Semi-automatic winder assembly line and control method thereof

Abstract

The invention relates to a semi-automatic winder assembling line and a control method thereof, and belongs to the technical field of winder assembling equipment, the semi-automatic winder assembling line comprises a conveying line, and the side edge of the conveying line is sequentially provided with a supporting plate marking assembly, a screw shaft locking and oiling assembly, a cover plate pressing assembly and an inner cover pressing balance assembly. The supporting plate marking assembly comprises a push-in press-fitting device, and a roller oiling station is arranged at the front end of the push-in press-fitting device. The screw shaft locking and oiling assembly comprises a screw shaft height measuring station, a screw shaft locking station is arranged on the side edge of the screw shaft height measuring station, and a body oiling station I is arranged at the front end of the screw shaft height measuring station. The cover plate pressing assembly comprises a grabbing station, a pressing station is arranged on the grabbing station, and a body oiling station II is arranged at the front end of the grabbing station. The inner cover press-fit balance assembly comprises a press-fit tool, a CP height detection station is arranged at the front end of the press-fit tool, and a balancer press-fitting station is arranged at the rear end of the press-fit tool. And integration of oiling, assembling, pressing and detecting is achieved through multiple stations, and the semi-automatic assembling technological process of the coiler is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of retractor assembly equipment, and in particular to a semi-automatic retractor assembly line and a control method thereof. Background Art

[0002] Seatbelt systems have long been installed in vehicle seats to restrain occupants in emergency situations, such as sudden braking or collisions, and prevent them from being thrown forward due to inertia. Seatbelt systems feature a retractor located behind or within the seatback. The retractor can freely release the seatbelt webbing, or seatbelt, in an emergency, while simultaneously retracting it through rotational force. This ensures that the webbing remains securely attached to the occupant's body, even during normal movement.

[0003] The webbing is actually wound on a spindle mounted on the retractor. The spindle is supported for free rotation and winds the webbing using the force of a spring, such as a take-up spring device or an electric motor, mounted on the retractor. If the vehicle experiences a strong impact, such as a collision, a pretensioner on the retractor locks the webbing, restraining the driver and passengers.

[0004] The retractor structure consists of a bushing, outer frame, roller, shaft, sleeve, rack guide block A, rack block, rack guide block B, counterweight, lock plate, retractor mechanism, screws, ratchet, balancer, and pins. Pins are metal materials used in connectors to conduct electricity (signals).

[0005] The prior art "A seat belt retractor assembly machine", application number CN202022294800.2, discloses a machine base; a mechanical cover riveting assembly; a silencer spring installation assembly; a camera detection assembly for detecting whether the silencer spring is installed accurately; a cover pressing assembly; a cover riveting assembly; the mechanical cover riveting assembly, the silencer spring installation assembly, the camera detection assembly, the cover pressing assembly, and the cover riveting assembly are arranged in sequence on the machine base; the machine base is provided with a conveyor platform for transferring the seat belt retractor to be assembled between the various components.

[0006] With the development of industry, automated reel assembly has become an essential process. However, with rising labor costs, designing a semi-automated reel assembly system presents a significant challenge. While similar equipment exists on the market, it often has complex structures, immature processes, and lacks the necessary lubrication steps for components. Therefore, a simple and stable semi-automated reel assembly line is urgently needed. Summary of the Invention

[0007] This invention primarily addresses the shortcomings of the existing technology by providing a semi-automated retractor assembly line and control method. This line offers the advantages of a compact structure, time-saving and labor-saving features, high efficiency, and excellent operational stability. It also addresses the challenges of retractor assembly and testing. By integrating multiple stations for lubrication, assembly, pressing, and testing, the line achieves a semi-automated retractor assembly process.

[0008] The above technical problems of the present invention are mainly solved by the following technical solutions: A semi-automatic assembly line for a retractor includes a conveyor line, wherein a support plate engraving component, a screw shaft locking and oiling component, a cover plate pressing component, and an inner cover pressing and balancing component are sequentially arranged on the side of the conveyor line.

[0009] The support plate engraving assembly includes a push-in press, and a roller oiling station is provided at the front end of the push-in press.

[0010] The screw shaft locking and oiling assembly includes a screw shaft measuring height station, a screw shaft locking station is provided on the side of the screw shaft measuring height station, and a main body oiling station I is provided at the front end of the screw shaft measuring height station.

[0011] The cover plate pressing assembly includes a grabbing station, a pressing station is provided on the grabbing station, and a main body oiling station II is provided at the front end of the grabbing station.

[0012] The inner cover pressing and balancing assembly includes a pressing tool, a CP height detection station is provided at the front end of the pressing tool, and a balancer pressing station is provided at the rear end of the pressing tool.

[0013] Preferably, a height detection station after screw locking is provided between the inner cover pressing balance assembly and the cover plate pressing assembly, and the height detection station after screw locking includes a tightening height measuring station, and a secondary positioning station is provided at the front end of the tightening height measuring station.

[0014] Preferably, a ratchet rebound detection component is provided between the height detection station after screw locking and the inner cover pressing balance component, and the ratchet rebound detection component includes a ratchet rebound detection station.

[0015] As an advantage, the roller oiling station is provided with an axis detection station fixedly connected to the push-in press. The roller oiling station comprises an oiling cylinder, and a roller oiler is provided at the front end of the oiling cylinder.

[0016] Preferably, the conveyor line has an "L"-shaped right-angle bend structure, and a conveyor diverter installed at the right-angle turn of the conveyor line is provided between the cover plate pressing assembly and the screw shaft locking and oiling assembly.

[0017] Preferably, the conveying diverter includes a rotating station, and the rotating station is provided with a pushing cylinder.

[0018] A control method for a semi-automatic assembly line of a retractor includes the following steps: Step 1: Place the bushing and the outer frame on the tooling trolley on the conveyor line. The tooling trolley enters the support plate engraving assembly. Take the roller and place it in the roller oiling station. Place the axis in the axis inspection station. Place the inspected axis in the tooling trolley fixture. Then take the oiled roller and axis assembly. Then take the sleeve and roller assembly. Take the drive plate and axis assembly. Take the rack guide block A and the rack stop block assembly and pre-tighten them with the outer frame assembly. Press the rack guide block A under the cylinder of the press.

[0019] Step 2: The tooling trolley moves to the screw shaft locking and oiling assembly, takes out the rack guide block B and the counterweight body and places them in the main body oiling station II, takes out the oiled rack guide block B and the counterweight body, assembles them with the outer frame, and after the assembly is completed, takes out the screw shaft and the counterweight body for pre-locking, locks the screw shaft at the screw shaft locking station, and then uses GT to perform height detection at the screw shaft height measurement station.

[0020] Step 3: The conveyor line pushes the tooling trolley to the cover plate pressing assembly, takes the locking plate and the rewinding mechanism assembly, and the cylinder drives the oiling gun at the main body oiling station II to oil the locking plate and the counterweight body respectively. After the oiling is completed, the grabbing station grabs the locking plate cover and puts it on the main module, and moves the tooling to the pressing station for pressing.

[0021] Step 4: The conveyor line runs the tooling trolley to the inner cover pressing balance assembly, takes the balancer assembly and puts it into the CP height detection station to detect the balancer height. After the detection is completed, the operator assembles the balancer with the workpiece, and then pushes in the pressing tooling to cooperate with the balancer pressing station. The balancer pressing station first presses the balancer, and then the balancer pressing station retreats. The two groups of cylinders of the pressing tooling, one group first descends to position the pin needle and insert the product positioning pin needle, and then the second group of large cylinders descends to press the pin needle into the product to complete the action.

[0022] Preferably, the axis detection station has a photoelectric detection device to detect the presence or absence of the axis, a laser sensor to detect the axis, and a group of photoelectric devices on the side of the roller oiling station to detect the presence or absence of the roller. The oiling cylinder pulls the roller oiler into the oiling station, and the cylinder on the roller oiler drives the oiling gun to descend to oil the roller.

[0023] Preferably, after the cover pressing assembly is completed, at the height detection station after the screws are locked, the three positioning columns of the secondary positioning station are used to position and press the product shell. After positioning, the product cover is tightened by suction nails at the tightening height measurement station. After tightening, the carriage moves forward to the lower position of the height measurement GT to perform the screw height measurement action; then at the ratchet rebound detection station of the ratchet rebound detection assembly, the cylinder inserts the positioning column into the ratchet combination rotating cylinder to perform a rotating ratchet inspection.

[0024] The present invention can achieve the following effects: The present invention provides a semi-automated retractor assembly line and control method. Compared with existing technologies, this line offers the advantages of a compact structure, time-saving and labor-saving features, high efficiency, and excellent operational stability. It solves the problems of retractor assembly and testing. It enables semi-automated assembly of finished seatbelt retractors, reduces manual labor, allows for the timely removal of defective products, and prevents them from entering the market. This improves the assembly quality and efficiency of finished seatbelt retractors, meets the enormous market demand, and demonstrates promising market application value.

[0025] (1) Each workstation can assemble products in the simplest and fastest way, so each workstation has error prevention and detection mechanisms to prevent human error.

[0026] (2) Previously, the production line required six people to operate. Now, this semi-automatic assembly line only requires two people, which saves a lot of labor costs and greatly improves the accuracy of product production, which is something that most production lines cannot do at present. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the support plate imprinting assembly of the present invention.

[0029] Figure 3 It is a structural schematic diagram of the screw shaft locking and oiling assembly of the present invention.

[0030] Figure 4 It is a structural schematic diagram of the cover plate pressing assembly of the present invention.

[0031] Figure 5 It is a structural schematic diagram of the height detection station after screw locking of the present invention.

[0032] Figure 6 It is a structural schematic diagram of the ratchet rebound detection assembly of the present invention.

[0033] Figure 7 It is a structural schematic diagram of the inner cover pressing and balancing assembly of the present invention.

[0034] Figure 8It is a structural schematic diagram of the conveying diverter of the present invention.

[0035] Figure 9 It is a structural schematic diagram of the roller oiling station of the present invention.

[0036] Figure 10 It is a structural schematic diagram of the secondary positioning station of the present invention.

[0037] Figure 11 It is a structural schematic diagram of the rotary station of the present invention.

[0038] In the figure: inner cover pressing and balancing assembly 1, ratchet rebound detection assembly 2, screw locking height detection station 3, cover plate pressing assembly 4, conveying diverter 5, screw shaft locking and oiling assembly 6, support plate engraving assembly 7, conveyor line 8, push-in press 9, roller oiling station 10, axis detection station 11, screw shaft height measurement station 12, screw shaft locking station 13, main body oiling station I 14, grabbing station 15, press fitting station 16, main body oiling station II 17, tightening height measurement station 18, secondary positioning station 19, ratchet rebound detection station 20, balancer press fitting station 21, pressing tool 22, CP height detection station 23, rotation station 24, push-out cylinder 25, roller oiler 26, oiling cylinder 27. DETAILED DESCRIPTION

[0039] The technical solution of the invention is further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0040] Example: As shown in Figures 1-11, a semi-automated assembly line for retractors includes a conveyor line 8, with a support plate imprinting assembly 7, a screw shaft locking and oiling assembly 6, a cover plate pressing assembly 4, and an inner cover pressing and balancing assembly 1 located on its sides. The conveyor line 8 has an L-shaped right-angle bend structure. A conveyor diverter 5 is installed at the right-angle turn of the conveyor line 8 between the cover plate pressing assembly 4 and the screw shaft locking and oiling assembly 6. The conveyor diverter 5 includes a rotation station 24 equipped with a push-out cylinder 25. A post-screw locking height detection station 3 is located between the inner cover pressing and balancing assembly 1 and the cover plate pressing assembly 4. This post-screw locking height detection station 3 includes a tightening height measurement station 18, with a secondary positioning station 19 located at its front end. A ratchet rebound detection assembly 2 is located between the post-screw locking height detection station 3 and the inner cover pressing and balancing assembly 1. This ratchet rebound detection assembly 2 includes a ratchet rebound detection station 20. The support plate engraving assembly 7 includes a push-in press 9, with a roller oiling station 10 at its front end. An axis detection station 11 is attached to the side of the roller oiling station 10 and is fixedly connected to the push-in press 9. The roller oiling station 10 includes an oiling cylinder 27, with a roller oiler 26 at its front end. The screw shaft locking and oiling assembly 6 includes a screw shaft height measurement station 12, with a screw shaft locking station 13 at its side and a main body oiling station I 14 at its front end. The cover plate pressing assembly 4 includes a gripping station 15, with a press-fitting station 16 above it and a main body oiling station II 17 at its front end. The inner cover pressing and balancing assembly 1 includes a pressing tool 22, with a CP height detection station 23 at its front end and a balancer pressing and balancing station 21 at its rear end.

[0041] A control method for a semi-automatic assembly line of a retractor includes the following steps: Step 1: Place the bushing and the outer frame onto the tooling trolley on the conveyor line 8. The tooling trolley enters the support plate engraving assembly 7. Take the roller and place it into the roller oiling station 10. Place the axis into the axis inspection station 11. Place the inspected axis into the tooling trolley fixture. Then take the oiled roller and axis assembly, then take the sleeve and roller assembly, take the drive plate and axis assembly, take the rack guide block A and the rack stop block assembly and pre-tighten them with the outer frame assembly, and push the rack guide block A under the cylinder of the press assembler 9.

[0042] The axis detection station 11 has a photoelectric detection device to detect the presence or absence of the axis, and a laser sensor detects the axis. There is a group of photoelectric devices on the side of the roller oiling station 10 to detect the presence or absence of the roller. The oiling cylinder 27 pulls the roller oiler 26 into the oiling station, and the cylinder on the roller oiler 26 drives the oiling gun to descend to oil the roller.

[0043] Step 2: The tooling trolley moves to the screw shaft locking and oiling assembly 6, takes out the rack guide block B and the counterweight body and places them in the main body oiling station II 17, takes out the oiled rack guide block B and the counterweight body, assembles them with the outer frame, and after the assembly is completed, takes out the screw shaft and the counterweight body for pre-locking, locks the screw shaft at the screw shaft locking station 13, and then uses GT to perform height detection at the screw shaft height measurement station 12.

[0044] Step 3: The conveyor line 8 pushes the tooling trolley to the cover plate pressing assembly 4, takes the lock plate and the rewinding mechanism assembly, and the cylinder drives the oiling gun at the main body oiling station II 17 to oil the lock plate and the counterweight body respectively. After the oiling is completed, the grabbing station 15 grabs the lock plate cover and puts it on the main module. The tooling is moved to the pressing station 16 for pressing.

[0045] After the cover pressing assembly 4 is completed, at the height detection station 3 after the screws are locked, the three positioning columns of the secondary positioning station 19 are used to position and press the product shell. After positioning, the product cover is tightened by suction nails at the tightening height measurement station 18. After tightening, the carriage moves forward to the lower position of the height measurement GT to perform the screw height measurement action; then at the ratchet rebound detection station 20 of the ratchet rebound detection assembly 2, the cylinder inserts the positioning column into the ratchet combination rotating cylinder to perform the rotating ratchet inspection.

[0046] Step 4: The conveyor line 8 moves the tooling trolley to the inner cover pressing balance assembly 1, takes the balancer assembly and puts it into the CP height detection station 23 to detect the balancer height. After the detection is completed, the operator assembles the balancer with the workpiece, and then pushes in the pressing tooling 22 to cooperate with the balancer pressing station 21. The balancer pressing station 21 first presses the balancer, and then the balancer pressing station 21 retreats. The two groups of cylinders of the pressing tooling 22, one group first descends to position the pin needle and insert the product positioning pin needle, and then the second group of large cylinders descends to press the pin needle into the product to complete the action.

[0047] In summary, this semi-automated retractor assembly line and its control method offer the advantages of a compact structure, time-saving and labor-saving features, high efficiency, and excellent operational stability. They address the challenges of retractor assembly and testing. This enables semi-automated assembly of finished seatbelt retractors, reduces manual labor, allows for the timely removal of defective products, and prevents them from entering the market. This improves the assembly quality and efficiency of finished seatbelt retractors, meets the enormous market demand, and demonstrates promising market application value.

[0048] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A semi-automatic assembly line for a retractor, characterized by: It comprises a conveying line (8), wherein the side of the conveying line (8) is provided with a support plate engraving assembly (7), a screw shaft locking and oiling assembly (6), a cover plate pressing assembly (4), and an inner cover pressing and balancing assembly (1) in sequence; The support plate imprinting assembly (7) includes a push-in press (9), and a roller oiling station (10) is provided at the front end of the push-in press (9); The screw shaft locking and oiling assembly (6) includes a screw shaft measuring high station (12), a screw shaft locking station (13) is provided on the side of the screw shaft measuring high station (12), and a main body oiling station I (14) is provided at the front end of the screw shaft measuring high station (12); The cover plate pressing assembly (4) includes a grabbing station (15), a pressing station (16) is provided on the grabbing station (15), and a main body oiling station II (17) is provided at the front end of the grabbing station (15); The inner cover pressing and balancing assembly (1) comprises a pressing tool (22), a CP height detection station (23) is provided at the front end of the pressing tool (22), and a balancer pressing station (21) is provided at the rear end of the pressing tool (22).

2. The semi-automatic assembly line for retractors according to claim 1, characterized in that: A height detection station (3) after screw locking is provided between the inner cover pressing balance assembly (1) and the cover plate pressing assembly (4), and the height detection station (3) after screw locking includes a tightening height measurement station (18), and a secondary positioning station (19) is provided at the front end of the tightening height measurement station (18).

3. The semi-automatic assembly line for retractors according to claim 2, characterized in that: A ratchet rebound detection assembly (2) is provided between the screw locking height detection station (3) and the inner cover pressing balance assembly (1), and the ratchet rebound detection assembly (2) includes a ratchet rebound detection station (20).

4. The semi-automatic assembly line for retractors according to claim 3, characterized in that: The roller oiling station (10) is provided with an axis detection station (11) fixedly connected to the push-in press (9) on the side thereof; the roller oiling station (10) includes an oiling cylinder (27), and a roller oiler (26) is provided at the front end of the oiling cylinder (27).

5. The semi-automatic assembly line for retractors according to claim 1, characterized in that: The conveyor line (8) is in an "L"-shaped right-angle bending structure, and a conveyor diverter (5) installed at the right-angle turning point of the conveyor line (8) is provided between the cover plate pressing assembly (4) and the screw shaft locking and oiling assembly (6).

6. The semi-automatic assembly line for retractors according to claim 5, characterized in that: The conveying diverter (5) includes a rotating station (24), and the rotating station (24) is provided with a pushing cylinder (25).

7. The control method of the semi-automatic assembly line of the retractor according to claim 4 is characterized in that The steps are as follows: Step 1: Place the bushing and the outer frame on the tooling trolley on the conveyor line (8), the tooling trolley enters the support plate engraving assembly (7), takes the roller and places it in the roller oiling station (10), places the axis in the axis detection station (11), places the axis after detection in the tooling trolley fixture, then takes the oiled roller and axis assembly, then takes the shaft sleeve and roller assembly, takes the drive plate and axis assembly, takes the rack guide block A and the rack stop block assembly and pre-tightens it with the outer frame assembly, and presses the rack guide block A under the cylinder of the push-in press (9); Step 2: The tooling trolley moves to the screw shaft locking and oiling assembly (6), takes out the rack guide block B and the counterweight body and places them in the main body oiling station II (17), takes out the oiled rack guide block B and the counterweight body, assembles them with the outer frame, takes out the screw shaft and the counterweight body for pre-locking, and locks the screw shaft at the screw shaft locking station (13), and then uses GT to perform height detection at the screw shaft height measurement station (12); Step 3: The conveyor line (8) pushes the tooling trolley to the cover plate pressing assembly (4), takes the lock plate and the rewinding mechanism assembly, and at the main body oiling station II (17), the cylinder drives the oiling gun to oil the lock plate and the counterweight body respectively. After the oiling is completed, the grabbing station (15) grabs the lock plate cover and puts it on the main body module, and moves the tooling to the pressing station (16) for pressing; Step 4: The conveyor line (8) moves the tooling trolley to the inner cover pressing balance assembly (1), takes the balancer assembly and puts it into the CP height detection station (23) to detect the balancer height. After the detection is completed, the operator assembles the balancer with the workpiece, and then pushes in the pressing tooling (22) to cooperate with the balancer pressing station (21). The balancer pressing station (21) first presses the balancer, and then the balancer pressing station (21) retreats. The two groups of cylinders of the pressing tooling (22) first descend to position the pin and insert the pin into the product, and then the second group of large cylinders descends to press the pin into the product to complete the action.

8. The control method for a semi-automatic assembly line for a retractor according to claim 7, characterized in that: The axis detection station (11) has a photoelectric detection device for detecting the presence or absence of the axis, a laser sensor detects the axis, and a group of photoelectric detection devices are provided on the side of the roller oiling station (10) to detect the presence or absence of the roller. The oiling cylinder (27) pulls the roller oiler (26) into the oiling station, and the cylinder on the roller oiler (26) drives the oiling gun to descend to oil the roller.

9. The control method for a semi-automatic assembly line for a retractor according to claim 7, characterized in that: After the cover pressing assembly (4) is completed, at the height detection station (3) after the screw is locked, the three positioning columns of the secondary positioning station (19) are used to position and press the product shell. After positioning, the product cover is tightened by suction nails at the tightening height measurement station (18). After tightening, the trolley moves forward to the lower position of the height measurement GT to perform the screw height measurement action; then, at the ratchet rebound detection station (20) of the ratchet rebound detection assembly (2), the cylinder inserts the positioning column into the ratchet combination rotating cylinder to perform the rotating ratchet inspection.

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