Flatness measuring mechanism for carbon fiber plate production

Through the design of a laser triangulation rangefinder and a hydraulic rod combined with a piezoelectric ceramic sheet, efficient flatness measurement of carbon fiber plates is achieved, solving the problems of low efficiency of traditional measurement and easy damage of detection needles, and extending the service life of the detection needles.

CN120685020AInactive Publication Date: 2025-09-23ANHUI ZHUNENG CARBON FIBER MATERIAL CO LTD
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Patent Information

Application Number
CN202510904022.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2025-09-23
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The traditional carbon fiber plate flatness measurement has low efficiency and the detection needle is easily damaged.

Method used

A laser triangulation rangefinder is used for non-contact preliminary detection, combined with a hydraulic rod and piezoelectric ceramic sheet to protect the detection needle, and automatic protection is achieved through the contact and separation of the detection needle and the carbon fiber plate.

Benefits of technology

The work efficiency of carbon fiber plate flatness measurement is improved and the risk of damage to the detection needle is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a flatness measuring mechanism for carbon fiber plate production, and the mechanism comprises a substrate, supporting seats are installed at the corners of the substrate, a connecting seat capable of moving left and right is installed between the two supporting seats, and a fixing seat capable of being adjusted front and back is installed on one side of the connecting seat. A vertical plate capable of moving up and down is arranged on one side of the fixing seat, a measuring mechanism is installed at the bottom of the vertical plate, a clamping mechanism is arranged at the top of the base plate, an open groove is formed between the two opposite supporting seats, and a first threaded rod is rotationally connected into the open groove. According to the invention, the surface of the carbon fiber plate is preliminarily detected through the laser triangulation range finder, so that a normal area on the surface of the carbon fiber plate can be removed in a large range, and a large amount of subsequent point-surface detection work required by workers is reduced; and a large amount of point-surface detection can be simultaneously carried out in a certain area through the detection needles which are arranged at equal intervals, so that the working efficiency of flatness measurement of the carbon fiber plate is greatly improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of flatness detection, in particular to a flatness measuring mechanism for carbon fiber plate production. Background Art

[0002] Carbon fiber board is a high-performance board made of carbon fiber tow as reinforcement material and epoxy resin as matrix, which is compounded by a special process. During the hot pressing process, carbon fiber board is prone to flatness deviation due to factors such as material anisotropy and temperature gradient. Production needs to be interrupted and manual intervention is required to detect the flatness of the carbon fiber board.

[0003] In traditional technology, when measuring the flatness of carbon fiber boards, it is often necessary to use a positioning mechanism to fix the position of the cover plate, and then move the detection needle vertically downward to various positions on the top of the carbon fiber board, and then detect the height of each point to measure its flatness. However, the surface area of ​​the carbon fiber board is large, and the detection time of each point is long, resulting in low efficiency of flatness measurement. In addition, the detection needle is prone to damage due to the needle dropping too high when detecting protruding positions.

[0004] Therefore, it is necessary to provide a flatness measuring mechanism for carbon fiber plate production to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a flatness measuring mechanism for carbon fiber plate production to solve the problems existing in the above-mentioned background technology. The technical solution of the present invention addresses the technical problem that the existing technical solution is too single and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a flatness measuring mechanism for carbon fiber board production, comprising a base plate, support seats installed at the corners of the base plate, a connecting seat that can move left and right installed between two groups of support seats, a fixed seat that can be adjusted forward and backward installed on one side of the connecting seat, a vertical plate that can move up and down is provided on one side of the fixed seat, a measuring mechanism is installed on the bottom of the vertical plate, and a clamping mechanism is provided on the top of the base plate.

[0007] Preferably, a slot is provided between the two groups of support seats, a threaded rod 1 is rotatably connected inside the slot, and a threaded seat fixed to the front and rear ends of the connecting seat is installed on the outer wall of the threaded rod 1.

[0008] Preferably, one side of the threaded rod 1 on the rear side passes through one end of the support seat and is connected to a driving device, and the other side of the two groups of threaded rods 1 pass through the other end of the support seat and are connected to a transmission assembly, and laser triangulation rangefinders are equidistantly arranged at the bottom of the connecting seat.

[0009] Preferably, a fixing plate is installed at the front and rear of one side of the connecting seat, and a threaded rod 2 that passes through the fixing seat is rotatably connected between the two groups of fixing plates. A first bevel gear is sleeved on the front end of the outer wall of the threaded rod 2, and a second bevel gear that is meshed with the first bevel gear is rotatably connected to one side of the connecting seat.

[0010] Preferably, a hydraulic rod is installed on the top of the fixing seat, and the top of the hydraulic rod is connected to a connecting block fixed on one side of the vertical plate.

[0011] Preferably, the measuring mechanism includes a shell installed at the bottom of the vertical plate, piezoelectric ceramic sheets are equidistantly installed at the inner top of the shell, the bottom of the piezoelectric ceramic sheet is connected to spring 1, the bottom of the spring 1 is connected to a miniature piezoelectric sensor, the bottom of the miniature piezoelectric sensor is provided with a detection needle passing through the bottom of the shell, spring 2 is equidistantly installed at the bottom of the shell, and the other end of the spring 2 is connected to the outer wall of the detection needle.

[0012] Preferably, the clamping mechanism includes a groove 1 opened at both ends of the top center of the base plate, the interior of the groove 1 is rotatably connected to a bidirectional screw 1 that penetrates into another group of grooves 1, the outer wall of the bidirectional screw 1 is connected to a threaded plate 1, the top of the threaded plate 1 is connected to a splint 1, grooves 2 are opened at the front and rear ends of the top center of the base plate, the interior of the groove 2 is rotatably connected to a bidirectional screw 2 that penetrates into another group of grooves 2, the outer wall of the bidirectional screw 2 is connected to a threaded plate 2, and the top of the threaded plate 2 is connected to a splint 2.

[0013] Preferably, the depth of the second groove is twice the depth of the first groove, and the second bidirectional screw is arranged at the lower side of the second groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a laser triangulation rangefinder to perform preliminary inspection on the surface of the carbon fiber plate, which can remove a large area of ​​the normal area on the surface of the carbon fiber plate, reducing the need for a large number of subsequent point and surface inspections by the staff. In addition, by using equidistantly arranged detection needles, a large number of point and surface inspections can be performed simultaneously in a certain area, greatly improving the efficiency of measuring the flatness of the carbon fiber plate. The present invention detects the distance between the carbon fiber plate and the laser triangulation rangefinder through the laser triangulation rangefinder, and the initial height of the detection needle corresponds to the maximum extension of the hydraulic rod as known information. At this time, the detection needle can be driven to move downward by a specified distance by controlling the hydraulic rod. At this time, the detection needle is just in contact with the normal plane position of the carbon fiber plate. The protruding position of the carbon fiber plate will cause the detection needle at the corresponding position to have an upward extrusion force, so that the detection needle squeezes the micro piezoelectric sensor to convert current. The generated current is conducted to the piezoelectric ceramic piece through the battery core of the micro piezoelectric sensor. The positive and negative charge centers of the crystal structure inside the piezoelectric ceramic piece undergo relative displacement to form an orderly arranged dipole, causing the material to shorten and drive the detection needle at the corresponding position to move upward, thereby protecting the detection needle and preventing the detection needle from being damaged by a large extrusion force. When the detection needle loses the extrusion force, the piezoelectric ceramic piece recovers and drives the detection needle to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a three-dimensional Figure 1 ; Figure 2 The present invention is a three-dimensional Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention without the substrate and the support base; Figure 4 It is a schematic diagram of the top view of the structure between the connecting seat and the fixing seat of the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention; Figure 6 Schematic diagram of the separation structure of the clamping mechanism of the present invention; Figure 7 It is a front view structural schematic diagram of the measuring mechanism of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure inside the shell of the present invention.

[0016] In the figure: 1. Base plate; 2. Support seat; 3. Connecting seat; 4. Fixed seat; 5. Vertical plate; 6. Measuring mechanism; 601. Shell; 602. Piezoelectric ceramic piece; 603. Spring 1; 604. Micro piezoelectric sensor; 605. Detection needle; 606. Spring 2; 7. Clamping mechanism; 701. Groove 1; 702. Bidirectional screw 1; 703. Threaded plate 1; 704. Clamping plate 1; 705. Groove 2; 706. Bidirectional screw 2; 707. Threaded plate 2; 708. Clamping plate 2; 8. Slotting; 9. Threaded rod 1; 10. Threaded seat; 11. Driving device; 12. Transmission assembly; 13. Laser triangulation rangefinder; 14. Fixed plate; 15. Threaded rod 2; 16. First bevel gear; 17. Second bevel gear; 18. Hydraulic rod; 19. Connecting block. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0019] See also Figure 1-8 A flatness measuring mechanism for carbon fiber board production includes a base plate 1, support seats 2 are installed at the corners of the base plate 1, a connecting seat 3 that can be moved left and right is installed between two groups of support seats 2, a fixed seat 4 that can be adjusted forward and backward is installed on one side of the connecting seat 3, a vertical plate 5 that can be moved up and down is provided on one side of the fixed seat 4, a measuring mechanism 6 is installed at the bottom of the vertical plate 5, and a clamping mechanism 7 is provided on the top of the base plate 1.

[0020] like Figure 1-8 As shown, a slot 8 is provided between the two sets of support seats 2. The interior of the slot 8 is rotatably connected to a threaded rod 9. The outer wall of the threaded rod 9 is provided with a threaded seat 10 fixed to the front and rear ends of the connecting seat 3. By controlling the rotation of the threaded rod 9, the threaded seat 10 can be controlled to move left and right, thereby driving the connecting seat 3 to move left and right.

[0021] like Figure 1-8As shown, one side of the threaded rod 9 on the rear side passes through one end of the support seat 2 and is connected to a driving device 11, and the other side of the two groups of threaded rods 9 pass through the other end of the support seat 2 and are connected to a transmission component 12. Laser triangulation rangefinders 13 are equidistantly arranged at the bottom of the connecting seat 3. The driving device 11 can drive the threaded rod 9 on the rear side to rotate, and the other group of threaded rods 9 can be synchronously rotated through the transmission component 12. In the process of the connecting seat 3 moving left and right, the carbon fiber plate placed on the top of the substrate 1 is non-contact detected by the set laser triangulation rangefinder 13, and the full-area scanning of the carbon fiber plate is realized in conjunction with the infrared scanner in the prior art, so that the flatness of the carbon fiber plate can be preliminarily detected.

[0022] like Figure 1-8 As shown, a fixing plate 14 is installed at the front and rear of one side of the connecting seat 3, and a threaded rod 2 15 that passes through the fixing seat 4 is rotatably connected between the two sets of fixing plates 14. The front end of the outer wall of the threaded rod 2 15 is sleeved with a first bevel gear 16, and one side of the connecting seat 3 is rotatably connected to a second bevel gear 17 that is meshed with the first bevel gear 16. A preliminary detection is performed by the laser triangulation rangefinder 13. When fluctuations are detected in the local area, the left and right positions of the connecting seat 3 are adjusted by the threaded rod 1 9, and the threaded rod 2 15 is rotated to adjust the front and rear positions of the fixing seat 4. The rotation of the threaded rod 2 15 can be achieved by driving the second bevel gear 17 to rotate and mesh with the first bevel gear 16, and a motor that can drive the second bevel gear 17 to rotate is provided inside the connecting seat 3.

[0023] like Figure 1-8 As shown, a hydraulic rod 18 is installed on the top of the fixed seat 4, and the top of the hydraulic rod 18 is connected to a connecting block 19 fixed on one side of the vertical plate 5. After the horizontal position adjustment is completed, the vertical plate 5 is driven downward by the set hydraulic rod 18 so that the measuring mechanism 6 can perform multi-point measurement on the fluctuation area.

[0024] like Figure 1-8As shown, the measuring mechanism 6 includes a shell 601 installed at the bottom of the vertical plate 5, and a piezoelectric ceramic piece 602 is equidistantly installed at the top of the inner part of the shell 601. The bottom of the piezoelectric ceramic piece 602 is connected to a spring 1 603, and the bottom of the spring 1 603 is connected to a micro piezoelectric sensor 604. The bottom of the micro piezoelectric sensor 604 is provided with a detection needle 605 that passes through the bottom of the shell 601. The bottom of the shell 601 is equidistantly installed with a spring 2 606, and the other end of the spring 2 606 is connected to the outer wall of the detection needle 605. The distance between the carbon fiber plate and the laser triangulation rangefinder 13 is detected by the laser triangulation rangefinder 13, and the initial height of the detection needle 605 is the maximum elongation of the hydraulic rod 18, which corresponds to the known information. At this time, the detection needle 605 can be driven by controlling the hydraulic rod 18. The needle 605 moves downward a specified distance. At this time, the detection needle 605 just contacts the normal plane position of the carbon fiber plate. The protruding position of the carbon fiber plate will cause the detection needle 605 at the corresponding position to have an upward squeezing force, causing the detection needle 605 to squeeze the micro piezoelectric sensor 604 to convert current. The generated current is transmitted to the piezoelectric ceramic piece 602 through the battery core of the micro piezoelectric sensor 604. The positive and negative charge centers of the crystal structure inside the piezoelectric ceramic piece 602 undergo relative displacement, forming an orderly arranged dipole, causing the material to shorten and drive the detection needle 605 at the corresponding position to move upward, providing protection for the detection needle 605 and preventing the detection needle 605 from being damaged by a large squeezing force. When the detection needle 605 loses the squeezing force, the piezoelectric ceramic piece 602 recovers and drives the detection needle 605 to reset.

[0025] like Figure 1-8 As shown, the clamping mechanism 7 includes a groove 1 701 opened at both ends of the top center of the base plate 1, the inner rotation connection of the groove 1 701 is a bidirectional screw 1 702 which penetrates into the interior of another group of grooves 1 701, the outer wall of the bidirectional screw 1 702 is connected to a threaded plate 1 703, and the top of the threaded plate 1 703 is connected to a clamping plate 1 704, and a groove 2 705 is opened at the front and rear ends of the top center of the base plate 1, the inner rotation connection of the groove 2 705 is a bidirectional screw 2 706 which penetrates into the interior of another group of grooves 2 705, the outer wall of the bidirectional screw 2 706 is connected to a threaded plate 2 707, and the top of the threaded plate 2 707 is connected to a clamping plate 2 708. By arranging a motor of the prior art inside the base plate 1, the bidirectional screw 1 702 and the bidirectional screw 2 706 can be driven to rotate, and then the two clamping plates 1 704 can be driven to clamp and fix the left and right positions of the carbon fiber plate, and can be adjusted to the center position, and the two clamping plates 2 708 can clamp and fix the front and back positions of the carbon fiber plate, and the center position can be adjusted.

[0026] like Figure 1-8As shown, the depth of groove 2 705 is twice the depth of groove 1 701, and bidirectional screw 2 706 is arranged on the lower side of groove 2 705. By setting the depth of groove 2 705 to be twice the depth of groove 1 701 and bidirectional screw 2 706 on the lower side of groove 2 705, bidirectional screw 1 702 and bidirectional screw 2 706 do not affect each other.

[0027] Working principle: When in use, the driving device 11 can drive the threaded rod 9 on the rear side to rotate, and the transmission component 12 can synchronously rotate another set of threaded rods 9, and in the process of the connecting seat 3 moving left and right, the carbon fiber plate placed on the top of the base plate 1 is non-contact detected by the provided laser triangulation rangefinder 13, and the infrared scanner in the prior art is used to realize the full-area scanning of the carbon fiber plate, which can preliminarily detect the flatness of the carbon fiber plate. The laser triangulation rangefinder 13 performs preliminary detection. When fluctuations are detected in the local area, the left and right positions of the connecting seat 3 are adjusted by the threaded rod 9, and the threaded rod The second 15 is rotated to adjust the front and rear position of the fixed seat 4. The rotation of the threaded rod 15 can be achieved by driving the second bevel gear 17 to rotate and mesh with the first bevel gear 16, and a motor that can drive the second bevel gear 17 to rotate is provided inside the connecting seat 3. After the horizontal position adjustment is completed, the vertical plate 5 is driven downward by the hydraulic rod 18 so that the measuring mechanism 6 can perform multi-point measurement on the fluctuation area. The distance between the carbon fiber plate and the laser triangulation rangefinder 13 is detected by the laser triangulation rangefinder 13, and the initial height of the detection needle 605 is the maximum elongation of the hydraulic rod 18, which corresponds to the known information. When the pressure is too high, the pressure on the micro-piezoelectric sensor 604 is too low to move the needle 605 downwards. The pressure on the micro-piezoelectric sensor 604 is too high to move the needle 605 downwards. When the pressure is too high, the pressure on the micro-piezoelectric sensor 604 is too high to move the needle 605 downwards. When the pressure is too high, the pressure on the micro-piezoelectric sensor 604 is too high to move the needle 605 downwards. When the pressure is too high, the pressure on the micro-piezoelectric sensor 604 is too high to move the needle 605 downwards. The two clamping plates 704 can be used to clamp and fix the left and right positions of the carbon fiber plate, and can be adjusted to the center position. The two clamping plates 708 can clamp and fix the front and back positions of the carbon fiber plate, and can adjust the center position to facilitate subsequent flatness measurement.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A flatness measuring mechanism for carbon fiber plate production, comprising a substrate (1), characterized in that: Support seats (2) are installed at the corners of the substrate (1), and a connecting seat (3) that can be moved left and right is installed between two groups of the supporting seats (2). A fixing seat (4) that can be adjusted forward and backward is installed on one side of the connecting seat (3). A vertical plate (5) that can be moved up and down is provided on one side of the fixing seat (4). A measuring mechanism (6) is installed at the bottom of the vertical plate (5), and a clamping mechanism (7) is provided on the top of the substrate (1).

2. A flatness measuring mechanism for carbon fiber board production according to claim 1, characterized in that: A slot (8) is provided between the two groups of support seats (2), the interior of the slot (8) is rotatably connected to a threaded rod (9), and the outer wall of the threaded rod (9) is provided with a threaded seat (10) fixed to the front and rear ends of the connecting seat (3).

3. The flatness measuring mechanism for carbon fiber board production according to claim 2, characterized in that: One side of the threaded rod (9) on the rear side passes through the support seat (2) and is connected to a driving device (11) at one end. The other sides of the two groups of threaded rods (9) pass through the support seat (2) and are connected to a transmission assembly (12) at the other end. Laser triangulation distance meters (13) are equidistantly arranged at the bottom of the connecting seat (3).

4. The flatness measuring mechanism for carbon fiber board production according to claim 1, characterized in that: A fixing plate (14) is installed at the front and rear of one side of the connecting seat (3); a second threaded rod (15) penetrating the fixing seat (4) is rotatably connected between two sets of the fixing plates (14); a first bevel gear (16) is sleeved on the front end of the outer wall of the second threaded rod (15); and a second bevel gear (17) meshing with the first bevel gear (16) is rotatably connected to one side of the connecting seat (3).

5. The flatness measuring mechanism for carbon fiber board production according to claim 1, characterized in that: A hydraulic rod (18) is installed on the top of the fixing seat (4), and the top of the hydraulic rod (18) is connected to a connecting block (19) fixed to one side of the vertical plate (5).

6. The flatness measuring mechanism for carbon fiber board production according to claim 1, characterized in that: The measuring mechanism (6) includes a shell (601) installed at the bottom of the vertical plate (5), a piezoelectric ceramic piece (602) is equidistantly installed on the top of the inner portion of the shell (601), a spring 1 (603) is connected to the bottom of the piezoelectric ceramic piece (602), a micro piezoelectric sensor (604) is connected to the bottom of the spring 1 (603), a detection needle (605) is provided at the bottom of the micro piezoelectric sensor (604) and passes through the bottom of the shell (601), a spring 2 (606) is equidistantly installed at the bottom of the shell (601), and the other end of the spring 2 (606) is connected to the outer wall of the detection needle (605).

7. The flatness measuring mechanism for carbon fiber board production according to claim 1, characterized in that: The clamping mechanism (7) includes a groove 1 (701) provided at both ends of the top center of the base plate (1), the interior of the groove 1 (701) is rotatably connected to a bidirectional screw 1 (702) that passes through the interior of another group of grooves 1 (701), the outer wall of the bidirectional screw 1 (702) is connected to a threaded plate 1 (703), the top of the threaded plate 1 (703) is connected to a clamping plate 1 (704), the front and rear ends of the top center of the base plate (1) are provided with a groove 2 (705), the interior of the groove 2 (705) is rotatably connected to a bidirectional screw 2 (706) that passes through the interior of another group of grooves 2 (705), the outer wall of the bidirectional screw 2 (706) is connected to a threaded plate 2 (707), and the top of the threaded plate 2 (707) is connected to a clamping plate 2 (708).

8. The flatness measuring mechanism for carbon fiber board production according to claim 7, characterized in that: The depth of the second groove (705) is twice the depth of the first groove (701), and the second bidirectional screw (706) is arranged on the lower side of the second groove (705).