CN114858370A - Wire harness rubber sleeve airtightness checking machine and checking method thereof - Google Patents
Wire harness rubber sleeve airtightness checking machine and checking method thereof Download PDFInfo
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- CN114858370A CN114858370A CN202210474746.0A CN202210474746A CN114858370A CN 114858370 A CN114858370 A CN 114858370A CN 202210474746 A CN202210474746 A CN 202210474746A CN 114858370 A CN114858370 A CN 114858370A
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- wire harness
- rubber sleeve
- airtight
- sealing
- shaft hole
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2846—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for tubes
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a wire harness rubber sleeve airtight inspection machine and an inspection method thereof. It includes mutual electric connection's airtight control unit and airtight mechanical device, sealing mechanism includes the seal pot, and encapsulation at the closing plate and the apron of seal pot both ends opening part, the upper surface of the feed inlet of apron still sets up and is connected with a pencil clamping device who is used for fixed pencil gum cover, the pencil that awaits measuring has the one end of pencil plug and can pass in the feed inlet entering seal pot of apron, and make the shutoff of pencil gum cover in feed inlet department, examine time measuring, admit air earlier in to the seal pot, the airtight effect of pencil gum cover is judged through the pressure value change that detects in the airtight space, and then judge the quality of pencil gum cover. The inspection method of the wire harness rubber sleeve airtight inspection machine provided by the invention utilizes the characteristics of the airtight space, so that the whole test process is more complete in waterproof and moistureproof, and can also realize intellectualization and automation of the test process, thereby better and more comprehensively meeting the test requirements of various novel automobile wire harnesses.
Description
Technical Field
The invention belongs to the technical field of automatic production, and particularly relates to a wire harness rubber sleeve airtight inspection machine and an inspection method thereof.
Background
The automobile wiring harness as one of the important components of the automobile is the key to realize the reliable transmission of the automobile network, according to the internal environment of the vehicle body, some positions of the wiring harness plugs are in a humid environment, liquid components in the air tend to flow to the plugs along the wire bodies of the wiring harnesses, so that the connection parts are short-circuited when encountering water, because the requirement for waterproofing the wire harness of the new energy automobile is more strict, please refer to fig. 3, in the process of producing the wire harness 50, a wire harness rubber sleeve 53 for separating the wire harness plug 52 from the external space is required to be hermetically sleeved on the wire body 51 of the wire harness 50 so as to meet the requirement of air tightness, and due to the factors such as the material, the size, the deformation and the like of the wire harness rubber sleeve, a gap may be formed between the wire body and the outer wall of the wire body, so that the air tightness of the whole wire harness is directly affected, and therefore the air tightness detection between the rubber sleeve and the wire body is particularly important before the wire harness leaves a factory.
Disclosure of Invention
The invention aims to provide a wire harness rubber sleeve airtight inspection machine and an inspection method thereof.
In order to solve the technical problems, the invention is realized by the following technical scheme: an airtight inspection machine for a wire harness rubber sleeve comprises an airtight control unit and an airtight mechanical device which are electrically connected with each other, wherein a sealing mechanism used for clamping a wire harness and enabling the wire harness rubber sleeve to serve as a sealing end is arranged on the airtight mechanical device; and the airtight control unit detects the pressure value in the sealing mechanism in real time to judge the air tightness of the wire harness rubber sleeve.
In a preferred embodiment, the sealing mechanism comprises a sealing can, and a sealing plate and a cover plate are respectively fixed on openings at two ends of the sealing can in a sealing way; a feeding hole communicated with the cover plate is formed in the position, corresponding to the sealing tank, of the cover plate, and a wire harness clamping device corresponding to the feeding hole is fixed on one plate surface, back to the sealing tank, of the cover plate; one end of the wire harness penetrates through the feed port to enter the sealing tank, the wire harness rubber sleeve is plugged at the feed port, and the wire harness clamping device clamps and fixes the wire harness rubber sleeve so that the wire harness to be tested is fixed on the sealing mechanism.
In a preferred embodiment, the wire harness clamping device comprises two oppositely arranged and non-intersecting quick clamps, and a first pressing block and a second pressing block are respectively connected and fixed on the opposite end parts of the two quick clamps; the first pressing block and the second pressing block buckle and press the wire harness rubber sleeve in sequence in a staggered mode so that the wire harness rubber sleeve can fix and block the feed inlet, and therefore a closed space is formed inside the sealing tank.
In a preferred embodiment, the quick clamp comprises a base which can be fixedly connected with the cover plate, a handle and a connecting arm are connected to the base, and the first pressing block or the second pressing block can be respectively connected with the connecting arm in a sliding manner; the handle is rotatably connected with the connecting arm and opens and closes at an angle, and the handle is pressed downwards to enable the connecting arm to rotate downwards at an angle until the first pressing block or the second pressing block abuts against the cover plate.
In a preferred embodiment, a sliding groove extending along the arm length direction of the connecting arm is formed in the connecting arm, a sliding block capable of sliding along the sliding groove is respectively arranged at the edges of two opposite notches of the sliding groove, a threaded rod capable of being in threaded connection with the two sliding blocks simultaneously is further arranged in the sliding groove, and a connector capable of being fixedly connected with the first pressing block or the second pressing block is formed at the end part, facing the cover plate, of the threaded rod.
In a preferred embodiment, the quick clamp further comprises a connecting sheet for communicating the handle and the base, and a first connecting sheet shaft hole and a second connecting sheet shaft hole are formed in the connecting sheet; a first base shaft hole and a second base shaft hole are formed in the base, a first handle shaft hole and a second handle shaft hole are formed in the handle, and a first connecting arm shaft hole and a second connecting arm shaft hole are formed in the connecting arm; the first base shaft hole is connected with the first connecting piece shaft hole in a coaxial rotating mode, the second connecting piece shaft hole is connected with the first handle shaft hole in a coaxial rotating mode, the second handle shaft hole is connected with the second connecting arm shaft hole in a coaxial rotating mode, and the first connecting arm shaft hole is connected with the second base shaft hole in a coaxial rotating mode.
In a preferred embodiment, a plurality of supporting ribs for connecting the cover plate and the sealing plate are uniformly arranged on the outer wall of the sealing pot, threaded holes are formed at the end parts of the supporting ribs, and the cover plate, the sealing pot and the sealing plate can be connected into a whole by using fasteners; and the outer wall of the seal tank is also provided with a mechanical second pressure gauge and a mechanical safety valve.
In a preferred embodiment, the airtight mechanical device comprises a case, and the sealing mechanism is arranged in the case and extends out of the case; the machine case comprises a machine frame, a front panel, a rear panel, a left side plate, a right side plate and a top cover, wherein the front panel, the rear panel, the left side plate, the right side plate and the top cover are respectively arranged at the front, the rear, the left, the right and the upper parts of the machine frame; a mounting opening positioned above the front panel is formed at one end of the frame positioned on the front panel, and the sealing mechanism can be placed into the case from the mounting opening and is fixedly connected with the frame so as to encapsulate the mounting opening; the machine case is also internally provided with an electromagnetic valve which can be connected with the sealing tank and the air-tight control unit, and an air inlet and an air outlet on the electromagnetic valve extend out of the machine case.
In a preferred embodiment, the airtight control unit comprises a box body, a vacuum generator, a vacuum valve and a control center electrically connected with the vacuum generator and the vacuum valve are arranged in the box body, a pressure regulating valve electrically connected with the control center is arranged on the outer side of the tail part of the box body, and a touch screen, a first pressure gauge, a buzzer, a starting switch and a power switch which are all electrically connected with the control center are arranged on a front panel of the box body.
In a preferred embodiment, an inspection method of a wire harness rubber sleeve airtight inspection machine, wherein an airtight control unit and an airtight mechanical device are connected by using an air pipe to form an airtight passage, the airtight mechanical device comprises a wire harness clamping device used for clamping and fixing a wire harness and enabling one end with a wire harness plug to be in an airtight environment, one end of the wire harness penetrates through a feed port to enter a sealing tank and enable the wire harness rubber sleeve to be blocked at the feed port, and the wire harness clamping device clamps and fixes the wire harness rubber sleeve so that the wire harness to be detected is fixed on a sealing mechanism, and the inspection method comprises the following steps:
s100, respectively opening handles on the two quick clamps upwards to enable the two connecting arms to be tilted upwards at the same time, and further respectively driving the first pressing block and the second pressing block to be tilted away from the upper surface of the cover plate;
s200, inserting one end of the wire harness with a wire harness plug into the sealing tank from a feed inlet until the wire harness rubber sleeve blocks the feed inlet;
step S300, firstly, a handle on one of the quick clamps is pressed downwards to enable the corresponding first pressing block to be pressed to the half position of the harness rubber sleeve along the same way, and then the second pressing block is pressed to the other half position of the harness rubber sleeve, so that the harness rubber sleeve is blocked and fixed at the feed inlet;
s400, turning on a power switch of the airtight control unit, and setting a pressure value to be detected of the sealed tank, a reference range of normal pressure value change during detection and preset detection retention time through a touch screen HMI (human machine interface);
step S500, turning on a starting switch to enable an airtight control unit to start working, enabling air to enter the sealed tank through an air inlet of an electromagnetic valve on the airtight mechanical device, and displaying pressure value change in the sealed tank in real time by a second pressure gauge along with continuous entering of the air;
s600, when the pressure value in the sealing tank reaches a set pressure value to be detected, stopping air from entering, and entering the next detection step; when the pressure value in the sealing tank does not reach the set pressure value to be detected all the time, judging that the sealing tank leaks air, and further judging that the air tightness of the wire harness rubber sleeve is unqualified; when the pressure value in the sealed tank exceeds the set pressure value to be detected, the pressure is released through a safety valve on the sealed tank;
s700, continuously checking the change of a pressure value in the sealing tank according to preset detection residence time, and judging that the air pressure in the sealing tank is stable when the pressure value is always kept in a reference range, so as to judge that the air tightness of the wire harness rubber sleeve is qualified; and when the air tightness of the wire harness rubber sleeve exceeds the reference range, judging that the air tightness of the wire harness rubber sleeve is unqualified, and displaying NG on a touch screen and giving an alarm.
And step S800, finishing the check.
The wire harness rubber sleeve airtightness checking machine and the checking method thereof have the advantages that the airtightness effect of the wire harness rubber sleeve is judged by introducing air into the sealing tank and then detecting the pressure value change in the closed space of the sealing tank in real time, and further the quality of the wire harness rubber sleeve is judged. The inspection method of the wire harness rubber sleeve airtight inspection machine provided by the invention utilizes the characteristics of the airtight space, so that the whole test process is more complete in waterproof and moistureproof, and can also realize intellectualization and automation of the test process, thereby better and more comprehensively meeting the test requirements of various novel automobile wire harnesses.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view illustrating an airtight inspection machine for a wire harness rubber sleeve in one embodiment;
FIG. 2 is a schematic structural view of a wire harness rubber sleeve airtight inspection machine shown in FIG. 1 at another angle;
FIG. 3 is a schematic perspective view of a wire harness to be inspected;
FIG. 4 is a partially exploded perspective view of the gas seal mechanism of FIG. 1;
FIG. 5 is an exploded perspective view of the sealing mechanism of FIG. 4;
FIG. 6 is a top perspective view of the air-tight mechanism of FIG. 1;
FIG. 7 is a perspective view of the sealing mechanism of FIG. 4;
FIG. 8 is an enlarged view of portion A of FIG. 7;
FIG. 9 is a perspective view of the quick clip of FIG. 8;
FIG. 10 is an exploded perspective view of the snap clip of FIG. 9;
FIG. 11 is a schematic view of the quick clip of FIG. 9 shown in an open position;
FIG. 12 is an exploded perspective view of the gas seal mechanism of FIG. 1;
FIG. 13 is a schematic perspective view of the air sealing control unit of FIG. 1;
FIG. 14 is another perspective exploded view of the air lock control unit of FIG. 13.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, an airtight inspection machine for a wire harness rubber sleeve includes an airtight control unit 10 and an airtight mechanical device 20 electrically connected to each other, wherein the airtight mechanical device 20 is provided with a sealing mechanism 30 for clamping a wire harness 50 and making a wire harness rubber sleeve 53 as a sealing end; the air-tightness control unit 10 detects the pressure value inside the sealing mechanism 30 in real time to judge the air tightness of the wire harness gum cover 53.
Referring to fig. 4 to 6, the sealing mechanism 30 includes a sealing can 31, and a sealing plate 314 and a cover plate 33 are respectively fixed to openings at two ends of the sealing can 31 in a sealing manner; a feed port 331 is formed on the cover plate 33 at a position corresponding to the sealing can 31, and a wire harness holding device 32 is fixed on a plate surface of the cover plate 33 opposite to the sealing can 31 at a position corresponding to the feed port 331.
One end of the wire harness 50 enters the sealing tank 31 through the feed opening 331 and the wire harness rubber sleeve 53 is blocked at the feed opening 331, and the wire harness clamping device 32 clamps and fixes the wire harness rubber sleeve 53, so that the wire harness 50 to be tested is fixed on the sealing mechanism 30.
Referring to fig. 7 to 11, the wire harness clamping device 32 includes two opposite and non-intersecting quick clamps 320, and a first pressing block 321 and a second pressing block 322 are respectively connected and fixed on opposite ends of the two quick clamps 320; the first pressing block 321 and the second pressing block 322 are sequentially and alternately buckled and pressed on the harness rubber sleeve 53 to fix and seal the feed port 331, so that a closed space is formed inside the seal tank 31.
The quick clamp 320 includes a base 3201 fixedly connected with the cover plate 33, a handle 3203 and a connecting arm 3202 are connected to the base, and the first pressing block 321 or the second pressing block 322 can be slidably connected with the connecting arm 3202 respectively; the handle 3203 is rotatably connected with the connecting arm 3202 and opens and closes at an angle, and the connecting arm 3202 rotates at an angle downwards by pressing the handle 3203 downwards until the first pressing block 321 or the second pressing block 322 abuts against the cover plate 33.
A sliding groove 3208 extending along the arm length direction is formed on the connecting arm 3202, a sliding block 3207 capable of sliding along the sliding groove 3208 is respectively arranged at the edges of two opposite notches of the sliding groove 3208, a threaded rod 3205 capable of being in threaded connection with the two sliding blocks 3207 is also arranged in the sliding groove 3208, a connecting head 3206 capable of being fixedly connected with the first pressing block 321 or the second pressing block 322 is formed on the end part of the threaded rod 3205 facing the cover plate 33, and the relative distance between the first pressing block 321 or the second pressing block 322 can be changed by adjusting the position of the sliding block 3207 in the sliding groove 3208, so that the wire harness rubber sleeve 53 with different sizes can be adapted.
The quick clamp 320 further includes a connecting piece 3204 for connecting the handle 3203 and the base 3201, the connecting piece 3204 is formed with a first connecting piece axle hole 32041 and a second connecting piece axle hole 32042; the base 3201 is formed with a first base shaft hole 32011 and a second base shaft hole 32012, the handle 3203 is formed with a first handle shaft hole 32031 and a second handle shaft hole 32032, and the connecting arm 3202 is formed with a first connecting arm shaft hole 32021 and a second connecting arm shaft hole 32022.
The first base shaft hole 32011 is coaxially and rotatably connected with the first connecting piece shaft hole 32041, the second connecting piece shaft hole 32042 is coaxially and rotatably connected with the first handle shaft hole 32031, the second handle shaft hole 32032 is coaxially and rotatably connected with the second connecting arm shaft hole 32022, and the first connecting arm shaft hole 32021 is coaxially and rotatably connected with the second base shaft hole 32012; the handle 3203 is rotatably connected with the connecting arm 3202 and opens and closes at an angle, and when the angle is close to 180 degrees, the quick clamp 320 is in a clamping state.
A plurality of supporting ribs 313 for connecting the cover plate 33 and the sealing plate 314 are uniformly arranged on the outer wall of the sealing can 31, threaded holes are formed at the end parts of the supporting ribs 313, and the cover plate 33, the sealing can 31 and the sealing plate 314 can be connected into a whole by fasteners; the outer wall of the sealed tank 31 is also provided with a mechanical second pressure gauge 311 and a mechanical safety valve 312.
Referring to fig. 12, the airtight mechanical device 20 includes a housing 40, and the sealing mechanism 30 is disposed inside and extends out of the housing 40; the case 40 comprises a frame 41, and a front panel 42, a rear panel 45, a left side panel 43, a right side panel 44 and a top cover 46 which are respectively arranged at the front, the rear, the left, the right and the upper parts of the frame, wherein a hidden type slider 47 is respectively arranged at the relative positions of the left side panel 43 and the right side panel 44; one end of the frame 41, which is positioned on the front panel 42, is formed with a mounting opening 49 positioned above the front panel 42, and the sealing mechanism 30 can be placed into the case 40 from the mounting opening 49 and fixedly connected with the frame 41 to enclose the mounting opening 49; the case 40 is also provided with a solenoid valve 60 which can be connected with the sealed tank 31 and the air-tight control unit 10, and an air inlet 61 and an air outlet 62 on the solenoid valve 60 extend out of the case 40.
Referring to fig. 13 to 14, the airtight control unit 10 includes a box 100, a vacuum generator 109, a vacuum valve 108 and a control center 107 electrically connected to the vacuum generator 109 and the vacuum valve 108 are disposed in the box 100, a pressure regulating valve 101 electrically connected to the control center 107 is disposed outside a tail portion of the box 100, and a touch screen 102, a first pressure gauge 103, a buzzer 104, a start switch 105 and a power switch 106 electrically connected to the control center 107 are disposed on a front panel of the box 100.
An inspection method of a wire harness rubber sleeve airtight inspection machine, wherein an airtight control unit 10 and an airtight mechanical device 20 are connected by an air pipe to form an airtight passage, the airtight mechanical device 20 comprises a wire harness clamping device 32 which is used for clamping and fixing a wire harness 50 and enabling one end with a wire harness plug 52 to be in an airtight environment, one end of the wire harness 50 penetrates through a feed opening 331 to enter a sealing tank 31 and enable a wire harness rubber sleeve 53 to be blocked at the feed opening 331, and the wire harness clamping device 32 clamps and fixes the wire harness rubber sleeve 53 so that the wire harness 50 to be tested is fixed on a sealing mechanism 30, and the method comprises the following steps:
step S100, respectively opening the handles 3203 on the two quick clamps 320 upward to tilt the two connecting arms 3202 upward at the same time, and further respectively driving the first pressing block 321 and the second pressing block 322 to be tilted away from the upper surface of the cover plate 33;
step S200, inserting one end of the wire harness 50 with the wire harness plug 52 into the sealing tank 31 from the feed opening 331 until the wire harness rubber sleeve 53 blocks the feed opening 331;
step S300, firstly, a handle 3203 on one of the quick clamps 320 is pressed downwards to enable a corresponding first pressing block 321 to be pressed to a half position of the harness rubber sleeve 53, and then, a second pressing block 322 is pressed to be pressed to the other half position of the harness rubber sleeve 53 in the same way, so that the harness rubber sleeve 53 is blocked and fixed at the feed inlet 331;
step S400, turning on a power switch 106 of the airtight control unit 10, and setting a pressure value to be detected of the seal tank 31, a reference range of normal pressure value change during detection and preset detection retention time through a touch screen HMI (human machine interface);
step S500, turning on the starting switch 106 to enable the airtight control unit 10 to start working, enabling air to enter the sealed tank 31 through the air inlet 61 of the electromagnetic valve 60 on the airtight mechanical device 20, and displaying the pressure value change in the sealed tank 31 in real time by the second pressure gauge 311 along with the continuous entering of the air;
s600, when the pressure value in the seal tank 31 reaches the set pressure value to be detected, stopping air from entering, and entering the next detection step; when the pressure value in the seal pot 31 does not reach the set pressure value to be detected all the time, judging that the seal pot 31 leaks air, and further judging that the air tightness of the wire harness rubber sleeve 53 is unqualified; when the pressure value in the sealed tank 31 exceeds the set pressure value to be detected, the pressure is relieved through a safety valve 312 on the sealed tank 31;
step S700, continuously checking the change of the pressure value in the seal pot 31 according to the preset detection retention time, and when the pressure value is always kept in a reference range, judging that the air pressure in the seal pot 31 is stable, and further judging that the air tightness of the wire harness rubber sleeve 53 is qualified; when the air tightness of the wire harness rubber sleeve 53 is out of the reference range, the air tightness of the wire harness rubber sleeve 53 is judged to be unqualified, and NG is displayed on the touch screen and an alarm is given.
And step S800, finishing the check.
In summary, the wire harness rubber sleeve airtightness inspection machine and the inspection method thereof comprise an airtightness control unit and an airtightness mechanical device which are electrically connected with each other, wherein the sealing mechanism comprises a sealing tank, a sealing plate and a cover plate which are packaged at openings at two ends of the sealing tank, the upper surface of a feed inlet of the cover plate is also provided with a wire harness clamping device which is connected with the wire harness rubber sleeve and used for fixing the wire harness rubber sleeve, one end of a wire harness to be inspected, which is provided with a wire harness plug, can penetrate through the feed inlet of the cover plate and enter the sealing tank, the wire harness rubber sleeve is blocked at the feed inlet, and when the wire harness rubber sleeve airtightness inspection machine is used for inspecting the airtightness effect of the wire harness rubber sleeve by air intake into the sealing tank and detecting the pressure value change in the sealed space, so as to further judge the quality of the wire harness rubber sleeve. The inspection method of the wire harness rubber sleeve airtight inspection machine provided by the invention utilizes the characteristics of the airtight space, so that the whole test process is more complete in waterproof and moistureproof, and can also realize intellectualization and automation of the test process, thereby better and more comprehensively meeting the test requirements of various novel automobile wire harnesses.
It should be noted that, in the above system embodiment, each included component is merely divided according to functional logic, but is not limited to the above division as long as the corresponding function can be achieved; in addition, the specific names of the functional components are only for convenience of distinguishing from each other and are not used for limiting the protection scope of the present invention.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The wire harness rubber sleeve airtight inspection machine is characterized by comprising an airtight control unit (10) and an airtight mechanical device (20) which are electrically connected with each other, wherein a sealing mechanism (30) used for clamping a wire harness (50) and enabling a wire harness rubber sleeve (53) to serve as a sealing end is arranged on the airtight mechanical device (20); the air tightness control unit (10) detects the pressure value in the sealing mechanism (30) in real time to judge the air tightness of the wiring harness rubber sleeve (53).
2. The wire harness rubber sleeve airtight inspection machine is characterized in that the sealing mechanism (30) comprises a sealing tank (31), and a sealing plate (314) and a cover plate (33) are respectively fixedly packaged at openings at two ends of the sealing tank (31); a feeding hole (331) communicated with the cover plate (33) is formed in the position, corresponding to the sealing tank (31), of the cover plate (33), and a wire harness clamping device (32) corresponding to the feeding hole (331) is fixed on one plate surface, back to the sealing tank (31), of the cover plate (33); one end of the wire harness (50) penetrates through the feed opening (331) to enter the sealing tank (31) and enable the wire harness rubber sleeve (53) to be blocked at the feed opening (331), and the wire harness clamping device (32) clamps and fixes the wire harness rubber sleeve (53) so that the wire harness (50) to be tested is fixed on the sealing mechanism (30).
3. The airtight inspection machine for wire harness rubber sleeves as claimed in claim 2, wherein the wire harness clamping device (32) comprises two oppositely arranged and non-intersecting quick clamps (320), and a first pressing block (321) and a second pressing block (322) are respectively fixedly connected to opposite ends of the two quick clamps (320); the first pressing block (321) and the second pressing block (322) are sequentially buckled on the wiring harness rubber sleeve (53) in a staggered mode so as to fix and block the feeding hole (331), and therefore a closed space is formed inside the sealing tank (31).
4. The airtight inspection machine for wire harness rubber sleeves as claimed in claim 3, wherein the quick clamp (320) comprises a base (3201) fixedly connected with the cover plate (33), a handle (3203) and a connecting arm (3202) are connected to the base, and the first pressing block (321) or the second pressing block (322) can be slidably connected with the connecting arm (3202) respectively; the handle (3203) is rotatably connected with the connecting arm (3202) and opens and closes at an angle, and the connecting arm (3202) can rotate downwards at an angle by pressing the handle (3203) until the first pressing block (321) or the second pressing block (322) abuts against the cover plate (33).
5. The airtight inspection machine for wire harness rubber sleeves as claimed in claim 4, wherein a sliding groove (3208) extending along the arm length direction is formed on the connecting arm (3202), a sliding block (3207) capable of sliding along the sliding groove (3208) is respectively arranged at the edges of two opposite notches of the sliding groove (3208), a threaded rod (3205) capable of being in threaded connection with the two sliding blocks (3207) simultaneously is further arranged in the sliding groove (3208), and a connecting head (3206) capable of being fixedly connected with the first pressing block (321) or the second pressing block (322) is formed at the end of the threaded rod (3205) facing the cover plate (33).
6. The wire harness gum cover airtight inspection machine according to claim 5, wherein the quick clamp (320) further comprises a connecting piece (3204) for communicating the handle (3203) with the base (3201), the connecting piece (3204) having a first connecting piece shaft hole (32041) and a second connecting piece shaft hole (32042) formed thereon; a first base shaft hole (32011) and a second base shaft hole (32012) are formed on the base (3201), a first handle shaft hole (32031) and a second handle shaft hole (32032) are formed on the handle (3203), and a first connecting arm shaft hole (32021) and a second connecting arm shaft hole (32022) are formed on the connecting arm (3202); first base shaft hole (32011) with first connection piece shaft hole (32041) coaxial rotation is connected, second connection piece shaft hole (32042) and first handle shaft hole (32031) coaxial rotation are connected, second handle shaft hole (32032) with second connecting arm shaft hole (32022) coaxial rotation is connected, first connecting arm shaft hole (32021) with second base shaft hole (32012) coaxial rotation is connected.
7. The wire harness gum cover airtightness checking machine according to claim 6, wherein a plurality of support ribs (313) for connecting the cover plate (33) and the sealing plate (314) are uniformly provided on the outer wall of the sealing pot (31), threaded holes are formed at the ends of the support ribs (313), and the cover plate (33), the sealing pot (31) and the sealing plate (314) can be connected into a whole by fasteners; and the outer wall of the seal tank (31) is also provided with a mechanical second pressure gauge (311) and a mechanical safety valve (312).
8. The wire harness gum cover airtightness inspection machine according to claim 7, wherein the airtightness mechanical device (20) comprises a cabinet (40), the sealing mechanism (30) being provided inside thereof and protruding to the outside of the cabinet (40); the case (40) comprises a frame (41), a front panel (42), a rear panel (45), a left side panel (43), a right side panel (44) and a top cover (46), wherein the front panel, the rear panel, the left side panel, the right side panel and the top cover are respectively arranged at the front, the rear, the left, the right and the upper parts of the frame, and the relative positions of the left side panel (43) and the right side panel (44) are respectively provided with a hidden type pull head (47); one end of the frame (41) positioned on the front panel (42) is provided with a mounting opening (49) positioned above the front panel (42), and the sealing mechanism (30) can be placed into the case (40) from the mounting opening (49) and is fixedly connected with the frame (41) so as to seal the mounting opening (49); an electromagnetic valve (60) which can be connected with the sealing tank (31) and the air-tight control unit (10) is further arranged in the case (40), and an air inlet (61) and an air outlet (62) on the electromagnetic valve (60) extend out of the case (40).
9. The wire harness rubber sleeve airtightness checking machine according to claim 8, wherein the airtightness control unit (10) comprises a box body (100), a vacuum generator (109), a vacuum valve (108) and a control center (107) electrically connected with the vacuum generator and the vacuum valve are arranged in the box body (100), a pressure regulating valve (101) electrically connected with the control center (107) is arranged on the outer side of the tail portion of the box body (100), and a touch screen (102), a first pressure gauge (103), a buzzer (104), a starting switch (105) and a power switch (106) which are all electrically connected with the control center (107) are arranged on a front panel of the box body (100).
10. An inspection method of the wire harness rubber sleeve airtight inspection machine according to claim 9, wherein the airtight control unit (10) and the airtight mechanical device (20) are connected by an air pipe to form an airtight passage, the airtight mechanical device (20) comprises a wire harness clamping device (32) for clamping and fixing the wire harness (50) and enabling one end with a wire harness plug (52) to be in an airtight environment, one end of the wire harness (50) enters the sealing tank (31) through a feed opening (331) and enables the wire harness rubber sleeve (53) to be blocked at the feed opening (331), and the wire harness clamping device (32) clamps and fixes the wire harness rubber sleeve (53) so as to enable the wire harness (50) to be tested to be fixed on the sealing mechanism (30), and the method is characterized by comprising the following steps:
s100, respectively upwards opening handles 3203 on the two quick clamps 320 to enable the two connecting arms 3202 to be upwards tilted simultaneously, and further respectively driving the first pressing block 321 and the second pressing block 322 to be tilted away from the upper surface of the cover plate 33;
step S200, inserting one end of the wire harness (50) with a wire harness plug (52) into the sealing tank (31) from a feed opening (331) and stopping when the feed opening (331) is plugged by the wire harness rubber sleeve (53);
step S300, firstly, a handle (3203) on one of the quick clamps (320) is pressed downwards to enable the corresponding first pressing block (321) to be pressed downwards to a half position of the harness rubber sleeve (53) along the same way, then the second pressing block (322) is pressed downwards to enable the second pressing block to be pressed to the other half position of the harness rubber sleeve (53), and the harness rubber sleeve (53) is blocked and fixed at the feed port (331);
s400, turning on a power switch (106) of the airtight control unit (10), and setting a pressure value to be detected of the sealing tank (31), a reference range of normal pressure value change during detection and preset detection retention time through a touch screen HMI (human machine interface);
step S500, turning on a starting switch (106) to enable an airtight control unit (10) to start working, enabling air to enter a sealed tank (31) through an air inlet (61) of an electromagnetic valve (60) on an airtight mechanical device (20), and displaying the change of the pressure value in the sealed tank (31) in real time by a second pressure gauge (311) along with the continuous entering of the air;
s600, when the pressure value in the seal tank (31) reaches a set pressure value to be detected, stopping air from entering, and entering the next detection step; when the pressure value in the sealing tank (31) does not reach the set pressure value to be detected all the time, judging that the sealing tank (31) leaks air, and further judging that the air tightness of the wire harness rubber sleeve (53) is unqualified; when the pressure value in the sealed tank (31) exceeds the set pressure value to be detected, the pressure is relieved through a safety valve (312) on the sealed tank (31);
s700, continuously checking the change of the pressure value in the sealing tank (31) according to the preset detection retention time, and judging that the air pressure in the sealing tank (31) is stable when the pressure value is always kept in a reference range, so that the air tightness of the wire harness rubber sleeve (53) is qualified; and when the air tightness of the wire harness rubber sleeve (53) is beyond the reference range, judging that the air tightness of the wire harness rubber sleeve is unqualified, and displaying NG on a touch screen and giving an alarm.
And step S800, finishing the check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210474746.0A CN114858370A (en) | 2022-04-29 | 2022-04-29 | Wire harness rubber sleeve airtightness checking machine and checking method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210474746.0A CN114858370A (en) | 2022-04-29 | 2022-04-29 | Wire harness rubber sleeve airtightness checking machine and checking method thereof |
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| CN114858370A true CN114858370A (en) | 2022-08-05 |
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| CN202210474746.0A Pending CN114858370A (en) | 2022-04-29 | 2022-04-29 | Wire harness rubber sleeve airtightness checking machine and checking method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4332535A1 (en) * | 2022-09-05 | 2024-03-06 | Lisa Dräxlmaier GmbH | Device, wire harness inspection station and method for leak tightness inspection |
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2022
- 2022-04-29 CN CN202210474746.0A patent/CN114858370A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4332535A1 (en) * | 2022-09-05 | 2024-03-06 | Lisa Dräxlmaier GmbH | Device, wire harness inspection station and method for leak tightness inspection |
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