Variable cross-section flange follow-up cutting adjusting mechanism of large vertical lathe

Abstract

This invention relates to the technical field of machining, and discloses a variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe. The mechanism includes a support frame, a tool holder, a tool shank, a cutting tool, and a first driving member. The tool holder is pivotally connected to the support frame; the tool shank is fixedly connected to the tool holder; the cutting tool is fixedly connected to the end of the tool shank; and the first driving member is hinged to the tool holder. The first driving member can drive the cutting tool to rotate around the support frame, thereby changing the cutting angle of the cutting tool. The tool holder is pivotally connected to the support frame, the tool shank is fixedly connected to the tool holder, and the cutting tool is fixedly connected to the end of the tool shank. The first driving member is hinged to the tool holder and can drive the cutting tool to rotate around the support frame, thereby changing the cutting angle of the cutting tool. The cutting angle of the cutting tool can be adjusted according to the allowance fluctuations of the variable cross-section flange blank to adapt to the cross-sectional changes of different parts of the flange, reducing the occurrence of residual allowance in thick-walled areas and overcutting in thin-walled areas, thereby reducing the rework rate per piece and improving machining accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of cutting processes, and more specifically to a variable cross-section flange follow-up cutting adjustment mechanism for large vertical lathes. Background Technology

[0002] Variable cross-section flanges are widely used in the wind power industry, and their machining quality directly affects the performance and stability of the entire equipment. In the past, variable cross-section flange machining typically used fixed-angle, fixed-feed-depth tool holders to adjust the tool holder angle and feed depth. However, for variable cross-section workpieces with bevels or rounded corners, adjusting the tool angle required manual machine stopping. Furthermore, existing tool holders cannot adapt to the non-uniform allowance fluctuations in the variable cross-section flange blank, leading to problems such as residual allowance in thick-walled areas and overcutting in thin-walled areas, resulting in a high rework rate per piece. Summary of the Invention

[0003] In view of this, the present invention provides a variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe to solve the problem that the existing tool holder cannot adapt to the non-uniform allowance fluctuation of the variable cross-section flange blank, and the problem that after processing, there is a high rate of rework in the thick-walled area and overcutting in the thin-walled area.

[0004] In a first aspect, this application provides a variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe, comprising: Support frame; The tool holder is pivotally connected to the support frame; The tool holder is fixedly connected to the tool post; The cutting tool is fixedly connected to the end of the cutting shank. A first driving member is hinged to the tool holder. The first driving member can drive the tool to rotate around the support frame to change the cutting angle of the tool.

[0005] Beneficial effects: The tool holder is pivotally connected to the support frame, the tool shank is fixedly connected to the tool holder, and the cutting tool is fixedly connected to the end of the tool shank. The first driving component is hinged to the tool holder and can drive the cutting tool to rotate around the support frame, thereby changing the cutting angle of the cutting tool. The cutting angle of the cutting tool can be adjusted according to the allowance fluctuations of the variable cross-section flange blank to adapt to the cross-sectional changes of different parts of the flange, reducing the occurrence of residual allowance in thick-walled areas and overcutting in thin-walled areas, thereby reducing the rework rate per piece and improving machining accuracy and efficiency.

[0006] In one alternative implementation, it further includes: Base plate; The feed tray is slidably connected to the base plate, and the support frame is fixedly connected to the feed tray; The second driving component is mounted on the base plate and connected to the feed tray; The second driving member can drive the feed tray to move along the length direction of the base plate.

[0007] Beneficial effects: The support frame is fixed to the feed plate, and the second drive unit is mounted on the base plate and connected to the feed plate, enabling the feed plate to move along the length of the base plate. The second drive unit can move the cutting tool along the feed direction, allowing for adjustment of the cutting feed. Combined with adjustments to the cutting angle, this further adapts to the non-uniform allowance fluctuations of variable cross-section flanges, making the cutting process more closely resemble the actual shape of the flange blank, thus improving machining adaptability and quality.

[0008] In one alternative embodiment, the second driving member is a linear motor, the first driving member is a voice coil motor, the base of the first driving member is hinged to the feed support plate, and the driving end of the first driving member is hinged to the tool holder.

[0009] Beneficial effects: Linear motors offer high precision and fast response, controlling the displacement of the feed tray to ensure accurate feed depth adjustment meets machining requirements. Voice coil motors are compact and provide stable driving force, enabling the tool holder to rotate and allowing for precise adjustment of the cutting angle. The hinged design of the first drive component ensures flexibility and stability when rotating the tool holder, preventing jamming during adjustment.

[0010] In one alternative embodiment, an encoder is further included, which is pivotally connected to the tool holder and is used to acquire the cutting angle of the tool.

[0011] Beneficial effects: The encoder can detect the actual cutting angle of the tool in real time and feed back the detection signal, which makes it easy for the operator to grasp the cutting angle in real time and adjust the action of the first drive component in time to ensure that the cutting angle meets the processing requirements, avoid processing defects caused by angle deviation, and further improve processing accuracy and processing stability.

[0012] In one alternative implementation, it further includes: In-situ contacts are located on the base plate; The first limiting contact is spaced apart from the original contact and is mounted on the base plate; The second limiting contact is located on both sides of the original contact, and the first limiting contact is mounted on the base plate. The contact is fixedly connected to the feed tray; The in-situ contact, the first limiting contact, and the second limiting contact are all located on the movement path of the contact.

[0013] Beneficial effects: The in-situ contact enables the in-situ positioning of the feed tray, facilitating the reset operation before processing and ensuring that the starting position of each processing is consistent; the first limit contact and the second limit contact are located on both sides of the in-situ contact, which can limit the movement range of the feed tray, avoid excessive movement of the feed tray causing the tool to collide with the equipment or workpiece, protect the safety of the tool, equipment and workpiece, reduce the risk of equipment damage and workpiece scrap, and improve the safety and reliability of the processing.

[0014] In one alternative embodiment, a grating ruler is further included, mounted on the base plate, for obtaining the displacement of the feed tray.

[0015] Beneficial effects: The grating ruler can detect the actual displacement of the feed plate in real time, realize the detection and feedback of the feed depth, facilitate the operation or control system to adjust, further improve the processing accuracy, ensure that the dimensions of the processed flange meet the requirements, and reduce processing errors and rework.

[0016] In one optional embodiment, the tool holder has a first arc-shaped clamping part and a second arc-shaped clamping part arranged opposite to each other. The first arc-shaped clamping part is connected to the second arc-shaped clamping part by bolts, and the first arc-shaped clamping part and the second arc-shaped clamping part enclose a clamping cavity. One end of the tool bar is used to insert into the clamping cavity.

[0017] Beneficial effects: The structure of the arc-shaped clamp can better fit the shape of the tool holder, and the tool holder can be firmly clamped by bolt connection, which can prevent the tool holder from loosening or shifting during cutting, ensure the cutting stability of the tool, reduce the machining deviation caused by tool holder loosening, and facilitate the installation, disassembly and replacement of the tool holder, thus improving the maintenance convenience of the equipment.

[0018] In one optional embodiment, a damping block is further included, and a receiving cavity is provided inside the tool holder. The damping block is located inside the receiving cavity, and the maximum distance between the damping block and the inner wall of the receiving cavity is less than or equal to 1 cm.

[0019] Beneficial effects: The damping block can absorb the vibration generated during the cutting process, reduce the impact of vibration on the tool holder and the tool, avoid tool runout caused by vibration, and thus reduce defects such as ripples and burrs on the machined surface, improving the quality of the machined surface; at the same time, the distance between the damping block and the inner wall of the receiving cavity is controlled within 1 cm, which can ensure the vibration reduction effect of the damping block, avoid excessive shaking of the damping block in the receiving cavity, and ensure the stability of the vibration reduction effect.

[0020] In an optional embodiment, the damping block further includes a plurality of first auxiliary modules, which are evenly spaced around the axial direction of the damping block. Each first damping block includes a first open cylinder and a first spring. The damping block has a plurality of first sliding grooves, which are spaced around the circumference of the damping block. The first open cylinder is inserted into the corresponding first sliding groove and is slidably connected to the inner wall of the first sliding groove. The two ends of the first spring are fixedly connected to the bottom wall of the first sliding groove and the bottom wall of the first open cylinder, respectively.

[0021] Beneficial effects: Multiple evenly distributed first auxiliary modules can absorb vibrations from the circumference of the damping block, improving the vibration reduction effect and reducing the impact of cutting vibration on machining.

[0022] In an optional embodiment, a second auxiliary module is further included. Two second auxiliary modules are respectively disposed at both ends of the damping block. Each second auxiliary module includes a second open cylinder and a second spring. A second groove is provided at both ends of the damping block. The second open cylinder is inserted into the corresponding second groove and is slidably connected to the inner wall of the second groove. The two ends of the second spring are fixedly connected to the bottom wall of the second groove and the bottom wall of the second open cylinder, respectively.

[0023] Beneficial effects: The two second auxiliary modules can absorb vibration from the axial direction of the damping block. Together with the first auxiliary module in the circumferential direction, they can achieve all-round vibration reduction of the damping block, further improving the vibration reduction effect, suppressing vibration in all directions during the cutting process, reducing the impact of vibration on the tool holder, cutting tool and workpiece, further improving machining accuracy and surface quality, and reducing rework rate. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of a variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe provided in this application embodiment; Figure 2 A schematic diagram of the structure of a variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe provided in this application embodiment; Figure 3 for Figure 1 A magnified view of a portion of the center circle A; Figure 4A cross-sectional view of the tool holder and tool post in a variable cross-section flange follow-up cutting adjustment mechanism of a large vertical lathe provided in this application embodiment; Figure 5 for Figure 4 A magnified view of a portion of circle B in the center.

[0026] Explanation of reference numerals in the attached figures: 101. Base plate; 102. Support frame; 103. First drive component; 104. Feed tray; 105. Second drive component; 106. Encoder; 107. Home position contact; 108. First limit contact; 109. Second limit contact; 110. Contact head; 111. Grating ruler; 112. Slide rail; 201. Tool holder; 202. Tool shank; 203. Tool; 204. Damping block; 2041. First slide groove; 2042. Second slide groove; 2051. First open cylinder; 2052. First spring; 2061. Second open cylinder; 2062. Second spring; 301. First arc-shaped clamp; 302. Second arc-shaped clamp; Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0031] The technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of the present invention, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of the present invention without creative effort are also within the protection scope of the present invention.

[0032] The variable cross-section flange follow-up cutting adjustment mechanism for large vertical lathes provided in this application embodiment, such as... Figures 1 to 5 As shown, the assembly includes a support frame 102, a tool holder 201, a tool shank 202, a cutting tool 203, and a first driving member 103. The tool holder 201 is pivotally connected to the support frame 102, the tool shank 202 is fixedly connected to the tool holder 201, the cutting tool 203 is fixedly connected to the end of the tool shank 202, and the first driving member 103 is hinged to the tool holder 201. The first driving member 103 can drive the cutting tool 203 to rotate around the support frame 102, changing the cutting angle of the cutting tool 203. This allows the cutting angle of the cutting tool 203 to be adjusted according to the fluctuation of the allowance of the variable cross-section flange blank, adapting to the cross-sectional changes of different parts of the flange, reducing the allowance residue in the thick-walled area and the overcutting in the thin-walled area, reducing the single-piece rework rate, and improving the processing accuracy and efficiency.

[0033] Specifically, such as Figure 1 and Figure 2As shown, the support frame 102 serves for support and positioning. The support frame 102 is made of high-strength metal to ensure its stability and durability. The shape of the support frame 102 can be frame-like, designed according to actual installation and usage requirements. The tool holder 201 includes a first arc-shaped clamp 301 and a second arc-shaped clamp 302 arranged opposite each other. The first arc-shaped clamp 301 is connected to the second arc-shaped clamp 302 by bolts, and the two together form a clamping cavity. The structure of the arc-shaped clamps can better fit the circular shape of the tool holder 202, and the tool holder 202 can be firmly clamped by tightening the bolts. The first arc-shaped clamp 301 and the second arc-shaped clamp 302 can be made using a casting process, and the material can be cast iron, giving the first arc-shaped clamp 301 and the second arc-shaped clamp 302 a certain strength and toughness. The pivot shaft of the tool holder 201 can be connected to the support frame 102 using bearings. One end of the tool shank 202 is inserted into the clamping cavity. The tool shank 202 is made of high-strength alloy steel to withstand the enormous pressure during cutting. The tool shank 202 is cylindrical in shape, and its surface requires precision machining to ensure accurate fit with the tool holder 201. Besides bolt fastening to the arc-shaped clamp, the tool shank 202 and tool holder 201 can also be fixed together using a key connection to further enhance connection stability. The cutting tool 203 is fixedly connected to the end of the tool shank 202. Different types of cutting tools 203 can be selected according to different machining requirements. The connection between the cutting tool 203 and the tool shank 202 is secured with bolts, facilitating tool replacement and adjustment.

[0034] In this embodiment, as Figure 1 and Figure 2 As shown, the first driving component 103 is a voice coil motor, which is characterized by its small size and stable driving force. The base of the voice coil motor is hinged to the feed plate 104, and the driving end is hinged to the tool holder 201. This hinged connection ensures the flexibility and stability of the first driving component 103 when driving the tool holder 201, avoiding jamming during adjustment. The voice coil motor achieves precise driving by controlling the magnitude and direction of the current, thereby driving the tool holder 201 to rotate and changing the cutting angle of the tool 203. Alternatively, the first driving component 103 can also be a servo motor paired with a reducer, which can also achieve the same driving effect on the tool holder 201. The second driving component 105 is a linear motor. Linear motors have high driving precision and fast response speed, and can control the displacement of the feed plate 104 to ensure that the accuracy of the feed depth adjustment meets the machining requirements. Alternatively, the second driving component 105 can also be a ball screw pair paired with a servo motor, which can also achieve precise driving effect on the feed plate 104.

[0035] In this embodiment, a base plate 101, a feed support plate 104, and a second drive member 105 are also included. The feed support plate 104 is slidably connected to the base plate 101, and a slide rail 112 is provided on the base plate 101. The feed support plate 104 is slidably connected to the slide rail 112. A support frame 102 is fixedly connected to the feed support plate 104. The second drive member 105 is mounted on the base plate 101 and connected to the feed support plate 104. The second drive member 105 can drive the feed support plate 104 to move along the length direction of the base plate 101. The second drive member 105 drives the tool 203 to move along the feed direction, thereby adjusting the cutting feed. Combined with the adjustment of the cutting angle of the tool 203, this further adapts to the non-uniform allowance fluctuations of the variable cross-section flange, improving the machining adaptability and machining quality. The second drive unit 105 can precisely control the movement of the feed plate 104, thereby changing the feed depth of the tool 203. This, combined with the adjustment of the cutting angle of the tool 203, better adapts to the machining requirements of the variable cross-section flange.

[0036] Specifically, the base plate 101 can be made of cast iron through a casting process, providing good rigidity and stability. The feed tray 104 and the base plate 101 are slidably connected via a slide rail 112, which is a linear guide rail with high precision and high load-bearing capacity. A support frame 102 is fixedly connected to the feed tray 104, and the two can be connected by bolts to ensure a secure connection.

[0037] In this embodiment, as Figure 2 As shown, the tool holder 201 also includes an encoder 106, which is pivotally connected to the tool holder 201. The encoder 106 is used to acquire the cutting angle of the tool 203. Mounted on the pivot shaft of the tool holder, the encoder 106 can detect the actual cutting angle of the tool 203 in real time and feed back the detection signal. This allows the operator to monitor the cutting angle in real time and adjust the action of the first drive component 103 accordingly, ensuring that the cutting angle meets the machining requirements and avoiding machining defects caused by angle deviations, thereby further improving machining accuracy and stability. The encoder 106 can be an incremental encoder or an absolute encoder, selected according to the actual accuracy requirements.

[0038] In this embodiment, as Figure 1 and Figure 3As shown, it also includes a home contact 107, a first limiting contact 108, a second limiting contact 109, and a contact 110. The home contact 107 is disposed on the base plate 101. The first limiting contact 108 is disposed at an interval from the home contact 107 and is mounted on the base plate 101. The second limiting contact 109 is located on both sides of the home contact 107 and is mounted on the base plate 101. The contact 110 is fixedly connected to the feed support plate 104. The home contact 107, the first limiting contact 108, and the second limiting contact 109 are all located on the moving path of the contact 110. The home-position contact 107 enables the in-situ positioning of the feed tray 104, facilitating pre-processing reset and ensuring consistent starting positions for each machining operation. The first limit contact 108 and the second limit contact 109, located on either side of the home-position contact 107, limit the movement range of the feed tray 104, preventing excessive movement and potential collisions between the tool 203 and the equipment or workpiece. This protects the tool 203, equipment, and workpiece, reducing the risk of equipment damage and workpiece scrap, and improving the safety and reliability of the machining process. These contacts can be microswitches or proximity switches, offering high sensitivity and reliability. The home-position contact 107, the first limit contact 108, and the second limit contact 109 are all contactor contacts.

[0039] In this embodiment, as Figure 1 and Figure 2 As shown, it also includes a grating ruler 111, mounted on the base plate 101, used to acquire the displacement of the feed tray 104. The grating ruler 111 can detect the actual displacement of the feed tray 104 in real time, realizing the detection and feedback of the feed depth, which is convenient for operators or control systems to adjust, further improving the machining accuracy, ensuring that the dimensions of the machined flange meet the requirements, and reducing machining errors and rework. The grating ruler 111 can be a transmission type or a reflection type, depending on the actual installation and usage environment.

[0040] In this embodiment, as Figure 4 and Figure 5 As shown, it also includes a damping block 204. A receiving cavity is provided inside the tool holder 202, and the damping block 204 is located within the receiving cavity. The maximum distance between the damping block 204 and the inner wall of the receiving cavity is less than or equal to 1 cm. The damping block 204 can absorb vibrations generated during cutting, reducing the impact of vibrations on the tool holder 202 and the cutting tool 203, preventing tool 203 runout caused by vibration, thereby reducing defects such as ripples and burrs on the machined surface and improving the surface quality. Simultaneously, controlling the distance between the damping block 204 and the inner wall of the receiving cavity to 1 cm or less ensures the vibration reduction effect of the damping block 204, preventing excessive shaking of the damping block 204 within the receiving cavity, and ensuring the stability of the vibration reduction effect. The damping block 204 can be made of materials with good vibration reduction properties, such as rubber or polyurethane.

[0041] In this embodiment, as Figure 4 and Figure 5 As shown, four first auxiliary modules are evenly spaced along the axial direction of the damping block 204. Each first damping block 204 includes a first open cylinder 2051 and a first spring 2052. Multiple first grooves 2041 are formed on the damping block 204, and the four first grooves 2041 are spaced circumferentially around the damping block 204. The first open cylinder 2051 is inserted into the corresponding first groove 2041 and slidably connected to the inner wall of the first groove 2041. The two ends of the first spring 2052 are fixedly connected to the bottom wall of the first groove 2041 and the bottom wall of the first open cylinder 2051, respectively. The four evenly distributed first auxiliary modules can absorb vibrations from all directions around the damping block 204, improving the vibration reduction effect and reducing the impact of cutting vibrations on machining. The first open cylinder 2051 can be made of metal.

[0042] In this embodiment, as Figure 4 and Figure 5 As shown, it also includes a second auxiliary module. Two second auxiliary modules are respectively disposed at both ends of the damping block 204. Each second auxiliary module includes a second open cylinder 2061 and a second spring 2062. Both ends of the damping block 204 have second grooves 2042. The second open cylinder 2061 is inserted into the corresponding second groove 2042 and slidably connected to the inner wall of the second groove 2042. The two ends of the second spring 2062 are fixedly connected to the bottom wall of the second groove 2042 and the bottom wall of the second open cylinder 2061, respectively. The two second auxiliary modules can absorb vibration from the axial direction of the damping block 204. Combined with the circumferential first auxiliary module, they achieve all-around vibration reduction of the damping block 204, further improving the vibration reduction effect, suppressing vibration in all directions during cutting, reducing the impact of vibration on the tool holder 202, the cutting tool 203, and the workpiece, further improving machining accuracy and surface quality, and reducing rework rate. The second open cylinder 2061 can also be made of aluminum alloy.

[0043] In this embodiment, the variable cross-section flange follow-up cutting adjustment mechanism of the large vertical lathe drives the tool holder 201 to rotate via the first driving component 103, changing the cutting angle of the tool 203. Simultaneously, the second driving component 105 drives the feed plate 104 to move, realizing the feed adjustment of the tool 203. The two work together to flexibly adjust according to the allowance fluctuation of the variable cross-section flange blank, reducing machining defects and improving machining accuracy and efficiency. The encoder 106 monitors the cutting angle of the tool 203 in real time, and the grating ruler 111 monitors the displacement of the feed plate 104, providing feedback for precise control. The in-situ contact 107, the first limit contact 108, and the second limit contact 109 ensure the safety and stability of machining. The damping block 204 and the auxiliary module absorb vibrations during the cutting process, improving the surface quality of the machined part.

[0044] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe, characterized in that, include: Support frame (102); The tool holder (201) is pivotally connected to the support frame (102); The tool holder (202) is fixedly connected to the tool post (201); The cutting tool (203) is fixedly connected to the end of the cutting shank (202); The first driving member (103) is hinged to the tool holder (201). The first driving member (103) can drive the tool (203) to rotate around the support frame (102) to change the cutting angle of the tool (203).

2. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 1, characterized in that, Also includes: Base plate (101); The feed tray (104) is slidably connected to the base plate (101), and the support frame (102) is fixedly connected to the feed tray (104); The second driving component (105) is mounted on the base plate (101) and connected to the feed tray (104); The second driving member (105) can drive the feed tray (104) to move along the length direction of the base plate (101).

3. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 2, characterized in that, The second drive unit (105) is a linear motor, the first drive unit (103) is a voice coil motor, the base of the first drive unit (103) is hinged to the feed tray (104), and the drive end of the first drive unit (103) is hinged to the tool holder (201).

4. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 3, characterized in that, It also includes an encoder (106) which is pivotally connected to the tool holder (201) and is used to obtain the cutting angle of the tool (203).

5. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 4, characterized in that, Also includes: In-situ contact (107) is disposed on the base plate (101); The first limiting contact (108) is spaced apart from the original contact (107) and is mounted on the base plate (101); The second limiting contact (109) and the first limiting contact (108) are located on opposite sides of the original contact (107), and the second limiting contact (109) is mounted on the base plate (101); The contact (110) is fixedly connected to the feed tray (104); The in-situ contact (107), the first limiting contact (108), and the second limiting contact (109) are all located on the moving path of the contact (110).

6. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 5, characterized in that, It also includes a grating ruler (111), which is mounted on the base plate (101) and is used to obtain the displacement of the feed tray (104).

7. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to any one of claims 1-6, characterized in that, The tool holder (201) has a first arc-shaped clamp (301) and a second arc-shaped clamp (302) that are arranged opposite to each other. The first arc-shaped clamp (301) is connected to the second arc-shaped clamp (302) by bolts, and the first arc-shaped clamp (301) and the second arc-shaped clamp (302) form a clamping cavity. One end of the tool bar (202) is used to insert into the clamping cavity.

8. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 7, characterized in that, It also includes a damping block (204), and the cutter bar (202) has a receiving cavity. The damping block (204) is located in the receiving cavity, and the maximum distance between the damping block (204) and the inner wall of the receiving cavity is less than or equal to 1 cm.

9. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 8, characterized in that, It also includes multiple first auxiliary modules, which are evenly spaced around the damping block (204) axially. Each first auxiliary module includes a first open cylinder (2051) and a first spring (2052). Multiple first sliding grooves (2041) are provided on the damping block (204), which are spaced around the circumference of the damping block (204). The first open cylinder (2051) is inserted into the corresponding first sliding groove (2041) and is slidably connected to the inner wall of the first sliding groove (2041). The two ends of the first spring (2052) are fixedly connected to the bottom wall of the first sliding groove (2041) and the bottom wall of the first open cylinder (2051), respectively.

10. The variable cross-section flange follow-up cutting adjustment mechanism for a large vertical lathe according to claim 9, characterized in that, It also includes a second auxiliary module, with two second auxiliary modules respectively disposed at both ends of the damping block (204). Each second auxiliary module includes a second open cylinder (2061) and a second spring (2062). Both ends of the damping block (204) are provided with a second groove (2042). The second open cylinder (2061) is inserted into the corresponding second groove (2042) and is slidably connected to the inner wall of the second groove (2042). The two ends of the second spring (2062) are fixedly connected to the bottom wall of the second groove (2042) and the bottom wall of the second open cylinder (2061) respectively.

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