Circuit board transmission device and positioning and splicing method thereof

Abstract

The invention provides a circuit board transmission device and a positioning and splicing method thereof. The transmission device of the circuit board comprises a carrier assembly which comprises a carrier and a transmission structure arranged at the bottom of the carrier; the transmission structure comprises a first groove, a first through groove and a rack assembly, the first through groove and the rack assembly are parallel to the extending direction of the transmission structure, the rack assembly is arranged on the inner side wall of the transmission structure, and the first through groove intersects with the first groove; the driving assembly comprises a gear, a connecting shaft, a connecting piece and a driving piece; the driving part is rotationally connected with one end of the connecting shaft, and the gear is connected to the other end of the connecting shaft, located in the first through groove and engaged with the rack assembly; the connecting shaft is provided with a second groove extending in the axial direction, the connecting piece is movably arranged in the second groove, and when at least part of the connecting piece is clamped in a channel defined by the bottom of the first groove and the bottom of the second groove, the driving assembly drives the carrier assembly to rotate by any angle, so that the production process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of circuit board technology, and more specifically, to a circuit board transmission device and its positioning and splicing method. Background Technology

[0002] In the current automated production process of circuit boards, the circuit boards are usually placed in a carrier that moves with the production line. During production, when the carrier needs to rotate at a small angle, the working device is usually rotated to achieve the corresponding angle. When the carrier needs to rotate at a larger angle, it needs to be transferred to an independent rotating working platform for angle adjustment, which results in a complex production process and low production efficiency. Summary of the Invention

[0003] This application addresses the shortcomings of existing methods by proposing a circuit board transmission device and its positioning and splicing method. This addresses the technical problem that when the carrier needs to rotate at a small angle, the working device is usually rotated by the corresponding angle; when the carrier needs to rotate at a larger angle, the carrier needs to be transferred to an independent rotating working platform for angle adjustment.

[0004] In a first aspect, embodiments of this application provide a transmission device for a circuit board, comprising: A vehicle assembly includes a vehicle and a transmission structure disposed at the bottom of the vehicle; the transmission structure includes a first groove, a first through slot parallel to the extending direction of the transmission structure, and a rack assembly, the rack assembly being disposed on the inner sidewall of the transmission structure, and the first through slot intersecting the first groove; A drive assembly includes a gear, a connecting shaft, a connector, and a drive component; the drive component is rotatably connected to one end of the connecting shaft, the gear is connected to the other end of the connecting shaft, the gear is located in the first through groove and meshes with the rack assembly; the connecting shaft is provided with a second groove extending axially, the connector is movably disposed in the second groove, and is configured such that when at least a portion of the connector is engaged in the channel enclosed by the bottom of the first groove and the second groove, the drive assembly drives the vehicle assembly to rotate at any angle.

[0005] In some embodiments, the drive element is rotatably connected to one end of the connecting shaft in a detachable manner.

[0006] In some embodiments, the transmission structure includes: The first side plate and the second side plate both extend downward from the bottom surface of the vehicle, both are parallel to the extension direction of the vehicle, are opposite to each other and are spaced apart; the rack assembly is provided at least one of the first side plate and the second side plate.

[0007] In some embodiments, the transmission structure further includes: The first base plate extends inward from the bottom edge of the first side plate; The second base plate extends inward from the bottom edge of the second side plate; the second through groove of the transmission structure is formed between the first base plate and the second base plate, and the connecting shaft passes through the second through groove; At least one of the first base plate and the second base plate is provided with the first groove having an opening facing the second through groove.

[0008] In some embodiments, a protrusion is provided on the inner side of the first side plate; the rack assembly is disposed on the side of the protrusion parallel to the first side plate.

[0009] In some embodiments, the drive assembly further includes a guide having a third groove opening toward the rack assembly, the gear being located within the third groove and engaging with a portion of the rack assembly located within the third groove.

[0010] In some embodiments, the guide is located within the first through slot, and the transmission structure is configured to slide relative to the guide.

[0011] In some embodiments, along the radial direction of the gear, the inner side of the gear is provided with a fourth groove with an opening facing the connecting shaft. The position of the fourth groove corresponds to the second groove. It is configured such that when at least a portion of the connector is engaged in the channel enclosed by the top of the fourth groove and the second groove, the drive assembly drives the vehicle assembly to move horizontally.

[0012] In some embodiments, the axial dimension of the connector is smaller than the axial dimension of the gear along the axis of the connecting shaft.

[0013] In some embodiments, the drive assembly further includes a magnetic attraction device disposed between the connecting shaft and the drive member.

[0014] In some embodiments, the magnetic attraction device includes: The first magnetic suction element is fixed to the output end of the driving element; The second magnetic attractor is fixed to one end of the connecting shaft located outside the transmission structure, and is configured such that the first magnetic attractor and the second magnetic attractor are magnetically attracted, so that the driving member is connected to the connecting shaft.

[0015] In some embodiments, the drive assembly further includes a mounting base; the end of the drive member remote from the connecting shaft is detachably connected to the mounting base.

[0016] In some embodiments, the carrier includes a third magnetic attraction element; The third magnetic attraction element is provided at each of the four corners of the vehicle, and any two adjacent vehicles are connected by the third magnetic attraction element at their respective corners.

[0017] Secondly, embodiments of this application provide a method for positioning and splicing a transmission device for a circuit board, used in any of the transmission devices described in the first aspect, comprising: A transmission device carrying a circuit board moves within a production line's transport system. The transmission device includes a carrier assembly and a drive assembly. The carrier assembly includes a carrier and a transmission structure disposed at the bottom of the carrier. The transmission structure includes a first groove, a first through-slot parallel to the extension direction of the transmission structure, and a rack assembly. The rack assembly is disposed on the inner wall of the transmission structure, and the first through-slot intersects with the first groove. The drive assembly includes a gear, a connecting shaft, a connector, and a drive member. The drive member is detachably rotatably connected to one end of the connecting shaft, and the gear is connected to the other end of the connecting shaft. The gear is located within the first through-slot and meshes with the rack assembly. The connecting shaft has a second groove extending axially. Upon reaching the preset workstation, the drive component is temporarily fixed to the preset workstation in a detachable manner; At least a portion of the connector is moved to the channel enclosed by the bottom of the second groove and the first groove, and the drive unit drives the gear to rotate the vehicle assembly at any angle.

[0018] In some embodiments, upon reaching a preset workstation, the drive component is temporarily and detachably fixed to the preset workstation, including: At least a portion of the connector is moved into the channel enclosed by the top of the second groove and the fourth groove inside the gear, and the drive unit drives the gear to move the vehicle assembly horizontally.

[0019] In some embodiments, the preset workstation includes the circuit board loading position of the production equipment or testing equipment.

[0020] Secondly, embodiments of this application provide a method for positioning and splicing a transmission device for a circuit board, used in any of the transmission devices described in the first aspect, comprising: The carrier assembly carrying the circuit board, as well as the gears, connecting shafts, and connectors of the drive assembly, all move within the production line's transport system. The carrier assembly includes a carrier and a transmission structure disposed at the bottom of the carrier. The transmission structure includes a first groove, a first through slot parallel to the extending direction of the transmission structure, and a rack assembly. The first through slot intersects with the first groove. The gear is connected to the top of the connecting shaft, is located within the first through slot, and meshes with the rack assembly. The connecting shaft has a second groove extending axially. When the shaft reaches the preset station of the production line, the bottom end of the connecting shaft is temporarily rotatably connected to the drive component of the drive assembly preset at the preset station in a detachable manner. At least a portion of the connector is moved to the channel enclosed by the bottom of the second groove and the first groove, and the drive unit drives the gear to rotate the vehicle assembly at any angle.

[0021] Secondly, embodiments of this application provide a method for positioning and splicing a transmission device for a circuit board, used in any of the transmission devices described in the first aspect, comprising: The carrier assembly carrying the circuit board moves in the transport system of the production line; the carrier assembly includes a carrier and a transmission structure disposed at the bottom of the carrier; the transmission structure includes a first groove and a first through slot and a rack assembly that are both parallel to the extension direction of the transmission structure, the rack assembly is disposed on the inner side wall of the transmission structure, and the first through slot intersects with the first groove; The drive assembly is detachably fixed to a preset work station; the drive assembly includes a gear, a connecting shaft, a connector, and a drive component; the drive component is detachably rotatably connected to one end of the connecting shaft, and the gear is connected to the other end of the connecting shaft; the connecting shaft is provided with a second groove extending axially; When the gear reaches the preset work station, it enters the first through slot and meshes with the rack assembly; At least a portion of the connector is moved to the channel enclosed by the bottom of the second groove and the first groove, and the drive unit drives the gear to rotate the vehicle assembly at any angle.

[0022] The beneficial technical effects of the technical solutions provided in this application include: The circuit board transmission device provided in this application includes a detachably connected carrier assembly and a drive assembly. The carrier assembly carries the circuit board, and the transmission structure of the carrier assembly is located at the bottom of the carrier. The first through groove and the rack assembly of the transmission structure are parallel to the extension direction of the transmission structure. The rack assembly is located on the inner side wall of the transmission structure, and the first groove of the transmission structure is located on the bottom plate of the transmission structure. The first through groove and the first groove intersect. The drive assembly includes a gear, a connecting shaft, a connector, and a drive member. The output end of the drive member is connected to one end of the connecting shaft. The connecting shaft passes through the bottom plate of the transmission structure, and the gear is connected to the other end of the connecting shaft. The gear is located in the first through groove and meshes with the rack assembly. The connecting shaft has a second groove that extends axially and faces outward. The connector is movably located in the second groove. When the transmission device reaches a preset station, the drive member is detachably fixed to the preset station. By controlling the position of the connector in the second groove, the horizontal movement or rotation of the carrier assembly at any angle can be achieved, thereby accurately positioning the circuit board and improving assembly efficiency and accuracy.

[0023] When the connector is at the top of the second groove, the drive unit drives the gear to rotate through the connecting shaft, causing the rack assembly to translate along the direction of the first through groove, enabling the carrier assembly to move horizontally and facilitating the precise positioning of the circuit board on a straight path. When the connector is at the bottom of the second groove, the drive unit drives the gear and the connecting shaft to rotate. Since the connector is locked in the first groove, the rotation of the gear and the connecting shaft is converted into the rotational motion of the carrier assembly around the axis of the connecting shaft, enabling the carrier assembly to drive the circuit board to rotate at any angle, meeting the needs of multi-directional assembly, thereby simplifying the production process and improving production efficiency.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a top view of a transmission device provided in an embodiment of this application; Figure 2 Figure 1 A magnified view of a portion of point A in the middle; Figure 3 This is a side view of a transmission device provided in an embodiment of this application; Figure 4 This is a schematic diagram of the main structure of a transmission device provided in an embodiment of this application; Figure 5 A top view of the structure of multiple transmission device panels provided in an embodiment of this application; Figure 6 A top view of a carrier component in a transmission device provided in an embodiment of this application; Figure 7 for Figure 6 A magnified view of a portion of point B in the middle; Figure 8 A side view schematic diagram of a carrier component in a transmission device provided for an embodiment of this application; Figure 9 This is a front view schematic diagram of a carrier component in a transmission device provided in an embodiment of this application; Figure 10 This is a front view schematic diagram of a driving component in a transmission device provided in an embodiment of this application; Figure 11 A side view schematic diagram of a driving component in a transmission device provided in an embodiment of this application; Figure 12 A top view schematic diagram of a driving component in a transmission device provided in an embodiment of this application; Figure 13 A schematic flowchart illustrating the positioning and splicing method of the first type of circuit board transmission device provided in this application embodiment; Figure 14 A schematic flowchart illustrating the positioning and splicing method of the transmission device for the second type of circuit board provided in this application embodiment; Figure 15 A schematic flowchart illustrating the positioning and splicing method of the transmission device for the third type of circuit board provided in this application embodiment.

[0026] Figure label: 1-Vehicle components; 11-Vehicle; 111-Third magnetic attachment; 112-Placement position; 12-Transmission structure; 121-First through groove; 122-Rack assembly; 123-Second through groove; 124-First base plate; 125-Second base plate; 126-First groove; 127-First side plate; 1271-Protrusion; 128-Second side plate; 2-Driver components; 21-Gear; 22-Connecting shaft; 221-Second groove; 23-Connector; 24-Drive components; 25-Guide component; 251-Third groove; 26 - Mounting base; 27-Magnetic attraction device; 271-First magnetic attraction component; 272-Second magnetic attraction component. Detailed Implementation

[0027] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0028] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by the art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0030] In the current automated production process of circuit boards, the circuit boards are usually placed in a carrier that moves with the production line. During production, when the carrier needs to rotate at a small angle, the working device is usually rotated to achieve the corresponding angle. When the carrier needs to rotate at a larger angle, it needs to be transferred to an independent rotating working platform for angle adjustment, which results in a complex production process and low production efficiency.

[0031] The technical solution of this application and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. It should be noted that the following embodiments can be referenced, learned from or combined with each other, and the same terms, similar features and similar implementation steps in different embodiments will not be described again.

[0032] This application provides a transmission device for a circuit board, such as... Figure 1-12 As shown, the transmission device includes a carrier assembly 1 and a drive assembly 2.

[0033] The vehicle assembly 1 includes a vehicle 11 and a transmission structure 12 disposed at the bottom of the vehicle 11. The transmission structure 12 includes a first groove 126, a first through groove 121 parallel to the extension direction of the transmission structure 12, and a rack assembly 122. The rack assembly 122 is disposed on the inner sidewall of the transmission structure 12, and the first through groove 121 intersects with the first groove 126.

[0034] The drive assembly 2 includes a gear 21, a connecting shaft 22, a connector 23, and a drive component 24. The drive component 24 is rotatably connected to one end of the connecting shaft 22, and the gear 21 is connected to the other end of the connecting shaft 22. The gear 21 is located in the first through groove 121 and meshes with the rack assembly 122. The connecting shaft 22 is provided with a second groove 221 extending axially. The connector 23 is movably disposed in the second groove 221 and is configured such that when at least a portion of the connector 23 is engaged in the channel enclosed by the bottom of the first groove 126 and the second groove 221, the drive assembly 2 drives the carrier assembly 1 to rotate at any angle.

[0035] The circuit board transmission device provided in this application embodiment includes a detachably connected carrier assembly 1 and a drive assembly 2. The carrier assembly 1 has a carrier 11 for carrying the circuit board. A transmission structure 12 of the carrier assembly 1 is disposed at the bottom of the carrier 11. The first through groove 121 and the rack assembly 122 of the transmission structure 12 are both parallel to the extending direction of the transmission structure 12. The rack assembly 122 is disposed on the inner sidewall of the transmission structure 12. The first groove 126 of the transmission structure 12 is disposed on the bottom plate of the transmission structure 12, and the first through groove 121 intersects with the first groove 126. The drive assembly 2 includes a gear 21, a connecting shaft 22, a connector 23, and a drive member 24. The output end of 24 is connected to one end of the connecting shaft 22. The connecting shaft 22 passes through the base plate of the transmission structure 12. The gear 21 is connected to the other end of the connecting shaft 22. The gear 21 is located in the first through groove 121 and meshes with the rack assembly 122. The connecting shaft 22 is provided with a second groove 221 that extends axially and faces outward. The connecting member 23 is movably disposed in the second groove 221. When the transmission device reaches the preset station, the driving member 24 is detachably fixed to the preset station. By controlling the position of the connecting member 23 in the second groove 221, the horizontal movement or rotation of the carrier assembly 1 can be realized at any angle, thereby accurately positioning the circuit board and improving assembly efficiency and accuracy.

[0036] When the connector 23 is at the top of the second groove 221, the drive member 24 drives the gear 21 to rotate through the connecting shaft 22, causing the rack assembly 122 to translate along the direction of the first through groove 121, so that the carrier assembly 1 can move horizontally, which facilitates the precise positioning of the circuit board on the straight path. When the connector 23 is at the bottom of the second groove 221, the drive member 24 drives the gear 21 and the connecting shaft 22 to rotate. Since the connector 23 is locked in the first groove 126, the rotation of the gear 21 and the connecting shaft 22 is converted into the rotational motion of the carrier assembly 1 around the axis of the connecting shaft 22, so that the carrier assembly 1 can drive the circuit board to rotate at any angle, meet the multi-directional assembly requirements, thereby simplifying the production process and improving production efficiency.

[0037] It should be noted that, Figure 1-2 , Figure 5-7The rack assembly 122 and drive assembly 2 are both obscured by the vehicle 11 and are indicated by dashed lines.

[0038] Optionally, in this embodiment, the rotational connection between the drive member 24 and the connecting shaft 22 includes a fixed transmission connection and a detachable transmission connection.

[0039] Alternatively, in one possible implementation of this application, such as Figure 3 and Figure 10-11 As shown, the drive component 24 is rotatably connected to one end of the connecting shaft 22 in a detachable manner.

[0040] In this embodiment, the output end of the drive component 24 is rotatably connected to one end of the connecting shaft 22 in a detachable manner, so that the transmission device can be applied to a variety of working scenarios and is compatible with the different requirements of different workstations for drive connection methods. Without replacing the core transmission components, the drive component 24 and the connecting shaft 22 can be quickly connected and separated, improving the versatility and maintenance convenience of the device.

[0041] Alternatively, in one possible implementation of this application, such as Figure 8-9 As shown, the transmission structure 12 includes: a first side plate 127 and a second side plate 128.

[0042] The first side plate 127 and the second side plate 128 both extend downward from the bottom surface of the carrier 11, are parallel to the extension direction of the carrier 11, are opposite to each other and have a gap; at least one of the first side plate 127 and the second side plate 128 is provided with a rack assembly 122.

[0043] In this embodiment, the first side plate 127 and the second side plate 128 are both perpendicular to the carrier 11. The first side plate 127 and the second side plate 128 are opposite to each other and spaced apart. At least one of the first side plate 127 and the second side plate 128 is provided with a rack assembly 122 on its inner side. The rack assembly 122 is arranged along the extension direction of the side plate, so that when the gear 21 rotates, it drives the carrier assembly 1 to move linearly along the direction of the first through groove 121 through meshing with the rack assembly 122, thereby ensuring the precise positioning of the circuit board in the horizontal direction.

[0044] Alternatively, in one possible implementation of this application, such as Figure 6-8 As shown, the transmission structure 12 also includes: a first base plate 124 and a second base plate 125.

[0045] The first base plate 124 extends inward from the bottom edge of the first side plate 127.

[0046] The second base plate 125 extends inward from the bottom edge of the second side plate 128; a second through groove 123 of the transmission structure 12 is formed between the first base plate 124 and the second base plate 125, and the connecting shaft 22 passes through the second through groove 123.

[0047] At least one of the first base plate 124 and the second base plate 125 is provided with a first groove 126 with an opening facing the second through groove 123.

[0048] In this embodiment, the first side plate 127, the second side plate 128, the first bottom plate 124 and the second bottom plate 125 together enclose a space for accommodating the gear 21 and the connecting shaft 22. The rack assembly 122 is located on the inner side wall of this space, so that the components are arranged compactly and the space occupied by the overall structure is effectively reduced.

[0049] In this embodiment, the second through groove 123 is located between the first base plate 124 and the second base plate 125, passing through the bottom of the transmission structure 12. The connecting shaft 22 passes through the second through groove 123, and the gear 21 is sleeved on the outer circumference of the connecting shaft 22 to ensure the stability and coaxiality of the rotation process. The width of the second through groove 123 is adapted to the diameter of the connecting shaft 22, allowing it to rotate smoothly while limiting radial displacement and improving transmission accuracy.

[0050] Alternatively, in one possible implementation of this application, such as Figure 6-9 As shown, a protrusion 1271 is provided on the inner side of the first side plate 127; the rack assembly 122 is disposed on the side of the protrusion 1271 that is parallel to the first side plate 127.

[0051] In this embodiment, the inner side of the first side plate 127 is provided with a protrusion 1271 extending along the extension direction of the first side plate 127. The rack assembly 122 is fixed to the side of the protrusion 1271 and is parallel to the first side plate 127, so that the rack assembly 122 is closer to the transmission center and improves the meshing stability. The protrusion 1271 can also enhance the local structural strength, prevent deformation caused by force concentration during long-term operation, and ensure transmission accuracy and equipment durability.

[0052] Alternatively, in one possible implementation of this application, such as Figure 1-3 and Figure 10-12 As shown, the drive assembly 2 also includes a guide 25; the guide 25 has a third groove 251 with an opening facing the rack assembly 122, the gear 21 is located in the third groove 251, and the gear 21 meshes with the portion of the rack assembly 122 located in the third groove 251.

[0053] In this embodiment, the guide member 25 has a U-shaped structure in a plane perpendicular to the extension direction of the transmission structure 12. The opening of the guide member 25 faces the rack assembly 122, and the protrusion 1271 is located in the U-shaped groove of the guide member 25. The gear 21 is located inside the groove and meshes with the rack assembly 122 on the protrusion 1271. The meshing section of the gear 21 and the rack assembly 122 in the guide member 25 maintains constant contact, avoiding deviation or tooth skipping during operation. The two side walls of the guide member 25 limit the gear 21, preventing axial movement of the gear 21 and improving transmission smoothness and response accuracy. Moreover, this layout optimizes space utilization, making the drive assembly 2 and the transmission structure 12 compact, while facilitating assembly and maintenance.

[0054] Alternatively, in one possible implementation of this application, such as Figure 1-3 and Figure 7 As shown, the guide 25 is located in the first through groove 121, and the transmission structure 12 is configured to slide relative to the guide 25.

[0055] In this embodiment, the guide member 25 is located in the first through groove 121, and the transmission structure 12 can slide relative to the guide member 25. Thus, the guide member 25 can guide the sliding process of the transmission structure 12, ensuring that it moves stably along a predetermined trajectory and avoiding deviation or jamming during operation.

[0056] Alternatively, in one possible implementation of this application, such as Figure 9-11 As shown, along the radial direction of gear 21, the inner side of gear 21 is provided with a fourth groove with an opening facing the connecting shaft 22. The position of the fourth groove corresponds to the second groove 221. It is configured such that when at least a part of the connecting member 23 is engaged in the channel enclosed by the top of the fourth groove and the second groove 221, the drive assembly 2 drives the carrier assembly 1 to move horizontally.

[0057] In this embodiment, the gear 21 has a fourth groove (not shown in the figure) with an opening facing the connecting shaft 22 on the side near the connecting shaft 22. The fourth groove and the second groove 221 are arranged radially in correspondence. When the connector 23 is located at the top of the second groove 221, the connector 23 is simultaneously embedded in the fourth groove. At this time, the drive member 24 drives the gear 21 to rotate through the connecting shaft 22, thereby driving the rack assembly 122 to move horizontally, thus realizing the horizontal movement of the carrier assembly 1.

[0058] Alternatively, in one possible implementation of this application, such as Figure 3 and Figure 10-12 As shown, along the axial direction of the connecting shaft 22, the axial dimension of the connecting member 23 is smaller than the axial dimension of the gear 21.

[0059] In this embodiment, when the connector 23 is located at the top of the second groove 221, the connector 23 is simultaneously embedded in the fourth groove. Since the axial dimension of the connector 23 along the connecting shaft 22 is smaller than the axial dimension of the gear 21 along the connecting shaft 22, the connector 23 is completely hidden inside the gear 21 in the axial direction, avoiding interference between the connector 23 and the guide 25 or other adjacent components during the rotation of the gear 21, thereby ensuring that the drive assembly 2 can drive the carrier assembly 1 to move smoothly and horizontally.

[0060] In this embodiment, the drive assembly 2 further includes a cylinder structure (not shown in the figure). The cylinder structure is located outside the transmission structure 12 and on the same side as the drive member 24. The cylinder structure is used to push the connecting member 23 to move along the second groove 221. When the drive assembly 2 needs to drive the carrier assembly 1 to move horizontally, the cylinder structure is activated, pushing the connecting member 23 to slide upward along the second groove 221 until it is embedded in the fourth groove, thereby locking the gear 21 and the connecting shaft 22. Then, the drive member 24 is activated, and through the meshing transmission of the gear 21 and the transmission structure 12, it drives the carrier assembly 1 to move horizontally along a predetermined trajectory. When the drive assembly 2 needs to drive the carrier assembly 1 to rotate at a certain angle, the cylinder structure retracts, driving the connecting member 23 to slide downward along the second groove 221 until the connecting member 23 is engaged in the channel enclosed by the first groove 126 and the second groove 221. Then, the drive member 24 is activated, and through the linkage between the connecting shaft 22 and the transmission structure 12, it drives the carrier assembly 1 to complete a precise angle adjustment around the rotation center.

[0061] It should be noted that, in order to avoid interference between the cylinder structure and the carrier assembly 1 during movement, after the cylinder structure pushes the connecting piece 23 to the fourth groove and before the drive component 24 is started, the piston rod can be retracted so that the cylinder structure as a whole avoids the movement path of the carrier assembly 1; after the cylinder structure pulls the connecting piece 23 back to the channel enclosed by the first groove 126 and the second groove 221 and before the drive component 24 is started, the piston rod can also be completely retracted to ensure that the cylinder structure does not interfere with the rotational movement of the carrier assembly 1, thereby realizing the orderly switching between horizontal movement and rotational movement, and improving the safety and stability of the system operation.

[0062] In some embodiments, the movement of the connector 23 can also be controlled by magnetic attraction.

[0063] Alternatively, in one possible implementation of this application, such as Figure 3-4 and Figure 10-11 As shown, the drive assembly 2 also includes a magnetic attraction device 27; the magnetic attraction device 27 is disposed between the connecting shaft 22 and the drive member 24.

[0064] In this embodiment, a magnetic suction device 27 is disposed between the connecting shaft 22 and the driving component 24. The magnetic suction device 27 enables a detachable connection between the connecting shaft 22 and the driving component 24. When the driving component 24 is operating, the magnetic suction device 27 stably transmits the driving force to the connecting shaft 22, causing the gear 21 to rotate. When encountering abnormal resistance, the magnetic suction device 27 can slide relative to the drive component 22, thus providing overload protection, preventing damage to internal parts of the drive assembly 2, and improving the overall operational safety and service life of the transmission device. Simultaneously, the magnetic suction device 27 eliminates the need for keys or fasteners to secure the driving component 24 and the connecting shaft 22, simplifying the assembly process. Furthermore, the magnetic field strength of the magnetic suction device 27 is precisely calculated to ensure stable torque transmission under rated load, while also enabling timely slippage under overload conditions, achieving dynamic protection.

[0065] Alternatively, in one possible implementation of this application, such as Figure 3-4 and Figure 10-11 As shown, the magnetic attraction device 27 includes: a first magnetic attraction element 271 and a second magnetic attraction element 272.

[0066] The first magnetic attractor 271 is fixed to the output end of the drive unit 24.

[0067] The second magnetic chuck 272 is fixed to one end of the connecting shaft 22 located outside the transmission structure 12. It is configured such that the first magnetic chuck 271 and the second magnetic chuck 272 magnetically attract each other, so that the driving member 24 is connected to the connecting shaft 22.

[0068] In this embodiment, the first magnetic chuck 271 is fixed to the output end of the drive unit 24, and the second magnetic chuck 272 is fixed to the end of the connecting shaft 22 located outside the transmission structure. The two are arranged axially opposite each other and achieve torque transmission through magnetic coupling. When the drive unit 24 is started, the first magnetic chuck 271 and the second magnetic chuck 272 rotate synchronously under the action of the magnetic field, thereby driving the connecting shaft 22 and the gear 21 to rotate. When the system encounters sudden resistance or jamming, the magnetic coupling surfaces between the two magnetic chucks slip relative to each other, cutting off the power transmission path and effectively avoiding overload stress on the mechanical components. This magnetic connection method does not require a rigid connection structure, which not only improves assembly efficiency but also facilitates maintenance and is responsive, thereby improving the reliability and safety of the transmission device.

[0069] Alternatively, in one possible implementation of this application, such as Figure 3-4 and Figure 10-11 As shown, the drive assembly 2 also includes a mounting base 26; the end of the drive member 24 away from the connecting shaft 22 is detachably connected to the mounting base 26.

[0070] In this embodiment, the mounting base 26 is fixed to a preset workstation and serves a positioning function. All components of the drive assembly 2, except for the mounting base 26, are detachably connected to the carrier assembly 1 and move along with the production line's transport system. When the drive assembly 2 reaches the position of the mounting base 26, the end of the drive component 24 furthest from the connecting shaft 22 automatically aligns and connects with the docking structure on the mounting base 26. Power and signal lines are energized through quick-connect interfaces, and the drive component 24 immediately starts working, providing power to the transmission device. The drive component 24 provides power output, driving the connecting shaft 22 and gear 21 to rotate, causing the carrier assembly 1 to move horizontally, achieving fine-tuning of the horizontal position and precise positioning. This eliminates the need for equipment identification camera positioning, reducing equipment investment costs. When the carrier assembly 1 continues to move to the next workstation, the drive component 24 automatically disengages from the mounting base 26, power is cut off, and the machine stops, completing one work cycle.

[0071] Optionally, in some embodiments, the gear 21, connecting shaft 22, connecting member 23, guide member 25, and second magnetic chuck 272 of the drive assembly 2 move together with the carrier assembly 1 along with the production line's transport system. The drive member 24 and the first magnetic chuck 271 are fixed at a preset station. When the carrier assembly 1 drives the connecting shaft 22 to the drive station, the second magnetic chuck 272 moves synchronously with the shaft into the magnetic field range of the first magnetic chuck 271. The two automatically combine through the axial magnetic field to form a stable coupling. Power is transmitted from the fixed side drive member 24 to the moving side connecting shaft 22 via magnetic attraction. The drive gear 21 rotates, driving the carrier assembly 1 to move horizontally or rotate at any angle. After completing the predetermined process operation, the carrier assembly 1 continues to move with the production line. The second magnetic chuck 272 gradually leaves the magnetic field range of the first magnetic chuck 271, the magnetic coupling is automatically disconnected, and the power transmission is terminated.

[0072] Optionally, in some embodiments, the drive assembly 2 is fixed at a preset workstation, and the carrier assembly 1 moves with the production line's transport system. When the carrier assembly 1 reaches the workstation where the drive assembly 2 is located, the transmission structure 12 of the carrier assembly 1 slides along the guide member 25, causing the guide member 25 to automatically align with the transmission structure 12. Simultaneously, the connecting shaft 22 passes into the second through groove 123, and the gear 21 meshes with the rack assembly 122 on the inner sidewall of the transmission structure 12. The drive member 24 drives the gear 21 to rotate through the connecting shaft 22, thereby causing the carrier assembly 1 to move horizontally or rotate at any angle. After the process operation is completed, the carrier assembly 1 continues to move with the production line, the transmission structure 12 disengages along the guide member 25, the connecting shaft 22 exits the second through groove 123, the gear 21 disengages from the rack assembly 122, and the power transmission terminates.

[0073] Alternatively, in one possible implementation of this application, such as Figure 1 , Figure 3 , Figure 5-6 and Figure 8 As shown, the carrier 11 includes a third magnetic attraction element 111.

[0074] The vehicle 11 is provided with a third magnetic chuck 111 at each of its four corners, and any two adjacent vehicles 11 are connected by the third magnetic chuck 111 at their respective corners.

[0075] In this embodiment, a third magnetic suction component 111 is provided at each of the four corners of the carrier 11. When it is necessary to splice the boards, the adjacent carriers are attracted and fixed to each other by the third magnetic suction component, so as to achieve rapid splicing and positioning. The spliced ​​carrier group runs synchronously as a whole without the need for other clamping mechanisms to assist in fixing, thereby reducing the complexity of the process and improving production efficiency. Moreover, the number and layout of splicing can be flexibly adjusted according to the application scenario to adapt to the conveying needs of different specifications of circuit boards, effectively improving the production line efficiency.

[0076] Optionally, in this embodiment of the application, a placement position 112 is provided on the side of the carrier 11 away from the transmission structure 12, and a plurality of placement positions 112 are arranged along the extension direction of the carrier 11, and the placement position 112 is used to support the circuit board.

[0077] Based on the same inventive concept, embodiments of this application provide a method for positioning and splicing a transmission device on a circuit board, such as... Figure 13 As shown, this positioning and splicing method is used in the transmission device of any of the above embodiments, and includes the following steps: S101: The transmission device carrying the circuit board moves in the transport system of the production line; the transmission device includes a carrier assembly 1 and a drive assembly 2; the carrier assembly 1 includes a carrier 11 and a transmission structure 12 disposed at the bottom of the carrier 11; the transmission structure 12 includes a first groove 126 and a first through groove 121 parallel to the extension direction of the transmission structure 12 and a rack assembly 122, the rack assembly 122 is disposed on the inner side wall of the transmission structure 12, and the first through groove 121 and the first groove 126 intersect; the drive assembly 2 includes a gear 21, a connecting shaft 22, a connector 23 and a drive member 24; the drive member 24 is detachably rotatably connected to one end of the connecting shaft 22, the gear 21 is connected to the other end of the connecting shaft 22, the gear 21 is located in the first through groove 121 and meshes with the rack assembly 122; the connecting shaft 22 is provided with a second groove 221 extending axially.

[0078] S102: When the preset station is reached, the drive unit 24 is temporarily fixed to the preset station in a detachable manner.

[0079] S103: At least a portion of the connector 23 is moved to the channel enclosed by the bottom of the second groove 221 and the first groove 126, and the drive member 24 drives the gear 21 to rotate the vehicle assembly 1 at any angle.

[0080] In this embodiment, the circuit board is placed in the placement position 112 of the carrier 11. The carrier assembly 1 and the drive assembly 2 move together with the production line's transport system. When it reaches the preset work station, the drive component 24 is detachably fixed at the preset work station. When the connector 23 is moved to the bottom of the second groove 221, the drive component 24 drives the gear 21 and the connecting shaft 22 to rotate. Since the connector 23 is stuck in the first groove 126, the rotation of the gear 21 and the connecting shaft 22 is converted into the rotational motion of the carrier assembly 1 around the axis of the connecting shaft 22. This allows the carrier assembly 1 to drive the circuit board to rotate at any angle, meeting the needs of multi-directional assembly, thereby simplifying the production process and improving production efficiency.

[0081] Optionally, in one possible embodiment of this application, step S102, after temporarily fixing the drive unit 24 in a detachable manner at the preset station upon reaching the preset station, includes: At least a portion of the connector 23 is moved into the channel enclosed by the top of the second groove 221 and the fourth groove inside the gear 21, and the drive member 24 drives the gear 21 to move the vehicle assembly 1 horizontally.

[0082] In this embodiment, when the connector 23 moves to the top of the second groove 221, the drive member 24 drives the gear 21 to rotate through the connecting shaft 22, causing the rack assembly 122 to translate along the direction of the first through groove 121, so that the carrier assembly 1 can move horizontally, which facilitates the precise positioning of the circuit board on a straight path.

[0083] Optionally, in one possible implementation of this application, the preset workstation includes the circuit board loading position of the production equipment or testing equipment.

[0084] Based on the same inventive concept, embodiments of this application provide a method for positioning and splicing a transmission device on a circuit board, such as... Figure 14 As shown, the transmission device for any of the above embodiments includes the following steps: S201: The carrier assembly 1 carrying the circuit board, as well as the gear 21, connecting shaft 22, and connector 23 of the drive assembly 2, all move in the transport system of the production line; the carrier assembly 1 includes a carrier 11 and a transmission structure 12 disposed at the bottom of the carrier 11; the transmission structure 12 includes a first groove 126 and a first through groove 121 and a rack assembly 122, both parallel to the extension direction of the transmission structure 12, and the first through groove 121 intersects with the first groove 126; the gear 21 is connected to the top of the connecting shaft 22, the gear 21 is located in the first through groove 121 and meshes with the rack assembly 122; the connecting shaft 22 is provided with a second groove 221 extending axially.

[0085] S202: When the shaft reaches the preset station on the production line, the bottom end of the connecting shaft 22 is temporarily rotatably connected to the drive component 24 of the drive assembly 2 preset at the preset station in a detachable manner.

[0086] S203: At least a portion of the connector 23 is moved to the channel enclosed by the bottom of the second groove 221 and the first groove 126, and the drive member 24 drives the gear 21 to rotate the vehicle assembly 1 at any angle.

[0087] In this embodiment, the circuit board is placed in the placement position 112 of the carrier 11. The gear 21, connecting shaft 22 and connector 23 of the carrier assembly 1 and the drive assembly 2 move together with the transport system of the production line. The drive component 24 of the drive assembly 2 is fixed at a preset station. When the preset station is reached, the bottom end of the connecting shaft 22 is temporarily rotatably connected to the drive component 24 in a detachable manner. When the connector 23 is moved to the bottom of the second groove 221, the drive component 24 drives the gear 21 and the connecting shaft 22 to rotate. Since the connector 23 is stuck in the first groove 126, the rotation of the gear 21 and the connecting shaft 22 is converted into the rotational motion of the carrier assembly 1 around the axis of the connecting shaft 22. This allows the carrier assembly 1 to drive the circuit board to rotate at any angle, meeting the multi-directional assembly requirements, thereby simplifying the production process and improving production efficiency.

[0088] Based on the same inventive concept, embodiments of this application provide a method for positioning and splicing a transmission device on a circuit board, such as... Figure 15 As shown, the transmission device for any of the above embodiments includes the following steps: S301: The carrier assembly 1 carrying the circuit board moves in the transport system of the production line; the carrier assembly 1 includes a carrier 11 and a transmission structure 12 disposed at the bottom of the carrier 11; the transmission structure 12 includes a first groove 126 and a first through groove 121 parallel to the extension direction of the transmission structure 12 and a rack assembly 122, the rack assembly 122 is disposed on the inner side wall of the transmission structure 12, and the first through groove 121 intersects with the first groove 126.

[0089] S302: The drive assembly 2 is detachably fixed to the preset work station; the drive assembly 2 includes a gear 21, a connecting shaft 22, a connector 23 and a drive component 24; the drive component 24 is detachably rotatably connected to one end of the connecting shaft 22, and the gear 21 is connected to the other end of the connecting shaft 22; the connecting shaft 22 is provided with a second groove 221 extending axially.

[0090] S303: When the preset station is reached, the gear 21 enters the first through groove 121 and meshes with the rack assembly 122.

[0091] S304: At least a portion of the connector 23 is moved to the channel enclosed by the bottom of the second groove 221 and the first groove 121, and the drive member 24 drives the gear 21 to rotate the vehicle assembly 1 at any angle.

[0092] In this embodiment, the circuit board is placed in the placement position 112 of the carrier 11. The carrier assembly 1 moves with the transportation system of the production line, and the drive assembly 2 is fixed at the preset work station. When the preset work station is reached, the gear 21 enters the first through groove 121 and meshes with the rack assembly 122. When the connector 23 is moved to the bottom of the second groove 221, the drive assembly 24 drives the gear 21 and the connecting shaft 22 to rotate. Since the connector 23 is stuck in the first groove 126, the rotation of the gear 21 and the connecting shaft 22 is converted into the rotational motion of the carrier assembly 1 around the axis of the connecting shaft 22. This allows the carrier assembly 1 to drive the circuit board to rotate at any angle, meeting the multi-directional assembly requirements, thereby simplifying the production process and improving production efficiency.

[0093] By applying the embodiments of this application, at least the following beneficial effects can be achieved: 1. The circuit board transmission device provided in this application embodiment includes a detachably connected carrier assembly 1 and a drive assembly 2; the carrier 11 of the carrier assembly 1 is used to carry the circuit board, the transmission structure 12 of the carrier assembly 1 is disposed at the bottom of the carrier 11, the first through groove 121 and the rack assembly 122 of the transmission structure 12 are both parallel to the extension direction of the transmission structure 12, the rack assembly 122 is disposed on the inner side wall of the transmission structure 12, the first groove 126 of the transmission structure 12 is disposed on the bottom plate of the transmission structure 12, and the first through groove 121 intersects with the first groove 126; the drive assembly 2 includes a gear 21, a connecting shaft 22, a connecting member 23 and a drive member 24 ... The output end of component 24 is connected to one end of connecting shaft 22. Connecting shaft 22 passes through the base plate of transmission structure 12. Gear 21 is connected to the other end of connecting shaft 22. Gear 21 is located in the first through groove 121 and meshes with rack assembly 122. Connecting shaft 22 is provided with a second groove 221 that extends axially and faces outward. Connecting component 23 is movably disposed in the second groove 221. When the transmission device reaches the preset station, driving component 24 is detachably fixed to the preset station. By controlling the position of connecting component 23 in the second groove 221, the horizontal movement or rotation of carrier assembly 1 can be realized at any angle, thereby accurately positioning the circuit board and improving assembly efficiency and accuracy.

[0094] When the connector 23 is at the top of the second groove 221, the drive member 24 drives the gear 21 to rotate through the connecting shaft 22, causing the rack assembly 122 to translate along the direction of the first through groove 121, so that the carrier assembly 1 can move horizontally, which facilitates the precise positioning of the circuit board on the straight path. When the connector 23 is at the bottom of the second groove 221, the drive member 24 drives the gear 21 and the connecting shaft 22 to rotate. Since the connector 23 is locked in the first groove 126, the rotation of the gear 21 and the connecting shaft 22 is converted into the rotational motion of the carrier assembly 1 around the axis of the connecting shaft 22, so that the carrier assembly 1 can drive the circuit board to rotate at any angle, meet the multi-directional assembly requirements, thereby simplifying the production process and improving production efficiency.

[0095] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in related technologies that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0096] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component 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 application.

[0097] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0098] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0099] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0100] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A transmission device for a circuit board, characterized in that, include: A vehicle assembly includes a vehicle and a transmission structure disposed at the bottom of the vehicle; the transmission structure includes a first groove, a first through slot parallel to the extending direction of the transmission structure, and a rack assembly, the rack assembly being disposed on the inner sidewall of the transmission structure, and the first through slot intersecting the first groove; A drive assembly includes a gear, a connecting shaft, a connector, and a drive component; the drive component is rotatably connected to one end of the connecting shaft, the gear is connected to the other end of the connecting shaft, the gear is located in the first through groove and meshes with the rack assembly; the connecting shaft is provided with a second groove extending axially, the connector is movably disposed in the second groove, and is configured such that when at least a portion of the connector is engaged in the channel enclosed by the bottom of the first groove and the second groove, the drive assembly drives the vehicle assembly to rotate at any angle.

2. The transmission device for the circuit board according to claim 1, characterized in that, The drive component is rotatably connected to one end of the connecting shaft in a detachable manner.

3. The circuit board transmission device according to claim 1, characterized in that, The transmission structure includes: The first side plate and the second side plate both extend downward from the bottom surface of the vehicle, both are parallel to the extension direction of the vehicle, are opposite to each other and are spaced apart; the rack assembly is provided at least one of the first side plate and the second side plate.

4. The circuit board transmission device according to claim 3, characterized in that, The transmission structure also includes: The first base plate extends inward from the bottom edge of the first side plate; The second base plate extends inward from the bottom edge of the second side plate; the second through groove of the transmission structure is formed between the first base plate and the second base plate, and the connecting shaft passes through the second through groove; At least one of the first base plate and the second base plate is provided with the first groove having an opening facing the second through groove.

5. The circuit board transmission device according to claim 3, characterized in that, The first side plate has a protrusion on its inner side; the rack assembly is disposed on the side of the protrusion parallel to the first side plate.

6. The transmission device for the circuit board according to claim 1, characterized in that, The drive assembly further includes a guide; the guide has a third groove with an opening facing the rack assembly, the gear is located in the third groove, and the gear meshes with a portion of the rack assembly located in the third groove.

7. The circuit board transmission device according to claim 6, characterized in that, The guide is located within the first through slot, and the transmission structure is configured to slide relative to the guide.

8. The transmission device for the circuit board according to claim 1, characterized in that, Along the radial direction of the gear, the inner side of the gear is provided with a fourth groove with an opening facing the connecting shaft. The position of the fourth groove corresponds to the second groove. It is configured such that when at least a portion of the connector is engaged in the channel enclosed by the top of the fourth groove and the second groove, the drive assembly drives the vehicle assembly to move horizontally.

9. The circuit board transmission device according to claim 8, characterized in that, Along the axial direction of the connecting shaft, the axial dimension of the connecting member is smaller than the axial dimension of the gear.

10. The transmission device for the circuit board according to claim 1, characterized in that, The drive assembly further includes a magnetic attraction device; the magnetic attraction device is disposed between the connecting shaft and the drive component.

11. The transmission device for the circuit board according to claim 10, characterized in that, The magnetic attraction device includes: The first magnetic suction element is fixed to the output end of the driving element; The second magnetic attractor is fixed to one end of the connecting shaft located outside the transmission structure, and is configured such that the first magnetic attractor and the second magnetic attractor are magnetically attracted, so that the driving member is connected to the connecting shaft.

12. The transmission device for the circuit board according to claim 1, characterized in that, The drive assembly also includes a mounting base; the end of the drive member away from the connecting shaft is detachably connected to the mounting base.

13. The transmission device for the circuit board according to claim 1, characterized in that, The vehicle includes a third magnetic attraction element; The third magnetic attraction element is provided at each of the four corners of the vehicle, and any two adjacent vehicles are connected by the third magnetic attraction element at their respective corners.

14. A method for positioning and splicing a transmission device for a circuit board, characterized in that, For the transmission device according to any one of claims 1-13, comprising: A transmission device carrying a circuit board moves within a production line's transport system. The transmission device includes a carrier assembly and a drive assembly. The carrier assembly includes a carrier and a transmission structure disposed at the bottom of the carrier. The transmission structure includes a first groove, a first through-slot parallel to the extension direction of the transmission structure, and a rack assembly. The rack assembly is disposed on the inner wall of the transmission structure, and the first through-slot intersects with the first groove. The drive assembly includes a gear, a connecting shaft, a connector, and a drive member. The drive member is detachably rotatably connected to one end of the connecting shaft, and the gear is connected to the other end of the connecting shaft. The gear is located within the first through-slot and meshes with the rack assembly. The connecting shaft has a second groove extending axially. Upon reaching the preset workstation, the drive component is temporarily fixed to the preset workstation in a detachable manner; At least a portion of the connector is moved to the channel enclosed by the bottom of the second groove and the first groove, and the drive unit drives the gear to rotate the vehicle assembly at any angle.

15. The positioning and splicing method for the transmission device of the circuit board according to claim 14, characterized in that, Upon reaching the preset workstation, the drive component is temporarily and detachably fixed to the preset workstation, including: At least a portion of the connector is moved into the channel enclosed by the top of the second groove and the fourth groove inside the gear, and the drive unit drives the gear to move the vehicle assembly horizontally.

16. The positioning and splicing method for the transmission device of the circuit board according to claim 14, characterized in that, The preset workstation includes the circuit board loading position of the production equipment or testing equipment.

17. A method for positioning and splicing a transmission device for a circuit board, characterized in that, For the transmission device according to any one of claims 2-13, comprising: The carrier assembly carrying the circuit board, as well as the gears, connecting shafts, and connectors of the drive assembly, all move within the production line's transport system. The carrier assembly includes a carrier and a transmission structure disposed at the bottom of the carrier. The transmission structure includes a first groove, a first through slot parallel to the extending direction of the transmission structure, and a rack assembly. The first through slot intersects with the first groove. The gear is connected to the top of the connecting shaft, is located within the first through slot, and meshes with the rack assembly. The connecting shaft has a second groove extending axially. When the shaft reaches the preset station of the production line, the bottom end of the connecting shaft is temporarily rotatably connected to the drive component of the drive assembly preset at the preset station in a detachable manner. At least a portion of the connector is moved to the channel enclosed by the bottom of the second groove and the first groove, and the drive unit drives the gear to rotate the vehicle assembly at any angle.

18. A method for positioning and splicing a transmission device for a circuit board, characterized in that, For the transmission device according to any one of claims 1-13, comprising: The carrier assembly carrying the circuit board moves in the transport system of the production line; the carrier assembly includes a carrier and a transmission structure disposed at the bottom of the carrier; the transmission structure includes a first groove and a first through slot and a rack assembly that are both parallel to the extension direction of the transmission structure, the rack assembly is disposed on the inner side wall of the transmission structure, and the first through slot intersects with the first groove; The drive assembly is detachably fixed to a preset work station; the drive assembly includes a gear, a connecting shaft, a connector, and a drive component; the drive component is detachably rotatably connected to one end of the connecting shaft, and the gear is connected to the other end of the connecting shaft; the connecting shaft is provided with a second groove extending axially; When the gear reaches the preset work station, it enters the first through slot and meshes with the rack assembly; At least a portion of the connector is moved to the channel enclosed by the bottom of the second groove and the first groove, and the drive unit drives the gear to rotate the vehicle assembly at any angle.

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