A wing plate centering jig

Abstract

The utility model discloses a wing board centering clamp, concretely relates to mechanical processing clamp technical field, including support frame, the both sides of support frame are provided with L type bearing frame, and the opposite side of L type bearing frame is installed with adjustable telescopic mechanism respectively, and the output of telescopic mechanism is connected with the positioning plate, and the vertical surface of positioning plate is used for wing board lateral positioning, and the upside of positioning plate is fixedly installed with support rod through welding, and the top of support rod is movably installed with guide wheel through bearing connection mode, and the top of support rod is movably installed with guide wheel through bearing connection mode, and the top of support rod is movably installed with guide wheel through bearing connection mode, and the top of support rod is movably installed with guide wheel through bearing connection mode, and the top of support rod is movably installed with guide wheel through bearing connection mode, and the top of support rod is movably installed with guide wheel through bearing connection mode, and the top of support rod is movably mounted with the top plate of detachable, through adjustable telescopic mechanism and positioning plate cooperation of both sides L type bearing frame, cooperate extrusion wheel accurate positioning deviation in +1mm, and will locate the precision to +0.05mm, far more than traditional +0.3mm, and extrusion wheel flexible pressure distance conveyor belt 0.5~1mm, make wing board surface damage rate from 5%~8% drop to 0.3% below, improve product quality.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, and more specifically, to a wing plate centering fixture. Background Technology

[0002] In high-end manufacturing sectors such as aerospace and automotive, wing plates are key structural components, and their machining precision directly affects product performance and safety.

[0003] A search revealed that patent publication number CN109571380A discloses a centering fixture worktable, which is equipped with a conveyor belt and two centering fixture tables on both sides of the conveyor belt. The axes of the two centering fixture tables are aligned in a straight line. Each centering fixture table is equipped with a stepper motor, and a cylinder is located below the stepper motor. The cylinder rod is located below the stepper motor and the cylinder is mounted on a frame. The number of the frame, stepper motor, cylinder, and cylinder rod is two. The structures are rigidly connected, resulting in a small size, high reliability, and easy maintenance.

[0004] The existing fixtures adopt a single-sided fixed positioning structure, which relies on manual measurement and adjustment. This makes it difficult to eliminate the centering error caused by material deformation and conveying deviation of the wing plate, and it is difficult to meet the requirements of high-precision processing. In addition, the existing fixtures have poor adaptability. For wing plates with different thicknesses and curvatures, tooling needs to be changed frequently, which increases the downtime of the equipment and makes it difficult to improve production efficiency.

[0005] Therefore, a wing plate centering clamp is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a wing plate centering clamp to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wing plate centering clamp, including a support frame, L-shaped bearing frames on both sides of the support frame, adjustable telescopic mechanisms installed on opposite sides of the L-shaped bearing frames, a positioning plate connected to the output end of the telescopic mechanism, the vertical surface of the positioning plate being used for lateral positioning of the wing plate, a support rod fixedly installed on the upper side of the positioning plate by welding, a guide wheel movably installed at the top of the support rod by bearing connection, a support column fixedly installed above the support frame, a top plate detachably installed on the top of the support column, a cylinder mechanism installed at the bottom of the top plate by bolt fastening, a telescopic rod movably installed at the bottom of the cylinder mechanism, a rectangular positioning frame fixedly installed at the lower end of the telescopic rod by welding, and a pressing wheel movably installed inside the positioning frame by a rotating shaft.

[0008] Preferably, a drive motor is detachably mounted on one side of the support frame via a flange, and the output end of the motor is connected to a drive shaft via a coupling. Both ends of the drive shaft are fixed in the bearing seats of the support frame via bearings, and an annular conveyor belt is sleeved on the outer side of the drive shaft.

[0009] Preferably, a driven shaft is fixedly provided on the inner wall of the support frame, and the two ends of the driven shaft are embedded in the bearing body through a mating fit. The inner ring of the bearing body fits against the outer wall of the driven shaft, and the driven shaft is arranged parallel to the drive shaft directly below it.

[0010] Preferably, the extrusion wheel is positioned at the center of the positioning frame via a rotating shaft. The extrusion wheel is perpendicular to the running direction of the conveyor belt. The installation height of the extrusion wheel is 0.5 to 1 mm above the upper surface of the conveyor belt. At the same time, the horizontal position of the extrusion wheel is strictly in the middle area of ​​the width direction of the conveyor belt, and the deviation from the center line of the conveyor belt is controlled within ±1 mm.

[0011] Preferably, a positioning shaft is installed transversely through the interior of the extrusion wheel, and the two ends of the positioning shaft are connected to the interior of the positioning frame.

[0012] Preferably, the inner wall of the support column is symmetrically provided with limiting grooves on both sides. When the cylinder mechanism drives the guide frame to make vertical lifting and lowering movements, the sliders welded at both ends of the guide frame will be simultaneously embedded in the limiting grooves and guided linearly along the vertical direction of the limiting grooves.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] Compared with existing technologies, this wing plate centering fixture, through the coordinated action of the adjustable telescopic mechanism on both sides of the L-shaped support frame and the positioning plate, combined with the positioning design that the horizontal position of the extrusion wheel is strictly in the middle area of ​​the conveyor belt width direction and the deviation from the center line is controlled within ±1mm, effectively eliminates the centering error caused by wing plate deformation, conveying deviation and other factors, and improves the positioning accuracy to within ±0.05mm, which is significantly better than the accuracy level of ±0.3mm of traditional fixtures, and provides a reliable guarantee for high-precision processing.

[0015] Compared with existing technologies, this wing plate centering fixture is movably set at the center of the positioning frame via a pressing wheel and a positioning shaft, and its installation height is located 0.5-1mm above the upper surface of the conveyor belt. In conjunction with a cylinder mechanism, it drives a telescopic rod to vertically raise and lower the positioning frame, achieving flexible clamping and avoiding indentations or deformations caused by rigid clamping on the wing plate surface. Especially for thin-walled parts and soft material wing plates, it reduces the surface damage rate from 5%-8% in the traditional method to below 0.3%, significantly improving product quality. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the left-side structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the right-side structure of this utility model.

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the structure of A in the middle.

[0020] The attached figures are labeled as follows: 1. Support frame; 2. Motor; 3. Drive shaft; 4. Conveyor belt; 5. Driven shaft; 6. Bearing body; 7. L-shaped support frame; 8. Telescopic mechanism; 9. Positioning plate; 10. Support rod; 11. Guide wheel; 12. Support column; 13. Top plate; 14. Cylinder mechanism; 15. Telescopic rod; 16. Positioning frame; 17. Extrusion wheel; 18. Positioning shaft; 19. Guide frame; 20. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] As attached Figures 1 to 4 The wing plate centering clamp shown includes a support frame 1, with L-shaped support frames 7 on both sides of the support frame 1. Adjustable telescopic mechanisms 8 are installed on opposite sides of the L-shaped support frames 7. The output end of the telescopic mechanism 8 is connected to a positioning plate 9. The vertical surface of the positioning plate 9 is used for lateral positioning of the wing plate. A support rod 10 is fixedly installed on the upper side of the positioning plate 9 by welding. A guide wheel 11 is movably installed on the top of the support rod 10 by bearing connection. A support column 12 is fixedly installed on the upper part of the support frame 1. A top plate 13 is detachably installed on the top of the support column 12. A cylinder mechanism 14 is installed on the bottom of the top plate 13 by bolt fastening. A telescopic rod 15 is movably installed on the bottom of the cylinder mechanism 14. A rectangular positioning frame 16 is fixedly installed on the lower end of the telescopic rod 15 by welding. A pressing wheel 17 is movably installed inside the positioning frame 16 by rotating shaft.

[0024] The system includes: L-shaped support frames 7 on both sides of the support frame 1, with adjustable telescopic mechanisms 8 installed on their opposite sides. The output end is connected to a positioning plate 9, allowing for flexible adjustment of the positioning plate 9's position according to the actual size of the wing plate, achieving lateral positioning of the wing plate. This effectively adapts to the processing needs of wing plates of different specifications, improving the equipment's versatility. A guide wheel 11 is movably mounted on the top of the support rod 10 welded to the upper side of the positioning plate 9. During wing plate conveying, the guide wheel 11 reduces friction, ensuring smooth and stable movement of the wing plate, minimizing conveying deviations, and guaranteeing positioning accuracy. A top plate 13 is detachably installed on the top of the support column 12 above the support frame 1, facilitating equipment installation, maintenance, and repair. A cylinder mechanism 14 is installed at the bottom of the top plate 13, with a rectangular positioning frame 16 welded to the lower end of its telescopic rod 15. An extrusion wheel 17 is located inside the positioning frame 16. The cylinder mechanism 14 drives the telescopic rod 15 to move the extrusion wheel 17 vertically, achieving vertical clamping of the wing plate. This ensures stable wing plate position during processing, improves processing accuracy, provides strong support for high-quality wing plate processing, and comprehensively improves production efficiency and product quality.

[0025] Example 2

[0026] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0027] In a preferred embodiment, a drive motor 2 is detachably mounted on one side of the support frame 1 via a flange. The motor 2 adopts servo control technology and has adjustable speed and overload protection functions. The output end of the motor 2 is connected to the drive shaft 3 via a coupling. Both ends of the drive shaft 3 are fixed in the bearing seats of the support frame 1 by bearings. An annular conveyor belt 4 is sleeved on the outside of the drive shaft 3. The surface of the conveyor belt 4 has anti-slip texture to ensure the stability of the wing plate during transport. The inner side of the conveyor belt 4 and the drive shaft 3 form a closed-loop transmission structure. The bidirectional transport of the wing plate is realized by controlling the forward and reverse rotation of the motor 2.

[0028] In a preferred embodiment, the inner wall of the support frame 1 is symmetrically provided with two sets of bearing seats by welding. The two ends of the driven shaft 5 are fitted into the bearing body 6. The inner ring of the bearing body 6 fits against the outer wall of the driven shaft 5, and the outer ring is fixed in the bearing seat by a snap ring. The driven shaft 5 is arranged parallel to the drive shaft 3 directly below it. The axis of the driven shaft 5 and the drive shaft 3 maintain a coaxiality deviation of less than 5mm. As the tension support end of the conveyor belt 4, it together with the drive shaft 3 forms a closed-loop transmission system, so that the conveyor belt 4 maintains a stable tension state during the conveying of the wing plate.

[0029] In a preferred embodiment, the extrusion roller 17 is positioned at the center of the positioning frame 16 via a rotating shaft. The extrusion roller 17 is perpendicular to the running direction of the conveyor belt 4 to ensure uniform vertical pressure is applied to the wing plate. The installation height of the extrusion roller 17 is 0.5 to 1 mm above the upper surface of the conveyor belt 4, which ensures effective clamping force on the wing plate placed on the conveyor belt 4 while avoiding deformation of the conveyor belt 4 due to excessive extrusion. At the same time, the horizontal position of the extrusion roller 17 is strictly in the middle area of ​​the width direction of the conveyor belt 4, and the deviation from the center line of the conveyor belt 4 is controlled within ±1 mm to ensure that the wing plate remains aligned during the conveying process and to prevent deviation.

[0030] In a preferred embodiment, the lateral center of the extrusion roller 17 passes through the positioning shaft 18, and both ends of the positioning shaft 18 extend to the side wall of the positioning frame 16. The extrusion roller 17 is reliably connected to the positioning frame 16 through a deep groove ball bearing with locking function, so that the extrusion roller 17 can rotate freely around the positioning shaft 18 and maintain a stable installation position, ensuring that the pressure applied to the wing plate is uniform and continuous.

[0031] As a preferred embodiment, the inner walls of the support column 12 are symmetrically provided with limiting grooves 20, which not only ensures the smoothness of the guide frame 19 when moving up and down, but also effectively eliminates lateral sway. When the cylinder mechanism 14 drives the guide frame 19 to make vertical lifting and lowering movements, the sliders welded at both ends of the guide frame 19 will be embedded into the limiting grooves 20 at the same time and be guided in a straight line along the vertical direction of the limiting grooves 20. Rubber buffer blocks are also added to the upper and lower ends of the limiting grooves 20 to prevent the guide frame 19 from rigidly colliding with the support column 12 when it moves to the limit position. At the same time, the surface of the groove wall is treated with hard chrome plating to improve wear resistance and service life.

[0032] The working process of this utility model is as follows: In use, firstly, the drive motor 2 is detachably installed on one side of the support frame 1 via a flange. The output end of the motor 2 is connected to the drive shaft 3 via a coupling. Both ends of the drive shaft 3 are fixed in the bearing seats of the support frame 1 using bearings. Simultaneously, the driven shaft 5 is fixed on the inner wall of the support frame 1, parallel to the drive shaft 3 and directly below it. Both ends of the driven shaft 5 are embedded in the bearing body 6. Then, the annular conveyor belt 4 is fitted over the outside of the drive shaft 3. Next, the drive motor 2 is started, driving the drive shaft 3 to rotate, which in turn drives the annular conveyor belt 4 to rotate. The wing plate to be processed is placed on the conveyor belt 4, and the wing plate moves with the conveyor belt 4. Then, the adjustable telescopic mechanism 8 on the L-shaped support frames 7 on both sides of the support frame 1 is activated, and its output end pushes the positioning plate 9 to move. The vertical surface of the positioning plate 9 moves from the side... The wing plate is positioned, and the guide wheel 11 at the top of the support rod 10 on the upper side of the positioning plate 9 can assist the wing plate to move smoothly. Next, the top plate 13 is detachably installed on the top of the support column 12, and the cylinder mechanism 14 is fastened to the bottom of the top plate 13 by bolts. The cylinder mechanism 14 drives the telescopic rod 15 to drive the rectangular positioning frame 16 to descend. The extrusion wheel 17, which is movably set inside the positioning frame 16 through the rotating shaft, also descends. Since the extrusion wheel 17 is installed in the center of the positioning frame 16 through the positioning shaft 18, and its installation height is located 0.5 to 1 mm above the upper surface of the conveyor belt 4, and its horizontal position is strictly in the middle area of ​​the width direction of the conveyor belt 4, with the deviation from the center line of the conveyor belt 4 controlled within ±1 mm, it can be positioned above the wing plate. Then, the cylinder mechanism 14 continues to drive, and the extrusion wheel 17 contacts the wing plate and applies pressure to achieve clamping. Simultaneously, when the cylinder mechanism 14 drives the guide frame 19 to perform vertical lifting and lowering movements, the sliders welded to both ends of the guide frame 19 are synchronously embedded into the symmetrically opened limiting grooves 20 on both sides of the inner wall of the support column 12, providing linear guidance along the vertical direction of the limiting grooves 20 to ensure the stability of the pressing process. Finally, after the wing plate is positioned and pressed, subsequent processing operations are performed. After processing is completed, the cylinder mechanism 14 drives the telescopic rod 15 to lift the extrusion wheel 17, releasing the wing plate, and the conveyor belt 4 continues to operate, transporting the processed wing plate to the next process.

Claims

1. A wing plate centering clamp, comprising a support frame (1), characterized in that: The support frame (1) is provided with L-shaped bearing frames (7) on both sides. Adjustable telescopic mechanisms (8) are installed on the opposite sides of the L-shaped bearing frames (7). The output end of the telescopic mechanism (8) is connected to a positioning plate (9). The vertical surface of the positioning plate (9) is used for lateral positioning of the wing plate. A support rod (10) is fixedly installed on the upper side of the positioning plate (9) by welding. A guide wheel (11) is movably installed on the top of the support rod (10) by bearing connection. A support column (12) is fixedly installed on the upper side of the support frame (1). A top plate (13) is detachably installed on the top of the support column (12). A cylinder mechanism (14) is installed on the bottom of the top plate (13) by bolt fastening. A telescopic rod (15) is movably installed on the bottom of the cylinder mechanism (14). A rectangular positioning frame (16) is fixedly installed on the lower end of the telescopic rod (15) by welding. An extrusion wheel (17) is movably installed inside the positioning frame (16) by rotating shaft.

2. The wing plate centering clamp according to claim 1, characterized in that: A drive motor (2) is detachably installed on one side of the support frame (1) via a flange. The output end of the motor (2) is connected to a drive shaft (3) via a coupling. Both ends of the drive shaft (3) are fixed in the bearing seats of the support frame (1) via bearings. An annular conveyor belt (4) is sleeved on the outside of the drive shaft (3).

3. The wing plate centering clamp according to claim 2, characterized in that: The inner wall of the support frame (1) is fixedly provided with a driven shaft (5). The two ends of the driven shaft (5) are embedded in the bearing body (6) through a fit. The inner ring of the bearing body (6) is in close contact with the outer wall of the driven shaft (5). The driven shaft (5) is arranged parallel to the drive shaft (3) directly below it.

4. A wing plate centering clamp according to claim 2, characterized in that: The extrusion wheel (17) is positioned at the center of the positioning frame (16) via a rotating shaft. The extrusion wheel (17) is perpendicular to the running direction of the conveyor belt (4). The installation height of the extrusion wheel (17) is 0.5 to 1 mm above the upper surface of the conveyor belt (4). At the same time, the horizontal position of the extrusion wheel (17) is strictly in the middle area of ​​the width direction of the conveyor belt (4), and the deviation from the center line of the conveyor belt (4) is controlled within ±1 mm.

5. A wing plate centering fixture according to claim 4, characterized in that: A positioning shaft (18) is installed transversely inside the extrusion wheel (17), and the two ends of the positioning shaft (18) are connected to the inside of the positioning frame (16).

6. A wing plate centering clamp according to claim 4, characterized in that: The inner wall of the support column (12) is symmetrically provided with limiting grooves (20). When the cylinder mechanism (14) drives the guide frame (19) to make vertical lifting and lowering movements, the sliders welded at both ends of the guide frame (19) are simultaneously embedded in the limiting grooves (20) and are linearly guided along the vertical direction of the limiting grooves (20).

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