Rear shell airtightness detection system and detection method
阅读说明：本技术 一种后壳气密检测系统及检测方法 (Rear shell airtightness detection system and detection method ) 是由 李立涛 于 2020-05-15 设计创作，主要内容包括：本发明公开了一种后壳气密检测系统及检测方法,涉及后壳气密检测技术领域,包括精密检漏仪、工控机及数据库PC、电控箱PLC、工件仿形座台、检测装置和扫码枪,其中,所述检测装置包括调整滑台、机架和自动柱塞气动单元,所述机架的一侧连接有一级行程气缸,所述一级行程气缸的输出端连接有第一驱动轴,所述第一驱动轴的底部连接有安装板,所述安装板的一侧安装有二级行程气缸。本发明结构简单,设计新颖,在使用时,便于对密闭腔内部进行检测是否存在泄漏现象,并能结合工控机可实现在线数据采集及数据库分析与追踪,得到密闭腔内部是否存在泄漏的数据,且检测方式比较方便,实用性较强,适宜推广使用。(The invention discloses a rear shell airtightness detection system and a detection method, and relates to the technical field of rear shell airtightness detection. The invention has simple structure and novel design, is convenient to detect whether the leakage phenomenon exists in the closed cavity when in use, can realize online data acquisition and database analysis and tracking by combining with an industrial personal computer to obtain the data whether the leakage exists in the closed cavity, has more convenient detection mode and stronger practicability, and is suitable for popularization and use.)
1. A rear shell airtightness detection system is characterized by comprising a precision leak detector, an industrial personal computer, a database PC, an electric cabinet PLC, a workpiece profiling seat, a detection device (1) and a code scanning gun, wherein,
the detection device (1) comprises an adjusting sliding table, a rack (2) and an automatic plunger pneumatic unit (3), wherein one side of the rack (2) is connected with a first-stage stroke cylinder (4), the output end of the first-stage stroke cylinder (4) is connected with a first driving shaft, the bottom of the first driving shaft is connected with a mounting plate, one side of the mounting plate is provided with a second-stage stroke cylinder (5), one side of the second-stage stroke cylinder (5) is connected with a half-width assembled plunger body fixing block (6), an integrated fixed side leakage metal pipe and a chassis (7) are arranged inside the half-width assembled plunger body fixing block (6), the tops of the integrated fixed side leakage metal pipe and the chassis (7) are provided with a connecting pipe orifice, the connecting pipe orifice is connected with a precision leak detector, and the bottoms of the integrated fixed side leakage metal pipe and the chassis (7) are movably provided with an inner expansion polyurethane plunger, the output end of the secondary stroke cylinder (5) is connected with a second driving shaft, the bottom of the second driving shaft is connected with an assembled sliding jacking block (3), the assembled sliding jacking block (3) is arranged above an inner-expanding polyurethane plunger (8), and a sealed cavity exposed pipeline (9) is connected above the workpiece profiling seat platform;
and the primary stroke cylinder (4), the secondary stroke cylinder (5) and the precision leak detector are connected with the industrial personal computer and the database PC through signals.
2. A detection method of a rear shell airtightness detection system is characterized by comprising the following detection steps:
s1, taking materials: after the handheld code scanning gun scans codes, discharging materials on the copying workpiece position, and confirming the position;
s2, after the station is confirmed, the in-place confirmation work of the primary stroke cylinder (4) is controlled, and the inner expansion polyurethane plunger (8) is indirectly driven to be placed into the sealed cavity exposed pipeline (9);
s3, controlling the secondary stroke cylinder (5) to confirm in-place work, and enabling a second driving shaft to drive the assembled sliding jacking block (3) to apply force to the inner expanding polyurethane plunger (8) at the bottom, wherein the inner expanding polyurethane plunger (8) is stressed to be compressed and expanded in the sealed cavity exposed pipeline (9);
s4, controlling the precision leak detector to work, inflating the inside of the exposed pipeline (9) of the sealed cavity by the precision leak detector through the fixed side leakage metal pipe and the chassis (7), establishing a data file for the use data of the precision leak detector through the industrial personal computer and the database PC after the precision leak detector works, and analyzing and tracking the file;
and S5, the industrial personal computer and the database PC display one of the states of NG and OK to obtain a detection result, and blanking.
3. The rear shell airtightness detection system according to claim 1, wherein the integrated fixed side leakage metal pipe and chassis (7) comprises a fixed side leakage metal pipe (701) and a chassis (702), and the assembled sliding jacking block (3) is slidably mounted on an outer wall of the fixed side leakage metal pipe (701).
4. The rear shell airtightness detection system according to claim 3, wherein the cross section of the inner-expansion polyurethane plunger (8) is a circular ring structure, the length of the inner diameter of the inner-expansion polyurethane plunger (8) is the same as the length of the outer diameter of the fixed side leakage metal pipe (701), and the length of the outer diameter of the inner-expansion polyurethane plunger (8) is the same as the length of the outer diameter of the chassis (702).
5. The rear shell airtightness detection system according to claim 1, wherein the adjustment slide table and the frame (2) are integrally made of a steel structure.
6. The method as claimed in claim 2, wherein the material taking in step S1 and the material discharging in step S5 are performed by one of manual operation and mechanical hand.
7. The method for detecting the airtight detection system of the rear shell as claimed in claim 2, wherein the detection working environment is: the adaptive temperature is as follows: 0-40 degrees, relative humidity: 50 to 90 percent.
Technical Field
The invention relates to the technical field of rear shell airtightness detection, in particular to a rear shell airtightness detection system and a rear shell airtightness detection method.
Background
At present in the technique of being applied to new energy automobile scroll compressor circuit board backshell, generally directly let the scroll compressor circuit board put into the inside in the sealed chamber of backshell and install the use, in the use, sealed intracavity portion if leak, exist steam easily, damage the circuit board, present technique can not carry out fine detection to sealed chamber, thereby when direct use, can not obtain whether there is the data of leaking sealed intracavity portion, lead to sealed intracavity to appear leaking possibly, cause awkward phenomenon.
In view of the above, we have devised a rear housing air tightness detection system and method to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a rear shell airtightness detection system and a detection method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rear shell airtightness detection system comprises a precision leak detector, an industrial personal computer, a database PC, an electric cabinet PLC, a workpiece profiling seat, a detection device and a code scanning gun,
the detection device comprises an adjusting sliding table, a rack and an automatic plunger pneumatic unit, wherein one side of the rack is connected with a first-stage stroke cylinder, the output end of the first-stage stroke cylinder is connected with a first driving shaft, the bottom of the first driving shaft is connected with a mounting plate, one side of the mounting plate is provided with a second-stage stroke cylinder, one side of the second-stage stroke cylinder is connected with a half-width assembled plunger body fixing block, an integrated fixed side leakage metal pipe and a chassis are arranged inside the half-width assembled plunger body fixing block, the top parts of the integrated fixed side leakage metal pipe and the chassis are provided with a connecting pipe orifice, the connecting pipe orifice is connected with a precision leak detector, the bottom parts of the integrated fixed side leakage metal pipe and the chassis are movably provided with an inner expansion polyurethane plunger, the output end of the second-stage stroke cylinder is connected with a second driving shaft, and the bottom part, the assembly type sliding jacking block is arranged above the inner-expanding polyurethane plunger, and a sealed cavity exposed pipeline is connected above the workpiece profiling seat platform;
and the primary stroke cylinder, the secondary stroke cylinder and the precision leak detector are connected with the industrial personal computer and the database PC through signals.
A detection method of a rear shell air tightness detection system comprises the following detection steps:
s1, taking materials: after the handheld code scanning gun scans codes, discharging materials on the copying workpiece position, and confirming the position;
s2, after the station is confirmed, the primary stroke cylinder is controlled to confirm in-place, and the inner expanding polyurethane plunger is indirectly driven to be placed into the exposed pipeline of the sealed cavity;
s3, controlling the secondary stroke cylinder to confirm in-place operation, and enabling the second driving shaft to drive the assembled sliding jacking block to apply force to the inner-expanding polyurethane plunger at the bottom, wherein the inner-expanding polyurethane plunger is compressed and expanded inside the exposed pipeline of the sealed cavity under the stress;
s4, controlling the precision leak detector to work, inflating the inside of the exposed pipeline of the sealed cavity by the precision leak detector through the fixed side-leakage metal pipe and the chassis, after the precision leak detector works, establishing a data file for the use data of the precision leak detector through the industrial personal computer and the database PC, and analyzing and tracking the file;
and S5, the industrial personal computer and the database PC display one of the states of NG and OK to obtain a detection result, and blanking.
Preferably, the integrated fixed side leakage metal pipe and the chassis comprise the fixed side leakage metal pipe and the chassis, and the assembled sliding jacking block is slidably mounted on the outer wall of the fixed side leakage metal pipe.
Preferably, the cross section of the inner-
Preferably, the adjusting sliding table and the frame are integrally made of a steel structure.
Preferably, the material taking in the step S1 and the material discharging in the step S5 are performed by one of a manual operation and a manipulator.
Preferably, the detection working environment is: the adaptive temperature is as follows: 0-40 degrees, relative humidity: 50 to 90 percent.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the top of the integrated fixed side leakage metal pipe and the chassis is provided with a connecting pipe orifice, the connecting pipe orifice is connected with a precision leak detector, the bottoms of the integrated fixed side leakage metal pipe and the chassis are movably provided with an inner-expanding polyurethane plunger, and when the precision leak detector inflates the inside of the pipeline with the exposed sealed cavity through the fixed side leakage metal pipe and the chassis, the number displayed by the precision leak detector can be used for judging whether the leakage phenomenon exists in the pipeline with the exposed sealed cavity;
the primary stroke cylinder, the secondary stroke cylinder and the precision leak detector are connected with the industrial personal computer and the database PC through signals, so that online data acquisition and database analysis and tracking can be realized by combining the industrial personal computer during detection, and the use is more flexible and convenient;
the invention has simple structure and novel design, is convenient to detect whether the leakage phenomenon exists in the closed cavity when in use, can realize online data acquisition and database analysis and tracking by combining with an industrial personal computer to obtain the data whether the leakage exists in the closed cavity, has more convenient detection mode and stronger practicability, and is suitable for popularization and use.
Drawings
FIG. 1 is a schematic structural diagram of a rear housing air-tightness detection system and a detection method according to the present invention;
FIG. 2 is a front view of a rear housing air-tightness detection system and a detection method according to the present invention;
FIG. 3 is a side view of a rear housing air-tightness detection system and a detection method according to the present invention.
In the figure: the device comprises a
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a back shell airtightness detection system comprises a precision leak detector, an industrial personal computer, a database PC, an electric cabinet PLC, a workpiece profiling seat platform, a
specifically, the integrated fixed side leakage metal pipe and
wherein, the first-
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