Cutter sealing gate plate copper welding fixing device

Abstract

The utility model belongs to the technical field of flashboard copper welding fixing devices, and particularly relates to a cutter sealing gate flashboard copper welding fixing device which comprises a base, the base is fixedly connected with a welding positioner, and a lower fixing plate is transversely welded to the center of the surface of the front side of the base. Front pressing blocks are symmetrically installed at the two ends of the surface of one side of the lower fixing plate through bolts, a center pressing block is installed at the center of the surface of one side of the lower fixing plate through bolts, positioning grooves are symmetrically formed in the surface of one side of the lower fixing plate, and the two positioning grooves are formed between the front pressing blocks and the center pressing block correspondingly. Two station positioning grooves are machined in the lower fixing plate to achieve rapid positioning of the flashboard, the side face of the flashboard is limited through the center pressing block and the front pressing block so as to guarantee the welding precision of the flashboard, the flashboard can be extruded and fixed by rotating the extrusion screw, and the other side of the flashboard is fixed through the movable pressing plate. And meanwhile, the movable pressing plate can be rapidly pressed or returned, and the movable pressing plate tends to be in a vertical state during returning.

Description

Technical Field

[0001] This utility model belongs to the technical field of gate plate copper welding and fixing device, specifically relating to a gate plate copper welding and fixing device for a cutter sealing gate. Background Technology

[0002] The gate plates of sealing gates used on tunnel boring machines (TBMs) are typically rectangular or circular, depending on the design and usage requirements of the TBM. For example, some small TBMs may use circular gate plates, while large TBMs often use rectangular gate plates to accommodate larger diameters and sealing requirements. Some gate plates are designed with wedge-shaped surface structures. For instance, the sealing gate body of an intelligent TBM has a pressing wedge-shaped surface structure, which, in conjunction with the supporting wedge-shaped surface structure on the gate frame, achieves better sealing and pressure resistance when the gate is closed.

[0003] In existing technologies, the gate plates of sealing gates used on tunnel boring machines require copper welding before precision machining. The welding process is demanding, as incomplete fusion and porosity between the copper and the base material can occur. Furthermore, the welding process often uses threaded clamping for fixation, which results in the clamping plate being positioned above the gate plate, hindering rapid installation and removal of the gate plate from the clamping system. Welding speed is limited, leading to numerous rework operations and requiring high weld strength. Simultaneously, the large number of gate plates makes it difficult to complete welding tasks on time and with high quality, and it's not possible to effectively reduce rework, resulting in increased costs and delivery delays. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a copper welding fixing device for the gate plate of the cutter sealing gate, which can effectively fix the gate plate during welding and improve the convenience of installation or disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A copper welding and fixing device for a cutter-sealed gate plate includes a base, which is connected and fixed to a welding positioner. A lower fixing plate is horizontally welded to the center of the front surface of the base. Front clamping blocks are symmetrically installed at both ends of one side surface of the lower fixing plate by bolts. A central pressure block is installed at the center of one side surface of the lower fixing plate by bolts. Positioning grooves are symmetrically opened on one side surface of the lower fixing plate, and the two positioning grooves are respectively placed between the front clamping block and the central pressure block. The front clamping block has an L-shaped cross-section. A pressing screw is vertically screwed through the upper surface of the front clamping block. The bottom of the pressing screw presses and fixes one side of the gate plate. A locking handle is provided at the end of the pressing screw. Protrusions are symmetrically opened on the upper surface of the central pressure block. Movable pressure plates are symmetrically rotated and installed between the two protrusions. The two movable pressure plates extend beyond the side surface of the central pressure block. A pressing protrusion is provided below the opposite end of the two movable pressure plates, and the pressing protrusion presses and fixes the other side of the gate plate.

[0007] Furthermore, a C-shaped toothed ring is welded to one end of each movable pressure plate that is close to the other, and the C-shaped toothed ring is concentric with the rotation axis of the movable pressure plate.

[0008] Furthermore, a control slide rod is vertically slidably mounted on the center of the surface of the central pressure block. The control slide rod passes through the central pressure block and the lower fixed plate. The control slide rod is positioned between the two movable pressure plates. A bidirectional toothed block is rotatably mounted on the surface of the control slide rod. The bidirectional toothed block meshes with the C-shaped toothed rings on both sides respectively.

[0009] Furthermore, a knob is provided on the top of the control slider.

[0010] Furthermore, a mounting hole is provided at the center of the lower surface of the lower fixing plate, the bottom of the control slide rod passes through the mounting hole, an internal thread is provided inside the mounting hole at the bottom, and a threaded bolt head is provided at the bottom of the control slide rod, the threaded bolt head corresponding to the internal thread of the mounting hole.

[0011] Furthermore, a spring is sleeved below the surface of the control slide rod, the spring is placed inside the mounting hole, and the bottom of the spring contacts the upper surface of the threaded bolt head.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the gate plate is quickly positioned by machining two positioning slots on the lower fixed plate; the side of the gate plate is limited by the central pressure block and the front clamping block to ensure the accuracy of welding; the gate plate can be pressed and fixed by rotating the extrusion screw, and the other side is fixed by the movable pressure plate. At the same time, the movable pressure plate can be quickly pressed or returned to its original position. When returning to its original position, the movable pressure plate tends to be in a vertical state so that there are no obstacles on the gate plate, thereby improving the convenience of gate plate installation or disassembly and improving welding efficiency.

[0013] The dual-station design can further improve welding efficiency. After welding on one side is completed, the other side can be welded after rotating 180 degrees, thereby reducing the frequency of disassembly, ensuring the stability of the gate and fixture installation, and improving welding accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model in the clamped state;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention in the relaxed state;

[0016] Figure 3 For the present utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0017] Figure 4 This is a schematic diagram of the installation structure of the control slide bar and movable pressure plate of this utility model;

[0018] Figure 5 For the present utility model Figure 3 A magnified structural diagram of area A.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Base; 2. Lower fixing plate; 21. Positioning groove; 3. Front clamping block; 4. Extrusion screw; 41. Locking handle; 5. Center pressure block; 51. Protruding plate; 52. Mounting hole; 6. Movable pressure plate; 61. Clamping protrusion; 62. C-shaped toothed ring; 7. Control slide rod; 71. Knob; 72. Threaded bolt head; 8. Bidirectional toothed block; 9. Spring. Detailed Implementation

[0021] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0022] refer to Figures 1-4As shown, a copper welding and fixing device for a cutter-sealed gate includes a base 1, which is connected and fixed to a welding positioner so that it can rotate 180 degrees after welding on one side. A lower fixing plate 2 is horizontally welded to the center of the front surface of the base 1. Front clamping blocks 3 are symmetrically installed at both ends of one side surface of the lower fixing plate 2 by bolts. A center pressure block 5 is installed at the center of one side surface of the lower fixing plate 2 by bolts. The front clamping blocks 3 and the center pressure block 5 limit the movement of the gate on both sides to ensure the installation accuracy of the gate. Two positioning grooves 21 are symmetrically opened on one side surface of the lower fixing plate 2, and the two positioning grooves 21 are respectively placed on the front clamping block 3 and the center pressure block 5. To further ensure the gate's installation position, the front clamping block 3 has an L-shaped cross-section. A pressing screw 4 is vertically screwed through the upper surface of the front clamping block 3. The bottom of the pressing screw 4 presses and fixes one side of the gate to achieve initial pressing and fixing. A locking handle 41 is provided at the end of the pressing screw 4. A symmetrically arranged protruding plate 51 is provided on the upper surface of the central clamping block 5. A movable pressure plate 6 is symmetrically rotated between the two protruding plates 51. The two movable pressure plates 6 extend beyond the side surface of the central clamping block 5. A pressing protrusion 61 is provided below the opposite end of the two movable pressure plates 6. The pressing protrusion 61 presses and fixes the other side of the gate to ensure the stability of the gate welding.

[0023] refer to Figure 4 As shown, a C-shaped toothed ring 62 is welded to one end of the movable pressure plate 6 that is close to each other. The C-shaped toothed ring 62 is concentric with the rotation axis of the movable pressure plate 6. The angle of the movable pressure plate 6 is controlled by controlling the rotation of the C-shaped toothed ring 62.

[0024] refer to Figure 4 and Figure 5 As shown, a control slide rod 7 is vertically slidably mounted on the center of the surface of the central pressure block 5. The control slide rod 7 passes through the central pressure block 5 and the lower fixed plate 2. The control slide rod 7 is positioned between the two movable pressure plates 6. A bidirectional toothed block 8 is rotatably mounted on the surface of the control slide rod 7. The bidirectional toothed block 8 consists of two separate modules assembled by bolts to facilitate its installation with the control slide rod 7. This allows the bidirectional toothed block 8 and the control slide rod 7 to rotate but not slide axially. The bidirectional toothed block 8 meshes with the C-shaped toothed rings 62 on both sides, so that the angle of the two movable pressure plates 6 can be controlled simultaneously by controlling the height of the bidirectional toothed block 8.

[0025] The top of the control slide 7 is equipped with a knob 71, which facilitates the operation of pulling or rotating the control slide 7.

[0026] refer to Figure 3 and Figure 5As shown, a mounting hole 52 is provided at the center of the lower surface of the lower fixed plate 2. The bottom of the control slide rod 7 passes through the mounting hole 52. An internal thread is provided inside the mounting hole 52. A threaded bolt head 72 is provided at the bottom of the control slide rod 7. The threaded bolt head 72 corresponds to the internal thread of the mounting hole 52. During installation, the control slide rod 7 is first pulled up so that the two movable pressure plates 6 can quickly rotate downward to cover the gate plate and move the threaded bolt head 72 upward to the inside of the mounting hole 52. Then, the control slide rod 7 is rotated so that the threaded bolt head 72 is slowly screwed upward into the internal thread cylinder to increase the clamping force of the movable pressure plate 6 on the gate plate.

[0027] Among them, a spring 9 is sleeved below the surface of the control slide rod 7. The spring 9 is placed inside the mounting hole 52. The bottom of the spring 9 is in contact with the upper surface of the threaded bolt head 72. Before installing the gate, the spring 9 can make the bidirectional tooth block 8 place at the bottom of the stroke, and then make the movable pressure plates 6 on both sides tilt upward and be vertical, so that there are no obstacles above the positioning groove 21, which facilitates the installation of the gate.

[0028] Conversely, when it is necessary to disassemble the welded gate, the threaded bolt head 72 can be unscrewed out of the mounting hole 52 to release the pressure on the gate. Then, the movable pressure plate 6 can be quickly lifted using the spring 9 for easy disassembly.

[0029] The working principle of this utility model is as follows: First, the base 1 is installed on the welding positioner. Then, the gate plate to be welded is installed inside the two positioning slots 21, the width of which is the same as the gate plate. After initial installation, the locking handle 41 drives the extrusion screw 4 to rotate, thereby causing the end of the extrusion screw 4 to press and fix the gate plate. Due to the presence of the spring 9, the threaded bolt head 72 always has a downward force. Therefore, when not under force control, the sliding rod 7 and the bidirectional toothed block 8 are both positioned at the bottom. Through the meshing of the bidirectional toothed block 8 and the C-shaped toothed ring 62, the two... The movable pressure plate 6 is tilted upwards to make it more vertical, so as to facilitate the installation of the gate. Conversely, after the gate is initially installed, the control slide rod 7 can be pulled up by the knob 71 to make the two movable pressure plates 6 rotate quickly to a horizontal state through the meshing of the bidirectional toothed block 8 and the C-shaped toothed ring 62. At this time, the threaded bolt head 72 enters into the mounting hole 52. Rotating the knob 71 can drive the threaded bolt head 72 to rotate. The threaded bolt head 72 engages with the internal thread at the bottom of the mounting hole 52 to slowly control the squeezing force of the pressing protrusion 61 on the gate, thereby ensuring the stability of the gate during welding.

[0030] After welding one side, rotate 180° to weld the other side. When welding is complete, the gate needs to be disassembled. At this time, turn the knob 71 in the opposite direction so that the threaded head 72 gradually rotates downward beyond the mounting hole 52, releasing the pressure of the clamping protrusion 61 on the gate. At this time, the spring 9 can push the threaded head 72 to move downward quickly so that the clamping protrusions 61 on both sides can quickly flip upward to provide sufficient space for disassembling the gate.

[0031] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A copper welding fixing device for a cutter sealing gate plate, comprising a base (1), characterized in that: The base (1) is connected and fixed to the welding positioner. A lower fixing plate (2) is horizontally welded to the center of the front surface of the base (1). Front clamping blocks (3) are symmetrically installed at both ends of one side surface of the lower fixing plate (2) by bolts. A center clamping block (5) is installed at the center of one side surface of the lower fixing plate (2) by bolts. Positioning grooves (21) are symmetrically opened on one side surface of the lower fixing plate (2). The two positioning grooves (21) are respectively placed between the front clamping block (3) and the center clamping block (5). The front clamping block (3) has an L-shaped cross section. The upper surface of the front clamping block (3) A pressing screw (4) is vertically screwed through the gate. The bottom of the pressing screw (4) presses and fixes one side of the gate. A locking handle (41) is provided at the end of the pressing screw (4). A convex plate (51) is symmetrically arranged on the upper surface of the central pressure block (5). A movable pressure plate (6) is symmetrically rotated between the two convex plates (51). The two movable pressure plates (6) extend beyond the side surface of the central pressure block (5). A pressing ridge (61) is provided below the opposite end of the two movable pressure plates (6). The pressing ridge (61) presses and fixes the other side of the gate.

2. The copper welding and fixing device for the gate plate of the cutting seal gate according to claim 1, characterized in that: A C-shaped toothed ring (62) is welded to one end of each of the movable pressure plates (6) that are close to each other. The C-shaped toothed ring (62) is concentric with the rotation axis of the movable pressure plate (6).

3. The copper welding and fixing device for the gate plate of the cutting seal gate according to claim 2, characterized in that: A control slide rod (7) is vertically slidably installed on the center of the surface of the central pressure block (5). The control slide rod (7) passes through the central pressure block (5) and the lower fixed plate (2). The control slide rod (7) is placed between the two movable pressure plates (6). A bidirectional tooth block (8) is rotatably installed on the surface of the control slide rod (7). The bidirectional tooth block (8) meshes with the C-shaped tooth rings (62) on both sides respectively.

4. The copper welding and fixing device for the gate plate of the cutting seal gate according to claim 3, characterized in that: A knob (71) is provided on the top of the control slider (7).

5. The copper welding and fixing device for the gate plate of the cutting seal gate according to claim 3, characterized in that: The lower fixing plate (2) has a mounting hole (52) at the center of its lower surface. The bottom of the control slide rod (7) passes through the mounting hole (52). The mounting hole (52) has an internal thread at its lower part. The control slide rod (7) has a threaded bolt head (72) at its bottom. The threaded bolt head (72) corresponds to the internal thread of the mounting hole (52).

6. The copper welding and fixing device for the gate plate of the cutting seal gate according to claim 5, characterized in that: A spring (9) is fitted below the surface of the control slide (7). The spring (9) is placed inside the mounting hole (52), and the bottom of the spring (9) is in contact with the upper surface of the threaded bolt head (72).

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