TBM Quick Tool Changer and Its Supporting Usage Method

By designing the TBM quick tool change holder and using robots and hydraulic systems to achieve semi-automated tool replacement, the problems of difficult and low efficiency of hob replacement in the prior art are solved, and the work efficiency and equipment maintenance are improved.

CN116624161BActive Publication Date: 2025-06-24STATE KEY LAB OF SHIELD & TUNNELING TECH +1
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Patent Information

Application Number
CN202310442294.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-23
Publication Date
2025-06-24
Estimated Expiration
2043-04-23

AI Technical Summary

Technical Problem

In the prior art, the replacement of the hob is difficult and the replacement efficiency is low. Manual operation can easily lead to the hob bump, which increases labor intensity and work risks.

Method used

A TBM quick tool change tool holder is designed, including a hoisting rack, wedge positioning device and tool clamping assembly. The semi-automated tool replacement process is realized through robotics and hydraulic systems, reducing manual operations and improving replacement efficiency.

Benefits of technology

The assembly line operation of hob replacement is realized, which improves work efficiency and reduces the labor intensity of operators. The equipment itself is easy to repair and maintain, and reduces the overall construction cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of cutter replacement equipment in shield construction, in particular to a TBM rapid cutter-changing tool rest and a supporting usage method. It aims to solve the problems of difficult cutter replacement and low replacement efficiency in the prior art. The present invention includes a hoisting frame, which comprises a bottom panel, side panels, and a rear panel. A hoisting cable is provided at the top of the hoisting frame, a positioning pin is provided at the bottom of the hoisting frame, a wedge block operation assembly for driving the wedge-shaped positioning device to move is installed on the outer side surface of the hoisting frame, and a tool clamping assembly for clamping the hob is provided in the middle of the hoisting frame. The advantages are as follows: It has multiple workstations, the conversion speed between work steps of each workstation is fast, the work efficiency is high, at the same time, the manual labor cost is reduced, the floor area is small, and the degree of automation is high.
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Description

Technical Field

[0001] The present invention relates to the field of sealing equipment in shield TBM construction, in particular to a TBM cutter changing tool holder and a matching usage method. Background Art

[0002] With the continuous improvement of technologies in the field of tunnel boring, the requirements for tunnel engineering are getting higher and higher, and shield technology is also developing in a higher direction. In related construction, the technological improvement of rolling cutters is the main direction of innovation in related fields.

[0003] At the present stage, the improvements to rolling cutters mainly lie in: 1. Quick disassembly and replacement of cutter boxes; 2. Extension of tool life; 3. Effective removal of cutter head mud cakes.

[0004] Some people have also proposed to improve the material of the cutter itself, but the applicant believes that the current technology still has the following technical problems: 1. During the cutter replacement process, the directions of the force application points for disassembling the fixing elements and the rolling cutter are different, making it difficult to apply forces in different directions on one device at the same time. Workpiece rotation is required in the middle, which will reduce the cutter replacement efficiency; 2. Manual cutter picking often easily causes bumps to the rolling cutter, increasing the labor intensity of workers and being disadvantageous to the overall work; 3. Often only the replacement of cutter boxes can be processed one by one, resulting in low overall work efficiency.

[0005] In summary, there are problems in the current technology such as difficult cutter replacement and low replacement efficiency for rolling cutters. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems of difficult cutter replacement and low replacement efficiency for rolling cutters in the existing technology.

[0007] The specific solution of the present invention is as follows: For the cutter box installed on the TBM cutter head, the cutter box includes a rolling cutter, a box body for installing the rolling cutter, and a wedge-shaped positioning device for positioning the rolling cutter. A sliding component is installed at the bottom of the wedge-shaped positioning device. The two extreme working positions of the sliding component respectively include a cutter head clamping position and a cutter head relaxation position away from the cutter head; the wedge-shaped positioning device includes a fixing mechanism with a wedge block and a pressing mechanism with a sliding block; the sliding block is connected to the wedge block through a moving pair, and threaded lifting components are respectively arranged between the sliding component and the wedge block and the sliding block. A kidney-shaped hole is also provided at the bottom of the rolling cutter, including a lifting frame. The lifting frame includes a bottom panel, side panels, and a rear panel. A lifting cable is provided at the top of the lifting frame, a positioning pin is provided at the bottom of the lifting frame, a wedge block operation component for driving the wedge-shaped positioning device to move is installed on the outer side of the lifting frame, and a cutter clamping component for clamping the rolling cutter is provided in the middle of the lifting frame;

[0008] The wedge operation assembly includes a limit lifting device and a screw turning assembly. The limit lifting device includes two sets of jaw sliding cylinder assemblies. The distance between the two jaw sliding cylinder assemblies corresponds to the distance between the wedge-shaped positioning devices on both sides of the hob. A sliding limit mechanism is provided between the jaw sliding cylinder assemblies and the lifting frame. The jaw sliding cylinder assembly is in a ] shape, with a side positioning pin in the middle and a through groove on the other side. The width of the through groove is the same as the width of the sliding component. The positioning pin has the same form and position dimensions as the kidney-shaped hole on the wedge-shaped positioning device. The limit lifting device also includes a screw turning assembly driven by a two-axis manipulator.

[0009] The tool clamping assembly includes a mounting plate slidably installed in the middle of the lifting frame. On the mounting plate, a clamp mechanism for clamping the hob and an adjusting mechanism for adjusting the opening and closing of the clamp mechanism are installed. The clamp mechanism includes a hinge connection head fixed on the mounting plate and bilateral clamps. One end of the clamp is hinge-connected to the hinge connection head, and the other end is suspended. The adjusting mechanism includes a side oil cylinder. One end of the side oil cylinder is fixed to the mounting plate through a hinge connection, and the other end is fixed to the middle of the clamp through a hinge connection.

[0010] During the working process, a telescopic oil cylinder is provided between the mounting plate and the lifting frame.

[0011] In a specific implementation, the top tightening mechanism includes a screw. The sliding block is provided with an internal threaded hole that cooperates with the screw. The other end of the screw is fixed to the sliding component through a set screw nut.

[0012] In a specific implementation, based on the Cartesian coordinate system, the two-axis manipulator includes a slide table with sliding degrees of freedom in the X-axis and Z-axis. The screw turning assembly is installed on the slide table. The X-axis is parallel to the main axis of the threaded lifting component, and the Z-axis is perpendicular to the horizontal plane. The assembly position of the screw turning assembly matches the assembly position of the kidney-shaped hole.

[0013] In a specific implementation, an adjusting hydraulic cylinder is provided between the side oil cylinder and the side panel. Guide posts and guide sleeves are also provided on the side panel and the outer shell of the side oil cylinder.

[0014] The usage method of the TBM quick tool changing tool holder involved includes the following steps:

[0015] (1) Hoisting frame positioning: Determine the tool box to be replaced, and use the hoisting device to translate the hoisting frame to the relevant work station.

[0016] (2) Disassemble the tool box: The oil cylinder assembly extends, the positioning pin on the wedge block operating assembly is clamped into the waist-shaped hole on the tool box, and then the tool box is translated along the waist-shaped hole. The jaw sliding oil cylinder assembly is connected to the sliding member in the form of a sliding pair until the sliding member is within the machining area of the two-axis manipulator. The two-axis manipulator is powered on to rotate the screw lifting member, further realizing the disassembly of the wedge-shaped positioning device;

[0017] (3) Disassemble the hob: The tool box remains fixed in the cutter head. Adjust the position of the lifting frame. The tool clamping assembly is aligned with the tool box after step (2), and the bottom positioning pin corresponds to the position in the pin hole on the box. The clamping mechanism is displaced forward to the corresponding position driven by the side oil cylinder. The adjusting mechanism works, and the clamping mechanism holds the hob. During the retraction of the side oil cylinder, the hob is taken out;

[0018] (4) Replace and install the hob: The side oil cylinder and the clamp are combined to replace the hob. Then the clamping mechanism is displaced forward to the corresponding position driven by the side oil cylinder. The adjusting mechanism works, and the clamping mechanism holds the hob and then relaxes and resets after reaching the tool box;

[0019] (5) Reset the tool box: Adjust the position of the lifting frame. Within the machining area of the two-axis manipulator, with the positioning pin and the jaw sliding oil cylinder assembly fixed, the two-axis manipulator is powered on to rotate the screw lifting member, further realizing the fixation of the wedge-shaped positioning device.

[0020] An adjusting hydraulic cylinder is provided between the side oil cylinder and the side panel, and guide columns and guide sleeves are also provided on the outer shells of the side panel and the side oil cylinder.

[0021] A jet cleaning device is further provided on the inner surface of the side panel of the lifting frame. The jet cleaning device includes a jet element, and the outlet of the jet element is above the clamp.

[0022] The beneficial effects of the present invention are as follows:

[0023] It has a compact structure and small floor area, is convenient for operation in the tool cabin, realizes the pipelined operation of tool withdrawal, tool change, and tool feeding, and has high working efficiency;

[0024] It realizes semi-automation using conventional and reliable components, has good maintainability and high economy. The equipment itself is also easy to repair and maintain, can enter and exit with the construction transport vehicle at any time, can be quickly assembled during use, and can be quickly withdrawn when not in use;

[0025] With modular design, more types of tools can be compatible by replacing the fixture, reducing the overall construction cost;

[0026] The addition of the jet element is proposed for the first time, which can blow and cool the hob, reduce the safety hazards of surrounding construction personnel, and also improve the service life of the equipment;

[0027] The design of the dual-functional work station can enable the simultaneous operation of two work stations, further improving the tool changing efficiency of the equipment;

[0028] The whole set of equipment does not affect the exertion of the advantages of the wedge-shaped block itself. Its advantages are that the interface is simple, easy to use, and can significantly reduce the working intensity of the operator; the integrated design is convenient for transportation and storage, effectively preventing parts from scattering and being lost; the structure is compact, facilitating the clamping and operation of the manipulator;

[0029] In particular, the present invention is suitable for the disassembly, clamping and replacement of multiple hob cutters one by one in groups of two, significantly improving the construction efficiency. Brief Description of the Drawings

[0030] Figure 1 is the front view of the structure of the present invention;

[0031] Figure 2 is the top view of the structure of the present invention;

[0032] Figure 3 is the left view of the structure of the present invention;

[0033] Figure 4 is the right view of the structure of the present invention;

[0034] Figure 5 is the right view of the structure of the present invention;

[0035] Figure 6 is the perspective view of the present invention;

[0036] Figure 7 is the perspective view of the present invention from another angle;

[0037] Figure 8 is the structural schematic diagram of the wedge-shaped positioning device;

[0038] Figure 9 is the top view of another embodiment of the present invention;

[0039] Names of each component in the figure: 1. Tool box; 2. Hob cutter; 3. Sliding component; 4. Wedge-shaped block; 5. Fixed block; 6. Kidney-shaped hole; 7. Screw screwing assembly driven by a two-axis manipulator; 8. Bottom panel; 9. Side panel; 10. Rear panel; 11. Lifting cable; 12. Positioning pin; 13. Claw sliding oil cylinder assembly; 14. Mounting plate; 15. Clamp; 16. Side oil cylinder; 17. Telescopic oil cylinder; 18. Adjusting hydraulic cylinder; 19. Guide post; 20. Air duct of the air jet element. Detailed Embodiment

[0040] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Embodiment 1

[0041] A TBM quick tool changing tool carrier, see Figures 1 to 8 , for the tool box 1 installed on the cutter head of the TBM, the tool box 1 includes a hob 2, a box body for installing the hob 2, and a wedge-shaped positioning device for positioning the hob 2. A sliding member 3 is installed at the bottom of the wedge-shaped positioning device. The two extreme working positions of the sliding member 3 respectively include a cutter head clamping position and a cutter head relaxation position away from the cutter head; the wedge-shaped positioning device includes a fixing mechanism with a wedge block 4 and a pressing mechanism with a sliding block; the sliding block is connected to the wedge block 4 through a moving pair, and threaded lifting components are respectively arranged between the sliding member 3 and the wedge block 4 and the sliding block. A waist-shaped hole 6 is also provided at the bottom of the hob 2. This embodiment includes a lifting frame, and the lifting frame includes a bottom panel 8, side panels 9, and a rear panel 10. A lifting cable 11 is provided at the top of the lifting frame, and a positioning pin 12 is provided at the bottom of the lifting frame. A wedge block operation component for driving the wedge-shaped positioning device to move is installed on the outer side surface of the lifting frame, and a tool clamping component for clamping the hob 2 is provided in the middle of the lifting frame;

[0042] The wedge block operation component includes a limit lifting device and a screw turning component. The limit lifting device includes two sets of jaw sliding oil cylinder components. The distance between the two sets of jaw sliding oil cylinder components corresponds to the distance between the wedge-shaped positioning devices on both sides of the hob 2. A sliding limit mechanism is provided between the jaw sliding oil cylinder components and the lifting frame. The jaw sliding oil cylinder components are in a shape, with a side positioning pin 12 in the middle and a through groove on the other side. The width of the through groove is the same as the width of the sliding member 3; the positioning pin 12 has the same shape and dimension as the waist-shaped hole 6 on the wedge-shaped positioning device. The limit lifting device also includes a screw turning component driven by a two-axis manipulator;

[0043] The tool clamping component includes a mounting plate 14 slidably installed in the middle of the lifting frame. A clamping hoop 15 mechanism for clamping the hob 2 and an adjusting mechanism for adjusting the opening and closing of the clamping hoop 15 are installed on the mounting plate 14; the clamping hoop 15 mechanism includes a hinge support connection head fixed on the mounting plate 14 and bilateral clamping hoops 15. One end of the clamping hoop 15 is hinge-connected to the hinge support connection head, and the other end is suspended; the adjusting mechanism includes a side oil cylinder 16. One end of the side oil cylinder 16 is fixed to the mounting plate 14 through a hinge connection, and the other end is fixed to the middle of the clamping hoop 15 through a hinge connection.

[0044] An expansion oil cylinder 17 is provided between the mounting plate 14 and the lifting frame.

[0045] The pressing mechanism includes a screw. An internal threaded hole matching the screw is provided on the sliding block, and the other end of the screw is fixed on the sliding member 3 via a set screw nut.

[0046] Based on the Cartesian coordinate system, the two-axis manipulator includes a slide table with sliding degrees of freedom in the X-axis and Z-axis. The screw driving assembly is installed on the slide table. The X-axis is parallel to the main shaft of the threaded lifting member, the Z-axis is perpendicular to the horizontal plane, and the assembly position of the screw driving assembly matches the assembly position of the waist-shaped hole 6.

[0047] An adjusting hydraulic cylinder 18 is provided between the side hydraulic cylinder 16 and the side panel 9. Guide posts 19 and guide sleeves are also provided on the outer shells of the side panel 9 and the side hydraulic cylinder 16.

[0048] The using method of the TBM quick tool-changing tool holder includes the following steps:

[0049] (1) Hoisting frame positioning: Determine the tool box 1 to be replaced, and use the hoisting device to translate the hoisting frame to the relevant working station.

[0050] (2) Disassembling the tool box 1: The oil cylinder assembly extends, the positioning pin 12 on the wedge block operating assembly is clamped into the waist-shaped hole 6 on the tool box 1, and then the tool box 1 is translated along the waist-shaped hole 6. The clamping jaw sliding oil cylinder assembly is connected to the sliding member 3 in the form of a sliding pair until the sliding member 3 is within the machining area of the two-axis manipulator. The two-axis manipulator is powered on to rotate the threaded lifting member, further realizing the disassembly of the wedge-shaped positioning device.

[0051] (3) Disassembling the hob 2: The tool box 1 remains fixed in the cutter head. Adjust the position of the hoisting frame so that the tool clamping assembly is facing the tool box 1 after step (2), and the bottom positioning pin 12 corresponds to the position in the pin hole on the box. The clamp 15 mechanism moves forward to the corresponding position driven by the side hydraulic cylinder 16. The adjusting mechanism works, and the clamp 15 mechanism holds the hob 2. During the return process of the side hydraulic cylinder 16, the hob 2 is taken out.

[0052] (4) Replacing and installing the hob 2: The side hydraulic cylinder 16 and the clamp 15 are combined to replace the hob 2. Then the clamp 15 mechanism moves forward to the corresponding position driven by the side hydraulic cylinder 16. The adjusting mechanism works, and the clamp 15 mechanism holds the hob 2 and then relaxes and resets after reaching the tool box 1.

[0053] (5) Resetting the tool box 1: Adjust the position of the hoisting frame. Within the machining area of the two-axis manipulator, with the positioning pin 12 and the clamping jaw sliding oil cylinder assembly fixed, the two-axis manipulator is powered on to rotate the threaded lifting member, further realizing the fixation of the wedge-shaped positioning device.

[0054] An adjustment hydraulic cylinder 18 is provided between the side hydraulic cylinder 16 and the side panel 9, and guide posts 19 and guide sleeves are also provided on the outer shells of the side panel 9 and the side hydraulic cylinder 16. During the process of removing the constraint, the principle of the deformation wedge block assembly: by rotating the transmission screw rod, the shape of the sliding deformation assembly is changed, and finally the operations of wedging and loosening between the hob 2 and the tool box 1 can be realized. At the same time, a limit is set in the structure to prevent them from completely disengaging from each other. Among them, the principle of the tightening mechanism is: mainly composed of three sliders that can slide relative to each other, and through the cooperation of the transmission screw rod and the screw spring, its own shape can be changed to realize the operations of wedging and loosening between the hob 2 and the tool box 1.

[0055] The principle of the fixing mechanism is: one end is clamped into the slider in the sliding deformation assembly that contacts the tool shaft of the hob 2, and the other end passes through the pressing block of the tool box 1 and is locked by the connecting rod spring and the locking nut. It can play a role in stabilizing the sliding deformation assembly, and can also be adapted to different hobs 2 and tool boxes 1 by adjusting the locking nut.

[0056] During the disassembly process, the two-axis manipulator is driven and can move in the horizontal and vertical directions. There is a screw sleeve at the front end of the screw turning assembly, and the screw in the threaded lifting component on the deformation wedge block can be turned by driving the motor at the rear end.

[0057] In the specific working process, 1. Control the hinge through the stepping motor to lower the lifting frame by hoisting; 2. Position the lifting frame side wedge block operating component with the tool box 1 through the pin hole matching method and the elongation of the relevant hydraulic cylinders; 3. The positioning pin 12 is limited and horizontally moved in the kidney-shaped hole 6 until the position of the tool box 1 is within the working area of the manipulator. Remove the deformation wedge block assembly through the manipulator on the side of the lifting frame, and the hob 2 no longer has position constraints; 4. Adjust the position of the lifting frame so that the front working position of the lifting frame corresponds to the rear of the hob 2 to be disassembled. Clamp through the front-end hydraulic claw of the equipment to form an adjustable hoop connection, hold the old tool and take it out of the tool box 1; 5. Control the tool changing equipment to the specified position through the stepping motor, remove the old tool and replace it with a new tool; 6. After repeating the positioning operation with the tool box 1, install the new hob 2 into the tool box 1; 7. Control the wedge block operating component through the manipulator on the side of the lifting frame, install the deformation wedge block assembly and wedge it tightly; 8. Repeat the above steps to continuously perform the tool changing operation and remove all the hobs 2 to be disassembled as expected; 9. After the tool changing is completed, retract the tool changing equipment. Embodiment 2

[0058] In this embodiment, a jet cleaning device is further provided on the inner surface of the side panel 9 of the lifting frame. The jet cleaning device includes a jet element, and the outlet of the jet element is located above the clamp. This facilitates further cleaning of the tool. The jet element is a common device and is not shown in the drawings. In this embodiment, for the first time, a jetting step is introduced during the tool change process, and tool cleaning is proposed for the first time. During the cleaning process, the newly removed hob 2 is also cooled, extending the working life of the hob 2 and the lifting frame.

[0059] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A TBM quick tool-changing tool rest, aiming at the tool box (1) installed on the cutter head of the TBM. The tool box (1) includes a hob (2), a box body for installing the hob (2), and a wedge-shaped positioning device for positioning the hob (2). A sliding component (3) is installed at the bottom of the wedge-shaped positioning device. The two extreme working positions of the sliding component (3) respectively include a cutter head clamping working position and a cutter head relaxation working position away from the cutter head; the wedge-shaped positioning device includes a fixing mechanism with a wedge block (4) and a pressing mechanism with a sliding block; the sliding block is connected to the wedge block (4) through a moving pair, and a threaded lifting component is provided between the sliding component (3) and the wedge block (4) and the sliding block respectively. A kidney-shaped hole (6) is further provided at the bottom of the tool seat of the hob (2), and it is characterized in that: The tool changing turret includes a hoisting frame, and the hoisting frame includes a bottom panel (8), side panels (9), and a rear panel (10). A hoisting cable (11) is provided at the top of the hoisting frame, and a positioning pin (12) is provided at the bottom of the hoisting frame. A wedge operation assembly for driving the wedge positioning device to move is installed on the outer side of the hoisting frame, and a tool clamping assembly for clamping the hob (2) is provided in the middle of the hoisting frame; The wedge operation assembly includes a limit lifting device and a screw turning assembly. The limit lifting device includes two sets of jaw sliding cylinder assemblies. The distance between the jaw sliding cylinder assemblies corresponds to the distance between the wedge positioning devices on both sides of the hob (2). A sliding limit mechanism is provided between the jaw sliding cylinder assemblies and the hoisting frame. The jaw sliding cylinder assembly is in a ] shape, with a side positioning pin (12) provided in the middle and a through slot provided on the other side. The width of the through slot is the same as the width of the sliding member (3); the positioning pin (12) has the same form and position dimensions as the waist-shaped hole (6) on the wedge positioning device. Adjacent to the limit lifting device, there is also a screw turning assembly driven by a two-axis manipulator; The tool clamping assembly includes a mounting plate (14) slidably installed in the middle of the hoisting frame. A clamp (15) mechanism for clamping the hob (2) and an adjustment mechanism for adjusting the opening and closing of the clamp (15) mechanism are installed on the mounting plate (14); the clamp (15) mechanism includes a hinge support connection head fixed on the mounting plate (14) and bilateral clamps (15). One end of the clamp (15) is hinge-connected to the hinge support connection head, and the other end is suspended; the adjustment mechanism includes a side cylinder (16). One end of the side cylinder (16) is fixed to the mounting plate (14) through a hinge connection, and the other end is fixed to the middle of the clamp (15) through a hinge connection.

2. The TBM quick tool-changing tool rest according to claim 1, characterized in that: An expansion cylinder (17) is provided between the mounting plate (14) and the hoisting frame.

3. The TBM quick tool changing tool rest according to claim 1, characterized in that: The top tightening mechanism includes a screw. The sliding block is provided with an internal thread hole matching the screw, and the other end of the screw is fixed to the sliding member (3) through a set screw nut.

4. The TBM quick tool changing tool rest according to claim 1, characterized in that: Based on the Cartesian coordinate system, the two-axis manipulator includes a slide table with sliding degrees of freedom in the X-axis and Z-axis. The screw turning assembly is installed on the slide table. The X-axis is parallel to the main shaft of the threaded lifting member, and the Z-axis is perpendicular to the horizontal plane. The assembly position of the screw turning assembly matches the assembly position of the waist-shaped hole (6).

5. The TBM quick tool changing tool rest according to claim 4, characterized in that: An adjustment hydraulic cylinder (18) is provided between the side cylinder (16) and the side panel (9). Guide columns (19) and guide sleeves are also provided on the outer shells of the side panel (9) and the side cylinder (16).

6. The method for using the cutter head of the TBM rapid tool changing tool rest according to claim 1, characterized in that, It includes the following steps: (1) Hoisting frame positioning: Determine the tool magazine (1) to be replaced, and use a lifting device to translate the hoisting frame to the relevant work station; (2) Disassemble the tool box (1): The oil cylinder assembly extends, the positioning pin (12) on the wedge block operating assembly is clamped into the kidney-shaped hole (6) on the tool box (1), and then the tool box (1) is translated along the kidney-shaped hole (6). The jaw sliding assembly is connected to the sliding member (3) in the form of a sliding pair until the sliding member (3) is within the machining area of the two-axis manipulator. The two-axis manipulator is powered on to rotate the screw lifting member, and further disassemble the wedge-shaped positioning device; (3) Disassemble the hob (2): The tool box (1) remains fixed in the cutter head. Adjust the position of the lifting frame. The tool clamping assembly is aligned with the tool box (1) after step (2). The bottom positioning pin (12) corresponds to the position in the pin hole on the box. The clamp (15) mechanism is displaced forward to the corresponding position driven by the side oil cylinder (16). The adjusting mechanism works, and the clamp (15) mechanism holds the hob (2). During the retraction of the side oil cylinder (16), the hob (2) is taken out; (4) Replace and install the hob (2): The side oil cylinder (16) and the clamp (15) are combined to replace the hob (2). Then the clamp (15) mechanism is displaced forward to the corresponding position driven by the side oil cylinder (16). The adjusting mechanism works, and the clamp (15) mechanism holds the hob (2) until it is released and reset after reaching the tool box (1); (5) Reset the tool box (1): Adjust the position of the lifting frame. Fixed by the positioning pin (12) and the jaw sliding assembly, within the machining area of the two-axis manipulator, the two-axis manipulator is powered on to rotate the screw lifting member, and further fix the wedge-shaped positioning device.

7. The method for using the cutter head of the TBM for rapid cutter changing according to claim 6, characterized in that: An adjusting hydraulic cylinder (18) is provided between the side oil cylinder (16) and the side panel (9). Guide columns (19) and guide sleeves are also provided on the outer shells of the side panel (9) and the side oil cylinder (16).

8. The method for using the cutter head of the TBM for rapid cutter changing according to claim 6, characterized in that: A jet cleaning device is further provided on the inner surface of the side panel (9) of the lifting frame. The jet cleaning device includes a jet element, and the outlet of the jet element is above the clamp.

Citation Information

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