An assembly tool and system

Abstract

The utility model provides a kind of assembly tool and assembly system;Assembly tool has first position and second position on preset plane, and include pedestal, send nail mechanism and hit screw mechanism;Send nail mechanism includes send nail pipe, first driving part and conveying piece;Send nail pipe is connected with pedestal, and the export end of send nail pipe is towards first position;First driving part is arranged on pedestal;In the preset direction perpendicular to preset plane, conveying piece is located at the export end of send nail pipe towards one side of preset plane, and forming accommodating cavity on conveying piece, and the end of accommodating cavity towards the export end of send nail pipe is open end;Conveying piece is connected with first driving part, and rotates under the drive of first driving part, so that the open end of accommodating cavity switches between first position and second position;Hit screw mechanism is connected with pedestal, and is set corresponding to second position.Assembly tool is used to execute automatic hit screw operation, and can complete material preparation during hit screw process, improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of parts assembly technology, specifically relating to an assembly tooling and system. Background Technology

[0002] Automated screw driving is a common process in automated assembly lines. Currently, most automated screw driving processes use standard screw guns from established manufacturers for screw assembly. This process operates sequentially with the screw feeding system, and the inability to prepare materials in advance results in a longer screw assembly cycle time. Utility Model Content

[0003] The purpose of this invention is to provide an assembly tooling and system that prepares materials during the automatic screw-driving process, thereby shortening the screw assembly cycle.

[0004] To achieve the above objectives, this utility model provides an assembly fixture, which has a first position and a second position located on a preset plane, and includes:

[0005] Base;

[0006] A staple feeding mechanism includes a staple feeding tube, a first driving unit, and a conveying member; the staple feeding tube is connected to the base, and the outlet end of the staple feeding tube is arranged facing the first position; the first driving unit is disposed on the base; in a preset direction perpendicular to the preset plane, the conveying member is located on the side of the outlet end of the staple feeding tube close to the preset plane, and a receiving cavity is formed on the conveying member, the end of the receiving cavity facing the outlet end of the staple feeding tube being an open end; the conveying member is also connected to the first driving unit and can rotate under the drive of the first driving unit, so that the open end of the receiving cavity can switch between the first position and the second position; and,

[0007] A screw-driving mechanism is connected to the base and is positioned corresponding to the second position.

[0008] Optionally, the conveying component includes a base plate and a receiving tube; the base plate is connected to the first driving part; the receiving tube is connected to the base plate and extends along the preset direction, the lumen of the receiving tube constitutes the receiving cavity, one end of the receiving tube away from the outlet end of the feeding tube is a closed end, and one end of the receiving tube facing the outlet end of the feeding tube is open to form the opening end of the receiving cavity.

[0009] Optionally, the receiving tube includes a tube body, an elastic element, and a sealing ring; the tube body is connected to the base plate and extends along the preset direction; the end of the tube body away from the outlet end of the feeding tube is a closed end, and the end of the receiving tube facing the outlet end of the feeding tube is open; the sealing ring has an inner hole extending through it along its own axial direction, the sealing ring is sleeved on a portion of the outer circumferential surface of the tube body through the inner hole, and the end of the sealing ring away from the base plate protrudes from the end of the tube body facing the outlet end of the feeding tube, or is flush with the end of the tube body facing the outlet end of the feeding tube; the elastic element is disposed between the sealing ring and the base plate;

[0010] The cavity of the receiving tube includes at least the cavity of the tube body, and one end of the receiving tube facing the outlet end of the nail feeding tube is flush with the end of the sealing ring away from the base plate.

[0011] Optionally, the inner hole includes a first hole segment and a second hole segment arranged in a direction away from the base plate, wherein the diameter of the first hole segment is smaller than the diameter of the second hole segment; the receiving tube further includes a limiting part, which is disposed at the end of the tube body away from the base plate and extends radially outward along the tube body; the limiting part is located inside the second hole segment, and the outer diameter of the limiting part is larger than the diameter of the first hole segment and smaller than or equal to the diameter of the second hole segment.

[0012] Optionally, the screw-driving mechanism includes a first mounting plate, a screw gun assembly, a bit sleeve, and a second drive unit; the first mounting plate includes a first plate body and a second plate body connected to each other; the screw gun assembly includes a screw gun body and a bit; the screw gun body is disposed on the second plate body and has a rotating head, the rotating head being arranged towards the second position; the bit is connected to the rotating head and partially passes through the bit sleeve; the bit sleeve is connected to the first plate body; the second drive unit includes a first sub-drive unit and a second sub-drive unit, the first sub-drive unit is disposed on the base and connected to the first plate body, and is configured to drive the first plate body to move relative to the base along the preset direction, the second sub-drive unit is disposed on the first plate body and connected to the second plate body, and is configured to drive the second plate body to move relative to the first plate body along the preset direction.

[0013] Optionally, the bit is detachably connected to the rotating head, and the bit sleeve is detachably connected to the first plate.

[0014] Optionally, the screwdriver assembly further includes a locking sleeve; the locking sleeve is connected to the rotating head and is fitted onto the outer side of the end of the bit near the screwdriver body; the locking sleeve has a locked position and an unlocked position, when the locking sleeve is in the locked position, the screwdriver is connected to the bit; when the locking sleeve is in the unlocked position, the bit is allowed to disengage from the locking sleeve and be disconnected from the rotating head;

[0015] The screw-driving mechanism further includes a third drive unit, which is disposed on the second plate and connected to the locking sleeve, and is configured to drive the locking sleeve to switch between the locked position and the unlocked position.

[0016] Optionally, the locking sleeve includes an inner sleeve, a hub, an extruder, and an outer sleeve; the inner sleeve is connected to the rotating head; the hub is fitted onto the outer circumferential surface of the inner sleeve, and the hub has a plurality of mounting holes spaced apart along its own circumference, the mounting holes penetrating the hub radially through the inner sleeve; there are multiple extruders, each extruder partially disposed within one of the mounting holes, and capable of moving radially along the inner sleeve; the outer sleeve is fitted onto at least the outer circumferential surface of the hub and is configured to move axially relative to the hub, so that the locking sleeve switches between a locked position and an unlocked position; when the locking sleeve is in the locked position, the outer sleeve applies radial extrusion force to the inner sleeve through the extruder, and when the locking sleeve is in the unlocked position, the outer sleeve stops applying extrusion force to the inner sleeve;

[0017] The third drive unit is connected to the outer casing and is configured to drive the outer casing to move relative to the wheel hub in the preset direction.

[0018] Optionally, the screw-driving mechanism further includes a first quick-connect coupling, a second quick-connect coupling, and a second mounting plate; the first quick-connect coupling is connected to the first plate; the second quick-connect coupling is detachably connected to the first quick-connect coupling; and the second mounting plate is connected to the second quick-connect coupling.

[0019] The bit sleeve is connected to the second mounting plate.

[0020] Optionally, the base includes a first seat body and a second seat body connected at an angle;

[0021] The assembly fixture further includes a pressing mechanism, which includes a fourth driving unit, a pressure sensing element, and a pressing head. The fourth driving unit is floatingly connected to the first base body, so that the fourth driving unit can move relative to the base body along the preset direction. The fourth driving unit and the second base body are arranged in the preset direction along the direction from the opening end of the receiving cavity to the outlet end of the nail feeding tube. The pressure sensing element is disposed on the surface of the second base body facing the fourth driving unit. The pressing head is connected to the side of the fourth driving unit away from the second base body and can move along the preset direction under the drive of the fourth driving unit.

[0022] Optionally, the pressing mechanism further includes a third quick-connect coupling and a fourth quick-connect coupling; the third quick-connect coupling is at least partially made of ferromagnetic material and is connected to the output end of the fourth drive unit; the fourth quick-connect coupling is at least partially made of magnetic material and is magnetically connected to the third quick-connect coupling; the pressing head is connected to the fourth quick-connect coupling.

[0023] Optionally, the assembly fixture further includes a vision guidance mechanism, which includes an image acquisition element disposed on the base.

[0024] To achieve the above objectives, the present invention also provides an assembly system, including a robotic arm and an assembly fixture as described in any of the preceding claims, wherein the base of the assembly fixture is connected to the end of the robotic arm.

[0025] Compared with the prior art, the assembly tooling and system of this utility model have the following advantages:

[0026] The aforementioned assembly fixture has a first position and a second position located on a preset plane, and the assembly fixture includes a base, a nail feeding mechanism, and a screw driving mechanism; the nail feeding mechanism includes a nail feeding tube, a first driving part, and a conveying member; the nail feeding tube is connected to the base and has an outlet end, the outlet end of the nail feeding tube being arranged towards the first position; the first driving part is disposed on the base; in a preset direction perpendicular to the preset plane, the conveying member is located on the side of the nail feeding tube's outlet end facing the preset plane, and a receiving cavity is formed on the conveying member, the end of the receiving cavity facing the nail feeding tube's outlet end being an open end; the conveying member is also connected to the first driving part and can rotate under the drive of the first driving part, so that the open end of the receiving cavity can switch between the first position and the second position; the screw driving mechanism is connected to the base and is disposed corresponding to the second position. The assembly fixture is used to perform automatic screw driving operations. During operation, the open end of the receiving cavity of the conveyor first receives a screw from the screw feed tube at the first position. Then, the first drive unit drives the conveyor to rotate until the open end of the receiving cavity reaches the second position. Afterward, the screw driving mechanism retrieves the screw from the conveyor. Once the screw driving mechanism has retrieved the screw, the first drive unit can drive the conveyor to rotate until the open end of the receiving cavity reaches the first position and receives the screw from the screw feed tube. That is, while the screw driving mechanism is performing the screw driving operation, the conveyor has already received the next screw, completing the preparation for the next screw, thereby shortening the screw driving operation cycle and improving work efficiency. Attached Figure Description

[0027] The accompanying drawings are provided to better understand this utility model and do not constitute an undue limitation thereof. Wherein:

[0028] Figure 1 This is a schematic diagram of the assembly tooling provided by this utility model in one orientation according to an embodiment;

[0029] Figure 2 This is a schematic diagram of the assembly tooling provided according to one embodiment of the present invention in another orientation;

[0030] Figure 3 This is a structural schematic diagram of the assembly tooling provided according to one embodiment of the present invention in another orientation;

[0031] Figure 4 This is a schematic diagram of the assembly tooling provided according to an embodiment of the present invention in another orientation;

[0032] Figure 5This is a partial structural schematic diagram of an assembly tooling provided according to an embodiment of the present invention, mainly showing the first driving part and the transmission component;

[0033] Figure 6 This is a partial structural schematic diagram of the assembly tooling provided according to an embodiment of the present invention, mainly showing the receiving tube;

[0034] Figure 7 This is a partial structural schematic diagram of the assembly tooling provided according to an embodiment of the present invention, which mainly shows a part of the screw-driving mechanism.

[0035] Figure 8 This is a partial structural schematic diagram of the assembly tooling provided according to an embodiment of the present invention. The diagram mainly shows a part of the screw-driving mechanism. Figure 8 and Figure 7 The observation directions are different;

[0036] Figure 9 This is a partial structural schematic diagram of the assembly tooling provided according to an embodiment of the present invention. The figure mainly shows another part of the screw-driving mechanism.

[0037] Figure 10 This is a partial structural schematic diagram of the assembly tooling provided according to an embodiment of the present invention, mainly showing the pressing mechanism;

[0038] Figure 11 This is a partial sectional view of the assembly tooling provided according to an embodiment of the present invention, mainly showing the pressing mechanism;

[0039] Figure 12 This is a partial structural schematic diagram of the assembly tooling provided according to an embodiment of the present invention, mainly showing the visual guidance mechanism.

[0040] [The reference numerals in the attached drawings are explained as follows]: 100-Base, 110-First base body, 120-Second base body, 200-Nail feeding mechanism, 210-Nail feeding tube, 220-First drive unit, 230-Transmitter, 2301-Accommodation cavity, 231-Base plate, 232-Receiving tube, 2321-Tube body, 2322-Sealing ring, 23221-Inner hole, 2323-Elastic element, 2324-Limiting part, 300-Screw driving mechanism, 310-First mounting plate, 311-First plate body, 312-Second plate body, 320-Screw gun assembly, 321-Screw gun body, 322-Bit, 323-Lock Tightening sleeve, 330-bite cap, 340-second drive unit, 341-first sub-drive unit, 342-second sub-drive unit, 350-third drive unit, 360-first quick-change connector, 370-second quick-change connector, 380-second mounting plate, 400-pressing mechanism, 410-fourth drive unit, 420-pressure detection element, 430-pressure head, 440-third mounting plate, 450-third quick-change connector, 460-fourth quick-change connector, 461-housing, 462-magnet, 500-vision guidance mechanism, 510-image acquisition element, 520-light source, 530-mounting bracket, 1-screw. Detailed Implementation

[0041] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex.

[0042] Furthermore, while each embodiment described below possesses one or more technical features, this does not imply that users of this utility model must simultaneously implement all technical features in any embodiment, or can only separately implement some or all technical features in different embodiments. In other words, provided it is feasible, those skilled in the art can selectively implement some or all technical features in any embodiment, or selectively implement a combination of some or all technical features in multiple embodiments, based on the disclosure of this utility model and depending on design specifications or implementation requirements, thereby increasing the flexibility in implementing this utility model.

[0043] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “multiple” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “installed,” “connected,” and “linked” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be mechanical or electrical. Connections can be direct or indirect through an intermediate medium, and can be internal communication between two elements or an interaction between two elements. Relational terms such as “first,” “second,” etc., are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor do they indicate or imply relative importance or implicitly specify the number of indicated technical features. It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 utility model. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] The purpose of this utility model is to provide an assembly fixture that can be used to perform automatic screw driving operations, and can also prepare materials simultaneously during the screw driving process, thereby shortening the production cycle of the screw driving process and improving the execution efficiency of the screw driving process.

[0045] To make the objectives, advantages, and features of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to conveniently and clearly illustrate the objectives of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0046] Figures 1 to 4 The diagram shows the structural schematics of the assembly tooling from different orientations. For example... Figures 1 to 4 As shown, the assembly fixture includes a base 100, a screw feeding mechanism 200, and a screw driving mechanism 300. Part of the structure of the screw feeding mechanism 200 is shown below. Figure 5 As shown.

[0047] The assembly fixture has a first position and a second position, which are located on a preset plane. (Continue to refer to...) Figures 1 to 5 The staple feeding mechanism 200 includes a staple feeding tube 210, a first driving unit 220, and a conveying member 230. The staple feeding tube 210 is connected to the base 100 and has an outlet end, which is arranged facing the first position. The first driving unit 220 is disposed on the base 100. Viewed in a preset direction perpendicular to the preset plane, the conveying member 230 is located on the side of the staple feeding tube 210 facing the preset plane, and a receiving cavity 2301 is formed on the conveying member 230, with one end of the receiving cavity 2301 facing the outlet end of the staple feeding tube 210 being an open end. The conveying member 230 is connected to the first driving unit 220 and can rotate about an axis extending along the preset direction under the drive of the first driving unit 220, so that the open end of the receiving cavity 2301 can switch between the first position and the second position. The screw-driving mechanism 300 is connected to the base 100 and is arranged corresponding to the second position.

[0048] The assembly fixture is used to perform the automatic screw-driving process. The application of this assembly fixture can shorten the cycle time of the automatic screw-driving process and improve production efficiency.

[0049] Specifically, in the linear automatic screw-driving process using the assembly fixture, the open end of the receiving cavity 2301 is first positioned at the first position, receiving a screw 1 from the screw feed tube 210. Then, the first drive unit 220 drives the conveyor 230 to rotate, so that the open end of the receiving cavity 2301 reaches the second position. Subsequently, the screw-driving mechanism 300 can retrieve the screw 1 from the receiving cavity 2301. Afterward, the screw-driving mechanism 300 can perform the screw-driving operation, and the first drive unit 220 can drive the conveyor 230 to rotate back to the first position so that the open end of the receiving cavity 2301 receives the next screw 1 from the screw feed tube 210. That is, when the screw-driving mechanism 300 completes the assembly of the current screw, the conveyor 230 has already received the next screw 1, completing the preparation of the next screw 1, thereby shortening the production cycle of the screw-driving process and improving production efficiency.

[0050] Optionally, the preset plane is a horizontal plane, and correspondingly, the preset direction is a vertical direction. The outlet end of the nail feeding tube 210 is located directly above the first position, and preferably, the nail feeding tube 210 extends in a vertical direction. Thus, the conveying member 230 is disposed below the nail feeding tube 210, and the end of the accommodating cavity 2301 facing the outlet end of the nail feeding tube 210 is its upper end, that is, the upper end of the accommodating cavity 2301 is an open end.

[0051] For ease of description, the following text will directly use the preset direction as the vertical direction and the exit end of the nail feeding tube 210 located directly above the first position as an example. Those skilled in the art can modify the following description to apply to situations where the preset direction is not vertical and / or the exit end of the nail feeding tube 210 is not directly above the first position.

[0052] In optional embodiments, please refer to the following: Figure 5 The transmitting component 230 includes a base plate 231 and a receiving tube 232. The base plate 231 is connected to the first driving unit 220. The receiving tube 232 is connected to the base plate 231, with its lower end being closed and its upper end being open. Thus, the cavity of the receiving tube 232 forms the receiving cavity 2301, and the upper end of the receiving tube 232 forms the open end of the receiving cavity 2301.

[0053] The present invention does not specifically limit the first drive unit 220, which may be a rotary cylinder, a motor, or any other suitable drive component.

[0054] Preferably, the nail feeding mechanism 200 further includes a first limiting mechanism (not shown in the figure), which is configured to constrain the rotation angle of the conveying member 230.

[0055] In an optional embodiment, the first limiting mechanism includes a first limiting block and a second limiting block. The first limiting block is disposed corresponding to the first position, and the second limiting block is disposed corresponding to the second position. The first position and the second position together define the rotational stroke of the conveying member 230, that is, the conveying member 230 rotates between the first limiting block and the second limiting block. In this embodiment, when the conveying member 230 abuts against the first limiting block, it indicates that the upper end of the receiving tube 232 has reached the first position, and when the conveying member 230 abuts against the second limiting block, it indicates that the upper end of the receiving tube 232 has reached the second position. In an alternative embodiment, the first limiting mechanism further includes a third limiting block disposed on the output end of the first driving unit 220. When the third limiting block abuts against the first limiting block, it indicates that the upper end of the receiving tube 232 has reached the first position, and when the third limiting block abuts against the second limiting block, it indicates that the upper end of the receiving tube 232 has reached the second position.

[0056] It should be noted that when the upper end of the receiving tube 232 is in the first position, the screw 1 enters the receiving cavity 2301 from the screw feeding tube 210 under the action of negative pressure. That is, the receiving tube 232 is connected to a negative pressure generator, and a first valve is provided between the receiving tube 232 and the negative pressure generator. When the upper end of the receiving tube 232 is aligned with the outlet end of the screw feeding tube 210, the negative pressure generator is activated and the first valve is opened, so that a negative pressure is formed in the receiving tube 232 to draw the screw 1 into the receiving tube 232.

[0057] It is easy to understand that when screw 1 is sucked into the receiving tube 232, the pressure inside the receiving tube 232 is the first pressure. However, if no screw 1 enters the receiving tube 232 due to operational errors or other malfunctions, the pressure inside the receiving tube 232 is the second pressure, which is significantly different from the first pressure. Therefore, the presence or absence of screw 1 in the receiving tube 232 can be monitored by monitoring the pressure inside the receiving tube 232. Furthermore, creating a negative pressure inside the receiving tube 232 can also remove contaminants and keep the receiving tube 232 clean.

[0058] In addition, provided that the exit end of the nail feeding tube 210 does not affect the rotational movement of the conveying member 230, the distance from the exit end of the nail feeding tube 210 to the first position should be as small as possible.

[0059] Please continue to refer to this. Figures 1 to 4 and combined Figure 7 and Figure 8The screw-driving mechanism 300 includes a first mounting plate 310, a screw gun assembly 320, a bit sleeve 330, and a second drive unit 340. The first mounting plate 310 includes a first plate body 311 and a second plate body 312 connected to each other. The screw gun assembly 320 includes a screw gun body 321 and a bit 322. The screw gun body 321 is disposed on the first plate body 311 and has a rotating head located at the lower end of the screw gun body 321 and directly above the second position. The bit 322 extends vertically, and its upper end is connected to the rotating head. The bit 322 also partially passes through the bit sleeve 330. The bit sleeve 330 is connected to the first plate body 311. The second drive unit 340 includes a first sub-drive unit 341 and a second sub-drive unit 342. The first sub-drive unit 341 is disposed on the base 100 and connected to the first plate 311. The first sub-drive unit 341 is configured to drive the first plate 311 to move vertically relative to the base 100. The second sub-drive unit 342 is disposed on the first plate 311 and connected to the second plate 312. The second sub-drive unit 342 is configured to drive the second plate 312 to move vertically relative to the first plate 311.

[0060] The screw-driving mechanism 300 has an initial state. When the screw-driving mechanism 300 is in the initial state, it is positioned directly above the second position. The lower end of the screwdriver bit 322 is located inside the screwdriver bit sleeve 330, and there is a certain distance between the lower end of the screwdriver bit 322 and the lower end of the screwdriver bit sleeve 330. Furthermore, the screwdriver bit sleeve 330 is also connected to the negative pressure generator, and a second valve is provided between the screwdriver bit sleeve 330 and the negative pressure generator.

[0061] Based on the structure of the screw-driving mechanism 300, the process of the screw-driving mechanism 300 retrieving the screw from the receiving cavity 3101 and performing the screw-driving operation is as follows:

[0062] First, the first sub-drive unit 341 drives the first plate 311 to move a first preset distance in a vertically downward direction, so as to drive the second plate 312 and the screw gun assembly 320 to move downward until the lower end of the bit sleeve 330 is connected to the upper end of the receiving tube 232.

[0063] Next, the first valve is closed and the second valve is opened, creating a negative pressure inside the bit sleeve 330, which draws the screw 1 from the receiving tube 232 into the bit sleeve 330, and positions the screw 1 below the bit 322.

[0064] Next, the first sub-drive unit 341 drives the first plate 311 to move the first preset distance in the vertically upward direction, so as to drive the second plate 312 and the screw gun assembly 320 to move upward until the screw-driving mechanism 300 returns to the initial state.

[0065] If the screw-driving mechanism 300 is located directly above the screw assembly point of the target product, the second sub-drive unit 342 then drives the second mounting plate 312 to move vertically downwards, thereby moving the screw gun 321 and the bit 322 downwards. Simultaneously, the screw gun 321 operates, causing the rotating head to rotate the bit 322, which then engages with the screw, assembling the screw to the screw assembly point of the target product. If the screw-driving mechanism 300 is not directly above the screw assembly point of the target product, the assembly fixture is first moved in any suitable manner until the screw-driving mechanism 300 is located directly above the screw assembly point of the target product. Then, the second sub-drive unit 342 drives the second mounting plate 312 to move vertically downwards, while the screw gun 321 operates, causing the bit 322 to move downwards and rotate, thereby engaging the lower end of the bit 322 with the screw, assembling the screw to the screw assembly point of the target product.

[0066] Finally, the second sub-drive unit 342 drives the second plate 312 to move in a vertically upward direction until the screw-driving mechanism 300 returns to the initial state.

[0067] During the process where the first sub-drive unit 341 drives the first plate 311 to move vertically upward to the screw-driving mechanism 300 to assemble the screw into the screw mounting point of the target product, the first drive unit 220 drives the conveyor 230 to rotate so that the upper end of the receiving tube 232 returns to the first position and receives the next screw 1. During the process where the second sub-drive unit 342 drives the second plate 312 to move vertically upward, the first drive unit 220 also drives the conveyor 230 to rotate until the upper end of the receiving tube 232 reaches the second position.

[0068] Optionally, the base 100 includes a first seat body 110 and a second seat body 120 connected at an angle. The second seat body 120 is used to connect to the end of a robotic arm, enabling the robotic arm to move the assembly fixture. That is, after the screw-driving mechanism 300 picks up a screw and returns to the initial state, if the screw-driving mechanism 300 is not directly above the screw assembly position of the target product, the robotic arm can move the assembly fixture until the screw-driving mechanism 300 is directly above the screw assembly position.

[0069] Those skilled in the art will understand that any driving component includes a stator and a mover connected to each other. In this embodiment of the present invention, the first sub-driving part 341 is disposed on the base 100 and connected to the first plate 311, meaning that the stator of the first sub-driving part 341 is disposed on the base 100, more specifically on the first base 110, and the mover of the first sub-driving part is connected to the first plate 311. The second sub-driving part 342 is disposed on the first plate 311 and connected to the second plate 312, meaning that the stator of the second sub-driving part 342 is disposed on the first plate 311, and the mover of the second sub-driving part 342 is connected to the second plate 312. In practice, the first sub-driving part 341 can be an electric cylinder, more specifically a servo electric cylinder. Servo electric cylinders have high control precision, can better accommodate assembly errors of various components of the assembly fixture, and improve the reliability of screw-driving operations. The second sub-driving part 342 can be a telescopic cylinder.

[0070] In the above embodiment, the second sub-drive unit 342 is disposed outside the screwdriver body 321. In an alternative embodiment, the first mounting plate includes only the first plate body and not the second plate body, and the second sub-drive unit is built into the screwdriver body (not shown in the figure) to form a first assembly. Thus, after the screw-driving mechanism picks up a screw, the second sub-drive unit drives the screwdriver bit downwards without driving the screwdriver body downwards. Comparatively, the solution of disposing the second sub-drive unit 342 outside the screwdriver body 321 has better maintainability and can reduce the overall cost of the screw-driving mechanism 300. This is because if the second sub-drive unit built into the screwdriver body fails, disassembly and repair become difficult. If the second sub-drive unit or the screwdriver body experiences an irreparable failure, the entire first assembly needs to be replaced, rather than just replacing the damaged second sub-drive unit or the screwdriver body. Furthermore, embedding the second sub-drive unit inside the screwdriver body makes the structure of the first assembly more complex and costly.

[0071] Preferably, please refer to Figure 6 The receiving tube 232 includes a tube body 2321, a sealing ring 2322, and an elastic element 2323. The tube body 2321 is connected to the base plate 231 and extends vertically. The lower end of the tube body 2321 is closed, and the upper end is open. The sealing ring 2322 has an inner hole 23221 extending through it along its own axial direction. The sealing ring 2322 is fitted onto the outer circumferential surface of the upper end of the tube body 2321 through the inner hole 23221. The elastic element 2323 is disposed between the base plate 231 and the sealing ring 2322. The cavity of the receiving tube 232 includes at least the cavity of the tube body 2321, and the upper end of the receiving tube 232 is flush with the upper end of the sealing ring 2322.

[0072] In this embodiment of the invention, when the lower end of the bit sleeve 330 aligns with the open end of the receiving tube 232, the lower end of the bit sleeve 330 compresses the sealing ring 2322, causing the elastic element 2323 to store elastic potential energy. Thus, there is no gap between the bit sleeve 330 and the sealing ring 2322, resulting in a good seal between the receiving tube 232 and the bit sleeve 330, ensuring that the screw can be drawn into the bit sleeve 330 under negative pressure.

[0073] It is easy to understand that when the lower end of the bit sleeve 330 is not aligned with the upper end of the receiving tube 232, the upper end of the sealing ring 2322 can be higher than the upper end of the tube body 2321. When the lower end of the bit sleeve 330 is aligned with the upper end of the receiving tube 232, the upper end of the sealing ring 2322 can be higher than the upper end of the tube body 2321, or it can be flush with the upper end of the tube body 2321. When the upper end of the sealing ring 2322 is higher than the upper end of the tube body 2321, the cavity of the receiving tube 232 includes the cavity of the tube body 2321 and the portion of the inner hole 23221 of the sealing ring 2322 located at the upper end of the tube body 2321. When the upper end of the sealing ring 2322 is flush with the upper end of the tube body 2321, the cavity of the receiving tube 232 only includes the cavity of the tube body 2321.

[0074] Preferably, the inner hole 23221 includes a first hole segment and a second hole segment (not shown in the figure) arranged in a bottom-to-top direction, and the diameter of the first hole segment is smaller than the diameter of the second hole segment, so that the intersection of the first hole segment and the second hole segment forms a stepped surface. The receiving tube 232 also includes a limiting part 2324, which is disposed at the upper end of the tube body 2321 and extends radially outward along the tube body 2321. The limiting part 2324 is located inside the second hole segment, and the outer diameter of the limiting part 2324 is larger than the diameter of the first hole segment and smaller than or equal to the inner diameter of the second hole segment. Thus, the limiting part 2324 and the stepped surface together constitute a second limiting mechanism to prevent the sealing ring 2322 from disengaging from the tube body 2321.

[0075] Furthermore, the bit 322 is detachably connected to the rotating head. Also, the bit sleeve 330 is detachably connected to the first plate 311. Thus, the bit 322 and bit sleeve 330 can be replaced with appropriate sizes according to the screw specifications, improving the compatibility of the assembly tooling.

[0076] Please refer to Figures 1 to 4 and combined Figure 7 and Figure 8 The screwdriver assembly 320 further includes a locking sleeve 323. The locking sleeve 323 is connected to the rotating head and is fitted onto the upper outer circumferential surface of the screwdriver bit 322. The locking sleeve 323 has a locked position and an unlocked position. When the locking sleeve 323 is in the locked position, the screwdriver bit 322 is connected to the rotating head through the locking sleeve 323 and can rotate with the rotating head. When the locking sleeve 323 is in the unlocked position, the screwdriver bit 322 can disengage from the locking sleeve 323 and be released from the rotating head. The screw-driving mechanism 300 further includes a third drive unit 350. The stator of the third drive unit 350 is disposed on the second plate 312, and the mover of the third drive unit 350 is connected to the locking sleeve 323. The third drive unit 350 is also configured to drive the locking sleeve 323 to switch between the locked position and the unlocked position.

[0077] The locking sleeve 323 can be a commercially available standard product, comprising an inner sleeve, a hub, extruders, and an outer sleeve (not shown in the figure). The inner sleeve is connected to the rotating head. The hub is fitted onto the outer circumferential surface of the inner sleeve, and the hub has a plurality of mounting holes spaced circumferentially thereon, the mounting holes penetrating the hub radially through the inner sleeve. There are multiple extruders, each partially disposed within one of the mounting holes and movable radially along the inner sleeve. The outer sleeve is fitted onto at least a portion of the outer circumferential surface of the hub and is configured to move axially relative to the hub, thereby switching the locking sleeve 323 between a locked position and an unlocked position.

[0078] It is easy to understand that in the assembly fixture, the axial direction of the locking sleeve 323 is vertical. When the locking sleeve 323 is in the locked position, the outer sleeve applies a radially inward compressive force to the pressing member along the locking sleeve 323, thereby causing the pressing member to move along the mounting hole towards the inner sleeve and apply a radially inward compressive force to the inner sleeve, thus causing the inner sleeve to hold the bit. When the locking sleeve 323 switches from the locked position to the unlocked position, the radially inward compressive force applied by the outer sleeve to the pressing member along the locking sleeve 323 gradually decreases to zero, causing the pressing member to move along the mounting hole away from the inner sleeve until the pressing member no longer applies a radially inward compressive force to the inner sleeve.

[0079] The mover of the third drive unit 350 is connected to the outer casing, and the third drive unit 350 is configured to drive the outer casing to move vertically. The third drive unit 350 may be a telescopic cylinder.

[0080] In this embodiment of the invention, moving the outer sleeve downwards allows the locking sleeve 323 to switch from the locked position to the unlocked position, and moving the outer sleeve upwards allows the locking sleeve 323 to switch from the unlocked position to the locked position. The free end of the piston rod of the third drive unit 350 is positioned downwards, so that when the piston rod of the third drive unit 350 extends, it drives the outer sleeve downwards, causing the locking sleeve 323 to switch from the locked position to the unlocked position; and when the piston rod of the third drive unit 350 retracts, it drives the outer sleeve upwards, causing the locking sleeve 323 to switch from the unlocked position to the locked position.

[0081] Furthermore, it is preferable that the inner sleeve is flexibly connected to the rotating head, allowing the inner sleeve to move relative to the rotating head. This facilitates the transmission of rotational torque, ensuring that the bit 322 rotates with the rotating head, and also allows the bit 322 to quickly disengage from the locking sleeve 323 when the connection between the bit 322 and the rotating head is released.

[0082] Optionally, continue to refer to Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 8 and combined Figure 9 The screw-driving mechanism 300 further includes a first quick-connect coupling 360, a second quick-connect coupling 370, and a second mounting plate 380. The first quick-connect coupling 360 is connected to the first plate body 311. The second quick-connect coupling 370 is detachably connected to the first quick-connect coupling 360. The second mounting plate 380 is connected to the second quick-connect coupling 370. The bit sleeve 330 is connected to the second mounting plate 380. In other words, the bit 323 is detachably connected to the first plate body 311 via the second mounting plate 380, the second quick-connect coupling 370, and the first quick-connect coupling 360. The first quick-connect coupling 360 and the second quick-connect coupling 370 can be any commercially available suitable quick-connect coupling, such as a pneumatic quick-connect coupling.

[0083] For ease of description, the bit 322, the bit sleeve 330, the second mounting plate 380 and the second quick-change connector 370 are collectively referred to as the second assembly.

[0084] Thus, the process of replacing the bit 322 and bit sleeve 330 of the assembly fixture may include the following steps:

[0085] First, the assembly fixture is moved to the disassembly station.

[0086] Then, the first sub-drive unit 341 drives the first plate 311 to move downward by a second preset distance, so that the bit sleeve 330 and the second mounting plate 380 enter the placement seat in the disassembly station.

[0087] Subsequently, the third drive unit 350 drives the locking sleeve 323 to switch to the unlocked position, and the first quick-change connector 360 and the second quick-change connector 370 open.

[0088] Then, the first sub-drive unit 341 drives the first plate 311 to move upward by the second preset distance, so that the bit 322 disengages from the locking sleeve 323 and the first quick-change connector 360 disengages from the second quick-change connector 370.

[0089] Next, the assembly fixture, excluding the second assembly, is moved to the installation station. The second assembly to be installed is placed at the installation station, and the second quick-connect connector 370 in the second assembly to be installed is open.

[0090] Next, the first sub-drive unit 341 drives the first plate 311 to move downward by the second preset distance, so that the locking sleeve 323 is fitted onto the outer peripheral surface of the bit 322 of the second assembly to be installed, and so that the first quick-change connector 360 engages with the second quick-change connector 370 of the second assembly to be installed.

[0091] Next, the third drive unit 350 drives the locking sleeve 323 to switch to the locking position, and locks the first quick-change connector 360 and the second quick-change connector 370.

[0092] Finally, the first sub-drive unit 341 drives the first plate 311 to move upward by the second preset distance.

[0093] Please continue to refer to this. Figure 1 and Figure 2 and combined Figure 10 and Figure 11 The assembly fixture further includes a pressing mechanism 400. The pressing mechanism 400 is used to apply extrusion force to the target product to press the target product into the corresponding mounting position.

[0094] Optionally, the pressing mechanism 400 includes a fourth drive unit 410, a pressure sensing element 420, and a pressing head 430. The fourth drive unit 410 is located below the second base 120, and the stator of the fourth drive unit 410 is floatingly connected to the first base 110, so that the fourth drive unit 410 can move vertically relative to the first base 110. The output end of the fourth drive unit 410 is downwardly oriented. The pressure sensing element 420 is disposed on the lower surface of the second base 120. The pressing head 430 is connected to the output end of the fourth drive unit 410 and located below the fourth drive unit 410. The pressing head 430 can move vertically under the drive of the fourth drive unit 410. During operation, the pressure head 430 is first positioned above the target product, and then the fourth drive unit 410 is controlled to operate so that the pressure head 430 applies a downward extrusion force to the target product. At the same time, the fourth drive unit 410 is subjected to a reaction force from the target product and moves upward relative to the first seat 110, and applies pressure to the second seat 120, so that the pressure detection element 420 can detect the extrusion force applied to the target product by the pressing mechanism 400 in real time.

[0095] In an optional embodiment, the fourth drive unit 410 is a telescopic cylinder. Additionally, the pressing mechanism 400 may include a third mounting plate 440, through which the pressure sensing element 420 is connected to the lower surface of the second seat 120.

[0096] Preferably, the pressing mechanism 400 further includes a third quick-connect coupling 450 and a fourth quick-connect coupling 460. The third quick-connect coupling 450 is connected to the output end of the fourth drive unit 410, and is at least partially made of a ferromagnetic material. The fourth quick-connect coupling 460 is at least partially made of a magnetic material; for example, the fourth quick-connect coupling 460 includes a housing 461 and a magnet 462 disposed within the housing 461. The fourth quick-connect coupling 460 is magnetically connected to the third quick-connect coupling 450. The pressing head 430 is connected to the fourth quick-connect coupling 460. That is, the pressing head 430 is detachably connected to the output end of the fourth drive unit 410 via the fourth quick-connect coupling 460 and the third quick-connect coupling 450. Thus, the pressing head 430 connected to the fourth drive unit 410 can be replaced according to the specifications of the target product.

[0097] Further, please refer to Figure 2 and Figure 3 and combined Figure 12The assembly fixture also includes a vision guidance mechanism 500, which includes an image acquisition element 510 connected to the base 100 and configured to acquire images of the target object. The image acquisition element 510 is also communicatively connected to an external control unit, which is communicatively connected to the robotic arm. The control unit is configured to receive images of the target object, acquire its position information, and control the robotic arm's movement based on the target object's position information, so that the robotic arm moves the assembly fixture to a target position. The target object is, for example, the target product. Accordingly, the target position can be a position where the screw-driving mechanism 300 is positioned directly above the screw mounting position on the target product, or a position where the pressing mechanism 400 is positioned above the target product, depending on the specific circumstances.

[0098] Optionally, the visual guidance mechanism 500 further includes a light source 520, which is disposed on the base 100 and can be arranged coaxially with the image acquisition element 510. The light source 520 is used to illuminate the target product to improve the quality of the image acquired by the image acquisition element 510.

[0099] Optionally, the visual guidance mechanism 500 further includes a mounting bracket 530, on which the image acquisition element 510 and the light source 520 are both connected. The mounting bracket 530 is also connected to the base 100. That is, the image acquisition element 510 and the light source 520 are both connected to the base 100 through the mounting bracket 530.

[0100] Furthermore, this utility model embodiment also provides an assembly system, which includes the aforementioned assembly fixture and robotic arm. The assembly fixture is connected to the end of the robotic arm via the base 100, specifically the second base body 120.

[0101] While the present invention has been disclosed above, it is not limited thereto. Those skilled in the art can make various modifications and variations to the present invention without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and variations.

Claims

1. An assembly tooling, characterized in that, The assembly fixture has a first position and a second position located on a preset plane, and includes: Base; A staple feeding mechanism includes a staple feeding tube, a first driving unit, and a conveying member; the staple feeding tube is connected to the base, and the outlet end of the staple feeding tube is arranged facing the first position; the first driving unit is disposed on the base; in a preset direction perpendicular to the preset plane, the conveying member is located on the side of the outlet end of the staple feeding tube close to the preset plane, and a receiving cavity is formed on the conveying member, the end of the receiving cavity facing the outlet end of the staple feeding tube being an open end; the conveying member is also connected to the first driving unit and can rotate under the drive of the first driving unit, so that the open end of the receiving cavity can switch between the first position and the second position; and, A screw-driving mechanism is connected to the base and is positioned corresponding to the second position.

2. The assembly fixture according to claim 1, characterized in that, The conveying component includes a base plate and a receiving tube; the base plate is connected to the first driving part; the receiving tube is connected to the base plate and extends along the preset direction, the lumen of the receiving tube constitutes the receiving cavity, the end of the receiving tube away from the outlet end of the feeding tube is a closed end, and the end of the receiving tube facing the outlet end of the feeding tube is open to form the opening end of the receiving cavity.

3. The assembly fixture according to claim 2, characterized in that, The receiving tube includes a tube body, an elastic element, and a sealing ring; the tube body is connected to the base plate and extends along the preset direction; the end of the tube body away from the outlet end of the feeding tube is a closed end, and the end of the receiving tube facing the outlet end of the feeding tube is open; the sealing ring has an inner hole extending through its own axial direction, and the sealing ring is sleeved on a portion of the outer circumferential surface of the tube body through the inner hole, and the end of the sealing ring away from the base plate protrudes from the end of the tube body facing the outlet end of the feeding tube, or is flush with the end of the tube body facing the outlet end of the feeding tube; the elastic element is disposed between the sealing ring and the base plate; The cavity of the receiving tube includes at least the cavity of the tube body, and one end of the receiving tube facing the outlet end of the nail feeding tube is flush with the end of the sealing ring away from the base plate.

4. The assembly fixture according to claim 3, characterized in that, The inner hole includes a first hole segment and a second hole segment arranged in a direction away from the base plate, wherein the diameter of the first hole segment is smaller than the diameter of the second hole segment; the receiving tube also includes a limiting part, which is disposed at the end of the tube body away from the base plate and extends radially outward along the tube body; the limiting part is located inside the second hole segment, and the outer diameter of the limiting part is larger than the diameter of the first hole segment and smaller than or equal to the diameter of the second hole segment.

5. The assembly fixture according to claim 1, characterized in that, The screw-driving mechanism includes a first mounting plate, a screw gun assembly, a bit sleeve, and a second drive unit. The first mounting plate includes a first plate body and a second plate body connected to each other. The screw gun assembly includes a screw gun body and a bit. The screw gun body is disposed on the second plate body and has a rotating head, which is arranged facing the second position. The bit is connected to the rotating head and partially passes through the bit sleeve. The bit sleeve is connected to the first plate body. The second drive unit includes a first sub-drive unit and a second sub-drive unit. The first sub-drive unit is disposed on the base and connected to the first plate body, and is configured to drive the first plate body to move relative to the base along the preset direction. The second sub-drive unit is disposed on the first plate body and connected to the second plate body, and is configured to drive the second plate body to move relative to the first plate body along the preset direction.

6. The assembly fixture according to claim 5, characterized in that, The bit is detachably connected to the rotating head, and the bit sleeve is detachably connected to the first plate.

7. The assembly fixture according to claim 6, characterized in that, The screwdriver assembly also includes a locking sleeve; the locking sleeve is connected to the rotating head and is fitted onto the outer side of the end of the bit near the screwdriver body; the locking sleeve has a locked position and an unlocked position, when the locking sleeve is in the locked position, the screwdriver is connected to the bit; when the locking sleeve is in the unlocked position, the bit is allowed to disengage from the locking sleeve and be disconnected from the rotating head; The screw-driving mechanism further includes a third drive unit, which is disposed on the second plate and connected to the locking sleeve, and is configured to drive the locking sleeve to switch between the locked position and the unlocked position.

8. The assembly fixture according to claim 7, characterized in that, The locking sleeve includes an inner sleeve, a hub, an extruder, and an outer sleeve. The inner sleeve is connected to the rotating head. The hub is fitted onto the outer circumferential surface of the inner sleeve, and the hub has a plurality of mounting holes spaced apart along its circumference, the mounting holes penetrating the hub radially through the inner sleeve. There are multiple extruders, each partially disposed within one of the mounting holes and capable of radial movement along the inner sleeve. The outer sleeve is fitted onto at least the outer circumferential surface of the hub and is configured to move axially relative to the hub, allowing the locking sleeve to switch between a locked position and an unlocked position. When the locking sleeve is in the locked position, the outer sleeve applies radial extrusion force to the inner sleeve through the extruder; when the locking sleeve is in the unlocked position, the outer sleeve stops applying extrusion force to the inner sleeve. The third drive unit is connected to the outer casing and is configured to drive the outer casing to move relative to the wheel hub in the preset direction.

9. The assembly fixture according to claim 6, characterized in that, The screw-driving mechanism further includes a first quick-connect coupling, a second quick-connect coupling, and a second mounting plate; the first quick-connect coupling is connected to the first plate; the second quick-connect coupling is detachably connected to the first quick-connect coupling; and the second mounting plate is connected to the second quick-connect coupling. The bit sleeve is connected to the second mounting plate.

10. The assembly fixture according to claim 1, characterized in that, The base includes a first base body and a second base body connected at an angle; The assembly fixture further includes a pressing mechanism, which includes a fourth driving unit, a pressure sensing element, and a pressing head. The fourth driving unit is floatingly connected to the first base body, so that the fourth driving unit can move relative to the base body along the preset direction. The fourth driving unit and the second base body are arranged in the preset direction along the direction from the opening end of the receiving cavity to the outlet end of the nail feeding tube. The pressure sensing element is disposed on the surface of the second base body facing the fourth driving unit. The pressing head is connected to the side of the fourth driving unit away from the second base body and can move along the preset direction under the drive of the fourth driving unit.

11. The assembly tooling according to claim 10, characterized in that, The pressing mechanism further includes a third quick-connect coupling and a fourth quick-connect coupling; the third quick-connect coupling is at least partially made of ferromagnetic material and is connected to the output end of the fourth drive unit; the fourth quick-connect coupling is at least partially made of magnetic material and is magnetically connected to the third quick-connect coupling; the pressing head is connected to the fourth quick-connect coupling.

12. The assembly fixture according to claim 1, characterized in that, The assembly fixture also includes a vision guidance mechanism, which includes an image acquisition element disposed on the base.

13. An assembly system, characterized in that, It includes a robotic arm and an assembly fixture as described in any one of claims 1-12, wherein the base of the assembly fixture is connected to the end of the robotic arm.

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