CN110544416A - Automatic evaluation machine for engine disassembly and assembly - Google Patents

Abstract

the invention discloses an automatic evaluation machine for engine disassembly and assembly, and mainly relates to the technical field of automatic assessment. Comprises a case module; the disassembly and assembly frame module comprises an operation plate which can stretch and slide relative to the inner bin, and the operation plate is provided with an installation panel for fixing the engine; the detection module comprises a detection plate fixed at the top of the inner bin, a lifting table capable of moving along three axes is arranged below the detection plate, a wheel disc is rotatably matched at the lower part of the lifting table, 3-8 torsion motors are arranged on the wheel disc along the circumferential direction of the wheel disc, and an output shaft of each torsion motor is arranged outwards along the radial direction of the wheel disc; and the evaluation module comprises a control module, and a time module, a storage module, an industrial camera, a dynamic torque sensor, a sleeve head, a motor set and a control button which are connected with the control module. The invention has the beneficial effects that: the engine disassembly and assembly device can realize standardized evaluation on proficiency, accuracy and integrity level in the engine disassembly and assembly process, has comprehensive and notarized conclusion, eliminates human interference factors, and has guiding significance on screening of technicians.

Description

Automatic evaluation machine for engine disassembly and assembly

Technical Field

The invention relates to the technical field of automatic assessment, in particular to an automatic evaluation machine for engine disassembly and assembly.

Background

For the training, recruitment and assessment links of mechanic repair technicians, the engine disassembly and assembly level of the technicians needs to be judged and evaluated. Particularly, when recruiting, a large number of evaluated persons need to be confronted at one time, and are unfamiliar, if evaluation judgment is required to be carried out on the operation of a technician. However, the disassembly and assembly of the engine are time-consuming, the evaluation points are many and complicated, and if the evaluation is carried out manually, a large amount of labor is occupied, the time consumption is long, and the realization is difficult.

Even if the technicians are evaluated, the evaluation technical points are observed by naked eyes and detected one by one, the evaluation results are difficult to realize standardization due to different levels and judgment standards of individuals of the evaluators, and the basis of transverse comparison is lacked, so that the technicians are difficult to screen in an auxiliary recruitment link.

disclosure of Invention

The invention aims to provide an automatic evaluation machine for engine disassembly and assembly, which can realize standardized evaluation on proficiency, accuracy and integrity level in the process of engine disassembly and assembly, has comprehensive notarization conclusion, eliminates human interference factors and has guiding significance for screening of technicians.

in order to achieve the purpose, the invention is realized by the following technical scheme:

automatic evaluation machine of engine dismouting includes:

The chassis module is provided with an inner bin with an opening at the front side;

The disassembly and assembly frame module comprises an operation plate which can stretch and slide relative to the inner bin, and the operation plate is provided with an installation panel for fixing an engine;

the detection module comprises a detection plate fixed at the top of the inner bin, a lifting table capable of moving along three axes is arranged below the detection plate, a wheel disc is rotationally matched at the lower part of the lifting table, 3-8 torsion motors are arranged on the wheel disc along the circumferential direction of the wheel disc, and an output shaft of each torsion motor is arranged outwards along the radial direction of the wheel disc;

the evaluation module comprises a control module, and a time module, a storage module, an industrial camera, a dynamic torque sensor, a sleeve head, a motor set and a control button which are connected with the control module;

The storage module is used for storing data;

The time module is used for tracking real-time and recording the time point of triggering the control button each time;

The motor group comprises motors for driving the operation panel to stretch and retract, controlling the three-axis stroke of the lifting platform and rotating the wheel disc;

the control button is arranged on the operation plate;

the industrial camera is fixed on the lifting table or the detection plate and used for taking images from the lower part when the operation plate is positioned in the inner bin;

The dynamic torque sensor is arranged between the sleeve head and the torque motor and used for obtaining the tightness torque value of the screw sleeved by the sleeve head;

The control module is used for controlling the operation of the motor set, controlling the industrial camera and the torsion motor to obtain evaluation data and comparing the obtained data.

Preferably, the control module is used for controlling the operation of the motor set, controlling the industrial camera and the torque motor to obtain evaluation data, and comparing the obtained data, and the control module is used for completing the following steps:

Step 1, an operation board extends out of an inner bin for an examinee to test the disassembly and assembly of an engine;

Step 2, when an operator detaches an engine assembly at each layer, presses down a control button, triggers the operating plate to retract into the inner bin, the lifting table is located at the middle position relative to the section of the inner bin, the industrial camera shoots to obtain a first photo corresponding to the layer, the lifting table resets, and the operating plate stretches out of the inner bin;

Step 3, repeating the step 2 until the disassembly is finished, pressing a control button for a long time, and triggering the control module to enter a program of an installation stage;

step 4, when an operator installs an engine component at each layer, the operator presses a control button to trigger the operation plate to retract into the inner bin, the lifting table is located at the central position relative to the section of the inner bin, the industrial camera takes a picture downwards, after a second picture corresponding to the layer is obtained, the second picture is compared with the first picture of the same layer, and distinguishing data is obtained to judge whether flaws exist or not and whether a missing part is not installed or not;

Step 5, judging the model and the position state of the tested screw according to the image of the industrial camera, controlling the wheel disc and the torsion motor to rotate, enabling the sleeve head with the model corresponding to the tested screw to be in a corresponding state downwards, controlling the motor set to drive the lifting platform to move to the position above the tested screw, enabling the sleeve head to be sleeved into the nut from top to bottom, controlling the torsion motor, obtaining the torsion value of the screw through the dynamic torsion sensor, and comparing the torsion value with a corresponding threshold value;

And 6, repeating the steps 4 and 5 until the installation is finished.

in steps 1 to 6, the time module records time data once per pressing of the control button.

preferably, the lower part of the inner bin is provided with a bottom plate, an L-shaped supporting plate is fixed on the front side of the operating plate, the supporting frame is arranged below the bottom plate, the operating plate is positioned above the bottom plate, and pulleys are mounted on the supporting plate;

A telescopic sliding rail is fixed on the bottom plate along the depth direction of the inner bin, a telescopic sliding table is connected onto the telescopic sliding rail in a sliding manner, and the telescopic sliding table is fixed on the bottom surface of the operating plate;

The telescopic screw rod is installed below the bottom plate, the extending direction of the telescopic screw rod corresponds to the depth of the inner bin, and a telescopic screw nut matched with the telescopic screw rod is arranged on the telescopic screw rod. The screw nut is fixed at the inner end of the supporting plate.

preferably, both sides and the inside edge of the operation panel are provided with baffles.

Preferably, the operating panel is fixed with the stand, the top of stand is equipped with the installation cover, the installation cover internal rotation is connected with the back shaft, the rotation of back shaft is controlled through control module, the left end of back shaft is fixed with rather than the vertically installation panel, the installation panel is used for fixed engine.

Preferably, an X-axis guide rail and an X-axis lead screw are respectively installed on two sides of the detection plate, an X-axis sliding block is matched on the X-axis guide rail in a sliding mode, an X-axis nut is matched on the X-axis lead screw, a sliding frame is matched on the detection plate in a sliding mode along the depth direction of the detection plate, and two ends of the sliding frame are fixedly connected with the X-axis sliding block and the X-axis nut respectively to achieve the inner and outer sliding of the sliding frame relative to the inner bin;

the sliding frame is provided with a Y-axis guide rail and a Y-axis lead screw which extend leftwards and rightwards along the length direction of the sliding frame, a Y-axis sliding block is matched on the Y-axis guide rail in a sliding mode, a Y-axis nut is matched on the Y-axis lead screw, a plane sliding table capable of being matched with the sliding frame in a left-right sliding mode is arranged below the sliding frame, the Y-axis nut and the Y-axis sliding block are fixed on the plane sliding table, and the plane sliding table can move relative to the inner section of the bin through the structure;

Downwardly extending has the crane on the plane slip table, the both sides of crane are fixed with Z axle track respectively, sliding fit has Z axle slip table on the Z axle track, install Z axle lead screw on the crane placed in the middle, the cooperation has Z axle screw on the Z axle lead screw, Z axle screw and Z axle slip table are all fixed on the elevating platform.

preferably, the device also comprises an accessory module, wherein the accessory module comprises a display screen, a camera and an illumination module,

The display screen is fixed above the chassis module in the middle;

The camera is arranged above the chassis module in the middle, and the angle of the camera is adjustable;

The lighting modules are mounted on the top and both sides of the chassis module.

Compared with the prior art, the invention has the beneficial effects that:

through this device, can realize examining comprehensively to the engine dismouting process of testee:

in the aspect of proficiency, the recording of the disassembly and assembly time of the evaluated person is realized by means of the recording of the disassembly and assembly time nodes of all levels, the overall time is grasped, the time period corresponds to each level, the time consumption of each part of components of the evaluated person is recorded, and accordingly a more targeted proficiency evaluation result is obtained.

In terms of accuracy, the tightening degree of the bolt is measured through the automatically aligned sleeve head to obtain corresponding torque force, the corresponding torque force is compared with the corresponding torque force range of the bolt to obtain a large number of torque force value judgment results, and therefore a comprehensive and sufficient data base is obtained for the operation precision of an evaluated person.

And in the aspect of completeness, the difference of the corresponding layers before and after is obtained by comparing the pictures of all layers in the mounting stage with the pictures of all layers in the dismounting stage, and whether the damaged parts exist or the missing parts are not mounted is judged according to the difference. The comparison method is particularly directed at the integrity of the disassembly and assembly process of the same evaluated person, so that the damage influence of the previous evaluated person on the engine and the damage interference of the engine are eliminated, and the assessment fairness is ensured. Compare manual observation simultaneously, more high efficiency and comprehensive can not miss the problem.

therefore, through the deconstruction, the device can realize comprehensive and systematic assessment of the engine disassembly and assembly technical points, and eliminates multi-party interference factors through quantizing and standardizing the assessment points, so that the assessment results can have guiding significance for personnel screening and assessment, and can form a transverse comparison basis in the industry.

Drawings

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

figure 2 is a side view of the present invention.

Fig. 3 is a schematic view of the internal structure of the present invention.

fig. 4 is a schematic front view of the present invention.

FIG. 5 is a schematic diagram of the structure of the detection module of the present invention.

fig. 6 is a partial structural schematic diagram of the present invention.

fig. 7 is a partial structural schematic of the present invention.

fig. 8 is a partial structural schematic of the present invention.

reference numerals shown in the drawings:

1. a chassis module; 2. a base plate; 3. an operation panel; 4. a support plate; 5. a telescopic slide rail; 6. a telescopic sliding table; 7. a telescopic lead screw; 8. a pulley; 9. a baffle plate; 10. a column; 11. installing a sleeve; 12. a support shaft; 13. Installing a panel; 14. a transverse notch; 15. an inclined notch; 16. installing a bolt; 17. detecting a plate; 18. An X-axis guide rail; 19. an X-axis lead screw; 20. a carriage; 21. a Y-axis guide rail; 22. a Y-axis lead screw; 23. a planar sliding table; 24. a lifting frame; 25. a Z-axis track; 26. a Z-axis sliding table; 27. a Z-axis lead screw; 28. a lifting platform; 29. a wheel disc; 30. a torque motor; 31. a sleeve head; 32. a dynamic torque sensor; 33. a control button; 34. a display screen; 35. a camera is provided.

Detailed Description

the invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Example (b): automatic evaluation machine for engine disassembly and assembly

The disassembly and assembly of the engine are the prerequisite for maintaining and repairing the engine. Particularly, the engine is restored to the original installation level as much as possible, abrasion is avoided, and sealing is guaranteed, so that the most important core skills of steam repair and steam manufacturers are provided. The engine disassembly and assembly needs to be evaluated in a standardized manner no matter the training institution examines trainees, enterprises examine employees, and enterprises evaluate recruited objects. However, the disassembly and assembly of the engine usually take a long time, and the technical points to be examined are very many, if people stare at the engine, the disassembly and assembly of two or three people only occupy at least one examinee, which is very labor-consuming, and the manual evaluation has a great difference in the measured results due to the different standards and levels of each person, which is affected by too many subjective judgments, and is very unfavorable for the standardization of the disassembly and assembly level evaluation of the engine. Based on the above consideration, we designed the present apparatus in order to reduce the evaluation cost and the evaluation standard. Under the prerequisite, we have analyzed the main technical point of engine dismouting, deconstructed it as follows:

1) time: not only the total time is included, but also a more comprehensive and specific evaluation result can be obtained for the disassembly and assembly proficiency of the examinee at different parts if the time consumed in each stage of disassembly and assembly is deconstructed.

2) the sequence is as follows: the order of dismouting, whether the dismouting order of each subassembly is in compliance etc. when concrete installation, the order of installation, including the installation order of different bolts on the same aspect, all are very critical and important.

3) Torsion: the engine is a power output mechanism, the stability and the sealing performance of connection among all the integral components of the engine are very important to the operation of the device, and the engine needs to correspond to a standard torsion range, so that the screw installation in a reasonable torsion range is necessary skill for automobile repair.

4) loss/loss: the integrity of each internal component is ensured in the whole dismounting process, and no parts are lost.

the above-mentioned skill points are difficult to observe, test and judge by naked eyes and manpower. For example, the loss of internal components during assembly and disassembly requires people to pay attention to the assembly and disassembly process, because once the assembly is completed, the exposed parts are limited, and even if problems exist, the problems can be covered in the engine and are difficult to find. In addition, some examinees may hide neglected components in order to prevent finding, which brings great workload to the examinees and often makes it difficult to find problems. For example, in the aspect of torsion, if the torsion is required to be checked to be standard, the examiners need to check the torsion one by one, so that the disassembly and assembly time is greatly prolonged, the situation that the torsion cannot be finished all day long is likely to happen, and a large amount of workload (including check and record) is brought to the examiners, so that the situation is that effective check is difficult to achieve for the disassembly and assembly level evaluation of the engine, and many units, enterprises and schools can only be confused, and real standardized check cannot be achieved at all.

the specific structure based on the above technical structure and the original design embodiment is as follows:

The box type complete machine is mainly a box type complete machine, and the box type complete machine is distinguished according to functions and comprises the following modules for convenience in description:

1) Case module 1

the case module 1 mainly forms an external case body of a case-type complete machine and plays a role in protecting and matching internal components. And is used to mount the electronic components.

The chassis module 1 is provided with a power line for electrically connecting with a power supply and supplying power to the following components.

the whole case module 1 is of a box structure with a front-side opening, a rectangular inner bin is arranged on the front side of the case module 1, the top of the inner bin is used for installing a detection module, and the bottom of the inner bin is used for installing a dismounting frame module.

The bottom in interior storehouse is equipped with bottom plate 2, but the storehouse telescopic connection in relative is realized with the cooperation of bottom plate 2 to the dismouting frame module.

2) Detachable rack module

the operation panel 3, the operation panel 3 mainly used provides operation platform for the person who is surveyed.

an L-shaped supporting plate 4 is fixed on the front side of the operating plate 3, the supporting frame is arranged below the bottom plate 2, and the operating plate 3 is located above the bottom plate 2. The operating panel 3 is matched with the bottom plate 2 in a telescopic mode, so that the inner bin can be retracted, and the inner bin can be extended out of the machine box module 1. The specific matching structure is as follows:

The bottom plate 2 is gone up and is fixed with flexible slide rail 5 along the direction of depth in interior storehouse, and flexible slide rail 5 is two and fixes side by side about relative bottom plate 2 in this example, sliding connection has flexible slip table 6 on flexible slide rail 5, flexible slip table 6 is fixed on the bottom surface of operation panel 3.

the telescopic screw 7 is installed below the bottom plate 2, the extending direction of the telescopic screw 7 corresponds to the depth of the inner bin, and a telescopic screw matched with the telescopic screw 7 is arranged on the telescopic screw 7. The nut is fixed at the inner end of the support plate 4.

install pulley 8 on the backup pad 4 for the bearing of auxiliary stay dismouting frame module protects flexible slide rail 5 and flexible slip table 6.

The both sides of operation panel 3 and inboard border all are equipped with baffle 9, prevent that spare part and instrument from falling into the storehouse.

The operating panel 3 is fixed with a stand column 10, the top end of the stand column 10 is provided with a mounting sleeve 11, a supporting shaft 12 penetrates through the mounting sleeve 11, and the supporting shaft 12 can rotate relative to the mounting sleeve 11 and can rotate controllably. The control method of the present example is that a turning button is arranged on the right side of the upright post 10, and the support shaft 12 can rotate half a turn relative to the mounting sleeve 11 after being pressed down, so that the engine can be turned upside down.

the left end of back shaft 12 is fixed with rather than vertically installation panel 13, be equipped with horizontal notch 14 and slope notch 15 on the installation panel 13, horizontal notch 14 is last, and slope notch 15 is under, and inclination 45 degrees, horizontal notch 14 and slope notch 15 are two and bilateral symmetry respectively and set up, all are equipped with mounting bolt 16 in the notch for to the fixed of the bottom one side of engine, thereby fix the engine that will need the dismouting on installation panel 13. The mounting point positions are arranged corresponding to commonly used fixing points, and the notch can adapt to engines of different sizes. And the engine is evaluated by matching the waste engine.

3) detection module

The detection device comprises a detection plate 17, wherein the detachable detection plate 17 is fixedly arranged at the top of an inner bin, and the detection plate 17 is adaptive to the section of the inner bin and can be detached for independent maintenance.

the two sides of the detection plate 17 are respectively provided with an X-axis guide rail 18 and an X-axis lead screw 19, an X-axis sliding block is matched on the X-axis guide rail 18 in a sliding mode, an X-axis nut is matched on the X-axis lead screw 19, a sliding frame 20 is matched on the detection plate 17 in a sliding mode along the depth direction of the detection plate, and two ends of the sliding frame 20 are fixedly connected with the X-axis sliding block and the X-axis nut respectively to achieve the purpose that the sliding frame 20 slides inside and outside relative to the inner bin.

extend about its length direction is equipped with on the carriage 20Y axle guide rail 21 and the Y axle lead screw 22 of extending, sliding fit has Y axle slider on the Y axle guide rail 21, the cooperation has Y axle screw on the Y axle lead screw 22, carriage 20 below is equipped with can rather than horizontal sliding fit's plane slip table 23, Y axle screw and Y axle slider are fixed on plane slip table 23, and the relative storehouse inner section's of plane slip table 23 removal is realized to above-mentioned structure.

Downwardly extending has crane 24 on the plane slip table 23, crane 24's both sides are fixed with Z axle track 25 respectively, sliding fit has Z axle slip table 26 on Z axle track 25, install Z axle lead screw 27 on the crane 24 between two parties, the cooperation has Z axle screw on the Z axle lead screw 27, there is elevating platform 28 along direction of height sliding fit on crane 24, Z axle screw and Z axle slip table 26 are all fixed on elevating platform 28.

A wheel disc 29 is rotatably matched on the lifting platform 28, and the rotation of the wheel disc 29 and the detection plate 17 is controllable.

five torque motors 30 are installed on the wheel disc 29 along the circumferential direction, and output shafts of the torque motors 30 are arranged outwards along the radial line of the wheel disc 29.

4) Evaluation module

the system is used for obtaining and recording the disassembled and assembled standardized evaluation data and comprises the following components:

the device comprises a control module, a time module, a storage module, a communication module, an industrial camera, a dynamic torque sensor 32, a sleeve head 31, a motor set and a control button 33;

the control button 33 is arranged at the lower right corner of the operating panel 3, and is triggered by pressing each time by an examinee to perform one round of detection and evaluation and record data.

the motor set comprises motors which are used for driving the telescopic lead screw 7, the supporting shaft 12 to rotate, the X-axis lead screw 19, the Y-axis lead screw 22, the Z-axis lead screw 27 and the wheel disc 29 to rotate, and the motors are controlled by the control module to realize the control of the rotation of the components.

The time module is a perpetual calendar module, and a clock chip connected with the control module is used for corresponding to real-time and recording the time corresponding to each button pressing.

the industrial camera is fixed on the lifting platform 28 and used for taking a picture from the lower part, when the picture is taken, the lifting platform 28 is located at the highest point, and the plane sliding platform 23 is located at the center of the cross section of the inner bin. A more positive and comprehensive underlying image can be obtained.

Dynamic torque sensor 32 connects between cover barrel head 31 and torque motor 30, dynamic torque sensor 32's connecting axle one end and torque motor 30's output shaft, one end and cover barrel head 31 are connected, and cover barrel head 31 divide into different models according to the screw model that adapts to, in this example, can load five different models cover barrel head 31 simultaneously, and the adaptation carries out the torsion measurement to five kinds of screws. Data obtained through the dynamic torque sensor 32 is fed back to the control module and the storage module, whether the data is in a standard range or not is judged through the control module, and actual data and a judgment result are recorded through the storage module.

The storage module is used for recording the obtained data such as the picture information, the torsion information, the judgment result and the like.

The communication module is used for carrying out wireless data transmission on the obtained data. And data sharing with the mobile terminal or the background terminal is realized.

The control module is used for:

a) The method comprises the steps of comparing photos shot by an industrial camera in the installation process with photos shot by the industrial camera in the disassembly process, and specifically comparing the photos on the same layer or step in the front-back direction, so that the problems of damage, part missing and the like in the installation on the same layer are judged.

b) the tightening torque of each screw obtained by the dynamic torque sensor 32 is measured, and the obtained torque data is compared with a preset threshold value, wherein the preset torque threshold value is a standard torque range of the screw at the position.

c) the operation of the motor set, the torque motor 30, the dynamic torque sensor 32, the industrial camera and the like is controlled, so that the components complete the following steps:

Step 1, the operation board 3 slides out of the inner bin for an examined person to test the disassembly and assembly of the engine;

Step 2, when an operator detaches one layer of engine assembly, presses down the control button 33, triggers the operation panel 3 to retract into the inner bin, the sliding frame 20 slides to the front and back middle, the plane sliding table 23 slides to the left and right middle, the industrial camera takes a picture downwards to obtain a first picture corresponding to the layer, and after the plane sliding table 23 and the sliding frame 20 are reset, the operation panel 3 slides out of the inner bin;

Step 3, repeating the step 2 until the disassembly is finished, pressing the control button 33 for a long time, and triggering the control module to enter a program of an installation stage;

Step 4, when an operator installs an engine assembly at each layer, the operator presses the control button 33 to trigger the operation plate 3 to retract into the inner bin, the sliding frame 20 slides to the front and back middle parts, the plane sliding table 23 slides to the left and right middle parts, the industrial camera takes a picture downwards, after a second picture corresponding to the layer is obtained, the second picture is compared with the first picture of the same layer, and whether flaws exist or not and a missing part is not installed is judged according to different points;

Step 5, according to the image of the industrial camera, automatically sleeving a sleeve head 31 into a nut of a tested screw, specifically, rotating a wheel disc 29 to enable the sleeve head 31 with the type corresponding to the nut of the tested screw to be downward, controlling a torque motor 30 to rotate to enable a sleeve to be positioned at an angle corresponding to the nut, enabling the sleeve head to be sleeved into the nut from the upper side, enabling a plane sliding table 23 to be positioned above the tested screw by matching an X-axis lead screw 19 and a Y-axis lead screw 22, descending a lifting table 28 to enable the sleeve head 31 to be sleeved into the nut corresponding to the screw, rotating the torque motor 30, obtaining a torque value of the screw through a dynamic torque sensor, and comparing the torque value with a corresponding threshold value;

And 6, repeating the steps 4 and 5 until the installation is finished.

In steps 1 to 6, the time module records time data once per one press of the control button 33.

5) Accessory module

the accessory module is primarily for auxiliary and enhanced functions, and primarily includes: display 34, camera 35, lighting module, etc., and is not limited to such accessories.

The lighting module is arranged at the top of the case module 1 and illuminates downwards to add a light source. x is the number of

The display screen 34 module is vertically fixed above the bin opening, and shows the using method and the assessment requirements of the mechanism to an operator through pictures or videos. The assessment results can also be displayed.

Camera 35 sets up in the storehouse mouth top setting between two parties, and the angle can be adjusted, can record operator's dismouting process. Viewing and archiving as needed.

Other additional components such as a sound module can be added to improve the performance of the mechanism.

Through foretell structure, can realize the comprehensive examination to the testee dismouting process, realize comprehensive, systematic examination to the technical point of engine dismouting, quantify and standardized the technical point of engine dismouting, specifically do:

the time for assembling and disassembling each stage of the engine is comprehensively recorded so as to carry out auxiliary analysis on the operation proficiency of an operator;

The comparison of getting for instance of each stage around the engine dismouting has realized in the person's of being examined installation, whether have the neglected part, damage and carry out efficient inspection and comparison, through the photo that corresponds the aspect in with the installation with the photo contrast when dismantling, avoided the engine itself to exist, or because last user causes, the interference of wearing and tearing and the incomplete scheduling problem of subassembly. Because the device is repeatedly used by a plurality of people, and the engine is also a used waste engine, the factor must be eliminated to ensure the justice of the examined person in the aspect of installation integrity. This comparison effectively eliminates this interference. The justice of the examination is ensured. Meanwhile, compared with manual observation, the problem can be accurately and efficiently found out through picture comparison;

The accurate torsion value of the tightening degree of each screw is obtained through the dynamic torque sensor 32, and is compared with the standard torsion value to obtain an accurate torsion evaluation condition, so that a large number of torsion evaluation conditions are integrated, and a relatively good evaluation result can be obtained on the operation precision of an examinee;

through the specific evaluation system, comprehensive, quantitative and detailed evaluation results can be obtained for the level of the evaluated person, the conclusion is fair, reasonable and comprehensive, the interference factors are few, once the evaluation system is put into application, the evaluation system is bound to become the most authoritative evaluation item of the operation, and the transverse comparison and progress in the industry can be realized.

Claims (8)

1. Automatic evaluation machine of engine dismouting which characterized in that includes:

the chassis module is provided with an inner bin with an opening at the front side;

the disassembly and assembly frame module comprises an operation plate which can stretch and slide relative to the inner bin, and the operation plate is provided with an installation panel for fixing an engine;

the detection module comprises a detection plate fixed at the top of the inner bin, a lifting table capable of moving along three axes is arranged below the detection plate, a wheel disc is rotationally matched at the lower part of the lifting table, 3-8 torsion motors are arranged on the wheel disc along the circumferential direction of the wheel disc, and an output shaft of each torsion motor is arranged outwards along the radial direction of the wheel disc;

The evaluation module comprises a control module, and a time module, a storage module, an industrial camera, a dynamic torque sensor, a sleeve head, a motor set and a control button which are connected with the control module;

The storage module is used for storing data;

The time module is used for tracking real-time and recording the time point of triggering the control button each time;

the motor group comprises motors for driving the operation panel to stretch and retract, controlling the three-axis stroke of the lifting platform and rotating the wheel disc;

the control button is arranged on the operation plate;

the industrial camera is fixed on the lifting table or the detection plate and used for taking images from the lower part when the operation plate is positioned in the inner bin;

The dynamic torque sensor is arranged between the sleeve head and the torque motor and used for obtaining the tightness torque value of the screw sleeved by the sleeve head;

the control module is used for controlling the operation of the motor set, controlling the industrial camera and the torsion motor to obtain evaluation data and comparing the obtained data.

2. the automatic engine disassembly and assembly evaluation machine of claim 1, wherein the control module is used for controlling the operation of the motor set, controlling the industrial camera and the torque motor to obtain evaluation data, and comparing the obtained data, and the control module is used for completing the following steps:

Step 1, an operation board extends out of an inner bin for an examinee to test the disassembly and assembly of an engine;

Step 2, when an operator detaches an engine assembly at each layer, presses down a control button, triggers the operating plate to retract into the inner bin, the lifting table is located at the middle position relative to the section of the inner bin, the industrial camera shoots to obtain a first photo corresponding to the layer, the lifting table resets, and the operating plate stretches out of the inner bin;

step 3, repeating the step 2 until the disassembly is finished, pressing a control button for a long time, and triggering the control module to enter a program of an installation stage;

Step 4, when an operator installs an engine component at each layer, the operator presses a control button to trigger the operation plate to retract into the inner bin, the lifting table is located at the central position relative to the section of the inner bin, the industrial camera takes a picture downwards, after a second picture corresponding to the layer is obtained, the second picture is compared with the first picture of the same layer, and distinguishing data is obtained to judge whether flaws exist or not and whether a missing part is not installed or not;

Step 5, judging the model and the position state of the tested screw according to the image of the industrial camera, controlling the wheel disc and the torsion motor to rotate, enabling the sleeve head with the model corresponding to the tested screw to be in a corresponding state downwards, controlling the motor set to drive the lifting platform to move to the position above the tested screw, enabling the sleeve head to be sleeved into the nut from top to bottom, controlling the torsion motor, obtaining the torsion value of the screw through the dynamic torsion sensor, and comparing the torsion value with a corresponding threshold value;

And 6, repeating the steps 4 and 5 until the installation is finished.

3. the automatic engine attachment/detachment evaluation machine according to claim 2, wherein the time module records time data every time the control button is pressed in steps 1 to 6.

4. the automatic engine assembly and disassembly evaluation machine of claim 1, wherein a bottom plate is arranged at the lower part of the inner bin, an L-shaped support plate is fixed at the front side of the operating plate, the support frame is arranged below the bottom plate, the operating plate is positioned above the bottom plate, and pulleys are arranged on the support plate;

A telescopic sliding rail is fixed on the bottom plate along the depth direction of the inner bin, a telescopic sliding table is connected onto the telescopic sliding rail in a sliding manner, and the telescopic sliding table is fixed on the bottom surface of the operating plate;

the telescopic screw rod is installed below the bottom plate, the extending direction of the telescopic screw rod corresponds to the depth of the inner bin, and a telescopic screw nut matched with the telescopic screw rod is arranged on the telescopic screw rod. The screw nut is fixed at the inner end of the supporting plate.

5. The automatic engine attachment/detachment evaluation machine according to claim 4, wherein the operation plate is provided with a baffle on both sides and an inner edge.

6. The automatic engine assembly and disassembly evaluation machine of claim 1, wherein a column is fixed on the operation plate, a mounting sleeve is arranged at the top end of the column, a support shaft is rotatably connected in the mounting sleeve, the rotation of the support shaft is controlled by the control module, a mounting panel perpendicular to the support shaft is fixed at the left end of the support shaft, and the mounting panel is used for fixing the engine.

7. the automatic engine attachment/detachment evaluation machine according to claim 1,

an X-axis guide rail and an X-axis lead screw are respectively installed on two sides of the detection plate, an X-axis sliding block is matched on the X-axis guide rail in a sliding mode, an X-axis nut is matched on the X-axis lead screw, a sliding frame is matched on the detection plate in a sliding mode along the depth direction of the detection plate, and two ends of the sliding frame are respectively fixedly connected with the X-axis sliding block and the X-axis nut, so that the sliding frame can slide inside and outside relative to the inner bin;

The sliding frame is provided with a Y-axis guide rail and a Y-axis lead screw which extend leftwards and rightwards along the length direction of the sliding frame, a Y-axis sliding block is matched on the Y-axis guide rail in a sliding mode, a Y-axis nut is matched on the Y-axis lead screw, a plane sliding table capable of being matched with the sliding frame in a left-right sliding mode is arranged below the sliding frame, the Y-axis nut and the Y-axis sliding block are fixed on the plane sliding table, and the plane sliding table can move relative to the inner section of the bin through the structure;

downwardly extending has the crane on the plane slip table, the both sides of crane are fixed with Z axle track respectively, sliding fit has Z axle slip table on the Z axle track, install Z axle lead screw on the crane placed in the middle, the cooperation has Z axle screw on the Z axle lead screw, Z axle screw and Z axle slip table are all fixed on the elevating platform.

8. the automatic engine disassembly and assembly evaluation machine of claim 1, further comprising an accessory module, wherein the accessory module comprises a display screen, a camera, and an illumination module,

The display screen is fixed above the chassis module in the middle;

The camera is arranged above the chassis module in the middle, and the angle of the camera is adjustable;

the lighting modules are mounted on the top and both sides of the chassis module.