Workpiece positioning and transfer mechanism and multi-station punch press

Abstract

The utility model relates to metal processing technical field discloses work piece positioning and moving mechanism, include: frame, lower mould is connected in frame, positioning component, including transmission part, transmission part and positioning piece, transmission part sliding connection is located in the position of lower mould front side in frame, transmission part can be along the back and forth direction activity, positioning piece is located below lower mould, and positioning piece passes through transmission part and transmission part drive connection, and the position that lower mould corresponds positioning piece is provided with the hole that gives way, moving component is located transmission part front, and moving component has the moving clamp that can be along the back and forth direction activity, and the moving clamp bottom side is provided with the push rod that extends along left and right direction, the utility model discloses can be realized in work piece processing by positioning piece to extend the hole that gives way to work piece positioning, and when positioning piece is moved to work piece and is received in the hole that gives way to avoid the moving activity of work piece, is favorable to realize to work piece fast moving and processing, and guarantees the processing quality to work piece.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to a workpiece positioning and conveying mechanism and a multi-station stamping machine. Background Technology

[0002] With the increasing level of automation in industrial processes, mechanical equipment capable of continuously transferring and stamping workpieces has emerged. A gripper moves the workpiece from one station to the next, and then directly performs the stamping process. To ensure the gripper can quickly transfer the workpiece between adjacent stations, each station lacks a raised limiting structure; instead, the stamping die presses down to position the workpiece. This leads to easy displacement of the workpiece during stamping, especially during frequent and rapid transfers, which can affect subsequent stamping operations. Therefore, there is an urgent need for equipment that can both position the workpiece and facilitate rapid transfer. Utility Model Content

[0003] The purpose of this utility model is to provide a workpiece positioning and transfer mechanism and a multi-station stamping machine to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is:

[0005] A workpiece positioning and transfer mechanism includes: a frame; a lower mold connected to the frame; a positioning assembly including a transmission component, a transmission part, and a positioning component, wherein the transmission component is slidably connected to the frame at a position in front of the lower mold, the transmission component is movable in the front-rear direction, the positioning component is located below the lower mold, and the positioning component is driven by the transmission part to the transmission component; the lower mold is provided with a clearance hole corresponding to the position of the positioning component; and a transfer assembly located in front of the transmission component, the transfer assembly having a transfer clamp movable in the front-rear direction, wherein a push rod extending in the left-right direction is provided on the bottom side of the transfer clamp, wherein when the transfer clamp moves forward, the push rod drives the transmission component to slide forward, and drives the positioning component downward to retract into the clearance hole through the transmission part; when the transfer clamp moves backward, the transmission component slides backward, and drives the positioning component upward to protrude out of the clearance hole through the transmission part; two positioning assemblies and two transfer assemblies are respectively symmetrically arranged on the front and rear sides of the lower mold.

[0006] This technical solution has at least the following beneficial effects: During operation, in the transfer assembly located behind the lower mold, the transfer clamp moves forward, causing its bottom push rod to approach the lower mold. This causes the push rod to drive the transmission component to slide forward, and through the transmission part, it drives the positioning component to retract downward into the clearance hole. The transfer clamp then abuts against the rear side of the workpiece. The same applies to the transfer assembly located in front of the lower mold. This achieves that the transfer clamps in the two transfer assemblies abut against and clamp the front and rear sides of the workpiece, respectively. Since the push rod extends in the left and right direction, when the transfer clamp moves the workpiece into or out of the lower mold in the left and right direction, it can maintain the state of retracting the positioning component downward into the clearance hole, thus preventing damage to the workpiece. The translational movement of the workpiece causes obstruction and interference; when the transfer clamps in the two transfer components move the workpiece into the lower die, the two transmission components also slide away from the workpiece, and drive the two positioning components to protrude upward through the clearance holes and extend into the workpiece through the two transmission parts respectively, positioning the workpiece from the inside, effectively preventing the workpiece from shifting during stamping, thereby improving the quality of workpiece processing. In this way, the positioning components can be extended from the clearance holes to position the workpiece during processing, and when the workpiece is transferred, the positioning components retract into the clearance holes to avoid the transfer of the workpiece, which is conducive to realizing rapid transfer and processing of the workpiece and ensuring the processing quality of the workpiece.

[0007] As a further improvement to the above technical solution, the transmission part includes an elastic element, a rack and a gear. The elastic element is connected between the front side of the transmission member and the frame. The elastic element has a tendency to push the transmission member backward to the end of its stroke. The rack is connected to the bottom of the transmission member. The gear is rotatably connected to the frame and meshed with the bottom side of the rack. The positioning element is eccentrically connected to the end face of the gear.

[0008] As a further improvement to the above technical solution, the rack is slidably connected to the frame in the front-rear direction.

[0009] As a further improvement to the above technical solution, the transmission component is provided with a rotating wheel corresponding to the position of the push rod. When the transfer clamp moves forward, the push rod abuts against the outer circumference of the rotating wheel.

[0010] As a further improvement to the above technical solution, a buffer block is detachably connected to the rear top side of the positioning member.

[0011] As a further improvement to the above technical solution, a buffer pad is provided on the front side of the push rod.

[0012] As a further improvement to the above technical solution, the transfer assembly includes a front-to-back translation drive, a left-to-right translation drive, and a connecting plate. The front-to-back translation drive is mounted on the frame, and the left-to-right translation drive is mounted on the front-to-back translation drive. The front-to-back translation drive can drive the front-to-back translation drive to move back and forth. The left-to-right translation drive is connected to the connecting plate, and the left-to-right translation drive can drive the connecting plate to move left and right. The transfer clamp is mounted on the connecting plate.

[0013] As a further improvement to the above technical solution, the transfer clamp and the connecting plate are detachably connected.

[0014] A multi-station stamping machine includes an upper die and the aforementioned workpiece positioning and conveying mechanism. A lifting drive is provided on the frame, and the lifting drive is connected to the upper die, which can drive the upper die to move up and down.

[0015] This technical solution has at least the following beneficial effects: During operation, the transfer clamps in the two transfer assemblies move closer to the lower mold, and the two push rods abut against the two transmission components. The two transmission parts drive the two positioning components downwards into the clearance holes. Meanwhile, the two transfer clamps abut against and clamp the workpiece originally located on the lower mold on both sides. Since the push rods extend in the left-right direction, when the transfer clamps move the workpiece out of the lower mold in the left-right direction, they maintain the position of the positioning components being retracted downwards into the clearance holes, thus preventing obstruction or interference to the translational movement of the workpiece. The next workpiece to be processed is then placed onto the lower mold, and the transfer... When the clamp returns to its reset position, the two transmission components slide away from the workpiece and drive the two positioning components to protrude upward through the clearance holes and extend into the workpiece through the two transmission parts. The workpiece is positioned from the inside. Finally, the lifting drive component drives the upper die to move downward to stamp the workpiece, effectively preventing the workpiece from shifting during stamping and thus improving the quality of workpiece processing. In this way, the positioning components can be extended from the clearance holes to position the workpiece during processing, and when the workpiece is transferred, the positioning components retract into the clearance holes to avoid the transfer of the workpiece. This facilitates the rapid transfer and processing of the workpiece and ensures the processing quality of the workpiece.

[0016] As a further improvement to the above technical solution, multiple lower molds, positioning components, and transfer components are provided along the left-right direction.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional view of the workpiece positioning and transfer mechanism of this utility model.

[0020] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure.

[0021] Figure 3 This is a three-dimensional view of the multi-station stamping machine of this utility model.

[0022] In the attached diagram: 100-frame, 210-lower mold, 211-clearance hole, 220-upper mold, 310-transmission component, 320-positioning component, 321-buffer block, 331-elastic component, 332-rack, 333-gear, 334-rotor, 410-transfer clamp, 411-push rod, 420-connecting plate. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Reference Figure 1 and Figure 2 A workpiece positioning and transfer mechanism includes a frame 100, a lower mold 210, and a positioning assembly. The lower mold 210 is connected to the frame 100. The positioning assembly includes a transmission component 310, a transmission part, and a positioning component 320. The transmission component 310 is slidably connected to the frame 100 at a position in front of the lower mold 210 and is movable in the front-rear direction. The positioning component 320 is located below the lower mold 210 and is connected to the transmission component 310 via the transmission part. The lower mold 210 has a clearance hole 211 corresponding to the position of the positioning component 320. The transfer assembly is located in front of the transmission component 310. The transfer assembly has a transfer clamp 410 that can move in the front-back direction. The bottom side of the transfer clamp 410 is provided with a push rod 411 that extends in the left-right direction. In this workpiece positioning and transfer mechanism, when the transfer clamp 410 moves forward, the push rod 411 drives the transmission member 310 to slide forward, and drives the positioning member 320 to retract downward into the clearance hole 211 through the transmission part. When the transfer clamp 410 moves backward, the transmission member 310 slides backward, and drives the positioning member 320 to protrude upward out of the clearance hole 211 through the transmission part. The positioning assembly and the transfer assembly are symmetrically arranged on the front and rear sides of the lower mold 210.

[0029] As described above, during operation, in the transfer assembly located behind the lower mold 210, the transfer clamp 410 moves forward, causing its bottom push rod 411 to approach the lower mold 210. This causes the push rod 411 to drive the transmission component 310 to slide forward, and through the transmission part, drive the positioning component 320 to retract downward into the clearance hole 211. The transfer clamp 410 then abuts against the rear side of the workpiece. The same applies to the transfer assembly located in front of the lower mold 210. This achieves that the transfer clamps 410 in the two transfer assemblies abut against and clamp the front and rear sides of the workpiece, respectively. Since the push rod 411 extends in the left and right direction, when the transfer clamp 410 moves the workpiece into or out of the lower mold 210 in the left and right direction, it can maintain the state of retracting the positioning component 320 downward into the clearance hole 211. This avoids obstructing or interfering with the translation of the workpiece. When the transfer clamps 410 in the two transfer components move the workpiece into the lower die 210, the two transmission components 310 also slide away from the workpiece. They drive the two positioning components 320 to protrude upward through the clearance holes 211 and extend into the workpiece through the two transmission parts. This positions the workpiece from the inside, effectively preventing the workpiece from shifting during stamping and thus improving the quality of workpiece processing. In this way, the positioning component 320 can extend out of the clearance hole 211 to position the workpiece during processing, and the positioning component 320 can retract into the clearance hole 211 to avoid the workpiece's transfer during transfer. This facilitates rapid transfer and processing of the workpiece and ensures the quality of workpiece processing.

[0030] When the transmission component 310 slides in the front-to-back direction, it can drive the positioning component 320 to protrude upward or retract into the clearance hole 211 through the transmission part. The positioning component 320 can move in various ways, such as moving up and down in the vertical direction. In this embodiment, the positioning component 320 protrudes upward or retracts into the clearance hole 211 in a rotating manner. Specifically, the transmission part includes an elastic component 331, a rack 332, and a gear 333. The elastic component 331 is connected between the front side of the transmission component 310 and the frame 100. The elastic component 331 has a tendency to push the transmission component 310 backward to the end of its stroke. The rack 332 is connected to the bottom of the transmission component 310. The gear 333 is rotatably connected to the frame 100 and meshes with the bottom side of the rack 332. The positioning component 320 is eccentrically connected to the end face of the gear 333. In practical applications, the elastic component 331 can be an elastic structure such as a spring or rubber. When the transfer clamp 410 moves forward, it drives the push rod 411 forward. When the push rod 411 abuts against the transmission member 310, it drives the transmission member 310 to slide forward and elastically compresses the elastic member 331. During the sliding process, the transmission member 310 drives the rack 332 to move together and transmits power to the gear 333. The gear 333 drives the positioning member 320 to rotate upward, so that it protrudes upward out of the clearance hole 211. When it is necessary to position the workpiece, the transfer clamp 410 moves backward. At this time, the elastic member 331 elastically recovers and generates a backward thrust on the transmission member 310, which drives the transmission member 310 to slide backward and reset. During the sliding process, the transmission member 310 drives the rack 332 to move together and transmits power to the gear 333. The gear 333 drives the positioning member 320 to retract downward into the clearance hole 211. In this way, the positioning member 320 can be stably driven to rotate up and down to protrude or retract into the clearance hole 211.

[0031] The rack 332 can be directly fixed to the transmission component 310. However, to further improve the stability of the rack 332's movement, in this embodiment, the rack 332 is slidably connected to the frame 100 in the front-back direction. When the transmission component 310 drives the rack 332 to move back and forth, the structure of the rack 332 slidingly connected to the frame 100 in the front-back direction improves the smoothness of the rack 332's movement and helps ensure the stability of the meshing transmission between the rack 332 and the gear 333.

[0032] When the transfer clamp 410 moves in the left-right direction, the push rod 411 is kept against the transmission member 310. Friction occurs between the push rod 411 and the transmission member 310. To reduce wear, in this embodiment, the transmission member 310 is equipped with a rotating wheel 334 corresponding to the position of the push rod 411. When the transfer clamp 410 moves forward, the push rod 411 abuts against the outer circumference of the rotating wheel 334. When the push rod 411 approaches the transmission member 310, it abuts against the rotating wheel 334 on the transmission member 310, thereby driving the push rod 411 forward through the rotating wheel 334. When the transmission member 310 moves in the left-right direction, it can drive the push rod 411 to move relative to the transmission member 310 in the left-right direction. At this time, the rotating wheel 334 rotates on the push rod 411, effectively reducing wear between the push rod 411 and the transmission member 310 and improving the smoothness of the transfer clamp 410 sliding in the left-right direction.

[0033] In the above embodiments, the positioning member 320 can be directly positioned against the workpiece. To further improve the positioning effect, in this embodiment, a buffer block 321 is detachably connected to the rear top of the positioning member 320. The buffer block 321 can be made of plastic, rubber, or other materials and is designed to fit the shape of the inner side of the workpiece. When the workpiece needs to be positioned, the positioning member 320 drives the buffer block 321 to protrude upward from the clearance hole 211, and the buffer block 321 abuts against the inner side of the workpiece for limiting the position. This can effectively improve the positioning effect of the workpiece. When the workpiece is replaced, the buffer block 321 can be removed and replaced with a suitable buffer block 321, improving the flexibility of use.

[0034] In some embodiments, a buffer pad is provided on the front side of the push rod 411. When the push rod 411 abuts against the transmission member 310, the buffer pad can reduce the impact force, better protect the transmission member 310 and the push rod 411, and reduce impact noise.

[0035] The transfer assembly has a drive structure that can move the transfer clamp 410 in the front-back and left-right directions. Specifically, the transfer assembly includes a front-back translation drive, a left-right translation drive, and a connecting plate 420. The front-back translation drive is mounted on the frame 100, and the left-right translation drive is mounted on the front-back translation drive. The front-back translation drive can move the front-back translation drive back and forth. The left-right translation drive is connected to the connecting plate 420, and can move the connecting plate 420 left and right. The transfer clamp 410 is mounted on the connecting plate 420. In practical applications, the front-back translation drive and the left-right translation drive can be respectively adopted as cylinders, electric lead screws, or hydraulic cylinders. The forward and backward translational drive and the left and right translational drive provide driving force to the transfer clamp 410 in the forward and backward and left and right directions, respectively. When it is necessary to clamp the workpiece, the forward and backward translational drive drives the transfer clamp 410 to move forward, so that the transfer clamp 410 abuts against one side of the workpiece and clamps and positions the workpiece. Then, the translational drive drives the workpiece to move in the left and right directions to realize the transfer of the workpiece. Then, the forward and backward translational drive drives the transfer clamp 410 to move backward, so that the transfer clamp 410 leaves the workpiece.

[0036] In order to improve the workpiece positioning effect of the transfer clamp 410 when changing different workpieces, in this embodiment, the transfer clamp 410 and the connecting plate 420 are detachably connected. The transfer clamp 410 can be selected and assembled according to different workpieces, thereby better adapting to different workpiece shapes and improving the workpiece positioning effect.

[0037] like Figure 3 As shown, a multi-station stamping machine includes an upper die 220 and the aforementioned workpiece positioning and conveying mechanism. A lifting drive is provided on the frame 100, which drives the upper die 220. The lifting drive can move the upper die 220 up and down. In practical applications, the lifting drive can be a cylinder, an electric lead screw, or a hydraulic cylinder, etc.

[0038] In this multi-station stamping press, during operation, the transfer clamps 410 in the two transfer components move closer to the lower die 210, and the two push rods 411 abut against the two transmission components 310. The two transmission components drive the two positioning components 320 downwards into the clearance holes 211. The two transfer clamps 410 then abut against and clamp the workpiece originally located on the lower die 210 on both sides. Since the push rods 411 extend in the left-right direction, when the transfer clamps 410 move the workpiece out of the lower die 210 in the left-right direction, they can maintain the position of the positioning components 320 downwards into the clearance holes 211, thus preventing obstruction or interference to the translational movement of the workpiece. The next workpiece to be processed is then placed onto the lower die 210, and then the two transfer components... The transfer clamp 410 inside returns to its reset position. At this time, the two transmission components 310 also slide away from the workpiece and drive the two positioning components 320 to protrude upward through the clearance hole 211 and extend into the workpiece through the two transmission parts. The workpiece is positioned from the inside. Finally, the lifting drive component drives the upper die 220 to move downward to realize the stamping of the workpiece. This effectively prevents the workpiece from shifting during the stamping process, thereby improving the quality of the workpiece processing. In this way, the positioning component 320 extends out of the clearance hole 211 to position the workpiece during the processing, and the positioning component 320 retracts into the clearance hole 211 to avoid the workpiece transfer activity during the transfer of the workpiece. This is conducive to realizing the rapid transfer and processing of the workpiece and ensuring the processing quality of the workpiece.

[0039] In a multi-station stamping press, to achieve rapid positioning, transfer, and processing of multiple workpieces in a continuously arranged array, in this embodiment, multiple lower dies 210, positioning components, and transfer components are arranged along the left-right direction. Multiple lower dies 210 can be used to place workpieces, and the corresponding positioning components can be used to position the workpieces placed on the lower dies 210. The transfer components are used to transfer workpieces from one lower die 210 to another. In practical applications, when there are multiple positioning and transfer components, a single drive source can be used within the transfer components; that is, multiple transfer clamps 410 can be arranged and fixed on the connecting plate 420. Similarly, multiple upper dies 220 can be mounted on the same lifting drive component, which drives the multiple upper dies 220 to move up and down simultaneously.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A workpiece positioning and transfer mechanism, characterized in that: include: Rack (100); The lower mold (210) is connected to the frame (100); The positioning assembly includes a transmission component (310), a transmission part, and a positioning component (320). The transmission component (310) is slidably connected to the frame (100) at the position in front of the lower mold (210). The transmission component (310) can move in the front-back direction. The positioning component (320) is located below the lower mold (210). The positioning component (320) is connected to the transmission component (310) through the transmission part. The lower mold (210) is provided with a clearance hole (211) corresponding to the position of the positioning component (320). The transfer assembly is located in front of the transmission member (310). The transfer assembly has a transfer clamp (410) that can move in the front-back direction. The bottom side of the transfer clamp (410) is provided with a push rod (411) that extends in the left-right direction. When the transfer clamp (410) moves forward, the push rod (411) drives the transmission member (310) to slide forward and drives the positioning member (320) to retract downward into the clearance hole (211) through the transmission part. When the transfer clamp (410) moves backward, the transmission member (310) slides backward and drives the positioning member (320) to protrude upward out of the clearance hole (211) through the transmission part. The positioning assembly and the transfer assembly are symmetrically arranged on the front and rear sides of the lower mold (210).

2. The workpiece positioning and transfer mechanism according to claim 1, characterized in that: The transmission unit includes an elastic element (331), a rack (332), and a gear (333). The elastic element (331) is connected between the front side of the transmission member (310) and the frame (100). The elastic element (331) has a tendency to push the transmission member (310) backward to the end of its stroke. The rack (332) is connected to the bottom of the transmission member (310). The gear (333) is rotatably connected to the frame (100). The gear (333) is meshed with the bottom side of the rack (332). The positioning element (320) is eccentrically connected to the end face of the gear (333).

3. The workpiece positioning and transfer mechanism according to claim 2, characterized in that: The rack (332) is slidably connected to the frame (100) in the front-back direction.

4. The workpiece positioning and transfer mechanism according to claim 2, characterized in that: The transmission component (310) is provided with a rotating wheel (334) corresponding to the position of the push rod (411). When the transfer clamp (410) moves forward, the push rod (411) abuts against the outer periphery of the rotating wheel (334).

5. The workpiece positioning and transfer mechanism according to claim 1, characterized in that: The positioning element (320) has a buffer block (321) detachably connected to its top rear side.

6. The workpiece positioning and transfer mechanism according to claim 1, characterized in that: A buffer pad is provided on the front side of the push rod (411).

7. The workpiece positioning and transfer mechanism according to claim 1, characterized in that: The transfer assembly includes a front-to-back translation drive, a left-to-right translation drive, and a connecting plate (420). The front-to-back translation drive is mounted on the frame (100), and the left-to-right translation drive is mounted on the front-to-back translation drive. The front-to-back translation drive can move the front-to-back translation drive back and forth. The left-to-right translation drive is connected to the connecting plate (420), and the left-to-right translation drive can move the connecting plate (420) left and right. The transfer clamp (410) is mounted on the connecting plate (420).

8. The workpiece positioning and transfer mechanism according to claim 7, characterized in that: The transfer clip (410) and the connecting plate (420) are detachably connected.

9. A multi-station stamping machine, characterized in that: Includes an upper mold (220) and a workpiece positioning and transfer mechanism as described in any one of claims 1 to 8. A lifting drive is provided on the frame (100), and the lifting drive is connected to the upper mold (220). The lifting drive can drive the upper mold (220) to move up and down.

10. The multi-station stamping machine according to claim 9, characterized in that: The lower mold (210), the positioning component, and the transfer component are arranged in multiple ways along the left and right directions.

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