Cylinder section part machining device

Abstract

The utility model belongs to the technical field of aviation composite part manufacturing, and discloses a cylinder section part machining device. The cylinder section part machining device comprises a forming assembly, a bearing assembly and a demolding assembly. The forming assembly comprises a cylinder section mold and a connecting piece, the cylinder section mold is provided with a large end and a small end, and the connecting piece can be connected with the cylinder section mold and the fiber placement equipment, so that the cylinder section skin is formed on the cylinder section mold; the bearing assembly comprises a bearing part used for supporting the barrel section mold. The demolding assembly comprises a balance weight part, a transverse supporting part and a demolding part, the transverse supporting part is connected with the barrel section mold and the balance weight part, and the demolding part is used for demolding the barrel section skin. According to the barrel section part machining device, when the barrel section part machining device is stored, the large end and the small end of the barrel section mold are limited through the containing groove; in the demolding process, the demolding piece pulls the barrel section skin to be separated from the barrel section mold to the transverse supporting piece, in the demolding process of the barrel section skin, the transverse supporting piece supports the barrel section skin all the time, the barrel section skin is prevented from being damaged, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation composite part manufacturing technical field especially relates to a cylinder section part machining device. BACKGROUND

[0002] The cylinder section skin is the main force component of the aircraft fuselage structure, and its strength directly affects the overall strength of the aircraft fuselage. The fuselage structure of large passenger aircraft is usually assembled by segmented metal parts. However, metal parts need to be processed and assembled, which is complex and increases the labor burden of workers.

[0003] At present, carbon fiber resin composite materials have become the preferred material for various sections of aircraft due to their excellent mechanical properties. Using existing filament winding technology, carbon fiber resin composite materials can be laid and formed in a cylinder section mold. Before filament winding, the cylinder section mold needs to be cleaned. Due to the large overall size of the aircraft cylinder section skin and the use of overall forming process, the overall size of the cylinder section mold is also large, which causes certain difficulties in storage and cleaning. If the cleaning is not thorough, the cylinder section skin may be damaged during demolding, affecting normal use and increasing production costs. SUMMARY

[0004] The utility model aims at providing a cylinder section part machining device for forming a cylinder section skin and avoiding damage to the cylinder section skin during demolding to reduce production costs.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A cylinder section part machining device, comprising:

[0007] A forming assembly comprising a cylinder section mold and two connecting pieces. The cylinder section mold has a large end and a small end. The two connecting pieces can be fixedly connected to the large end and the small end respectively and can be connected to a filament winding device, so that the cylinder section skin is formed in the cylinder section mold.

[0008] A bearing assembly comprising a bearing piece. The bearing piece has a first accommodating groove for accommodating the large end and a second accommodating groove for accommodating the small end, so that the bearing piece supports the cylinder section mold, and the second accommodating groove can move between a supporting position and a avoiding position.

[0009] A demolding assembly comprising a counterweight, a horizontal support and a demolding piece. One end of the horizontal support is detachably connected to the cylinder section mold, and the other end is fixedly connected to the counterweight. The demolding piece can pull the cylinder section skin to separate it from the cylinder section mold and then to the horizontal support.

[0010] The above-mentioned cylindrical part processing device includes a demolding assembly that further includes two demolding rings. The two demolding rings can approach each other to clamp the cylindrical part skin, and the demolding component can be fixedly connected to the two demolding rings.

[0011] In the above-mentioned cylindrical part processing device, the demolding component includes a connecting rod and a driving component. One end of the connecting rod is threadedly connected to the demolding ring near the transverse support, and the other end is drivenly connected to the driving component. The driving component can drive the connecting rod to move along its axial direction.

[0012] The above-mentioned cylindrical part processing device includes a demolding component that further includes a traction steel wire and a traction wheel. One end of the traction steel wire is fixedly connected to the demolding ring near the transverse support, and the other end is connected to the traction wheel and can be wound around the traction wheel. The traction wheel is connected to the transverse support and is away from the cylindrical mold.

[0013] In the aforementioned cylindrical part processing device, the supporting member includes a first support member, a second support member, and a bottom support member. The first support member has a first receiving groove, and the second support member has a second receiving groove. Both the first support member and the second support member are connected to the bottom support member. The second support member is movable relative to the bottom support member between the supporting position and the abdication position.

[0014] The above-mentioned cylindrical part processing device includes a first locking member in the bearing assembly. The second support member is detachably connected to the bottom support member. When the second support member is in the support position, the first locking member fixes the second support member and the bottom support member.

[0015] The above-mentioned cylindrical part processing device includes a second locking member in which the bearing assembly further includes a second locking member, the second support member being slidably connected to the bottom support member and being able to slide in the vertical direction, and the second locking member being able to lock the second support member and the bottom support member.

[0016] In the aforementioned cylindrical section part processing device, the locking member includes a set screw, which is threadedly connected to the bottom support member and can abut against the second support member to lock the second support member and the bottom support member.

[0017] In the above-mentioned cylindrical part processing device, the first receiving groove is provided with a positioning notch, and the large end is provided with a positioning protrusion, which can be inserted into the positioning notch.

[0018] In the aforementioned cylindrical part processing device, the bottom end of the bearing member is fixedly provided with multiple support seats and multiple rollers, and the support seats can be raised and lowered so that the rollers contact or detach from the ground.

[0019] The beneficial effects of this utility model are:

[0020] The cylinder segment part machining device provided by the utility model, the cylinder segment mold is placed on the bearing piece, the first containing groove limits the large end of the cylinder segment mold, the second containing groove limits the large end of the cylinder segment mold, the forming surface of the cylinder segment mold is exposed outside, and the cylinder segment mold is convenient for cleaning. When forming, the second containing groove is adjusted to the supporting position, the connecting piece is fixedly connected with the filament laying equipment and the cylinder segment mold, the filament laying equipment lays the filament, and the cylinder segment skin is formed on the cylinder segment mold; when demolding, the connecting piece is disassembled, the second containing groove is adjusted to the avoiding position, the two ends of the transverse supporting piece are fixedly connected with the cylinder segment mold and the counterweight piece respectively, the demolding piece is fixedly connected with the cylinder segment skin, the demolding piece pulls the cylinder segment skin away from the cylinder segment mold and then to the transverse supporting piece, and in the demolding process of the cylinder segment skin, the transverse supporting piece supports the cylinder segment skin all the time, the cylinder segment skin is prevented from being damaged, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the cylinder segment part machining device provided by the utility model embodiment;

[0022] Figure 2 It is Figure 1 It is an enlarged view of A in the figure;

[0023] Figure 3 It is a structure schematic view of the bearing assembly provided by the utility model embodiment;

[0024] Figure 4 It is Figure 3 It is an enlarged view of B in the figure;

[0025] Figure 5 It is a schematic view of the cylinder segment mold and the connecting rod cooperation provided by the utility model embodiment;

[0026] Figure 6 It is Figure 3 It is an enlarged view of C in the figure.

[0027] In the figure:

[0028] 1, forming assembly; 11, cylinder segment mold; 111, large end; 112, small end; 113, positioning protrusion; 12, connecting piece;

[0029] 2, bearing assembly; 21, bearing piece; 211, first containing groove; 2111, positioning notch; 212, second containing groove; 213, first supporting piece; 214, second supporting piece; 215, bottom supporting piece; 22, first locking piece; 23, supporting seat; 24, roller;

[0030] 3, demolding assembly; 31, counterweight; 32, transverse support; 33, demolding piece; 331, connecting rod; 332, driving piece; 333, traction wire; 334, traction wheel; 3341, rotating part; 3342, fixed part; 34, demolding ring. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar parts or parts having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0032] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the description of the present application, unless explicitly defined and limited otherwise, the first feature "on" or "below" the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] The technical scheme of the present application is further illustrated below by combining the drawings and through specific embodiments.

[0035] The barrel segment part machining device provided by the present application is used for forming a barrel segment skin, and avoids damage to the barrel segment skin during demolding, thereby reducing production cost.

[0036] As Figures 1 to 6As shown, the barrel segment part machining device comprises a forming assembly 1, a bearing assembly 2 and a demolding assembly 3. The forming assembly 1 comprises a barrel segment die 11 and two connecting pieces 12, the barrel segment die 11 has a large end 111 and a small end 112, the two connecting pieces 12 can be fixedly connected to the large end 111 and the small end 112 respectively and can be connected with a filament laying device, so that the barrel segment skin is formed on the barrel segment die 11; the bearing assembly 2 comprises a bearing piece 21, the bearing piece 21 has a first accommodating groove 211 and a second accommodating groove 212, the first accommodating groove 211 is used for accommodating the large end 111, and the second accommodating groove 212 is used for accommodating the small end 112, so that the bearing piece 21 supports the barrel segment die 11, and the second accommodating groove 212 can move between a supporting position and a avoiding position; the demolding assembly 3 comprises a counterweight 31, a transverse support 32 and a demolding piece 33, one end of the transverse support 32 is detachably connected with the barrel segment die 11, the other end is fixedly connected with the counterweight 31, and the demolding piece 33 can pull the barrel segment skin to separate the barrel segment skin from the barrel segment die 11 and then to the transverse support 32.

[0037] The barrel segment part machining device provided by the utility model, the barrel segment die 11 is placed on the bearing piece 21, the first accommodating groove 211 limits the large end 111 of the barrel segment die 11, and the second accommodating groove 212 limits the small end 112 of the barrel segment die 11, so that the forming surface of the barrel segment die 11 is exposed outside, facilitating cleaning. During forming, the second accommodating groove 212 is adjusted to the supporting position, the connecting piece 12 is fixedly connected with the filament laying device and the barrel segment die 11, the filament laying device lays the filament to make the barrel segment skin formed on the barrel segment die 11; during demolding, the connecting piece 12 is detached, the second accommodating groove 212 is adjusted to the avoiding position, the two ends of the transverse support 32 are fixedly connected with the barrel segment die 11 and the counterweight 31 respectively, the demolding piece 33 is fixedly connected with the barrel segment skin, the demolding piece 33 pulls the barrel segment skin to separate the barrel segment skin from the barrel segment die 11 and then to the transverse support 32, and during the demolding process of the barrel segment skin, the transverse support 32 always supports the barrel segment skin, so that the barrel segment skin is prevented from being damaged and the production cost is reduced.

[0038] The forming assembly 1 is used for forming the barrel segment skin, during forming, the two connecting pieces 12 connect the barrel segment die 11 with the existing filament laying device, the filament laying device works, so that the barrel segment skin is formed on the barrel segment die 11, and the shape and size of the barrel segment die 11 need to be designed according to actual requirements. The connecting piece 12 can be circular or rectangular, and optionally, the connecting piece 12 is a circular disc, facilitating rotation. A plurality of threaded holes are formed in the connecting piece 12 and are used for penetrating the existing bolt, so as to be connected with the existing filament laying device.

[0039] The bearing assembly 2 is used for bearing the barrel segment die 11, and the bearing piece 21 can be a frame structure or a solid structure. Exemplarily, referring to Figure 1 and Figure 3, the carrier 21 is a frame structure, the carrier 21 comprises a first support 213, a second support 214 and a bottom support 215, the first support 213 is provided with a first accommodating groove 211, the second support 214 is provided with a second accommodating groove 212, the first support 213 and the second support 214 are connected to the bottom support 215, and the second support 214 can move between a supporting position and a avoiding position relative to the bottom support 215. The first support 213 supports the large end 111 of the cylinder segment mold 11, the second support 214 supports the small end 112 of the cylinder segment mold 11, the second support 214 can move between the supporting position and the avoiding position relative to the bottom support 215, when forming, the second support 214 is in the supporting position and cooperates with the first support 213 to support the cylinder segment mold 11, and when demolding, the second support 214 is in the avoiding position, so that the second support 214 avoids interference with the cylinder segment skin.

[0040] The shapes of the first support 213, the second support 214 and the bottom support 215 are not limited in the embodiment. Alternatively, the first support 213, the second support 214 and the bottom support 215 are frame structures, so that the weight is reduced. The top of the first support 213 is provided with the first accommodating groove 211, and the top of the second support 214 is provided with the second accommodating groove 212. The first accommodating groove 211 is used for accommodating the large end 111 of the cylinder segment mold 11, and the second accommodating groove 212 is used for accommodating the small end 112 of the cylinder segment mold 11. See Figure 1 and Figure 3 The first accommodating groove 211 and the second accommodating groove 212 are arc-shaped grooves, so that the contact area of the large end 111 of the cylinder segment mold 11 and the first accommodating groove 211 is increased, and the contact area of the small end 112 of the cylinder segment mold 11 and the second accommodating groove 212 is increased, thereby reducing stress concentration.

[0041] In other embodiments, the first accommodating groove 211 and the second accommodating groove 212 can be V-shaped grooves, so that the processing is facilitated.

[0042] The second support 214 can move between the supporting position and the avoiding position relative to the bottom support 215, and can be detachably connected to the bottom support 215, or can be slidingly connected to the bottom support 215, or can be rotatably connected to the bottom support 215.

[0043] In the embodiment, the bearing assembly 2 further comprises a first locking member 22, the second support member 214 is detachably connected with the bottom support member 215, when the second support member 214 is in the supporting position, the first locking member 22 fixes the second support member 214 and the bottom support member 215, and can support the small end 112 of the barrel segment mold 11, when the demolding operation is performed, the first locking member 22 is detached, and the second support member 214 and the bottom support member 215 are separated, so that the second support member 214 and the barrel segment skin do not interfere with each other during demolding. The first locking member 22 can be a bolt, which is convenient to connect.

[0044] In other embodiments, the bearing assembly 2 further comprises a second locking member, the second support member 214 is slidably connected with the bottom support member 215 and can slide in the vertical direction, and the second locking member can lock the second support member 214 and the bottom support member 215. During forming, the second locking member can lock the second support member 214 and the bottom support member 215 so that the second support member 214 is in the supporting position, thereby facilitating the support of the small end 112 of the barrel segment mold 11, and during demolding, the second locking member is loosened, and the second support member 214 is moved to the avoiding position, the second locking member can lock the second support member 214 and the bottom support member 215 so that the second support member 214 is in the avoiding position, thereby avoiding interference with the barrel segment skin. At the same time, the second locking member locks the second support member 214 and the bottom support member 215, which can also prevent the second support member 214 from being lost, thereby improving work efficiency.

[0045] The second locking member can be a bolt or a jack, and exemplarily, the second locking member comprises a jack, the jack is threadedly connected with the bottom support member 215 and can abut against the second support member 214 to lock the second support member 214 and the bottom support member 215. The jack has a simple structure and is convenient to install.

[0046] Specifically, the second locking member further comprises an operating handle, the operating handle is fixedly connected to one end of the jack away from the bottom support member 215, thereby facilitating the rotation of the jack. Alternatively, two jacks are threadedly connected to two ends of the bottom support member 215 respectively, the second support member 214 is arranged in the bottom support member 215, and the rotation of the jacks makes the two jacks approach each other to clamp the second support member 214, so that the two jacks can improve the stability of the second support member 214 after clamping.

[0047] In use, the second support member 214 is vertically moved upward from the avoiding position to the supporting position, the two jacks are tightened to clamp the second support member 214 in the supporting position, the second support member 214 cooperates with the first support member 213 to support the barrel segment mold 11, before the barrel segment skin demolding operation is performed, the two jacks are loosened, the second support member 214 is vertically moved downward from the supporting position to the avoiding position, and the two jacks are tightened to clamp the second support member 214 in the avoiding position, thereby avoiding interference with the barrel segment skin.

[0048] In order to facilitate the movement of the bearing assembly 2, see Figure 3 and Figure 4 The bottom end of the bearing 21 is fixedly provided with a plurality of support seats 23 and a plurality of rollers 24, the support seats 23 can be lifted to make the rollers 24 contact or separate from the ground. Facilitate the support of the bearing 21 or move the bearing 21.

[0049] The number of support seats 23 and rollers 24 is designed according to actual needs. When the bearing 21 bears a small load, the number of support seats 23 and rollers 24 can be set to be small, for example, four support seats 23 and four rollers 24, to reduce the cost; when the bearing 21 bears a large load, the number of support seats 23 and rollers 24 can be set to be more, for example, ten support seats 23 and eight rollers 24, to improve the support stability.

[0050] The stripping assembly 3 is used for stripping the cylinder segment skin, and the stripping member 33 can be directly connected with the cylinder segment skin or indirectly connected with the cylinder segment skin. In the embodiment, see Figure 1 and Figure 5 The stripping assembly 3 further comprises two stripping rings 34, the two stripping rings 34 can be close to each other to clamp the cylinder segment skin, the stripping member 33 can be fixedly connected with the two stripping rings 34, and after the two stripping rings 34 clamp the cylinder segment skin, the stripping member 33 exerts force on the stripping ring 34 close to the transverse support 32 to make the cylinder segment skin separate from the cylinder segment die 11.

[0051] It should be noted that the cylinder segment skin formed on the cylinder segment die 11 is plastic before solidification, so the two stripping rings 34 can be sleeved on the cylinder segment skin when the cylinder segment skin is not solidified. Since the inner diameter of the stripping ring 34 is larger than the outer diameter of the cylinder segment skin, the stripping ring 34 will not damage the cylinder segment skin. After the cylinder segment skin is processed to be flanged, after the cylinder segment skin is solidified, the two stripping rings 34 on both sides of the flange are close to each other along the length direction of the cylinder segment die 11, and are fixed by the existing bolts, so that the flange of the cylinder segment skin is clamped between the two stripping rings 34.

[0052] The stripping ring 34 is provided with a fixed hole, the positions, numbers and sizes of the fixed holes on the two stripping rings 34 correspond to each other, and the fixed holes can be aligned to fix the two stripping rings 34 by using the existing bolt and nut mechanism. Exemplarily, the fixed holes are arranged at intervals around the axis of the stripping ring 34, and the fixed holes can be arranged in four, six or eight, to reduce stress concentration.

[0053] In order to avoid damaging the barrel skin when demolding, in order to facilitate description, the demolding ring 34 close to the transverse support 32 is the first demolding ring, and the demolding ring 34 far from the transverse support 32 is the second demolding ring. A larger force is applied to the first demolding ring first, and since the first demolding ring and the first demolding ring clamp the barrel skin, the two demolding rings 34 drive the barrel skin to separate from the barrel mold 11. Then a smaller force is applied to the first demolding ring, and the two demolding rings 34 drive the barrel skin to slowly move to the transverse support 32.

[0054] In this embodiment, the demolding member 33 includes a connecting rod 331 and a driving member 332. One end of the connecting rod 331 is threadedly connected with the demolding ring 34 close to the transverse support 32, and the other end is in transmission connection with the driving member 332. The driving member 332 can drive the connecting rod 331 to move along its axis. The threaded connection is convenient to disassemble and firmly connected. The driving member 332 drives the connecting rod 331 to move along its axis, drives the two demolding rings 34 to move along the axis of the connecting rod 331, and then pulls the barrel skin to separate it from the barrel mold 11. Before the barrel skin is formed, a layer of existing demolding agent can be brushed on the outer surface of the barrel mold 11 to facilitate demolding.

[0055] The connecting rod 331 can be provided with two, three, four or more. Optionally, referring to Figure 6 The connecting rod 331 is provided with four, and the four connecting rods 331 are distributed at intervals of 90° around the axis direction of the demolding ring 34, which can not only limit the rotation of the demolding ring 34 around its axis, but also ensure that the demolding ring 34 is uniformly stressed, thereby improving the demolding efficiency. The demolding ring 34 is provided with a threaded connection hole corresponding to the connecting rod 331 for threadedly connecting the connecting rod 331.

[0056] The driving member 332 can be a hydraulic cylinder or a pneumatic cylinder. Optionally, the driving member 332 is a hydraulic cylinder with a large output torque, which is convenient for demolding. The piston rod of the hydraulic cylinder is connected with the end of the connecting rod 331 away from the demolding ring 34 through an existing connector. The connection is convenient and has high connection strength, which is convenient for the driving member 332 to drive the connecting rod 331 to move along its axis direction, and then pull the barrel skin to separate it from the barrel mold 11.

[0057] In this embodiment, the demolding member 33 further includes a traction wire 333 and a traction wheel 334. One end of the traction wire 333 is fixedly connected with the demolding ring 34 close to the transverse support 32, and the other end is connected to the traction wheel 334 and can be wound around the traction wheel 334. The traction wheel 334 is connected to the transverse support 32 and away from the barrel mold 11. Rotating the traction wheel 334 retracts the traction wire 333, and the traction wire 333 pulls the barrel skin to slowly move along the axis direction of the transverse support 32, thereby avoiding damaging the barrel skin.

[0058] Specifically, referring toFigure 1 and Figure 2 The traction wheel 334 comprises a rotating part 3341 and a fixed part 3342, the fixed part 3342 is below the rotating part 3341, the fixed part 3342 is fixedly connected with the transverse support 32, the rotating part 3341 is connected with the traction wire 333, and the rotating part 3341 can wind the traction wire 333 when rotating, thereby saving space.

[0059] The transverse support 32 can be an existing beam, which is convenient to obtain. The length of the transverse support 32 is greater than the length of the barrel segment skin, so that the barrel segment skin can be placed on the transverse support 32. One end of the transverse support 32 is connected with the barrel segment mold 11 through an existing bolt, which is convenient to disassemble, and the other end is fixedly connected with the counterweight 31. The counterweight 31 can be a box, and a counterweight block is placed in the box, which is used for balancing the vertical load of the barrel segment skin on the transverse support 32, so as to avoid the transverse support 32 from falling down.

[0060] When demolding, the driving part 332 is started, the driving part 332 drives the connecting rod 331 to move along the axis direction of the connecting rod 331, thereby pulling the barrel segment skin to separate from the barrel segment mold 11. Then, the connecting rod 331 is disassembled from the first demolding ring, the traction wire 333 is installed on the first demolding ring, the traction wheel 334 is rotated, one end of the traction wire 333 is wound on the traction wheel 334, and the other end pulls the barrel segment skin to move along the axis direction of the transverse support 32 to the transverse support 32. The force applied to the first demolding ring by the traction wire 333 is relatively soft, the speed of pulling the barrel segment skin to move is relatively slow, and the damage to the barrel segment skin can be reduced.

[0061] In the embodiment, referring to Figure 3 and Figure 5 The first accommodating groove 211 is provided with a positioning gap 2111, and the large end 111 is provided with a positioning protrusion 113, the positioning protrusion 113 can be inserted into the positioning gap 2111, and the rough positioning is realized.

[0062] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation to the embodiments of the utility model. For the ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A barrel segment part machining apparatus characterized by comprising: The application relates to a forming assembly (1), a bearing assembly (2) and a demolding assembly (3). The forming assembly (1) comprises a barrel segment mold (11) and two connecting members (12), the barrel segment mold (11) has a large end (111) and a small end (112), the two connecting members (12) are respectively fixedly connected to the large end (111) and the small end (112) and can be connected to a filament laying device, so that a barrel segment skin is formed on the barrel segment mold (11). The bearing assembly (2) comprises a bearing member (21), the bearing member (21) has a first accommodating groove (211) and a second accommodating groove (212), the first accommodating groove (211) is used for accommodating the large end (111), the second accommodating groove (212) is used for accommodating the small end (112), so that the bearing member (21) supports the barrel segment mold (11), and the second accommodating groove (212) can move between a supporting position and a avoiding position. The demolding assembly (3) comprises a counterweight member (31), a transverse support member (32) and a demolding member (33), one end of the transverse support member (32) is detachably connected to the barrel segment mold (11), the other end is fixedly connected to the counterweight member (31), and the demolding member (33) can pull the barrel segment skin to separate the barrel segment skin from the barrel segment mold (11) and then move to the transverse support member (32).

2. The barrel segment part machining apparatus according to claim 1, characterized by The demolding assembly (3) further comprises two demolding rings (34), the two demolding rings (34) can be close to each other to clamp the barrel segment skin, and the demolding member (33) can be fixedly connected to the two demolding rings (34).

3. The barrel segment part machining apparatus according to claim 2, characterized by The demolding member (33) comprises a connecting rod (331) and a driving member (332), one end of the connecting rod (331) is threadedly connected to the demolding ring (34) close to the transverse support member (32), the other end is in transmission connection with the driving member (332), and the driving member (332) can drive the connecting rod (331) to move along the axial direction.

4. The barrel segment part machining apparatus according to claim 2, characterized by The demolding member (33) further comprises a traction steel wire (333) and a traction wheel (334), one end of the traction steel wire (333) is fixedly connected to the demolding ring (34) close to the transverse support member (32), the other end is connected to the traction wheel (334) and can be wound on the traction wheel (334), the traction wheel (334) is connected to the transverse support member (32) and is away from the barrel segment mold (11).

5. The barrel segment part machining apparatus according to claim 1, characterized by The bearing member (21) comprises a first support member (213), a second support member (214) and a bottom support member (215), the first support member (213) is provided with the first accommodating groove (211), the second support member (214) is provided with the second accommodating groove (212), the first support member (213) and the second support member (214) are connected to the bottom support member (215), and the second support member (214) can move relative to the bottom support member (215) between the supporting position and the avoiding position.

6. The barrel segment part machining apparatus according to claim 5, characterized by The bearing assembly (2) further comprises a first locking member (22), the second support member (214) is detachably connected with the bottom support member (215), and the first locking member (22) fixes the second support member (214) and the bottom support member (215) when the second support member (214) is in the support position.

7. The barrel segment part machining apparatus according to claim 5, characterized by The bearing assembly (2) further comprises a second locking member, the second support member (214) is slidably connected with the bottom support member (215) and can slide in the vertical direction, and the second locking member can lock the second support member (214) and the bottom support member (215).

8. The barrel segment part machining apparatus according to claim 7, characterized by The second locking member comprises a jackscrew, the jackscrew is threadedly connected with the bottom support member (215) and can abut against the second support member (214) to lock the second support member (214) and the bottom support member (215).

9. The barrel segment part machining apparatus according to claim 1, characterized by The first accommodating groove (211) is provided with a positioning notch (2111), and the large end (111) is provided with a positioning protrusion (113) which can be inserted into the positioning notch (2111).

10. The barrel segment part machining apparatus according to any one of claims 1 to 9, characterized by The bottom end of the bearing member (21) is fixedly provided with a plurality of support seats (23) and a plurality of rollers (24), the support seats (23) can be lifted to make the rollers (24) contact or be separated from the ground.

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