Automobile production line switching and lifting device and switching method thereof

Abstract

The application discloses a kind of automobile production line switching along lifting device and its switching method, its device includes base and for lifting car body lifting mechanism and for with production line is connected and keeps synchronous state along mechanism, the lifting mechanism is arranged on base, along mechanism is arranged on the side of base, the lifting mechanism includes lifting mechanism frame and for driving frame lifting lifting drive structure, lifting drive structure is arranged on base, lifting mechanism frame is provided with a group of for secondary lifting car body secondary lifting structure.Secondary lifting mechanism can satisfy the flexible conveying demand under different space constraint conditions, i.e. can satisfy the switching car body under the condition of being constrained by space size and not needing to excavate ground foundation, save investment and construction period, effectively improve the switching efficiency, production operation is stable and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile production line conveying, in particular to an automobile production line transfer follow-up lifting device and a transfer method thereof. BACKGROUND

[0002] At present, the automobile assembly workshop is mostly flexible production of slide plates or plate chains, and the man-machine engineering is gradually improved. The body height of the slide plate or the plate chain is also reduced (to meet the requirements of ergonomics), and the space is constrained. The traditional follow-up lifting mechanism transfer mode is difficult to meet the site demand, causing the transfer and transplanting of the body operation difficult, affecting the production efficiency. The existing transfer device is mostly realized by excavating the ground foundation to arrange the device to realize the lifting and lifting of the body, which has long investment and construction period.

[0003] For example, the transfer device of the automobile manufacturing assembly machine transportation system disclosed in Chinese patent CN214734090U includes an elevator main frame, an elevator follow-up mechanism, an elevator arm distance changing mechanism and an elevator tire arm mechanism. The elevator follow-up mechanism is installed on the elevator main frame, the elevator arm distance changing mechanism is installed on the elevator follow-up mechanism, and the elevator tire arm mechanism is installed on the elevator arm distance changing mechanism. The lifting height is limited, the transfer space is insufficient, and it is difficult to ensure the continuity of the transfer body, affecting the production efficiency. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an automobile production line transfer follow-up lifting device and a transfer method thereof, which can realize efficient transfer of the body under the condition of space size constraint without excavating the ground foundation.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] An automobile production line transfer follow-up lifting device, comprising a base, a lifting mechanism for lifting a body and a follow-up mechanism for connecting and keeping synchronization with a production line, the lifting mechanism being arranged on the base, and the follow-up mechanism being arranged on one side of the base, the lifting mechanism comprising a lifting mechanism frame and a lifting drive structure for driving the frame to lift, the lifting drive structure being arranged on the base, and a set of secondary lifting structures for secondary lifting the body being arranged on the lifting mechanism frame.

[0007] The base is a strip frame structure arranged along the direction of the production line.

[0008] The follow-up mechanism is a telescopic frame structure that can be laterally telescoped.

[0009] The lifting drive structure is a pair of lifting structures arranged oppositely, and the pair of lifting structures are arranged oppositely at both ends of the base, and the lifting mechanism frame is located between the pair of lifting structures.

[0010] The lifting driving structure comprises a lifting mechanism support, a lifting screw, a lifting plate and a driving unit for driving the lifting screw, the lifting mechanism support is vertically arranged on the base, the lifting screw is arranged on the lifting mechanism support, and the lifting plate is arranged on the lifting screw and connected with the lifting mechanism frame.

[0011] The secondary lifting structure comprises a front secondary lifting structure, a middle secondary lifting structure and a rear secondary lifting structure arranged side by side in front and back along the running direction of the production line.

[0012] The secondary lifting structure is arranged on one side of the base through a telescopic mechanism which can be telescoped laterally.

[0013] The base is provided with a righting lifting structure behind the rear secondary lifting structure on one side of the base, and a righting rotating cylinder for driving the righting lifting structure to rotate horizontally to adjust the position on one side of the base.

[0014] The secondary lifting structure comprises a secondary lifting cylinder arranged on the end of the telescopic mechanism and a secondary lifting supporting plate arranged on the lifting cylinder.

[0015] A switching method for switching the follow-up lifting device of the automobile production line, comprising the following steps:

[0016] S1, when the vehicle enters the device corresponding to it;

[0017] S2, the follow-up telescopic mechanism is extended to block the plate chain pin rear device and the production line to keep the synchronous state;

[0018] S3, the secondary lifting telescopic mechanism is extended;

[0019] S4, the lifting servo motor reducer works, and the lifting mechanism starts to lift to the middle position;

[0020] S5, the secondary lifting cylinder drives the secondary lifting supporting plate to start secondary lifting to lift the vehicle body;

[0021] S6, the lifting servo motor reducer works again, and the lifting mechanism is lifted to the high position;

[0022] S7, at this time, the telescopic transplanting fork starts to extend to the lower side of the vehicle body;

[0023] S8, the lifting servo motor reducer starts to work in reverse, and the lifting mechanism is lowered to the middle position;

[0024] S9, the secondary lifting cylinder drives the secondary lifting supporting plate to start to descend to the initial position;

[0025] S10, the lifting servo motor reducer works again in reverse, and the lifting mechanism is lowered to the initial position;

[0026] S11, the follow-up telescopic mechanism is retracted, and the production line is unsynchronized;

[0027] S12, the device returns to the initial position for the next switching action.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] The automobile production line switching follow-up lifting device and the switching method thereof are rationally designed, the secondary lifting mechanism can meet the flexible conveying requirements under different space constraints, that is, the switching of the vehicle body can be realized under the condition of being constrained by the size of the space and without excavation of the ground foundation, investment and construction period are saved, the switching efficiency is effectively improved, and the production operation is stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0030] The content expressed by each figure of the present specification and the marks in the figures are briefly described as follows:

[0031] Figure 1 It is a structural schematic diagram of the device of the present application.

[0032] Figure 2 It is a top view schematic diagram of the device of the present application.

[0033] Figure 3 It is an end schematic diagram of the device of the present application.

[0034] Figure 4 It is a side schematic diagram of the device of the present application.

[0035] Figure 5 It is a switching plane schematic diagram of the device of the present application.

[0036] In the figure:

[0037] 1. lifting mechanism support, 2. lifting screw, 3. lifting plate, 4. lifting mechanism frame, 5. front secondary lifting support plate, 6. front secondary lifting cylinder, 7. middle secondary lifting support plate, 8. middle secondary lifting cylinder, 9. rear secondary lifting support plate, 10. rear secondary lifting cylinder, 11. righting lifting support plate, 12. righting lifting cylinder, 13. righting rotating cylinder, 14. follow-up telescopic mechanism, 15. lifting machine gear mechanism, 16. lifting transmission shaft, 17. lifting machine servo motor speed reducer, 18. secondary lifting telescopic mechanism, 19. shift fork. DETAILED DESCRIPTION

[0038] The specific embodiments of the present application are further described in detail below by comparing the figures and through the description of the embodiments.

[0039] As Figures 1 to 5The automobile production line transfer follow-up lifting device shown in the figure comprises a base, a lifting mechanism for lifting a vehicle body, and a follow-up mechanism for keeping synchronization with the production line; the base is a strip frame structure arranged along the direction of the production line, and the follow-up mechanism is a telescopic frame structure that can be telescoped laterally, forming a telescopic follow-up mechanism 14.

[0040] The lifting mechanism is arranged on the base, and the follow-up mechanism is arranged on one side of the base; preferably, the lifting mechanism comprises a lifting mechanism frame 4 and a lifting drive structure for driving the frame to lift, the lifting drive structure is arranged on the base, and a group of secondary lifting structures for secondary lifting of the vehicle body is arranged on the lifting mechanism frame, the group of secondary lifting structures are arranged side by side in front and back, and the vehicle body is lifted stably.

[0041] The telescopic follow-up mechanism 14 is arranged behind the secondary lifting structure; preferably, the telescopic frame structure is an electric telescopic rod frame structure, and the end portion is a T-shaped structure, which is convenient for connecting with the plate chain of the production line.

[0042] The lifting drive structure is a pair of lifting structures arranged oppositely, the pair of lifting structures are arranged oppositely at both ends of the base, the lifting mechanism frame 4 is located between the pair of lifting structures, and the lifting mechanism frame is lifted synchronously and stably and reliably through the pair of lifting structures at both ends.

[0043] The pair of lifting structures are arranged symmetrically and lifted synchronously; preferably, the lifting drive structure comprises a lifting mechanism support 1, a lifting lead screw 2, a lifting plate 3, and a driving unit for driving the lifting lead screw, the lifting mechanism support is arranged vertically on the base, the lifting lead screw is arranged on the lifting mechanism support, and the lifting plate is arranged on the lifting lead screw and connected with the lifting mechanism frame.

[0044] The lifting mechanism support 1 is a vertical plate, the lower end of the vertical plate is fixed on the base, the top side of the top of the vertical plate is provided with a top plate, the bottom side of the bottom of the vertical plate is provided with a bottom plate, and the lifting lead screw is arranged between the top plate and the bottom plate, and the structure is stable and reliable.

[0045] The lifting plate 3 is a horizontal plate connected with the lifting lead screw, and the horizontal plate can be driven to lift through the rotation of the lifting lead screw; the lifting mechanism frame is a strip plate, the end portion of the strip plate is connected with the lower portion of the lifting plate, that is, the lifting mechanism frame is lifted synchronously and stably and reliably through the two end lifting plates.

[0046] The driving unit is a lifting machine servo motor reducer 17, which is arranged at the middle position of the base. The base is provided with a lifting machine transmission shaft 16 connected with the lifting machine servo motor reducer. The end of the lifting machine transmission shaft is connected with the lower end of the lifting screw of the corresponding end through the lifting machine gear mechanism 15. The lifting machine gear mechanism is a pair of helical tooth structure, so as to realize synchronous lifting work of the two-end lifting structure, which is stable and reliable. Only one lifting machine servo motor reducer is needed, which effectively reduces the cost. The two lifting structures are arranged at the ends, and the lifting machine servo motor reducer is arranged at the middle, so that the structure arrangement is reasonable.

[0047] The lifting mechanism frame forms a primary lifting structure. Preferably, the secondary lifting structure includes front, middle and rear secondary lifting structures arranged side by side in the front and rear along the running direction of the production line. The front secondary lifting structure corresponds to the front of the vehicle body, the middle secondary lifting structure corresponds to the middle of the vehicle body, and the rear secondary lifting structure corresponds to the rear of the vehicle body. The vehicle body lifting transfer is stable.

[0048] The secondary lifting structure is arranged on one side of the base through the laterally telescopic secondary lifting telescopic mechanism 18. Further, a righting lifting structure is arranged behind the rear secondary lifting structure on one side of the base, and a righting rotating cylinder for driving the righting lifting structure to rotate horizontally to adjust the position is arranged on one side of the base.

[0049] The righting lifting structure can assist in lifting and positioning the long vehicle body, which is stable and reliable. For the short vehicle body, the righting lifting structure can be rotated by the righting rotating cylinder, which is flexible and convenient to use. Preferably, the righting lifting structure includes a righting frame, the inner end of the righting frame is hinged on one side of the base, the righting rotating cylinder 13 is hinged and connected with the side of the righting frame, the outer end of the righting frame is provided with a righting lifting cylinder 12, and a righting lifting support plate 11 is arranged above the righting lifting cylinder.

[0050] The secondary lifting structure includes a secondary lifting cylinder arranged at the end of the telescopic mechanism and a secondary lifting support plate arranged above the lifting cylinder. The structures of the front, middle and rear secondary lifting structures are basically the same, which can effectively reduce the cost.

[0051] Specifically, the front secondary lifting structure includes a front secondary lifting cylinder 6 and a front secondary lifting support plate 5 arranged above the front secondary lifting cylinder; the middle secondary lifting structure includes a middle secondary lifting cylinder 8 and a middle secondary lifting support plate 7 arranged above the middle secondary lifting cylinder; and the rear secondary lifting structure includes a rear secondary lifting cylinder 10 and a rear secondary lifting support plate 9 arranged above the rear secondary lifting cylinder.

[0052] The transfer method of the automobile production line transfer follow-up lifting device includes the following steps:

[0053] S1, when the vehicle enters the device corresponding to the device;

[0054] S2, the telescopic mechanism is extended, and the plate chain pin blocking device is kept in synchronization with the production line;

[0055] S3, the secondary lifting telescopic mechanism is extended;

[0056] S4, the lifting servo motor reducer works, and the lifting mechanism starts to lift to the middle position;

[0057] S5, the secondary lifting cylinder drives the secondary lifting support plate to start secondary lifting, and the vehicle body is lifted;

[0058] S6, the lifting servo motor reducer works again, and the lifting mechanism is lifted to the high position;

[0059] S7, at this time, the telescopic transplanting fork 19 starts to extend to the lower side of the vehicle body;

[0060] S8, the lifting servo motor reducer starts to work in reverse, and the lifting mechanism is lowered to the middle position;

[0061] S9, the secondary lifting cylinder drives the secondary lifting support plate to start to descend to the initial position;

[0062] S10, the lifting servo motor reducer works again in reverse, and the lifting mechanism is lowered to the initial position;

[0063] S11, the telescopic mechanism is retracted, and the synchronization with the production line is released;

[0064] S12, the device returns to the initial position for the next switching action.

[0065] The automobile production line switching and following lifting device and the switching method thereof are reasonable in design. Through vehicle type identification, the following mechanism starts to follow the plate chain, the telescopic mechanism extends to the gap between the lower side of the vehicle skirt and the plate chain, the servo lifting mechanism starts to lift, the secondary lifting mechanism starts to lift, and the transplanting fork completes the switching of the vehicle body. The secondary lifting mechanism can meet the flexible conveying requirements under different space constraints, that is, the switching of the vehicle body can be realized under the condition of being constrained by the size of the space and without excavation of the ground foundation, investment and construction period are saved, switching efficiency is effectively improved, and production operation is stable and reliable.

[0066] The above only describes the preferred embodiments of the present application, and the above technical features can be combined to form multiple embodiments of the present application.

[0067] The above describes the present application in conjunction with the drawings, and it is obvious that the specific implementation of the present application is not limited by the above manner. Various non-essential improvements or direct application of the concept and technical solution of the present application to other occasions are within the protection scope of the present application.

Claims

1. A switching method for switching a lifting device on a vehicle production line, characterized in that: the lifting device on the vehicle production line comprises a base, a lifting mechanism for lifting a vehicle body, and a following mechanism for keeping synchronization with the production line, the lifting mechanism is arranged on the base, the following mechanism is arranged on one side of the base, the lifting mechanism comprises a lifting mechanism frame and a lifting drive structure for driving the frame to lift, the lifting drive structure is arranged on the base, and a set of secondary lifting structures for secondary lifting of the vehicle body are arranged on the lifting mechanism frame; the switching method comprises the following steps: S1, when a vehicle enters the device; S2, the following telescopic mechanism is extended to block the plate chain pin, and the device keeps synchronization with the production line; S3, the secondary lifting telescopic mechanism is extended; S4, the lifting servo motor reducer works, and the lifting mechanism starts to lift to a middle position; S5, the secondary lifting cylinder drives the secondary lifting support plate to start secondary lifting, and the vehicle body is lifted; S6, the lifting servo motor reducer works again, and the lifting mechanism is lifted to a high position; S7, at this time, the telescopic transplanting fork starts to extend to the lower side of the vehicle body; S8, the lifting servo motor reducer starts to work in reverse, and the lifting mechanism is lowered to the middle position; S9, the secondary lifting cylinder drives the secondary lifting support plate to start to descend to an initial position; S10, the lifting servo motor reducer works in reverse again, and the lifting mechanism is lowered to the initial position; S11, the following telescopic mechanism is retracted, and the synchronization with the production line is released; S12, the device returns to the initial position for the next switching action. The base is a strip frame structure arranged along the direction of the production line. The following mechanism is a telescopic frame structure that can be telescoped laterally. The lifting drive structure is a pair of lifting structures arranged oppositely at both ends of the base, and the lifting mechanism frame is located between the pair of lifting structures. The lifting drive structure comprises a lifting mechanism support, a lifting lead screw, a lifting plate, and a driving unit for driving the lifting lead screw, the lifting mechanism support is vertically arranged on the base, the lifting lead screw is arranged on the lifting mechanism support, and the lifting plate is arranged on the lifting lead screw and connected with the lifting mechanism frame. The secondary lifting structure comprises front, middle, and rear secondary lifting structures arranged side by side along the running direction of the production line. The secondary lifting structure is arranged on one side of the base through a telescopic mechanism that can be telescoped laterally. A righting lifting structure is arranged behind the rear secondary lifting structure on one side of the base, and a righting rotary cylinder for driving the righting lifting structure to rotate horizontally to adjust the position is arranged on one side of the base. The secondary lifting structure comprises a secondary lifting cylinder arranged on the end of the telescopic mechanism and a secondary lifting support plate arranged on the lifting cylinder. ​ ​ ​ ​ ​ ​ 2. The method of claim 1, wherein: ​ 3. The method of claim 1, wherein: ​ 4. The method of claim 1, wherein: ​ 5. The method of claim 1 or 4, wherein: ​ 6. The method of claim 1, wherein: ​ 7. The method of claim 6, wherein: ​ 8. The method of claim 6, wherein: ​ 9. The method of claim 7, wherein: ​

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