Automatic bolt dismounting device

Abstract

The utility model provides an automatic bolt dismounting device. Comprising a mounting seat assembly, a rotation driving source mounted on the mounting seat assembly, a rotation driving shaft in transmission connection with the rotation driving source, a sliding rotation shaft mounted on the rotation driving shaft in a vertically movable manner, a dismounting sleeve mounted at the lower end of the sliding rotation shaft, and a sliding detection plate synchronously moving up and down with the sliding rotation shaft, the distance measuring sensor is mounted on the mounting seat assembly, the sliding detection plate can be mounted on the mounting seat assembly in an up-down moving manner, and the distance measuring sensor is aligned with the sliding detection plate. When the to-be-dismounted bolt is dismounted, the dismounting sleeve sleeves the head of the to-be-dismounted bolt, the rotary driving source drives the rotary driving shaft to rotate, the to-be-dismounted bolt is screwed out, and automatic dismounting is completed. In the dismounting process, the sliding rotating shaft can drive the sliding detection plate to move up and down, the distance between the sliding detection plate and the distance measuring sensor changes, the distance measuring sensor obtains distance data, and whether the bolt to be dismounted is effectively dismounted or not is judged according to the distance data.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated pile production and manufacturing, in particular to an automatic bolt disassembly device. Background Art

[0002] Removing the clamping spring bolts of the tube mold is an essential step in the production process of precast piles. At present, the method of removing the clamping spring bolts is: the operator holds a blasting gun with a hexagonal socket on the head. However, this manual disassembly method has the following defects: 1. The speed of removing the clamping spring bolts needs to meet the production capacity requirements of the workshop. The workshop is usually equipped with several precast pile production lines, which requires the operator to remove the clamping spring bolts on several precast pile production lines. This results in a very high labor intensity for the operator, with basically no time to rest, and even requires the deployment of multiple production line workers; 2. The blasting gun will generate large vibrations during operation, and the vibrations are directly transmitted to the operator's arms, causing the operator's arms to become numb after working in this link for a day, which is very hard. At the same time, it is not conducive to improving the removal efficiency of the clamping spring bolts, which is not conducive to improving the production capacity of precast piles.

[0003] In response to the above problems, the Chinese utility model patent with application number 202323022800.7 discloses a screw removal device with floating adjustment capability, which is configured by sleeves of a disassembly sleeve on the head of the screw to be disassembled, and a rotary drive source drives the disassembly sleeve to rotate, thereby unscrewing the screw to be disassembled, and realizing automatic screw removal. At the same time, it is also configured with a floating sleeve to absorb the up and down shaking of the screw to be disassembled during the disassembly process. However, the screw removal device has the following defects during actual use: it is impossible to judge whether the disassembly sleeve is accurately sleeved into the screw to be disassembled; in addition, even if the disassembly sleeve is accurately sleeved into the screw to be disassembled, when the screw to be disassembled is subsequently driven to rotate, it is not possible to judge whether the screw to be disassembled has been successfully disassembled. Therefore, the screw removal device in the prior art cannot confirm whether the screw to be disassembled has been effectively disassembled. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an automatic bolt removal device that can determine whether the bolt has been effectively removed.

[0005] To achieve the above-mentioned purpose, the utility model provides an automatic bolt disassembly device, comprising a mounting seat assembly, a rotating drive source mounted on the mounting seat assembly, a rotating drive shaft transmission-connected to the rotating drive source, a sliding rotating shaft movably mounted on the rotating drive shaft, and a disassembly sleeve mounted at the lower end of the sliding rotating shaft, the disassembly sleeve being used to be sleeved on the outer periphery of the bolt to be disassembled, the automatic bolt disassembly device also comprising a sliding detection plate that moves up and down synchronously with the sliding rotating shaft, and a ranging sensor mounted on the mounting seat assembly, the sliding detection plate being movably mounted on the mounting seat assembly, and the ranging sensor being aligned with the sliding detection plate.

[0006] The preferred solution of the above technical solution is: the mounting seat assembly includes an adapter fixing frame for connecting to the robotic arm, a floating adapter ring rotatably mounted on the bottom of the adapter fixing frame around a first horizontal axis, a floating connecting frame rotatably mounted in the floating adapter ring around a second horizontal axis, a floating mounting plate distributed on the lower side of the floating connecting frame, and several guide shafts fixedly connected between the floating connecting frame and the floating mounting plate, the first horizontal axis and the second horizontal axis are perpendicular to each other, the rotation drive source is rotatably mounted on the floating connecting frame around a vertical axis, the sliding rotation shaft is rotatably and movably supported in the floating mounting plate, and the ranging sensor is fixed to the floating adapter ring.

[0007] A preferred embodiment of the above technical solution is as follows: the automatic bolt disassembly device further comprises a bearing seat fixed to the bottom of the sliding detection plate, an angular contact ball bearing is disposed in the bearing seat, the rotary drive shaft is rotatably inserted into the angular contact ball bearing, a gap is provided between the inner ring of the angular contact ball bearing and the rotary drive shaft, and the bottom of the inner ring of the angular contact ball bearing abuts against the top of the sliding rotary shaft;

[0008] The guide shafts include at least one first guide shaft and at least one second guide shaft. The first guide shaft is movably disposed up and down in the sliding detection plate through a linear bearing. The second guide shaft is movably disposed up and down in the sliding detection plate. A first compression spring and a shock-absorbing sleeve are sleeved on the second guide shaft. The upper and lower ends of the first compression spring are respectively in contact with the floating connecting frame and the sliding detection plate. The upper and lower ends of the shock-absorbing sleeve are respectively in contact with the sliding detection plate and the floating mounting plate.

[0009] The preferred solution of the above technical solution is: the sliding detection plate is a rectangular plate, there are two first guide shafts, and they are symmetrically distributed along a diagonal line of the sliding detection plate, there are two second guide shafts, and they are symmetrically distributed along another diagonal line of the sliding detection plate, and the remaining guide shafts except the first guide shaft and the second guide shaft are symmetrically distributed on both sides of the width direction of the sliding detection plate.

[0010] A preferred solution of the above technical solution is: a transfer flange is fixed on the top of the transfer fixing frame, and the transfer flange is used to be fixedly connected to the output end flange of the robotic arm.

[0011] The preferred solution of the above technical solution is: the adapter fixing frame is a closed structure on all sides, and the adapter fixing frame includes a frame top plate and a frame bottom plate arranged opposite each other up and down, and several frame side plates fixed between the frame top plate and the frame bottom plate, several of the frame side plates are fixed end to end, and each of the frame side plates is provided with several through slots, and the floating adapter ring is rotatably mounted on the bottom of the frame bottom plate.

[0012] The preferred solution of the above technical solution is: a connecting flat key is provided on the outer wall of the rotating drive shaft, the sliding rotating shaft sleeve is on the outer periphery of the lower part of the rotating drive shaft, and a floating slide groove extending straight up and down is provided on the inner wall of the sliding rotating shaft, the connecting flat key is located in the floating slide groove, and the two are slidably matched.

[0013] The preferred solution of the above technical solution is: the automatic bolt disassembly device also includes a limit pin fixed in the lower part of the rotating drive shaft, and a limit guide groove extending straight up and down is opened in the sliding rotating shaft, and the end of the limit pin is accommodated in the limit guide groove and can abut against the upper and lower ends of the limit guide groove.

[0014] The preferred solution of the above technical solution is: the automatic bolt disassembly device also includes a universal joint, a spring spacer assembled at the lower end of the sliding rotating shaft, a connecting ring assembled at the upper end of the disassembly sleeve, and a second compression spring. The upper end of the universal joint is fixed to the lower end of the sliding rotating shaft, and the lower end of the universal joint is a ball head. A waist-shaped hole extending up and down is provided in the ball head. The ball head can be rotatably inserted into the upper end of the disassembly sleeve, and the two are connected by a sleeve mounting pin passed through the waist-shaped hole. The spring spacer, the second compression spring and the connecting ring are abutted in sequence and are all sleeved on the outer periphery of the universal joint.

[0015] A preferred embodiment of the above technical solution is that the rotation driving source is a pneumatic blaster.

[0016] As described above, the automatic bolt removal device of the present invention has the following beneficial effects:

[0017] When removing a bolt to be removed, the present invention places a disassembly sleeve on the head of the bolt to be removed. A rotary drive source then drives the rotary drive shaft to rotate, causing the sliding rotary shaft, the disassembly sleeve, and the bolt to be removed to rotate along with the rotary drive shaft, thereby screwing out the bolt to be removed and completing automatic disassembly. During the disassembly process, the sliding rotary shaft can move up and down, driving the sliding detection plate to move up and down. This causes the distance between the sliding detection plate and the distance sensor to change. The distance sensor acquires this distance data and uses this distance data to determine whether the bolt to be removed has been effectively removed.

[0018] Specifically, when the disassembly sleeve contacts a hard object, the disassembly sleeve will move up, driving the sliding rotating shaft and the sliding detection plate to move up together, and the output signal of the distance measuring sensor will change once; after that, the rotation driving source will be activated. If the hard object contacted by the disassembly sleeve is the bolt to be disassembled and it is successfully inserted, then during the operation of the rotation driving source, the bolt to be disassembled, the disassembly sleeve, the sliding rotating shaft and the sliding detection plate will continue to move up, and the output signal of the distance measuring sensor will continue to change, thereby judging that the disassembly sleeve is accurately inserted into the mold spring bolt to be disassembled, and feedback is given that the bolt is successfully inserted; if the hard object contacted by the disassembly sleeve is the bolt to be disassembled and it is not successfully inserted, or the hard object contacted by the disassembly sleeve is not the bolt to be disassembled, then during the operation of the rotation driving source, the bolt to be disassembled, the disassembly sleeve, the sliding rotating shaft and the sliding detection plate will not move up, and the output signal of the distance measuring sensor will not change, thereby judging that the disassembly sleeve is not inserted into the mold spring bolt to be disassembled, and feedback is given that the bolt is invalidly disassembled. When the feedback bolt is inserted successfully and the bolt to be removed is screwed out, the removal sleeve, sliding rotating shaft, and sliding detection plate stop moving upward, and the output signal of the distance sensor stops changing, indicating that the feedback bolt has been successfully removed. After that, the removal operation of the next bolt to be removed can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 and Figure 2 This is a schematic diagram of the structure of the automatic bolt removal device of this application from different perspectives.

[0020] Figure 3 This is a top view of the automatic bolt removal device of this application.

[0021] Figure 4 for Figure 3 AA section view.

[0022] Figure 5 for Figure 3 BB cross-sectional view.

[0023] Figure 6 This is a schematic structural diagram of the swing assembly in this application.

[0024] Figure 7 for Figure 6 CC section view.

[0025] Figure 8 This is a schematic diagram of the installation of the ranging sensor in this application.

[0026] Component number description

[0027] 10 Rotation drive source

[0028] 101 Trachea Connector

[0029] 20 Mounting Base Assembly

[0030] 21 Adapter fixed frame

[0031] 211 frame top plate

[0032] 212 frame base

[0033] 213 frame side panels

[0034] 214 through slot

[0035] 22 Floating Adapter Ring

[0036] 23 Floating connection frame

[0037] 24 Floating mounting plate

[0038] 25 guide shaft

[0039] 251 First guide shaft

[0040] 252 Second guide shaft

[0041] 26 First compression spring

[0042] 27 Shock-absorbing sleeve

[0043] 28 Adapter flange

[0044] 29 Adapter Ear

[0045] 210 First support bolt

[0046] 211 Second support bolt

[0047] 212 Slide Pad

[0048] 213 Arc groove

[0049] 214 Third support bolt

[0050] 30 Rotating drive shaft

[0051] 40 Sliding Rotation Axis

[0052] 41 floating chute

[0053] 50 Disassembly sleeve

[0054] 60 Sliding detection plate

[0055] 70 Distance Sensor

[0056] 80 bearing seat

[0057] 81 Angular contact ball bearings

[0058] 90 connecting key

[0059] 110 limit pin

[0060] 120 Universal Joint

[0061] 130 Spring Spacer

[0062] 140 connecting ring

[0063] 150 Second compression spring

[0064] 160 sleeve mounting pin

[0065] 170 Valve mounting plate

[0066] 180 Pilot Operated Normally Closed Fluid Control Valve

[0067] 190 sensor sheet metal bracket

[0068] 200 Mechanical Switch

[0069] 210 Swing support top plate

[0070] 220 Swing assembly

[0071] 221 Spring Sleeve

[0072] 222 Pressure regulating nut

[0073] 223 pressure regulating rod

[0074] 224 Third compression spring

[0075] 225 Compression spring spacer

[0076] 230 foot

[0077] 240 Lap Sensor Bracket

[0078] 250 Position detection sensor bracket

[0079] 260 First Inductive Proximity Switch

[0080] 270 Second inductive proximity switch

[0081] 280 Third Inductive Proximity Switch DETAILED DESCRIPTION

[0082] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0083] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0084] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0085] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0086] The utility model provides an automatic bolt removal device for automated bolt removal. The following description uses the automatic bolt removal device for removing mold spring bolts on a precast pile production line as an example. The mold spring bolts are the bolts to be removed and are in a vertical position. On the precast pile production line, the mold spring bolts lock the tube mold to achieve mold closing; when removing the mold, the mold spring bolts are removed first.

[0087] like Figure 1 and Figure 2As shown, the automatic bolt disassembly device involved in the present invention includes a mounting seat assembly 20, a rotating drive source 10 installed on the mounting seat assembly 20, a rotating drive shaft 30 transmission-connected to the rotating drive source 10, a sliding rotating shaft 40 movably installed on the rotating drive shaft 30, a disassembly sleeve 50 installed at the lower end of the sliding rotating shaft 40, a sliding detection plate 60 that moves up and down synchronously with the sliding rotating shaft 40, and a distance sensor 70 installed on the mounting seat assembly 20. The rotating drive shaft 30, the sliding rotating shaft 40 and the disassembly sleeve 50 all extend up and down. The lower end of the disassembly sleeve 50 is used to be sleeved on the outer periphery of the head of the mold spring bolt. The sliding detection plate 60 is movably installed on the mounting seat assembly 20. The distance sensor 70 is aligned with the sliding detection plate 60 and is used to measure the distance between the sliding detection plate 60 and the distance sensor 70, that is, to measure the upward movement distance of the sliding detection plate 60.

[0088] When removing a mold spring bolt, the automatic bolt removal device inserts a removal sleeve 50 onto the upper head of the mold spring bolt. The rotary drive source 10 then rotates the rotary drive shaft 30, causing the sliding rotary shaft 40, the removal sleeve 50, and the mold spring bolt to rotate along with the rotary drive shaft 30, thereby unscrewing the mold spring bolt and completing automatic removal. During the removal process, the sliding rotary shaft 40 moves up and down, driving the sliding detection plate 60 up and down. This causes the distance between the sliding detection plate 60 and the distance sensor 70 to change. The distance sensor 70 then captures this distance data and uses it to determine whether the mold spring bolt has been effectively removed. Specifically, when the disassembly sleeve 50 contacts a hard object, the disassembly sleeve 50 moves up, driving the sliding rotary shaft 40 and the sliding detection plate 60 to move up together, and the output signal of the distance sensor 70 changes once; thereafter, the rotation drive source 10 operates. If the hard object contacted by the disassembly sleeve 50 is a mold closing spring bolt and is inserted successfully, during the operation of the rotation drive source 10, the mold closing spring bolt, the disassembly sleeve 50, the sliding rotary shaft 40 and the sliding detection plate 60 will continue to move up, and the output signal of the distance sensor 70 continues to change. This determines that the assembly and disassembly sleeve is accurately inserted into the mold spring bolt to be removed, and the feedback bolt is successfully inserted. If the hard object contacted by the disassembly sleeve 50 is the mold spring bolt and is not successfully inserted, or the hard object contacted by the disassembly sleeve 50 is not the mold spring bolt, then during the operation of the rotary drive source 10, the mold spring bolt, the disassembly sleeve 50, the sliding rotary shaft 40 and the sliding detection plate 60 will not move upward, and the output signal of the distance sensor 70 will not change. It is thus determined that the assembly and disassembly sleeve has not been inserted into the mold spring bolt to be removed, and the feedback bolt is not removed in effect. When the feedback bolt is successfully inserted, after the mold spring bolt is screwed out, the disassembly sleeve 50, the sliding rotary shaft 40 and the sliding detection plate 60 stop moving upward, the output signal of the distance sensor 70 stops changing, and the feedback bolt is successfully removed. After that, the next mold spring bolt can be removed.

[0089] Furthermore, the preferred structure of the mounting seat assembly 20 is as follows: Figures 1 to 5 As shown, the mounting base assembly 20 includes an adapter fixing frame 21 for connecting to the robot arm, a floating adapter ring 22 rotatably mounted on the bottom of the adapter fixing frame 21 around a first horizontal axis, a floating connecting frame 23 rotatably mounted in the floating adapter ring 22 around a second horizontal axis, a floating mounting plate 24 distributed below the floating connecting frame 23, and eight guide shafts 25 fixedly connected between the floating connecting frame 23 and the floating mounting plate 24. The first horizontal axis and the second horizontal axis are perpendicular to each other. The rotation drive source 10 is rotatably mounted on the floating connecting frame 23 around a vertical axis. The sliding rotation shaft 40 is rotatably and vertically supported in the floating mounting plate 24. The distance sensor 70 is fixed to the floating adapter ring 22. For ease of description, the extension direction of the first horizontal axis is defined as the left-right direction, and the extension direction of the second horizontal axis is defined as the front-back direction. During the process of disassembling the mold spring bolt, when the mold spring bolt swings in the front and back, left and right, and up and down directions, the front and back swing and left and right swing of the mold spring bolt are absorbed by the left and right swing of the floating adapter ring 22, the front and back swing of the floating connecting frame 23, and the self-rotation and swing of the rotary drive source 10. The up and down swing of the mold spring bolt is absorbed by the disassembly sleeve 50 and the up and down movement of the sliding rotary shaft 40, so that the present application has the floating adjustment capability in three directions, and better realizes the automatic disassembly of the mold spring bolt.

[0090] Preferably, if Figure 1 and Figure 2 As shown, the transfer fixing frame 21 is a closed structure on all sides and is a welded frame. The transfer fixing frame 21 includes a frame top plate 211 and a frame bottom plate 212 that are arranged vertically opposite each other, and several frame side plates 213 fixed between the frame top plate 211 and the frame bottom plate 212. Along the circumference of the transfer fixing frame 21, several frame side plates 213 are welded end to end, and each frame side plate 213 is provided with several through slots 214, and the floating transfer ring 22 is rotatably mounted on the bottom of the frame bottom plate 212. Both the frame top plate 211 and the frame bottom plate 212 are provided with mounting openings that pass through from top to bottom. The transfer fixing frame 21 with a closed structure on all sides makes the automatic bolt disassembly device bear balanced and stable forces as a whole. In addition, as Figures 1 to 3 As shown, a transfer flange 28 is fixed to the top of the transfer fixing frame 21, and the transfer flange 28 is used to be fixedly connected to the output end flange of the robot arm, thereby installing the transfer fixing frame 21 as a whole on the output end of the robot arm; adopting the top flange mounting structure, when the robot arm drives the automatic bolt removal device to move, the downward movement distance of the automatic bolt removal device of the present application can be deepened, so as to better perform the bolt removal operation.

[0091] Furthermore, in this embodiment, the rotary drive source 10 is a pneumatic blaster, the output shaft of the pneumatic blaster is coaxially arranged with the rotary drive shaft 30, the output shaft of the pneumatic blaster is inserted into the upper end of the rotary drive shaft 30, and the two are fixedly connected by a shoulder hinge pin. Based on the structure that the rotary drive source 10 is a pneumatic blaster, as shown in FIG. Figure 4 and Figure 5 As shown, the top of the pneumatic horn is provided with an air pipe joint 101; Figure 2 and Figure 4 As shown, a valve mounting plate 170 is fixed to the bottom of the frame base plate 212 in the adapter fixing frame 21. A pilot normally closed fluid control valve 180 is fixedly mounted on the valve mounting plate 170. The pilot normally closed fluid control valve 180 is distributed on the outer peripheral side of the adapter fixing frame 21. The air inlet and outlet of the pilot normally closed fluid control valve 180 are connected to the air pipe connector 101 of the pneumatic air cannon through a pipe joint, providing air source power for the pneumatic air cannon. The distance sensor 70 is a laser distance sensor 70; as shown in FIG. Figure 8 As shown, the laser ranging sensor 70 is fixed on an L-shaped sensor sheet metal bracket 190 , and the sensor sheet metal bracket 190 is fixed to the bottom of the floating adapter ring 22 in the mounting seat assembly 20 , thereby installing the laser ranging sensor 70 on the outer peripheral side of the floating adapter ring 22 .

[0092] Furthermore, if Figure 1 、 Figure 4 and Figure 5 As shown, the installation structure of the floating adapter ring 22 is as follows: a pair of symmetrically distributed adapter ears 29 are fixed to the bottom of the frame base plate 212 of the adapter fixing frame 21. Each adapter ear 29 is threadedly connected to a first support bolt 210 that extends straight and coaxially from left to right. The left and right sides of the floating adapter ring 22 are rotatably supported by the pair of first support bolts 210. The installation structure of the floating connecting frame 23 is as follows: the front and rear sides of the floating adapter ring 22 are threadedly connected to second support bolts 211 that extend straight and coaxially from front to back. The front and rear sides of the floating connecting frame 23 are rotatably supported by the pair of second support bolts 211. The rotation structure of the rotary drive source 10 is as follows: a sliding pad 212 is provided between the rotary drive source 10 and the floating connecting frame 23, and the sliding pad 212 and the floating connecting frame 23 are fixed to each other by screws; the four corners of the floating connecting frame 23 and the sliding pad 212 are provided with an arc groove 213 that passes through the upper and lower parts, and the circular shape of the arc groove 213 is on the central axis of the pneumatic cannon output shaft. Each arc groove 213 is passed through by a third support bolt 214 that extends up and down, and the upper end of the third support bolt 214 is fixed on the pneumatic cannon, thereby realizing the flexible floating installation of the pneumatic cannon.

[0093] Preferably, if Figure 1As shown, two mechanical switches 200 are fixed to the outer periphery of the floating adapter ring 22, and the two mechanical switches 200 are distributed on both sides of the adapter ear seat 29. When the pneumatic jackhammer swings to the extreme position, the mechanical switch 200 can contact the fixed welding frame of the pneumatic jackhammer, and the mechanical switch 200 is triggered, thereby issuing an alarm signal.

[0094] Further, if Figure 4 and Figure 5 As shown, the automatic bolt removal device further includes a swing support top plate 210, four sets of swing assemblies 220, and a foot base 230 abutting against the top of the sliding pad 212. The swing support top plate 210 is fixed to the top of the adapter fixing frame 21, preferably fixed between the frame top plate 211 and the adapter flange 28 of the adapter fixing frame 21. The four sets of swing assemblies 220 are welded to the swing support top plate 210, so that the swing support top plate 210 and the four sets of swing assemblies 220 are welded into a whole, which is fixedly mounted on the top of the adapter fixing frame 721 together with the swing support top plate 210. The support base 230, the sliding pad 212, and the floating connecting frame 23 are fixed by screws. The lower ends of the four sets of swing assemblies 220 act on the support base 230, applying spring force to the support base 230, so that the support base 230, the sliding pad 212, the floating connecting frame 23, and the floating adapter ring 22 can return to their initial state when no force is applied, and allow the sliding pad 212, the floating connecting frame 23, and the floating adapter ring 22 to flexibly swing within a certain angle when force is applied. The preferred structure of the swing assembly 220 is as follows: Figures 4 to 7 As shown, each set of swing components 220 includes a spring sleeve 221 whose upper end is welded and fixed in the swing support top plate 210, a pressure adjusting nut 222 screwed on the upper end of the spring sleeve 221, a pressure adjusting push rod 223 passing through the spring sleeve 221 and the pressure adjusting nut 222, two third compression springs 224 both sleeved on the pressure adjusting push rod 223, and a compression spring spacer 225 sleeved on the outer periphery of the pressure adjusting push rod 223 and located in the spring sleeve 221, the compression spring spacer 225 abuts against the lower end of the pressure adjusting nut 222, and the two Each third compression spring 224 is a rectangular spring and is arranged side by side. The upper and lower ends of the upper third compression spring 224 respectively abut against the compression spring spacer 225 and the stepped surface on the outer periphery of the pressure adjustment push rod 223. The upper and lower ends of the lower third compression spring 224 respectively abut against the stepped surface on the lower end of the spring sleeve 221 and the support base 230. The stepped surface on the outer periphery of the pressure adjustment push rod 223 is located above the stepped surface on the lower end of the spring sleeve 221, thereby exerting force on the support base 230, the sliding pad 212, the floating connecting frame 23, and the floating adapter ring 22. Furthermore, by turning the pressure adjustment nut 222, the height of the pressure adjustment nut 222 and the compression spring spacer 225 can be adjusted, thereby adjusting the spring force exerted by the third compression spring 224 on the support base 230.

[0095] Furthermore, if Figure 4 and Figure 5 As shown, the automatic bolt disassembly device also includes a bearing seat 80 fixed to the bottom of the sliding detection plate 60, and an angular contact ball bearing 81 is arranged in the bearing seat 80. The rotating drive shaft 30 is rotatably inserted into the angular contact ball bearing 81. There is a gap between the rotating drive shaft 30 and the inner ring of the angular contact ball bearing 81. The bottom of the inner ring of the angular contact ball bearing 81 is in contact with the top of the sliding rotating shaft 40, or in other words, the inner ring of the angular contact ball bearing 81 in the bearing seat 80 is pressed against the top of the sliding rotating shaft 40. The eight guide shafts 25 include at least one first guide shaft 251 and at least one second guide shaft 252. The first guide shaft 251 is vertically movable through the sliding detection plate 60 via a linear bearing. The second guide shaft 252 is vertically movable through the sliding detection plate 60. A first compression spring 26 and a shock-absorbing sleeve 27 are sleeved around the second guide shaft 252. The upper and lower ends of the first compression spring 26 respectively abut the floating connecting frame 23 and the sliding detection plate 60. The upper and lower ends of the shock-absorbing sleeve 27 respectively abut the sliding detection plate 60 and the floating mounting plate 24. As a result, when the sliding rotating shaft 40 moves upward, the bearing seat 80 is driven upward, which in turn drives the sliding detection plate 60 upward. The angular contact ball bearing 81 moves upward relative to the rotating drive shaft 30, thereby achieving vertically movable mounting of the sliding detection plate 60 on the mounting seat assembly 20.

[0096] Preferably, if Figure 1 and Figure 2 As shown, the sliding detection plate 60 is a rectangular plate, there are two first guide shafts 251, and they are symmetrically distributed along a diagonal line of the sliding detection plate 60, there are two second guide shafts 252, and they are symmetrically distributed along another diagonal line of the sliding detection plate 60, and the remaining guide shafts 25 except the first guide shaft 251 and the second guide shaft 252 are symmetrically distributed on both sides of the width direction of the sliding detection plate 60 to improve the structural stability.

[0097] Furthermore, if Figure 4 As shown, a connecting flat key 90 is provided on the outer wall of the rotary drive shaft 30, and the sliding rotary shaft 40 is sleeved on the outer periphery of the lower section of the rotary drive shaft 30. A floating slide 41 extending straight up and down is provided on the inner wall of the sliding rotary shaft 40. The connecting flat key 90 is located in the floating slide 41, and the two slide together. In this way, the rotary drive shaft 30 can drive the sliding rotary shaft 40 to rotate, and the sliding rotary shaft 40 can be allowed to move up or down relative to the rotary drive shaft 30. The automatic bolt disassembly device also includes a limit pin 110 fixed in the lower section of the rotary drive shaft 30. A limit guide groove extending straight up and down is provided in the sliding rotary shaft 40. The end of the limit pin 110 is accommodated in the limit guide groove and can abut against the upper and lower ends of the limit guide groove, thereby limiting the upper and lower limit positions of the sliding rotary shaft 40.

[0098] Preferably, the automatic bolt removal device also includes a rotation counter sensor bracket 240 and a position detection sensor bracket 250, both fixed to the top of the floating mounting plate 24. The rotation counter sensor bracket 240 and the position detection sensor bracket 250 are arranged opposite each other along the width direction of the sliding detection plate 60. A first inductive proximity switch 260 is mounted on the rotation counter sensor bracket 240. A detection hole that can trigger the first inductive proximity switch 260 is provided on the outer circumference of the rotating drive shaft 30. The output of the first inductive proximity switch 260 provides feedback on the number of rotations completed by the rotating drive shaft 30. A second inductive proximity switch 270 and a third inductive proximity switch 280 are respectively installed on the top and bottom of the position detection sensor bracket 250; when the sliding rotating shaft 40 moves up to the upper limit position, the bearing seat 80 moves up together with the sliding rotating shaft 40, and the second inductive proximity switch 270 can detect the outer wall surface of the bearing seat 80, then the second inductive proximity switch 270 is triggered; when the sliding rotating shaft 40 moves down to the lower limit position, the bearing seat 80 moves down together with the sliding rotating shaft 40, and the third inductive proximity switch 280 can detect the outer wall surface of the bearing seat 80, then the third inductive proximity switch 280 is triggered, and according to the output of the second inductive proximity switch 270 and the third inductive proximity switch 280, feedback is fed back that the sliding rotating shaft 40 moves up to the upper limit position or moves down to the lower limit position.

[0099] Furthermore, the installation structure of the disassembly sleeve 50 on the lower section of the sliding rotating shaft 40 is preferably as follows: Figure 4 and Figure 5 As shown, the automatic bolt removal device also includes a universal joint 120, a spring spacer 130 mounted on the lower end of the sliding rotating shaft 40, a connecting collar 140 mounted on the upper end of the removal sleeve 50, and a second compression spring 150. The upper end of the universal joint 120 is fixed to the lower end of the sliding rotating shaft 40. The lower end of the universal joint 120 is a ball head with a waist-shaped hole extending vertically. The ball head is rotatably inserted into the upper end of the removal sleeve 50, and the two are connected by a sleeve mounting pin 160 inserted into the waist-shaped hole. The spring spacer 130, the second compression spring 150, and the connecting collar 140 are sequentially abutted and all are sleeved around the outer circumference of the universal joint 120. In this way, the removal sleeve 50 can swing within a certain angle and push the sliding rotating shaft 40 to move up and down.

[0100] In summary, the automatic bolt disassembly device involved in this application can automatically disassemble the mold spring bolts, and during the disassembly process, the pneumatic blaster can swing flexibly to absorb the shaking of the mold spring bolts in various directions, effectively reducing the labor requirements of the prefabricated pile production line, reducing labor intensity, and improving the production efficiency of prefabricated piles.

[0101] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0102] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A bolt automatic disassembly device, comprising a mounting seat assembly (20), a rotation drive source (10) mounted on the mounting seat assembly (20), a rotation drive shaft (30) transmission-connected to the rotation drive source (10), a sliding rotation shaft (40) mounted on the rotation drive shaft (30) so as to be movable up and down, and a disassembly sleeve (50) mounted at the lower end of the sliding rotation shaft (40), wherein the disassembly sleeve (50) is used to be sleeved on the outer periphery of the bolt to be disassembled, and is characterized in that: The invention also includes a sliding detection plate (60) that moves up and down synchronously with the sliding rotation shaft (40), and a distance sensor (70) installed on the mounting seat assembly (20). The sliding detection plate (60) is installed on the mounting seat assembly (20) so as to be movable up and down, and the distance sensor (70) is aligned with the sliding detection plate (60).

2. The automatic bolt removal device according to claim 1, characterized in that: The mounting seat assembly (20) includes an adapter fixing frame (21) for connecting to the robot arm, a floating adapter ring (22) rotatably mounted on the bottom of the adapter fixing frame (21) around a first horizontal axis, a floating connecting frame (23) rotatably mounted in the floating adapter ring (22) around a second horizontal axis, a floating mounting plate (24) distributed on the lower side of the floating connecting frame (23), and a plurality of guide shafts (25) fixedly connected between the floating connecting frame (23) and the floating mounting plate (24), wherein the first horizontal axis and the second horizontal axis are perpendicular to each other, the rotary drive source (10) is rotatably mounted on the floating connecting frame (23) around a vertical axis, the sliding rotary shaft (40) is rotatably and vertically supported in the floating mounting plate (24), and the distance measuring sensor (70) is fixed to the floating adapter ring (22).

3. The automatic bolt removal device according to claim 2, characterized in that: It also includes a bearing seat (80) fixed to the bottom of the sliding detection plate (60), an angular contact ball bearing (81) is arranged in the bearing seat (80), the rotating drive shaft (30) is rotatably arranged in the angular contact ball bearing (81), there is a gap between the inner ring of the angular contact ball bearing (81) and the rotating drive shaft (30), and the bottom of the inner ring of the angular contact ball bearing (81) is in contact with the top of the sliding rotating shaft (40); The plurality of guide shafts (25) include at least one first guide shaft (251) and at least one second guide shaft (252). The first guide shaft (251) is movably disposed in the sliding detection plate (60) via a linear bearing. The second guide shaft (252) is movably disposed in the sliding detection plate (60). A first compression spring (26) and a shock-absorbing sleeve (27) are sleeved on the second guide shaft (252). The upper and lower ends of the first compression spring (26) are respectively in contact with the floating connecting frame (23) and the sliding detection plate (60). The upper and lower ends of the shock-absorbing sleeve (27) are respectively in contact with the sliding detection plate (60) and the floating mounting plate (24).

4. The automatic bolt removal device according to claim 3, characterized in that: The sliding detection plate (60) is a rectangular plate, the first guide shafts (251) are two and are symmetrically distributed along a diagonal line of the sliding detection plate (60), the second guide shafts (252) are two and are symmetrically distributed along another diagonal line of the sliding detection plate (60), and the remaining guide shafts (25) of the plurality of guide shafts (25) except the first guide shaft (251) and the second guide shaft (252) are symmetrically distributed on both sides of the width direction of the sliding detection plate (60).

5. The automatic bolt removal device according to claim 2, characterized in that: A transfer flange (28) is fixed on the top of the transfer fixing frame (21), and the transfer flange (28) is used for fixed connection with the output end flange of the robotic arm.

6. The automatic bolt removal device according to claim 2, characterized in that: The transfer fixing frame (21) is a closed structure on all sides. The transfer fixing frame (21) includes a frame top plate (211) and a frame bottom plate (212) arranged opposite to each other in the upper and lower directions, and a plurality of frame side plates (213) fixed between the frame top plate (211) and the frame bottom plate (212). The plurality of frame side plates (213) are fixed end to end, and each of the frame side plates (213) is provided with a plurality of through slots (214). The floating transfer ring (22) is rotatably mounted on the bottom of the frame bottom plate (212).

7. The automatic bolt removal device according to claim 1, characterized in that: A connecting flat key (90) is provided on the outer wall of the rotating drive shaft (30), the sliding rotating shaft (40) is sleeved on the outer periphery of the lower section of the rotating drive shaft (30), and a floating slide groove (41) extending straight up and down is provided on the inner wall of the sliding rotating shaft (40), the connecting flat key (90) is located in the floating slide groove (41), and the two are slidably matched.

8. The automatic bolt removal device according to claim 7, characterized in that: The invention also includes a limit pin (110) fixed in the lower section of the rotating drive shaft (30), and a limit guide groove extending straightly up and down is opened in the sliding rotating shaft (40), and the end of the limit pin (110) is accommodated in the limit guide groove and can abut against the upper and lower ends of the limit guide groove.

9. The automatic bolt removal device according to claim 1, characterized in that: The invention also includes a universal joint (120), a spring spacer (130) assembled at the lower end of the sliding rotating shaft (40), a connecting ring (140) assembled at the upper end of the disassembling sleeve (50), and a second compression spring (150). The upper end of the universal joint (120) is fixed to the lower end of the sliding rotating shaft (40). The lower end of the universal joint (120) is a ball head. A waist-shaped hole extending up and down is provided in the ball head. The ball head is rotatably inserted into the upper end of the disassembling sleeve (50), and the two are connected by a sleeve mounting pin (160) passing through the waist-shaped hole. The spring spacer (130), the second compression spring (150) and the connecting ring (140) are abutted in sequence and are all sleeved on the outer periphery of the universal joint (120).

10. The automatic bolt removal device according to claim 1, characterized in that: The rotation driving source (10) is a pneumatic blaster.

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