Improved nail suction and locking device capable of following z-axis height adaptation

Abstract

The utility model relates to automatic assembly technical field, concretely relates to an improved generation can follow Z axle height self -adaptation's suction nail lock pays device, include: the mounting base is provided with the drive piece at the top, the output end of drive piece is fixedly connected with the screw rod through the shaft coupling, the screw rod outside thread is connected with the internal thread seat, the suction mechanism includes the hook of installing the internal thread seat outside, the hook's hook part is provided with the adjustable height Z -shaped rod, Z -shaped rod is fixedly connected with the L -shaped strip one side away from the hook, the utility model discloses through setting up suction mechanism and lock pays mechanism, when actual use, can according to the screw and the cooperation position of batch head that will carry on lock pays, adjust the distance between batch head and suction nozzle, make batch head and suction nozzle reach the appropriate distance, in the instant of batch head starting rotation, and the torsional strength can more directly, stably transmit to the screw, reduce the lateral impact, be favorable to the promotion lock pays quality.

Description

Technical Field

[0001] This utility model relates to the field of automated assembly technology, specifically to an improved suction pin locking device that can adaptively follow the height of the Z-axis. Background Technology

[0002] In industrial sectors such as electronics manufacturing and home appliance assembly, automatic screw fastening machines have become key equipment for improving production efficiency and consistency. Among them, screw fastening devices that use vacuum adsorption to pick up and transport screws are widely used due to their wide applicability and high speed. As the manufacturing industry develops towards intelligence and flexibility, higher requirements are placed on the precision, efficiency, and adaptability of fastening equipment, leading to the rapid development of screw fastening devices.

[0003] Currently, when tightening screws, a vacuum device is connected to a suction nozzle to grip the screw. After adjusting the position of the suction nozzle to move the gripped screw to a precise position, the screwdriver bit rotates to tighten the screw, thus completing the screw tightening.

[0004] In traditional screw fastening devices, the distance between the nozzle and the bit is fixed. When fastening screws at different heights, the distance between the bit and the nozzle can cause the screw to fall out of the nozzle, affecting the fastening quality. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an improved suction nail fastening device that can adaptively follow the height of the Z-axis, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides an improved suction pin fastening device that can adaptively follow the Z-axis height, comprising: The mounting base has a driving component on its top. The output end of the driving component is fixedly connected to a lead screw via a coupling. An internal threaded seat is threaded to the outer side of the lead screw. The suction mechanism includes a hook mounted on the outside of an internal threaded seat. The hook has a height-adjustable Z-shaped rod at its hook portion. An L-shaped strip is fixedly connected to the side of the Z-shaped rod away from the hook. A suction nozzle for sucking up screws is provided on the L-shaped strip. The locking mechanism includes a cylinder installed on the outside of the internal thread seat. The telescopic end of the cylinder is provided with a spring buffer assembly. An L-shaped seat is fixedly connected to the side of the spring buffer assembly away from the cylinder. A drive motor is installed on the top of the L-shaped seat. A screwdriver bit is installed on the output shaft of the drive motor.

[0007] Preferably, a slide rail is installed on the outer side of the mounting base, and a slide groove matching the slide rail is provided on the outer side of the internal thread seat, and the slide rail is slidably connected to the inner wall of the slide groove.

[0008] Preferably, the bottom of the hook has a through first screw hole, and an adjusting bolt is threaded onto the inner wall of the first screw hole. The adjusting bolt is rotatably connected to the outside of the Z-shaped rod.

[0009] Preferably, the hook has a second screw hole extending into the first screw hole on its outer side, and a limit bolt is threadedly connected to the inner wall of the second screw hole.

[0010] Preferably, the L-shaped base has a through slot, the side of the L-shaped bar away from the Z-shaped rod passes through the through slot and extends to the bottom of the L-shaped base, and the end of the bit away from the drive motor extends into the mouthpiece.

[0011] Preferably, the spring buffer assembly includes a cover fixedly connected to the telescopic end of the cylinder, a buffer spring fixedly connected to the bottom of the cover, a box fixedly connected to the end of the buffer spring away from the cylinder, the box fixedly connected to the top of the L-shaped seat, and the side of the cover near the box extending into the box and provided with a limiting member.

[0012] Preferably, a limiting strip is fixedly connected to the outer side of the L-shaped seat, a limiting groove is formed on the outer side of the L-shaped strip, and the limiting strip is slidably connected to the inner wall of the limiting groove.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: 1. By setting up a suction mechanism and a locking mechanism, this utility model allows for adjustment of the distance between the bit and the suction nozzle during actual use, based on the mating position of the screw to be locked and the bit. This ensures that the distance between the bit and the suction nozzle is appropriate, allowing the torque to be transmitted to the screw more directly and smoothly at the moment the bit starts rotating, reducing lateral impact and improving locking quality.

[0014] 2. This utility model, by incorporating adjusting bolts and limiting bolts, allows operators to easily and continuously adjust the suction and screw spacing on-site without disassembling core components or replacing gaskets. This can be completed within minutes, completely solving the pain points of cumbersome and time-consuming traditional debugging methods. This significantly shortens equipment preparation time when changing screw specifications on the production line, improving overall equipment utilization and production flexibility. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the nail-attaching device of this utility model from the front. Figure 2 This is a side view of the overall structure of the nail-attaching device of this utility model; Figure 3 This is a schematic diagram showing the connection between the locking mechanism and the suction mechanism of this utility model; Figure 4 This is a schematic diagram showing the connection between the suction mechanism and the internal thread seat of this utility model; Figure 5 This is a schematic diagram of the connection between the hook and the Z-shaped rod of this utility model; Figure 6 This is a partial structural diagram of the L-shaped seat of this utility model.

[0017] The labels in the diagram represent: 1. Mounting base; 2. Drive component; 3. Lead screw; 4. Internal thread seat; 5. Locking mechanism; 51. Spring buffer assembly; 511. Box body; 512. Buffer spring; 513. Cover; 52. L-shaped seat; 53. Screwdriver bit; 54. Drive motor; 55. Cylinder; 56. Through slot; 6. Suction mechanism; 61. Suction nozzle; 62. L-shaped bar; 63. Adjusting bolt; 64. Z-shaped rod; 65. Hook; 66. Limit bolt. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Reference Figure 1-6 An improved suction pin fastening device capable of adaptively following Z-axis height is disclosed, comprising: Mounting base 1, with a driving component 2 on the top of the mounting base 1. The output end of the driving component 2 is fixedly connected to a lead screw 3 via a coupling. The lead screw 3 is threaded to an internal thread seat 4. The driving component 2 includes a servo motor and a transmission structure, which is used to drive the lead screw 3 to rotate. When the lead screw 3 rotates, it drives the internal thread seat 4 to move up and down, thereby facilitating the suction nozzle 61 to pick up the screw. Specifically, a slide rail is installed on the outer side of the mounting base 1, and a slide groove matching the slide rail is provided on the outer side of the internal thread seat 4. The slide rail is slidably connected to the inner wall of the slide groove. This structure ensures that the internal thread seat 4 performs high-precision and stable linear motion along the Z-axis under the drive of the lead screw 3, providing a stable vertical feed foundation for the entire locking process.

[0021] The suction mechanism 6 includes a hook 65 installed on the outside of the internal thread seat 4. The hook 65 is provided with a height-adjustable Z-shaped rod 64. An L-shaped strip 62 is fixedly connected to the side of the Z-shaped rod 64 away from the hook 65. The up and down movement of the Z-shaped rod 64 can drive the L-shaped strip 62 to move up and down, thereby adjusting the height of the suction nozzle 61 installed on the L-shaped strip 62. The L-shaped strip 62 is provided with a suction nozzle 61 for picking up screws. The outside of the suction nozzle 61 is provided with an interface for connecting to a vacuum device. The suction nozzle 61 is connected to an external vacuum generator through a pipeline to generate suction force to grab the screw. Specifically, the bottom of the hook 65 has a through first screw hole, and the inner wall of the first screw hole is threaded with an adjusting bolt 63. The adjusting bolt 63 is rotatably connected to the outside of the Z-shaped rod 64 through a bearing. By rotating the adjusting bolt 63, the Z-shaped rod 64, together with the L-shaped strip 62 and the suction nozzle 61 on it, can be driven to move up and down relative to the hook 65, thereby steplessly adjusting the extension length of the suction nozzle 61.

[0022] Specifically, a second screw hole extending into the first screw hole is provided on the outer side of the hook 65. A limit bolt 66 is threadedly connected to the inner wall of the second screw hole. When the height of the suction nozzle 61 is adjusted to the target position by adjusting the bolt 63, the limit bolt 66 is tightened. Its end can abut against the Z-shaped shaft or the adjusting bolt 63 to form a mechanical lock, effectively fixing the adjustment result and ensuring that the adjusted position is firm and reliable, preventing loosening under vibration or load.

[0023] The fastening mechanism 5 includes a cylinder 55 installed on the outside of the internal thread seat 4. A spring buffer assembly 51 is provided at the telescopic end of the cylinder 55. An L-shaped seat 52 is fixedly connected to the side of the spring buffer assembly 51 away from the cylinder 55. A drive motor 54 is installed on the top of the L-shaped seat 52. A screwdriver bit 53 is installed on the output shaft of the drive motor 54. The screwdriver bit 53 can be removed from the output shaft of the drive motor 54 and can fasten different types of screws as needed.

[0024] The drive motor 54 is preferably an electric spindle with high speed and precise torque control.

[0025] Specifically, the L-shaped base 52 has a through slot 56, the side of the L-shaped bar 62 away from the Z-shaped rod 64 passes through the through slot 56 and extends to the bottom of the L-shaped base 52, and the end of the bit 53 away from the drive motor 54 extends into the mouthpiece 61. This structure ensures that the suction mechanism 6 and the locking mechanism 5 are linked in the Z-axis movement, and at the same time, the bit 53 can accurately extend into the mouthpiece 61 to operate the screw.

[0026] Specifically, the spring buffer assembly 51 includes a cover 513 fixedly connected to the telescopic end of the cylinder 55, a buffer spring 512 fixedly connected to the bottom of the cover 513, a box 511 fixedly connected to the end of the buffer spring 512 away from the cylinder 55, the box 511 fixedly connected to the top of the L-shaped seat 52, and the side of the cover 513 near the box 511 extending into the box 511 and provided with a limiting member, which can be a retaining ring or an end with a larger diameter.

[0027] This component enables the cylinder 55 to provide flexible contact and constant downward pressure through the buffer spring 512 when driving the bit 53 to lock, avoiding rigid impact damage to the screw or workpiece, and helping to absorb overload at the end of screw insertion.

[0028] Specifically, a limiting strip is fixedly connected to the outer side of the L-shaped seat 52, and a limiting groove is opened on the outer side of the L-shaped strip 62. The limiting strip is slidably connected to the inner wall of the limiting groove. Under the action of the limiting strip and the limiting groove, the movement trajectory of the L-shaped strip 62 is limited, ensuring the stability of the L-shaped strip 62 during the movement and preventing it from deflecting.

[0029] The workflow of this utility model is as follows: First, the screw-locking device is integrated into the automated production line or the end effector of a robotic arm via the mounting base 1. Based on the specifications of the screw to be locked and its feeding position, the controller activates the drive unit 2, which in turn drives the lead screw 3 to rotate. Under the guidance and constraint of the slide rail and groove, the internal thread seat 4 drives the suction mechanism 6 and the locking mechanism 5 on it to move along the Z-axis for rough height positioning until the suction nozzle 61 descends to a position close to the screw feeding tray or feeder. When the suction nozzle 61 is aligned with the target screw, the external vacuum device is activated, generating negative pressure at the tip of the suction nozzle 61 to stably adsorb the screw. The entire device, carrying the attracted screw, moves to a predetermined position above the workpiece. The drive unit 2 then operates again, precisely positioning the screw via the lead screw 3, causing it to descend to near the area directly above the locking hole on the workpiece surface. When the screw specifications are changed on the production line, or when the workpiece surface height is inconsistent, it is necessary to adjust the distance between the tip of the bit 53 and the tip of the nozzle 61. First, slightly loosen the limiting bolt 66 on the side of the hook 65. Then, directly rotate the adjusting bolt 63. Rotating the adjusting bolt 63 clockwise or counterclockwise will precisely push or pull back the Z-shaped rod 64, thereby causing the L-shaped strip 62 and the suction nozzle 61 fixed thereon to move up and down relative to the hook 65. The operator can continuously and steplessly adjust the suction-screw spacing to the optimal value matching the new screw specifications by observing the scale or simple measurement (usually so that the tip of the bit 53 is slightly lower than the suction surface of the suction nozzle 61, or determined according to the screw design). After adjustment, tighten the limit bolt 66 again to secure the combined position of the Z-shaped rod 64 and the adjusting bolt 63 by using the friction or tightening force generated by it. After the height positioning is completed, the cylinder 55 extends, and the spring buffer assembly 51 pushes the L-shaped seat 52, drive motor 54, and screwdriver bit 53 to move downward as a whole. Since the suction-screw spacing has been pre-optimized, the screwdriver bit 53 can smoothly and accurately contact the screw head slot that has been suctioned and positioned by the suction nozzle 61; Upon contact, the buffer spring 512 activates, providing a gentle initial clamping force to prevent lateral impact on the screw. Immediately afterwards, the drive motor 54 starts, and its output shaft drives the screwdriver bit 53 to rotate at high speed, screwing the screw into the workpiece. As the screw is screwed in, the cylinder 55 continuously provides downward pressure, and the spring buffer assembly 51 can adaptively compensate for minor changes in the thread fit, maintaining a constant locking pressure until the preset torque or depth is reached, at which point the drive motor 54 stops. After the screw is tightened, the drive motor 54 stops, the cylinder 55 retracts, and the screwdriver bit 53 is lifted, disengaging from the screw. Subsequently, the drive unit 2 drives the lead screw 3 to lift the entire device, releasing the vacuum, and the device moves to the starting point of the next work cycle, ready to pick up the next screw.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An improved suction pin fastening device that can adaptively follow the Z-axis height, characterized in that, include: Mounting base (1), the top of the mounting base (1) is provided with a driving component (2), the output end of the driving component (2) is fixedly connected to a lead screw (3) through a coupling, and the outer side of the lead screw (3) is threadedly connected to an internal thread seat (4). The suction mechanism (6) includes a hook (65) installed on the outside of the internal thread seat (4). The hook (65) is provided with a height-adjustable Z-shaped rod (64). An L-shaped strip (62) is fixedly connected to the side of the Z-shaped rod (64) away from the hook (65). A suction nozzle (61) for sucking up screws is provided on the L-shaped strip (62). The locking mechanism (5) includes a cylinder (55) installed on the outside of the internal thread seat (4). The telescopic end of the cylinder (55) is provided with a spring buffer assembly (51). An L-shaped seat (52) is fixedly connected to the side of the spring buffer assembly (51) away from the cylinder (55). A drive motor (54) is installed on the top of the L-shaped seat (52). A screwdriver bit (53) is installed on the output shaft of the drive motor (54).

2. The improved suction pin fastening device that can adaptively follow the Z-axis height according to claim 1, characterized in that, The mounting base (1) is equipped with a slide rail on its outer side, and the internal thread seat (4) is provided with a slide groove that matches the slide rail on its outer side. The slide rail is slidably connected to the inner wall of the slide groove.

3. The improved suction pin fastening device that can adaptively follow the Z-axis height according to claim 1, characterized in that, The bottom of the hook (65) has a through first screw hole, and the inner wall of the first screw hole is threaded with an adjusting bolt (63), which is rotatably connected to the outside of the Z-shaped rod (64).

4. The improved suction pin fastening device that can adaptively follow the Z-axis height according to claim 1, characterized in that, The hook (65) has a second screw hole extending into the first screw hole on its outer side, and a limit bolt (66) is threadedly connected to the inner wall of the second screw hole.

5. The improved suction pin fastening device that can adaptively follow the Z-axis height according to claim 1, characterized in that, The L-shaped seat (52) has a through slot (56) and the L-shaped bar (62) extends through the slot (56) on the side away from the Z-shaped rod (64) and extends to the bottom of the L-shaped seat (52). The end of the bit (53) away from the drive motor (54) extends into the mouthpiece (61).

6. The improved suction pin fastening device that can adaptively follow the Z-axis height according to claim 1, characterized in that, The spring buffer assembly (51) includes a cover (513) fixedly connected to the telescopic end of the cylinder (55), a buffer spring (512) fixedly connected to the bottom of the cover (513), a box (511) fixedly connected to the end of the buffer spring (512) away from the cylinder (55), the box (511) fixedly connected to the top of the L-shaped seat (52), and the side of the cover (513) near the box (511) extending into the box (511) and provided with a limiting member.

7. An improved suction-cling device capable of adaptively following Z-axis height according to claim 1, characterized in that, A limiting strip is fixedly connected to the outside of the L-shaped seat (52), and a limiting groove is opened on the outside of the L-shaped strip (62). The limiting strip is slidably connected to the inner wall of the limiting groove.

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