Hob cutter shaft machining device of shield tunneling machine

By designing a tunnel boring machine cutter machining device that integrates slide rails and a moving frame, the problem of reference conversion error caused by dispersed processes was solved, achieving fully automated machining and improving machining accuracy and safety.

CN224143606UActive Publication Date: 2026-04-21NANJING UNIVERSE MASCH MOULD ITD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING UNIVERSE MASCH MOULD ITD
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing tunnel boring machine cutter cutting equipment suffers from problems such as scattered processes and frequent process transitions leading to large reference conversion errors, which affect the processing accuracy.

Method used

A processing device including a base, slide rail, tailstock assembly, clamping mechanism, drive mechanism, and cutting assembly was designed. Through the combination of sliding connection and moving frame, the tunnel boring machine cutter can be quickly fixed and its position adjusted, reducing process changes. Combined with laser rangefinder and control panel, the processing accuracy and stability are ensured.

Benefits of technology

It has achieved fully automated processing of tunnel boring machine cutterheads, reduced reference conversion errors, improved processing accuracy and safety, and enhanced processing efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a shield tunneling machine hobbing cutter shaft machining device, which belongs to the technical field of shield tunneling machine cutter machining, comprises a base, and is characterized in that two groups of sliding rails are arranged at the top of the base, a tailstock assembly and a clamping mechanism are arranged at the top of the base, and a driving mechanism is arranged between the tailstock assembly and the clamping mechanism; the tailstock assembly and the clamping mechanism are both slidably connected to the outer portion of the sliding rail, the clamping mechanism comprises a mounting frame, a servo motor is arranged on one side of the mounting frame, the output end of the servo motor penetrates through the mounting frame and is provided with a hydraulic chuck, and the tailstock assembly comprises a fixing frame; when the shield tunneling machine hob machining device is used, hob machining can be rapidly achieved, subsequent procedure conversion is more convenient, the machined shield tunneling machine hob does not need to be disassembled and assembled again, one-time full-automatic machining is completed, the datum conversion error problem caused by multi-procedure dispersed machining is effectively reduced, and the machining efficiency is improved. And the machining accuracy can be further ensured.
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Description

Technical Field

[0001] This application relates to the field of tunnel boring machine tool processing technology, and in particular to a tunnel boring machine hobbing cutter shaft processing device. Background Technology

[0002] As a core transmission component of tunnel boring machine (TBM) cutter shafts, they must withstand extremely high radial loads and impact forces. Their machining accuracy directly affects cutter life and tunneling efficiency. Currently, the industry commonly uses CNC lathes or specialized grinding machines to machine cutter shafts, but traditional equipment suffers from problems such as accumulated positioning errors and low clamping efficiency.

[0003] When the existing equipment processes the cutterhead of the tunnel boring machine, the processing steps are relatively scattered and the frequent process transitions may increase the generation of errors and cause reference conversion errors, which have a significant impact on the processing accuracy. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a machining device for the cutter shaft of a tunnel boring machine (TBM), which overcomes the deficiencies of existing technologies. It aims to solve the problem that existing devices, when machining TBM cutters, have relatively dispersed machining processes and frequent process transitions, which may increase the generation of errors and cause reference conversion errors, thus significantly affecting the machining accuracy.

[0005] To achieve the above objectives, this application provides the following technical solution: a tunnel boring machine cutter shaft processing device, comprising a base, two sets of slide rails on the top of the base, a tailstock assembly and a clamping mechanism on the top of the base, a driving mechanism between the tailstock assembly and the clamping mechanism, both the tailstock assembly and the clamping mechanism being slidably connected to the outside of the slide rails, the clamping mechanism including a mounting frame, a servo motor on one side of the mounting frame, a hydraulic chuck through the output end of the servo motor, and a fixed frame with a movable center on the front of the fixed frame, the position of the movable center being relative to the hydraulic chuck. A chuck is correspondingly provided, and a tool post assembly is provided on the top of the base. The tool post assembly includes two sets of longitudinal beams, both of which are located on both sides of the tailstock assembly and the clamping mechanism. A transverse moving beam is provided between the two sets of longitudinal beams. A transverse moving frame is slidably connected to the outside of the transverse moving beam. A longitudinal moving frame is provided on one side of the transverse moving frame. A longitudinal moving mechanism is slidably connected to the outside of the longitudinal moving frame. A cutting assembly is provided below the longitudinal moving mechanism. The drive mechanism includes a drive motor and a connecting plate. The drive motor is located between the clamping mechanism and the tailstock assembly, and the drive motor is slidably connected to the slide rail.

[0006] By adopting the above technical solution and setting a base, the tailstock assembly and clamping mechanism can move continuously during use. After placing the tunnel boring machine cutter cutter between the clamping mechanism and the tailstock assembly, a rapid fixing effect can be achieved. Furthermore, the position of the cutter cutter cutter can be rapidly changed. After moving below the cutter holder assembly, the position of the cutting assembly can be quickly adjusted by setting a transverse moving frame and a longitudinal moving frame. This allows for rapid processing of the cutter cutter during use, and makes subsequent process transitions more convenient. There is no need to disassemble and reassemble the processed cutter cutter cutter, completing a one-time fully automated processing. This effectively reduces the reference conversion error problem caused by multi-process decentralized processing, further ensuring processing accuracy.

[0007] As a preferred technical solution of this application, a control panel is provided on one side of the base, and the control panel is electrically connected to the tailstock assembly, the clamping mechanism and the tool holder assembly.

[0008] By adopting the above technical solution and setting up a control panel, the data processed by the device can be better detected and controlled, making it more convenient and stable to use.

[0009] As a preferred technical solution of this application, a laser ranging device is provided at the bottom of the transverse moving frame, the laser ranging device is positioned corresponding to the hydraulic chuck, and the laser ranging device is electrically connected to the control panel.

[0010] By adopting the above technical solution and setting up a laser ranging device, the data of mobile processing can be better monitored, further ensuring the accuracy of processing.

[0011] As a preferred technical solution of this application, protective components are provided on both sides of the clamping mechanism and the tailstock assembly. The protective components include two sets of connecting rods, and a protective curtain is slidably connected between the two sets of connecting rods.

[0012] By adopting the above technical solution, the protective components can isolate the internal processing materials through a sliding protective curtain, protect the external personnel, prevent debris from splashing to both sides during processing and causing damage to the personnel, and improve the safety during use.

[0013] As a preferred technical solution of this application, two sets of stabilizing rods are provided on the outside of the longitudinal moving frame, and both sets of stabilizing rods are slidably connected to the longitudinal moving mechanism.

[0014] By adopting the above technical solution and setting the stabilizing bar, the longitudinal moving mechanism can be made more stable when moving up and down, and at the same time, the load-bearing effect of the longitudinal moving frame on the longitudinal moving mechanism can be improved, thus enhancing the practicality of the device.

[0015] As a preferred technical solution of this application, a telescopic rod is provided between the movable tip and the fixed frame.

[0016] By adopting the above technical solution and setting a telescopic rod, the length of the movable tip can be flexibly adjusted to ensure more stable clamping of materials and improve the practicality of the device.

[0017] As a preferred technical solution of this application, a collection groove is provided between the tailstock assembly and the clamping mechanism, and the collection groove is located at the bottom of the telescopic rod and the hydraulic chuck.

[0018] By adopting the above technical solution and setting up a collection groove, the debris generated during processing can be collected, ensuring that it will not affect the movement of the tailstock assembly and the clamping mechanism, and ensuring stability during use.

[0019] The beneficial effects of this application are:

[0020] 1. By setting a base, the tailstock assembly and clamping mechanism can move continuously during use. After placing the tunnel boring machine cutter cutter between the clamping mechanism and the tailstock assembly, a quick fixing effect can be achieved. The position of the cutter cutter cutter can also be quickly changed. After moving to the bottom of the cutter holder assembly, the position of the cutting assembly can be quickly adjusted by setting a transverse moving frame and a longitudinal moving frame. This allows for rapid processing of the cutter cutter during use, and makes subsequent process transitions more convenient. There is no need to disassemble and reassemble the processed cutter cutter cutter, completing a one-time fully automatic processing. This effectively reduces the reference conversion error caused by multi-process decentralized processing, further ensuring processing accuracy.

[0021] 2. By setting up the control panel, the data processed by the device can be better detected and controlled, making it more convenient and stable to use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a schematic diagram of the tailstock assembly and clamping mechanism of this application;

[0024] Figure 3 This is a schematic diagram of the overall structure of the tool holder assembly in this application;

[0025] Figure 4 This is a schematic diagram of the transversely moving beam structure of this application;

[0026] Figure 5 This is a schematic diagram of the drive mechanism structure of this application.

[0027] In the diagram: 1. Base; 101. Slide rail; 2. Tailstock assembly; 201. Fixing frame; 202. Telescopic rod; 203. Movable center; 3. Clamping mechanism; 301. Mounting frame; 302. Servo motor; 303. Hydraulic chuck; 4. Drive mechanism; 401. Drive motor; 402. Connecting plate; 5. Tool holder assembly; 501. Longitudinal beam; 502. Lateral moving beam; 503. Lateral moving frame; 504. Longitudinal moving frame; 505. Longitudinal moving mechanism; 506. Cutting assembly; 507. Stabilizing rod; 508. Laser rangefinder; 6. Control panel; 7. Protective assembly; 701. Connecting rod; 702. Protective curtain; 8. Collection trough. Detailed Implementation

[0028] The technical solutions of the embodiments 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, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Reference Figure 1-5A tunnel boring machine cutter shaft processing device includes a base 1, with two sets of slide rails 101 on the top of the base 1. A tailstock assembly 2 and a clamping mechanism 3 are also located on the top of the base 1. A drive mechanism 4 is located between the tailstock assembly 2 and the clamping mechanism 3. Both the tailstock assembly 2 and the clamping mechanism 3 are slidably connected to the outside of the slide rails 101. The clamping mechanism 3 includes a mounting frame 301, with a servo motor 302 on one side of the mounting frame 301. A hydraulic chuck 303 is installed through the mounting frame 301 at the output end of the servo motor 302. The tailstock assembly 2 includes a fixed frame 201, with a movable tip 203 on the front of the fixed frame 201. The position of the movable tip 203 corresponds to that of the hydraulic chuck 303. The base 1... A tool holder assembly 5 is mounted at the top, comprising two sets of longitudinal beams 501, both located on either side of the tailstock assembly 2 and the clamping mechanism 3. A transverse moving beam 502 is positioned between the two sets of longitudinal beams 501, and a transverse moving frame 503 is slidably connected to the outside of the transverse moving beam 502. A longitudinal moving frame 504 is mounted on one side of the transverse moving frame 503, and a longitudinal moving mechanism 505 is slidably connected to the outside of the longitudinal moving frame 504. A cutting assembly 506 is mounted below the longitudinal moving mechanism 505. The drive mechanism 4 comprises a drive motor 401 and a connecting plate 402. The drive motor 401 is located between the clamping mechanism 3 and the tailstock assembly 2, and is slidably connected to the slide rail 101. A laser rangefinder 508 is mounted at the bottom of the transverse moving frame 503, corresponding to the position of the hydraulic chuck 303, and is electrically connected to the control panel 6.

[0030] By setting up the base 1, the tailstock assembly 2 and clamping mechanism 3 can move continuously during use. After placing the tunnel boring machine cutter cutter between the clamping mechanism 3 and the tailstock assembly 2, a quick fixing effect can be achieved. The position of the cutter cutter cutter can also be quickly changed. After moving to below the cutter holder assembly 5, the position of the cutting assembly 506 can be quickly adjusted by setting up the transverse moving frame 503 and the longitudinal moving frame 504. This allows for rapid processing of the cutter cutter during use, and makes subsequent process transitions more convenient. There is no need to disassemble and reassemble the processed cutter cutter cutter, achieving fully automated processing in one go. This effectively reduces the reference conversion error caused by multi-process decentralized processing, further ensuring processing accuracy. The laser rangefinder 508 allows for better monitoring of the moving processing data, further ensuring processing accuracy.

[0031] Reference Figure 1A control panel 6 is provided on one side of the base 1. The control panel 6 is electrically connected to the tailstock assembly 2, the clamping mechanism 3, and the tool holder assembly 5. Protective components 7 are provided on both sides of the clamping mechanism 3 and the tailstock assembly 2. The protective components 7 include two sets of connecting rods 701, and a protective curtain 702 is slidably connected between the two sets of connecting rods 701. A telescopic rod 202 is provided between the movable tip 203 and the fixed frame 201. By setting up the control panel 6, the processing data of the device can be better detected and controlled, making it more convenient and stable to use. The protective components 7 can isolate the internal processing materials by sliding the protective curtain 702, which can protect the external personnel and prevent debris from splashing to both sides during processing, thus improving the safety of use. The telescopic rod 202 can flexibly adjust the length of the movable tip 203 to ensure more stable clamping of materials and improve the practicality of the device.

[0032] Reference Figure 1 Two sets of stabilizing bars 507 are provided on the outside of the longitudinal moving frame 504. Both sets of stabilizing bars 507 are slidably connected to the longitudinal moving mechanism 505. The stabilizing bars 507 can make the longitudinal moving mechanism 505 more stable when moving up and down, and at the same time improve the load-bearing capacity of the longitudinal moving frame 504 for the longitudinal moving mechanism 505, thus improving the practicality of the device. A collection groove 8 is provided between the tailstock assembly 2 and the clamping mechanism 3. The collection groove 8 is located at the bottom of the telescopic rod 202 and the hydraulic chuck 303. By providing the collection groove 8, the debris generated during processing can be collected to ensure that it will not affect the movement of the tailstock assembly 2 and the clamping mechanism 3, thus ensuring stability during use.

[0033] Working principle: By setting the base 1, the tailstock assembly 2 and clamping mechanism 3 can move continuously during use. After the tunnel boring machine cutter is placed between the clamping mechanism 3 and the tailstock assembly 2, a quick fixing effect can be achieved, and the position of the tunnel boring machine cutter can be quickly changed. After moving to the bottom of the cutter holder assembly 5, the position of the cutting assembly 506 can be quickly adjusted by setting the transverse moving frame 503 and the longitudinal moving frame 504. In this way, the processing of the cutter can be quickly realized during use, and the subsequent process conversion is more convenient. There is no need to disassemble and install the processed tunnel boring machine cutter again, and a one-time fully automatic processing is completed. This effectively reduces the reference conversion error problem caused by multi-process decentralized processing, and can further ensure the accuracy of processing. By setting the control panel 6, the processing data of the device can be better detected and controlled, making it more convenient and stable during use.

[0034] The laser rangefinder 508 can better monitor the data of mobile processing, further ensuring the accuracy of processing. The protective component 7 can isolate the internal processing materials by sliding the protective curtain 702, which can protect the external personnel and prevent debris from splashing to both sides during processing, causing damage to the personnel and improving the safety during use.

[0035] Meanwhile, the stabilizer bar 507 can make the longitudinal moving mechanism 505 more stable when moving up and down, and can also improve the load-bearing effect of the longitudinal moving frame 504 on the longitudinal moving mechanism 505, thus improving the practicality of the device.

[0036] In addition, the telescopic rod 202 allows for flexible adjustment of the length of the movable tip 203, ensuring more stable clamping of materials and improving the practicality of the device. The collection groove 8 can collect the debris generated during processing, ensuring that it does not affect the movement of the tailstock assembly 2 and the clamping mechanism 3, thus ensuring stability during use.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for machining a cutter shaft of a TBM cutter, comprising a base (1), characterized in that, The base (1) has two sets of slide rails (101) on its top. The base (1) also has a tailstock assembly (2) and a clamping mechanism (3) on its top. A drive mechanism (4) is provided between the tailstock assembly (2) and the clamping mechanism (3). The tailstock assembly (2) and the clamping mechanism (3) are slidably connected to the outside of the slide rails (101). The clamping mechanism (3) includes a mounting bracket (301). A servo motor (302) is provided on one side of the mounting bracket (301). A hydraulic chuck (303) is provided through the output end of the servo motor (302) through the mounting bracket (301). The tailstock assembly (2) includes a fixed bracket (201). A movable tip (203) is provided on the front of the fixed bracket (201). The position of the movable tip (203) corresponds to that of the hydraulic chuck (303). The base (1) has a tool holder assembly on its top. (5) The tool holder assembly (5) includes two sets of longitudinal beams (501). Both sets of longitudinal beams (501) are located on both sides of the tailstock assembly (2) and the clamping mechanism (3). A transverse moving beam (502) is provided between the two sets of longitudinal beams (501). A transverse moving frame (503) is slidably connected to the outside of the transverse moving beam (502). A longitudinal moving frame (504) is provided on one side of the transverse moving frame (503). A longitudinal moving mechanism (505) is slidably connected to the outside of the longitudinal moving frame (504). A cutting assembly (506) is provided below the longitudinal moving mechanism (505). The drive mechanism (4) includes a drive motor (401) and a connecting plate (402). The drive motor (401) is located between the clamping mechanism (3) and the tailstock assembly (2). The drive motor (401) is slidably connected to the slide rail (101).

2. The device according to claim 1, characterized in that, A control panel (6) is provided on one side of the base (1), and the control panel (6) is electrically connected to the tailstock assembly (2), the clamping mechanism (3) and the tool holder assembly (5).

3. The device according to claim 2, characterized in that, A laser rangefinder (508) is provided at the bottom of the transverse moving frame (503). The laser rangefinder (508) is positioned corresponding to the hydraulic chuck (303). The laser rangefinder (508) is electrically connected to the control panel (6).

4. The device according to claim 1, wherein, Both sides of the clamping mechanism (3) and the tailstock assembly (2) are provided with protective components (7). The protective components (7) include two sets of connecting rods (701), and a protective curtain (702) is slidably connected between the two sets of connecting rods (701).

5. The device according to claim 1, wherein The longitudinal moving frame (504) is provided with two sets of stabilizing rods (507) on its exterior, and both sets of stabilizing rods (507) are slidably connected to the longitudinal moving mechanism (505).

6. The device according to claim 1, wherein A telescopic rod (202) is provided between the movable top (203) and the fixed frame (201).

7. The device according to claim 6, characterized in that, The tailstock assembly (2) and the clamping mechanism (3) are provided with a collecting groove (8), and the collecting groove (8) is located at the bottom of the telescopic rod (202) and the hydraulic chuck (303).