An end plate nut disassembly and assembly mechanism and an end plate disassembly and assembly machine

Abstract

This invention relates to the field of pipe pile disassembly and assembly technology, and in particular to an end plate nut disassembly and assembly mechanism and an end plate disassembly and assembly machine. The end plate nut disassembly and assembly mechanism includes: a mounting frame, on which a base plate is rotatably connected, and the base plate is provided with several frames; a rotating device for driving the base plate to rotate; a disassembly and assembly device, which includes a position adjustment component, a sleeve, and a drive component; an adaptive clamping device, which includes a snap-fit ​​block and an adaptive compensation component; and a fixing device, which includes an adsorption component, a vibration triggering component, and an anti-loosening component. This invention achieves automatic centering during the nut insertion stage through the cooperation of the snap-fit ​​block and the compensation component, and forms a dynamic clamping enhancement mechanism with the vibration triggering anti-loosening component, effectively avoiding stripping and detachment; at the same time, the adsorption component and the snap-fit ​​block provide initial clamping force, and the anti-loosening component automatically strengthens the clamping when rotational vibration is detected.

Description

Technical Field

[0001] This invention relates to the field of pipe pile disassembly and assembly technology, specifically to an end plate nut disassembly and assembly mechanism and an end plate disassembly and assembly machine. Background Technology

[0002] The dismantling and assembly of post-tensioned large pipe piles requires the use of a fixed workbench. During dismantling and assembly, the pipe mold (workpiece) is fixed, and various types of automated dismantling and assembly equipment are used around the pipe mold for dismantling and assembly. When dismantling and assembling the end plates of the pipe pile, an automated end plate nut dismantling and assembly mechanism (i.e., tightening gun and sleeve) is used to dismantle and assemble the nuts.

[0003] Existing end plate nut disassembly and assembly mechanisms have the following significant drawbacks: when disassembling the nut using a tightening gun and sleeve, there is a risk of stripping due to misalignment between the nut and sleeve; even a slight misalignment between the nut axis and the sleeve axis can easily cause thread damage. Furthermore, the nut is rotated during disassembly and assembly, which can lead to loosening. Current technology relies solely on one-time mechanical clamping, which is prone to clamping force attenuation under vibration. To overcome these problems, manual adjustment or secondary tightening is required, making it difficult to adapt to automated operation requirements. Summary of the Invention

[0004] The purpose of this invention is to provide an end plate nut disassembly and assembly mechanism and an end plate disassembly and assembly machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] On the one hand, an end plate nut disassembly and assembly mechanism is provided, comprising:

[0007] Mounting frame, the mounting frame is rotatably connected to a base plate, the base plate is provided with a plurality of racks;

[0008] A rotating device, which is used to drive the substrate to rotate;

[0009] The disassembly and assembly device includes a position adjustment component, a sleeve, and a drive component. The position adjustment component is used to adjust the position of the sleeve on the frame, and the drive component is used to drive the sleeve to rotate.

[0010] An adaptive clamping device includes a snap-fit ​​block and an adaptive compensation component. The adaptive compensation component is disposed on the sleeve. The snap-fit ​​block is used to snap the nut in place. The adaptive compensation component is used to compensate for the positional deviation of the nut when it is inserted into the sleeve, so as to avoid stripping caused by misalignment.

[0011] A fixing device includes an adsorption component, a vibration triggering component, and an anti-detachment component. The adsorption component is used to magnetically fix the nut when it is inserted into the sleeve. The vibration triggering component is used to absorb the high-frequency vibration between the locking block and the nut when the sleeve rotates and convert it into an electrical signal. The anti-detachment component is used to increase the clamping force on the nut after receiving the electrical signal.

[0012] Preferably, the rotating device includes a rotary motor and a reducer, the rotary motor being connected to the substrate via the reducer, and the rotary motor being used to drive the substrate to rotate.

[0013] Preferably, the frame has an adjustment slot, and the position adjustment assembly includes an adjustment motor, an adjustment screw, a nut block, and an adjustment plate. The adjustment screw is mounted on the frame, and the adjustment motor drives the adjustment screw to rotate. The nut block is connected to the adjustment screw, and when the adjustment screw rotates, the nut block moves along the axial direction of the adjustment screw. The nut block is connected to the adjustment plate, and the adjustment plate is connected to the adjustment slot. The drive assembly is mounted on the adjustment plate.

[0014] Preferably, the drive assembly includes a tightening gun, which is disposed on the adjusting plate, and the sleeve is connected to the output end of the tightening gun.

[0015] Preferably, the sleeve has an adjustment cavity, and the adaptive compensation component includes a mounting ring, an adjustment push rod, a fitting block, and a snap-fit ​​spring. The mounting ring is disposed in the adjustment cavity, and six adjustment push rods are arranged around the mounting ring. Each adjustment push rod is connected to a snap-fit ​​block, and the fitting block is hinged to the snap-fit ​​block. Both ends of the snap-fit ​​spring are respectively connected to the snap-fit ​​block and the fitting block.

[0016] Preferably, the adsorption assembly includes a trigger block, a self-resetting switch, and an electromagnet. When the nut is inserted into the sleeve, it will drive the bonding block to rotate. When the axes of the bonding block and the sleeve are parallel to each other, the trigger block will press against the self-resetting switch to activate the electromagnet. The electromagnet is disposed on the bonding block and is used to magnetically fix the nut when it is inserted into the sleeve.

[0017] Preferably, the vibration triggering assembly includes a trigger ring, a mounting box, a piezoelectric block, a return spring, a piezoelectric ceramic, and a voltage sensor. The trigger ring is coaxially connected to the trigger block. The mounting box is disposed on the snap-fit ​​block. The piezoelectric ceramic is disposed inside the mounting box. The self-reset switch is disposed on the mounting box. The piezoelectric block is disposed on one side of the mounting box. When the trigger block abuts against the self-reset switch, the trigger ring and the piezoelectric block will fit together. The return spring is used to drive the piezoelectric block to reset. When the trigger block is vibrated, it will drive the piezoelectric block to vibrate through the trigger ring. When the piezoelectric block vibrates, it will continuously strike the piezoelectric ceramic. The piezoelectric ceramic is electrically connected to the voltage sensor.

[0018] Preferably, the anti-detachment component includes a cylinder and a pneumatic push rod. The cylinder is connected to the bonding block, and the cylinder is connected to the pneumatic push rod. When the voltage value measured by the voltage sensor exceeds the set value, the cylinder will open and drive the pneumatic push rod to reinforce the bonding block.

[0019] On the other hand, an end plate disassembly and assembly machine is provided, including the aforementioned end plate nut disassembly and assembly mechanism.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention achieves automatic centering during the nut insertion stage through the cooperation of the snap-fit ​​block and the compensation component, and forms a dynamic clamping enhancement mechanism with the vibration-triggered anti-loosening component, which effectively avoids stripping and falling off; at the same time, the adsorption component and the snap-fit ​​block provide the initial clamping force, and the anti-loosening component automatically strengthens the clamping when rotational vibration is detected, which significantly improves the reliability under complex working conditions, reduces the difficulty of manual positioning, and also improves the efficiency of disassembly and assembly and the safety of operation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 1 ;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the connection structure of the position adjustment component of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the frame and the adjustment plate of the present invention;

[0025] Figure 5 This is a schematic diagram showing the positional structure of the sleeve, bonding block, and electromagnet of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the sleeve of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure of the mounting ring, adjusting push rod, and fitting block of the present invention. Figure 1 ;

[0028] Figure 8 This is a schematic diagram of the connection structure of the mounting ring, adjusting push rod, and fitting block of the present invention. Figure 2 ;

[0029] Figure 9 This is a schematic diagram of the position structure of the snap-fit ​​block and mounting ring of the present invention;

[0030] Figure 10 This is a schematic diagram showing the positional structure of the bonding block, trigger block, and trigger ring of the present invention;

[0031] Figure 11 This is a schematic diagram showing the position and structure of the snap-fit ​​block, mounting box, and pneumatic push rod of the present invention;

[0032] Figure 12 This is a schematic diagram of the internal structure of the mounting box of the present invention (the mounting box is shown in perspective).

[0033] Figure 13 This is a schematic diagram of the connection structure between the self-resetting switch and the mounting box of the present invention;

[0034] Figure 14 This is a schematic diagram of the connection structure between the piezoelectric block and the reset spring of the present invention;

[0035] Figure 15 This is a schematic diagram of the three-dimensional structure of the piezoelectric block of the present invention.

[0036] In the diagram: 1. Mounting bracket, 2. Frame, 3. Sleeve, 4. Snap-fit ​​block, 5. Rotary motor, 6. Reducer, 7. Adjustment slot, 8. Adjustment motor, 9. Adjustment screw, 10. Nut block, 11. Adjustment plate, 12. Tightening gun, 13. Mounting ring, 14. Adjustment push rod, 15. Adhesive block, 16. Snap-fit ​​spring, 17. Trigger block, 18. Self-reset switch, 19. Electromagnet, 20. Trigger ring, 21. Mounting box, 22. Piezoelectric block, 23. Reset spring, 24. Piezoelectric ceramic, 25. Voltage sensor, 26. Cylinder, 27. Pneumatic push rod, 101. Base plate, 301. Adjustment cavity. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-15 The present invention provides a technical solution:

[0039] An end plate nut disassembly and assembly mechanism, as shown in the attached instruction manual. Figure 1 As shown, it includes:

[0040] Mounting frame 1, mounting frame 1 is rotatably connected to base plate 101, base plate 101 is provided with several racks 2, the size of base plate 101 can be adaptively adjusted according to the size of pipe pile, in this embodiment, four racks 2 are provided;

[0041] A rotating device is used to drive the substrate 101 to rotate;

[0042] The disassembly and assembly device includes a position adjustment component, a sleeve 3, and a drive component. The position adjustment component is used to adjust the position of the sleeve 3 on the frame 2, and the drive component is used to drive the sleeve 3 to rotate.

[0043] An adaptive clamping device includes a snap-fit ​​block 4 and an adaptive compensation component. The adaptive compensation component is disposed on the sleeve 3. The snap-fit ​​block 4 is used to snap the nut in place. The adaptive compensation component is used to compensate for the positional deviation of the nut when it is inserted into the sleeve 3, so as to avoid stripping caused by misalignment.

[0044] The fixing device includes an adsorption component, a vibration triggering component, and an anti-detachment component. The adsorption component is used to magnetically fix the nut when it is inserted into the sleeve 3. The vibration triggering component is used to absorb the high-frequency vibration between the locking block 4 and the nut when the sleeve 3 rotates and convert it into an electrical signal. The anti-detachment component is used to increase the clamping force on the nut after receiving the electrical signal.

[0045] The rotating device includes a rotary motor 5 and a reducer 6. The rotary motor 5 is fixedly connected to an external bracket (the external bracket is not shown in the attached drawings of the specification). The rotary motor 5 is a servo motor, which can precisely control its rotation angle to precisely adjust the angle of the substrate 101. The rotary motor 5 is connected to the substrate 101 through the reducer 6. The rotary motor 5 is used to drive the substrate 101 to rotate.

[0046] The frame 2 has an adjustment groove 7, which is used to limit the movement direction of the adjustment plate 11. The position adjustment assembly includes an adjustment motor 8, an adjustment screw 9, a nut block 10, and an adjustment plate 11. The adjustment screw 9 is rotatably connected to the frame 2. The adjustment motor 8 is also a servo motor, which is used to drive the adjustment screw 9 to rotate. The nut block 10 is connected to the adjustment screw 9. The nut block 10 and the adjustment screw 9 cooperate with each other. Therefore, when the adjustment screw 9 rotates, the nut block 10 will move along the axial direction of the adjustment screw 9. The adjustment plate 11 is fixedly connected to one side of the nut block 10. The adjustment plate 11 is used to install the tightening gun 12. The adjustment plate 11 is slidably connected to the adjustment groove 7.

[0047] The drive assembly includes a tightening gun 12, which is existing technology and can be purchased according to actual needs. It will not be described in detail here. One side of the tightening gun 12 is fixedly connected to the adjusting plate 11, and the sleeve 3 is fixedly connected to the output end of the tightening gun 12. Therefore, the tightening gun 12 can drive the sleeve 3 to rotate.

[0048] The sleeve 3 has an adjustment cavity 301 for mounting the mounting ring 13. The adjustment cavity 301 is annular, and the inner diameter of the side wall of the adjustment cavity 301 is larger than the inner diameter of the mounting ring 13. The adaptive compensation component includes the mounting ring 13, the adjustment push rod 14, the contact block 15, and the snap-fit ​​spring 16. The mounting ring 13 is used to compensate for the coaxiality deviation between the nut and the sleeve 3. If the nut and the sleeve 3 are not on the same axis, the mounting ring 13 will move along the adjustment cavity 301 under the action of the nut's pushing force when the nut is inserted, thereby compensating for the coaxiality deviation. The mounting ring 13 is slidably connected to the adjustment cavity 301. Six adjustment push rods 14 are arranged around the mounting ring 13. The adjustment push rods 14 are electro-hydraulic push rods. The telescopic end of the adjustment push rod 14 is fixedly connected to the snap-fit ​​block 4. The contact block 15 is hinged to the snap-fit ​​block 4. The two ends of the snap-fit ​​spring 16 are fixedly connected to the snap-fit ​​block 4 and the contact block 15, respectively. The snap-fit ​​spring 16 is used to drive the contact block 15 to contact the nut.

[0049] The adsorption assembly includes a trigger block 17, a self-resetting switch 18, and an electromagnet 19. When the nut is inserted into the sleeve 3, it will drive the adsorption block 15 to rotate. When the axes of the adsorption block 15 and the sleeve 3 are parallel to each other (as shown in the instruction manual), the adsorption assembly will rotate. Figure 8 As shown, this means that the mating block 15 and the nut are mated together. The trigger block 17 will press against the self-reset switch 18 to activate the electromagnet 19. The electromagnet 19 is fixedly connected to the mating block 15. The electromagnet 19 is used to magnetically fix the nut when it is inserted into the sleeve 3, thereby enhancing the stability of the nut when it is installed or removed.

[0050] The vibration triggering assembly includes a trigger ring 20, a mounting box 21, a piezoelectric block 22, a return spring 23, a piezoelectric ceramic 24, and a voltage sensor 25. The trigger ring 20 is coaxially connected to the trigger block 17. The diameter of the trigger ring 20 is larger than that of the trigger block 17, so the trigger ring 20 will not affect the use of the trigger block 17 during operation, and there will be no problem of the trigger ring 20 accidentally triggering the self-reset switch 18. The self-reset switch 18 is located in the mounting box 21, which is fixedly connected inside the snap-fit ​​block 4. The mounting box 21 is used to install the piezoelectric ceramic 24 and the voltage sensor 25. The piezoelectric ceramic 24 is installed inside the mounting box 21. The piezoelectric ceramic 24 is used to generate an electrical signal when it receives pressure from the piezoelectric block 22. A piezoelectric block 22 is provided on the side and is slidably connected to the mounting box 21. When the trigger block 17 presses against the self-reset switch 18, the trigger ring 20 will be in contact with the piezoelectric block 22. The reset spring 23 is used to drive the piezoelectric block 22 to reset. When the trigger block 17 is vibrated, it will drive the piezoelectric block 22 to vibrate through the trigger ring 20. When the piezoelectric block 22 vibrates, it will continuously strike the piezoelectric ceramic 24. When the nut is not loose, due to the limitation of the adjusting push rod 14, the vibration amplitude between the nut and the contact block 15 is relatively small. Therefore, the voltage generated by the piezoelectric ceramic 24 is also low. The piezoelectric ceramic 24 is electrically connected to a voltage sensor 25, which is used to detect the voltage of the piezoelectric ceramic 24.

[0051] The anti-detachment component includes a cylinder 26 and a pneumatic push rod 27. When the voltage value measured by the voltage sensor 25 exceeds the set value, the cylinder 26 is used to store hydraulic oil. The cylinder 26 will open and drive the pneumatic push rod 27 to reinforce the bonding block 15. One end of the pneumatic push rod 27 will abut against the bonding block 15 when it extends.

[0052] Working Principle: During use, the rotary motor 5 drives the base plate 101 to rotate, thereby aligning the sleeve 3 and the nut. Then, for nuts to be installed or removed, the tightening gun 12 drives the sleeve 3 to move along the axial direction of the pipe pile. During insertion, the nut first contacts the fitting block 15. As the tightening gun 12 drives the sleeve 3, the nut gradually drives the fitting block 15 to rotate. When the axes of the fitting block 15 and the sleeve 3 are parallel (meaning the fitting block 15 and the nut are in contact), the trigger block 17 presses against the self-reset switch 18, thereby activating the electromagnet 19. The electromagnet 19 attracts the nut. After attraction, the pneumatic tightening gun 12 drives the nut to rotate, thus disassembling the nut. During disassembly, friction inevitably occurs between the nut and the bolts on the pipe pile end plate. When vibration occurs, the nut will drive the trigger block 17 to vibrate. When the trigger block 17 is vibrated, it will drive the piezoelectric block 22 to vibrate through the trigger ring 20. When the piezoelectric block 22 vibrates, it will continuously strike the piezoelectric ceramic 24. When the nut is not loose, due to the limitation of the adjusting push rod 14, the vibration amplitude between the nut and the bonding block 15 is relatively small, so the voltage generated by the piezoelectric ceramic 24 is also low. When the amplitude is too large, the voltage sensor 25 will detect that the voltage generated by the piezoelectric ceramic 24 is too large, and control the cylinder 26 through the electrical signal to drive the pneumatic push rod 27 to push the bonding block 15, thereby enhancing the fixing effect of the nut. When the nut is removed, the electromagnet 19 is turned off, and the pneumatic push rod 27 is depressurized. Under the action of the snap-fit ​​spring 16, the bonding block 15 is reset.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An end plate nut dismounting mechanism characterized by comprising: The utility model provides a kind of self-adapting nut installation and removal device, including: mounting rack, the mounting rack is rotatably connected with base plate, the base plate is provided with several racks;Rotary device, the rotary device is used to drive the base plate to rotate;Disassembling device, the disassembling device includes position adjusting component, sleeve and drive component, the position adjusting component is used to adjust the position of the sleeve on the rack, the drive component is used to drive the sleeve to rotate;Self-adapting clamping device, the self-adapting clamping device includes clamping block and self-adapting compensation component, the self-adapting compensation component is arranged in the sleeve, the clamping block is used to clamp nut, the self-adapting compensation component is used to compensate the position deviation of nut when nut is inserted into sleeve, avoid the slip caused by deflection; Fixing device, the fixing device includes adsorption component, vibration trigger component and anti-drop component, the adsorption component is used to magnetically attract and fix nut when nut is inserted into sleeve, the vibration trigger component is used to absorb high-frequency vibration between clamping block and nut when the sleeve rotates and convert it into electrical signal, the anti-drop component is used to increase the clamping force of nut after receiving electrical signal; The sleeve is provided with adjusting cavity, the self-adapting compensation component includes mounting ring, adjusting push rod, fitting block and clamping spring, the mounting ring is arranged in the adjusting cavity, six adjusting push rods are arranged around the mounting ring, the adjusting push rod is connected with clamping block, the fitting block is hinged to the clamping block, and the clamping spring is connected to the clamping block and the fitting block at both ends. The rotary device includes rotary motor and speed reducer, the rotary motor is connected to the base plate through the speed reducer, and the rotary motor is used to drive the base plate to rotate. The rack is provided with adjusting groove, the position adjusting component includes adjusting motor, adjusting screw, nut block and adjusting plate, the adjusting screw is arranged in the rack, the adjusting motor is used to drive the adjusting screw to rotate, the nut block is connected to the adjusting screw, when the adjusting screw rotates, the nut block moves along the axial direction of the adjusting screw, the nut block is connected with the adjusting plate, the adjusting plate is connected to the adjusting groove, and the drive component is arranged in the adjusting plate. The drive component includes tightening gun, the tightening gun is arranged in the adjusting plate, and the sleeve is connected to the output end of the tightening gun. The adsorption component includes trigger block, self-resetting switch and electromagnet, when nut is inserted into the sleeve, the fitting block is driven to rotate, when the axis of the fitting block and the sleeve is parallel to each other, the trigger block abuts against the self-resetting switch to turn on the electromagnet, the electromagnet is arranged in the fitting block, and the electromagnet is used to magnetically attract and fix nut when nut is inserted into sleeve.

2. The end plate nut removal mechanism of claim 1, wherein: ​ 3. The end plate nut removal mechanism of claim 1, wherein: ​ 4. The end plate nut removal mechanism of claim 3, wherein: ​ 5. The end plate nut removal mechanism of claim 1, wherein: ​ 6. A mechanism for dismounting an end plate nut according to claim 5, characterized in that: The vibration trigger assembly comprises a trigger ring, a mounting box, a piezoelectric block, a reset spring, a piezoelectric ceramic and a voltage sensor, the trigger ring is coaxially connected to the trigger block, the mounting box is arranged on the clamping block, the piezoelectric ceramic is arranged in the mounting box, the self-reset switch is arranged in the mounting box, one side of the mounting box is provided with the piezoelectric block, when the trigger block abuts against the self-reset switch, the trigger ring and the piezoelectric block are mutually attached, the reset spring is used to drive the piezoelectric block to reset, when the trigger block is vibrated, the trigger ring drives the piezoelectric block to vibrate, when the piezoelectric block vibrates, the piezoelectric ceramic is continuously knocked, and the piezoelectric ceramic is electrically connected with the voltage sensor.

7. A mechanism for removing and replacing an end plate nut according to claim 6, wherein: The anti-disengagement assembly comprises a gas cylinder and a pneumatic push rod, the gas cylinder is connected to the attachment block, and the gas cylinder is connected with the pneumatic push rod, when the voltage value measured by the voltage sensor exceeds the set value, the gas cylinder is opened and drives the pneumatic push rod to reinforce the attachment block.

8. An end plate removal machine characterized by: The end plate nut dismounting mechanism comprises the end plate nut dismounting mechanism according to any one of claims 1-7.

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