A collet screwing machine

CN122645000APending Publication Date: 2026-08-28曾凡树
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Patent Information

Application Number
CN202611038113.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-13
Publication Date
2026-08-28

AI Technical Summary

Technical Problem

[0002]在照明行业手电筒类产品,尾盖、头壳、颈部等部件螺纹旋紧以及制造行业各种含有螺栓螺纹的部件助力旋紧作业中,传统上多依赖于操作人员使用手动工具或通用电动设备进行螺纹旋紧,此类作业方式不仅效率低下,且旋紧质量高度依赖操作人员的经验和体力,易导致产品旋紧程度不一,出现松动或过紧损伤螺纹等现象

Benefits of technology

[0015] This invention uses a stepper motor to drive a pneumatic spindle clamp, which in turn rotates the product chuck. Combined with a clamp cylinder, it enables rapid clamping and releasing. Operated via an electric foot switch, it significantly improves production efficiency, reduces labor intensity and costs. The tightening machine body is divided into upper and lower layers by a partition, isolating electrical and mechanical components. It features a compact layout, simple structure, quick assembly, easy maintenance, low energy consumption, and suitability for small platforms. By changing the product chuck, it can adapt to various product types. It has forward and reverse rotation and rotation number adjustment functions, and the program is simple to set. Adjusting the rotation speed allows for precise control of the tightening force, effectively improving product processing quality and consistency. For some products, it can optimize the process and reduce the use of strong thread-locking adhesive.

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Abstract

The application belongs to the technical field of mechanical automation equipment, and is especially a chuck tightening machine, which comprises a tightening machine body and an electric foot switch. The inside of the tightening machine body is provided with a pneumatic main shaft clamp seat and a stepping motor located at one side of the pneumatic main shaft clamp seat. The product chuck is driven to rotate through the stepping motor, and quick clamping is realized in combination with the clamp seat cylinder. The operation is matched with the electric foot switch, so that the production operation efficiency is significantly improved, the labor intensity and labor cost are reduced, the tightening machine body is divided into two layers through a partition plate, the electrical and mechanical parts are isolated, the layout is compact, the structure is simple, the assembly is fast, the maintenance is convenient, the energy consumption is small, and the machine is suitable for small-area platforms. The machine is adapted to switching of multiple types of products by replacing the product chuck, has functions of forward and reverse rotation and number of turns adjustment, has simple program setting, can accurately control the product tightening force through speed adjustment, effectively improves the product processing quality and consistency, and can optimize the process of some products and reduce the use of strong thread glue.
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Description

Technical Field

[0001] This invention belongs to the field of mechanical automation equipment technology, and specifically relates to a chuck tightening machine. Background Technology

[0002] In the lighting industry, for flashlight products, the tightening of threads on components such as tail caps, head shells, and necks, as well as the tightening of various bolt-threaded components in the manufacturing industry, traditionally, it has relied on operators using manual tools or general-purpose electric equipment to tighten the threads. This method of operation is not only inefficient, but the tightening quality is also highly dependent on the operator's experience and physical strength, which can easily lead to inconsistent tightening of the product, resulting in loosening or over-tightening that damages the threads.

[0003] Although some automated equipment exists, it is often complex in structure, expensive or poorly adaptable, making it difficult to deploy and apply quickly in small and medium-sized production lines, and thus unable to meet the demands of modern production that require high efficiency, high consistency and low cost.

[0004] Therefore, this application proposes a chuck tightening machine to solve the above problems. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a chuck tightening machine with advantages of high efficiency, high consistency, and low cost.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a chuck tightening machine, comprising a tightening machine body and an electric foot switch, wherein a pneumatic spindle clamp and a stepper motor located on one side of the pneumatic spindle clamp are provided inside the tightening machine body, a product chuck is movably disposed inside the pneumatic spindle clamp, one end of the product chuck extends to one side of the tightening machine body, and the electric foot switch is electrically connected to the tightening machine body via a wire.

[0007] As a preferred embodiment of the chuck tightening machine of the present invention, the output end of the stepper motor is driven by a belt, and the other side of the belt is driven by a pneumatic spindle clamp.

[0008] As a preferred embodiment of the chuck tightening machine of the present invention, a partition is fixedly provided in the inner cavity of the tightening machine body, the partition dividing the inner cavity of the tightening machine body into upper and lower layers, and a clamp fixing plate is fixedly installed at the bottom of the pneumatic spindle clamp, the clamp fixing plate being fixedly connected to the bottom of the inner wall of the tightening machine body.

[0009] As a preferred embodiment of the clamp tightening machine of the present invention, a motor fixing plate is fixedly installed on the top of the clamp fixing plate, and the stepper motor is fixedly installed on one side of the outer wall of the motor fixing plate.

[0010] As a preferred embodiment of the clamp tightening machine of the present invention, a clamp cylinder is also installed on the clamp fixing plate, and the product clamp is installed on the clamp cylinder.

[0011] As a preferred embodiment of the clamp tightening machine of the present invention, the top of the partition is equipped with an output power supply, a motor driver and a controller, and the output power supply is electrically connected to the stepper motor, the clamp cylinder, the motor driver and the controller respectively.

[0012] As a preferred embodiment of the chuck tightening machine of the present invention, the controller extends to the outside of the tightening machine body on one side and is provided with a control panel.

[0013] As a preferred embodiment of the chuck tightening machine of the present invention, an air source processor is provided on the outer side of the tightening machine body, and an electromagnetic valve is also provided inside the tightening machine body. Both the electromagnetic valve and the air source processor are electrically connected to the output power supply, and the electromagnetic valve is electrically connected to an electric foot switch.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention uses a stepper motor to drive a pneumatic spindle clamp, which in turn rotates the product chuck. Combined with a clamp cylinder, it enables rapid clamping and releasing. Operated via an electric foot switch, it significantly improves production efficiency, reduces labor intensity and costs. The tightening machine body is divided into upper and lower layers by a partition, isolating electrical and mechanical components. It features a compact layout, simple structure, quick assembly, easy maintenance, low energy consumption, and suitability for small platforms. By changing the product chuck, it can adapt to various product types. It has forward and reverse rotation and rotation number adjustment functions, and the program is simple to set. Adjusting the rotation speed allows for precise control of the tightening force, effectively improving product processing quality and consistency. For some products, it can optimize the process and reduce the use of strong thread-locking adhesive. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the external structure of the present invention from one angle;

[0018] Figure 2 This is a schematic diagram of the external structure of the present invention from another angle;

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention from one angle;

[0020] Figure 4 This is a schematic diagram of the internal structure of the present invention from another angle;

[0021] Figure 5For the present invention Figure 4 A schematic diagram of a local structure in the image;

[0022] Figure 6 This is a schematic diagram of the structure of the partition plate of the present invention.

[0023] In the diagram: 1. Tightening machine body; 11. Pneumatic spindle clamp; 12. Stepper motor; 121. Belt; 13. Product chuck; 14. Clamp fixing plate; 141. Motor fixing plate; 142. Clamp cylinder; 15. Output power supply; 16. Motor driver; 17. Controller; 171. Control panel; 18. Air source processor; 19. Solenoid valve; 110. Partition plate; 2. Electric foot switch. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1-6 As shown: A chuck tightening machine includes a tightening machine body 1 and an electric foot switch 2. The tightening machine body 1 is provided with a pneumatic spindle clamp 11 and a stepper motor 12 located on one side of the pneumatic spindle clamp 11. A product chuck 13 is movably disposed inside the pneumatic spindle clamp 11. One end of the product chuck 13 extends to one side of the tightening machine body 1. The electric foot switch 2 is electrically connected to the tightening machine body 1 through a wire.

[0026] When using it, first select the appropriate product chuck 13 according to the product being processed, then install the product chuck 13 on the main body 1 of the tightening machine. In subsequent operations, connect the product with the product chuck 13 and step on the electric foot switch 2. The electric foot switch 2 drives the stepper motor 12 to drive the pneumatic spindle clamp 11 so that the product chuck 13 tightens the product.

[0027] In an optional embodiment, the output end of the stepper motor 12 is driven by a belt 121, and the other side of the belt 121 is driven by a pneumatic spindle holder 11.

[0028] In this embodiment, the stepper motor 12 serves as the power source. When the stepper motor 12 starts, it drives the pneumatic spindle clamp 11 through the belt 121, thereby driving the product clamp 13 to tighten the product.

[0029] In an optional embodiment, a partition 110 is fixed inside the body 1 of the tightening machine, which divides the inside of the body 1 of the tightening machine into upper and lower layers. A clamping plate 14 is fixedly installed at the bottom of the pneumatic spindle clamp 11, and the clamping plate 14 is fixedly connected to the bottom of the inner wall of the body 1 of the tightening machine.

[0030] In this embodiment: the internal space of the main body 1 of the tightening machine is divided into upper and lower layers by the partition plate 110 to achieve electrical and mechanical isolation; the pneumatic spindle clamp 11 is fixedly installed to the bottom of the inner wall of the main body 1 of the tightening machine by the clamp fixing plate 14.

[0031] In an optional embodiment, a motor mounting plate 141 is fixedly mounted on the top of the clamping plate 14, and a stepper motor 12 is fixedly mounted on one side of the outer wall of the motor mounting plate 141.

[0032] In this embodiment, the stepper motor 12 is provided with an installation position by the motor fixing plate 141, so that the stepper motor 12 can be stably installed inside the tightening machine body 1, ensuring its stable performance during operation.

[0033] In an optional embodiment, a clamping cylinder 142 is also mounted on the clamping plate 14, and the product clamp 13 is mounted on the clamping cylinder 142.

[0034] In this embodiment, the clamping cylinder 142 is installed on the clamping fixing plate 14. By extending and retracting the clamping cylinder 142, the product clamp 13 is driven to tighten and loosen, thereby achieving the technical effect of clamping and releasing the product.

[0035] In an optional embodiment, an output power supply 15, a motor driver 16, and a controller 17 are mounted on the top of the partition 110. The output power supply 15 is electrically connected to the stepper motor 12, the clamp cylinder 142, the motor driver 16, and the controller 17, respectively.

[0036] In this embodiment: the output power supply 15 provides power to the main body 1 of the overall tightening machine, the motor driver 16 is used to control the driving of the stepper motor 12, and the controller 17 is used to control the operation of the main body 1 of the overall tightening machine.

[0037] In an alternative embodiment, the controller 17 extends to the outside of the tightening machine body 1 and is provided with a control panel 171.

[0038] In this embodiment, the control panel 171 is located on the outside of the main body 1 of the tightening machine, which facilitates the staff to encode and operate it.

[0039] In an optional embodiment, an air source processor 18 is provided on the outside of the tightening machine body 1, and a solenoid valve 19 is also provided inside the tightening machine body 1. Both the solenoid valve 19 and the air source processor 18 are electrically connected to the output power supply 15, and the solenoid valve 19 is electrically connected to the electric foot switch 2.

[0040] Working principle: First, select a suitable product chuck 13 and install it on the main body 1 of the tightening machine. Then, align the product with the product chuck 13 and press the electric foot switch 2. At this time, the solenoid valve 19 is activated, and the clamping cylinder 142 is extended, causing the product chuck 13 to tighten and clamp the product. Then, the motor driver 16 starts the stepper motor 12. The stepper motor 12 rotates to the set number of revolutions, and drives the product chuck 13 on the pneumatic spindle clamping seat 11 to rotate through the belt 121, tightening the product. Then, release the electric foot switch 2, the solenoid valve 19 closes, the clamping cylinder 142 retracts, and the product chuck 13 releases the product. At this time, the operator can directly remove the product and repeat the above operation to tighten other products.

[0041] Some products have a small head shell design, making it difficult to hold the product with both hands, so the applicable equipment is different. Products with a thickness of 1mm or more can be tightened using the equipment of this application. By changing the product chuck 13, it can be adapted to different types of products in different industries.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chuck tightening machine, characterized in that: The machine includes a tightening machine body (1) and an electric foot switch (2). The tightening machine body (1) is equipped with a pneumatic spindle clamp (11) and a stepper motor (12) located on one side of the pneumatic spindle clamp (11). A product chuck (13) is movably arranged inside the pneumatic spindle clamp (11). One end of the product chuck (13) extends to one side of the tightening machine body (1). The electric foot switch (2) is electrically connected to the tightening machine body (1) through a wire.

2. The chuck tightening machine according to claim 1, characterized in that: The output end of the stepper motor (12) is connected to a belt (121), and the other side of the belt (121) is connected to the pneumatic spindle holder (11).

3. The chuck tightening machine according to claim 1, characterized in that: The inner cavity of the main body (1) of the tightening machine is fixed with a partition (110), which divides the interior of the main body (1) of the tightening machine into upper and lower layers. The bottom of the pneumatic spindle clamp (11) is fixedly installed with a clamp fixing plate (14), which is fixedly connected to the bottom of the inner wall of the main body (1) of the tightening machine.

4. A chuck tightening machine according to claim 3, characterized in that: The top of the clamp fixing plate (14) is fixedly installed with a motor fixing plate (141), and the stepper motor (12) is fixedly installed on one side of the outer wall of the motor fixing plate (141).

5. A chuck tightening machine according to claim 3, characterized in that: A clamping cylinder (142) is also installed on the clamping fixing plate (14), and the product clamp (13) is installed on the clamping cylinder (142).

6. A chuck tightening machine according to claim 3, characterized in that: The top of the partition (110) is equipped with an output power supply (15), a motor driver (16) and a controller (17), and the output power supply (15) is electrically connected to the stepper motor (12), the clamp cylinder (142), the motor driver (16) and the controller (17) respectively.

7. A chuck tightening machine according to claim 6, characterized in that: The controller (17) extends to the outside of the main body (1) of the tightening machine and is equipped with a control panel (171).

8. A chuck tightening machine according to claim 1, characterized in that: An air source processor (18) is provided on the outside of the main body (1) of the tightening machine, and an electromagnetic valve (19) is also provided inside the main body (1). The electromagnetic valve (19) and the air source processor (18) are both electrically connected to the output power supply (15), and the electromagnetic valve (19) is electrically connected to the electric foot switch (2).