Locking unit of screw machine

By designing the screw fastening unit, the screw is fixed using an adsorption tube and an air pump structure, combined with a motor-driven bevel gear and threaded tube. This solves the problem of incorrect screw positioning, enabling precise screw insertion and tightening, and improving the efficiency of the device.

CN223617144UActive Publication Date: 2025-12-02SHENZHEN HONGZHAN AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202423211274.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-12-02
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

The existing screw fastening device of the screw machine is not effective in securing the screw, resulting in the screw being mispositioned and difficult to insert into the screw hole, which affects the efficiency of the device.

Method used

A screw tightening unit for a screw machine is designed, comprising a fixed housing, a reciprocating lead screw, a lead screw slider, an adsorption tube, and an air pump structure. The screw is fixed by the adsorption tube and kept vertical by airflow. Combined with a bevel gear driven by a motor and a threaded tube, the screw is tightened precisely.

Benefits of technology

It enables precise screw insertion and tightening, improves the efficiency and reliability of the device, and ensures accurate screw hole alignment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223617144U_ABST
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Abstract

The utility model discloses a screw machine locking unit which comprises a first fixing outer shell, a second fixing outer shell is fixedly installed at one end of the first fixing outer shell, a reciprocating lead screw is rotationally connected to the upper inner wall of the second fixing outer shell, and a lead screw sliding block is mechanically matched with the reciprocating lead screw. The screw rod sliding block is slidably connected with the inner wall of the second fixing shell, a fixing plate is fixedly connected to the side wall of the screw rod sliding block and extends to the outer side of the second fixing shell, an adsorption pipe is rotatably connected to the fixing plate, and a connecting plate is fixedly connected to the second fixing shell; and a fixed air pump is fixedly mounted at the top end of the connecting plate. The groove corresponding to the screw is formed in the bottom end of the adsorption pipe, the top end of the screw can be tightly attached to the inner wall of the groove, and therefore when the screw is screwed, the shape of the screw can be fixed, it is guaranteed that the screw does not incline, the screw can be accurately inserted into a screw hole, and normal use of the device is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of screw fastening technology, and in particular to a screw fastening unit for a screw machine. Background Technology

[0002] Most equipment requires screws for installation and fixation. However, some equipment has too many screw locations, making manual screw installation too time-consuming. Therefore, a screw fastening device is needed.

[0003] The existing screw fastening device is not effective in securing screws, which can easily lead to incorrect screw positioning and difficulty in inserting screws into the screw holes. This causes some trouble in the use of the device and is not conducive to its operation. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, such as insufficient screw fixing effect, which easily leads to incorrect screw position and difficulty in inserting screws into screw holes, causing certain troubles in the use of the device and hindering its use. Therefore, a screw fastening unit is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A screw fastening unit for a screw machine includes:

[0007] A first fixed outer casing is provided, and a second fixed outer casing is fixedly installed at one end of the first fixed outer casing. A reciprocating lead screw is rotatably connected to the upper inner wall of the second fixed outer casing. A lead screw slider is mechanically fitted on the reciprocating lead screw, and the lead screw slider is slidably connected to the inner wall of the second fixed outer casing. A fixed plate is fixedly connected to the side wall of the lead screw slider, and the fixed plate extends to the outside of the second fixed outer casing. An adsorption tube is rotatably connected to the fixed plate. A connecting plate is fixedly connected to the second fixed outer casing. A fixed air pump is fixedly installed at the top of the connecting plate. A fixed tube is fixedly connected to the output end of the fixed air pump. The position of the fixed tube corresponds to that of the adsorption tube. A groove is opened at the bottom end of the adsorption tube. An adjustment structure is installed inside the first fixed outer casing.

[0008] Preferably, the adjustment structure includes a motor fixedly connected to the inner wall of the fixed housing, a rotating rod fixedly connected to the output end of the motor, the rotating rod extending into the inner side of the fixed housing, a bevel gear one fixedly connected to one end of the rotating rod located on the inner wall of the fixed housing, and a bevel gear two matching the bevel gear one fixedly sleeved on the reciprocating screw, and the bevel gear two meshing with the bevel gear one.

[0009] Preferably, a controller corresponding to the motor is fixedly installed on the fixed housing.

[0010] Preferably, a threaded tube is installed on the inner side of the fixed tube, the threaded tube extends to the outer side of the fixed tube, and the end of the threaded tube away from the fixed tube is fixedly connected to the adsorption tube, and the fixed tube and the threaded tube are connected by a thread.

[0011] Preferably, an air inlet channel is fixedly installed at the top of the fixed air pump, and a dustproof net is fixedly installed on the inner side of the air inlet channel.

[0012] Preferably, a plurality of fixing bolts are installed on the first and second fixed housings, and the first and second fixed housings are fixedly connected by the fixing bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the bottom end of the adsorption tube is provided with a groove corresponding to the screw, which can make the top of the screw fit tightly against the inner wall of the groove. Therefore, when screwing in, the shape of the screw can be fixed to ensure that the screw will not be crooked, so that the screw can be accurately inserted into the screw hole, which is conducive to the normal use of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a screw fastening unit proposed in this utility model;

[0015] Figure 2 This is a side-view three-dimensional structural diagram of a screw fastening unit proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a screw fastening unit proposed in this utility model.

[0017] In the diagram: 1 Fixed outer casing one, 2 Fixed outer casing two, 3 Lead screw slider, 4 Fixed plate, 5 Connecting plate, 6 Fixed air pump, 7 Fixed pipe, 8 Threaded pipe, 9 Adsorption pipe, 10 Reciprocating lead screw, 11 Motor, 12 Rotating rod, 13 Bevel gear one, 14 Bevel gear two. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-3 A screw fastening unit for a screw machine, comprising:

[0020] A fixed outer shell 1 is fixedly installed at one end of a fixed outer shell 2. A reciprocating screw 10 is rotatably connected to the upper inner wall of the fixed outer shell 2. A screw slider 3 is mechanically fitted on the reciprocating screw 10 and is slidably connected to the inner wall of the fixed outer shell 2. A fixed plate 4 is fixedly connected to the side wall of the screw slider 3 and extends to the outside of the fixed outer shell 2. An adsorption tube 9 is rotatably connected to the fixed plate 4. A connecting plate 5 is fixedly connected to the fixed outer shell 2. A fixed air pump 6 is fixedly installed at the top of the connecting plate 5. A fixed tube 7 is fixedly connected to the output end of the fixed air pump 6. The position of the fixed tube 7 corresponds to that of the adsorption tube 9. The bottom end of the adsorption tube 9 has a groove corresponding to the shape of the screw, so that the screw can be easily sucked into the groove. At the same time, due to the airflow, the top of the screw will be tightly attached to the inner wall of the groove, ensuring that the screw is in a vertical state, so as to tighten the screw. An adjustment structure is installed inside the fixed outer shell 1.

[0021] The fixed air pump 6 draws in air, causing the suction tube 9 to attract the screw, so that the screw can be tightened. When the reciprocating screw 10 rotates, the screw slider 3 cannot rotate. Therefore, the screw slider 3 will move up and down with the rotation of the reciprocating screw 10. When the screw slider 3 moves down, the connecting plate 5 moves with it, which drives the suction tube 9 and the screw to move together, tightening the screw.

[0022] The adjustment structure includes a motor 11 fixedly connected to the inner wall of the fixed housing 1. A rotating rod 12 is fixedly connected to the output end of the motor 11. The rotating rod 12 extends into the inner side of the fixed housing 2. A bevel gear 13 is fixedly connected to one end of the rotating rod 12 located on the inner wall of the fixed housing 2. A bevel gear 14 matching the bevel gear 13 is fixedly sleeved on the reciprocating screw 10, and the bevel gear 14 meshes with the bevel gear 13. After the motor 11 starts, its output end drives the rotating rod 12 to rotate, thereby causing the bevel gear 13 fixedly connected to the rotating rod 12 to rotate as well, and causing the bevel gear 14 meshing with the bevel gear 13 to rotate as well, driving the reciprocating screw 10 to rotate. A controller corresponding to the motor 11 is fixedly installed on the fixed housing 1. The controller and motor 11 are existing equipment. The controller can control the starting and stopping of the motor 11.

[0023] A threaded tube 8 is installed on the inner side of the fixed tube 7. The threaded tube 8 extends to the outer side of the fixed tube 7, and the end of the threaded tube 8 away from the fixed tube 7 is fixedly connected to the adsorption tube 9. The fixed tube 7 and the threaded tube 8 are connected by threads. When the connecting plate 5 moves, the threaded tube 8 will also move. Since the fixed tube 7 is fixed, the threaded tube 8 will rotate when it moves up and down under the action of the threads, thereby tightening the screw.

[0024] An air inlet channel is fixedly installed on the top of the fixed air pump 6, and a dustproof screen is fixedly installed on the inner side of the air inlet channel to prevent dust from entering the fixed air pump 6; multiple fixing bolts are installed on the fixed outer shell 1 and the fixed outer shell 2, and the fixed outer shell 1 and the fixed outer shell 2 are fixedly connected by fixing bolts, so as to facilitate the removal of the fixed outer shell 1 and the fixed outer shell 2 for replacement and maintenance of the internal components.

[0025] In this invention, when the device is in use, the screw is positioned at the adsorption tube 9, and the fixed air pump 6 draws air in, causing the adsorption tube 9 to adsorb the screw for tightening. Simultaneously, the motor 11 is started. After the motor 11 starts, its output end drives the rotating rod 12 to rotate, thereby causing the bevel gear 13, which is fixedly connected to the rotating rod 12, to rotate as well. The bevel gear 14, which meshes with the bevel gear 13, also rotates, driving the reciprocating screw 10 to rotate. When the reciprocating screw 10 rotates, the screw slider 3 cannot rotate, so the screw slider 3 will move up and down reciprocally with the rotation of the reciprocating screw 10. When the screw slider 3 moves downward, the connecting plate 5 moves accordingly, causing the adsorption tube 9 and the screw to move together. When the connecting plate 5 moves, the threaded tube 8 also moves accordingly. Since the fixed tube 7 is stationary, the threaded tube 8 will rotate as it moves up and down under the action of the threads, thereby tightening the screw.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A screw fastening unit for a screw machine, characterized in that, include: A fixed outer shell (1) is fixedly installed at one end of the fixed outer shell (1), and a reciprocating screw (10) is rotatably connected to the upper inner wall of the fixed outer shell (2). A screw slider (3) is mechanically fitted on the reciprocating screw (10), and the screw slider (3) is slidably connected to the inner wall of the fixed outer shell (2). A fixed plate (4) is fixedly connected to the side wall of the screw slider (3). The fixed plate (4) extends to the outside of the fixed outer shell (2). An adsorption tube (9) is rotatably connected to the fixed plate (4). A connecting plate (5) is fixedly connected to the fixed outer shell (2). A fixed air pump (6) is fixedly installed at the top of the connecting plate (5). A fixed tube (7) is fixedly connected to the output end of the fixed air pump (6). The position of the fixed tube (7) corresponds to that of the adsorption tube (9). A groove is opened at the bottom end of the adsorption tube (9). An adjustment structure is installed inside the fixed outer shell (1).

2. The screw fastening unit according to claim 1, characterized in that, The adjustment structure includes a motor (11) fixedly connected to the inner wall of the fixed outer shell (1). The output end of the motor (11) is fixedly connected to a rotating rod (12). The rotating rod (12) extends into the inner side of the fixed outer shell (2). One end of the rotating rod (12) located on the inner wall of the fixed outer shell (2) is fixedly connected to a bevel gear (13). A bevel gear (14) matching the bevel gear (13) is fixedly sleeved on the reciprocating screw (10), and the bevel gear (14) meshes with the bevel gear (13).

3. The screw fastening unit according to claim 2, characterized in that, A controller corresponding to the motor (11) is fixedly installed on the fixed housing (1).

4. The screw fastening unit according to claim 1, characterized in that, A threaded tube (8) is installed on the inner side of the fixed tube (7). The threaded tube (8) extends to the outer side of the fixed tube (7), and the end of the threaded tube (8) away from the fixed tube (7) is fixedly connected to the adsorption tube (9). The fixed tube (7) and the threaded tube (8) are connected by a thread.

5. A screw fastening unit according to claim 1, characterized in that, The top of the fixed air pump (6) is fixedly equipped with an air inlet channel, and a dustproof net is fixedly installed on the inner side of the air inlet channel.

6. A screw fastening unit for a screw machine according to claim 1, characterized in that, Multiple fixing bolts are installed on the first fixing shell (1) and the second fixing shell (2), and the first fixing shell (1) and the second fixing shell (2) are fixedly connected by fixing bolts.