Body-in-white switching device and body-in-white switching method

Abstract

The invention relates to the technical field of vehicle production lines, and particularly discloses a body-in-white switching device and a body-in-white switching method.The body-in-white switching device comprises a switching position, the switching position is arranged between a front-sequence conveying line and a rear-sequence conveying line, the front-sequence conveying line comprises a front-sequence conveying skid, and the rear-sequence conveying line comprises a rear-sequence conveying skid; the front-sequence conveying skid and the rear-sequence conveying skid can bear and convey the body-in-white, a positioning assembly and a lifting assembly are arranged on the transfer position, the positioning assembly is used for positioning the front-sequence conveying skid or the rear-sequence conveying skid, and the lifting assembly is used for lifting or lowering the body-in-white. The positioning assembly is used for positioning, the lifting assembly is used for lifting or lowering the body-in-white, when the body-in-white is transferred, the positioning assembly enables the relative positions of the front-sequence conveying skid and the rear-sequence conveying skid to be consistent with the transferring position, the body-in-white only lifts and does not move front and back or left and right in the transferring process, the positioning difficulty of the body-in-white after transferring is reduced, and the transferring efficiency is improved. And the positioning precision of the body-in-white after switching is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle production lines, and in particular to a body-in-white transfer device and a body-in-white transfer method. Background Art

[0002] The vehicle production process mainly involves stamping, welding, painting and assembly processes. In the welding and painting processes, the formed body-in-white is usually transported in the form of a skid and needs to be transferred between different production lines. Especially when transferring between the welding production line and the painting production line, the welding skid and the painting skid have different structures due to their process characteristics and cannot be directly docked and transferred. The body-in-white is often required to be transferred offline, that is, transferred by forklift or aerial transportation of the hoist. In this process, the body-in-white needs to be separated from the original production line, temporarily positioned on a forklift or hoist, and then repositioned from the forklift or hoist and placed on the new production line. The temporary positioning accuracy of the body-in-white on the forklift or hoist is difficult to guarantee, and during the transfer process, the coordinates of the body-in-white along the X, Y and Z directions may all change, resulting in a decrease in the positioning accuracy of the body-in-white after the transfer, and further increasing the difficulty of positioning the body-in-white after the transfer. Summary of the invention

[0003] The object of the present invention is to provide a body-in-white transfer device and a body-in-white transfer method, so as to reduce the difficulty of positioning the body-in-white after the transfer and improve the positioning accuracy of the body-in-white after the transfer.

[0004] The present invention provides a body-in-white transfer device, which is used to transfer the body-in-white of a preceding conveyor line to a succeeding conveyor line, comprising a transfer position, which is arranged between the preceding conveyor line and the succeeding conveyor line, the preceding conveyor line includes a preceding conveying sled, and the succeeding conveyor line includes a succeeding conveying sled, both the preceding conveying sled and the succeeding conveying sled can carry and convey the body-in-white, the transfer position is provided with a positioning component and a lifting component, the positioning component is used for positioning with the preceding conveying sled or the succeeding conveying sled, and the lifting component is used for lifting or lowering the body-in-white.

[0005] As a preferred technical solution for the body-in-white transfer device, the lifting assembly includes a column, a slider, a transmission member, a lifting motor and a support plate. The column is provided in two, and the two columns are respectively provided on both sides of the transfer position. The support plate is fixedly connected to the slider, and the slider is slidably connected to the column. The lifting motor drives the slider to rise and fall along the column through the transmission member to drive the support plate to lift or lower the body-in-white.

[0006] As a preferred technical solution of the body-in-white transfer device, a lifting pad is further installed on the support plate, and the lifting pad is used to support the body-in-white.

[0007] As a preferred technical solution of the body-in-white adapter, the positioning assembly includes:

[0008] Driving parts;

[0009] A rocker arm, one end of which is connected to the output end of the driving member;

[0010] A guide plate, one end of which is rotatably connected to one end of the rocker arm;

[0011] A slide plate, the slide plate being rotatably connected to the other end of the guide plate;

[0012] A support column, wherein the support column is fixedly connected to the frame of the transfer position, and the slide plate is slidably connected to the support column;

[0013] A telescopic pin is detachably connected to the top of the slide plate, and the telescopic pin is used to position the preceding conveying slide or the succeeding conveying slide.

[0014] As a preferred technical solution of the body-in-white transfer device, the positioning components are provided in plurality, and the plurality of positioning components are arranged at intervals along the length direction of the transfer position.

[0015] As a preferred technical solution for the body-in-white transfer device, a double-width roller is installed on the transfer position, and the double-width roller is provided with an outer portion, an inner portion and a working portion, the outer portion and the inner portion are arranged in parallel, and the working portion is located between the outer portion and the inner portion, and one of the preceding conveying slide and the succeeding conveying slide rolls along a side of the working portion close to the outer portion, and the other rolls along a side of the working portion close to the inner portion.

[0016] As a preferred technical solution for the body-in-white transfer device, the preceding conveying slide rolls along a side of the working part close to the outer part via a first roller, and the succeeding conveying slide rolls along a side of the working part close to the inner part via a second roller, and the areas where the first roller and the second roller contact the working part do not overlap.

[0017] As a preferred technical solution of the body-in-white transfer device, the width of the working portion is greater than the sum of the widths of the first roller and the second roller, there is a gap between the first roller and the outer portion, and there is a gap between the second roller and the inner portion.

[0018] As a preferred technical solution for the body-in-white transfer device, it also includes a vehicle type identification component, the body-in-white has multiple models, the vehicle type identification component is used to obtain the current model of the body-in-white, the transfer position is provided with multiple stop switches at intervals along its length direction, the installation positions of the multiple stop switches correspond one-to-one to the multiple body-in-white models, and the stop switch can stop the preceding conveying sled or the succeeding conveying sled at the corresponding position according to the acquired body-in-white model.

[0019] The present invention provides a body-in-white transfer method, which uses a body-in-white transfer device according to any of the above schemes to transfer the body-in-white. The body-in-white transfer method comprises:

[0020] The preceding conveying skid moves from the preceding conveying line to the transfer position;

[0021] The positioning assembly positions the preceding conveying skid, and the lifting assembly lifts the body-in-white to separate it from the preceding conveying skid;

[0022] The positioning assembly is separated from the preceding conveying slide, and the preceding conveying slide returns to the preceding conveying line;

[0023] The subsequent conveying slide moves from the subsequent conveying line to the transfer position;

[0024] The positioning assembly positions the subsequent conveying sled, and the lifting assembly lowers the body-in-white to make it cooperate with the subsequent conveying sled;

[0025] The positioning assembly is separated from the subsequent conveying slide, and the subsequent conveying slide returns to the subsequent conveying line.

[0026] The beneficial effects of the present invention are:

[0027] The present invention provides a body-in-white transfer device, wherein a transfer position is set between a preceding conveying line and a succeeding conveying line, and a positioning component and a lifting component are set on the transfer position, wherein a preceding conveying sled or a succeeding conveying sled is positioned by the positioning component, and the body-in-white is lifted or lowered by the lifting component, and when the body-in-white is transferred, the relative positions of the preceding conveying sled and the succeeding conveying sled and the transfer position are kept consistent by the positioning component, so that the body-in-white is only lifted and lowered during the transfer process, and does not move forward, backward, left, or right, thereby reducing the difficulty of positioning the body-in-white after the transfer, and improving the positioning accuracy of the body-in-white after the transfer.

[0028] The present invention provides a body-in-white transfer method. By applying the body-in-white transfer device of the invention, firstly, a preceding conveying sled is positioned to a transfer position and the body-in-white is raised and then the preceding conveying sled is returned. Then, a succeeding conveying sled is positioned to a transfer position and the body-in-white is lowered and then the succeeding conveying sled is returned, thereby completing the inter-line transfer of the body-in-white, reducing the difficulty of the body-in-white transfer, and improving the positioning accuracy of the body-in-white after the transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A top view of the body-in-white adapter device in an embodiment of the present invention;

[0030] Figure 2 It is a front view of the transfer position in the embodiment of the present invention;

[0031] Figure 3 It is a front view of the positioning component in the embodiment of the present invention;

[0032] Figure 4 is a schematic diagram of a body-in-white at a transfer position in a first state according to an embodiment of the present invention;

[0033] Figure 5 for Figure 4 A partial enlarged view of part A;

[0034] Figure 6 is a schematic diagram of a body-in-white at a transfer position in a second state according to an embodiment of the present invention;

[0035] Figure 7 is a schematic diagram of a body-in-white at a transfer position in a third state according to an embodiment of the present invention;

[0036] Figure 8 is a schematic diagram of a body-in-white at a transfer position in a fourth state according to an embodiment of the present invention;

[0037] Fig. 9 for Figure 8 A partial enlarged view of part B.

[0038] In the figure:

[0039] 100, front conveyor line; 200, transfer station; 300, rear conveyor line; 400, body in white;

[0040] 10. Pre-conveying sled; 21. Lifting assembly; 22. Positioning assembly; 23. Double-width roller; 30. Post-conveying sled;

[0041] 11. first roller; 12. buffer block; 13. first positioning pin;

[0042] 211, column; 212, transmission member; 213, slider; 214, support plate; 215, lifting pad;

[0043] 221, driving member; 222, rocker arm; 223, guide plate; 224, slide plate; 225, support column; 226, telescopic pin;

[0044] 231, inner part; 232, outer part; 233, working part;

[0045] 31. Second roller; 32. Second positioning pin. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0050] During the welding and painting of the body-in-white in the welding and painting workshop, due to site limitations, the body-in-white needs to be transferred between different production lines. Since the production processes between different lines or different workshops are different, the corresponding sled structures of the body-in-white are also different, so it is often necessary to transfer the body-in-white offline, that is, to lift the body-in-white using equipment such as a hoist and transfer it to the corresponding sled of another line. In this process, the spatial coordinates of the body-in-white along its X-axis direction, Y-axis direction and Z-axis direction are all changed, so it is difficult to reposition the body-in-white, and the positioning accuracy of the body-in-white after the transfer is not easy to guarantee. In this regard, the present invention provides a body-in-white transfer device and a body-in-white transfer method, which reduce or avoid the movement of the body-in-white along its X-axis direction and Y-axis direction during the transfer process, thereby reducing the difficulty of positioning the body-in-white after the transfer and improving the positioning accuracy of the body-in-white after the transfer.

[0051] like Figure 1-Figure 9As shown, the present invention provides a body-in-white transfer device, which is used for inter-line transfer of body-in-white between different production lines. In this embodiment, the inter-line transfer between body-in-white welding and painting is taken as an example for explanation. In other embodiments, it can also be used for inter-line transfer of different production lines inside welding or painting. That is, it is used to transfer the body-in-white 400 of the preceding conveyor line 100 to the subsequent conveyor line 300, and the conveyor line is preferably a sled roller bed conveyor line in the prior art. The body-in-white transfer device includes a transfer position 200, which is arranged between the preceding conveyor line 100 and the subsequent conveyor line 300, and the conveying direction of the transfer position 200 is consistent with the conveying direction of the preceding conveyor line 100 and the subsequent conveyor line 300. The preceding conveyor line 100 includes a preceding conveying sled 10, and the subsequent conveyor line 300 includes a subsequent conveying sled 30, and both the preceding conveying sled 10 and the subsequent conveying sled 30 can carry and convey the body-in-white 400. The transfer position 200 is provided with a positioning assembly 22 and a lifting assembly 21. The positioning assembly 22 is used to position with the preceding conveying sled 10 or the succeeding conveying sled 30, and the lifting assembly 21 is used to lift or lower the BIW 400. To avoid interference, the preceding conveying sled 10 and the succeeding conveying sled 30 cannot be located on the transfer position 200 at the same time. During the transfer process, the preceding conveying sled 10 carries the BIW 400 into the transfer position 200, and after the positioning assembly 22 positions the preceding conveying sled 10, the lifting assembly 21 lifts the BIW 400, and then the preceding conveying sled 10 returns, and the succeeding conveying sled 30 enters the transfer position 200. After the positioning assembly 22 positions the succeeding conveying sled 30, the lifting assembly 21 lowers the BIW 400 to make it fall on the succeeding conveying sled 30, and the succeeding conveying sled 30 carries the BIW 400 back to the succeeding conveying line 300, completing the line transfer of the BIW 400. During this process, since the positioning component 22 successively positions the preceding conveying sled 10 and the succeeding conveying sled 30, that is, the preceding conveying sled 10 and the succeeding conveying sled 30 respectively maintain consistent relative positions with the transfer position 200, the body-in-white 400 will not move forward or backward or left or right during the process of rising when it separates from the preceding conveying sled 10 and falling on the succeeding conveying sled 30, that is, only the Z-axis coordinate of the body-in-white 400 changes. Therefore, the difficulty of positioning the body-in-white 400 after the transfer is reduced, and the positioning accuracy of the body-in-white 400 after the transfer is improved.

[0052] Furthermore, if Figure 3-Figure 8As shown, the lifting assembly 21 includes a column 211, a slider 213, a transmission member 212, a lifting motor and a support plate 214. Two columns 211 are provided, and the two columns 211 are respectively provided on both sides of the transfer position 200, the support plate 214 is fixedly connected to the slider 213, and the slider 213 is slidably connected to the column 211. The lifting motor drives the slider 213 to rise and fall along the column 211 through the transmission member 212, so as to drive the support plate 214 to raise or lower the white body 400. As a conventional technical means in this field, the structure and arrangement method of the lifting motor and the transmission member 212 are not described here, for example, the transmission member 212 can adopt the mode of chain drive, belt drive or steel cable drive. In order to increase the contact points with the white body 400, the column 211 is provided as a door-type structure, and the corresponding slider 213 and the support plate 214 are provided as two groups, and each group of support plates 214 and each group of sliders 213 are provided in a one-to-one correspondence with the column 211. Each group of support plates 214 is provided with two support plates 214 , so that each side of the BIW 400 has two support points, thereby ensuring the stability of the BIW 400 during the lifting process.

[0053] Optionally, in order to further improve the stability of the BIW 400 during the lifting process, a lifting pad 215 is further installed on the support plate 214, and the lifting pad 215 is used to support the BIW 400. The lifting pad 215 is preferably set as a resin part or a rubber part. On the one hand, it protects the BIW 400 from deformation during the lifting process, and on the other hand, the friction between the lifting pad 215 and the BIW 400 is relatively large, which further reduces the risk of the BIW 400 moving forward and backward or left and right due to the instantaneous impact of lifting.

[0054] Furthermore, if Figure 1-Figure 3As shown, the positioning assembly 22 includes a driving member 221, a rocker arm 222, a guide plate 223, a slide plate 224, a pillar 225 and a telescopic pin 226. The driving member 221 is preferably configured as a motor, one end of the rocker arm 222 is connected to the output end of the driving member 221, the other end of the rocker arm 222 is rotatably connected to one end of the guide plate 223, and the other end of the guide plate 223 is rotatably connected to the slide plate 224. The pillar 225 is fixedly connected to the frame of the transfer station 200, and the slide plate 224 is slidably connected to the pillar 225. Thus, the rocker arm 222, the guide plate 223, the slide plate 224 and the pillar 225 together form a crank slider 213 mechanism, and the slide plate 224 slides up and down along the pillar 225. The telescopic pin 226 is detachably connected to the top of the slide plate 224, and the telescopic pin 226 is used to position the preceding conveying sled 10 or the following conveying sled 30. As the driving member 221 drives the rocker arm 222 to rotate, the telescopic pin 226 can be raised and lowered to achieve the positioning function. The head of the telescopic pin 226 is set to a conical or hemispherical structure, and can be aligned with the hole wall of the corresponding positioning hole during the lifting process of the telescopic pin 226 to ensure positioning accuracy. The telescopic pin 226 is detachably connected to the slide plate 224, and can be replaced in time when the telescopic pin 226 is worn out, ensuring the positioning accuracy of the telescopic pin 226 for the preceding conveying slide 10 and the succeeding conveying slide 30.

[0055] Optionally, a plurality of positioning assemblies 22 may be provided, and the plurality of positioning assemblies 22 may be arranged at intervals along the length direction of the transfer position 200. Different positioning assemblies 22 correspond to the slides of different white bodies 400, and corresponding positioning assemblies 22 may be arranged at the positioning positions of the transfer position 200 according to the slides corresponding to different vehicle models. When the slide of the white body 400 of a certain vehicle model enters the transfer position 200, only the telescopic pin 226 of the corresponding positioning assembly 22 extends, and the other positioning assemblies 22 do not move, so that the slide corresponding to the white body 400 of each vehicle model has a corresponding positioning assembly 22 on the transfer position 200 to position it, so that it can be common to multiple vehicle models and reduce fixed cost investment.

[0056] For further information, please refer to Figure 4-Figure 9As shown, due to the different structures of the preceding conveying sled 10 and the succeeding conveying sled 30, the wheelbase of the first roller 11 of the preceding conveying sled 10 is different from the wheelbase of the second roller 31 of the succeeding conveying sled 30. Therefore, in order to simultaneously meet the requirement that both the preceding conveying sled 10 and the succeeding conveying sled 30 can roll at the transfer position 200, double-width rollers 23 are installed on the transfer position 200. The double-width rollers 23 are arranged in multiple groups, and the multiple groups of double-width rollers 23 are spaced apart along the length direction of the transfer position 200. Each group includes two double-width rollers 23, which are symmetrically arranged on the left and right sides of the transfer position 200. The double-width roller 23 is provided with an outer portion 232, an inner portion 231 and a working portion 233. The outer portion 232 and the inner portion 231 are arranged in parallel, and the working portion 233 is located between the outer portion 232 and the inner portion 231. The outer portion 232 is arranged near the outer side of the transfer position 200, and the inner portion 231 is arranged near the center line of the transfer position 200. One of the preceding conveying sled 10 and the succeeding conveying sled 30 rolls along the side of the working portion 233 near the outer portion 232, and the other rolls along the side of the working portion 233 near the inner portion 231, thereby simultaneously meeting the requirement that both the preceding conveying sled 10 and the succeeding conveying sled 30 can roll at the transfer position 200. The outer portion 232 and the inner portion 231 are provided to play a role of limiting, so as to prevent the first roller 11 and the second roller 31 from detaching from the double-width roller 23 during the rolling process.

[0057] Specifically, the preceding conveying slide 10 rolls along the side of the working part 233 close to the outer part 232 through the first roller 11, and the succeeding conveying slide 30 rolls along the side of the working part 233 close to the inner part 231 through the second roller 31. The areas where the first roller 11 and the second roller 31 contact the working part 233 do not overlap, thereby ensuring that the areas where the working part 233 contacts the first roller 11 and the second roller 31 respectively are evenly worn, avoiding large local wear of the working part 233, thereby avoiding the problem of unbalanced loading and positioning difficulty caused by the preceding conveying slide 10 or the succeeding conveying slide 30 during operation on the transfer position 200.

[0058] Further, the width of the working portion 233 is greater than the sum of the widths of the first roller 11 and the second roller 31, and there is a gap between the first roller 11 and the outer portion 232, and there is a gap between the second roller 31 and the inner portion 231, so as to avoid the jamming of the preceding conveying sled 10 and the succeeding conveying sled 30 during operation at the working position, and at the same time, the wear of the first roller 11, the second roller 31 and the double-width roller 23 can be reduced. The gap between the first roller 11 and the second roller 31 and the outer portion 232 and the inner portion 231, respectively, can be achieved by guide wheels, and guide wheels are respectively arranged on the outer portion 232 and the inner portion 231 to roll with the wheel side of the first roller 11 and the second roller 31, and the contact points are respectively arranged at intervals with the outer portion 232 or the inner portion 231, so as to ensure that there is a gap between the first roller 11 and the second roller 31 and the outer portion 232 and the inner portion 231, respectively, during operation. It should be noted that, in other embodiments, it can also be arranged that the preceding conveying slide 10 rolls along the side of the working part 233 close to the inner part 231 through the first roller 11, and the succeeding conveying slide 30 rolls along the side of the working part 233 close to the outer part 232 through the second roller 31, and there is a gap between the corresponding first roller 11 and the inner part 231, and there is a gap between the second roller 31 and the outer part 232. Those skilled in the art can choose different settings according to the actual structures of the preceding conveying slide 10 and the succeeding conveying slide 30.

[0059] Furthermore, the BIW transfer device further includes a vehicle model identification component. The BIW 400 has multiple models, and the vehicle model identification component is used to obtain the model of the current BIW 400. The transfer position 200 is provided with multiple stop switches at intervals along its length direction, and the installation positions of the multiple stop switches correspond to the multiple BIW models one by one. The stop switch can stop at a corresponding position according to whether the acquired BIW model is the preceding conveying sled 10 or the succeeding conveying sled 30. The vehicle model identification component can obtain the current BIW model by manual input or automatically obtaining it from the production system, and its related structure and method are the prior art in the field and will not be described in detail. The stop switch can be selected as a proximity switch or a travel switch. The installation position of the stop switch on the transfer position 200 is determined according to the body-in-white model. The structures of the preceding conveying sled 10 or the following conveying sled 30 of different models of body-in-white 400 are different, and the corresponding positions that need to be stopped on the transfer position 200 are different. Multiple stop switches are respectively set to the positions that need to stop, and only the corresponding stop switches are turned on according to the obtained body-in-white model information. When the preceding conveying sled 10 or the following conveying sled 30 reaches the position of the stop switch, it stops, and the positioning component 22 positions it. By setting the vehicle model identification component to obtain the model of the current body-in-white 400, and correspondingly setting multiple stop switches on the transfer position 200, the transfer position 200 can meet the transfer needs of more models, realize the commonality of multiple models, and reduce fixed cost investment.

[0060] The BIW transfer device in this embodiment reduces unnecessary movement of the BIW 400 during the transfer process, which reduces the difficulty of positioning after the transfer and improves the positioning accuracy of the BIW 400 after the transfer. It can also be used for multiple models. When adding new models or modifying models, the installation positions of related parts can be adjusted according to the corresponding BIW 400, thereby reducing subsequent fixed cost investment.

[0061] The present invention provides a body-in-white transfer method, which uses the body-in-white transfer device in this embodiment to transfer the body-in-white 400, and is used for line-to-line transfer of the body-in-white 400. The body-in-white transfer method includes the following steps:

[0062] The body-in-white 400 is placed on the preceding conveying sled 10, which is provided with a first positioning pin 13 and a buffer block 12. The first positioning pin 13 is used for positioning with the body-in-white 400, and the buffer block 12 is used for providing a buffer between the body-in-white 400 and the preceding conveying sled 10 to avoid bumps and injuries.

[0063] S1, the preceding conveying sled 10 moves from the preceding conveying line 100 to the transfer position 200, and stops after reaching the preset position;

[0064] The vehicle model identification component obtains the model of the body-in-white 400 and turns on the corresponding stop switch on the transfer position 200. The installation position of the stop switch is the preset position of the model of the body-in-white 400. After the preceding conveying sled 10 runs to the stop switch, the motor stops and the preceding conveying sled 10 stops.

[0065] S2, the positioning assembly 22 positions the preceding conveying sled 10, and the lifting assembly 21 lifts the BIW 400 to separate it from the preceding conveying sled 10;

[0066] After the preceding conveying slide 10 stops, the driving member 221 of the positioning assembly 22 operates, thereby driving the telescopic pin 226 to extend and position with the preceding conveying slide 10, and guiding the preceding conveying slide 10 during the positioning process. The lifting motor of the lifting assembly 21 operates, and the lifting pad 215 rises and lifts the BIW 400 to separate it from the first positioning pin 13 of the preceding conveying slide 10.

[0067] S3, the positioning assembly 22 is separated from the preceding conveying sled 10, and the preceding conveying sled 10 returns to the preceding conveying line 100;

[0068] After the BIW 400 is separated from the preceding conveying sled 10 , the driving member 221 of the positioning assembly 22 continues to operate, driving the positioning pin to retract, so that the positioning assembly 22 is separated from the preceding conveying sled 10 , and the preceding conveying sled 10 returns to the preceding conveying line 100 .

[0069] S4, the subsequent conveying sled 30 moves from the subsequent conveying line to the transfer position 200;

[0070] After the preceding conveying sled 10 returns to the preceding conveying line 100 , the succeeding conveying sled 30 moves from the succeeding conveying line 300 to the transfer position 200 , and also stops at a corresponding position according to the vehicle model information of the current body-in-white 400 .

[0071] S5, the positioning assembly 22 positions the subsequent conveying sled 30, and the lifting assembly 21 lowers the body-in-white 400 to make it cooperate with the subsequent conveying sled 30;

[0072] After the subsequent conveying slide 30 stops, the driving member 221 of the positioning assembly 22 operates, thereby driving the telescopic pin 226 to extend and position with the subsequent conveying slide 30. During the positioning process, the subsequent conveying slide 30 is guided to ensure the consistency of the positioning positions of the preceding conveying slide 10 and the subsequent conveying slide 30 on the transfer position 200. The lifting motor of the lifting assembly 21 operates, the lifting pad 215 descends and lowers the body-in-white 400. The subsequent conveying slide 30 is provided with a second positioning pin 32, and the body-in-white 400 is positioned and matched with the second positioning pin 32 after being lowered.

[0073] S6. The positioning assembly 22 is separated from the subsequent conveying sled 30, and the subsequent conveying sled 30 returns to the subsequent conveying line 300.

[0074] After the body-in-white 400 cooperates with the subsequent conveying sled 30, the driving member 221 of the positioning assembly 22 continues to operate, driving the positioning pin to retract, so that the positioning assembly 22 is separated from the subsequent conveying sled 30, and the subsequent conveying sled 30 returns to the subsequent conveying line 300, thereby completing the inter-line transfer of the body-in-white 400.

[0075] The BIW transfer method provided in the present embodiment first positions the preceding conveying sled 10 to the transfer position 200 and raises the BIW 400 and then returns the preceding conveying sled 10, and then positions the succeeding conveying sled 30 to the transfer position 200 and lowers the BIW 400 and then returns the succeeding conveying sled 30, thereby completing the line-to-line transfer of the BIW 400. During this process, the BIW 400 is only raised and lowered and does not move in the front-to-back or left-to-right directions, so that the X and Y positions of the BIW 400 do not change during the transfer process, thereby reducing the transfer difficulty of the BIW 400 and improving the positioning accuracy of the BIW 400 after the transfer.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A body-in-white transfer device, used to transfer a body-in-white (400) of a preceding conveyor line (100) to a succeeding conveyor line (300), characterized in that: The invention comprises a transfer position (200), wherein the transfer position (200) is arranged between the preceding conveying line (100) and the succeeding conveying line (300), wherein the preceding conveying line (100) comprises a preceding conveying sled (10), and the succeeding conveying line (300) comprises a succeeding conveying sled (30), wherein both the preceding conveying sled (10) and the succeeding conveying sled (30) are capable of carrying and conveying the body-in-white (400), and the transfer position (200) is provided with a positioning component (22) and a lifting component (21), wherein the positioning component (22) is used for positioning with the preceding conveying sled (10) or the succeeding conveying sled (30), and the lifting component (21) is used for raising or lowering the body-in-white (400).

2. The body-in-white adapter according to claim 1, characterized in that: The lifting assembly (21) comprises a column (211), a slider (213), a transmission member (212), a lifting motor and a support plate (214); the column (211) is provided in two pieces, and the two columns (211) are respectively provided on both sides of the transfer position (200); the support plate (214) is fixedly connected to the slider (213); the slider (213) is slidably connected to the column (211); the lifting motor drives the slider (213) to rise and fall along the column (211) through the transmission member (212), so as to drive the support plate (214) to lift or lower the body in white (400).

3. The body-in-white adapter according to claim 2, characterized in that: A lifting pad (215) is also installed on the support plate (214), and the lifting pad (215) is used to support the body in white (400).

4. The body-in-white adapter according to claim 1, characterized in that: The positioning component (22) comprises: A driving member (221); A rocker arm (222), one end of the rocker arm (222) being connected to the output end of the driving member (221); A guide plate (223), one end of the guide plate (223) being rotatably connected to one end of the rocker arm (222); A slide plate (224), wherein the slide plate (224) is rotatably connected to the other end of the guide plate (223); A support (225), wherein the support (225) is fixedly connected to the frame of the transfer position (200), and the slide plate (224) is slidably connected to the support (225); A telescopic pin (226), wherein the telescopic pin (226) is detachably connected to the top of the slide plate (224), and the telescopic pin (226) is used to position the preceding conveying sled (10) or the succeeding conveying sled (30).

5. The body-in-white adapter according to claim 4, characterized in that: The positioning components (22) are arranged in plurality, and the plurality of positioning components (22) are arranged at intervals along the length direction of the transfer position (200).

6. The body-in-white adapter according to claim 1, characterized in that: A double-width roller (23) is installed on the transfer position (200), and the double-width roller (23) is provided with an outer portion (232), an inner portion (231) and a working portion (233), the outer portion (232) and the inner portion (231) are arranged in parallel, and the working portion (233) is located between the outer portion (232) and the inner portion (231), and one of the preceding conveying sled (10) and the succeeding conveying sled (30) rolls along a side of the working portion (233) close to the outer portion (232), and the other rolls along a side of the working portion (233) close to the inner portion (231).

7. The body-in-white adapter according to claim 6, characterized in that: The preceding conveying sled (10) rolls along a side of the working portion (233) close to the outer portion (232) via a first roller (11), and the succeeding conveying sled (30) rolls along a side of the working portion (233) close to the inner portion (231) via a second roller (31), and the areas where the first roller (11) and the second roller (31) contact the working portion (233) do not overlap.

8. The body-in-white adapter according to claim 7, characterized in that: The width of the working portion (233) is greater than the sum of the widths of the first roller (11) and the second roller (31), a gap exists between the first roller (11) and the outer portion (232), and a gap exists between the second roller (31) and the inner portion (231).

9. The body-in-white adapter according to any one of claims 1 to 8, characterized in that: The vehicle body (400) also includes a vehicle model identification component, wherein the vehicle body (400) has a plurality of models, and the vehicle model identification component is used to obtain the model of the current vehicle body (400). The transfer position (200) is provided with a plurality of stop switches at intervals along its length direction, and the installation positions of the plurality of stop switches correspond to the plurality of vehicle body models one by one. The stop switches can stop the preceding conveying sled (10) or the succeeding conveying sled (30) at a corresponding position according to the obtained vehicle body model.

10. A body-in-white transfer method, characterized in that: The body-in-white (400) is transferred using the body-in-white transfer device according to any one of claims 1 to 9, and the body-in-white transfer method comprises: The preceding conveying sled (10) moves from the preceding conveying line (100) to the transfer position (200); The positioning assembly (22) positions the preceding conveying sled (10), and the lifting assembly (21) lifts the body-in-white (400) to separate it from the preceding conveying sled (10); The positioning assembly (22) is separated from the preceding conveying sled (10), and the preceding conveying sled (10) returns to the preceding conveying line (100); The subsequent conveying sled (30) moves from the subsequent conveying line (300) to the transfer position (200); The positioning assembly (22) positions the subsequent conveying sled (30), and the lifting assembly (21) lowers the body-in-white (400) to make it cooperate with the subsequent conveying sled (30); The positioning assembly (22) is separated from the subsequent conveying sled (30), and the subsequent conveying sled (30) returns to the subsequent conveying line (300).

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