Manufacturing device and method of aviation retainer ring

Abstract

The invention belongs to the technical field of aeronautical part manufacturing, and relates to a manufacturing device and method for an aeronautical clamping ring. The wire feeding part is used for conveying rectangular steel wires, the production efficiency is improved, and manual operation errors are reduced. The sliding groove provides a stable guide forming channel for the rectangular steel wire, the contact face of the wide face of the rectangular steel wire and the support base is increased, and the problem of wide face friction caused by steel wire inclination in a traditional process is solved. And the rectangular steel wire is bent and formed by applying pressure to the rectangular steel wire through the mandrel. And the mandrel is rotationally connected with the bracket base, so that the mandrel is in sliding contact with the rectangular steel wire, the contact friction force is reduced, and the problem of extrusion deformation of the raw material steel wire is effectively reduced. The linear position adjusting part is used for adjusting the position of the support base in the first direction, and the forming radius of the clamping ring can be adjusted. And the discharge port mandrel is positioned between the wire feeding part and the bracket base. And the discharge port is used for limiting a steel wire output path and is matched with the mandrel to bend and form the rectangular steel wire.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aviation part manufacturing, and relates to a manufacturing device and method of an aviation ring. BACKGROUND

[0002] In the field of aviation manufacturing, the ring is widely used in valve mechanism as a fastener to limit the position, and the structure of the ring is shown in Figure 1 and Figure 2 The steel wire section of the ring is rectangular. Referring to Figure 3 , the traditional process of the ring adopts a general lathe and a special tool to manufacture, and in the forming process, the slotted mandrel is first fixed on the spindle chuck of the general lathe, then the rectangular steel wire is installed in the slot of the slotted mandrel, and then the other side of the rectangular steel wire is pressed by a pressing wheel, the slotted mandrel is driven to rotate by starting the general lathe, and the rectangular steel wire is extruded into a circular ring. The formed steel wire circular ring is further processed by quenching, cutting, and punching to manufacture the ring.

[0003] In the forming process, the slot of the slotted mandrel extrudes the narrow side of the rectangular steel wire to make the rectangular steel wire bent into a ring, and due to the small contact surface, the extrusion force is large, and serious extrusion friction marks are generated on the narrow side of the rectangular steel wire. At the same time, in the forming process, the rectangular steel wire is easy to produce slight inclination, and the wide side of the rectangular steel wire is rubbed with the edge of the slot of the slotted mandrel, and after processing, different depth scratches are generated on the wide side of the rectangular steel wire, which affects the product quality. SUMMARY

[0004] The purpose of the application is to provide a manufacturing device and method of an aviation ring to solve the technical problems that the rectangular steel wire is easy to produce friction marks and the steel wire is easy to incline in the ring processing process.

[0005] In order to achieve the above purpose, the application adopts the following technical scheme: In a first aspect, the application provides a manufacturing device of an aviation ring, comprising: a wire feeding part for conveying the rectangular steel wire; a support base provided with a sliding groove, the sliding groove being suitable for the rectangular steel wire to pass through; a mandrel penetrating through the support base and passing through the sliding groove, the mandrel being rotationally connected with the support base; a linear position adjusting part fixedly connected with the support base for adjusting the position of the support base in a first direction, the first direction being perpendicular to the conveying direction of the rectangular steel wire; an outlet mandrel provided with an outlet suitable for the rectangular steel wire to pass through, the outlet mandrel being located between the wire feeding part and the support base.

[0006] Further, the wire feeding part comprises a first power unit, a first wire feeding wheel and a second wire feeding wheel, the first power unit is connected to the input ends of the first wire feeding wheel and the second wire feeding wheel through a transmission unit, the first wire feeding wheel and the second wire feeding wheel are arranged in the same plane, and a conveying channel of the rectangular steel wire is formed between the first wire feeding wheel and the second wire feeding wheel.

[0007] Further, a feeding groove is formed on the circumferential surface of the second wire feeding wheel, and a conveying channel of the rectangular steel wire is formed between the circumferential surface of the first wire feeding wheel and the feeding groove.

[0008] Further, two bearing mounting holes are formed on the support base, the two bearing mounting holes are communicated with the sliding groove, the mandrel is arranged in the bearing mounting hole, a bearing is arranged between the mandrel and the bearing mounting hole, the gap between the two bearings is 0.2-0.3 mm larger than the thickness of the rectangular steel wire, and the width of the sliding groove is 1.5-2.5 times the thickness of the rectangular steel wire.

[0009] Further, the width of the sliding groove is 0.2-0.3 mm larger than the thickness of the rectangular steel wire, and the distance from the notch of the sliding groove to the mandrel is greater than the width of the rectangular steel wire.

[0010] Further, the mandrel is provided with an annular protrusion, a limiting pin is further arranged on the mandrel, the limiting pin and the annular protrusion are located on the two sides of the support base respectively, and an open elastic retainer ring is arranged between the limiting pin and the support base.

[0011] Further, the linear position adjusting part comprises a second power unit, a sliding seat and a sliding block, the output end of the second power unit is connected to the sliding block through a transmission part, the sliding block is slidably connected to the sliding seat, and the sliding block is connected to the support base.

[0012] Further, the distance between the discharge port mandrel and the support base is greater than or equal to a set value.

[0013] In a second aspect, the application provides a manufacturing method of an aviation ring, based on the manufacturing device of the aviation ring, comprising the following steps: The wire feeding part continuously feeds the rectangular steel wire, the rectangular steel wire passes through the discharge port mandrel and enters the sliding groove of the support base, the mandrel applies pressure to the rectangular steel wire, and the rectangular steel wire forms a steel wire ring under the action of the discharge port mandrel and the mandrel; The linear position adjusting part adjusts the position of the support base in the first direction, so as to change the radius of the steel wire ring; The steel wire ring is cut into a plurality of rings.

[0014] Further, the following steps are further included: The steel wire loop is sleeved on a quenching mandrel, and quenching is carried out in a vacuum furnace or a protective atmosphere furnace; The quenched steel wire loop is cut into single loops; The ends of the single loop are punched by a punch; The punched single loop is deburred and derusted; The deburred and derusted single loop is electro-polished to adjust the thickness of the clamping ring, and the clamping ring is obtained.

[0015] Compared with the prior art, the present application has the following beneficial effects: The wire feeding part is used for conveying rectangular steel wires, which is beneficial to improve production efficiency and reduce human operation errors. The sliding groove provides a stable guiding forming channel for the rectangular steel wire, increases the contact surface between the wide surface of the rectangular steel wire and the support base, and avoids the wide surface friction problem caused by the inclination of the steel wire in the traditional process. The core shaft applies pressure to the rectangular steel wire to make it bend and form. The core shaft is rotatably connected with the support base, so that the core shaft and the rectangular steel wire are in sliding contact, reducing the contact friction force and effectively reducing the extrusion deformation problem of the raw material steel wire. The linear position adjusting part is used for adjusting the position of the support base in the first direction, and the clamping ring forming radius can be adjusted. The discharge port core shaft is located between the wire feeding part and the support base. The discharge port is used to limit the steel wire output path, and cooperates with the core shaft to make the rectangular steel wire bend and form. The present application improves production efficiency and reduces human operation errors through the setting of the wire feeding part. The extrusion of the discharge port core shaft cooperates with the core shaft to make the rectangular steel wire bend and form. During the forming process, the core shaft and the rectangular steel wire are in rolling contact, reducing the contact friction force and effectively reducing the extrusion deformation problem of the raw material steel wire. The setting of the sliding groove avoids the wide surface friction problem caused by the inclination of the steel wire.

[0016] The present application continuously feeds rectangular steel wires through the wire feeding part, the rectangular steel wires pass through the discharge port core shaft into the sliding groove of the support base, the core shaft applies pressure to the rectangular steel wire, and the rectangular steel wire forms a steel wire loop under the action of the discharge port core shaft and the core shaft. During the process, the core shaft and the rectangular steel wire are in rolling contact, reducing the contact friction force and effectively reducing the extrusion deformation problem of the raw material steel wire. The linear position adjusting part adjusts the position of the support base in the first direction, thereby changing the radius of the steel wire loop. Specifically, when the support base moves towards the side of the rectangular steel wire, the radius of the steel wire loop becomes smaller, and when the support base moves away from the side of the rectangular steel wire, the radius of the steel wire loop becomes larger. The steel wire loop is cut into clamping rings. The present application effectively reduces the extrusion deformation problem of the raw material steel wire and improves the processing efficiency of the clamping ring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a clamping ring structure diagram; Figure 2It is a side view of the clasp; Figure 3 It is a structural schematic diagram of a traditional processing clasp; Figure 4 It is a whole structural schematic diagram of the embodiment of the application; Figure 5 It is an exploded view of the clasp forming support of the embodiment of the application; Figure 6 It is a structural schematic diagram of the support base of the embodiment of the application; Figure 7 It is a side view of the Figure 6 ; Figure 8 It is a structural schematic diagram of the mandrel of the embodiment of the application; Figure 9 It is a structural schematic diagram of the linear position adjusting part of the embodiment of the application; Figure 10 It is a structural schematic diagram of the wire feeding part of the embodiment of the application; Figure 11 It is a bottom view of the Figure 10 ; Figure 12 It is a flow chart of the method of the embodiment of the application; Figure 13 It is a process flow chart of the embodiment of the application.

[0018] 1, the mandrel with a groove; 101, the main shaft chuck; 102, the slot; 103, the compression wheel; 2, the rectangular steel wire; 201, the clasp; 3, the wire feeding part; 301, the first wire feeding wheel; 302, the second wire feeding wheel; 303, the feeding groove; 4, the support base; 401, the open elastic check ring; 402, the bearing; 403, the mandrel; 404, the limit pin; 405, the sliding groove; 406, the bearing mounting hole; 407, the annular protrusion; 5, the linear position adjusting part; 501, the second power unit; 502, the eccentric wheel; 503, the connecting rod; 504, the sliding seat; 505, the sliding block; 506, the tool holder; 6, the discharge port mandrel. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art better understand the application scheme, the technical scheme in the embodiment of the application will be described clearly and completely below in combination with the drawings in the embodiment of the application. Obviously, the described embodiment is only a part of the embodiment of the application, not all. Based on the embodiment in the application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the application.

[0020] It should be noted that the terms "first", "second", and the like in the description of the application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0021] The application will be further described in detail below in conjunction with the accompanying drawings: Embodiment 1: Referring to Figure 1 and Figure 2 The structure of the collar 201 is shown in the figure, and the cross section of the steel wire of the collar 201 is rectangular. Referring to Figure 3 The general lathe for manufacturing the collar 201 in the traditional process includes a spindle chuck 101, a slotted mandrel 1 and a pressing wheel 103. In the forming process of the collar 201, the pressing wheel 103 cooperates with the narrow side of the extruded rectangular steel wire 2 to drive the rectangular steel wire 2 to bend into a ring shape by matching the slot 102 of the slotted mandrel 1. Since the contact surface is small, the extrusion force is large, and serious extrusion friction marks are generated on the narrow side of the rectangular steel wire 2. At the same time, in the forming process, the rectangular steel wire 2 is prone to slight inclination, and the wide side of the rectangular steel wire 2 rubs against the edge of the slot 102 of the slotted mandrel 1, so that different depth scratches are generated on the wide side of the rectangular steel wire 2 after processing, which affects the product quality.

[0022] Referring to Figure 4 To solve the problems existing in the traditional process for manufacturing the collar 201, the application discloses a device for manufacturing an aviation collar, which comprises a wire feeding part 3, a support base 4, a mandrel 403, a linear position adjusting part 5 and a discharge port mandrel 6.

[0023] Referring to Figure 10 In the embodiment of the application, the wire feeding part 3 is used to convey the rectangular steel wire 2, so as to realize automatic and continuous conveying of the steel wire, which is beneficial to improve the production efficiency and reduce human operation errors.

[0024] Referring to Figure 10Preferably, the wire feeding part 3 comprises a first power unit, a first wire feeding wheel 301 and a second wire feeding wheel 302, the first power unit is connected with the input ends of the first wire feeding wheel 301 and the second wire feeding wheel 302 through a transmission unit, the first wire feeding wheel 301 and the second wire feeding wheel 302 are arranged in the same plane, and a conveying channel of the rectangular steel wire 2 is formed between the first wire feeding wheel 301 and the second wire feeding wheel 302.

[0025] Referring to Figure 11 Preferably, a feeding groove 303 is arranged on the circumferential surface of the second wire feeding wheel 302, and the feeding groove 303 and the circumferential surface of the first wire feeding wheel 301 form the conveying channel of the rectangular steel wire 2.

[0026] Referring to Figure 7 In the embodiment of the present application, the support base 4 is provided with a sliding groove 405, and the sliding groove 405 is adapted to pass through the rectangular steel wire 2. The sliding groove 405 provides a stable guiding and forming channel for the rectangular steel wire 2, increases the contact area between the wide surface of the rectangular steel wire 2 and the support base 4, and avoids the wide surface friction caused by the inclination of the steel wire in the traditional process.

[0027] Referring to Figure 6 Preferably, two bearing mounting holes 406 are arranged on the support base 4, the two bearing mounting holes 406 are in communication with the sliding groove 405, the mandrel 403 is arranged in the bearing mounting hole 406, and a bearing 402 is arranged between the mandrel 403 and the bearing mounting hole 406, so as to reduce the rotation resistance of the mandrel 403 and further reduce the friction between the mandrel 403 and the rectangular steel wire 2. The gap between the two bearings 402 is 0.2-0.3 mm larger than the thickness of the rectangular steel wire 2, which on the one hand does not hinder the passing of the rectangular steel wire 2, and on the other hand is used for righting the rectangular steel wire 2 to avoid the inclination of the rectangular steel wire 2. The width of the sliding groove 405 is 1.5-2.5 times the thickness of the rectangular steel wire 2.

[0028] Preferably, the bearing 402 is a bearing with a flange.

[0029] Referring to Figure 4 and Figure 5 In the embodiment of the present application, the mandrel 403 is arranged on the support base 4 and passes through the sliding groove 405, and the rectangular steel wire 2 is bent and formed by the pressure applied by the mandrel 403. The mandrel 403 is rotationally connected with the support base 4, so that the rolling contact is formed between the mandrel 403 and the rectangular steel wire 2, the contact friction is reduced, and the extrusion deformation problem of the raw material steel wire is effectively reduced.

[0030] Referring to Figure 5 and Figure 8Preferably, the mandrel 403 is provided with a ring-shaped protrusion 407, and a limiting pin 404 is arranged on the mandrel 403, the limiting pin 404 and the ring-shaped protrusion 407 are located on two sides of the bracket base 4 respectively, and an open elastic retainer ring 401 is arranged between the limiting pin 404 and the bracket base 4.

[0031] Referring to Figure 4 In the embodiment, the linear position adjusting part 5 is fixedly connected with the bracket base 4, and is used for adjusting the position of the bracket base 4 in a first direction AB, the first direction AB is perpendicular to the conveying direction of the rectangular steel wire 2. The position of the mandrel 403 and the discharge port can be accurately adjusted by the linear position adjusting part 5, so that the adjustment of the forming radius of the collar 201 can be realized.

[0032] Referring to Figure 9 Preferably, the linear position adjusting part 5 comprises a second power unit 501, a sliding seat 504 and a sliding block 505, the output end of the second power unit 501 is connected with the sliding block 505 through a transmission component, the sliding block 505 is slidingly connected with the sliding seat 504, and the sliding block 505 is connected with the bracket base 4.

[0033] The second power unit 501 is a servo motor; The transmission component comprises an eccentric wheel 502 and a connecting rod 503, the output end of the servo motor is connected with the input end of the eccentric wheel 502, the connecting rod 503 is rotationally connected with the eccentric wheel 502, the connecting rod 503 is rotationally connected with the sliding block 505, the connecting point of the connecting rod 503 and the eccentric wheel 502 is not coincident with the connecting point of the connecting rod 503 and the sliding block 505, the sliding block 505 is provided with a tool holder 506, and the bracket base 4 is connected with the sliding block 505 through the tool holder 506.

[0034] Referring to Figure 4 In the embodiment, the discharge port mandrel 6 is provided with a discharge port, the discharge port is suitable for the rectangular steel wire 2 to pass through, and the discharge port mandrel 6 is located between the wire feeding part 3 and the bracket base 4. The discharge port is used for limiting the output path of the steel wire, and cooperates with the mandrel 403 to make the rectangular steel wire 2 be bent and formed, so that the rectangular steel wire 2 is prevented from deviating or rebounding in the process of being bent and formed, and the stability of the bending process is maintained.

[0035] Preferably, the spacing between the discharge port mandrel 6 and the bracket base 4 is greater than or equal to a set value.

[0036] Referring to Figure 12 Based on the above structure, the application further discloses a manufacturing method of the aviation collar, and the manufacturing method comprises the following steps: S1, the wire feeding part 3 continuously feeds the rectangular steel wire 2, the rectangular steel wire 2 passes through the discharge port mandrel 6 and enters the sliding groove 405 of the support base 4, the mandrel 403 applies pressure to the rectangular steel wire 2, and the rectangular steel wire 2 forms a wire ring under the action of the discharge port mandrel 6 and the mandrel 403. During the process, the mandrel 403 is in rolling contact with the rectangular steel wire 2, which reduces the contact friction and effectively reduces the extrusion deformation of the raw material wire.

[0037] S2, the linear position adjusting part 5 adjusts the position of the support base 4 in the first direction AB, so as to change the radius of the wire ring. Specifically, when the support base 4 moves towards one side of the rectangular steel wire 2, the radius of the wire ring becomes smaller, and when the support base 4 moves away from the other side of the rectangular steel wire 2, the radius of the wire ring becomes larger.

[0038] In the embodiment of the application, the following steps are further included: The wire ring is sleeved on a quenching mandrel, and quenching is performed in a vacuum furnace or a protective atmosphere furnace.

[0039] S3, the wire ring is cut into a plurality of rings 201, specifically as follows: The quenched wire ring is cut into a plurality of single rings; The single ring is punched at both ends by a punch; The punched single ring is deburred and derusted; The deburred and derusted single ring is electro-polished to adjust the thickness of the ring, and the ring 201 is obtained.

[0040] The production efficiency is improved and the human operation error is reduced by the setting of the wire feeding part 3. The discharge port mandrel 6 cooperates with the extrusion of the mandrel 403 to make the rectangular steel wire 2 bend and form. During the forming process, the mandrel 403 is in rolling contact with the rectangular steel wire 2, which reduces the contact friction and effectively reduces the extrusion deformation of the raw material wire. The setting of the sliding groove 405 avoids the problem of wide surface friction caused by the inclination of the wire.

[0041] Embodiment 2: Referring to Figures 4 to 11 The present application discloses a kind of aviation ring production devices, different from above-mentioned embodiment 1, the width of the sliding groove 405 of this embodiment is 0.2 to 0.3 mm greater than the thickness of rectangular steel wire 2, on the one hand, rectangular steel wire 2 is not hindered, on the other hand, it is used to right rectangular steel wire 2, avoid rectangular steel wire 2 inclination. The distance from the notch of the sliding groove 405 to the mandrel 403 is greater than the width of the rectangular steel wire 2, to ensure that the side of the rectangular steel wire 2 is located in the sliding groove 405, to avoid scratch.

[0042] Embodiment 3: Referring to Figures 4 to 11The application discloses a manufacturing device of an aviation ring, which is combined with a ring process flow, solves the surface scratch problem in the ring manufacturing process, and reduces the manufacturing difficulty of the ring and improves the manufacturing efficiency.

[0043] The application comprises a wire feeding part 3, a support base 4, a mandrel 403, a linear position adjusting part 5 and a discharge port mandrel 6.

[0044] The linear position adjusting part 5 comprises a second power unit 501, a sliding seat 504 and a sliding block 505, the output end of the second power unit 501 is connected with the sliding block 505 through a transmission component, the sliding block 505 is slidably connected with the sliding seat 504, and the sliding block 505 is connected with the support base 4.

[0045] The second power unit 501 is a servo motor; The transmission component comprises an eccentric wheel 502 and a connecting rod 503, the output end of the servo motor is connected with the input end of the eccentric wheel 502, the connecting rod 503 is rotatably connected with the eccentric wheel 502, the connecting rod 503 is rotatably connected with the sliding block 505, the connecting point of the connecting rod 503 and the eccentric wheel 502 is not coincident with the connecting point of the connecting rod 503 and the sliding block 505, a tool holder 506 is arranged on the sliding block 505, and the support base 4 is connected with the sliding block 505 through the tool holder 506.

[0046] The wire feeding part 3 is driven by an independent servo motor, the wire feeding part 3 is used for moving forward and backward after clamping the rectangular steel wire 2, extends from the discharge port of the discharge port mandrel 6, and provides power for part forming. In the application, the stress surface of the rectangular steel wire 2 changes from the narrow side of the steel wire to the wide side of the steel wire, the surface pressure of the raw material is reduced, and the surface of the steel wire is avoided from being pressed and injured.

[0047] The support base 4 is installed on the tool holder 506 of the sliding block 505.

[0048] The support base 4 is made of 45# carbon steel and is subjected to quenching treatment, the hardness is required to be 30-35HRC, the diameter of the bearing mounting hole 406 is consistent with the outer diameter of the bearing 402, the width of the sliding groove 405 is 1.5-2.5 times the thickness of the steel wire, and the distance between the two bearings is the thickness of the steel wire plus 0.2-0.3mm.

[0049] The inner diameter of the open elastic retainer ring 401 is consistent with the diameter of the mandrel 403, the outer diameter of the open elastic retainer ring 401 is consistent with the inner diameter of the inner ring of the bearing 402, and when the open elastic retainer ring 401 is pressed by the limit pin 404, the open elastic retainer ring 401 can provide the pressing force for pressing the mandrel 403 and the bearing 402.

[0050] The bearing 402 is selected from bearings with flanges and is installed in the bearing mounting hole 406.

[0051] The mandrel 403 is made of high-hardness die steel and is quenched, and the hardness is required to be greater than or equal to 58HRC. The diameter of the mandrel 403 is consistent with the inner diameter of the bearing 402, and since the mandrel 403 is in contact with the part, the surface roughness is required to be greater than or equal to Ra0.8. A pin hole is processed on the mandrel 403, and a limiting pin 404 is arranged in the pin hole.

[0052] The limiting pin 404 is made of steel wire and is arranged in the hole of the mandrel 403. The open elastic retainer 401 is used to press the mandrel 403 and the bearing 402 tightly, so that the mandrel 403 is prevented from jumping in the axial direction during rotation, thereby affecting the forming size.

[0053] The installation sequence of the special support for the ring forming is as follows: The support base 4 is installed on the tool holder 506. The bearing with a flange is installed on the support base 4. The mandrel 403 is arranged in the two bearings 402. The open elastic retainer 401 is arranged on the mandrel 403. The limiting pin 404 is arranged in the pin hole.

[0054] When the limiting pin 404 is installed, the open elastic retainer 401 can be rotated to a position with small pressing force first. After the limiting pin 404 is installed, the open elastic retainer 401 is rotated again, so that the pressing force of the open elastic retainer 401 is increased, thereby pressing the mandrel 403 and the bearing 402 tightly. Under the driving of the bearing 402, the mandrel 403 is in rolling contact with the original rectangular steel wire 2, the contact friction force is reduced, and the extrusion deformation of the original material steel wire is effectively reduced.

[0055] The mandrel 403 is worn and deformed after long-term use, which affects the diameter accuracy of the ring. In actual use, the mandrel 403 should be replaced in time according to the damage condition.

[0056] The forming principle diagram of the ring 201 is shown in Figure 4 , and the specific working principle is as follows: S1, the special support base 4 for the ring forming is installed on the tool holder 506, and the tool holder 506 is adjusted. The distance L between the support base 4 and the discharge port mandrel 6 is fine-adjusted. The larger the distance L is, the larger the diameter of the formed ring is. The distance L should not be less than 0.2mm, so as to prevent the risk of tool collision during the movement of the slide shaft.

[0057] S2, the discharge port mandrel 6 is adjusted, and the rectangular steel wire is stretched out from the discharge port of the discharge port mandrel 6.

[0058] S3, adjust the linear position adjusting part 5, and extrude the rectangular steel wire 2 with the mandrel 403 of the support base 4; the greater the extrusion force of the mandrel 403 on the rectangular steel wire 2, the smaller the diameter of the ring 201.

[0059] S4, adjust the wire feeding part 3 to continuously feed the rectangular steel wire 2, and measure the diameter of the bent and formed ring; when the diameter of the ring 201 is large, the support base 4 is adjusted downward through the linear position adjusting part 5; when the diameter of the ring 201 is small, the support base 4 is adjusted upward through the linear position adjusting part 5; if the diameter of the ring cannot be satisfied even if the limit position of the sliding seat 504 is reached, the distance L between the support base 4 and the mandrel 6 of the discharge port should be adjusted. Through repeated debugging, the diameter of the ring reaches the required value.

[0060] S5, design the wire feeding parameters, and continuously produce.

[0061] Referring to Figure 13 , the ring 201 is formed as follows: S10, forming; The universal automatic spring winding machine is adopted for forming, the wide surface of the rectangular raw material is selected as the pressure bearing surface during feeding debugging, so as to reduce the damage to the raw material during feeding. The special support for forming the ring is installed on the tool holder 506 of the sliding seat shaft, the parameters of the sliding seat shaft are adjusted, the diameter of the ring to be formed is about 0.5-2 mm smaller than the diameter of the ring, and after debugging, the steel wire is continuously processed into a string of wire rings.

[0062] S20, installing the mandrel; The string of wire rings is installed on the quenching mandrel and fixed and pressed. The diameter of the quenching mandrel deviates from the diameter of the ring by not more than 0.05 mm, and the diameter of the ring after quenching is ensured to meet the final requirements by considering the diameter expansion and contraction law of the ring during the quenching process of the material. When the diameter of the quenching mandrel is greater than 20 mm, a hollow structure is adopted, and the remaining wall thickness is about 3-5 times the width of the raw material, so as to accelerate the cooling speed during quenching.

[0063] S30, quenching; The quenching is performed in a vacuum furnace or a protective atmosphere furnace, and the hardness and brittleness of the quenched sample are checked.

[0064] S40, cutting; The string of wire rings is cut into single rings, and the remaining rings are cut off.

[0065] S50, punching the notch; The two ends of the ring are processed by punching with a punch. One end is cut first, and the other end is processed after the cutting position is determined by referring to the sample plate, so as to ensure that the relative angle of the two ends after cutting meets the requirements.

[0066] S60, deburring; The residual burrs after cutting are removed by using a file, sandpaper, felt wheel and other tools.

[0067] S70, sandblasting; The sandblasting removes rust on the surface of the ring.

[0068] S80, calibrating thickness; The thickness of the ring is adjusted by using an electro-polishing method, so that the thickness of the ring meets the requirements.

[0069] S90, inspection; The sizes such as the diameter, thickness and relative angle of the two ends of the ring are checked.

[0070] The present application solves the problem of scratches on the surface of the ring, and reduces the manufacturing difficulty and improves the manufacturing efficiency.

[0071] The above content only illustrates the technical idea of the present application, and cannot limit the protection scope of the present application. Any modification made according to the technical idea of the present application on the basis of the technical scheme falls within the protection scope of the present application.

Claims

1. An apparatus for making an aircraft collar, comprising: The utility model relates to a kind of rectangular wire feeding device, including: Wire feeding part (3) for conveying rectangular steel wire (2); Support base (4) is opened with sliding groove (405), the sliding groove (405) is suitable for rectangular steel wire (2) to pass through; Core shaft (403) is threaded on the support base (4) and passes through the sliding groove (405), the core shaft (403) is rotatably connected with the support base (4); Linear position adjusting part (5) is fixedly connected with the support base (4), for adjusting the position of the support base (4) in the first direction (AB), the first direction (AB) is perpendicular to the conveying direction of rectangular steel wire (2); Discharge port core shaft (6) is opened with discharge port, the discharge port is suitable for rectangular steel wire (2) to pass through, the discharge port core shaft (6) is located between the wire feeding part (3) and the support base (4).

2. An apparatus for making an aircraft collar according to claim 1, wherein, The wire feeding part (3) includes a first power unit, a first wire feeding wheel (301), and a second wire feeding wheel (302). The first power unit is connected to the input ends of the first wire feeding wheel (301) and the second wire feeding wheel (302) through a transmission unit. The first wire feeding wheel (301) and the second wire feeding wheel (302) are arranged in the same plane, and a conveying channel for the rectangular steel wire (2) is formed between the first wire feeding wheel (301) and the second wire feeding wheel (302).

3. An apparatus for making an aircraft collar according to claim 2, wherein, A feeding groove (303) is formed on the circumferential surface of the second wire feeding wheel (302). The feeding groove (303) and the circumferential surface of the first wire feeding wheel (301) form a conveying channel for the rectangular steel wire (2).

4. The apparatus of claim 1 wherein, Two bearing mounting holes (406) are formed on the support base (4). Both of the bearing mounting holes (406) are in communication with the sliding groove (405). The core shaft (403) is threaded in the bearing mounting hole (406). A bearing (402) is arranged between the core shaft (403) and the bearing mounting hole (406). The gap between the two bearings (402) is 0.2-0.3 mm larger than the thickness of the rectangular steel wire (2). The width of the sliding groove (405) is 1.5-2.5 times the thickness of the rectangular steel wire (2).

5. The apparatus of claim 1 wherein, The width of the sliding groove (405) is 0.2-0.3 mm larger than the thickness of the rectangular steel wire (2). The distance from the slot of the sliding groove (405) to the core shaft (403) is greater than the width of the rectangular steel wire (2).

6. The apparatus of claim 1, wherein: A ring-shaped protrusion (407) is arranged on the core shaft (403). A limiting pin (404) is also threaded on the core shaft (403). The limiting pin (404) and the ring-shaped protrusion (407) are respectively arranged on the two sides of the support base (4). An open elastic retainer ring (401) is arranged between the limiting pin (404) and the support base (4).

7. The apparatus of claim 1 wherein, The linear position adjusting part (5) includes a second power unit (501), a sliding seat (504), and a sliding block (505). The output end of the second power unit (501) is connected to the sliding block (505) through a transmission member. The sliding block (505) is slidably connected to the sliding seat (504). The sliding block (505) is connected to the support base (4).

8. The apparatus of claim 1 wherein, The interval between the outlet mandrel (6) and the support base (4) is greater than or equal to a set value.

9. A method of manufacturing an aircraft collar based on the manufacturing apparatus of any one of claims 1 to 8, characterized in that, The method comprises the following steps: The wire feeding part (3) continuously feeds the rectangular steel wire (2), the rectangular steel wire (2) passes through the outlet mandrel (6) and enters the sliding groove (405) of the support base (4), the mandrel (403) applies pressure to the rectangular steel wire (2), and the rectangular steel wire (2) forms a wire loop under the action of the outlet mandrel (6) and the mandrel (403); The linear position adjusting part (5) adjusts the position of the support base (4) in the first direction (AB), so as to change the radius of the wire loop; The wire loop is cut into a plurality of clamping rings (201).

10. The method of claim 9, wherein the step of forming the aviation collar comprises the step of: The method further comprises the following steps: The wire loop is sleeved on a quenching mandrel, and quenching is performed in a vacuum furnace or a protective atmosphere furnace; The quenched wire loop is cut into a plurality of single loops; The single loop is punched at both ends by a punch die; The single loop after punching is deburred and derusted; The single loop after deburring and derusting is electro-polished to adjust the thickness of the clamping ring, so as to obtain the clamping ring (201).

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