A milling device for finishing thin-walled cylindrical parts

Abstract

The present invention discloses a milling device for fine processing of thin-walled cylindrical parts. The present invention relates to the field of parts fine processing technology, and includes an anti-deformation mechanism, which is arranged at a lower position inside the side surface of the device body and is used to apply pressure to the surface of the workpiece. The pressure supports the outer side surface of the workpiece. The anti-deformation mechanism drives the workpiece to move and cooperates with the milling component to mill the inner side surface of the workpiece. The milling device for fine processing of thin-walled cylindrical parts has a uniform component filled with fine gravel. The uniform component covers the outer side surface of the workpiece. The screw rotates to cause the slide to slide on the inner side surface of the frame. The slide is driven to the middle position of the inner side of the frame. At this time, the uniform component is located directly below the milling component. The milling component cooperates with the movement of the slide to mill the inner side surface of the workpiece, solving the problem that cylindrical thin-walled parts with poor rigidity are easily deformed during milling.

Description

Technical Field

[0001] The invention relates to the technical field of parts finishing, in particular to a milling device for finishing thin-walled cylindrical parts. Background Art

[0002] Cylindrical thin-walled parts, due to their weak rigidity, are affected by roundness deformation when machining meshes. Part alignment is complex and it is difficult to ensure mesh thickness, which greatly affects the processing efficiency of the parts. At present, the main methods are to optimize the process plan, adjust the milling strategy and parameters, and use tooling to constrain the parts within the acceptable roundness range for processing. The commonly used tooling currently uses uniformly distributed arc top blocks. From the actual effect, it has certain effects, but the trial cutting-compensation processing method still needs to be adopted in the milling mesh process, and the processing efficiency is relatively low. There are two traditional methods for cylinder milling, which require a high level of operator skills. One is to weld the cylinder to other components to improve the overall rigidity and then perform milling. However, this method has limited improvement in rigidity, and the cylinder's own form and position tolerances such as roundness and straightness are still large. During milling, various problems may occur, such as tool letdown, uneven wall thickness of the weight-reducing belt, and overweight of the cylinder. Another method is to replace the cylinder in the thickened belt area with a milled forging and add two welds to assemble it into a cylinder. The disadvantage of this method is that the material and labor costs are high, and the production cycle is long.

[0003] Existing milling devices for finishing thin-walled cylindrical parts have structural design defects, resulting in poor rigidity of cylindrical thin-walled parts and easy deformation during milling, as well as residual waste chips generated during milling and easy splashing, causing wear on the inner wall of the parts. Summary of the Invention

[0004] The present invention provides a milling device for fine machining of thin-walled cylindrical parts, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a milling device for fine machining of thin-walled cylindrical parts, comprising

[0006] A water tank table, wherein the top of the water tank table is fixedly connected to a device body, a sliding door is slidably connected to the surface of the device body, and a milling component is fixedly connected to the upper position of the surface of the device body;

[0007] The anti-splash mechanism is arranged at a lower position of the inner side surface of the device body, the surface of the anti-splash mechanism clamps the workpiece, the inner side surface of the workpiece is close to the inner side surface of the water tank table, the output end of the milling component mills the inner side surface of the workpiece, and the chips fall through the inner side surface of the workpiece into the interior of the water tank table;

[0008] The anti-deformation mechanism is arranged at the lower position of the inner side of the device body and is used to apply pressure to the surface of the workpiece. The pressure supports the outer side of the workpiece. The anti-deformation mechanism drives the workpiece to move and cooperates with the milling component to mill the inner side of the workpiece; it includes a feeding component, and the surface of the feeding component is fixedly connected to the uniform component. The feeding component transports sand to the interior of the uniform component, and the inner side of the uniform component is in direct contact with the outer side of the workpiece.

[0009] Preferably, a frame is fixedly connected to the lower position of the inner side of the device body, the inner side of the frame is rotatably connected to a screw, the surface of the screw is connected to a slide through a thread, the top of the uniform component is fixedly connected to a rotating component, the workpiece is a thin-walled cylindrical part, the workpiece enters the interior of the uniform component from top to bottom, the anti-sputtering mechanism clamps and centers the lower position of the inner side of the workpiece, and the feeding component transports dry sand into the interior of the uniform component.

[0010] Preferably, the feeding assembly includes a motor, one side of the motor is fixedly connected to the surface of the slide, and the side of the motor surface away from the slide is fixedly connected to a component shell.

[0011] Preferably, a sand inlet end is provided at the top of the component shell, and a spiral rod is fixedly connected to the output end of the motor. The surface of the spiral rod is in close contact with the inner side surface of the component shell. The slide supports the motor, and the slide slides on the inner side surface of the frame to adjust the position of the workpiece. The sand inlet end transports dry and fine sand particles to the interior of the component shell.

[0012] Preferably, the uniform component includes a rigid wall, the middle portion of the rigid wall surface is fixedly connected to a side of the component shell away from the motor, and the top and bottom of the rigid wall are fixedly connected with connecting plates.

[0013] Preferably, inclined plates are fixedly connected to the upper and lower positions of the inner side surface of the rigid wall, and a rubber tube is fixedly connected to the middle position of the opposite surfaces of the two inclined plates, and the rubber tube is made of rubber material.

[0014] Preferably, the rotating assembly includes a shell, the bottom of the shell is fixedly connected to the top of the connecting plate, the surface of the shell is rotatably connected to a worm, and the worm is driven to rotate by an external device.

[0015] Preferably, the inner side surface of the shell is rotatably connected to a worm gear, the top of the worm gear is fixedly connected to an air pressure gun, the top of the shell is fixedly connected to a limit ring, the shell is arranged above the rigid wall, and the inclined sheet creates a certain gap between the rubber tube and the rigid wall, dry sand particles are transported into the gap, and the rubber tube is squeezed and expanded.

[0016] Preferably, the anti-sputtering mechanism includes a limiting plate, the surface of the limiting plate is fixedly connected to a lower position of the inner side surface of the device body, and the inner side surface of the limiting plate is fixedly connected to a fixing ring.

[0017] Preferably, the inner side surface of the fixed ring is fixedly connected to the first electric cylinder and the second electric cylinder respectively, and the surfaces of the first electric cylinder and the second electric cylinder are fixedly connected to the clamping assembly. The workpiece is placed on the position of the clamping assembly from top to bottom, and oil pressure is transmitted inside the clamping assembly. The oil pressure causes the lower position of the inner side surface of the workpiece to be centered and clamped, and the limit plate supports the fixed ring.

[0018] Preferably, the clamping assembly includes a component wall, the lower position of the component wall surface is fixedly connected to the output ends of the first electric cylinder and the second electric cylinder respectively, and the upper position of the component wall surface is fixedly connected to a cylinder body, and the hydraulic pipe transmits oil pressure to the interior of the component wall, and the interior of the cylinder body is connected to the interior of the component wall. There are several cylinder bodies, and the oil pressure pushes the sliding rod to move radially outward. Several cylinder bodies are connected to each other, so that multiple push plates can provide centering support for the workpiece.

[0019] Preferably, the inner side surface of the cylinder body is slidably connected to a sliding rod, the end of the sliding rod away from the cylinder body is fixedly connected to a push plate, and the bottom of the component wall is fixedly connected to a hydraulic pipe.

[0020] The present invention provides a milling device for fine machining of thin-walled cylindrical parts. It has the following beneficial effects:

[0021] 1. The milling device for finishing thin-walled cylindrical parts uses a uniform component filled with fine gravel to cover the outer side of the workpiece. The screw rotates to make the slide slide on the inner side of the frame, and the slide is driven to the middle position of the inner side of the frame. At this time, the uniform component is directly below the milling component. The milling component cooperates with the movement of the slide to mill the inner side of the workpiece, solving the problem of cylindrical thin-walled parts with poor rigidity and easy deformation during milling.

[0022] 2. The milling device for finishing thin-walled cylindrical parts uses a motor to drive the screw rod to rotate. The rotation of the screw rod pushes the sand grains into the inside of the rigid wall. The rigid wall is made of metal material. As the sand grains inside the rigid wall gradually increase, the rubber tube expands and squeezes the outer side of the workpiece. The slide moves to move the workpiece. When the outer side of the workpiece is supported by the rubber tube, the workpiece can be moved to facilitate the milling component to process the inner side of the workpiece.

[0023] 3. In the milling device for finishing thin-walled cylindrical parts, the outer side of the workpiece is squeezed and clamped by the expanded rubber tube, and the inner side of the workpiece is milled by the milling component. The air flow ejected from the air pressure gun obliquely impacts the inner side of the workpiece, and the worm external device drives it to rotate. The surface of the worm engages with the surface of the worm wheel, and the limit ring limits the rotation of the worm wheel, so that the worm wheel drives the air pressure gun to rotate, preventing the chips on the inner side of the workpiece from being wrapped around the surface of the milling component and causing scratches on the workpiece.

[0024] 4. In the milling device for finishing thin-walled cylindrical parts, the first electric cylinder and the second electric cylinder are arranged opposite to each other. At the same time, the slide slides on the inner side of the frame to adjust the position between the workpiece and the milling component. The rotating component is arranged above the uniform component. The rotating component impacts the chips downward. Due to the separation of the fixed ring, the chips inside the workpiece are impacted to the inside of the water tank for collection, which solves the problem that the residual waste chips generated by milling are easily splashed and cause wear on the inner wall of the part.

[0025] 5. In the milling device for finishing thin-walled cylindrical parts, the interior of the rigid wall is filled with dry fine sand particles, which squeeze the rubber tube. The cylindrical rigid wall supports the flow of sand particles, so that the cylindrical workpiece is firmly supported and limited. The lower position of the inner side of the workpiece is centered by the push plate, and then clamped by the rubber tube, which can effectively avoid milling errors caused by eccentricity during processing of the inner side of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A perspective view of the entire milling device for fine machining of thin-walled cylindrical parts according to the present invention;

[0027] Figure 2 A three-dimensional view of the interior of a milling device for fine machining of thin-walled cylindrical parts according to the present invention;

[0028] Figure 3 Schematic diagram of the structure of the anti-sputtering mechanism of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the clamping assembly of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the anti-deformation mechanism of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the material feeding assembly of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the uniform component of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the rotating assembly of the present invention.

[0034] In the figure: 1. water tank table; 2. device body; 3. sliding door; 4. milling component; 5. anti-splashing mechanism; 51. limit plate; 52. fixing ring; 53. first electric cylinder; 54. second electric cylinder; 55. clamping assembly; 551. assembly wall; 552. cylinder body; 553. sliding rod; 554. push plate; 555. hydraulic pipe; 6. anti-deformation mechanism; 61. frame; 62. screw; 63. slide; 64. feeding assembly; 641. motor; 642. assembly shell; 643. sand feeding end; 644. screw rod; 65. uniform assembly; 651. rigid wall; 652. connecting plate; 653. inclined plate; 654. rubber tube; 66. rotating assembly; 661. housing; 662. limit ring; 663. worm gear; 664. air pressure gun; 7. workpiece. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figure 1 、 Figure 2 、 Figure 5 As shown, the present invention provides a technical solution: a milling device for finishing thin-walled cylindrical parts, comprising

[0037] A sink table 1, the top of which is fixedly connected to a device body 2, a sliding door 3 is slidably connected to the surface of the device body 2, and a milling component 4 is fixedly connected to the upper position of the surface of the device body 2;

[0038] The anti-splash mechanism 5 is provided below the inner side of the device body 2. The surface of the anti-splash mechanism 5 clamps the workpiece 7. The inner side of the workpiece 7 is close to the inner side of the water tank table 1. The output end of the milling component 4 mills the inner side of the workpiece 7. The chips fall through the inner side of the workpiece 7 into the interior of the water tank table 1.

[0039] The anti-deformation mechanism 6 is arranged below the inner side of the device body 2 and is used to apply pressure to the surface of the workpiece 7. The pressure supports the outer side of the workpiece 7. The anti-deformation mechanism 6 drives the workpiece 7 to move and cooperates with the milling component 4 to mill the inner side of the workpiece 7. It includes a feeding component 64. The surface of the feeding component 64 is fixedly connected to the uniform component 65. The feeding component 64 transports sand to the interior of the uniform component 65. The inner side of the uniform component 65 is in direct contact with the outer side of the workpiece 7.

[0040] A frame 61 is fixedly connected to the lower position of the inner side of the device body 2, a screw rod 62 is rotatably connected to the inner side of the frame 61, a slide 63 is connected to the surface of the screw rod 62 through a thread, and a rotating component 66 is fixedly connected to the top of the uniform component 65.

[0041] During use, the workpiece 7 is a thin-walled cylindrical part. The workpiece 7 enters the interior of the uniform component 65 from top to bottom. The anti-sputtering mechanism 5 clamps and centers the lower position of the inner side of the workpiece 7. The feeding component 64 transports dry sand into the interior of the uniform component 65. Fine gravel fills the uniform component 65. The uniform component 65 covers the outer side of the workpiece 7. The screw 62 rotates to make the slide 63 slide on the inner side of the frame 61. The slide 63 is driven to the middle position of the inner side of the frame 61. At this time, the uniform component 65 is directly below the milling component 4. The milling component 4 cooperates with the movement of the slide 63 to make the inner side of the workpiece 7 be milled, which solves the problem that cylindrical thin-walled parts have poor rigidity and are easily deformed during milling.

[0042] like Figure 5 、 Figure 6 、 Figure 7 As shown, the feeding component 64 includes a motor 641, one side of the motor 641 is fixedly connected to the surface of the slide 63, the side of the motor 641 surface away from the slide 63 is fixedly connected to the component shell 642, the top of the component shell 642 is provided with a sand feeding end 643, the output end of the motor 641 is fixedly connected to the screw rod 644, the surface of the screw rod 644 is in close contact with the inner side surface of the component shell 642, the uniform component 65 includes a rigid wall 651, the middle position of the surface of the rigid wall 651 is fixedly connected to the side of the component shell 642 away from the motor 641, the top and bottom of the rigid wall 651 are fixedly connected to the connecting plate 652, the upper and lower positions of the inner side surface of the rigid wall 651 are fixedly connected to the inclined piece 653, the middle position of the opposite surfaces of the two inclined pieces 653 is fixedly connected to the rubber tube 654, and the rubber tube 654 is made of rubber material.

[0043] During use, the slide 63 supports the motor 641, and the slide 63 slides on the inner side of the frame 61 to adjust the position of the workpiece 7. The sand inlet end 643 transports dry and fine sand particles to the inside of the component shell 642. The motor 641 drives the screw rod 644 to rotate, and the rotation of the screw rod 644 causes the sand particles to be pushed into the inside of the rigid wall 651. The rigid wall 651 is made of metal material. As the sand particles inside the rigid wall 651 gradually increase, the rubber tube 654 expands so that the outer side of the workpiece 7 is squeezed. The slide moves to move the workpiece 7. When the outer side of the workpiece 7 is supported by the rubber tube 654, the workpiece 7 can move its position to facilitate the milling component 4 to process the inner side of the workpiece 7.

[0044] like Figure 5 、 Figure 7 、 Figure 8 As shown, the middle position of the surface of the rigid wall 651 is fixedly connected to the side of the component shell 642 away from the motor 641, the top and bottom of the rigid wall 651 are fixedly connected with a connecting plate 652, the upper and lower positions of the inner side of the rigid wall 651 are fixedly connected with an inclined piece 653, and the middle position of the opposite surfaces of the two inclined pieces 653 is fixedly connected with a rubber tube 654, and the rubber tube 654 is made of rubber material. The rotating component 66 includes a shell 661, the bottom of the shell 661 is fixedly connected to the top of the connecting plate 652, the surface of the shell 661 is rotatably connected to a worm, and the worm is driven to rotate by an external device, the inner side of the shell 661 is rotatably connected to a worm gear 663, the top of the worm gear 663 is fixedly connected to an air pressure gun 664, and the top of the shell 661 is fixedly connected to a limiting ring 662.

[0045] When in use, the shell 661 is set above the rigid wall 651, and the inclined piece 653 creates a certain gap between the rubber tube 654 and the rigid wall 651. Dry sand is transported into the gap, and the rubber tube 654 is squeezed and expanded. The outer side surface of the workpiece 7 is squeezed and clamped by the expanded rubber tube 654, and the inner side surface of the workpiece 7 is milled by the milling component 4. The air flow ejected by the air pressure gun 664 is tilted to impact the inner side surface position of the workpiece 7, and the worm external device drives it to rotate. The surface of the worm is engaged with the surface of the worm wheel 663, and the limiting ring 662 limits the rotation of the worm wheel 663, so that the worm wheel 663 drives the air pressure gun 664 to rotate, thereby preventing the chips on the inner side surface of the workpiece 7 from winding around the surface of the milling component 4 and causing scratches on the workpiece 7.

[0046] like Figure 3 、 Figure 5 As shown, the anti-sputtering mechanism 5 includes a limit plate 51, the surface of the limit plate 51 is fixedly connected to the lower position of the inner side surface of the device body 2, the inner side surface of the limit plate 51 is fixedly connected to a fixing ring 52, the inner side surfaces of the fixing ring 52 are respectively fixedly connected to a first electric cylinder 53 and a second electric cylinder 54, the surfaces of the first electric cylinder 53 and the second electric cylinder 54 are fixedly connected to a clamping assembly 55, and the surface of the feeding assembly 64 is fixedly connected to a uniform component 65, which transports sand to the interior of the uniform component 65, and the inner side surface of the uniform component 65 is in direct contact with the outer side surface of the workpiece 7;

[0047] A frame 61 is fixedly connected to the lower position of the inner side of the device body 2, a screw rod 62 is rotatably connected to the inner side of the frame 61, a slide 63 is connected to the surface of the screw rod 62 through a thread, and a rotating component 66 is fixedly connected to the top of the uniform component 65.

[0048] During use, the workpiece 7 is placed from top to bottom at the position of the clamping assembly 55, and oil pressure is delivered inside the clamping assembly 55. The oil pressure causes the lower position of the inner side of the workpiece 7 to be centered and clamped. The limit plate 51 supports the fixed ring 52, and the first electric cylinder 53 and the second electric cylinder 54 are arranged opposite to each other. At the same time, the slide 63 slides on the inner side of the frame 61 to adjust the position between the workpiece 7 and the milling component 4. The rotating assembly 66 is arranged above the uniform assembly 65. The rotating assembly 66 impacts the chips downward. Due to the separation of the fixed ring 52, the chips inside the workpiece 7 are impacted to the inside of the water tank table 1 for collection, which solves the problem that the residual waste chips generated by milling are easily splashed and cause wear on the inner wall of the part.

[0049] like Figure 4 、 Figure 7 As shown, the clamping assembly 55 includes an assembly wall 551, and the lower position of the surface of the assembly wall 551 is fixedly connected to the output ends of the first electric cylinder 53 and the second electric cylinder 54 respectively; the upper position of the surface of the assembly wall 551 is fixedly connected to the cylinder body 552, and the inner side surface of the cylinder body 552 is slidably connected to the sliding rod 553, and the end of the sliding rod 553 away from the cylinder body 552 is fixedly connected to the push plate 554, and the bottom of the assembly wall 551 is fixedly connected to the hydraulic pipe 555, and the middle position of the surface of the rigid wall 651 is fixedly connected to the side of the assembly shell 642 away from the motor 641, and the top and bottom of the rigid wall 651 are fixedly connected to the connecting plate 652, and the upper and lower positions of the inner side surface of the rigid wall 651 are fixedly connected. The middle position of the opposite surfaces of the two oblique plates 653 is fixedly connected to the rubber tube 654, and the rubber tube 654 is made of rubber material.

[0050] During use, the hydraulic pipe 555 delivers oil pressure to the interior of the component wall 551, and the interior of the cylinder 552 is connected to the interior of the component wall 551. There are several cylinders 552, and the oil pressure pushes the sliding rod 553 to move radially outward. Several cylinders 552 are connected to each other, so that multiple push plates 554 can center and support the workpiece 7. The interior of the rigid wall 651 is filled with dry fine sand particles, and the fine sand particles squeeze the rubber tube 654. The cylindrical rigid wall 651 supports the flow of sand particles, so that the cylindrical workpiece 7 is firmly supported and limited. The lower position of the inner side surface of the workpiece 7 is centered by the push plate 554, and then clamped by the rubber tube 654, which can effectively avoid milling errors caused by eccentricity during processing of the inner side surface of the workpiece 7.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

Claims

1. A milling device for finishing thin-walled cylindrical parts, characterized by: include A water tank table (1), wherein the top of the water tank table (1) is fixedly connected to a device body (2), a sliding door (3) is slidably connected to the surface of the device body (2), and a milling component (4) is fixedly connected to the upper position of the surface of the device body (2); The anti-sputtering mechanism (5) is arranged below the inner side of the device body (2), the surface of the anti-sputtering mechanism (5) clamps the workpiece (7), the inner side of the workpiece (7) is close to the inner side of the water tank table (1), the output end of the milling component (4) performs milling processing on the inner side of the workpiece (7), and the chips fall into the interior of the water tank table (1) through the inner side of the workpiece (7); The anti-deformation mechanism (6) is arranged at a position below the inner side surface of the device body (2) and is used to apply pressure to the surface of the workpiece (7), the pressure supporting the outer side surface of the workpiece (7), the anti-deformation mechanism (6) drives the workpiece (7) to move, and cooperates with the milling component (4) to mill the inner side surface of the workpiece (7); it includes a feeding component (64), the surface of the feeding component (64) is fixedly connected to the uniform component (65), the feeding component (64) transports sand to the interior of the uniform component (65), and the inner side surface of the uniform component (65) is in direct contact with the outer side surface of the workpiece (7); A frame (61) is fixedly connected to the lower position of the inner side surface of the device body (2), a screw rod (62) is rotatably connected to the inner side surface of the frame (61), a slide (63) is connected to the surface of the screw rod (62) via a thread, and a rotating assembly (66) is fixedly connected to the top of the uniform assembly (65); The anti-sputtering mechanism (5) comprises a limiting plate (51), the surface of the limiting plate (51) is fixedly connected to a position below the inner side surface of the device body (2), and a fixing ring (52) is fixedly connected to the inner side surface of the limiting plate (51); The feeding assembly (64) includes a motor (641), one side of the motor (641) is fixedly connected to the surface of the slide (63), and the side of the motor (641) away from the slide (63) is fixedly connected to a component shell (642); A sand feeding end (643) is provided at the top of the component shell (642); a screw rod (644) is fixedly connected to the output end of the motor (641); and the surface of the screw rod (644) is in close contact with the inner side surface of the component shell (642); The uniform component (65) includes a rigid wall (651), the middle portion of the surface of the rigid wall (651) is fixedly connected to a side of the component shell (642) away from the motor (641), and the top and bottom of the rigid wall (651) are both fixedly connected to connecting plates (652); The upper and lower positions of the inner side surface of the rigid wall (651) are fixedly connected with inclined plates (653), and the middle position of the opposite surfaces of the two inclined plates (653) is fixedly connected with a rubber tube (654), and the rubber tube (654) is made of rubber material.

2. A milling device for fine machining of thin-walled cylindrical parts according to claim 1, characterized in that: The inner side surface of the fixing ring (52) is fixedly connected to a first electric cylinder (53) and a second electric cylinder (54), respectively; the surfaces of the first electric cylinder (53) and the second electric cylinder (54) are fixedly connected to a clamping assembly (55).

3. A milling device for fine machining of thin-walled cylindrical parts according to claim 2, characterized in that: The clamping assembly (55) comprises an assembly wall (551), wherein the lower portion of the surface of the assembly wall (551) is fixedly connected to the output ends of the first electric cylinder (53) and the second electric cylinder (54), respectively, and the upper portion of the surface of the assembly wall (551) is fixedly connected to a cylinder body (552).

4. A milling device for fine machining of thin-walled cylindrical parts according to claim 3, characterized in that: The inner side surface of the cylinder body (552) is slidably connected to a sliding rod (553), one end of the sliding rod (553) away from the cylinder body (552) is fixedly connected to a push plate (554), and the bottom of the component wall (551) is fixedly connected to a hydraulic pipe (555).

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