An automated production line for the assembly of automobile central channel assembly buckles

Abstract

The present invention discloses an automated production line for assembling snap fasteners for a central channel assembly of an automobile, which is used to assemble a number of snap fasteners and square fasteners on both sides of the central channel. The production line includes a position-shifting workbench located in the middle, the position-shifting workbench being circumferentially divided into six workstations. The position-shifting workbench is movably equipped with a workpiece positioning tool for limiting and clamping the central channel of the automobile. A workpiece loading and unloading clamp is provided on the side of the first workstation, and a six-axis manipulator for assembling the snap fastener is provided on the side of each of the other five workstations. A snap fastener feeding device is placed on the adjacent side of each of the six-axis manipulators. A loading and unloading workbench is further provided at the far end of the first workstation, and the loading and unloading clamp is used to achieve interactive clamping of the automobile central channel on the position-shifting workbench and the first workstation. The present invention adopts the design of a six-station position-shifting workbench, and the tooling of each workstation can rotate around an axis at any angle. In conjunction with the six-axis manipulator, the workpiece position requirements for the installation of snap fasteners of most automobile central channel assemblies can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts assembly automation, in particular to an automobile central channel assembly buckle assembly automation production line. Background Art

[0002] With the development of economy, cars have become an indispensable means of transportation in people's daily life. The central tunnel of a car is an important part of the car, usually located between the main driver's seat and the co-pilot seat, with multiple functions such as load bearing, air conduction, temperature control, etc. The various parts of the central tunnel of a car are often connected by buckles. Due to the large size of the central tunnel assembly, please refer to Figure 4 , requiring the installation of numerous clips (up to 82) of various types, including clips and square clips. Currently, the assembly of clips in automotive center channel assemblies is mostly done manually on assembly lines, resulting in low production efficiency, prone to missed components, and difficulty in production management. Furthermore, labor costs are high and the workload is demanding, making it difficult to meet the automotive industry's requirements for rapid, high-quality, and low-cost production.

[0003] This case was created to solve the above problems. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides an automated production line for the assembly of automobile central channel assembly buckles, which solves the problem that the current assembly of automobile central channel assembly buckles mostly adopts manual assembly lines, which has low production efficiency, easy assembly omissions, and difficulty in production management. In addition, the labor input cost is high, the workers' workload is high, and it is difficult to meet the fast, high-quality, and low-cost production requirements in the automotive field.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated production line for assembling clips of an automobile central channel assembly, which is used to assemble a number of clips and square clips on both sides of the central channel, including a displacement workbench located in the middle, the displacement workbench is circumferentially divided into six workstations, the displacement workbench is movably equipped with a workpiece positioning tooling for limiting and clamping the automobile central channel, a workpiece loading and unloading clamp is provided on the side of the first workstation, and a six-axis manipulator for assembling clips is provided on the sides of the other five workstations, and a clip feeding device is respectively placed on the adjacent sides of each six-axis manipulator, wherein a unloading workbench is further provided at the far end of the first workstation, and the interactive clamping of the automobile central channel on the displacement workbench and the first workstation is realized by the loading and unloading clamps.

[0008] As a preferred solution, further, the workpiece loading and unloading clamp is fixed to the six-axis manipulator through a connecting flange, which includes a support, and pneumatic fingers are respectively provided on both sides of the support, and two pairs of POM blocks are respectively provided at the pneumatic fingers. After the six-axis manipulator drives the workpiece loading and unloading clamp to the top of the car's central channel, the pneumatic fingers shrink and drive the POM blocks to clamp the car's central channel accordingly. A photoelectric sensor is also provided on the support to detect whether the workpiece loading and unloading clamp has clamped the workpiece.

[0009] As a preferred solution, further, the workpiece positioning tooling includes a connecting plate, a workpiece positioning membrane is provided in the middle of the connecting plate, side clamps are respectively provided on the front and rear sides, a clamping mechanism is provided on the left side, and a limiting pressure block is provided on the opposite side, wherein the side clamps are composed of a pair of pneumatic fingers and splints, and the clamping mechanism is composed of a pair of spinning cylinders and a clamping plate to drive the clamping plate to rotate and adjust the limiting position to adapt to the shape of the workpiece, and the limiting pressure block is composed of a pushing cylinder and a pressure block, and the output displacement trajectory of the limiting pressure block is inclined downward to adapt to the shape of the workpiece.

[0010] As a preferred solution, further, the displacement workbench includes a fixed part, a rotatable work table, and six rotatable workstations, the fixed part is composed of a mounting base and a cam divider, and the cam divider is fixed on the mounting base; the rotatable work table is connected to the cam divider by bolts, and the rotatable workstation includes a tooling support frame, and the tooling support frame has a left tooling support plate and a follower tooling support plate that are driven to rotate by a servo motor at intervals on both sides, and the workpiece positioning tooling is limited and fixed on the tooling support frame, and the workpiece positioning tooling fixes the central channel of the car and then rotates it to its assembly side, and the displacement workbench rotates 60° to drive the central channel of the car to the first snap assembly station for snap assembly.

[0011] As a preferred embodiment, the buckle feeding equipment further includes a feeding device and a buckle swing plate connected to each other, wherein the feeding device includes a storage bin, a vibrating plate placed on the discharge side of the discharging bin, a straight vibration guide rail track is provided at the outlet of the vibrating plate, a guide rail cover is provided on the straight vibration guide rail track, a buckle blocking block is provided at the front end of the connection between the straight vibration guide rail track and the buckle swing plate to limit the buckles from being exported one by one, a swing plate displacement device is provided at the bottom of the buckle swing plate, each time the buckle is received, it is pushed close to the straight vibration guide rail track by the bottom cylinder, and is quickly recovered after receiving, the buckle swing plate includes a disc, the circumference of the disc is evenly divided with notches, the bottom of the notch is provided with a groove, and a strong magnet is embedded in the groove to assist the buckle to enter the notch on the disc.

[0012] As a preferred solution, further, the width of the straight vibration guide rail track is wider than the buckle, the width of the gap between the guide rail cover and the straight vibration guide rail track is slightly larger than the thickness of the buckle, and the straight vibration guide rail track and the guide rail cover limit the buckles to be arranged one by one and in a row through the track.

[0013] As a preferred solution, further, a small through hole is opened on the front half of the straight vibration guide rail, and a fiber optic sensor is provided on the lower side. The light of the fiber optic sensor passes through the guide rail through the through hole to detect whether there is a buckle passing through; a buckle proximity sensor is provided at the bottom of the slot, and the buckle proximity sensor generates an induction signal. After the PLC determines that the buckle enters the slot, the disc rotates a preset angle so that the next slot of the disc is aligned with the track port, and then the above process is repeated.

[0014] As a preferred solution, further, an anti-jamming device is provided on the straight vibration guide rail, and the anti-jamming device includes a support frame arranged along the direction of the straight vibration guide rail, a pen-shaped cylinder is provided at the end of the support frame 1, and a push block is provided at the output end of the pen-shaped cylinder, and a guide plate is provided at the front end of the support frame, and guide grooves are provided on both sides of the guide plate; sliding bearings are installed at both ends of the horizontal axis on both sides of the push block, and the two bearings are respectively placed in the guide grooves of the guide plate, and the connecting end of the push block is connected to an L-shaped push block, the bottom of which extends into the extension parts on both inner sides of the V-shaped mouth of the buckle when it is tilted downward, and then a force (F) is applied to drive the entire buckle to move forward, wherein the width of the push block is smaller than the middle size of the V-shaped mouth, and thus can extend into the V-shaped mouth, and the force application position is relative to the middle position of the buckle.

[0015] As a preferred solution, further, a detection device is provided on the side of the six-axis manipulator of the sixth station, and the detection device includes a support frame, a linear module, and a detection mechanism, wherein the linear module is composed of a servo motor, a linear guide rail, a connecting plate, and four quick-change hooks. The linear guide connecting plate is connected to the detection mechanism, and four quick-change hooks are provided on the connecting plate to realize rapid replacement of the detection mechanism. The mechanism is opposite to the detection station and is in the same vertical plane as the workpiece positioning tooling on the detection station.

[0016] As a preferred solution, further, the unloading workbench includes a fixed base, a turntable is provided on the fixed base, the output end of the turntable is connected to a unloading tooling plate, the unloading tooling plate is provided with a workpiece profiling support POM block and a square buckle assembly device, the square buckle assembly device includes a square buckle assembly cylinder, the output end of the square buckle assembly cylinder is connected to a square buckle pressing block, wherein the square buckle pressing block contains a magnet, and the magnet is used to fix the square buckle on the pressing block, the six-axis manipulator places the workpiece on the workpiece profiling support POM block through the workpiece loading and unloading clamps, the square buckle assembly device presses the square buckle horizontally into the position corresponding to the central channel of the car, and the unloading workbench rotates 180° and the central channel of the car is removed manually.

[0017] (3) Beneficial effects

[0018] After adopting the above technical solution, the present invention provides an automated production line for assembling snap-on parts of a central channel assembly of an automobile, which has the following beneficial effects compared with the prior art:

[0019] 1. The six-station adjustable workbench design allows each station's tooling to rotate at any angle around its axis. Combined with a six-axis manipulator, it can meet the workpiece positioning requirements for snap-on installation of most automotive center tunnel assemblies. Furthermore, the proposed production line includes multiple quickly interchangeable tooling, including inspection equipment, blanking tooling, and assembly tooling. Changing the center tunnel assembly type requires only the replacement of the corresponding tooling, effectively enhancing the production line's overall flexibility.

[0020] 2. The straight vibration guide rail on the buckle feeding equipment is equipped with a guide rail cover. The front end of the straight vibration guide rail and the buckle swing plate is connected with a buckle blocking block to limit the buckles from being exported one by one. At the same time, it is connected with an anti-stuck device. The output push block is L-shaped. The bottom of the push block just extends under the extended part on both inner sides of the V-shaped mouth of the buckle when it is pushed downward, and then applies force (F) to drive the entire buckle to move steadily and horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the automobile central channel assembly buckle assembly production line of the present invention;

[0022] Figure 2 This is a schematic structural diagram of the workpiece loading and unloading clamp of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the workpiece positioning tool;

[0024] Figure 4 This is a schematic diagram of a workpiece being fixed on a tooling;

[0025] Figure 5 It is a three-dimensional schematic diagram of the workpiece positioning tooling;

[0026] Figure 6 It is a structural diagram of the displacement workbench;

[0027] Figure 7 This is a structural diagram of the buckle feeding equipment;

[0028] Figure 8 This is a schematic diagram of a buckle tray;

[0029] Figure 9 This is a schematic diagram of the anti-stuck device;

[0030] Figure 10 It is a structural schematic diagram of the detection device;

[0031] Figure 11 It is a structural diagram of the blanking workbench;

[0032] Figure 12 This is a schematic diagram of the installation position of the square buckle on the blanking workbench;

[0033] Figure 13 Schematic diagram of the workpiece structure;

[0034] Figure 14 Schematic diagram of the buckle;

[0035] Figure 15 This is a schematic diagram of a square buckle.

[0036] In the figure, the workpiece loading and unloading clamp 1; pneumatic finger 1-1; POM block 1-2; connecting flange 1-3; photoelectric sensor 1-4; snap feeding device 2; feeding device 2-1; storage bin 2-1-1; vibration plate 2-1-2; linear vibration guide rail 2-1-3; guide rail cover 2-1-4; fiber optic sensor 2-1-5; snap stop block 2-1-6; three-way adjustment bracket 2-1-7; snap wobble plate 2-2; disc 2-2-1; strong magnet 2-2-2; snap proximity sensor 2-2-3; wobble plate displacement device 2-2-4; anti-jamming device 2-3; support frame 2-3-1; guide plate 2-3-2; pen-shaped cylinder 2-3-3; pusher block 2-3-4; connecting plate 2-3-5; workpiece positioning fixture 3; workpiece positioning membrane 3-1; side clamping claw 3-2; clamping mechanism 3-3; handle 3-4; fixture positioning hole 3-5; limit pressure block 3-6; displacement workbench 4; fixed part 4-1; mounting base 4-1-1; cam divider 4-1-2; rotatable worktable surface 4-2; displacement workbench frame 4-2-1; replaceable Station bracket 4-2-2; rotatable station 4-3; left tool support plate 4-3-1; follower tool support plate 4-3-2; tool support frame 4-3-3; support frame positioning hole 4-3-3-1; main control cabinet 5; detection device 6; support frame 6-1; linear module 6-2; servo motor 6-2-1; linear guide 6-2-2; connecting plate 6-2-3; quick-change hook 6-2-4; detection mechanism 6-3; circuit mounting plate 6-3-1; remote module 6-3-2; cylinder 6-3-3; proximity sensor 6-3 -4; sensor mounting side plate 6-3-5; unloading workbench 7; fixed base 7-1; mounting base 7-1-1; cam divider 7-1-2; safety partition 7-1-3; turntable 7-2; unloading tooling plate 7-3; workpiece contour support POM block 7-3-1; square buckle assembly device 7-3-2; square buckle assembly cylinder 7-3-2-1; square buckle pressing block 7-3-2-2; handle 7-3-3; six-axis manipulator 8; buckle removal mechanism 8-2; wire trough 8-3; buckle 8-5; square buckle 8-6; workpiece 9. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0038] An automated production line for assembling buckles for automobile central channel assemblies, including automatic workpiece grabbing, automatic buckle material collection and assembly, automatic testing, and automatic unloading. Figure 13 The assembly requirements are: by setting up 5 buckle assembly stations, assemble the buckles 8-5 in sequence at the corresponding positions on the side of the workpiece 9 (the workpiece 9 in the whole article is the central channel of the car), and through the square buckle assembly device 7-3-2 on the blanking workbench 7, assemble 2 square buckles 8-6 on both sides of the bottom of the workpiece 9 respectively.

[0039] Figure 1 This is a schematic diagram of the automobile central channel assembly buckle assembly line. The overall production line mainly includes workpiece loading and unloading clamps 1 (one station), buckle feeding equipment 2, workpiece positioning tooling 3, position adjustment workbench 4, main control cabinet 5, detection device 6, unloading workbench 7, six-axis manipulator 8 (six-axis manipulator 8-1-1 on the second station, six-axis manipulator 8-1-2 on the third station, six-axis manipulator 8-1-3 on the fourth station, six-axis manipulator 8-1-4 on the fifth station, six-axis manipulator 8-1-5 on the sixth station), buckle removal mechanism 8-2, wire trough 8-3, workpiece 9, buckle 8-5, square buckle 8-6, etc. Each device is powered by the main control cabinet 5. The overall layout is as follows Figure 1 shown.

[0040] Figure 2 It is a structural diagram of the workpiece loading and unloading clamp 1. Figure 2 As shown, the workpiece loading and unloading gripper 1 comprises two pneumatic fingers 1-1, two pairs of POM blocks 1-2, a connecting flange 1-3, and a photoelectric sensor 1-4. The workpiece loading and unloading gripper 1 is secured to the six-axis manipulator 8-1 via the connecting flange 1-3. After the six-axis manipulator 8-1 drives the workpiece loading and unloading gripper 1 over the workpiece 9, the pneumatic fingers 1-1 retract, driving the POM blocks 1-2 to clamp the workpiece 9. The POM blocks prevent the gripper from scratching the workpiece 9 during the gripping process. The photoelectric sensor 1-4 detects whether the workpiece loading and unloading gripper 1 has grasped the workpiece 9. After grasping the workpiece 9, the workpiece loading and unloading gripper 1 places it into the workpiece positioning fixture 3.

[0041] Figure 3-5This is a structural diagram of the workpiece positioning tool 3, which consists of a connecting plate (the entire supporting tool plate), a workpiece positioning membrane 3-1, a side clamp 3-2, a clamping mechanism 3-3, a handle 3-4, a tool positioning hole 3-5, and a limiting pressure block 3-6. The side clamp 3-2 consists of a pair of pneumatic fingers and a clamping plate, the clamping mechanism 3-3 consists of a pair of spinning cylinders and a clamping plate, and the limiting pressure block 3-6 consists of a pushing cylinder and a pressure block. The output displacement trajectory of the limiting pressure block 3-6 is inclined downward to adapt to the shape of the workpiece 9. Finally, the workpiece positioning tool forms a clamping limit on both sides and the front and back of the workpiece 9.

[0042] The six-axis manipulator 8-1 places the workpiece 9 on the workpiece positioning membrane 3-1 through the workpiece loading and unloading clamp 1. The workpiece positioning membrane 3-1 is made of plastic to prevent the workpiece 9 from being scratched or damaged during the placement process. Two photoelectric sensors (not shown in the figure) are provided on the bottom plate of the workpiece positioning fixture 3 to detect whether there is a workpiece 9 on the workpiece positioning fixture 3. After placement, the side clamp 3-2 and the clamping mechanism 3-3 first clamp the workpiece 9 to reduce the displacement of the workpiece 9 during the snap-fit ​​assembly process. The workpiece positioning fixture 3 is mounted on the fixture support frame 4-3-3 (see Appendix) by bolts. Figure 6 ) on the workpiece. During installation, insert the quick pin into the tooling positioning hole and the support frame positioning hole 4-3-3-1 to quickly install and position the tooling plate. Handle 3-4 facilitates the replacement of the tooling plate. The design of the replaceable tooling plate improves the adaptability of the entire production line. Figure 4 Schematic diagram of the workpiece fixed on the tooling.

[0043] Figure 6This is a schematic diagram of the structure of the position adjustment workbench 4, which mainly includes a fixed portion 4-1, a rotatable work surface 4-2, and six rotatable workstations 4-3. The fixed portion 4-1 consists of a mounting base 4-1-1 and a cam divider 4-1-2, which is fixed to the mounting base 4-1-1. The rotatable work surface 4-2 consists of a position adjustment workbench frame 4-2-1 and a replaceable workstation bracket 4-2-2, which is connected to the cam divider 4-1-2 via bolts. The replaceable workstation bracket 4-2-2 is also bolted to the position adjustment workbench frame 4-2-1. The rotatable work surface 4-2 consists of a left tooling support plate (connected to the motor) 4-3-1, a follower tooling support plate 4-3-2, and a tooling support frame 4-3-3. The tooling support frame 4-3-3 is provided with support frame positioning holes 4-3-3-1 for positioning the tooling plate. After securing workpiece 9, workpiece positioning fixture 3 rotates it to its side for assembly (a 90° rotation to the side facilitates alignment with the six-axis robot's assembly angle). Rotatable worktable 4-2 rotates 60°. Workpiece 9 reaches the second buckle assembly station. The servo motor drives the rotatable station to rotate a specified angle. The first six-axis robot 8-1-1 at the second station drives the buckle removal mechanism 8-2 to the buckle swing plate 2-2, completing the buckle removal operation and proceeding to buckle assembly.

[0044] The provision of the rotatable station 4-3 facilitates the transition from clamping to assembly of the workpiece 9. Initially, the workpiece positioning fixture 3 is vertical relative to the rotatable station 4, allowing the workpiece to be easily placed by the unloading jaws while also facilitating clamping by the workpiece positioning fixture 3. Furthermore, since both sides of the workpiece 9 require assembly with clips, the flexible rotation of the assembly side of the workpiece positioning fixture 3 driven by the rotatable station 4-3 perfectly accommodates multiple assembly applications with clips 8-5 in different positions.

[0045] Figure 7This is a schematic diagram of the structure of the buckle feeding device 2. The buckle feeding device 2 includes a feeding device 2-1, a buckle swing plate 2-2, and an anti-jamming device 2-3. The feeding device 2-1 includes a storage bin 2-1-1, a vibrating plate 2-1-2, a linear vibration guide rail 2-1-3, a guide rail cover 2-1-4, a fiber optic sensor 2-1-5, a buckle stop block 2-1-6, and a three-way adjustment bracket 2-1-7. The buckle swing plate 2-2 includes a circular plate 2-2-1, a strong magnet 2-2-2, a buckle proximity sensor 2-2-3, and a swing plate displacement device 2-2-4. The back-and-forth vibration of the storage bin 2-1-1 drives the clips into the vibrating plate 2-1-2. After being vibrated and aligned, the clips 8-5 enter the linear guide track 2-1-3. The linear guide track 2-1-3 is slightly wider than the clips 8-5, and the gap between the guide cover 2-1-4 and the linear guide track 2-1-3 is slightly wider than the thickness of the clips 8-5. The linear guide track 2-1-3 and the guide cover 2-1-4 ensure that the clips 8-5 can be arranged one by one and pass through the track in a single file. A small through-hole (not shown) is provided in the front half of the linear guide track 2-1-3. Light from the fiber optic sensor 2-1-5 passes through the through-hole and is used to detect whether a clip 8-5 has passed through. A clip stopper 2-1-6 is located at the front end of the linear guide track 2-1-3. When the clips 8-5 reach the front end of the linear guide track 2-1-3, the stopper 2-1-6 retracts.

[0046] After a single clip 8-5 enters disc 2-2-1, the cylinder extends upward, driving the clip stopper 2-1-6 to block subsequent clips 8-5 within the guide rail, ensuring that clips 8-5 enter disc 2-2-1 one by one. The three-way adjustment bracket can be adjusted to align the track end with the notch in disc 2-2-1. As clip 8-5 enters disc 2-2-1 from the linear vibration guide rail 2-1-3, the cylinder at the bottom of the swing plate displacement device 2-2-4 pushes out, pushing disc 2-2-1 closer to the track end. Disc 2-2-1 has notches evenly spaced around its circumference, slightly wider than those of clip 8-5. A groove is located at the bottom of each groove, embedded within which is a strong magnet 2-2-2. As clip 8-5 enters the notch from the track end, the strong magnet 2-2-2 exerts suction on clip 8-5, assisting it in entering the notch on disc 2-2-1. After the buckle 8-5 enters the slot, the buckle proximity sensor 2-2-3 at the bottom of the slot generates an induction signal. The PLC determines that the buckle 8-5 has entered the slot, and the cylinder at the bottom of the swing plate displacement device 2-2-4 is retracted, and the slot is away from the track port. The servo motor drives the turntable to rotate the disc 2-2-1 on it to a preset angle, so that the next slot of the disc 2-2-1 is aligned with the track port. The above process is then repeated to complete the swing plate material collection of the buckle 8-5.

[0047] Figure 8The anti-jamming device 2-3 includes a support frame 2-3-1, a guide plate 2-3-2, a pen-shaped cylinder 2-3-3, a pusher block 2-3-4, and a connecting plate 2-3-5.

[0048] The size tolerance of the buckle 8-5 is large, and the extra-wide buckle 8-5 is easy to get stuck in the slot opened on the disc 2-2-1 (that is, the thrust between conventional buckles is easy to cause the farthest buckle to fail to fully enter the slot, that is, the force is transmitted to the front buckle 8 by a subsequent buckle 8-5 to finally realize the transmission of displacement until it passes through the straight vibration guide rail 2-1-3. However, due to the size difference of the buckle 8-5 or the deviation in the transmission force between adjacent buckles 8-5, it is easy for the buckle 8-5 to no longer move in parallel, and then get stuck in the guide rail groove 2-3-1 and cause blockage). In order to avoid this phenomenon affecting production, an anti-jamming device 2-3 is designed. It should be noted that the output end of the anti-jamming device 2-3 acts on several buckles 8-5 that are about to be output, to avoid the buckles in the back row being subjected to increasingly unstable force and causing blockage.

[0049] Figure 9 The figure shows the anti-jamming device 2-3. The horizontal axis passes through the push block 2-3-4. Sliding bearings are installed at both ends of the horizontal axis. The two bearings are respectively placed in the guide grooves of the guide plates 2-3-2. The two guide plates 2-3-2 are connected to the connecting plate 2-3-5 by bolts. The groove position of the connecting plate 2-3-5 is processed with high precision to ensure the parallelism of the two guide plates 2-3-2. The pen-shaped cylinder 2-3-3 and the push block 2-3-4 are connected by threads. When the extra-wide buckle 8-5 gets stuck in the process of entering the slot of the disc 2-2-1 from the track port, the pen-shaped cylinder 2-3-3 of the anti-jamming device 2-3 pushes the pushing block 2-3-4, and the sliding bearings on both sides of the optical axis of the pushing block 2-3-4 roll along the guide groove in the guide plate 2-3-2. The pushing block 2-3-4 pushes forward and downward, pushing the buckle 8-5 in the straight vibration guide rail 2-1-3. Because the buckles 8-5 are arranged in a row, the subsequent buckles 8-5 give a thrust to the stuck buckle 8-5, causing it to enter the slot on the disc 2-2-1. Then the pen-shaped cylinder 2-3-3 is retracted, and the pushing block 2-3-4 is brought back.

[0050] For comparison, see the attached Figure 9 and 14 The push block at the connection end of pusher block 2-3-4 is L-shaped. Its bottom, when pushed downwardly, fits under the extended portions on both inside sides of the V-shaped opening of buckle 8-5, thereby applying force (F) to move buckle 8-5 forward. The push block's width is slightly smaller than the center of the V-shaped opening, allowing it to fit within the opening. The force is applied relative to the center of buckle 8-5, allowing buckle 8-5 to translate stably. Buckle 8-5 is removed upward by buckle mechanism 8-2 from the notch on disk 2-2-1.

[0051] After the assembly of one station is completed, the rotatable table 4-2 of the displacement workbench 4 rotates 60° again, and the rotatable station 4-3 rotates a certain angle again, and the workpiece 9 enters the second station. Subsequently, the workpiece 9 enters the first station, and the six-axis manipulators 8-1-1 and 8-1-2 perform snap-fitting, picking up, and assembly. Similarly, the rotatable table 4-2 of the displacement workbench 4 rotates continuously, and the workpiece 9 passes through the first station, the second station, the third station, and the fourth station in turn (two six-axis manipulators at the fourth station assemble at the same time). After the snap-fitting assembly is completed, the workpiece 9 enters the inspection station.

[0052] Figure 10 The figure is a schematic diagram of the structure of the detection device 6. The detection device 6 includes a support frame 6-1, a linear module 6-2, and a detection mechanism 6-3. The linear module 6-2 is composed of a servo motor 6-2-1, a linear guide 6-2-2, a connecting plate 6-2-3, and four quick-change hooks 6-2-4. The linear guide 6-2-2 is connected to the detection mechanism 6-3 via a connecting plate 6-2-3. The connecting plate 6-2-3 is provided with four quick-change hooks 6-2-4. When replacing the detection mechanism 6-3, only the hooks need to be opened for quick replacement, which improves production efficiency and production line flexibility. The detection mechanism 6-3 includes a circuit mounting plate 6-3-1, a remote module 6-3-2, two pairs of cylinders 6-3-3, a proximity sensor 6-3-4, and a sensor mounting side plate 6-3-5. The proximity sensor 6-3-4 is fixed to the sensor mounting side plate 6-3-5 by a screw. The detection mechanism 6-3 faces the detection station and is in the same vertical plane as the workpiece positioning fixture 3 on the detection station. After the workpiece 9 arrives at the detection station, the rotating station 4-3 rotates the workpiece 9 to a vertical position. The servo motor 6-2-1 drives the linear guide 6-2-2 downward, and the detection mechanism 6-3 also moves vertically downward to approach the workpiece 9. After the detection mechanism 6-3 reaches the set position, the two pairs of cylinders 6-3-3 extend, driving the sensor mounting side plates 6-3-5 to approach the workpiece 9. The proximity sensor 6-3-4 detects the missing buckles installed on the workpiece 9. The detection signal is transmitted to the PLC terminal in the main control cabinet 5 through the remote module. Then the two pairs of cylinders 6-3-3 are retracted, the servo motor 6-2-1 drives the linear guide rail 6-2-2 to rise, the rotatable table 4-2 of the displacement table 4 rotates again, the workpiece 9 reaches the loading and unloading station, the side clamping jaws 3-2 and the clamping mechanism 3-3 of the workpiece positioning tooling 3 are released, and the six-axis manipulator 8-1 moves the workpiece 9 to the unloading table 7 through the workpiece loading and unloading clamping jaws 1.

[0053] Figure 11The diagram shows the structure of the blanking workbench 7. The blanking workbench 7 comprises a fixed base 7-1, a turntable 7-2, and a blanking fixture plate 7-3. The fixed base 7-1 includes a mounting base 7-1-1, a cam divider 7-1-2, a safety partition 7-1-3, and other components. The turntable 7-2 is provided with positioning holes for the blanking fixture plate (not shown). The blanking fixture plate 7-3 comprises a workpiece contour support POM block 7-3-1, a square buckle assembly device 7-3-2, and a handle 7-3-3. The square buckle assembly device 7-3-2 comprises a square buckle assembly cylinder 7-3-2-1 and a square buckle pressing block 7-3-2-2. The square buckle pressing block 7-3-2-2 contains a magnet and a fiber optic sensor. The magnet is used to secure the square buckle to the pressing block, and the fiber optic sensor is used to detect the presence of the square buckle on the pressing block. The six-axis manipulator 8-1 places the workpiece 9 on the workpiece contour support POM block 7-3-1 through the workpiece loading and unloading clamp 1. The square buckle assembly device 7-3-2 presses the square buckle 8-6 into the corresponding position of the workpiece 9. The worker presses the button outside the production line, and the unloading workbench 7 rotates 180° to manually remove the workpiece 9.

[0054] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated production line for assembling snap buckles on the central channel assembly of an automobile, used to assemble a number of snap buckles and square buckles on both sides of the central channel, characterized by: It includes a position shifting workbench located in the middle, which is divided into six stations in the circumferential direction. A workpiece positioning tool is movably installed on the position shifting workbench to limit and clamp the central channel of the car. A workpiece loading and unloading clamp is provided on the side of the first station, and a six-axis manipulator for assembling buckles is provided on the sides of the other five stations. A buckle feeding device is placed on the adjacent side of each six-axis manipulator. A blanking workbench is further provided at the far end of the first station, and the loading and unloading clamp is used to realize the interactive clamping of the central channel of the car on the position shifting workbench and the first station; The workpiece positioning fixture includes a connecting plate, a workpiece positioning membrane is provided in the middle of the connecting plate, side clamps are provided on the front and rear sides respectively, a clamping mechanism is provided on the left side, and a limiting pressure block is provided on the opposite side, wherein the side clamps are composed of a pair of pneumatic fingers and a clamping plate, and the clamping mechanism is composed of a pair of spinning cylinders and a clamping plate to drive the clamping plate to rotate and adjust the limiting position to adapt to the shape of the workpiece, and the limiting pressure block is composed of a pushing cylinder and a pressure block, and the output displacement trajectory of the limiting pressure block is inclined downward to adapt to the shape of the workpiece; the displacement workbench includes a fixed part, a rotatable work table, six rotatable The workstation, the fixed part consists of a mounting base and a cam divider, the cam divider is fixed on the mounting base; the rotatable work table is connected to the cam divider by bolts, and the rotatable workstation includes a tooling support frame, and the two sides of the tooling support frame are spaced apart with a tooling left support plate and a follower tooling support plate driven to rotate by a servo motor. The workpiece positioning tooling is limited and fixed on the tooling support frame. After the workpiece positioning tooling fixes the central channel of the car, it is rotated to its assembly side. The displacement worktable rotates 60° to drive the central channel of the car to the first snap assembly station for snap assembly.

2. The automated production line for assembling buckles of a central channel assembly of an automobile according to claim 1, characterized in that: The workpiece loading and unloading clamp is fixed to the six-axis manipulator through a connecting flange, which includes a support. Pneumatic fingers are respectively provided on both sides of the support, and two pairs of POM blocks are respectively provided at the pneumatic fingers. After the six-axis manipulator drives the workpiece loading and unloading clamp to the top of the central channel of the car, the pneumatic fingers shrink and drive the POM blocks to clamp the central channel of the car accordingly. A photoelectric sensor is also provided on the support to detect whether the workpiece loading and unloading clamp has clamped the workpiece.

3. The automated production line for assembling snap-on components of a central channel assembly of an automobile according to claim 1, characterized in that: The buckle feeding equipment includes a feeding device and a buckle pendulum plate connected to each other, wherein the feeding device includes a storage bin and a vibrating plate placed on the discharge side of the discharging bin. A straight vibration guide rail is provided at the outlet of the vibrating plate, and a guide rail cover is provided on the straight vibration guide rail. A buckle blocking block is provided at the front end of the connection between the straight vibration guide rail and the buckle pendulum plate to limit the buckles from being exported one by one. A pendulum plate displacement device is provided at the bottom of the buckle pendulum plate. Each time a buckle is received, it is pushed close to the straight vibration guide rail through the bottom cylinder and is quickly recovered after receiving. The buckle pendulum plate includes a circular disc, and the circumference of the circular disc is evenly divided with notches. A groove is provided at the bottom of the notch, and a strong magnet is embedded in the groove to assist the buckle to enter the notch on the disc.

4. The automated production line for assembling snap-on components of a central channel assembly of an automobile according to claim 3, characterized in that: The width of the direct vibration guide rail is wider than the buckle, the width of the gap between the guide rail cover and the direct vibration guide rail is slightly larger than the thickness of the buckle, and the direct vibration guide rail and the guide rail cover limit the buckles to be arranged one by one and in a row through the track.

5. The automated production line for assembling buckles of a central channel assembly of an automobile according to claim 3, characterized in that: A small through hole is provided on the front half of the straight vibration guide rail, and an optical fiber sensor is provided on the lower side. The light from the optical fiber sensor passes through the guide rail through the through hole to detect whether a buckle passes through; a buckle proximity sensor is provided at the bottom of the slot, and the buckle proximity sensor generates an induction signal. After the PLC determines that the buckle enters the slot, the disc rotates a preset angle so that the next slot of the disc is aligned with the track port, and then the above process is repeated.

6. The automated production line for assembling snap-on components of a central channel assembly of an automobile according to claim 5, characterized in that: The straight vibration guide rail is also provided with an anti-jamming device, which includes a support frame arranged along the direction of the straight vibration guide rail, a pen-shaped cylinder at the end of the support frame 1, a push block at the output end of the pen-shaped cylinder, a guide plate at the front end of the support frame, and guide grooves on both sides of the guide plate; sliding bearings are installed at both ends of the transverse axis on both sides of the push block, and the two bearings are respectively placed in the guide grooves of the guide plate, and the connecting end of the push block is connected to an L-shaped push block, the bottom of which extends into the extended parts on both inner sides of the V-shaped mouth of the buckle when it is tilted downward, and then a force (F) is applied to drive the entire buckle to move forward, wherein the width of the push block is smaller than the middle size of the V-shaped mouth, and thus can extend into the V-shaped mouth, and the force application position is relative to the middle position of the buckle.

7. The automated production line for assembling buckles of a central channel assembly of an automobile according to claim 1, characterized in that: A detection device is also provided on the six-axis manipulator side of the sixth station. The detection device includes a support frame, a linear module, and a detection mechanism. The linear module is composed of a servo motor, a linear guide rail, a connecting plate, and four quick-change hooks. The linear guide connecting plate is connected to the detection mechanism. Four quick-change hooks are provided on the connecting plate to realize rapid replacement of the detection mechanism. The mechanism is facing the detection station and is in the same vertical plane as the workpiece positioning tooling on the detection station.

8. The automated production line for assembling snap-on components of a central channel assembly of an automobile according to claim 1, characterized in that: The blanking workbench includes a fixed base, a turntable is provided on the fixed base, the output end of the turntable is connected to a blanking tooling plate, the blanking tooling plate is provided with a workpiece profiling support POM block and a square buckle assembly device, the square buckle assembly device includes a square buckle assembly cylinder, the output end of the square buckle assembly cylinder is connected to a square buckle pressing block, wherein the square buckle pressing block contains a magnet, and the magnet is used to fix the square buckle on the pressing block, the six-axis manipulator places the workpiece on the workpiece profiling support POM block through the workpiece loading and unloading clamps, the square buckle assembly device presses the square buckle horizontally into the position corresponding to the central channel of the car, and the blanking workbench rotates 180° and the central channel of the car is removed manually.

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