Reciprocating type automatic grooving machine for strip lock catch of cofferdam pipe pile

Abstract

The invention discloses a reciprocating type automatic grooving machine for cofferdam pipe pile long-strip lock catches, which relates to the technical field of lock catch grooving and comprises a base, a circumferential rotation adjusting mechanism, a water-cooling lubricating mechanism, a saw cutting adjusting mechanism and a double-saw blade mechanism. The circumferential rotation adjusting mechanism comprises a placing table fixed on the base and a plurality of groups of rollers mounted on the placing table, and a working platform sliding on the base is arranged on the base; the water-cooling lubricating mechanism is located on the upper surface of the working platform and connected with a water spraying part through a pipeline, and the water spraying end of the water spraying part faces the double-saw-blade mechanism. The working platform is provided with a transverse displacement unit, and the saw cutting adjusting mechanism is connected to the working platform through the transverse displacement unit. The double-saw-blade mechanism is connected with the saw cutting adjusting mechanism and comprises two blades and a saw cutting motor, a rotating shaft penetrates through the centers of the blades, the output end of the saw cutting motor and the rotating shaft are coaxially fixed, and a pressing assembly is arranged on the side wall of each blade. The cutting and grooving device has the effect of improving the cutting and grooving efficiency and accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of lock buckle slotting, and in particular to a reciprocating automatic slotting machine for long strip lock buckles of cofferdam pipe piles. Background Art

[0002] Cofferdam pipe piles refer to water retaining structures used in water conservancy projects to isolate water bodies (such as rivers and lakes) during construction. Steel pipe piles need to be driven into the ground to form a continuous wall. During this period, adjacent steel pipe piles need to be connected to each other (such as Figure 8 As shown), the steel pipe piles are connected by locking buckles (such as Figure 9 The notch of the lock needs to be cut in advance. The existing notching equipment is roughly divided into the following three types: 1. Flame semi-automatic cutting machine: This cutting machine moves in a straight line along the guide rail and needs to cut and groove the seamless pipe in two passes. However, flame cutting is prone to slag and adhesion, making it difficult to remove the cutting waste, which requires external force to remove. In addition, the flame cutting surface has poor flatness and requires a lot of grinding time; 2. Abrasive wheel cutter: The manual operation efficiency of this cutter is low, metal splashes and dust are large on site, and the grinding wheel has the risk of explosion. Production safety and environmental protection are not guaranteed. In addition, the abrasive wheel cutter needs to cut the notch twice, and the accuracy of the second cutting is unstable. 3. Single-blade cold cutting machine: The alloy blade of this cutting machine has a smooth cut. However, since the blade is only 2.2 mm, it can only open a 2.5 mm notch and cannot open a larger notch. A secondary cut is required, and the accuracy of the secondary cut is unstable. Based on the above problems existing in the cutting machine, this application proposes a new technical solution. Summary of the Invention

[0003] In order to improve the efficiency and accuracy of cutting and grooving, the present application provides a reciprocating automatic grooving machine for cofferdam pipe piles with long strip locks.

[0004] The present application provides a reciprocating automatic slotting machine for long strips of cofferdam pipe piles, which adopts the following technical solutions: 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting device are pivotally connected to each other to form a round shank and a round shank of said working table. Said linking rod and said adjusting device are pivotally connected to each other to form a round shank, and said adjusting device is pivotally connected to said linking rod. said linking rod The working platform is equipped with a lateral displacement unit, and the sawing adjustment mechanism is connected to the working platform through the lateral displacement unit, and the sliding direction of the lateral displacement unit is perpendicular to the length direction of the guide rail; the double saw blade mechanism is connected to the sawing adjustment mechanism, and the double saw blade mechanism includes two blades and a sawing motor, a rotating shaft is passed through the center of the blade, the output end of the sawing motor is coaxially fixed with the rotating shaft and the sawing motor is connected to the sawing adjustment mechanism, and a clamping assembly is provided on the side wall of the blade.

[0005] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is pivotally connected to said linking rod. said linking rod has a round shank to contact with said linking rod.

[0006] Optionally, a photographic detection mechanism and a control module are included, wherein the photographic detection mechanism includes a camera 1, which is mounted on the lower surface of the work platform and located above the centerline of the placement table, with the camera end of the camera 1 pointing vertically downward. The camera 1 and the servo motor are electrically connected to the control module, and the control module is configured as follows: Analyze the centerline position of the lock buckle in the image captured by camera 1; Analyze whether the center line position of the lock coincides with the center point of the image. If not, control the servo motor to drive the roller. If so, control the servo motor to stop driving the roller.

[0007] Optionally, the photographic detection mechanism includes a second camera, which is mounted on the lower surface of the motor mounting plate, with the camera end of the second camera facing vertically downward. The second camera and the lateral displacement unit are electrically connected to a control module, and the control module is configured as follows: Establish a coordinate system based on the center of the second camera perspective as the origin; Define the sliding direction of the lateral displacement unit as the X-axis direction, and define the direction of the blade relative to the second camera as the positive direction of the X-axis; Record the distance data a between the second camera and the blade in the X-axis direction; If the image information fed back by camera 2 is received, the center coordinates (x1, y1) of the lock buckle of the steel pipe pile in the image are analyzed and obtained; Calculate the distance b between the center of the steel pipe pile lock (x1, y1) and the blade; if x1 is a positive number, then b = x1-a; if x1 is a negative number, then b = |x1| + a; Control the lateral displacement unit to move a distance b toward the center coordinate of the lock.

[0008] Optionally, the water-cooling lubrication mechanism includes a water tank, a water pump and a nozzle. The water tank is installed on the upper part of the work platform. A plurality of filter plates are arranged inside the water tank. The water supply pipe and the water outlet pipe of the water tank are respectively connected to the two opposite side walls of the water tank. The water suction port of the water pump is connected to the water outlet pipe of the water tank through a water pipe. The water outlet port of the water pump is connected to the nozzle through a water pipe. The spraying end of the nozzle is facing the blade.

[0009] Optionally, the clamping assembly includes a pad, a pressure plate, a clamping block and a clamping screw, the pad is located between the two blades, the pressure plate abuts against the side walls of the two blades facing away from each other, an adapter shaft is provided on the output end of the sawing motor and the outer side of the rotating shaft, and the output end of the sawing motor is coaxially connected to the rotating shaft through the adapter shaft, the clamping block abuts against the rotating shaft, the clamping screw passes through the clamping block and is connected to the rotating shaft, protective covers are provided on the outer sides of the two blades, and protective covers are passed through both ends of the rotating shaft.

[0010] Optionally, the double saw blade mechanism includes two movable plates, two blades are respectively passed through the two movable plates, the outer wall of the rotating shaft is provided with a threaded structure, the two movable plates are passed through the rotating shaft and are threadedly connected to the rotating shaft, a section of the two movable plates close to each other is folded toward the outside, and the folded section abuts against the side wall of the blade, and the side section of the movable plate is T-shaped; The clamping assembly includes an abutment block and a cover plate, wherein the abutment block abuts against the side wall of the blade away from the sawing motor, the abutment block is annularly sleeved on the movable plate, the cover plate abuts against the side wall of the abutment block, the cover plate is hollow inside and open at one end, the open end of the cover plate abuts against the abutment block, and the inner depth of the cover plate is greater than the length of the movable plate through which the blade is passed; the end of the rotating shaft is provided with a polygonal block for twisting; A connecting mechanism is provided on the outer side of the movable plate and the blade, and the connecting mechanism is connected to the output end of the sawing motor. A plurality of fixing rods are provided at the end of the movable plate and the fixing rods are connected to the connecting mechanism. A plurality of guide rods are passed through the folding sections of the two movable plates. The positions of the abutment block and the blade corresponding to the guide rods are provided with through holes for the guide rods to pass through, and the through holes are located on the inner side of the position corresponding to the opening of the cover plate.

[0011] Optionally, the connecting mechanism includes a connecting plate body and multiple penetrating rods, the connecting plate body is hollow inside and open at one end, the open end abuts against the side wall of the blade and is covered on the movable plate, the fixed rod is connected to the connecting plate body, multiple penetrating rods are connected to the connecting plate body and are arranged circumferentially, the penetrating rod passes through the two blades, and the end extends away from the blade of the sawing motor, a limiting plate extends from the outside of the cover plate, the penetrating rod passes through the limiting plate, and the two side walls of the limiting plate abut against two limit blocks, and the limit blocks are sleeved on the penetrating rod.

[0012] Optionally, the connecting mechanism includes a locking assembly, which includes a connecting ring and a piston, the piston having a polygonal structure, and the two ends of the connecting ring are respectively sealed and connected to the output end of the sawing motor and the connecting plate body; the shape of the central opening of the connecting ring fits the outer wall of the piston, the rotating shaft passes through and extends out of the connecting plate body, the end of the rotating shaft passing through the connecting plate body is a polygonal structure, and a locking groove that fits the end of the rotating shaft is opened on the side of the piston facing the rotating shaft, and the end of the rotating shaft is inserted into the locking groove; The connecting ring is provided with an inflation pipe and an outlet pipe, the inflation pipe is provided with a first one-way valve, the outlet pipe is provided with a second one-way valve, an abutment ring is provided on the outside of the connecting ring, the connecting ring and the abutment ring are rotatably connected, the interior of the abutment ring is hollow and covers the first one-way valve and the second one-way valve; The abutment ring is provided with an airbag close to the side wall of the connecting ring. When the airbag is inflated, it abuts against the connecting ring and seals the internal cavity of the abutment ring. The airbag is connected to an air source through an air pipe, and the air pipe connected to the airbag is provided with an electromagnetic valve. The airbag is provided with an air release pipe, and the air release pipe is connected to the air release valve. The abutment ring is provided with an air inlet and an air outlet. The air inlet is connected to the air outlet port of the air source through the air pipe, and the air outlet is connected to the air extraction port of the air source through the air pipe. The one-way valve 1, the one-way valve 2, the air release valve, the electromagnetic valve and the air source are electrically connected to a control module. The control module is configured as follows: If a signal from the user triggering the control gas source is received, the one-way valve 1 is controlled to open, the air relief valve and the one-way valve 2 are controlled to close, and the solenoid valve is controlled to open for a time period of t1 and then close; t1 is a preset value; If a signal is received from the user to start sawing, the air relief valve is controlled to open the valve port; If a signal of a control gas source deflation triggered by a user is received, the second one-way valve is controlled to open the valve port, and the first one-way valve is controlled to close the valve port.

[0013] Optionally, a displacement sensor is provided inside the connecting ring, the sensing end of the displacement sensor faces the piston, the outer wall of the piston at least abutting against the displacement sensor is a metal structure, the displacement sensor is electrically connected to the control module, and the control module is configured as follows: if the data fed back by the displacement sensor is ≥c, the air source is controlled to stop supplying air; wherein c is a preset value of the piston being pressed against the rotating shaft.

[0014] In summary, the present application includes the following beneficial technical effects: the roller of the circumferential rotation adjustment mechanism drives the steel pipe pile to rotate and position, so that the C-shaped female head lock is accurately adjusted to the 12 o'clock direction; the working platform slides along the guide rail and cooperates with the double saw blade mechanism to achieve precise grooving. The two blades with adjustable spacing complete the processing of grooves of different widths in one cutting, avoiding secondary processing, which is faster and more accurate. The water-cooling lubrication system ensures that the cutting surface is smooth, and the sawing adjustment mechanism realizes precise adjustment at multiple angles. In summary, the present application significantly improves the efficiency and quality of grooving of the steel pipe pile lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of this application Figure 2 It is a structural diagram of the circumferential adjustment mechanism in this application; Figure 3 It is a structural diagram of the water-cooling lubrication mechanism in this application; Figure 4 It is a schematic structural diagram of the double saw blade mechanism in this application; Figure 5 This is a structural diagram of Example 2 of the compression assembly in this application; Figure 6 yes Figure 5 Enlarged view of part A; Figure 7 is a connection diagram of the control module in this application; Figure 8 It is a connection diagram of steel pipe piles; Figure 9 This is a schematic diagram of the locking steel pipe pile assembly.

[0016] Explanation of reference numerals: 1. base; 2. circumferential rotation adjustment mechanism; 21. roller; 22. placement table; 23. guide rail; 24. working platform; 25. lateral displacement unit; 26. drive unit; 27. servo motor; 3. water cooling and lubrication mechanism; 31. water tank; 32. water pump; 33. nozzle; 34. filter plate; 4. sawing adjustment mechanism; 41. adjustment frame; 42. rotating motor; 43. rotating adjustment shaft; 44. buffer spring; 45. cylinder; 46. connecting block; 47. motor mounting plate; 5. double saw blade mechanism; 51. blade; 52. sawing motor; 53. rotating shaft; 54. pressing assembly; 541. pad; 542. pressing plate; 543. Compression block; 544, adapter shaft; 545, protective cover; 546, abutment block; 547, cover plate; 548, polygonal block; 549, limiting plate; 55, movable plate; 56, fixing rod; 57, guide rod; 58, limit block; 6, photographic detection mechanism; 61, camera 1; 62, camera 2; 7, connecting mechanism; 71, connecting plate body; 72, penetration rod; 73, locking assembly; 731, connecting ring; 732, piston; 733, one-way valve 1; 734, one-way valve 2; 735, abutment ring; 736, solenoid valve; 737, air relief valve; 738, displacement sensor; 8, control module; 9, steel pipe pile; 10, Ю-shaped lock buckle; 11, C-shaped lock buckle. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-9 This application is described in further detail.

[0018] The embodiment of the present application discloses a reciprocating automatic slotting machine for long strips of cofferdam pipe piles with locking buckles.

[0019] Reference Figure 1 The cofferdam pipe pile long strip lock reciprocating automatic slotting machine includes a base 1, a circumferential rotation adjustment mechanism 2, a water cooling and lubrication mechanism 3, a sawing adjustment mechanism 4 and a double saw blade mechanism 55. The circumferential rotation adjustment mechanism 2 is used to rotate the lock of the steel pipe pile 9 upward. The lock of the steel pipe pile 9 of the present application is a "C-Ю" type lock (such as Figure 9As shown), each steel pipe pile 9 is composed of three parts: a large-diameter steel pipe body, a Ю-shaped lock male head accessory, and a C-shaped lock female head accessory. The C-shaped female head needs to be grooved at a specified position in advance, so it is necessary to set the above-mentioned circumferential rotation adjustment mechanism 2 for adjusting its overall circumferential placement position.

[0020] Reference Figure 1 The circumferential adjustment mechanism includes a placement platform 22 and multiple groups of rollers 21 installed on the placement platform 22. The placement platform 22 is located on the base 1 and is used to place the steel pipe pile 9. The placement platform 22 can be multiple (at least 2, this application takes 2 as an example) and arranged along the center line of the base 1. The placement platform 22 is welded to the upper surface of the base 1. The base 1 and the placement platform 22 can be rectangular when viewed from above, and the center line of the placement platform 22 coincides with the center line of the base 1. There are at least two groups of rollers 21. The rollers 21 of the same group are located on the same placement platform 22. Each group of rollers 21 has two and are symmetrically distributed with one on the left and one on the right with the center line of the placement platform 22 as the center. The steel pipe pile 9 is located on the two rollers 2 of each group. 1 and the side wall abuts against the side wall of the roller 21, the length direction of the steel pipe pile 9 is placed parallel to the length direction of the roller 21, so that the circumferential rotation of the roller 21 can drive the circumferential rotation of the steel pipe pile 9, thereby adjusting the circumferential position of the lock of the steel pipe pile 9, so as to facilitate adjustment to the 12 o'clock direction (that is, the position located in the center upward), wherein at least one roller 21 in the multiple groups of rollers 21 is connected to a servo motor 27 as a driving wheel, and a mounting frame for mounting the servo motor 27 can be provided on the placement table 22, the servo motor 27 is mounted on the mounting frame and the output end of the servo motor 27 is coaxially connected to the center axis of the roller 21 through a coupling.

[0021] Reference Figure 1 Two guide rails 23 are provided on the base 1. The guide rails 23 are symmetrically distributed with the center line of the base 1 as the center. A work platform 24 is provided on the upper part of the base 1. The work platform 24 can be rectangular when viewed from above. The work platform 24 is supported on the base 1 by legs, and the work platform 24 is provided with rollers. The rollers are mounted on the legs of the work platform 24. The rollers can be I-shaped wheels, which are clamped on the outside of the guide rails 23 and slidably connected to the guide rails 23, so that the work platform 24 can slide along the guide rails 23 on the base 1. The work platform 24 is equipped with a drive unit 26. The drive unit 26 can be a reduction motor and can be electrically connected to the control module 8 to control whether the work platform 24 moves. The legs of the work platform 24 can be fixed with a mounting bracket. The reduction motor is mounted on the mounting bracket, and the output end of the reduction motor is coaxially fixed with the central axis of one of the rollers, thereby driving the roller to rotate, driving the other rollers to rotate, and even pushing the entire work platform 24 to slide along the guide rail 23 path.

[0022] Reference Figure 1 and Figure 2The working platform 24 is equipped with a lateral displacement unit 25, and the sawing adjustment mechanism 4 is connected to the working platform 24 through the lateral displacement unit 25. The sliding direction of the lateral displacement unit 25 is perpendicular to the length direction of the guide rail 23. The lateral displacement unit 25 can be a screw slide, which is fixed to the upper surface of the working platform 24 by bolts and nuts, so that the position of the sawing adjustment mechanism 4 can be adjusted through the screw slide to make the notch cutting more accurate.

[0023] Reference Figure 2 The double saw blade mechanism 5 is connected to the sawing adjustment mechanism 4. The double saw blade mechanism 5 includes two blades 51 and a sawing motor 52. The two blades 51 are designed to cut. The width of the cut notch can be adjusted by adjusting the distance between the two blades 51, which is more flexible and convenient. A rotating shaft 53 is passed through the center of the blade 51. The sawing motor 52 is connected to the sawing adjustment mechanism 4. The output end of the sawing motor 52 is coaxially fixed to the rotating shaft 53 through a coupling and is used to drive the two blades 51 to rotate and cut. A pressing assembly 54 is provided on the side wall of the blade 51, so that the blade 51 can be pressed tightly, reducing the possibility of the blade 51 shaking and improving the cutting accuracy.

[0024] Through the above arrangement, the steel pipe pile 9 is placed on the placement table 22, and the side wall of the roller 21 on the placement table 22 abuts against the side wall of the steel pipe pile 9. While limiting the steel pipe pile 9, the roller 21 can also be rotated to drive the steel pipe pile 9 to adjust the angle position of the lock buckle, so that cutting and slotting are performed when the lock buckle is at the 12 o'clock direction; a guide rail 23 is provided on the base 1, so that the working platform 24 slides along the guide rail 23. When the working platform 24 slides, the blade 51 slides accordingly after adjustment, thereby achieving the effect of cutting and slotting, and reducing the possibility of the slotting deviating from the pre-set path; secondly, the position and angle of the cutter can be adjusted before cutting through the sawing adjustment mechanism 4, thereby improving the accuracy of cutting and slotting. By providing two blades 51, the distance between the blades 51 can be adjusted, thereby adjusting the width of the slot, which is more flexible and adaptable to a variety of slot specifications. Moreover, the two blades 51 cut simultaneously, and only one cut is required to successfully slot, avoiding the instability of accuracy caused by secondary cutting, thereby improving the accuracy of slotting.

[0025] Reference Figure 2 The following is a detailed description of the sawing adjustment mechanism 4: The sawing adjustment mechanism 4 includes an adjustment frame 41, a rotary motor 42, a rotary adjustment shaft 43, a buffer spring 44, a cylinder 45, and a connecting block 46. The adjustment frame 41 is fixed to the sliding portion of the lateral displacement unit 25 (i.e., the slider of the screw slide) via bolts and nuts. The adjustment frame 41 can be composed of two upper and lower plates, with a connecting plate fixed between them. The rotary motor 42 is mounted on the upper surface of the upper plate of the adjustment frame 41 and is used to drive the rotary adjustment shaft 43. The output end of the rotary motor 42 is connected to the rotary adjustment shaft 43 via a transmission assembly, and is used to drive the rotary adjustment shaft 43 to drive the sawing motor 52 and the blade 51 to adjust the sawing angle. The transmission assembly can be configured as a worm gear structure, with the worm gear sleeved around the rotary adjustment shaft 43. Since the rotary adjustment shaft 43 is a prismatic structure, it can be snapped into the hole in the center of the worm gear. Rotation of the worm gear simultaneously drives the rotary adjustment shaft 43. The end of the worm gear is connected to the output end of the rotary motor 42 via a coupling, and the worm gear and the worm gear mesh with each other. Through this design, the worm gear structure can be used for transmission to change the rotation direction so that the rotating motor 42 can smoothly drive the rotating adjustment shaft 43 to rotate. Since the worm gear structure is an existing technology, it will not be described in detail here.

[0026] Reference Figure 2 The rotation adjustment shaft 43 vertically penetrates the upper and lower plates, and slides up and down with the plates. The lower end of the rotation adjustment shaft 43 is connected to the motor mounting plate 47 for installing the sawing motor 52. It is installed together with the rotation adjustment shaft 43, so that the rotation adjustment shaft 43 can slide up and down while driving the motor mounting plate 47 and even the sawing motor 52 to move up and down, and further adjust the position of the blade 51.

[0027] The rotary adjustment shaft 43 is prismatic, such as a rectangular parallelepiped. A section of the rotary adjustment shaft 43 near the end connected to the motor mounting plate 47 is cylindrical. This cylindrical section may be integrally formed, with only this section ground to a cylindrical shape, while the rest of the section is prismatic. The cylinder 45 is connected to the rotary adjustment shaft 43 via a connecting block 46. Specifically, the telescopic end of the cylinder 45 is fixedly connected to the connecting block 46. One end of the connecting block 46 is integrally formed with an annular sleeve that fits over the cylindrical section of the rotary adjustment shaft 43. The rest of the rotary adjustment shaft 43 is prismatic in structure, and serves to limit and engage the connecting block 46 (because both the upper and lower sections are prism-shaped, with only the cylindrical section of the connecting block 46 enclosing the annular sleeve). Thus, as the connecting block 46 and the telescopic end of the cylinder 45 move up and down together, the rotary adjustment shaft 43 is driven to move. Because the annular sleeve is mounted on the rotation adjustment shaft 43, it can rotate in conjunction with the rotation adjustment shaft 43 without hindering the rotation of the rotation adjustment shaft 43 driven by the rotary motor 42. A buffer spring 44 is mounted on the outside of the rotation adjustment shaft 43 to act as a buffer when the cylinder 45 drives the rotation adjustment shaft 43 up and down, reducing wear on the rotation adjustment shaft 43. The cylinder 45 can be connected to the control module 8 to control the up and down movement of the rotation adjustment shaft 43.

[0028] Since it is necessary to observe when the lock buckle falls on the designated cutting position, and the position to be grooved needs to be aligned with the blade 51 during cutting, deviation may easily occur if it is only based on visual inspection. Therefore, the following design is made: Reference Figure 1 and Figure 7 The present application further includes a photographic detection mechanism 6 and a control module 8. The photographic detection mechanism 6 includes a camera 61. The camera 61 is mounted on the lower surface of the work platform 24, with the camera end of the camera 61 pointing vertically downward. The camera 61 is located above the centerline of the placement table 22, so that the center of the viewing angle of the camera 61 falls on the centerline. When the lock is adjusted to the 12 o'clock position, it can coincide with the centerline of the lock, making it easier to analyze whether there is any deviation. The camera 61 and the servo motor 27 are electrically connected to the control module 8. The control module 8 is configured as follows: Analyze the centerline position of the lock buckle in the image captured by camera 61. The image can be obtained by extracting frames from the video captured by camera 61, or camera 61 can be a high-speed camera that captures multiple still images. A staff member can pre-load multiple images of the lock buckle as a reference chart to facilitate camera 61's recognition of the lock buckle. The centerline position of the lock buckle can be determined by connecting two edge lines of the lock buckle in the image and finding the midpoint of these two connected lines. The midpoint is the centerline; the centerline should be parallel to the centerline of the steel pipe pile 9 in the longitudinal direction.

[0029] The control module 8 analyzes whether the centerline of the lock buckle coincides with the center point of the image. If not, the servo motor 27 is controlled to drive the roller 21. If they coincide, the servo motor 27 is controlled to stop driving the roller 21. The center point of the image can be a line connecting the two diagonals of the image, and the intersection of the two diagonals is the image center point. The centerline position can be marked in red, and the center point of the image can be observed to see whether it falls within the centerline area to analyze whether it coincides. If so, there is no need to further adjust the angle of the steel pipe pile 9. If not, the angle is adjusted until the centerline of the lock buckle coincides with the center point of the image.

[0030] Through the above settings, by using the camera 61 to shoot and the control module 8 to analyze, whether the angle of the lock is aligned with the specified position can be analyzed more efficiently and accurately, further improving the accuracy of the cutting notch.

[0031] The photographic detection mechanism 6 includes a second camera 62, which is mounted on the lower surface of the motor mounting plate 47. The camera end of the second camera 62 faces vertically downward. The second camera 62 and the lateral displacement unit 25 are electrically connected to the control module 8. The control module 8 is configured as follows: A coordinate system is established based on the viewing center of the second camera 62 as the origin; The sliding direction of the lateral displacement unit 25 is defined as the X-axis direction, and the direction of the blade 51 relative to the camera 2 62 is defined as the positive direction of the X-axis; for example: the coordinates of the blade 51 (which can be the midpoint of the blade 51) are (5,0), and the coordinates of the camera 2 62 (which can be the center of the viewing angle of the camera 2 62) are the origin, i.e. (0,0).

[0032] Enter the distance data a between the second camera 62 and the blade 51 in the X-axis direction; according to the above example, a is 5, that is, the distance between the blade 51 and the second camera 62 is 5.

[0033] If the image information fed back by camera 2 62 is received, the center coordinates (x1, y1) of the lock of the steel pipe pile 9 in the image are analyzed and obtained; wherein, the image acquisition method is the same as that of camera 1 61, and the center of the lock can be the diagonal line connecting the lock in the image, and the intersection of the two diagonals is the center coordinate.

[0034] The center coordinates (x1, y1) of the lock of the steel pipe pile 9 and the distance b between the blade 51 are calculated; where, if x1 is a positive number, b=x1-a, and if x1 is a negative number, b=|x1|+a; Example: If the center coordinates of the lock are (3, 0), then x1 is a positive number and b is -2; if the center coordinates of the lock are (-3, 0) and x1 is a negative number, then b is the absolute value of x1 plus a, which is 8.

[0035] Control the lateral displacement unit 25 to move a distance b in the direction of the lock's center coordinates. Based on the above calculations, the specific distance to be moved has already been calculated. Once this distance is determined, the only thing left to do is analyze the direction of the lock's center coordinates relative to the blade 51 and move the blade 51 a corresponding distance in the direction of the lock's center coordinates to achieve alignment. For example, for the two aforementioned distances, the lock's center coordinates are (3,0) and (-3,0), both located in the negative direction of the blade 51's coordinates (5,0). Therefore, both require movement in the negative direction.

[0036] Through the above settings, the camera 2 62 can be used in conjunction with the control module 8 to make adjustments so that the blade 51 is facing the notch that needs to be cut. The control module 8 and the camera 2 62 can be more accurate than visual inspection by the human eye, thereby improving the accuracy of the cutting notch of this application.

[0037] In another embodiment of the present application: Reference Figure 2 The rotating motor 42 is electrically connected to the control module 8, and the control module 8 is configured as follows: Upon receiving image information from the camera, the system analyzes whether the edge of the locking buckle of the steel pipe pile 9 is parallel to the blade 51. If not, the system controls the rotary motor 42 to adjust the angle of the rotary adjustment shaft 43. Whether the edge is parallel can be determined by drawing a line along the edge and analyzing whether it intersects after infinite extension through the control module 8, or by moving the two lines together to see whether they overlap or are at an angle. If an angle is present, the angle of the rotary adjustment shaft 43 needs to be adjusted.

[0038] Through the above settings, the precision of the cutting notch can be improved so that the notch meets the expected angle setting.

[0039] Reference Figure 1 and Figure 3 The water-cooling lubrication mechanism 3 is used to cool and maintain a constant sawing temperature. The water-cooling lubrication mechanism 3 is located on the upper surface of the working platform 24, wherein its water spraying part is connected and extended through a pipe, and the water spraying end of the water spraying part is directed toward the double saw blade mechanism 5. The water-cooling lubrication mechanism 3 can be a spray emulsion, so as to maintain a constant sawing temperature while keeping the saw cut smooth and extending the service life of the accessories.

[0040] Reference Figure 3The water-cooling lubrication mechanism 3 includes a water tank 31, a water pump 32, and a nozzle 33. The water tank 31 is mounted on top of the work platform 24. Multiple filter plates 34 are provided inside the water tank 31. The filter plates 34 can be provided with fine pores to filter impurities in the water. The water supply and outlet pipes of the water tank 31 are connected to the two side walls opposite the water tank 31. The water pump 32's pumping port is connected to the water outlet pipe of the water pipe via a water pipe. The water outlet port of the water pump 32 is also connected to the nozzle 33 (i.e., the water spraying portion of the water-cooling lubrication mechanism 3) via a water pipe. The nozzle 33's spraying end faces the blade 51, allowing water spray cooling when the blade 51 is performing cutting operations. The water pump 32 can be connected to the control module 8 to control whether water spray cooling is performed.

[0041] The cam 543 is provided with a plurality of springs 546 which are provided on the outer wall of the cam 544 so as to prevent the cam 546 from sliding off the cam 544 and causing the cam 548 to slide inwardly and outwardly. A clamping screw passes through the clamping block 543 and connects to the rotating shaft 53, thereby tightening the blades 51 and the backing plate 541. Using the clamping screw for connection also facilitates disassembly and replacement, allowing adjustment of the spacing between the blades 51 (for example, replacing gaskets of different thicknesses). Protective covers 545 are provided on the outside of the two blades 51. Protective covers 545 extend from both ends of the rotating shaft 53. These protect the blades 51 from dust and other hazards, and also prevent accidental contact.

[0042] Since the above design needs to be disassembled and reassembled when adjusting the distance between the blades 51, which is slightly inconvenient, the following design is made In another embodiment of the present application: Reference Figure 5The double saw blade mechanism 5 includes two movable plates 55, each of which is penetrated by a blade 51. The side section of the movable plates 55 is T-shaped, and the opposite ends of the two movable plates 55 are T-shaped heads. That is, the two movable plates 55 are folded outwards where they are close to each other, and the folded sections are closely attached to the side walls of the blades 51, so as to facilitate contact with the blades 51. The outer wall of the rotating shaft 53 is provided with a threaded structure, and the centers of the two movable plates 55 are provided with threaded holes. The two movable plates 55 are penetrated by the rotating shaft 53 and are threadedly connected to the rotating shaft 53.

[0043] The clamping assembly 54 includes an abutment block 546 and a cover plate 547. The abutment block 546 abuts against the side wall of the blade 51 away from the sawing motor 52. The abutment block 546 is annularly sleeved on the movable plate 55, and the inner ring abuts against the side wall of the movable plate 55. The cover plate 547 abuts against the side wall of the abutment block 546. The interior of the cover plate 547 is hollow and one end is open, and its open end abuts against the abutment block 546. The cover plate 547 can be cylindrical and cover the outside of the movable plate 55. The depth of the internal cavity of the cover plate 547 should be greater than the length of the blade 51 passing through the tail of the movable plate 55, so as not to hinder the adjustment of the relative distance between the two movable plates 55. The end of the rotating shaft 53 passes through the cover plate 547 and is provided with a polygonal block 548 for twisting, which is used to rotate and adjust the relative distance between the two movable plates 55, thereby adjusting the distance between the two blades 51.

[0044] Reference Figure 5 , a connecting mechanism 7 is provided on the outside of the movable plate 55 and the blade 51, and the connecting mechanism 7 is connected to the output end of the sawing motor 52. A plurality of fixing rods 56 are provided at the end of the movable plate 55, and the fixing rods 56 are connected to the connecting mechanism 7. A plurality of guide rods 57 are penetrated by the folding section of the movable plate 55, and the positions of the abutment block 546 and the blade 51 corresponding to the guide rods 57 are provided with through holes for the guide rods 57 to penetrate. The through holes are located on the inner side of the position corresponding to the opening of the cover plate 547. Through the setting of the guide rods 57, the movable plate 55 can be displaced laterally along the guide rods 57, but the rotation of the movable plate 55 is restricted, effectively preventing the guide rods 57 from rotating due to the sawing motor 52 and even failing to abut closely against the blade 51.

[0045] Reference Figure 5The connecting mechanism 7 also includes a connecting plate body 71 and a plurality of penetrating rods 72. The connecting plate body 71 is fixed to the side wall of the blade 51 close to the sawing motor 52. The connecting plate can be cylindrical, hollow inside, and open at one end, and its open end abuts against the side wall of the blade 51. The connecting plate body 71 is covered on the outside of the movable plate 55. The fixing rod 56 is connected to the connecting plate body 71 and can be fixed by bolts and nuts. The movable plate 55 and the connecting plate body 71 can be connected together by the fixing rod 56, which fixes the movable plate 55. When adjusting the spacing between the two movable plates 55, twisting the polygonal block 548 will only adjust the displacement of the movable plate 55 away from the sawing motor 52, thereby adjusting the distance between the two movable plates 55.

[0046] A plurality of penetration rods 72 are connected to the connecting plate body 71 and are distributed along the circumference of the connecting plate body 71. The penetration rods 72 penetrate the two blades 51, thereby connecting the two blades 51. When the connecting plate body 71 rotates, the blades 51 can be driven to rotate together for cutting. The end of the penetration rod 72 extends out of the blade 51 (the blade 51 farther away from the sawing motor 52); a limiting plate 549 extends from the outer side of the cover plate 547. The limiting plate 549 can be integrally formed with the cover plate 547 or welded to the cover plate 547. The penetration rods 72 penetrate the limiting plate 549. In order to better press the blade 51 and the outer cover plate 547 and the abutment block 546 tightly, and better fix the connection limit plate 549 and the through rod 72, reduce shaking and displacement, etc., two limit blocks 58 are provided on both sides of the limit plate 549. The limit blocks 58 are sleeved on the through rod 72 and abut against the limit plate 549. The limit blocks 58 can be connected to the limit plate 549 by bolts and nuts, so that they can be connected and fixed while also being disassembled.

[0047] The penetrating rod 72 may also be provided with a scale, allowing the desired distance to be determined by observing the scale on the penetrating rod 72 during adjustment. Furthermore, the use of a rod-shaped penetrating rod, rather than a closed structure, facilitates observation. To prevent accidental contact, a transparent cover plate may be provided on the outside of the blade 51 (only the upper portion; the lower portion is used for cutting), providing both ease of observation and a degree of protection.

[0048] Since the sawing motor 52 vibrates when it is working, it may cause the components connected to it (such as the rotating shaft 53) to shake. If shaking, the rotating shaft 53 may produce a slight displacement. Therefore, it is necessary to tighten and lock the other end of the rotating shaft 53 (that is, the end without the polygonal block 548) to reduce the vibration of the rotating shaft 53. For this purpose, the following design is made: Reference Figure 5 and Figure 6The connecting mechanism 7 includes a locking assembly 73, which includes a connecting ring 731 and a piston 732. The piston 732 has a polygonal structure. The connecting ring 731 has a central hole, and the piston 732 is slidably connected to the connecting ring 731. The two ends of the connecting ring 731 are sealed to the output end of the sawing motor 52 and the connecting plate body 71, respectively. The outer wall of the piston 732 fits the hole wall of the connecting ring 731. Therefore, the hole of the connecting ring 731 should have a polygonal structure that fits the piston 732. The piston 732 has a locking groove on the side facing the rotating shaft 53. The end of the rotating shaft 53 (i.e., the end that inserts into the locking groove) has a polygonal structure (e.g., an octagon), so that it can be inserted into the locking groove after rotation. If the rotating shaft 53 does not align with the groove due to the rotation angle, the polygonal block 548 can be turned to fine-tune the angle to ensure smooth insertion or alignment with the locking groove. According to the above, in order to facilitate observation, one section of the connecting ring 731 can be set to a transparent plate-like material (such as an acrylic plate). For strength considerations, only a small section is set for observing whether it is inserted.

[0049] With the above arrangement, it is slightly inconvenient for a person to reach in and push the piston 732, so the following design is made: Reference Figure 6 The connecting ring 731 is provided with an inflation channel and an exhaust channel. The inflation channel is equipped with a one-way valve 733 (the direction of gas flow is from the outside of the connecting ring 731 to the inside of the connecting ring 731), and the exhaust channel is equipped with a two-way valve 734 (the direction of gas flow is from the inside of the connecting ring 731 to the outside of the connecting ring 731). An abutment ring 735 is provided on the outside of the connecting ring 731. The abutment ring 735 is sleeved on the connecting ring 731, and the sidewall of the abutment ring 735 generally does not contact the connecting ring 731. The interior of the abutment ring 735 is hollow, and the cavity can accommodate the extension of the one-way valve 733 and the two-way valve 734.

[0050] An airbag is provided on the side wall of the abutment ring 735 close to the connecting ring 731. After the airbag is inflated, it abuts against the connecting ring 731, thereby sealing the cavity inside the abutment ring 735. The airbag is connected to an air source through an air pipe, wherein the air source can be a separate air pump or an air pump that supplies air to the cylinder 45, and the air pump includes at least two ports for inflation and exhaust. An electromagnetic valve 736 is provided on the air pipe that connects the airbag to the air source, and the airbag is also provided with an air release pipe for deflation, and an air release valve 737 is installed on the air release pipe, so that the air release valve 737 can be controlled to deflate when sealing is not required.

[0051] According to the above arrangement, the connecting ring 731 can be inflated by sealing the inside of the abutting ring 735, thereby pushing the piston 732 inside the connecting ring 731 to move. The reason why the abutting ring 735 is not sealed and connected to the connecting ring 731 in advance is that the abutting ring 735 is provided with multiple air pipes, and the connecting ring 731 is to rotate along with the output end of the sawing motor 52. If it is directly sealed and connected, it is easy to cause the air pipe to be entangled, which hinders the work of the sawing notch.

[0052] After the abutment ring 735 is sealed, the piston 732 can be pushed to move by inflating the abutment ring 735, thereby automatically locking the rotating shaft 53. The specific settings are as follows: Reference Figure 6 and Figure 7 The abutment ring 735 is provided with an air inlet and an air outlet. The air outlet is connected to the air extraction port of the air source through the air pipe, and the air inlet is connected to the air outlet port of the air source through the air pipe, thereby realizing the circulation of gas.

[0053] One-way valve 1 733, one-way valve 2 734, solenoid valve 736, air release valve 737 and air source are electrically connected to control module 8. Control module 8 is configured as follows: If a user-triggered signal to control the air supply is received, the one-way valve 1 733 is controlled to open, the air release valve 737 and the one-way valve 2 734 are controlled to close, and the solenoid valve 736 is controlled to open for a time duration t1 and then close. The time duration t1 can be estimated by the staff based on the air supply rate and the volume of the airbag, and can be 2 seconds. The control module 8 can be equipped with multiple control buttons, which trigger the air supply signal, etc. After the two valve ports are closed, the solenoid valve 736 is opened to supply air to the airbag first. When the airbag is full of gas, the abutment ring 735 is sealed, so that the inside of the abutment ring 735 can be inflated through the air inlet hole of the abutment ring 735. The gas flows into the interior of the connecting ring 731 through the one-way valve 1 733, pushing the piston 732 to move, further locking the rotating shaft 53.

[0054] If a signal is received from the user to trigger the sawing operation, the air release valve 737 is controlled to open the valve port; the triggering principle is the same as above. The user triggers the sawing operation signal, which indicates that the rotating shaft 53 and the blade 51 have been adjusted and tightened, and sawing can be carried out. After the air release valve 737 is opened to release air, the abutment ring 735 and the connecting ring 731 no longer conflict with each other, and the two are rotationally connected so as not to hinder each other's work.

[0055] If a user-triggered air source release signal is received, the second check valve 734 is controlled to open and the first check valve 733 is controlled to close. The triggering principle is the same as above. After sawing, the air source can be exhausted through the second check valve 734, and the first check valve 733 is closed, so no more air can enter. Therefore, only the air in the connecting ring 731 is exhausted, thereby displacing the piston 732 to the side and no longer locking the rotating shaft 53.

[0056] With the above arrangement, it is impossible to sense whether the piston 732 is in contact with the rotating shaft 53 or whether it is tightly against the rotating shaft 53. Therefore, the following design is made: In another embodiment of the present application: A displacement sensor 738 is disposed within the connecting ring 731. Since the piston 732 abuts within the connecting ring 731, the displacement sensor 738 should be a contact-type displacement sensor 738 with its sensing end facing the piston 732. Alternatively, the displacement sensor 738 may be embedded within the connecting ring 731, and the outer wall of the piston 732 abutting at least the displacement sensor 738 may be a metal structure, such as a metal sheet embedded in the outer wall of the piston 732. The displacement sensor 738 is electrically connected to the control module 8. The control module 8 is configured to control the air source to stop supplying air if the data feedback from the displacement sensor 738 is ≥ c, where c is a preset value indicating that the piston 732 has abutted the rotating shaft 53. The specific value of c can be calculated by a staff member, such as 8 mm, and is generally the length to ensure that the piston 732 abuts the rotating shaft 53. If the piston 732 is merely abutted but not inserted, this can be observed through the transparent plate provided above, and then the polygonal block 548 is twisted to manually push it in.

[0057] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A reciprocating automatic slotting machine for long strips of cofferdam pipe piles, characterized by: The saw blade mechanism is a double-saw blade mechanism for cutting and grooving, and the circumferential rotation adjustment mechanism includes a placement table fixed to the base and a plurality of rollers installed on the placement table, at least one of the plurality of rollers is connected to a servo motor, and each roller group includes two rollers symmetrically arranged with the center line of the placement table as the symmetry axis, and the rollers are tightly attached to the outer wall of the steel pipe pile to be cut, two guide rails are symmetrically arranged on the base, a working platform is provided on the upper part of the base, a roller is provided at the bottom end of the working platform and is slidably connected to the guide rail by the roller, and a driving unit is installed on the working platform, and the output end of the driving unit is connected to the rotating shaft of the roller; the water-cooling and lubricating mechanism is located on the upper surface of the working platform, connected to its water spraying part through a pipeline, and the water spraying end of the water spraying part faces the double-saw blade mechanism; The working platform is equipped with a lateral displacement unit, and the sawing adjustment mechanism is connected to the working platform through the lateral displacement unit, and the sliding direction of the lateral displacement unit is perpendicular to the length direction of the guide rail; the double saw blade mechanism is connected to the sawing adjustment mechanism, and the double saw blade mechanism includes two blades and a sawing motor, a rotating shaft is passed through the center of the blade, the output end of the sawing motor is coaxially fixed with the rotating shaft and the sawing motor is connected to the sawing adjustment mechanism, and a clamping assembly is provided on the side wall of the blade.

2. The cofferdam pipe pile long strip locking reciprocating automatic slotting machine according to claim 1, characterized in that:

7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is pivotally connected to said linking rod. said linking rod has a round shank to contact with said linking rod.

3. The cofferdam pipe pile long strip locking reciprocating automatic slotting machine according to claim 2, characterized in that: The apparatus comprises a photographic detection mechanism and a control module. The photographic detection mechanism comprises a camera 1, which is mounted on the lower surface of the work platform and located above the centerline of the placement table. The camera end of the camera 1 is vertically downward. The camera 1 and the servo motor are electrically connected to the control module. The control module is configured as follows: Analyze the centerline position of the lock buckle in the image captured by camera 1; Analyze whether the center line position of the lock coincides with the center point of the image. If not, control the servo motor to drive the roller. If so, control the servo motor to stop driving the roller.

4. The cofferdam pipe pile long strip locking reciprocating automatic slotting machine according to claim 3, characterized in that: The photographic detection mechanism includes a second camera, which is mounted on the lower surface of the motor mounting plate, with the camera end of the second camera facing vertically downward. The second camera and the lateral displacement unit are electrically connected to a control module, and the control module is configured as follows: Establish a coordinate system based on the center of the second camera perspective as the origin; Define the sliding direction of the lateral displacement unit as the X-axis direction, and define the direction of the blade relative to camera 2 as the positive direction of the X-axis; Record the distance data a between the second camera and the blade in the X-axis direction; If the image information fed back by camera 2 is received, the center coordinates (x1, y1) of the lock buckle of the steel pipe pile in the image are analyzed and obtained; Calculate the distance b between the center of the steel pipe pile lock (x1, y1) and the blade; if x1 is a positive number, then b = x1-a; if x1 is a negative number, then b = |x1| + a; Control the lateral displacement unit to move a distance b toward the center coordinate of the lock.

5. The cofferdam pipe pile long strip locking reciprocating automatic slotting machine according to claim 4, characterized in that: The water-cooling lubrication mechanism includes a water tank, a water pump and a nozzle. The water tank is installed on the upper part of the work platform. A plurality of filter plates are arranged inside the water tank. The water supply pipe and the water outlet pipe of the water tank are respectively connected to the two opposite side walls of the water tank. The water suction port of the water pump is connected to the water outlet pipe of the water tank through a water pipe. The water outlet port of the water pump is connected to the nozzle through a water pipe. The spraying end of the nozzle is facing the blade.

6. The cofferdam pipe pile long strip locking reciprocating automatic slotting machine according to claim 5, characterized in that: The clamping assembly includes a pad, a pressure plate, a clamping block and a clamping screw. The pad is located between the two blades, and the pressure plate abuts against the side walls of the two blades facing away from each other. The output end of the sawing motor and the outer side of the rotating shaft are sleeved with an adapter shaft, and the output end of the sawing motor and the rotating shaft are coaxially connected through the adapter shaft. The clamping block abuts against the rotating shaft, and the clamping screw passes through the clamping block and is connected to the rotating shaft. Protective covers are provided on the outer sides of the two blades, and protective covers are passed through both ends of the rotating shaft.

7. The cofferdam pipe pile strip locking reciprocating automatic slotting machine according to claim 5, characterized in that: The double saw blade mechanism includes two movable plates, two blades are respectively passed through the two movable plates, the outer wall of the rotating shaft is provided with a threaded structure, the two movable plates are passed through the rotating shaft and are threadedly connected to the rotating shaft, a section of the two movable plates close to each other is folded outward, and the folded section abuts against the side wall of the blade, and the side section of the movable plate is T-shaped; The clamping assembly includes an abutment block and a cover plate, wherein the abutment block abuts against the side wall of the blade away from the sawing motor, the abutment block is annularly sleeved on the movable plate, the cover plate abuts against the side wall of the abutment block, the cover plate is hollow inside and open at one end, the open end of the cover plate abuts against the abutment block, and the inner depth of the cover plate is greater than the length of the movable plate through which the blade is passed; the end of the rotating shaft is provided with a polygonal block for twisting; A connecting mechanism is provided on the outer side of the movable plate and the blade, and the connecting mechanism is connected to the output end of the sawing motor. A plurality of fixing rods are provided at the end of the movable plate and the fixing rods are connected to the connecting mechanism. A plurality of guide rods are passed through the folding sections of the two movable plates. The positions of the abutment block and the blade corresponding to the guide rods are provided with through holes for the guide rods to pass through, and the through holes are located on the inner side of the position corresponding to the opening of the cover plate.

8. The cofferdam pipe pile long strip locking reciprocating automatic slotting machine according to claim 7, characterized in that: The connecting mechanism includes a connecting plate body and multiple penetrating rods. The connecting plate body is hollow inside and open at one end. The open end abuts against the side wall of the blade and is covered on the movable plate. The fixed rod is connected to the connecting plate body. Multiple penetrating rods are connected to the connecting plate body and are arranged along the circumferential direction. The penetrating rod passes through the two blades, and the end extends away from the blade of the sawing motor. A limiting plate extends outward from the outer side of the cover plate. The penetrating rod passes through the limiting plate, and the two side walls of the limiting plate abut against two limit blocks, which are sleeved on the penetrating rod.

9. The cofferdam pipe pile strip locking reciprocating automatic slotting machine according to claim 8, characterized in that: The connecting mechanism includes a locking assembly, which includes a connecting ring and a piston. The piston is a polygonal structure. The two ends of the connecting ring are respectively sealed with the output end of the sawing motor and the connecting plate body. The shape of the central opening of the connecting ring fits the outer wall of the piston. The rotating shaft passes through and extends out of the connecting plate body. The end of the rotating shaft passing through the connecting plate body is a polygonal structure. A locking groove that fits the end of the rotating shaft is opened on the side of the piston facing the rotating shaft, and the end of the rotating shaft is inserted into the locking groove. The connecting ring is provided with an inflation pipe and an outlet pipe, the inflation pipe is provided with a first one-way valve, the outlet pipe is provided with a second one-way valve, an abutment ring is provided on the outside of the connecting ring, the connecting ring and the abutment ring are rotatably connected, the interior of the abutment ring is hollow and covers the first one-way valve and the second one-way valve; The abutment ring is provided with an airbag close to the side wall of the connecting ring. When the airbag is inflated, it abuts against the connecting ring and seals the internal cavity of the abutment ring. The airbag is connected to an air source through an air pipe, and the air pipe connected to the airbag is provided with an electromagnetic valve. The airbag is provided with an air release pipe, and the air release pipe is connected to the air release valve. The abutment ring is provided with an air inlet and an air outlet. The air inlet is connected to the air outlet port of the air source through the air pipe, and the air outlet is connected to the air extraction port of the air source through the air pipe. The one-way valve 1, the one-way valve 2, the air release valve, the electromagnetic valve and the air source are electrically connected to a control module. The control module is configured as follows: If a signal from the user triggering the control gas source is received, the one-way valve 1 is controlled to open, the air relief valve and the one-way valve 2 are controlled to close, and the solenoid valve is controlled to open for a time period of t1 and then close; t1 is a preset value; If a signal is received from the user to start sawing, the air relief valve is controlled to open the valve port; If a signal of a control gas source deflation triggered by a user is received, the second one-way valve is controlled to open the valve port, and the first one-way valve is controlled to close the valve port.

10. The cofferdam pipe pile long strip locking reciprocating automatic slotting machine according to claim 9, characterized in that: A displacement sensor is provided inside the connecting ring, with the sensing end of the displacement sensor facing the piston. The outer wall of the piston at least abutting against the displacement sensor is a metal structure. The displacement sensor is electrically connected to a control module. The control module is configured to: if the data fed back by the displacement sensor is ≥c, the air source is controlled to stop supplying air; where c is a preset value indicating that the piston has pressed against the rotating shaft.

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