Crown block device

Abstract

The utility model provides a crown block device. The crown block device comprises a bearing seat; the driving mechanism comprises a first driving assembly, a second driving assembly and a third driving assembly, the first driving assembly is arranged on the bearing seat and is in driving connection with the second driving assembly, the second driving assembly is in driving connection with the third driving assembly, the first driving assembly moves in the first direction, and the second driving assembly moves in the second direction; the third driving assembly moves in the third direction; and the grabbing mechanism comprises a mechanical arm and a moving and taking assembly, the mechanical arm is in driving connection with the third driving assembly, and the moving and taking assembly is in driving connection with the mechanical arm so as to rotate under driving of the mechanical arm. According to the crown block device, through cooperative actuation of the three-axis linkage bearing driving mechanism and the rotatable grabbing mechanism, the six-degree-of-freedom clamping capacity of translation and rotation can be formed, the clamping precision of the moving and taking assembly is improved, precise positioning of the moving and taking assembly and automatic workpiece moving and taking are achieved, and therefore efficient and precise workpiece clamping operation is achieved.

Description

Technical Field

[0001] This application relates to the field of workpiece handling technology, specifically to an overhead crane device. Background Technology

[0002] Most existing overhead crane mechanisms employ wire-driven hook structures, primarily used for lifting or moving large items, with a focus on load-bearing capacity and stability. However, for lightweight, thin, and small products (such as components for mobile phones and computer casings), existing mechanisms have significant shortcomings in clamping capabilities. Because these products are small, lightweight, and require high clamping precision, traditional overhead crane mechanisms struggle to meet their clamping needs, leading to a reliance on manual operation. This is not only inefficient but also prone to precision issues, ultimately impacting production quality and efficiency. Utility Model Content

[0003] In view of the above, it is necessary to propose an overhead crane device with precise positioning and automation functions to achieve efficient and accurate clamping operations.

[0004] This application provides an overhead crane device, including: a support base; a drive mechanism including a first drive component, a second drive component, and a third drive component, wherein the first drive component is disposed on the support base and drivenly connected to the second drive component, the second drive component is drivenly connected to the third drive component, the first drive component moves along a first direction, the second drive component moves along a second direction perpendicular to the first direction, and the third drive component moves along a third direction perpendicular to both the first and second directions; and a gripping mechanism including a robotic arm and a transfer component, wherein the robotic arm is drivenly connected to the third drive component, and the transfer component is drivenly connected to the robotic arm to rotate under the drive of the robotic arm, thereby transferring a processed workpiece from a processing machine table or placing an unprocessed workpiece on the processing machine table.

[0005] In some embodiments, the support includes two support frames disposed opposite to each other, each support frame including a first guide rail extending along the first direction, and the first drive assembly being slidably disposed on the first guide rail.

[0006] In some embodiments, each of the two first guide rails is provided with a first rack extending along the first direction, and the first drive assembly includes: a first movable frame disposed on one side of the two first guide rails, wherein the second drive assembly is disposed on the first movable frame; two first gears rotatably disposed on the first movable frame at intervals and respectively meshing with the two first racks; and two first drive members disposed on the first movable frame, wherein the two first gears are respectively drivenly connected to the two first gears for driving the two first gears to rotate, so as to move the first movable frame along the first direction under the action of the first racks.

[0007] In some embodiments, the first drive assembly further includes: two sets of first rollers, spaced apart on the first movable frame, wherein the two sets of first rollers are slidably disposed on two first guide rails and respectively engaged with the two first guide rails.

[0008] In some embodiments, the first movable frame is provided with a second rack extending along the second direction, and the second driving component includes: a second movable frame slidably connected to the first movable frame, wherein the third driving component is disposed on the second movable frame; a second gear rotatably disposed on the second movable frame and meshing with the second rack; and a second driving member disposed on the second movable frame and drivenly connected to the second gear for driving the second gear to rotate, so that the second movable frame moves along the second direction under the action of the second rack.

[0009] In some embodiments, the second drive assembly further includes: two sets of second rollers, spaced apart on the second movable frame, wherein the two sets of second rollers are slidably disposed on the first movable frame and respectively engaged with the first movable frame.

[0010] In some embodiments, the transfer assembly includes: a fixed base, which is drivenly connected to the robotic arm; and a plurality of suction members, spaced apart on one side of the fixed base, for transferring the processed workpiece on the processing table or placing an unprocessed workpiece on the processing table.

[0011] In some embodiments, the transfer assembly further includes: a clamping drive member disposed on the side of the fixed base away from the suction member; two grippers disposed on the side of the fixed base away from the suction member and respectively drivenly connected to the clamping drive member, the clamping drive member being used to drive the two grippers to move closer to each other to grip the tray, and the robotic arm being used to drive the fixed base to move the suction member so that the suction member can remove the processed workpiece from the processing table and place the processed workpiece on the empty tray or place the unprocessed workpiece in the tray on the processing table for processing.

[0012] In some embodiments, the gripping mechanism includes a transport assembly, comprising a transport frame, a transport drive, and two oppositely arranged transport members. The transport frame is disposed on one side of the third drive assembly, and the transport drive is disposed on the transport frame and connected to the two transport members respectively, for driving the two transport members to move closer to each other to clamp the stacked pallets, thereby transporting the multiple pallets.

[0013] In some embodiments, the conveying assembly further includes: a third gear rotatably disposed on one side of the third drive assembly and connected to the conveying frame; a fourth gear rotatably disposed on one side of the third drive assembly and meshing with the third gear; and a rotary drive member disposed on one side of the third drive assembly and drivenly connected to the fourth gear, for driving the fourth gear to rotate, so that the third gear drives the conveying frame to rotate by a preset angle under the action of the fourth gear, thereby enabling the suction member or the conveying member to operate.

[0014] The aforementioned overhead crane device, through the coordinated operation of a three-axis linkage load-bearing drive mechanism (the first drive component along the first direction, the second drive component along the second direction, and the third drive component along the third direction) and a rotatable gripping mechanism, can form a six-degree-of-freedom clamping capability of "translation + rotation". This improves the clamping accuracy of the transfer component, realizes the precise positioning of the transfer component and the automated transfer of workpieces, thereby achieving efficient and precise workpiece clamping operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of the overhead crane device and processing machine provided in the embodiments of this application.

[0016] Figure 2 yes Figure 1 The diagram shows a three-dimensional structure of the pallet and workpiece adapted to the overhead crane device.

[0017] Figure 3 yes Figure 1 The diagram shows a three-dimensional structural schematic of the overhead crane device.

[0018] Figure 4 yes Figure 3 The enlarged view of the drive mechanism at point IV is shown.

[0019] Figure 5 yes Figure 3 A three-dimensional structural diagram of the second drive component of the drive mechanism shown.

[0020] Figure 6 yes Figure 1 The diagram shows a three-dimensional structure of the gripping mechanism.

[0021] Figure 7 yes Figure 6 The diagram shows a three-dimensional view of the gripping mechanism from another angle.

[0022] Explanation of main component symbols: Overhead crane device 100, bearing seat 10, bearing frame 11, first guide rail 111, first rack 1111, drive mechanism 20, first drive assembly 21, first moving frame 211, second rack 2111, first gear 212, first drive component 213, first rolling wheel group 214, second drive assembly 22, second moving frame 221, second gear 222, second drive component 223, second rolling wheel group 224, third drive assembly 23, gripping mechanism 30, robotic arm 31, transfer assembly 32, fixed seat 321, suction component 322, clamping drive component 323, gripping component 324, handling assembly 33, handling frame 331, handling drive component 332, handling component 333, third gear 334, fourth gear 335, rotation drive component 336, mounting platform 337, processing machine table 200, workpiece 300, pallet 400. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of the 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 application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, 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. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, it should be noted that "multiple" means two or more, unless otherwise explicitly specified.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0027] Please also see Figure 1 and Figure 2 This application provides an overhead crane device 100 for removing a processed workpiece 300 from a processing machine 200 or placing an unprocessed workpiece 300 on the processing machine 200. In this embodiment, the processing machine 200 is a CNC machine, and the workpiece 300 is a laptop shell. Specifically, the overhead crane device 100 includes a support base 10, a drive mechanism 20, and a gripping mechanism 30.

[0028] The driving mechanism 20 includes a first driving component 21, a second driving component 22, and a third driving component 23. The first driving component 21 is disposed on the support base 10 and drivenly connected to the second driving component 22. The second driving component 22 is drivenly connected to the third driving component 23. The first driving component 21 moves along a first direction, the second driving component 22 moves along a second direction perpendicular to the first direction, and the third driving component 23 moves along a third direction perpendicular to both the first and second directions. In this embodiment, the first direction is the Y-axis, the second direction is the X-axis, and the third direction is the Z-axis. The gripping mechanism 30 includes a robotic arm 31 and a transfer component 32. The robotic arm 31 is drivenly connected to the third driving component 23, and the transfer component 32 is drivenly connected to the robotic arm 31 to rotate under the drive of the robotic arm 31, thereby transferring the processed workpiece 300 from the processing table 200 or placing the unprocessed workpiece 300 on the processing table 200. In this embodiment, the robotic arm 31 is a six-axis robotic arm 31.

[0029] The aforementioned overhead crane device 100, through the coordinated operation of the three-axis linkage load-bearing drive mechanism 20 (the first drive component 21 along the first direction, the second drive component 22 along the second direction, and the third drive component 23 along the third direction) and the rotatable gripping mechanism 30, can form a six-degree-of-freedom clamping capability of "translation + rotation", which improves the clamping accuracy of the transfer component 32, realizes the precise positioning of the transfer component 32 and the automated transfer of the workpiece 300, thereby achieving efficient and accurate clamping operation of the workpiece 300.

[0030] Please see also Figure 3In some embodiments, the support base 10 includes two support frames 11, which are generally U-shaped and arranged opposite to each other. Each support frame 11 includes a first guide rail 111 extending along a first direction, and the first drive assembly 21 is slidably connected to the first guide rail 111. By setting two oppositely arranged support frames 11 and their first guide rails 111 extending along the first direction, a symmetrical support system is firstly formed in terms of structure, which improves the motion stability of the first drive assembly 21; secondly, the parallel guiding constraint of the double guide rails effectively suppresses the deflection torque when subjected to force on one side, ensuring the straightness of the first drive assembly 21 in the first direction.

[0031] Please see also Figure 4 In some embodiments, each of the two first guide rails 111 is provided with a first rack 1111 extending along a first direction. The first drive assembly 21 includes a first moving frame 211, two first gears 212, and two first drive members 213. The first moving frame 211 is disposed on one side of the two first guide rails 111, wherein the second drive assembly 22 is disposed on the first moving frame 211. The two first gears 212 are rotatably disposed on the first moving frame 211 at intervals and respectively mesh with the two first racks 1111. The two first drive members 213 are disposed on the first moving frame 211 and are respectively drivenly connected to the two first gears 212 to drive the two first gears 212 to rotate, so that the first moving frame 211 moves along the first direction under the action of the first racks 1111. In this embodiment, the first drive member 213 is a servo motor. By setting a first rack 1111 on the first guide rail 111 and configuring a symmetrical drive structure of double gears and double drive components on the first moving frame 211, precise synchronous drive in the first direction is firstly achieved, improving the smoothness of the movement of the first moving frame 211; secondly, through the meshing transmission of double gears and double racks, the single-point driving force is distributed into two-point symmetrical drive, effectively reducing the local wear rate of the guide rail and improving the load capacity of the system.

[0032] In some embodiments, the first drive assembly 21 further includes two sets of first rolling wheel sets 214, which are spaced apart on the first movable frame 211. The two sets of first rolling wheel sets 214 are slidably disposed on two first guide rails 111 and respectively engaged with the two first guide rails 111. By setting two sets of first rolling wheel sets 214 engaged with the first guide rails 111 on the first movable frame 211, a dual stabilization mechanism of "gear drive + rolling wheel guidance" is firstly formed in terms of motion constraints, improving the linearity of the movement of the first movable frame 211; secondly, the precise cooperation between the rolling wheel sets and the guide rails effectively reduces the frictional resistance of the movement.

[0033] Please see also Figure 5In some embodiments, the first movable frame 211 is provided with a second rack 2111 extending along a second direction, and the second drive assembly 22 includes a second movable frame 221, a second gear 222, and a second drive member 223. The second movable frame 221 is slidably connected to the first movable frame 211, wherein the third drive assembly 23 is disposed on the second movable frame 221; the second gear 222 is rotatably disposed on the second movable frame 221 and meshes with the second rack 2111; the second drive member 223 is disposed on the second movable frame 221 and is drivenly connected to the second gear 222, for driving the second gear 222 to rotate, so that the second movable frame 221 moves along the second direction under the action of the second rack 2111. In this embodiment, the second drive member 223 is a servo motor, and the third drive assembly 23 is a lead screw and nut drive structure. By setting a second rack 2111 on the first moving frame 211 and configuring a gear-drive direct drive structure on the second moving frame 221, a compact transmission layout in the second direction is first achieved, improving the motion response speed of the second drive assembly 22; secondly, the sliding connection between the second moving frame 221 and the first moving frame 211 forms a stable planar guide structure, effectively suppressing swaying during the motion process.

[0034] In some embodiments, the second drive assembly 22 further includes two sets of second rolling wheel sets 224, which are spaced apart on the second movable frame 221 and slidably disposed on the first movable frame 211 and respectively engaged with the first movable frame 211. By setting two sets of second rolling wheel sets 224 engaged with the first movable frame 211 on the second movable frame 221, a dual stabilization mechanism of "gear drive + rolling wheel guidance" is firstly formed in terms of motion constraints, improving the linearity of the movement of the second movable frame 221; secondly, the precise cooperation between the rolling wheel sets and the first movable frame 211 effectively reduces the frictional resistance of the movement.

[0035] Please see also Figure 6 and Figure 7 In some embodiments, the transfer assembly 32 includes a fixed base 321 and a plurality of suction elements 322. The fixed base 321 is drivenly connected to the robotic arm 31. The plurality of suction elements 322 are spaced apart on one side of the fixed base 321 and are used to transfer the processed workpiece 300 on the processing table 200 or to place the unprocessed workpiece 300 on the processing table 200. In this embodiment, the suction elements 322 are suction nozzles and there are four of them. By designing the transfer assembly 32, which includes a fixed base 321 and a plurality of spaced suction elements 322, efficient and precise clamping of light, thin and small workpieces 300 is achieved. The layout of the plurality of independent suction elements 322 can simultaneously adapt to workpieces 300 of different sizes or shapes, and the vacuum adsorption method can avoid surface damage caused by mechanical clamping.

[0036] In some embodiments, the transfer assembly 32 further includes a clamping drive 323 and two gripping members 324. The clamping drive 323 is located on the side of the fixed base 321 opposite to the suction member 322. The two gripping members 324 are located on the side of the fixed base 321 opposite to the suction member 322 and are respectively drivenly connected to the clamping drive 323. The clamping drive 323 is used to drive the two gripping members 324 to move closer to each other to grip the tray 400. The robotic arm 31 is used to drive the fixed base 321 to move the suction member 322, so that the suction member 322 can transfer the processed workpiece 300 from the processing table 200 and place the processed workpiece 300 on the empty tray 400 or place the unprocessed workpiece 300 in the tray 400 on the processing table 200 for processing. In this embodiment, the clamping drive 323 is a cylinder. By adding a composite structure of the clamping drive 323 and the gripping members 324, stable gripping and placing of the tray 400 can be achieved.

[0037] In some embodiments, the gripping mechanism 30 includes a transport component 33, which includes a transport frame 331, a transport drive 332, and two opposing transport members 333. The transport frame 331 is located on one side of the third drive component 23, and the transport drive 332 is located on the transport frame 331 and connected to the two transport members 333 respectively. The drive 332 drives the two transport members 333 to move closer together to clamp multiple stacked pallets 400, thereby transporting the multiple pallets 400. In this embodiment, the transport drive 332 is a cylinder. By introducing the transport component 33, the transport drive 332 precisely controls the synchronous opening and closing of the two transport members 333, achieving stable clamping and overall transport of the stacked pallets 400, which can significantly improve the pallet 400 transfer efficiency.

[0038] In some embodiments, the conveying assembly 33 further includes a third gear 334, a fourth gear 335, and a rotary drive 336. The third gear 334 is rotatably disposed on one side of the third drive assembly 23 and connected to the conveying frame 331; the fourth gear 335 is rotatably disposed on one side of the third drive assembly 23 and meshes with the third gear 334; the rotary drive 336 is disposed on one side of the third drive assembly 23 and is drivenly connected to the fourth gear 335, used to drive the fourth gear 335 to rotate, so that the third gear 334 drives the conveying frame 331 to rotate by a preset angle under the action of the fourth gear 335, thereby enabling the suction member 322 or the conveying member 333 to operate. In this embodiment, the rotary drive 336 is a motor, the diameter of the fourth gear 335 is larger than the diameter of the third gear 334, and the preset angle is 180 degrees, but is not limited to this. By introducing gear transmission and rotary drive mechanism 20, the conveying frame 331 can be rotated when the suction member 322 or the conveying member 333 is operating, in order to avoid obstruction and ensure the normal operation of the suction member 322 or the conveying member 333.

[0039] In some embodiments, the handling assembly 33 further includes a mounting platform 337, which is drivenly connected to the third drive assembly 23. The robotic arm 31, the third gear 334, the fourth gear 335, and the rotary drive component 336 are all connected to the mounting platform 337.

[0040] The implementation process of the overhead crane device 100 in this application embodiment is as follows:

[0041] After the machining center 200 finishes processing the workpiece 300, the rotary drive 336 drives the fourth gear 335 to rotate, causing the third gear 334 to rotate 180 degrees under the action of the fourth gear 335, thus creating space for the suction unit 322 or the transport unit 333 to operate normally. Subsequently, the first drive assembly 21, the second drive assembly 22, and the third drive assembly 23, in conjunction with the robotic arm 31, drive the suction unit 322 and the clamping drive 323. First, the suction unit 322 moves into the machining center 200 to pick up the processed workpiece 300, and then places the processed workpiece 300 on an empty tray on one side of the machining center 200. The unprocessed workpiece 300 is placed on the processing table 200 and then the suction member 322 picks up the unprocessed workpiece 300 from the tray 400 and places it on the processing table 200 for processing. Then, the clamping drive member 323 drives the two gripping members 324 to move closer to each other to grip the empty tray 400 and stack the empty tray 400 on the tray 400 containing the processed workpiece 300. This process is repeated until a preset number of trays 400 containing the processed workpiece 300 are stacked. Then, the transport drive member 332 drives the two transport members 333 to move closer to each other to clamp the stacked trays 400, thereby transporting the multiple trays 400 to the required position.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A crane device, characterized in that, include: Support; The driving mechanism includes a first driving component, a second driving component, and a third driving component. The first driving component is disposed on the support and drivenly connected to the second driving component. The second driving component is drivenly connected to the third driving component. The first driving component moves along a first direction. The second driving component moves along a second direction perpendicular to the first direction. The third driving component moves along a third direction perpendicular to both the first and second directions. and The gripping mechanism includes a robotic arm and a transfer assembly. The robotic arm is drivenly connected to the third drive assembly, and the transfer assembly is drivenly connected to the robotic arm to rotate under the drive of the robotic arm, thereby transferring a processed workpiece from the processing table or placing an unprocessed workpiece on the processing table.

2. The overhead crane device as described in claim 1, characterized in that, The support includes two support frames arranged opposite to each other. Each support frame includes a first guide rail extending along the first direction, and the first drive component is slidably disposed on the first guide rail.

3. The overhead crane device as described in claim 2, characterized in that, Each of the two first guide rails is provided with a first rack extending along the first direction, and the first drive assembly includes: A first movable frame is disposed on one side of the two first guide rails, wherein the second drive assembly is disposed on the first movable frame; Two first gears are rotatably mounted on the first movable frame at intervals, and the two first gears respectively mesh with the two first racks; Two first driving members are disposed on the first movable frame and are respectively drivenly connected to the two first gears to drive the two first gears to rotate, so that the first movable frame moves along the first direction under the action of the first rack.

4. The overhead crane device as described in claim 3, characterized in that, The first driving component also includes: Two sets of first rolling wheels are spaced apart on the first movable frame. The two sets of first rolling wheels are slidably disposed on the two first guide rails and respectively engaged with the two first guide rails.

5. The overhead crane device as described in claim 3 or 4, characterized in that, The first movable frame is provided with a second rack extending along the second direction, and the second drive assembly includes: The second movable frame is slidably connected to the first movable frame, wherein the third drive component is disposed on the second movable frame; The second gear is rotatably mounted on the second movable frame and meshes with the second rack; The second driving member is disposed on the second movable frame and is drivenly connected to the second gear, and is used to drive the second gear to rotate so that the second movable frame moves along the second direction under the action of the second rack.

6. The overhead crane device as described in claim 5, characterized in that, The second driving component also includes: Two sets of second rolling wheels are spaced apart on the second movable frame, and the two sets of second rolling wheels are respectively slidably disposed on the first movable frame and respectively engaged with the first movable frame.

7. The overhead crane device as described in claim 1, characterized in that, The transfer component includes: The fixed base is connected to the drive of the robotic arm; Multiple suction components are spaced apart on one side of the fixed base for removing the processed workpiece from the processing table or placing an unprocessed workpiece on the processing table.

8. The overhead crane device as described in claim 7, characterized in that, The transfer component further includes: A clamping drive is located on the side of the fixed base opposite to the suction member; Two grippers are located on the side of the fixed base away from the suction member and are respectively driven to the clamping drive member. The clamping drive member is used to drive the two grippers to move closer to each other to grip the tray. The robotic arm is used to drive the fixed base to move the suction member so that the suction member can remove the processed workpiece from the processing table and place the processed workpiece on the empty tray or place the unprocessed workpiece in the tray on the processing table for processing.

9. The overhead crane device as described in claim 8, characterized in that, The grasping mechanism includes: The transport assembly includes a transport frame, a transport drive, and two oppositely arranged transport components. The transport frame is located on one side of the third drive assembly. The transport drive is located on the transport frame and connected to the two transport components respectively, and is used to drive the two transport components to move closer to each other to clamp the stacked pallets, thereby transporting the multiple pallets.

10. The overhead crane device as described in claim 9, characterized in that, The transport component also includes: The third gear is rotatably disposed on one side of the third drive assembly and is connected to the transport frame; The fourth gear is rotatably disposed on one side of the third drive assembly and meshes with the third gear; A rotary drive component is located on one side of the third drive assembly and is connected to the fourth gear drive. It is used to drive the fourth gear to rotate, so that the third gear drives the transport frame to rotate by a preset angle under the action of the fourth gear, thereby enabling the suction component or the transport component to operate.

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