A convenient operation and control device and method for the front cover of a car body on a production line

Abstract

This invention belongs to the field of automotive industrial production technology, specifically relating to a convenient operation control device and method for the front hood of a production line. A track hanger is fixed on the traveling track, and a drive guard is connected to the traveling track via pulleys. A miniature electric hoist is installed inside the drive guard. A transverse C-shaped track is fixed to the drive guard, and a C-shaped track bearing 8 is fitted onto the transverse C-shaped track. A Z-shaped bracket is fixed at the bottom, and the miniature electric hoist wire rope is wound around a pulley on the Z-shaped bracket. The wire rope is equipped with a lifting limit switch, a limit ball, and a counterweight. This invention effectively reduces worker fatigue, avoids excessive equipment costs, reduces pollution to the vehicle body during operation, and is easy to operate, meeting the requirements of high efficiency and stability, thus adapting to the increasingly demanding requirements of modern automotive production lines.

Description

Technical Field

[0001] This invention belongs to the field of automotive industrial production technology, specifically relating to a convenient operation control device and method for the front cover of a production line. Background Technology

[0002] In the continuous development of the modern automotive industry, ergonomics has gained significant attention and widespread consensus among major companies. As automotive production processes become increasingly complex and sophisticated, production line operators need to perform repetitive and precise operations for extended periods. Good ergonomic design can make operations more rational and less strenuous, reducing operator fatigue and physical strain, improving work efficiency and safety, and ultimately enhancing work efficiency and quality stability. This demonstrates the significance and value of ergonomics in practical applications.

[0003] In the automotive production process, the handling of the hood (engine hood) has always been a focus of attention. For example, in processes such as electrophoretic sanding, sealant application, intermediate coat sanding, topcoat inspection and repair, and two-tone masking in the automotive body painting workshop, the hood needs to be frequently lifted due to the treatment of its inner surface. For a long time, this has primarily been done manually. However, this method has many limitations and problems. For some large SUVs and other vehicles, the hood is heavy, and manual lifting can require significant physical exertion, making it difficult for operators with less strength. This can easily lead to worker fatigue, affecting work efficiency and potentially harming worker health. Furthermore, some processes require support rods after manual lifting, which can obstruct work on certain inner surfaces of the hood. Some companies have added manual balancers to workstations requiring hood handling, but this method is also laborious. In addition, some companies use suction cups for operation. While this can reduce manpower to some extent, the equipment investment required for suction cup operation is high, increasing the company's production costs. Furthermore, it has some limitations in practical application. For example, the suction cup needs to come into contact with the engine hood, which can lead to dirt contamination of the hood. Because automotive painting requires extremely high cleanliness of the car body surface, dirt on the suction cup surface will affect the painting quality. Additionally, suction cups are not suitable for areas with holes, such as the front hood emblem.

[0004] In light of these circumstances, there is an urgent need in the field for an innovative solution for operating the front hood of a car body on the production line. Summary of the Invention

[0005] To overcome the above problems, the present invention provides a convenient operation control device and method for the front cover of a car body on a production line; it can effectively reduce worker fatigue, avoid excessive equipment costs, reduce pollution to the car body during operation, and is easy to operate, meeting the requirements of high efficiency and stability, and can adapt to the increasingly higher requirements of modern automobile production lines.

[0006] A convenient operating device for a car body hood on a production line includes a traveling track 1, a track hanger 6, a transversely moving C-shaped track 7, a C-shaped track bearing 8, a Z-shaped bracket 9, a mini electric hoist 16 (wire rope electric hoist), and a drive protective cover 17. The track hanger 6 is fixed above the traveling track 1. The drive protective cover 17 is connected to the traveling track 1 via a traveling track pulley 2 and can slide along the traveling track 1. The mini electric hoist 16 is housed inside the drive protective cover 17. One end of the transversely moving C-shaped track 7 is fixed to the top of the drive protective cover 17, and the C-shaped track bearing 8 is sleeved and connected to the transversely moving C-shaped track 17. Outside the C-shaped track 7, it can slide along the transversely moving C-shaped track 7, and its bottom is fixed with a Z-shaped bracket 9. The end of the Z-shaped bracket 9 is provided with a pulley. After the wire rope 15 of the mini electric hoist 16 is wound around the pulley, the special hook 14 connected to its bottom hangs down naturally. The bottom of the Z-shaped bracket 9 is fixed with a lifting limit switch 10. The wire rope 15 of the mini electric hoist 16 between the Z-shaped bracket 9 and the special hook 14 is provided with a lifting limit switch stop bar 12, a limit steel ball 11 and a counterweight 13 in sequence. The lifting limit switch stop bar 12 is movably sleeved on the outside of the wire rope 15, and the counterweight 13 is fixed on the wire rope 15.

[0007] It also includes a balancer slewing wheel 18, a spring balancer 19, and a Z-shaped bracket return wire rope 20. The balancer slewing wheel 18 is fixed to the other end of the transversely moving C-shaped track 7, and the spring balancer 19 is fixed to the drive protective cover 17. The spring balancer 19 and the balancer slewing wheel 18 are connected by the Z-shaped bracket return wire rope 20. One end of the Z-shaped bracket return wire rope 20 is fixed to the spring balancer 19, and the other end passes around the balancer slewing wheel 18 and is fixed to the C-shaped track bearing 8.

[0008] It also includes a travel limit switch baffle 3, a first travel limit switch 4, and a second travel limit switch 5, wherein the travel limit switch baffle 3 is fixed to the side of the traveling track 1, and the second travel limit switch 5 and the first travel limit switch 4 are fixed to the top of the side wall of the drive protective cover 17 in sequence.

[0009] An alarm 21 is also fixed to the side wall of the drive protective cover 17, wherein the alarm 21 is electrically connected to the first travel limit switch 4 and the second travel limit switch 5 respectively.

[0010] The lifting limit switch lever 12 includes a sleeve and a rod, wherein the rod is fixed to the side wall of the sleeve, the sleeve is movably sleeved on the outside of the wire rope 15, and the bottom of the sleeve is provided with a bottom cover.

[0011] The Z-shaped bracket 9 includes a long vertical rod, a horizontal rod, and a short vertical rod. The long vertical rod and the short vertical rod are fixed to the upper and lower ends of the horizontal rod, respectively. The top of the long vertical rod is fixed to the C-shaped track bearing 8. The lifting limit switch 10 is fixed to the bottom of the horizontal rod. A pulley is provided at the junction of the horizontal rod and the short vertical rod. The wire rope 15 of the mini electric hoist 16 is wound around the pulley and passes through the short vertical rod. A special hook 14 is provided at the bottom of the part of the wire rope 15 that passes through the short vertical rod. The lifting limit switch stop bar 12 is fitted on the wire rope 15 below the short vertical rod.

[0012] A convenient operation and control method for the front cover of a car body on a production line includes the following:

[0013] Step 1: The traveling track 1 is connected to the frame of the chamber directly above the center line of the production line vehicle body through the track hanger 6;

[0014] Step 2: The operator pulls the special hook 14, which causes the mini electric hoist 16 and the transverse C-shaped rail 7 to move on the accompanying rail 1 through the drive protective cover 17 and the accompanying rail pulley 2 until the special hook 14 moves to the required lifting position.

[0015] Step 3: Turn on the mini electric hoist 16 to lower the wire rope 15 and the special hook 14. The operator manually hooks the auxiliary handle of the front cover of the vehicle body and hooks the special hook 14 onto the auxiliary handle of the front cover of the vehicle body.

[0016] Step 4: Start the mini electric hoist 16 to continuously wind up the wire rope 15. The special hook 14 pulls the auxiliary tool to lift the front cover of the vehicle. When the front cover of the vehicle is lifted to the required angle, the mini electric hoist 16 stops running and the auxiliary tool loading and unloading operation is carried out.

[0017] Step 5: After the loading and unloading of the auxiliary tools is completed, remove the special hook 14 from the handle of the auxiliary tool. Under the action of the spring balancer 19, the Z-shaped bracket 9 returns to its starting position on the lateral movement C-shaped slide rail 7. Start the mini electric hoist 16 and drive the special hook 14 to rise through the wire rope 15 until it is higher than the top of the vehicle body.

[0018] During the loading and unloading auxiliary equipment operation in step four, the roller bed continues to run, and the mini electric hoist 16 is pulled by the auxiliary equipment on the front cover of the vehicle body on the special hook 14, sliding along the accompanying track 1 and running synchronously with the vehicle body.

[0019] During the lifting process of the front cover, in order to avoid damage to the vehicle body due to excessive lifting height, the limiting steel ball 11 on the wire rope 15 is lifted to a certain height, and then the lifting limit switch 10 on the Z-shaped bracket 9 is triggered by the lifting limit switch lever 12. The lifting limit switch 10 sends a signal to the control unit of the mini electric hoist 16, and the mini electric hoist 16 is powered off and stops running.

[0020] If the operator at the workstation fails to remove the special hook 14 in time during step five, the vehicle body will move the mini electric hoist 16 close to the end of the cable trolley. At this time, the travel limit switch baffle 3 will trigger the first travel limit switch 4, and the alarm 21 will emit an audible and visual alarm. If the mini electric hoist 16 continues to move, the travel limit switch baffle 3 will trigger the second travel limit switch 5, and the mechanized conveying system will stop to ensure that no production accident occurs.

[0021] The drive protective cover 17, the mini electric hoist 16 and the transverse moving C-shaped track 7 slide on the accompanying track 1 without power operation, relying on the special hook 14 for manual traction, or the special hook 14 is driven to slide as the vehicle body moves.

[0022] The beneficial effects of this invention are:

[0023] This invention does not directly contact the vehicle body surface, reducing dirt contamination of the vehicle body surface. When working on the inner surface of the hood, no auxiliary support is required, avoiding obstacles caused by auxiliary equipment. Moreover, the equipment is easy to operate, with the lifting and lowering of the vehicle hood replacing manual lifting operations. At the same time, the device can run with the production line, meeting the needs of both intermittent and continuous production lines. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the structure from another perspective of the present invention.

[0027] The components include: 1. Traveling rail; 2. Traveling rail pulley; 3. Traveling limit switch baffle; 4. First travel limit switch; 5. Second travel limit switch; 6. Rail hanger; 7. Lateral movement C-shaped rail; 8. C-shaped rail bearing; 9. Z-shaped bracket; 10. Lifting limit switch; 11. Limiting steel ball; 12. Lifting limit switch stop bar; 13. Counterweight; 14. Special hook; 15. Steel wire rope; 16. Mini electric hoist; 17. Drive protective cover; 18. Balancer slewing wheel; 19. Spring balancer; 20. Z-shaped support with return steel wire rope; 21. Alarm. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0032] Example 1

[0033] A convenient operating device for automobile body hood on a production line, such as Figure 1 and Figure 2 As shown, the system includes a traveling track 1, a track hanger 6, a transversely moving C-shaped track 7, a C-shaped track bearing 8, a Z-shaped bracket 9, a mini electric hoist 16 (wire rope electric hoist), and a drive protective cover 17. The track hanger 6 is fixed above the traveling track 1. The drive protective cover 17 is connected to the traveling track 1 via a traveling track pulley 2 and can slide along the traveling track 1. The mini electric hoist 16 is housed inside the drive protective cover 17. One end of the transversely moving C-shaped track 7 is fixed to the top of the drive protective cover 17. The C-shaped track bearing 8 is sleeved and connected to the outside of the transversely moving C-shaped track 7, allowing it to slide along the traveling track 1. The miniature electric hoist 16 slides along the horizontally moving C-shaped track 7, and a Z-shaped bracket 9 is fixed at its bottom. A pulley is provided at the end of the Z-shaped bracket 9. After the wire rope 15 of the miniature electric hoist 16 is wound around the pulley, the special hook 14 connected to its bottom hangs down naturally. A lifting limit switch 10 is fixed at the bottom of the Z-shaped bracket 9. From top to bottom, the wire rope 15 of the miniature electric hoist 16 between the Z-shaped bracket 9 and the special hook 14 is provided with a lifting limit switch stop bar 12, a limit steel ball 11 and a counterweight 13. The lifting limit switch stop bar 12 is movably sleeved on the outside of the wire rope 15, and the counterweight 13 is fixed on the wire rope 15.

[0034] It also includes a balancer slewing wheel 18, a spring balancer 19, and a Z-shaped bracket return wire rope 20. The balancer slewing wheel 18 is fixed to the other end of the transversely moving C-shaped track 7. The spring balancer 19 is fixed to the drive protective cover 17. The spring balancer 19 and the balancer slewing wheel 18 are connected by the Z-shaped bracket return wire rope 20. One end of the Z-shaped bracket return wire rope 20 is fixed to the spring balancer 19, and the other end passes around the balancer slewing wheel 18 and is fixed to the C-shaped track bearing 8.

[0035] It also includes a travel limit switch baffle 3, a first travel limit switch 4, and a second travel limit switch 5, wherein the travel limit switch baffle 3 is fixed to the side of the traveling track 1, and the second travel limit switch 5 and the first travel limit switch 4 are fixed to the top of the side wall of the drive protective cover 17 in sequence.

[0036] An alarm 21 is also fixed to the side wall of the drive protective cover 17, wherein the alarm 21 is electrically connected to the first travel limit switch 4 and the second travel limit switch 5 respectively.

[0037] The lifting limit switch lever 12 includes a sleeve and a rod, wherein the rod is fixed to the side wall of the sleeve, the sleeve is movably sleeved on the outside of the wire rope 15, and the bottom of the sleeve is provided with a bottom cover.

[0038] The Z-shaped bracket 9 includes a long vertical rod, a horizontal rod, and a short vertical rod. The long vertical rod and the short vertical rod are fixed to the upper and lower ends of the horizontal rod, respectively. The top of the long vertical rod is fixed to the C-shaped track bearing 8. The lifting limit switch 10 is fixed to the bottom of the horizontal rod. A pulley is provided at the junction of the horizontal rod and the short vertical rod. The wire rope 15 of the mini electric hoist 16 is wound around the pulley and passes through the short vertical rod. A special hook 14 is provided at the bottom of the part of the wire rope 15 that passes through the short vertical rod. The lifting limit switch stop bar 12 is fitted on the wire rope 15 below the short vertical rod.

[0039] After the limiting steel ball 11 on the wire rope 15 is raised to a certain height, it will hit the bottom cover of the sleeve of the lifting limit switch stop 12, which will push the lifting limit switch stop 12 to move upward, so that the rod of the lifting limit switch stop 12 triggers the lifting limit switch 10 on the Z-shaped bracket 9.

[0040] The spring balancer 19 always has a force pulling the Z-shaped bracket return wire rope 20, that is, pulling the C-shaped track bearing 8. Under normal circumstances, the C-shaped track bearing 8 should be at one end of the lateral movement C-shaped track 7, that is, the side close to the balancer rotary wheel 18.

[0041] When the special hook 14 lifts the front cover of the vehicle, the C-type track bearing 8, along with the Z-type bracket 9, will move to the right along the lateral moving C-type track 7. When the front cover is lifted, due to the downward pulling force, the C-type track bearing 8 will slide to the right along the lateral moving C-type track 7. When the wire rope 15 is in a vertical state, the C-type track bearing 8 will no longer move.

[0042] A convenient operation and control method for the front cover of a car body on a production line includes the following:

[0043] Step 1: The traveling track 1 is connected to the frame of the chamber directly above the center line of the production line vehicle body through the track hanger 6;

[0044] Step 2: The operator pulls the special hook 14, which causes the mini electric hoist 16 and the transverse C-shaped rail 7 to move on the accompanying rail 1 through the drive protective cover 17 and the accompanying rail pulley 2 until the special hook 14 moves to the required lifting position.

[0045] Step 3: Turn on the mini electric hoist 16 to lower the wire rope 15 and the special hook 14. The operator manually hooks the auxiliary handle of the front cover of the vehicle body and hooks the special hook 14 onto the auxiliary handle of the front cover of the vehicle body.

[0046] Step 4: Start the mini electric hoist 16 to continuously wind up the wire rope 15. The special hook 14 pulls the auxiliary tool to lift the front cover of the vehicle. When the front cover of the vehicle is lifted to the required angle, the mini electric hoist 16 stops running and the auxiliary tool loading and unloading operation is carried out.

[0047] Step 5: After the loading and unloading of the auxiliary tools is completed, remove the special hook 14 from the handle of the auxiliary tool. Under the action of the spring balancer 19, the Z-shaped bracket 9 returns to its starting position on the lateral movement C-shaped slide rail 7. Start the mini electric hoist 16 and drive the special hook 14 to rise through the wire rope 15 until it is higher than the top of the vehicle body.

[0048] During the loading and unloading auxiliary equipment operation in step four, the roller bed continues to run, and the mini electric hoist 16 is pulled by the auxiliary equipment on the front cover of the vehicle body on the special hook 14, sliding along the accompanying track 1 and running synchronously with the vehicle body.

[0049] During the lifting process of the front cover, in order to avoid damage to the vehicle body due to excessive lifting height, the limiting steel ball 11 on the wire rope 15 is lifted to a certain height, and then the lifting limit switch 10 on the Z-shaped bracket 9 is triggered by the lifting limit switch lever 12. The lifting limit switch 10 sends a signal to the control unit of the mini electric hoist 16, and the mini electric hoist 16 is powered off and stops running.

[0050] If the operator at the workstation fails to remove the special hook 14 in time during step five, the vehicle body will move the mini electric hoist 16 close to the end of the cable trolley. At this time, the travel limit switch baffle 3 will trigger the first travel limit switch 4, and the alarm 21 will emit an audible and visual alarm. If the mini electric hoist 16 continues to move, the travel limit switch baffle 3 will trigger the second travel limit switch 5, and the mechanized conveying system will stop to ensure that no production accident occurs.

[0051] The drive protective cover 17, the mini electric hoist 16 and the transverse moving C-shaped track 7 slide on the accompanying track 1 without power operation, relying on the special hook 14 for manual traction, or the special hook 14 is driven to slide as the vehicle body moves.

[0052] Example 2

[0053] A convenient operating device for a car body hood on a production line includes: a traveling rail 1, a traveling rail pulley 2, a travel limit switch baffle 3, a first travel limit switch 4, a second travel limit switch 5, a rail hanger 6, a transverse C-shaped rail 7, a C-shaped rail bearing 8, a Z-shaped bracket 9, a lifting limit switch 10, a limit ball 11, a lifting limit switch stop bar 12, a counterweight 13, a special hook 14, a wire rope 15, a mini electric hoist 16, a drive protective cover 17, a balancer rotary wheel 18, a spring balancer 19, a Z-shaped bracket return wire rope 20, an alarm 21, and a remote control.

[0054] Onboard Operation Technical Solution: The traveling track 1 is made of lightweight aluminum alloy and is installed on the frame directly above the center line of the production line vehicle via track hangers 6. The length of the traveling track 1 is determined according to the traveling distance of the vehicle. The mini electric hoist 16 and the lateral moving C-shaped track 7 move on the traveling track 1 via the traveling track pulleys 2. When it moves close to the set limit position, the travel limit switch baffle 3 triggers the first travel limit switch 4, and the alarm 21 emits an audible and visual alarm. If it continues to move, it triggers the second travel limit switch 5, and the mechanized conveyor system stops. The sliding movement on the traveling track 1 is unpowered and relies on the manual traction of the special hook 14, or the special hook 14 is driven to slide while the vehicle is moving.

[0055] Front Hood Lifting Technology Solution: The front hood lifting is mainly achieved using a mini electric hoist 16 via a steel wire rope 15. The main technical principle is that a signal is transmitted from the remote control's up button to the control unit inside the mini electric hoist 16, initiating the hoist's operation. As the steel wire rope 15 is continuously wound up, the dedicated hook 14 rises continuously. Simultaneously, the lateral moving C-shaped rail 7 and Z-shaped bracket 9, under the tension of the steel wire rope 15, move laterally downwards from the mini electric hoist 16 via the C-shaped rail bearing 8. When the steel wire rope 15 is in a vertical position, the Z-shaped bracket 9 stops moving. To prevent damage to the vehicle body due to excessive lifting height, the limit ball 11 on the steel wire rope 15, when lifted to a certain height, triggers the lifting limit switch 10 on the Z-shaped bracket 9 via the lifting limit switch lever 12, sending a signal to the control unit of the mini electric hoist 16, causing the electric hoist 16 to stop operating.

[0056] Front Hood Lowering Technology: The front hood lowering is mainly achieved using a mini electric hoist 16 via a steel wire rope 15. The main technical principle is that the signal is transmitted to the control unit of the mini electric hoist 16 via the down button on the remote control, and the mini electric hoist 16 starts. When it reaches a certain height, the mini electric hoist 16 stops running by pressing the stop button on the remote control 21. When the special hook 14 is in the automatic disengagement state, the spring balancer 19 installed on the mini electric hoist 16, under the action of the Z-shaped bracket return steel wire rope 20, returns the Z-shaped bracket 9 to the starting end of the lateral movement C-shaped slide rail 7, driving the special hook 14 to rise above the top of the vehicle body.

[0057] Technical solution to prevent scratches on the vehicle body: The special hook 14 used to hang the front auxiliary of the vehicle body hood is made of polytetrafluoroethylene. The steel wire rope 15, Z-shaped bracket return steel wire rope 20, and limit steel ball 11 connected to the special hook 14 are plastic coated. The counterweight 13 is made of non-metallic material.

[0058] Technical solution to prevent vehicle body surface contamination: A special hook 14 for hanging the vehicle body is designed to avoid direct contact with the front cover of the vehicle body.

[0059] The auxiliary equipment is designed to prevent dust or dirt from dripping onto the vehicle body surface from accumulating on the mini electric hoist 16. The mini electric hoist 16 is enclosed by a drive protective cover 17.

[0060] When the roller bed transports the car body into the work station and the front cover loading and unloading accessories need to be lifted by the hoisting equipment, the operator pulls the non-metallic special hook 14. Since the car body has a certain width, when pulling the special hook 14, the lifting point is moved in the Y direction to avoid the car body by moving the C-shaped rail 7 perpendicular to the traveling rail 1 laterally. At the same time, the mini electric hoist 16 is driven to run along the traveling rail 1 to the lifting position. If the special hook 14 is in a high position, it may be operated by pressing the down button on the remote control.

[0061] When the non-metallic special hook 14 is moved to the front of the vehicle body, the Z-shaped bracket 9 is moved along the transverse C-shaped slide rail 7 to the bottom of the mini electric hoist 16. At the same time, the down button of the remote control is pressed, the mini electric hoist 16 is started, the special hook 14 is lowered, and the operator manually hooks the auxiliary handle.

[0062] After confirming that the non-metallic special hook 14 has hooked the auxiliary handle, press the up button on the remote control device, the mini electric hoist 16 starts, and the special hook 14 pulls the auxiliary to lift the front cover of the vehicle.

[0063] When the front hood of the vehicle body is lifted to the required angle, the limit ball 11 on the plastic-coated steel wire rope 15 triggers the lifting limit switch 10 on the Z-shaped bracket 9, and the mini electric hoist 16 stops running to perform loading and unloading auxiliary operations.

[0064] After the loading and unloading of the auxiliary tools is completed, the special hook 14 is removed from the handle of the auxiliary tool. Under the action of the spring balancer 19 installed on the mini electric hoist 16, the Z-shaped bracket 9 returns to the starting end of the lateral movement C-shaped slide rail 7, which drives the special hook 14 to rise above the top of the vehicle body.

[0065] During the loading and unloading auxiliary equipment operation, the roller bed runs continuously, the mini electric hoist 16 is pulled by the front cover auxiliary equipment, and the accompanying track 1 runs synchronously with the vehicle body.

[0066] A travel limit switch baffle 3 is installed on the traveling track 1. If the operator at the work station fails to unhook the hook in time, the vehicle body will drive the mini electric hoist 14 to approach the end of the cable trolley. The travel limit switch baffle 3 will trigger the first travel limit switch 4 and issue an audible and visual alarm. If the travel continues and triggers the second travel limit switch 5, the mechanized conveying system will stop to ensure that no production accident occurs.

[0067] This invention is easy to operate. The front cover can be opened by connecting the hook of the device with the auxiliary tool fixed at the front end of the front cover.

[0068] The limit ball on the wire rope triggers the limit switch on the bracket, stopping the drive device and preventing damage to the front cover from excessive lifting height.

[0069] The suspension point moves in the X, Y, and Z directions via a drive unit that operates on a light rail mounted at the top of the vehicle's centerline and a lateral movement mechanism perpendicular to the light rail.

[0070] To prevent dust and oil from dripping from the miniature hoist and contaminating the vehicle body, a drive guard is used for protection.

[0071] When the special hook is in the automatic disengagement state, the Z-shaped bracket returns to the starting end of the hoist wheel slide rail due to the action of the balancer installed on the mini electric hoist, which drives the non-metallic hook to rise above the design of the top of the vehicle body.

[0072] To ensure that the Z-shaped bracket can move along the Y direction and can be moved directly below the center line of the top track, the drive protective cover will be designed with an opening.

[0073] Because the hook is relatively light, a counterweight is added to the hook to increase its sag.

[0074] To prevent the materials from scratching the vehicle body surface during operation, the hook and counterweight are made of non-metallic materials, with the hook made of polytetrafluoroethylene; the wire rope and the limiting steel balls on the wire rope are all plastic coated.

[0075] When the hook lifts the front cover of the vehicle body, if the vehicle body is being transported by a mechanized conveyor, the entire device can be pulled and slid along with the vehicle body, that is, it runs synchronously with the vehicle body along the track.

[0076] Limit switch baffles are installed on the track. If the operator at the work station fails to disconnect the lifting hook in time, the vehicle body will drive the mini electric hoist to approach the end of the cable trolley. The baffle will trigger limit switch #1 and issue an audible and visual alarm. If it continues to move and triggers limit switch #2, the mechanized conveyor system will stop to avoid damage to the equipment and vehicle body.

[0077] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, any person skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention. These simple modifications are all within the scope of protection of the present invention.

[0078] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0079] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A convenient operating device for a car body hood on a production line, characterized in that, The system includes a traveling track (1), a track hanger (6), a transverse C-shaped track (7), a C-shaped track bearing (8), a Z-shaped bracket (9), a miniature electric hoist (16), a drive guard (17), a balancer slewing wheel (18), a spring balancer (19), and a Z-shaped bracket return wire rope (20). The traveling track (1) is fixed above the track hanger (6). The drive guard (17) is connected to the traveling track (1) via a traveling track pulley (2) and can slide along the traveling track (1). The drive guard (17) contains a miniature electric hoist (16). One end of the transverse C-shaped track (7) is fixed to the top of the drive guard (17), and the C-shaped track bearing (8) is fitted and connected to the transverse C-shaped track. In addition to the movable C-shaped track (7), it can slide along the transverse movable C-shaped track (7), and a Z-shaped bracket (9) is fixed at its bottom. A pulley is provided at the end of the Z-shaped bracket (9). After the wire rope (15) of the mini electric hoist (16) is wound around the pulley, the special hook (14) connected to its bottom hangs down naturally. A lifting limit switch (10) is fixed at the bottom of the Z-shaped bracket (9). A lifting limit switch stop bar (12), a limit steel ball (11) and a counterweight (13) are sequentially provided on the wire rope (15) of the mini electric hoist (16) between the Z-shaped bracket (9) and the special hook (14). The lifting limit switch stop bar (12) is movably sleeved on the outside of the wire rope (15), and the counterweight (13) is fixed on the wire rope (15). The balancer slewing wheel (18) is fixed at the other end of the transverse C-shaped track (7), and the spring balancer (19) is fixed on the drive guard (17). The spring balancer (19) and the balancer slewing wheel (18) are connected by a Z-shaped bracket return wire rope (20). One end of the Z-shaped bracket return wire rope (20) is fixed on the spring balancer (19), and the other end passes around the balancer slewing wheel (18) and is fixed on the C-shaped track bearing (8).

2. The convenient operation device for a car body hood on a production line according to claim 1, characterized in that, It also includes a travel limit switch baffle (3), a first travel limit switch (4), and a second travel limit switch (5), wherein the travel limit switch baffle (3) is fixed on the side of the traveling track (1), and the second travel limit switch (5) and the first travel limit switch (4) are fixed on the top of the side wall of the drive protective cover (17) in sequence.

3. The convenient operation device for a car body hood on a production line according to claim 2, characterized in that, An alarm (21) is also fixed to the side wall of the drive protective cover (17), wherein the alarm (21) is electrically connected to the first travel limit switch (4) and the second travel limit switch (5).

4. The convenient operation device for a car body hood on a production line according to claim 1, characterized in that, The lifting limit switch stop bar (12) includes a sleeve and a rod, wherein the rod is fixed to the side wall of the sleeve, the sleeve is movably sleeved on the outside of the wire rope (15), and the bottom of the sleeve is provided with a bottom cover.

5. The convenient operation device for a car body hood on a production line according to claim 1, characterized in that, The Z-shaped bracket (9) includes a long vertical rod, a horizontal rod, and a short vertical rod. The long vertical rod and the short vertical rod are fixed at the upper and lower ends of the horizontal rod respectively. The top of the long vertical rod is fixed on the C-shaped track bearing (8). The lifting limit switch (10) is fixed at the bottom of the horizontal rod. A pulley is provided at the junction of the horizontal rod and the short vertical rod. The wire rope (15) of the mini electric hoist (16) is wound around the pulley and passes through the short vertical rod. A special hook (14) is provided at the bottom of the part of the wire rope (15) that passes through the short vertical rod. The lifting limit switch stop bar (12) is fitted on the wire rope (15) below the short vertical rod.

6. A control method for convenient operation of a car body hood on a production line using the convenient operation device for a car body hood as described in any one of claims 1-5, characterized in that, Includes the following: Step 1: The traveling track (1) is connected to the frame of the chamber directly above the center line of the production line vehicle body through the track hanger (6); Step 2: The operator pulls the special hook (14), which causes the mini electric hoist (16) and the transverse C-shaped rail (7) to move on the traveling rail (1) through the drive guard (17) and the traveling rail pulley (2) until the special hook (14) moves to the position required for lifting. Step 3: Turn on the mini electric hoist (16) to lower the wire rope (15) and the special hook (14) to descend. The operator manually hooks the auxiliary handle of the front cover of the vehicle body and hooks the special hook (14) onto the auxiliary handle of the front cover of the vehicle body. Step 4: Start the mini electric hoist (16) to continuously wind up the wire rope (15), and use the special hook (14) to pull the auxiliary tool to lift the front cover of the vehicle. When the front cover of the vehicle is lifted to the required angle, the mini electric hoist (16) stops running and the auxiliary tool loading and unloading operation is carried out. Step 5: After the loading and unloading of the auxiliary tools is completed, remove the special hook (14) from the handle of the auxiliary tool. Under the action of the spring balancer (19), the Z-shaped bracket (9) returns to its starting position on the lateral movement C-shaped slide rail (7). Start the mini electric hoist (16) and drive the special hook (14) to rise through the wire rope (15) until it is higher than the top of the vehicle body.

7. The control method for convenient operation of the production line vehicle body front cover according to claim 6, characterized in that, During the loading and unloading auxiliary operation in step four, the roller bed continues to run, and the mini electric hoist (16) is pulled by the auxiliary on the front cover of the vehicle body on the special hook (14), slides along the accompanying track (1), and runs synchronously with the vehicle body.

8. The control method for convenient operation of the production line vehicle body front cover according to claim 6, characterized in that, During the lifting process of the front cover, in order to avoid damage to the vehicle body caused by excessive lifting height, the limiting steel ball (11) on the wire rope (15) is lifted to a certain height, and then the lifting limit switch (10) on the Z-shaped bracket (9) is triggered by the lifting limit switch lever (12). The lifting limit switch (10) sends a signal to the control unit of the mini electric hoist (16), and the mini electric hoist (16) is powered off and stops running.

9. The control method for convenient operation of the production line vehicle body front cover according to claim 6, characterized in that, If the operator at the workstation fails to remove the special hook (14) in time during step five, the vehicle body will drive the mini electric hoist (16) to approach the end of the cable trolley. At this time, the travel limit switch baffle (3) will trigger the first travel limit switch (4), and the alarm (21) will sound and light an alarm. If the mini electric hoist (16) continues to move, the travel limit switch baffle (3) will trigger the second travel limit switch (5), and the mechanized conveying system will stop to ensure that no production accident occurs.

10. The control method for convenient operation of the production line vehicle body front cover according to claim 6, characterized in that, The drive protective cover (17), mini electric hoist (16) and lateral moving C-shaped track (7) slide on the accompanying track (1) without power operation, relying on the special hook (14) for manual traction, or driving the special hook (14) to slide when the vehicle body is running.

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