Roller automatic feeding and discharging buffer device

Abstract

The application provides a kind of roll automatic feeding and discharging buffer device, comprising: base and support frame vertically installed on base, support frame is equipped with buffer frame, multiple process frames are installed in buffer frame, lifting drive mechanism is installed on buffer frame, horizontal movement sliding rail is installed on the front side of buffer frame, horizontal movement sliding block is equipped on horizontal movement sliding rail, horizontal movement sliding block is installed with translation drive mechanism, lever is installed below horizontal movement sliding block, operation station and conveying assembly line are respectively arranged on the left and right sides below horizontal movement sliding rail.The feeding and discharging buffer operation of workpiece is carried out by one of the process frames of the application when it is connected to the operation station with the translation drive mechanism, the floor space is small, the mixed buffer can be used, when one end of the process frame is connected to the operation station, the other end of the process frame is connected to the conveying assembly line, the workpiece conveying operation can also be carried out to the conveying assembly line when feeding and discharging buffer is carried out.

Description

Technical Field

[0001] This invention relates to the field of roller processing equipment, and more particularly to an automatic roller loading and unloading buffer device. Background Technology

[0002] Bearing rollers are important components of bearings. Due to the wide variety of bearing types, bearing rollers come in numerous types and sizes, with a large range of specifications and dimensions. Currently, due to the large number of roller sizes and specifications, it is impossible to set up buffers. The only way to achieve a buffering effect is to extend the production line, which involves large investment, large floor space, and inconvenient operation. The inability to buffer rollers greatly limits intelligent manufacturing, which still relies on manual labor to load and unload workpieces. Conventional buffers are large in size, complex in structure, and inconvenient to use. Conventional buffers can only be produced on separate production lines according to specifications and cannot be mixed with other specifications. Summary of the Invention

[0003] To address the problems in the background art, the present invention provides an automatic roller loading and unloading buffer device, comprising: a base and a support frame vertically mounted on the base, a buffer frame provided on the support frame, multiple process frames installed in the buffer frame, a lifting drive mechanism installed on the buffer frame, the multiple process frames being connected to the lifting mechanism, a horizontal moving slide rail installed on the front side of the buffer frame, a horizontal moving slider provided on the horizontal moving slide rail, a translation drive mechanism installed on the horizontal moving slider, a lever installed below the horizontal moving slider, and operating stations and conveyor lines respectively provided on the left and right sides below the horizontal moving slide rail.

[0004] As a preferred embodiment of the present invention, the lifting mechanism includes: a lifting servo motor and a planetary reducer. A vertical slide rail is provided on the back of the buffer frame, and a lifting slider is installed in the vertical slide rail. Multiple process frames are connected to the front side of the lifting slider. A vertically penetrating internal threaded hole is opened in the lifting slider, and a ball screw is installed in the internal threaded hole. The top end of the ball screw is connected to the lifting servo motor through the planetary reducer.

[0005] As a preferred embodiment of the present invention, the lifting mechanism is further provided with an upper limit switch, a lower limit switch, and a start origin switch. This can greatly improve the accuracy of the movement and reduce cumulative errors.

[0006] In a preferred embodiment of the present invention, a weight sensor is installed on the operating station, and a vision system and a laser ranging system are provided on the buffer frame above the operating station. The weight sensor, lifting mechanism, translation drive mechanism, vision system, and laser ranging system are all connected to the PLC control system. This allows the system to systematically identify the size and weight of the workpiece, and automatically identify the larger and smaller ends of the conical workpiece, verifying the correctness of the larger and smaller ends during the feeding process, avoiding collision losses, and providing timely alarms and adjustments.

[0007] In a preferred embodiment of the present invention, the conveyor line and the process rack are connected by a connecting transition plate.

[0008] As a preferred embodiment of the present invention, the PLC control system performs the loading and unloading mixing operation according to the following method: S1: The PLC control system receives loading / unloading buffer requests; (The operator sends loading / unloading buffer requests to the PLC control system via the loading and unloading buffer buttons) S2: The PLC control system controls the lifting mechanism to move the process rack that meets the requirements between the operating station and the conveyor line; S3: The operator performs loading and unloading operations at the workstation; S4: The PLC control system controls the translation drive mechanism to move the roller workpiece into or out of the process rack.

[0009] As a preferred embodiment of the present invention, during the loading and buffering process, in step S4, the translation drive mechanism drives the lever to push the workpieces forward one by one. After a layer is filled, the lever is withdrawn to the starting position (to avoid interference with lifting and lowering). The PLC control system controls the lifting mechanism to adjust the layer that needs to be loaded to the operating station and the conveyor line, and continues loading.

[0010] As a preferred embodiment of the present invention, during the buffer loading process, when the conveyor line needs to be loaded, the PLC control system determines the distance that the lever needs to be pushed forward based on the number of workpieces already completed in this layer, directly pushing the workpieces already loaded in this layer forward until a workpiece enters the conveyor line.

[0011] As a preferred embodiment of the present invention, during buffer unloading, in step S4, the translation drive mechanism drives the lever to push the workpieces in the buffer forward one by one from the end away from the operating station. The operator removes the workpieces one by one from the operating station. After one layer is unloaded, the lever returns to the starting position. The PLC control system controls the lifting mechanism to adjust the layer to be unloaded between the operating station and the conveyor line, and the unloading continues.

[0012] As a preferred embodiment of the present invention, during the buffer unloading process, when the conveyor line needs to unload, the lever retracts and pulls up, then returns to the outside of the workpiece at the end of the conveyor line. The lever is pushed out to the working position, and the PLC control system calculates the need to unload the workpieces on the process rack according to the already unloaded workpieces and directly moves them to the corresponding distance to continue unloading one by one.

[0013] Compared with the prior art, the present invention provides an automatic roller loading and unloading buffer device, which has the following beneficial effects: 1. The present invention sets a process rack on the mounting frame, sets multiple process racks on the process rack and moves the process racks up and down through a lifting mechanism, and when one of the process racks is connected to the operating station, it cooperates with the translation drive mechanism to perform workpiece loading and unloading buffering operations.

[0014] 2. When one end of the process rack of the present invention is connected to the operating station, the other end of the process rack is connected to the conveyor line. During loading and unloading buffering, the workpiece can be conveyed to the conveyor line.

[0015] 3. The buffer device of the present invention has a small footprint, intelligent control, and simple operation; it can buffer different specifications and sizes, and can accommodate a large number of workpieces; it can select specific specifications and sizes for output as needed; the workpiece conveyor can automatically connect with any processing equipment through the conveyor, and automatically load and unload materials without manual operation.

[0016] 4. This invention is equipped with a distance measuring sensor, which can automatically identify the large and small ends of a conical workpiece and also check the correctness of manual loading. An alarm will be issued if the large and small ends are not in the correct direction. A servo lever mechanism is also provided, which can automatically perform up and down buffering operations on the workpiece based on the contour data provided by the vision system. Attached Figure Description

[0017] Figure 1 This is a front view of an automatic roller loading and unloading buffer device.

[0018] Figure 2 This is a side view of an automatic roller loading and unloading buffer device.

[0019] Figure 3 This is a three-dimensional structural diagram of an automatic roller loading and unloading buffer device.

[0020] The components are: 1-base; 2-support frame; 3-buffer frame; 4-process frame; 401-V-shaped bracket; 5-lifting servo motor; 6-planetary reducer; 7-horizontal moving slide rail; 8-horizontal moving slider; 9-lever; 10-operating station; 11-conveyor line; 12-connecting transition plate; 13-weight sensor; 14-vision system; 15-laser ranging system. Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] like Figure 1-3 As shown, this invention provides an automatic roller loading and unloading buffer device, comprising: a base 1 and a support frame 2 vertically mounted on the base 1. A buffer frame 3 is provided on the support frame 2, and multiple process frames 4 are installed within the buffer frame 3. A lifting drive mechanism is installed on the buffer frame 3, and the multiple process frames 4 are all connected to the lifting mechanism. The lifting mechanism includes: a lifting servo motor 5 and a planetary reducer 6. A vertical slide rail is provided on the back of the buffer frame 3, and a lifting slider is installed within the vertical slide rail. The multiple process frames 4 are all connected to the front side of the lifting slider. A vertically penetrating internal threaded hole is opened within the lifting slider, and a ball screw is fitted into the internal threaded hole. The top end of the ball screw is connected to the lifting servo motor 5 through the planetary reducer 6. The lifting mechanism also includes an upper limit switch, a lower limit switch, and a start origin switch. This device can greatly improve motion accuracy and reduce cumulative errors. A horizontal moving slide rail 7 is installed on the front side of the buffer box 3. A horizontal moving slider 8 is equipped on the horizontal moving slide rail 7. A translation drive mechanism is installed on the horizontal moving slider 8. A lever 9 is installed below the horizontal moving slider 8. The lever 9 is installed below the horizontal moving slider 8 by a cylinder. An operating station 10 and a conveyor line 11 are respectively provided on the left and right sides below the horizontal moving slide rail 7. The conveyor line 11 can be operated accordingly when loading and unloading buffers.

[0024] To facilitate automated buffering operations, this invention includes a weight sensor 13 installed on the operating station 10. A vision system 14 and a laser ranging system 15 are mounted on the buffer frame 3 above the operating station 10. The weight sensor, lifting mechanism, translation drive mechanism, vision system, and laser ranging system are all connected to a PLC control system. This allows the system to systematically identify the size and weight of the workpiece, automatically identify the larger and smaller ends of the conical workpiece, verify the correctness of the larger and smaller ends during the feeding process, avoid collision damage, and provide timely alarms and adjustments.

[0025] To facilitate flexible docking between the process frame 4 and the conveyor line 11, the conveyor line 11 and the process frame 4 are connected by a connecting transition plate 12.

[0026] The automatic roller loading and unloading buffer device of the present invention is automatically controlled by a PLC control system, and specifically performs the loading and unloading mixed operation according to the following method: S1: The PLC control system receives loading / unloading buffer requests; (The operator sends loading / unloading buffer requests to the PLC control system via the loading and unloading buffer buttons) S2: The PLC control system controls the lifting mechanism to move the process rack 4 that meets the requirements to the operating station 10 and the conveyor line 11. S3: The operator performs loading and unloading operations at the workstation; S4: The PLC control system controls the translation drive mechanism to move the roller workpiece into or out of the process rack 4.

[0027] During the loading and buffering process, in step S4, the translation drive mechanism drives the lever 9 to push the workpieces forward one by one. After a layer is filled, the lever 9 retracts to the starting position (to avoid interference with lifting). The PLC control system controls the lifting mechanism to adjust the layer that needs to be loaded to between the operating station 10 and the conveyor line 11, and continues loading. During the buffering and loading process, when the conveyor line 11 needs to be loaded, the PLC control system gives the distance that the lever 9 needs to advance based on the number of workpieces that have been completed in this layer, and directly pushes the workpieces that have been loaded in this layer forward until a workpiece enters the conveyor line 11.

[0028] During buffer unloading, in step S4, the translation drive mechanism drives the lever 9 to push the buffered workpieces forward one by one from the end away from the operating station 10. The operator removes the workpieces one by one from the operating station 10. After one layer is unloaded, the lever 9 retracts to the starting position. The PLC control system controls the lifting mechanism to adjust the layer that needs to be unloaded to the area between the operating station 10 and the conveyor line 11, and unloading continues. During the buffer unloading process, when the conveyor line 11 needs to unload, the cylinder retracts and pulls the lever 9 up, and then it retracts to the outside of the workpiece at the end of the conveyor line 11. The lever 9 is pushed out to the working position. The PLC control system calculates the workpieces that need to be unloaded on the process rack 4 according to the workpieces that have already been unloaded, and directly moves them to the corresponding distance, and unloading continues one by one.

[0029] During material loading and buffering The feeding buffer can be adjusted as needed. Except when the buffer is moving up or down, before feeding, the feeding request button needs to be pressed manually to notify the PLC control system. At this time, the buffer cannot move up or down. When the PLC control system receives a loading request, it will confirm the request. If there are no workpieces in the buffer at this time (this is considered an operational negligence and a loading delay, which should not exist in general), the lifting mechanism does not need to be activated, and loading can proceed directly. The workers will manually place the workpieces one by one onto the operating station 10. The weight sensor 13 will detect the weight of the workpieces. When the weight of the workpiece is large, the translation drive mechanism will drive the lever 9 to directly move the newly loaded workpiece to the far right of the flow rack 4, prioritizing ensuring that the flow rack 4 does not stop flowing. If the flow rack 4 has stopped flowing, a workpiece can also be manually placed directly onto the flow rack 4. When the weight of the workpiece is small, the lever 9 can be omitted, and the workpieces can be pushed forward one by one by hand. Normally, the material should be fed forward one by one. After a layer is full, the lever 9 is returned to the starting position (to avoid interference with lifting). The PLC control system will adjust the process rack 4 that needs to be fed to the feeding position and continue feeding. During the buffer feeding process, if the process rack 4 needs to be fed, the PLC control system will give the lever 9 the distance to be pushed forward based on the number of workpieces that have been completed in this layer. The workpieces that have been fed in this layer can be pushed forward directly until a workpiece enters the process rack.

[0030] During material feeding buffer The unloading buffer and the loading buffer have similar structures and functions, only the loading and unloading directions are different.

[0031] The unloading buffer can be activated at any time as needed, except when the buffer is moving up and down. Before unloading, the loading request button needs to be pressed manually to notify the PLC control system. At this time, the buffer lifting and lowering cannot be activated. Upon receiving the unloading request, the PLC control system will confirm the request. If there is no workpiece at the current position of the process rack 4, the PLC control system will determine whether to wait for the workpiece on the process rack 4 to arrive and then remove it, or directly lift and lower the layer full of workpieces to the unloading position, based on the arrival time of the next workpiece on the process rack 4. The workpieces are moved one by one from the unloading buffer by the translation drive mechanism driving the lever 9. Move to operating station 10, and manually remove the workpieces one by one from operating station 10; normal feeding should be one on top of the other and move forward. After feeding one layer, the lever retracts to the starting position (to avoid interference with lifting). The PLC adjusts the layer that needs to be fed to the feeding position and continues feeding; during the buffer feeding process, if the process rack 4 needs to be fed, the lever cylinder retracts, pulls up the lever, and then returns to the starting position. The lever cylinder pushes out, and the lever reaches the working position. The PLC calculates the workpieces that need to be fed on the feeding process rack according to the already fed workpieces and directly moves the workpieces that need to be fed to the corresponding distance, and continues feeding one by one.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the invention.

Claims

1. An automatic roller loading and unloading buffer device, characterized in that, include: A base (1) and a support frame (2) vertically mounted on the base (1). A buffer frame (3) is provided on the support frame (2). Multiple process racks (4) are installed in the buffer frame (3). A lifting mechanism is installed on the buffer frame (3). Multiple process racks (4) are connected to the lifting mechanism. A horizontal moving slide rail (7) is installed on the front side of the buffer frame (3). A horizontal moving slider (8) is provided on the horizontal moving slide rail (7). A translation drive mechanism is installed on the horizontal moving slider (8). A lever (9) is installed below the horizontal moving slider (8). An operating station (10) and a conveyor line (11) are respectively provided on the left and right sides below the horizontal moving slide rail (7). The lifting mechanism includes: a lifting servo motor (5) and a planetary reducer (6). The back of the buffer frame (3) is provided with a vertical slide rail. A lifting slider is installed in the vertical slide rail. Multiple process frames (4) are connected to the front side of the lifting slider. A vertically through-hole internal thread is opened in the lifting slider. A ball screw is installed in the internal thread hole. The top of the ball screw is connected to the lifting servo motor (5) through the planetary reducer (6). A weight sensor (13) is installed on the operating station (10). A vision system (14) and a laser ranging system (15) are provided on the buffer frame (3) above the operating station (10). The weight sensor, lifting mechanism, translation drive mechanism, vision system and laser ranging system are all connected to the PLC control system. The PLC control system performs loading and unloading buffer operations as follows: S1: The PLC control system receives loading and unloading buffer requirements; S2: The PLC control system controls the lifting mechanism to move the process rack (4) that meets the requirements to the operating station (10) and the conveyor line (11); S3: The operator performs loading and unloading operations at the workstation; S4: The PLC control system controls the translation drive mechanism to move the roller workpiece into or out of the process rack (4). During the loading and buffering process, in step S4, the translation drive mechanism drives the lever (9) to push the workpieces forward one by one. After a layer is loaded, the lever (9) returns to the starting position. The PLC control system controls the lifting mechanism to adjust the layer that needs to be loaded to the operating station (10) and the conveyor line (11) to continue loading. During the buffer loading process, when the conveyor line (11) needs to be loaded, the PLC control system gives the lever (9) the distance to be pushed forward according to the number of workpieces that have been completed in this layer, and directly pushes the workpieces that have been loaded in this layer forward until a workpiece enters the conveyor line (11). During the buffer unloading process, in step S4, the translation drive mechanism drives the lever (9) to push the workpieces in the buffer forward one by one from the end away from the operating station (10). The operator removes the workpieces one by one from the operating station (10). After one layer is unloaded, the lever (9) returns to the starting position. The PLC control system controls the lifting mechanism to adjust the layer that needs to be unloaded to the area between the operating station (10) and the conveyor line (11) to continue unloading.

2. The automatic roller loading and unloading buffer device according to claim 1, characterized in that, The lifting mechanism is also equipped with an upper limit switch, a lower limit switch, and a start origin switch.

3. The automatic roller loading and unloading buffer device according to claim 1, characterized in that, The conveyor line (11) and the process rack (4) are connected by a connecting transition plate (12).

4. The automatic roller loading and unloading buffer device according to claim 1, characterized in that, During the buffer unloading process, when the conveyor line (11) needs to unload, the lever retracts and pulls up, then returns to the outside of the workpiece at the end of the conveyor line (11). The lever pushes out to the working position. The PLC control system calculates the need to directly move the workpieces that need to be unloaded on the process rack (4) to the corresponding distance based on the workpieces that have already been unloaded, and continues to unload them one by one.

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