CN117928454B - Plate thickness detection device and detection method - Google Patents
Plate thickness detection device and detection method Download PDFInfo
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- CN117928454B CN117928454B CN202410338142.2A CN202410338142A CN117928454B CN 117928454 B CN117928454 B CN 117928454B CN 202410338142 A CN202410338142 A CN 202410338142A CN 117928454 B CN117928454 B CN 117928454B
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Abstract
The invention discloses a device and a method for detecting the thickness of a plate, and relates to the technical field of thickness detection; in order to solve the problem of accuracy; the device comprises a conveying mechanism and a sorting table, wherein the conveying mechanism and the sorting table are arranged on the ground, a supporting column is fixed at the top of the sorting table through bolts, a rotating frame is matched with the top of the supporting column through a rotary driving mechanism in a transmission mode, a telescopic device is fixed at the top of the rotating frame through bolts, a measuring mechanism is arranged at the telescopic end of the telescopic device, the measuring mechanism consists of two groups of measuring components, and the two groups of measuring components are rotationally connected through a connecting rod. According to the invention, two groups of measuring assemblies are arranged, each group of measuring assemblies is provided with a plurality of contacts as detection points, and then a pressure sensor is used as a 'sensor' for indirectly detecting displacement, so that both sides of a plate are measurement points, and a calculation method for removing the maximum value and the minimum value is adopted in combination calculation, so that the influence of bulges and pits is eliminated, and the final detection result accuracy is higher.
Description
Technical Field
The invention relates to the technical field of thickness detection, in particular to a plate thickness detection device and a detection method.
Background
A panel is a flat rectangular sheet of building material commonly used in the construction industry as a component of a wall, ceiling or floor. It may also refer to a forged, rolled or cast sheet metal. The plates can be divided into thin plates, middle plates, thick plates and extra thick plates according to the thickness, the plates are flat in appearance, the width-to-thickness ratio is large, and the surface area per unit volume is also large. The appearance characteristics lead the plate to be widely applied in the aspects of chemical industry, containers, buildings, metal products, metal structures and the like, and the thickness of the plate has great influence on the quality of the plate, so the thickness of the plate needs to be detected before leaving a factory.
Through retrieving, chinese patent publication No. CN220083885U discloses a panel thickness detection device, including detecting the workstation, the top symmetry of detecting the workstation front end is fixed with thickness detection measuring board, detects the inside top of workstation and is equipped with the measuring board, and the front end symmetry of measuring board is fixed with the location slider, and the outer wall symmetry of location slider front end is fixed with the measurement pointer, and the rear end activity of measuring board is equipped with movable measuring board, and movable measuring board is kept away from the one end fixed mounting of measuring board and is had the spacing push pedal to panel spacing.
The above patent suffers from the following disadvantages: the bottom support is adopted, and then the movement stroke of the top and the relative displacement of the movable plate are utilized for measurement, but the measurement result of the method is the sum of the thickness of the plate and the upper and lower surface tolerance upper limits due to the fact that the surface of the plate is uneven, so that the measurement accuracy is low.
Therefore, the invention provides a device and a method for detecting the thickness of a plate.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a plate thickness detection device and a detection method.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A plate thickness detection device comprises a conveying mechanism and a sorting table which are arranged on the ground,
The top of the sorting table is fixedly provided with a supporting column through a bolt, the top of the supporting column is matched with a rotating frame through a rotary driving mechanism in a transmission way, the top of the rotating frame is fixedly provided with a telescopic device through a bolt, and the telescopic end of the telescopic device is provided with a measuring mechanism;
the measuring mechanism consists of two groups of measuring components, the two groups of measuring components are rotationally connected through a connecting rod, the outer wall of the measuring component at the top is rotationally connected with a connecting rod I, the measuring component at the bottom is rotationally connected with the other end of the connecting rod I, and the side wall of the measuring component at the top is fixedly provided with a plurality of suckers through a supporting block;
The measuring assembly comprises a measuring seat and a measuring cavity formed in the inner wall of the measuring seat, the inner wall of the measuring cavity is connected with a measuring piston in a sliding manner, one end of the measuring piston is fixedly provided with a contact through a bolt, the other end of the measuring piston is connected with a pressure sensor through a spring I, and the pressure sensor is fixed on the inner wall of the measuring cavity;
The thickness D of the plate is Wherein/>，/>Wherein/>Is the sum of the displacement of all contacts in the same group,/>Respectively the maximum value and the minimum value of displacement in one group of contacts,/>And n is the number of the contacts in one group, and L is the distance between the two groups of contacts in an unmeasured state.
Preferably: the side wall of the measuring seat at the top is provided with a winding drum which is connected with a first connecting rod through a connecting shaft, the opposite side of the winding drum and the measuring seat is buckled with a spiral spring, the outer wall of the winding drum is wound with a twisted rope, and the other end of the twisted rope is fixed on the outer wall of the bottom of the rotating frame.
Further: the rotary driving mechanism comprises a hollow shaft, a sliding shaft, a motor and a driving shaft, wherein the hollow shaft is fixed on the inner side wall of the rotary frame and is rotationally connected with the supporting column, the sliding shaft is only axially and slidably connected with the inner wall of the hollow shaft, the motor is fixed on the inner wall of the supporting column through a bolt, the driving shaft is connected with the outer wall of an output shaft of the motor through a coupling, and three groups of gear sets which are not meshed at the same time are arranged on the outer wall of the sliding shaft and the outer wall of the driving shaft.
Based on the scheme: the transmission ratios of the three groups of gear sets are arranged in an equal-difference array from one end to the other end.
Among the foregoing, the preferred one is: the inner wall of the hollow shaft is provided with a flat key groove, the outer wall of the sliding shaft is welded with a flat key protrusion which is in sliding fit with the flat key groove, the side wall of the hollow shaft is connected with three groups of arc head limiting blocks in a sliding manner, and the arc head limiting blocks are connected to the inner wall of the hollow shaft through springs II.
As a further scheme of the invention: the end of the sliding shaft is buckled with a spring III, and the other end of the spring III is buckled on the inner wall of the hollow shaft.
Simultaneously, the inner wall of measuring the seat has seted up the response chamber, and response chamber and measurement chamber are through intercommunication chamber intercommunication, and the inner wall sliding fit in response chamber has the response piston, and response chamber and hollow shaft pass through the hose intercommunication.
As a preferred embodiment of the present invention: the conveying mechanism comprises a conveyor, a second baffle plate and a first baffle plate, wherein the second baffle plate is connected to the side wall of the conveyor in a sliding mode, and the first baffle plate is connected to the side wall of the conveyor in a rotating mode.
Meanwhile, the second baffle plate is elastically connected to the inner wall of the second baffle plate through a fourth spring, and a rotating arm is welded on the side wall of the first baffle plate.
As a more preferable scheme of the invention: the other end of the rotating arm is rotationally connected with a second connecting rod, and the other end of the second connecting rod is rotationally connected with the outer wall of the second baffle.
The beneficial effects of the invention are as follows:
1. according to the invention, two groups of measuring assemblies are arranged, each group of measuring assemblies is provided with a plurality of contacts as detection points, and then a pressure sensor is used as a 'sensor' for indirectly detecting displacement, so that both sides of a plate are measurement points, and a calculation method for removing the maximum value and the minimum value is adopted in combination calculation, so that the influence of bulges and pits is eliminated, and the final detection result accuracy is higher.
2. According to the invention, the plurality of contacts are arranged in each group of measuring components to serve as detection points, so that a plurality of thickness readings are provided for the surface of the plate, and the surface flatness of the plate can be indirectly reflected according to the displacement difference between the plurality of contacts, so that the functionality is increased.
3. According to the invention, by arranging the scroll spring, the winding drum and the rope, the telescopic device can drive one group of measuring seats to lift and the other group of measuring seats to synchronously rotate, so that the power is integrated on the basis of ensuring reliable avoidance and material taking, the power arrangement is simplified, and the linkage is increased.
4. According to the invention, the support column and the rotating frame are driven by the rotating frame, so that after the thickness of the plate is detected, the rotating frame is driven to rotate by different angles according to the thickness of the plate or the thickness of the plate, and the plates with different thickness ranges are placed at different positions of the sorting table, so that sorting operation is realized.
5. According to the invention, the transmission ratio of the motor to the rotating frame is changed through three groups of different gear sets, so that when single rotation angles of the motor are the same, different rotation angles of the rotating frame are achieved, and the requirement of sorting operation is met.
6. According to the invention, the first baffle and the second baffle are arranged on the basis of conveying based on the conveyor, so that an automatic material distribution function is realized, the first baffle and the second baffle are mutually linked through the connecting rod, and material distribution driving is realized by utilizing the friction force of plate conveying, so that the power arrangement is further simplified, and the device linkage is increased.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a plate thickness detecting device according to the present invention;
fig. 2 is a schematic structural diagram of a measuring mechanism of a plate thickness detecting device according to the present invention;
FIG. 3 is a schematic diagram of a measurement assembly of a device for detecting thickness of a sheet material according to the present invention;
Fig. 4 is a schematic diagram of the positions of contacts in different states of a plate thickness detection device according to the present invention;
FIG. 5 is a schematic diagram of a rope, spiral spring, and reel structure of a plate thickness detecting device according to the present invention;
fig. 6 is a schematic structural diagram of a rotation driving mechanism of a plate thickness detecting device according to the present invention;
fig. 7 is a schematic diagram of a cross-sectional structure of a hollow shaft and a sliding shaft of a plate thickness detecting device according to the present invention;
Fig. 8 is a schematic structural diagram of a conveying mechanism of a plate thickness detecting device according to the present invention.
In the figure: 1. a conveying mechanism; 2. a sorting table; 3. a support column; 4. a rotary driving mechanism; 5.a rotating frame; 6. a telescopic device; 7. a measuring mechanism; 8. a measurement assembly; 9. a suction cup; 10. a support block; 11. a first connecting rod; 12. a measuring seat; 13. a communication chamber; 14. an induction chamber; 15. a sensing piston; 16. a pressure sensor; 17. a measurement cavity; 18. a first spring; 19. a measuring piston; 20. a contact; 21. a rope; 22. a spiral spring; 23. a reel; 24. a hollow shaft; 25. a slip shaft; 26. a motor; 27. a drive shaft; 28. a gear set; 29. a flat key slot; 30. a flat key protrusion; 31. a second spring; 32. an arc head limiting block; 33. a first baffle; 34. a third spring; 35. a conveyor; 36. a second baffle; 37. a spring IV; 38. a second connecting rod; 39. and a rotating arm.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the specific embodiments.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Example 1: the utility model provides a panel thickness detection device, as shown in fig. 1-8, including setting up in conveying mechanism 1 and the letter sorting platform 2 on ground, the top of letter sorting platform 2 is fixed with support column 3 through the bolt, and the top of support column 3 is through rotatory actuating mechanism 4 transmission cooperation has swivel mount 5, and the top of swivel mount 5 is fixed with expansion bend 6 through the bolt, and the flexible end of expansion bend 6 is provided with measuring mechanism 7.
The measuring mechanism 7 is composed of two groups of measuring assemblies 8, the two groups of measuring assemblies 8 are rotationally connected through a first connecting rod 11, the outer wall of the measuring assembly 8 at the top is rotationally connected with the first connecting rod 11, the measuring assembly 8 at the bottom is rotationally connected to the other end of the first connecting rod 11, and the side wall of the measuring assembly 8 at the top is fixedly provided with a plurality of suckers 9 through supporting blocks 10.
The measuring assembly 8 comprises a measuring seat 12 and a measuring cavity 17 formed in the inner wall of the measuring seat 12, a measuring piston 19 is slidably connected to the inner wall of the measuring cavity 17, a contact 20 is fixed to one end of the measuring piston 19 through a bolt, a pressure sensor 16 is connected to the other end of the measuring piston 19 through a first spring 18, and the pressure sensor 16 is fixed to the inner wall of the measuring cavity 17.
When the device is used, a plate can be placed on the conveying mechanism 1 for conveying, when the plate is conveyed to the bottom of the measuring mechanism 7, the telescopic device 6 controls the measuring mechanism 7 to descend, the measuring assembly 8 at the top is static at the moment, the measuring assembly 8 at the bottom rotates at least ninety degrees until the sucking disc 9 contacts the plate and adsorbs the plate, then the measuring mechanism 7 is wholly ascended, during ascent, the rotating measuring assembly 8 rotates until the detection surfaces of the two groups of measuring assemblies 8 are parallel, at the moment, the plate limits the two groups of contacts 20, so that the contacts 20 shrink towards the inner side of the measuring seat 12, and the measuring piston 19 shrinks, so that the elastic force of the spring I18 to the pressure sensor 16 changes, the displacement of the contacts 20 can be determined according to the pressure change received by the pressure sensor 16, and then the thickness of the plate is determined according to the displacement, and the specific determining method is as follows: let the distance between the two sets of contacts 20 in the unmeasured state be L, and the displacement amounts of the two sets of contacts 20 in the measured state be、/>Then: the thickness D of the plate is/>Wherein/>，/>Wherein/>Is the sum of the displacement amounts of all the contacts 20 in the same group,/>Respectively the maximum and minimum of the displacement in one of the sets of contacts 20,N is the number of contacts 20 in one set, which is the maximum and minimum of the displacement in the other set of contacts 20.
According to the device, two groups of measuring assemblies 8 are arranged, each group of measuring assemblies 8 is provided with a plurality of contacts 20 as detection points, and then the pressure sensor 16 is used as a 'sensor' for indirectly detecting displacement, so that two sides of a plate are both measurement points, and a calculation method for removing the maximum value and the minimum value is adopted in combination calculation, so that the influence of bulges and pits is eliminated, and the final detection result accuracy is higher.
In addition, the device takes the plurality of contacts 20 of each group of measuring assemblies 8 as detection points, so that a plurality of thickness readings are provided for the surface of the plate, the surface flatness of the plate can be indirectly reflected according to displacement differences among the plurality of contacts 20, and the functionality is improved.
To solve the problem of linkage; as shown in fig. 5, a winding drum 23 is disposed on the side wall of the measuring seat 12 at the top, the winding drum 23 is connected to the first connecting rod 11 through a connecting shaft, a spiral spring 22 is fastened on the opposite side of the winding drum 23 and the measuring seat 12, a rope 21 is wound on the outer wall of the winding drum 23, and the other end of the rope 21 is fixed on the outer wall of the bottom of the rotating frame 5.
When the measuring seat 12 at the top is controlled to descend by the telescopic device 6, the twisted rope 21 is stretched relatively at the moment, so that the winding drum 23 rolls the twisted rope 21, the winding drum 23 drives the first connecting rod 11 to rotate, the first connecting rod 11 drives the other group of measuring seats 12 to rotate, and when the telescopic device 6 drives the measuring seat 12 to ascend, the winding drum 23 is reversely rotated under the torsion action of the spiral spring 22, so that the first connecting rod 11 is driven to reversely rotate, and meanwhile, the winding drum 23 rolls the twisted rope 21.
According to the device, the spiral spring 22, the winding drum 23 and the rope 21 are arranged, so that the telescopic device 6 can drive one group of measuring seats 12 to lift and the other group of measuring seats 12 can synchronously rotate, and therefore power synthesis is performed on the basis of ensuring reliable avoidance and material taking, power arrangement is simplified, and linkage is increased.
To solve the rotational drive problem; as shown in fig. 6 and 7, the rotary driving mechanism 4 comprises a hollow shaft 24, a sliding shaft 25, a motor 26 and a driving shaft 27, wherein the hollow shaft 24 is fixed on the inner side wall of the rotary frame 5, the hollow shaft 24 is rotatably connected with the support column 3, the sliding shaft 25 is only connected on the inner wall of the hollow shaft 24 in an axial sliding manner, the motor 26 is fixed on the inner wall of the support column 3 through a bolt, the driving shaft 27 is connected on the outer wall of the output shaft of the motor 26 through a shaft coupling, three groups of gear sets 28 which are not meshed simultaneously are arranged on the outer walls of the sliding shaft 25 and the driving shaft 27, and the transmission ratios of the three groups of gear sets 28 are arranged in an equal-difference sequence from one end to the other end.
When the motor 26 is started, it can drive the drive shaft 27 to rotate, so that the sliding shaft 25 is driven to rotate by one of the gear sets 28, and the hollow shaft 24 and the sliding shaft 25 are driven to rotate.
This device is through passing through swivel mount 5 drive with support column 3 and swivel mount 5 to can be to after the panel thickness detects, according to the size of panel thickness, little or normal the rotatory different angles of drive swivel mount 5, place the different positions in sorting table 2 with different thickness scope panel, realize the letter sorting operation.
Flat key grooves 29 are formed in the inner wall of the hollow shaft 24, flat key protrusions 30 which are in sliding fit with the flat key grooves 29 are welded on the outer wall of the sliding shaft 25, three groups of arc head limiting blocks 32 are connected to the side wall of the hollow shaft 24 in a sliding mode, and the arc head limiting blocks 32 are connected to the inner wall of the hollow shaft 24 through springs II 31.
The end of the sliding shaft 25 is fastened with a third spring 34, and the other end of the third spring 34 is fastened to the inner wall of the hollow shaft 24.
The inner wall of the measuring seat 12 is provided with an induction cavity 14, the induction cavity 14 is communicated with the measuring cavity 17 through a communication cavity 13, the inner wall of the induction cavity 14 is slidably matched with an induction piston 15, and the induction cavity 14 is communicated with a hollow shaft 24 through a hose.
Since the three kinds of plates with small, normal and large thickness need to be sorted after the detection of the thickness of the plate, the different rotation angles of the motor 26 need to be controlled according to the specific thickness detection result, and the calculation and the transmission of the control chain are needed in the process, so that the defects of increasing the calculation amount and delaying the action exist, and the following steps are based on the calculation:
When the detected thickness of the plate is smaller, the displacement of the measuring piston 19 is correspondingly smaller, so that the inner cavity pressure of the measuring cavity 17 and the inner cavity of the communicating cavity 13 are increased to be smaller, the moving amount of the sensing piston 15 is increased, the inner cavity pressure of the sensing cavity 14 is increased to be smaller, the inner cavity pressure of the hollow shaft 24 is smaller, the pressure born by the sliding shaft 25 is smaller, the tension of the springs three 34 and the resistance of the arc head limiting block 32 cannot be overcome by the pressure, the sliding shaft 25 cannot be displaced, a group of gears with the maximum or minimum transmission ratio in the gear group 28 are meshed, when the detected thickness of the plate is normal, the inner cavity pressure of the hollow shaft 24 is increased, the increase is smaller, the limit of one arc head limiting block 32 is overcome by the flat key bulge 30, the position of the other group of arc head limiting blocks 32 is reached, the central group of gear groups 28 are meshed, and when the thickness of the plate is larger, the last group of gear groups 28 are meshed.
The device firstly realizes the change of the transmission ratio from the motor 26 to the rotating frame 5 through three groups of different gear sets 28, thereby reaching different rotating angles of the rotating frame 5 when single rotating angles of the motor 26 are the same, meeting the requirement of sorting operation, in addition, the power switched by the three groups of different gear sets 28 is derived from the displacement of the contact 20, and the displacement of the contact 20 is related to the thickness of the plate, thereby realizing the self-adaptive transmission ratio adjustment according to the thickness of the plate, and simplifying the algorithm control logic.
In order to solve the conveying problem, as shown in fig. 8, the conveying mechanism 1 includes a conveyor 35, a second baffle 36 and a first baffle 33, the specific type of the conveyor 35 is not limited in this embodiment, and may be a belt conveyor or a roller conveyor, the second baffle 36 is slidably connected to a side wall of the conveyor 35, the first baffle 33 is rotatably connected to a side wall of the conveyor 35, the second baffle 36 is elastically connected to an inner wall of the second baffle 36 through a fourth spring 37, a rotating arm 39 is welded to a side wall of the first baffle 33, a second link 38 is rotatably connected to the other end of the rotating arm 39, and the other end of the second link 38 is rotatably connected to an outer wall of the second baffle 36.
When the plate is conveyed on the conveyor 35 and conveyed below the measuring mechanism 7, the plate can strike the second baffle 36, and the friction force between the plate and the conveyor 35 is utilized to apply pressure to the second baffle 36, so that the second baffle 36 slides, the second baffle 36 drives the first baffle 33 to rotate to the inner side of the conveyor 35 through the second connecting rod 38, the subsequent plate is blocked, and the second baffle 36 and the first baffle 33 are reset after the plate below the measuring mechanism 7 is removed.
According to the device, the first baffle plate 33 and the second baffle plate 36 are arranged on the basis of conveying based on the conveyor 35, so that an automatic material distributing function is achieved, the first baffle plate 33 and the second baffle plate 36 are mutually linked through the second connecting rod 38, material distributing driving is achieved through friction force of plate conveying, power arrangement is further simplified, and device linkage is improved.
In this embodiment, when the plate is conveyed to the bottom of the measuring mechanism 7, the plate can strike the second baffle 36, and the friction force between the plate and the conveyor 35 is utilized to apply pressure to the second baffle 36, so that the second baffle 36 slides, the second baffle 36 drives the first baffle 33 to rotate to the inner side of the conveyor 35 through the second connecting rod 38, the subsequent plate is blocked, then the telescopic device 6 controls the measuring seat 12 at the top to descend, the winch rope 21 is relatively stretched at this time, so that the winding drum 23 rolls the winch rope 21, the winding drum 23 drives the first connecting rod 11 to rotate, the first connecting rod 11 drives the other group of measuring seats 12 to rotate until the sucking disc 9 contacts the plate and adsorbs the plate, then the measuring mechanism 7 is wholly lifted, the winding drum 23 is reversely rotated under the torsion action of the scroll spring 22, so as to drive the first connecting rod 11 to reversely rotate, simultaneously, the winding drum 23 winds the twisted rope 21 until the detection surfaces of the two groups of measurement assemblies 8 are parallel, at the moment, the plate limits the two groups of contacts 20, so that the contacts 20 shrink towards the inner side of the measurement seat 12, thereby shrinking the measurement piston 19, thereby changing the elastic force of the spring 18 to the pressure sensor 16, determining the displacement of the contacts 20 according to the pressure change received by the pressure sensor 16, determining the thickness of the plate according to the displacement, when the motor 26 is started, driving the driving shaft 27 to rotate, driving the sliding shaft 25 to rotate through one group of gear sets 28, driving the hollow shaft 24 and the sliding shaft 25 to rotate, particularly, when the detected thickness of the plate is smaller, at the moment, the displacement of the measurement piston 19 is correspondingly smaller, thereby increasing the inner cavity pressure of the measurement cavity 17 and the communication cavity 13 less, thereby increasing the movement amount of the sensing piston 15, the increase of the inner cavity pressure of the sensing cavity 14 is smaller, so that the inner cavity pressure of the hollow shaft 24 is smaller, the sliding shaft 25 is subjected to smaller pressure, at the moment, the pressure cannot overcome the tension of the spring III 34 and the resistance of the arc head limiting block 32, so that the sliding shaft 25 cannot displace, at the moment, a group of gears with the maximum or minimum transmission ratio in the gear group 28 are meshed, when the thickness of a detected plate is normal, the inner cavity pressure of the hollow shaft 24 is increased, the increase is smaller, the flat key bulge 30 overcomes the limit of one arc head limiting block 32, and reaches the position of the other arc head limiting block 32, so that a central group of gear groups 28 are meshed, and when the thickness of the plate is larger, the last group of gear groups 28 are meshed.
Example 2: the detection method of the plate thickness detection device comprises the following steps:
S1: the processed plate is placed on a conveyor 35 to be conveyed until the processed plate is conveyed to a second baffle plate 36 to stop;
S2: the telescopic device 6 drives the measuring mechanism 7 to lift, and the materials are taken and measured;
S3: the motor 26 drives the rotating frame 5 to rotate, and the plates are placed at different positions on the sorting table 2 for sorting according to the measured values of the plates.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The plate thickness detection device comprises a conveying mechanism (1) and a sorting table (2) which are arranged on the ground, and is characterized in that,
The top of the sorting table (2) is fixedly provided with a supporting column (3) through a bolt, the top of the supporting column (3) is in transmission fit with a rotating frame (5) through a rotary driving mechanism (4), the top of the rotating frame (5) is fixedly provided with a telescopic device (6) through a bolt, and the telescopic end of the telescopic device (6) is provided with a measuring mechanism (7);
The measuring mechanism (7) consists of two groups of measuring assemblies (8), the two groups of measuring assemblies (8) are rotationally connected through a first connecting rod (11), the outer wall of the measuring assembly (8) positioned at the top is rotationally connected with the first connecting rod (11), the measuring assembly (8) positioned at the bottom is rotationally connected with the other end of the first connecting rod (11), and a plurality of suckers (9) are fixed on the side wall of the measuring assembly (8) positioned at the top through supporting blocks (10);
the measuring assembly (8) comprises a measuring seat (12) and a measuring cavity (17) formed in the inner wall of the measuring seat (12), the inner wall of the measuring cavity (17) is connected with a measuring piston (19) in a sliding mode, one end of the measuring piston (19) is fixedly provided with a contact (20) through a bolt, the other end of the measuring piston (19) is connected with a pressure sensor (16) through a first spring (18), and the pressure sensor (16) is fixed on the inner wall of the measuring cavity (17);
The thickness D of the plate is Wherein/>，/>Wherein/>Is the sum of the displacement of all the contacts (20) in the same group,/>Respectively the maximum value and the minimum value of displacement in one group of contacts (20)/>, respectivelyFor the maximum value and the minimum value of the displacement in the other group of contacts (20), n is the number of the contacts (20) in one group, and L is the distance between the two groups of contacts (20) in an unmeasured state;
The side wall of the measuring seat (12) at the top is provided with a winding drum (23), the winding drum (23) is connected to the first connecting rod (11) through a connecting shaft, the spiral spring (22) is buckled on the opposite side of the winding drum (23) and the measuring seat (12), a twisted rope (21) is wound on the outer wall of the winding drum (23), and the other end of the twisted rope (21) is fixed on the outer wall of the bottom of the rotating frame (5).
2. A sheet thickness detection apparatus according to claim 1, wherein the rotary driving mechanism (4) comprises a hollow shaft (24), a slip shaft (25), a motor (26) and a driving shaft (27), the hollow shaft (24) is fixed on an inner side wall of the rotary frame (5), and the hollow shaft (24) is rotatably connected to the support column (3), the slip shaft (25) is axially slidably connected to an inner wall of the hollow shaft (24) only, the motor (26) is fixed to an inner wall of the support column (3) by a bolt, the driving shaft (27) is connected to an outer wall of an output shaft of the motor (26) by a coupling, and three sets of gear sets (28) which are not simultaneously meshed are provided on the outer walls of the slip shaft (25) and the driving shaft (27).
3. A sheet thickness detection apparatus according to claim 2, wherein the gear ratios of three sets of said gear sets (28) are arranged in an equi-differential series from one end to the other.
4. The plate thickness detection device according to claim 2, wherein a flat key groove (29) is formed in the inner wall of the hollow shaft (24), flat key protrusions (30) which are in sliding fit with the flat key groove (29) are welded on the outer wall of the sliding shaft (25), three groups of arc head limiting blocks (32) are connected to the side wall of the hollow shaft (24) in a sliding mode, and the arc head limiting blocks (32) are connected to the inner wall of the hollow shaft (24) through springs II (31).
5. The plate thickness detection device according to claim 4, wherein the end of the sliding shaft (25) is fastened with a third spring (34), and the other end of the third spring (34) is fastened to the inner wall of the hollow shaft (24).
6. The plate thickness detection device according to claim 5, wherein the inner wall of the measuring seat (12) is provided with an induction cavity (14), the induction cavity (14) is communicated with the measuring cavity (17) through a communication cavity (13), the inner wall of the induction cavity (14) is slidably matched with an induction piston (15), and the induction cavity (14) is communicated with the hollow shaft (24) through a hose.
7. A sheet thickness detection apparatus according to claim 1, wherein the conveying mechanism (1) comprises a conveyor (35), a second baffle (36) and a first baffle (33), the second baffle (36) is slidably connected to a side wall of the conveyor (35), and the first baffle (33) is rotatably connected to a side wall of the conveyor (35).
8. A plate thickness detecting apparatus according to claim 7, wherein the second baffle plate (36) is elastically connected to an inner wall of the second baffle plate (36) by a fourth spring (37), and a rotating arm (39) is welded to a side wall of the first baffle plate (33).
9. A plate thickness detecting apparatus according to claim 8, wherein the other end of the rotary arm (39) is rotatably connected to a second link (38), and the other end of the second link (38) is rotatably connected to the outer wall of the second baffle (36).
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| CN220195595U (en) * | 2023-05-18 | 2023-12-19 | 苏州菲斯卡精密机械有限公司 | Dimension measuring device |
| CN220322337U (en) * | 2023-07-20 | 2024-01-09 | 沈阳盛华美保温建材有限公司 | Panel thickness detection device |
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| CN101806592A (en) * | 2010-05-06 | 2010-08-18 | 泰兴汤臣压克力有限公司 | On-line double-sided automatic thickness measuring device of organic glass |
| CN212871108U (en) * | 2020-08-06 | 2021-04-02 | 广东稳固检测鉴定有限公司 | Building material detects uses thickness detection device |
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| CN117928454A (en) | 2024-04-26 |
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