Civil aircraft APU generator leading-out terminal wire forming tool

Abstract

The utility model provides a civil aircraft APU generator leading-out terminal wire forming tool, and belongs to the technical field of generator processing. Comprising a bending tool and a bending tool, the bending tool comprises a first positioning seat, a bending assembly and an angle limiting block, and the first positioning seat is provided with a first positioning assembly used for fixing the end of a copper wire; the bending tool comprises a lower pressing die and an upper pressing die, the lower pressing die is provided with a second wire groove used for containing and positioning the end of the copper wire, and the upper pressing die and the lower pressing die are each provided with a bending forming face used for forming the copper wire in a matched mode. The copper wire is installed on the bending tool, the copper wire can be horizontally bent for the first time by rotating the handle, then the copper wire bent for the first time is moved and installed on the bending tool, the bent part of the copper wire is bent for the second time through pressure, the tool is low in use cost, and the effect of improving the machining efficiency and the machining quality of the leading-out terminal wire is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to generator processing technical field especially, it relates to a civil aircraft APU generator outgoing terminal wire forming frock. BACKGROUND

[0002] The power supply system of modern civil aircraft is mainly composed of main generator, APU generator (also called auxiliary generator), battery and emergency generator. The APU generator is generally a three-stage electrically excited synchronous generator, and the electric energy output from the main stator is led out by a pure copper wire per phase, which is called outgoing terminal wire. Because different aircraft APU generators are designed differently, the shape and structure of the outgoing terminal wire are also different. The utility model patent is mainly aimed at the APU generator of domestic civil aviation main force model A320 aircraft, and the final shape of the outgoing terminal wire after forming is shown in Figure 1 According to the specific shape requirement of the outgoing terminal wire after forming, the originally flat copper wire needs to be bent twice, so that the outgoing terminal wire product finally presents a space twisted shape.

[0003] At present, when the outgoing terminal wire is completed, the manual bending method is usually used for bending, and the specific method is to clamp one end of the originally flat copper wire on the bench vice, clamp the other end with the hand vice, and manually bend. After each bending, the size is measured, and if it does not meet the drawing requirement, the bending is adjusted again until it meets the requirement.

[0004] However, the current manual bending process requires high skills of the workers, and needs to be operated by professional and experienced bench workers, which affects the allocation of human resources. Secondly, the manual bending is low in efficiency and wastes working hours. Even if the skilled workers, it also needs to be adjusted for many times to meet the drawing requirement, and the scrap rate is also high, which wastes materials. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a civil aircraft APU generator outgoing terminal wire forming frock.

[0006] In order to achieve the above invention purpose, the utility model adopts the technical scheme as follows:

[0007] A civil aircraft APU generator outgoing terminal wire forming frock is provided, which comprises:

[0008] The bending tool is used for horizontal one-time bending of copper wire and comprises a first positioning seat, a bending assembly and an angle limiting block, the first positioning seat, the bending assembly and the angle limiting block are arranged on a bottom plate, the first positioning seat is used for accommodating and positioning an end portion of the copper wire, a first positioning assembly for fixing the end portion of the copper wire is arranged on the first positioning seat, the bending assembly is located on one side of the first positioning seat, the bending assembly comprises a handle horizontally arranged, two bending wheels are horizontally arranged on the handle, a threading gap for the copper wire to pass through is formed between the two bending wheels, the axis of any one of the bending wheels is collinear with the rotating shaft of the handle, the angle limiting block is located on the side of the bending assembly away from the first positioning seat, and the angle limiting block is used for abutting against the handle to limit the rotation of the handle.

[0009] The bending tool is used for horizontal one-time bending of copper wire and comprises a first positioning seat, a bending assembly and an angle limiting block, the first positioning seat, the bending assembly and the angle limiting block are arranged on a bottom plate, the first positioning seat is used for accommodating and positioning an end portion of the copper wire, a first positioning assembly for fixing the end portion of the copper wire is arranged on the first positioning seat, the bending assembly is located on one side of the first positioning seat, the bending assembly comprises a handle horizontally arranged, two bending wheels are horizontally arranged on the handle, a threading gap for the copper wire to pass through is formed between the two bending wheels, the axis of any one of the bending wheels is collinear with the rotating shaft of the handle, the angle limiting block is located on the side of the bending assembly away from the first positioning seat, and the angle limiting block is used for abutting against the handle to limit the rotation of the handle.

[0010] Further, the first positioning seat comprises a fixing block, a first wire slot for accommodating and positioning the end portion of the copper wire is arranged on the fixing block, and an end of the first wire slot close to the bending assembly is open.

[0011] The first positioning assembly comprises an elbow clamp, the elbow clamp is arranged on the fixing block and located on one side of the first wire slot, and the lower pressing end of the elbow clamp faces the upper opening of the first wire slot.

[0012] Further, an end of the fixing block away from the bending assembly is provided with a first adjusting assembly for limiting the position of the end portion of the copper wire, the first adjusting assembly comprises a limiting bolt, a connecting block is fixedly arranged on the end of the first wire slot away from the bending assembly, the limiting bolt is threadedly connected to the connecting block, one end of the limiting bolt extends into the first wire slot and abuts against the end portion of the copper wire.

[0013] Further, the bending assembly further comprises a rotating shaft, the rotating shaft is fixedly connected to the bottom plate, the rotating shaft is sleeved with a first bearing, the handle is rotatably connected to the rotating shaft through the first bearing, one of the bending wheels is sleeved and connected to the rotating shaft, a fixed column is fixedly arranged on one side of the handle away from the rotating shaft, the fixed column is sleeved with a second bearing, and the other bending wheel is rotatably connected to the fixed column through the second bearing.

[0014] Further, a strip-shaped hole is horizontally arranged on the angle limiting block, a screw is movably arranged in the strip-shaped hole, and the screw is threadedly connected to the bottom plate.

[0015] Further, at least two guide columns are vertically arranged on the lower pressing die, and the guide columns are vertically slidably arranged in the upper pressing die.

[0016] The utility model discloses beneficial effect is: when carrying out the bending operation to flat copper line, the flat copper line is passed through the threading gap between two bending wheels, makes the copper line end portion abuts on the limiting bolt in the first wire groove, through elbow clamp, fixes the copper line in the first wire groove and prevents its removal when bending, rotates the handle until the handle and angle limit block abut, can complete the horizontal plane first bending of flat copper line to the copper line shift to the press bending tool, and the end portion of copper line is matched and is embedded in the second wire groove, and the part of copper line that is first bent is located in the projection area of the press bending forming surface outside the second wire groove, under the driving force of pressure equipment, the upper die and lower die close the die, and the part of copper line that is first bent is secondly bent and is formed, and the generator lead-out terminal wire of spatial bending shape is formed, and the size of the lead-out terminal wire that is formed is accurate, and the forming efficiency is fast, and the tool personnel's hand cost is low, and the processing efficiency and processing quality of lead-out terminal wire are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram after the processing and forming of the lead-out terminal wire in the prior art.

[0018] Figure 2 It is the overall structure schematic diagram of the bending tool of the embodiment of the application.

[0019] Figure 3 It is the explosion structure schematic diagram of the bending tool of the embodiment of the application.

[0020] Figure 4 It is the structure schematic diagram of the press bending tool of the embodiment of the application.

[0021] Wherein, 11, fixed block, 12, first wire groove, 13, elbow clamp, 14, limiting bolt, 15, connecting block, 21, handle, 22, bending wheel, 23, rotating shaft, 24, first bearing, 25, fixed column, 26, second bearing, 3, angle limit block, 31, strip hole, 32, screw, 4, bottom plate, 51, lower die, 52, upper die, 53, second wire groove, 54, press bending forming surface, 55, guide column. DETAILED DESCRIPTION

[0022] In order to better understand the above technical solutions, the above technical solutions will be described in detail in the following with reference to the drawings and specific embodiments.

[0023] The embodiment of the application discloses a civil aircraft APU generator lead-out terminal wire forming tool, referring to Figure 2 And Figure 3 , including the bending tool for horizontal first bending of copper line, and the press bending tool for second bending of the copper line after first bending, through twice bending, the required spatial distortion shape of generator lead-out terminal wire is formed.

[0024] The bending tool includes a first positioning seat, a bending assembly and an angle limiting block 3 installed on the same base plate 4. The first positioning seat is used for accommodating and positioning the copper wire end portion, and a first positioning assembly is arranged on the first positioning seat for clamping and fixing the copper wire end portion. The bending assembly is located on one side of the first positioning seat and includes a handle 21 having one end rotatably connected to the base plate 4. Two bending wheels 22 are horizontally arranged on the handle 21, and a threading gap for the copper wire is formed between the two bending wheels 22. The axis of any one of the bending wheels 22 is collinear with the rotating shaft 23 of the handle 21. The angle limiting block 3 is located on one side of the bending assembly and is located on the rotating path of the handle 21. The angle limiting block 3 abuts against the side wall of the handle 21 to limit the continuous rotation of the handle 21 for bending the copper wire.

[0025] Specifically, the first positioning seat includes a fixed block 11 fixed to the base plate 4. A first linear groove 12 is formed in the top wall of the fixed block 11. The first linear groove 12 is open at one end close to the bending assembly, and the copper wire can be inserted into the first linear groove 12. The length of the copper wire end portion is limited by the length of the first linear groove 12 itself, ensuring that the bending positions of each lead terminal wire are consistent. In the embodiment, the first positioning assembly includes an elbow clamp 13 fixed to the top of the fixed block 11. The elbow clamp 13 is located on one side of the first linear groove 12, and the lower pressing end of the elbow clamp 13 faces the upper opening of the first linear groove 12. When the copper wire is inserted into the first linear groove 12, the lower pressing end of the elbow clamp 13 is pressed onto the copper wire in the first linear groove 12 by operating the elbow clamp 13. The copper wire can be fixed and clamped on the fixed block 11, and the copper wire end remains fixed during bending.

[0026] The bending assembly further includes a rotating shaft 23 fixedly connected to the base plate 4. The rotating shaft 23 is sleeved with a first bearing 24, and the handle 21 is rotatably connected to the rotating shaft 23 through the first bearing 24. One of the bending wheels 22 is sleeved and connected to the rotating shaft 23. A fixed column 25 is fixedly arranged on one side of the handle 21 located on the rotating shaft 23. The fixed column 25 is sleeved with a second bearing 26, and the other bending wheel 22 is rotatably connected to the fixed column 25 through the second bearing 26. The first bearing 24 and the second bearing 26 are both deep groove ball bearings, and the threading gap between the two bending wheels 22 is the same height as the first linear groove 12.

[0027] Referring to Figure 4 The bending tool includes a first positioning seat, a bending assembly and an angle limiting block 3 installed on the same base plate 4. The first positioning seat is used for accommodating and positioning the copper wire end portion, and a first positioning assembly is arranged on the first positioning seat for clamping and fixing the copper wire end portion. The bending assembly is located on one side of the first positioning seat and includes a handle 21 having one end rotatably connected to the base plate 4. Two bending wheels 22 are horizontally arranged on the handle 21, and a threading gap for the copper wire is formed between the two bending wheels 22. The axis of any one of the bending wheels 22 is collinear with the rotating shaft 23 of the handle 21. The angle limiting block 3 is located on one side of the bending assembly and is located on the rotating path of the handle 21. The angle limiting block 3 abuts against the side wall of the handle 21 to limit the continuous rotation of the handle 21 for bending the copper wire. The bending tool includes a first positioning seat, a bending assembly and an angle limiting block 3 installed on the same base plate 4. The first positioning seat is used for accommodating and positioning the copper wire end portion, and a first positioning assembly is arranged on the first positioning seat for clamping and fixing the copper wire end portion. The bending assembly is located on one side of the first positioning seat and includes a handle 21 having one end rotatably connected to the base plate 4. Two bending wheels 22 are horizontally arranged on the handle 21, and a threading gap for the copper wire is formed between the two bending wheels 22. The axis of any one of the bending wheels 22 is collinear with the rotating shaft 23 of the handle 21. The angle limiting block 3 is located on one side of the bending assembly and is located on the rotating path of the handle 21. The angle limiting block 3 abuts against the side wall of the handle 21 to limit the continuous rotation of the handle 21 for bending the copper wire.

[0028] The top wall of the lower pressing die 51 is vertically fixedly connected with guide columns 55, at least two guide columns 55 are provided, and a guide hole is vertically and penetratingly provided on the upper pressing die 52, the guide hole corresponds to the guide column 55 one by one, and the upper pressing die 52 can vertically slide relative to the lower pressing die 51 through cooperation of the guide column 55 and the guide hole.

[0029] After the copper wire is fixed by the bending assembly, the handle 21 is rotated, and the copper wire is once horizontally bent when the handle 21 abuts against the angle limiting block 3. Subsequently, the copper wire is transferred to the press bending tool, the end portion of the copper wire is aligned and embedded in the second wire slot 53, the second wire slot 53 has a length sufficient to bend and accommodate the straight portion of the end portion of the copper wire, the first bent portion of the copper wire abuts at the end opening of the second wire slot 53 in the region close to the press bending forming surface 54 to complete positioning of the copper wire, and the first bent portion of the copper wire is projected on the press bending forming surface 54. Under the action of the press machine, the lower pressing die 51 and the upper pressing die 52 are combined, the press bending forming surfaces 54 on the lower pressing die 51 and the upper pressing die 52 are matched, and the first bent portion of the copper wire is secondly bent to form a spatially twisted shape.

[0030] Further, the fixed block 11 is further provided with a first adjusting assembly for limiting the position of the end portion of the copper wire at the end portion of the wire slot away from the bending assembly, and the position of the end portion of the copper wire in the first wire slot 12 can be adjusted to adaptively adjust the position of the first bending of the copper wire. Specifically, the first adjusting assembly comprises a limiting bolt 14, a connecting block 15 is fixedly provided on the fixed block 11 at the end portion of the first wire slot 12 away from the bending assembly, the limiting bolt 14 is threadedly connected to the connecting block 15, one end of the limiting bolt 14 extends into the first wire slot 12 and abuts against the end portion of the copper wire, and the length of the limiting bolt 14 extending into the first wire slot 12 can be adjusted to adjust the length of the copper wire embedded in the first wire slot 12.

[0031] Further, the angle limiting block 3 is movably arranged on the bottom plate 4, a strip-shaped hole 31 is horizontally provided on the angle limiting block 3, a screw 32 is movably arranged in the strip-shaped hole 31, the screw 32 is threadedly connected to the bottom plate 4, the position and angle of the angle limiting block 3 are adjustable within a certain range with the screw 32 as the center, and the angle limiting block 3 is fixed after being adjusted and tightened by the screw 32. The angle limiting block 3 can be adjusted to a suitable position by moving and rotating the angle limiting block 3, the rotation of the handle 21 is limited to a specified angle by the angle limiting block 3, the copper wire is bent at different angles, and the adaptability of the tool is improved.

[0032] Those skilled in the art will appreciate that although a preferred embodiment of the present application has been described, those skilled in the art will be able to devise alterations and modifications of the preferred embodiment without departing from the spirit and scope of the present application. Accordingly, it is intended that the appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the present application. It is apparent that those skilled in the art can, without departing from the spirit and scope of the present application, make various changes and modifications of the present application. Thus, it is intended that the present application cover all such changes and modifications that fall within the scope of the present application, together with all such changes and modifications as are within the scope of the claims below and their equivalents.

Claims

1. A tooling for forming lead terminal wires of a civil aircraft APU generator, characterized in that: include: A bending fixture for bending copper wire horizontally in one step includes a first positioning seat, a bending component and an angle limiting block (3). The first positioning seat, the bending component and the angle limiting block (3) are all set on a base plate (4). The first positioning seat is used to accommodate and position the end of the copper wire. The first positioning seat is provided with a first positioning component for fixing the end of the copper wire. The bending component is located on one side of the first positioning seat. The bending component includes a handle (21) that is horizontally rotatable. Two bending wheels (22) are horizontally arranged on the handle (21). A wire threading gap is formed between the two bending wheels (22). The axis of any bending wheel (22) is collinear with the pivot (23) of the handle (21). The angle limiting block (3) is located on the side of the bending component away from the first positioning seat. The angle limiting block (3) is used to abut against the handle (21) to limit the rotation of the handle (21). A bending fixture is used to bend copper wire a second time after a first bend. It is set on a pressure device and includes a lower die (51) and an upper die (52). The lower die (51) is provided with a second groove (53) for accommodating and positioning the end of the copper wire. Both the upper die (52) and the lower die (51) are provided with bending forming surfaces (54) for cooperating in forming the copper wire.

2. The forming fixture for the lead terminal wire of a civil aircraft APU generator according to claim 1, characterized in that, The first positioning seat includes a fixing block (11), and the fixing block (11) is provided with a first wire groove (12) for accommodating and positioning the end of the copper wire. The first wire groove (12) is open at one end near the bending component. The first positioning component includes an elbow clamp (13), which is disposed on the fixing block (11) and located on one side of the first groove (12), with the lower pressing end of the elbow clamp (13) facing the upper opening of the first groove (12).

3. The forming fixture for the lead terminal wire of a civil aircraft APU generator according to claim 2, characterized in that, The fixing block (11) is provided with a first adjusting component for limiting the position of the copper wire end at the end of the wire groove away from the bending component. The first adjusting component includes a limiting bolt (14). A connecting block (15) is fixedly provided on the fixing block (11) at the end of the first wire groove (12) away from the bending component. The limiting bolt (14) is threaded onto the connecting block (15). One end of the limiting bolt (14) extends into the first wire groove (12) and abuts against the end of the copper wire.

4. The forming fixture for the lead terminal wire of a civil aircraft APU generator according to claim 1, characterized in that, The bending assembly also includes a rotating shaft (23), which is fixedly connected to the base plate (4). The rotating shaft (23) is fitted with a first bearing (24). The handle (21) is rotatably connected to the rotating shaft (23) through the first bearing (24). One bending wheel (22) is fitted and connected to the rotating shaft (23). A fixing post (25) is fixedly installed on the handle (21) on one side of the rotating shaft (23). A second bearing (26) is fitted on the fixing post (25). The other bending wheel (22) is rotatably connected to the fixing post (25) through the second bearing (26).

5. The forming fixture for the lead terminal wire of a civil aircraft APU generator according to claim 4, characterized in that, The angle limiting block (3) has a horizontally open strip hole (31), and a screw (32) is movably installed in the strip hole (31). The screw (32) is threadedly connected to the base plate (4).

6. A forming fixture for the lead terminal wires of a civil aircraft APU generator according to any one of claims 1 to 5, characterized in that, At least two guide posts (55) are vertically arranged on the lower die (51), and the guide posts (55) slide vertically through the upper die (52).

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