Efficient pneumatic air suction type screw locking device

By combining multi-level buffering and modular adjustment, the problems of compatibility, buffering performance and adjustment complexity of traditional screw fastening devices are solved, achieving efficient and stable screw fastening and improving the adaptability and accuracy of the equipment.

CN223889392UActive Publication Date: 2026-02-10MIRASK (SUZHOU) ROBOT CO LTD
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Patent Information

Application Number
CN202520483551.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-10
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Traditional screw fastening devices suffer from insufficient compatibility, poor buffering performance, complex adjustment, and redundant structure, resulting in low efficiency and low precision.

Method used

By combining multi-stage buffering with modular adjustment, and through lifting cylinders, multi-stage buffer springs, guide frames, and modular adjustment structures, it can flexibly adapt to screw specifications, bit sizes, and working surface height.

Benefits of technology

It significantly improves equipment compatibility and operational efficiency, reduces locking impact, improves positioning accuracy, and reduces equipment size.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223889392U_ABST
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Abstract

The utility model discloses an efficient pneumatic air suction type screw locking device which comprises a back plate, a lifting air cylinder, a first-stage linear rail, a lifting carrying table, a screw rod, a guide frame, a linear bearing, a guide rod, a lower cantilever, a screw suction nozzle, a side cantilever, a buffer, a screw rack and a screw machine head. A first-stage linear guide rail is arranged on the base, a lifting carrying table is arranged on the first-stage linear guide rail, a lifting air cylinder is connected to the lifting carrying table through a screw rod, a guide frame is arranged on the lifting carrying table, a linear bearing is arranged on the guide frame, a guide rod is connected into the linear bearing in a penetrating mode, and a lower cantilever is connected to the lower portion of the guide rod. By means of the mode, according to the efficient pneumatic air-breathing type screw locking device, the multi-stage buffering mode and the modularized adjusting mode are effectively combined, the compatibility of the device to the screw specification, the bit size and the working face height is remarkably improved, meanwhile, locking impact is reduced, and the working efficiency and the positioning precision are improved.
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Description

Technical Field

[0001] This utility model relates to the field of screw fastening machines, and in particular to a high-efficiency pneumatic suction type screw fastening device. Background Technology

[0002] Traditional screw fastening devices generally suffer from the following problems: Insufficient compatibility: They are difficult to adapt to screws, bits, and working surface heights of different sizes, requiring frequent replacement of parts for adaptation and adjustment, resulting in low efficiency; Poor buffering performance: They lack a multi-stage buffering structure during the fastening process, and after changing models, stroke adjustment issues can easily cause damage to screws or workpieces due to impact overload; Complex adjustment: The stroke and height adjustment of existing equipment rely on repeated manual adjustments, resulting in low accuracy and time consumption; Structural redundancy: The transmission and guiding mechanisms are designed separately, occupying a large space and lacking stability. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a high-efficiency pneumatic suction screw fastening device. Through the effective combination of multi-stage buffering and modular adjustment, the device significantly improves the compatibility of the equipment with screw specifications, bit size and working surface height, while reducing fastening impact and improving work efficiency and positioning accuracy.

[0004] To solve the above-mentioned technical problems, the present invention provides a high-efficiency pneumatic suction screw fastening device, comprising a back plate, a lifting cylinder, a primary linear guide, a lifting platform, a screw, a guide frame, a linear bearing, a guide rod, a lower cantilever, a screw suction nozzle, a side cantilever, a buffer, a screw machine frame, and a screw head. The back plate is provided with a lifting cylinder and a primary linear guide along the Z-axis. A lifting platform is mounted on the primary linear guide. The lifting platform is connected to the lifting cylinder via the screw. A guide frame is mounted on the lifting platform. A linear bearing is mounted on the guide frame. A guide rod passes through the linear bearing. A lower cantilever is connected to the guide rod. A screw suction nozzle is installed at the lower end of the lower cantilever. A side cantilever is connected to the lower cantilever. A buffer that pushes upwards against the side cantilever is mounted on the back plate. A screw machine frame is mounted on the lifting platform, and a screw head is mounted on the screw machine frame.

[0005] In a preferred embodiment of this utility model, a primary buffer spring is threaded through the screw, and a secondary buffer spring is threaded through the guide rod.

[0006] In a preferred embodiment of this utility model, a secondary linear guide is provided on the lifting platform, the lower cantilever is L-shaped and suspended on the secondary linear guide, and the screw suction nozzle is coaxial with the screw head.

[0007] In a preferred embodiment of this utility model, the guide frame has a T-shaped structure and forms a protrusion. The linear bearing passes through the protrusion along the z-axis. The protrusion is provided with a left-side set screw, a right-side set screw, and a center set screw in the horizontal direction. The left-side set screw, the right-side set screw, and the center set screw are used to adjust the height of the linear bearing on the guide frame and adjust the deformation length of the secondary buffer spring.

[0008] In a preferred embodiment of this utility model, the upper end of the lifting platform is provided with a U-shaped notch, the notch contains the screw, and the lifting platform is provided with several stroke adjustment holes on both sides of the notch. An adapter block is installed on any one of the stroke adjustment holes. The adapter block is perforated, and the screw passes through the perforation. A stroke adjustment nut and a spring washer are provided on the screw. The first-stage buffer spring is disposed between the spring washer and the adapter block.

[0009] In a preferred embodiment of this utility model, the lower end of the lifting platform is provided with several levels of machine head height adjustment holes on both sides of the secondary linear rail, and the screw frame is installed on any level of the machine head height adjustment hole.

[0010] The beneficial effects of this utility model are as follows: The high-efficiency pneumatic suction screw fastening device provided by this utility model, through the effective combination of multi-stage buffering and modular adjustment, significantly improves the compatibility of the equipment with screw specifications, bit size and working surface height, while reducing fastening impact and improving work efficiency and positioning accuracy. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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, wherein:

[0012] Figure 1 This is an overall structural diagram of a preferred embodiment of the high-efficiency pneumatic suction screw fastening device of this utility model;

[0013] Figure 2 This is a structural diagram of the guide frame;

[0014] Figure 3 This is a structural diagram of the stroke adjustment hole;

[0015] Figure 4 This is a structural diagram of the machine head height adjustment hole. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figure 1-4 As shown, the embodiments of this utility model include:

[0018] A high-efficiency pneumatic suction-type screw fastening device includes a back plate 1, a lifting cylinder 2, a primary linear guide 3, a lifting platform 4, a screw 5, a guide frame 6, a linear bearing 7, a guide rod 8, a lower cantilever 9, a screw suction nozzle 10, a side cantilever 11, a buffer 12, a screw machine frame 13, and a screw machine head 14. The back plate 1 is provided with the lifting cylinder 2 and the primary linear guide 3 along the Z-axis. The lifting platform 4 is provided on the primary linear guide 3, and the lifting platform 4 is connected to the lifting cylinder 2 via the screw 5. The lifting platform 4 is equipped with a guide frame 6, a linear bearing 7 is installed on the guide frame 6, a guide rod 8 is passed through the linear bearing 7, a lower cantilever 9 is connected to the guide rod 8, a screw suction nozzle 10 is installed at the lower end of the lower cantilever 9, a side cantilever 11 is connected to the outside of the lower cantilever 9, a buffer 12 is provided on the back plate 1 to push the side cantilever 11 upward, a screw machine frame 13 is provided on the lifting platform 4, and a screw machine head 14 is provided on the screw machine frame 13.

[0019] A primary buffer spring 15 is threaded through the screw 5, and a secondary buffer spring 16 is threaded through the guide rod 8.

[0020] Furthermore, the lifting platform 4 is equipped with a secondary linear guide 17, the lower cantilever 9 is L-shaped and suspended on the secondary linear guide 17, and the screw suction nozzle 10 is coaxial with the screw machine head.

[0021] Furthermore, the guide frame 6 has a T-shaped structure and forms a protrusion 18. The linear bearing 7 passes through the protrusion 18 along the z-axis. The protrusion 18 is provided with a left set screw 19, a right set screw 20 and a central set screw 21 in the horizontal direction. The left set screw 19, the right set screw 20 and the central set screw 21 are used to adjust the height of the linear bearing 7 on the guide frame 6 and adjust the deformation length of the secondary buffer spring 16.

[0022] Furthermore, the upper end of the lifting platform 4 is provided with a U-shaped notch 22, and the screw 5 is placed inside the notch 22. The lifting platform 4 is provided with several stroke adjustment holes 23 on both sides of the notch 22. A transition block 24 is installed on any one of the stroke adjustment holes 23. The transition block 24 is perforated, and the screw 5 passes through the perforation. A stroke adjustment nut 26 and a spring washer 27 are provided on the screw 5. The first-stage buffer spring 15 is disposed between the spring washer 27 and the transition block 24.

[0023] Furthermore, the lower end of the lifting platform 4 is provided with several levels of machine head height adjustment holes 28 on both sides of the secondary linear guide 17, and the screw frame 13 is installed on any level of the machine head height adjustment hole 28.

[0024] The head height adjustment hole 28 allows adjustment of the height of the screwdriver head 14, thus accommodating bits of different lengths and sizes. The lower cantilever 9 floats via a spring, accommodating screws of different sizes. The adapter block 24 is adjustable in multiple stages via the stroke adjustment hole 23 to adapt to the fastening needs of working surfaces at different heights, offering strong compatibility.

[0025] This product's pneumatic suction screw fastening device effectively solves the above problems through multi-stage buffering, modular adjustment, and floating nozzle design, significantly improving work efficiency and equipment adaptability.

[0026] This air-suction screw fastener combines multi-stage buffering and modular adjustment features to achieve efficient and stable screw fastening. Its main feature is multi-stage adjustment: through the stroke adjustment hole 23, the head height adjustment hole 28 and the set screw structure, it can flexibly adapt to different screw specifications and working scenarios.

[0027] This device requires selecting the appropriate head height adjustment hole 28 according to the bit length to install the screw frame 13; selecting the stroke adjustment hole 23 to fix the adapter block 24 according to the working surface height, and adjusting the nut to limit the lifting stroke; the height of the linear bearing 7 can also be adjusted by the left / right set screw 20 for spring fine adjustment.

[0028] After the screw suction nozzle 10 picks up the screw, the lifting cylinder 2 drives the platform to move down; the lower cantilever 9 floats along the secondary rail 17. After the screw is locked, the suction head is hung on the buffer 12 to reset.

[0029] This device has the following beneficial effects:

[0030] 1. Multi-level compatibility: Through stroke, height and spring deformation adjustment, it can adapt to screws of various specifications, bits of various lengths and complex working surfaces with inconsistent heights;

[0031] 2. Impact resistance optimization: The primary buffer spring 15 reduces cylinder impact, and the secondary buffer spring 16 flexibly adapts to the working surface height while reducing vibration at the locking end;

[0032] 3. High-efficiency adjustment: Modular hole design enables quick changeover, reducing adjustment time by 60%;

[0033] 4. Compact structure: It integrates lifting, guiding and buffering functions, and its volume is reduced by 30% compared with traditional equipment, making it suitable for operation in confined spaces.

[0034] In summary, this utility model provides a high-efficiency pneumatic suction screw fastening device. Through the effective combination of multi-stage buffering and modular adjustment, it significantly improves the compatibility of the equipment with screw specifications, bit sizes and working surface heights, while reducing fastening impact and improving work efficiency and positioning accuracy.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-efficiency pneumatic suction-type screw fastening device, characterized in that, The device includes a back plate, a lifting cylinder, a primary linear guide, a lifting platform, a screw, a guide frame, a linear bearing, a guide rod, a lower cantilever, a screw suction nozzle, a side cantilever, a buffer, a screw machine frame, and a screw head. The back plate is equipped with a lifting cylinder and a primary linear guide along the Z-axis. A lifting platform is mounted on the primary linear guide. The lifting platform is connected to the lifting cylinder via a screw. A guide frame is mounted on the lifting platform, and a linear bearing is mounted on the guide frame. A guide rod passes through the linear bearing, and a lower cantilever is connected to the guide rod. A screw suction nozzle is installed at the lower end of the lower cantilever, and a side cantilever is connected to the outside of the lower cantilever. A buffer that pushes upwards against the side cantilever is mounted on the back plate. A screw machine frame is mounted on the lifting platform, and a screw head is mounted on the screw machine frame.

2. The high-efficiency pneumatic suction type screw fastening device according to claim 1, characterized in that, A primary buffer spring is threaded through the screw, and a secondary buffer spring is threaded through the guide rod.

3. The high-efficiency pneumatic suction type screw fastening device according to claim 1, characterized in that, The lifting platform is equipped with a secondary linear guide, the lower cantilever is L-shaped and suspended on the secondary linear guide, and the screw suction nozzle is coaxial with the screw machine head.

4. The high-efficiency pneumatic suction type screw fastening device according to claim 2, characterized in that, The guide frame has a T-shaped structure and forms a protrusion. The linear bearing passes through the protrusion along the z-axis. The protrusion is provided with a left-side set screw, a right-side set screw, and a center set screw in the horizontal direction. The left-side set screw, the right-side set screw, and the center set screw are used to adjust the height of the linear bearing on the guide frame and adjust the deformation length of the secondary buffer spring.

5. The high-efficiency pneumatic suction type screw fastening device according to claim 2, characterized in that, The upper end of the lifting platform has a U-shaped notch, and the screw is placed inside the notch. The lifting platform has several stroke adjustment holes on both sides of the notch. A transition block is installed on any one of the stroke adjustment holes. The transition block has a hole, and the screw passes through the hole. A stroke adjustment nut and a spring washer are provided on the screw. The first-stage buffer spring is located between the spring washer and the transition block.

6. The high-efficiency pneumatic suction type screw fastening device according to claim 3, characterized in that, The lower end of the lifting platform is provided with several levels of machine head height adjustment holes on both sides of the secondary linear rail, and the screw frame is installed on any level of the machine head height adjustment hole.