CN117783148A - Tire appearance detection device and application method thereof - Google Patents
Tire appearance detection device and application method thereof Download PDFInfo
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- CN117783148A CN117783148A CN202410214207.2A CN202410214207A CN117783148A CN 117783148 A CN117783148 A CN 117783148A CN 202410214207 A CN202410214207 A CN 202410214207A CN 117783148 A CN117783148 A CN 117783148A
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- 238000001514 detection method Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 187
- 238000001125 extrusion Methods 0.000 claims abstract description 50
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 230000001965 increasing effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of tire detection equipment, in particular to a tire appearance detection device and a use method thereof. The utility model provides a tire appearance detection device, includes the rack, be equipped with the side fixture of rotatable centre gripping a portion tire from both sides on the rack, the center department is equipped with conveyer belt mechanism, conveyer belt mechanism includes the conveyer belt that two intervals set up, conveyer belt mechanism below is equipped with elevating platform mechanism, be equipped with on the elevating platform mechanism and follow two shooting subassembly and extrusion rotary mechanism that the interval department of conveyer belt passed, extrusion rotary mechanism can radially expand extrusion tire and drive the tire rotation from inside the tire, makes not the butt the tire of side fixture department produces partial deformation. The invention can be in butt joint with the conveying line of the tire, and can directly detect the appearance of the tire on the tire conveying line, thereby reducing the labor intensity of workers, improving the detection efficiency and having good detection stability.
Description
Technical Field
The invention relates to the technical field of tire detection equipment, in particular to a tire appearance detection device and a use method thereof.
Background
Tires are annular elastic rubber products which are used for being assembled on various vehicles or machines and ground-engaging and rolling to provide support, and the appearance of the tire after being processed and molded is usually required to be checked to see whether obvious defects exist on the tread of the tire. In order to reduce the labor intensity of workers, the visual camera is mainly used for detecting the appearance of the tire in real time at present, and when the tire is detected, the tire is extruded to deform, so that hidden flaws are easier to find. However, at present, the tire is extruded along the axial direction of the tire, and the tire is manually conveyed to the detection device in the extrusion mode, so that the labor intensity of workers is high, the tread edge of the tire is easily shielded by axial extrusion, and the detection effect is affected.
The patent of application number 202211238133.3 discloses an on-line detection device of tire, including conveyer, pivot, motor, worm and gear, equal fixed mounting in both sides has supporting seat, support around the conveyer, install the rotary drum through the pivot rotation between supporting seat and the support, the top activity of rotary drum inner wall has cup jointed spring and piston post, the top fixedly connected with support column of piston post. According to the invention, the second piston column moving towards the inner side of the accommodating column can push the transmission liquid to flow and push the first piston column upwards, so that the first spring is compressed, and then the supporting column, the connecting plate and the image collector are driven to move upwards, so that the image capturing view of the image collector is widened, and the tyre is extruded through the resilience force of the second spring when being contacted with the contact assembly, so that the appearance characteristic defect which is not easy to detect on the surface of the tyre is amplified, and the detection is more accurate. However, the above technical solution has the following disadvantages: the contact assembly can clamp the extruded tire to a certain extent, but the tire is easy to fall off during rotation because the contact assembly is always in a rotation state, so that the clamping stability is poor, and the smooth detection is affected.
Therefore, there is a need for a tire appearance inspection apparatus that has good suitability for tire conveyor lines and good gripping and inspection stability.
Disclosure of Invention
In order to solve the technical problems, the invention provides a tire appearance detection device, which comprises a rack, wherein a side clamping mechanism capable of rotatably clamping a part of tires from two sides is arranged on the rack, a conveyor belt mechanism is arranged in the center of the rack, the conveyor belt mechanism comprises two conveyor belts arranged at intervals, a lifting table mechanism is arranged below the conveyor belt mechanism, a shooting assembly and an extrusion rotating mechanism which can penetrate through the interval between the two conveyor belts are arranged on the lifting table mechanism, and the extrusion rotating mechanism can radially expand and extrude the tires from the inside of the tires and drive the tires to rotate so as to enable the tires which are not abutted against the side clamping mechanism to generate partial deformation.
Preferably, the rack sequentially comprises a base, an upright post and two side table boards which are arranged at intervals in parallel from bottom to top, wherein the side table boards are provided with the side clamping mechanisms, and the two side table boards face the tire inlet to form a V-shaped guide opening; the shooting assembly comprises a camera and an illuminating lamp which can be aligned to the deformation part of the tire; the side clamping mechanism, the conveyor belt mechanism, the lifting table mechanism, the shooting assembly and the extrusion rotating mechanism are all electrically connected with the controller.
Preferably, the side clamping mechanism comprises two side clamping plates rotatably arranged on two sides of the conveyor belt mechanism, the side clamping plates are arc-shaped coaxial with the tire, a plurality of driven rollers rotatably abutted to the tire are vertically arranged on the intrados, and a clamping driving mechanism for driving the two side clamping plates to simultaneously rotate relatively is arranged on the rack.
Preferably, the conveyor belt mechanism comprises two conveyor belts, each conveyor belt is connected with a driving belt wheel and a driven belt wheel respectively, the driving belt wheels are fixed on a driving shaft, the driven belt wheels are fixed on a driven shaft, and the driving shaft is connected with a second servo motor.
Preferably, the lifting table mechanism comprises a rectangular lifting table, a mounting frame capable of penetrating through the interval of the two conveyor belts is arranged on the lifting table, and the lifting table is connected with a lifting driving mechanism; the lifting driving mechanism comprises a third servo motor arranged at the bottom of the rack, the third servo motor drives four vertically arranged bidirectional screw rods to synchronously rotate through a transmission mechanism, the bidirectional screw rods are rotatably arranged on the rack, the upper thread is in threaded connection with a nut seat, the lower thread is in threaded connection with the right angle of the lifting platform, and the driving shaft and the driven shaft are respectively arranged between the two nut seats.
Preferably, the extrusion rotary mechanism comprises a rotary drum and a rotary control, wherein the rotary drum is rotatably arranged on the mounting frame, the rotary control is used for driving the rotary drum to rotate, a plurality of rectangular holes are formed in the rotary drum at equal intervals, a telescopic control is arranged on the mounting frame, the telescopic control is connected with radial telescopic rods which are arranged at equal intervals, and the radial telescopic rods can pass through the rectangular holes in a sliding mode.
Preferably, the rotation control comprises a gear ring arranged on the rotary drum and a fourth servo motor arranged on the mounting frame, and the output end of the fourth servo motor is connected with a second gear meshed with the gear ring; the radial telescopic rod comprises a first rectangular rod and a second rectangular rod which are hinged, the free end of the second rectangular rod is connected with a third rectangular rod in a sliding mode, a two-way memory spring connected with a power supply is arranged between the second rectangular rod and the third rectangular rod, the free end of the third rectangular rod is connected with a antiskid plate capable of being abutted to the inner wall of the tire, and the width and the height of the first rectangular rod, the width and the height of the third rectangular rod are consistent with those of the rectangular hole.
Preferably, the telescopic control comprises a vertical guide rod fixedly arranged on the mounting frame and a cylinder, a cam is arranged on the guide rod in a sliding mode, the bottom of the cam is connected with a piston rod of the cylinder, a limiting block is arranged at the top of the guide rod, the cam comprises a circular part coaxial with the rotary drum and a protruding part facing the deformation of the tire, a sliding track is arranged on the circumference of the cam, a plurality of sliding blocks are arranged on the sliding track, and the sliding blocks are hinged to the free ends of the first rectangular rods.
Preferably, the mounting frame is provided with a rear clamping mechanism, the rear clamping mechanism comprises a circular arc-shaped rear clamping plate, the rear clamping plate is fixedly arranged on the mounting frame through a mounting rod and can be enclosed with two side clamping plates to form a circular shape facing the output direction, the intrados of the rear clamping plate is vertically provided with a plurality of driving rollers rotatably abutted to the tire, the roller shafts of the driving rollers penetrate through the bottoms of the rear clamping plate and are rotatably arranged on the mounting frame, a driving belt is arranged between adjacent roller shafts, a third gear is arranged on the roller shafts, a fourth gear is rotatably arranged on the mounting frame and is respectively meshed with the third gear and the second gear.
The invention provides a use method of a tire appearance detection device, which comprises the following steps:
s100, mounting a tire appearance detection device on a tire conveying line to enable the conveying direction of a conveying belt mechanism to be consistent with the conveying direction of a tire; in the initial state, the lifting table mechanism is at the lowest point, and the shooting assembly and the extrusion rotating mechanism are both positioned below the conveyor belt;
step 200, after the tire is conveyed to a target position, stopping running of the conveyor belt, and clamping and holding the tire by the side clamping mechanisms from two sides of the conveying direction, and automatically centering the tire while holding the tire;
step S300, after clamping is finished, the lifting table mechanism is lifted to a target position, at the moment, the shooting assembly and the extrusion rotating mechanism move to the upper part of the conveyor belt, the extrusion rotating mechanism radially expands to extrude the tire from the inside of the tire, radial deformation force is generated when the tire is driven to rotate, the part of the tire, which is not contacted with the side clamping mechanism, is deformed, and the shooting assembly shoots aiming at the deformed part;
and S400, after the detection is finished, the extrusion rotating mechanism stops rotating, the tire is radially retracted and reset and released, then the lifting table mechanism descends to an initial position, the side clamping mechanism releases the tire, and the conveyor belt mechanism starts to operate so as to convey the tire to the conveying line.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the tire clamping device can be in butt joint with a tire conveying line, the tire is directly subjected to appearance detection on the tire conveying line, a worker is not required to carry the tire during detection, the labor intensity of the worker is reduced, the side clamping mechanism can rotationally clamp the tire, the tire is prevented from falling off and is matched with the extrusion rotating mechanism, the tire is enabled to generate local radial deformation, and the detection stability and the detection effect are improved;
2. the two side clamping plates of the side clamping mechanism can relatively rotate under the drive of the clamping driving mechanism, in an initial state, the openings of the two side clamping plates facing the tire input end are enlarged, so that the tire can be pushed into the detection position while being convenient for the tire input, and after the detection is finished, the two side clamping plates reversely relatively rotate, the openings facing the tire output end are enlarged, so that the tire can be quickly pushed out of the detection position while being convenient for the tire output;
3. the lifting table mechanism can drive the shooting assembly, the extrusion rotating mechanism and the conveyor belt mechanism to move relatively in the vertical direction at the same time; the nut seat descends when the lifting platform ascends, the lifting platform drives the shooting assembly and the extrusion rotating mechanism to move upwards to the target detection position, the nut seat drives the conveying belt mechanism to move downwards, the conveying belt is separated from the tire, and the phenomenon of friction between the tire and the conveying belt during rotation of the tire is eliminated;
4. the rotating control of the extrusion rotating mechanism can drive the radial telescopic rod to rotate by controlling the rotation of the rotary drum, the radial length of the radial telescopic rod can be controlled by the telescopic control by controlling the lifting of the cam, the detection stability is improved, the deformation of the tire detection position can be increased by the cam, and the detection effect is improved;
5. the side clamping mechanism and the rear clamping mechanism jointly clamp and hold the tire tightly to form a round shape facing the output direction opening, so that the deformation of the tire can be concentrated in a detection area (namely an opening), unnecessary deformation is reduced, and the detection stability and the detection effect are improved; in addition, the fourth servo motor of the extrusion rotating mechanism can drive the rotary drum of the extrusion rotating mechanism and the driving roller of the rear clamping mechanism to rotate simultaneously, so that the rotation stability of the tire is further improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of the side clamping mechanism;
FIG. 4 is a schematic view of the conveyor belt mechanism;
FIG. 5 is an exploded view of the lift table mechanism;
FIG. 6 is an exploded view of the squeeze rotation mechanism;
FIG. 7 is an exploded view of a radial expansion link;
FIG. 8 is a schematic view of the structure of the cam;
FIG. 9 is a schematic view of the structure of the rear clamping mechanism;
FIG. 10 is a schematic view of the initial state of the invention in use;
FIG. 11 is a top view of the side clamping mechanism of the present invention holding a tire;
FIG. 12 is a schematic view of the elevating platform assembly of the present invention raised to a testing position;
fig. 13 is a plan view of the detection state of the present invention.
Reference numerals illustrate:
1. a bench, 11, a base, 12, a column, 13, a side platen, 2, a side clamping mechanism, 21, a side clamping plate, 22, a driven roller, 23, a clamping driving mechanism, 231, a clamping plate rotating shaft, 232, a first sprocket, 233, a chain, 234, a second sprocket, 235, a first gear, 236, a first servo motor, 237, a gear rotating shaft, 3, a conveyor belt mechanism, 31, a conveyor belt, 32, a driving pulley, 33, a driven pulley, 34, a driving shaft, 35, a driven shaft, 36, a second servo motor, 4, a lifting table mechanism, 41, a lifting table, 42, a mounting bracket, 43, a lifting driving mechanism, 431, a third servo motor, 432, a transmission mechanism, 4321, a center shaft, 4322, a side shaft, 4323, a first conical gear, 4324, a second conical gear, 4325, a third conical gear, 4326, a fourth conical gear, 4327, a fifth conical gear, 4328, a sixth conical gear, 433, a bi-directional screw, 434, a nut holder, 5, a photographing assembly, 51, a camera, 52, an illumination lamp, 6, a pressing rotation mechanism, 61, a drum, 611, a rectangular hole, 62, a rotation control, 621, a ring gear, 622, a fourth servo motor 623, a second gear, 63, a radial telescopic rod, 631, a first rectangular rod, 632, a second rectangular rod, 6321, a rectangular slot, 6322, a circular slot, 633, a third rectangular rod, 6331, a rectangular insert, 6332, a circular insert, 634, a cleat, 635, a bi-directional memory spring, 64, a telescopic control, 641, a guide rod, 6411, a stopper, 642, a cam, 6421, a circular portion, 6422, a boss, 6423, a slide rail, 643, a slider, 644, a cylinder, 7, a rear clamp mechanism, 71, a rear clamp plate, 711, a mounting rod, 72, a driving roller, 721, a roller shaft, 73, a belt, 74, a third gear, 75. and a fourth gear.
Detailed Description
The following describes specific embodiments of the invention with reference to the drawings and examples:
it should be noted that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the invention, which is defined by the appended claims.
Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Example 1
With reference to fig. 1-13, this embodiment provides a tire appearance detection device, including rack 1, be equipped with the side fixture 2 of rotatable centre gripping a part of tire from both sides on the rack 1, the center department is equipped with conveyer belt mechanism 3, conveyer belt mechanism 3 includes two conveyer belts 31 that the interval set up, conveyer belt mechanism 3 below is equipped with elevating platform mechanism 4, be equipped with on elevating platform mechanism 4 and follow two shooting subassembly 5 and the extrusion rotary mechanism 6 that the interval department of conveyer belt 31 passed, extrusion rotary mechanism 6 can radially expand extrusion tire and drive the tire rotation from the tire inside, makes not the butt the tire of side fixture 2 department produces partial deformation. In the above technical solution, the conveyor belt mechanism 3 may be installed in any suitable manner at the center of the stand 1, so as to ensure that the conveyor belt can be abutted with the front and rear conveyor lines of the tire.
In a specific technical scheme, the rack 1 sequentially comprises a base 11, an upright post 12 and two side table boards 13 which are arranged at intervals in parallel from bottom to top, the side table boards 13 are provided with the side clamping mechanisms 2, and the two side table boards 13 face to the tire inlet to form a V-shaped guide opening; the shooting assembly 5 comprises a camera 51 and an illuminating lamp 52 which can be aligned with the deformation of the tire; the side clamping mechanism 2, the conveyor belt mechanism 3, the lifting table mechanism 4, the shooting assembly 5 and the extrusion rotating mechanism 6 are all electrically connected with the controller. In the above-described embodiments, the side platen 13 can guide the tire fed into the gantry 1 so that the bead of the tire is positioned in the interval between the two conveyor belts 31.
The working principle and working process of the embodiment are as follows: as shown in fig. 10, the present apparatus is mounted on a tire conveying line (the arrow direction in fig. 10 is the tire conveying direction) so that the conveyor belt 31 of the conveyor belt mechanism 3 coincides with the tire conveying direction; in the initial state, the lifting table mechanism 4 is at the lowest point, and the shooting assembly 5 and the extrusion rotating mechanism 6 are both positioned below the conveyor belt 31, so that the conveying of tires on the conveyor belt 31 is not interfered; as shown in fig. 11, when the tire is conveyed to the target position, the conveyor belt 31 stops running, the side clamping mechanism 2 clamps the hugging tire from both sides in the conveying direction, the tire is automatically centered while the tire is hugged, and the clamping of the side clamping mechanism 2 does not interfere with the rotation of the tire because the side clamping mechanism 2 and the tire can relatively rotate; after the clamping is completed, as shown in fig. 12, the lifting table mechanism 4 is lifted to a target position, at this time, the photographing assembly 5 and the extrusion rotating mechanism 6 are moved above the conveyor belt 31, the extrusion rotating mechanism 6 radially expands, the tire is radially extruded from the inside of the tire, a radial deformation force is generated while the tire is driven to rotate, and since the side clamping mechanism 2 can generate a radial deformation force against the radial deformation force generated by the extrusion rotating mechanism 6, the deformation of the tire only occurs at a portion which is not in contact with the side clamping mechanism 2, and the photographing assembly 5 photographs at the deformation position; after the detection is finished, the extrusion rotating mechanism 6 stops rotating, the tire is radially retracted and reset to be released, then the lifting table mechanism 4 descends to the initial position, the side clamping mechanism 2 releases the tire, the conveyor belt mechanism 3 starts to operate, and the tire is conveyed to the conveying line.
The tire appearance detection device in this embodiment can dock with the transfer chain of tire, directly carries out outward appearance detection to the tire on the tire transfer chain, need not the workman and carries the tire when detecting, has reduced workman intensity of labour, and side fixture 2 rotatable centre gripping tire can cooperate with extrusion rotary mechanism 6 when avoiding the tire to drop, makes the tire produce local radial deformation, has improved detection stability and detection effect.
Example 2
With reference to fig. 1-13, this embodiment provides a tire appearance detecting device, and optimizes the structure of a side clamping mechanism 2 based on embodiment 1, specifically as follows,
the side clamping mechanism 2 comprises two side clamping plates 21 rotatably arranged on two sides of the conveyor belt mechanism 3, the side clamping plates 21 are arc-shaped coaxial with the tire, a plurality of driven rollers 22 rotatably abutted to the tire are vertically arranged on the intrados, and a clamping driving mechanism 23 for driving the two side clamping plates 21 to simultaneously rotate relatively is arranged on the rack 1.
In a specific technical scheme, the clamping driving mechanism 23 includes a clamping plate rotating shaft 231 vertically disposed at the bottom of the side clamping plate 21, the clamping plate rotating shaft 231 is respectively rotatably connected with the side platen 13 and the base 11, a first sprocket 232 is disposed on the clamping plate rotating shaft 231, the first sprocket 232 is connected with a second sprocket 234 through a chain 233, the second sprocket 234 is coaxially connected with a first gear 235, the two first gears 235 are meshed with each other, and a first servo motor 236 connected with one first gear 235 is disposed on the base 11, and a gear rotating shaft 237 connected with the other first gear 235 is rotatably disposed on the base. In the above-mentioned solution, as shown in fig. 11, the clamping plate rotating shaft 231 is preferably disposed at a radial position of the side clamping plates 21 perpendicular to the conveying direction, and the opening facing the output end formed by the two side clamping plates 21 after the tire is clasped is larger than the opening facing the input end. The clamp driving mechanism 23 of the present invention is not limited to the above-described structure, and a structure capable of driving the two side clamp plates 21 to simultaneously rotate relative to each other is applicable to the present invention.
In this embodiment, the two side clamping plates 21 can relatively rotate under the driving of the clamping driving mechanism 23, in the initial state, as shown in fig. 1, the opening of the two side clamping plates 21 facing the tire input end is enlarged, so that the tire can be pushed into the detection position while being convenient for the tire input, and after the detection is completed, the two side clamping plates 21 relatively rotate in the opposite direction, the opening facing the tire output end is enlarged, so that the tire can be quickly pushed away from the detection position while being convenient for the tire output.
Example 3
With reference to fig. 1 to 13, this embodiment provides a tire appearance detecting device, which optimizes the structures of a conveyor belt mechanism 3 and a lifting table mechanism 4 on the basis of embodiment 2, and specifically adopts the following technical scheme,
the conveyor belt mechanism 3 comprises two conveyor belts 31, each conveyor belt 31 is respectively connected with a driving belt pulley 32 and a driven belt pulley 33, the driving belt pulley 32 is fixed on a driving shaft 34, the driven belt pulley 33 is fixed on a driven shaft 35, and the driving shaft 34 is connected with a second servo motor 36.
In a specific embodiment, the lifting platform mechanism 4 includes a rectangular lifting platform 41, a mounting frame 42 capable of passing through the two conveyor belts 31 at intervals is arranged on the lifting platform 41, and the lifting platform 41 is connected with a lifting driving mechanism 43; the lifting driving mechanism 43 comprises a third servo motor 431 arranged at the bottom of the rack 1, the third servo motor 431 drives four vertically arranged bidirectional screws 433 to synchronously rotate through a transmission mechanism 432, the bidirectional screws 433 are rotatably arranged on the rack 1, the upper thread is in threaded connection with a nut seat 434, the lower thread is in threaded connection with the right angle of the lifting table 41, and the driving shaft 34 and the driven shaft 35 are respectively arranged between the two nut seats 434. In the above technical solution, the clamping plate rotating shaft 231 can freely pass through the lifting table 41, if the lifting table 41 is located on the path of the clamping plate rotating shaft 231, a through hole can be formed at a corresponding position, so as to avoid interference with lifting of the lifting table 41 and rotation of the clamping plate rotating shaft 231, and the path of the clamping plate rotating shaft 231 can be avoided by setting the area of the lifting table 41, which is not repeated.
In a specific technical scheme, the transmission mechanism 432 includes a central shaft 4321 and two side shafts 4322 symmetrically disposed at two ends of the central shaft 4321, a first conical gear 4323 is disposed at a center of the central shaft 4321, second conical gears 4324 are disposed at two ends of the central shaft 4321, a third conical gear 4325 meshed with the second conical gear 4324 is disposed at a center of the side shaft 4322, fourth conical gears 4326 are disposed at two ends of the side shaft 4322, a fifth conical gear 4327 meshed with the fourth conical gear 4326 is disposed on the bidirectional screw 433, and an output end of the third servo motor 431 is connected with a sixth conical gear 4328 meshed with the first conical gear 4323. The transmission mechanism 432 of the present invention is not limited to the above-described structure, and a structure capable of driving the four bidirectional screw rods 433 to rotate synchronously is applicable to the present invention.
In this embodiment, the elevating platform mechanism 4 can drive the photographing assembly 5 and the pressing rotation mechanism 6 to move relative to the conveyor belt mechanism 3 in the vertical direction. When the lifting table 41 is lifted, the nut seat 434 is lowered, the lifting table 41 drives the shooting assembly 5 and the extrusion rotating mechanism 6 to move up to the target detection position, the nut seat 434 drives the conveyor belt mechanism 3 to move down, the conveyor belt 31 is separated from the tire, and the phenomenon of friction between the conveyor belt 31 and the tire during rotation is eliminated.
Example 4
With reference to fig. 1-13, this embodiment provides a tire appearance detecting device, and optimizes the structure of the extrusion rotating mechanism 6 based on embodiment 3, specifically the technical scheme is as follows,
the extrusion rotary mechanism 6 comprises a rotary drum 61 and a rotary control 62, wherein the rotary drum 61 is rotatably arranged on the mounting frame 42, the rotary control 62 is used for driving the rotary drum 61 to rotate, a plurality of rectangular holes 611 are formed in the circumference of the rotary drum 61 at equal intervals, a telescopic control 64 is arranged on the mounting frame 42, the telescopic control 64 is connected with a plurality of radial telescopic rods 63 which are arranged in the circumference of the rotary drum at equal intervals, and the radial telescopic rods 63 slidably penetrate through the rectangular holes 611. In the above technical scheme, radial telescopic rod 63 can radially extend under the control of flexible controlling part 64, until the inner wall of butt and extrusion tire, and rotatory controlling part 62 can drive rotary drum 61 rotation, can drive radial telescopic rod 63 rotation when rotary drum 61 rotates, drives the tire through radial telescopic rod 63 and takes place the rotation.
In a specific embodiment, the rotation control 62 includes a gear ring 621 disposed on the drum 61 and a fourth servo motor 622 disposed on the mounting frame 42, and an output end of the fourth servo motor 622 is connected to a second gear 623 meshed with the gear ring 621; the radial telescopic rod 63 comprises a first rectangular rod 631 and a second rectangular rod 632 which are hinged, the free ends of the second rectangular rod 632 are slidably inserted into a third rectangular rod 633, a two-way memory spring 635 connected with a power supply is arranged between the second rectangular rod 632 and the third rectangular rod 633, the free ends of the third rectangular rod 633 are connected with a antiskid plate 634 capable of abutting against the inner wall of a tire, and the widths and the heights of the first rectangular rod 631, the second rectangular rod 632 and the third rectangular rod 633 are consistent with those of the rectangular hole 611. In the above-mentioned technical solution, since the widths and heights of the first rectangular rod 631, the second rectangular rod 632 and the third rectangular rod 633 are consistent, a straight rod sliding through the rectangular hole 611 can be formed, the antiskid plate 634 abuts against the inner wall of the tire, the contact area between the radial expansion rod 63 and the tire is increased, the friction force between the radial expansion rod 63 and the inner wall of the tire is increased while the tire is extruded, the stability of the tire during rotation can be improved, and the antiskid plate 634 is preferably made of a material with a certain elasticity, such as hard rubber. By powering on and off the two-way memory spring 635 to make it enter the contracted state and the extended state, in the initial state, the two-way memory spring 635 is in the contracted state, generating a tensile force to the third rectangular rod 633, making the length between the second rectangular rod 632 and the third rectangular rod 633 shortest, in the detection state, the two-way memory spring 635 is in the extended state, generating a pushing force to the third rectangular rod 633, making the length between the second rectangular rod 632 and the third rectangular rod 633 longest, improving the radial extrusion force of the radial expansion rod 63 to the tire, increasing the deformation of the tire, being favorable for improving the detection effect.
In a specific technical solution, four right angles of the free end of the second rectangular rod 632 are respectively provided with a rectangular slot 6321, a circular slot 6322 is provided in the center, a two-way memory spring 635 is fixedly provided in the circular slot 6322, one end of the third rectangular rod 633 is provided with a rectangular insert rod 6331 corresponding to the rectangular slot 6321 and a circular insert rod 6332 corresponding to the circular slot 6322, the circular insert rod 6332 is connected with the two-way memory spring 635, and the anti-skid plate 634 is in a circular arc shape, and its height is greater than that of the rectangular hole 611.
In a specific technical scheme, the telescopic control 64 comprises a vertical guide rod 641 and a cylinder 644 which are fixedly arranged on the mounting frame 42, a cam 642 is slidably arranged on the guide rod 641, the bottom of the cam 642 is connected with a piston rod of the cylinder 644, a limiting block 6411 is arranged at the top of the guide rod 641, the cam 642 comprises a circular part 6421 coaxial with the rotary drum 61 and a protruding part 6422 facing the deformation of the tire, a sliding rail 6423 is circumferentially arranged on the cam 642, a plurality of sliding blocks 643 are arranged on the sliding rail 6423, and the sliding blocks 643 are hinged with the free end of the first rectangular rod 631. In the above-described embodiments, the protruding portion 6422 of the cam 642 can increase the deformation amount of the tire detecting portion, thereby improving the detecting effect. The stopper 6411 can prevent the cam 642 from coming out, and in addition, can play a role in positioning, so that when the cam 642 rises to the highest point, the first rectangular rod 631 and the second rectangular rod 632 just form a straight rod.
The working principle and working process of the embodiment are as follows: in the initial state, as shown in fig. 11, the two-way memory spring 635 is in a contracted state, and generates a pulling force on the third rectangular rod 633, so that the length between the second rectangular rod 632 and the third rectangular rod 633 is shortest, the antiskid plate 634 is tightly attached to the drum 61, and a circle with the smallest diameter is formed by enclosing, so that the extruding and rotating mechanism 6 can conveniently pass through the sub-opening of the tire; in the detection state, the air cylinder 644 pushes the cam 642 to rise, the hinged end of the cam 642 and the first rectangular rod 631 moves upwards, the first rectangular rod 631 pushes the second rectangular rod 632 to extend to the outer side of the rectangular hole 611 in the upward movement process until the first rectangular rod 631, the second rectangular rod 632 and the third rectangular rod 633 form a straight rod pushing the inner wall of the tire, at this time, the bidirectional memory spring 635 is controlled to enter the extension state, thrust is generated on the third rectangular rod 633, as shown in fig. 13, the length between the second rectangular rod 632 and the third rectangular rod 633 is longest, the radial extrusion force of the radial expansion rod 63 on the tire is improved, the deformation of the tire is increased, and the detection effect is improved.
In this embodiment, the rotation control 62 of the extrusion rotation mechanism 6 can drive the radial telescopic rod 63 to rotate by controlling the rotation of the rotary drum 61, the telescopic control 64 can control the radial length of the radial telescopic rod 63 by controlling the lifting of the cam 642, the detection stability is improved, and the cam 642 can increase the deformation amount of the tire detection position and improve the detection effect.
Example 5
With reference to fig. 1-13, this embodiment provides a tire appearance detecting device, and a rear clamping mechanism 7 is added on the basis of embodiment 4, and the specific technical scheme is as follows,
the rear clamping mechanism 7 is arranged on the mounting frame 42, the rear clamping mechanism 7 comprises a circular arc-shaped rear clamping plate 71, the rear clamping plate 71 is fixedly arranged on the mounting frame 42 through a mounting rod 711 and can be enclosed with two side clamping plates 21 to form a circular shape facing the output direction, a plurality of driving rollers 72 which are rotatably abutted to the tires are vertically arranged on the intrados of the rear clamping plate 71, a roller shaft 721 of the driving rollers 72 penetrates through the bottom of the rear clamping plate 71 and is rotatably arranged on the mounting frame 42, a transmission belt 73 is arranged between adjacent roller shafts 721, a third gear 74 is arranged on the roller shaft 721, a fourth gear 75 is rotatably arranged on the mounting frame 42, and the fourth gear 75 is respectively meshed with the third gear 74 and the second gear 623. In the above technical solution, the circular opening formed by the side clamping mechanism 2 and the rear clamping mechanism 7 is the deformation detection position of the tire, so the shooting assembly 5 is installed at the circular opening.
In this embodiment, the side clamping mechanism 2 and the rear clamping mechanism 7 jointly clamp and hold the tire to form a circle with an opening facing the output direction, so that the deformation of the tire can be concentrated in a detection area (namely, an opening), unnecessary deformation is reduced, and the detection stability and the detection effect are improved; in addition, the fourth servo motor 622 of the extrusion rotating mechanism 6 can drive the drum 61 of the extrusion rotating mechanism 6 and the driving roller 72 of the rear clamping mechanism 7 to rotate at the same time, so that the tire rotation stability is further improved.
Example 6
With reference to fig. 1-13, this embodiment provides a method for using a tire appearance detecting device, including the following steps:
s100, mounting a tire appearance detection device on a tire conveying line, so that the conveying direction of the conveying belt 31 of the conveying belt mechanism 3 is consistent with that of a tire; in the initial state, the lifting table mechanism 4 is at the lowest point, and the shooting assembly 5 and the extrusion rotating mechanism 6 are both positioned below the conveyor belt 31;
step S200, after the tire is conveyed to a target position, the conveyor belt 31 stops running, the side clamping mechanisms 2 clamp the tire tightly from two sides in the conveying direction, and the tire is automatically centered while being tightly clamped;
step S300, after clamping is finished, the lifting table mechanism 4 is lifted to a target position, at the moment, the shooting assembly 5 and the extrusion rotating mechanism 6 are moved to the position above the conveyor belt 31, the extrusion rotating mechanism 6 radially expands, the tire is extruded from the inside of the tire, radial deformation force is generated while the tire is driven to rotate, the part of the tire, which is not contacted with the side clamping mechanism 2, is deformed, and the shooting assembly 5 is aligned to the deformed part for shooting;
and S400, after the detection is finished, the extrusion rotating mechanism 6 stops rotating, the tire is radially retracted and reset and released, then the lifting table mechanism 4 descends to the initial position, the side clamping mechanism 2 releases the tire, the conveyor belt mechanism 3 starts to operate, and the tire is conveyed to the conveying line.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the scope of the present invention.
Claims (9)
1. The tire appearance detection device comprises a bench (1), and is characterized in that a side clamping mechanism (2) capable of rotatably clamping a part of a tire from two sides is arranged on the bench (1), a conveyor belt mechanism (3) is arranged in the center, the conveyor belt mechanism (3) comprises two conveyor belts (31) arranged at intervals, a lifting table mechanism (4) is arranged below the conveyor belt mechanism (3), a shooting assembly (5) and an extrusion rotating mechanism (6) capable of penetrating through the interval between the two conveyor belts (31) are arranged on the lifting table mechanism (4), and the extrusion rotating mechanism (6) can radially expand the extruded tire from the inside of the tire and drive the tire to rotate, so that the tire which is not in contact with the side clamping mechanism (2) is deformed partially;
the side clamping mechanism (2) comprises two side clamping plates (21) which are rotatably arranged on two sides of the conveying belt mechanism (3), the side clamping plates (21) are arc-shaped coaxial with the tire, a plurality of driven rollers (22) which are rotatably abutted to the tire are vertically arranged on the intrados, and a clamping driving mechanism (23) for driving the two side clamping plates (21) to simultaneously rotate relatively is arranged on the rack (1).
2. Tyre appearance detection device according to claim 1, characterized in that the said bench (1) comprises in sequence from bottom to top a base (11), an upright (12) and two parallel spaced side platens (13), the said side platens (13) are provided with the said side clamping mechanism (2), the two said side platens (13) form a V-shaped guiding opening facing the tyre inlet; the shooting assembly (5) comprises a camera (51) and an illuminating lamp (52) which can be aligned with the deformation of the tire; the side clamping mechanism (2), the conveyor belt mechanism (3), the lifting table mechanism (4), the shooting assembly (5) and the extrusion rotating mechanism (6) are electrically connected with the controller.
3. Tyre appearance inspection device according to claim 2, characterized in that said conveyor belt mechanism (3) comprises two conveyor belts (31), each conveyor belt (31) being connected to a driving pulley (32) and to a driven pulley (33), respectively, said driving pulley (32) being fixed to a driving shaft (34), said driven pulley (33) being fixed to a driven shaft (35), said driving shaft (34) being connected to a second servomotor (36).
4. A tyre appearance inspection device according to claim 3, characterized in that the lifting table mechanism (4) comprises a rectangular lifting table (41), the lifting table (41) is provided with a mounting frame (42) capable of passing through the interval between two conveyor belts (31), and the lifting table (41) is connected with a lifting driving mechanism (43); the lifting driving mechanism (43) comprises a third servo motor (431) arranged at the bottom of the rack (1), the third servo motor (431) drives four vertically arranged bidirectional screws (433) to synchronously rotate through a transmission mechanism (432), the bidirectional screws (433) are rotatably arranged on the rack (1), screw threads at the upper part are connected with nut seats (434), screw threads at the lower part are connected with right angles of the lifting table (41), and a driving shaft (34) and a driven shaft (35) are respectively arranged between the two nut seats (434).
5. Tyre appearance inspection device according to claim 4, characterized in that the extrusion rotation mechanism (6) comprises a rotary drum (61) rotatably arranged on the mounting frame (42) and a rotation control (62) for driving the rotary drum to rotate, a plurality of rectangular holes (611) are formed in the rotary drum (61) at equal intervals in circumference, a telescopic control (64) is arranged on the mounting frame (42), the telescopic control (64) is connected with a plurality of radial telescopic rods (63) arranged at equal intervals in circumference, and the radial telescopic rods (63) slidably penetrate through the rectangular holes (611).
6. Tyre appearance inspection device according to claim 5, characterized in that said rotation control (62) comprises a toothing (621) provided on said drum (61) and a fourth servomotor (622) provided on said mounting frame (42), the output of said fourth servomotor (622) being connected to a second gear (623) engaged with said toothing (621); radial telescopic link (63) are including articulated first rectangle pole (631) and second rectangle pole (632), the free end slip grafting third rectangle pole (633) of second rectangle pole (632), be equipped with between second rectangle pole (632) and third rectangle pole (633) with the continuous two-way memory spring (635) of power, the free end connection of third rectangle pole (633) can the antiskid ribbed tile (634) of butt tire inner wall, the width and the height of first rectangle pole (631), second rectangle pole (632) and third rectangle pole (633) are unanimous with rectangular hole (611).
7. Tyre appearance inspection device according to claim 6, characterized in that the telescopic control (64) comprises a vertical guide bar (641) and a cylinder (644) fixedly arranged on the mounting frame (42), a cam (642) is slidingly arranged on the guide bar (641), the bottom of the cam (642) is connected with the piston rod of the cylinder (644), the top of the guide bar (641) is provided with a limit block (6411), the cam (642) comprises a circular part (6421) coaxial with the drum (61) and a protruding part (6422) facing the tyre deformation, a sliding track (6423) is circumferentially arranged on the cam (642), a plurality of sliding blocks (643) are arranged on the sliding track (6423), and the sliding blocks (643) are hinged with the free ends of the first rectangular bars (631).
8. Tyre appearance detection device according to claim 7, characterized in that the mounting frame (42) is provided with a rear clamping mechanism (7), the rear clamping mechanism (7) comprises a circular arc-shaped rear clamping plate (71), the rear clamping plate (71) is fixedly arranged on the mounting frame (42) through a mounting rod (711) and can be enclosed with two side clamping plates (21) to form a circular shape facing the output direction opening, the intrados of the rear clamping plate (71) is vertically provided with a plurality of driving rollers (72) which are rotatably abutted against the tyre, a roller shaft (721) of the driving rollers (72) penetrates through the bottom of the rear clamping plate (71) and is rotatably arranged on the mounting frame (42), a transmission belt (73) is arranged between adjacent roller shafts (721), a third gear (74) is arranged on the roller shaft (721), a fourth gear (75) is rotatably arranged on the mounting frame (42), and the fourth gear (75) is respectively meshed with the third gear (74) and the second gear (623).
9. A method of using a tire appearance inspection apparatus according to claim 8, comprising the steps of:
s100, mounting a tire appearance detection device on a tire conveying line to enable a conveying belt (31) of a conveying belt mechanism (3) to be consistent with the conveying direction of a tire; in the initial state, the lifting table mechanism (4) is at the lowest point, and the shooting assembly (5) and the extrusion rotating mechanism (6) are both positioned below the conveyor belt (31);
step 200, after the tire is conveyed to a target position, the conveyor belt (31) stops running, the side clamping mechanisms (2) clamp the tire tightly from two sides in the conveying direction, and the tire is automatically centered while being tightly clamped;
step S300, after clamping is finished, the lifting table mechanism (4) is lifted to a target position, at the moment, the shooting assembly (5) and the extrusion rotating mechanism (6) are moved to the position above the conveyor belt (31), the extrusion rotating mechanism (6) radially expands to extrude the tire from the inside of the tire, radial deformation force is generated when the tire is driven to rotate, the part of the tire, which is not contacted with the side clamping mechanism (2), is deformed, and the shooting assembly (5) shoots in alignment with the deformed part;
and S400, after the detection is finished, the extrusion rotating mechanism (6) stops rotating, the tire is reset and released by radial retraction, then the lifting table mechanism (4) descends to an initial position, the tire is released by the side clamping mechanism (2), and the conveyor belt mechanism (3) starts to operate so as to convey the tire to the conveying line.
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