CN113432508B - Inspection device and method for quickly eliminating size errors and quickly clamping large-scale lubricating oil tank - Google Patents
Inspection device and method for quickly eliminating size errors and quickly clamping large-scale lubricating oil tank Download PDFInfo
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- CN113432508B CN113432508B CN202110699953.1A CN202110699953A CN113432508B CN 113432508 B CN113432508 B CN 113432508B CN 202110699953 A CN202110699953 A CN 202110699953A CN 113432508 B CN113432508 B CN 113432508B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
Abstract
The invention discloses a device and a method for rapidly eliminating dimension errors and rapidly clamping a large-sized lubricating oil tank. The invention solves the problems of heavy product weight and large volume of the large-scale oil tank, has simple and reliable positioning, effectively eliminates the influence caused by the tolerance (error) of the mounting hole on the large-scale oil tank, and has simple and convenient operation.
Description
Technical Field
The invention relates to a device and a method for checking outline dimensions of a large-size oil tank product rapidly clamped, belongs to the technical field of aviation airborne equipment checking process equipment, and particularly relates to a structure for rapidly eliminating installation dimension errors and rapid clamping of a large-size oil tank, and a structure and a method for checking a linear reciprocating surface and a rotating surface.
Background
The large-scale lubricating oil tank is an important accessory of an aircraft lubricating oil system, the broken line in fig. 1 and 2 is the outline of the large-scale lubricating oil tank, the large-scale lubricating oil tank is a casting piece with complex modeling, and due to the small installation space, reasonable gaps between the large-scale lubricating oil tank and adjacent accessories are required to be ensured before installation, so that the outline must be inspected, and meanwhile, the product is huge in size and heavy in weight, and quick clamping and quick inspection can be realized.
Because the large-scale lubricating oil tank test piece is heavy in weight, large in size and difficult to move, the installation fixing surface of the installation hole is positioned in the main body semi-enclosed structure (as shown in fig. 12, the semi-enclosed structure is a structure with two side surfaces of the large-scale lubricating oil tank extending outwards, the structure is provided with the installation hole, the structure is not completely enclosed, and an opening for inserting the upper end of the fixing seat is reserved), when the fixing seat is inserted into the semi-enclosed structure, the situation that the upper end of the fixing seat cannot be observed visually from the outside of the semi-enclosed structure due to the shielding of the semi-enclosed structure, the large-scale lubricating oil tank is required to be stably fixed on the inspection device during inspection, and in view of the large-scale lubricating oil tank is fixed in a mode of simulating a real fixing seat on an airplane, namely as shown in fig. 12, the fixing seat is inserted into the semi-enclosed structure, and then screwed-in type fixing pins (also called screwed-in type locating pins) are encountered, the following problems are:
firstly, after a large-sized oil tank is processed, the positions of four mounting holes on the surface of the large-sized oil tank are error, so that the large-sized oil tank, a fixed seat and a screw-in type fixing pin cannot be assembled at one time, and the positions among the large-sized oil tank, the fixed seat and the screw-in type fixing pin are required to be finely adjusted with high probability;
secondly, the installation fixing surface between the screw-in fixing pin and the fixing seat as well as the installation hole of the large-scale lubricating oil tank is positioned in the semi-surrounding structure, and cannot be directly observed from the outside, and only the continuous attempt can be relied on, so that the practical assembly is realized by firstly inserting the upper end of the fixing seat into the semi-surrounding structure, then repeatedly attempting to screw the screw-in fixing pin into the installation hole until the screw-in fixing pin simultaneously passes through the installation hole and the fixing seat, at the moment, the assembly among the three is completed, and finally, the connection position of the lower end of the fixing seat is adjusted (equivalent to the position fixing of the upper end of the fixing seat which is completed firstly, and then the position of the lower end of the fixing seat is finely adjusted), but the method has two defects, namely, firstly, the efficiency is low, the four installation holes, the four fixing seats and the four screw-in fixing seats need to be independently adjusted in groups, the time is very much, and the connection position of the lower ends of the fixing seats in the rest one group or two groups cannot be continuously adjusted (beyond the error design range) after three groups or two groups are assembled, and the re-operation is necessary; secondly, potential safety hazards exist, and the connecting position of the lower end of the fixing seat can be finely adjusted only by keeping the suspended state of the large-scale lubricating oil tank in the whole process of assembly and adjustment, so that the operation is dangerous in view of the weight and the volume of the large-scale lubricating oil tank.
Based on the above problems, the inspection device and method using the simulated real assembly structure can seriously affect the inspection process, for example, the front and rear fixing seats for fixing four mounting holes on the inspection device cannot be (or are difficult to realize) fine-tuned in size to meet the size errors of the four mounting holes on the test piece, so that the efficiency is low, the mounting time is too long, the actual production needs are difficult to meet, and the assembly influence caused by the size errors needs to be eliminated quickly by one device, so that the production auxiliary time is shortened. In addition, the inspection device is required to complete the inspection of the length, width, height and an arc surface on the large-scale lubricating oil tank at the same time, and how to arrange the inspection device can ensure the inspection to be rapid, lighten the labor intensity of operators and ensure the inspection accuracy is a great difficulty.
Disclosure of Invention
The invention aims to provide a device and a method for rapidly eliminating size errors and rapidly clamping a large-sized lubricating oil tank, which can realize rapid clamping of the large-sized lubricating oil tank, eliminate clamping and adjustment difficulty caused by four mounting hole tolerances (errors), and can realize detection of the outline size and the outline of an arc surface of the large-sized lubricating oil tank in one set of device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the large-scale lubricating oil tank comprises an arc-shaped surface and four mounting holes positioned at two sides of the arc-shaped surface, the mounting holes are positioned in a semi-surrounding structure of the surface of the large-scale lubricating oil tank, the inspection device comprises,
a base;
the linear inspection device is positioned on the upper end face of the base and comprises an inspection template assembly and a linear guide rail, an opening area capable of accommodating the maximum section outline of the large-scale lubricating oil tank is formed in the inspection template assembly, the opening area corresponds to the arc-shaped surface of the large-scale lubricating oil tank, the inspection template assembly is connected to the linear guide rail in a sliding manner, and the linear guide rail is arranged along the width direction of the large-scale lubricating oil tank;
the rotation checking device is positioned on the upper end face of the base and comprises a sample plate and a supporting seat, one end of the sample plate is rotatably connected to the supporting seat, the other end of the sample plate is a free end, and the rotation axis of the sample plate is parallel to the upper end face of the base;
the rapid clamping device is arranged on the upper end face of the base and positioned at the outer sides of the starting point and the end point of the sliding path of the inspection template assembly, namely, the starting point and the end point of the sliding path of the inspection template assembly are connected to obtain a path line, the rapid clamping device is positioned at the outer sides of the two end points of the path line, or the path line is positioned in the rapid clamping device, the rapid clamping device comprises a positioning clamping support a, four positioning pins, two positioning clamping supports b, a positioning clamping support c and a positioning support, and the surface of the positioning pins is provided with a positioning surface;
the positioning clamping support a, the positioning clamping support b and the positioning clamping support c are fixedly connected to the upper end face of the base and correspond to the positions of mounting holes in the large-scale lubricating oil tank one by one, and the distances between the positioning clamping support a and the positioning clamping support c and the distances between the two positioning clamping supports b are all such that when the large-scale lubricating oil tank is placed on the upper end face of the base and the positions of the mounting holes correspond to the positioning clamping support a, the positioning clamping support b and the positioning clamping support c one by one, the positioning clamping support a, the positioning clamping support b, the positioning clamping support c and the semi-surrounding structure at the mounting holes of the large-scale lubricating oil tank are in non-contact;
the positioning clamping support a and the positioning clamping support c are provided with kidney-shaped holes for positioning pin shafts, and the two positioning clamping supports b are provided with round holes for positioning pin shafts.
Alternatively, the inspection template assembly comprises a first template, a second template and a third template which are sequentially connected end to end, wherein no connection exists between the first template and the third template, an opening is formed between the first template and the third template, the lower end face of the first template corresponds to the maximum contour of the upper end face of the large-scale lubricating oil tank, the side surface of the second template corresponds to the maximum contour of the side surface of the large-scale lubricating oil tank in the width direction, and the upper surface of the third template corresponds to the maximum contour of the lower end face of the large-scale lubricating oil tank.
Alternatively, one side of the second template is slidably connected to the linear guide rail through a slider, and one side of the third template is slidably connected to the linear guide rail through a slider.
Alternatively, the free end of the template forms a curved surface that corresponds to the maximum profile of the arcuate surface of the large lubricant tank as the template rotates about the axis of rotation.
Alternatively, the positioning pin shaft comprises a first pin shaft section arranged in the mounting hole and a second pin shaft section arranged in the kidney-shaped hole or the round hole, and the surface of the second pin shaft section is a cylindrical surface serving as a positioning surface.
Further, the inspection device for quickly eliminating the dimension error and quickly clamping the large-scale lubricating oil tank also comprises a third pin shaft section and a limiting section,
the third pin shaft section is connected with the second pin shaft section, and the length of the third pin shaft section is that when the first pin shaft section is arranged in the mounting hole and the second pin shaft section is arranged in the kidney-shaped hole or the round hole, the third pin shaft section is positioned outside the positioning clamping support a, the positioning clamping support b and the positioning clamping support c;
the limiting section is positioned between the first pin shaft section and the second pin shaft section, and when the first pin shaft section is completely inserted into the mounting hole, the end face of the limiting section is in contact with the surface of the semi-surrounding structure.
As an option, the upper end surface of the positioning and clamping support a is provided with a 1/2 waist-shaped hole and a threaded hole, the upper end of the positioning and clamping support a is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 waist-shaped hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning and clamping support a, the two 1/2 waist-shaped holes form a complete waist-shaped hole;
the upper end face of the positioning clamping support c is provided with a 1/2 waist-shaped hole and a threaded hole, the upper end of the positioning clamping support c is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 waist-shaped hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning clamping support c, the two 1/2 waist-shaped holes form a complete waist-shaped hole;
the upper end face of the positioning clamping support b is provided with a 1/2 round hole and a threaded hole, the upper end of the positioning clamping support b is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 round hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning clamping support b, the two 1/2 round holes form a complete round hole.
Alternatively, the rotation inspection device further comprises a bearing, a connecting block, a cover plate, a rotating shaft and a supporting seat, wherein the bearing is fixed in the connecting block, the rotating shaft is sleeved in the bearing, one end of the sample plate is connected with the rotating shaft through the cover plate, and the connecting block is fixed on the supporting seat.
The inspection method for quickly eliminating the dimension error and quickly clamping the large-scale lubricating oil tank adopts the inspection device with the upper pressing plate, and the inspection method comprises the following steps of,
the method comprises the steps of firstly, lifting a large-scale lubricating oil tank to the upper part of an inspection device, swinging the large-scale lubricating oil tank upwards according to an arc surface and on the same side as the rotary inspection device, and screwing four positioning pins into mounting holes in a semi-surrounding structure respectively to ensure that the positioning surfaces of the positioning pins are exposed out of the semi-surrounding structure;
step two, rotating to open the upper pressing plates on the positioning clamping support a, the positioning clamping support c and the positioning clamping support b, adjusting the positions of the large-scale lubricating oil tanks, ensuring that the exposed positioning surfaces of the four positioning pins are respectively aligned with the 1/2 waist-shaped holes of the positioning clamping support a and the positioning clamping support c and the 1/2 round holes of the positioning clamping support b in the quick clamping device, moving the large-scale lubricating oil tanks downwards, ensuring that the positioning surfaces of the two positioning pins are firstly placed into the 1/2 round holes of the positioning clamping support b, then placing the positioning surfaces of the rest two positioning pins into the 1/2 waist-shaped holes of the positioning clamping support a and the positioning clamping support c, finely adjusting the positions of the four positioning pins, and rotating to close the four upper pressing plates after the positioning pins are axially screwed in place, and inserting locking bolts into threaded holes to finish quick clamping and size error elimination of the large-scale lubricating oil tanks;
step three, moving the linear inspection device along the linear guide rail, and observing whether the inspection template component interferes with the outer contour of the large-scale lubricating oil tank in the moving process;
and step four, rotating the rotary inspection device to observe whether the free end of the sample plate interferes with the arc-shaped surface of the large-scale lubricating oil tank.
As a second option, the difference is that the positioning pins in the second step are put in different orders, specifically:
and secondly, rotating to open the upper pressing plates on the positioning clamping support a, the positioning clamping support c and the positioning clamping support b, adjusting the positions of the large lubricating oil tanks, ensuring that the exposed positioning surfaces of the four positioning pins are respectively aligned with the 1/2 waist-shaped holes of the positioning clamping support a, the positioning clamping support c and the 1/2 round holes of the positioning clamping support b in the quick clamping device, moving the large lubricating oil tanks downwards, ensuring that the positioning surfaces of the two positioning pins are firstly placed in the positioning clamping support a and the 1/2 waist-shaped holes of the positioning clamping support c, finely adjusting the positions of the large lubricating oil tanks, then placing the positioning surfaces of the remaining two positioning pins in the 1/2 round holes of the positioning clamping support b, finely adjusting the positions of the four positioning pins, and rotating to close the four upper pressing plates after the positioning pins are axially screwed in place, and inserting locking bolts into threaded holes to finish quick clamping and size error elimination of the large lubricating oil tanks.
When the errors of the four mounting holes of the large-scale lubricating oil tank are large, the positioning surface of the positioning pin shaft is mounted by adopting the second method, because the waist-shaped holes are firstly placed into the positioning pin shaft with enough size allowance to finely adjust the position of the positioning pin shaft in the round hole; when the errors of the four mounting holes of the large-sized lubricating oil tank are smaller, the positioning surface of the positioning pin shaft is mounted by adopting the first method, because the errors of the four mounting holes are smaller, the positioning can be directly completed when the four mounting holes are firstly placed in the round holes and then placed in the kidney-shaped holes, fine adjustment is not needed, and the length of the kidney-shaped holes is enough to accommodate the small error size.
In the inspection device, the screw-in positioning pin shaft converts the positioning of the inner cylindrical surface of the semi-surrounding structure in the real assembly environment into the positioning of the cylindrical surface positioned on the outer side of the semi-surrounding structure in the inspection device, namely, the positioning surface moves outwards, and meanwhile, the plurality of groups of positioning and clamping mounting seats ensure that the mounting reference coincides with the design reference, and the dimensional error influence among the positioning holes is effectively eliminated. The linear guide rail and the rotating bearing ensure the movement precision and the stable and accurate movement of the sample plate, and the labor intensity is reduced.
Compared with the prior art, the device and the method for rapidly eliminating the dimension error and rapidly clamping have the following characteristics:
1. the high-precision size of the positioning pin shaft structure ensures positioning reliability, and simultaneously, inner hole positioning (positioning of a mounting hole in the semi-surrounding structure) is converted into outer cylindrical surface positioning (positioning outside the semi-surrounding structure, external positioning is realized through matching of a positioning surface on the positioning pin shaft with waist-shaped holes and round holes on the positioning clamping support a, the positioning clamping support c and the positioning clamping support b), and the positioning clamping support a, the positioning clamping support c and the positioning clamping support b are directly fixed on a base without disassembly and assembly adjustment, so that the operation difficulty is reduced, and the efficiency is improved.
2. The waist-shaped hole, the round hole and the positioning surface of the positioning pin are matched through the rotatable openable upper pressing plate, the openable positioning clamping support structure is convenient for mounting (mounting from top to bottom) and positioning (positioning surfaces are in the 1/2 waist-shaped hole or the 1/2 round hole, and positioning conditions can be directly observed by naked eyes due to the fact that the upper pressing plate is opened), the mounting of the positioning pin is realized through the upper pressing plate and the bolts, the distance between the front positioning clamping support and the rear positioning clamping support is far, positioning is accurate, and the left positioning clamping support and the right positioning clamping support only limit the dimension in the height direction, so that the influence caused by hole position errors is effectively eliminated.
3. The linear sliding precision of the linear guide rail structure is high, the front and back movement position of the sample plate is accurate, the movement resistance is small, and the operation is labor-saving.
4. The template of the rotary inspection structure has accurate rotary position, small rotary resistance and labor-saving operation.
5. The circular arc surface positioning support structure in the round hole and the circular arc surface positioning support structure in the kidney-shaped hole effectively eliminate hole position tolerance (error) of the positioning hole.
6. The waist-shaped holes and the round holes on the positioning clamping support a, the positioning clamping support c and the positioning clamping support b are at a distance from the upper end face of the base, and the distance is larger than the distance from the installation hole of the large-scale lubricating oil tank to the upper end face of the base, so that the large-scale lubricating oil tank is suspended, and the outline size of the test template assembly can be conveniently detected from the bottom, the side and the upper part of the large-scale lubricating oil tank.
Drawings
FIG. 1 is a block diagram of a quick error elimination and quick clamping device of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a view of the quick clamp device of FIG. 3 without the in-line inspection device;
FIG. 5 is a block diagram of a linear inspection apparatus;
FIG. 6 is a block diagram of a quick clamping device;
FIG. 7 is a left side view of FIG. 6;
FIG. 8 is a top view of FIG. 6;
FIG. 9 is a block diagram of a rotation checking device;
FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;
FIG. 11 is a diagram of a screwed-in locating pin configuration;
FIG. 12 is a schematic view of a large-scale lubricant tank mounted and secured to an aircraft;
FIG. 13 is a schematic view of the quick clamping device of the present invention positioned with the mounting holes in the half enclosure of the large lubricant tank;
FIG. 14 is a schematic view of the mounting positions of the upper press plates on the positioning and clamping support a, the positioning and clamping support b and the positioning and clamping support c;
FIG. 15 is an enlarged schematic view of the kidney-shaped aperture in the positioning and clamping bracket a, the positioning and clamping bracket c, and the circular aperture in the positioning and clamping bracket b;
FIG. 16 is a top view of FIG. 5;
in the figure: the device comprises a 1-straight line inspection device, a 2-quick clamping device, a 3-base, a 4-rotary inspection device, a 5-fixed seat, a 6-fixed pin, a 7-semi-surrounding structure, an 8-upper pressing plate, an 11-inspection template assembly, a 12-straight line guide rail, a 13-guide rail support frame, a 21-positioning clamping support a, a 22-positioning pin, a 23-positioning clamping support b, a 24-positioning clamping support c, a 25-positioning support, a 41-bearing, a 42-connecting block, a 43-cover plate, a 44-rotating shaft, a 45-template and a 46-supporting seat.
Detailed Description
The present invention will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this invention pertains are included within the scope of the present invention without departing from the above technical idea of the invention.
As shown in FIG. 12, because the installation hole of the large-scale oil tank is positioned in the cast semi-surrounding structure 7, the product in the real installation structure is fixed by four fixing seats 5, because the size error of the installation hole is added, the weight and the volume of the product are huge, the installation and adjustment difficulty of the four fixing seats 5 are large (the bottom bolts of the fixing seats 5 need to be disassembled so as to adapt to the installation Kong Wucha of the upper ends of the fixing seats 5), in the embodiment, the positioning surface of the screw-in type fixing pin 6 is converted to the outer side of the semi-surrounding structure 7, the positioning reference of the quick clamping device 2 (the positioning clamping support a21, the two positioning clamping supports b23 and the positioning clamping support c 24) is overlapped with the design reference, two of the four positioning supports adopt a round hole cylindrical surface structure, and the two adopt a kidney Kong Yaoxing surface structure, so that the influence of the size error of the product installation hole is eliminated, and the upper pressing plate in the positioning supports ensures the fixing reliability. In addition, the high-precision linear guide rail is adopted to ensure that the high-precision translation of the test template assembly 11 is ensured to be within the range of 750 mm. The swivel bearing 41 ensures a swivel check gauge 45 with a small operating force.
The basic inspection concept of the invention is that four positioning pins 22 are used for converting the positioning surfaces to four positioning clamping supports (round hole surfaces and waist-shaped hole surfaces) positioned on the outer side of a large-scale lubricating oil tank semi-surrounding structure 7, and the four positioning clamping supports are used for rapidly aligning the installation positions so as to push an inspection template to realize linear translation and rotation inspection.
As shown in fig. 1 to 4, the inspection device for quickly eliminating dimensional errors and quickly clamping a large-sized lubricating oil tank comprises a base 3, a straight line inspection device 1, a rotary inspection device 4 and a quick clamping device 2. The linear inspection device 1 is positioned on the upper end face of the base 3 and comprises an inspection template assembly 11, a guide rail supporting frame 13 and a linear guide rail 12, wherein the guide rail supporting frame 13 is used for supporting the linear guide rail 12, an opening area capable of accommodating the maximum section outline of the large-scale lubricating oil tank is formed in the inspection template assembly 11, the opening area corresponds to the arc-shaped surface of the large-scale lubricating oil tank, the inspection template assembly 11 is connected to the linear guide rail 12 in a sliding manner, and the linear guide rail 12 is arranged along the width direction of the large-scale lubricating oil tank; the rotation checking device 4 is positioned on the upper end face of the base 3 and comprises a sample plate 45 and a supporting seat 46, one end of the sample plate 45 is rotatably connected to the supporting seat 46, the other end is a free end, and the rotation axis of the sample plate 45 is parallel to the upper end face of the base 3; the quick clamping device 2 is arranged on the upper end face of the base 3 and is positioned at the outer side of the starting point and the end point of the sliding path of the test template assembly 11, the quick clamping device 2 comprises a positioning clamping support a21, four positioning pin shafts 22, two positioning clamping supports b23, a positioning clamping support c24 and a positioning support 25, and the surface of the positioning pin shaft 22 is provided with a positioning surface; the positioning clamping support a21, the positioning clamping support b23 and the positioning clamping support c24 are fixedly connected to the upper end face of the base 3 and correspond to the positions of mounting holes on the large-scale lubricating oil tank one by one, and the distance between the positioning clamping support a21 and the positioning clamping support c24 and the distance between the two positioning clamping supports b23 are all such that when the large-scale lubricating oil tank is placed on the upper end face of the base 3 and the positions of the mounting holes correspond to the positioning clamping support a21, the positioning clamping support b23 and the positioning clamping support c24 one by one, the positioning clamping support a21, the positioning clamping support b23, the positioning clamping support c24 and the semi-surrounding structure 7 at the mounting holes of the large-scale lubricating oil tank are not contacted; waist-shaped holes for positioning pin shafts 22 are formed in the positioning clamping support a21 and the positioning clamping support c24, and round holes for positioning pin shafts 22 are formed in the two positioning clamping supports b 23. The connecting line between the two positioning and clamping supports b23 forms a first positioning shaft related to the large-scale lubricating oil tank, the width direction position of the large-scale lubricating oil tank is determined, the connecting line between the positioning and clamping supports a21 and b23 forms a second positioning shaft related to the large-scale lubricating oil tank, the length direction position of the large-scale lubricating oil tank is determined, the first positioning shaft and the second positioning shaft are intersected to determine the plane of the large-scale lubricating oil tank, the height position of the large-scale lubricating oil tank is limited by the positioning holes formed by the positioning pin shafts 22 on the positioning and clamping supports c24, and the positioning supports 25 are used for supporting the large-scale lubricating oil tank in an auxiliary mode from the side. The heights of the round holes (relative to the upper end surface of the base 3) on the two positioning and clamping supports b23 are identical, and the heights of the kidney-shaped holes on the positioning and clamping support c24 are lower than those of the kidney-shaped holes on the positioning and clamping support a 21.
As shown in fig. 5 and 16, the inspection panel assembly 11 includes a first panel 111, a second panel 112, and a third panel 113 connected end to end in this order, the first panel 111 and the third panel 113 are not connected and form an opening, and the lower end surface of the first panel 111 corresponds to the maximum contour of the upper end surface of the large-sized lubricant tank, the side surface of the second panel 112 corresponds to the maximum contour of the side surface of the large-sized lubricant tank in the width direction, and the upper surface of the third panel 113 corresponds to the maximum contour of the lower end surface of the large-sized lubricant tank. One side of the second template 112 is slidably connected to the linear guide rail 12 through a slider, and one side of the third template 113 is slidably connected to the linear guide rail 12 through a slider.
As shown in fig. 1, 9 and 10, when the template 45 rotates about the rotation axis, the curved surface formed by the free end of the template 45 corresponds to the maximum profile of the curved surface of the large-sized lubricant tank.
As shown in fig. 11 and 13, the positioning pin 22 includes a first pin section disposed in the mounting hole and a second pin section disposed in the kidney-shaped hole or the circular hole, the surface of the second pin section being a cylindrical surface as a positioning surface. The positioning pin 22 further comprises a third pin section and a limiting section, the third pin section is connected with the second pin section, and the length of the third pin section is as long as the third pin section is positioned outside the positioning clamping support a21, the positioning clamping support b23 and the positioning clamping support c24 when the first pin section is arranged in the mounting hole and the second pin section is arranged in the kidney-shaped hole or the round hole; the limiting section is positioned between the first pin shaft section and the second pin shaft section, and when the first pin shaft section is completely inserted into the mounting hole, the end face of the limiting section is in contact with the surface of the semi-surrounding structure 7.
As shown in fig. 13 and 14, the upper end surface of the positioning and clamping support a21 is provided with a 1/2 waist-shaped hole and a threaded hole, the upper end of the positioning and clamping support a21 is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 waist-shaped hole and the threaded hole, and when the upper pressing plate rotates around a hinging point and contacts with the upper end of the positioning and clamping support a21, the two 1/2 waist-shaped holes form a complete waist-shaped hole;
as shown in fig. 14 and 15, the upper end surface of the positioning and clamping support c24 is provided with a 1/2 waist-shaped hole and a threaded hole, the upper end of the positioning and clamping support c24 is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 waist-shaped hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning and clamping support c24, the two 1/2 waist-shaped holes form a complete waist-shaped hole; the upper end face of the positioning clamping support b23 is provided with a 1/2 round hole and a threaded hole, the upper end of the positioning clamping support b23 is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 round hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning clamping support b23, the two 1/2 round holes form a complete round hole. The kidney-shaped hole refers to a hole formed by connecting two ends of a rectangle with a semicircle, i.e. in fig. 15, two semicircles have a straight line spacing.
As shown in fig. 9 and 10, the rotation checking device 4 further includes a bearing 41, a coupling block 42, a cover plate 43, a rotating shaft 44 and a supporting seat 46, the bearing 41 is fixed in the coupling block 42, the rotating shaft 44 is sleeved in the bearing 41, one end of a sample plate 45 is connected with the rotating shaft 44 through the cover plate 43, the coupling block 42 is fixed on the supporting seat 46, and the supporting seat 46 is connected with the base 3 through bolts, cylindrical pins and the like.
The inspection method for quickly eliminating the dimension error and quickly clamping the large-scale lubricating oil tank adopts the inspection device, and the inspection method comprises the following steps of,
the method comprises the steps of firstly, lifting a large-scale lubricating oil tank to the upper part of an inspection device, placing the large-scale lubricating oil tank on the same side as a rotary inspection device 4 according to the upward arc surface, screwing four positioning pins 22 into mounting holes in a semi-surrounding structure 7 respectively, and ensuring that the positioning surfaces of the positioning pins 22 are exposed out of the semi-surrounding structure 7;
step two, rotating to open the upper pressing plates on the positioning clamping support a21, the positioning clamping support c24 and the positioning clamping support b23, adjusting the position of the large lubricating oil tank, ensuring that the exposed positioning surfaces of the four positioning pins 22 are aligned with the 1/2 waist-shaped holes of the positioning clamping support a21 and the positioning clamping support c24 and the 1/2 round hole of the positioning clamping support b23 in the quick clamping device 2 respectively, moving the large lubricating oil tank downwards, ensuring that the positioning surfaces of two positioning pins 22 are firstly placed into the 1/2 round holes of the positioning clamping support b23, then placing the positioning surfaces of the remaining two positioning pins 22 into the positioning clamping support a21 and the 1/2 waist-shaped holes of the positioning clamping support c24, finely adjusting the positions of the four positioning pins 22, determining that the positioning pins 22 are axially screwed into place (the limiting sections of the positioning pins 22 are in contact with the surface of the semi-surrounding structure, realizing axial adjustment by operating the third pin section), rotating to close the four upper pressing plates, and inserting locking bolts into threaded holes (threaded holes are formed in the other end far from the upper hinging point in fig. 14), thereby completing quick clamping and dimension error elimination of the large lubricating oil tank; or the positioning pin shaft 22 is firstly put into the 1/2 waist-shaped hole and then put into the 1/2 round hole;
step three, moving the linear inspection device 1 along the linear guide rail 12, and observing whether the first template 111, the second template 112 and the third template 113 in the inspection template assembly 11 interfere with the outer contour of the large-scale lubricating oil tank in the moving process;
and step four, rotating the rotary inspection device 4 to observe whether the free end of the template 45 interferes with the arc-shaped surface of the large-scale lubricating oil tank, so as to ensure that the product cannot collide with other products when actually installed in the casing.
Claims (7)
1. A verifying attachment for large-scale oil tank eliminates size error, quick clamping fast, large-scale oil tank includes an arc surface and is located four mounting holes on arc surface both sides, and the mounting hole is located the half surrounding structure (7) on large-scale oil tank surface, its characterized in that: the inspection device comprises a device for inspecting the surface of the object,
a base (3);
the linear inspection device (1), the linear inspection device (1) is located on the upper end face of the base (3), and comprises an inspection template assembly (11) and a linear guide rail (12), an opening area capable of accommodating the maximum section outline of the large-scale lubricating oil tank is formed in the inspection template assembly (11), the opening corresponds to the arc-shaped surface of the large-scale lubricating oil tank, the inspection template assembly (11) is slidably connected to the linear guide rail (12), and the linear guide rail (12) is arranged along the width direction of the large-scale lubricating oil tank;
the rotation checking device (4) is positioned on the upper end face of the base (3) and comprises a sample plate (45) and a supporting seat (46), one end of the sample plate (45) is rotatably connected to the supporting seat (46), the other end of the sample plate is a free end, and the rotation axis of the sample plate (45) is parallel to the upper end face of the base (3); when the template (45) rotates around the rotation axis, the curved surface formed at the free end of the template (45) corresponds to the maximum contour of the arc surface of the large-scale lubricating oil tank;
the quick clamping device (2) is arranged on the upper end face of the base (3) and is positioned at the outer side of the starting point and the end point of the sliding path of the test template assembly (11), the quick clamping device (2) comprises a positioning and clamping support a (21), four positioning pin shafts (22), two positioning and clamping supports b (23), a positioning and clamping support c (24) and a positioning support (25), and a positioning surface is arranged on the surface of the positioning pin shaft (22);
the positioning clamping support a (21), the positioning clamping support b (23) and the positioning clamping support c (24) are fixedly connected to the upper end face of the base (3) and correspond to the positions of mounting holes on the large-scale lubricating oil tank one by one, and the distance between the positioning clamping support a (21) and the positioning clamping support c (24) and the distance between the two positioning clamping supports b (23) are all such that when the large-scale lubricating oil tank is placed on the upper end face of the base (3) and the positions of the mounting holes correspond to the positioning clamping support a (21), the positioning clamping support b (23) and the positioning clamping support c (24) one by one, the positioning clamping support a (21), the positioning clamping support b (23), the positioning clamping support c (24) and the semi-surrounding structure (7) at the mounting holes of the large-scale lubricating oil tank are not contacted;
waist-shaped holes for installing positioning pins (22) are formed in the positioning clamping support a (21) and the positioning clamping support c (24), and round holes for installing the positioning pins (22) are formed in the two positioning clamping supports b (23); the positioning pin shaft (22) comprises a first pin shaft section arranged in the mounting hole and a second pin shaft section arranged in the kidney-shaped hole or the round hole, and the surface of the second pin shaft section is a cylindrical surface serving as a positioning surface;
the upper end face of the positioning clamping support a (21) is provided with a 1/2 waist-shaped hole and a threaded hole, the upper end of the positioning clamping support a (21) is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 waist-shaped hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning clamping support a (21), the two 1/2 waist-shaped holes form a complete waist-shaped hole;
the upper end face of the positioning clamping support c (24) is provided with a 1/2 waist-shaped hole and a threaded hole, the upper end of the positioning clamping support c (24) is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 waist-shaped hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning clamping support c (24), the two 1/2 waist-shaped holes form a complete waist-shaped hole;
the upper end face of the positioning clamping support b (23) is provided with a 1/2 round hole and a threaded hole, the upper end of the positioning clamping support b (23) is hinged with an upper pressing plate, the upper pressing plate is provided with the 1/2 round hole and the threaded hole, and when the upper pressing plate rotates around a hinged point and contacts with the upper end of the positioning clamping support b (23), the two 1/2 round holes form a complete round hole.
2. The inspection device for quickly eliminating dimensional errors and quickly clamping a large-scale lubricating oil tank according to claim 1, wherein the inspection device is characterized in that: the inspection template assembly (11) comprises a first template (111), a second template (112) and a third template (113) which are sequentially connected end to end, wherein no connection exists between the first template (111) and the third template (113) and an opening is formed, the lower end face of the first template (111) corresponds to the maximum contour of the upper end face of the large-sized lubricating oil tank, the side surface of the second template (112) corresponds to the maximum contour of the side surface of the width direction of the large-sized lubricating oil tank, and the upper surface of the third template (113) corresponds to the maximum contour of the lower end face of the large-sized lubricating oil tank.
3. The inspection device for quickly eliminating dimensional errors and quickly clamping a large-scale lubricating oil tank according to claim 2, wherein the inspection device is characterized in that: one side of the second template (112) is in sliding connection with the linear guide rail (12) through a sliding block, and one side of the third template (113) is in sliding connection with the linear guide rail (12) through a sliding block.
4. The inspection device for quickly eliminating dimensional errors and quickly clamping a large-scale lubricating oil tank according to claim 1, wherein the inspection device is characterized in that: the device also comprises a third pin shaft section and a limiting section,
the third pin shaft section is connected with the second pin shaft section, and the length of the third pin shaft section is that when the first pin shaft section is arranged in the mounting hole and the second pin shaft section is arranged in the kidney-shaped hole or the round hole, the third pin shaft section is positioned outside the positioning and clamping support a (21), the positioning and clamping support b (23) and the positioning and clamping support c (24);
the limiting section is positioned between the first pin shaft section and the second pin shaft section, and when the first pin shaft section is completely inserted into the mounting hole, the end face of the limiting section is in surface contact with the semi-surrounding structure (7).
5. The inspection device for quickly eliminating dimensional errors and quickly clamping a large-scale lubricating oil tank according to claim 1, wherein the inspection device is characterized in that: the rotation inspection device (4) further comprises a bearing (41), a connecting block (42), a cover plate (43) and a rotating shaft (44), wherein the bearing (41) is fixed in the connecting block (42), the rotating shaft (44) is sleeved in the bearing (41), one end of a template (45) is connected with the rotating shaft (44) through the cover plate (43), and the connecting block (42) is fixed on a supporting seat (46).
6. A method for inspecting a large-scale lubricating oil tank to quickly eliminate size errors and quickly clamp the lubricating oil tank is characterized by comprising the following steps of: with the inspection apparatus according to claim 1, the inspection method comprises,
lifting a large-scale lubricating oil tank to the upper part of the inspection device, placing the large-scale lubricating oil tank on the same side with the rotary inspection device (4) according to the upward arc surface, screwing four positioning pins (22) into mounting holes in the semi-surrounding structure (7) respectively, and ensuring that the positioning surfaces of the positioning pins (22) are exposed out of the semi-surrounding structure (7);
step two, rotating to open the upper pressing plates on the positioning clamping support a (21), the positioning clamping support c (24) and the positioning clamping support b (23), adjusting the positions of the large lubricating oil tanks, ensuring that the exposed positioning surfaces of the four positioning pins (22) are aligned with the 1/2 waist-shaped holes of the positioning clamping support a (21), the positioning clamping support c (24) and the 1/2 round holes of the positioning clamping support b (23) in the quick clamping device (2), downwards moving the large lubricating oil tanks, ensuring that the positioning surfaces of the two positioning pins (22) are firstly placed into the 1/2 round holes of the positioning clamping support b (23), then placing the positioning surfaces of the remaining two positioning pins (22) into the positioning clamping support a (21) and the 1/2 waist-shaped holes of the positioning clamping support c (24), finely adjusting the positions of the four positioning pins (22), determining that the positioning pins (22) are axially screwed into place, and then rotating to close the four upper pressing plates, inserting locking bolts into the threaded holes, thereby completing quick clamping and size error elimination of the large lubricating oil tanks;
step three, moving the linear inspection device (1) along the linear guide rail (12), and observing whether the inspection template assembly (11) interferes with the outer contour of the large-scale lubricating oil tank in the moving process;
and step four, rotating the rotary inspection device (4) to observe whether the free end of the template (45) interferes with the arc-shaped surface of the large-scale lubricating oil tank.
7. A method for inspecting a large-scale lubricating oil tank to quickly eliminate size errors and quickly clamp the lubricating oil tank is characterized by comprising the following steps of: with the inspection apparatus according to claim 1, the inspection method comprises,
lifting a large-scale lubricating oil tank to the upper part of the inspection device, placing the large-scale lubricating oil tank on the same side with the rotary inspection device (4) according to the upward arc surface, screwing four positioning pins (22) into mounting holes in the semi-surrounding structure (7) respectively, and ensuring that the positioning surfaces of the positioning pins (22) are exposed out of the semi-surrounding structure (7);
step two, rotating to open the upper pressing plates on the positioning clamping support a (21), the positioning clamping support c (24) and the positioning clamping support b (23), adjusting the position of the large lubricating oil tank, ensuring that the exposed positioning surfaces of the four positioning pins (22) are aligned with the 1/2 waist-shaped holes of the positioning clamping support a (21), the positioning clamping support c (24) and the 1/2 round holes of the positioning clamping support b (23) in the quick clamping device (2), downwards moving the large lubricating oil tank, ensuring that the positioning surfaces of the two positioning pins (22) are firstly placed in the positioning clamping support a (21) and the 1/2 waist-shaped holes of the positioning clamping support c (24), finely adjusting the position of the large lubricating oil tank, then placing the positioning surfaces of the remaining two positioning pins (22) in the 1/2 round holes of the positioning clamping support b (23), finely adjusting the positions of the four positioning pins (22), and rotating to close the four upper pressing plates after the positioning pins (22) are axially screwed into positions, and inserting locking bolts into the threaded holes to complete quick clamping and dimension error elimination of the large lubricating oil tank;
step three, moving the linear inspection device (1) along the linear guide rail (12), and observing whether the inspection template assembly (11) interferes with the outer contour of the large-scale lubricating oil tank in the moving process;
and step four, rotating the rotary inspection device (4) to observe whether the free end of the template (45) interferes with the arc-shaped surface of the large-scale lubricating oil tank.
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