A CNC machine tool processing automation production line and processing method thereof

Abstract

The present invention provides an automated production line for CNC machine tool processing, which is characterized by comprising: a CNC machine tool; a loading and unloading device, the loading and unloading device comprising a mechanical arm, a fixture for clamping parts to be processed and placing them on the CNC machine tool or removing qualified parts from the CNC machine tool is arranged on the mechanical arm, a quick-change component is arranged between the fixture and the mechanical arm, the quick-change component comprises a quick-change upper die and a quick-change lower die, the quick-change upper die is connected to the quick-change lower die, the quick-change upper die is fixed to the mechanical arm, and the quick-change lower die is fixed to the fixture via a connecting flange; a feeding device, the feeding device is used to transfer the parts to be processed to the gripping position of the mechanical arm; the advantage is that by providing the feeding device, mechanized automatic feeding is realized; by providing the mechanical arm, loading and unloading operations can be performed instead of manual labor, so that the entire processing and production process does not require excessive manual intervention, reduces the consumption of human resources, and enables one operator to operate multiple CNC machine tools.

Description

Technical Field

[0001] The invention belongs to the technical field of processing and production machinery, and in particular relates to a CNC machine tool processing automation production line and a processing method thereof. Background Art

[0002] Computer numerical control machine tools are automated machine tools equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, and decode them, so that the machine tool can move and process parts. At present, the processing of CNC machine tools generally adopts manual loading, manual clamping and manual unloading. Each CNC machine tool needs to be equipped with a staff member to operate, which requires a large amount of human resources; and in the process of manual assembly operation, the labor intensity of a single operation is high, and fatigue is easy to occur, which leads to problems such as loose clamping and inaccurate positioning, which easily leads to rework and scrapping of workpieces; when loading and unloading manually, there are often accidents of shavings and scratches, and the cutting fluid is corrosive to a certain extent, which affects the health of the staff. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the prior art and to propose a CNC machine tool processing automation production line and a processing method thereof which can automate processing and reduce manual intervention.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A CNC machine tool processing automation production line, comprising:

[0005] CNC machine tools;

[0006] A loading and unloading device, the loading and unloading device comprises a mechanical arm, the mechanical arm is provided with a fixture for clamping the parts to be processed and placing them on the CNC machine tool or removing the processed qualified parts from the CNC machine tool, a quick-change assembly is provided between the fixture and the mechanical arm, the quick-change assembly comprises a quick-change upper die and a quick-change lower die, the quick-change upper die is connected to the quick-change lower die, and the quick-change upper die is fixed to the mechanical arm, and the quick-change lower die is fixed to the fixture via a connecting flange;

[0007] A feeding device is used to transfer the parts to be processed to the gripping position of the robot arm.

[0008] In the above-mentioned automated production line for CNC machine tools, the feeding device comprises:

[0009] A loading rack, wherein a fixed guard plate and a side guard plate are arranged on the loading rack, the length direction of the fixed guard plate is parallel to the length direction of the side guard plate, and a gap for conveying shaft parts is formed between the fixed guard plate and the side guard plate;

[0010] A positioning frame, the positioning frame is connected to the feeding frame, and the upper surfaces of the positioning frame and the feeding frame are both inclined surfaces, the positioning frame is provided with two guide plates opposite to each other, a gap for transmitting shaft parts is formed between the two guide plates, the positioning frame is provided with a first positioning block for positioning shaft parts, the first positioning block is provided with a first positioning groove, and the positioning frame is provided with a positioning stopper and a positioning push block opposite to each other, and the positioning stopper, the positioning push block and the first positioning groove are located on the same horizontal line, the positioning push block is provided with a first pushing member, and the first pushing member pushes the shaft parts to move in the direction of the positioning stopper;

[0011] A ejector plate is arranged between the feeding frame and the positioning frame, and a driving member for driving the ejector plate to work is arranged on the ejector plate.

[0012] In the above-mentioned automated production line for CNC machine tools, the feeding device comprises:

[0013] A workbench, wherein rollers are arranged at the bottom of the workbench;

[0014] Limiting bars, the number of which is at least two, which are relatively arranged on the workbench and rotatably connected to the workbench;

[0015] A support block is used to support the placement of the parts to be processed, and the support block is arranged on the limit bar;

[0016] A limit plate, wherein the limit plate is arranged on the support block, the limit plate is provided with a limit hole for placing the part to be processed, and a support column is arranged between the limit plate and the support block, so that there is a gap between the limit plate and the support block;

[0017] A positioning unit, the positioning unit includes four columns surrounding the bottom of the workbench, two columns on the side close to the mechanical arm are provided with guide plates, the guide plates are respectively arranged on the side of the columns away from the workbench, and a buffer column is arranged on the side of the columns facing the workbench, and the other two columns on the side away from the mechanical arm are provided with a locking plate facing the workbench, and the locking plate is abutted against the workbench, a protrusion is provided on the lower surface of the locking plate, and a sliding groove is provided on the upper surface of the column, the protrusion can slide in the sliding groove, and the pin passes through the locking plate and is plugged and fixed with the column.

[0018] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod has a round shank to contact with said linking rod.

[0019] In the above-mentioned automated production line for CNC machine tools, the clamp includes a mounting seat and three clamping fingers, the mounting seat is fixed to the connecting flange, the clamping fingers and the mounting seat can slide relative to each other, so that the three clamping fingers can be clamped and released relative to each other, and a spring-top plate is provided on the mounting seat, and a plurality of spring-top pins are arranged at intervals on one side of the spring-top plate facing the mounting seat, and an elastic member is provided between the spring-top pins and the mounting seat.

[0020] In the above-mentioned automatic production line for CNC machine tool processing, a sampling inspection feeding tool is also included, and the transmission sampling inspection feeding tool includes:

[0021] Feeding rack;

[0022] A positioning assembly, the positioning assembly is arranged on the feeding frame, and the positioning assembly is used to position the processed parts;

[0023] A driving assembly, wherein the driving assembly comprises a rodless cylinder, the rodless cylinder is arranged on the feeding frame, and the length direction of the rodless cylinder is parallel to the length direction of the feeding frame, a slider is arranged on the rodless cylinder, the slider is slidably matched with the rodless cylinder, and the slider is connected to the positioning assembly to drive the positioning assembly to work;

[0024] A button box is arranged on the feeding machine frame and a control button in the button box is electrically connected to the rodless cylinder.

[0025] In the above-mentioned automated production line for numerically controlled machine tools, the positioning assembly includes a first support plate arranged on the slider, a first positioning unit is arranged on the first support plate, the first positioning unit includes an adjusting disk arranged on the first support plate and three positioning shafts for positioning the processed parts, three adjusting grooves of the same shape are arranged on the adjusting disk at intervals around the center position of the adjusting disk, and a rotating seat is arranged between the adjusting disk and the first support plate, three first limiting grooves are arranged on the rotating seat at the center position of the rotating seat, the three positioning shafts vertically pass through the first limiting grooves and the adjustment grooves, and two first limiting blocks are arranged at intervals at the bottom of each of the positioning shafts, gaps are arranged between the rotating seat and the first support plate, and between the adjusting disk and the rotating seat, the two first limiting blocks are respectively arranged in the corresponding gaps, and a set screw passes through the center of the adjusting disk and is screwed to the rotating phase to lock the adjusting disk.

[0026] In the above-mentioned CNC machine tool processing automation production line, the positioning assembly includes a second support plate arranged on the sliding block, a second positioning unit is arranged on the second support plate, the second positioning unit includes a fixed plate arranged on the second support plate, at least two second positioning blocks are arranged on the fixed plate, each of the second positioning blocks is provided with a second positioning groove, two second limit blocks are relatively arranged along the length direction of the fixed plate, and a limit groove is arranged on the second support plate, and a second connecting block is arranged at the bottom of the second positioning block and the second limit block, and the second connecting block is arranged in the limit groove and can slide with the limit groove.

[0027] In the above-mentioned CNC machine tool processing automation production line, it also includes:

[0028] A fixture quick-change fixture, the fixture quick-change fixture comprises a quick-change bracket, two support plates are arranged on the quick-change bracket in opposite relation, both support plates are provided with support grooves for supporting the quick-change lower die, and a quick-change support plate is arranged between the quick-change upper die and the connecting flange, two positioning holes are arranged on the quick-change support plate in opposite relation, positioning columns are arranged on the support plate in opposite relation, when the quick-change lower die is placed on the support plate, after the positioning columns pass through the positioning holes, the support plate supports the quick-change support plate;

[0029] A parts reversing tool, the parts reversing tool comprises a reversing bracket, a fixed seat is arranged on the reversing bracket, the fixed seat and the parts reversing bracket form a cavity for placing the parts to be processed, an upper pressure plate and a lower support plate for clamping the processed parts are arranged in the cavity, and a second pushing member is arranged on the fixed seat, the second pushing member pushes the upper pressure plate to move toward the direction of the lower support plate until the upper pressure plate and the lower support plate clamp the processed parts.

[0030] A processing method for a CNC machine tool processing automation production line, the processing method comprising the following steps:

[0031] S1. Manually place the parts to be processed on the feeding device, which transports the parts to be processed and delivers them to the gripping position of the robot arm;

[0032] S2. After the part to be processed is transferred to the designated position, the robot arm starts working, and the fixture on the robot arm grabs a part to be processed;

[0033] S3, the robot arm grabs the part to be processed onto the chuck of the CNC lathe, and the chuck clamps the part to be processed;

[0034] S4, the CNC machine tool starts to work and processes the parts to be processed;

[0035] S5, the CNC machine tool stops working, the processing is completed, the robot arm grabs the processed part on the chuck, the chuck is released, the robot arm moves with the processed part to the part reversing tooling, and uses the part reversing tooling to change the direction of the processed part gripped by the robot arm;

[0036] S6, repeat steps S3-S4;

[0037] S7, the manipulator controls one of the fixtures to grab a part to be processed in the above step S1 and waits;

[0038] S8, after the previous batch of processed parts is processed in the CNC machine tool, the manipulator controls another fixture to grab the processed parts on the chuck of the CNC machine tool and remove them from the chuck, and then the manipulator places the parts to be processed grabbed by one of the fixtures in the above step S7 on the chuck of the CNC machine tool;

[0039] S9, the robot controls another fixture to place the finished parts on the rack;

[0040] S10, repeat the above steps S1-S9 in a loop.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] An automated production line for CNC machine tool processing realizes mechanized automatic feeding by being provided with a feeding device; a mechanical arm can replace manual loading and unloading operations, so that the entire processing and production process does not require excessive manual intervention, reduces the consumption of human resources, and enables one operator to operate multiple CNC machine tools; and compared with traditional manual assembly, assembly operations performed using a mechanical arm can repeat a single assembly operation without causing fatigue, loose clamping, inaccurate positioning, and other problems; during manual loading and unloading, accidents of scratches by shavings often occur, and the cutting fluid has a certain degree of corrosiveness, affecting the health of the workers, while loading and unloading operations performed using a mechanical arm do not have to worry about affecting personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a top view of the first embodiment of the present invention;

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the feeding device of the first embodiment of the present invention;

[0045] Figure 3 yes Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0046] Figure 4 It is a schematic diagram of the three-dimensional structure of the loading and unloading device of the first embodiment of the present invention;

[0047] Figure 5 yes Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0048] Figure 6 It is a schematic diagram of the three-dimensional structure of the transmission sampling tooling according to the first embodiment of the present invention;

[0049] Figure 7 is a top view of the second embodiment of the present invention;

[0050] Figure 8 is a schematic diagram of the three-dimensional structure of a feeding device according to a second embodiment of the present invention;

[0051] Fig. 9 is a schematic diagram of the three-dimensional structure of a clamp according to the second embodiment of the present invention;

[0052] Fig.10 This is one of the three-dimensional structural schematic diagrams of the transmission sampling tooling according to the second embodiment of the present invention;

[0053] Fig.11 This is one of the three-dimensional structural schematic diagrams of the transmission sampling tooling according to the second embodiment of the present invention;

[0054] Fig.12 It is a three-dimensional structural schematic diagram of the fixture quick-change tooling in the present invention;

[0055] Fig.13 It is a three-dimensional structural schematic diagram of the part reversing tooling in the present invention.

[0056] In the figure, CNC machine tool 1; feeding device 2; loading frame 2100; fixed guard plate 2101; side guard plate 2102; positioning frame 2200; guide plate 2201; first positioning block 2202; first positioning groove 2203; ejector plate 2300; adjustment plate 2303; guide rod 2401; photoelectric sensor 2501; baffle plate 2500; positioning block 2601; positioning push block 2600; first push member 2602; part to be processed 2700; workbench 2801; limit bar 2802; support block 2803; limit plate 2804; limit hole 2805; support column 2806; column 2900; guide plate 2901; buffer column 2902; clamping plate 2903; slide groove 2904; loading and unloading device 3; mechanical arm 3200; fixture 3300; upper mold 3401; quick-change lower mold 3402; connecting flange 3403; first connecting block 3501; base 3502; clamping block 3503; clamping groove 3504; connecting plate 3507; sliding block 3508; slide rail 3509; fixed block 3510; Connecting seat 3511; mounting groove 3512; mounting seat 3600; clamping finger 3601; ejector plate 3604; ejector pin 3606; spring plate 3608; sampling feeding tool 4; feeding frame 4100; rodless cylinder 4200; slider 4201; button box 4300; second support plate 4500; fixing plate 4501; second positioning block 4502; second positioning groove 4503; second limiting block 4504; limiting groove 4505; second connecting block 4506; first support plate 4400; adjustment plate 4 402; positioning shaft 4401; adjustment groove 4403; rotating seat 4404; first limit block 4405; cover plate 4406; second limit groove 4407; hydraulic buffer 4600; fixture quick change tooling 6; quick change bracket 6100; support plate 6101; support groove 6102; quick change support plate 6103; positioning hole 6104; positioning column 6105; part reversing tooling 5, reversing bracket 5100, fixed seat 5101, upper pressure plate 5102 and lower support plate 5103, second pusher 5200. DETAILED DESCRIPTION

[0057] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0058] Embodiment 1: Figure 1 As shown, a CNC machine tool processing automation production line includes:

[0059] CNC machine tools 1;

[0060] The loading and unloading device 3 includes a mechanical arm 3200, on which a fixture 3300 is provided for clamping the part 2700 to be processed and placing it on the CNC machine tool 1 or removing the processed qualified part from the CNC machine tool 1. A quick-change assembly is provided between the fixture 3300 and the mechanical arm 3200, and the quick-change assembly includes a quick-change upper die 3401 and a quick-change lower die 3402. The quick-change upper die 3401 is connected to the quick-change lower die 3402, and the quick-change upper die 3401 is fixed to the mechanical arm 3200, and the quick-change lower die 3402 is fixed to the fixture 3300 via a connecting flange 3403.

[0061] The feeding device 2 is used to transfer the part 2700 to be processed to the gripping position of the robot arm 3200.

[0062] An automated production line for CNC machine tools is provided with a feeding device 2 to achieve mechanized automatic feeding; a mechanical arm 3200 is provided to replace manual loading and unloading operations, so that the entire processing and production process does not require excessive human intervention, reducing the consumption of human resources, so that one operator can operate multiple CNC machine tools; and compared with traditional manual assembly, the assembly operation performed by the mechanical arm 3200 can repeat a single assembly operation without causing fatigue, and will not cause problems such as loose clamping and inaccurate positioning; during manual loading and unloading, accidents of scratches by shavings often occur, and the cutting fluid has a certain degree of corrosiveness, affecting the health of the staff, while when the mechanical arm 3200 is used for loading and unloading operations, there is no need to worry about the impact on personal safety.

[0063] Specifically, the processing production line in this embodiment is a long-axis parts processing production line, and in order to ensure the safety of operators, a protective fence is set in the production workshop to separate the processing area from the non-processing area, so as to ensure the personal safety of operators.

[0064] As a preference, Figure 2 , Figure 3 As shown, the feeding device 2 includes:

[0065] A loading frame 2100, on which a fixed guard plate 2101 and a side guard plate 2102 are arranged, wherein the length direction of the fixed guard plate 2101 is parallel to the length direction of the side guard plate 2102, and a gap for conveying shaft parts is formed between the fixed guard plate 2101 and the side guard plate 2102;

[0066] The positioning rack 2200 is connected to the loading rack 2100, and the upper surfaces of the positioning rack 2200 and the loading rack 2100 are both inclined surfaces. Two guide plates 2201 are relatively arranged on the positioning rack 2200, and a gap for transmitting shaft parts is formed between the two guide plates 2201. The positioning rack 2200 is provided with a first positioning block 2202 for positioning shaft parts, and the first positioning block 2202 is provided with a first positioning groove 2203. The positioning rack 2200 is relatively provided with a positioning stopper 2601 and a positioning push block 2600, and the positioning stopper 2601, the positioning push block 2600 and the first positioning groove 2203 are located on the same horizontal line. The positioning push block 2600 is provided with a first pushing member 2602, and the first pushing member 2602 pushes the shaft parts to move in the direction of the positioning stopper 2601.

[0067] The ejector plate 2300 is disposed between the loading frame 2100 and the positioning frame 2200 . The ejector plate 2300 is provided with a driving member (not shown in the figure) for driving the ejector plate 2300 to work.

[0068] Specifically, a guide rod 2401 is provided between the fixed guard plate 2101 and the side guard plate 2102 and between the two guide plates 2201, which can reduce the contact between the workpiece 2700 to be processed and the frame, reduce friction and stains, and the side guard plate 2102 and the guide plate 2201 are provided with connecting pieces (not shown in the figure), and a plurality of bolt holes are provided on the frame. The set screw passes through one of the bolt holes and is tightened by a nut, so that the distance between the fixed guard plate 2101 and the side guard plate 2102 and between the two guide plates 2201 can be adjusted, so that the feeding device The arrangement can adapt to parts 2700 to be processed of different lengths; the first pushing member 2602 is a cylinder, which can push the part 2700 to be processed to move in the direction of the positioning block 2601 until one end of the part 2700 to be processed close to the positioning block 2601 abuts against the positioning block 2601, thereby more accurately positioning the part 2700 to be processed; a photoelectric sensor 2501 is arranged on the positioning frame to monitor whether the robot arm 3200 has clamped the transferred part; a material baffle plate 2500 is arranged on the first positioning block 2202.

[0069] Furthermore, the driving member is a cylinder, and a connecting plate (not shown in the figure) is arranged below the ejection plate 2300. The cylinder shaft of the cylinder is vertically fixed upward to the connecting plate. Adjustment plates 2303 are arranged opposite to each other on both sides of the ejection plate 2300. The adjustment plates 2303 are provided with adjustment waist-shaped holes. The set screws pass through the adjustment waist-shaped holes and are screwed to the connecting plate and the ejection plate 2300 respectively, so that the distance between the connecting plate and the ejection plate 2300 is adjustable, and the working stroke of the ejection plate 2300 is adjustable. Guide rods are arranged on both sides of the connecting plate, and shock-absorbing pads are arranged on the guide rods.

[0070] In this embodiment, by providing a loading rack 2100 and a positioning rack 2200 with an inclined upper surface, the shaft parts to be processed can roll along the loading rack 2100, and the parts are pushed into the first positioning groove 2203 on the first positioning block 2202 of the positioning rack 2200 by the ejection plate 2300, so as to position the parts 2700 to be processed, so that the robot arm 3200 can grab the parts 2700 to meet the requirements of automated production and improve production efficiency; by cooperating with the positioning push block 2600 and the positioning stop block 2601, the parts 2700 to be processed can be positioned more accurately, so that the fixture 3300 can grab them and reduce positioning errors.

[0071] More preferably, if Figure 4 , Figure 5 As shown, the clamp 3300 includes a first connection block 3501 arranged on the connection flange 3403, two bases 3502 are arranged on the first connection block 3501, and the two bases 3502 are each provided with a clamping block 3503. The clamping block 3503 is provided with a clamping groove 3504 for grabbing shaft parts. The base 3502 and the first connection block 3501 are slidably matched, so that the two clamping blocks 3503 can be relatively clamped and loosened. The first connection block 3501 is provided with a connecting plate 3507 on the side facing the connection flange 3403, and a sliding block 3508 is fixed on the connecting plate 3507. The connection flange 3403 is provided with a connecting plate 3507. A slide rail 3509 is fixed on 403, and the slide rail 3509 is slidably matched with the sliding block 3508. Fixed blocks 3510 are arranged on both sides of the connecting plate 3507. Two connecting seats 3511 are arranged opposite to each other on the connecting flange 3403. The connecting seats 3511 are provided with mounting grooves 3512. The fixed blocks 3510 are arranged in the mounting grooves 3512, and the fixed blocks 3510 can slide in the mounting grooves 3512. An elastic connecting member (not shown in the figure) is arranged in the mounting grooves 3512, and one end of the elastic connecting member is connected to the fixed block 3510, and the other end of the elastic connecting member is connected to the connecting seat 3511.

[0072] By providing an elastic connector in cooperation with the slide rail 3509, the clamp 3300 can be slightly shaken, thereby reducing the rigid collision when the clamp 3300 grabs the product and the rigid collision when the clamp 3300 clamps the product and places it on a lathe for processing, thereby increasing the service life of the clamp 3300.

[0073] As a preference, Figure 6 As shown, a CNC machine tool processing automation production line also includes a sampling inspection feeding tool 4, and the sampling inspection feeding tool 4 includes:

[0074] A positioning assembly, which is disposed on the feeding frame 4100 and is used to position the processed parts;

[0075] A driving assembly, the driving assembly includes a rodless cylinder 4200, the rodless cylinder 4200 is arranged on the feeding frame 4100, and the length direction of the rodless cylinder 4200 is parallel to the length direction of the feeding frame 4100, and a slider 4201 is arranged on the rodless cylinder 4200, the slider 4201 is slidably matched with the rodless cylinder 4200, and the slider 4201 is connected to the positioning assembly to drive the positioning assembly to work;

[0076] Button box 4300, button box 4300 is set on the feeding rack 4100 and the control button 4300 in the button box is electrically connected to the rodless cylinder 4200. When random inspection is required, the control button in the button box 4300 controls the positioning assembly to drive the random inspection parts to be sent out from the processing area.

[0077] Further preferably, the positioning assembly includes a second support plate 4500 arranged on the slider 4201, the second support plate is provided with a second positioning unit, the second positioning unit includes a fixed plate 4501 arranged on the second support plate 4500, at least two second positioning blocks 4502 are provided on the fixed plate 4501, each second positioning block 4502 is provided with a second positioning groove 4503, two second limit blocks 4504 are relatively arranged along the length direction of the fixed plate 4501, and a limit groove 4505 is provided on the second support plate 4500, and the bottom of the second positioning block 4502 and the second limit block 4504 are both provided with a second connecting block 4506, the second connecting block 4506 is arranged in the limit groove 4505 and can be slidably matched with the limit groove 4505.

[0078] Specifically, the existing technology can be used to control the robot to clamp a part and place it on the feeding sampling tool for sampling after quantitatively producing a batch of parts. Sensors can also be set on the feeding rack 4100 to sense the action of the robot to clamp the processed part and place it on the positioning component, thereby controlling the next action of the robot.

[0079] Furthermore, in this embodiment, a discharging device 7 with a transmission belt is provided to convey the qualified parts that have been processed.

[0080] A processing method for a CNC machine tool processing automation production line, the processing method comprising the following steps:

[0081] S1. Manually place the part 2700 to be processed on the feeding device, and the feeding device conveys the part 2700 to be processed and conveys it to the first positioning groove 2203 on the first positioning block 2202 of the positioning frame 2200;

[0082] S2. After the part 2700 to be processed is transferred to the designated position, the robot arm 3200 starts to work, and the fixture 3300 on the robot arm 3200 grabs a part 2700 to be processed;

[0083] S3, the robot arm 3200 grabs the part to be processed 2700 onto the chuck of the CNC lathe 1, and the chuck clamps the part to be processed 2700;

[0084] S4, CNC machine tool 1 starts to work and processes the part 2700 to be processed;

[0085] S5, the CNC machine tool 1 stops working, the processing is completed, the robot arm 3200 grabs the processed part on the chuck, the chuck is released, and the robot arm 3200 moves the processed part to the part reversing tooling with the processed part, and uses the part reversing tooling to change the direction of the processed part gripped by the robot arm 3200;

[0086] S6, repeat steps S3-S4;

[0087] S7, the robot arm 3200 controls one of the fixtures 3300 to grab a part 2700 to be processed in the above step S1 and wait;

[0088] S8, after the previous batch of processed parts is processed in the CNC machine tool 1, the robot arm 3200 controls another fixture 3300 to grab the processed parts on the chuck of the CNC machine tool 1 and remove them from the chuck, and then the robot arm 3200 places the to-be-processed parts 2700 grabbed by one of the fixtures 3300 in the above step S7 onto the chuck of the CNC machine tool 1;

[0089] S9, the robot arm 3200 controls another fixture 3300 to place the finished processed parts onto the discharge device 7;

[0090] S10, repeat the above steps S1-S9 in a loop.

[0091] Embodiment 2: Figure 7 , Figure 8 As shown, the remaining components are the same as those in the first embodiment, except that the feeding device 2 includes:

[0092] A workbench 2801, the bottom of which is provided with rollers, which can move the position of the workbench 2801;

[0093] Limiting bars 2802, the number of the limiting bars 2802 is at least two, the limiting bars 2802 are relatively arranged on the workbench 2801 and are rotatably connected to the workbench 2801, and the upper surfaces of the limiting bars 2802 are all inclined surfaces;

[0094] A support block 2803 is used to support the placement of the part 2700 to be processed, and the support block 2803 is arranged on the limiting bar 2802;

[0095] A limiting plate 2804, the limiting plate 2804 is arranged on the limiting bar 2802, a limiting hole 2805 for placing the part 2700 to be processed is arranged on the limiting plate 2804, and a supporting column 2806 is arranged between the limiting plate 2804 and the supporting block 2803, so that there is a gap between the limiting plate 2804 and the supporting block 2803, and the part 2700 to be processed is placed in the limiting hole 2805, and the limiting plate 2804 and the supporting plate 2803 are connected by a knob;

[0096] The positioning unit includes four columns 2900 surrounding the bottom of the workbench 2801. The two columns 2900 on the side close to the robot arm 3200 are each provided with a guide plate 2901. The guide plates 2901 are respectively arranged on the side of the column 2900 away from the workbench, and a buffer column 2902 is arranged on the side of the column 2900 facing the workbench. The other two columns 2900 on the side away from the robot arm 3200 are provided with a locking plate 2903 facing the workbench 2801, and the locking plate 2903 is against the workbench 2801. A protrusion is arranged on the lower surface of the locking plate 2903, and a slide groove 2904 is arranged on the upper surface of the column 2900. The protrusion can slide in the slide groove 2904, and the latch passes through the locking plate 2903 and is plugged and fixed to the column 2900.

[0097] Specifically, the processing production line in this embodiment is a top hat parts processing production line. A stepper motor is arranged in the workbench 2801, and the stepper motor drives the limit bar 2802 to rotate; a sensor is arranged on the workbench 2801 to monitor whether the limit plate 2804 has rotated into place, and a switch door is arranged on the side of the workbench 2801 away from the robotic arm to facilitate the discharge of materials onto the workbench 2801.

[0098] In this embodiment, a limiting strip 2802 with an inclined surface is provided so that the support block 2803 and the limiting plate 2804 on the side close to the robot arm 3200 are tilted downward, so that the robot arm 3200 drives the clamp 3300 to grab the parts to be processed 2700 in the feeding device 2. When all the parts 2700 to be processed on the limiting plate 2804 on the side close to the robot arm 3200 are processed, the stepper motor drives the support block 2803 to rotate 180 degrees, and the robot arm 3200 begins to clamp the parts 2700 to be processed placed on the limiting plate 2804 on the other side. When the robot arm 3200 completes the processing of the shaft parts to be processed, the shaft parts to be processed are placed back in the limiting hole 2805 where they were originally located.

[0099] More preferably, if Fig. 9As shown, the clamp 3300 includes a mounting seat 3600 and three clamping fingers 3601, the mounting seat 3600 is fixed to the connecting flange 3403, the clamping fingers 3601 and the mounting seat 3600 can slide relative to each other, so that the three clamping fingers 3601 can be relatively clamped and loosened, and a spring-top plate 3604 is provided on the mounting seat 3600, and a plurality of spring-top pins 3606 are arranged at intervals on the side of the spring-top plate 3604 facing the mounting seat 3600, and an elastic member is arranged between the spring-top pins 3606 and the mounting seat 3600. Since there may be errors each time the clamp 3300 grabs the part 2700 to be processed, deviations will also occur when the part 2700 to be processed is processed using a lathe, by providing the spring-top plate 3604, the part 2700 to be processed can be pushed to the specified position of the lathe processing, thereby reducing the positioning error.

[0100] Specifically, the elastic member is a spring, and a spring groove (not shown in the figure) is provided on the mounting seat 3600. One end of the ejector pin 3606 is fixed to the ejector plate 3604, and the other end of the ejector pin 3606 is arranged in the spring groove and can slide in the spring groove. A spring plate 3608 is provided on the spring groove, and both ends of the spring are respectively connected to the ejector pin 3606 and the spring plate 3608.

[0101] The working process of clamping parts using the clamp 3300 is as follows: the clamping fingers 3601 open, the clamp 3300 approaches the part to be processed 2700, the part to be processed 2700 squeezes the ejector plate 3604, the ejector plate 3604 drives the ejector pin 3606 to move, and the spring is stretched at this time. Then, the clamping fingers 3601 contract, clamp the processed part and move it toward the processing machine tool, and when it reaches the designated processing position, the clamping fingers 3601 open, and at the same time, the stretched spring begins to reset and drives the ejector plate 3604 to push the processed part to the processing position.

[0102] As a preference, Fig.10 , Fig.11 As shown, the positioning assembly includes a first support plate 4400 disposed on a slider 4201, and a first positioning unit is disposed on the first support plate 4400.

[0103] The first positioning unit includes an adjusting disk 4402 arranged on the first supporting plate 4400 and three positioning shafts 4401 for positioning the processed parts. Three adjusting grooves 4403 of the same shape are arranged at intervals around the center position of the adjusting disk 4402 on the adjusting disk 4402, and a rotating seat 4404 is arranged between the adjusting disk 4402 and the first supporting plate 4400. Three first limiting grooves are arranged on the rotating seat 4404 around the center position of the rotating seat 4404. The three positioning shafts 4401 vertically pass through the first limiting grooves and the adjusting grooves 4403 upwards, and two first limiting blocks 4405 are arranged at intervals at the bottom of each positioning shaft 4403. Gaps are arranged between the rotating seat 4404 and the first supporting plate 4400 and between the adjusting disk 4402 and the rotating seat 4404. The two first limiting blocks 4405 are respectively arranged in the corresponding gaps. The set screw passes through the center of the adjusting disk 4402 and is screwed to the rotating seat 4404 to lock the adjusting disk 4402.

[0104] In the above embodiment, a cover plate 4406 is provided on the adjustment disk 4402, and three second limiting grooves 4407 are spaced around the center position of the cover plate 4406. The positioning shaft 4401 vertically passes through the second limiting groove 4407. The cover plate 4406 is provided to support the processed parts to prevent the processed parts from directly contacting the adjustment disk 4402 and causing damage to the adjustment disk 4402.

[0105] In this embodiment, the first limiting groove and the second limiting groove 4407 have the same shape and distribution.

[0106] The process of adjusting the three positioning shafts 4401 using the adjustment disk 4402 is as follows: unscrewing the set screw to allow the adjustment disk 4402 to rotate, and then rotating the adjustment disk 4402 along the extension direction of the adjustment slot 4403 to reduce the intervals between the three positioning shafts 4401; rotating the adjustment disk 4402 in the opposite direction can expand the gaps between the three positioning shafts 4401, and adjusting the gaps between the three positioning shafts 4401 according to the inner diameter size of the processed parts, so that the positioning assembly can be suitable for processed parts with different inner diameters.

[0107] In all the above embodiments, the first support plate 4400 and the second support plate 4500 can be integrally arranged, so that the conveying and sampling tooling can be suitable for the conveying of different parts, and the economy is better; two hydraulic buffers 4600 are relatively arranged on the feeding rack 4100 along the length direction, which play a certain buffering role on the positioning assembly to prevent the slider 4201 from moving too fast and causing damage to the device; a second slide rail 4202 is arranged along the length direction of the feeding rack 4100, and the positioning assembly is slidably matched with the second slide rail 4202. By providing the second slide rail 4202, a guiding effect can be provided for the movement of the positioning assembly, and at the same time, a certain supporting effect can also be played on the positioning assembly.

[0108] In all the above embodiments, Fig.12 , Fig.13 As shown, a CNC machine tool processing automation production line also includes:

[0109] The fixture quick-change fixture 6 comprises a quick-change bracket 6100, on which a support plate 6101 is arranged oppositely, on which a support groove 6102 for supporting a quick-change lower die 3403 is arranged, and between the quick-change upper die 3401 and the connecting flange 3403, a quick-change support plate 6103 is arranged, on which positioning holes 6104 are arranged oppositely, and on which positioning columns 6105 are arranged oppositely, when the quick-change lower die 3402 is placed on the support plate 6101, the positioning columns 6105 pass through the positioning holes 6104, and the support plate 6101 supports the quick-change support plate 6103;

[0110] The part reversing tool 5 includes a reversing bracket 5100, on which a fixed seat 5101 is arranged, the fixed seat 5101 and the reversing bracket 5100 form a cavity for placing the part 2700 to be processed, an upper pressure plate 5102 and a lower support plate 5103 for clamping the processed part are arranged in the cavity, and a second pushing member 5200 is arranged on the fixed seat 5101, and the second pushing member 5200 can push the upper pressure plate 5102 to move toward the lower support plate 5103 until the upper pressure plate 5102 and the lower support plate 5103 clamp the processed part.

[0111] Specifically, the second pushing member 5200 is a cylinder, the cylinder seat of the cylinder is set on the fixed seat 5101, the cylinder axis of the cylinder passes downward through the fixed seat 5101 and is fixed to the upper pressure plate 5102, and V-shaped grooves are provided on the upper pressure plate 5102 and the lower support plate 5103 to facilitate clamping of the processing.

[0112] In the present application, different fixtures 3300 can be placed by providing a fixture quick-change tool 6, so as to achieve quick change between different fixtures 3300; the part reversing tool 5 can be used to reverse the direction of the processed parts. For top hat parts, due to their short length, the rotation of the robot arm 3300 alone cannot change the direction of the parts to be clamped on the hydraulic chuck of the machine tool, so the upper pressure plate 5102 and the lower support plate 5103 can be used to clamp the processed parts, and then the robot arm 3200 can be reversed to process the parts in another direction.

[0113] In the present application, a hydraulic chuck automatic clamping device (not shown in the figure) and a hydraulic tooling chip blowing device (not shown in the figure) are also provided. The hydraulic chuck automatic clamping device and the hydraulic tooling chip blowing device are installed in the CNC machine tool 1.

[0114] A processing method for a CNC machine tool processing automation production line, the processing method comprising the following steps:

[0115] S1. Manually place the workpiece 2700 to be processed into the limiting hole 2805 on the limiting plate 2804 of the workbench 2801.

[0116] S2, after the worktable rotates and the part to be processed 2700 is transferred to the designated position, the robot arm 3200 starts to work, and the fixture 3300 on the robot arm 3200 grabs a part to be processed 2700;

[0117] S3, the robot arm 3200 grabs the part to be processed 2700 onto the chuck of the CNC lathe 1, and the chuck clamps the part to be processed 2700;

[0118] S4, CNC machine tool 1 starts to work and processes the part 2700 to be processed;

[0119] S5, the CNC machine tool 1 stops working, the processing is completed, the robot arm 3200 grabs the processed part on the chuck, the chuck is released, and the robot arm 3200 moves the processed part to the part reversing tooling with the processed part, and uses the part reversing tooling to change the direction of the processed part gripped by the robot arm 3200;

[0120] S6, repeat steps S3-S4;

[0121] S7, the robot arm 3200 controls one of the fixtures 3300 to grab a part 2700 to be processed in the above step S1 and wait;

[0122] S8, after the previous batch of processed parts is processed in the CNC machine tool 1, the robot arm 3200 controls another fixture 3300 to grab the processed parts on the chuck of the CNC machine tool 1 and remove them from the chuck, and then the robot arm 3200 places the to-be-processed parts 2700 grabbed by one of the fixtures 3300 in the above step S7 onto the chuck of the CNC machine tool 1;

[0123] S9, the robot arm 3200 controls another fixture 3300 to place the finished part into the free limiting hole 2805 on the limiting plate 2804;

[0124] S10, repeat the above steps S1-S9 in a loop.

[0125] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0126] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A CNC machine tool processing automation production line, It is characterized in that include: CNC machine tools; A loading and unloading device, the loading and unloading device comprises a mechanical arm, the mechanical arm is provided with a fixture for clamping the parts to be processed and placing them on the CNC machine tool or removing the processed qualified parts from the CNC machine tool, a quick-change assembly is provided between the fixture and the mechanical arm, the quick-change assembly comprises a quick-change upper die and a quick-change lower die, the quick-change upper die is connected to the quick-change lower die, and the quick-change upper die is fixed to the mechanical arm, and the quick-change lower die is fixed to the fixture via a connecting flange; A feeding device, which is used to transfer the parts to be processed to the gripping position of the robot arm; The feeding device comprises: A workbench, wherein rollers are arranged at the bottom of the workbench; Limiting bars, the number of which is at least two, which are relatively arranged on the workbench and rotatably connected to the workbench; A support block is used to support the placement of the parts to be processed, and the support block is arranged on the limit bar; A limit plate, wherein the limit plate is arranged on the support block, the limit plate is provided with a limit hole for placing the part to be processed, and a support column is arranged between the limit plate and the support block, so that there is a gap between the limit plate and the support block; A positioning unit, the positioning unit comprises four columns surrounding the bottom of the workbench, two columns on the side close to the mechanical arm are provided with guide plates, the guide plates are respectively provided on the side of the columns away from the workbench, and a buffer column is provided on the side of the columns facing the workbench, and the other two columns on the side away from the mechanical arm are provided with a clamping plate facing the workbench, and the clamping plate is against the workbench, a convex block is provided on the lower surface of the clamping plate, and a sliding groove is provided on the upper surface of the column, the convex block can slide in the sliding groove, and the latch passes through the clamping plate and is plugged and fixed with the column; The clamp comprises a mounting seat and three clamping fingers, the mounting seat is fixed to the connecting flange, the clamping fingers and the mounting seat can slide relative to each other, so that the three clamping fingers can be relatively clamped and loosened, a spring-type ejector plate is arranged on the mounting seat, a plurality of spring-type ejector pins are arranged at intervals on one side of the spring-type ejector plate facing the mounting seat, and an elastic member is arranged between the spring-type ejector pins and the mounting seat; The random inspection feeding tool comprises: Feeding rack; A positioning assembly, the positioning assembly is arranged on the feeding frame, and the positioning assembly is used to position the processed parts; A driving assembly, wherein the driving assembly comprises a rodless cylinder, the rodless cylinder is arranged on the feeding frame, and the length direction of the rodless cylinder is parallel to the length direction of the feeding frame, a slider is arranged on the rodless cylinder, the slider is slidably matched with the rodless cylinder, and the slider is connected to the positioning assembly to drive the positioning assembly to work; A button box, wherein the button box is arranged on the feeder frame and a control button in the button box is electrically connected to the rodless cylinder; The positioning assembly includes a first supporting plate arranged on the sliding block, a first positioning unit is arranged on the first supporting plate, the first positioning unit includes an adjusting disk arranged on the first supporting plate and three positioning shafts for positioning the processing part, the adjusting disk is provided with three adjusting grooves of the same shape at intervals around the center position of the adjusting disk, and a rotating seat is provided between the adjusting disk and the first supporting plate, three first limiting grooves are provided on the rotating seat around the center position of the rotating seat, the three positioning shafts vertically pass through the first limiting groove and the adjusting groove, and two first limiting blocks are arranged at intervals at the bottom of each of the positioning shafts, gaps are provided between the rotating seat and the first supporting plate, and between the adjusting disk and the rotating seat, the two first limiting blocks are respectively arranged in the corresponding gaps, and a set screw passes through the center of the adjusting disk and is screwed to the rotating seat to lock the adjusting disk; A fixture quick-change fixture, the fixture quick-change fixture comprises a quick-change bracket, two support plates are arranged on the quick-change bracket in opposite relation, both support plates are provided with support grooves for supporting the quick-change lower die, and a quick-change support plate is arranged between the quick-change upper die and the connecting flange, two positioning holes are arranged on the quick-change support plate in opposite relation, positioning columns are arranged on the support plate in opposite relation, when the quick-change lower die is placed on the support plate, after the positioning columns pass through the positioning holes, the support plate supports the quick-change support plate; A parts reversing tool, the parts reversing tool comprises a reversing bracket, a fixed seat is arranged on the reversing bracket, the fixed seat and the parts reversing bracket form a cavity for placing the parts to be processed, an upper pressure plate and a lower support plate for clamping the processed parts are arranged in the cavity, and a second pushing member is arranged on the fixed seat, the second pushing member pushes the upper pressure plate to move toward the direction of the lower support plate until the upper pressure plate and the lower support plate clamp the processed parts.

2. A CNC machine tool processing automation production line, It is characterized in that include: CNC machine tools; A loading and unloading device, the loading and unloading device comprises a mechanical arm, the mechanical arm is provided with a fixture for clamping the parts to be processed and placing them on the CNC machine tool or removing the processed qualified parts from the CNC machine tool, a quick-change assembly is provided between the fixture and the mechanical arm, the quick-change assembly comprises a quick-change upper die and a quick-change lower die, the quick-change upper die is connected to the quick-change lower die, and the quick-change upper die is fixed to the mechanical arm, and the quick-change lower die is fixed to the fixture via a connecting flange; A feeding device, which is used to transfer the parts to be processed to the gripping position of the robot arm; The feeding device comprises: A loading rack, wherein a fixed guard plate and a side guard plate are arranged on the loading rack, the length direction of the fixed guard plate is parallel to the length direction of the side guard plate, and a gap for conveying shaft parts is formed between the fixed guard plate and the side guard plate; A positioning frame, the positioning frame is connected to the feeding frame, and the upper surfaces of the positioning frame and the feeding frame are both inclined surfaces, the positioning frame is provided with two guide plates opposite to each other, a gap for transmitting shaft parts is formed between the two guide plates, the positioning frame is provided with a first positioning block for positioning shaft parts, the first positioning block is provided with a first positioning groove, and the positioning frame is provided with a positioning stopper and a positioning push block opposite to each other, and the positioning stopper, the positioning push block and the first positioning groove are located on the same horizontal line, the positioning push block is provided with a first pushing member, and the first pushing member pushes the shaft parts to move in the direction of the positioning stopper; A push plate, the push plate is arranged between the feeding frame and the positioning frame, and a driving member for driving the push plate to work is arranged on the push plate; The clamp comprises a first connecting block arranged on the connecting flange, the first connecting block is provided with two bases relatively arranged on the first connecting block, and the two bases are provided with clamping blocks, and the clamping blocks are provided with clamping grooves for grabbing shaft parts, and the base is slidably matched with the first connecting block so that the two clamping blocks can be relatively clamped and loosened, and a connecting plate is provided on the first connecting block, and a sliding block is fixed on the connecting plate toward the side of the connecting flange, and a slide rail is fixed on the connecting flange, and the slide rail slidably matches with the sliding block, and fixed blocks are provided on both sides of the connecting plate, and two connecting seats are relatively arranged on the connecting flange, and an installation groove is provided on the connecting seat, and the fixing block is arranged in the installation groove and the fixing block can slide in the installation groove, and an elastic connecting piece is provided in the installation groove, and one end of the elastic connecting piece is connected to the fixing block, and the other end of the elastic connecting piece is connected to the connecting seat; The random inspection feeding tool comprises: Feeding rack; A positioning assembly, the positioning assembly is arranged on the feeding frame, and the positioning assembly is used to position the processed parts; A driving assembly, wherein the driving assembly comprises a rodless cylinder, the rodless cylinder is arranged on the feeding frame, and the length direction of the rodless cylinder is parallel to the length direction of the feeding frame, a slider is arranged on the rodless cylinder, the slider is slidably matched with the rodless cylinder, and the slider is connected to the positioning assembly to drive the positioning assembly to work; A button box, wherein the button box is arranged on the feeder frame and a control button in the button box is electrically connected to the rodless cylinder; The positioning assembly includes a second supporting plate arranged on the sliding block, a second positioning unit is arranged on the second supporting plate, the second positioning unit includes a fixing plate arranged on the second supporting plate, at least two second positioning blocks are arranged on the fixing plate, a second positioning groove is arranged on each of the second positioning blocks, two second limiting blocks are arranged relatively along the length direction of the fixing plate, and a limiting groove is arranged on the second supporting plate, a second connecting block is arranged at the bottom of the second positioning block and the second limiting block, and the second connecting block is arranged in the limiting groove and can be slidably matched with the limiting groove; A fixture quick-change fixture, the fixture quick-change fixture comprises a quick-change bracket, two support plates are arranged on the quick-change bracket in opposite relation, both support plates are provided with support grooves for supporting the quick-change lower die, and a quick-change support plate is arranged between the quick-change upper die and the connecting flange, two positioning holes are arranged on the quick-change support plate in opposite relation, positioning columns are arranged on the support plate in opposite relation, when the quick-change lower die is placed on the support plate, after the positioning columns pass through the positioning holes, the support plate supports the quick-change support plate; A parts reversing tool, the parts reversing tool comprises a reversing bracket, a fixed seat is arranged on the reversing bracket, the fixed seat and the parts reversing bracket form a cavity for placing the parts to be processed, an upper pressure plate and a lower support plate for clamping the processed parts are arranged in the cavity, and a second pushing member is arranged on the fixed seat, the second pushing member pushes the upper pressure plate to move toward the direction of the lower support plate until the upper pressure plate and the lower support plate clamp the processed parts.

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