Turning and milling auxiliary machining method for machining special-shaped arc part and turning and milling auxiliary device

Abstract

The invention relates to a turning and milling auxiliary machining method and turning and milling auxiliary devices.The turning and milling auxiliary machining method aims at turning and milling of special-shaped arc parts of ocean underwater facilities, the turning auxiliary device and the milling auxiliary device are used for machining, and clamp bodies I are arranged at the two ends of the turning auxiliary device; the turning auxiliary device can clamp two part blanks at a time; the milling auxiliary device is further provided with a 45-degree inclined plane characteristic, namely, the milling auxiliary device is used for tool setting alignment machining of inclined planes on the two sides of a part blank, and meanwhile milling machining of the 45-degree inclined planes on the two sides of the part and a wide groove in the top is completed through the 45-degree inclined plane characteristic. According to the turning and milling auxiliary machining method, a matched tool is designed according to the fragile characteristic of the SBM050 material, meanwhile, the special-shaped arc piece meeting the size requirement is machined, batch production is guaranteed, and meanwhile, the quality of the part is stable and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing and manufacturing, and in particular to a turning and milling auxiliary processing method for processing special-shaped arc parts and a turning and milling auxiliary device. Background Art

[0002] According to the operating environment of the equipment, SBM050 is required, which is a low-density, high-strength lightweight composite material. It has the characteristics of low density, excellent mechanical properties, low and stable water absorption, and good weather resistance and seawater resistance. It can be used in marine underwater facilities to meet the requirements of marine exploration and marine mining.

[0003] However, the strength of this material is very brittle, and the corners of the parts are easily broken during milling, resulting in scrapping; at the same time, it is inconvenient to clamp (each part needs to have a process bracket for clamping), and the use of coolant during material processing increases tool wear and reduces the efficiency of single processing. Therefore, it is urgent to design a processing solution so that the parts can be mass-produced smoothly. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a turning and milling auxiliary processing method for processing special-shaped arc parts based on composite materials. The turning and milling auxiliary processing method is a two-process scheme for turning and milling special-shaped arc parts of marine underwater facilities using a turning auxiliary device and a milling auxiliary device, comprising the following steps:

[0005] Step S1: First, check whether the size of the part blank is qualified, and then use the turning auxiliary device to clamp the 8mm×20mm step feature structure on both sides of the lower part of the qualified part blank;

[0006] Step S2: The clamping part of the part blank is arranged in the clamping body I in the turning auxiliary device, that is, the part blank passes through the positioning inner frame feature body provided in the clamping body I for positioning, and the two are then connected by extrusion assembly through a pressing plate and screws II;

[0007] Step S3: Before processing, the four-claw mechanism on the lathe clamps the clamping plate in the turning auxiliary device, and then calibrates the inner hole Φ50 provided in the center of the entire turning auxiliary device and the inner end surface of the fixing plate;

[0008] Step S4: Then, the inner and outer arcs and the step arcs on both sides of the part blank are turned to the specified size features;

[0009] Step S5: After the inner and outer arcs and the step arcs on both sides are processed, the part blank is clamped again in the clamping body II provided on the milling auxiliary device;

[0010] Step S6: The part blank is tightly pressed and connected with the step end surface of the clamp body II in the longitudinal direction through the pressing plate II;

[0011] Step S7: The part blank is provided with a lower clamping body and an upper clamping body in the height direction for matching and assembling;

[0012] Step S8: Before processing, the tool on the milling machine sets the coordinate system through the inner hole on the clamp body II in the milling auxiliary device, and then mills off the process positioning steps on both sides of the part blank to the required size, and finally obtains the required anisotropic arc parts.

[0013] In one embodiment of the present invention, clamp bodies I are provided at both ends of the turning auxiliary device, so the turning auxiliary device can clamp two part blanks at one time.

[0014] In one embodiment of the present invention, in step S3, after correction, the circle where the inner arc features of the middle inner hole Φ50 of the integral turning auxiliary device and the inner arc features of the two end clamp bodies I are located is The coaxiality between them is ≤0.04, and the perpendicularity between the symmetry axis of the clamp body I and the right end face of the fixed plate is ≤0.02.

[0015] In one embodiment of the present invention, the inner hole provided on the clamping body II in the milling auxiliary device has a shape requirement that is concentric with the arc feature in the part blank being processed and clamped.

[0016] In one embodiment of the present invention, the milling auxiliary device is also provided with a 45-degree bevel feature, which is used for tool alignment and processing of the bevels on both sides of the part blank, and at the same time, the 45-degree bevel feature is used to complete the 45° bevels on both sides of the part and the top 16 Milling of wide slots.

[0017] The present invention also provides a turning auxiliary device, comprising a clamping body I, wherein a fixing plate and a clamping plate are sequentially arranged at the bottom end of the clamping body I, wherein the clamping body I and the fixing plate are connected by hexagon socket screws and pins, and the fixing plate and the clamping plate are connected by planes of the plate through positioning process holes and bolts;

[0018] After the part blank is clamped, the working surface on the clamp body I is assembled and connected through the provided pressing plate and screws II.

[0019] The present invention also provides a milling auxiliary device, including a clamp body II, the clamp body II is used to provide auxiliary tool setting, processing positioning and part clamping, and the part blank is arranged at one end of the clamp body II, and the two are assembled through a pressure plate II, wherein the pressure plate II is equipped with a hexagon socket head screw I, a pad and connected to the positioning hole of the clamp body II;

[0020] Then, the upper and lower end faces of the part blank in the height direction are provided with a lower clamping body and an upper clamping body for clamping, which are used to limit the movement of the Z axis and the rotational freedom of the X axis. The upper clamping body is also provided with a hexagon socket head screw II, which is assembled between the clamping body II.

[0021] The above technical solution of the present invention has the following advantages over the prior art: the turning and milling auxiliary processing method described in the present invention is designed with matching tooling based on the fragile characteristics of SBM050 material, and special-shaped arc parts that meet the size requirements are processed at the same time to ensure mass production, while the quality of parts is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Figure 1 is a schematic structural diagram of the turning auxiliary device of the present invention;

[0024] Figure 2 is a side view of the turning assisting device of the present invention;

[0025] Figure 3 is a schematic structural diagram of the milling auxiliary device of the present invention;

[0026] Figure 4 is a cross-sectional view of the milling auxiliary device of the present invention;

[0027] Figure 5 It is a partial structural schematic diagram of the milling auxiliary device of the present invention.

[0028] As shown in the figure, 11, hexagon socket screw, 12, pin, 13, clamping plate, 14, fixing plate, 15, clamp body I, 16, pressure plate, 17, screw II, 21, clamp body II, 22, pressure plate II, 23, hexagon socket cylindrical head screw I, 24, spacer, 25, lower clamp body, 26, upper clamp body, 27, hexagon socket cylindrical head screw II. DETAILED DESCRIPTION

[0029] This embodiment provides a turning and milling auxiliary processing method for processing special-shaped arc parts based on composite materials. The turning and milling auxiliary processing method is a two-process scheme for turning and milling special-shaped arc parts of marine underwater facilities using a turning auxiliary device and a milling auxiliary device, including the following steps:

[0030] Step S1: First, check whether the size of the part blank is qualified, and then use the turning auxiliary device to clamp the 8mm×20mm step feature structure on both sides of the lower part of the qualified part blank;

[0031] Step S2: The clamping part of the part blank is arranged in the clamp body Ⅰ15 in the turning auxiliary device, that is, the part blank is positioned through the positioning inner frame feature body provided in the clamp body Ⅰ15, and the two are then connected by the pressing plate 16 and the screw Ⅱ17 for extrusion assembly. Figure 1 and Figure 2 As shown;

[0032] Step S3: Before machining, the four-claw mechanism on the lathe clamps the clamping plate 13 in the turning auxiliary device, and then calibrates the inner hole Φ50 provided in the center of the entire turning auxiliary device and the inner end surface of the fixing plate 14;

[0033] Step S4: Then, the inner and outer arcs and the step arcs on both sides of the part blank are turned to the specified size features;

[0034] Step S5: After the inner and outer arcs and the step arcs on both sides are processed, the part blank is clamped again in the clamping body II 21 provided on the milling auxiliary device;

[0035] Step S6: The part blank is pressed and connected to the step end surface of the clamp body II 21 in the longitudinal direction through the pressing plate II 22. Figure 3 As shown;

[0036] Step S7: The part blank is provided with a lower clamp body 25 and an upper clamp body 26 in the height direction for matching assembly. Figure 5 As shown;

[0037] Step S8: Before processing, the tool on the milling machine sets the coordinate system through the inner hole on the clamp body II 21 in the milling auxiliary device, and then mills off the process positioning steps on both sides of the part blank to the required size, and finally obtains the required anisotropic arc parts.

[0038] Among them, the milling auxiliary device, specifically, after the inner and outer arcs and the step arcs on both sides are processed, we need to use the milling auxiliary device to complete the milling process. The device is divided into two parts. First, the first part consists of a clamp body Ⅱ21, a pressure plate Ⅱ22, a hexagon socket head screw Ⅰ23, and a pad 24. The inner hole on the clamp body is concentric with the arc of the part, which is used for clamping correction during processing, and the 45-degree bevel is used for tool alignment and processing of the bevels on both sides of the part. Through this auxiliary device, the 45° bevels on both sides of the part and the 16 at the top can be completed. The wide groove is milled; then the second part is composed of a lower clamp body 25, an upper clamp body 26, and a hexagon socket head screw II 27. The part is positioned and clamped on the auxiliary device through the upper and lower clamp bodies, and the process positioning steps on both sides are milled to a thickness of 36 mm.

[0039] Both ends of the turning auxiliary device are provided with clamping bodies Ⅰ15, so the turning auxiliary device clamps two parts blanks at a time; in step S3, after correction, the circle where the inner arc features of the middle inner hole Φ50 of the overall turning auxiliary device and the inner arc features of the clamping bodies Ⅰ15 at both ends are located is The coaxiality between them is ≤0.04, and the perpendicularity between the symmetry axis of the clamp body Ⅰ15 and the right end face of the fixed plate is ≤0.02.

[0040] Embodiment 2

[0041] This embodiment provides a turning auxiliary device, such as Figure 1 , Figure 2 As shown, it includes a clamp body Ⅰ15, and the bottom end of the clamp body Ⅰ15 is provided with a fixing plate 14 and a clamping plate 13 in sequence, wherein the clamp body Ⅰ15 and the fixing plate 14 are connected by a hexagon socket screw 11 and a pin 12, and the fixing plate 14 and the clamping plate 13 are connected by the plane of the plate through the positioning process holes and bolts;

[0042] After clamping the part blank, the working surface on the clamp body Ⅰ15 is assembled and connected through the provided pressing plate 16 and screws Ⅱ17.

[0043] Embodiment 3

[0044] This embodiment provides a milling auxiliary device, such as Figure 3 , Figure 4 , including a clamp body II 21, the clamp body II 21 is used to provide auxiliary tool setting, processing positioning and part clamping, and the part blank is arranged at one end of the clamp body II 21, and the two are assembled through a pressure plate II 22, wherein the pressure plate II 22 is equipped with a hexagon socket head screw I 23, a pad 24 and connected to the positioning hole of the clamp body II 21;

[0045] like Figure 5 As shown, the upper and lower end faces of the part blank in the height direction are then clamped with a lower clamping body 25 and an upper clamping body 26 to limit the freedom of movement of the Z axis and rotation of the X axis. The upper clamping body 26 is also provided with a hexagon socket head screw Ⅱ27, which is assembled between the clamping body Ⅱ21.

[0046] Therefore, milling parts without auxiliary devices requires strict requirements on tool sharpness and milling direction, which is not conducive to novice operation. The design of auxiliary devices and configuration technology makes the processing operation simple and threshold-free, suitable for processing by workers of all levels, and has strong adaptability.

[0047] Furthermore, the material SBM050 used in the parts has water absorption characteristics, so coolant is not allowed during processing, resulting in large tool wear. Therefore, free state processing is prone to chipping, and the fixture Ⅱ21 structure of the milling auxiliary device needs to wrap the parts to reduce chipping and ensure quality.

[0048] At the same time, it is easier to ensure quality and prevent corner chipping during turning than during milling, so the turning auxiliary device's clamping body Ⅰ15 is used first to solve most of the arc processing content and reduce the risks of milling.

[0049] Through the above embodiments, the turning and milling auxiliary processing method, which utilizes turning auxiliary devices and milling auxiliary devices, solves the processing requirements of special-shaped arc parts of SBM050 material in mass production, and has strong practicality and high processing efficiency in the process flow, while also ensuring the stable and reliable mass production quality of the parts.

[0050] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A turning and milling auxiliary processing method for processing special-shaped arc parts based on composite materials, wherein the turning and milling auxiliary processing method is a two-step processing scheme for turning and milling special-shaped arc parts of marine underwater facilities using a turning auxiliary device and a milling auxiliary device, characterized in that: The steps include: Step S1: First, check whether the size of the part blank is qualified, and then use the turning auxiliary device to clamp the 8mm×20mm step feature structure on both sides of the lower part of the qualified part blank; Step S2: The clamping part of the part blank is arranged in the clamp body I (15) in the turning auxiliary device, that is, the part blank passes through the positioning inner frame feature body provided in the clamp body I (15) for positioning, and the two are then connected by extrusion assembly through a pressing plate (16) and a screw II (17); Step S3: Before processing, the four-claw mechanism on the lathe clamps the clamping plate (13) in the turning auxiliary device, and then calibrates the inner hole Φ50 provided at the center of the entire turning auxiliary device and the inner end surface of the fixing plate (14); Step S4: Then, the inner and outer arcs and the step arcs on both sides of the part blank are turned to the specified size features; Step S5: After the inner and outer arcs and the step arcs on both sides are processed, the part blank is clamped again in the clamping body II (21) provided on the milling auxiliary device; Step S6: The part blank is pressed and connected to the step end surface of the clamp body II (21) in the longitudinal direction through the pressing plate II (22); Step S7: The part blank is provided with a lower clamping body (25) and an upper clamping body (26) in the height direction for matching assembly; Step S8: Before processing, the tool on the milling machine passes through the inner hole on the clamp body II (21) in the milling auxiliary device to set the tool coordinate system, and then mills away the process positioning steps on both sides of the part blank to the required size, and finally obtains the required anisotropic arc part.

2. The turning and milling auxiliary processing method according to claim 1, characterized in that: Both ends of the turning auxiliary device are provided with clamping bodies Ⅰ (15), so the turning auxiliary device can clamp two part blanks at one time.

3. The turning and milling auxiliary processing method according to claim 1, characterized in that: In step S3, after correction, the circle where the inner arc features of the middle inner hole Φ50 of the integral turning auxiliary device and the inner arc features of the two end clamp bodies Ⅰ (15) are located is The coaxiality between them is ≤0.04, and the perpendicularity between the symmetry axis of the clamp body Ⅰ (15) and the right end face of the fixing plate is ≤0.

02.

4. The turning and milling auxiliary processing method according to claim 1, characterized in that: The inner hole provided on the clamping body II (21) in the milling auxiliary device is concentric with the arc feature in the part blank to be processed and clamped.

5. The turning and milling auxiliary processing method according to claim 4, characterized in that: The milling auxiliary device is also provided with a 45-degree bevel feature, which is used for tool alignment and processing of the bevels on both sides of the part blank. At the same time, the 45-degree bevel feature is used to complete the 45° bevels on both sides of the part and the 16 at the top. Milling of wide slots.

6. A turning auxiliary device, characterized in that: The invention comprises a clamping body I (15), wherein a fixing plate (14) and a clamping plate (13) are arranged at the bottom end of the clamping body I (15) in sequence, wherein a hexagon socket screw (11) and a pin (12) are arranged between the clamping body I (15) and the fixing plate (14) to connect them, and at the same time, the fixing plate (14) and the clamping plate (13) are connected by the planes of the plates through positioning process holes and bolts; After clamping the part blank, the working surface on the clamp body I (15) is assembled and connected through the provided pressing plate (16) and screws II (17).

7. A milling auxiliary device, characterized in that: The invention comprises a clamp body II (21), wherein the clamp body II (21) is used to provide auxiliary tool setting, processing positioning and part clamping, and the part blank is arranged at one end of the clamp body II (21), and the two are assembled through a pressure plate II (22), wherein the pressure plate II (22) is equipped with a hexagon socket head screw I (23), a spacer (24) and is connected to the positioning hole of the clamp body II (21); Then, the upper and lower end surfaces of the part blank in the height direction are provided with a lower clamping body (25) and an upper clamping body (26) for clamping, which are used to limit the movement of the Z axis and the rotational freedom of the X axis. The upper clamping body (26) is also provided with a hexagon socket head screw II (27) and assembled with the clamping body II (21).

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