A non-powered vehicle off-line transfer mechanism, production line and method

Abstract

The present invention provides a non-powered vehicle offline transfer mechanism, production line and method, belonging to the field of automobile production technology, comprising a transfer mechanism frame, an X-direction moving unit, a Z-direction lifting unit and a support and drag block adjustment unit, wherein the X-direction moving unit is slidably connected to the transfer mechanism frame, the Z-direction lifting unit is fixed on the X-direction moving unit, and the support and drag block adjustment unit is slidably connected to the Z-direction lifting unit; the present invention can realize the rapid transfer of non-powered vehicles, while meeting the requirements of co-production of powered and non-powered vehicles and flexible offline, thereby improving production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile production, and in particular relates to a non-powered vehicle offline transfer mechanism, a production line and a method. Background Art

[0002] With the development of the automotive industry, electric vehicles have also been included in the automotive industry's development plan. However, the existing automobile assembly lines are only suitable for the production of powered vehicles. When unpowered electric vehicles arrive at the assembly line, workers are usually required to use a lifting device to transfer the unpowered vehicle to a process trolley, and then use a logistics traction trolley to tow the process trolley to transfer the unpowered vehicle to the site required for the next process. Due to the large number of vehicles coming off the assembly line, this type of transfer and placement is inefficient and cannot meet production needs.

[0003] In addition, the existing automobile assembly workshop cannot realize the simultaneous transfer of powered and non-powered vehicles, and cannot realize the co-production and flexible offline of powered and non-powered vehicles, resulting in low production efficiency. Summary of the Invention

[0004] In response to the defects or shortcomings in the existing technology, the present invention provides a non-powered vehicle offline transfer mechanism, production line and method, which can realize the rapid transfer of non-powered vehicles, while meeting the co-production of powered and non-powered vehicles and flexible offline production, thereby improving production efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides a non-powered vehicle offline transfer mechanism, comprising a transfer mechanism frame, an X-axis moving unit, a Z-axis lifting unit, and a support and drag block adjustment unit, wherein the X-axis moving unit is slidably connected to the transfer mechanism frame, the Z-axis lifting unit is fixed to the X-axis moving unit, and the support and drag block adjustment unit is slidably connected to the Z-axis lifting unit;

[0007] The X-direction moving unit includes an X-direction moving unit frame, and an X-direction moving drive motor is fixedly connected to the front side of the X-direction moving unit frame. The output shaft of the X-direction moving drive motor is connected to the reducer. The reducer is provided with two output shafts, and the two output shafts are connected to the transmission rod through a coupling. The other end of the transmission rod is connected to the driving wheels at both ends of the X-direction moving unit frame, and the driving wheels are rollingly connected to the tracks on both sides of the top of the transfer mechanism frame.

[0008] Furthermore, the transfer mechanism frame includes a plurality of support columns, which are symmetrically arranged in two rows. A top crossbeam is provided on the top of each row of support columns, and the track is fixed on the upper surface of the top crossbeam.

[0009] Furthermore, a plurality of driven wheels are provided at both ends of the X-direction moving unit frame, and the plurality of driven wheels are arranged side by side along the width direction of the X-direction moving unit frame, and a set distance is set between the plurality of driven wheels. The driving wheel and the driven wheel are arranged corresponding to the tracks on both sides of the transfer mechanism frame, and the driving wheel and the driven wheel are in contact with the tracks.

[0010] Furthermore, the Z-direction lifting unit includes a Z-direction lifting unit frame, which is n-shaped and includes a horizontal bracket and a vertical bracket. There are two vertical brackets, which are symmetrically fixed at both ends of the horizontal bracket, and the horizontal bracket is fixed to the bottom of the X-direction moving unit frame by bolts.

[0011] Furthermore, a plurality of driving sprockets are fixedly connected to the upper surface of one end of the X-direction moving unit frame, and the axes of the plurality of driving sprockets are connected through a driving shaft. A plurality of driven sprockets are fixedly connected to the other end of the X-direction moving unit frame, and the axes of the plurality of driven sprockets are connected through a driven shaft. A Z-direction lifting drive motor is also fixed to the upper surface of the X-direction moving unit frame, and the Z-direction lifting drive motor is fixed on one side of the driving sprocket, and the output shaft of the Z-direction lifting drive motor is connected to the driving shaft through a coupling.

[0012] Furthermore, a counterweight block is provided on the vertical bracket below the driving sprocket, and the counterweight block is slidably connected to the vertical bracket. Support drag block adjustment units are slidably connected to the two vertical brackets. The top of the support drag block adjustment unit located on the driving sprocket side is connected to the first chain on both sides, and the first chain bypasses the driving sprocket and is connected to the counterweight block. The top of the support drag block adjustment unit located on the driven sprocket side is connected to the second chain, and the second chain bypasses the driven sprocket and the driving sprocket and is connected to the counterweight block in turn.

[0013] Furthermore, the support drag block adjustment unit is L-shaped, including a horizontal support and a vertical support. Guide wheels are provided on both sides of the top of the vertical support. Slide rails are provided on the side walls of the vertical bracket of the Z-direction lifting unit. The slide rails are arranged along the height direction of the vertical bracket, and the guide wheels are adapted to the slide rails.

[0014] Furthermore, the lateral support is rotatably connected to a drag block on both sides of one end away from the vertical support, and a cylinder is provided on both sides of the lateral support, one end of the cylinder is hinged to the inner side of the lateral support, and the other end is hinged to the inner side of the drag block.

[0015] In the second aspect, an embodiment of the present invention also provides an offline transfer production line, including an unpowered vehicle offline transfer mechanism as described above, and also including a skateboard, a transfer elevator and an aerial transfer line. The unpowered vehicle offline transfer mechanism is arranged at the end of the skateboard's movement direction, the transfer elevator is arranged in the middle of the production line, and the aerial transfer line is located above the transfer elevator.

[0016] In a third aspect, an embodiment of the present invention further provides a method for off-line transfer, utilizing the off-line transfer production line as described above, comprising the following steps:

[0017] When a powered vehicle enters the transfer elevator through the slide, the vehicle configuration information is identified and, according to the traditional vehicle model process, it is lifted and towed by the transfer elevator. The transfer clamp grabs the powered vehicle and transfers it to the powered vehicle off-line conveyor line. The slide continues to move to the unpowered vehicle off-line transfer mechanism. At this time, the unpowered vehicle off-line transfer mechanism does not operate. The rear loading line slide continues to move, and the vehicle passes through the unpowered vehicle off-line transfer mechanism and is transferred by the transfer machine.

[0018] When the unpowered vehicle enters the transfer elevator through the slide, the vehicle configuration information is identified. At this time, the transfer elevator does not operate, and the slide continues to operate, and enters the unpowered vehicle offline transfer mechanism. The unpowered vehicle offline transfer mechanism transfers the unpowered vehicle to the process trolley, and the process trolley is towed by the logistics traction trolley to transfer the unpowered vehicle to the site required for the next process.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention sets a transfer mechanism frame, and slidingly connects an X-direction moving unit and a Z-direction lifting unit on the transfer mechanism frame, wherein the Z-direction lifting unit is slidingly connected to a support block adjustment unit, and lifts the unpowered vehicle through the support block adjustment unit, and transfers the unpowered vehicle to the process trolley under the drive of the X-direction moving unit and the Z-direction lifting unit, thereby improving the transfer efficiency of the unpowered trolley.

[0021] 2. The present invention arranges the unpowered vehicle offline transfer mechanism at the rear side of the transfer elevator, thereby meeting the requirements of the powered vehicles being transferred to the conveyor line and the unpowered vehicles being offline at the same time, realizing the co-production of powered and unpowered vehicles and flexible offline, thereby improving production and transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the unpowered vehicle offline transfer mechanism in Example 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the transfer mechanism framework structure in Example 1 of the present invention;

[0024] Figure 3 Schematic diagram of the structure of the X-direction moving unit in the first embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the Z-direction lifting unit in the first embodiment of the present invention;

[0026] Figure 5Schematic diagram of the support block adjustment structure in embodiment 1 of the present invention;

[0027] Figure 6 This is a diagram of the transport state of a powered vehicle in the second embodiment of the present invention;

[0028] Figure 7 This is a diagram of the transport state of an unpowered vehicle in the second embodiment of the present invention;

[0029] Among them, 1. Transfer mechanism frame; 101. Support column; 102. Top crossbeam; 103. Diagonal brace; 104. Connecting beam; 105. Track; 106. Side slide rail; 2. X-axis moving unit; 201. X-axis moving unit frame; 202. X-axis moving drive motor; 203. Reducer; 204. Transmission rod; 205. Driving wheel; 206. Driven wheel; 3. Z-axis lifting unit; 301. Z-axis lifting unit frame; 302. Crossbeam 303, vertical bracket; 304, side slide; 305, driving sprocket; 306, driving shaft; 307, driven sprocket; 308, driven shaft; 309, Z-axis lifting drive motor; 310, counterweight; 311, slide rail; 4, support and drag block adjustment unit; 401, lateral support; 402, vertical support; 403, guide wheel; 404, cylinder; 405, drag block; 5, slide plate; 6, transfer elevator; 7, aerial transfer line. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Example 1

[0032] A typical embodiment of the present invention is as follows Figure 1 As shown, a non-powered vehicle offline transfer mechanism includes a transfer mechanism frame 1, an X-direction moving unit 2, a Z-direction lifting unit 3 and a support drag block adjustment unit 4, wherein the X-direction moving unit 2 is slidingly connected to the transfer mechanism frame 1, the Z-direction lifting unit 3 is fixed on the X-direction moving unit 2, and the support drag block adjustment unit 4 is slidingly connected to the Z-direction lifting unit 3.

[0033] like Figure 2 The transfer mechanism frame 1 shown includes a support column 101, and there are multiple support columns 101. The multiple support columns 101 are symmetrically arranged in two rows. A top crossbeam 102 is arranged on the top of each row of support columns 101. The upper surfaces of the two top crossbeams 102 are located in the same plane. A diagonal brace 103 is arranged between the top crossbeam 102 and the support column 101 to ensure the stability of the connection between the top crossbeam 102 and the support column 101. The front and rear ends of the two top crossbeams 102 are fixedly connected by a connecting beam 104. A track 105 is provided on the upper surface of the top crossbeam 102, and the track 105 is arranged along the length direction of the top crossbeam 102.

[0034] The X-direction moving unit 2 is slidably connected to the track 105 , thereby enabling the X-direction moving unit 2 to move along the length direction of the top beam 102 .

[0035] like Figure 3 As shown, the X-direction moving unit 2 includes an X-direction moving unit frame 201, the length of the X-direction moving unit frame 201 is the same as the distance between the two rails 105, and an X-direction moving drive motor 202 is fixedly connected to the front side of the X-direction moving unit frame 201. The output shaft of the X-direction moving drive motor 202 is connected to the reducer 203, and the reducer 203 is provided with two output shafts. The two output shafts are connected to the transmission rod 204 through a coupling, and the other end of the transmission rod 204 is connected to the driving wheels 205 at both ends of the X-direction moving unit frame 201, so that the X-direction moving drive motor 202 is used to drive the driving wheels 205 located at both ends of the X-direction moving unit frame 201 to rotate. A plurality of driven wheels 206 are also provided at both ends of the X-direction moving unit frame 201, and the plurality of driven wheels 206 are arranged side by side along the width direction of the X-direction moving unit frame 201, and the plurality of driven wheels 206 are spaced a set distance apart. The driving wheel 205 and the driven wheel 206 at both ends of the X-direction moving unit frame 201 are arranged corresponding to the tracks 105 on both sides of the transfer mechanism frame 1. The driving wheel 205 and the driven wheel 206 are in contact with the tracks 105. When the driving wheel 205 rotates, it drives the X-direction moving unit 2 to move along the tracks 105, thereby realizing the movement of the X-direction moving unit 2 on the top of the transfer mechanism frame 1.

[0036] The Z-direction lifting unit 3 is fixed on the X-direction moving unit 2. Figure 4 As shown, the Z-direction lifting unit 3 includes a Z-direction lifting unit frame 301. The Z-direction lifting unit frame 301 is n-shaped and includes a horizontal bracket 302 and a vertical bracket 303. Two vertical brackets 303 are provided, and the two vertical brackets 303 are symmetrically fixed at both ends of the horizontal bracket 302. The horizontal bracket 302 is fixed to the bottom of the X-direction moving unit frame 201 by bolts, so that the Z-direction lifting unit 3 can move along with the X-direction moving unit 2.

[0037] The two vertical brackets 303 are respectively arranged close to the support columns 101 on both sides. The lower parts of the multiple support columns 101 are fixedly connected with side slide rails 106. The side slide rails 106 are arranged parallel to the tracks 105. The vertical brackets 303 are provided with side slide grooves 304. The side slide rails 106 are adapted to the side slide grooves 304. The side slide rails 106 can be placed in the side slide grooves 304, and the side slide grooves 304 can move in the side slide rails 106, so as to guide the sliding of the X-direction movable unit frame 201 and ensure the stability of the movement of the X-direction movable unit frame 201.

[0038] A plurality of driving sprockets 305 are fixedly connected to the upper surface of one end of the X-direction moving unit frame 201. In this embodiment, four driving sprockets 305 are provided. The axes of the plurality of driving sprockets 305 are connected by a driving shaft 306. Both ends of the driving shaft 306 are fixed to the X-direction moving unit frame 201 through bearing seats. A plurality of driven sprockets 307 are fixedly connected to the other end of the X-direction moving unit frame 201. In this embodiment, two driven sprockets 307 are provided. The axes of the plurality of driven sprockets 307 are connected by a driven shaft 308. Both ends of the driven shaft 308 are fixed to the X-direction moving unit frame 201 through bearing seats. The driving sprocket 305 and the driven sprocket 307 are respectively located above the two vertical brackets 303. A Z-direction lifting drive motor 309 is also fixed to the upper surface of the X-direction moving unit frame 201. The Z-direction lifting drive motor 309 is fixed on one side of the driving sprocket 305, and the output shaft of the Z-direction lifting drive motor 309 is connected to the driving shaft 306 through a coupling, so that the driving sprocket 305 is driven to rotate by the Z-direction lifting drive motor 309. A counterweight block 310 is also provided on the vertical bracket 303 below the driving sprocket 305, and the counterweight block 310 is slidably connected to the vertical bracket 303.

[0039] The two vertical brackets 303 are both slidably connected to the support and drag block adjustment unit 4 , and the support and drag block adjustment unit 4 can move up and down along the vertical brackets 303 .

[0040] A first chain is connected to both sides of the top of the support and drag adjustment unit 4 on the side of the driving sprocket 305. The first chain passes around the driving sprocket 305 and is connected to the counterweight 310. A second chain is connected to both sides of the top of the support and drag adjustment unit 4 on the side of the driven sprocket 307. The second chain passes around the driven sprocket 307 and is connected to the driving sprocket 305 and the counterweight 310. When the Z-direction lifting drive motor 309 rotates, the first and second chains drive the support and drag adjustment units 4 on both sides to rise and fall synchronously, while the counterweight 310 can reduce the load on the Z-direction lifting drive motor 309, ensuring the smooth movement of the support and drag adjustment unit 4.

[0041] like Figure 5 As shown, the support drag block adjustment unit 4 is L-shaped, including a horizontal support 401 and a vertical support 402. Guide wheels 403 are symmetrically arranged on both sides of the top of the vertical support 402. Slide rails 311 are arranged on the side walls of the vertical bracket 303 of the Z-direction lifting unit 3. The slide rails 311 are arranged along the height direction of the vertical bracket 303. The guide wheels 403 are adapted to the slide rails 311. The sliding connection between the support drag block adjustment unit 4 and the Z-direction lifting unit 3 is realized through the guide wheels 403 and the slide rails 311.

[0042] The horizontal support 401 is fixed to the bottom of the vertical support 402. A drag block 405 is provided at one end of the horizontal support 401 away from the vertical support 402. There are two drag blocks 405, which are respectively arranged on both sides of the horizontal support 401 and are rotatably connected to the horizontal support 401. Cylinders 404 are provided on both sides of the horizontal support 401. One end of the cylinder 404 is hinged to the inner side of the horizontal support 401, and the other end is hinged to the inner side of the drag block 405, so that the cylinder 404 is used to drive the drag block 405 to rotate.

[0043] During use, when the vehicle is identified as an unpowered vehicle, the X-axis moving unit 2 moves to the top of the unpowered vehicle, the Z-axis lifting unit 3 drives the support drag block adjustment unit 4 to descend to the lower part of the vehicle skirt, and the drag block 405 is adjusted to the set position by the cylinder 404 so that the drag block 405 is located below the vehicle skirt. The Z-axis lifting unit 3 rises and lifts the unpowered vehicle to the set height, the X-axis moving unit 2 moves to move the unpowered vehicle to the top of the process trolley or other transfer equipment, and the Z-axis lifting unit 3 descends to place the unpowered vehicle on the process trolley for transfer.

[0044] Example 2

[0045] This embodiment provides a production line for off-line transfer, including a non-powered vehicle off-line transfer mechanism as described in the first embodiment, such as Figure 5 and Figure 6 As shown, it also includes a slide 5, a transfer elevator 6 and an aerial transfer line 7. The slide 5 is used to place powered vehicles and unpowered vehicles, and drive the powered vehicles and unpowered vehicles to move. The unpowered vehicle offline transfer mechanism is set at the end of the slide movement direction 5, the transfer elevator 6 is set in the middle of the production line, and the aerial transfer line 7 is located above the transfer elevator 6. The transfer elevator 6 is used to lift the powered vehicle to the aerial transfer line 7. The aerial transfer line 7 transfers the powered vehicle to the next conveyor line, while the unpowered vehicle is transferred to the unpowered vehicle offline transfer mechanism via the slide 5.

[0046] The present invention arranges the unpowered vehicle off-line transfer mechanism at the rear side of the transfer elevator, thereby meeting the requirements of the powered vehicles being transferred to the conveyor line and the unpowered vehicles being taken off the line at the same time, thereby improving the production transfer efficiency.

[0047] Example 3

[0048] This embodiment provides a method for offline transfer, using an offline transfer mechanism as described in Example 2, including the following steps:

[0049] When a powered vehicle enters the transfer elevator through the slide, the vehicle configuration information is identified and, according to the traditional vehicle model process, it is lifted and towed by the transfer elevator. The transfer clamp grabs the powered vehicle and transfers it to the powered vehicle off-line conveyor line. The slide continues to move to the unpowered vehicle off-line transfer mechanism. At this time, the unpowered vehicle off-line transfer mechanism does not operate. The rear loading line slide continues to move, and the vehicle passes through the unpowered vehicle off-line transfer mechanism and is transferred by the transfer machine.

[0050] When the unpowered vehicle enters the transfer elevator through the slide, the vehicle configuration information is identified. At this time, the transfer elevator does not operate, and the slide continues to operate, and enters the unpowered vehicle offline transfer mechanism. The unpowered vehicle offline transfer mechanism transfers the unpowered vehicle to the process trolley, and the process trolley is towed by the logistics traction trolley to transfer the unpowered vehicle to the site required for the next process.

[0051] The present invention realizes the simultaneous transfer of unpowered vehicles and powered vehicles, satisfies the requirements of co-production and flexible offline of powered and unpowered vehicles in automobile assembly workshops, and improves production efficiency.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A method for off-line transfer, characterized in that: The following steps are involved: When a powered vehicle enters the transfer elevator through the slide, the vehicle configuration information is identified and, according to the traditional vehicle model process, it is lifted and towed by the transfer elevator. The transfer clamp grabs the powered vehicle and transfers it to the powered vehicle off-line conveyor line. The slide continues to move to the unpowered vehicle off-line transfer mechanism. At this time, the unpowered vehicle off-line transfer mechanism does not operate. The rear loading line slide continues to move, and the vehicle passes through the unpowered vehicle off-line transfer mechanism and is transferred by the transfer machine. When the unpowered vehicle enters the transfer elevator through the slide, the vehicle configuration information is identified. At this time, the transfer elevator does not operate, and the slide continues to operate. The vehicle enters the unpowered vehicle offline transfer mechanism, which transfers the unpowered vehicle to the process trolley. The process trolley is towed by a logistics traction trolley and transferred to the site required for the next process. The offline transfer production line for executing the method includes an offline transfer mechanism; The offline transfer mechanism includes a transfer mechanism frame, an X-direction moving unit, a Z-direction lifting unit, and a support drag block adjustment unit, wherein the X-direction moving unit is slidably connected to the transfer mechanism frame, the Z-direction lifting unit is fixed on the X-direction moving unit, and the support drag block adjustment unit is slidably connected to the Z-direction lifting unit; The X-direction moving unit includes an X-direction moving unit frame, and an X-direction moving drive motor is fixedly connected to the front side of the X-direction moving unit frame. The output shaft of the X-direction moving drive motor is connected to the reducer. The reducer is provided with two output shafts, and the two output shafts are connected to the transmission rod through a coupling. The other end of the transmission rod is connected to the driving wheels at both ends of the X-direction moving unit frame, and the driving wheels are rollingly connected to the tracks on both sides of the top of the transfer mechanism frame.

2. The offline transfer method according to claim 1, wherein: The transfer mechanism frame includes a plurality of support columns, which are symmetrically arranged in two rows. A top crossbeam is provided on the top of each row of support columns, and the track is fixed on the upper surface of the top crossbeam.

3. A method for off-line transfer according to claim 2, characterized in that: Multiple driven wheels are also provided at both ends of the X-direction moving unit frame. The multiple driven wheels are arranged side by side along the width direction of the X-direction moving unit frame, and a set distance is set between the multiple driven wheels. The driving wheel and the driven wheel are arranged corresponding to the tracks on both sides of the transfer mechanism frame, and the driving wheel and the driven wheel are in contact with the tracks.

4. The offline transfer method according to claim 1, wherein: The Z-direction lifting unit includes a Z-direction lifting unit frame, which is N-shaped and includes a horizontal bracket and a vertical bracket. There are two vertical brackets, which are symmetrically fixed at both ends of the horizontal bracket, and the horizontal bracket is fixed to the bottom of the X-direction moving unit frame by bolts.

5. The offline transfer method according to claim 4, characterized in that: A plurality of driving sprockets are fixedly connected to the upper surface of one end of the X-direction moving unit frame, and the axes of the plurality of driving sprockets are connected through a driving shaft. A plurality of driven sprockets are fixedly connected to the other end of the X-direction moving unit frame, and the axes of the plurality of driven sprockets are connected through a driven shaft. A Z-direction lifting drive motor is also fixed to the upper surface of the X-direction moving unit frame, and the Z-direction lifting drive motor is fixed on one side of the driving sprocket, and the output shaft of the Z-direction lifting drive motor is connected to the driving shaft through a coupling.

6. The offline transfer method according to claim 5, characterized in that: A counterweight is also provided on the vertical bracket below the driving sprocket, and the counterweight is slidably connected to the vertical bracket. Support and drag block adjustment units are slidably connected to the two vertical brackets. The first chain is connected to both sides of the top of the support and drag block adjustment unit on the driving sprocket side. The first chain bypasses the driving sprocket and is connected to the counterweight. The second chain is connected to both sides of the top of the support and drag block adjustment unit on the driven sprocket side. The second chain bypasses the driven sprocket and the driving sprocket and the counterweight in turn.

7. The offline transfer method according to claim 1, wherein: The support drag block adjustment unit is L-shaped and includes a horizontal support and a vertical support. Guide wheels are provided on both sides of the top of the vertical support. Slide rails are provided on the side walls of the vertical bracket of the Z-direction lifting unit. The slide rails are arranged along the height direction of the vertical bracket, and the guide wheels are adapted to the slide rails.

8. The offline transfer method according to claim 7, characterized in that: The two sides of the transverse support away from the vertical support are rotatably connected with drag blocks. Cylinders are provided on both sides of the transverse support. One end of the cylinder is hinged to the inner side of the transverse support, and the other end is hinged to the inner side of the drag block.

9. The offline transfer method according to claim 1, wherein: The off-line transfer production line also includes a skateboard, a transfer elevator and an aerial transfer line. The unpowered vehicle off-line transfer mechanism is arranged at the end of the skateboard's movement direction, the transfer elevator is arranged in the middle of the production line, and the aerial transfer line is located above the transfer elevator.

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