Automatic assembly equipment and production method of escalator step chain
Technical Field
The application relates to the technical field of escalator chain production, in particular to automatic assembly equipment and a production method of an escalator step chain.
Background
The stair chain is a connecting part for connecting the driving wheel and the stair, is arranged on two sides of the stair, and plays an important role in the motion of the stair.
In the related art, an escalator step chain is designed, referring to fig. 1, the escalator step chain comprises a plurality of chain link units 1 which are connected with each other, each chain link unit 1 comprises two rollers 11, a connecting link plate 12 and two pin shafts 13, two ends of the connecting link plate 12 are connected with the corresponding rollers 11, through holes 121 for the pin shafts 13 to pass through are formed in the two ends of the connecting link plate 12 corresponding to the circle centers of the rollers 11 along the thickness direction in a penetrating manner, and the pin shafts 13 are inserted into the circle centers of the rollers 11 after passing through the through holes 121, so that the assembly of the chain link units is completed. After the production of the roller 11, the connecting link plate 12 and the pin shaft 13 is completed, respectively, a worker is required to assemble the three, and the assembled link units 1 are connected to each other through the second connecting link plate 12, thereby manufacturing the completed stair step chain.
In view of the above related art, the inventor has found that when the roller, the connecting link plate and the pin shaft are assembled manually after production, the time is long, the labor amount is large, and the production and assembly efficiency of the stair chain of the escalator is low, so that improvement is needed.
Disclosure of Invention
In order to improve the production assembly efficiency of the stair chain of the escalator, the application provides automatic assembly equipment and a production method of the stair chain of the escalator.
The application provides automatic assembly equipment and a production method of an escalator step chain, which adopts the following technical scheme:
The automatic assembly equipment of the stair chain of the escalator comprises a frame, a transmission belt used for conveying rollers is rotatably connected to the frame, baffle plates are arranged on the side edges of the two length directions of the transmission belt, a connecting shaft is arranged between the baffle plates, a separation strip is sleeved on the outer wall of the connecting shaft, the separation strip is arranged along the length direction of the transmission belt, the rollers are separated into two rows by the separation strip and conveyed on the surface of the transmission belt, the baffle plates and the separation strip are propped against the side walls of the rollers, an assembling device I and an assembling device II are arranged above the transmission belt, the assembling device I is used for installing connecting chain plates and the rollers, and the assembling device II is used for connecting pin shafts with the connecting chain plates and the rollers.
Through adopting above-mentioned technical scheme, place the gyro wheel on the transmission band and remove the transportation, divide into two rows with the gyro wheel through the parting bead for the gyro wheel carries out orderly between baffle and parting bead, and fixes between link joint and round pin axle and the gyro wheel through assembly device one and assembly device two respectively, thereby can realize the concatenation to the automatic equipment of each chain link unit and whole chain, thereby can effectively reduce operating personnel's work load, improve the packaging efficiency of chain, have higher automaticity and convenience, help improving the economic benefits of chain production and assembly.
Preferably, the first assembling device comprises a mounting frame, a rotating motor, a first connecting plate, a second connecting plate, a plurality of clamping assemblies and two conveying frames, wherein the first connecting plate and the second connecting plate correspond to the two clamping assemblies and the conveying frames, the mounting frame is arranged on one side of the frame, one end of the mounting frame is bent and positioned above the conveying belt, the rotating motor is connected to the bottom wall of the bending part of the mounting frame, the first connecting plate and the second connecting plate are connected with an output shaft of the rotating motor, the first connecting plate and the second connecting plate are arranged in a crossed mode, the clamping assemblies are connected to the bottom wall of the first connecting plate or the second connecting plate, the conveying frames are arranged on one side of the mounting frame, the conveying frames are used for conveying connecting chain plates, a yielding groove for the connecting chain plates to be placed is formed in the side wall of one end of each separating bar, and the clamping assemblies are used for clamping the connecting chain plates on the surface of the conveying frames and installing the connecting chain plates with corresponding rollers.
Through the technical scheme, the connecting chain plate after production is placed on the conveying frame by workers, when the connecting chain plate moves to the tail end of the conveying frame, the rotating motor drives the first connecting plate and the second connecting plate to rotate, the clamping assemblies on the first connecting plate and the second connecting plate clamp the connecting chain plate on the corresponding conveying frame and rotate to the upper part of the corresponding roller through the driving of the rotating motor, the connecting chain plate is aligned to the corresponding roller through the clamping assemblies to be placed, so that the roller and the connecting chain plate can be accurately aligned, the second subsequent assembling device can connect the pin shaft with the connecting chain plate and the roller, the assembling efficiency of the escalator step chain can be effectively improved, the automation degree is higher, the labor capacity and the labor cost are reduced, and the escalator step chain is higher in economic benefit and convenience.
Preferably, the clamping assembly comprises an adjusting screw, a sliding block, a power piece, a lifting cylinder and a pneumatic clamp, wherein the first bottom wall and the second bottom wall of the connecting plate are respectively provided with an adjusting groove along the length direction, the adjusting screw is rotationally connected in the adjusting grooves, the sliding block is sleeved on the outer wall of the adjusting screw and is in threaded connection with the adjusting screw, the power piece is connected with the adjusting screw and can drive the adjusting screw to rotate, the lifting cylinder is connected to the bottom wall of the sliding block, the pneumatic clamp is connected to the end wall of a piston rod of the lifting cylinder, and a clamping jaw of the pneumatic clamp is used for being inserted into a through hole of a connecting chain plate and clamping the connecting chain plate.
Through adopting above-mentioned technical scheme, power piece drive accommodate the lead screw rotates, thereby can make the slider slide along the length direction of accommodate the lead screw, in order to drive lift cylinder and pneumatic clamp and remove, after pneumatic clamp removes to conveying frame top, lift cylinder just can drive pneumatic clamp and remove towards the direction of connecting the link joint, two clamping jaws of pneumatic clamp will support respectively in corresponding through-hole, and carry out the centre gripping to the link joint, thereby can remove the link joint through slider and lift cylinder, rotating motor will drive connecting plate one and connecting plate two and rotate, after the holder rotates to the conveyer belt top, lift cylinder, pneumatic clamp will place the link joint, make the through-hole of connecting the link joint can just to the centre of a circle of the gyro wheel that needs to connect, thereby realize the equipment of both, so that follow-up assembly device two can install the round pin axle, degree of automation is high, higher economic benefits and convenience.
Preferably, each conveying frame is provided with a deviation rectifying assembly, and the deviation rectifying assemblies are used for carrying out angle adjustment on the connecting chain plates on the surfaces of the conveying frames.
Through adopting above-mentioned technical scheme, when operating personnel places the link joint on the conveying frame and carries, can have the angle that connects the link joint to place misalignment, cause the unable accurate centre gripping to connect the link joint of clamping assembly, can adjust the angle of connecting the link joint through setting up the subassembly of rectifying to clamping assembly can carry out centre gripping and removal transportation to connecting the link joint steadily.
Preferably, the deviation rectifying assembly comprises a deviation rectifying frame, an electric cylinder, a deviation rectifying motor, a deviation rectifying block, a photographing device and a control panel, wherein the deviation rectifying frame is connected to the surface of the conveying frame, the electric cylinder is connected to the bottom wall of the deviation rectifying frame, the deviation rectifying cylinder is connected with the electric cylinder, the electric cylinder drives the deviation rectifying cylinder to slide relative to the deviation rectifying frame, the deviation rectifying motor is connected to the end wall of a piston rod of the deviation rectifying cylinder, the deviation rectifying block is connected with an output shaft of the deviation rectifying motor, a deviation rectifying groove for connecting a chain plate to be embedded is formed in the bottom wall of the deviation rectifying block, the photographing device and the control panel are both connected to the side wall of the conveying frame, the electric cylinder, the deviation rectifying motor and the photographing device are all electrically connected with the control panel, and the photographing device is used for photographing images connected with the chain plate and transmitting the images to the control panel, and the control panel is operated based on the images.
Through adopting the technical scheme, the photographing device photographs the connecting link plate passing through the deviation correcting frame in real time, the image is transmitted to the control panel, the angle comparison image preset in the control panel is subjected to comparison analysis, if the deviation of the placement angle of the connecting link plate is obtained, the electric cylinder, the deviation correcting cylinder and the deviation correcting motor are started, the deviation correcting block can be adjusted, the deviation correcting groove is opposite to the connecting link plate, the connecting link plate is embedded into the deviation correcting groove, the deviation correcting motor and the electric cylinder are started again, the angle of the connecting link plate is adjusted, the connecting link plate can be transported in an accurate angle on the conveying frame, and therefore the through holes of the connecting link plate can be accurately clamped by the two clamping jaws of the pneumatic clamp, the operation accuracy and convenience of the automatic assembly equipment are improved, the time for angle adjustment of the connecting link plate by operators is saved, and the assembly efficiency of the chain is improved.
Preferably, the second assembling device comprises a conveying frame, a sliding rail, a pushing cylinder, a thumb cylinder and a throwing piece, wherein the conveying frame is arranged above a conveying frame corresponding to the second connecting plate, the conveying frame is used for conveying a pin shaft, the sliding rail is connected to the second top wall of the connecting plate, the sliding rail is arranged towards the direction of the conveying frame, the thumb cylinder is slidably connected to the sliding rail, the pushing cylinder is connected to the second surface of the connecting plate, a piston rod of the pushing cylinder is connected with the thumb cylinder, the pushing cylinder pushes the thumb cylinder to move along the direction of the sliding rail, the throwing piece is connected to the second bottom wall of the connecting plate, the pin shaft is placed into the throwing piece after the thumb cylinder clamps the pin shaft, and the throwing piece is used for throwing the pin shaft into a through hole of the connecting plate.
Through the technical scheme, an operator places the produced pin shaft on the conveying frame for conveying, the end part of the pin shaft is clamped inside the conveying frame, the pushing cylinder drives the thumb cylinder to slide along the length direction of the sliding rail, the end part of the pin shaft can be clamped through the thumb cylinder, the pin shaft can be driven to move through the thumb cylinder, when the thumb cylinder moves to the throwing part, the thumb cylinder can loosen the pin shaft, the pin shaft can enter the throwing part in a homeotropic manner, when the rotating motor drives the connecting plate II to rotate to the mounting part of the pin shaft, the throwing part can lower the pin shaft, and therefore the roller and the connecting chain plate are fixed, the chain link mechanism has higher automation capability, the pin shaft can be accurately mounted, and the assembly efficiency of the chain link unit is effectively improved.
Preferably, the throwing piece comprises a fixed pipe, a sliding pipe, a moving cylinder, a yielding cylinder and an inserting block, wherein the fixed pipe is connected to the bottom wall of the second connecting plate, a connecting hole is formed in the second connecting plate in a penetrating mode in the thickness direction, the connecting hole is communicated with the fixed pipe, the sliding pipe is connected to the inner wall of the fixed pipe in a sliding mode, a sliding groove is formed in the outer wall of the fixed pipe in the length direction, the sliding groove is communicated with the inside of the fixed pipe, a limiting block is arranged on the outer wall of the sliding pipe, the limiting block is embedded into the sliding groove and slides in the length direction of the sliding groove, the moving cylinder is connected to the bottom wall of the second connecting plate, a piston rod of the moving cylinder is connected with the limiting block and drives the limiting block to move, a clamping groove for the inserting block to insert and slide is formed in the outer wall of one end of the sliding pipe in a penetrating mode, the end wall of the pin shaft is abutted to one end of the sliding block, the yielding cylinder is connected to the outer wall of the sliding pipe, and the piston rod of the yielding cylinder is connected with the inserting block and drives the inserting block to move in the depth direction of the clamping groove.
Through the technical scheme, after the pin shaft is placed into the fixed pipe by the thumb cylinder, the pin shaft slides into the sliding pipe and is propped against the plug-in block, so that the pin shaft cannot slide out of the sliding pipe, the rotating motor drives the connecting plate II to rotate, when the throwing part rotates to be aligned with the through hole of the connecting chain plate, the moving cylinder drives the limiting block and the sliding rod to slide along the length direction of the sliding groove, so that the sliding pipe is gradually close to the through hole, after the sliding pipe is close to the through hole, the yielding cylinder is started, the plug-in block is pulled out of the clamping groove by the yielding cylinder, the pin shaft which is in butt joint with the lost plug-in block falls into the through hole, and is penetrated to the circle center of the roller, so that the assembly of the connecting chain plate and the roller is realized, the automatic chain plate has higher automation capability and convenience, the time for independently assembling the pin shaft by workers is saved, and the assembly efficiency of the chain is effectively improved.
Preferably, an elastic baffle is arranged at one end of the conveying frame, which faces the second connecting plate.
Through adopting above-mentioned technical scheme, set up the elastic baffle can effectively prevent that the round pin axle from dropping from the exit of carriage, when the tip of round pin axle is held to thumb cylinder and is returned, the elastic baffle will take place deformation for the round pin axle can break away from the carriage, just can reset after the deformation, blocks next round pin axle, has higher practicality.
Preferably, a guide plate is arranged at the feeding port of the conveying belt, the guide plate is obliquely arranged towards the direction of the conveying belt, and the guide plate is higher than the conveying belt.
Through adopting above-mentioned technical scheme, set up the deflector and can make gyro wheel mutual butt under the effect of gravity to can make the clearance between the gyro wheel obtain effective control, help improving the installation accuracy of connecting link joint and round pin axle.
A production method of stair chain of escalator, punch a hole and blanking the flat steel into the link joint, and carry on the heat treatment to the said link joint after blanking, oxide layer treatment and flatness are processed, the processing is finished, punch a hole and form the through-hole;
Cutting and blanking the round bar to form a pin shaft, and carrying out annealing treatment and surface treatment on the formed pin shaft;
And placing the roller on a conveying belt for transportation, assembling the roller, the connecting chain plate and the pin shaft through automatic assembly equipment to form a chain link unit, and assembling the adjacent chain link units into a chain.
By adopting the technical scheme, the connecting link plate and the pin shaft are manufactured and processed respectively, and the roller, the connecting link plate and the pin shaft can be assembled automatically by the automatic assembly equipment, so that the time and the cost consumed by assembling the chain manually can be saved effectively, the labor capacity is reduced, and the working efficiency of chain production and assembly is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The first assembling device and the second assembling device are arranged to assemble the connecting chain plate and the pin shaft respectively, so that the problems that the traditional stair chain of the escalator needs to be assembled manually, the time consumption is long and the working efficiency is low are solved, the labor amount is reduced through automatic equipment, the rollers, the connecting chain plate and the pin shaft can be assembled accurately and rapidly, and the economic benefit and the practicability are high;
2. The structure such as the deviation correcting component and the guide plate can be used for adjusting the relative distance, the angle and the like of the connecting chain plate and the roller, so that the accuracy of the chain link units in assembly can be further improved, the time spent by operators in adjusting the chain link units with deviation in position is saved, and the automatic assembly equipment can continuously and stably work and has higher practicability.
Drawings
Fig. 1 is a schematic structural view of a link unit in the related art.
Fig. 2 is a schematic structural view of an automatic assembly apparatus for an escalator step chain according to an embodiment of the present application.
Fig. 3 is a schematic structural view of an assembling device according to an embodiment of the present application.
Fig. 4 is a partial enlarged view at a in fig. 3.
Fig. 5 is a schematic structural diagram of a deviation rectifying assembly according to an embodiment of the present application.
Fig. 6 is a partial enlarged view at B in fig. 2.
Fig. 7 is a schematic structural view of a dispenser according to an embodiment of the application.
Reference numerals illustrate 1, a chain link unit; 11, idler wheels, 12, connecting chain plates, 121, through holes, 13, pin shafts, 2, a frame, 21, a transmission belt, 22, a baffle plate, 23, a connecting shaft, 24, a separation bar, 241, a yielding groove, 25, a guide plate, 3, an assembly device I, 31, a mounting rack, 32, a rotating motor, 33, a connecting plate I, 34, a connecting plate II, 341, a connecting hole, 35, a clamping component, 351, an adjusting screw rod, 352, a sliding block, 353, a power part, 354, a lifting cylinder, 355, a pneumatic clamp, 36, a transmission frame, 37, an adjusting groove, 4, an assembly device II, 41, a transmission frame, 411, an elastic sheet, 42, a sliding rail, 43, a pushing cylinder, 44, a thumb cylinder, 45, a throwing part, 451, a fixed pipe, 4511, a sliding groove, 452, a sliding pipe, 4521, a limiting block, 4522, a clamping groove, 453, a moving cylinder, 454, a yielding cylinder, 455, a plug block, 5, a rectifying component, 51, a rectifying frame, 52, an electric cylinder, 53, a rectifying cylinder, 54, a rectifying motor, a rectifying block 55, a rectifying block, a rectifying device, a panel 551, a rectifying device, a panel 57, and a control device.
Detailed Description
The application is described in further detail below with reference to fig. 2-7.
The embodiment of the application discloses automatic assembly equipment for an escalator step chain. Referring to fig. 2, an automatic assembly equipment of staircase step chain, including frame 2, the material loading end intercommunication of frame 2 has deflector 25, and the deflector 25 slope sets up, and the height of deflector 25 is from deviating from the one end of frame 2 towards being close to the one end of frame 2 and reduce gradually, rotates on the frame 2 and is connected with conveyer belt 21, and conveyer belt 21 and deflector 25 intercommunication, conveyer belt 21 are used for carrying gyro wheel 11, when gyro wheel 11 slides to conveyer belt 21 surface under the effect of gravity on from deflector 25, can make adjacent gyro wheel 11 laminate each other under the effect of gravity to can improve the accuracy of follow-up chain equipment.
Referring to fig. 2, the side edges of the two length directions of the frame 2 are all connected with the baffle plates 22 through welding, the baffle plates 22 on two sides are connected with two connecting shafts 23 through welding, the outer wall of each connecting shaft 23 is provided with a separation bar 24 through a welding sleeve, the bottom edge of each separation bar 24 abuts against the surface of the corresponding conveying belt 21, the separation bars 24 are arranged along the length direction of the conveying belt 21, the surface of the conveying belt 21 is divided into two conveying areas with equal width by the separation bars 24, the rollers 11 can be conveyed on two sides of the separation bars 24, the rollers 11 are located between the baffle plates 22 and the separation bars 24 and abut against the baffle plates 22 and the separation bars 24, and therefore the rollers 11 can be stably conveyed to improve the accuracy of subsequent chain assembly.
Referring to fig. 2, an assembling device 3 is provided above the conveyor belt 21, and the assembling device 3 is used for installing the connecting link plate 12 and the roller 11.
Referring to fig. 2 and 3, the first assembling device 3 includes a mounting frame 31, a rotating motor 32, a first connecting plate 33, a second connecting plate 34, four clamping assemblies 35 and two conveying frames 36, wherein the first connecting plate 33 is provided with two clamping assemblies 35, the second connecting plate 34 is also provided with only two clamping assemblies 35, the clamping assemblies 35 on the same first connecting plate 33 or the second connecting plate 34 are respectively located at two ends of the plate body, and the first connecting plate 33 and the second connecting plate 34 are respectively correspondingly provided with one conveying frame 36.
Referring to fig. 2, the mounting frame 31 is disposed on the ground on one side of the frame 2, one end of the mounting frame 31 facing away from the ground is bent and folded above the transmission belt 21, the rotating motor 32 is connected to the bottom wall of the folded portion of the mounting frame 31 by welding, the first connecting plate 33 and the second connecting plate 34 are integrally formed, the first connecting plate 33 and the second connecting plate 33 are disposed in a crossing manner at the center, and the output shaft of the rotating motor 32 is connected to the outer wall of the crossing portion of the first connecting plate 33 and the second connecting plate 34 by welding, so that the first connecting plate 33 and the second connecting plate 34 can be driven to rotate by the rotating motor 32.
Referring to fig. 3 and 4, the clamping assembly 35 is connected to the bottom wall of the first connecting plate 33 or the second connecting plate 34, the clamping assembly 35 includes an adjusting screw 351, a slider 352, a power member 353, a lifting cylinder 354 and a pneumatic clamp 355, the bottom walls of the first connecting plate 33 and the second connecting plate 34 are provided with adjusting grooves 37 along the length direction, the adjusting screw 351 is rotatably connected in the adjusting grooves 37, the length direction of the adjusting screw 351 is consistent with the length direction of the adjusting grooves 37, the power member 353 is connected to the outer wall of the first connecting plate 33 or the second connecting plate 34 by welding, in this embodiment, the power member 353 is a motor, and an output shaft of the power member 353 passes through the first connecting plate 33 or the second connecting plate 34 and is connected with the end wall of the adjusting screw 351 by a coupling, so that the adjusting screw 351 can be driven to rotate.
Referring to fig. 3 and 4, a slider 352 is sleeved on the outer wall of the adjusting screw 351 and is in threaded connection with the adjusting screw 351, the slider 352 abuts against the inner wall of the adjusting groove 37, when the power piece 353 drives the adjusting screw 351 to rotate, the slider 352 can slide along the length direction of the adjusting screw 351, the base of a lifting cylinder 354 is connected to the bottom wall of the slider 352 through welding, a piston rod of the lifting cylinder 354 is arranged towards the ground direction, and a pneumatic clamp 355 is connected to the end wall of the piston rod of the lifting cylinder 354 through welding.
Referring to fig. 2 and 3, two conveying frames 36 are respectively disposed at different sides of the mounting frame 31 and are disposed towards the direction of the first connecting plate 33 or the second connecting plate 34, a conveying belt is rotatably connected to the conveying frames 36, the conveying frames 36 are used for conveying the connecting link plates 12, when the pneumatic clamp 355 moves to the upper side of the conveying frames 36 through the adjusting screw rod 351, the lifting cylinder 354 drives the pneumatic clamp 355 to lift, so that the clamping jaw of the pneumatic clamp 355 can be inserted into the through hole 121 of the connecting link plate 12 and clamp and convey the connecting link plates 12, and when the rotating motor 32 drives the first connecting plate 33 and the second connecting plate 34 to rotate to the upper side of the roller 11, the lifting cylinder 354 can be used for conveying the pneumatic clamp 355 to the lower side of the connecting link plates 12, so that the rollers 11 at two sides of the separating strip 24 can be connected. In this embodiment, a yielding groove 241 for placing the connecting link plate 12 is provided on a side wall of one end of the separating strip 24 below the mounting frame 31, the depth of the yielding groove 241 is greater than the thickness of the roller 11, and the clamping assemblies 35 on the first connecting plate 33 and the second connecting plate 34 are used for placing and mounting the connecting link plate 12 with different angles on the roller 11.
Referring to fig. 2 and 5, each of the conveying frames 36 is provided with a deviation rectifying component 5, and the deviation rectifying component 5 is used for carrying out angle adjustment on the connecting link plate 12 on the surface of the conveying frame 36, so that the connecting link plate 12 with relatively disordered placement can be adjusted, the clamping jaw of the subsequent pneumatic clamp 355 can be conveniently aligned with the through hole 121 of the connecting link plate 12, and stable clamping on the connecting link plate 12 is completed, so that the assembly accuracy of the chain is improved.
Referring to fig. 2 and 5, the rectifying assembly 5 comprises a rectifying frame 51, an electric cylinder 52, a rectifying cylinder 53, a rectifying motor 54, a rectifying block 55, a photographing device 56 and a control panel 57, wherein the rectifying frame 51 is connected to the surface of the conveying frame 36 through welding, a base of the electric cylinder 52 is connected to the bottom wall of the rectifying frame 51 through welding, the base of the rectifying cylinder 53 is connected with the electric cylinder 52, the rectifying cylinder 53 can slide relative to the rectifying frame 51 under the drive of a sliding plate of the electric cylinder 52 so as to adjust the direction of the rectifying cylinder 53, the base of the rectifying motor 54 is connected to the end wall of a piston rod of the rectifying cylinder 53 through welding, the rectifying block 55 is sleeved on the outer wall of an output shaft of the rectifying motor 54 in a key connection mode, the output shaft of the rectifying motor 54 can rotate Geng Sui, a rectifying groove 551 for being embedded by the connecting link plate 12 is formed in the bottom wall of the rectifying block 55, and the size of the rectifying groove 551 is mutually matched with the size of the connecting link plate 12;
Referring to fig. 2 and 5, the photographing device 56 is connected to the inner wall of the deviation rectifying frame 51 by welding, the photographing device 56 is arranged towards the connecting link plate 12 on the conveying frame 36 and can photograph the connecting link plate 12 transmitted on the conveying frame 36 in real time, the control panel 57 is connected to the outer wall of the conveying frame 36 by welding, in this embodiment, the electric cylinder 52, the deviation rectifying cylinder 53, the deviation rectifying motor 54 and the photographing device 56 are all electrically connected with the control panel 57, a PLC controller is arranged in the control panel 57, an emission angle diagram of the connecting link plate 12 with the correct orientation is prestored in the controller, an image of the connecting link plate 12 on the conveying frame 36 photographed by the photographing device 56 is transmitted to the control panel 57, the control panel 57 is operated based on the image control electric cylinder 52, the deviation rectifying cylinder 53 and the deviation rectifying motor 54, so that the connecting link plate 12 can be propped into the deviation rectifying groove 551, and the connecting link plate 12 can be rotated to an angle which can be clamped by the pneumatic clamp 355 by the operation of the electric cylinder 52 and the deviation rectifying motor 54, so that the assembly accuracy of the chain is improved.
Referring to fig. 2 and 6, an assembling device two 4 is further disposed above the frame 2, the assembling device two 4 is used for connecting the pin shaft 13 with the connecting link plate 12 and the roller 11, and the assembling device two 4 includes two conveying frames 41, two sliding rails 42, two pushing cylinders 43, four thumb cylinders 44 and four throwing members 45, wherein one conveying frame 41 corresponds to one sliding rail 42, one pushing cylinder 43, two thumb cylinders 44 and two throwing members 45.
Referring to fig. 2 and 6, the conveying frames 41 are connected above the conveying frames 36 corresponding to the second connecting plates 34 by welding, and are connected with the top wall of the deviation correcting frame 51 by welding, the two conveying frames 41 are arranged in parallel, the conveying frames 41 are two mutually parallel panels, one face of each panel, which is close to each other, is rotatably connected with a conveying belt, a gap between the conveying belts is the diameter of the pin shaft 13, and the end parts of the pin shafts 13 can abut against the conveying frames 41, so that the pin shafts 13 can be conveyed. In this embodiment, the elastic baffle 411 is welded at the outlet of the carriage 41, so that the excessive movement of the pin 13 can be effectively prevented, and the pin 13 is actively separated from the carriage 41, so as to improve the stability of the second assembly device 4 of the present application.
Referring to fig. 2 and 6, the sliding rail 42 is connected to the top wall of the second connecting plate 34, the two sliding rails 42 are respectively located at two ends of the top wall of the second connecting plate 34, the sliding rails 42 are arranged towards the direction of the conveying frame 41, the thumb cylinder 44 is slidably connected to the corresponding sliding rail 42, the pushing cylinder 43 is connected to the surface of the second connecting plate 34 through welding, and a piston rod of the pushing cylinder 43 is connected with a base of the corresponding thumb cylinder 44 through welding, so that under the pushing of the pushing cylinder 43, the thumb cylinder 44 can move along the direction of the sliding rail 42 and clamp and move the end part of the pin shaft 13 on the corresponding conveying frame 41.
Referring to fig. 2 and 6, the throwing member 45 is connected to the bottom wall of the second connecting plate 34, and the throwing member 45 is configured to receive the pin shaft 13 clamped by the thumb cylinder 44, and throw the pin shaft 13 into the through hole 121 of the connecting link plate 12 after the rotating motor 32 drives the second connecting plate 34 to rotate to a corresponding position.
Referring to fig. 6 and 7, the throwing member 45 includes a fixed pipe 451, a sliding pipe 452, two moving cylinders 453, two letting-off cylinders 454 and two inserting blocks 455, where the letting-off cylinders 454 and the inserting blocks 455 are arranged in a one-to-one correspondence, the fixed pipe 451 is connected to the bottom wall of the second connecting plate 34 by welding, the second connecting plate 34 is provided with a connecting hole 341 penetrating through in the thickness direction, the connecting hole 341 is communicated with the fixed pipe 451, and the fixed pipe 451 is communicated with the through hole 121 of the connecting link plate 12 to be mounted with the pin shaft 13.
Referring to fig. 2 and 7, a sliding tube 452 is slidably connected to an inner wall of a fixed tube 451, the sliding tube 452 abuts against the inner wall of the fixed tube 451, two sliding grooves 4511 are formed on an outer wall of the fixed tube 451 along a length direction, the two sliding grooves 4511 are symmetrical with respect to an axis of the fixed tube 451, the sliding grooves 4511 are communicated with the inside of the fixed tube 451, two limiting blocks 4521 are integrally formed on the outer wall of the sliding tube 452 corresponding to the sliding grooves 4511, each limiting block 4521 is embedded into a corresponding sliding groove 4511 and can slide along the length direction of the sliding groove 4511, each limiting block 4521 corresponds to a moving cylinder 453, the moving cylinders 453 are connected to the bottom wall of the second connecting plate 34 through welding, and a piston rod of each moving cylinder 453 is connected with the outer wall of the corresponding limiting block 4521 extending out of the sliding groove 4511 through welding and drives the limiting block 4521 and the sliding tube 452 to move, so that the sliding tube 452 approaches to the direction of the connecting link plate 12.
Referring to fig. 2 and 7, two clamping grooves 4522 for inserting and sliding corresponding inserting blocks 455 are formed in the outer wall of one end of the sliding tube 452 extending out of the fixed tube 451, after the pin shaft 13 enters the sliding tube 452, the end wall of the pin shaft 13 is inserted into one end of the sliding tube 452 by the two inserting blocks 455 to resist the pin shaft 13 from falling off, the yielding cylinder 454 is connected to the outer wall of the sliding tube 452 extending out of the fixed tube 451 by welding, the piston rods of the two yielding cylinders 454 face directions deviating from each other and are connected with the inserting blocks 455 by welding, so that the inserting blocks 455 can move along the depth direction of the clamping grooves 4522 under the driving of the piston rods of the yielding cylinders 454, and the pin shaft 13 losing the butt of the inserting blocks 455 falls into the circle centers of the through holes 121 and the roller 11 of the connecting link plates 12 in sequence, thereby completing the assembly of the chain.
The automatic assembly equipment for the escalator step chain has the implementation principle that the rollers 11 are placed on the conveying belt 21 for conveying, the clamping assemblies 35 on the first connecting plate 33 clamp the connecting link plates 12 and are assembled with the corresponding rollers 11, the clamping assemblies 35 on the second connecting plate 34 clamp the second connecting link plates 12 so that the corresponding rollers 11 can be connected, after the connecting link plates 12 are installed, the second assembling device 4 inserts the pin shafts 13 at the centers of the connecting link plates 12 and the rollers 11, so that the complete chain is assembled, the problems that the traditional escalator step chain needs to be assembled manually, the time consumption is long and the labor cost is high are solved, the assembly efficiency of the chain is improved, and the automatic assembly equipment has high economic benefits and practicability.
The embodiment of the application also discloses a production method of the stair chain of the escalator,
S1, preparing a connecting link plate 12, namely punching and blanking flat steel through a blanking machine to enable the flat steel to form a connecting link plate 12 blank with corresponding specification and size, carrying out heat treatment on the connecting link plate 12 to improve the mechanical property of the connecting link plate 12, polishing and grinding an oxide layer on the surface of the connecting link plate 12 after the heat treatment is finished to improve the overall flatness of the connecting link plate 12, and finally carrying out rough punching and fine punching on the flattened connecting link plate 12 to form a through hole 121;
s2, preparing a pin shaft 13, namely manufacturing round bars into the pin shaft 13 with corresponding specification and size through a blanking machine, annealing the blanked pin shaft 13 to remove stress of the pin shaft 13, and polishing the surface of the pin shaft 13 after the annealing treatment is completed;
And S3, assembling the chain link units 1, namely placing the roller 11 on the surface of the conveying belt 21 for conveying, placing the connecting chain plate 12 on the conveying frame 36 for conveying, placing the pin shaft 13 on the conveying frame 41 for conveying, assembling the roller 11, the connecting chain plate 12 and the pin shaft 13 through the first assembling device 3 and the second assembling device 4, splicing the roller 11, the connecting chain plate 12 and the pin shaft 13 into a connecting unit, and assembling the adjacent chain link units 1 through the first assembling device 3 into a second connecting chain plate 12 so that the adjacent chain link units 1 can be assembled into a complete chain.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.