor housing 24 after clamping.

[0022] Furthermore, the column 3 is provided with a vertical slide rail 19, on which a vertical slider 20 is mounted, and the vertical slider 20 is fixedly connected with a horizontal calibration platen 21. The horizontal calibration platen 21 is pressed down, and the upper end of the motor housing 24 is pressed by the horizontal calibration platen 21, so that the motor housing 24 forms a vertical state, thereby positioning the motor housing 24, so that the micrometer 2 can measure the wall thickness of the motor housing 24 more accurately.

[0023] Furthermore, a magnet is fixedly connected to the upper end of the vertical slide rail 19, and a magnetic attraction portion 22 for the magnet to attract is provided on the horizontal calibration platen 21. After the horizontal calibration platen 21 is lifted, the magnetic attraction portion 22 is attracted by the magnet, thereby fixing the horizontal calibration platen 21, without affecting the subsequent operation of the micrometer 2 to measure the wall thickness of the motor housing 24.

[0024] Further, the micrometer 2 is a digital micrometer 2. The digital micrometer 2 is convenient and quick to read.

[0025] Further, the horizontal moving slide block 8 is provided with a plurality of bolt holes respectively connected to the card slots 9, and the bolt holes are respectively threadedly connected with clamping bolts 23. The micrometer 2 can be replaced and maintained by loosening the clamping bolts 23.

[0026] Furthermore, the lifting rod 6 is a hydraulic lifting rod 6. The hydraulic lifting rod 6 has a damping effect, and the height of the micrometer 2 can be better controlled and adjusted.

[0027] The motor housing wall thickness test method uses the above-mentioned test device, and includes the following steps: placing the motor housing 24 on the test bench 1, the cylinder 18 drives the clamping plate 17 to move, and the clamping plate 17 is used to clamp the motor housing 24 to fix and position the motor housing 24; horizontally moving the horizontal moving slider 8 so that the fixed extension plate 13 on the micrometer 2 is located above the inside of the motor housing 24, and the movable extension plate 14 is located above the outside of the motor housing 24; pulling the lifting plate 7 down, so that the fixed extension plate 13 is inserted into the inside of the motor housing 24; Fine-tune the position of the horizontal movable slider 8 so that the fixed extension chuck 15 is close to the inner wall of the motor housing 24; rotate the micrometer screw of the micrometer 2 to drive the movable extension plate 14 to move, so that the movable extension chuck 16 clamps the outer wall of the motor housing 24, read the measurement data on the micrometer 2, and obtain the wall thickness of the motor housing 24; reversely rotate the micrometer screw of the micrometer 2 to pull the lifting plate 7 up or down to measure the wall thickness at different heights of the motor housing 24; move the annular movable slider 5 along the annular slide 4 to measure the wall thickness at different positions of the motor housing 24. The cross-section of the motor housing 24 can be any shape such as circular or square. By moving the annular movable slider 5 along the annular slide 4, moving up and down by the lifting rod 6, and by horizontally moving the horizontal movable slider 8 on the horizontal slide, the position of the micrometer 2 can be adjusted arbitrarily, so that the wall thickness test can be performed at any position of the motor housing 24.

[0028] It is worth mentioning that the technical features such as the cylinder and micrometer involved in the patent application of this invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0029] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. Motor housing wall thickness testing device, characterized in that: Material toggling mechanism, its both sides respectively have the cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

2. The motor housing wall thickness testing device according to claim 1, characterized in that: The upper end of the fixed extension plate is provided with a through hole for the fixed clamp to pass through. After the fixed clamp is inserted into the through hole, it is fixedly connected to the fixed extension plate by screws. The fixed clamp is provided with a screw hole for the screw to be screwed in. The upper end of the movable extension plate is provided with a through hole for the movable clamp to pass through. The movable clamp passes through the through hole and is fixedly connected to the movable extension plate by screws. The movable clamp is provided with a screw hole for the screw to be screwed in.

3. The motor housing wall thickness testing device according to claim 1, characterized in that: The inner side of the splint is in an arc shape, and an elastic buffer layer is fixed on the inner side of the splint.

4. The motor housing wall thickness testing device according to claim 3, characterized in that: The test bench is provided with an elastic support portion for placing the motor housing.

5. The motor housing wall thickness testing device according to claim 4, characterized in that: The column is provided with a vertical slide rail, the vertical slide rail is installed with a vertical slider, and the vertical slider is fixedly connected with a horizontal calibration pressing plate.

6. The motor housing wall thickness testing device according to claim 5, characterized in that: The upper end of the vertical slide rail is fixedly connected with a magnet, and the horizontal calibration pressing plate is provided with a magnetic attraction portion for the magnet to attract.

7. The motor housing wall thickness testing device according to claim 1, characterized in that: The micrometer is a digital micrometer.

8. The motor housing wall thickness testing device according to claim 1, characterized in that: The horizontally movable sliding block is provided with a plurality of bolt holes respectively connected to the clamping slots, and the bolt holes are respectively threadedly connected with clamping bolts.

9. The motor housing wall thickness testing device according to claim 1, characterized in that: The lifting rod is a hydraulic lifting rod.

10. A method for testing the wall thickness of a motor housing, characterized in that: Using the test device as described in any one of claims 1 to 9, comprising the following steps: placing the motor housing on the test bench, driving the clamping plate to move by the cylinder, and clamping the motor housing with the clamping plate to fix and position the motor housing; Move the horizontal moving slider horizontally so that the fixed extension plate on the micrometer is located above the inside of the motor housing, and the movable extension plate is located above the outside of the motor housing; pull the lifting plate down so that the fixed extension plate is inserted into the inside of the motor housing; fine-tune the position of the horizontal moving slider so that the fixed extension chuck is close to the inner wall of the motor housing; rotate the micrometer screw to drive the movable extension plate to move, so that the movable extension chuck clamps the outer wall of the motor housing, read the measurement data on the micrometer, and obtain the wall thickness of the motor housing; rotate the micrometer screw in the opposite direction, pull the lifting plate up or down, and measure the wall thickness of the motor housing at different heights; move the annular moving slider along the annular slide rail to measure the wall thickness of the motor housing at different positions.

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