A fast splicing head device

Abstract

The utility model discloses a kind of fast pile head cutting device, it is related to pile foundation demolition technical field, wherein, snap ring is circular ring structure, including two arc-shaped clamps relatively rotatable open and close, arc-shaped clamp relatively clamping can be set on the pile body of the pile head to be cut and fixed;Mechanical arm one end is relatively rotatably installed on snap ring, cutting saw is installed on the other end of mechanical arm, mechanical arm relatively snap ring rotation can drive cutting saw to move, cutting saw can simultaneously carry out cutting operation;Limiting device is installed on snap ring, limiting pointer is movably installed on limiting device, limiting pointer can be fixed on the rotating stroke of mechanical arm relative to limiting device, and mechanical arm relatively snap ring rotation process is linked control cutting saw to stop cutting operation when touching limiting pointer. By the technical scheme of the utility model, the cutting speed is greatly improved, the construction efficiency of CFG pile cutting is effectively improved, the pile body cutting effect and cutting quality are improved, and the overall project progress is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation demolition technology, and in particular to a rapid pile head cutting device. Background Technology

[0002] CFG piles (cement fly ash gravel piles), a common type of cast-in-place concrete piles, are made of cement, fly ash, gravel, stone chips or sand mixed with water, and possess high bond strength. In the field of foundation treatment, they offer significant advantages: rapid construction speed, effectively shortening the construction period; relatively low project cost, reducing costs by approximately 20%-30% compared to other pile types in the foundation treatment of multi-story residential buildings; and easy control of pile quality, reliably improving the bearing capacity of the foundation, reducing foundation settlement, and reinforcing the originally weak foundation to a level that meets the building's load requirements.

[0003] However, during the construction of CFG piles, impurities such as mud and laitance can easily get mixed into the top of the pile during concrete pouring, making it difficult for the concrete strength at the pile top to meet design standards. To ensure pile quality, the pouring height is usually controlled slightly above the design pile top elevation during construction. Before proceeding with foundation structure construction, the portion of the pile head exceeding the design elevation must be cut off to comply with design specifications. After cutting off the pile head, a flat pile top surface is formed, which helps the subsequently laid cushion layer to efficiently transfer the forces on the foundation to the CFG pile, ensuring the stability of the foundation structure.

[0004] Currently, traditional CFG pile head cutting tools and methods have significant drawbacks. Traditional pile head cutting equipment requires cutting the pile body in three directions in stages. This operation method makes it difficult to accurately control the position of the cutting surface to be on the same plane, which easily leads to unevenness of the cutting surface. This not only affects the flatness of the pile top but may also have an adverse effect on the transmission of foundation forces, reducing the overall quality of foundation treatment. Utility Model Content

[0005] To address the aforementioned issues, this invention provides a rapid pile head cutting device. The device is fixed to the CFG pile body using a retaining ring. A robotic arm drives a cutting saw to cut the pile body. A limit switch controls the rotation of the robotic arm and the cutting operation of the cutting saw in a coordinated manner, significantly increasing the cutting speed and improving the construction efficiency of CFG pile cutting. Simultaneously, it ensures a flat surface on the pile top after cutting, enhancing the pile cutting effect and quality, and accelerating the overall project progress.

[0006] To achieve the above objectives, this utility model provides a rapid pile head cutting device, comprising: a retaining ring, a robotic arm, a cutting saw, and a limiter;

[0007] The retaining ring is a circular ring structure, including two arc-shaped retaining slots that can be rotated and opened relative to each other. The arc-shaped retaining slots can be engaged and fixed onto the pile body of the pile head to be cut.

[0008] One end of the robotic arm is rotatably mounted on the retaining ring, and the cutting saw is mounted on the other end of the robotic arm. The rotation of the robotic arm relative to the retaining ring can drive the cutting saw to move, and the cutting saw can perform cutting operations simultaneously.

[0009] The limiter is mounted on the retaining ring, and a limit pointer is movably mounted on the limiter. The limit pointer can be fixed relative to the limiter during the rotation stroke of the robotic arm, and when the robotic arm touches the limit pointer during its rotation relative to the retaining ring, it will trigger a linkage control to stop the cutting operation of the cutting saw.

[0010] In the above technical solution, preferably, it includes three sets of robotic arms, and the three sets of robotic arms are symmetrically arranged relative to the retaining ring, with a set of cutting saws installed on each set of robotic arms.

[0011] In the above technical solution, preferably, the robotic arm and the retaining ring are connected by a transmission component, the transmission component is connected to the output end of a servo motor, and the servo motor is controlled by a servo motor driver, so that the rotation of the robotic arm relative to the retaining ring can be driven by the servo motor.

[0012] In the above technical solution, preferably, the diameter of the retaining ring is matched and set according to the diameter of the pile head to be cut, and the shape and size of the three sets of robotic arms and the cutting radius of the cutting saw are designed in coordination according to the diameter of the pile head to be cut, so that the three sets of robotic arms can drive the cutting saw to perform a cutting operation on the pile head to be cut to a preset depth.

[0013] In the above technical solution, preferably, the limiter is marked with a limit scale, and the limit pointer is adjusted to a preset limit scale according to the diameter of the pile head to be cut, the shape and size of the robotic arm and the cutting radius of the cutting saw, so that the robotic arm can perform a cutting operation on the pile head to be cut to a preset depth when it touches the limit pointer.

[0014] In the above technical solution, preferably, the cutting saw includes a saw blade, a transmission gear and a drive motor. The saw blade is connected to the drive motor through the transmission gear. The drive motor is fixedly installed on or inside the robotic arm. The drive motor can be turned off by the robotic arm in linkage control with the touch state of the limit pointer.

[0015] In the above technical solution, preferably, the cutting saw further includes a protective cover, which is disposed on the outside of the saw blade.

[0016] In the above technical solution, preferably, the three sets of robotic arms and the cutting saw are on the same plane relative to the retaining ring.

[0017] In the above technical solution, preferably, the rapid pile head cutting device further includes a motion signal sensor and a controller. The motion signal sensor is installed relative to the transmission component and is used to collect the rotation direction and rotation angle data of the robotic arm. The motion signal sensors and servo motor drivers corresponding to the three sets of robotic arms are all connected to the controller.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: the device is fixed to the CFG pile body by the retaining ring, and the cutting saw is driven by the robotic arm to cut the pile body. The synchronous cutting control of the three sets of robotic arms can significantly improve the cutting speed. The rotation process of the robotic arm and the cutting operation of the cutting saw are linked and controlled by the limiter, which effectively improves the construction efficiency of CFG pile cutting. At the same time, it can ensure that the top of the pile after cutting forms a flat surface, improve the cutting effect and cutting quality of the pile body, and speed up the overall project progress. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the locking structure of a rapid pile head cutting device disclosed in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the opening structure of a rapid pile head cutting device disclosed in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the initial cutting state of the rapid pile head cutting device disclosed in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the cutting state of the rapid pile head cutting device disclosed in one embodiment of the present invention;

[0023] Figure 5 This is an enlarged structural schematic diagram of a limiter disclosed in one embodiment of the present utility model.

[0024] In the diagram, the correspondence between the components and the reference numerals is as follows:

[0025] 1. Snap ring, 11. Arc-shaped bayonet, 2. Robotic arm, 3. Cutting saw, 31. Transmission gear, 32. Protective cover, 33. Saw blade, 4. Limiter, 41. Limit pointer, 42. Limit scale, 5. Pile head to be cut. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings:

[0028] like Figure 1 and Figure 2 As shown, a rapid pile head cutting device according to the present invention includes: a retaining ring 1, a robotic arm 2, a cutting saw 3, and a limiter 4;

[0029] The retaining ring 1 is a circular ring structure, including two arc-shaped retaining openings 11 that can be rotated and opened relative to each other. The arc-shaped retaining openings 11 can be fitted and fixed onto the pile body of the pile head 5 to be cut.

[0030] One end of the robotic arm 2 is rotatably mounted on the retaining ring 1, and the cutting saw 3 is mounted on the other end of the robotic arm 2. The rotation of the robotic arm 2 relative to the retaining ring 1 can drive the cutting saw 3 to move, and the cutting saw 3 can perform cutting operations at the same time.

[0031] The limiter 4 is installed on the retaining ring 1, and the limit pointer 41 is movably installed on the limiter 4. The limit pointer 41 can be fixed relative to the limiter 4 during the rotation stroke of the robotic arm 2, and when the robotic arm 2 touches the limit pointer 41 during the rotation of the robotic arm 2 relative to the retaining ring 1, the cutting saw 3 is linked to stop the cutting operation.

[0032] In this embodiment, the device is fixed to the CFG pile body by the retaining ring 1. The mechanical arm 2 drives the cutting saw 3 to cut the pile body. The rotation process of the mechanical arm 2 and the cutting operation of the cutting saw 3 are linked and controlled by the limiter 4, which greatly improves the cutting speed and effectively improves the construction efficiency of CFG pile cutting. At the same time, it can ensure that the top of the pile after cutting forms a flat surface, improve the cutting effect and cutting quality of the pile body, and speed up the overall project progress.

[0033] Specifically, during the implementation process, the retaining ring 1 is fixed on the pile body at a predetermined height. Then, the robotic arm 2 drives the cutting saw 3 to move towards the pile body, and at the same time, the cutting saw 3 is turned on to cut the pile foundation. When the robotic arm 2 touches the limit pointer 41 of the preset limit angle, the robotic arm 2 stops rotating, the cutting saw 3 stops cutting, and the cutting operation of the pile foundation is completed.

[0034] like Figure 3 and Figure 4As shown, in the above embodiment, preferably, the rapid pile head cutting device includes three sets of mechanical arms 2, and the three sets of mechanical arms 2 are symmetrically arranged relative to the retaining ring 1, and each set of mechanical arms 2 is equipped with a set of cutting saws 3.

[0035] During implementation, the three sets of robotic arms 2 simultaneously drive the cutting saws 3 on them to rotate relative to the pile body. The three sets of cutting saws 3 start cutting from different positions on the pile body, and the cutting depth of the cutting saws 3 gradually increases as the robotic arms 2 continue to rotate.

[0036] Furthermore, by pre-designing the length, shape, and swing angle of the robotic arm 2, it is possible to increase the cutting depth and shift the cutting angle of the robotic arm 2 relative to the pile in the center of the retaining ring 1 during rotation. That is, the cutting process is not a vertical cutting from the side of the pile towards the central axis of the pile, but a cutting process that gradually deepens the cutting depth towards the central axis. This increases the cutting surface of the three sets of cutting saws 3, so that when the robotic arm 2 touches the limit pointer 41, the three sets of cutting saws 3 can basically complete the cutting operation on the pile.

[0037] In the above embodiment, preferably, the robotic arm 2 and the retaining ring 1 are connected by a transmission component, which is connected to the output end of the servo motor. The servo motor is controlled by a servo motor driver, so that the rotation of the robotic arm 2 relative to the retaining ring 1 can be driven by the servo motor.

[0038] Specifically, the rotation process between the robotic arm 2 and the retaining ring 1 can be stably achieved through the connection of transmission components such as gears, rather than relying solely on the connecting parts between the robotic arm 2 and the retaining ring 1. Furthermore, by adding a servo motor, the rotation process between the robotic arm 2 and the retaining ring 1 can be driven by the servo motor, resulting in a high degree of automation and reduced labor. Simultaneously, the servo motor can also be deactivated, allowing the robotic arm 2 to rotate relative to the retaining ring 1 using other external forces, such as manual rotation by an operator on-site, thus improving the flexibility of rotational displacement control.

[0039] In the above embodiment, preferably, the diameter of the retaining ring 1 is matched with the diameter of the pile head 5 to be cut, and the shape and size of the three sets of robotic arms 2 and the cutting radius of the cutting saw 3 are designed in coordination with the diameter of the pile head 5 to be cut, so that the three sets of robotic arms 2 can drive the cutting saw 3 to perform a cutting operation at a preset depth on the pile head 5 to be cut.

[0040] Specifically, during implementation, the retaining ring 1 can be fixed to the pile head 5 to be cut using clamps. For pile heads 5 of different sizes, quick pile head cutting devices with retaining rings 1 of different specifications can be set up. Each specification of retaining ring 1 can be used for pile heads 5 with a certain diameter range.

[0041] Furthermore, for each specification of snap ring 1, the robotic arm 2 and the cutting saw 3 also need to be adapted to the rapid pile head cutting device so that the corresponding robotic arm 2 and the cutting saw 3 can effectively cut the pile head 5 to be cut within the corresponding diameter range.

[0042] like Figure 5 As shown, in the above embodiment, preferably, the limiter 4 is marked with a limit scale 42, and the limit pointer 41 is adjusted to the preset limit scale 42 according to the diameter of the pile head 5 to be cut, the shape and size of the robotic arm 2 and the cutting radius of the cutting saw 3, so that the robotic arm 2 can perform a cutting operation at a preset depth of the pile head 5 when it touches the limit pointer 41.

[0043] During implementation, for each specification of the rapid pile head cutting device, tests can be conducted in advance based on each diameter of the pile head 5 to be cut. The limit scale 42 of the robotic arm 2 relative to the limiter 4 when the cutting saw 3 completes the required cutting operation can be determined and recorded. Thus, before cutting the pile head 5, the limit pointer 41 is moved to the corresponding limit scale 42 according to the diameter of the pile body. This allows the cutting operation to stop when the robotic arm 2 touches the limit pointer 41, preventing safety accidents caused by the high-speed rotating robotic arm 2, and also avoiding safety accidents caused by operators needing to perform multiple control operations simultaneously.

[0044] In the above embodiment, preferably, the cutting saw 3 includes a saw blade 33, a transmission gear 31 and a drive motor. The saw blade 33 is connected to the drive motor through the transmission gear 31. The drive motor is fixedly installed on or inside the robotic arm 2. The drive motor can be turned off by the touch state of the robotic arm 2 relative to the limit pointer 41.

[0045] In this implementation process, the structure of the cutting saw 3 is modified and integrated with the robotic arm 2, so that the cutting operation can be performed synchronously during the rotation and swing of the robotic arm 2.

[0046] In the above embodiments, preferably, the cutting saw 3 further includes a protective cover 32, which is placed on the outside of the saw blade 33 to reduce the splashing of particles and dust during the pile head cutting process, and at the same time reduce the risk of accidents when the operator accidentally touches the cutting saw 3.

[0047] In the above embodiment, preferably, the three sets of robotic arms 2 and the cutting saw 3 are on the same plane relative to the retaining ring 1, so that the cut surfaces of the three sets of robotic arms 2 and the cutting saw 3 after synchronously cutting the pile head 5 are on the same plane, ensuring the flatness of the pile top plane and reducing subsequent cleaning operations.

[0048] In the above embodiment, preferably, the rapid pile head cutting device further includes a motion signal sensor and a controller. The motion signal sensor is installed relative to the transmission component and is used to collect the rotation direction and rotation angle data of the robotic arm 2. The motion signal sensors and servo motor drivers corresponding to the three sets of robotic arms 2 are all connected to the controller.

[0049] During implementation, based on the motion data of the robotic arm 2 collected by the motion signal sensor, the controller can synchronously control the other two sets of robotic arms 2 to move in the same way according to the motion mode of any one of the robotic arms 2, thereby realizing the synchronous cutting operation of the three sets of robotic arms 2.

[0050] In the above embodiment, preferably, the servo motor driver controls the servo motor to operate according to the control command of the controller, which can drive the robotic arm 2 to rotate relative to the retaining ring 1. The controller sends control commands to the servo motor drivers corresponding to the other two sets of robotic arms 2 according to the motion signal of one set of robotic arms 2, so that when one set of robotic arms 2 is manually rotated, the other two sets of robotic arms 2 can be controlled to rotate synchronously, thereby realizing the synchronous movement of the three sets of robotic arms 2.

[0051] In the implementation process, in addition to the electrical synchronization control technology of motion signal sensors and controllers mentioned above, the synchronous rotation control of the three sets of robotic arms 2 can also be achieved through the following mechanical methods.

[0052] Specifically, to achieve synchronized movement of the three sets of robotic arms 2, linkage rods are installed between them. These linkage rods can have the same shape as the retaining ring 1, or they can have other shapes to accommodate the overall cutting operation of the rapid pile head cutting device. Furthermore, to accommodate the openable / closable structure of the retaining ring 1, the linkage rods can be disassembled or disconnected.

[0053] With the above-mentioned mechanical linkage connection method, during the cutting operation, while one set of robotic arms 2 rotates relative to the retaining ring 1, the linkage can drive the other two sets of robotic arms 2 to rotate synchronously.

[0054] In addition, a groove or track can be provided on the retaining ring 1, and the three sets of robotic arms 2 can be slidably installed in the groove or track. When the robotic arm 2 slides to a certain desired position, the robotic arm 2 can be fixed relative to the retaining ring 1, such as by fixing with a nut or by fixing with a groove.

[0055] By setting up a chute or slide, and combining the linkage rods connecting the three sets of robotic arms 2, and because the retaining ring 1 is a circular structure, the three sets of robotic arms 2 can rotate synchronously along the chute or slide to be cut. In this way, the position that one set of cutting saws 3 did not reach can be completely cut by the rotation of the three sets of robotic arms 2, driving the other two sets of robotic arms 2 to complete the cut. Thus, regardless of the shape and swing angle of the robotic arms 2, the pile head 5 to be cut can be circularly cut within the cutting depth of the cutting saw 3.

[0056] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid pile head cutting device, characterized in that, include: Snap rings, robotic arms, cutting saws, and limit switches; The retaining ring is a circular ring structure, including two arc-shaped retaining slots that can be rotated and opened relative to each other. The arc-shaped retaining slots can be engaged and fixed onto the pile body of the pile head to be cut. One end of the robotic arm is rotatably mounted on the retaining ring, and the cutting saw is mounted on the other end of the robotic arm. The rotation of the robotic arm relative to the retaining ring can drive the cutting saw to move, and the cutting saw can perform cutting operations simultaneously. The limiter is mounted on the retaining ring, and a limit pointer is movably mounted on the limiter. The limit pointer can be fixed relative to the limiter during the rotation stroke of the robotic arm, and when the robotic arm touches the limit pointer during its rotation relative to the retaining ring, it will trigger a linkage control to stop the cutting operation of the cutting saw.

2. The rapid pile head cutting device according to claim 1, characterized in that, It includes three sets of robotic arms, and the three sets of robotic arms are symmetrically arranged relative to the retaining ring. Each set of robotic arms is equipped with a set of cutting saws.

3. The rapid pile head cutting device according to claim 2, characterized in that, The robotic arm is connected to the retaining ring via a transmission assembly, which is connected to the output of a servo motor. The servo motor is controlled by a servo motor driver, enabling the rotation of the robotic arm relative to the retaining ring to be driven by the servo motor.

4. The rapid pile head cutting device according to claim 3, characterized in that, The diameter of the retaining ring is matched and set according to the diameter of the pile head to be cut. The shape and size of the three sets of robotic arms and the cutting radius of the cutting saw are designed in coordination according to the diameter of the pile head to be cut, so that the three sets of robotic arms can drive the cutting saw to perform a cutting operation on the pile head to be cut to a preset depth.

5. The rapid pile head cutting device according to claim 4, characterized in that, The limiter is marked with a limit scale, and the limit pointer is adjusted to a preset limit scale according to the diameter of the pile head to be cut, the shape and size of the robotic arm and the cutting radius of the cutting saw, so that the robotic arm can perform a cutting operation on the pile head to be cut to a preset depth when it touches the limit pointer.

6. The rapid pile head cutting device according to claim 4, characterized in that, The cutting saw includes a saw blade, a transmission gear, and a drive motor. The saw blade is connected to the drive motor via the transmission gear. The drive motor is fixedly mounted on or inside the robotic arm. The drive motor can be turned off by the robotic arm in conjunction with the touch state of the limit pointer.

7. The rapid pile head cutting device according to claim 6, characterized in that, The cutting saw also includes a protective cover, which is placed over the outside of the saw blade.

8. The rapid pile head cutting device according to claim 4, characterized in that, The three sets of robotic arms and the cutting saw are on the same plane relative to the retaining ring.

9. The rapid pile head cutting device according to claim 3, characterized in that, It also includes motion signal sensors and a controller. The motion signal sensors are mounted relative to the transmission assembly and are used to collect the rotation direction and rotation angle data of the robotic arm. The motion signal sensors and servo motor drivers corresponding to the three sets of robotic arms are all connected to the controller.

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