An automatic laser welding production line for aluminum alloy doors and windows

Abstract

An automatic laser welding production line for aluminum alloy doors and windows provided by the present invention includes a feeding station, a cutting station, an assembly station, a corner pressing station, a welding station, and a discharging station. The cutting station includes a cutting device and a material taking robot. The feeding station conveys profiles to the cutting device. The assembly station includes a first conveyor line, a second conveyor line, and an assembly workbench. The cutting device cuts the profiles into two different lengths, and the material taking robot places the profiles of the two different lengths on the first conveyor line and the second conveyor line respectively. The profiles are taken on the first conveyor line and the second conveyor line and assembled into doors and windows on the assembly workbench. The corner pressing station includes a third conveyor line and a corner pressing machine. The third conveyor line realizes the conveyance of the doors and windows between the assembly workbench, the corner pressing machine, and the welding station, realizes the connection and integration between multiple stations, reduces the space occupation of the production site, facilitates the supervision of the production process, improves the production efficiency, reduces the waste of labor, and reduces the production cost.

Description

Technical Field

[0001] The present invention relates to the field of welding processing, and particularly to an automatic laser welding production line for aluminum alloy doors and windows. Background Art

[0002] Aluminum alloy doors and windows mainly consist of two short profiles, two long profiles, and corner codes connecting one end of the short profiles and the long profiles. Its production requires multiple processes, including profile cutting, profile conveying, profile trimming, assembly, welding, etc. At present, the production of aluminum alloy doors and windows is divided into two forms: fully manual and machine-assisted processing. The machine-assisted processing method can improve production efficiency and reduce labor. However, the existing door and window production equipment are discrete devices, and one device can only process one station. The equipment or labor for different stations are distributed at different positions in the production site. After one station is processed, the materials are collected and transferred to the equipment at another station for processing the next station, which occupies a large amount of production site space, increases the supervision difficulty, increases the labor force, has high production costs, and low production efficiency. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide an automatic laser welding production line for aluminum alloy doors and windows, which reduces labor waste, improves production efficiency, facilitates the management of the production process, and guarantees product quality.

[0004] To solve the above technical problems, an automatic laser welding production line for aluminum alloy doors and windows provided by the present invention is adopted, which includes a feeding station, a cutting station, an assembly station, a corner pressing station, a welding station, and a discharging station arranged in sequence. The cutting station includes a cutting device and a material taking robot. The feeding station conveys profiles to the cutting device. The assembly station includes a first conveyor line, a second conveyor line, and an assembly workbench. The cutting device cuts the profiles into two different lengths, and the material taking robot places the profiles of two different lengths on the first conveyor line and the second conveyor line respectively. The assembly station assembles the profiles of two different lengths taken from the first conveyor line and the second conveyor line on the assembly workbench into doors and windows. The corner pressing station includes a third conveyor line and a corner pressing machine. The third conveyor line realizes the conveyance of the doors and windows between the assembly workbench, the corner pressing machine, and the welding station. The cutting station also includes a notch milling device, and the material taking robot takes the cut profiles to the notch milling device to let the notch milling device perform notch milling operations on the cut surfaces of the profiles. The feeding station includes a profile shelf and a feeding device. The feeding device includes a discharging mechanism and a feeding mechanism. The discharging mechanism includes a first support frame and a number of fourth conveyor lines arranged side by side along the length direction of the first support frame at the top of the first support frame. A number of guiding rollers are rotatably connected side by side along the length direction on one side of the first support frame. A number of material handling mechanisms are arranged side by side along the length direction on the first support frame. The material handling mechanisms place the profiles on the fourth conveyor lines between a number of guiding rollers. The feeding mechanism includes a second support frame and a feeding manipulator. The feeding manipulator conveys the profiles on the guiding rollers to the cutting device. A milling surface station, a grinding station, and a drilling station are also arranged in sequence between the welding station and the discharging station. One end of the third conveyor line is connected to a fifth conveyor line. The welding station includes a first flipping mechanism arranged on the fifth conveyor line and a welding robot arranged on one side of the fifth conveyor line. The grinding station includes a second flipping mechanism arranged on the fifth conveyor line and a grinding robot arranged on one side of the fifth conveyor line. The discharging station includes a stacking pallet arranged on one side of the end of the fifth conveyor line and a discharging robot arranged on one side of the fifth conveyor line. The feeding manipulator includes an X-axis linear driving device arranged along the second support frame, an X-axis sliding seat drivingly connected to the X-axis linear driving device, a lifting cylinder arranged on the X-axis sliding seat, and a pneumatic claw drivingly connected to the lifting cylinder. The material handling mechanism includes a Y-axis sliding seat arranged on the first support frame, a Y-axis sliding block slidably connected to the Y-axis sliding seat, a Y-axis cylinder arranged on the Y-axis sliding seat and drivingly connected to the Y-axis sliding block, a Z-axis cylinder arranged on the Y-axis sliding block, and a top plate drivingly connected to the Z-axis cylinder.

[0005] Preferably, the cutting device includes a first cutting machine, a second cutting machine, and a pressing mechanism. When the loading manipulator transports the profile to the cutting device, the pressing mechanism presses the profile, and the first cutting machine and the second cutting machine respectively cut both ends of the profile; the notch milling device includes a workbench and a notch milling machine. Along the length direction of the workbench, a number of positioning mechanisms are arranged in parallel. On one side of the top of the workbench, a baffle corresponding to the positioning mechanism is provided. When the material taking robot takes the cut profile from the cutting device and places it on the workbench, the positioning mechanism presses the profile against the inner side of the baffle for positioning.

[0006] Preferably, both the first flipping mechanism and the second flipping mechanism include flipping devices respectively arranged on both sides of the fifth conveying line. The flipping device includes a lifting driving mechanism, a rotary driving device that can move up and down under the drive of the lifting driving mechanism, and a clamping module. The clamping module includes a backing plate drivingly connected to the rotary driving device, and clamping components arranged at both ends of the backing plate. The clamping component includes a clamping cylinder arranged on the backing plate, and an L-shaped clamping plate drivingly connected to the clamping cylinder.

[0007] Preferably, an appearance inspection station is also arranged between the cutting station and the assembly station.

[0008] The beneficial effects of the present invention are as follows: The present invention provides an automatic laser welding production line for aluminum alloy doors and windows, integrating the loading station, cutting station, assembly station, corner pressing station, welding station, and discharging station into a complete production line. The profile is transported to the cutting device through the loading station, and then the cutting device cuts the profile into the required short profiles and long profiles. The material taking robot places the short profiles and long profiles on the first conveying line and the second conveying line respectively. Workers take the two types of profiles on the first conveying line and the second conveying line to the assembly workbench and assemble them into doors and windows using corner codes. Then, the workers place the doors and windows on the third conveying line, and the corner pressing machine performs corner pressing processing on the four sides of the doors and windows. Then, the welding station performs welding processing on the doors and windows. The welded doors and windows are unloaded by the discharging station, realizing the connection and integration between multiple stations, reducing the space occupation of the production site, facilitating the supervision of the production process, improving production efficiency, reducing labor waste, and lowering production costs. Description of the Drawings

[0009] Figure 1 Illustrates the external structure schematic diagram of the present invention.

[0010] Figure 2 Illustrates the top view of the present invention.

[0011] Figure 3 Illustrates the present invention Figure 1 Partial enlarged structure schematic diagram of part A in the present invention.

[0012] Figure 4 Illustrates the present invention Figure 1Schematic diagram of the partial enlarged structure of part B.

[0013] Figure 5 Illustrates the present invention Figure 1 Schematic diagram of the partial enlarged structure of part C.

[0014] Figure 6 Illustrates the present invention Figure 1 Schematic diagram of the partial enlarged structure of part D.

[0015] Figure 7 Illustrates the present invention Figure 1 Schematic diagram of the partial enlarged structure of part E.

[0016] Figure 8 Schematic diagram of the structure of the material handling mechanism of the present invention.

[0017] Explanation of the reference numerals in the drawings: Loading station 10, Profile rack 11, Loading device 12, First support frame 13, Fourth conveyor line 130, Guide roller 131, Material handling mechanism 14, Second support frame 15, Loading manipulator 16, X-axis linear drive device 160, X-axis slide 161, Lifting cylinder 162, Air gripper 163, Y-axis slide 164, Y-axis slider 165, Y-axis cylinder 166, Z-axis cylinder 167, Top plate 168, Cutting station 20, Cutting device 21, First cutting machine 210, Second cutting machine 211, Pressing mechanism 212, Material taking robot 22, Notch milling device 23, Workbench 230, Notch milling machine 231, Positioning mechanism 232, Baffle 233, Assembly station 30, First conveyor line 31, Second conveyor line 32, Assembly workbench 33, Appearance inspection station 34, Corner pressing station 40, Third conveyor line 41, Corner pressing machine 42, Welding station 50, Fifth conveyor line 51, First flipping mechanism 52, Flipping device 520, Lifting drive mechanism 521, Rotary drive device 522, Cushion plate 523, Clamping cylinder 524, L-shaped clamping plate 525, Welding robot 53, Discharging station 60, Stacking pallet 61, Unloading robot 62, Milling surface station 70, Grinding station 80, Second flipping mechanism 81, Grinding robot 82, Drilling station 90. Detailed implementation manners

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure.

[0019] All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0020] Reference Figures 1-8 。

[0021] The present invention provides an automatic laser welding production line for aluminum alloy doors and windows, which includes a loading station 10, a cutting station 20, an assembly station 30, a corner pressing station 40, a welding station 50, and an unloading station 60 arranged in sequence. The cutting station 20 includes a cutting device 21 and a material taking robot 22. The loading station 10 conveys profiles to the cutting device 21. The assembly station 30 includes a first conveyor line 31, a second conveyor line 32, and an assembly workbench 33. The cutting device 21 cuts the profiles into two different lengths, and the material taking robot 22 places the profiles of the two different lengths on the first conveyor line 31 and the second conveyor line 32 respectively. The assembly station 30 assembles the profiles of the two different lengths into doors and windows on the assembly workbench 33 by taking them from the first conveyor line 31 and the second conveyor line 32. The corner pressing station 40 includes a third conveyor line 41 and a corner pressing machine 42. The third conveyor line 41 realizes the conveyance of the doors and windows between the assembly workbench 33, the corner pressing machine 42, and the welding station 50.

[0022] Its working principle is as follows: The loading station 10, the cutting station 20, the assembly station 30, the corner pressing station 40, the welding station 50, and the unloading station 60 are integrated into a complete production line. The loading station 10 conveys profiles to the cutting device 21, and then the cutting device 21 cuts the profiles into the required short profiles and long profiles. The material taking robot 22 places the cut short profiles and long profiles on the first conveyor line 31 and the second conveyor line 32 respectively for conveyance. Workers take the two cut profiles on the first conveyor line 31 and the second conveyor line 32 and place them on the assembly workbench 33 and assemble them into doors and windows using corner codes. Then, the workers place the assembled doors and windows on the third conveyor line 41 for conveyance, and the corner pressing machine 42 performs corner pressing processing on the four sides of the doors and windows on the third conveyor line 41 to fix the short profiles and long profiles. When the doors and windows are conveyed to the welding station 50, the welding station 50 performs welding processing on the doors and windows. The welded doors and windows are then unloaded by the unloading station 60, realizing the connection and integration between multiple stations, reducing the space occupation of the production site, facilitating the supervision of the production process, improving production efficiency, reducing labor waste, and lowering production costs.

[0023] Based on the above embodiment, the cutting station 20 further includes a notch milling device 23. The material taking robot 22 takes the cut profiles to the notch milling device 23 to let the notch milling device 23 perform notch milling operations on the cut surfaces of the profiles. Specifically, after the cutting device 21 finishes cutting the profiles, the material taking robot 22 takes the cut profiles to the notch milling device 23 to let the notch milling device 23 perform notch milling operations on the notches of the cut ends of the profiles. After the notch milling processing is completed, the material taking robot 22 then places the short profiles and long profiles on the first conveyor line 31 and the second conveyor line 32 respectively.

[0024] Based on the above embodiments, the loading station 10 includes a profile rack 11 and a loading device 12. The loading device 12 includes a discharging mechanism and a feeding mechanism. The discharging mechanism includes a first support frame 13 and a plurality of fourth conveyor lines 130 arranged in parallel along the length direction of the first support frame 13 at the top of the first support frame 13. A plurality of guiding rollers 131 are rotatably connected in parallel along one side of the first support frame 13 in its length direction. A plurality of material handling mechanisms 14 are arranged in parallel along the length direction of the first support frame 13. The material handling mechanisms 14 place the profiles on the fourth conveyor lines 130 between the plurality of guiding rollers 131. The feeding mechanism includes a second support frame 15 and a loading manipulator 16. The loading manipulator 16 conveys the profiles on the guiding rollers 131 to the cutting device 21. Specifically, the profile incoming materials are placed on the profile rack 11 for standby. During loading, the worker places the profile incoming materials between the respective fourth conveyor lines 130, and the adjacent profile incoming materials are placed at intervals on the fourth conveyor lines 130. When the fourth conveyor lines 130 work, they can drive the profile incoming materials to move towards the side of the guiding rollers 131. The material handling mechanisms 14 can move the foremost profile incoming materials onto the respective guiding rollers 131. The loading manipulator 16 grabs the profile incoming materials placed on the guiding rollers 131 and linearly moves them along the guiding rollers 131 towards the cutting station 20 side, thereby realizing the loading of materials.

[0025] As another embodiment, a milling station 70, a grinding station 80, and a drilling station 90 are sequentially arranged between the welding station 50 and the discharging station 60. After the window and door are welded, the milling process of the welding joint, the grinding process of the welding joint, and the drilling process of the window and door can be sequentially completed according to production requirements. Of course, other stations can also be added as needed.

[0026] Based on the above embodiments, one end of the third conveyor line 41 is connected to the fifth conveyor line 51. The welding station 50 includes a first flipping mechanism 52 disposed on the fifth conveyor line 51 and a welding robot 53 disposed on one side of the fifth conveyor line 51. The grinding station 80 includes a second flipping mechanism 81 disposed on the fifth conveyor line 51 and a grinding robot 82 disposed on one side of the fifth conveyor line 51. The discharging station 60 includes a stacking pallet 61 disposed on one side of the end of the fifth conveyor line 51 and a discharging robot 62 disposed on one side of the fifth conveyor line 51. Specifically, when the doors and windows are conveyed to the welding station 50, the doors and windows will flow from the third conveyor line 41 onto the fifth conveyor line 51. At this time, the welding robot 53 performs welding operations on the upper surface side of the doors and windows. After one side is welded, the first flipping mechanism 52 flips the doors and windows by 180°, and then the welding robot 53 performs welding operations on the lower surface side of the doors and windows. After welding is completed, the doors and windows are conveyed by the fifth conveyor line 51 to the grinding station 80, and then the grinding robot 82 performs grinding operations on the upper surface side of the doors and windows. After one side is ground, the second flipping mechanism 81 flips the doors and windows by 180°, and then the grinding robot 82 performs grinding operations on the lower surface side of the doors and windows. The processed doors and windows will be picked up by the discharging robot 62 from the fifth conveyor line 51 and placed on the stacking pallet 61 for stacking.

[0027] Based on the above embodiments, the cutting device 21 includes a first cutting machine 210, a second cutting machine 211, and a pressing mechanism 212. When the loading manipulator 16 conveys the profile to the cutting device 21, the pressing mechanism 212 presses the profile, and the first cutting machine 210 and the second cutting machine 211 respectively cut both ends of the profile; the milling notch device 23 includes a workbench 230 and a milling notch machine 231. Along the length direction of the workbench 230, a plurality of positioning mechanisms 232 are arranged in parallel, and a baffle 233 corresponding to the positioning mechanisms 232 is arranged on one side of the top of the workbench 230. When the picking robot 22 picks up the cut profile from the cutting device 21 and places it on the workbench 230, the positioning mechanisms 232 press the profile against the inner side of the baffle 233 for positioning. Specifically, when the loading manipulator 16 conveys the profile incoming material to the cutting device 21, the pressing mechanism 212 presses the profile incoming material. First, the first cutting machine 210 obliquely cuts one end of the profile incoming material, and then the second cutting machine 211 obliquely cuts the other end of the profile incoming material. After the profile is cut, the picking robot 22 places the profile on the workbench 230, and then each positioning mechanism 232 pushes the whole profile to the side of the baffle 233 so that the profile abuts against the baffle 233 for positioning. Then, the milling notch machine 231 performs milling notch operations on the cutting surface of the profile. After the milling notch processing is completed, the picking robot 22 picks up the profile with the milling notch completed and places it on the first conveyor line 31 or the second conveyor line 32.

[0028] Based on the above embodiments, both the first flipping mechanism 52 and the second flipping mechanism 81 include flipping devices 520 respectively arranged on both sides of the fifth conveyor line 51. The flipping device 520 includes a lifting drive mechanism 521, a rotary drive device 522 that can move up and down under the drive of the lifting drive mechanism 521, and a clamping module. The clamping module includes a backing plate 523 drivingly connected to the rotary drive device 522, and clamping components arranged at both ends of the backing plate 523. The clamping components include a clamping cylinder 524 arranged on the backing plate 523, and an L-shaped clamping plate 525 drivingly connected to the clamping cylinder 524. Specifically, when welding the doors and windows, the clamping cylinders 524 of the two opposite flipping devices 520 drive their L-shaped clamping plates 525 to simultaneously abut against both end faces of the doors and windows, thereby clamping the doors and windows. At this time, welding processing can be performed on the upper surface of the doors and windows. After welding one side, the lifting drive mechanism 521 drives the rotary drive device 522 to rise to drive the doors and windows to rise, and then the rotary drive device 522 drives the doors and windows to flip 180°. Then the lifting drive mechanism 521 drives the doors and windows to descend to place the doors and windows on the fifth conveyor line 51. At this time, welding processing can be performed on the lower surface of the doors and windows; during grinding processing, the second flipping mechanism 81 also drives the doors and windows to flip, so that the grinding robot 82 can grind both surfaces of the doors and windows.

[0029] Based on the above embodiments, the loading manipulator 16 includes an X-axis linear driving device 160 arranged along the second support frame 15, an X-axis sliding seat 161 drivingly connected to the X-axis linear driving device 160, a lifting cylinder 162 arranged on the X-axis sliding seat 161, and a gripper 163 drivingly connected to the lifting cylinder 162; the material handling mechanism 14 includes a Y-axis sliding seat 164 arranged on the first support frame 13, a Y-axis sliding block 165 slidably connected to the Y-axis sliding seat 164, a Y-axis cylinder 166 arranged on the Y-axis sliding seat 164 and drivingly connected to the Y-axis sliding block 165, a Z-axis cylinder 167 arranged on the Y-axis sliding block 165, and a top plate 168 drivingly connected to the Z-axis cylinder 167. Specifically, when moving the profile material incoming at the forefront of the fourth conveyor line 130 onto the guiding rollers 131, the profile material incoming will be directly above the top plate 168. First, the Z-axis cylinder 167 drives the top plate 168 to rise to lift the profile material incoming, then the Y-axis cylinder 166 drives the Y-axis sliding block 165 to move along the Y-axis sliding seat 164, so that the profile material incoming moves above the guiding rollers 131, and then the Z-axis cylinder 167 drives the top plate 168 to descend to place the profile material incoming on the guiding rollers 131. At this time, the gripper 163 will be above the profile material incoming, and the lifting cylinder 162 drives the gripper 163 to descend to grasp the profile material incoming, and then the X-axis linear driving device 160 drives the X-axis sliding seat 161 to move towards the cutting station 20 side, so that the profile material incoming is conveyed towards the cutting station 20 side along each guiding roller 131, and then the loading manipulator 16 conveys the profile material incoming to the cutting device 21.

[0030] As another embodiment, an appearance inspection station 34 is further arranged between the cutting station 20 and the assembly station 30, which can perform appearance confirmation on the profiles after cutting and milling notch operations. After passing the appearance inspection, they will flow to the assembly station 30 for assembling doors and windows.

[0031] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary engineering and technical personnel in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic laser welding production line for aluminum alloy doors and windows, characterized in that, It includes a loading station, a cutting station, an assembly station, a corner pressing station, a welding station, and an unloading station arranged in sequence. The cutting station includes a cutting device and a material taking robot. The loading station conveys profiles to the cutting device. The assembly station includes a first conveyor line, a second conveyor line, and an assembly workbench. The cutting device cuts the profiles into two different lengths. The material taking robot places the profiles of the two different lengths on the first conveyor line and the second conveyor line respectively. The assembly station assembles the profiles of the two different lengths on the assembly workbench into doors and windows by taking them on the first conveyor line and the second conveyor line. The corner pressing station includes a third conveyor line and a corner pressing machine. The third conveyor line realizes the conveyance of the doors and windows between the assembly workbench, the corner pressing machine, and the welding station. The cutting station also includes a notch milling device. The material taking robot takes the cut profiles to the notch milling device to let the notch milling device perform notch milling operations on the cut surfaces of the profiles. The loading station includes a profile shelf and a loading device. The loading device includes a discharging mechanism and a feeding mechanism. The discharging mechanism includes a first support frame and a plurality of fourth conveyor lines arranged side by side along the length direction of the first support frame at the top of the first support frame. A plurality of guiding rollers are rotatably connected in parallel along the length direction on one side of the first support frame. A plurality of material handling mechanisms are arranged in parallel along the length direction on the first support frame. The material handling mechanisms place the profiles on the fourth conveyor lines between the plurality of guiding rollers. The feeding mechanism includes a second support frame and a loading manipulator. The loading manipulator conveys the profiles on the guiding rollers to the cutting device. A milling surface station, a grinding station, and a drilling station are also arranged in sequence between the welding station and the unloading station. One end of the third conveyor line is connected to a fifth conveyor line. The welding station includes a first flipping mechanism arranged on the fifth conveyor line and a welding robot arranged on one side of the fifth conveyor line. The grinding station includes a second flipping mechanism arranged on the fifth conveyor line and a grinding robot arranged on one side of the fifth conveyor line. The unloading station includes a stacking pallet arranged on one side at the end of the fifth conveyor line and an unloading robot arranged on one side of the fifth conveyor line. The loading manipulator includes an X-axis linear driving device arranged along the second support frame, an X-axis sliding seat drivingly connected to the X-axis linear driving device, a lifting cylinder arranged on the X-axis sliding seat, and a pneumatic claw drivingly connected to the lifting cylinder. The material handling mechanism includes a Y-axis sliding seat arranged on the first support frame, a Y-axis sliding block slidably connected to the Y-axis sliding seat, a Y-axis cylinder arranged on the Y-axis sliding seat and drivingly connected to the Y-axis sliding block, a Z-axis cylinder arranged on the Y-axis sliding block, and a top plate drivingly connected to the Z-axis cylinder.

2. The automatic laser welding production line for aluminum alloy doors and windows according to claim 1, characterized in that The cutting device includes a first cutting machine, a second cutting machine, and a pressing mechanism. When the loading manipulator conveys the profile to the cutting device, the pressing mechanism presses the profile, and the first cutting machine and the second cutting machine respectively cut both ends of the profile; the notch milling device includes a workbench and a notch milling machine. A plurality of positioning mechanisms are arranged in parallel along the length direction of the workbench, and a baffle corresponding to the positioning mechanism is arranged on one side of the top of the workbench. When the picking robot picks up the cut profile from the cutting device and places it on the workbench, the positioning mechanism presses the profile against the inner side of the baffle for positioning.

3. An automatic laser welding production line for aluminum alloy doors and windows according to claim 2, characterized in that The first flipping mechanism and the second flipping mechanism both include flipping devices respectively arranged on both sides of the fifth conveyor line. The flipping device includes a lifting drive mechanism, a rotary drive device that can move up and down under the drive of the lifting drive mechanism, and a clamping module. The clamping module includes a backing plate drivingly connected to the rotary drive device, and clamping components arranged at both ends of the backing plate. The clamping component includes a clamping cylinder arranged on the backing plate and an L-shaped clamping plate drivingly connected to the clamping cylinder.

4. An automatic laser welding production line for aluminum alloy doors and windows according to claim 3, characterized in that, An appearance inspection station is also arranged between the cutting station and the assembly station.

Images