Positioning device for processing of aircraft composite components

Abstract

The utility model discloses a positioning device for aircraft composite material assembly processing, including base plate, be provided with fixed block and hydraulic pressure stem on the base plate. Base plate left side is equipped with fixed clamp block and opposite movable clamp block, movable clamp block connects drive arm, and drive arm passes through the guide slot on the guide block. The inside of fixed block is equipped with transmission groove, and the movable plate in hydraulic pressure stem drive groove, and the movable plate is guided through guide rod and guide ring. Transmission arm connects drive arm and movable plate, and constitutes connecting rod transmission mechanism. The utility model discloses through hydraulic pressure stem drive, and the linear motion of movable plate is converted for the transverse linear motion of drive arm through transmission arm, to drive movable clamp block to draw close or away from fixed clamp block, realizes the automatic clamping and loosening of workpiece. The device effectively improves the clamping efficiency and stability, reduces the labor intensity, and is applicable to the batch processing of aircraft composite material assembly.

Description

Technical Field

[0001] This utility model relates to the field of aircraft composite material parts processing technology, specifically a positioning device for processing aircraft composite material components. Background Technology

[0002] Composite materials for aircraft, especially composite material components used in aircraft such as drones, including brackets, beams, and arms, are widely used in the aerospace manufacturing field due to their excellent properties such as high specific strength, high specific stiffness, corrosion resistance, and high designability. During the processing of these composite material components, especially during precision machining processes such as drilling and milling, they need to be stably positioned and clamped to ensure processing quality.

[0003] In the prior art, there are various positioning fixtures for workpiece machining. For example, Chinese Patent No. CN212287536U discloses a positioning device for machining composite material components for aircraft. This device typically clamps the workpiece by manually rotating a control block to drive a screw, which in turn causes the first and second clamping plates to move towards each other. Furthermore, an auxiliary extrusion mechanism is required to drive the extrusion plate downwards by manually rotating a bolt.

[0004] However, the aforementioned existing technologies have significant shortcomings. They mainly rely on manual operation for clamping and releasing, which not only increases the labor intensity of operators but also results in low clamping efficiency, making it difficult to meet the needs of modern mass production or high-efficiency processing.

[0005] Therefore, we propose a positioning device for processing composite material components for aircraft. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a positioning device for processing composite material components for aircraft. Through hydraulic drive and linkage transmission mechanism, it achieves efficient, stable and automated clamping of composite material components for aircraft, which can effectively solve the problems in the background technology.

[0007] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a positioning device for processing composite material components for aircraft, comprising a base plate, a fixing block fixedly installed on the right side of the upper outer surface of the base plate, fixing clamp blocks fixedly installed at the front and rear ends of the left side of the upper outer surface of the base plate, a movable clamp block provided on the right side of the fixing clamp block, a drive arm fixedly installed on the right outer surface of the movable clamp block, guide blocks fixedly installed at the front and rear ends of the middle of the upper outer surface of the base plate, a guide groove opened in the middle of one side outer surface of the guide block, the guide groove extending to the other side outer surface of the guide block, the drive arm extending through the guide groove, a transmission groove opened on the left outer surface of the fixing block, a movable plate, a guide rod, a guide ring, a transmission arm and a second connecting shaft provided in the transmission groove, a first connecting shaft fixedly installed at the right end of the upper outer surface of the drive arm, and a hydraulic rod fixedly installed on the front outer surface of the fixing block.

[0008] Preferably, the lower outer surface of the movable clamp block is in sliding contact with the upper outer surface of the substrate.

[0009] Preferably, the outer wall of the drive arm and the guide groove are slidably connected.

[0010] Preferably, the piston rod of the hydraulic rod extends movably into the transmission groove and is fixedly connected to the front outer surface of the movable plate. The guide rod is fixed on the right side of the transmission groove. There are two sets of guide rings, which are fixed at the front and rear ends of the right outer surface of the movable plate. The guide rings are slidably connected to the outer wall of the guide rod.

[0011] Preferably, the transmission arm is connected between the right end of the drive arm and the upper part of the movable plate, and the left end of the transmission arm is connected to the first connecting shaft. A bearing is provided between the transmission arm and the first connecting shaft, and the transmission arm is rotatably connected to the first connecting shaft through the bearing.

[0012] Preferably, the rear end of the transmission arm is rotatably connected to the outer wall of the second connecting shaft via a bearing, and the second connecting shaft is fixed to the upper outer surface of the movable plate.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a positioning device for processing composite material components for aircraft, which has the following advantages: 1. This positioning device for processing composite material components for aircraft uses a hydraulic rod as a power source to drive a linkage transmission mechanism to automatically complete the forward and backward movement of the movable clamping block, thereby achieving the clamping and loosening of the workpiece. This completely changes the traditional manual tightening of bolts, reduces the labor intensity of operators, shortens the workpiece clamping time, and is particularly suitable for batch processing scenarios that require frequent loading and unloading of workpieces, thus improving the overall processing efficiency.

[0014] 2. This positioning device for processing composite material components for aircraft can provide continuous and stable clamping force through hydraulic drive. At the same time, the sliding connection design between the drive arm and the guide groove, as well as the sliding cooperation between the movable plate and the guide ring and the guide rod, effectively constrain the movement trajectory of the movable clamping block, so that it always maintains linear movement and ensures the stability of clamping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a positioning device for processing composite material components for aircraft, according to the present invention.

[0016] Figure 2 This is a partial structural schematic diagram of a positioning device for processing composite material components for aircraft, according to the present invention.

[0017] Figure 3 This is a top cross-sectional view of the fixing block in a positioning device for processing composite material components for aircraft according to this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of a positioning device for processing composite material components of an aircraft, after fixing the composite material legs of an unmanned aerial vehicle.

[0019] In the figure: 1. Base plate; 2. Fixing block; 3. Hydraulic rod; 4. Fixing clamp block; 5. Movable clamp block; 6. Drive arm; 7. Guide block; 8. Guide groove; 9. First connecting shaft; 10. Transmission groove; 11. Movable plate; 12. Guide rod; 13. Guide ring; 14. Transmission arm; 15. Second connecting shaft. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-4 As shown, this utility model provides a positioning device for processing composite material components for aircraft, including a base plate 1, which serves as the basic support platform for the entire device. A fixing block 2 is fixedly installed on the right side of the upper outer surface of the base plate 1, and a hydraulic rod 3 is fixedly installed on the front outer surface of the fixing block 2. Fixing clamp blocks 4 are fixedly installed at both ends on the left side of the upper outer surface of the base plate 1 for positioning the workpiece from one side. A movable clamp block 5 is provided on the right side of the fixing clamp block 4, and the lower outer surface of the movable clamp block 5 is in sliding contact with the upper outer surface of the base plate 1, allowing the movable clamp block 5 to slide horizontally relative to the base plate 1. A drive arm 6 is fixedly installed on the right outer surface of the movable clamp block 5.

[0022] To guide the movement of the drive arm 6, guide blocks 7 are fixedly installed at both ends of the upper outer surface of the substrate 1. A guide groove 8 is formed in the middle of one side of the outer surface of the guide block 7, and the guide groove 8 extends to the other side of the outer surface of the guide block 7. The drive arm 6 passes through the guide groove 8, and the outer wall of the drive arm 6 is slidably connected to the guide groove 8, which allows the drive arm 6 to be constrained within the guide groove 8 and perform stable linear motion.

[0023] A transmission groove 10 is formed on the left outer surface of the fixed block 2. The piston rod of the hydraulic rod 3 extends movably into the transmission groove 10. The transmission groove 10 is provided with a movable plate 11, a guide rod 12, a guide ring 13, a transmission arm 14, and a second connecting shaft 15. Specifically, the end of the piston rod of the hydraulic rod 3 is fixedly connected to the front outer surface of the movable plate 11 for directly driving the movable plate 11. The guide rod 12 is fixed on the right inner wall of the transmission groove 10. There are two sets of guide rings 13, which are fixed at the front and rear ends of the right outer surface of the movable plate 11. The guide rings 13 are fitted onto the guide rod 12 and are slidably connected to the outer wall of the guide rod 12, thereby ensuring that the movable plate 11 moves stably back and forth along the guide rod 12 under the drive of the hydraulic rod 3 and preventing it from deflecting.

[0024] A first connecting shaft 9 is fixedly mounted on the right end of the upper outer surface of the drive arm 6. A transmission arm 14 connects the right end of the drive arm 6 to the upper part of the movable plate 11, forming a transmission mechanism. The left end of the transmission arm 14 is rotatably connected to the first connecting shaft 9 via a bearing, allowing the transmission arm 14 to rotate around the first connecting shaft 9. The rear end of the transmission arm 14 is rotatably connected to the outer wall of a second connecting shaft 15 via a bearing, and the second connecting shaft 15 is fixed to the upper outer surface of the movable plate 11. Therefore, the transmission arm 14 can rotate around the second connecting shaft 15.

[0025] The working principle of this utility model is as follows: When it is necessary to modify composite material components of an aircraft (such as drone legs, etc.) Figure 4 When positioning and clamping (as shown), the workpiece is placed on the base plate 1 and one side of it contacts the two fixed clamp blocks 4.

[0026] Activate hydraulic rod 3 to extend its piston rod. The piston rod pushes movable plate 11 backward (see reference). Figure 3 (Perspective). The movable plate 11 pushes the rear end of the transmission arm 14 to move backward together via the second connecting shaft 15 on it.

[0027] Since the middle part of the transmission arm 14 is connected to the drive arm 6 through the first connecting shaft 9, and the drive arm 6 is constrained in the guide groove 8 of the guide block 7 and can only slide left and right, the rearward movement of the rear end of the transmission arm 14 will force the transmission arm 14 to rotate around the first connecting shaft 9, and at the same time pull the drive arm 6 to move to the right.

[0028] The drive arm 6 moves to the right, causing the movable clamp block 5 fixed thereto to slide to the right on the base plate 1, gradually approaching the workpiece.

[0029] The movable clamping block 5 and the fixed clamping block 4 work together to clamp the workpiece between them, completing the positioning and clamping operation, as shown in the figure. Figure 4 As shown.

[0030] When it is necessary to release the workpiece, simply control the piston rod of hydraulic rod 3 to retract, causing movable plate 11 to move forward. Movable plate 11 pushes drive arm 6 to move to the left via transmission arm 14, thereby causing movable clamp block 5 to move to the left and away from the workpiece, thus unloading the workpiece.

[0031] This invention achieves automatic, smooth, and powerful linear motion of the movable clamping block through hydraulic drive and linkage transmission mechanism, enabling rapid and stable clamping and unclamping of workpieces, improving clamping efficiency and reducing the labor intensity of operators.

[0032] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A positioning device for processing composite material components for aircraft, comprising a substrate (1), characterized in that: A fixing block (2) is fixedly installed on the right side of the upper outer surface of the substrate (1). Fixing clamp blocks (4) are fixedly installed at both ends of the left side of the upper outer surface of the substrate (1). A movable clamp block (5) is provided on the right side of the fixing clamp block (4). A driving arm (6) is fixedly installed on the right outer surface of the movable clamp block (5). A guide block (7) is fixedly installed at both ends of the middle of the upper outer surface of the substrate (1). A guide groove (8) is formed in the middle of one side of the outer surface of the guide block (7). The guide groove (8) extends to the outer surface of the other side of the guide block (7), the drive arm (6) extends through the guide groove (8), the left outer surface of the fixed block (2) is provided with a transmission groove (10), the transmission groove (10) is provided with a movable plate (11), a guide rod (12), a guide ring (13), a transmission arm (14) and a second connecting shaft (15), the right end of the upper outer surface of the drive arm (6) is fixedly installed with a first connecting shaft (9), and the front outer surface of the fixed block (2) is fixedly installed with a hydraulic rod (3).

2. The positioning device for processing composite material components for aircraft according to claim 1, characterized in that: The lower outer surface of the movable clamp block (5) is in sliding contact with the upper outer surface of the substrate (1).

3. The positioning device for processing composite material components for aircraft according to claim 2, characterized in that: The outer wall of the drive arm (6) is slidably connected to the guide groove (8).

4. The positioning device for processing composite material components for aircraft according to claim 3, characterized in that: The piston rod of the hydraulic rod (3) extends into the transmission groove (10) and is fixedly connected to the front outer surface of the movable plate (11). The guide rod (12) is fixed on the right side of the transmission groove (10). There are two sets of guide rings (13). The two sets of guide rings (13) are fixed at the front and rear ends of the right outer surface of the movable plate (11). The guide rings (13) and the outer wall of the guide rod (12) are slidably connected.

5. A positioning device for processing composite material components for aircraft according to claim 4, characterized in that: The transmission arm (14) is connected between the right end of the drive arm (6) and the upper part of the movable plate (11), and the left end of the transmission arm (14) is connected to the first connecting shaft (9). A bearing is provided between the transmission arm (14) and the first connecting shaft (9), and the transmission arm (14) is rotatably connected to the first connecting shaft (9) through the bearing.

6. A positioning device for processing composite material components for aircraft according to claim 5, characterized in that: The rear end of the transmission arm (14) is rotatably connected to the outer wall of the second connecting shaft (15) via a bearing, and the second connecting shaft (15) is fixed to the upper outer surface of the movable plate (11).

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