CN112605652A

CN112605652A - Operation method of semi-automatic assembly detection line of thermal management valve

Info

Publication number: CN112605652A
Application number: CN202011430993.8A
Authority: CN
Inventors: 徐正方; 周新城; 刘剑兵; 魏鹏; 方勇; 方鑫杰; 莫文林; 董旭伟; 熊刚; 邬驰昊; 赵登
Original assignee: Hangzhou Xurui Machinery Co ltd
Current assignee: Hangzhou Taishang Intelligent Equipment Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-04-06
Anticipated expiration: 2040-12-07
Also published as: CN112605652B

Abstract

The invention relates to an operation method, in particular to an operation method of a semi-automatic assembly detection line of a thermal management valve. The method comprises the following steps: the method comprises the steps of motor detection marking, worm installing operation → motor and PCBA welding operation → motor installing operation in a lower shell, PCBA pin welding operation → X-shaped ring and output gear installing operation → 3 gear and upper shell installing operation → valve body assembling operation → air tightness detection operation of a control box and a valve body → plane sealing gasket and limiting sleeve assembling and detecting operation → final assembly operation. Further promote machining efficiency, further promote the assembly quality.

Description

Operation method of semi-automatic assembly detection line of thermal management valve

Technical Field

The invention relates to an operation method, in particular to an operation method of a semi-automatic assembly detection line of a thermal management valve.

Background

An electric vehicle has a thermal management system that relies on the properties of the fluid to direct the fluid with heat transfer capability to a heater or cooler. The heat management system is provided with a liquid control valve called a heat management valve (thermal management valve), which is one of core parts of the whole heat management system, can selectively control the flow direction of refrigerant liquid in a pipeline of the heat management system, and finally realizes the control and management of heat through a condenser or a heater and the like.

The existing scheme is as follows: the technological processes of assembly of parts, oiling of moving parts, press fitting of parts, screwing of screws, quality inspection of parts before assembly, quality inspection of parts in the assembly process and the like are completely completed manually or by means of simple tools.

The main drawback is the low efficiency, which results in very high labor costs for mass (millions of orders of magnitude) manufacturing. The number of parts forming the whole heat management valve is large, the structure of the parts is also complex, the difficulty of manual assembly is high, and the product qualification rate is low due to the fact that operation errors occur in a plurality of manual assemblies. The parts forming the whole thermal management valve need to be subjected to quality inspection before assembly, the quality inspection in the middle process also needs to be carried out in the assembly and manufacturing process, and the quality inspection result also needs to be recorded. The current situation is that the content has the problems of missing, incomplete or complicated process under the current scheme, and the manufacturing efficiency and quality are seriously influenced.

Disclosure of Invention

The invention mainly solves the defects in the prior art, and provides the operation method of the semi-automatic assembly detection line for the thermal management valve, which has high automation degree, realizes the semi-automatic manufacture of the part and achieves the effect of manufacturing a qualified product every 30 seconds.

The technical problem of the invention is mainly solved by the following technical scheme:

an operation method of a semi-automatic assembly detection line of a thermal management valve is carried out according to the following steps:

the motor detection marking and worm installing operation comprises the following steps:

manually taking the motor out of the transfer box, placing the motor in an equipment jig, pressing an equipment starting button → moving the feeding jig to a motor testing position, ejecting the probe to electrify the motor, testing current and rotating speed → moving the feeding jig to character code recognition, taking a picture by a CCD, reading character content on the motor → moving the feeding jig to marking, marking a two-dimensional code, dedusting → moving the feeding jig to a two-dimensional code recognition station, reading two-dimensional code information → moving the jig to a motor transplanting station, transplanting the motor to a discharging jig motor transplanting station → moving the discharging jig to a worm placing station, feeding a worm tray, detecting a magnetic ring, placing a worm with qualified detection in an XYZ module → moving the discharging jig to a press-mounting station, positioning a guide mechanism, press-mounting the worm → moving the discharging jig to a detection station, detecting the installation height of the worm by a camera and the existence or nonexistence of the magnetic, automatically discharging the materials into an NG box; if the OK is confirmed, the discharging jig retreats from the discharging station and performs manual discharging;

the testing device mainly comprises a motor feeding jig, a motor discharging jig, a worm tray loading frame and a motor transferring module, wherein the motor feeding jig drives a motor to move to a motor testing station, a probe in the motor testing station conducts a conduction test on the motor, the motor transferring module transfers the motor from the motor feeding jig to the motor discharging jig, a worm in the worm tray loading frame is placed in the motor discharging jig through an XYZ module, the motor and the worm are pressed and mounted through a servo press after being guided and positioned, and the motor discharging jig discharges through a discharging guide rail;

(II) welding the motor and the PCBA:

firstly, a machine standby state is simultaneously pressed down two starting buttons;

moving the jig to an opposite photoelectric detection station, if a motor, a wire and a PCBA board are detected to be neglected or not installed in place, lighting a red indicator lamp and buzzing, withdrawing the jig, and repeating the actions; otherwise, the next step;

thirdly, scanning the code by the motor, and directly blanking the NG box if the code is scanned NG;

moving the jig to a camera detection station, photographing for two times to detect the height of the thread end and the color of the thread, and directly blanking the NG box if NG is detected;

moving the jig to a welding station for welding, blowing air by an ion fan, and smoking by a smoking fan; after welding, the electric iron enters the welding slag box, and the air pipe blows off the redundant welding slag.

Sixthly, moving the jig to a CCD camera detection station, and detecting whether welding spots exist or not by taking pictures of the upper camera and the side camera for three times; if NG, directly and automatically blanking an NG box;

if the product successfully completes all actions and detection, the green indicator light is turned on, the jig is withdrawn, manual blanking is performed, and the machine is ready;

the method mainly comprises the steps that assembled products in a motor detection system are moved to a motor welding correlation photoelectric detection station through a motor welding jig in a moving and shifting mode, the motor welding correlation photoelectric detection station detects the products, the detected products are moved to an automatic welding machine through the motor welding jig in a moving and shifting mode, the automatic welding machine performs welding operation on the products, and the temperature of the automatic welding machine is adjusted through a welding machine temperature controller;

(III) the motor is arranged in the lower shell and the PCBA pin is welded:

the machine is in a standby state, two starting buttons are pressed simultaneously → the jig moves, and the presence or absence of the lower shell and the presence or absence of the motor and the PCBA are detected by the correlation photoelectricity for three times; if the NG jig exits from the housing again → the jig moves to the detection station, the motor scans the codes; if NG automatically blanking NG belt → CCD detects the preassembly position of the motor and PCBA board; if NG, automatically feeding the workpiece, recovering the belt → moving the jig to a 3D camera scanning position to detect the preassembly height → moving the jig to a press-fitting station, press-fitting the servo press → moving the jig to a detection station, and detecting the installation height of the motor and the PCBA; if NG automatically blanking the NG box → the jig is moved to the welding station, welding is carried out → the jig is moved to the detection station after welding is finished, and whether the welding spot exists or not is detected; if NG automatically feeds materials to an NG box → the jig moves to a welding station, the lower shell is marked by laser two-dimensional codes and is bound by the codes in a scanning mode; if the code scanning NG automatically discharges the NG box; if OK, the jig is withdrawn, and manual blanking is carried out;

the method mainly comprises the steps that products welded and assembled by a motor are moved to a welding correlation photoelectric detection station of the lower motor shell through a welding feeding jig of the lower motor shell for product detection, qualified products are detected and moved to a welding servo motor of the lower motor shell for press-fitting operation through the welding feeding jig of the lower motor shell, the press-fitted products are moved to the lower part of an automatic welding machine of the lower motor shell for welding operation through the welding feeding jig of the lower motor shell, and the welded products are subjected to blanking operation through the welding blanking jig of the lower motor shell;

(IV) installing the X-shaped ring and the output gear:

during the manual work was packed casing subassembly into the tool down, press equipment start button → the tool removes to X type circle equipment station, carry out down the casing and sweep sign indicating number → X type circle vibration dish automatic feeding, positive and negative CCD detects, and assemble to casing subassembly → the tool removes to the detection station down, CCD detects X type circle equipment condition → the tool removes to the fat liquoring station, fat liquoring and fat liquoring CCD detect, with X type circle equipment detect the sharing → the tool removes to output gear equipment station → output gear tray automatic feeding, positive and negative CCD detects, and assemble casing subassembly down, and CCD detects output gear assembly height → if NG, automatic unloading is to NG on the belt line. If OK, the jig is withdrawn, and manual blanking is carried out;

the automatic assembling device mainly comprises an output gear tray feeding frame, an X-shaped ring turntable carrying assembly, an output gear feeding module, an X-shaped ring assembling station, a lower shell assembly and a lower shell assembly transverse moving module, wherein the lower shell assembly of an assembled product is displaced along the lower shell assembly transverse moving module through a jig;

and (V) installing 3 gears and an upper shell:

manually loading the lower shell assembly and the upper shell into a turntable jig, pressing an equipment starting button, detecting whether the material is loaded or not and floating by a sensor, and simultaneously scanning the code of the lower shell and detecting whether the black sponge of the cover is loaded or not; detecting and assembling a gear I → automatically feeding a gear I tray, detecting a positive CCD and a negative CCD, and assembling the gear I tray to the lower shell assembly; gear II detection assembly station → gear II tray automatic feeding, positive and negative CCD detection, and assembly to the lower housing assembly; gear III detection and assembly station → gear III tray automatic feeding, positive and negative CCD detection, and assembly to the lower housing assembly; the gear height detection station → the CCD detects 3 gears assembled → oil is applied to the gears at the same time, and the CCD detects the oil application condition; upper housing preassembly station → upper housing preassembly lower housing assembly; an upper shell servo press mounting station → a servo press mounting an upper shell; NG blanking station of the upper gear shell → detecting the assembly height of the upper gear shell by a sensor; gear upper shell manual feeding station → if NG, automatically discharging to an NG box; if the work station is OK, the jig is moved to the next work station, and manual blanking is carried out;

the automatic gear assembling device mainly comprises a turntable assembly component, a gear I tray feeding component, a gear II tray feeding component and a gear III tray feeding component, wherein the turntable assembly component comprises a turntable, the turntable is sequentially provided with a gear I detection assembling station, a gear II detection assembling station, a gear III detection assembling station, a gear height detection station, a gear oiling detection station, an upper shell preassembly station and an upper shell servo press mounting station, the gear I detection assembling station detects and assembles the gear I fed by the gear I tray feeding component, the gear II detection assembling station detects and assembles the gear I fed by the gear II tray feeding component, the gear III detection assembling station detects and assembles the gear I fed by the gear III tray feeding component, and the gear height detection station, the gear oiling detection station and assembly station and the gear III tray feeding component are sequentially carried out on a product which is detected and assembled, The operation of an upper shell preassembly station and an upper shell servo press mounting station;

(VI) valve body assembling operation:

manually installing the sealing ring into the valve body, placing the sealing ring and the valve core upper cover into a jig, pressing an equipment starting button → the sealing ring prepressing cylinder is ejected forwards, and the sealing ring prepressing cylinder is pressed downwards; delivering the jig to a CCD visual detection turntable station through a turntable → detecting whether a sealing ring is installed in place by a CCD camera → automatically laser coding → coding the jig is delivered to a code reader code scanning turntable station through the turntable → code scanning gun code scanning → the code scanning jig is delivered to an oiling NG discharging turntable station through the turntable → a transplanting mechanism picks up the valve core to a gluing mechanism → automatically oil the valve core by the equipment and delivers the valve core to the turntable station through a delivery mechanism → detecting the valve core is delivered to the turntable station through the turntable → delivering the valve core to a prepressing turntable station through the turntable → the valve core delivery mechanism delivers the valve core to a preassembling position → the positioning mechanism delivers the valve core to the valve core by the positioning mechanism → the valve core prepressing mechanism and the positioning mechanism release the valve core to complete valve core prepressing → delivering the jig to the servo press to the valve core turntable to the turntable press to the turntable station of the valve core → the top of the top air cylinder to jack the jig upwards → the servo press the valve core → The method comprises the steps that a turntable enters an assembly valve core turntable station → a vibration disc X-shaped ring is fed to the turntable → the turntable rotates to an X-shaped ring detection mechanism to perform positive and negative detection → the turntable rotates to a material taking mechanism → the X-shaped ring is picked up and assembled by an X-shaped ring picking and assembling mechanism to move to an assembling position → the X-shaped ring is assembled by the X-shaped ring assembling mechanism → the assembling mechanism moves out, a camera detection mechanism moves in to detect the assembly of the X-shaped ring → a detection completion jig is moved to the X-shaped ring oiling station through the turntable and detects the turntable station → the oiling mechanism moves in to perform automatic oiling → oiling, the oiling mechanism moves back, the camera detects whether the oiling is completed → the camera detection completion jig enters a valve cover preassembling turntable station through the turntable → the valve cover preassembling mechanism to preassemble the valve cover to the valve body → the jig enters a servo press turntable press valve cover pressing station → the upper top, The positioning cylinder retracts → the upper ejection cylinder retracts, the jig descends → the jig enters a detection valve cover turntable station through a turntable → the upper GT detects descending, the lower GT detects ascending → detects whether the product is qualified or not → the GT detects retracting → the jig enters an NG product automatic blanking turntable station through a turntable → if NG occurs midway, the NG product is automatically moved to an NG box; if the OK jig is transferred to a station of the manual feeding turntable, manual feeding is carried out; after the blanking is finished, manually feeding;

the device mainly comprises a valve body turntable, wherein a valve body is sequentially subjected to manual feeding turntable station, a CCD visual detection turntable station, a code reader code scanning turntable station, an oiling NG discharging turntable station, a valve core prepressing loading turntable station, a servo press valve core pressing-in turntable station, an assembling valve core turntable station, an X-shaped ring oiling and detection turntable station, a valve cover preassembling turntable station, a servo press valve cover pressing-in turntable station, a detection valve cover turntable station and an NG product automatic discharging turntable station;

and (seventhly), air tightness detection operation of the control box and the valve body:

manually putting the valve body into the jig, pressing an equipment starting button → enabling the jig to move transversely to enter a code scanning position → scanning a code by a code scanner → scanning the code successfully → enabling the jig to move transversely to enter an air tightness detection position → pressing down the sealing assembly, and rotating the front top of the assembly cylinder. → the motor of the rotating component rotates → the equipment automatically carries out the sealing test → the test is finished and the rotating component of the sealing component returns → the jig moves out of the touch screen to prompt the user to take the product away;

the air tightness detection jig mainly comprises a control box air tightness detection jig, wherein a product assembled with a valve body is subjected to air tightness detection operation through the control box air tightness detection jig;

(eighth), assembling and detecting the plane sealing gasket and the limiting sleeve:

manually loading a planar sealing gasket into a valve body assembly, placing the valve body assembly into a jig on the left side of equipment, pressing an equipment starting button → transversely moving the jig into a code scanning station and a spacing sleeve loading station → scanning the code scanning → successfully scanning the code → pre-installing a spacing sleeve → transversely moving the jig into a spacing sleeve pressing position → respectively pressing and installing 4 spacing sleeves by a servo press → transversely moving the jig to a carrying position → carrying the valve body to the right jig by a carrying module → transversely moving the jig to a sealing ring pressing position → pressing and installing the planar sealing gasket by the servo press → transversely moving the jig to a camera detection position → detecting whether the planar sealing gasket is installed and the spacing sleeve is installed qualified by a CCD camera → transversely moving the jig to a blanking position, and manually taking materials;

the method mainly comprises the steps that a valve body assembly with a planar sealing gasket is placed on a detection jig, a limiting sleeve is pressed into the valve body assembly through a limiting sleeve taking assembly, and a sealing ring is pressed into the valve body assembly after the limiting sleeve is pressed;

(nine) final assembly operation:

manually assembling the control box assembly and the valve body assembly, placing the control box assembly and the valve body assembly in an equipment jig, pressing an equipment starting button → confirming camera code scanning → moving the jig to a locking area → confirming camera code scanning → pressing the pressing mechanism pressing → automatically screwing the screw by the automatic screw-screwing mechanism → detecting whether the installation is in place by the height detecting mechanism → pushing the artificial blanking to the blanking position when detecting OK, and clamping the NG to the NG belt line by the clamping jaw.

Preferably, the process in step (one) requires: the worm is pressed in place without neglected installation; the height of the worm after press mounting from the end face of the motor is 28.7 +/-0.1 mm; detecting the pull-out force of the press-fitted worm, wherein the pull-out force is required to be more than or equal to 200N; pressing the worm to be too shallow or too deep, and NG the product; 100% detection of the sensor; the magnetic ring is neglected to be installed, the camera detects 100%, the workbench has a starting point detection function, and a program allows the next operation after the point detection is finished;

the process requirement in the step (II) is as follows: PCBA neglected loading, and 100% detection of the reflection optical fiber; neglected loading of the motor, and 100% detection of the correlation photoelectric; the PCBA is not installed in place (fluctuated), and the correlation photoelectric detection is carried out by 100 percent; the motor fluctuates; detecting 100% of incident light; the height of the thread end is correct, the color is correct, and the camera detects 100%; detecting whether the welding spot exists or not by a camera by 100%; processing the welding slag in a welding slag box; smoking the welding fume; removing static electricity of the product;

the process requirement in the step (III) is as follows: the motor and the PCBA are installed in place, and the distance between the shell positioning column and the PCBA plane is 0.4mm-0.2 mm; the motor is installed in place, and the height difference between the top end of the motor and the plane of the shell is 0mm +0.2 mm; the height difference between the top end of the motor and the plane of the shell is 0.3mm, and the product is NG; whether the PCBA board welding spot exists or not; binding the motor and the lower shell one to one, and tracing information; processing the welding slag in a welding slag box; laser marking and smoking welding smoke; removing static electricity of the product;

the process requirement in the step (four) is as follows: the X-shaped ring is installed in place and is not damaged; neglected installation of the X-shaped ring, and 100% detection of a camera; the X-shaped ring is not installed in place, and the camera detects 100%; the height difference between the X-shaped ring and the positioning groove of the shell is 0.8mm, the height difference between the X-shaped ring and the positioning groove of the shell is 1.4+0.5mm after the X-shaped ring is installed in place; the X-ring is broken. 0.2mm by 0.2mm of the damaged area can be identified, and the camera detects 100%; the image detection prevents the grease of the X-shaped ring from being leaked and coated, and the camera detects 100 percent; neglected mounting of the gear, and 100% detection of the camera; the distance between the top end of the gear and the plane of the welding rib of the shell is 1.8mm, the gear is not installed in place, the camera recognizes 100%, and the distance between the top end of the gear and the plane of the welding rib of the shell is 1.25mm plus 0.5 mm; the gear is not installed in place, and the camera recognizes 100%; the gear is damaged, and the camera recognizes 100%; the gear is wrongly installed, and the camera recognizes 100%;

the process requirement in the step (V) is as follows: neglected mounting of the gears I, II and III, and 100% detection by a camera; the distance between the large plane of the gear I and the section of the metal shaft of the shell is 4.6mm, the gear is not installed in place and is identified by a camera by 100%, and the distance between the large plane of the gear I and the section of the metal shaft of the shell is 5.2 mm-0.5 mm; the gear I is damaged, and the camera recognizes 100%; the distance between the large plane of the gear II and the section of the metal shaft of the shell is 3.2mm, the gear 2 is not installed in place, the camera recognizes 100%, the gear II is damaged, and the camera recognizes 100%; the distance between the large plane of the gear III and the section of the metal shaft of the shell is 3.9mm, the gear is not installed in place and is identified by a camera by 100 percent, and the distance between the large plane of the gear III and the section of the metal shaft of the shell is 4.5 mm-0.5 mm; the gear is damaged, and the camera recognizes 100%; oil leakage of the gear is carried out, and 100% detection is carried out by a camera; the height of the upper shell and the lower shell after being buckled is 17.5+0.5 mm; detecting by a 100% sensor; the height of the upper shell is 18.1mm after the upper shell and the lower shell are buckled, and the upper shell and the lower shell are not installed in place; detecting by a 100% sensor;

the process requirement in the step (six): the equipment confirms that the two-dimensional code is not printed in a missing mode by 100%, the printing is clear, and the information of the two-dimensional code is correct; the sealing gasket is installed in place, and no neglected installation exists; relative valve body constant head tank after the sealed pad assembly: 0+1 mm; after the sealing gasket is installed, the difference between the sealing gasket and the plane of the positioning groove of the valve body is 1.1mm, the sealing gasket is not installed in place (floats high), and the camera recognizes 100%; the sealing gasket is neglected to be installed, and the camera recognizes 100%; the sealing gasket is pressed and dislocated, and the camera recognizes 100%; the images are identified by 100 percent to ensure that no coating leakage exists during oil coating; the valve core is installed in place, and the valve core is assembled and then is higher than the valve body: the installation angle of the valve core with 9.5 +/-0.2 mm is 0 degree; the valve core is neglected to be installed, and the error camera at the installation angle of the valve core is identified by 100 percent; the height difference between the X-shaped ring and the green plane of the valve core is 5.3mm after the X-shaped ring is installed in place, and the height difference between the X-shaped ring and the green plane of the valve core is 5.3 +/-0.3 mm after the X-shaped ring is installed in place; the X-shaped ring is neglected to be installed, the height difference between the installed X-shaped ring and the green plane of the valve core is 4.9mm, the product floats high and is not installed in place, the X-shaped ring is damaged, and the camera detects 100%; oiling and neglected loading of the X-shaped ring, and identifying by a camera by 100%; the equipment ensures the press mounting height and the press-in force of the shell through servo press mounting, and the press mounting force of the shell is as follows: after press mounting, the height of the valve body is 68 plus 0.5mm after 200N +/-50N; the height of the end face of the valve cover from the bottom of the valve body is 86.4+0.5mm after the valve cover is fastened; 100% detection of the sensor; after the valve cover is buckled, the height of the end face of the valve cover from the bottom of the valve body is 87mm, and the product is NG; 100% detection of the sensor;

the process requirement in the step (seven) is as follows: testing 100% leakage of the product; inflating 10S under the pressure of 200Kpa, maintaining the pressure for 5S, detecting 10S, and exhausting 3S; before the equipment is tested, the two-dimension code of the product needs to be scanned, and the product can not be normally tested without the two-dimension code;

the process requirement in the step (eight): the limiting sleeve is pressed and installed in place without leakage, and the tolerance between the limiting sleeve and the plane of the valve body is required to be 0+0.5 mm; after press mounting, the height difference between the limiting sleeve and the plane of the valve body is 0.6mm, and the height of the product is NG, and the camera detects the height after press mounting by 100%; neglected installation of a limiting sleeve, and 100% detection of a camera; the planar sealing gasket is installed in place, and the height difference between the planar sealing gasket and the valve body is 1.6mm after installation; no neglected loading; the sealing gasket is provided with a reinforcing rib and is clamped into the valve body groove to ensure that the sealing gasket does not fall off by virtue of the compression amount of the sealing element; the plane sealing gasket is damaged, and the camera detects 100%; after installation, the height difference between the product and the valve body plane is 1.8mm, the product is NG, and the height of the product after press mounting is detected by a camera by 100%;

the process requirement in the step (nine) is as follows: the equipment detects the screwing torque of the screwdriver by 100% and the height of the screwed screw to judge whether the screw is screwed or not; the screw is screwed up to the position, and the height difference between the screw and the plane of the valve body is 0.4 mm; the screws are not screwed, the height detection is 100%, the height of the screwed screws is detected, and the product is NG; and after the screw is screwed down, the height of the screw after the screw is screwed down is detected, and the height difference between the screw and the plane of the valve body is detected, so that the product is NG.

The advantages are that:

1. the part assembly part basically realizes automatic assembly, and an operator only needs to go up and down materials and press a start button, so that the assembly process is greatly simplified, the operation difficulty of workers is reduced, possible manual operation errors are almost avoided, the manufacturing efficiency is greatly improved, the product percent of pass is improved, and the manufacturing cost of a single part is reduced.

2. After comprehensively and deeply analyzing the component composition of the heat management valve, a series of very reasonable technological processes are designed and invented, the whole automation achieves a coordinated state in space and time rhythm, and finally the effect of manufacturing a qualified product every 30 seconds is achieved. The whole manufacturing process is consistent and efficient, which is not comparable to the manufacturing speed achieved by the prior art solutions.

3. Oiling parts with relative motion, such as gears, O-shaped rings, X-shaped rings and valve cores; all adopt the machine fat liquoring, scribble more evenly than manual oil liquoring, oil mass control is also more stable.

4. And (4) automatically finishing the quality inspection of the parts before assembly and the quality inspection of the parts in the assembly process, and binding the data of the quality inspection with the product. The production data is stored in real time and uploaded regularly, and the tracking of the manufacturing process is completed. This was previously not done because the data size was too large and too much, which was essentially impossible to accomplish manually; the cost is extremely high for completion.

The invention relates primarily to the protection of process steps and not to the protection of structures.

Therefore, the operation method of the semi-automatic assembly detection line for the thermal management valve further improves the machining efficiency and further improves the assembly quality.

Drawings

FIG. 1 is a schematic assembly flow diagram of the present invention.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example 1: as shown in the figure, the operation method of the semi-automatic assembly detection line of the thermal management valve is carried out according to the following steps:

(II) welding the motor and the PCBA:

(III) the motor is arranged in the lower shell and the PCBA pin is welded:

(IV) installing the X-shaped ring and the output gear:

and (V) installing 3 gears and an upper shell:

(VI) valve body assembling operation:

(nine) final assembly operation:

The process requirement in the step (I) is as follows: the worm is pressed in place without neglected installation; the height of the worm after press mounting from the end face of the motor is 28.7 +/-0.1 mm; detecting the pull-out force of the press-fitted worm, wherein the pull-out force is required to be more than or equal to 200N; pressing the worm to be too shallow or too deep, and NG the product; 100% detection of the sensor; the magnetic ring is neglected to be installed, the camera detects 100%, the workbench has a starting point detection function, and a program allows the next operation after the point detection is finished;

Claims

1. An operation method of a semi-automatic assembly detection line of a thermal management valve is characterized by comprising the following steps:

(II) welding the motor and the PCBA:

(III) the motor is arranged in the lower shell and the PCBA pin is welded:

(IV) installing the X-shaped ring and the output gear:

and (V) installing 3 gears and an upper shell:

(VI) valve body assembling operation:

(nine) final assembly operation:

2. The method of claim 1, wherein the method comprises the steps of: