Multi-station surfacing tool equipment for shield cutter

Abstract

The utility model relates to the related technical field of shield cutter machining, in particular to shield cutter multi-station surfacing tool equipment which comprises a device base. The welding arms are arranged on the device base, and the number of the welding arms is two; the welding gun is detachably arranged at the end part of the welding arm and is used for performing surfacing on the shield cutter; the rotary machining table is rotationally arranged on the device base; in the surfacing welding device, the positioning pin is pulled out in the surfacing welding process, then the supporting rod is adjusted to rotate around the fixing shaft, the visor shields dazzling light generated in the surfacing welding process, then the positioning pin is inserted into the positioning hole to lock the angle of the visor, it is ensured that the operation view is clear and interference of the dazzling light is avoided, and meanwhile the negative pressure fan is started; smoke dust is captured through the air suction cover at the tail end of the dust suction pipe and guided into the dust collection box to be treated in a centralized mode, harmful substances are prevented from being diffused to affect the body health of workers, and the problems in the prior art are solved.

Description

A multi-station welding fixture for tunnel boring machine cutters Technical Field

[0001] This utility model relates to the field of shield tunneling tool processing technology, and in particular to a multi-station welding fixture for shield tunneling tools. Background Technology

[0002] A tunnel boring machine (TBM) is a type of tunnel construction equipment widely used in railway, highway, and subway tunnel construction. The cutterhead of the TBM is located at the front end of the TBM and acts as the machine's teeth. It excavates the tunnel as the cutterhead rotates and is the main tool for cutting rock and soil. When the TBM is excavating soil layers with a lot of rock, it needs to be equipped with more roller cutters on the cutterhead to facilitate rapid rock breaking.

[0003] As an economical and rapid process for material surface modification, welding is increasingly being used in the manufacturing and repair of parts in various industrial sectors.

[0004] In existing technologies, specialized welding fixtures are widely used in the production of tunnel boring machine (TBM) cutters, or when the cutters need maintenance and repair after a period of use. These welding fixtures can accurately position and fix the cutters, and provide appropriate welding process parameters to ensure the quality and uniformity of the weld layer, thereby meeting the performance requirements of TBM cutters in practical applications.

[0005] However, during operation, the shield tunneling cutter will generate a lot of dust or fumes when it is welded using welding equipment. If workers inhale these dust or fumes, it can easily affect their health. At the same time, the dust generated during welding can produce glaring light, which can easily cause eye injuries. Summary of the Invention

[0006] The purpose of this utility model is to provide a multi-station welding fixture for tunnel boring machine cutters to solve the problems mentioned in the background art.

[0007] The technical solution adopted in this utility model is:

[0008] A multi-station welding fixture for tunnel boring machine cutters includes:

[0009] Device base; welding arms, two welding arms are mounted on the device base; welding torch, detachably mounted at the end of the welding arms, used for welding shield cutters; rotary processing table, rotatably mounted on the device base;

[0010] A negative pressure suction assembly is installed on one side of the rotary processing table to extract fumes and dust generated during welding.

[0011] A shielding component, located at the front end of the device base, is used to shield the light generated during welding.

[0012] Optionally, the rotary processing table is connected to the base of the device via a drive motor, enabling the adjustment of the welding position of the cutting tool by rotation.

[0013] Optionally, the negative pressure suction assembly includes:

[0014] A negative pressure fan is installed on one side of the rotary processing table;

[0015] The suction pipe is installed at the suction end of the negative pressure fan.

[0016] Optionally, the negative pressure suction assembly also includes:

[0017] A suction hood is installed at one end of the suction pipe, with the suction port of the suction hood facing the rotary processing table;

[0018] A dust collection box is installed at the dust discharge end of the negative pressure fan.

[0019] Optionally, the occlusion component includes:

[0020] A fixing block is disposed at the front end of the base of the device;

[0021] A fixed shaft is disposed between the fixed blocks;

[0022] The support rod is rotatably sleeved on the outer end of the fixed shaft;

[0023] A light shield, located at the end of the support rod, is used to block the light generated during welding.

[0024] Optionally, the shading component further includes:

[0025] Positioning holes are provided on the fixing block and the support rod;

[0026] A locating pin is inserted through the inside of the locating hole, and the size of the locating pin matches the size of the locating hole.

[0027] Optional, including:

[0028] A mounting slot is provided at the upper end of the rotary machining table; a bidirectional lead screw is provided inside the mounting slot.

[0029] A drive motor is located at one end of the bidirectional lead screw, and the bidirectional lead screw is driven by the drive motor.

[0030] Optional, including:

[0031] Two sliding screw blocks are provided at the outer end of the bidirectional lead screw and are respectively threaded to opposite ends of the bidirectional lead screw; a tool limiting plate is provided at the upper end of the sliding screw blocks.

[0032] Compared with the prior art, the beneficial effects of this utility model are:

[0033] During use, the shield tunneling cutter is fixed on a rotary processing table. Two welding arms move the welding torch to a preset position for welding. During the welding process, the positioning pin is pulled out, and then the support rod is adjusted to rotate around the fixed axis so that the light shield blocks the glare generated during welding. Then, the positioning pin is inserted into the positioning hole to lock the angle of the light shield, ensuring a clear operating field of vision without glare interference. At the same time, the negative pressure fan is started, and the dust is captured by the suction hood at the end of the dust suction pipe and guided into the dust collection box for centralized treatment, avoiding the spread of harmful substances that may affect the health of workers and solving the problems in the existing technology. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 is a schematic diagram of the main structure in this application;

[0036] Figure 2 is a schematic diagram of the structure when the shielding component in this application is open;

[0037] Figure 3 is a schematic diagram of the negative pressure suction component in this application;

[0038] Figure 4 is a schematic diagram of the rotary machining table structure in this application;

[0039] Figure 5 is a schematic diagram of the shielding component structure in this application.

[0040] Figure label:

[0041] 1. Device base; 2. Welding arm; 3. Welding torch; 4. Rotary machining table;

[0042] 5. Negative pressure suction assembly; 501. Negative pressure fan; 502. Suction pipe; 503. Suction hood; 504. Dust collection box;

[0043] 6. Shielding assembly; 601. Fixing block; 602. Fixing shaft; 603. Support rod; 604. Light-shielding plate; 605. Positioning hole; 606. Positioning pin;

[0044] 7. Mounting slot; 8. Two-way lead screw; 9. Drive motor; 10. Sliding screw block; 11. Tool limit plate; Detailed Implementation

[0045] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to 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 utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] Given that the existing technology generates a lot of dust or fumes when shield tunneling cutters are welded using welding equipment, workers are likely to suffer health problems if they inhale these dust or fumes. At the same time, the dust generated during welding can cause eye injuries.

[0048] As shown in Figures 1-5, a multi-station welding fixture for tunnel boring machine (TBM) cutters includes a device base 1; two welding arms 2 are mounted on the device base 1; a welding torch 3 is detachably mounted at the end of the welding arms 2 for welding the TBM cutters; a rotary processing table 4 is rotatably mounted on the device base 1; a negative pressure suction assembly 5 is mounted on one side of the rotary processing table 4 for absorbing fumes and dust generated during welding; and a shielding assembly 6 is mounted at the front end of the device base 1 for shielding the light generated during welding.

[0049] Furthermore, the rotary processing table 4 is connected to the device base 1 via a drive motor, enabling the rotational adjustment of the tool's welding position. The rotary processing table 4 can perform welding by rotating and adjusting the tool's position.

[0050] Furthermore, the negative pressure suction assembly 5 includes a negative pressure fan 501, which is disposed on one side of the rotary processing table 4; a dust suction pipe 502 is disposed at the suction end of the negative pressure fan 501, and the negative pressure fan 501 can generate suction.

[0051] Furthermore, the negative pressure suction assembly 5 also includes a suction hood 503, which is disposed at one end of the dust suction pipe 502, with the suction port of the suction hood 503 facing the rotary processing table 4; the dust collection box 504 is disposed at the dust discharge end of the negative pressure fan 501, and the suction hood 503 can be used to suck away the smoke and dust and discharge it into the dust collection box 504 for storage.

[0052] Furthermore, the shielding assembly 6 includes a fixing block 601 disposed at the front end of the device base 1; a fixing shaft 602 disposed between the fixing blocks 601; a support rod 603 rotatably sleeved on the outer end of the fixing shaft 602; and a light shield 604 disposed at the end of the support rod 603 for shielding the light generated during welding.

[0053] Furthermore, the shielding component 6 also includes a positioning hole 605, which is disposed on the fixing block 601 and the support rod 603; a positioning pin 606 passes through the interior of the positioning hole 605, and the size of the positioning pin 606 matches the size of the positioning hole 605. By passing the positioning pin 606 through the positioning hole 605 on the fixing block 601 and the support rod 603 in sequence, the position of the light shield 604 can be fixed.

[0054] Furthermore, the mounting groove 7 is disposed at the upper end of the rotary processing table 4; the bidirectional lead screw 8 is disposed inside the mounting groove 7; and the drive motor 9 is disposed at one end of the bidirectional lead screw 8, which is driven by the drive motor 9.

[0055] Furthermore, the sliding screw block 10 is disposed at the outer end of the bidirectional lead screw 8, and there are two sliding screw blocks 10, which are respectively threaded to the opposite ends of the bidirectional lead screw 8; the cutter limiting plate 11 is disposed at the upper end of the sliding screw block 10, and the rotation of the bidirectional lead screw 8 can drive the two sliding screw blocks 10 to move in opposite directions, thereby driving the cutter limiting plate 11 to clamp the shield cutter, which facilitates the welding operation.

[0056] During use, the shield cutter is placed on the rotary processing table 4, and then the drive motor 9 is started. The drive motor 9 drives the bidirectional lead screw 8 to rotate. The rotation of the bidirectional lead screw 8 can drive the two sliding screw blocks 10 to move in opposite directions, thereby driving the cutter limit plate 11 to clamp the shield cutter, which facilitates the surfacing welding operation. Then, the welding gun 3 is moved to the preset position by the two welding arms 2 and surfacing welding is performed. During the surfacing welding process, the positioning pin 606 is pulled out, and then the support rod 603 is adjusted to rotate around the fixed axis 602 so that the light shield 604 blocks the glare generated during surfacing welding. Then, the positioning pin 606 is inserted into the positioning hole 605 to lock the angle of the light shield 604, ensuring a clear operating field of vision without glare interference. At the same time, the negative pressure fan 501 is started, and the smoke and dust are captured by the suction hood 503 at the end of the dust suction pipe 502 and introduced into the dust collection box 504 for centralized treatment to prevent the spread of harmful substances from affecting the health of workers. Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 utility model should be included within the protection scope of this utility model.

Claims

1. A multi-station welding fixture for tunnel boring machine cutters, characterized in that, include: Device base; Welding arms, two of which are mounted on the device base; welding torch, detachably mounted at the end of the welding arms, used for welding shield cutters. A rotary processing table is rotatably mounted on the base of the device; a negative pressure suction assembly is located on one side of the rotary processing table to extract fumes and dust generated during welding; and a shielding assembly is located at the front end of the base of the device to shield the light generated during welding.

2. The tooling equipment according to claim 1, characterized in that, The rotary processing table is connected to the base of the device via a drive motor, enabling the adjustment of the welding position of the cutting tool by rotation.

3. The tooling equipment according to claim 1, characterized in that, The negative pressure suction assembly includes: a negative pressure fan, disposed on one side of the rotary processing table; and a suction pipe, disposed at the suction end of the negative pressure fan.

4. The tooling equipment according to claim 3, characterized in that, The negative pressure suction assembly further includes: a suction hood, disposed at one end of the suction pipe, with the suction port of the suction hood facing the rotary processing table; and a dust collection box, disposed at the dust discharge end of the negative pressure fan.

5. The tooling equipment according to claim 1, characterized in that, The shielding assembly includes: a fixing block disposed at the front end of the device base; a fixing shaft disposed between the fixing blocks; a support rod rotatably sleeved on the outer end of the fixing shaft; and a light-shielding plate disposed at the end of the support rod for shielding the light generated during welding.

6. The tooling equipment according to claim 5, characterized in that, The shielding assembly further includes: a positioning hole disposed on the fixing block and the support rod; and a positioning pin that passes through and is connected inside the positioning hole, the size of the positioning pin matching the size of the positioning hole.

7. The tooling equipment according to claim 1, characterized in that, Includes: a mounting groove disposed at the upper end of the rotary machining table; and a bidirectional lead screw disposed inside the mounting groove. A drive motor is located at one end of the bidirectional lead screw, and the bidirectional lead screw is driven by the drive motor.

8. The tooling equipment according to claim 6, characterized in that, include: Two sliding screw blocks are provided at the outer end of the bidirectional lead screw and are respectively threaded to opposite ends of the bidirectional lead screw; a tool limiting plate is provided at the upper end of the sliding screw blocks.

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