A pneumatic screw assembly nozzle device

Abstract

This utility model discloses a pneumatic screw assembly nozzle device, specifically relating to the field of screw installation technology. It includes a handle with a control switch on one side. A second connecting sleeve is threaded to the inner wall of one end of the handle, and a connecting shell is threaded to the outer wall of the second connecting sleeve. A first connecting sleeve is placed at one end of the second connecting sleeve, and a sleeve rod is movably fitted inside the first connecting sleeve. This device connects an air guide tube to an external air pump, generating suction to draw air in through a third air hole, then through a fourth air hole, then through the second air hole, and finally outwards through the first air hole. The screw is placed inside the first limiting sleeve, and the third air hole adheres the screw's nut portion inside the first limiting sleeve. The screw to be installed is held in place at the third air hole. Even if the screw touches external components during tightening, it is not easily tilted or fallen off, thus ensuring a secure connection between the screw and the nozzle during installation.

Description

Technical Field

[0001] This utility model relates to the field of screw installation technology, specifically to a pneumatic screw assembly nozzle device. Background Technology

[0002] As a core component of screw fastening machines, the type and specifications of the air-suction screw fastening nozzle must be selected based on the screw size and machine requirements. Search results show that common nozzle types include vacuum nozzles, air-blowing nozzles, and custom-made stainless steel models, compatible with screw sizes ranging from M2 to M8, such as "fully automatic screw fastening machine accessories, screwdriver bits, air-blowing nozzles, rivet chucks, and screw rods." Furthermore, some non-standard custom models can be manufactured with suction heads, nozzles, or electric screwdriver sockets according to specific needs, suitable for precision fastening scenarios.

[0003] Pneumatic screw assembly nozzles achieve precise screw delivery and fastening through vacuum adsorption or air blowing. The core process involves compressed air driving a cylinder piston, which is then converted into a rotating or adsorption motion of the nozzle via a transmission system. This, combined with vacuum negative pressure adsorption of the screw, ultimately completes the fastening process. For example, the "non-standard automatic screw fastening machine vacuum nozzle" utilizes the vacuum adsorption principle and is suitable for assembling tiny screws on precision circuit boards and other applications.

[0004] Existing air-suction screw assembly guns typically use the nozzle to directly suction the screw before installing it. However, during installation, because the screw is mounted on a precision circuit board or other object, it is easy for the screw to come into contact with other components on the circuit board, causing the screw to tilt directly against the nozzle. Insufficient suction force can cause the screw to fall off. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a pneumatic screw assembly nozzle device, 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:

[0007] This utility model provides a pneumatic screw assembly nozzle device, including a handle, a control switch on one side of the handle, a second connecting sleeve threaded to the inner wall of one end of the handle, a connecting shell threaded to the outer wall of the second connecting sleeve, a first connecting sleeve placed at one end of the second connecting sleeve, a sleeve rod movably sleeved inside the first connecting sleeve, a pneumatic suction rod movably sleeved inside the sleeve rod, a first connecting head threaded to the outer wall of one end of the connecting shell, a connecting ring movably sleeved to the inner wall of the first connecting head, a first limiting sleeve detachably installed at one end of the sleeve rod, a first air hole penetrating through the outer wall of one end of the first connecting head, an air nozzle sealed inside the first air hole, and an air guide tube fixed to one end of the air nozzle.

[0008] Furthermore, the air suction rod is hollow, with a third air hole at one end and a fourth air hole at the other end.

[0009] Furthermore, multiple fourth air holes are provided, and the multiple fourth air holes are arranged in a spiral equidistant pattern. A second air hole is opened at one end of the sleeve rod, and the second air hole, the fourth air hole and the first air hole are used in combination.

[0010] Furthermore, the vertical cross-section of the first connecting sleeve is U-shaped, the end of the sleeve rod connected to the first connecting sleeve is protruding, and a second limiting sleeve is fixed to one end of the second connecting sleeve, with the sleeve rod penetrating inside the second limiting sleeve.

[0011] Furthermore, an air-blocking rod is fixed in the middle of the connecting ring, with one end of the air-blocking rod located on the inner wall of the air suction rod.

[0012] Furthermore, a spring is provided on the inner wall of the first connector, one end of the spring is in contact with one side of the connecting ring, and the other end of the spring is in contact with the second limiting sleeve.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0014] 1. This application connects the air guide tube to an external air pump to generate suction to draw air in through the third air hole, then through the fourth air hole, then through the second air hole, and finally out through the first air hole. The screw is placed inside the first limiting sleeve, and the third air hole attracts the nut part of the screw inside the first limiting sleeve. The screw to be installed is attracted to the third air hole. When tightening the screw, even if the screw touches the external components, it is not easy to tilt or fall off, thereby ensuring that the screw and the nozzle remain firmly connected during the installation process.

[0015] 2. In this application, when the screw is installed by aligning it with the hole, the air suction rod is rotated to tighten it. When the screw enters the hole, the first limit sleeve touches the circuit board and compresses the spring to move into the first connector. The multiple fourth air holes and second air holes are provided so that when the sleeve moves, there is always a set of fourth air holes and second air holes that can overlap for ventilation, thereby achieving the effect of not affecting the normal installation of the screw. Attached Figure Description

[0016] 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.

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0020] The labels in the diagram represent:

[0021] 1. Handle; 2. Control switch; 3. Connecting shell; 4. First connector; 41. First air hole; 5. Sleeve rod; 51. Second air hole; 52. First limiting sleeve; 6. Air suction rod; 61. Third air hole; 62. Fourth air hole; 7. Connecting ring; 8. Air plug rod; 9. First connecting sleeve; 10. Second connecting sleeve; 101. Second limiting sleeve; 11. Air nozzle; 12. Air guide tube; 13. Spring. Detailed Implementation

[0022] 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.

[0023] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0024] This application discloses a pneumatic screw assembly nozzle device, including a handle 1, a control switch 2 on one side of the handle 1, a second connecting sleeve 10 threadedly connected to the inner wall of one end of the handle 1, a connecting shell 3 threadedly connected to the outer wall of the second connecting sleeve 10, a first connecting sleeve 9 placed at one end of the second connecting sleeve 10, a sleeve rod 5 movably sleeved inside the first connecting sleeve 9, a pneumatic suction rod 6 movably sleeved inside the sleeve rod 5, a first connecting head 4 threadedly connected to the outer wall of one end of the connecting shell 3, a connecting ring 7 movably sleeved inside the inner wall of the first connecting head 4, a first limiting sleeve 52 detachably installed at one end of the sleeve rod 5, a first air hole 41 penetrating through the outer wall of one end of the first connecting head 4, an air nozzle 11 sealed inside the first air hole 41, and an air guide tube 12 fixed at one end of the air nozzle 11.

[0025] Reference Appendix Figure 1 and 2The air suction rod 6 is hollow, with a third air hole 61 at one end and a fourth air hole 62 at the other end. Multiple fourth air holes 62 are arranged in a spiral equidistant pattern. A second air hole 51 is provided at one end of the sleeve rod 5. The second air hole 51, the fourth air hole 62 and the first air hole 41 are used in combination. The end of the air suction rod 6 with the third air hole 61 has a cross groove, which is connected to an external air pump through the air guide tube 12 to generate suction. Air is drawn in from the third air hole 61, passes through the fourth air hole 62, then through the second air hole 51, and finally is drawn out from the first air hole 41. The screw to be installed is attracted to the third air hole 61. The multiple fourth air holes 62 and second air holes 51 ensure that a set of fourth air holes 62 and second air holes 51 can always overlap for ventilation when the sleeve rod 5 moves.

[0026] Reference Appendix Figure 2 and 3 The vertical cross-section of the first connecting sleeve 9 is U-shaped. The end of the sleeve rod 5 connected to the first connecting sleeve 9 is protruding. One end of the second connecting sleeve 10 is fixed with a second limiting sleeve 101. The sleeve rod 5 passes through the inside of the second limiting sleeve 101. The protruding end of the sleeve rod 5 is connected to the first connecting sleeve 9. After the second connecting sleeve 10 is connected to the connecting shell 3, the first connecting sleeve 9 and the sleeve rod 5 can be pressed at the first connecting head 4.

[0027] Referring to the attached diagram, a blocking rod 8 is fixed to the middle of the connecting ring 7. One end of the blocking rod 8 is located on the inner wall of the suction rod 6. A spring 13 is installed on the inner wall of the first connector 4. One end of the spring 13 is in contact with one side of the connecting ring 7, and the other end of the spring 13 is in contact with the second limiting sleeve 101. The blocking rod 8 blocks one end of the suction rod 6 to prevent some air from leaking out from one end of the suction rod 6 during suction, thus affecting the suction force of the third air hole 61. When installing the screw, the screw is placed inside the first limiting sleeve 52. At this time, the spring 13 releases its elastic potential energy. Keep the first limiting sleeve 52 outside the air suction rod 6. The third air hole 61 will attract the nut part of the screw to the inside of the first limiting sleeve 52. When tightening the screw, the screw will not easily tilt and fall off when it touches the external component. When installing the screw, rotate the air suction rod 6 to tighten it. When the screw enters the hole, the first limiting sleeve 52 touches the circuit board and compresses the spring 13 to move into the first connector 4. After installation, pick up the device. The spring 13 releases its elastic potential energy to reset the sleeve rod 5 and the first limiting sleeve 52.

[0028] The workflow of this utility model is as follows:

[0029] First, when installing the screw, the air duct 12 is connected to an external air pump, generating suction. Air is drawn in through the third air hole 61, then through the fourth air hole 62, then through the second air hole 51, and finally outward through the first air hole 41, placing the screw inside the first limiting sleeve 52. At this time, the spring 13 releases its elastic potential energy, keeping the first limiting sleeve 52 outside the suction rod 6. The third air hole 61 attracts the screw nut part inside the first limiting sleeve 52, holding the screw to be installed at the third air hole 61. When tightening the screw, it will not easily touch external components. If the device falls due to tilting, when aligning the screw with the hole for installation, rotate the air suction rod 6 to tighten it. When the screw enters the hole, the first limiting sleeve 52 touches the circuit board and compresses the spring 13, moving it into the first connector 4. The multiple fourth air holes 62 and second air holes 51 ensure that a set of fourth air holes 62 and second air holes 51 can always overlap for ventilation when the sleeve rod 5 moves. After installation, pick up the device, and the spring 13 releases its elastic potential energy, causing the sleeve rod 5 and the first limiting sleeve 52 to return to their original positions. Repeat the above operation to install the 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. A pneumatic suction screw assembly nozzle device, characterized in that: Includes a handle (1), a control switch (2) is provided on one side of the handle (1), a second connecting sleeve (10) is threaded to the inner wall of one end of the handle (1), a connecting shell (3) is threaded to the outer wall of the second connecting sleeve (10), a first connecting sleeve (9) is placed at one end of the second connecting sleeve (10), a sleeve rod (5) is movably sleeved inside the first connecting sleeve (9), an air suction rod (6) is movably sleeved inside the sleeve rod (5), a first connector (4) is threaded to the outer wall of one end of the connecting shell (3), a connecting ring (7) is movably sleeved to the inner wall of the first connector (4), a first limiting sleeve (52) is detachably installed at one end of the sleeve rod (5), a first air hole (41) is opened through the outer wall of one end of the first connector (4), an air nozzle (11) is sealed inside the first air hole (41), and an air guide tube (12) is fixed at one end of the air nozzle (11).

2. The pneumatic suction screw assembly nozzle device according to claim 1, characterized in that: The air suction rod (6) is hollow, with a third air hole (61) at one end and a fourth air hole (62) at the other end.

3. The pneumatic suction screw assembly nozzle device according to claim 2, characterized in that: The fourth air hole (62) is provided in multiple ways, and the multiple fourth air holes (62) are arranged in a spiral equidistant manner. A second air hole (51) is opened at one end of the sleeve rod (5). The second air hole (51), the fourth air hole (62) and the first air hole (41) are used in combination.

4. The pneumatic suction screw assembly nozzle device according to claim 1, characterized in that: The vertical cross section of the first connecting sleeve (9) is U-shaped. The end of the sleeve rod (5) connected to the first connecting sleeve (9) is protruding. The second connecting sleeve (10) is fixed with a second limiting sleeve (101) at one end. The sleeve rod (5) passes through the interior of the second limiting sleeve (101).

5. The pneumatic suction screw assembly nozzle device according to claim 1, characterized in that: An air-blocking rod (8) is fixed in the middle of the connecting ring (7), and one end of the air-blocking rod (8) is located on the inner wall of the air suction rod (6).

6. The pneumatic suction screw assembly nozzle device according to claim 4, characterized in that: The inner wall of the first connector (4) is provided with a spring (13). One end of the spring (13) is in contact with one side of the connecting ring (7), and the other end of the spring (13) is in contact with the second limiting sleeve (101).

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