Efficient multi-shaft drilling device for composite paddle balancing weight

Abstract

The utility model provides an efficient multi-shaft drilling device for a composite paddle balancing weight, and the device mainly structurally comprises a paddle positioning assembly which is composed of a paddle tip limiting block and a paddle root positioning assembly, during working, a paddle moves towards the right side of an operation surface through a carrier roller until a paddle tip moves to the limiting block and is attached to the limiting block, and the paddle root positioning assembly is used for positioning the paddle tip; after fitting, the two positioning holes are locked at the paddle root part by using a bolt, so that the primary positioning of the paddle is completed; according to the efficient multi-shaft drilling device, the traditional machining mode that a single hole is formed manually through an air drill is broken through, the drilling efficiency of a composite paddle balancing weight can be greatly improved through simultaneous drilling of multiple shafts, and meanwhile the drilling quality is improved through accurate positioning of the paddle and accurate feeding of the main shaft head.

Description

Technical Field

[0001] This application belongs to the field of helicopter composite blade processing technology, and in particular relates to a high-efficiency multi-axis drilling device for composite blade counterweights. Background Technology

[0002] The composite blade counterweight is a counterweight component of the blade, located at the blade tip. There are two counterweights, each with an external cap. Ten Φ10.4 mounting holes and six Φ10.4 mounting holes need to be drilled on each counterweight, with a drilling depth of 14-16mm. The mounting holes are used to install the threaded bushing mounting caps.

[0003] Currently, the processing method for counterweight assembly holes is manual drilling using a pneumatic drill. Only one hole can be processed at a time, which results in low work efficiency, poor hole quality, poor perpendicularity of the hole to the blade surface, difficulty in controlling the hole depth, and poor product consistency.

[0004] Due to the special nature of the product, there is currently no mature and efficient hole-making equipment on the market that can complete the hole-making work for the blade counterweight. Utility Model Content

[0005] Purpose of application: This application provides a high-efficiency multi-axis drilling device that can automatically drill paddle counterweights and improve drilling quality at the same time.

[0006] This application provides a high-efficiency multi-axis drilling device for composite blade counterweights, the device comprising:

[0007] The blade positioning assembly consists of a blade tip limiting block and a blade root positioning assembly. During operation, the blade moves to the right side of the operating surface via the idler roller until the blade tip moves to the limiting block and fits into place. After fitting, the two positioning holes are locked at the blade root using a pin, thus completing the initial positioning of the blade.

[0008] Preferably, the device further includes:

[0009] The idler roller section is used to place the blades in the appropriate position for processing and to support and transport them. It consists of two parts: a support frame and idler rollers. The idler rollers can roll freely on the frame.

[0010] Preferably, the device further includes:

[0011] The blade adjustment assembly includes a blade profile support block, a blade profile adjustment block, a linear guide rail, a lead screw, and a handwheel; it is used to fine-tune the blade position after initial positioning by using the profile and clamping and fixing it, so that the blade placement posture is consistent with the theoretical state and locked to ensure the drilling accuracy.

[0012] Preferably, the device further includes:

[0013] The machine bed includes a worktable, a movable headstock, and lifting components. The worktable is fixed to the ground and serves as support and mounting for the entire mechanism. The movable headstock consists of a moving motor, guide rail sliders, and a frame. The guide rails are fixed to the worktable, and the moving motor provides the driving force for the headstock's movement, allowing the entire movable headstock to move accurately along the guide rails. There are two lifting components, each corresponding to a different counterweight for drilling holes. The two lifting components have the same structure but different installation dimensions. The structure of the two lifting components is described uniformly as follows: The lifting component is mounted on the movable headstock and is used for the lifting and machining feed of the multi-axis drilling assembly. Its structure consists of a lifting table, guide rail sliders, a lifting motor, and a lifting lead screw. The lifting table is fixed to the movable headstock, and the lifting motor and lifting lead screw provide the driving force for the lifting and machining feed of the multi-axis drilling assembly.

[0014] Preferably, the device further includes:

[0015] There are two multi-axis drilling assemblies, used for drilling holes in two different counterweights on the paddle. The two assemblies have the same structure, but differ in the number of axes and installation dimensions. The structure of the two assemblies is described uniformly below. The drilling assembly is mounted on the bed's lifting assembly and mainly consists of a drive motor, a multi-axis gearbox, and a drill bit. The drive motor, through the gearbox, rotates the drill bit at the required speed and torque. This, combined with the lifting assembly's feed, enables accurate drilling of the counterweights. The position of the multi-axis drilling assembly is adjusted by moving the bed head, allowing drilling of different counterweights.

[0016] The beneficial technical effects of this application are as follows:

[0017] This application provides a high-efficiency multi-axis drilling device, which breaks through the traditional processing method of manually drilling holes using a single pneumatic drill. By drilling holes simultaneously on multiple axes, the drilling efficiency of composite blade counterweights can be greatly improved. At the same time, the drilling quality is improved by accurately positioning the blades and precisely feeding the spindle head. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the product's shape that needs to be processed;

[0019] Figure 2 yes Figure 1 A magnified view of a portion of the area where the product needs to be processed.

[0020] Figure 3 This is a schematic diagram of the overall structure of the high-efficiency multi-axis drilling device with blade counterweight;

[0021] Figure 4 This is a schematic diagram of the propeller root positioning section.

[0022] Figure 5 This is a schematic diagram of the blade adjustment assembly structure;

[0023] Figure 6 This is a schematic diagram of the internal structure of a multi-axis drilling assembly;

[0024] Figure 7 This is a schematic diagram of the transmission principle of a multi-axis drilling assembly;

[0025] Wherein: 1-Product to be processed; 2-Roller assembly; 3-Workbench; 4-Movable headstock; 5-Lifting assembly; 6-Multi-axis drilling assembly; 7-Paddle adjustment assembly; 8-Padded block; 9-Adjusting block; 10-Guide rail slider; 11-Adjusting screw; 12-Operating handwheel. Detailed Implementation

[0026] Combined with appendix Figure 1 -Appendix Figure 7 This application provides a further explanation of the high-efficiency multi-axis drilling device for blade counterweights.

[0027] like Figure 3 As shown, the high-efficiency multi-axis drilling device for blade counterweights provided in this application includes a roller assembly 2, a blade positioning assembly 8, a blade adjustment assembly 7, a bed (including a worktable 3, a movable headstock 4, and a lifting assembly 5), and a multi-axis drilling assembly 6. Its working principle is as follows:

[0028] The first step is to place the blade to be processed on the roller assembly 8. The roller is equipped with a rolling bearing to ensure that the roller can roll freely on the table. Manually move the blade to the right slowly with the roller until the blade tip plane contacts and adheres to the limiting plate on the worktable, and the part to be processed falls freely on the profile support block.

[0029] The second step, as Figure 4 As shown, the two positioning holes at the blade root are secured with pins. This completes the initial positioning of the blade.

[0030] The third step is to operate the handwheel 12 to rotate the adjusting screw 11. The screw and the screw nuts at the bottom of the two adjusting blocks 9 are driven by positive and negative threads, so that the adjusting blocks 9 can fit the blade profile on the guide rail and finely adjust and clamp the blade's orientation.

[0031] The fourth step is to operate the movable headstock so that the first multi-axis drilling assembly reaches the first counterweight processing station, and then lower the first drilling assembly through the lifting assembly 5 to perform drilling.

[0032] Fifth step: After completing the drilling of the first counterweight, lift the first multi-axis drilling assembly using the lifting component, operate the movable headstock to move the second multi-axis drilling assembly to the second counterweight processing station, and lower the second drilling assembly using the lifting component 5 for drilling.

[0033] Step 6: After drilling the two counterweights is completed, lift the second drilling assembly using the lifting assembly 5, loosen the blade adjustment assembly 7, remove the pin at the blade root, remove the processed blade, and the counterweight drilling is complete.

Claims

1. A high-efficiency multi-axis drilling device for composite blade counterweights, characterized in that, The device includes: The blade positioning assembly consists of a blade tip limiting block and a blade root positioning assembly. The blade moves to the right side of the operating surface via the idler roller, and the blade tip moves to the limiting block and fits against the blade root. The two positioning holes are locked by a pin. The device further includes: The blade adjustment assembly includes a blade profile support block, a blade profile adjustment block, a linear guide rail, a lead screw, and a handwheel; it is used to fine-tune the blade position and clamp and fix it after the blade is initially positioned using the profile. The device further includes: The machine bed includes a worktable, a movable headstock, and lifting components. The worktable is fixed to the ground for support and installation of the entire mechanism. The movable headstock consists of a moving motor, guide rail sliders, and a frame. The guide rails are fixed to the worktable, and the moving motor provides the driving force for the headstock's movement. There are two lifting components, each corresponding to a different counterweight for drilling. The two lifting components have the same structure but different installation dimensions. The structure of the two lifting components is described uniformly as follows: The lifting component is mounted on the movable headstock and is used for the lifting and machining feed of the multi-axis drilling assembly. Its structure consists of a lifting table, guide rail sliders, a lifting motor, and a lifting lead screw. The lifting table is fixed to the movable headstock, and the lifting motor and lifting lead screw provide the driving force for the lifting and machining feed of the multi-axis drilling assembly. The device further includes: There are two multi-axis drilling assemblies, one for drilling holes in two different counterweights on the blade. The two assemblies have the same structure, but differ in the number of axes and installation dimensions. The drilling assemblies are mounted on the bed's lifting assembly and consist of a drive motor, a multi-axis gearbox, and a drill bit. The drive motor, through the gearbox, rotates the drill bit at the required speed. The counterweight is accurately drilled by feeding through the lifting assembly; the position of the multi-axis drilling assembly is changed by moving the headstock of the bed to drill holes in different counterweights.

2. The apparatus according to claim 1, characterized in that, The device further includes: The idler roller section is used to place the blades in the appropriate position for processing and to support and transport them. It consists of two parts: a support frame and idler rollers. The idler rollers can roll freely on the frame.

Images