CN211527734U - Air tightness detection device for disc type motor shell - Google Patents

Air tightness detection device for disc type motor shell Download PDF

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Publication number
CN211527734U
CN211527734U CN202020255081.0U CN202020255081U CN211527734U CN 211527734 U CN211527734 U CN 211527734U CN 202020255081 U CN202020255081 U CN 202020255081U CN 211527734 U CN211527734 U CN 211527734U
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China
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positioning base
air
positioning
casing
valve
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CN202020255081.0U
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Chinese (zh)
Inventor
徐鹏
张国强
粟伟
吴琦
徐一卓
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Hangzhou Zhonghao Electric Technology Co ltd
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Hangzhou Zhonghao Electric Technology Co ltd
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Abstract

The utility model discloses a disk type motor casing air tightness detection device, which comprises a workbench, wherein a positioning base for positioning a motor casing is arranged on the workbench, a pressing mechanism is arranged above the positioning base, and an air inlet valve and an air leakage valve which can stretch towards the direction of the positioning base are arranged on the side surface of the positioning base; the air inlet valve and the air leakage valve are communicated with an air tightness detector through a pipeline, and the workbench is provided with a code scanner and an operation panel. The utility model has the advantages of convenient detection, high detection efficiency, accurate detection result, and is especially suitable for the detection of the shell of the disc motor; the motor casing can be effectively prevented from being collided under the traditional immersion mode detection, and the safety is improved; can automatic control, be equipped with alarm device and a plurality of sensor, the security is high.

Description

Air tightness detection device for disc type motor shell
Technical Field
The utility model relates to a disc motor technical field especially relates to a disc motor casing gas tightness detection device.
Background
With the continuous development of electric automobile technology in China, and due to the advantages of large power density, short axial size and the like of a disc type motor, the disc type motor is more and more popularized in application to electric automobiles. The motor shell is one of indispensable parts of the motor, and the air tightness of the motor shell is one of important quality indexes of the motor shell. The air gap of the disc motor is planar, and the air gap magnetic field is axially distributed, so that the disc motor is also called an axial flux motor. For a radial motor, a disc motor generally adopts a scheme of cooling two sides of a machine shell and has a cooling water channel structure on the upper side and the lower side.
In the prior art, air tightness detection is performed by a method of placing a motor shell in water, for example, in Chinese patent documents, the application number is CN2017113032254, and the publication date is invention patent named as 'new energy automobile motor shell air tightness testing device' published in 2018, 3, month and 30, the application discloses a new energy automobile motor shell air tightness testing device which comprises a fixed block, a water tank is arranged at the top of the fixed block, a motor shell body is arranged at the bottom of the inner wall of the water tank, supporting rods are fixedly connected to two sides of the top of the fixed block, and a box body is fixedly connected to the tops of the supporting rods. The mode has the defects of low working efficiency, low detection result precision, high labor intensity of operators and easy damage of the motor shell; and because disk motor generally is two stator single rotor structures among the prior art, has the cooling water channel structure of two sides about having, and this application can not realize disk motor's gas tightness and detects, can not accomplish the simultaneous leakproofness of two water channels of disk motor even more, also lacks the device that detects two stator single rotor structure disk motor casing gas tightness simultaneously among the prior art.
In order to solve the defects, it is necessary to design a detection device capable of automatically detecting the air tightness of the disc type motor shell to improve the operation convenience.
Disclosure of Invention
Based on not enough among the above-mentioned prior art, the utility model provides a disk motor casing gas tightness detection device detects conveniently, and detection efficiency is high, can accomplish the gas tightness test of two sides of disk motor casing simultaneously, and the casing that especially is fit for disk motor detects.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A device for detecting the air tightness of a disc type motor shell comprises a positioning base for positioning the motor shell, wherein a pressing mechanism is arranged above the positioning base, and an air inlet valve and an air leakage valve which can stretch towards the direction of the positioning base are arranged on the side surface of the positioning base; the air inlet valve and the air leakage valve are communicated with an air tightness detector through a pipeline.
The motor shell to be detected is placed on the positioning base to be positioned in a manual or mechanical arm automatic mode, the motor shell is pressed and fixed through the pressing mechanism, the air inlet valve and the air leakage valve extend out corresponding to a motor water nozzle of the motor shell to complete plugging of the motor shell, the air tightness detector works to inflate the interior of the motor shell, air tightness detection can be carried out on the motor shell after air in the motor shell is balanced, detection is convenient, detection efficiency is high, detection results are accurate, and the motor shell detection device is particularly suitable for shell detection of a disc motor; can effectively prevent to collide with of motor housing under the mode detection of traditional soaking, improve the security.
Preferably, there are two sets of air inlet valves and air leakage valves. The air tightness of the upper water channel and the lower water channel of the disc motor can be tested simultaneously, and the detection efficiency is improved.
Preferably, the side of the positioning base is provided with a handle ring, and the upper side of the positioning base is provided with a positioning pin corresponding to the positioning pin hole of the motor shell. The positioning of the motor shell is facilitated through the positioning pin, and the state of the motor shell on the positioning base can be detected in real time through the recognition inductor, so that the operation of the air inlet valve, the air leakage valve and the air tightness detector can be automatically controlled through a program conveniently; except the locating pin, this application can also accomplish the casing location through the constant head tank isotructure of positioning bolt, cooperation motor casing side, and the locating pin has fixed convenience, goes up the convenient benefit of unloading.
Preferably, the positioning base is arranged on a workbench, the pressing mechanism comprises a stand column connected to the workbench, the stand column is located on the side face of the positioning base, a mounting plate parallel to the positioning base is arranged on the stand column, a pressing cylinder is arranged on the mounting plate, and a pressing block is arranged at the end part of a piston rod of the pressing cylinder. The motor shell is compressed by the compression block through the compression cylinder, and the motor shell is fixed very conveniently by matching with the positioning base.
Preferably, two parallel upright columns are arranged, and the axes of the upright columns are perpendicular to the upper plane of the workbench. The installation plate and the pressing cylinder are convenient to arrange.
Preferably, the workbench is provided with a telescopic cylinder capable of moving parallel to the upper plane of the workbench, the end part of a piston rod of the telescopic cylinder is provided with an installation block, and the air inlet valve and the air leakage valve are arranged on the installation block and parallel to the axis of the telescopic cylinder. Through telescopic cylinder and installation piece, can accomplish the simultaneous movement of admission valve and air leak valve, conveniently accomplish the cooperation shutoff that admission valve and air leak valve correspond motor casing water injection well choke simultaneously, make things convenient for admission valve and air leak valve's operation.
Preferably, the lower side surface of the mounting block is provided with a sliding groove, and the workbench is provided with a sliding rail matched with the sliding groove. Through the cooperation of slide rail and spout, realize the directional slip of installation piece, the easy to assemble piece targets in place.
The utility model discloses an useful part lies in: the detection is convenient, the detection efficiency is high, and the detection result is accurate; the motor casing can be effectively prevented from being collided under the traditional immersion mode detection, and the safety is improved; the air tightness test of the water channels on the two sides of the shell of the disc motor can be completed simultaneously, and the air tightness test device is particularly suitable for detecting the shell of the disc motor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the air tightness detector 7 of the air leakage valve 6 of the air inlet valve 5 of the telescopic cylinder 4 mounting block 41 of the telescopic cylinder 33 of the positioning block 33 of the positioning base 2 of the workbench 1.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example (b):
in fig. 1, a disk motor casing gas tightness detection device, including fixed being equipped with the location base 2 that is used for fixing a position the motor casing, location base 2 sets up on a workstation 1, and location base 2 can be through the bolt fastening with workstation 1, realizes dismantling the connection, conveniently changes location base 2 in order to adapt to not unidimensional motor casing. The top of location base 2 is equipped with hold-down mechanism, and hold-down mechanism is including connecting stand 3 on workstation 1, and stand 3 is equipped with two of parallel, and 3 planes settings on the perpendicular to workstation 1 of axis of stand. The stand 3 is located the side of location base 2, is equipped with parallel location base 2's mounting panel 31 on the stand 3, is equipped with on the mounting panel 31 and compresses tightly cylinder 32, and the piston rod tip that compresses tightly cylinder 32 is equipped with compact heap 33. In addition, the pressing mechanism can also adopt power mechanisms such as an oil cylinder and a motor as the power of the pressing mechanism. An air inlet valve 5 and an air leakage valve 6 which can extend towards the direction of the positioning base 2 are arranged on the side surface of the positioning base 2; the air inlet valve 5 and the air leakage valve 6 are provided with two groups, the workbench 1 is provided with a telescopic cylinder 4 which can move parallel to the upper plane of the workbench 1, the end part of a piston rod of the telescopic cylinder 4 is provided with an installation block 41, and the air inlet valve 5 and the air leakage valve 6 are arranged on the installation block 41 and parallel to the axis of the telescopic cylinder 4. The two groups of air inlet valves 5 and air leakage valves 6 are symmetrically arranged on the end surface of the mounting block 41. The downside of installation piece 41 is equipped with the spout, is equipped with the slide rail 42 of cooperation spout on the workstation 1, and telescopic cylinder 4 is equipped with the inductor that targets in place. Admission valve 5 and air leak valve 6 pass through an airtight detector 7 of pipeline intercommunication, and the side of location base 2 is equipped with handle ring 21, through convenient mobile location base 2 of handle ring 21, is favorable to accomplishing the change of location base 2. The upper side surface of the positioning base 2 is provided with a positioning pin corresponding to a positioning pin hole of the motor shell; the motor housing can be positioned in the radial direction by the positioning pin. In addition, the upside of location base 2 still is equipped with constant head tank 23, can further assist spacing motor casing through the constant head tank, makes things convenient for motor casing fixed and last unloading.
When the positioning device is used, a motor shell is automatically placed in the correct position of the positioning base 2 by an industrial robot or manually by a special person, a positioning pin 22 hole of the disc type motor shell is aligned with a positioning pin 22 on the positioning base 2, and a motor water nozzle is opposite to the directions of the air inlet valve 5 and the air leakage valve 6; the pressing cylinder 32 pushes the pressing block 33 to complete pressing of the workpiece; after the pressing cylinder 32 is pressed in place, the telescopic cylinder 4 pushes the air inlet valve 5 and the air leakage valve 6 to press the water nozzle of the motor, and the motor shell is positioned; after the mounting block 41 reaches the correct position, the air tightness detector 7 starts to operate, the workpiece is inflated according to preset pressure, air tightness of the shell is detected within a specified time after air inside the workpiece is balanced, finally, the detected result is compared with the preset leakage rate, and the qualified rate of the workpiece is judged; after whole detection is accomplished, withdraw telescopic cylinder 4, compress tightly cylinder 32 according to the order, at last, take out the work piece or take out by the manual work by industrial robot is automatic, accomplish the test, directly place next station on, carry out follow-up operation.
The detection method is convenient to detect, high in detection efficiency and accurate in detection result, and is particularly suitable for detecting the shell of the disc motor; the motor casing can be effectively prevented from being collided under the traditional immersion mode detection, and the safety is improved; can realize automated control, be equipped with alarm device and a plurality of sensor, the security is high.

Claims (7)

1. A disk type motor casing air tightness detection device is characterized by comprising a positioning base for positioning a motor casing, wherein a pressing mechanism is arranged above the positioning base, and an air inlet valve and an air leakage valve which can stretch towards the direction of the positioning base are arranged on the side surface of the positioning base; the air inlet valve and the air leakage valve are communicated with an air tightness detector through a pipeline.
2. The device for detecting the airtightness of the casing of a disc motor according to claim 1, wherein there are two sets of the air intake valve and the air leakage valve.
3. The device for detecting the airtightness of the disk type motor casing according to claim 1, wherein a handle ring is provided on a side surface of the positioning base, and a positioning pin corresponding to a positioning pin hole of the motor casing is provided on an upper side surface of the positioning base.
4. The device for detecting the airtightness of the casing of the disc motor according to claim 1, wherein the positioning base is provided on a table, the pressing mechanism includes a column connected to the table, the column is provided on a side surface of the positioning base, a mounting plate is provided on the column in parallel with the positioning base, a pressing cylinder is provided on the mounting plate, and a pressing block is provided at an end portion of a piston rod of the pressing cylinder.
5. The device for detecting the airtightness of the casing of the disc motor according to claim 4, wherein the two parallel columns are provided, and the axes of the two parallel columns are perpendicular to the upper plane of the worktable.
6. The device for detecting the airtightness of the casing of the disc type motor according to claim 4 or 5, wherein the table is provided with a telescopic cylinder capable of moving parallel to the upper plane of the table, the end portion of the piston rod of the telescopic cylinder is provided with a mounting block, and the air inlet valve and the air leakage valve are arranged on the mounting block in parallel to the axis of the telescopic cylinder.
7. The device as claimed in claim 6, wherein the mounting block has a sliding groove on its lower side, and the worktable has a sliding rail for engaging the sliding groove.
CN202020255081.0U 2020-03-04 2020-03-04 Air tightness detection device for disc type motor shell Active CN211527734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020255081.0U CN211527734U (en) 2020-03-04 2020-03-04 Air tightness detection device for disc type motor shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020255081.0U CN211527734U (en) 2020-03-04 2020-03-04 Air tightness detection device for disc type motor shell

Publications (1)

Publication Number Publication Date
CN211527734U true CN211527734U (en) 2020-09-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114441113A (en) * 2022-01-20 2022-05-06 山东省农业机械科学研究院 Air-suction seed sowing device air tightness detection system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114441113A (en) * 2022-01-20 2022-05-06 山东省农业机械科学研究院 Air-suction seed sowing device air tightness detection system and method

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