CN215967317U - Maintenance robot with online bolt tightening function - Google Patents

Abstract

The utility model belongs to the technical field of electric power operation climbing robots, and particularly relates to an overhauling robot with an online bolt tightening function. The angle iron clamping device comprises a host and an angle iron clamping component arranged on the host; the bolt tightening device for tightening the bolt is arranged at the head end of the main machine and comprises an extension arm and a working head fixed on the extension arm, the extension arm comprises a bottom frame fixed on the main machine, and a rotating assembly for driving the working head to rotate and a plane displacement assembly for driving the working head to perform fixed-point operation are arranged on the bottom frame; the main machine is also fixed with a sleeve auxiliary replacing box which is convenient for realizing high-altitude sleeve replacing operation with the working head, and the sleeve auxiliary replacing box and the bolt tightening device are both fixed at the head end of the main machine. The sleeve online replacement device can realize the sleeve online replacement function under full-altitude operation on the premise of ensuring safe construction, finally greatly saves labor and inspection cost, improves maintenance efficiency, and ensures safe and reliable operation of a power transmission system.

Description

Maintenance robot with online bolt tightening function

Technical Field

The utility model belongs to the technical field of electric power operation climbing robots, and particularly relates to an overhauling robot with an online bolt tightening function.

Background

The stability and the safety of the electric power are basic guarantees for promoting the development of various industries. In China, the electric angle steel towers shown in FIG. 16 are large in number and wide in distribution, and are exposed in a field environment or even a dusty strong wind and high humidity severe environment for a long time; in the subsequent maintenance process, maintenance personnel need to ascend and stably tighten the connecting bolts at the electric angle steel tower, the danger coefficient is high, the labor intensity is high, the idle time is long, the physical strength of the working personnel is easily overdrawn, the physical health of the working personnel is further harmed, and meanwhile, the maintenance mode is obviously extremely low in efficiency. Whether an overhaul robot used for an electric angle steel tower or other high-altitude operations can be developed so as to meet the requirement of bolt tightening operations under full high-altitude operations is an urgent technical problem to be solved in recent years in the field.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provides a smaller and more compact overhauling robot with an online bolt tightening function, has higher working reliability and stability, can ensure the force sealing effect and the shape sealing effect in the climbing process of the overhauling robot along an electric angle steel tower, and can realize the online sleeve replacing function under full-altitude operation by carrying a bolt tightening device and a sleeve auxiliary replacing box on the premise of ensuring safe construction, thereby greatly saving manpower and inspection cost, improving the overhauling efficiency and ensuring the safe and reliable operation of a power transmission system.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an overhaul robot that possesses online bolt retightening function which characterized in that: the angle iron clamping device comprises a host and an angle iron clamping component arranged on the host; the angle steel clamping assemblies are more than two groups and are sequentially arranged on the main machine along the length direction of the angle steel main material, and each angle steel clamping assembly can generate linear reciprocating motion along the length direction of the angle steel main material under the driving action of the linear driving part;

the angle steel clamping assembly comprises a fixed seat, wherein a pressing part for pressing the outer wall or the ridge line of the angle steel main material tightly and a clamping part for furling and clamping along the cross section direction of the angle steel main material are arranged on the fixed seat, and the clamping part and the pressing part apply force in opposite directions so as to clamp the angle steel main material; the clamping part comprises two symmetrical claw rods, the head ends of the claw rods form clamping ends, the tail ends of the claw rods respectively penetrate through a group of swing guide sleeves, so that the corresponding claw rods can do linear reciprocating motion along the axial direction of the matched swing guide sleeves, and the swing guide sleeves are hinged on the fixed seat through the vertical hinge seats; the clamping part also comprises a mounting plate and a push-pull plate which are horizontally arranged above and below the tail end of the claw rod respectively, the adjacent plate surfaces of the mounting plate and the push-pull plate are taken as working surfaces, a directional groove is concavely arranged at the working surface of the mounting plate, the appearance of the directional groove is in a shape of a Chinese character 'ba' gradually expanding from the rear end of the fixed seat to the front port of the fixed seat, a guide groove in a shape of a Chinese character 'yi' is concavely arranged on the working surface of the push-pull plate, a vertical push-pull shaft is arranged at the tail end of the claw rod, and two shaft ends of the vertical push-pull shaft are respectively matched with the directional groove and the guide groove, so that two shaft ends of the vertical push-pull shaft can perform synchronous slide rail guide actions in the directional groove and the guide groove; the push-pull plate is driven by the horizontal driving component to generate horizontal reciprocating motion vertical to the direction of the vertical push-pull shaft, and the groove length direction of the guide groove is intersected with the horizontal motion direction of the push-pull plate; the claw rod comprises a rear rod body and a front rod body which are hinged with each other through a vertical shaft, and the head end of the front rod body forms the clamping end; the head end of the limiting elastic sheet extends out of the swing guide sleeve and is radially bent towards the claw rod along the swing guide sleeve until the limiting elastic sheet is tightly abutted against the outer wall of the claw rod, so that the claw rod is elastically pressed on the wall of the swing guide sleeve; the tail end of the front rod body is concavely provided with a notch corresponding to the bending end of the limiting elastic sheet, when the vertical shaft is exposed out of the barrel cavity of the swing guide sleeve, the bending end can be clamped into the notch under the action of the elastic force of the limiting elastic sheet, and the angle between the front rod body and the rear rod body is larger than 180 degrees; the inner side wall of the front rod body is provided with an anchor point, one end of a reset tension spring is fixedly connected at the anchor point, and the other end of the reset tension spring is fixedly connected on the vertical shaft;

the bolt device that retightens that is used for retightening the bolt has been arranged to host computer head end department, and this bolt device that retightens includes the extension arm and is fixed in the working head on the extension arm, the extension arm is including fixing the bottom frame on the host computer, installs on the frame of bottom to be used for driving the working head to produce the rotating assembly of rotary motion and be used for driving the working head to produce the plane displacement subassembly of fixed point operation, wherein:

a rotating component: the angle steel angle iron comprises a rotating seat capable of generating rotating action on a bottom frame, wherein the rotating axis of the rotating seat is vertical to the length direction of an angle steel main material and is positioned on a symmetrical plane where the edge of the angle steel main material is positioned; the rotary seat is driven by a rotary power source to generate a specified action;

a plane displacement assembly: the X-axis displacement mechanism and the Y-axis displacement mechanism are vertical to each other in displacement direction; the X-axis displacement mechanism comprises an X-axis rack and an X-axis moving block capable of generating reciprocating linear motion along the length direction of the X-axis rack, the motion direction of the X-axis moving block and the rotary axis of the rotary seat form a forty-five-degree included angle, and the opening of the included angle points to the direction of the main angle steel material; the Y-axis displacement mechanism comprises a Y-axis rack and a Y-axis moving block which can generate reciprocating linear motion along the length direction of the Y-axis rack, and the Y-axis rack and the X-axis moving block are fixedly connected with each other;

working head: the striking anchor rod is arranged at the head end of the striking seat and used for positioning and rotating the sleeve, the outline of the head end of the striking anchor rod is matched with the outline of a preset dismounting hole at the sleeve, and a detachable elastic clamping or thread matching relation is formed between the head end of the striking anchor rod and the dismounting hole; the striking base is fixed on the Y-axis moving block, and a striking motor is arranged in the striking base so as to drive the striking anchor rod to rotate around the axis of the sleeve;

the main machine is also fixedly provided with a sleeve auxiliary replacing box which is convenient for realizing high-altitude sleeve replacing operation with the working head, and the sleeve auxiliary replacing box and the bolt tightening device are both fixed at the head end of the main machine; the sleeve auxiliary replacement box comprises a box body, wherein the box body is provided with more than two groups of accommodating holes for accommodating single sleeves, and the accommodating holes are sequentially arranged along a set direction; the auxiliary replacing box also comprises an unlocking pull rod parallel to the radial direction of the accommodating hole in the rod length direction, a guide cavity or a guide rail communicated with the accommodating hole is arranged at the side of the box body at the accommodating hole, the unlocking pull rod is positioned in the guide cavity or on the guide rail so as to generate reciprocating motion along the arrangement direction of the accommodating hole, and the auxiliary replacing box also comprises a power source for driving the unlocking pull rod to generate the motion; a limiting bulge is convexly arranged on one side of the unlocking pull rod, which faces the hole cavity of the accommodating hole; the limiting bulge extends into the hole cavity of the accommodating hole and forms a spigot fit for limiting the sleeve to generate an upward motion with a preset positioning notch at the sleeve; when the unlocking pull rod generates reciprocating motion, only one group of limiting protrusions and corresponding positioning notches can be separated from each other at the same time, so that the sleeve corresponding to the positioning notches is unlocked.

Preferably, the head end of the striking anchor rod is in a square prism shape matched with the appearance of the dismounting hole, a positioning pin hole is concavely arranged on the side wall of the head end, and an elastic pin capable of generating elastic telescopic action along the radial direction of the striking anchor rod is arranged in the positioning pin hole, so that elastic clamping fit is formed between the positioning pin hole and a notch on the wall of the dismounting hole; an X-axis lead screw is matched on the X-axis frame in a rotating way, and an X-axis moving block is matched on the X-axis lead screw in a threaded way; a Y-axis screw rod is matched on the Y-axis frame in a rotating way, and a Y-axis moving block is matched on the Y-axis screw rod in a threaded way; the X-axis screw rod and the Y-axis screw rod are respectively driven by a group of synchronous motors to generate corresponding rotation actions; the rotary power source is a rotary motor, the rotary seat is in rotary fit with the positioning support at the bottom frame, and power transmission fit is formed between the worm gear and the worm at the output shaft of the rotary motor.

Preferably, the box body comprises a rectangular box-shaped outer shell and a mounting substrate arranged in the outer shell, and the accommodating holes are uniformly distributed along the outer shell in sequence; the unlocking pull rod is in a rectangular rod body shape, an intersection is arranged between the rod body of the unlocking pull rod and the hole cavity of the accommodating hole, and an avoidance arc groove for avoiding an ascending path of the sleeve is arranged on the unlocking pull rod corresponding to each sleeve; the limiting bulges are formed in the areas between every two adjacent avoidance arc grooves along the rod length direction of the unlocking pull rod, and the width of each limiting bulge is sequentially increased or decreased so as to ensure that only one group of limiting bulges and corresponding positioning notches can be separated from each other at the same time; the mounting substrate is horizontally arranged so as to divide the box cavity of the outer shell into an upper box cavity and a lower box cavity; the box cover of the outer shell is provided with a mounting hole in a penetrating manner, the hole wall of the mounting hole forms a hole wall of the accommodating hole, the upper plate surface of the mounting substrate forms a hole bottom of the accommodating hole, and a sunk accommodating hole is formed finally; the unlocking pull rod extends along the upper box cavity and forms spigot fit with the corresponding sleeve in each accommodating hole.

Preferably, the power source is an electric push rod, the power source is fixed at the lower plate surface of the mounting substrate, and a telescopic shaft of the power source is fixedly connected with the power end of the unlocking pull rod through a connecting block; the unlocking pull rod is provided with induction points, the number of the induction points corresponds to that of the sleeves, and the distance between the induction points is equal to the distance between adjacent sleeves; the photoelectric switch for monitoring the position of the sensing point is arranged at the box body, and the sensing surface of the photoelectric switch is positioned on the action path of the sensing point.

Preferably, the linear driving part comprises a sliding motor arranged on the host and a sliding screw rod coaxially arranged with an output shaft of the sliding motor, the sliding screw rod is in rotary fit with the host, the rod length direction of the sliding screw rod is parallel to the length direction of the host, and a sliding sleeve is arranged on the fixed seat so as to form a screw rod nut structure with the sliding screw rod; a set of sliding tracks are respectively arranged on two sides of the sliding screw rod, sliding blocks are uniformly arranged on the fixed seat at each angle steel clamping component, and sliding guide cooperation with the guiding direction parallel to the length direction of the main machine is formed between the sliding blocks and the sliding tracks.

Preferably, the limiting elastic sheet is in an L-shaped plate shape, and the swing guide sleeve is in a square sleeve shape so as to be matched with a claw rod with a square cross section; the outer wall of the parallel vertical shaft of the swing guide sleeve is used as a matching wall, the horizontal plate section is attached to the matching wall, and the horizontal plate section is provided with a through hole in a penetrating manner; one end of the axial tension spring is fixed at the tail end of the horizontal plate section; the other end of the axial tension spring extends forwards along the length direction of the horizontal plate segment and passes through the through hole to be fixed on the matching wall; the through hole is a waist-shaped hole with the hole type length direction parallel to the horizontal plate length direction; and a group of radial tension springs are respectively arranged on two sides of the horizontal plate section, one end of each radial tension spring is fixed at the corresponding side wall of the vertical shaft on the swing guide sleeve, and the other end of each radial tension spring extends towards the same side of the horizontal plate section and is fixed at the same side.

Preferably, the tail end of the horizontal plate section is upwarped to form a hinge lug, a fixing column penetrating through the through hole is convexly arranged at the matching wall, and two ends of the axial tension spring are respectively fixed on the hinge lug and the fixing column; the two sides of the horizontal plate section are provided with support lugs, and the two side walls of the vertical shaft on the swinging guide sleeve are uniformly provided with anchor posts for fixing the radial tension spring.

Preferably, the two vertical push-pull shafts are coaxially arranged at the upper part and the lower part of the tail end of the claw rod respectively; rolling bearings which are convenient to form rolling fit with the directional grooves and the guide grooves are arranged at the corresponding shaft ends of the two vertical push-pull shafts; the straight-shaped guide groove is formed by sequentially arranging two groups of horizontal sub-groove bodies along the length direction of the push-pull plate, and each group of horizontal sub-groove bodies is correspondingly matched with a group of vertical push-pull shafts positioned at the tail end of the claw rod.

Preferably, the horizontal driving assembly comprises a push-pull screw rod, the push-pull screw rod is matched with the push-pull plate to form a screw rod sliding block mechanism, and the push-pull screw rod horizontally extends towards the rear of the fixed seat and is in power fit with an output shaft of the push-pull motor.

Preferably, the pressing part comprises a V-shaped block which is vertically arranged in the groove length direction and has a groove opening facing the direction of the ridge line of the main angle steel material, the groove bottom line of the V-shaped block forms a matching line for matching the ridge line of the main angle steel material, and two groove surfaces of the V-shaped block form matching surfaces for matching the two groove surfaces of the main angle steel material; the V-shaped block is arranged in an area formed by enclosing of the claw rod; the pressing part also comprises a driving mechanism for driving the V-shaped block to generate advancing and separating actions relative to the main angle steel material, the driving mechanism comprises two groups of screw sleeves horizontally arranged at the groove back of the V-shaped block, each screw sleeve is internally provided with a group of coaxial screw rods in a threaded fit manner, and the two groups of screw rods are sequentially arranged along the length direction of the main angle iron material and are positioned on the same vertical plane; the power ends of the two groups of screw rods are matched on the same synchronous motor through a synchronous belt.

The utility model has the beneficial effects that:

1) the device meets the requirement of tightening operation on the bolts on the electric angle steel tower, has higher working reliability and stability, can ensure the force sealing effect and the shape sealing effect of the device in the climbing process along the electric angle steel tower, finally replaces manpower, and meets the requirement of high-altitude operation with high precision and high efficiency.

On one hand, according to the conventional thinking, when the clamping jaw is actually used for clamping the angle steel main material, if the angle steel main material with larger size is encountered, in order to avoid roadblocks such as foot nails and the like, the claw rod is generally required to make larger-amplitude parallel displacement along the direction perpendicular to the angle steel main material, that is, the clamping jaw is required to have larger foot lifting height, and the thickness of the main machine or the clamping jaw is increased by the part of the parallel displacement, so that the size is huge. As the core part of the angle steel clamping assembly, the angle steel clamping assembly adopts the articulated claw rod and the limiting elastic sheet, so that the size is smaller, the main machine is closer to the main material of the angle steel, and the overall action stability is higher. Simultaneously, still possessed following function:

first, the claw bar has a larger opening area when it is opened. When the push-pull plate pushes the two groups of claw rods to move forward, the two groups of claw rods are opened under the action of the swing guide sleeve until the vertical shaft is exposed out of the cylinder opening of the swing guide sleeve; at the moment, under the action of the reset tension spring, the whole front rod body is bent backwards around the vertical shaft, namely the angle between the front rod body and the rear rod body is changed from 180 degrees originally to be larger than 180 degrees, so that the maximum opening amplitude of the claw rod is improved.

Second, the claw bar has more reliable force sealing property and shape sealing property when clamped. When the push-pull plate retracts to drive the two groups of claw rods to generate clamping action, the limiting elastic sheet firstly breaks away from the notch, and then under the retracting action of the claw rods relative to the swinging guide sleeve, the front rod body is pushed to reset to be in a state of 180 degrees with the rear rod body, so that the front rod body is retracted into the cylinder cavity of the swinging guide sleeve. And then, the tail end of the front rod body is fixed in the barrel cavity of the swing guide sleeve and is elastically compressed on the barrel wall of the swing guide sleeve by a limiting elastic sheet, so that the positioning reliability is ensured, and the problems of possible loose matching and inaccurate action caused by mutual sliding fit of the claw rod and the swing guide sleeve are avoided. The head end of the front rod body is hooked at the corresponding groove edge of the main material of the angle steel, and the pressing part is matched, so that reliable force sealing performance and shape sealing performance can be realized.

On the other hand, based on the current situation that the number of bolts on the electric angle steel tower is various and different in model, it is obvious that how to realize online sleeve replacement operation becomes a difficult problem. If the climbing robot with sleeves of different models is used at each time, the cost performance obviously cannot meet daily requirements.

In view of the above, the utility model further provides a bolt re-tightening device installed at the head end of the host, so that the position of the working head can be positioned through the matching of the rotating assembly and the plane displacement assembly, and the bolt re-tightening function of any point position can be realized through the striking motor on the working head; when the type of the bolt is changed, the sleeve at the striking anchor rod of the working head can be easily replaced on line, so that the purposes of convenience and high efficiency are achieved. It is worth noting that the rotation axis of the rotating assembly needs to be located on the symmetrical plane where the edge of the angle steel main material is located; therefore, the X-axis displacement mechanism with the included angle of 45 degrees can ensure that the X-axis displacement mechanism can always horizontally move along the wall surface of one outer wall of the main angle steel material, the Y-axis displacement mechanism also ensures that the working heads perform approaching and separating actions relative to the bolt to be tightened, and the controllability and the working accuracy can be effectively ensured.

In addition, due to the special high-altitude remote control using environment of the electric angle steel tower, the high-altitude accidental falling object is extremely dangerous, and therefore the safety of the operation is the first time. When the detachable structure of the working head is adopted and the working head is assembled on the ground, the safety is ensured, but the working efficiency cannot be maximized. The utility model abandons the ground assembly mode, adopts a unique high-altitude assembly structure instead, and utilizes the locking characteristic of the unlocking pull rod to the inner sleeve of the accommodating hole to ensure that only one group of sleeves are unlocked at the same time, and the group of sleeves are just the type of the sleeves required by the working head. Therefore, during actual work, the utility model can be completely suitable for the existing climbing robot and matched with the detachable working head, so that on the premise of ensuring safe construction, the function of online replacement of the sleeve during high-altitude operation can be synchronously realized, and the working efficiency can be maximized.

2) The axial tension spring is a key place where the limit elastic sheet can achieve instantaneous action: if only the radial tension spring is arranged, the limiting elastic sheet can also gradually slide into the notch when the claw rod performs the unfolding action, but practice proves that the clamping action is delayed rather than instantaneous, which is not allowed in the high-altitude remote control operation field with extremely high alignment requirement, and even the clamping is not firm, thereby causing safety accidents. According to the utility model, the axial tension spring is additionally arranged, when the claw rod is opened, the front rod body of the claw rod continuously extends out of the swing guide sleeve, and the bending end of the limiting elastic sheet is tightly pressed on the front rod body, so that under the action of friction force, the limiting elastic sheet starts to overcome the elastic force of the axial tension spring and generates follow-up forward motion along the length direction of the hole pattern of the through hole. Through the elasticity value of presetting the axial extension spring, when the preceding body of rod moved ahead to the breach and exposes the swing uide bushing, the elastic restoring force of axial extension spring just overcome above-mentioned frictional force this moment for spacing shell fragment contracts under the common elastic restoring force of radial extension spring and axial extension spring in the twinkling of an eye, and the card goes into and just exposes in the breach of swing uide bushing, and then realizes the purpose of instantaneous card income. Obviously, the instantaneous clamping action greatly improves the action accuracy and precision of the utility model, and obviously improves the stability and reliability of the action of the claw rod.

Drawings

FIGS. 1 and 2 are assembled views of the present invention;

FIG. 3 is a schematic perspective view of an angle iron clamping assembly;

FIG. 4 is an exploded view of the structure of FIG. 3;

FIG. 5 is an exploded view of the structure of FIG. 4;

FIG. 6 is a cross-sectional view of FIG. 3;

FIG. 7 is a schematic structural view of the angle iron clamping assembly in the jaw-open state;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a view showing the state of the position-limiting resilient tab engaged with the front rod body in the state shown in FIG. 7;

fig. 10 is a schematic perspective view of a limiting spring plate;

FIG. 11 is a schematic view of the claw rod during clamping;

FIG. 12 is a schematic view of the claw rod in a clamping state;

FIG. 13 is a schematic view of the bolt tightening device;

FIG. 14 is a perspective view of the rotating assembly;

FIG. 15 is an exploded assembly view of the structure shown in FIG. 14;

FIG. 16 is a perspective view of the X-axis displacement assembly;

FIG. 17 is an exploded assembly view of the structure shown in FIG. 16;

FIG. 18 is a perspective view of the Y-axis displacement assembly and the working head;

FIG. 19 is an exploded assembly view of the structure shown in FIG. 18;

FIG. 20 is an exploded view of the assembly of the work head;

FIG. 21 is a view showing the operation of the cartridge replacement assisting cartridge;

FIG. 22 is a front view of the structure of FIG. 21 with the outer housing removed;

FIG. 23 is a top view of FIG. 22;

FIG. 24 is a right side view of FIG. 22;

FIGS. 25 and 26 are flowcharts of the operation of the release lever;

FIG. 27 is a schematic structural view of an electric angle tower.

The actual correspondence between each label and the part name of the utility model is as follows:

a-angle steel main material b-sleeve b 1-positioning notch b 2-dismounting hole

11-extension arm 111-bottom frame 112-rotation assembly

112 a-rotary base 112 b-rotary motor 113-X axis displacement mechanism

113a-X axis frame 113b-X axis moving block 113c-X axis screw

114-Y axis displacement mechanism 114a-Y axis frame 114b-Y axis moving block

114c-Y axis screw rod 115-synchronous motor 12-working head 12 a-striking seat

12 b-striking anchor 12 c-elastic pin 12 d-striking motor

21-body 211-receiving hole 21 a-outer housing 21 b-mounting substrate

22-unlocking pull rod 22 a-avoiding arc groove 22 b-sensing point

23-power source 24-connecting block 25-photoelectric switch

30-main engine 31-sliding track 32-sliding block 33-sliding screw rod 34-sliding sleeve

35-sliding motor 40-angle steel clamping component 41-fixed seat 42-pressing part

421-V-shaped block 422-screw sleeve 423-screw 424-synchronous belt 425-synchronous motor

43-clamping part 431-claw rod 431 a-vertical push-pull shaft 431 b-rear rod body

431 c-front rod body 431 d-vertical shaft 431 f-notch

432-swing guide sleeve 432 a-matching wall 433-vertical hinge base 434-mounting plate

434 a-directional groove 435-push-pull plate 435 a-guide groove

436-position limiting spring 436 a-horizontal plate segment 436 b-bending end 436 c-hinge lug

437 a-reset tension spring 437 b-radial tension spring 437 c-axial tension spring

438 a-push-pull screw rod 438 b-push-pull motor

Detailed Description

For the sake of general understanding, the construction and operation of a particular embodiment of the climbing robot to which the utility model applies are described herein below:

climbing robots, here exemplified by inchworm-like structures as shown in fig. 1-2: the specific structure of the angle iron main frame comprises a strip-shaped frame-shaped main frame 30, an angle iron clamping assembly 40 is arranged at the position of the main frame 30 so as to realize the climbing function relative to the angle iron main material, and a work suite is arranged on the main frame 30 so as to realize the maintenance purpose of the specified function. In the present invention, the working kit is a bolt tightening device and a sleeve-assisted replacement cartridge as shown in fig. 13-26. Wherein: the bolt tightening device shown in fig. 13-20 is formed by matching the extension arm 11 and the working head 12, so that the on-line tightening function of the working kit on the bolts at the main material a of the angle steel at the four corners of the electric angle steel tower shown in fig. 27 and the bolts at the peripheral area is realized. The sleeve replacement aid cartridge shown in fig. 21-26 is an aid based on a bolt tightening device, and since there is more than one type of bolt and nut for fixing on a power angle tower, it may be necessary to replace the sleeve at any time at different times when tightening the bolt.

When the inchworm-type structure is further designed, the inchworm-type structure comprises a sliding track 31 arranged on one surface of a host 30 facing an angle steel main material, and a sliding block 32 capable of generating linear reciprocating motion along the sliding track 31 is arranged on the sliding track 31; the sliding blocks 32 are respectively provided with an angle iron clamping component 40, so that the angle iron clamping component 40 can be controlled to generate reciprocating motion along the length direction of the main machine 30 according to the motion of the control unit. Meanwhile, the host 30 can also be provided with a sliding motor 35, so that a sliding sleeve 34 on the angle steel clamping assembly is driven to generate a screw nut action through a sliding screw 33 coaxial with an output shaft of the sliding motor 35, and the sliding block 32 can generate a guiding action relative to the sliding rail 31. During operation, one or both of the two groups of angle steel clamping assemblies 40 can slide up and down on the sliding track 31 along the length direction of the main machine 30 through the sliding block 32, so that an action function similar to inchworm is realized. When the main machine 30 travels to a designated point along the main material of the angle steel and stops, the designated action can be realized by a work kit which is pre-assembled at the head end or other parts of the main machine 30. Wherein:

bolt tightening device

Fig. 13 to 20 are schematic structural views of the bolt fastening device, and it can be seen from the figures that the bolt fastening device comprises a bottom frame 111, a rotating assembly 112, a plane displacement assembly and a working head 12 which are assembled in sequence.

The bottom frame 111 is shown in fig. 13 and is a conventional fixed frame structure for connecting the rotating component 112 with the head end of the main frame 30, which will not be described herein. Referring to fig. 13-14, the rotating assembly 112 adopts a worm gear and worm transmission pair to meet the power transmission requirement from the rotating motor 112b to the rotating base 112a, so as to meet the rotation requirement of the rotating base 112a on the symmetrical plane where the current root angle steel main material edge is located; in other words, when only the rotation assembly 112 starts to operate, the swinging amount of the working head 12 on the left side of the angle steel main material is consistent with the swinging amount of the working head on the right side of the angle steel main material, so that the reference positioning requirement is realized, and a foundation guarantee is provided for the subsequent tightening of the fixed point bolt of the working head.

As shown in fig. 16 to 19, during assembly, the X-axis displacement mechanism 113 includes an X-axis frame 113a and an X-axis lead screw 113c rotatably fitted on the X-axis frame 113a, and an X-axis moving block 113b is further disposed on the X-axis lead screw 113c, so that the X-axis moving block 113b can generate a linear telescopic motion along the 45 ° angle direction of the rotation axis of the rotating base 112 a. Because the angle steel main material is 90-degree angle steel, and the rotation axis of the rotating base 112a is located on the symmetrical plane where the edge of the angle steel main material is located, the axis action direction of the X-axis moving block 113b is actually parallel to one side wall of the angle steel main material, so that the accurate positioning effect of the working head 12 relative to the bolt is ensured, and the working head 12 cannot generate action interference with the angle steel main material, thereby achieving multiple purposes. The Y-axis displacement mechanism 114 includes a Y-axis frame 114a, a Y-axis lead screw 114c, and a Y-axis moving block 114b, which are similar to the X-axis displacement mechanism 113, and the Y-axis frame 114a is fixed to the X-axis moving block 113b to ensure the linear movement of the striking block 12a fixed to the Y-axis moving block 114 b. The X-axis displacement mechanism 113 and the Y-axis displacement mechanism 114 are each driven by means of a corresponding synchronous motor 115.

As for the working head 12, as shown with reference to fig. 19 to 20, it is practical to perform an online swiveling action of the sleeve fixed to the striking bolt 12b by the striking motor 12d and the striking bolt 12b at the output shaft of the striking motor 12d, which are coaxially arranged. The rotation action of the sleeve b can be similar to a socket wrench, so that the bolt in the sleeve cavity is driven to generate the re-tightening action. Each time the sleeve is inserted and pulled relative to the bolt, the insertion can be completed through the Y-axis displacement mechanism 114; each time the relative position of the sleeve and the bolt is accurately located, this may be accomplished by means of the rotation assembly 112 in cooperation with the X-axis displacement mechanism 113.

Second, the auxiliary replacement box of the bush

Fig. 21-26 are schematic views showing one embodiment of the cartridge replacement-assisting box, that is, the box 21 is a rectangular parallelepiped. In fig. 21 to 26, the cartridge 21 includes an outer case 21a having a hollow cartridge chamber, and a horizontal plate-like mounting base plate 21b is disposed in the cartridge chamber of the outer case 21a so as to divide the cartridge chamber of the outer case 21a into two parts, an upper cartridge chamber and a lower cartridge chamber. In fig. 21, three sets of receiving holes 211 are disposed through the lid of the outer housing 21a, and the three sets of receiving holes 211 correspond to the M16 sleeve, the M18 sleeve, and the M20 sleeve, respectively. Each sleeve is coaxially recessed with a positioning notch b1 at the outer wall. An elongated guide chamber is formed in the outer case 21a and communicates with the accommodation hole 211 at the upper cartridge chamber. The unlocking rod 22 moves in the guide cavity, and the part of the unlocking rod 22 extending into the accommodating hole 211 is in a shape of a right-angled sawtooth protruding from one side as shown in fig. 23 and fig. 25 to 26, that is, a limit protrusion is formed. In other words, the portion of the unlocking lever 22 extending into the receiving hole 211 has an arc avoiding groove 22a recessed on one side in an isosceles trapezoid shape as shown in fig. 23 and fig. 25 to 26, and the above-mentioned limit protrusion is formed between the adjacent arc avoiding grooves 22 a. The tail end of the extending part of the unlocking pull rod 22, namely the power end, is fixed with a telescopic shaft of a power source 23 through a connecting block 24, and the power source 23 is an electric push rod. The electric push rod is fixed on the back of the mounting base plate 21b, and the horizontal movement of the telescopic shaft drives the unlocking pull rod 22 to generate horizontal movement along with the output of the electric push rod.

As shown in fig. 23, three convex right-angle saw teeth arranged at equal intervals are further arranged on the outer side of the unlocking pull rod 22, so that a sensing point 22b is formed; the three convex sensing points 22b are in contact with the photoelectric switches 25, respectively. When the electric push rod stops outputting, the unlocking pull rod 22 stops, and the position of the current unlocking pull rod 22 can be known through matching the photoelectric switch 25 and the sensing point 22 b.

When the push rod of the electric push rod contracts to the minimum position, the side edge of the unlocking pull rod 22 is completely clamped in the positioning notch b1 of the sleeve to limit the movement of all the sleeves;

as shown in fig. 22-24; when the unlocking pull rod 22 is stopped for the first time, the M20 sleeve corresponds to the most right avoiding arc groove 22a of the unlocking pull rod 22, the unlocking pull rod 22 does not limit the M20 sleeve, the M20 sleeve can be taken out, and the rest two sleeves correspond to the unlocking pull rod 22 and are straight edges or limiting protrusions. Similarly, as shown in fig. 25 to 26, the M16 sleeve and the M18 sleeve can be unlocked in sequence, so that only one sleeve can be unlocked and taken out at the same time.

When the bolt needs to be tightened again, the required sleeve b is unlocked according to the use condition, then the working head 12 of the extension arm 11 is aligned to the dismounting hole b2 at the rear of the sleeve b, and the bolt is pushed into the dismounting hole b2 while slowly rotating. The side surface of the working head 12 is provided with an elastic pin 12c, the hole cavity of the dismounting hole b2 is provided with a notch in a concave manner, after the elastic pin 12c is matched with the notch, the rotation of the working head 12 is stopped, and the extension arm 11 drives the working head 12 to carry the current sleeve b to be separated from the accommodating hole 211 at the box body 21, so that the operation is carried out. When the sleeve is used, the extension arm drives the working head to align the sleeve thereon with the corresponding receiving hole 211 on the box body 21. The unlocking pull rod 22 moves until the corresponding avoiding arc groove 22a is unlocked, and a storage path is left. After the sleeves have been pushed along the storage path into the respective receiving openings 211, the unlocking levers 22 are moved until the respective receiving openings 211 are locked again.

Third, angle steel clamping component 40

The angle iron clamping assembly 40 is designed to directly achieve the clamping and tightening and loosening functions of the main material of the relative angle iron. On the basis of the above structure, the structure of the angle iron clamping assembly 40 can be shown in fig. 3-12, that is, the angle iron clamping assembly includes a fixed seat 41, and a clamping portion 43 and a pressing portion 42 arranged in front of the fixed seat 41. In operation, the clamping portion 43 and the pressing portion 42 are matched with each other, so that the angle iron main material can be clamped on the angle iron main material in a wrapping manner.

The fixing base 41 is configured as shown in fig. 3-6, and functions as a mounting carrier for the clamping portion 43 and the pressing portion 42, and as a joint for the clamping portion 43, the pressing portion 42 and the host 30. The sliding block 32 can be disposed on the back of the fixing base 41, so as to form a rail-fitting relationship with the sliding rail 31 on the main body 30.

In actual assembly, the pressing portion 42 includes a V-shaped block 421. The V-shaped block 421 is a rectangular block with a V-shaped groove formed on one side as shown in fig. 3-6. Two sets of threaded sleeves 422 arranged in parallel are convexly arranged on the back surface of the V-shaped block 421, a set of screw rods 423 are respectively in threaded fit with the threaded sleeves 422 correspondingly one by one, the screw rods 423 are in rotary fit with the fixed seat 41, and the on-line rotary motion of the screw rods 423 is realized by a synchronous motor 425 and a synchronous belt 424. When the synchronous motor 425 acts, the synchronous motor 425 drives the screw 423 to rotate through the synchronous belt 424, and the rotation of the screw 423 pushes the screw sleeve 422 to axially reciprocate, so that the V-shaped block 421 fixedly connected with the screw sleeve 422 can be driven to move close to and away from the edge line of the main material of the angle steel.

The specific configuration of the clamping portion 43 is shown in fig. 3-12, and includes two sets of symmetrical claw rods 431, the two sets of claw rods 431 are inserted into the swing guide sleeve 432, and the swing guide sleeve 432 is fixed on the fixed base 41 through the vertical hinge base 433. During assembly, it is required to ensure that the upper shaft end of the vertical push-pull shaft 431a at the rear end of the claw rod 431 is accurately fitted in the orientation groove 434a, that is, the rolling bearing at the vertical push-pull shaft 431a is accurately in rolling fit with the groove wall of the orientation groove 434 a. Then, the guide groove 435a at the push-pull block is clamped into the lower shaft end of the vertical push-pull shaft 431a, and the push-pull lead screw 438b is inserted into the hole of the push-pull block. Finally, the push-pull screw rod 438b is driven to rotate by the rotation of the push-pull motor 438c, so that the push-pull block can be driven to generate reciprocating linear advancing motion relative to the push-pull screw rod 438 b. The linear motion of the push-pull plate 435 drives the motion of the claw rod 431 due to the existence of the vertical push-pull shaft 431a, and the motion track of the claw rod 431 is determined by the splay-shaped orientation slot 434a on the mounting plate 434. In particular, as shown in fig. 7-12, it can be seen that the claw bar 431 can perform the opening and clamping actions with respect to the main angle steel member.

In fact, the "one" -shaped guiding groove 435a may also be formed by two sets of "one" -shaped horizontal sub-groove bodies sequentially combined along the length direction of the push-pull plate 435, and each set of horizontal sub-groove bodies is correspondingly matched with a set of vertical push-pull shafts 431a at the tail end of the claw rod 431, as shown in fig. 5 and 8. The two groups of horizontal sub-groove bodies in the shape of a straight line may be completely in the same straight line, or may have a certain included angle as shown in fig. 5 and 8, and only the operation of pushing and pulling the plate is required to drive the claw rod 431 to move along the directional groove 434 a.

Based on the above structure, the claw bar 431 of the present invention further includes a rear bar body 431b and a front bar body 431c, and the front bar body 431c includes a V-shaped bar and a hook head. During operation, the tail end of the rear rod body 431b is provided with the vertical push-pull shaft 431a, the head end of the rear rod body 431b is hinged with the tail end of the V-shaped rod through the vertical shaft 431d, and the head end of the V-shaped rod is in detachable threaded fit with the hook head. Due to the arrangement of the return tension spring 437a, the front rod 431c and the opposite rear rod 431b generate backward tilting motion on the premise of no other constraint, that is, an included angle between the front rod 431c and the rear rod 431b is greater than 180 degrees as shown in fig. 7-8. And when aiming at the angle steel main material of different models, the gib head that the accessible was located the position of claw pole 431 head end is dismantled and the gib head of new size is changed to the angle steel main material of adaptation current model, the flexibility ratio is obviously higher in the operation. Meanwhile, the replacement part is only a hook head, and the rear rod body 431b and even the V-shaped rod which are matched with the movable parts such as the swing guide sleeve 432, the push-pull plate 435, the limiting elastic sheet 436 and the like do not need to be replaced, so that the efficiency and convenience of field replacement are effectively ensured, and multiple purposes are achieved.

On the premise that the front rod 431c and the rear rod 431b can be in the above state, the utility model is provided with a notch 431f at the tail end of the front rod 431c, and a limit elastic sheet 436 which can generate compound action under the action of a radial tension spring 437b and an axial tension spring 437c is arranged at the matching wall of the swing guide sleeve 432. The shape of the position-limiting elastic piece 436 is as shown in fig. 10, and the assembled state is as shown in fig. 9. By additionally arranging the axial tension spring 437c, when the claw rod 431 is opened, the front rod body 431c of the claw rod 431 continuously extends out of the swing guide sleeve 432, and at this time, because the bent end 436b of the limiting elastic piece 436 is tightly pressed on the front rod body 431c, under the action of friction force, the limiting elastic piece 436 starts to move forward along the length direction of the hole pattern of the through hole by overcoming the elastic force of the axial tension spring 437 c. By presetting the elastic force value of the axial tension spring 437c, when the front rod body 431c moves forward to the notch 431f and exposes out of the swing guide sleeve 432, the elastic restoring force of the axial tension spring 437c just overcomes the friction force, so that the limiting elastic sheet 436 instantaneously retracts under the common elastic restoring force of the radial tension spring 437b and the axial tension spring 437c and is clamped into the notch 431f just exposing out of the swing guide sleeve 432, and the purpose of instantaneous clamping is further achieved. Obviously, the instantaneous snapping action greatly improves the action accuracy and precision of the utility model, and obviously improves the stability and reliability of the action of the claw rod 431.

In order to ensure the assembly stability of the radial tension spring 437b and the axial tension spring 437c, as shown in fig. 9, the rear end of the horizontal plate section 436a is raised to form a hinge lug 436c, a fixing post penetrating through the through hole is protruded at the matching wall, and two ends of the axial tension spring 437c are respectively fixed on the hinge lug 436c and the fixing post. Meanwhile, lugs are disposed on both sides of the horizontal plate section 436a, and anchor posts are disposed on both side walls of the vertical shaft 431d of the swing guide 432, so as to fix the radial tension spring 437 b.

Claims (10)

1. The utility model provides an overhaul robot that possesses online bolt retightening function which characterized in that: comprises a main machine (30) and an angle iron clamping component (40) arranged on the main machine (30); the angle steel clamping assemblies (40) are more than two groups and are sequentially arranged on the main machine (30) along the length direction of the angle steel main material, and each angle steel clamping assembly (40) can generate linear reciprocating motion along the length direction of the angle steel main material under the driving action of the linear driving part;

the angle steel clamping assembly (40) comprises a fixed seat (41), a pressing part (42) for pressing against the outer wall or ridge line of the angle steel main material and a clamping part (43) for generating furling clamping action along the cross section direction of the angle steel main material are arranged on the fixed seat (41), and the clamping part (43) and the pressing part (42) apply force in opposite directions to clamp the angle steel main material; the clamping part (43) comprises two symmetrical claw rods (431), the head ends of the claw rods (431) form clamping ends, the tail end of each claw rod (431) respectively penetrates through a group of swing guide sleeves (432), so that the corresponding claw rod (431) can do linear reciprocating motion along the axial direction of the matched swing guide sleeves (432), and the swing guide sleeves (432) are hinged on the fixed base (41) through the vertical hinge base (433); the clamping part also comprises a mounting plate (434) and a push-pull plate (435) which are respectively and horizontally arranged above and below the tail end of the claw rod (431), the adjacent plate surfaces of the mounting plate (434) and the push-pull plate (435) are taken as working surfaces, a directional groove (434a) is concavely arranged on the working surface of the mounting plate (434), the shape of the directional groove (434a) is in a splayed shape gradually expanding from the rear end of the fixed seat (41) to the front port of the fixed seat (41), a linear guide groove (435a) is concavely arranged on the working surface of the push-pull plate (435), a vertical push-pull shaft (431a) is arranged at the tail end of the claw rod (431), two shaft ends of the vertical push-pull shaft (431a) are respectively matched with the directional groove (434a) and the guide groove (435a), so that the two shaft ends of the vertical push-pull shaft (431a) can perform synchronous sliding rail guide action in the orientation groove (434a) and the guide groove (435 a); the push-pull plate (435) is driven by the horizontal driving assembly to generate horizontal reciprocating motion perpendicular to the direction of the vertical push-pull shaft (431a), and the groove length direction of the guide groove (435a) is crossed with the horizontal motion direction of the push-pull plate (435); the claw rod (431) comprises a rear rod body (431b) and a front rod body (431c) which are hinged with each other through a vertical shaft (431d), and the head end of the front rod body (431c) forms the clamping end; a limiting elastic sheet (436) is fixedly attached to the swing guide sleeve (432), the head end of the limiting elastic sheet (436) extends out of the swing guide sleeve (432) and is bent towards the claw rod (431) along the radial direction of the swing guide sleeve (432) until the head end of the limiting elastic sheet abuts against the outer wall of the claw rod (431), so that the claw rod (431) is elastically pressed on the wall of the swing guide sleeve (432); the tail end of the front rod body (431c) corresponds to the bending end (436b) of the limiting elastic sheet (436) and is concavely provided with a notch (431f), when the vertical shaft (431d) is exposed out of the cylinder cavity of the swinging guide sleeve (432), the bending end (436b) can be clamped into the notch (431f) under the action of the elastic force of the limiting elastic sheet (436), and the angle between the front rod body (431c) and the rear rod body (431b) is larger than 180 degrees at the moment; an anchor point is arranged on the inner side wall of the front rod body (431c), one end of a reset tension spring (437a) is fixedly connected to the anchor point, and the other end of the reset tension spring is fixedly connected to the vertical shaft;

the bolt device that sticiss that is used for sticising the bolt has been arranged to host computer (30) head end department, and this bolt device that sticiss includes extension arm (11) and is fixed in work head (12) on extension arm (11), extension arm (11) are including fixing bottom frame (111) on host computer (30), and the installation is used for driving rotating assembly (112) that work head (12) produced the rotation action and is used for driving work head (12) to produce the plane displacement subassembly of fixed point operation on bottom frame (111), wherein:

rotating assembly (112): the angle steel forming machine comprises a rotating base (112a) capable of generating rotating motion on a bottom frame (111), wherein the rotating axis of the rotating base (112a) is vertical to the length direction of an angle steel main material, and is positioned on a symmetrical plane where the edge of the angle steel main material is positioned; the rotary seat (112a) is driven by a rotary power source to generate a specified action;

a plane displacement assembly: comprises an X-axis displacement mechanism (113) and a Y-axis displacement mechanism (114) with displacement directions perpendicular to each other; the X-axis displacement mechanism (113) comprises an X-axis rack (113a) and an X-axis moving block (113b) capable of generating reciprocating linear motion along the length direction of the X-axis rack (113a), the motion direction of the X-axis moving block (113b) and the rotation axis of the rotating seat (112a) form a forty-five degree included angle, and the opening of the included angle points to the direction of the angle steel main material; the Y-axis displacement mechanism (114) comprises a Y-axis frame (114a) and a Y-axis moving block (114b) capable of generating reciprocating linear motion along the length direction of the Y-axis frame (114a), and the Y-axis frame (114a) and the X-axis moving block (113b) are fixedly connected with each other;

working head (12): the striking anchor rod comprises a striking seat (12a) and a striking anchor rod (12b) which is arranged at the head end of the striking seat (12a) and used for positioning and rotating a sleeve, wherein the shape outline of the head end of the striking anchor rod (12b) is matched with the shape outline of a preset dismounting hole at the sleeve, and a detachable elastic clamping or thread matching relation is formed between the head end of the striking anchor rod (12b) and the dismounting hole; the striking base (12a) is fixed on the Y-axis moving block (114b), and a striking motor (12d) is arranged in the striking base (12a) so as to drive the striking anchor rod (12b) to rotate around the axis of the sleeve;

the main machine (30) is also fixedly provided with a sleeve auxiliary replacing box which is convenient for realizing high-altitude sleeve replacing operation with the working head (12), and the sleeve auxiliary replacing box and the bolt tightening device are both fixed at the head end of the main machine (30); the sleeve auxiliary replacing box comprises a box body (21), wherein the box body (21) is provided with accommodating holes (211) for accommodating single sleeves, and the accommodating holes (211) are more than two groups and are sequentially arranged along a given direction; the auxiliary replacing box also comprises an unlocking pull rod (22) parallel to the accommodating hole (211) in the rod length direction and in the radial direction, a guide cavity or a guide rail communicated with the accommodating hole (211) is arranged at the side of the accommodating hole (211) of the box body (21), the unlocking pull rod (22) is positioned in the guide cavity or on the guide rail so as to generate reciprocating motion along the arrangement direction of the accommodating hole (211), and the auxiliary replacing box also comprises a power source (23) used for driving the unlocking pull rod (22) to generate the motion; one side of the unlocking pull rod (22) facing the hole cavity of the accommodating hole (211) is convexly provided with a limiting bulge; the limiting bulge extends into a hole cavity of the accommodating hole (211) and is matched with a spigot which is formed between the preset positioning notches at the sleeve and used for limiting the sleeve to generate an upward motion; when the unlocking pull rod (22) generates reciprocating motion, only one group of limiting protrusions and corresponding positioning notches can be separated from each other at the same time, so that the sleeve corresponding to the positioning notches is unlocked.

2. The inspection robot having the online bolt tightening function according to claim 1, characterized in that: the head end of the striking anchor rod (12b) is in a square prism shape matched with the appearance of the dismounting hole, a positioning pin hole is concavely arranged on the side wall of the head end, and an elastic pin (12c) capable of generating elastic telescopic action along the radial direction of the striking anchor rod (12b) is arranged in the positioning pin hole, so that elastic clamping fit is formed between the elastic pin and a notch on the wall of the dismounting hole; an X-axis lead screw (113c) is rotatably matched on the X-axis frame (113a), and an X-axis moving block (113b) is in threaded fit on the X-axis lead screw (113 c); a Y-axis screw rod (114c) is rotatably matched on the Y-axis frame (114a), and a Y-axis moving block (114b) is in threaded fit on the Y-axis screw rod (114 c); the X-axis screw rod (113c) and the Y-axis screw rod (114c) are respectively driven by a group of synchronous motors (115) to generate corresponding rotary motion; the rotary power source is a rotary motor (112b), the rotary seat (112a) is matched on the positioning support at the bottom frame (111) in a rotating mode, and power transmission matching is formed between the worm gear and the worm at the output shaft of the rotary motor (112 b).

3. The inspection robot having the online bolt tightening function according to claim 2, characterized in that: the box body (21) comprises a rectangular box-shaped outer shell (21a) and a mounting substrate (21b) arranged in the outer shell (21a), and the accommodating holes (211) are uniformly distributed along the outer shell (21a) in sequence; the unlocking pull rod (22) is in a rectangular rod shape, an intersection is arranged between the rod body of the unlocking pull rod (22) and the hole cavity of the accommodating hole (211), and an avoiding arc groove (22a) for avoiding an ascending path of the sleeve is arranged on the unlocking pull rod (22) corresponding to each sleeve; the limiting bulges are formed in the areas between the adjacent avoidance arc grooves (22a) along the rod length direction of the unlocking pull rod (22), and the width of each limiting bulge is sequentially increased or decreased so as to ensure that only one group of limiting bulges and corresponding positioning notches can be separated from each other at the same time; the mounting substrate (21b) is horizontally arranged so as to divide the cartridge chamber of the outer case (21a) into an upper cartridge chamber and a lower cartridge chamber; a mounting hole penetrates through the box cover of the outer shell (21a), the hole wall of the mounting hole forms a hole wall of the accommodating hole (211), the upper plate surface of the mounting substrate (21b) forms the hole bottom of the accommodating hole (211), and finally, a sunk accommodating hole (211) is formed; an unlocking pull rod (22) extends along the upper box cavity and forms a spigot fit with the corresponding sleeve in each accommodating hole (211).

4. The inspection robot having an on-line bolt tightening function according to claim 3, characterized in that: the power source (23) is an electric push rod, the power source (23) is fixed on the lower plate surface of the mounting base plate (21b), and a telescopic shaft of the power source (23) is fixedly connected with the power end of the unlocking pull rod (22) through a connecting block (24); the unlocking pull rod (22) is provided with sensing points (22b), the number of the sensing points (22b) corresponds to that of the sleeves, and the distance between the sensing points (22b) is equal to the distance between adjacent sleeves; a photoelectric switch (25) for monitoring the position of the sensing point (22b) is arranged at the box body (21), and the sensing surface of the photoelectric switch (25) is positioned on the action path of the sensing point (22 b).

5. The inspection robot having the online bolt tightening function according to claim 4, characterized in that: the linear driving part comprises a sliding motor (35) arranged on the main machine (30) and a sliding screw rod (33) coaxially arranged with an output shaft of the sliding motor (35), the sliding screw rod (33) is matched on the main machine (30) in a rotating mode, the rod length direction of the sliding screw rod is parallel to the length direction of the main machine (30), and a sliding sleeve (34) is arranged on the fixed seat (41) so as to form a screw rod nut structure with the sliding screw rod (33); a set of sliding tracks (31) are respectively arranged on two sides of the sliding screw rod (33), sliding blocks (32) are uniformly arranged on the fixed seat (41) at each angle steel clamping component (40), and sliding guide fit in a direction parallel to the length direction of the main machine (30) is formed between the sliding blocks (32) and the sliding tracks (31).

6. An inspection robot with an online bolt tightening function according to claim 1, 2, 3, 4 or 5, wherein: the limiting elastic sheet (436) is L-shaped plate-shaped, and the swing guide sleeve (432) is square sleeve-shaped, so that the limiting elastic sheet is matched with a claw rod (431) with a square cross section; an outer wall of the swing guide sleeve (432) parallel to a vertical shaft (431d) is used as a matching wall (432a), a horizontal plate section (436a) is attached to the matching wall (432a), and a through hole is arranged on the horizontal plate section (436a) in a penetrating way; one end of an axial tension spring (437c) is fixed at the tail end of the horizontal plate section (436 a); the other end of the axial tension spring (437c) extends forwards along the length direction of the horizontal plate section (436a) and passes through the through hole to be fixed on the matching wall (432 a); the through hole is a waist-shaped hole with the hole type length direction parallel to the length direction of the horizontal plate section (436 a); and a group of radial tension springs (437b) are respectively arranged on two sides of the horizontal plate section (436a), one end of each radial tension spring (437b) is fixed at the corresponding side wall of the vertical shaft (431d) on the swinging guide sleeve (432), and the other end of each radial tension spring (437b) extends towards the same side of the horizontal plate section (436a) and is fixed at the side.

7. The inspection robot having an online bolt tightening function according to claim 6, characterized in that: the tail end of the horizontal plate section (436a) is tilted upwards to form a hinge lug (436c), a fixing column penetrating through the through hole is convexly arranged at the matching wall (432a), and two ends of an axial tension spring (437c) are respectively fixed on the hinge lug (436c) and the fixing column; lugs are arranged on two sides of the horizontal plate section (436a), and anchor posts are arranged on two side walls of a vertical shaft (431d) on the swing guide sleeve (432) so as to fix the radial tension spring (437 b).

8. An inspection robot with an online bolt tightening function according to claim 1, 2, 3, 4 or 5, wherein: the two vertical push-pull shafts (431a) are coaxially arranged at the upper part and the lower part of the tail end of the claw rod (431); rolling bearings which are convenient to form rolling fit with the directional grooves (434a) and the guide grooves (435a) are arranged at the corresponding shaft ends of the two vertical push-pull shafts (431 a); the straight-line-shaped guide groove (435a) is formed by two groups of horizontal sub-groove bodies which are sequentially arranged along the length direction of the push-pull plate (435), and each group of horizontal sub-groove bodies is correspondingly matched with a group of vertical push-pull shafts (431a) positioned at the tail end of the claw rod (431).

9. The inspection robot having an on-line bolt tightening function according to claim 8, characterized in that: the horizontal driving assembly comprises a push-pull screw rod (438a), the push-pull screw rod (438a) is matched with a push-pull plate (435) to form a screw rod sliding block mechanism, and the push-pull screw rod (438a) horizontally extends towards the rear of the fixed seat (41) and is in power fit with an output shaft of a push-pull motor (438 b).

10. An inspection robot with an online bolt tightening function according to claim 1, 2, 3, 4 or 5, wherein: the pressing part (42) comprises a V-shaped block (421) which is vertically arranged in the groove length direction and the groove opening of which faces to the direction of the ridge line of the main angle steel material, the groove bottom line of the V-shaped block (421) forms a matching line used for matching the ridge line of the main angle steel material, and two groove surfaces of the V-shaped block (421) form matching surfaces used for matching the two groove surfaces of the main angle steel material; the V-shaped block (421) is arranged in an area formed by enclosing of the claw rod (431); the pressing part (42) further comprises a driving mechanism for driving the V-shaped block (421) to generate advancing and separating actions relative to the angle iron main material, the driving mechanism comprises two sets of threaded sleeves (422) horizontally arranged at the groove back of the V-shaped block (421), each threaded sleeve (422) is internally provided with a coaxial threaded matching set of screw rods (423), and the two sets of screw rods (423) are sequentially arranged along the length direction of the angle iron main material and are positioned on the same vertical plane; the power ends of the two groups of screws (423) are matched on the same synchronous motor (425) through a synchronous belt (424).

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