Detection mechanism and detection method for motor shell

Abstract

The invention relates to a motor shell detection mechanism and method, the motor shell detection mechanism further comprises a base slidably connected to a rack and an upper elastic measuring claw mechanism slidably connected to the rack, the sliding path of the upper elastic measuring claw mechanism corresponds to the sliding path of the base, and the rack is provided with a turntable; the rotating disc rotates with the movement direction of the upper elastic measuring claw mechanism as the axis and is used for driving the motor shell to rotate, and the upper elastic measuring claw mechanism is used for detecting the inner diameter of an upper spigot of the motor shell. The detection mechanism has the advantages of being high in automation degree, capable of detecting the inner diameter, the upper seam allowance, the lower seam allowance and the height of the motor shell, capable of feeding back detection data in real time and the like.

Description

Technical Field

[0001] The present application relates to a detection mechanism and a detection method for a motor housing, and belongs to the technical field of motor housing detection. Background Art

[0002] With the development of economy and the continuous improvement of people's living standards, cars have become an important means of travel for people. During the use of cars, their motors are their main core power. Therefore, the detection of the housing of new energy vehicle drive motors is very important and necessary.

[0003] During the processing of the motor casing, it is necessary to machine the upper and lower stoppers on the inner wall of the motor casing. Due to the wear of the tool, there are differences in the inner diameter sizes of the same batch of motor casings. If the inner diameter of the casing is too large, the electric iron core will fall off. If the inner diameter of the casing is too small, the iron core will touch the casing, affecting the normal operation of the iron core.

[0004] The error of the inner diameter of traditional motor housings is within 0.5 mm, and the requirements for detection agencies are not high. With the development of new energy vehicles, the error of the inner diameter of existing motor housings needs to be within 0.06 mm, and the requirements for detection agencies are also increased accordingly; and traditional detection agencies are unable to detect the produced motor housings in real time, and therefore cannot make corrections in time.

[0005] Therefore, in order to solve the above technical problems, it is necessary to provide a detection mechanism and a detection method for a motor housing to overcome the above defects in the prior art.

Method content

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: it includes a frame, a base slidably connected to the frame, and an upper elastic measuring claw mechanism slidably connected to the frame, the sliding path of the upper elastic measuring claw mechanism corresponds to the sliding path of the base, the frame is equipped with a turntable, the turntable rotates with the direction of movement of the upper elastic measuring claw mechanism as the axis, the turntable is used to drive the motor housing to rotate, the upper elastic measuring claw mechanism is used to detect the inner diameter of the upper stop of the motor housing, and continuously transmit the detected data through the data port.

[0007] By adopting the above technical solution, the base can drive the motor housing to move to the upper elastic measuring claw mechanism. The upper elastic measuring claw mechanism is used to detect the inner diameter of the upper stop of the motor housing to obtain the first data. The motor housing is driven to rotate by rotating the turntable. The motor housing after adjusting the position enters the upper elastic measuring claw mechanism again to obtain the second data of the upper stop of the motor housing. The inner diameter of the upper stop is obtained by combining the first data and the second data. The continuously transmitted data can determine in real time whether the produced motor housing meets the standards.

[0008] A detection mechanism for a motor housing of the present invention is further configured as follows: an upper elastic measuring claw mechanism includes two upper inner diameter measuring heads, the upper inner diameter measuring heads are longitudinally moved on the frame by upper longitudinal cylinders, and the two upper longitudinal cylinders are fixedly connected to the frame.

[0009] A detection mechanism for a motor housing of the present invention is further configured as follows: a through slot is opened on the base, a lower elastic measuring claw mechanism is slidably connected to the frame, the lower elastic measuring claw mechanism can pass through the base, and the lower elastic measuring claw mechanism is used to detect the inner diameter of the lower stop of the motor housing.

[0010] The detection mechanism of a motor housing of the present invention is further configured as follows: a plurality of positioning blocks are installed on the side walls of the through slot, and the plurality of positioning blocks can move away from or close to the center point of the through slot.

[0011] By adopting the above technical solution, the positioning block can fix the position of the motor housing and improve stability.

[0012] The detection mechanism of a motor housing of the present invention is further configured as follows: a turntable moves up and down through a telescopic mechanism, the turntable can pass through a base, and the telescopic mechanism is installed on a frame.

[0013] By adopting the above technical solution, the turntable can lift up the motor housing and rotate to adjust the position of the motor housing when lifting up. When the turntable falls, the motor housing is fixed by the positioning block. When the turntable falls under the base, in order to avoid affecting the normal movement of the base, the turntable can automatically adjust the position of the motor housing, thereby improving the level of automation.

[0014] The detection mechanism of a motor housing of the present invention is further configured to include: a plug probe mechanism, the plug probe is slidably connected to the frame, and the sliding path of the plug probe mechanism corresponds to the sliding path of the base.

[0015] By adopting the above technical solution, the plug probe is used to measure the inner diameter of the motor housing. The sliding paths correspond, and the inner diameter of the motor housing and the inner diameter of the lower stop can be detected at the same time. The plug probe can slide up and down to obtain the two inner diameters of the motor housing in the vertical direction.

[0016] The detection mechanism of a motor housing of the present invention is further configured such that the moving path of the plug probe mechanism corresponds to the moving position of the lower elastic measuring claw mechanism.

[0017] By adopting the above technical solution, the plug probe mechanism and the elastic measuring claw mechanism can measure the motor housing at the same time, thereby speeding up the measurement time.

[0018] The detection mechanism of a motor housing of the present invention is further configured to include a height measuring mechanism, which is installed on a frame and is used to measure the height of the motor housing.

[0019] A method for detecting a motor housing of the present invention comprises the following steps: 1) Use the detection mechanism to detect the first manufactured motor housing and measure the inner diameter of a certain point of the upper stop of the motor housing; 2) After rotating the motor housing 90 degrees, use the detection mechanism to measure the other inner diameter of the upper stop of the motor housing, and take the average value of the two inner diameters. When the average value differs from the standard value within 0.06mm, the motor housing is produced. The motor housing after production is tested by the detection mechanism in turn; 3) When the average value differs from the standard value by more than 0.06mm, readjust the production mechanism of the motor housing and then test the motor housing until the new average value meets the standard.

[0020] A motor casing detection method of the present invention is further configured as follows: the specific steps of step 1 are: the specific steps of step 1 are: place the motor casing on a base, start the base to link the motor casing to move below the upper elastic measuring claw mechanism, move the two upper inner diameter measuring heads into the motor casing, move the upper inner diameter measuring heads longitudinally, and measure the inner diameter of the stopper on the motor casing.

[0021] A motor housing detection method of the present invention is further configured as follows: the specific steps of step 3 are: the detection mechanism can feed back the detected values ​​to the mechanism for manufacturing the motor housing in real time, and the mechanism for manufacturing the motor housing adjusts the tool for processing the motor housing in real time.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. The detection mechanism in the present invention can feed back the data of the inner diameter of the motor housing to the production mechanism of the motor housing in real time. The production mechanism of the motor housing adjusts the position of the processing tool according to the data in real time, thereby processing a motor housing that meets the standards.

[0023] 2. The upper elastic measuring claw mechanism and the lower elastic measuring claw mechanism in the present invention can measure the upper stop and the lower stop on the motor housing to obtain average data of the upper stop and the lower stop.

[0024] 3. The plug probe mechanism and the lower elastic measuring claw mechanism in the present invention can measure the motor housing at the same time, thus speeding up the measuring time.

[0025] 4. The motor housing detection mechanism of the present invention has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the motor housing detection mechanism of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the middle base; Figure 3 for Figure 1 Schematic diagram of the structure of the middle and lower elastic measuring claw mechanism; Figure 4 for Figure 1 A schematic diagram of the structure of the middle and upper elastic measuring claw mechanism and the plug measuring head mechanism; Figure 5 for Figure 1 Schematic diagram of the structure of the medium-height measurement mechanism; Figure 6 for Figure 1 Schematic diagram of the structure of the motor housing. DETAILED DESCRIPTION

[0027] Please refer to the instruction manual Figure 1 To Attachment Figure 6 As shown, the horizontal direction is a and the vertical direction is b. The present invention is a detection mechanism and a detection method for a motor housing. The motor housing 1 is in an elliptical cylindrical shape. An upper stop 11 is provided on the inner wall of the upper end of the motor housing 1, and a lower stop 12 is provided on the inner wall of the lower end of the motor housing 1. The detection mechanism includes a frame 2 and a base 21 slidably connected to the frame 2 in a transverse direction. The base 21 passes through a turntable 22, a lower elastic measuring claw mechanism 3, a plug probe 43 mechanism 4, an upper elastic measuring claw mechanism 5 and a height measuring mechanism 6 longitudinally installed on the frame 2 in sequence. In this embodiment, the lower elastic measuring claw mechanism 3 corresponds to the plug probe 43 mechanism 4, and the upper elastic measuring claw mechanism 5 corresponds to the height measuring mechanism 6. The detection mechanism can feed back the data of the inner diameter of the motor housing 1 to the production mechanism of the motor housing in real time. The production mechanism of the motor housing adjusts the position of the processing tool according to the data in real time, thereby processing a motor housing 1 that meets the standards.

[0028] The turntable 22 moves up and down through the telescopic mechanism 221, and the telescopic mechanism 221 is installed on the frame 2. In this embodiment, the turntable 22 is cross-shaped and includes two layers. The top layer of the turntable 22 is smaller than the inner diameter of the motor housing 1, and the bottom layer of the turntable 22 is larger than the inner diameter of the motor housing 1. When in use, the motor housing 1 can be mounted on the turntable 22.

[0029] The base 21 is provided with a through slot 23 for the turntable 22 to move up and down. The turntable 22 can pass through the base 21. A plurality of positioning blocks 231 are installed on the side wall of the through slot 23. The plurality of positioning blocks 231 can move away from or close to the center point of the through slot 23. When in use, the turntable 22 extends out of the base 21 through the through slot 23, the motor housing 1 is placed on the turntable 22, the height of the turntable 22 is lowered until the motor housing 1 is installed on the turntable 22, and the positioning blocks 231 are moved away from the center point of the through slot 23 until the motor housing 1 is fixed on the base 21. In this embodiment, the base 21 is moved laterally by the servo motor 211. Two sensors 222 are also installed on the frame 2. The two sensors 222 are located on both sides of the turntable 22. When the turntable 22 drives the motor housing 1 to move onto the base 21, the sensor 222 receives a signal and starts the positioning blocks 231 to clamp the motor housing 1, which has a high degree of automation.

[0030] The lower elastic measuring claw mechanism 3 includes two lower inner diameter measuring heads 31, which are laterally moved on the frame 2 by the lower transverse cylinder 32. The two lower transverse cylinders 32 are fixedly connected to the lower mounting plate 33, and the lower mounting plate 33 is lifted and lowered by the lower lifting cylinder 1 35. A lower abutment block 34 is fixedly connected to the lower mounting plate 33, and a movable groove for the lower inner diameter measuring head 31 to move is provided on the lower abutment block 34. The lower abutment block 34 is used to protect the lower inner diameter measuring head 31 to prevent the lower inner diameter measuring head 31 from touching the motor housing 1 when the lower inner diameter measuring head 31 is raised, causing damage to the lower inner diameter measuring head 31. The lower inner diameter measuring head 31 is used to measure the inner diameter of the lower stop 12 of the motor housing 1.

[0031] The plug probe mechanism 4 includes a support plate 41 fixed to the top of the frame 2, and a plug probe 43 is slidably connected to the support plate 41. The plug probe 43 is driven in the vertical direction by the plug cylinder 42. A sensing point (not shown in the figure) is installed on each end of the plug probe 43. The two sensing points are used to measure the inner diameter of the motor housing 1. The sliding path of the plug probe 43 corresponds to the sliding path of the lower inner diameter probe 31, and can simultaneously detect the inner diameter of the motor housing 1 and the inner diameter of the lower stop 12. The plug probe 43 can slide up and down to obtain two inner diameters of the motor housing 1 in the vertical direction, thereby avoiding excessive error of the inner diameter of the motor housing 1 in the vertical direction.

[0032] The upper elastic measuring claw mechanism 5 includes two upper inner diameter measuring heads 51, which are longitudinally moved on the frame 2 by the upper longitudinal cylinder 52. The two upper longitudinal cylinders 52 are fixedly connected to the upper mounting plate 53, and the upper mounting plate 53 is lifted and lowered by the upper lifting cylinder 55. An upper abutment block 54 is fixedly connected to the upper mounting plate 53, and a movable groove for the upper inner diameter measuring head 51 to move is provided on the upper abutment block 54. The upper abutment block 54 is used to protect the upper inner diameter measuring head 51 to prevent the upper inner diameter measuring head 51 from touching the motor housing 1 when the upper inner diameter measuring head 51 is raised, thereby causing damage to the upper inner diameter measuring head 51. The upper inner diameter measuring head 51 is used to measure the inner diameter of the upper stop 12 of the motor housing 1.

[0033] The height measuring mechanism 6 includes an upper dial gauge block 61 and a lower dial gauge block 62. The upper dial gauge block 61 is lifted and lowered by an upper height cylinder 611, and the lower dial gauge block 62 is lifted and lowered by a lower height cylinder 621. A sensor fixing plate 63 is installed below the upper dial gauge block 61. In this embodiment, the sensor fixing plate 63 is arc-shaped, and sensors 2 64 are installed at both ends of the sensor fixing plate 63. When the motor housing 1 moves toward the upper dial gauge block 61, the sensor 2 64 can sense the position of the motor housing 1 to prevent the motor housing 1 from colliding with the upper dial gauge block 61 when moving.

[0034] The working principle of the detection mechanism of the motor housing 1 of the present invention is as follows: first, the motor housing 1 is placed on the turntable 22, the height of the turntable 22 is lowered until the motor housing 1 is placed on the base 21, the positioning block 231 is started, and the plurality of positioning blocks 231 are moved away from the center of the through slot 23 until the plurality of positioning blocks 231 fix the motor housing 1, the base 21 is moved, the motor housing 1 is moved downward to the elastic measuring claw mechanism 3, the lifting cylinder 1 is started, and the two lower inner diameter measuring heads 31 are linked to move to the lower stop 12 of the motor housing 1 , start the lower horizontal cylinder 32, move the lower inner diameter probe 31 to the side wall of the lower stop 12 of the motor housing 1, and obtain the inner diameter of the lower stop 12, move the plug probe 43 into the motor housing 1, and obtain the inner diameter of the motor housing 1 through the sensing point on the plug probe 43, and lift the plug probe 43 again to obtain another inner diameter of the motor housing 1 through the sensing point. After detecting the inner wall of the motor housing 1 and the inner diameter of the lower stop 12, move the base 21 to move the motor housing 1 to the upper elastic measuring claw mechanism 5, and start the lifting cylinder 2. The two upper inner diameter measuring heads 51 are linked to move toward the side wall of the upper stop 11 of the motor to obtain the inner diameter of the upper stop 11, and the upper dial gauge measuring block 61 and the lower dial gauge measuring block 62 are moved to the motor housing 1 to measure the height of the motor housing 1. After detecting the height of the motor housing 1 and the inner diameter of the upper stop 11, the base 21 drives the motor housing 1 to move above the turntable 22, releases the connection between the positioning block 231 and the motor housing 1, raises the turntable 22, lifts the motor housing 1, rotates 90 degrees, and fixes the motor housing 1 again. On the base 21, the mobile base 21 detects the inner diameter, the lower stop 12, the upper stop 11 and the height of the inner wall of the motor housing 1 in turn to obtain a second set of data, and takes the average of the two sets of data and compares them with the standard size. If the value is within 0.06mm of the standard, production is carried out. Otherwise, the tool is readjusted to process a new motor housing 1 until the processing meets the standard motor housing 1. The motor housings 1 to be produced are inspected by the inspection mechanism in turn. If an unqualified motor housing 1 is found, the above-mentioned tool adjustment steps are repeated to realize the inspection of the motor housing 1.

[0035] The above specific implementation methods are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection mechanism for a motor housing, comprising a frame, Features: It also includes a base slidably connected to the frame and an upper elastic measuring claw mechanism slidably connected to the frame, the sliding path of the upper elastic measuring claw mechanism corresponds to the sliding path of the base, the frame is equipped with a turntable, the turntable rotates with the direction of movement of the upper elastic measuring claw mechanism as the axis, the turntable is used to drive the motor housing to rotate, the upper elastic measuring claw mechanism is used to detect the inner diameter of the upper stop of the motor housing, and continuously transmit the detected data through the data port.

2. A motor housing detection mechanism according to claim 1, Features: The upper elastic measuring claw mechanism comprises two upper inner diameter measuring heads, which are longitudinally moved on the frame by upper longitudinal cylinders, and the two upper longitudinal cylinders are fixedly connected to the frame.

3. A motor housing detection mechanism according to claim 1, Features: A through slot is provided on the base, and a lower elastic measuring claw mechanism is slidably connected to the frame. The lower elastic measuring claw mechanism can pass through the base, and the lower elastic measuring claw mechanism is used to detect the inner diameter of the lower stop of the motor housing.

4. A motor housing detection mechanism according to claim 1, Features: The turntable moves up and down through a telescopic mechanism, the turntable can pass through the base, and the telescopic mechanism is installed on the frame.

5. A motor housing detection mechanism according to claim 3, Features: A plurality of positioning blocks are installed on the side walls of the through slot, and the plurality of positioning blocks can move away from or close to the center point of the through slot.

6. A motor housing detection mechanism according to claim 3, Features: It also includes a plug probe mechanism, the plug probe is slidably connected to the frame, and the sliding path of the plug probe mechanism corresponds to the sliding path of the base.

7. A motor housing detection mechanism according to claim 1, Features: It also includes a height measuring mechanism, which is installed on the frame and is used to measure the height of the motor housing.

8. The motor housing detection mechanism according to claim 2, It is characterized in that The following steps are involved: 1) Use the detection mechanism to detect the first manufactured motor housing and measure the inner diameter of a certain point of the upper stop of the motor housing; 2) After rotating the motor housing 90 degrees, use the detection mechanism to measure the other inner diameter of the upper stop of the motor housing, and take the average value of the two inner diameters. When the average value differs from the standard value within 0.06mm, the motor housing is produced. The motor housing after production is tested by the detection mechanism in turn; 3) When the average value differs from the standard value by more than 0.06mm, readjust the production mechanism of the motor housing and then test the motor housing until the new average value meets the standard.

9. A method for detecting a motor housing according to claim 8, Features: The specific steps of step 1 are: place the motor housing on the base, start the base to link the motor housing to move under the upper elastic measuring claw mechanism, move the two upper inner diameter probes into the motor housing, move the upper inner diameter probes longitudinally, and measure the inner diameter of the upper stop of the motor housing.

10. A method for detecting a motor housing according to claim 9, Features: The specific steps of step 3 are: the detection mechanism can feed back the detected value to the mechanism for making the motor housing in real time, and the mechanism for making the motor housing adjusts the tool for processing the motor housing in real time.

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