CN114593874A - Automatic leakage test detection equipment and method for diesel engine cylinder body flow passage - Google Patents
Automatic leakage test detection equipment and method for diesel engine cylinder body flow passage Download PDFInfo
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- CN114593874A CN114593874A CN202210176154.0A CN202210176154A CN114593874A CN 114593874 A CN114593874 A CN 114593874A CN 202210176154 A CN202210176154 A CN 202210176154A CN 114593874 A CN114593874 A CN 114593874A
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- 230000007246 mechanism Effects 0.000 claims description 85
- 238000003825 pressing Methods 0.000 claims description 40
- 238000009434 installation Methods 0.000 claims description 37
- 239000012636 effector Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 10
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- 238000007667 floating Methods 0.000 claims description 3
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- 238000007789 sealing Methods 0.000 description 5
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- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
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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
- G01M3/025—Details with respect to the testing of engines or engine parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
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- Y02T10/40—Engine management systems
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Abstract
The invention relates to the technical field of assembly and detection of large diesel engine cylinder bodies, in particular to automatic leakage test equipment and a leakage test method for a diesel engine cylinder body flow passage. The device comprises an automatic rivet plugging unit, a truss manipulator feeding unit and a feeding assembly line of a main oil duct leakage testing unit of an engine cylinder body; the automatic rivet plugging unit and the engine cylinder body main oil duct leakage testing unit are arranged beside a feeding assembly line for conveying the engine cylinder body; and a truss manipulator feeding unit is erected above the automatic rivet plugging unit, the engine cylinder body main oil gallery leakage testing unit and the feeding assembly line. The invention is used for making up the low efficiency of manual detection, realizing the detection of all products, improving the efficiency and realizing the full-automatic production.
Description
Technical Field
The invention relates to the technical field of assembly and detection of large diesel engine cylinder bodies, in particular to automatic leakage test equipment and a leakage test method for a diesel engine cylinder body flow passage.
Background
The engine assembly is a core component of an automobile and comprises a cylinder body, a cylinder cover, a piston and many other parts. Such parts often need to operate under high load for a long time, and in order to ensure the service stability and the service life of the engine assembly, the parts are required to have high machining precision and assembly precision. Due to the fact that the number of the parts is large, the types of the parts are various, the shapes of the parts are irregular, most of the assembly work is finished manually, and the efficiency is low. The engine cylinder is the core part of the parts, and at present, the leakage test of the oil passage or the water passage of the large diesel engine cylinder is mostly finished manually by a sampling inspection mode. The efficiency is very low, also can't realize the product and examine entirely, often the use later stage appears the trouble such as oil impregnate.
The leakage testing device for the diesel engine cylinder body flow passage is needed to overcome the defects that manual detection efficiency is low and full product detection cannot be realized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides automatic leakage test equipment for a diesel engine cylinder body flow passage.
The technical scheme for realizing the purpose of the invention is as follows: an automatic leakage test detection device for a diesel engine cylinder body flow passage comprises an automatic rivet plugging unit, a truss manipulator feeding unit, an engine cylinder body main oil duct leakage test unit and a feeding assembly line; the automatic rivet plugging unit and the engine cylinder body main oil duct leakage testing unit are arranged beside a feeding assembly line for conveying the engine cylinder body; and a truss manipulator feeding unit is erected above the automatic rivet plugging unit, the engine cylinder body main oil duct leakage testing unit and the feeding assembly line.
Further, the automatic rivet plugging unit comprises a robot installation base, a six-axis industrial robot system, a robot end effector and a vision guiding system, the six-axis industrial robot system is installed on the robot installation base, the robot end effector is installed on the six-axis industrial robot system, a final riveting and plugging installation link is executed, the vision guiding system is installed on the robot end effector, accurate positioning is carried out on an installation hole, and the robot is guided to reach an accurate position.
Further, the robot end effector comprises a robot connecting flange, an actuating mechanism mounting bracket, a large riveting plug full-automatic rivet mechanism, a small riveting plug full-automatic rivet mechanism and a high-precision linear laser line scanning sensor; the large riveting plug full-automatic rivet pulling mechanism, the small riveting plug full-automatic rivet pulling mechanism and the high-precision line laser line scanning sensor are all installed on the actuating mechanism installing support and are connected with a six-axis industrial robot system through the robot connecting flange.
Further, the truss manipulator feeding unit comprises a truss manipulator upright post, a truss manipulator X-axis forward and backward movement assembly, a truss manipulator Y-axis left and right movement assembly, a truss manipulator Z-axis up and down movement assembly, a truss manipulator tail end grabbing assembly, the truss manipulator upright post is an installation supporting component of a truss manipulator feeding unit, the X-axis back-and-forth movement component of the truss manipulator is installed on the truss manipulator upright post, the truss manipulator Y-axis left-right movement assembly is arranged on the truss manipulator X-axis front-back movement assembly, the truss manipulator Z-axis up-and-down motion assembly is arranged on the truss manipulator Y-axis left-and-right motion assembly, the grabbing component at the tail end of the truss manipulator is arranged on the up-and-down moving component of the Z axis of the truss manipulator to carry out the final grabbing link, through the linkage of each component, the cylinder body is carried back and forth between the position of the material loading assembly line and the position of the main oil duct leakage testing unit of the engine cylinder body.
Further, the engine cylinder body main oil gallery leakage test unit comprises a station installation welding base, a plugging mechanism installation structural member, a pressing plugging mechanism, an inflation leakage test system, a pneumatic control system and a workpiece pressing mechanism, the station installation welding base is an installation supporting part of a main oil gallery leakage testing unit of an engine cylinder body, the plugging mechanism mounting structural member is mounted on the station mounting welding base, the plugging mechanism is pressed, and the workpiece pressing mechanism are arranged on the mounting structural member of the plugging mechanism in a test way, and finally the leak test point of the cylinder body is plugged, so that a closed space is formed in the inner cavity of the cylinder body, the inflation leakage test system provides leakage test air for the inner cavity of the cylinder body, the air is pressurized to the required leakage test pressure, and the leakage amount of the gas is detected, whether the gas is qualified is judged, the pneumatic control system provides a gas source for the leakage testing system, and the action of each plugging mechanism cylinder is controlled.
Furthermore, a plurality of the pressing plugging mechanisms are arranged on the plugging mechanism mounting structural member, and each pressing plugging mechanism comprises a plugging cylinder, a plugging head and a guide mechanism; the plugging head is in floating connection with the plugging cylinder to ensure that the plugging cylinder is tightly attached to the plane of the engine cylinder body and leakage is prevented, and the plugging cylinder is driven to act through a pneumatic control system arranged on the side face of the station installation welding base to complete plugging.
Further, the workpiece pressing mechanism is installed on the plugging mechanism installation structural member and located right above the engine cylinder body, the workpiece pressing mechanism comprises a pressing cylinder, a pressing block, a shifting cylinder and a shifting linear guide rail, the workpiece pressing mechanism is installed on the shifting linear guide rail, and when the truss manipulator feeding unit grabs the workpiece, the workpiece pressing mechanism is driven by the shifting cylinder to move away, so that a feeding space is reserved.
An automatic leakage test method for a diesel engine cylinder body flow passage is based on any automatic leakage test detection equipment for the diesel engine cylinder body flow passage, and comprises the following steps:
s1, conveying an engine cylinder block to a rivet pulling station in equipment through a material loading assembly line and stopping;
s2, the automatic rivet plug pulling unit enables the robot end executor to grab two rivet plugs through a six-axis industrial robot system;
s3, the vision guide system guides the six-axis industrial robot system to move to a mounting position to complete a rivet plugging process;
s4, continuously operating the cylinder body, conveying the cylinder body to a leakage testing station of a main oil duct leakage testing unit of the engine cylinder body, and stopping;
s5, grabbing the cylinder body by a truss manipulator feeding unit and placing the cylinder body on a leakage test detection table;
s6, leaving the truss manipulator feeding unit;
s7, a workpiece pressing mechanism in a main oil duct leakage test unit of the engine cylinder body is moved above the workpiece in a test mode, the workpiece is pressed, a blocking mechanism is pressed to act, and a blocking opening of the cylinder body is pressed to perform leakage test detection;
and S8, completing leakage test, grabbing the cylinder body by the feeding unit of the truss manipulator, placing the cylinder body on the line body, and conveying the workpiece out of the equipment.
After the technical scheme is adopted, the invention has the following positive effects:
(1) the invention is used for making up the low efficiency of manual detection, realizing the detection of all products, improving the efficiency and realizing the full-automatic production.
(2) The automatic pulling riveting plugging unit is automatically completed by the robot in the whole process from taking to installing, so that the manual operation process is omitted, and unqualified products caused by the deviation of the manual placing riveting plugging position are avoided. The automatic rivet plugging unit creatively increases the monitoring of the breaking force and the breaking displacement in the rivet pulling process, outputs a curve in real time and improves the process precision of the whole process.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural view of an automatic blind rivet plugging unit according to the present invention;
FIG. 3 is a schematic structural diagram of a compressing and plugging mechanism of the present invention;
FIG. 4 is a schematic view of the workpiece pressing mechanism of the present invention;
FIG. 5 is a schematic structural view of a loading unit of the truss manipulator of the present invention;
FIG. 6 is a schematic view of the structure of the main oil gallery leakage test unit of the engine cylinder block of the present invention;
FIG. 7 is a top view of the present invention;
fig. 8 is a schematic structural diagram of the robot end effector of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
Example 1
Referring to fig. 1 and 7, the invention comprises an automatic rivet plugging unit 100, a truss manipulator feeding unit 200, and a feeding assembly line 500 of an engine cylinder main oil gallery leakage testing unit 300; the automatic rivet plugging unit 100 and the engine cylinder body main oil gallery leakage testing unit 300 are arranged beside a feeding assembly line 500 for conveying engine cylinders; and a truss manipulator feeding unit 200 is erected above the automatic rivet plugging unit 100, the engine cylinder body main oil gallery leakage testing unit 300 and the feeding assembly line 500. The automatic rivet pulling and plugging unit 100 can automatically grab a rivet plug through the six-axis industrial robot system 120, rivet plug assembly is carried out after the accurate position of a rivet plug hole is locked, the truss manipulator feeding unit 200 can automatically and freely switch between the 500 position of an feeding assembly line and the 300 position of an engine cylinder body main oil duct leakage testing unit and grab back and forth, the engine cylinder body main oil duct leakage testing unit 300 mainly carries out leakage testing on a diesel engine cylinder body oil duct (water channel), whether sealing elements of the diesel engine cylinder body oil duct (water channel) are installed in a qualified mode is detected, and no leakage risk exists. The automatic rivet plugging unit 100 is automatically completed by a robot in the whole process from taking to installing, so that the manual operation process is omitted, and unqualified products caused by the deviation of the manual rivet plugging position are avoided. The automatic rivet plugging unit 100 creatively increases the monitoring of the breaking force and the breaking displacement in the rivet pulling process, outputs a curve in real time, and improves the process precision of the whole process.
Referring to fig. 2, the automatic rivet plugging unit 100 includes a robot mounting base 110, a six-axis industrial robot system 120, a robot end effector 130, a vision guiding system 140, wherein the six-axis industrial robot system 120 is mounted on the robot mounting base 110, the robot end effector 130 is mounted on the six-axis industrial robot system 120, a final rivet plugging mounting link is performed, the vision guiding system 140 is mounted on the robot end effector 130, a mounting hole is accurately positioned, and the robot is guided to reach an accurate position.
Referring to fig. 8, the robot end effector 130 includes a robot connecting flange 131, an actuator mounting bracket 132, a large-plug full-automatic rivet pulling mechanism 133, a small-plug full-automatic rivet pulling mechanism 134, and a high-precision linear laser line scanning sensor 135; the large riveting plug full-automatic rivet pulling mechanism 133, the small riveting plug full-automatic rivet pulling mechanism 134 and the high-precision line laser line scanning sensor 135 are all installed on the execution mechanism installation support 132 and are connected with the six-axis industrial robot system 120 through the robot connecting flange 131. The large rivet plug full-automatic rivet pulling mechanism 133 and the small rivet plug full-automatic rivet pulling mechanism 134 are driven by a robot to finish automatic rivet plug taking work, then the rivet plugs are transferred to a cylinder body rivet pulling plug position, the rivet plugs are moved to a breaking position by a pushing cylinder on the rivet pulling mechanism, and through a hydraulic breaking system, the rivet pulling mechanism breaks the rivet plugs and expands the plug heads, so that the plug heads and cylinder body holes are tensioned, and sealing is realized. And recovering the tail nail by a vacuum device after the rivet plug is broken. The large riveting plug full-automatic rivet pulling mechanism 133 and the small riveting plug full-automatic rivet pulling mechanism 134 monitor the rivet pulling process in real time through increased pressure and displacement sensors in the rivet pulling process, generate a force/displacement real-time curve and judge the rivet pulling quality. The high-precision line laser line scanning sensor 135 scans the cylinder body rivet plug mounting hole, finds out a central point for accurately mounting the rivet plug, detects the rivet plug mounting depth and the tail nail pull-out section height after the rivet plug is mounted, and judges whether the rivet plug is qualified or not. Robot end effector 130 has integrated material, installation, rivet, recovery, detection etc. technology to realize full automation.
Referring to fig. 5, the truss manipulator feeding unit 200 includes a truss manipulator upright post 210, a truss manipulator X-axis forward and backward movement assembly 220, a truss manipulator Y-axis left and right movement assembly 230, a truss manipulator Z-axis up and down movement assembly 240, and a truss manipulator end grabbing assembly 250, wherein the truss manipulator upright post 210 is an installation support component of the truss manipulator feeding unit 200, the truss manipulator X-axis forward and backward movement assembly 220 is installed on the truss manipulator upright post 210, the truss manipulator Y-axis left and right movement assembly 230 is installed on the truss manipulator X-axis forward and backward movement assembly 220, the truss manipulator Z-axis up and down movement assembly 240 is installed on the truss manipulator Y-axis left and right movement assembly 230, the truss manipulator end grabbing assembly 250 is installed on the truss manipulator Z-axis up and down movement assembly 220 to perform a final grabbing link, and a cylinder is transported back and forth between an upper material feeding assembly line 500 position and an engine cylinder main oil gallery leakage testing unit 300 position through linkage of each assembly. In order to adapt to the beat of a product production line, the feeding assembly line 500 and the engine cylinder body main oil gallery leakage testing unit 300 are respectively provided with two grabbing positions. The truss manipulator feeding unit 200 needs to be operated back and forth at four grabbing positions, information of the cylinder body tray chip is effectively recorded by reading and storing the information of the cylinder body tray chip, and carrying work is completed by compiling an efficient operation program, so that the utilization rate of the truss manipulator feeding unit 200 is remarkably improved.
Referring to fig. 6, the engine block main oil gallery leakage testing unit 300 comprises a station installation welding base 310, a plugging mechanism installation structural member 320, a pressing plugging mechanism 330, an inflation leakage testing system 340, a pneumatic control system 350 and a workpiece pressing mechanism 360, wherein the station installation welding base 310 is an installation supporting part of the engine block main oil gallery leakage testing unit 300, the plugging mechanism installation structural member 320 is installed on the station installation welding base 310 and presses the plugging mechanism 330, and the workpiece pressing mechanism 360 are arranged on the plugging mechanism mounting structural member 320, and finally the leakage test point of the cylinder body is plugged, so that a closed space is formed in the inner cavity of the cylinder body, the air-filled leakage test system 340 provides leakage test air for the inner cavity of the cylinder body, the pressure is increased to the required leakage test pressure, and the leakage amount of the gas is detected, whether the gas is qualified is judged, the pneumatic control system 350 provides a gas source for the leakage testing system, and the action of each plugging mechanism cylinder is controlled.
Referring to fig. 3, a plurality of pressing plugging mechanisms 330 are mounted on the plugging mechanism mounting structure 320, and the pressing plugging mechanisms 330 include a plugging cylinder 331, a plugging head 332, and a guiding mechanism 333; the plugging head 332 is in floating connection with the plugging cylinder 331 to ensure that the engine cylinder is tightly attached to the plane of the engine cylinder and leakage is prevented, and the pneumatic control system 350 arranged on the side surface of the station installation welding base 310 is used for driving the plugging cylinder 331 to act to complete plugging.
Referring to fig. 4, the workpiece pressing mechanism 360 is installed on the plugging mechanism installation structure 320 and located right above the engine cylinder, the workpiece pressing mechanism 360 includes a pressing cylinder 361, a pressing block 362, a transferring cylinder 363 and a transferring linear guide 364, the workpiece pressing mechanism 360 is installed on the transferring linear guide 364, and when the truss manipulator feeding unit 200 grabs a workpiece, the workpiece pressing mechanism 360 is driven by the transferring cylinder 363 to move away, so that a feeding space is reserved. The engine cylinder main oil gallery leakage testing unit 300 sets the testing pressure to be 8.5bar at most for better detecting the sealing performance of the engine cylinder and each sealing structural part. Therefore, high requirements are put forward on the pressing and plugging mechanism 330, especially for plugging the leakage detecting hole on the arc surface. Therefore, the compaction plugging mechanism 330 disclosed by the invention adopts a soft plugging material, and the soft plugging material is subjected to profiling design, so that the sealing property of the plugging mechanism is ensured. The stability of the whole system is ensured.
Example 2
An automatic leakage test method for a diesel engine cylinder body flow passage is based on the automatic leakage test detection equipment for the diesel engine cylinder body flow passage in embodiment 1, and comprises the following steps:
s1, conveying an engine cylinder block to a rivet pulling station inside equipment through a material feeding assembly line 500 and stopping;
s2, the automatic rivet-plugging unit 100 uses a six-axis industrial robot system 120 and a robot end effector 130 to grab two rivets;
s3, the vision guide system 140 guides the six-axis industrial robot system 120 to move to a mounting position to complete a rivet plugging process;
s4, the cylinder body continues to operate, and the cylinder body is conveyed to a leakage testing station of the main oil duct leakage testing unit 300 of the engine cylinder body and stops;
s5, the truss manipulator feeding unit 200 grabs the cylinder body and places the cylinder body on a leakage test detection table;
s6, separating the truss manipulator feeding unit 200;
s7, a workpiece pressing mechanism 360 in the engine cylinder main oil duct leakage testing unit 300 is moved above a workpiece in a test mode, the workpiece is pressed, a pressing and blocking mechanism 330 acts, and a cylinder block blocking opening is pressed to perform leakage testing detection;
and S8, completing leakage test, grabbing the cylinder body by the truss manipulator feeding unit 200, placing the cylinder body on the line body, and conveying the workpiece out of the equipment.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an automatic leak test check out test set of diesel engine cylinder body runner which characterized in that: the device comprises an automatic rivet plugging unit (100), a truss manipulator feeding unit (200), an engine cylinder body main oil gallery leakage testing unit (300) and a feeding assembly line (500); the automatic rivet plugging unit (100) and the engine cylinder body main oil gallery leakage testing unit (300) are arranged beside a feeding assembly line (500) for conveying the engine cylinder body; and a truss manipulator feeding unit (200) is erected above the automatic rivet plugging unit (100), the engine cylinder body main oil gallery leakage testing unit (300) and the feeding assembly line (500).
2. The automatic leakage test equipment for the flow channel of the diesel engine cylinder block according to claim 1, characterized in that: the automatic rivet plugging unit (100) comprises a robot installation base (110), a six-axis industrial robot system (120), a robot end effector (130) and a vision guiding system (140), wherein the six-axis industrial robot system (120) is installed on the robot installation base (110), the robot end effector (130) is installed on the six-axis industrial robot system (120) to execute a final riveting and plugging installation link, the vision guiding system (140) is installed on the robot end effector (130) to accurately position an installation hole and guide the robot to reach an accurate position.
3. The automatic leak test equipment for the cylinder flow channel of the diesel engine as claimed in claim 2, wherein: the robot end effector (130) comprises a robot connecting flange (131), an actuating mechanism mounting bracket (132), a large riveting plug full-automatic rivet pulling mechanism (133), a small riveting plug full-automatic rivet pulling mechanism (134) and a high-precision linear laser line scanning sensor (135); the large riveting plug full-automatic rivet pulling mechanism (133), the small riveting plug full-automatic rivet pulling mechanism (134) and the high-precision line laser linear scanning sensor (135) are all installed on the execution mechanism installation support (132) and are connected with the six-axis industrial robot system (120) through the robot connecting flange (131).
4. The automatic leakage test equipment for the flow channel of the diesel engine cylinder block according to claim 1, characterized in that: the truss manipulator feeding unit (200) comprises a truss manipulator upright post (210), a truss manipulator X-axis forward and backward movement assembly (220), a truss manipulator Y-axis left and right movement assembly (230), a truss manipulator Z-axis up and down movement assembly (240) and a truss manipulator tail end grabbing assembly (250), wherein the truss manipulator upright post (210) is an installation supporting component of the truss manipulator feeding unit (200), the truss manipulator X-axis forward and backward movement assembly (220) is installed on the truss manipulator upright post (210), the truss manipulator Y-axis left and right movement assembly (230) is installed on the truss manipulator X-axis forward and backward movement assembly (220), the truss manipulator Z-axis up and down movement assembly (240) is installed on the truss manipulator Y-axis left and right movement assembly (230), and the truss manipulator tail end grabbing assembly (250) is installed on the truss manipulator Z-axis upward and downward movement assembly (220), and carrying out a final grabbing link, and carrying the cylinder body back and forth between the position of the material loading assembly line (500) and the position of the engine cylinder body main oil gallery leakage testing unit (300) through linkage of all the components.
5. The automatic leakage test equipment for the flow channel of the diesel engine cylinder block according to claim 1, characterized in that: the leakage testing unit (300) of the main oil duct of the engine cylinder body comprises a station installation welding base (310), a plugging mechanism installation structural part (320), a pressing plugging mechanism (330), an inflation leakage testing system (340), a pneumatic control system (350) and a workpiece pressing mechanism (360), wherein the station installation welding base (310) is an installation supporting part of the main oil duct leakage testing unit (300) of the engine cylinder body, the plugging mechanism installation structural part (320) is installed on the station installation welding base (310), the pressing plugging mechanism (330) and the workpiece pressing mechanism (360) are installed on the plugging mechanism installation structural part (320), finally a leakage testing point of the cylinder body is plugged, a sealed space is formed in the inner cavity of the cylinder body, the inflation leakage testing system (340) provides leakage testing air for the inner cavity of the cylinder body, the pressure is increased to a required leakage testing pressure, and the leakage amount of gas is detected, and judging whether the air cylinder is qualified or not, wherein the pneumatic control system (350) provides an air source for the leakage testing system and controls the action of the air cylinders of the plugging mechanisms.
6. The automatic leakage test equipment for the flow channel of the diesel engine cylinder block as claimed in claim 5, wherein: a plurality of pressing plugging mechanisms (330) are arranged on the plugging mechanism mounting structural part (320), and each pressing plugging mechanism (330) comprises a plugging air cylinder (331), a plugging head (332) and a guide mechanism (333); the blocking head (332) is in floating connection with the blocking cylinder (331) to ensure that the engine cylinder is tightly attached to the plane of the engine cylinder body and leakage is prevented, and the pneumatic control system (350) arranged on the side surface of the station installation welding base (310) is used for driving the blocking cylinder (331) to act to complete blocking.
7. The automatic leakage test equipment for the flow channel of the diesel engine cylinder block as claimed in claim 5, wherein: the workpiece pressing mechanism (360) is installed on the plugging mechanism installation structural part (320) and located right above an engine cylinder body, the workpiece pressing mechanism (360) comprises a pressing cylinder (361), a pressing block (362), a shifting cylinder (363) and a shifting linear guide rail (364), the workpiece pressing mechanism (360) is installed on the shifting linear guide rail (364), and when the truss manipulator feeding unit (200) grabs a workpiece, the workpiece pressing mechanism (360) is driven by the shifting cylinder (363) to move away, and a feeding space is reserved.
8. An automatic leakage test method for a diesel engine cylinder block runner, which is based on the automatic leakage test equipment for the diesel engine cylinder block runner as claimed in any of claims 1 to 6, and is characterized in that: comprises the following steps:
s1, conveying an engine cylinder block to a rivet pulling station in equipment through a material loading assembly line and stopping;
s2, the automatic rivet plug pulling unit enables the robot end executor to grab two rivet plugs through a six-axis industrial robot system;
s3, the vision guide system guides the six-axis industrial robot system to move to a mounting position to complete a rivet plugging process;
s4, the cylinder body continues to operate, and the cylinder body is conveyed to a leakage testing station of a main oil duct leakage testing unit of the engine cylinder body and stops;
s5, grabbing the cylinder body by a truss manipulator feeding unit and placing the cylinder body on a leakage test detection table;
s6, leaving the truss manipulator feeding unit;
s7, a workpiece pressing mechanism in a main oil duct leakage test unit of the engine cylinder body is moved above the workpiece in a test mode, the workpiece is pressed, a blocking mechanism is pressed to act, and a blocking opening of the cylinder body is pressed to perform leakage test detection;
and S8, completing leakage test, grabbing the cylinder body by the feeding unit of the truss manipulator, placing the cylinder body on the line body, and conveying the workpiece out of the equipment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176154.0A CN114593874B (en) | 2022-02-25 | 2022-02-25 | Automatic leakage testing and detecting equipment and leakage testing method for flow channel of diesel engine cylinder body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176154.0A CN114593874B (en) | 2022-02-25 | 2022-02-25 | Automatic leakage testing and detecting equipment and leakage testing method for flow channel of diesel engine cylinder body |
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| CN114593874A true CN114593874A (en) | 2022-06-07 |
| CN114593874B CN114593874B (en) | 2024-01-09 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114593874B (en) | 2024-01-09 |
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