CN219837350U - Clamping and dragging device for welded tunnel embedded channel - Google Patents

Abstract

The utility model discloses a clamping and dragging device for a welded tunnel embedded channel, which comprises a workbench and a dragging assembly; the dragging component is used for clamping the welded channel and dragging the welded channel onto the workbench; the dragging assembly comprises a sliding rail arranged along the longitudinal direction, and the longitudinal direction is the length direction of the workbench; the slide rail is connected with a vertical plate in a sliding manner, and the vertical plate is provided with a clamping piece capable of moving vertically; the clamping piece comprises a fixed claw and a movable claw which are respectively arranged at two sides, one end of the movable claw is rotationally connected to the vertical plate, the vertical plate is also provided with a driving piece, and the driving piece is used for driving the other end of the movable claw to be close to or far away from the fixed claw; by adopting the scheme, the groove can be clamped by the dragging component and is outwards dragged, so that the groove is separated from the welding device, the next groove can be welded rapidly, the automation degree is high, and the production efficiency is high.

Description

Clamping and dragging device for welded tunnel embedded channel

Technical Field

The utility model relates to the technical field of welding production of embedded channels, in particular to a clamping and dragging device for a welded tunnel embedded channel.

Background

The embedded channel is an anchor piece embedded in the tunnel lining and used for fixing equipment such as overhead contact system hanging columns and additional wire brackets.

The manufacturing processes of the embedded channel comprise a welding device for welding, and the welding device is used for welding a plurality of I-steel on the back of the channel so as to be applied to a tunnel; in the prior art, after welding is finished, operators usually draw out the steel manually, so that the efficiency is extremely low, and the steel is not beneficial to efficient production; in addition, the embedded channel can lead rust on the surface layer of the channel to continuously drop to generate dust in the manual transportation process, and the working environment of operators is very bad.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and aims to provide a clamping and dragging device for a welded tunnel embedded channel.

The utility model is realized by the following technical scheme:

the clamping and dragging device comprises a workbench and a dragging assembly;

the dragging component is used for clamping the welded channel and dragging the welded channel onto the workbench;

the dragging assembly comprises a sliding rail arranged along the longitudinal direction, and the longitudinal direction is the length direction of the workbench; the slide rail is connected with a vertical plate in a sliding manner, and the vertical plate is provided with a clamping piece capable of moving vertically;

the clamping piece comprises a fixed claw and a movable claw which are respectively arranged at two sides, one end of the movable claw is rotationally connected to the vertical plate, the vertical plate is further provided with a driving piece, and the driving piece is used for driving the other end of the movable claw to be close to or far away from the fixed claw.

Compared with the prior art, after welding is finished, the welding is usually manually pulled out by operators, the efficiency is extremely low, and the high-efficiency production is not facilitated; in addition, the embedded channel can continuously drop on the surface layer rust of the channel to generate dust in the manual transportation process, and the working environment of an operator is extremely poor. The device comprises a workbench and a dragging assembly, wherein the dragging assembly comprises a vertical plate sliding on a sliding rail, the vertical plate is controlled to slide on the sliding rail, and the sliding rail is not shown in the figure; when the vertical plate slides to a designated position, the clamping piece is controlled to move in the vertical direction, so that the fixed claw and the movable claw are respectively positioned at two sides of the end part of the channel, and the driving piece can drive the movable claw to rotate, so that the driving piece is started, the driving piece drives the movable claw to rotate to be close to the fixed claw, thereby clamping the channel between the fixed claw and the movable claw, then the vertical plate is moved backwards, and the channel is dragged to move towards the workbench, so that the channel is dragged onto the workbench, and the purpose of enabling the channel to be quickly separated from the welding device is achieved.

In the above-mentioned scheme, because the size of channel is different, can lead to the clamping position of stationary dog and movable dog to change to some extent, consequently, for adjusting the transverse position of stationary dog and movable dog, set up to: the vertical plate is connected with a first plate in a sliding manner, and the first plate can slide along the vertical direction; the first plate is connected with a second plate in a sliding manner, and the second plate can slide along the transverse direction; one end of the second plate extends towards one side of the welding device, and the fixed claw and the movable claw are arranged on one extending end of the second plate; in this scheme, through the vertical slip of first plate to adjust the height of holder, and the second plate can transversely slide on first plate, can adjust the transverse position of stationary dog and movable claw, thereby adjust according to different channel sizes.

Further, as a specific implementation manner of driving the movable claw to rotate, it is set as follows: the movable claw is fixedly connected to the lower end of the rotating shaft at one end of the second plate, and the rotating shaft is vertically arranged and can rotate around the axis of the movable claw; the driving piece is a first telescopic cylinder, the first telescopic cylinder is hinged to the second plate, a driving rod is fixed at the upper end of the rotating shaft, the output end of the first telescopic cylinder is hinged to the driving rod, and the rotating shaft is driven to rotate around the axis of the rotating shaft; in the scheme, the upper end of the rotating shaft is positioned at the second plate, the lower end of the rotating shaft is connected with the movable claw, and the rotating shaft has a certain length, so that the movable claw extends downwards, and the fixed claw is also connected to the part of the second plate, which extends downwards, so that a space for clamping a channel is reserved; the first telescopic cylinder can realize the rotation of the horizontal plane through the hinge point, so that the driving rod is driven to rotate on the horizontal plane through the movement of the output end, and then the driving rod drives the rotating shaft to rotate along the axis of the driving rod, so that the movable claw is driven to rotate, and the movable claw is far away from or close to the fixed claw.

Further, to limit the retraction stroke of the first telescopic cylinder, it is provided that: the first plate is also provided with a protection rod, the protection rod extends towards one side of the second plate, the output end of the first telescopic cylinder is hinged to the middle part of the driving rod, and one extending end of the protection rod is positioned in the travel range of the other end of the driving rod; when the first telescopic cylinder retracts for a certain distance, the other end of the driving rod can be propped against the end part of the protection rod, so that the driving rod is prevented from continuing to rotate; in addition, an anti-collision strip can be arranged at one end of the protection rod.

Furthermore, the opposite clamping ends of the fixed claw and the movable claw are respectively provided with a serrated surface; so that the utility model has the anti-skid effect.

As a specific implementation way of adjusting the height of the clamping member, it is set as follows: the middle part of the vertical plate is provided with a vertical through hole, the bottom of the vertical through hole is connected with a third telescopic cylinder, the output end of the third telescopic cylinder is connected with the first plate, two sides of the vertical plate of the vertical through hole are provided with vertical slide ways, and the first plate is in sliding connection with the vertical slide ways; the third telescopic assembly stretches in the vertical direction, so that the first plate is driven to move up and down, and the clamping height is adjusted.

As a specific implementation manner for adjusting the transverse position of the clamping piece, the first plate is provided with a containing groove, the other end of the second plate is positioned in the containing groove, and the transverse width of the containing groove is larger than that of the other end of the second plate; the accommodating groove is internally provided with a transverse sliding rail which is in sliding connection with the second plate; the width of the accommodating groove is larger than that of the other end of the second plate, so that the second plate is provided with an adjusting space in the transverse direction, and the transverse positions of the fixed claw and the movable claw are adjusted through the transverse sliding rail according to the size of the groove.

In the above scheme, because the space on the workbench for placing the channel is limited, in order to detach the channel on the workbench, the device is as follows: the workbench is provided with a movable plate, the middle part of the movable plate is hinged on the workbench, the bottom of the other side of the movable plate is hinged with a second jacking cylinder, and the second jacking cylinder is used for driving the movable plate to incline; a transfer platform is arranged below one side of the movable plate; in the scheme, the dragging component can drag the welded channel on the channel automatic welding I-steel device to the movable plate, so that the channel is prevented from being separated from a welding position; when the channel is dragged to the movable plate, the second jacking cylinder is driven to enable the movable plate to rotate and incline to one side, so that the channel slides to the transfer platform for cooling.

In the scheme, the front end part area of the channel can gradually fall on the movable plate under the pushing of the automatic feeding device behind the welding device in the welding process, so that the channel can be prevented from being directly pulled on the movable plate in order to avoid overlarge noise; therefore, the height of the movable plate is often reduced, the dragging assembly is suspended to drag the channel, and the channel is dragged out, so that when the channel moves forwards for a certain distance and is not clamped, the rear end of the channel is prevented from tilting, the offset clamping position is caused, and the device is set as: the device comprises a movable plate, a discharging clamping jaw, a first connecting rod, a second connecting rod and a connecting rod, wherein the movable plate is provided with a first connecting rod, the first connecting rod is provided with a second connecting rod, the second connecting rod is provided with a third connecting rod, and the third connecting rod is provided with a connecting rod; the height of the L-shaped mounting block is higher than that of the movable plate; a pressing plate which can be far away from or close to the first edge of the L-shaped mounting block is arranged above the first edge of the L-shaped mounting block, and is used for pressing the channel on the first edge of the L-shaped mounting block; the first side of the L-shaped mounting block is higher than the movable plate, the middle of the channel falls on the first side, and the pressing plate is controlled to press down, so that the channel is stably pressed on the L-shaped mounting block, the front end of the channel is suspended, and the clamping of the dragging assembly is facilitated.

Further, as a specific implementation manner of quickly controlling the pressing plate to press down and retract, the device is as follows: the end part of the second side of the L-shaped mounting block is hinged with one end of a first arc-shaped piece, and the other end of the first arc-shaped piece is hinged with the output end of the second telescopic cylinder; the other end of the first arc-shaped piece is provided with a connecting lug which extends outwards, a second arc-shaped piece is hinged at the connecting lug, one end of the second arc-shaped piece is hinged with the connecting lug, and the other end of the second arc-shaped piece is hinged with one end of the third arc-shaped piece; the middle part of the third arc-shaped piece is hinged with the middle part of the L-shaped mounting block; the pressing plate is positioned below the other end of the third arc-shaped piece; the rotation direction of the first arc-shaped piece, the second arc-shaped piece and the third arc-shaped piece and the expansion direction of the second expansion cylinder are all positioned in the same vertical plane; the rotation directions of the first arc-shaped piece and the second arc-shaped piece are opposite; the rotation directions of the second arc-shaped piece and the third arc-shaped piece are the same; in the scheme, the first edge of the L-shaped mounting block is higher than the movable plate, the middle part of the channel falls on the first edge, and after welding is completed, the second telescopic cylinder is driven to extend, so that the first arc-shaped piece, the second arc-shaped piece and the third arc-shaped piece are sequentially driven to rotate, the pressing plate is pressed on the channel, and at the moment, the welding device is enabled to cancel the position limitation of the channel, so that the channel is pressed by the discharging clamping jaw, and one end of the channel is prevented from tilting; and then the vertical plate is moved, so that the movable claw and the fixed claw clamp the two sides of the channel, and the pressing plate is loosened, thereby completing clamping and positioning.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. the utility model provides a clamping and dragging device for a welded tunnel embedded channel.

2. The utility model provides a clamping and dragging device for a welded tunnel embedded channel.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a clamping and dragging device according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at C of one embodiment provided by the present utility model;

FIG. 3 is a schematic view of a towing assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the bottom structure of a towing assembly according to one embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of a discharge jaw according to an embodiment of the present utility model;

fig. 6 is a schematic view of a structure with an L-shaped mounting block removed from a discharge jaw according to an embodiment of the present utility model.

In the drawings, the reference numerals and corresponding part names:

9-automatic feeding device, 11-welding device, 12-dragging subassembly, 1201-fly leaf, 1202-L installation piece, 1203-second telescopic cylinder, 1204-first arc piece, 1205-third arc piece, 1206-clamp plate, 1207-second arc piece, 1208-riser, 1209-first plate, 1210-second plate, 1211-fixed jaw, 1212-fly jaw, 1213-axis of rotation, 1214-driver, 1215-actuating lever, 1216-protection lever, 1218-third telescopic cylinder, 1219-transverse slide rail, 13-transportation platform.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

Examples

The embodiment provides a clamping and dragging device for a welded tunnel embedded channel, which is shown in fig. 1-6 and comprises a workbench and a dragging assembly 12;

the dragging component 12 is used for clamping the welded channel and dragging the welded channel into the workbench;

the dragging assembly 12 comprises a sliding rail arranged along the longitudinal direction, wherein the longitudinal direction is the length direction of the workbench; a vertical plate 1208 is connected to the sliding rail in a sliding manner, and a clamping piece capable of vertically moving is arranged on the vertical plate 1208;

the clamping member comprises a fixed jaw 1211 and a movable jaw 1212 which are respectively arranged at two sides, one end of the movable jaw 1212 is rotatably connected to the vertical plate 1208, the vertical plate 1208 is further provided with a driving member 1214, and the driving member 1214 is used for driving the other end of the movable jaw 1212 to approach or separate from the fixed jaw 1211.

Compared with the prior art, after welding is finished, the welding is usually manually pulled out by operators, the efficiency is extremely low, and the high-efficiency production is not facilitated; in addition, the embedded channel can continuously drop on the surface layer rust of the channel to generate dust in the manual transportation process, and the working environment of an operator is extremely poor. In a specific scheme, the device comprises a workbench and a dragging assembly 12, wherein the dragging assembly 12 comprises a vertical plate 1208 sliding on a sliding rail, the vertical plate 1208 is controlled to slide on the sliding rail, and the sliding rail is not shown in the figure; when the vertical plate 1208 slides to the designated position, the clamping member is controlled to move in the vertical direction, so that the fixed jaw 1211 and the movable jaw 1212 are respectively located at two sides of the end of the channel, and the driving member 1214 can drive the movable jaw 1212 to rotate, so that the driving member 1214 is started, and the driving member 1214 drives the movable jaw 1212 to rotate to be close to the fixed jaw 1211, thereby clamping the channel between the fixed jaw 1211 and the movable jaw 1212, and then the vertical plate 1208 is moved backwards, and the channel is dragged to move towards the workbench, so that the channel is dragged onto the workbench, and the purpose of enabling the channel to be quickly separated from the welding device 11 is achieved.

In the above-described scheme, since the clamping positions of the fixed jaw 1211 and the movable jaw 1212 are changed due to the different sizes of the channels, in order to adjust the lateral positions of the fixed jaw 1211 and the movable jaw 1212, it is provided that: a first plate 1209 is slidably connected to the vertical plate 1208, and the first plate 1209 can slide along the vertical direction; the first plate 1209 is slidably connected to a second plate 1210, and the second plate 1210 can slide in a lateral direction; one end of the second plate 1210 extends toward the welding device 11, and the fixed claw 1211 and the movable claw 1212 are disposed on the extending end of the second plate 1210; in this embodiment, the height of the clamping member is adjusted by sliding the first plate 1209 vertically, and the second plate 1210 can slide laterally on the first plate 1209 to adjust the lateral positions of the fixed 1211 and movable 1212 jaws, thereby adjusting the size of the slots.

Further, as a specific implementation manner of driving the movable claw 1212 to rotate, it is configured that: a rotating shaft 1213 is disposed at one extending end of the second plate 1210, the movable claw 1212 is fixedly connected to the lower end of the rotating shaft 1213 at one end of the second plate 1210, and the rotating shaft 1213 is vertically disposed and can rotate around its own axis; the driving member 1214 is a first telescopic cylinder, the first telescopic cylinder is hinged on the second plate 1210, a driving rod 1215 is fixed at the upper end of the rotating shaft 1213, and the output end of the first telescopic cylinder is hinged with the driving rod 1215 and drives the rotating shaft 1213 to rotate around the axis thereof; in this embodiment, the upper end of the rotation shaft 1213 is located at the second plate 1210, and the lower end is connected to the movable jaw 1212, wherein the rotation shaft 1213 has a certain length, so that the movable jaw 1212 extends downward, and the fixed jaw 1211 is also connected to the portion of the second plate 1210 extending downward at the end thereof, so as to leave a space in which the channel is clamped; the first telescopic cylinder can rotate in the horizontal plane through the hinge point, so that the driving rod 1215 is driven to rotate in the horizontal plane through the movement of the output end, and the driving rod 1215 drives the rotating shaft 1213 to rotate along the axis of the driving rod 1213, so that the movable claw 1212 is driven to rotate to be far away from or close to the fixed claw 1211.

Further, to limit the retraction stroke of the first telescopic cylinder, it is provided that: the first plate 1209 is further provided with a protection rod 1216, the protection rod 1216 extends to one side of the second plate 1210, the output end of the first telescopic cylinder is hinged at the middle part of the driving rod 1215, and one extending end of the protection rod 1216 is positioned in the stroke range of the other end of the driving rod 1215; when the first telescopic cylinder is retracted for a certain distance, the other end of the driving rod 1215 can abut against the end of the protection rod 1216, so that the driving rod 1215 is prevented from rotating continuously; in addition, a bumper strip may be provided at one end of the guard bar 1216.

Further, the opposite clamping ends of the fixed 1211 and movable 1212 each have a serrated surface thereon; so that the utility model has the anti-skid effect.

As a specific implementation way of adjusting the height of the clamping member, it is set as follows: the middle part of the vertical plate 1208 is provided with a vertical through hole, the bottom of the vertical through hole is connected with a third telescopic air cylinder 1218, the output end of the third telescopic air cylinder 1218 is connected with the first plate 1209, two sides of the vertical plate 1208 of the vertical through hole are provided with vertical slide ways, and the first plate 1209 is in sliding connection with the vertical slide ways; the third telescopic assembly stretches in the vertical direction, so that the first plate 1209 is driven to move up and down, and the clamping height is adjusted.

As a specific implementation manner for adjusting the lateral position of the clamping member, the first plate 1209 is provided with a receiving slot, the other end of the second plate 1210 is located in the receiving slot, and the lateral width of the receiving slot is greater than that of the other end of the second plate 1210; the accommodating groove is also provided with a transverse sliding rail 1219 which is in sliding connection with the second plate 1210; wherein the width of the receiving groove is larger than the width of the other end of the second plate 1210 such that the second plate 1210 has an adjusting space in the lateral direction, thereby adjusting the lateral positions of the fixed 1211 and the movable 1212 by the lateral slide 1219 according to the size of the channel.

In the above scheme, because the space on the workbench for placing the channel is limited, in order to detach the channel on the workbench, the device is as follows: the workbench is provided with a movable plate 1201, the middle part of the movable plate 1201 is hinged on the workbench, the bottom of the other side of the movable plate 1201 is hinged with a second jacking cylinder, and the second jacking cylinder is used for driving the movable plate 1201 to incline; a transfer platform 13 is arranged below one side of the movable plate 1201; in the scheme, the dragging component 12 can drag the welded channel on the channel automatic welding I-steel device to the movable plate 1201, so that the channel is prevented from being separated from the welding position; when the channel is dragged onto the movable plate 1201, the second jacking cylinder is driven to enable the movable plate 1201 to rotate and incline to one side, so that the channel slides onto the transfer platform 13 for cooling.

In the above scheme, because the front end position of the channel is pushed by the automatic feeding device 9 behind the welding device 11 in the welding process, the front end part area of the channel gradually falls on the movable plate 1201, so that the channel is prevented from being directly pulled on the movable plate 1201 in order to avoid excessive noise; therefore, the height of the movable plate 1201 is often reduced, so that the dragging assembly 12 hangs in the air to drag the channel out, and therefore, when the channel moves forward a certain distance and is not clamped, in order to avoid tilting the rear end of the channel, the offset clamping position is set as follows: the device comprises a movable plate 1201, a movable plate 1201 and a discharging clamping jaw, wherein the movable plate 1201 is provided with a plurality of L-shaped mounting blocks 1202, and the side surface of the first side of each L-shaped mounting block 1202 is connected with the end part of the movable plate 1201; the height of the L-shaped mounting block 1202 is higher than the height of the movable plate 1201; a pressing plate 1206 which can be far away from or close to the first side of the L-shaped mounting block 1202 is arranged above the first side of the L-shaped mounting block 1202, and the pressing plate 1206 is used for pressing a channel on the first side of the L-shaped mounting block 1202; wherein, the first side of L type installation piece 1202 is higher than fly leaf 1201, and the channel middle part falls on first side, and control clamp plate 1206 pushes down to with the stable pressure of channel on L type installation piece 1202, make the channel front end unsettled, thereby be convenient for drag the centre gripping of subassembly 12.

Further, as a specific implementation of the pressing down and retracting of the quick control platen 1206, it is provided that: a second telescopic cylinder 1203 is hinged below the end part of the first side of the L-shaped mounting block 1202, the end part of the second side of the L-shaped mounting block 1202 is hinged with one end of the first arc-shaped member 1204, and the other end of the first arc-shaped member 1204 is hinged with the output end of the second telescopic cylinder 1203; the other end of the first arc-shaped member 1204 is provided with an outwardly extending connecting lug, a second arc-shaped member 1207 is hinged at the connecting lug, one end of the second arc-shaped member 1207 is hinged with the connecting lug, and the other end of the second arc-shaped member 1207 is hinged with one end of a third arc-shaped member 1205; the middle part of the third arc-shaped piece 1205 is hinged with the middle part of the L-shaped mounting block 1202; the pressure plate 1206 is located below the other end of the third arc 1205; the rotation direction of the first arc-shaped piece 1204, the second arc-shaped piece 1207, the third arc-shaped piece 1205 and the expansion direction of the second expansion cylinder 1203 are all located in the same vertical plane; the first arcuate member 1204 and the second arcuate member 1207 are rotated in opposite directions; the second arcuate member 1207 and the third arcuate member 1205 are rotated in the same direction; in the scheme, the first side of the L-shaped mounting block 1202 is higher than the movable plate 1201, the middle part of the channel falls on the first side, and after welding is completed, the second telescopic cylinder 1203 is driven to extend, so that the first arc-shaped piece 1204, the second arc-shaped piece 1207 and the third arc-shaped piece 1205 are sequentially driven to rotate, and the pressing plate 1206 is pressed on the channel, and at the moment, the welding device 11 is enabled to cancel the position limitation of the channel, so that the channel is pressed by the unloading clamping jaw, and one end of the channel is prevented from tilting; the riser 1208 is then moved so that the movable and stationary jaws 1212, 1211 grip the sides of the channel and release the clamp plate 1206, thereby completing the clamping position.

Working principle: in the process that the welding device 11 sequentially welds a plurality of I-steel on the channel, the automatic feeding device 9 behind the welding device 11 can convey forwards, so that the channel moves forwards gradually, and the I-steel can be welded sequentially along the length direction of the channel; when welding is completed, the second telescopic cylinder 1203 is driven to extend, so that the first arc-shaped piece 1204, the second arc-shaped piece 1207 and the third arc-shaped piece 1205 are sequentially driven to rotate, the pressing plate 1206 is pressed on the channel, and the welding device 11 is enabled to cancel the position limitation of the channel at the moment, so that the channel is pressed by the discharging clamping jaw, and one end of the channel is prevented from tilting; after pressing, the vertical plate 1208 is moved longitudinally, the first plate 1209 is moved vertically, the second plate 1210 is moved transversely, the fixed claw 1211 and the movable claw 1212 are respectively positioned at two sides of the channel, the driving piece 1214 is extended, the movable claw 1212 is driven to rotate to be close to the fixed claw 1211, the channel is clamped, after the clamping is finished, the vertical plate 1208 is moved longitudinally, the channel is dragged to the movable plate 1201, and then the channel is released; the movable plate 1201 is rotated and inclined to one side, so that the channel slides onto the transfer platform 13 for cooling.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The clamping and dragging device for the welded tunnel embedded channel is characterized by comprising a workbench and a dragging assembly (12);

the dragging component (12) is used for clamping the welded channel and dragging the welded channel onto the workbench;

the dragging assembly (12) comprises a sliding rail arranged along the longitudinal direction, and the longitudinal direction is the length direction of the workbench; a vertical plate (1208) is connected to the sliding rail in a sliding manner, and a clamping piece capable of vertically moving is arranged on the vertical plate (1208);

the clamping piece comprises a fixed claw (1211) and a movable claw (1212) which are respectively arranged at two sides, one end of the movable claw (1212) is rotatably connected to the vertical plate (1208), the vertical plate (1208) is also provided with a driving piece (1214), and the driving piece (1214) is used for driving the other end of the movable claw (1212) to be close to or far away from the fixed claw (1211).

2. The clamping and dragging device after welding of a tunnel pre-buried channel according to claim 1, wherein a first plate (1209) is slidably connected to the vertical plate (1208), and the first plate (1209) can slide along a vertical direction; a second plate (1210) is slidably connected to the first plate (1209), and the second plate (1210) can slide along the transverse direction; one end of the second plate (1210) extends toward the welding device (11), and the fixed claw (1211) and the movable claw (1212) are provided on the extending end of the second plate (1210).

3. The clamping and dragging device after tunnel pre-buried channel welding according to claim 2, wherein a rotating shaft (1213) is arranged at one extending end of the second plate (1210), the movable claw (1212) is fixedly connected to the lower end of the rotating shaft (1213) at one end of the second plate (1210), and the rotating shaft (1213) is vertically arranged and can rotate around the axis of the movable claw; the driving piece (1214) is a first telescopic cylinder, the first telescopic cylinder is hinged on the second plate (1210), a driving rod (1215) is fixed at the upper end of the rotating shaft (1213), the output end of the first telescopic cylinder is hinged with the driving rod (1215), and the rotating shaft (1213) is driven to rotate around the axis of the driving piece.

4. A post-welding clamping and dragging device for a tunnel pre-buried channel according to claim 3, wherein the first plate (1209) is further provided with a protection rod (1216), the protection rod (1216) extends towards the second plate (1210), the output end of the first telescopic cylinder is hinged to the middle part of the driving rod (1215), and one extending end of the protection rod (1216) is located in the travel range of the other end of the driving rod (1215).

5. A post-weld clamp towing attachment for tunnel pre-buried channels in accordance with claim 3, characterized in that the opposite clamp ends of the fixed (1211) and movable (1212) jaws each have serrated surfaces.

6. The clamping and dragging device after tunnel pre-buried channel welding according to claim 2, wherein a vertical through hole is formed in the middle of the vertical plate (1208), a third telescopic air cylinder (1218) is connected to the bottom of the vertical through hole, the output end of the third telescopic air cylinder (1218) is connected to the first plate (1209), vertical sliding ways are arranged on two sides of the vertical plate (1208) of the vertical through hole, and the first plate (1209) is in sliding connection with the vertical sliding ways.

7. The post-welding clamping and dragging device for the pre-buried tunnel channel according to claim 2, wherein the first plate (1209) is provided with a receiving groove, the other end of the second plate (1210) is positioned in the receiving groove, and the transverse width of the receiving groove is larger than that of the other end of the second plate (1210); the accommodating groove is also internally provided with a transverse sliding rail (1219) which is in sliding connection with the second plate (1210).

8. The clamping and dragging device after tunnel pre-buried channel welding according to claim 1, wherein a movable plate (1201) is arranged on the workbench, the middle part of the movable plate (1201) is hinged on the workbench, a second jacking cylinder is hinged at the bottom of the other side of the movable plate (1201), and the second jacking cylinder is used for driving the movable plate (1201) to incline; a transfer platform (13) is arranged below one side of the movable plate (1201).

9. The post-welding clamping and dragging device for a tunnel pre-buried channel according to claim 8, further comprising a discharging clamping jaw, wherein the discharging clamping jaw is positioned at one end of a movable plate (1201), the discharging clamping jaw comprises an L-shaped mounting block (1202), and the side surface of the first side of the L-shaped mounting block (1202) is connected with the end part of the movable plate (1201); the height of the L-shaped mounting block (1202) is higher than the height of the movable plate (1201); a pressing plate (1206) which can be far away from or close to the first edge of the L-shaped mounting block (1202) is arranged above the first edge of the L-shaped mounting block (1202), and the pressing plate (1206) is used for pressing the channel on the first edge of the L-shaped mounting block (1202).

10. The clamping and dragging device after tunnel pre-buried channel welding according to claim 9, wherein a second telescopic cylinder (1203) is hinged below the end part of the first side of the L-shaped mounting block (1202), the end part of the second side of the L-shaped mounting block (1202) is hinged with one end of a first arc-shaped piece (1204), and the other end of the first arc-shaped piece (1204) is hinged with the output end of the second telescopic cylinder (1203);

the other end of the first arc-shaped piece (1204) is provided with a connecting lug which extends outwards, a second arc-shaped piece (1207) is hinged at the connecting lug, one end of the second arc-shaped piece (1207) is hinged with the connecting lug, and the other end of the second arc-shaped piece (1207) is hinged with one end of the third arc-shaped piece (1205); the middle part of the third arc-shaped piece (1205) is hinged with the middle part of the L-shaped mounting block (1202); the pressing plate (1206) is positioned below the other end of the third arc-shaped piece (1205);

the rotation directions of the first arc-shaped piece (1204), the second arc-shaped piece (1207) and the third arc-shaped piece (1205) and the expansion direction of the second expansion cylinder (1203) are all positioned in the same vertical plane;

the first arc-shaped piece (1204) and the second arc-shaped piece (1207) rotate in opposite directions; the second (1207) and third (1205) arcuate members are rotated in the same direction.