CN113514249A - Comprehensive detection device and detection method for engine cylinder block - Google Patents
Comprehensive detection device and detection method for engine cylinder block Download PDFInfo
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- CN113514249A CN113514249A CN202110353294.6A CN202110353294A CN113514249A CN 113514249 A CN113514249 A CN 113514249A CN 202110353294 A CN202110353294 A CN 202110353294A CN 113514249 A CN113514249 A CN 113514249A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/05—Testing internal-combustion engines by combined monitoring of two or more different engine parameters
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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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention relates to a comprehensive detection device and a detection method for an engine cylinder block, wherein the detection device comprises a detection device base, a cylinder block flatness detection station, a cylinder diameter detection station and a sliding guide rail are arranged on the detection device base, and a movable base is arranged on the sliding guide rail in a sliding manner; a control console and a control console supporting frame are arranged on one side of the cylinder body flatness detection station, a levelness detection backlight plate is arranged on the other side of the cylinder body flatness detection station, and a levelness detection laser emitting device is arranged on the control console supporting frame; the cylinder diameter detection station is provided with a lifting workbench and a detection device platform, the detection device platform is fixedly connected with the workbench, the detection device platform is provided with a piezoelectric type inner diameter measuring head and a magnetic flaw detection device positive magnetic pole generator, and the magnetic flaw detection device negative magnetic pole generator is arranged on a movable base for placing a cylinder block; the detection method comprises the steps of equipment installation, cylinder block flatness detection, cylinder block flaw detection and cylinder block inner diameter detection, a detection conclusion is obtained, and whether the engine needs overhaul is finally judged.
Description
Technical Field
The invention belongs to the technical field of automobile part remanufacturing detection processing, and particularly relates to a comprehensive detection device and a detection method for an engine cylinder block.
Background
The engine is the most important component assembly in the automobile, and the performance of the engine directly influences the performance of the automobile. The cylinder block is the core main body of the engine, connects each cylinder and the crankcase into a whole, and is a supporting framework for mounting pistons, crankshafts and other parts and accessories. With the increase of the automobile driving mileage, the engine cylinder is worn, corroded and deformed, and as a result, the power performance of the engine is reduced, the related performance can not meet the requirements, and the economic benefit is poor.
Whether the engine needs to be overhauled or not mainly depends on the working condition and the abrasion degree of the cylinder, and whether the cylinder body is good or not is judged, and the crack leakage of the cylinder body, the flatness of the cylinder body and the abrasion condition of the cylinder body are mainly checked. In the current society, the three inspections of the cylinder body mainly take manual operation inspection and calculation by means of certain instruments and equipment, and are time-consuming, labor-consuming and incapable of ensuring the detection precision.
Disclosure of Invention
The invention aims at the technical problems, and provides a comprehensive detection device and a detection method for an engine cylinder block.
In order to achieve the purpose, the invention adopts the technical scheme that: a comprehensive detection device for an engine cylinder block comprises a detection device base, wherein a cylinder block flatness detection station, a cylinder diameter detection station and a sliding guide rail are arranged on the detection device base, and a moving base for conveying the cylinder block from the cylinder block flatness detection station to the cylinder diameter detection station is arranged on the sliding guide rail in a sliding mode;
a control table supporting frame and a control table are arranged on one side of the cylinder body flatness detection station, a levelness detection laser emitting device and a vertical moving mechanism are arranged on the side face of the control table, the vertical moving mechanism is used for controlling the vertical movement of the levelness detection laser emitting device, and a levelness detection backlight plate matched with the levelness detection laser emitting device is arranged on the other side of the cylinder body flatness detection station;
the cylinder diameter detection station is provided with a lifting workbench and a detection device platform, the lifting workbench is supported on two sides of the sliding guide rail in a crossing mode, the detection device platform is fixedly connected with the lifting workbench, a positive magnetic pole generator of a magnetic flaw detection device is mounted on the detection device platform, a negative magnetic pole generator of the magnetic flaw detection device is mounted on a fine adjustment base used for placing a cylinder block, and the fine adjustment base is mounted on the moving base through a fine adjustment mechanism;
the detection device platform is also provided with a piezoelectric inner diameter measuring head for detecting the inner diameter of the cylinder body, the piezoelectric inner diameter measuring head is installed at the lower end of the hollow gauge rod, the upper part of the hollow gauge rod is connected with the measuring device platform through a movable mechanism, an inner pipeline of the hollow gauge rod is connected with a magnetic suspension conveying pipeline, and a plurality of spraying holes are densely distributed in the surface of the rod body so as to spray magnetic suspension to the inner wall of the cylinder body.
The measuring device platform is of an annular structure, the movable mechanism comprises an inner platform and an inclined platform, and the inner platform is supported on an inner ring of the measuring device platform and horizontally rotates around the center of a circle of the inner platform under the driving of a power mechanism on the measuring device platform; the inclined platform is arranged in a mounting hole in the center of the inner platform, two ends of the inclined platform are supported on the inner platform through a rotating shaft, and the rotating shaft at one end is in transmission connection with the inclined driving mechanism so as to realize inclined swinging of the inclined mechanism around the rotating shaft; the hollow watch rod is connected to the inclined platform.
The power mechanism is a rotating motor arranged on the measuring device platform, and a driving gear on the rotating motor is meshed with a gear ring arranged on the side face of the inner platform.
The inclination driving mechanism comprises an inclination motor, a driving gear arranged on an output shaft of the inclination motor and a transmission gear arranged on the rotating shaft, the inclination driving motor is fixed on the inner platform, the driving gear and the transmission gear are in meshing transmission, and the transmission gear is arranged below the driving gear.
The inclined platform is provided with a pair of clamps to clamp the hollow gauge rod.
The lower surface of the inclined platform is also provided with a visual inspection device to collect the cylinder block image below and transmit the cylinder block image to the console.
The fine adjustment mechanism comprises a transverse moving cylinder and a longitudinal moving cylinder.
And a high-pressure one-way valve is arranged at the upper end of the hollow meter rod to be connected with a magnetic suspension conveying pipeline and convey the magnetic suspension to an internal pipeline of the hollow meter rod.
The method for comprehensively detecting the engine cylinder block by using the comprehensive detection device for the engine cylinder block comprises the steps of equipment installation, cylinder block flatness detection, cylinder block flaw detection and cylinder block inner diameter detection;
in the installation stage of the equipment, the piezoelectric type inner diameter measuring head is installed at the lower end of the hollow gauge rod, then the hollow gauge rod is fixed on an inclined platform of a measuring device platform, and then the lifting workbench is lifted so that the piezoelectric type inner diameter measuring head is higher than the upper end surface of the cylinder body;
in the flatness detection stage of the cylinder block, the cylinder block is conveyed to a flatness detection station through a movable base, then a levelness detection laser emitting device is started, and the levelness of the cylinder block is obtained under the coordination of a levelness detection backlight plate;
the flaw detection of the cylinder body and the inner diameter detection of the cylinder body are both carried out at a cylinder diameter detection station, and the cylinder body is conveyed to the cylinder diameter detection station by a movable base;
in the flaw detection stage of the cylinder block, the lifting workbench falls for a certain distance to enable a section of the hollow meter rod with the spraying hole to enter the cylinder block, a high-pressure one-way valve at the upper end of the hollow meter rod is opened, pressurized magnetic suspension is input into the hollow meter rod and is uniformly sprayed on the inner wall of the cylinder block, the lifting workbench moves up and down in the process of spraying the magnetic suspension, a measuring device platform is attached to the upper end of the cylinder block after the lifting workbench descends for the last time, then a positive magnetic pole generator and a negative magnetic pole generator of the magnetic flaw detection device are started, images at the moment are collected through a visual inspection device arranged on the measuring device platform, image information is transmitted to a display of a control console, and finally the positive magnetic pole generator and the negative magnetic pole generator of the magnetic flaw detection device are closed;
in the cylinder body inner diameter detection stage, the inclination driving mechanism on the measuring device platform drives the inclination swing of the inclination platform, so that the piezoelectric inner diameter measuring head is in contact with the inner wall of the cylinder after being inclined, the piezoelectric inner diameter measuring head detects the cylinder diameter at different positions of the inner wall of the cylinder body under the driving of the lifting workbench, and the detection result is transmitted back to the control console.
The cylindricity of the inner diameter of the cylinder body can be measured in the detection of the inner diameter of the cylinder body, and the method comprises the following steps: firstly, measuring the maximum inner diameter of the cylinder body by using a piezoelectric inner diameter measuring head, positioning a lifting workbench at the height, and keeping the piezoelectric inner diameter measuring head in contact with the inner wall of the cylinder body; then an inner platform on the measuring device platform is controlled to rotate to drive the piezoelectric type inner diameter measuring head to rotate around the inner wall of the cylinder body, so that the piezoelectric type inner diameter measuring head measures the minimum cylinder diameter value, and the maximum cylindricity of the inner diameter of the cylinder body is obtained through calculation.
The invention has the beneficial effects that: the invention designs a device for comprehensively detecting the cylinder block in an automatic control mode, and the measuring reference position of the cylinder block is adjusted by using visual detection, a movable base and a mechanical control part thereof; the three transmission modes of the transmission device driven by the motor are utilized to comprehensively measure all specification parameters of the inner diameter of the cylinder body, and uniform spraying of the magnetic suspension is realized; in order to detect the damage in the cylinder body, a magnetic pole generation module is arranged to directly detect various dark damages of the cylinder body by means of a magnetic flaw detection principle; in order to comprehensively evaluate the sealing performance of the engine, the flatness detection and analysis of the cylinder body are added. Therefore, the invention can detect the cylinder block in all directions, and improves the automation degree, the detection efficiency and the accuracy of the detection of the cylinder.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the platform of the measuring device of the present invention;
FIG. 3 is a bottom view of the platform of the measuring device of the present invention;
FIG. 4 is a schematic view of the mounting of the mobile base on the base of the detecting device according to the present invention;
FIG. 5 is a schematic view of the piezoelectric inside diameter measuring head and the hollow shaft according to the present invention;
FIG. 6 is a schematic view of the console support and console of the present invention;
FIG. 7 is a block flow diagram of the detection method of the present invention;
the labels in the figure are: 1. a lifting workbench, 2, a column, 3, a levelness detection backlight plate, 4, a detection device base, 5, a connecting rod, 6, a detection device platform, 7, a hollow meter rod, 8, a piezoelectric type inner diameter measuring head, 9, a base frame, 10, a transverse adjusting hydraulic cylinder, 11, a sliding guide rail, 12, a lifting hydraulic cylinder fixing seat, 13, a control platform, 14, a detection device operation control knob, 15, a control platform supporting frame, 16, a fine adjusting base, 17, an adjusting gasket, 18, a rotating motor fixing bolt, 19, a rotating motor, 20, an inner platform, 21, a rotating shaft, 22, a tilting platform, 23, a meter rod mounting hole, 24, a tilting driving motor, 25, a clamp bolt, 26, a supporting block, 27, a driving gear, 28, a transmission gear, 29, a longitudinal adjusting hydraulic cylinder, 30, a visual inspection device, 31, a magnetic suspension conveying pipeline, 32 and a high-pressure one-way valve, 33. spraying holes, 34, a levelness detection laser emitting device, 35 and a vertical rail.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
Referring to the attached drawings, the comprehensive detection device for the engine cylinder block comprises a detection device base 4 fixed on an operation table, wherein the length direction of the detection device base 4 is defined as different stations, mainly a cylinder block flatness detection station and a cylinder diameter detection station; two parallel sliding guide rails 11 are arranged on the surface of the detection device base 4, and the sliding guide rails 11 are laid along the length direction of the detection device base 4; the sliding guide rail 11 is provided with a movable base 9 in a sliding mode, the movable base 9 is mainly used for bearing an air cylinder body to be detected, the air cylinder body is transferred at different stations, sliding of the movable base 9 can be achieved through manual pushing, and the movable base can also be achieved through connection with a corresponding linear driving mechanism.
Because the types of the cylinder blocks to be detected in different batches or every time are different, the sizes of the cylinder blocks are different, in order to adapt to the detection of the cylinder blocks with different specifications, the movable base further comprises a fine adjustment base 16 controlled by a fine adjustment mechanism, and the fine adjustment mechanism is used for realizing the transverse and longitudinal movement adjustment of the fine adjustment base 16 so as to adjust the position to meet the detection requirement.
Further, the movable base comprises an outer-layer base frame 9 and an inner-layer fine-tuning base 16, the fine-tuning base 16 is a rectangular supporting plate and is provided with a magnetic flaw detection device negative magnetic pole generator; the rectangular frame 9 is arranged on the sliding guide rail 11 in a sliding mode, the fine adjustment base 16 is used for supporting a cylinder body to be detected, a transverse adjusting hydraulic cylinder 10 is arranged between the left side face and the right side face of the fine adjustment base 16 and the inner side face of the rectangular frame 9, a longitudinal adjusting hydraulic cylinder 29 is arranged between the front side face and the rear side face of the fine adjustment base 16 and the inner side face of the rectangular frame 9, fine adjustment of the left position and the right position of the fine adjustment base 16 can be achieved through the transverse adjusting hydraulic cylinder 10, fine adjustment of the front position and the rear position of the fine adjustment base 16 can be achieved through the longitudinal adjusting hydraulic cylinder 29, and therefore the fine adjustment mechanism is formed by the transverse adjusting hydraulic cylinder 10 and the longitudinal adjusting hydraulic cylinder 29.
As shown in fig. 1 and 6, a console support frame 15 and a console 13 installed on the top of the console support frame 15 are arranged on one side of a cylinder body flatness detection station of the detection device base 4, a levelness detection laser emitting device 34 and a vertical moving mechanism are arranged on the side of the console 13, the vertical moving mechanism is used for controlling the vertical movement of the levelness detection laser emitting device 34, a levelness detection backlight plate 3 matched with the levelness detection laser emitting device 34 is arranged on the other side of the cylinder body flatness detection station, and light sensing is embedded in the levelness detection backlight plate 3. Therefore, the levelness detection laser emitting device 34 is disposed opposite to the levelness detection backlight plate 3 on both outer sides of the two slide rails 11.
As shown in fig. 6, the vertical moving mechanism includes a vertical rail 35 disposed on the console support frame 15 and a slider sliding up and down in the vertical rail 35, the slider is driven by a corresponding driving mechanism, such as a screw nut structure, and the levelness detection laser emitting device 34 is mounted on the slider.
Continuing to refer to fig. 1, the bore diameter detection station department of detection device base 4 is equipped with elevating platform 1 and detection device platform 6, elevating platform 1 spanes the support and is in sliding guide 11's both sides, and elevating platform 1 includes two stands 2, two hydraulic cylinder and a table surface, hydraulic cylinder's one end is fixed on stand 2, the other end through hydraulic cylinder fixing base 12 with table surface fixed connection, the table surface lower surface through connecting rod 5 fixed connection detection device platform 6. A positive magnetic pole generator of the magnetic flaw detection device is mounted on the detection device platform 6, and a negative magnetic pole generator of the magnetic flaw detection device is mounted on a fine adjustment base 6 for placing a cylinder body; the piezoelectric type inner diameter measuring head 8 is arranged at the lower end of the hollow meter rod 7, and the upper part of the hollow meter rod 7 is connected with the measuring device platform 6 through a movable mechanism.
As shown in fig. 5, a high-pressure one-way valve 32 is installed at the upper end of the hollow gauge rod 7 to connect with a magnetic suspension conveying pipeline 31 and convey pressurized magnetic suspension to the inner pipeline of the hollow gauge rod 7; the hollow watch rod 7 is densely provided with a plurality of spraying holes 33 to spray magnetic suspension to the inner wall of the cylinder body.
Referring to fig. 1 and 2, the measuring device platform 6 is an annular structure, an inner platform 20 is arranged at the center of the annular structure, two supporting blocks 26 capable of supporting the edge of the inner ring of the measuring device platform 6 are arranged on the inner platform 20, and the two supporting blocks 26 are respectively located at two ends of the inner platform 20 in the same diameter direction and extend outwards for a section; a rotating motor 19 is arranged on one side of the measuring device platform 6, a driving gear on the rotating motor 19 is meshed with a gear ring arranged on the side face of the inner platform 20, and after the rotating motor 19 works, the inner platform 20 is driven to rotate on the measuring device platform 6. The center of the inner platform 20 is provided with a rectangular hole, an inclined platform 22 is arranged in the rectangular hole, two radial ends of the inclined platform 22 are respectively rotatably supported on the arc-shaped grooves of the inner platform 20 through a rotating shaft 21, a transmission gear 28 is coaxially fixed on the rotating shaft 21 at one end, an inclined driving motor 24 is fixed on the inner platform 20, an output shaft of the inclined driving motor 24 is provided with a driving gear 27, the driving gear 27 is meshed with the transmission gear 28 to drive the inclined platform 22 to obliquely swing around the rotating shaft 21, and the transmission gear 28 is arranged below the driving gear 27.
The center of the inclined platform 22 is provided with a pair of clamps for clamping the hollow watch bar 7, and the clamps are used for fixedly clamping the hollow watch bar 7 by clamp bolts 25 arranged on the side surfaces.
When the inclination driving motor 24 is started, the hollow watch rod 7 and the piezoelectric inner diameter measuring head 8 can be driven to incline, so that the piezoelectric inner diameter measuring head 8 is attached to the inner wall of the cylinder; after the rotating motor 19 is started, the piezoelectric inner diameter measuring head 8 can be driven to rotate along the circumferential direction of the inner wall of the cylinder. And the lifting workbench 1 can drive the whole measuring device platform 6 and the piezoelectric inner diameter measuring head 8 to lift.
Further, as shown in fig. 3, a visual inspection device 30 is further provided on the lower surface of the inclined platform 22, and the visual inspection device 30 is mainly an industrial camera to capture an image of the cylinder block below and transmit the image of the cylinder block to the console 13. Before detection, the position of the cylinder body is corrected by the console 13 through the transverse adjusting hydraulic cylinder 10 and the longitudinal adjusting hydraulic cylinder 29 of the fine adjustment mechanism, so that the center of the cylinder is aligned with the center of the detection station.
When the vision inspection device 30 is used to perform centering adjustment on the cylinder, the computer performs vision analysis on the acquired photos to calculate the amplitude and direction of the cylinder to be adjusted, and the console 13 controls the corresponding fine adjustment mechanism to perform fine adjustment. The image processing of the photos belongs to the machine vision technology commonly used in the industrial field at present, is a conventional technology, and the principle and the detailed process of the technology are not excessively explained.
In addition, even if the machine vision technology is not adopted, the position of the cylinder body can still be adjusted horizontally or longitudinally by controlling the fine adjustment mechanism through the manual operation console 13 according to the real-time picture of the industrial camera displayed on the display screen of the console 13, and the alignment of the position is completed.
The invention is also matched with adjusting gaskets 17 with different thicknesses, and the proper adjusting gasket 17 can be properly selected according to the model and specification of the cylinder block in the installation process of the console support frame 15 and the installation process of the lifting workbench 1.
The comprehensive detection of the engine cylinder block by using the comprehensive detection device of the engine cylinder block mainly comprises the following aspects: the method comprises the following steps of cylinder body flatness detection, cylinder body flaw detection, cylinder body inner diameter detection and cylinder body inner diameter cylindricity detection.
The specific operation of each detection item will be described below.
1. Detecting the flatness of the cylinder body: the cylinder body to be detected is placed on a fine adjustment base 6 in a movable base, the movable base is pushed to a cylinder body flatness detection station by manpower, then a levelness detection laser emitting device 34 is started, the vertical moving mechanism drives the levelness detection laser emitting device 34 to move downwards from an initial position (default to the highest position of a vertical rail 35), in the moving process, the levelness detection laser emitting device 34 continuously scans towards a levelness detection backlight plate 3, laser emitted by the levelness detection laser emitting device 34 is irradiated on the levelness detection backlight plate 3, a photosensitive element on the levelness detection backlight plate 3 captures a first breakpoint optical signal as a starting signal and a last extinction optical signal as an ending signal, the two signals are transmitted to a control console 13 to process and calculate an included angle alpha between a two-point connecting line and a last signal line and judge whether the included angle meets the requirement or not, thereby obtaining the flatness value of the cylinder body.
2. Flaw detection of the cylinder body: the movable base is pushed to a cylinder diameter detection station, the lifting workbench 1 is controlled to fall for a certain distance, a section of the hollow meter rod 7 with the spraying hole enters the cylinder body, a high-pressure one-way valve 32 at the upper end of the hollow meter rod 7 is opened, pressurized magnetic suspension is input into the hollow meter rod 7, and the magnetic suspension is uniformly and finely sprayed on the inner wall of the cylinder body. In order to ensure the spraying effect, in the process of spraying the magnetic suspension, the lifting workbench 1 moves up and down, the measuring device platform 6 is attached to the upper end of the cylinder body after the last descent, then the positive pole generator of the magnetic flaw detection device and the negative pole generator of the magnetic flaw detection device are started, and iron powder in the magnetic suspension sprayed before can be gathered on a magnetic line. The ultraviolet lamp is turned on and the image is collected by the visual inspection device 30 arranged on the measuring device platform 6, the image information is transmitted to the display screen of the console 13, and if cracks, sections and the like appear in the picture, the situation indicates that dark injuries exist at the position. And finally, closing the positive magnetic pole generator and the negative magnetic pole generator of the magnetic flaw detection device through the console.
3. And (3) detecting the inner diameter of the cylinder body: the inclined driving motor 24 on the measuring device platform 6 drives the inclined platform 22 to obliquely swing, so that the piezoelectric inner diameter measuring head 8 is in contact with the inner wall of the cylinder after being inclined, the difference value of the resistance is calculated according to the current change under different pressure conditions measured by the piezoelectric effect, the magnitude of the pressure is calculated according to the relation between the resistance value of the resistance and the pressure, the compression amount of the spring on the piezoelectric inner diameter measuring head 8 is calculated, and the numerical value of the inner diameter of the cylinder block is finally obtained. Under the lifting drive of the lifting workbench 1, the piezoelectric inner diameter measuring head 8 detects the cylinder diameter at different parts of the inner wall of the cylinder block and transmits the detection result back to the console 13.
4. And (3) detecting the cylindricity of the inner diameter of the cylinder body: in order to obtain the maximum cylindricity of the cylinder bore, the measurer will usually measure the wear minimum on the cross section of the cylinder where the wear is the greatest. Firstly, repeatedly measuring the inner diameters of the air cylinder at different heights by using an air cylinder body inner diameter detection method until the maximum inner diameter value is obtained, and keeping the height of the piezoelectric inner diameter measuring head 8 at the position; and secondly, starting the rotating motor 19 to drive the piezoelectric type inner diameter measuring head 8 to rotate along the inner wall of the cylinder, so that the piezoelectric type inner diameter measuring head 8 measures the minimum cylinder diameter value, and the maximum cylindricity of the inner diameter of the cylinder body is obtained through calculation.
The method for comprehensively detecting the cylinder block by adopting the comprehensive detection device for the engine cylinder block comprises the following steps of:
the method comprises the following steps: mounting equipment, namely mounting the piezoelectric inner diameter measuring head 8 at the lower end of the hollow gauge rod 7, fixing the hollow gauge rod 7 on an inclined platform 22 of the measuring device platform 6, and then lifting the lifting workbench 1 to enable the piezoelectric inner diameter measuring head 8 to be higher than the upper end surface of the cylinder body;
and step two, according to the above detection items, performing the flatness detection of the cylinder body, the flaw detection of the cylinder body, the inner diameter detection of the cylinder body and the cylindricity detection of the inner diameter of the cylinder body one by one.
In the invention, the work of all hydraulic cylinders and the work of the detection equipment are controlled by the console, and the detected information is also transmitted back to the console, processed by a processing system of the console and displayed on a display screen. The console can adopt a PLC control system and the like.
The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the specific embodiments of the present invention can be modified or substituted with equivalents with reference to the above embodiments, and any modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims to be appended.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an engine cylinder block synthesizes detection device which characterized in that: the detection device comprises a detection device base, wherein a cylinder body flatness detection station, a cylinder diameter detection station and a sliding guide rail are arranged on the detection device base, and a moving base for conveying a cylinder body from the cylinder body flatness detection station to the cylinder diameter detection station is arranged on the sliding guide rail in a sliding manner;
a control table supporting frame and a control table are arranged on one side of the cylinder body flatness detection station, a levelness detection laser emitting device and a vertical moving mechanism are arranged on the side face of the control table, the vertical moving mechanism is used for controlling the vertical movement of the levelness detection laser emitting device, and a levelness detection backlight plate matched with the levelness detection laser emitting device is arranged on the other side of the cylinder body flatness detection station;
the cylinder diameter detection station is provided with a lifting workbench and a detection device platform, the lifting workbench is supported on two sides of the sliding guide rail in a crossing mode, the detection device platform is fixedly connected with the lifting workbench, a positive magnetic pole generator of a magnetic flaw detection device is mounted on the detection device platform, a negative magnetic pole generator of the magnetic flaw detection device is mounted on a fine adjustment base used for placing a cylinder block, and the fine adjustment base is mounted on the moving base through a fine adjustment mechanism;
the detection device platform is also provided with a piezoelectric inner diameter measuring head for detecting the inner diameter of the cylinder body, the piezoelectric inner diameter measuring head is installed at the lower end of the hollow gauge rod, the upper part of the hollow gauge rod is connected with the measuring device platform through a movable mechanism, an inner pipeline of the hollow gauge rod is connected with a magnetic suspension conveying pipeline, and a plurality of spraying holes are densely distributed in the surface of the rod body so as to spray magnetic suspension to the inner wall of the cylinder body.
2. The engine block comprehensive testing device according to claim 1, characterized in that: the measuring device platform is of an annular structure, the movable mechanism comprises an inner platform and an inclined platform, and the inner platform is supported on an inner ring of the measuring device platform and horizontally rotates around the center of a circle of the inner platform under the driving of a power mechanism on the measuring device platform; the inclined platform is arranged in a mounting hole in the center of the inner platform, two ends of the inclined platform are supported on the inner platform through a rotating shaft, and the rotating shaft at one end is in transmission connection with the inclined driving mechanism so as to realize inclined swinging of the inclined mechanism around the rotating shaft; the hollow watch rod is connected to the inclined platform.
3. The engine block comprehensive testing device according to claim 2, characterized in that: the power mechanism is a rotating motor arranged on the measuring device platform, and a driving gear on the rotating motor is meshed with a gear ring arranged on the side face of the inner platform.
4. The engine block comprehensive testing device according to claim 3, characterized in that: the inclination driving mechanism comprises an inclination driving motor, a driving gear arranged on an output shaft of the inclination driving motor and a transmission gear arranged on the rotating shaft, the inclination driving motor is fixed on the inner platform, the driving gear and the transmission gear are in meshing transmission, and the transmission gear is arranged below the driving gear.
5. The engine block comprehensive testing device according to claim 2, characterized in that: the inclined platform is provided with a pair of clamps to clamp the hollow gauge rod.
6. The engine block comprehensive testing device according to claim 4, characterized in that: the lower surface of the inclined platform is also provided with a visual inspection device to acquire an image of the cylinder block below and transmit the image of the cylinder block to the controller.
7. The engine block comprehensive testing device according to claim 1, characterized in that: the fine adjustment mechanism comprises a transverse moving cylinder and a longitudinal moving cylinder.
8. The engine block comprehensive testing device according to claim 1, characterized in that: and a high-pressure one-way valve is arranged at the upper end of the hollow meter rod to be connected with a magnetic suspension conveying pipeline and convey the magnetic suspension to an internal pipeline of the hollow meter rod.
9. The method for comprehensively inspecting the engine cylinder block by using the apparatus for comprehensively inspecting an engine cylinder block according to any one of claims 1 to 8, characterized in that: the method comprises the steps of equipment installation, cylinder block flatness detection, cylinder block flaw detection and cylinder block inner diameter detection;
in the installation stage of the equipment, the piezoelectric type inner diameter measuring head is installed at the lower end of the hollow gauge rod, then the hollow gauge rod is fixed on an inclined platform of a measuring device platform, and then the lifting workbench is lifted so that the piezoelectric type inner diameter measuring head is higher than the upper end surface of the cylinder body;
in the flatness detection stage of the cylinder block, the cylinder block is conveyed to a flatness detection station through a movable base, then a levelness detection laser emitting device is started, and the levelness of the cylinder block is obtained under the coordination of a levelness detection backlight plate;
the flaw detection of the cylinder body and the inner diameter detection of the cylinder body are both carried out at a cylinder diameter detection station, and the cylinder body is conveyed to the cylinder diameter detection station by a movable base;
in the flaw detection stage of the cylinder block, the lifting workbench falls for a certain distance to enable a section of the hollow meter rod with the spraying hole to enter the cylinder block, a high-pressure one-way valve at the upper end of the hollow meter rod is opened, pressurized magnetic suspension is input into the hollow meter rod and is uniformly sprayed on the inner wall of the cylinder block, the lifting workbench moves up and down in the process of spraying the magnetic suspension, a measuring device platform is attached to the upper end of the cylinder block after the lifting workbench descends for the last time, then a positive magnetic pole generator and a negative magnetic pole generator of the magnetic flaw detection device are started, images at the moment are collected through a visual inspection device arranged on the measuring device platform, image information is transmitted to a display of a controller, and finally the positive magnetic pole generator and the negative magnetic pole generator of the magnetic flaw detection device are closed;
in the cylinder body inner diameter detection stage, the inclination driving mechanism on the measuring device platform drives the inclination swing of the inclination platform, so that the piezoelectric inner diameter measuring head is in contact with the inner wall of the cylinder after being inclined, the piezoelectric inner diameter measuring head detects the cylinder diameter at different positions of the inner wall of the cylinder body under the driving of the lifting workbench, and the detection result is transmitted back to the controller.
10. The engine block comprehensive testing method according to claim 9, characterized in that: the cylindricity of the inner diameter of the cylinder body can be measured in the detection of the inner diameter of the cylinder body, and the method comprises the following steps: firstly, measuring the maximum inner diameter of the cylinder body by using a piezoelectric inner diameter measuring head, positioning a lifting workbench at the height, and keeping the piezoelectric inner diameter measuring head in contact with the inner wall of the cylinder body; then an inner platform on the measuring device platform is controlled to rotate to drive the piezoelectric type inner diameter measuring head to rotate around the inner wall of the cylinder body, so that the piezoelectric type inner diameter measuring head measures the minimum cylinder diameter value, and the maximum cylindricity of the inner diameter of the cylinder body is obtained through calculation.
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