Automatic assembly equipment and production method for escalator step chain

Abstract

The application relates to an escalator step chain automatic assembly equipment and a production method, and relates to the escalator chain production technical field, in order to solve the problems that the assembly of the existing escalator step chain is completed by manual work, the labor amount is large, and the production and assembly efficiency is low. It comprises a rack, a conveying belt for conveying rollers is rotationally connected to the rack, the two length direction sides of the conveying belt are both provided with baffles, a connecting shaft is arranged between the baffles, a partition strip is arranged on the outer wall of the connecting shaft, the partition strip is arranged along the length direction of the conveying belt, the rollers are separated into two rows on the conveying belt surface by the partition strip, and the baffles and the partition strip are both in abutment with the side walls of the rollers; an assembling device one and an assembling device two are arranged above the conveying belt, the assembling device one is used for installing connecting chain plates and the rollers, and the assembling device two is used for connecting pin shafts with the connecting chain plates and the rollers. The application has the effects of automatically assembling the escalator step chain, saving labor and improving the assembly efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the escalator chain production technical field, especially to an automatic assembly equipment and production method of escalator step chain. BACKGROUND

[0002] The escalator step chain is a connecting component for connecting the driving wheel and the escalator, which is installed on both sides of the escalator and plays an important role in the movement of the escalator.

[0003] In the related art, an escalator step chain is designed, referring to Figure 1 , comprising a plurality of connected chain link units 1, each chain link unit 1 comprises two rollers 11, a connecting chain plate 12 and two pin shafts 13, the two ends of the connecting chain plate 12 are connected with the corresponding rollers 11, the center of the corresponding roller 11 is penetrated along the thickness direction of the two ends of the connecting chain plate 12 to form a through hole 121 for the pin shaft 13 to pass through, and the pin shaft 13 is inserted into the center of the roller 11 after passing through the through hole 121 to complete the assembly of the chain link unit. After the production of the rollers 11, the connecting chain plate 12 and the pin shaft 13 is completed, the workers need to assemble them, and the assembled chain link units 1 are connected with each other through the second connecting chain plate 12, thereby forming a complete escalator step chain.

[0004] For the related technology in the above, the inventor finds that when the rollers, connecting chain plates and pin shafts are produced, manual assembly is needed, which consumes a lot of time and labor, and the production and assembly efficiency of the escalator step chain is low, so it needs to be improved. SUMMARY

[0005] In order to improve the production and assembly efficiency of the escalator step chain, the present application provides an automatic assembly equipment and production method of escalator step chain.

[0006] The automatic assembly equipment and production method of escalator step chain provided by the present application adopts the following technical scheme:

[0007] An automatic assembly equipment of escalator step chain, comprising a rack, a conveying belt for conveying rollers is rotatably connected to the rack, the two length direction sides of the conveying belt are provided with baffles, a connecting shaft is arranged between the baffles, a partition strip is sleeved on the outer wall of the connecting shaft, the partition strip is arranged along the length direction of the conveying belt, the partition strip separates the rollers into two rows conveyed on the surface of the conveying belt, and the baffles and the partition strip are in abutment with the side walls of the rollers; an assembly device one and an assembly device two are arranged above the conveying belt, the assembly device one is used for installing the connecting chain plate with the roller, and the assembly device two is used for connecting the pin shaft with the connecting chain plate and the roller.

[0008] By adopting the above technical scheme, the rollers are placed on the conveying belt for moving transportation, the rollers are divided into two rows by the partition strips, the rollers are orderly transported between the baffles and the partition strips, the connecting chain plates and the pin shafts are fixed between the rollers by the assembling device one and the assembling device two, so that the automatic assembly of each chain link unit and the splicing of the whole chain can be realized, the workload of the operators can be effectively reduced, the chain assembly efficiency is improved, the automation ability and the convenience are high, and the economic benefits of the chain production and assembly are improved.

[0009] Preferably, the assembling device one comprises a mounting frame, a rotating motor, a connecting plate one, a connecting plate two, a plurality of clamping assemblies and two conveying frames, the connecting plate one and the connecting plate two correspond to two clamping assemblies and one conveying frame; the mounting frame is arranged on one side of the rack, one end of the mounting frame is bent and located above the conveying belt, the rotating motor is connected to the bottom wall of the bent part of the mounting frame, the connecting plate one and the connecting plate two are connected to the output shaft of the rotating motor, the connecting plate one and the connecting plate two are cross arranged, and the clamping assembly is connected to the bottom wall of the connecting plate one or the connecting plate two; the conveying frame is arranged on one side of the mounting frame, and the conveying frame is used for conveying the connecting chain plate; the partition strip is located below the mounting frame, and a side wall at one end of the partition strip is provided with a gap slot for placing the connecting chain plate; the clamping assembly is used for clamping the connecting chain plate on the surface of the conveying frame and mounting the connecting chain plate on the corresponding roller.

[0010] By adopting the above technical scheme, the connecting chain plate produced by the worker is placed on the conveying frame for conveying, when the connecting chain plate moves to the end of the conveying frame, the rotating motor drives the connecting plate one and the connecting plate two to rotate, the clamping assembly on the connecting plate one and the connecting plate two clamps the connecting chain plate on the corresponding conveying frame, and the connecting chain plate is placed above the corresponding roller by the driving of the rotating motor, the connecting chain plate is aligned with the corresponding roller by the clamping assembly, so that the connecting chain plate and the roller can be accurately aligned, the pin shaft can be connected with the connecting chain plate and the roller by the subsequent assembling device two, the assembly efficiency of the escalator step chain is effectively improved, the automation degree is high, the labor and the labor cost are reduced, the economic benefits and the convenience are high.

[0011] Preferably, the clamping assembly comprises an adjusting screw rod, a sliding block, a power element, a lifting cylinder and a pneumatic clamp, the bottom wall of the connecting plate one and the connecting plate two is provided with an adjusting groove along the length direction, the adjusting screw rod is rotatably connected in the adjusting groove, the sliding block is sleeved on the outer wall of the adjusting screw rod and is threadedly connected with the adjusting screw rod, the power element is connected with the adjusting screw rod and can drive the adjusting screw rod to rotate, the lifting cylinder is connected to the bottom wall of the sliding block, and the pneumatic clamp is connected to the end wall of the piston rod of the lifting cylinder; the clamping jaw of the pneumatic clamp is used for being inserted into the through hole of the connecting chain plate and clamping the connecting chain plate.

[0012] By adopting the above technical scheme, the power element drives the adjusting screw to rotate, so that the sliding block can slide along the length direction of the adjusting screw to drive the lifting cylinder and the pneumatic clamp to move. When the pneumatic clamp moves above the conveying frame, the lifting cylinder drives the pneumatic clamp to move towards the connecting chain plate. The two clamping jaws of the pneumatic clamp will respectively enter the corresponding through holes and clamp the connecting chain plate. Therefore, the sliding block and the lifting cylinder can move the connecting chain plate, and the rotating motor drives the connecting plate I and the connecting plate II to rotate. When the clamping piece rotates above the conveying belt, the lifting cylinder and the pneumatic clamp place the connecting chain plate, so that the through hole of the connecting chain plate can face the center of the roller to be connected, thereby realizing the assembly of the two, so that the subsequent assembly device II can install the pin shaft. The degree of automation is high, and it has high economic benefit and convenience.

[0013] Preferably, each conveying frame is provided with a deviation correction assembly for adjusting the angle of the connecting chain plate on the surface of the conveying frame.

[0014] By adopting the above technical scheme, when the operator places the connecting chain plate on the conveying frame for conveying, the angle of the connecting chain plate may not be aligned, causing the clamping assembly to fail to accurately clamp the connecting chain plate. By providing the deviation correction assembly, the angle of the connecting chain plate can be adjusted so that the clamping assembly can stably clamp and transport the connecting chain plate.

[0015] Preferably, the deviation correction assembly comprises a deviation correction frame, an electric cylinder, a deviation correction cylinder, a deviation correction motor, a deviation correction block, a photographing device and a control panel. The deviation correction frame is connected to the surface of the conveying frame, the electric cylinder is connected to the bottom wall of the deviation correction frame, the deviation correction cylinder is connected to the electric cylinder, the electric cylinder drives the deviation correction cylinder to slide relative to the deviation correction frame, the deviation correction motor is connected to the piston rod end wall of the deviation correction cylinder, the deviation correction block is connected to the output shaft of the deviation correction motor, the deviation correction block bottom wall is provided with a deviation correction groove for embedding the connecting chain plate, the photographing device and the control panel are connected to the side wall of the conveying frame, the electric cylinder, the deviation correction cylinder, the deviation correction motor and the photographing device are electrically connected to the control panel, the photographing device is arranged towards the conveying frame, the photographing device is used to shoot the image of the connecting chain plate and transmit the image to the control panel, and the control panel controls the operation of the electric cylinder, the deviation correction cylinder and the deviation correction motor based on the image.

[0016] By adopting the technical scheme, the photographing device will take real-time photographs of the connecting chain plate passing through the correction frame and transmit the images to the control panel, and the control panel will compare and analyze the images according to the preset angle, if the deviation of the placement angle of the connecting chain plate is found, the electric cylinder, the correction air cylinder and the correction motor will be started to rotate, so that the correction block can be adjusted to make the correction groove face the connecting chain plate, and the connecting chain plate is embedded into the correction groove, and then the correction motor and the electric cylinder are started again to adjust the angle of the connecting chain plate, so that the connecting chain plate can be transported on the conveying frame at an accurate angle, thereby the two clamping jaws of the pneumatic clamp can accurately clamp the through hole of the connecting chain plate, the precision and convenience of the automatic assembly equipment of the application are improved, the time for the operator to adjust the angle of the connecting chain plate is saved, and the assembly efficiency of the chain is improved.

[0017] Preferably, the assembling device two comprises a conveying frame, a sliding rail, a pushing cylinder, a thumb cylinder and a dropping piece, the conveying frame is arranged above the conveying frame corresponding to the connecting plate two, the conveying frame is used for conveying the pin shaft, the sliding rail is connected to the top wall of the connecting plate two, the sliding rail is arranged towards the conveying frame, the thumb cylinder is slidingly connected to the sliding rail, the pushing cylinder is connected to the surface of the connecting plate two, the piston rod of the pushing cylinder is connected to the thumb cylinder, the pushing cylinder pushes the thumb cylinder to move along the direction of the sliding rail, and the dropping piece is connected to the bottom wall of the connecting plate two.

[0018] By adopting the technical scheme, the operator places the produced pin shaft on the conveying frame for conveying, the end of the pin shaft is clamped in the conveying frame, the pushing cylinder drives the thumb cylinder to slide along the length direction of the sliding rail, the thumb cylinder can clamp the end of the pin shaft, so that the thumb cylinder can drive the pin shaft to move, when the thumb cylinder moves to the dropping piece, the thumb cylinder releases the pin shaft, and the pin shaft enters the dropping piece by inertia, when the connecting plate two is rotated to the installation position of the pin shaft by the rotating motor, the dropping piece lowers the pin shaft, thereby fixing the roller and the connecting chain plate, and the application has high automation capability, can accurately install the pin shaft, and effectively improves the assembly efficiency of the chain link unit.

[0019] Preferably, the feeding member comprises a fixed tube, a sliding tube, a moving cylinder, a giving way cylinder and a plug-in block, the fixed tube is connected to the bottom wall of the second connecting plate, the second connecting plate is provided with a connecting hole penetrating through in the thickness direction, the connecting hole is communicated with the fixed tube, the sliding tube is slidingly connected to the inner wall of the fixed tube, the outer wall of the fixed tube is provided with a sliding groove in the length direction, the sliding groove is communicated with the inside of the fixed tube, the outer wall of the sliding tube is provided with a limiting block, the limiting block is embedded in 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, the piston rod of the moving cylinder is connected to the limiting block and drives the limiting block to move; the outer wall of one end of the sliding tube extending out of the fixed tube is provided with a clamping groove for the plug-in block to plug in and slide, the end wall of the pin shaft abuts against the one end of the sliding tube into which the plug-in block is plugged in, the giving way cylinder is connected to the outer wall of the sliding tube extending out of the fixed tube, the piston rod of the giving way cylinder is connected to the plug-in block and drives the plug-in block to move in the depth direction of the clamping groove.

[0020] By adopting the above technical scheme, when the thumb cylinder places the pin shaft into the fixed tube, the pin shaft will slide into the sliding tube by inertia and abut against the plug-in block, so that the pin shaft cannot slide out of the sliding tube; the second connecting plate is rotated by the rotating motor, when the feeding member is rotated 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 in the length direction of the sliding groove, so that the sliding tube gradually approaches the through hole, after the sliding tube approaches the through hole, the giving way cylinder is started, the giving way cylinder separates the plug-in block from the clamping groove, the pin shaft losing the abutment of the plug-in block will fall into the through hole and be penetrated into the center of the roller, so as to realize the assembly of the connecting chain plate and the roller, which has high automation ability and convenience, saves the time of the staff for separately assembling the pin shaft, and effectively improves the assembly efficiency of the chain.

[0021] Preferably, the conveying frame is provided with an elastic baffle at one end facing the second connecting plate.

[0022] By adopting the above technical scheme, the elastic baffle can effectively prevent the pin shaft from falling off from the outlet of the conveying frame, when the thumb cylinder clamps the end of the pin shaft and returns, the elastic baffle will be deformed, so that the pin shaft can be separated from the conveying frame, and after deformation, it will reset to block the next pin shaft, which has high practicality.

[0023] Preferably, a guide plate is arranged at the inlet of the conveying belt, the guide plate is inclinedly arranged towards the direction of the conveying belt, and the guide plate is higher than the conveying belt.

[0024] By adopting the above technical scheme, the guide plate can make the rollers abut against each other under the action of gravity, so as to effectively control the gap between the rollers, which helps to improve the installation accuracy of the connecting chain plate and the pin shaft.

[0025] A production method of an escalator step chain, punching and blanking a flat steel into a connecting chain plate, and performing heat treatment, oxidation layer treatment and flatness treatment on the blanked connecting chain plate, punching a through hole after the treatment is completed;

[0026] Cutting and blanking a round bar into a pin shaft, annealing and surface treating the formed pin shaft;

[0027] Transporting the rollers on a conveying belt, and assembling the rollers, connecting chain plates and pin shafts into chain link units through an automatic assembly device, and assembling adjacent chain link units into a chain.

[0028] By adopting the above technical solutions, the connecting chain plates and pin shafts are manufactured and processed respectively, and the rollers, connecting chain plates and pin shafts can be automatically assembled through the automatic assembly device of the present application, so that the time and cost consumed by manual assembly of the chain can be effectively saved, the labor amount is reduced, and the work efficiency of chain production and assembly is improved.

[0029] In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. The assembly device one and the assembly device two are arranged to assemble the connecting chain plates and pin shafts respectively, which improves the problem of long time consumption and low work efficiency of traditional escalator step chain assembly by manual assembly, and through the automatic equipment, the labor amount is reduced, the rollers, connecting chain plates and pin shafts can be precisely and quickly assembled, and the economic benefit and practicality are high;

[0031] 2. The deviation correcting assembly and the guide plate are arranged to adjust the relative distance and angle of the connecting chain plates and rollers, so that the precision of the chain link units during assembly can be further improved, the time consumed by the operator for adjusting the position deviation of the chain link units is saved, the automatic assembly equipment of the present application can work continuously and stably, and the practicality is high. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structure diagram of a chain link unit in related art.

[0033] Figure 2 is a structure diagram of an automatic assembly equipment of an escalator step chain of an embodiment of the present application.

[0034] Figure 3 is a structure diagram of an assembly device one of an embodiment of the present application.

[0035] Figure 4 is Figure 3 is a local enlarged view of A in

[0036] Figure 5 is a structural schematic view of the deviation rectifying assembly of the embodiment of the present application.

[0037] Figure 6 is Figure 2 is a local enlarged view at B in FIG. 8.

[0038] Figure 7 is a structural schematic view of the feeding piece of the embodiment of the present application.

[0039] Label explanation: 1, link unit; 11, roller; 12, connecting chain plate; 121, through hole; 13, pin shaft; 2, rack; 21, conveying belt; 22, baffle; 23, connecting shaft; 24, separation strip; 241, accommodation slot; 25, guide plate; 3, assembling device one; 31, mounting frame; 32, rotating motor; 33, connecting plate one; 34, connecting plate two; 341, connecting hole; 35, clamping assembly; 351, adjusting screw; 352, sliding block; 353, power piece; 354, lifting cylinder; 355, pneumatic clamp; 36, conveying frame; 37, adjusting groove; 4, assembling device two; 41, conveying frame; 411, elastic baffle; 42, sliding rail; 43, pushing cylinder; 44, thumb cylinder; 45, feeding piece; 451, fixed tube; 4511, sliding slot; 452, sliding tube; 4521, limiting block; 4522, clamping groove; 453, moving cylinder; 454, accommodation cylinder; 455, plug-in block; 5, deviation rectifying assembly; 51, deviation rectifying frame; 52, electric cylinder; 53, deviation rectifying cylinder; 54, deviation rectifying motor; 55, deviation rectifying block; 551, deviation rectifying groove; 56, photographing device; 57, control panel. DETAILED DESCRIPTION

[0040] The following will be described in detail in combination with the accompanying Figures 2-7 The present application will be further described in detail.

[0041] The embodiment of the present application discloses an automatic assembling equipment for escalator step chain. Referring to Figure 2 An automatic assembling equipment for escalator step chain, comprising a rack 2, a guide plate 25 is communicated at a feeding end of the rack 2, the guide plate 25 is inclinedly arranged, the height of the guide plate 25 gradually decreases from an end away from the rack 2 to an end close to the rack 2, a conveying belt 21 is rotationally connected on the rack 2, the conveying belt 21 is communicated with the guide plate 25, the conveying belt 21 is used for conveying the roller 11, when the roller 11 slides to the surface of the conveying belt 21 from the guide plate 25 under the action of gravity, the adjacent rollers 11 can be adhered to each other under the action of gravity, so that the precision of subsequent chain assembly can be improved.

[0042] Referring to Figure 2The two length direction sides of the rack 2 are connected with the baffle plates 22 through welding, two connecting shafts 23 are connected between the baffle plates 22 on the two sides through welding, the outer wall of the connecting shaft 23 is sleeved with the partition strips 24 through welding, the bottom edge of the partition strip 24 abuts against the surface of the conveying belt 21, the partition strip 24 is arranged along the length direction of the conveying belt 21, the partition strip 24 divides the surface of the conveying belt 21 into two conveying areas with equal width, so that the roller 11 can be conveyed on the two sides of the partition strip 24, the roller 11 is located between the baffle plate 22 and the partition strip 24 and abuts against the baffle plate 22 and the partition strip 24, so that the roller 11 can be stably conveyed, and the accuracy during subsequent chain assembly is improved.

[0043] With reference to Figure 2 The assembling device one 3 is arranged above the conveying belt 21 and is used for installing the connecting chain plate 12 and the roller 11.

[0044] With reference to Figure 2 and Figure 3 The assembling device one 3 comprises a mounting frame 31, a rotating motor 32, a connecting plate one 33, a connecting plate two 34, four clamping assemblies 35 and two conveying frames 36, wherein two clamping assemblies 35 are arranged on the connecting plate one 33, two clamping assemblies 35 are also arranged on the connecting plate two 34, the clamping assemblies 35 on the same connecting plate one 33 or the connecting plate two 34 are respectively located at the two ends of the plate body, and the connecting plate one 33 and the connecting plate two 34 are respectively provided with one conveying frame 36.

[0045] With reference to Figure 2 The mounting frame 31 is arranged on the ground on one side of the rack 2, one end of the mounting frame 31 away from the ground is bent and bent above the conveying belt 21, the rotating motor 32 is connected to the bottom wall of the bent part of the mounting frame 31 through welding, the connecting plate one 33 and the connecting plate two 34 are integrally formed, the connecting plate one 33 and the connecting plate two 34 are arranged in cross at the center, and the output shaft of the rotating motor 32 is connected to the outer wall at the cross of the connecting plate one 33 and the connecting plate two 34 through welding, so that the connecting plate one 33 and the connecting plate two 34 can be driven to rotate through the rotating motor 32.

[0046] With reference to Figure 3 and Figure 4The clamping assembly 35 is connected to the bottom wall of the first connecting plate 33 or the second connecting plate 34, and the clamping assembly 35 comprises an adjusting screw rod 351, a sliding block 352, a power component 353, a lifting cylinder 354 and a pneumatic clamp 355. The bottom wall of the first connecting plate 33 and the second connecting plate 34 is provided with an adjusting groove 37 along the length direction, and the adjusting screw rod 351 is rotationally connected in the adjusting groove 37. The length direction of the adjusting screw rod 351 is consistent with the length direction of the adjusting groove 37. The power component 353 is connected to the outer wall of the first connecting plate 33 or the second connecting plate 34 by welding. In the embodiment, the power component 353 is a motor. The output shaft of the power component 353 penetrates through the first connecting plate 33 or the second connecting plate 34 and is connected to the end wall of the adjusting screw rod 351 through a shaft coupling, so as to drive the adjusting screw rod 351 to rotate.

[0047] With reference to Figure 3 and Figure 4 The sliding block 352 is sleeved on the outer wall of the adjusting screw rod 351 and is threadedly connected with the adjusting screw rod 351. The sliding block 352 abuts against the inner wall of the adjusting groove 37. When the power component 353 drives the adjusting screw rod 351 to rotate, the sliding block 352 can slide along the length direction of the adjusting screw rod 351. The base of the lifting cylinder 354 is connected to the bottom wall of the sliding block 352 by welding. The piston rod of the lifting cylinder 354 is arranged towards the ground. The pneumatic clamp 355 is connected to the end wall of the piston rod of the lifting cylinder 354 by welding. In the embodiment, the pneumatic clamp 355 comprises two movable clamping jaws.

[0048] With reference to Figure 2 and Figure 3 The two conveying frames 36 are arranged on different side edges of the mounting frame 31 and are arranged towards the first connecting plate 33 or the second connecting plate 34. The conveying frame 36 is rotationally connected with a conveying belt and is used for conveying the connecting chain plate 12. When the pneumatic clamp 355 is moved above the conveying frame 36 through the adjusting screw rod 351, the pneumatic clamp 355 is lifted and lowered by the lifting cylinder 354, so that the clamping jaws of the pneumatic clamp 355 can be inserted into the through hole 121 of the connecting chain plate 12 and the connecting chain plate 12 is clamped and conveyed. When the first connecting plate 33 and the second connecting plate 34 are rotated above the roller 11 by the rotating motor 32, the pneumatic clamp 355 can be lowered by the lifting cylinder 354, so that the connecting chain plate 12 can connect the rollers 11 on both sides of the partition strip 24. In the embodiment, the partition strip 24 is provided with a gap slot 241 on one end side wall below the mounting frame 31, and the gap slot 241 has a depth greater than the thickness of the roller 11. The clamping assembly 35 on the first connecting plate 33 and the second connecting plate 34 is used for placing and installing the connecting chain plate 12 at different angles of the roller 11.

[0049] With reference to Figure 2 and Figure 5Each of the conveying frame 36 is provided with a deviation rectifying assembly 5, which is used for angle adjustment of the connecting chain plate 12 on the surface of the conveying frame 36, so that the relatively disordered connecting chain plate 12 can be adjusted, and the jaws of the subsequent pneumatic clamp 355 can be aligned with the through hole 121 of the connecting chain plate 12, so that the stable clamping of the connecting chain plate 12 is completed, thereby improving the assembly accuracy of the chain.

[0050] With reference to Figure 2 and Figure 5 , the deviation rectifying assembly 5 comprises a deviation rectifying frame 51, an electric cylinder 52, a deviation rectifying air cylinder 53, a deviation rectifying motor 54, a deviation rectifying block 55, a photographing device 56 and a control panel 57; the deviation rectifying frame 51 is connected to the surface of the conveying frame 36 by welding, the base of the electric cylinder 52 is connected to the bottom wall of the deviation rectifying frame 51 by welding, and the base of the deviation rectifying air cylinder 53 is connected with the electric cylinder 52; under the driving of the sliding plate of the electric cylinder 52, the deviation rectifying air cylinder 53 can slide relative to the deviation rectifying frame 51, so that the orientation of the deviation rectifying air cylinder 53 can be adjusted; the base of the deviation rectifying motor 54 is connected to the end wall of the piston rod of the deviation rectifying air cylinder 53 by welding, the deviation rectifying block 55 is sleeved on the outer wall of the output shaft of the deviation rectifying motor 54 in a keyed connection manner, and can rotate with the output shaft of the deviation rectifying motor 54; the bottom wall of the deviation rectifying block 55 is provided with a deviation rectifying groove 551 for embedding the connecting chain plate 12, and the size of the deviation rectifying groove 551 is matched with the size of the connecting chain plate 12.

[0051] With reference to Figure 2 and Figure 5 , the photographing device 56 is connected to the inner wall of the deviation rectifying frame 51 by welding, and is arranged in a direction facing the connecting chain plate 12 on the conveying frame 36, and can take real-time photos of the connecting chain plate 12 conveyed on the conveying frame 36; the control panel 57 is connected to the outer wall of the conveying frame 36 by welding, and in this embodiment, the electric cylinder 52, the deviation rectifying air cylinder 53, the deviation rectifying motor 54 and the photographing device 56 are electrically connected with the control panel 57; a PLC controller is arranged in the control panel 57, and the discharge angle diagram of the connecting chain plate 12 with correct orientation is pre-stored in the controller; the image of the connecting chain plate 12 on the conveying frame 36 taken by the photographing device 56 will be transmitted to the control panel 57, the control panel 57 controls the electric cylinder 52, the deviation rectifying air cylinder 53 and the deviation rectifying motor 54 to operate based on the image, so that the connecting chain plate 12 can be embedded into the deviation rectifying groove 551, and the connecting chain plate 12 can be rotated to an angle that can be clamped by the pneumatic clamp 355 through the operation of the electric cylinder 52 and the deviation rectifying motor 54, thereby improving the assembly accuracy of the chain.

[0052] With reference to Figure 2 and Figure 6The rack 2 is further provided with an assembling device two 4 above the rack 2, the assembling device two 4 is used for connecting the pin shaft 13 with the connecting chain plate 12 and the roller 11, the assembling device two 4 comprises two conveying frames 41, two slide rails 42, two push cylinders 43, four thumb cylinders 44 and four throwing pieces 45, wherein one conveying frame 41 corresponds to one slide rail 42, one push cylinder 43, two thumb cylinders 44 and two throwing pieces 45.

[0053] With reference to Figure 2 and Figure 6 The conveying frame 41 is connected to the top of the conveying frame 36 corresponding to the connecting plate two 34 by welding, and is connected to the top wall of the deviation rectifying frame 51 by welding, and the two conveying frames 41 are arranged in parallel with each other, and the conveying frame 41 is two parallel panels, one side of the panels is rotatably connected with a conveying belt, the gap between the conveying belts is the diameter of the pin shaft 13, and the end of the pin shaft 13 can abut against the conveying frame 41, so as to convey the pin shaft 13. In the embodiment, the outlet of the conveying frame 41 is connected with an elastic baffle 411 by welding, so as to effectively prevent the pin shaft 13 from moving excessively and causing the pin shaft 13 to be actively separated from the conveying frame 41, thereby improving the stability of the assembling device two 4.

[0054] With reference to Figure 2 and Figure 6 The slide rail 42 is connected to the top wall of the connecting plate two 34, and the two slide rails 42 are located at the two ends of the top wall of the connecting plate two 34, respectively, and the slide rail 42 is arranged towards the conveying frame 41, the thumb cylinder 44 is slidably connected to the corresponding slide rail 42, and the push cylinder 43 is connected to the surface of the connecting plate two 34 by welding, and the piston rod of the push cylinder 43 is connected to the bottom of the corresponding thumb cylinder 44 by welding, so that under the pushing of the push cylinder 43, the thumb cylinder 44 can move along the direction of the slide rail 42 and clamp and move the end of the pin shaft 13 on the corresponding conveying frame 41.

[0055] With reference to Figure 2 and Figure 6 The throwing piece 45 is connected to the bottom wall of the connecting plate two 34, and the throwing piece 45 is used for receiving the pin shaft 13 clamped by the thumb cylinder 44 and throwing the pin shaft 13 into the through hole 121 of the connecting chain plate 12 after the connecting plate two 34 is rotated to the corresponding position under the driving of the rotating motor 32.

[0056] With reference to Figure 6 and Figure 7The feeding piece 45 comprises a fixed tube 451, a sliding tube 452, two moving cylinders 453, two position cylinders 454 and two plug-in blocks 455, wherein the position cylinders 454 and the plug-in blocks 455 are arranged one by one in correspondence; the fixed tube 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 in the thickness direction, the connecting hole 341 is communicated with the fixed tube 451, and the fixed tube 451 is communicated with the through hole 121 of the connecting chain plate 12 to which the pin shaft 13 needs to be installed.

[0057] With reference to Figure 2 and Figure 7 The sliding tube 452 is slidingly connected to the inner wall of the fixed tube 451, and the sliding tube 452 abuts against the inner wall of the fixed tube 451; the outer wall of the fixed tube 451 is provided with two sliding grooves 4511 in the length direction, the two sliding grooves 4511 are symmetrical about the axis of the fixed tube 451, and the sliding grooves 4511 are communicated with the inside of the fixed tube 451; the outer wall of the sliding tube 452 is integrally provided with two limiting blocks 4521 corresponding to the sliding grooves 4511, the limiting blocks 4521 are embedded into the corresponding sliding grooves 4511 and can slide in the length direction of the sliding grooves 4511; each limiting block 4521 corresponds to a moving cylinder 453, and the moving cylinder 453 is connected to the bottom wall of the second connecting plate 34 by welding; the piston rod of the moving cylinder 453 is connected to the outer wall of the limiting block 4521 protruding out of the sliding groove 4511 by welding and drives the limiting block 4521 and the sliding tube 452 to move, so that the sliding tube 452 moves towards the direction of the connecting chain plate 12.

[0058] With reference to Figure 2 and Figure 7 The outer wall of one end of the sliding tube 452 protruding out of the fixed tube 451 is provided with two clamping grooves 4522 for embedding and sliding of the corresponding plug-in blocks 455; after the pin shaft 13 enters the sliding tube 452, the end wall of the pin shaft 13 will be stopped by the two plug-in blocks 455 embedded into one end of the sliding tube 452, so as to prevent the pin shaft 13 from falling; the position cylinders 454 are connected to the outer wall of the sliding tube 452 protruding out of the fixed tube 451 by welding; the piston rods of the two position cylinders 454 are arranged in directions away from each other, and are connected to the plug-in blocks 455 by welding, so that the plug-in blocks 455 can move in the depth direction of the clamping grooves 4522 under the driving of the piston rods of the position cylinders 454; the pin shaft 13 losing the abutment of the plug-in blocks 455 will fall into the through hole 121 of the connecting chain plate 12 and the center of the roller 11, thereby completing the assembly of the chain.

[0059] The implementation principle of the escalator step chain automatic assembly equipment provided in the embodiment of the application is as follows: the rollers 11 are placed on the conveying belt 21 for conveying, the clamping assembly 35 on the first connecting plate 33 clamps the connecting chain plate 12 and assembles the connecting chain plate 12 with the corresponding roller 11, the clamping assembly 35 on the second connecting plate 34 clamps the second connecting chain plate 12, so that the corresponding roller 11 can be connected; after the installation of the connecting chain plate 12 is completed, the assembly device two 4 inserts the pin shaft 13 into the center of the connecting chain plate 12 and the roller 11, so that the connecting chain plate 12 and the roller 11 are assembled into a complete chain, thereby saving the problem that the traditional escalator step chain needs to be assembled manually, consuming a long time and having a high labor cost, helping to improve the assembly efficiency of the chain, and having high economic benefits and practicality.

[0060] The embodiment of the application further discloses a production method of an escalator step chain,

[0061] S1: connecting chain plate 12 preparation: punching and blanking of the flat steel by a blanking machine to make the flat steel into a connecting chain plate 12 rough shape with a corresponding specification size; heat treatment is performed on the connecting chain plate 12 to improve the mechanical properties of the connecting chain plate 12, and after the heat treatment, the oxidation layer on the surface of the connecting chain plate 12 is polished and ground to improve the flatness of the connecting chain plate 12 as a whole, and finally the flat connecting chain plate 12 is subjected to rough punching and fine punching to form a through hole 121;

[0062] S2: pin shaft 13 preparation: a round bar is made into a pin shaft 13 with a corresponding specification size by a blanking machine, and the blanked pin shaft 13 is annealed to remove the stress of the pin shaft 13; after the annealing treatment, the surface of the pin shaft 13 is polished;

[0063] S3: assembly of the chain link unit 1: the rollers 11 are placed on the surface of the conveying belt 21 for conveying, the connecting chain plates 12 are placed on the conveying frame 36 for conveying, and the pin shafts 13 are placed on the conveying frame 41 for conveying, the rollers 11 and the connecting chain plates 12 and the pin shafts 13 are assembled by the assembly device one 3 and the assembly device two 4, thereby being spliced into a connecting unit, and the assembly device one 3 assembles the second connecting chain plate 12 of the adjacent chain link units 1, so that the adjacent chain link units 1 can be assembled into a complete chain.

[0064] The above are preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. An automatic assembly device for escalator step chains, characterized in that: Includes a frame (2), on which a conveyor belt (21) for conveying rollers (11) is rotatably connected. Baffles (22) are provided on both sides of the conveyor belt (21) along its length. A connecting shaft (23) is provided between the baffles (22). A partition strip (24) is fitted on the outer wall of the connecting shaft (23). The partition strip (24) is arranged along the length of the conveyor belt (21). The partition strip (24) holds the rollers (11) in place. The conveyor belt (21) is divided into two rows and conveyed on the surface of the conveyor belt (21). The baffle (22) and the separator (24) abut against the side wall of the roller (11). An assembly device 1 (3) and an assembly device 2 (4) are provided above the conveyor belt (21). The assembly device 1 (3) is used to install the connecting chain plate (12) and the roller (11). The assembly device 2 (4) is used to connect the pin (13) to the connecting chain plate (12) and the roller (11). The assembly device 1 (3) includes a mounting frame (31), a rotating motor (32), a connecting plate 1 (33), a connecting plate 2 (34), several clamping components (35), and two conveyor frames (36). The connecting plate 1 (33) and the connecting plate 2 (34) each correspond to two clamping components (35) and one conveyor frame (36). The mounting frame (31) is located on one side of the frame (2). One end of the mounting frame (31) is bent and located above the conveyor belt (21). The rotating motor (32) is connected to the bottom wall of the bent part of the mounting frame (31). The connecting plate 1 (33) and the connecting plate 2 (34) are both connected to the rotating motor (32). The output shaft of the connecting plate is connected to the connecting plate 1 (33) and the connecting plate 2 (34) are arranged crosswise. The clamping assembly (35) is connected to the bottom wall of the connecting plate 1 (33) and the connecting plate 2 (34). The conveyor frame (36) is set on one side of the mounting frame (31). The conveyor frame (36) is used to transport the connecting chain plate (12). The partition strip (24) has a clearance groove (241) on one side wall below the mounting frame (31) for placing the connecting chain plate (12). The clamping assembly (35) is used to clamp the connecting chain plate (12) on the surface of the conveyor frame (36) and install the connecting chain plate (12) with the corresponding roller (11). The assembly device two (4) includes a conveyor frame (41), a slide rail (42), a push cylinder (43), a thumb cylinder (44), and a dispensing component (45). The conveyor frame (41) is positioned above the conveyor frame (36) corresponding to the connecting plate two (34). The conveyor frame (41) is used to convey the pin (13). The slide rail (42) is connected to the top wall of the connecting plate two (34) and is positioned towards the conveyor frame (41). The thumb cylinder (44) is slidably connected to the slide rail (42). The push cylinder (45) is used to dispensing the pin (13). The cylinder (43) is connected to the surface of the connecting plate two (34). The piston rod of the pushing cylinder (43) is connected to the thumb cylinder (44). The pushing cylinder (43) pushes the thumb cylinder (44) to move along the slide rail (42). The dispensing component (45) is connected to the bottom wall of the connecting plate two (34). After the thumb cylinder (44) clamps the pin (13), it puts the pin (13) into the dispensing component (45). The dispensing component (45) is used to dispense the pin (13) into the through hole (121) of the connecting chain plate (12).

2. The automatic assembly equipment for escalator step chains according to claim 1, characterized in that: The clamping assembly (35) includes an adjusting screw (351), a slider (352), a power component (353), a lifting cylinder (354), and a pneumatic clamp (355). The bottom walls of both the first connecting plate (33) and the second connecting plate (34) have adjusting grooves (37) along their length. The adjusting screw (351) is rotatably connected to the adjusting groove (37). The slider (352) is sleeved on the outer wall of the adjusting screw (351) and is connected to the adjusting screw (351). 351) Threaded connection, the power component (353) is connected to the adjusting screw (351) and can drive the adjusting screw (351) to rotate, the lifting cylinder (354) is connected to the bottom wall of the slider (352), the pneumatic clamp (355) is connected to the piston rod end wall of the lifting cylinder (354), and the gripper of the pneumatic clamp (355) is used to insert into the through hole (121) of the connecting chain plate (12) and clamp the connecting chain plate (12).

3. The automatic assembly equipment for escalator step chains according to claim 1, characterized in that: Each of the conveyor frames (36) is provided with a correction component (5), which is used to adjust the angle of the connecting chain plate (12) on the surface of the conveyor frame (36).

4. The automatic assembly equipment for escalator step chains according to claim 3, characterized in that: The correction assembly (5) includes a correction frame (51), an electric cylinder (52), a correction cylinder (53), a correction motor (54), a correction block (55), a photographing device (56), and a control panel (57); the correction frame (51) is connected to the surface of the conveyor frame (36), the electric cylinder (52) is connected to the bottom wall of the correction frame (51), the correction cylinder (53) is connected to the electric cylinder (52), the electric cylinder (52) drives the correction cylinder (53) to slide relative to the correction frame (51), the correction motor (54) is connected to the piston rod end wall of the correction cylinder (53), and the correction block (55) is connected to the output shaft of the correction motor (54). The bottom wall of block (55) is provided with a correction groove (551) for the connecting chain plate (12) to be embedded. The photographing device (56) and the control panel (57) are both connected to the side wall of the conveyor frame (36). The electric cylinder (52), the correction cylinder (53), the correction motor (54) and the photographing device (56) are all electrically connected to the control panel (57). The photographing device (56) is set towards the conveyor frame (36). The photographing device (56) is used to take pictures of the connecting chain plate (12) and transmit the pictures to the control panel (57). The control panel (57) controls the operation of the electric cylinder (52), the correction cylinder (53) and the correction motor (54) based on the pictures.

5. The automatic assembly equipment for escalator step chains according to claim 1, characterized in that: The delivery component (45) includes a fixed tube (451), a sliding tube (452), a moving cylinder (453), a displacement cylinder (454), and a plug-in block (455). The fixed tube (451) is connected to the bottom wall of the connecting plate two (34). The connecting plate two (34) has a connecting hole (341) extending through it along the thickness direction. The connecting hole (341) communicates with the fixed tube (451). The sliding tube (452) is slidably connected to the inner wall of the fixed tube (451). The outer wall of the fixed tube (451) has a sliding groove (4511) extending along its length direction. The sliding groove (4511) communicates with the interior of the fixed tube (451). A limiting block (4521) is provided on the outer wall of the sliding tube (452). The limiting block (4521) is embedded in the sliding groove (4511) and extends along its length direction. The sliding groove (4511) slides along its length. The moving cylinder (453) is connected to the bottom wall of the connecting plate two (34). The piston rod of the moving cylinder (453) is connected to the limiting block (4521) and drives the limiting block (4521) to move. The outer wall of the end of the sliding tube (452) extending out of the fixed tube (451) is provided with a snap-fit ​​groove (4522) for the insertion block (455) to be inserted and slide. The end wall of the pin (13) abuts against the end of the insertion block (455) inserted into the sliding tube (452). The yielding cylinder (454) is connected to the outer wall of the sliding tube (452) extending out of the fixed tube (451). The piston rod of the yielding cylinder (454) is connected to the insertion block (455) and drives the insertion block (455) to move along the depth direction of the snap-fit ​​groove (4522).

6. The automatic assembly equipment for escalator step chains according to claim 1, characterized in that: An elastic baffle (411) is provided at one end of the conveyor frame (41) facing the connecting plate (34).

7. The automatic assembly equipment for escalator step chains according to claim 1, characterized in that: A guide plate (25) is provided at the feed inlet of the conveyor belt (21). The guide plate (25) is inclined toward the conveyor belt (21) and is higher than the conveyor belt (21).

8. A method for producing an escalator step chain, using an automatic assembly device for escalator step chains as described in any one of claims 1-7, characterized in that: Flat steel is punched and blanked to form connecting chain plates (12), and the blanked connecting chain plates (12) are heat-treated, oxide layer treated and flatness treated. After treatment, they are punched to form through holes (121); round bars are cut and blanked to form pins (13), and the formed pins (13) are annealed and surface-treated; rollers (11) are placed on conveyor belts (21) for transportation, and the rollers (11), connecting chain plates (12) and pins (13) are assembled into chain link units (1) by automatic assembly equipment, and adjacent chain link units (1) are assembled into a chain.

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