CN112846415A - Single-machine truss integrated stacker - Google Patents

Abstract

A single-machine truss integrated stacker comprises a rack, a feeding device, a discharging device, a transfer device and a conveying device, wherein the discharging device, the transfer device and the conveying device are arranged side by side; the feeding device is connected with the discharging device, arranged below the conveying device and connected with the rack, and the transfer device is positioned above the conveying device and arranged side by side with the feeding device. The blank conveyed by the conveying device is jacked by the feeding device, conveyed to a to-be-processed area of the machine tool by the transfer device, transferred to the blanking device and conveyed to an appointed position by the conveying device. Through loading transfer device on loading attachment and unloader, solve the limited stroke of lathe clamping jaw size and can't directly snatch the work piece problem of windrow material loading station in the windrow, reduce cost just reduces the space. The transfer device and the feeding and discharging device are arranged in the same row, so that the path can be reduced, and the working beat is improved.

Description

Single-machine truss integrated stacker

Technical Field

The invention relates to peripheral auxiliary conveying equipment of a gear processing machine tool, in particular to a multi-station stacker with a workpiece transferring function.

Background

Existing gear cutting machines, such as hobbing machines, shaving machines and gear grinding machines, are provided with four-station rotatable annular clamping jaws, but generally are limited by the overall dimensions of the machine, and the rotating radius of the annular clamping jaws cannot be increased freely. Therefore, when the stacker carries a workpiece with a large outer diameter, the width of the stacker is increased, and the annular clamping jaw of the machine tool cannot directly grab a blank workpiece on the feeding station in the stacker. In order to realize the above action process, a corresponding external truss manipulator is generally required to be matched between the machine tool and the stacker. Due to the fact that a mechanism needs to be added, not only is the cost increased, but also the control difficulty, the butt joint precision and the like of the whole device are affected.

The patent of application number 201820306756.2 discloses an unloading system in automation of work piece contains grasping system, and grasping system contains the horizontal track that the level was arranged on containing the stand, horizontal track on have the support that can control on horizontal track, the support on install vertical portion down, this vertical portion below contains the manipulator, vertical portion avris contain the avris fixed part, the avris fixed part contain the screw hole, still contain the insertion axle that can insert in this screw hole, the insertion axle below contains the magnet sucking disc. To above-mentioned utility model patent, there are following several problems:

(1) although the charging tray can rotate to a designated position along with the rotating platform, the mechanical arm can grab the workpiece and automatically move to a machine tool machining tool. In actual use, however, the height of a single workpiece cannot be confirmed, so that the total height of a stack of multiple workpieces is uncertain, and the position of each time the manipulator grabs the workpiece is uncertain. This results in a robot control program that is not fixed in terms of logic algorithm.

(2) Around the rotary platform and the charging tray on the cyclic feeding part, the mechanical arms carried on the two-shaft truss have no perfect protection measures, so that the automatic feeding and discharging system has great potential safety hazards.

The application number is 201420362301.4 patent discloses unloading feed bin control system on lathe, including the controller, be used for detecting the proximity switch I that sets up the position state of the state pointer on work piece tray, be used for detecting whether work piece tray gets into the work piece and snatchs regional proximity switch II, be used for detecting whether work piece tray can reach the work piece and snatch proximity switch III of position, snatch the position with the work piece and correspond the setting and be used for detecting whether the reflection switch of clamping work piece on the work piece tray and respectively with proximity switch II corresponds two baffle mechanism that sets up and be used for injecing work piece tray position with proximity switch III, baffle mechanism is including being located conveyor down or the baffle of side with be used for the drive the baffle cylinder of baffle motion, the baffle cylinder. The following problems exist for the above patents:

(1) the conveying device of the feeding and discharging bin of the machine tool is provided with workpiece trays which are in friction fit with the conveying device at intervals and used for clamping workpieces, the workpiece trays are placed on the conveying rails and move forwards by means of friction, the workpiece trays and the conveying device are not fixedly connected, certain friction loss is caused in the conveying process of the workpiece trays, the service life of parts is shortened, the precision is reduced, and in addition, the starting and stopping processes have relative displacement due to inertia.

(2) Workpiece tray and be used for the location to open and stop used a plurality of sensors, though can realize the location of tray to a certain extent, under the quantity that does not reduce the tray, realize snatching position tray and other position trays and do not collide, but its structure is more complicated leads to manufacturing cost to rise, and increases the feed time of feed bin, and work efficiency receives the influence.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a single-machine truss integrated stacker which is characterized in that a conveying device is used for conveying blanks in a tray to an upper material level, a transfer device is used for grabbing and placing a transfer station, a machine tool clamping jaw is used for grabbing a machine tool clamping jaw, then a machine tool clamping jaw is used for placing processed workpieces to the transfer station, a loading station is used for grabbing to a blanking station, and the transfer work of loading and unloading machines is completed. The problem of the lathe clamping jaw because of size restriction, the shape journey is not enough can't snatch the work piece of the material loading position in the windrow machine is solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a single-machine truss integrated stacker comprises a rack and a horizontal annular conveying device installed on the rack, wherein stand columns are arranged above one end of the conveying device at intervals, and a cross beam is spanned between the stand columns; a transfer device is arranged above the conveying device and matched with the feeding station and the discharging station, the transfer device is arranged on the rack, and a transfer station is arranged below the transfer device; the transfer station, the feeding station and the discharging station are arranged side by side; the conveying device is characterized in that a plurality of supporting plates are uniformly distributed on the annular track, and a tray is placed on each supporting plate; the rack is provided with a horizontal connecting plate between the conveying device and the feeding device, the feeding device and the discharging device are arranged on the bottom surface of the connecting plate, and the connecting plate is provided with a through hole matched with a jacking rod of the feeding device and the discharging device; the trays in the conveying device are correspondingly matched with the feeding device, and the adjacent trays are correspondingly matched with the discharging device; and a control device is arranged below the conveying device, and the control device is electrically connected with the feeding device, the discharging device and the transfer device.

Furthermore, guide strips are arranged on the annular rails on two sides of the running of the supporting plate, and a detection assembly is arranged on the inner side of the rail.

Furthermore, the detection assembly comprises a detection switch and a variable-frequency speed reduction sensor, and one end of the supporting plate is provided with a notch.

Furthermore, the transfer device is also provided with a horizontal moving assembly, a vertical moving assembly and a clamping assembly, and the horizontal moving assembly is connected with the support beam; the vertical moving assembly is connected with the horizontal moving assembly; the clamping assembly is connected with the vertical moving assembly.

Furthermore, the horizontal moving assembly comprises a horizontal electric cylinder and an electric cylinder connecting plate, the vertical moving assembly comprises a vertical electric cylinder and an intermediate connecting mechanism, the clamping assembly comprises an air cylinder, an air cylinder mounting plate and a clamping jaw, the horizontal electric cylinder stretches across the upper material loading position and the lower material loading position and is fixedly mounted on the side surface of the support beam, one side of the electric cylinder connecting plate is connected with the side surface of the horizontal electric cylinder, which is far away from the support beam, the other side of the electric cylinder connecting plate is fixedly connected with the vertical electric cylinder, and the intermediate connecting mechanism is mounted at one end of an output shaft of the vertical electric cylinder; the cylinder mounting panel one side with intermediate junction mechanism connects, and the another side is installed the cylinder, the clamping jaw is installed cylinder action end.

Furthermore, the middle connecting structure comprises a bearing, a guide shaft and a floating connector, the bearing is fixed on two sides of the vertical electric cylinder output shaft, the guide shaft is fixed on one surface, far away from the air cylinder, of the air cylinder connecting plate and embedded into the bearing, one end of the floating connector is connected with the vertical electric cylinder output shaft, and the other end of the floating connector is fixed on the other surface of the air cylinder connecting plate.

Furthermore, the single-machine truss integrated stacker further comprises a protective housing, wherein the housing is provided with an observation window in an observation area, and a grating is arranged at a position for taking and placing a workpiece.

Further, the conveying device is provided with at least one tray which is empty.

According to the technical scheme, the single-machine truss integrated stacker comprises a conveying device, a feeding device, a discharging device and a transfer device, can integrate conveying, feeding, discharging and transferring, is compact in structure and comprehensive in function, and can be used for reducing matching difficulty and improving precision by integrating a plurality of devices. The transfer device horizontally and vertically moves on the rack to grab the workpiece and the blank to be machined, so that the defect that the workpiece in the stacker cannot be directly grabbed due to the stroke problem of the machine tool clamping jaw is overcome, the structure is simple, debugging and installation are facilitated, the working beat is few, and the efficiency is higher. And the control device controls the heights of the feeding device and the discharging device through programs, so that the clamping jaws of the transfer device can grab and place workpieces at the same height, the walking paths are reduced, and the program control is simplified. The guide strips arranged on the two sides of the supporting plate can correct the running track of the tray, so that the positioning precision of the workpiece is improved, the detection switch is placed through the positioning of the opening of the detecting supporting plate, the detection mode is further simplified, and the positioning precision is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a single-machine truss integrated stacker;

FIG. 2 is a partial structural schematic view of a single-machine truss integrated stacker;

FIG. 3 is a schematic axial view of a part of a single truss integrated stacker;

FIG. 4 is a schematic structural view of a single truss integrated stocker conveying device;

FIG. 5 is a partial structural schematic diagram of a single truss integrated stocker conveying device;

FIG. 6 is a schematic structural view of a middle connecting mechanism of a single-machine truss integrated stacker;

FIG. 7 is a schematic structural view of a single truss integrated stacker protective housing;

in the drawings: 1-feeding station, 2-blanking station, 3-transfer station, 10-frame, 20-conveying device, 30-feeding device, 40-blanking device, 50-transfer device, 60-protective housing, 70-control device, 100-upright column, 110-cross beam, 120-connecting plate, 130-supporting frame, 140-bracket, 150-exchange tool, 210-supporting plate, 220-tray, 230-guide bar, 240-frequency-conversion speed-reduction sensor, 250-in-place detection switch, 310-feeding jacking machine, 320-feeding low detection switch, 330-feeding high detection switch, 410-blanking jacking machine, 420-blanking low detection switch, 430-blanking high detection switch, 500-horizontal electric cylinder, 510-electric cylinder connecting plate, 520-vertical electric cylinder, 530-middle connecting mechanism, 540-air cylinder, 550-air cylinder mounting plate, 560-clamping jaw, 531-bearing, 532-guide shaft, 533-floating joint, 600-organic glass, 610-grating and 620-water-receiving plate.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments. As used herein, the term "secured" may be mounted, welded, riveted, etc., and the term "connected" may be directly connected, indirectly connected, and the like for the purpose of illustrating the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, the single-machine truss integrated stacker comprises a rack and a horizontal annular conveying device installed on the rack, wherein stand columns are arranged above one end of the conveying device at intervals, and a cross beam is spanned between the stand columns; a transfer device is arranged above the conveying device and matched with the feeding station and the discharging station, the transfer device is arranged on the rack, and a transfer station is arranged below the transfer device; the transfer station, the feeding station and the discharging station are arranged side by side; the conveying device is characterized in that a plurality of supporting plates are uniformly distributed on the annular track, and a tray is placed on each supporting plate; the rack is provided with a horizontal connecting plate between the conveying device and the feeding device, the feeding device and the discharging device are arranged on the bottom surface of the connecting plate, and the connecting plate is provided with a through hole matched with a jacking rod of the feeding device and the discharging device; the trays in the conveying device are correspondingly matched with the feeding device, and the adjacent trays are correspondingly matched with the discharging device; and a control device is arranged below the conveying device, and the control device is electrically connected with the feeding device, the discharging device and the transfer device.

The loading device jacks one tray of the conveying device to a loading station when working, the transfer device grabs a blank workpiece of the loading station to the transfer station, and a standby bed is placed on the processed workpiece after being grabbed by the clamping jaws; the blanking device jacks a tray adjacent to the feeding station to a blanking area in a working mode, and the loading device grabs a processed workpiece of the transfer station and places the processed workpiece on the tray of the blanking station.

Through loading transfer device on loading attachment and unloader, solve the limited stroke of lathe clamping jaw size and can't directly snatch the work piece problem of windrow material loading station in the windrow, reduce cost just reduces the space. The transfer device and the feeding and discharging device are arranged in the same row, so that the path can be reduced, and the working beat is improved.

The single-machine truss integrated stocker is described below with reference to specific embodiments to further understand the inventive concept of the single-machine truss integrated stocker.

Referring to fig. 1 and 2, the single truss integrated stacker includes a frame 10 and a horizontal ring conveyor 20 mounted on the frame, the frame is provided with two vertical columns 100 at an interval above one end of the conveyor, a cross beam 110 is spanned between the top ends of the vertical columns, the lower ends of the vertical columns are horizontally connected with a connecting plate 120, and the bottom of the connecting plate is provided with a support 130. And a feeding device 30 and a discharging device 40 are arranged below one end, matched with the cross beam, of the conveying device side by side, the upper side of the feeding device corresponds to a feeding station, and the upper side of the discharging device corresponds to a discharging station. Further, the feeding device and the discharging device can lift the tray 220 corresponding to the conveying device 20 through the connection 120. A transfer device 50 is arranged above the conveying device and matched with the feeding station and the discharging station, the transfer device is arranged on the rack, and a transfer station is arranged below the transfer device; the transfer station, the feeding station and the discharging station are arranged side by side. And a control device 70 is arranged below the discharging area of the conveying device, and the control device is electrically connected with the feeding device, the discharging device and the transfer device. The control device can control the actions of all the electric elements in the stacker.

Referring to fig. 3 and 4, the conveyor 20 is driven by a rotating motor to move a conveyor chain 200 along an endless track above the illustrated support 130. The conveying device 20 is characterized in that a plurality of supporting plates 210 are uniformly distributed on the annular track, a tray 220 is placed on each supporting plate, a plurality of workpieces are stacked on the trays, and it should be noted that at least one tray is empty, no workpiece is arranged on the tray, and adjacent trays of the empty trays cannot be empty. Specifically, the layer board is connected with the conveying chain accessories in the conveying device, the front face of the layer board is provided with a plurality of protruding parts, the tray is arranged in a groove or a notch matched with the protruding parts, and the tray is placed on the tray and is relatively fixed in the front, back, left and right positions. The front surface of the tray is provided with a vertical rod and a positioning block which are matched with the appearance of the workpiece, so that the periphery of the workpiece can be conveniently positioned. The guide strips 230 are arranged on two sides of the moving track of the supporting plate, so that the deviation of the supporting plate in the moving process is corrected, the moving track of a workpiece is more accurate, and later-stage accurate positioning is facilitated. The guide strips are made of non-metal materials, such as polytetrafluoroethylene, nylon and the like, and the purpose is to reduce the abrasion of the supporting plate in the operation process. Further, a supporting plate in-place detection switch 250 is arranged on the inner side of the annular slide way, so as to detect the in-place situation of the supporting plate. In one embodiment, a gap is formed on one side of the supporting plate matched with the detection switch, and one side plate of the gap corresponds to the detection switch; the front end of the pallet running direction is provided with a variable frequency speed reducing sensor 240, when the pallet is about to reach a designated position, the variable frequency speed reducing sensor 240 detects the pallet, then sends a signal to a control device, the control device controls the conveying chain and the pallet to reduce speed, and when a detection switch 250 detects a gap side plate of the pallet, the conveying chain is indicated to reach the designated position, and then the conveying chain stops. The detection switch is through detecting the curb plate of layer board opening, has so both avoided adopting the tradition to detect the piece and appear crooked problem that causes the false detection or detect the precision and reduce, has simplified the structure again. The variable-frequency speed reduction sensor is arranged in front of the supporting plate, so that the movement speed of the supporting plate can be reduced in advance, the supporting plate can be accurately positioned when in place, and the reduction of the positioning precision of the supporting plate due to inertia can be avoided. The annular slide way of the whole conveying device is internally provided with a positioning detector which can detect a plurality of supporting plates, so that the control program is simple, the installation and debugging process is reduced, and the cost is reduced. The detection switch 250 may be a proximity switch that signals by sensing the distance from the pallet opening side plate.

Referring to fig. 5, the feeding device 30 includes a feeding jack 310, a feeding low-level detection switch 320; the feeding high-level detection switch 330, the blanking device 40 includes a blanking jacking machine 410, a blanking low-level detection switch 420, and a blanking high-level detection switch 430. The detection switches are respectively installed on shafts vertically fixed on the connecting plate 120, the height of the low detection switch is matched with the bottommost workpiece of the tray, and the height of the high detection switch is matched with the topmost workpiece of the tray. Specifically, the feeding high-level detection switch confirms that the feeding jacking machine jacks a workpiece to a feeding grabbing position, and outputs a signal to the control device; the feeding low-level detection switch confirms whether at least one workpiece exists in the feeding station of the tray after the supporting plate 210 is confirmed to reach the designated position; the blanking high-position detection switch is used for confirming that the blanking jacking machine jacks the tray 220 to a blanking position (the highest position of the blanking tray), and transmitting a signal to the control device; the blanking low-level detection switch confirms that the tray has no workpiece at the blanking station after the tray 210 is confirmed to reach the designated position. The conveyor 20 is in operation when one of the trays without work pieces matches the blanking station and the adjacent one matches the loading station. The loading jacking machine and the unloading jacking machine are respectively arranged on the bottom surface of the connecting plate 120, and through holes are arranged at the positions matched with the jacking rods of the loading jacking machine and the unloading jacking machine, so that the tray can be jacked conveniently. Further, a support 140 is arranged on the connecting plate 120 at the position matched with the transfer station, and an exchange tool 150 is arranged on the support and used for receiving and placing a workpiece machined by the machine tool and a blank clamped by the clamping jaw. It should be noted that the height of the exchange tool is matched with the position of the feeding height detection switch, so that the walking path of the clamping jaw is reduced, the working beat is accelerated, and the working efficiency is improved.

Referring to fig. 5 again, the transfer device 50 is provided with a horizontal moving assembly, a vertical moving assembly and a clamping assembly, and the horizontal moving assembly is connected with the beam 110; the vertical moving assembly is connected with the horizontal moving assembly; the clamping assembly is connected with the vertical moving assembly. Further, the horizontal moving assembly comprises a horizontal electric cylinder 500 and an electric cylinder connecting plate 510, the vertical moving assembly comprises a vertical electric cylinder 520 and an intermediate connecting mechanism 530, and the clamping assembly comprises an air cylinder 540, an air cylinder mounting plate 550 and a clamping jaw 560. The horizontal electric cylinder crosses over the feeding position and the discharging position and is fixedly arranged on the side surface of the bracket beam 110, one side of the electric cylinder connecting plate 510 is connected with the side surface of the horizontal electric cylinder far away from the bracket beam, the other side of the electric cylinder connecting plate is fixedly connected with the vertical electric cylinder 520, and the middle connecting structure 530 is arranged on one side of the output shaft of the vertical electric cylinder; the cylinder mounting plate 550 is connected to the intermediate connection mechanism on one side and the cylinder 540 on the other side, and the clamping jaw 550 is mounted at the other end of the cylinder, i.e., the actuating end. Optimally, the number of the clamping jaws is 3, the clamping jaws are uniformly distributed on the cylinder to form a shape matched with the appearance of a workpiece, and the clamping direction of each clamping jaw is arranged towards the axis of the cylinder.

Further, referring to fig. 6, the intermediate connection structure includes a bearing 531, a guiding shaft 532, and a floating joint 533, wherein one end of the bearing is fixed to two sides of the output shaft of the vertical electric cylinder 520, one end of the guiding shaft 532 is fixed to a surface of the cylinder mounting plate 550 away from the cylinder, the other end of the guiding shaft is embedded into the other end of the bearing, one end of the floating joint 533 is connected to the output shaft of the vertical electric cylinder, and the other end of the floating joint is fixedly connected to a surface of the cylinder connecting plate away from the cylinder. Therefore, the vertical electric cylinder is limited by the guide shafts on the two sides and the bearing when in work, the rotation phenomenon can not occur, and the cylinder and the clamping jaw connected with the vertical electric cylinder also avoid the grabbing deviation generated by rotation. It should be noted that the bearings may be linear bearings, and the number of bearings and guide shafts is preferably two.

Referring to fig. 1-5, the specific operation is as follows: firstly, all the pallets 220 on the conveying device are filled with blanks, a plurality of workpieces can be placed on each pallet according to actual needs to be stacked, and an empty pallet needs to be left. Then, the conveying device is started to rotate anticlockwise, and when the detection switch 250 detects that the side plate of the opening of the supporting plate 210 and the blanking low-level detection switch 420 detect that the tray is empty (no blank is detected), and the feeding low-level detection switch 320 detects that the workpiece is arranged on the feeding level tray, the conveying device stops rotating. In order to improve the efficiency of the stacker and ensure the smooth and optimal working process, the three detection switches are required to simultaneously detect and send signals, and then the conveying device stops. The space-time tray corresponds to the blanking station, and the tray filled with the blank piece adjacent to the space-time tray corresponds to the feeding station. The control device sends an instruction, the material loading jacking machine 310 performs upward jacking action, the tray and blanks on the tray are jacked, when the blank is detected by the material loading high-level detection switch 330, the material loading jacking machine stops acting, then the vertical moving assembly moves to a material loading station in a horizontal electric cylinder 500 driving mode, the vertical electric cylinder 540 drives to descend, the clamping jaw 580 is opened in the work of the air cylinder 560 to grab the blank, the grabbing rear air cylinder shrinks and the clamping jaw is clamped tightly, then the vertical electric cylinder rises to a certain distance, and then the vertical electric cylinder moves to a transfer station. A detection switch is installed outside the exchange tool 150, and the switch mainly detects whether a workpiece exists in the exchange tool. When no workpiece is detected in the exchange tool, the vertical cylinder descends to place the blank into the exchange tool, and the clamping jaw returns to the position to wait for the clamping jaw of the machine tool to grab. At this time, the discharging jack 410 works to jack the empty tray to the highest position (the position is consistent with the position of the workpiece at the bottommost layer of the tray detected by the discharging high detection switch). After the machine tool is machined, a machined workpiece (hereinafter, the machined workpiece is collectively called as a machined workpiece) is placed into the exchange tool through a clamping jaw of the machine tool, then the vertical air cylinder descends to clamp the machined workpiece, the machined workpiece is driven by the vertical electric cylinder and the horizontal electric cylinder to move to the position above a tray of a blanking station, then the clamping jaw is loosened to place the machined workpiece into the tray, and then a blanking lifter descends by the height of one workpiece to complete first feeding and blanking work.

And then, the feeding jacking machine is lifted again until the blank is detected by the feeding high-position detection switch and stops, the clamping jaw moves from the blanking station to the feeding station to grab the blank in the tray, the blank is moved into the exchange tool, the machine tool takes away the blank and then puts the blank into a machined part, then the clamping jaw grabs the machined part, and the second machined part is put into the tray after moving to the blanking station. And repeating the working process. When the feeding high-position detection switch cannot detect the blank, the tray corresponding to the feeding device is empty, and after the clamping jaw finishes blanking, the control device controls the feeding lifter to descend to the lowest position, namely the tray descends to the initial height. When the blanking low detection switch 420 detects a workpiece, it indicates that the corresponding tray of the blanking device is full and returns to the starting position. At the moment, the conveying device rotates, when the variable-frequency speed reduction sensor detects the running supporting plate, the speed of the conveying device is reduced, and the conveying device stops until the detection switch 250 detects the side plate of the opening of the supporting plate and the feeding low-level detection switch and the discharging low-level detection switch simultaneously meet the detection conditions. Note that if only one empty tray is reserved in the beginning of work of the conveying device, only the in-place condition of the tray can be detected at the moment, so that the working efficiency is improved, and the control program is simplified. At this time, the empty tray in the previous process is transferred to a blanking station, and the tray filled with the blank piece is transferred to an feeding station. The above-described operation is then repeated. It should be noted that, because the stacking blanks on the tray are the same product, the feeding elevator can be controlled by the control device to ascend the same distance each time when feeding. The use of sensing devices and the transmission control between signals are reduced.

In the process, the clamping jaws are consistent in height for grabbing the blank and placing the workpiece each time, the repeatability is strong, and the difficulty of a control program can be reduced; the feeding device, the discharging device and the transfer device are arranged in the same row, and the movement path of the clamping jaw is shortened. The feeding lifter can ascend for the same distance every time according to the height of the workpiece without returning to the initial position to ascend, and the action process is simplified. And through the horizontal and vertical removal of transfer device, grab the blank and put on the exchange frock from the tray and supply the lathe to press from both sides and get, solved the defect that lathe annular clamping jaw can't directly snatch the inside feeding station blank work piece of stacker. And the guide of the supporting plate guide strip and the detection mode of the opening side plate improve the positioning precision of the workpiece in the tray, and are more favorable for smoothly grabbing the clamping jaw.

Referring to fig. 7, in order to improve the safety and the aesthetic property of the single truss integrated stocker, the stacker further includes a protective housing 60, which protects the peripheries of the conveying device, the feeding device, the discharging device and the transfer device in the stocker, and the protective enclosing plates are formed and fixed on the support 130. The top and the side of the housing are provided with notches, so that the workpiece can be conveniently grabbed and placed. And be equipped with the observation area on bounding wall all around, install organic glass 600 on the observation area, make things convenient for operating personnel to observe the behavior of equipment. Install grating 610 in conveyor blowing regional both sides, when operating personnel blowing or simple and easy maintenance, when needing to get into the conveyor scope, the foreign object can be sensed to the grating, and equipment can be shut down, treats that the grating response can not arrive, the automatic recovery action. The support below conveyor is provided with a water receiving tray 620, cutting fluid brought out by a machined part placed on the tray can be received, the water receiving tray is obliquely arranged, a water outlet is formed in the lowest end of the water receiving tray, and the received cutting fluid is processed in a centralized mode at any time. Adopt protective housing, on the one hand safe pleasing to the eye, on the other hand can keep unanimous with supporting lathe outward appearance, and is more harmonious, and the setting of water collector is more favorable to improving the mill environment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. A single-machine truss integrated stacker comprises a rack and a horizontal annular conveying device installed on the rack, wherein stand columns are arranged above one end of the conveying device at intervals, and a cross beam is spanned between the stand columns;

a transfer device is arranged above the conveying device and matched with the feeding station and the discharging station, the transfer device is arranged on the rack, and a transfer station is arranged below the transfer device; the transfer station, the feeding station and the discharging station are arranged side by side;

the conveying device is characterized in that a plurality of supporting plates are uniformly distributed on the annular track, and a tray is placed on each supporting plate; the rack is provided with a horizontal connecting plate between the conveying device and the feeding device, the feeding device and the discharging device are arranged on the bottom surface of the connecting plate, and the connecting plate is provided with a through hole matched with a jacking rod of the feeding device and the discharging device; the trays in the conveying device are correspondingly matched with the feeding device, and the adjacent trays are correspondingly matched with the discharging device;

and a control device is arranged below the conveying device, and the control device is electrically connected with the feeding device, the discharging device and the transfer device.

2. The single-machine truss integrated stocker of claim 1, wherein the circular rails on both sides of the pallet run are provided with guide bars, and the detection assembly is arranged inside the rails.

3. The single-machine truss integrated stacker according to any one of claims 1 or 2, wherein the detection assembly comprises a detection switch and a variable-frequency speed reduction sensor, a notch is formed in one end of the supporting plate, and the notch is matched with one side of the detection switch after installation.

4. The single-machine truss integrated stacker as claimed in claim 1, wherein the transfer device is further provided with a horizontal moving assembly, a vertical moving assembly and a clamping assembly, and the horizontal moving assembly is connected with the support beam; the vertical moving assembly is connected with the horizontal moving assembly; the clamping assembly is connected with the vertical moving assembly.

5. The single-machine truss integrated stacker according to claim 3, wherein the horizontal moving assembly comprises a horizontal electric cylinder and an electric cylinder connecting plate, the vertical moving assembly comprises a vertical electric cylinder and an intermediate connecting mechanism, the clamping assembly comprises an air cylinder, an air cylinder mounting plate and a clamping jaw, the horizontal electric cylinder spans over the loading position and the unloading position and is fixedly mounted on the side surface of the support cross beam, one side of the electric cylinder connecting plate is connected with the side surface of the horizontal electric cylinder, which is far away from the support cross beam, the other side of the electric cylinder connecting plate is fixedly connected with the vertical electric cylinder, and the intermediate connecting mechanism is mounted at one end of an output shaft of the vertical electric cylinder; the cylinder mounting panel one side with intermediate junction mechanism connects, and the another side is installed the cylinder, the clamping jaw is installed cylinder action end.

6. The single-machine truss integrated stacker according to claim 4, wherein the intermediate connection structure comprises bearings, guide shafts and floating joints, the bearings are fixed on two sides of the output shaft of the vertical electric cylinder, the guide shafts are fixed on one surface, far away from the air cylinder, of the air cylinder connecting plate and embedded in the bearings, one end of each floating joint is connected with the output shaft of the vertical electric cylinder, and the other end of each floating joint is fixed on the other surface of the air cylinder connecting plate.

7. The stand-alone truss integrated stocker of claim 1, further comprising a protective enclosure, wherein said enclosure has a viewing window at the viewing area and a grating at the location of picking and placing the workpiece.

8. The stand-alone truss integrated stocker of any one of claims 1 to 7, wherein at least one tray of said transport device is empty.

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