A pipe manufacturing apparatus and a pipe manufacturing method based on model data

Abstract

The application discloses a pipe manufacturing device and method based on model data, which comprises a positioning module, a slide rail and a sliding module. The positioning module is fixed at one end of the slide rail to mark the starting diameter line and the starting axis of the pipe. The sliding module is slidably connected to the slide rail to mark the ending diameter line and the ending axis of the pipe. The length scale is marked on the slide rail. The application has simple overall structure and provides a portable pipe manufacturing scheme which can be independently and quickly processed and has high precision. The application is suitable for small-batch production, various types, high precision, portability and independent and quick processing of pipe manufacturing requirements.

Description

Technical Field

[0001] This invention relates to a tube-making device and a tube-making method based on model data. Background Technology

[0002] Aircraft fuel systems, environmental control systems, cooling systems, etc., all contain a large number of pipe components, most of which are three-dimensional pipes and each pipe is different. For the bending and forming manufacturing of pipes, depending on the production volume and stage, manual pipe benders are generally used in the research and development stage when the production volume is small, while in the mass production stage, they are mostly outsourced or CNC three-dimensional pipe bending machines are used.

[0003] There are many types of manual pipe benders, but they all share the same basic principle and structure. They consist of a bending block (with angle markings), a fixed handle, a drive handle (with pipe pulleys), and a pipe clamp. After the pipe is inserted into the bending block and clamped, maintain a certain speed and force when bending, and adjust to the required angle.

[0004] The CNC 3D pipe bending machine directly converts the pipe 3D model into pipe-making program code, generating the 3D coordinates of the pipe bending points, bending angle, etc., and determining the bending module of the equipment (fixed, the bending radius of pipes of the same specification is the same). The bending angle and bending point are controlled by the program.

[0005] Manual pipe benders are simple to operate, inexpensive, and easy to maintain, but they can only be used for planar pipe making. The accuracy and consistency of three-dimensional pipes are very low, and they depend on the operator's experience and skill level.

[0006] CNC three-dimensional pipe bending machines offer extremely high precision and consistency, but are expensive and mostly used for mass production.

[0007] For aircraft manufacturers in the R&D and small-batch production stages, the requirements for the accuracy and consistency of piping systems of various systems and models are high. These systems are diverse but produced in small quantities, and the R&D process requires continuous iterative optimization of models, resulting in frequent revisions to piping models. Even with outsourcing, negotiations regarding price, timeline, and contracts are difficult to advance and predict. However, piping manufactured using manual pipe benders is often reworked, resulting in significant pipe losses and hindering the R&D cycle. Furthermore, the low consistency means that piping systems for aircraft of the same technical specifications may be inconsistent, leading to interference and other adverse effects in confined spaces.

[0008] To address the above problems, this application proposes a solution. Summary of the Invention

[0009] Purpose of the invention: The purpose of this invention is to provide a tube manufacturing device and method based on model data, and to provide a portable, autonomous, rapid, and highly accurate tube manufacturing solution.

[0010] Technical solution: The present invention provides a pipe manufacturing device based on model data, comprising a positioning module, a slide rail, and a sliding module. The positioning module is fixed to one end of the slide rail and marks the starting diameter and starting axis of the pipe. The sliding module is slidably connected to the slide rail and marks the ending diameter and ending axis of the pipe. The slide rail is marked with length graduations.

[0011] Preferably, the positioning module includes a positioning device, an angle gauge, and a slide rail pin. The positioning device is fixed to the end of the slide rail by the slide rail pin, and a pipe fitting set on the positioning device is locked by a pipe pin. An angle gauge is rotatably mounted on the axial end face of the positioning device along the slide rail, and a pipe fitting passing through the angle gauge is locked by a pipe pin.

[0012] Preferably, the top end of the positioning instrument is provided with a slot one along the slide rail direction, the slot one being used to mark the device on the pipe fitting; the angle instrument is provided with a slot two along the slide rail direction, the slot two being used to mark the device on the pipe fitting.

[0013] Preferably, the sliding module includes a sliding element and a second slide rail pin. The sliding element is fixed on the slide rail by the second slide rail pin, and the sliding element is locked to the pipe fittings set on the sliding element by a pipe pin.

[0014] Preferably, the top end of the sliding device is provided with a three-slotted groove along the direction of the slide rail, which is used to mark the device on the pipe.

[0015] A tube manufacturing method for a tube manufacturing device based on model data includes the following steps:

[0016] S1: Based on the number of bends N of the pipe to be bent, divide the pipe into N+1 segments including the bend ends. Use 3D software to measure the parameters of the bends and define the diameter P of each segment. N and axis S N Define the length L of each bend. N Bending angle θ N The relative angle Δθ between the axes of adjacent bends N L N =P 2N -P 2N-1 ,Δθ N =S N+1 -S N ;

[0017] S2: Based on the bending parameters measured in the 3D software, after fixing the pipe to be bent on the pipe-making equipment, use the marking device to mark the diameter P1 of the first section of the bend through the slot one of the positioning instrument. Then, use the marking device to mark the diameter P2 of the first section of the bend through the slot three of the sliding instrument. Finally, mark the end point of the axis S1 on the first section of the bend by continuing to slide the sliding instrument.

[0018] S3: Remove the pipe to be bent from the pipe making equipment. After aligning the pipe bend starting position diameter P2 and the end position axis S1 with the pipe bender, tighten the locking buckle of the pipe bender. After bending the pipe to be bent at an angle θ1, mark the diameter P3 of the second section of the bend as the starting diameter of the second section of the bend.

[0019] S4: Fix the pipe fitting after bending once on the pipe making equipment. After the positioning device on the pipe making equipment aligns with the starting diameter P3 of the second section of the bend and the axis S1 of the first section of the bend, lock the pipe pin. After rotating the angle meter Δθ1, lock the angle meter. At this time, mark the starting position of the axis S2 of the second section of the bend at the second section of the bend corresponding to the second slot on the angle meter.

[0020] S5: Loosen the pipe lock of the positioning device on the pipe making equipment, rotate the pipe fitting so that the starting position of the axis S2 of the second section of the bend is aligned with the slot of the positioning device, and then lock the pipe pin.

[0021] S6: By sliding the sliding instrument, mark the diameter P4 on the third slot of the sliding instrument for the second section of the bend, and mark the end point of the axis S2 on the second section of the bend by continuing to slide the sliding instrument.

[0022] S7: Remove the pipe fitting from the pipe making equipment. After aligning the diameter P4 on the second section of the bend with the end position of the axis S2 using the pipe bender, tighten the locking buckle of the pipe bender. After bending the second section of the bend at an angle of θ2, mark the diameter P5 of the third section of the pipe fitting to be bent as the starting diameter of the third section of the pipe fitting to be bent.

[0023] S8: Repeat S4-S7 to complete the subsequent bending sections on the pipe fitting.

[0024] Preferably, the pipe-making equipment includes a positioning module, a slide rail, and a sliding module. The positioning module is fixed to one end of the slide rail and marks the starting diameter and starting axis of the pipe. The sliding module is slidably connected to the slide rail and marks the ending diameter and ending axis of the pipe. The slide rail is marked with length graduations.

[0025] Preferably, the positioning module includes a positioning device, an angle gauge, and a slide rail pin. The positioning device is fixed to the end of the slide rail by the slide rail pin, and a pipe fitting set on the positioning device is locked by a pipe pin. An angle gauge is rotatably mounted on the axial end face of the positioning device along the slide rail, and a pipe fitting passing through the angle gauge is locked by a pipe pin.

[0026] Preferably, the top end of the positioning instrument is provided with a slot one along the slide rail direction, the slot one being used to mark the device on the pipe fitting; the angle instrument is provided with a slot two along the slide rail direction, the slot two being used to mark the device on the pipe fitting.

[0027] Preferably, the sliding module includes a sliding device and a second slide rail pin. The sliding device is fixed to the slide rail by the second slide rail pin. The sliding device is locked to the pipe fitting set on the sliding device by a pipe pin. The top end of the sliding device is provided with a third slot along the slide rail direction. The third slot is used to mark the device on the pipe fitting.

[0028] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0029] This invention is applicable to tube manufacturing needs that require small-batch production, diverse types, high precision, portability, and independent rapid processing. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the tube-making equipment in this invention.

[0031] Figure 2 This is a schematic diagram of operation step 2 in this invention.

[0032] Figure 3 This is a schematic diagram of operation step 3 in this invention.

[0033] Figure 4 This is a schematic diagram of operation step 3 in this invention.

[0034] Figure 5 This is a schematic diagram of operation step 4 in this invention.

[0035] Figure 6 This is a schematic diagram of operation step 5 in this invention.

[0036] Figure 7 This is a schematic diagram of operation step 6 in this invention.

[0037] Figure 8 This is a schematic diagram of operation step 7 in this invention.

[0038] Figure 9 A pipe fitting for performing a bending operation using the present invention.

[0039] Among them: 1. Slide rail; 2. Positioning device; 3. Angle device; 4. Slide rail pin one; 5. Slot one; 6. Slot two; 7. Sliding device; 8. Slide rail pin two; 9. Slot three. Detailed Implementation

[0040] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0041] Before understanding this invention, as Figure 1 As shown, those skilled in the art should know that the pipe-making accuracy of a bent pipe is determined by the length L of the bent pipe, the angle θ, and the relative angle Δθ between the axes.

[0042] See appendix Figure 2 The pipe-making equipment based on model data in this invention includes a positioning module, a slide rail 1, and a sliding module. The positioning module is fixed to one end of the slide rail and marks the starting diameter and starting axis of the pipe. The sliding module is slidably connected to the slide rail 1 and marks the ending diameter and ending axis of the pipe. At the same time, the slide rail 1 is marked with length scales for marking the parameters of the pipe.

[0043] In this embodiment, the positioning module includes a positioning device 2, an angle meter 3, and a slide rail pin 4. The positioning device 2 is fixed to the end of the slide rail 1 by the slide rail pin 4, and the pipe fitting set on the positioning device 2 is locked by a pipe pin. The angle meter 3 is rotatably set on the axial end face of the positioning device 2 along the slide rail 1, and the pipe fitting passing through the angle meter 3 is locked by a pipe pin.

[0044] In this embodiment, the top end of the positioning instrument 2 is provided with a slot 5 along the direction of the slide rail 1, and the slot 5 is used to mark the device on the pipe; the angle instrument 3 is provided with a slot 6 along the direction of the slide rail 1, and the slot 6 is used to mark the device on the pipe.

[0045] In this embodiment, the sliding module includes a sliding device 7 and a slide rail pin 2 8. The sliding device 7 is fixed on the slide rail 1 by the slide rail pin 2 8. The sliding device 7 is locked with the pipe fitting set on the sliding device 7 by the pipe pin. A slot 3 9 is provided at the top end of the sliding device 7 along the direction of the slide rail 1. The slot 3 9 is used to mark the device on the pipe fitting.

[0046] This embodiment also provides a tube manufacturing method based on model data for tube manufacturing equipment, including the following steps:

[0047] S1: In this embodiment, the pipe to be bent is bent 2 times, the pipe is divided into 3 segments, the parameters of the bend are measured using 3D software, and the diameter P of each bend segment is defined. N and axis S N Define the length L of each bend. N Bending angle θ NThe relative angle Δθ between the axes of adjacent bends N L N =P 2N -P 2N-1 ,Δθ N =S N+1 -S N ;

[0048] S2: See Appendix Figure 2 According to the bending parameters measured in the 3D software, after fixing the pipe to be bent on the pipe making equipment, the diameter P1 of the first section of the bend is marked on the first section of the bend by the slot 5 of the positioning instrument 2 using the marking device. The diameter P2 of the first section of the bend is marked on the slot 9 of the sliding instrument 7 by the sliding instrument 7. After continuing to slide the sliding instrument 7, the end point position of the axis S1 is marked on the first section of the bend.

[0049] S3: See appendix Figure 3-4 Remove the pipe to be bent from the pipe-making equipment. Align the pipe bend starting position diameter P2 and the end position axis S1 with the pipe bender and tighten the bender's locking buckle. After bending the pipe to be bent at an angle θ1, mark the diameter P3 of the second section of the bend as the starting diameter of the second section of the bend.

[0050] S4: See Appendix Figure 5 After bending the pipe once, fix the pipe fitting on the pipe making equipment. After the positioning device 2 on the pipe making equipment aligns with the starting diameter P3 of the second section of the bend and the axis S1 of the first section of the bend, lock the pipe pin. After rotating the angle meter 3Δθ1, lock the angle meter 3. At this time, mark the starting position of the axis S2 of the second section of the bend at the second section of the bend corresponding to the slot 6 on the angle meter 3.

[0051] S5: See Appendix Figure 6 Loosen the pipe lock of the positioning device on the pipe making equipment, rotate the pipe fitting so that the starting position of the axis S2 of the second section of the bend is aligned with the slot 5 of the positioning device 2, and then tighten the pipe pin.

[0052] S6: See Appendix Figure 7 By sliding the sliding instrument 7, the diameter line P4 is marked on the slot 39 of the sliding instrument 7, and the end point position of the axis S2 is marked on the second section of the bend after continuing to slide the sliding instrument 7.

[0053] S7: See Appendix Figure 8-9 Remove the pipe fitting from the pipe-making equipment, align the end position of the diameter P4 and axis S2 on the second section of the pipe with the pipe bender, and then tighten the locking buckle of the pipe bender. Bend the second section of the pipe at an angle of θ2 to complete the number of bends of the pipe fitting to be bent.

[0054] This invention is applicable to tube manufacturing needs that require small-batch production, diverse types, high precision, portability, and independent rapid processing.

Claims

1. A tube manufacturing method for a tube manufacturing device based on model data, characterized in that: Includes the following steps: S1: Based on the number of bends N of the pipe to be bent, divide the pipe into N+1 segments including the bend ends. Use 3D software to measure the parameters of the bends and define the diameter of each segment. and axis Define the length of each bend. Bending angle The relative angle of the axes between adjacent bends ,in , ; S2: Based on the pipe bending parameters measured in the 3D software, after fixing the pipe to be bent on the pipe-making equipment, use a marking device to mark the diameter of the first section of the bend on the first section of the bend through the slotting of the positioning instrument. Using a marking device, the diameter of the first section of the bend is marked on the slot three of the sliding device by a sliding gauge. And by continuing to slide the slider, the axis is marked on the first section of the bend. The final position; S3: Remove the pipe fitting to be bent from the pipe-making equipment and align the diameter line of the starting position of the bend using a pipe bender. and axis After reaching the endpoint, tighten the locking buckle of the pipe bender to bend the pipe fitting. After adjusting the angle, mark the diameter of the second bend. , serving as the starting diameter of the second bend; S4: Fix the pipe fitting after the first bend onto the pipe-making equipment, and align the positioning device on the pipe-making equipment with the starting diameter of the second bend. and the axis of the first bend Afterwards, tighten the locking pin and rotate the angle gauge. Afterwards, tighten the angle gauge, and at this point mark the axis of the second bend corresponding to the second slot on the angle gauge. The starting position; S5: Loosen the pipe lock on the positioning device of the pipe-making equipment, and rotate the pipe fitting to align the axis of the second section of the bend. After aligning the starting position with the slot of the positioning instrument, tighten the pipe pin; S6: Using the sliding gauge, mark the diameter of the second bend on the third slot of the sliding gauge. And by continuing to slide the slider, the axis is marked on the second section of the bend. The final position; S7: Remove the pipe fitting from the pipe-making equipment and use a pipe bender to align the diameter on the second bend. and axis After reaching the end position, tighten the locking buckle of the pipe bender to bend the second section of pipe. After adjusting the angle, mark the diameter of the third section of the pipe to be bent. This serves as the starting diameter line for marking the third section of the pipe to be bent; S8: Repeat S4-S7 to complete the subsequent bending sections on the pipe fitting.

2. The tube manufacturing method of a tube manufacturing device based on model data according to claim 1, characterized in that: The pipe-making equipment includes a positioning module, a slide rail, and a sliding module. The positioning module is fixed to one end of the slide rail and marks the starting diameter and starting axis of the pipe. The sliding module is slidably connected to the slide rail and marks the ending diameter and ending axis of the pipe. The slide rail is marked with length graduations.

3. The tube manufacturing method of a tube manufacturing device based on model data according to claim 2, characterized in that: The positioning module includes a positioning device, an angle gauge, and a slide rail pin. The positioning device is fixed to the end of the slide rail by the slide rail pin, and a pipe fitting set on the positioning device is locked by a pipe pin. An angle gauge is rotatably mounted on the end face of the positioning device along the axial direction of the slide rail, and a pipe fitting passing through the angle gauge is locked by a pipe pin.

4. The tube manufacturing method of a tube manufacturing device based on model data according to claim 3, characterized in that: The top end of the positioning instrument is provided with a first slot along the slide rail direction, the first slot being used to mark the device on the pipe fitting; the angle instrument is provided with a second slot along the slide rail direction, the second slot being used to mark the device on the pipe fitting.

5. The tube manufacturing method of a tube manufacturing device based on model data according to claim 2, characterized in that: The sliding module includes a sliding device and a second slide rail pin. The sliding device is fixed on the slide rail by the second slide rail pin. The sliding device is locked to the pipe fitting set on the sliding device by a pipe pin. The top end of the sliding device is provided with a third slot along the slide rail direction. The third slot is used to mark the device on the pipe fitting.

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