Automatic hole cutting device for tunnel grouting guide pipe

Abstract

The utility model relates to an automatic hole cutting device for a tunnel grouting guide pipe, which comprises an underframe, and a guide pipe traction mechanism, a sliding mechanism, a guide pipe positioning mechanism and a cutting mechanism which are arranged on the underframe, the guide pipe traction mechanism comprises at least one concave wheel rotating in the radial direction and at least one pressing wheel moving up and down, and the pressing wheel is positioned above the concave wheel; a gap formed by the pressing wheel and the concave wheel is used for limiting one end of the grouting guide pipe, the cutting mechanism comprises an electric rotating assembly, a plasma cutting gun is eccentrically arranged at the output end of the electric rotating assembly, and the output end of the plasma cutting gun faces the radial direction of the grouting guide pipe. And the hollow shaft sleeve is used for sleeving the other end of the grouting guide pipe and axially moves along the sliding mechanism. The hole cutting device can achieve automatic hole cutting of the grouting guide pipe, hole cutting efficiency is high, and labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel grouting conduit processing, in particular to an automatic hole cutting device for a tunnel grouting conduit. Background Art

[0002] The main purpose of tunnel grouting is to reinforce the surrounding rock and ensure the stability of the tunnel chamber. One way of tunnel grouting is to use a tunnel grouting conduit, and the outer peripheral array of the tunnel grouting conduit has a number of axially arranged grouting holes. The existing processing method of grouting holes is to use manual drilling, which is inefficient and the consistency of drilling is not high. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an automatic hole-cutting device for a tunnel grouting conduit, which fixes the two ends of the un-punched conduit on the device respectively, so that when the grouting conduit moves axially, radial holes are punched through the hole-cutting device, which has high efficiency and high consistency of grouting holes.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An automatic hole cutting device for a tunnel grouting conduit comprises:

[0006] chassis;

[0007] A conduit traction mechanism is arranged at the front side of the upper end of the base frame, and the conduit traction mechanism includes at least one radially rotating concave wheel and at least one lifting and moving pressure wheel, the pressure wheel is located above the concave wheel, the gap formed by the pressure wheel and the concave wheel is used to limit one end of the grouting conduit, and the pressure wheel is used to drive the grouting conduit to move axially;

[0008] A cutting mechanism is arranged at the front side of the upper end of the base frame and spaced in front and behind the conduit traction mechanism, the cutting mechanism comprises an electric rotating assembly, an output end of the electric rotating assembly is eccentrically provided with a plasma cutting gun, and the output end of the plasma cutting gun faces the radial direction of the grouting conduit;

[0009] A sliding mechanism, which is arranged at the upper end of the base frame and at least one end of which extends to the rear side of the upper end of the base frame;

[0010] The catheter positioning mechanism is arranged on the sliding mechanism, and the catheter positioning mechanism comprises a hollow shaft sleeve, and the hollow shaft sleeve is used to sleeve the other end of the grouting catheter and move axially along the sliding mechanism.

[0011] Furthermore, the catheter traction mechanism also includes a fixed frame and an electric lifting assembly, the lower end of the fixed frame is arranged on the base frame, the concave wheel is slidably sleeved inside the upper end of the fixed frame, a first driving motor for driving the concave wheel to rotate is arranged on the outer side of the fixed frame, the electric lifting assembly is arranged on the base frame outside the fixed frame, the pressure wheel is arranged on the upper end of the electric lifting assembly, the first driving motor is used to drive the concave wheel to rotate and drive the tunnel grouting catheter to move axially; the catheter positioning mechanism also includes a positioning frame, the positioning frame is arranged on the sliding mechanism, and the upper end of the positioning frame is slidably sleeved with the hollow shaft sleeve; the cutting mechanism also includes an adjusting plate, the lower end of the adjusting plate is arranged on one side of the upper end of the base frame, the upper end of the adjusting plate is provided with the electric rotating assembly, and the electric rotating assembly is used to drive the plasma cutting gun to eccentrically rotate to cut a hole in the grouting catheter.

[0012] Furthermore, the electric rotating assembly also includes an adjusting sleeve, the adjusting plate is sleeved on the outer periphery of the adjusting sleeve, a hole cutting motor is arranged on the outer periphery of the adjusting sleeve, a driving gear is arranged on the output end of the hole cutting motor, a rotating shaft is arranged on the sliding sleeve inside the adjusting sleeve, a driven gear meshing with the driving gear is sleeved on one end of the rotating shaft, an eccentric frame is arranged on one end of the rotating shaft, and the plasma cutting gun is arranged on the eccentric frame.

[0013] Furthermore, the sliding mechanism comprises a smooth shaft and a translation slip ring, the smooth shaft is arranged on the upper part of the base frame, the translation slip ring is sleeved on the smooth shaft, and the positioning frame is arranged on the translation slip ring.

[0014] Furthermore, the electric lifting assembly includes a lifting slide rod, a sliding sleeve and a lifting electric cylinder. The sliding sleeve and the lifting electric cylinder are relatively arranged on both sides of the lower part of the base frame. The lifting slide rod sliding sleeve is arranged in the sliding sleeve. The upper end of the lifting slide rod extending out of the sliding sleeve is slidingly sleeved with the pressure wheel, and the lower end of the lifting slide rod extending out of the sliding sleeve is hinged to the upper end of the lifting electric cylinder.

[0015] Furthermore, the catheter positioning mechanism also includes a dividing chuck, which is through-connected with the hollow sleeve, and the hollow sleeve is slidably sleeved on the upper rear end of the positioning frame. The dividing chuck is located at the front end of the positioning frame and is used to nest and fix the tunnel grouting catheter. A dividing plate motor is provided at the lower part of the positioning frame, and the dividing plate motor is used to drive the hollow sleeve and the positioning frame to rotate through a driving component.

[0016] Furthermore, the driving component includes a dividing plate gear and a driving ring gear, the dividing plate gear is arranged at the output end of the dividing plate motor, and the driving ring gear is sleeved on the outer periphery of the hollow shaft sleeve and meshes with the dividing plate gear.

[0017] Furthermore, the cutting mechanism comprises a pair, and the pair of cutting mechanisms are respectively located on both sides of the radial direction of the grouting conduit; the sliding mechanism comprises a pair, and the pair of sliding mechanisms are respectively arranged on the left and right sides of the upper end of the base frame.

[0018] Furthermore, it also includes a controller, which is electrically connected to the first drive motor, the lifting cylinder, the indexing plate motor and the plasma cutting gun.

[0019] Furthermore, it also includes a plasma cutting machine, which is electrically connected to the controller and the plasma cutting gun.

[0020] The utility model adopts the above technical solution, which has the following advantages:

[0021] The utility model provides an automatic hole cutting device for a tunnel grouting conduit, which clamps the grouting conduit in the gap formed by the concave wheel and the pressure wheel of the conduit traction mechanism and on the conduit positioning mechanism, and after the concave wheel and the pressure wheel cooperate to apply friction force to the grouting conduit, the concave wheel rotates to drive the grouting conduit to move axially intermittently. During the axial movement of the grouting conduit, the plasma cutting gun on the hole cutting device rotates to cut the hole in the grouting conduit, and the hole cutting efficiency is high, saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 for Figure 1 Side view of.

[0024] Figure 3 It is a side view of the catheter positioning mechanism and sliding structure of the utility model.

[0025] Figure 4 It is a schematic diagram of the structure of the hole cutting mechanism of the utility model.

[0026] The accompanying drawings are marked as follows: 1-base frame, 2-fixed frame, 3-concave wheel, 4-grouting duct, 5-first reducer, 6-first drive motor, 7-pressure wheel, 8-lifting slide rod, 9-sleeve, 10-lifting electric cylinder, 11-indexing chuck, 12-indexing plate motor, 13-positioning frame, 14-drive gear ring, 15-indexing plate gear, 16-plasma cutting gun, 17-adjusting plate, 18-fixed plate, 19-smooth shaft, 20-translational slip ring, 21-adjusting sleeve, 22-plasma cutting machine, 23-cutting hole motor, 24-cutting gun fixing tube, 25-grouting hole, 26-controller, 27-hollow sleeve, 28-eccentric frame, 29-drive gear, 30-fixed plate, 31-rotating shaft, 32-driven gear. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings to describe the preferred embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0028] like Figure 1-Figure 4 The utility model is an automatic hole cutting device for a tunnel grouting conduit, comprising a base frame 1, a conduit traction mechanism, a sliding mechanism, a conduit positioning mechanism, a cutting mechanism and a controller 26, wherein the conduit traction mechanism is arranged at the front center of the upper end of the base frame 1, the sliding mechanism is arranged at the upper end of the base frame 1 and at least one end extends to the rear end of the base frame 1, the conduit positioning mechanism is slidably arranged on the sliding mechanism, the cutting mechanism is eccentrically arranged on one longitudinal side of the upper end of the base frame 1, the grouting conduit 4 is penetrated and sleeved on the conduit traction mechanism and the conduit positioning mechanism, the conduit traction mechanism is used to pull the grouting conduit 4 to move axially, and the cutting mechanism is used to cut holes in the radial direction of the grouting conduit 4.

[0029] The catheter traction mechanism includes at least one fixed frame 2 and an electric lifting assembly. The lower end of the fixed frame 2 is arranged on the base frame 1. The upper end of the fixed frame 2 is provided with a concave wheel 3 supporting the grouting catheter 4 in a sliding sleeve. The outer side of the fixed frame 2 is provided with a first driving motor 6 driving the concave wheel 3 to rotate. The electric lifting assembly is arranged on the base frame 1 outside the fixed frame 2. The upper end of the electric lifting assembly is provided with a pressing wheel 7 located above the concave wheel 3. The pressing wheel 7 and the concave wheel 3 form a gap for fixing one end of the grouting catheter 4. The first driving motor 6 is used to drive the concave wheel 3 to rotate and drive the grouting catheter 4 to move axially.

[0030] The catheter positioning mechanism includes a positioning frame 13, which is arranged on the sliding mechanism. The upper end of the positioning frame 13 is slidingly sleeved with a hollow shaft sleeve 27, and the hollow shaft sleeve 27 is used to sleeve the other end of the grouting catheter 4 and slide axially along the sliding mechanism.

[0031] The cutting mechanism includes an adjustment plate 17, the lower ends of which are respectively arranged on one side of the upper end of the base frame 1, and an electric rotating assembly is arranged on the upper end of the adjustment plate 17, and a plasma cutting gun 16 is eccentrically arranged at the front end of the electric rotating assembly, and the plasma cutting gun 16 is located on one side of the horizontal radial direction of the grouting conduit 4. The electric rotating assembly is used to drive the plasma cutting gun to rotate eccentrically to cut holes on the surface of the grouting conduit 4. When the plasma cutting gun 16 is cutting holes, it rotates and cuts holes at a certain gap position on the surface of the grouting conduit 4, and does not need to contact the surface of the grouting conduit 4.

[0032] Specifically, the base frame 1 is a rectangular parallelepiped frame structure, the lower part of the base frame 1 has a lower support plate, and the top of the base frame 1 is provided with an upper support plate. The catheter traction mechanism includes a pair of fixed frames 2, and the lower ends of the fixed frames 2 are arranged at intervals on the lateral center of the upper support plate. The fixed frame 2 is a U-shaped structure, the upper end is a U-shaped mouth, and a concave wheel 3 is slidably sleeved in the U-shaped mouth. The outer concave surface of the concave wheel 3 is an arc surface, and the outer periphery of the grouting catheter 4 is supported in the arc surface. The rotation of the concave wheel 3 drives the grouting catheter 4 to move axially. A first drive motor 6 is arranged on the outer side of the fixed frame 2, and the output end of the first drive motor 6 is connected to the rotating shaft of one side of the concave wheel 3. The output end of the first drive motor 6 is connected to the first reducer 5, and the output end of the first reducer 5 drives the rotating shaft connected to the concave wheel 3 to realize the radial rotation of the concave wheel 3. The first drive motor 6 is preferably an encoding motor, and the intermittent rotation of the concave wheel 3 is realized by the encoding motor.

[0033] Furthermore, the electric rotating assembly includes an adjusting sleeve 21, a hole cutting motor 23 is provided at the upper end of the adjusting sleeve 21, a driving gear 29 is provided at the output end of the hole cutting motor 23, a rotating shaft 31 is provided in a sliding sleeve inside the adjusting sleeve 21, one end of the rotating shaft 31 is provided with a driven gear 32 meshing with the driving gear 29, and the other end of the rotating shaft 31 is provided with an eccentric frame 28, one end of the plasma cutting gun 16 is arranged on the eccentric frame 28, and the other end of the plasma cutting gun 16 serves as a cutting end facing the radial surface of the grouting conduit 4, and has a gap with the radial surface of the grouting conduit 4.

[0034] Furthermore, the cutting mechanism also includes a fixed disk 30, the upper end of the fixed disk 30 is sleeved on the adjusting sleeve 21, the adjusting plate 17 is an L-shaped plate, the bottom of the adjusting plate 17 is fixed on the upper support surface of the chassis 1, the upper part of the adjusting plate 17 is sleeved with the fixed disk 30, the lower end of the fixed disk 30 is arranged on the upper end of the adjusting plate 17, and can be adjusted up and down and the height of the adjusting plate 17 is fixed by bolts and nuts, and the rotating shaft 31 is slidably nested in the adjusting sleeve 21 and extends out of both ends of the adjusting sleeve 21. The hole cutting motor 23 drives the driving gear 29 to mesh with the driven gear 32 to drive the rotating shaft 31 to rotate to realize the eccentric rotation of the plasma cutting gun 16.

[0035] Furthermore, a cutting torch fixing tube 24 is provided at one end of the eccentric frame 28 , and the other end of the eccentric frame 28 is fixed to the end of the rotating shaft 31 . The plasma cutting torch 16 is inserted into the cutting torch fixing tube 24 .

[0036] Furthermore, the electric lifting assembly includes a lifting slide rod 8, a sliding sleeve 9 and a lifting cylinder 10. The sliding sleeve 9 and the lifting cylinder 10 are relatively arranged on both sides of the lower part of the base frame 1. The lifting slide rod 8 is slidingly sleeved in the sliding sleeve 9. The lifting slide rod 8 extends out of the upper end of the sliding sleeve 9 and the sliding sleeve is provided with a pressure wheel 7. The lower end of the lifting slide rod 8 extending out of the sliding sleeve 9 is hinged to the upper end of the lifting cylinder 10.

[0037] Specifically, the lifting slide bar 8 is axially arranged on the upper support plate of the base 1 and penetrates the upper support plate, and the lifting slide bar 8 is located between a pair of fixed frames 2. The upper end of the lifting slide bar 8 is laterally slidably sleeved with a pressure wheel 7, and the sliding sleeve 9 is fixed on the lower side of the upper support plate of the base 1. The lifting slide bar 8 is slidably sleeved in the sliding sleeve 9 and is axially limited by the sliding sleeve 9. The lower fixed end of the lifting electric cylinder 10 is arranged on the lower support plate of the base 1, and the telescopic end of the lifting electric cylinder 10 is hinged to the lower end of the lifting slide bar 8. The lifting electric cylinder 10 telescopically moves up and down to adjust the upper and lower positions of the pressure wheel 7. The lifting electric cylinder 10 is preferably an electric telescopic rod.

[0038] Further, the cutting mechanism includes a pair, and the pair of cutting mechanisms are respectively located at both radial sides of the grouting conduit 4. The grouting holes 25 can be processed on both sides of the grouting conduit 4 in the radial horizontal direction at the same time through the pair of cutting mechanisms.

[0039] Further, the sliding mechanism includes a pair of sliding mechanisms, which are respectively arranged on the left and right sides of the upper part of the base frame 1. Each sliding mechanism includes a smooth shaft 19 and a translation slip ring 20, the smooth shaft 19 is arranged on the upper part of the base frame 1, the translation slip ring 20 is sleeved on the smooth shaft 19, and the catheter positioning mechanism is arranged on the translation slip ring 20.

[0040] Specifically, a pair of smooth shafts 19 are respectively arranged on the left and right sides of the upper support plate of the base frame 1, and the translation slip ring 20 is nested on the smooth shaft 19 and can move axially along the smooth shaft 19. The two ends of the positioning frame 13 at the bottom of the catheter positioning mechanism are respectively fixed on the translation slip ring 20.

[0041] Of course, the sliding mechanism can also be one, in which case the smooth shaft 19 and the translation slip ring 20 are arranged at the center position of the upper support plate of the base frame 1, and the bottom center of the catheter positioning mechanism is fixed on the translation slip ring 20.

[0042] Of course, as a preferred embodiment, the sliding mechanism can also be a linear displacement slide, which includes a linear guide rail and a slider. The slider is embedded in the linear guide rail and moves axially along the linear guide rail. At this time, the catheter positioning mechanism is fixed on the slider.

[0043] Furthermore, in order to realize the rotation of the grouting catheter 4, the catheter positioning mechanism also includes a dividing chuck 11, which is connected with the hollow shaft sleeve 27, and the hollow shaft sleeve 27 is slidably sleeved on the upper rear end of the positioning frame 13. The dividing chuck 11 is located at the front end of the positioning frame 13 and is used to nest and fix the grouting catheter 4. The lower part of the positioning frame 13 is provided with a dividing plate motor 12, and the dividing plate motor 12 is used to drive the hollow shaft sleeve 27 and the positioning frame 13 to rotate through a driving component, and the lower end of the positioning frame 13 is set on the sliding mechanism.

[0044] Specifically, a fixed frame 13 is installed on the upper part of the translation slip ring 20, and a hollow shaft sleeve 27 is inserted into the left side of the fixed frame 13 through a bearing sleeve. A dividing chuck 11 is sleeved on the outer periphery of one end of the hollow shaft sleeve 27, and a driving gear ring 14 is installed on the other end of the hollow shaft sleeve 27. The dividing plate motor 12 is fixed to the lower rear end of the fixed frame 13 and is located at the lower end of the hollow shaft sleeve 27.

[0045] Furthermore, the driving component includes a dividing plate gear 15 and a driving ring gear 14 . The dividing plate gear 15 is arranged at the output end of the dividing plate motor 12 . The driving ring gear 14 is sleeved on the outer periphery of the hollow shaft sleeve 27 and meshes with the dividing plate gear 15 .

[0046] Specifically, the output end of the indexing plate motor 12 is provided with an indexing plate gear 15 meshing with the drive gear ring 14. The indexing plate motor 12 drives the indexing plate gear 15 and the drive gear ring 14 to mesh and drive the indexing chuck 11 and the hollow sleeve 27 to rotate, and the radial rotation angle of the grouting conduit 4 is adjusted by the rotation of the indexing chuck 11.

[0047] Further, the controller 26 is electrically connected to the first drive motor 6, the lifting cylinder 10, the hole cutting motor 23, the indexing plate motor 12 and the plasma cutting gun 16. The controller 26 is arranged on the lower support plate of the chassis 1, and the start and stop of the first drive motor 6, the lifting cylinder 10, the hole cutting motor 23 and the indexing plate motor 12 are controlled by the controller 26.

[0048] Furthermore, the automatic hole cutting device further includes a plasma cutter 22, which is electrically connected to the controller 26 and the plasma cutting gun 16. The plasma cutter 22 is disposed on the lower support plate of the chassis 1, and the plasma cutter 22 is started and stopped by the controller 26. The plasma cutter 22 is electrically connected to the plasma cutting gun 16 to output energy to the plasma cutting gun 16.

[0049] The controller 26 of the present invention is a PLC controller, which can program and control the start and stop of the first drive motor 6, the lifting cylinder 10, the hole cutting motor 23, the indexing plate motor 12 and the plasma cutting gun 16, and program and control the corresponding working time and sequence. Since the PLC controller is a prior art, the present invention will not be described in detail again.

[0050] The utility model provides an automatic hole cutting device for a tunnel grouting conduit. When in use, the grouting conduit 4 is passed through a hollow shaft sleeve 27, a dividing chuck 11, and between a concave wheel 3 and a pressing wheel 7. The dividing chuck 11 is rotated forward to clamp the grouting conduit 4. The lifting electric cylinder 10 is started to move downward so that the pressing wheel 7 is lowered and pressed against the concave wheel 3 to form a certain friction force between the concave wheel 3 and the grouting conduit 4. The first driving motor 6 is started to drive the grouting conduit 4 to move forward a certain distance and then stop. The hole cutting motor 23 of the cutting mechanism is started to drive the plasma cutting gun 16 to rotate. After the plasma cutting gun 16 outputs energy, it radially cuts holes in the grouting conduit 4 until the first row of grouting holes in the axial direction of the grouting conduit 4 is completely processed; the indexing plate motor 12 is started to drive the indexing chuck 11 to rotate 90 degrees, and then the first drive motor 6 is controlled to start to drive the grouting conduit 4 to move backward to process another row of grouting holes, until the two rows of grouting holes are completely processed, and then the lifting electric cylinder 10 is started to move the pressure wheel 7 upward to disengage from the grouting conduit 4, and the indexing chuck 11 is rotated in the opposite direction to loosen the grouting conduit 4, and the grouting conduit 4 is removed to complete the grouting hole processing on the grouting conduit 4.

[0051] At this time, the grouting holes of the grouting conduit 4 are arranged in 4 groups in a radial array. When more groups are needed, it can be achieved by rotating the indexing chuck 11 at different angles.

Claims

1. An automatic hole cutting device for a tunnel grouting conduit, characterized in that: include, chassis; A conduit traction mechanism is arranged at the front side of the upper end of the base frame, and the conduit traction mechanism includes at least one radially rotating concave wheel and at least one lifting and moving pressure wheel, the pressure wheel is located above the concave wheel, the gap formed by the pressure wheel and the concave wheel is used to limit one end of the grouting conduit, and the pressure wheel is used to drive the grouting conduit to move axially; A cutting mechanism is arranged at the front side of the upper end of the base frame and spaced in front and behind the conduit traction mechanism, the cutting mechanism comprises an electric rotating assembly, an output end of the electric rotating assembly is eccentrically provided with a plasma cutting gun, and the output end of the plasma cutting gun faces the radial direction of the grouting conduit; A sliding mechanism, which is arranged at the upper end of the base frame and at least one end of which extends to the rear side of the upper end of the base frame; The catheter positioning mechanism is arranged on the sliding mechanism, and the catheter positioning mechanism comprises a hollow shaft sleeve, and the hollow shaft sleeve is used to sleeve the other end of the grouting catheter and move axially along the sliding mechanism.

2. The automatic hole cutting device for tunnel grouting pipe according to claim 1, characterized in that: The catheter traction mechanism also includes a fixed frame and an electric lifting assembly, the lower end of the fixed frame is arranged on the base frame, the concave wheel is slidably sleeved inside the upper end of the fixed frame, a first driving motor for driving the concave wheel to rotate is arranged on the outer side of the fixed frame, the electric lifting assembly is arranged on the base frame outside the fixed frame, the pressure wheel is arranged on the upper end of the electric lifting assembly, the first driving motor is used to drive the concave wheel to rotate and drive the tunnel grouting catheter to move axially; the catheter positioning mechanism also includes a positioning frame, the positioning frame is arranged on the sliding mechanism, and the upper end of the positioning frame is slidably sleeved with the hollow shaft sleeve; the cutting mechanism also includes an adjusting plate, the lower end of the adjusting plate is arranged on one side of the upper end of the base frame, the upper end of the adjusting plate is provided with the electric rotating assembly, and the electric rotating assembly is used to drive the plasma cutting gun to rotate eccentrically to cut a hole in the grouting catheter.

3. The automatic hole cutting device for tunnel grouting pipe according to claim 2 is characterized in that: The electric rotating assembly also includes an adjusting sleeve, the adjusting plate is sleeved on the outer circumference of the adjusting sleeve, a hole cutting motor is arranged on the outer circumference of the adjusting sleeve, a driving gear is arranged on the output end of the hole cutting motor, a rotating shaft is arranged on the sliding sleeve inside the adjusting sleeve, a driven gear meshing with the driving gear is sleeved on one end of the rotating shaft, an eccentric frame is arranged on one end of the rotating shaft, and the plasma cutting gun is arranged on the eccentric frame.

4. The automatic hole cutting device for tunnel grouting pipe according to claim 3 is characterized by: The sliding mechanism comprises a smooth shaft and a translation slip ring, wherein the smooth shaft is arranged on the upper part of the base frame, the translation slip ring is sleeved on the smooth shaft, and the positioning frame is arranged on the translation slip ring.

5. The automatic hole cutting device for tunnel grouting pipe according to claim 4, characterized in that: The electric lifting assembly includes a lifting slide rod, a sliding sleeve and a lifting electric cylinder. The sliding sleeve and the lifting electric cylinder are relatively arranged on both sides of the lower part of the base frame. The lifting slide rod sliding sleeve is arranged in the sliding sleeve. The upper end of the lifting slide rod extending out of the sliding sleeve is slidingly sleeved with the pressure wheel. The lower end of the lifting slide rod extending out of the sliding sleeve is hinged to the upper end of the lifting electric cylinder.

6. The automatic hole cutting device for tunnel grouting pipe according to claim 5, characterized in that: The catheter positioning mechanism also includes a dividing chuck, which is through-connected with the hollow sleeve, and the hollow sleeve is slidably sleeved on the upper rear end of the positioning frame. The dividing chuck is located at the front end of the positioning frame and is used to nest and fix the tunnel grouting catheter. A dividing plate motor is provided at the lower part of the positioning frame, and the dividing plate motor is used to drive the hollow sleeve and the positioning frame to rotate through a driving component.

7. The automatic hole cutting device for tunnel grouting pipe according to claim 6, characterized in that: The driving component comprises a dividing plate gear and a driving gear ring. The dividing plate gear is arranged at the output end of the dividing plate motor. The driving gear ring is sleeved on the outer periphery of the hollow shaft sleeve and meshes with the dividing plate gear.

8. The automatic hole cutting device for tunnel grouting pipe according to claim 7, characterized in that: The cutting mechanism comprises a pair, and the pair of cutting mechanisms are respectively located at the radial sides of the grouting conduit; the sliding mechanism comprises a pair, and the pair of sliding mechanisms are respectively arranged at the left and right sides of the upper end of the base frame.

9. The automatic hole cutting device for tunnel grouting pipe according to claim 8, characterized in that: It also includes a controller, which is electrically connected to the first drive motor, the lifting electric cylinder, the indexing plate motor and the plasma cutting gun.

10. The automatic hole cutting device for tunnel grouting pipe according to claim 9, characterized in that: Also included is a plasma cutting machine, which is electrically connected to the controller and the plasma cutting gun.

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