Feeding and discharging unit of sky rail robot

Abstract

The utility model discloses a sky rail robot feeding and discharging unit which comprises a sky rail rack, a robot moving part connected to the sky rail rack in a sliding mode and a discharging part arranged below the sky rail rack, and the robot moving part comprises a moving base and a driving mechanism used for driving the moving base to move in a reciprocating mode. The joint robot and the material transfer table are arranged on the movable base, and a plurality of sets of temporary storage stations and turning stations are arranged on the material transfer table. The sky rail robot feeding and discharging unit can be transferred among different machine tools, is high in use flexibility, facilitates manual checking of the machining condition, can machine matched products at the same time, and facilitates factory production scheduling planning.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a loading and unloading unit of an overhead rail robot. Background Art

[0002] With the progress of society and the development of science, automation is being used more and more widely in various fields. In the robot automated processing unit, the robot always occupies part of the manual working area, which is quite inconvenient for manual observation of the processing situation. Moreover, the robot automated processing unit can basically only process a certain product at the same time. For some products that appear in pairs, such as nuts, bolts, various joints, etc., the production line planning of the existing robot automated processing unit will lead to large differences in the production quantity of supporting products, which is not conducive to factory production scheduling and has certain limitations. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a ceiling rail robot loading and unloading unit that can be transferred between different machine tools, has high flexibility in use, is convenient for manual inspection of processing conditions, can process supporting products at the same time, and is beneficial to factory production scheduling.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A material loading and unloading unit of an overhead rail robot comprises an overhead rail frame, a robot movable part slidably connected to the overhead rail frame, and a material unloading part arranged below the overhead rail frame, the robot movable part comprises a mobile base, a driving mechanism for driving the mobile base to reciprocate, and an articulated robot and a material transfer table arranged on the mobile base, wherein the material transfer table is provided with a plurality of groups of temporary storage stations and turning stations.

[0006] As a further improvement of the above technical solution:

[0007] The temporary storage station includes a first workpiece bottom plate arranged on the material transfer table, three groups of evenly distributed slide grooves are opened on the first workpiece bottom plate, and first limit blocks for positioning the workpiece are installed in the slide grooves.

[0008] The temporary storage station also includes a first photoelectric detection switch arranged on the material transfer table, and the first photoelectric detection switch is arranged in a one-to-one correspondence with the first workpiece bottom plate.

[0009] The turning station includes a second workpiece base plate arranged on the material transfer table, three groups of evenly distributed slide grooves are opened on the second workpiece base plate, a second limit block for positioning the workpiece is installed in the slide groove, an elastic floating mechanism is arranged between the second workpiece base plate and the material transfer table, and a pneumatic clamp and a guide rod cylinder for driving the pneumatic clamp to move back and forth are arranged above the second workpiece base plate.

[0010] The turning station further includes a second photoelectric detection switch disposed on the material transfer table, and the second photoelectric detection switch is disposed in a one-to-one correspondence with the second workpiece bottom plate.

[0011] The articulated robot is mounted on the mobile base via a right-angle reducer.

[0012] The driving mechanism comprises a rack fixedly arranged on the overhead rail frame, a driving motor fixedly arranged on the mobile base, and a driving gear arranged at the output end of the driving motor, and the driving gear is meshedly connected with the rack.

[0013] The mobile base is also provided with a grease lubrication pump for lubricating the driving gear and the rack.

[0014] The unloading part includes several groups of workpiece pallets and unloading conveying lines, and a robot control cabinet is arranged under one group of the workpiece pallets.

[0015] A plurality of groups of linearly arranged CNC machine tools are arranged below the overhead rail frame, and the unloading portion is located between two adjacent groups of the CNC machine tools.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] The overhead rail robot loading and unloading unit of the utility model comprises an overhead rail frame, a robot movable part and a unloading part, wherein the robot movable part comprises an articulated robot and a material transfer table, the articulated robot moves on the overhead rail frame, can be transferred between different machine tools, has high flexibility in use, does not occupy the space in front of the machine tool, and manual labor can conveniently check the processing status, and at the same time, a temporary storage station and a turning station are provided on the material transfer table to meet the use requirements of temporary storage and turning processing of workpieces during machine tool processing, thereby improving production efficiency; by arranging the unloading part in the middle position of the overhead rail frame, the space below the overhead rail frame can be separated into a first processing area and a second processing area, then the articulated robot can clamp one workpiece blank into the first processing area for processing, and then clamp another workpiece blank into the second processing area for processing, thereby realizing the simultaneous processing of two supporting products, so that the production quantity difference of the supporting products is small, which is beneficial to the factory production scheduling planning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the structure of the loading and unloading unit of the overhead rail robot.

[0019] Figure 2 This is a schematic diagram of the structure of the robot's active part.

[0020] Figure 3 This is a schematic diagram of the structure of the material transfer table.

[0021] Legend:

[0022] 1. Overhead rail frame; 2. Robot moving part; 201. Mobile base; 202. Driving mechanism; 203. Articulated robot; 204. Material transfer table; 3. Unloading part; 301. Workpiece pallet; 302. Unloading conveyor line; 303. Robot control cabinet; 4. Temporary storage station; 401. First workpiece bottom plate; 402. First limit block; 403. First photoelectric detection switch; 5. Turning station; 501. Second workpiece bottom plate; 502. Second limit block; 503. Elastic floating mechanism; 504. Pneumatic gripper; 505. Guide rod cylinder; 506. Second photoelectric detection switch; 6. Right-angle reducer; 7. Rack; 8. Driving motor; 9. Grease lubrication pump; 10. CNC machine tool. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 3As shown, the overhead rail robot loading and unloading unit of the present embodiment includes an overhead rail frame 1, a robot movable part 2 slidably connected to the overhead rail frame 1, and a unloading part 3 arranged below the overhead rail frame 1, the robot movable part 2 includes a mobile base 201, a driving mechanism 202 for driving the mobile base 201 to reciprocate, and an articulated robot 203 and a material transfer table 204 arranged on the mobile base 201, and a plurality of groups of temporary storage stations 4 and turning stations 5 are arranged on the material transfer table 204. The loading and unloading unit of the overhead rail robot includes an overhead rail frame 1, a robot movable part 2 and a unloading part 3, wherein the robot movable part 2 includes an articulated robot 203 and a material transfer table 204, the articulated robot 203 moves on the overhead rail frame 1, can be transferred between different machine tools, has high flexibility in use, does not occupy the space in front of the machine tool, and can conveniently check the processing status manually, and at the same time, a temporary storage station 4 and a turning station 5 are provided on the material transfer table 204 to meet the needs of temporary storage and turning processing of workpieces during machine tool processing, thereby improving production efficiency; by arranging the unloading part 3 in the middle position of the overhead rail frame 1, the space below the overhead rail frame 1 can be separated into a first processing area and a second processing area, then the articulated robot 203 can clamp a workpiece blank into the first processing area for processing, and then clamp another workpiece blank into the second processing area for processing, so that two supporting products can be processed at the same time, so that the production quantity difference of the supporting products is small, which is beneficial to the factory production scheduling planning.

[0025] Preferably, the temporary storage station 4 includes a first workpiece bottom plate 401 disposed on the material transfer table 204, and three groups of evenly distributed slide grooves are provided on the first workpiece bottom plate 401, and first limit blocks 402 for positioning the workpiece are installed in the slide grooves. In this embodiment, the number of groups of the temporary storage station 4 is set to two groups, and three groups of slide grooves are provided on the first workpiece bottom plate 401. The position of the first limit block 402 in the slide groove can be adjusted according to the size of the workpiece to accommodate different workpieces.

[0026] Preferably, the temporary storage station 4 also includes a first photoelectric detection switch 403 arranged on the material transfer table 204. The first photoelectric detection switch 403 is arranged in a one-to-one correspondence with the first workpiece bottom plate 401 to facilitate detection of the presence of workpieces on the temporary storage station 4 to prevent repeated discharge of materials.

[0027] Preferably, the turning station 5 includes a second workpiece base plate 501 arranged on the material transfer table 204, three groups of evenly distributed slide grooves are opened on the second workpiece base plate 501, and a second limit block 502 for positioning the workpiece is installed in the slide groove. An elastic floating mechanism 503 is provided between the second workpiece base plate 501 and the material transfer table 204, and a pneumatic clamp 504 and a guide rod cylinder 505 for driving the pneumatic clamp 504 to move back and forth are arranged above the second workpiece base plate 501. In this embodiment, the number of groups of the turning station 5 is set to one group, and three groups of slide grooves are opened on the second workpiece base plate 501. The position of the second limit block 502 can be adjusted in the slide groove according to the size of the workpiece to adapt to the positioning of different workpieces. Due to the compressibility of the elastic floating mechanism 503, the second workpiece base plate 501 can adapt to different height sizes and different styles of workpieces (similar outer diameters but different heights) of different processes, and has high flexibility in use, which is especially suitable for the processing needs of nut, bolt and joint products.

[0028] Preferably, the turning station 5 also includes a second photoelectric detection switch 506 arranged on the material transfer table 204. The second photoelectric detection switch 506 is arranged in a one-to-one correspondence with the second workpiece bottom plate 501 to facilitate detection of the presence or absence of workpieces on the turning station 5 to prevent repeated discharge of materials.

[0029] Preferably, the articulated robot 203 is mounted on the mobile base 201 via a right-angle reducer 6. In this embodiment, the articulated robot 203 is connected to the mobile base 201 using a right-angle reducer 6, which can reduce interference during the movement of the articulated robot 203, has the advantages of high repeatability and high rotation accuracy, and is conducive to improving processing quality.

[0030] Preferably, the driving mechanism 202 includes a rack 7 fixedly arranged on the overhead rail frame 1, a driving motor 8 fixedly arranged on the mobile base 201, and a driving gear arranged at the output end of the driving motor 8, and the driving gear is meshed and connected with the rack 7. In this embodiment, the driving mechanism 202 adopts the form of gear rack transmission, which has the advantages of strong bearing capacity, high transmission accuracy, and good operation stability. In other embodiments, the driving mechanism 202 can also adopt components with reciprocating movement functions such as chain transmission, which is not limited to this embodiment.

[0031] Preferably, a grease lubrication pump 9 for lubricating the active gear and the rack 7 is also provided on the mobile base 201. In this embodiment, a slide rail is fixedly provided on the overhead rail rack 1, and a slider is fixedly provided on the mobile base 201. The mobile base 201 and the overhead rail rack 1 are slidably connected through a slide rail and slider mechanism. The grease lubrication pump 9 is a device for supplying lubricant to the lubricated parts, and can provide lubricant for the slide rail and slider as well as the active gear and the rack 7, effectively reducing equipment failures, reducing energy consumption, improving production efficiency, and extending the service life of the equipment.

[0032] Preferably, the unloading part 3 includes several groups of workpiece pallets 301 and unloading conveyor lines 302, wherein a robot control cabinet 303 is arranged below one group of workpiece pallets 301. In this embodiment, the number of groups of workpiece pallets 301 is set to two, and the number of groups of unloading conveyor lines 302 is set to one. Different workpiece blanks can be placed on the two groups of workpiece pallets 301, respectively. The workpiece blanks are placed on different processing stations through the articulated robot 203, so that two products, such as nuts and bolts, can be processed at the same time, thereby improving production efficiency. The processed products can be placed on the unloading conveyor line 302 and transported to the next process.

[0033] Preferably, a plurality of groups of linearly arranged CNC machine tools 10 are provided below the overhead rail frame 1 , and the unloading portion 3 is located between two adjacent groups of CNC machine tools 10 . In this embodiment, the number of groups of CNC machine tools 10 is set to four groups, and the unloading part 3 is located between the second group of CNC machine tools 10 and the third group of CNC machine tools 10, wherein the nut blank is placed on the workpiece pallet 301 close to the side of the second group of CNC machine tools 10, and the articulated robot 203 clamps the nut blank to the first group of CNC machine tools 10 and the second group of CNC machine tools 10 to process the nut, and the bolt blank is placed on the workpiece pallet 301 close to the side of the third group of CNC machine tools 10, and the articulated robot 203 clamps the bolt blank to the third group of CNC machine tools 10 and the fourth group of CNC machine tools 10 to process the bolt, and the processed nut products and bolt products are placed on the unloading conveyor line 302 and conveyed to the next process, then the articulated robot 203 can complete the automated loading and unloading operations of the four groups of CNC machine tools 10, and simultaneously process two products with similar outer diameters and different heights, so that the production quantity difference of supporting products is small, which is beneficial to the factory production scheduling planning. In other embodiments, by extending the length of the overhead rail frame 1, the loading and unloading unit of the overhead rail robot of the utility model can be connected to more CNC machine tools 10, with good compatibility, high flexibility of use and a wide range of applications.

[0034] During actual application, the mobile base 201 moves on the overhead rail frame 1, driving the articulated robot 203 and the material transfer table 204 to move synchronously. When the workpiece needs to be temporarily stored during the processing of the CNC machine tool 10, the articulated robot 203 places the workpiece on the first workpiece base plate 401 of the temporary storage station 4, and there is no need to move to the workpiece pallet 301 to place the temporarily stored workpiece. During further processing, the articulated robot 203 can directly clamp the temporarily stored workpiece at the temporary storage station 4, which greatly reduces the time for the articulated robot 203 to move back and forth and improves work efficiency. When U-turn processing is required during the processing of the CNC machine tool 10, the articulated robot 203 places the workpiece on the second workpiece base plate 501 of the U-turn station 5, and the guide rod cylinder 505 drives the pneumatic clamp 504 to extend. After the pneumatic clamp 504 clamps the workpiece, the guide rod cylinder 505 retracts. At this time, the articulated robot 203 can take out the workpiece that has completed the U-turn from the pneumatic clamp 504.

[0035] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A loading and unloading unit of an overhead rail robot, characterized in that: The invention comprises a ceiling rail frame (1), a robot movable part (2) slidably connected to the ceiling rail frame (1), and a material unloading part (3) arranged below the ceiling rail frame (1); the robot movable part (2) comprises a mobile base (201), a driving mechanism (202) for driving the mobile base (201) to move back and forth, and an articulated robot (203) and a material transfer table (204) arranged on the mobile base (201); and the material transfer table (204) is provided with a plurality of groups of temporary storage stations (4) and turn-around stations (5).

2. The overhead rail robot loading and unloading unit according to claim 1, characterized in that: The temporary storage station (4) comprises a first workpiece bottom plate (401) arranged on the material transfer table (204), the first workpiece bottom plate (401) being provided with three groups of evenly distributed slide grooves, and a first limit block (402) for positioning the workpiece is installed in the slide groove.

3. The overhead rail robot loading and unloading unit according to claim 2, characterized in that: The temporary storage station (4) further comprises a first photoelectric detection switch (403) arranged on the material transfer table (204), and the first photoelectric detection switch (403) is arranged in a one-to-one correspondence with the first workpiece bottom plate (401).

4. The overhead rail robot loading and unloading unit according to claim 3, characterized in that: The turning station (5) comprises a second workpiece base plate (501) arranged on the material transfer table (204), the second workpiece base plate (501) is provided with three groups of evenly distributed slide grooves, a second limit block (502) for positioning the workpiece is installed in the slide groove, an elastic floating mechanism (503) is provided between the second workpiece base plate (501) and the material transfer table (204), and a pneumatic clamp (504) and a guide rod cylinder (505) for driving the pneumatic clamp (504) to reciprocate are provided above the second workpiece base plate (501).

5. The overhead rail robot loading and unloading unit according to claim 4, characterized in that: The turning station (5) further comprises a second photoelectric detection switch (506) arranged on the material transfer table (204), and the second photoelectric detection switch (506) is arranged in a one-to-one correspondence with the second workpiece bottom plate (501).

6. The overhead rail robot loading and unloading unit according to claim 1, characterized in that: The articulated robot (203) is mounted on the mobile base (201) via a right-angle reducer (6).

7. The overhead rail robot loading and unloading unit according to claim 1, characterized in that: The driving mechanism (202) comprises a rack (7) fixedly arranged on the overhead rail frame (1), a driving motor (8) fixedly arranged on the mobile base (201), and a driving gear arranged at the output end of the driving motor (8), the driving gear being meshingly connected with the rack (7).

8. The overhead rail robot loading and unloading unit according to claim 7, characterized in that: The movable base (201) is also provided with a grease lubrication pump (9) for lubricating the driving gear and the rack (7).

9. The overhead robot loading and unloading unit according to claim 1, characterized in that: The unloading section (3) comprises a plurality of groups of workpiece pallets (301) and unloading conveyor lines (302), wherein a robot control cabinet (303) is arranged below one group of the workpiece pallets (301).

10. The overhead robot loading and unloading unit according to any one of claims 1 to 9, characterized in that: A plurality of groups of linearly arranged numerically controlled machine tools (10) are arranged below the overhead rail frame (1), and the material discharge portion (3) is located between two adjacent groups of the numerically controlled machine tools (10).

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