Pneumatic tong butt module

Abstract

This disclosure relates to the field of machine tool accessories technology. One embodiment of this disclosure provides a pneumatic clamp docking module, which includes: a drive housing, a fixing clamp provided on the side wall of the drive housing, a pneumatic clamping assembly disposed inside the drive housing, and a drive telescopic assembly disposed inside the drive housing; the pneumatic clamping assembly includes a drive cavity, which is opened inside the drive housing, and a linkage frame is disposed inside the drive cavity, which is also disposed inside the drive housing. The linkage frame has a drive notch on its side wall, and a drive shaft is disposed inside the drive notch. A reinforcing frame is disposed inside the drive cavity, and the reinforcing frame is movably connected to the drive shaft. This technical solution solves the technical problems of existing hydraulic clamps, which, although capable of automated clamping, have complex structures and large volumes, resulting in poor adaptability in small and medium-sized machine tools or space-constrained processing environments. Furthermore, hydraulic systems pose a risk of oil leakage, easily contaminating the processing environment and workpiece.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of machine tool accessories technology, and more specifically, to a pneumatic clamp docking module. Background Technology

[0002] Manual clamping relies on manual operation to clamp workpieces, which is not only labor-intensive and inefficient, but also the clamping force is entirely controlled by the operator's experience. Uneven force or positioning deviation can easily cause displacement and vibration of the workpiece during processing, which directly affects the dimensional accuracy and surface quality of milling, turning and other processes. In mass production scenarios, the poor consistency of manual clamping can also cause fluctuations in workpiece processing quality and increase the defect rate.

[0003] While hydraulic clamps can achieve automated clamping, their complex structure and large size make them poorly adaptable to small and medium-sized machine tools or processing environments with limited space. In addition, hydraulic systems pose a risk of oil leakage, which can easily contaminate the processing environment and workpieces (especially affecting precision parts). Furthermore, they have high maintenance costs, requiring regular replacement of hydraulic oil and cleaning of pipelines, which increases the burden of equipment management. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a pneumatic clamp docking module, which solves the technical problems of existing hydraulic clamps, which, although they can achieve automated clamping, have complex structures and large volumes, poor adaptability in small and medium-sized machine tools or processing environments with limited space, and the risk of oil leakage in hydraulic systems, which can easily contaminate the processing environment and workpieces.

[0005] According to one aspect, at least one embodiment of this disclosure provides a pneumatic clamp docking module, comprising: A drive housing, wherein a fixing clip is provided on the side wall of the drive housing; A pneumatic clamping assembly, wherein the pneumatic clamping assembly is disposed inside the drive housing; A pneumatic telescopic assembly, wherein the drive telescopic assembly is disposed within the drive housing; The pneumatic clamping assembly includes a drive cavity, which is located inside the drive housing. A linkage frame is disposed inside the drive cavity and inside the drive housing. A drive notch is provided on the side wall of the linkage frame, and a drive shaft is disposed inside the drive notch. A reinforcing frame is disposed inside the drive cavity, and the reinforcing frame is movably connected to the drive shaft.

[0006] As a further technical solution, the end of the linkage extends out of the drive cavity, and the linkage is fixedly connected to the fixing clamp.

[0007] As a further technical solution, the pneumatic telescopic assembly includes a drive column, which is disposed inside the drive housing. The drive column has a pneumatic cavity inside, a drive push rod inside the pneumatic cavity, and a pneumatic disc inside the drive cavity. The pneumatic disc is connected to the drive push rod. The side wall of the drive housing has an air inlet, and an air inlet pipe is disposed inside the air inlet. The air inlet pipe is connected to the pneumatic cavity.

[0008] As a further technical solution, a limiting ring is provided on the inner wall of the pneumatic cavity, and the limiting ring is in contact with the pneumatic disk.

[0009] As a further technical solution, a sealing ring gasket is provided on the inner wall of the pneumatic cavity, and the sealing ring gasket is in contact with the pneumatic disc.

[0010] As a further technical solution, the drive column and the drive push rod are respectively connected to the inner side wall of the linkage frame, and the air inlet pipe is connected to the machine tool air pump.

[0011] As a further technical solution, the inner wall of the fixing clamp is provided with a clamping anti-slip pad.

[0012] As a further technical solution, clamping clearance notches are provided on opposite sides of the drive housing, and the clamping clearance notches correspond to the positions of the fixing clamps.

[0013] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, a pneumatic telescopic component driven by compressed air has an extremely fast response speed. From starting the air pump to completing the clamping action, the time is very short, which can significantly shorten the workpiece clamping time during machine tool processing. Compared with traditional manual or partially hydraulic clamping methods, it significantly improves production efficiency. In batch production scenarios, it can effectively increase the processing output per unit time. By precisely controlling the output pressure of the air pump, the air pressure in the pneumatic cavity can be precisely adjusted, thereby achieving precise control of the clamping force. Whether it is a thin and fragile precision part or a hard and heavy workpiece, it can provide a suitable and stable clamping force according to its characteristics. During the processing, it can effectively avoid problems such as workpiece displacement, deformation or fall-off caused by improper clamping force, ensuring processing accuracy and improving product quality stability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is a cross-sectional view of the drive housing of this disclosure; Figure 3 This is a cross-sectional view of the drive column of this disclosure; In the diagram: 1. Drive housing; 2. Fixing clamp; 3. Pneumatic clamping assembly; 3-1. Drive cavity; 3-2. Linkage frame; 3-3. Drive notch; 3-4. Drive shaft; 3-5. Reinforcing frame; 3-6. Clamping anti-slip pad; 4. Pneumatic telescopic assembly; 4-1. Drive column; 4-2. Pneumatic cavity; 4-3. Drive push rod; 4-4. Pneumatic disc; 4-5. Air inlet; 4-6. Air inlet pipe; 4-7. Limiting ring; 5. Clamping clearance notch; 6. Sealing ring gasket. Detailed Implementation

[0016] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0017] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0019] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figures 1-3 As shown, it illustrates a pneumatic clamp docking module of this disclosure, comprising: The drive housing 1 has a fixing clip 2 on its side wall; Pneumatic clamping assembly 3 is disposed inside the drive housing 1; Pneumatic telescopic assembly 4, the drive telescopic assembly is set inside the drive housing 1; The pneumatic clamping assembly 3 includes a drive cavity 3-1, which is located inside the drive housing 1. A linkage frame 3-2 is installed inside the drive cavity 3-1. The linkage frame 3-2 is located inside the drive housing 1. A drive notch 3-3 is opened on the side wall of the linkage frame 3-2. A drive shaft 3-4 is installed inside the drive notch 3-3. A reinforcing frame 3-5 is installed inside the drive cavity 3-1. The reinforcing frame 3-5 is movably connected to the drive shaft 3-4.

[0023] The pneumatic telescopic assembly 4 includes a drive column 4-1, which is located inside the drive housing 1. The drive column 4-1 has a pneumatic cavity 4-2 inside, and a drive push rod 4-3 inside the pneumatic cavity 4-2. The drive cavity 4-1 has a pneumatic disc 4-4 inside, which is connected to the drive push rod 4-3. The side wall of the drive housing 1 has an air inlet 4-5, and an air inlet pipe 4-6 inside the air inlet 4-5 is connected to the pneumatic cavity 4-2.

[0024] In some examples, the side wall of the drive housing 1 is precisely machined with a portion for mounting the fixing clip 2, ensuring that the fixing clip 2 is securely connected to the drive housing 1 after installation and does not affect the normal operation of other components inside the drive housing 1. At the same time, clamping clearance notches 5 are machined on opposite sides of the drive housing 1, with positions strictly corresponding to the subsequently installed fixing clip 2, so as to provide sufficient space for the movement of the fixing clip 2 during clamping operations and prevent interference.

[0025] Install the drive shaft 3-4 into the drive notch 3-3 of the linkage frame 3-2, ensuring the fit accuracy between the drive shaft 3-4 and the drive notch 3-3. This can be achieved through appropriate interference fit or by adding bearings to reduce friction and wear during rotation, thus improving the smoothness of its movement. Fix the reinforcing frame 3-5 inside the drive cavity 3-1 at a preset position. The reinforcing frame 3-5 is movably connected to the drive shaft 3-4 via bearings or bushings. This ensures the rotational freedom of the drive shaft 3-4 while also providing support and reinforcement through the reinforcing frame 3-5, preventing bending or deformation under stress and ensuring the stability and reliability of the entire pneumatic clamping assembly 3. After installation, perform a rotation test on the drive shaft 3-4 to ensure it rotates freely without jamming.

[0026] Air inlet 4-5 is machined on the side wall of drive housing 1. The size and position of air inlet 4-5 should be rationally designed according to the specifications of air inlet pipe 4-6 and the overall layout. Install air inlet pipe 4-6, ensuring a tight and reliable connection between air inlet pipe 4-6 and pneumatic cavity 4-2. Welding, threaded connection, or quick coupling can be used to prevent gas leakage. The other end of air inlet pipe 4-6 is reserved with an interface for connection to the machine tool air pump. The interface type should match the air outlet of the machine tool air pump for easy connection. Simultaneously, ensure that drive column 4-1 and drive push rod 4-3 are respectively connected to the inner side wall of linkage frame 3-2. The connection method must be firm and reliable, effectively transmitting the thrust generated by pneumatic telescopic assembly 4 to linkage frame 3-2, thereby achieving drive control of fixed clamp 2. After connecting the air circuit, perform a sealing test on the entire air circuit system. This can be done by filling the air circuit with gas at a certain pressure and then checking for gas leaks at each connection point to ensure the air circuit system is well sealed.

[0027] Based on the results of functional testing, the relevant parameters of the module are optimized and adjusted. For example, if the clamping force is insufficient, the air supply pressure of the air pump can be increased appropriately, but care must be taken not to exceed the bearing limits of each component of the module. If the movement speed of the component is found to be too fast or too slow, the flow rate and velocity of the gas can be controlled by adjusting the throttle valve and other devices in the air circuit, thereby adjusting the movement speed of the component. In addition, the position of the limit rings 4-7 and the tightness of the sealing ring gasket 6 can be fine-tuned to improve the overall performance and stability of the module.

[0028] After completing functional testing and parameter optimization, reliability testing is conducted on the pneumatic clamp docking module. This simulates various working conditions in actual operation, and the module undergoes repeated long-term, high-frequency testing to check its stability and reliability during long-term use. Observe whether there is wear, deformation, loosening, or other issues with the components, and whether the air circuit system maintains good sealing performance. If problems are found during reliability testing, the causes should be analyzed in a timely manner and corresponding improvement measures should be taken, such as replacing severely worn components or strengthening the fixing connections of components, until the module can meet the reliability requirements in actual operation.

[0029] like Figures 1-3 As shown, in this embodiment, the end of the linkage 3-2 extends out of the drive cavity 3-1, and the linkage 3-2 is fixedly connected to the fixing clamp 2.

[0030] In some examples, the linkage 3-2 is carefully assembled into the drive cavity 3-1, ensuring that the end of the linkage 3-2 can smoothly extend out of the drive cavity 3-1 and maintain an appropriate gap with the wall of the drive cavity 3-1, so as not to affect the movement flexibility of the linkage 3-2, and not to cause shaking due to excessive gap. The linkage 3-2 is fixedly connected to the fixing clamp 2 by welding or high-strength bolt connection, ensuring that the connection between the two is firm and reliable, and can stably transmit the clamping force during operation. The drive notch 3-3 is precisely machined on the side wall of the linkage 3-2. The size and shape of the drive notch 3-3 must be closely matched with the drive shaft 3-4 to ensure that the drive shaft 3-4 can rotate smoothly in the drive notch 3-3.

[0031] For example, such as Figure 3 As shown, a limiting ring 4-7 is provided on the inner wall of the pneumatic cavity 4-2, and the limiting ring 4-7 is in contact with the pneumatic disk 4-4.

[0032] In some examples, a limiting ring 4-7 and a sealing ring gasket 6 are installed on the inner wall of the pneumatic cavity 4-2 to ensure that the pneumatic disc 4-4 can make tight contact with the limiting ring 4-7 when it moves to the limit position, thereby limiting the stroke of the pneumatic disc 4-4 and preventing it from damaging other components due to excessive movement. The sealing ring gasket 6 can be made of materials with good sealing performance such as rubber or polytetrafluoroethylene, and is installed on the inner wall of the pneumatic cavity 4-2 by pasting or fitting, ensuring that the sealing ring gasket 6 and the pneumatic disc 4-4 can fit tightly together to achieve a good sealing effect, prevent gas leakage in the pneumatic cavity 4-2, and ensure the working efficiency and stability of the pneumatic telescopic assembly 4.

[0033] For example, such as Figure 3 As shown, a sealing ring gasket 6 is provided on the inner wall of the pneumatic cavity 4-2, and the sealing ring gasket 6 is in contact with the pneumatic disk 4-4.

[0034] In some examples, the pneumatic disc 4-4 is installed inside the pneumatic cavity 4-2 to ensure that the pneumatic disc 4-4 is in close contact with the sealing ring gasket 6 to achieve a good seal. The pneumatic disc 4-4 and the drive push rod 4-3 can be fixedly connected by means of threaded connection, welding or riveting to ensure that the connection between the two is firm and reliable and can stably transmit thrust during operation.

[0035] For example, such as Figure 1 As shown, the drive column 4-1 and the drive push rod 4-3 are respectively connected to the inner side wall of the linkage frame 3-2, and the air inlet pipe 4-6 is connected to the machine tool air pump.

[0036] In some examples, after the installation of each component is completed, the pneumatic clamp docking module is tested for overall functionality. The module is connected to the machine tool air pump, the air pump is started, and compressed air is introduced into the pneumatic cavity 4-2. The operation of the pneumatic clamping component 3 and the pneumatic telescopic component 4 is observed. At the same time, the smoothness of the movement of components such as the drive shaft 3-4, the linkage frame 3-2, and the drive push rod 4-3 is observed, and whether there are any abnormal phenomena such as jamming or interference. If any problems are found, the machine is stopped in time for troubleshooting and adjustment.

[0037] For example, such as Figure 1 As shown, the inner wall of the fixing clamp 2 is provided with clamping anti-slip pads 3-6.

[0038] In some examples, since the end of the linkage 3-2 extends out of the drive cavity 3-1 and is fixedly connected to the fixed clamp 2, the rotation of the linkage 3-2 will directly drive the fixed clamp 2 to move synchronously: the two fixed clamps 2 close in opposite directions until they contact the object being clamped. At this time, the clamping anti-slip pad 3-6 on the inner wall of the fixed clamp 2 is in close contact with the surface of the object, which increases the friction to prevent the object from slipping and completes the clamping action (the clamping force can be adjusted by adjusting the air pump pressure to adapt to objects of different weights or materials).

[0039] For example, such as Figure 1 As shown, clamping clearance notches 5 are provided on opposite sides of the drive housing 1, and the clamping clearance notches 5 correspond to the positions of the fixing clamps 2.

[0040] In some examples, the fixing clip 2 is securely installed on the pre-machined position on the side wall of the drive housing 1 by welding or high-strength bolts. Anti-slip pads 3-6 are installed on the inner side wall of the fixing clip 2. Anti-slip pads made of rubber or silicone with high coefficient of friction and good wear resistance can be selected. During installation, strong adhesive can be used to stick them or bolts can be used to fix them to ensure that the anti-slip pads are firmly installed on the fixing clip 2 and will not fall off during use. This effectively increases the friction between the fixing clip 2 and the clamped object and prevents the object from slipping during clamping.

[0041] In use, this pneumatic clamp docking module uses compressed air as a power source. The pneumatic telescopic component 4 converts air pressure energy into mechanical energy, and then the pneumatic clamping component 3 realizes the transmission and direction conversion of force. Finally, it drives the fixed clamp 2 to complete the "clamping-resetting" cycle. The whole process relies on the coordinated cooperation of air circuit control and mechanical structure. No manual operation is required, making it suitable for automated production scenarios.

[0042] When the machine tool air pump is started, compressed air enters the air inlet 4-5 on the side wall of the drive housing 1 through the preset air inlet pipe 4-6, and then flows into the pneumatic cavity 4-2 of the pneumatic telescopic component 4. As compressed air is continuously injected, the air pressure in the pneumatic cavity 4-2 gradually increases, forming a thrust on the pneumatic disc 4-4 (the magnitude of the thrust is positively correlated with the output pressure of the air pump and can be controlled by the air circuit regulating valve).

[0043] Under the action of air pressure thrust, the pneumatic disc 4-4 moves along the inner wall of the pneumatic cavity 4-2 toward the direction of the connecting frame 3-2 (at this time, the pneumatic disc 4-4 is tightly fitted with the sealing ring gasket 6 to ensure no gas leakage and to ensure stable thrust). The drive push rod 4-3, which is fixedly connected to the pneumatic disc 4-4, moves synchronously with the pneumatic disc 4-4. Since the end of the drive push rod 4-3 is connected to the inner wall of the connecting frame 3-2, its thrust acts directly on the connecting frame 3-2.

[0044] Meanwhile, the limiting ring 4-7 on the inner wall of the pneumatic cavity 4-2 will limit the maximum stroke of the pneumatic disc 4-4, preventing damage to the drive push rod 4-3 or the linkage frame 3-2 due to excessive movement, and ensuring the accuracy of the action.

[0045] After being pushed by the drive push rod 4-3, the linkage frame 3-2 rotates around the drive shaft 3-4 as the rotation fulcrum (the drive shaft 3-4 is installed in the drive notch 3-3 of the linkage frame 3-2 and is movably connected to the reinforcing frame 3-5 inside the drive cavity 3-1 through a bearing / sleeve, which ensures smooth rotation and provides support through the reinforcing frame 3-5 to prevent the linkage frame 3-2 from deforming under force).

[0046] In addition, the clamping clearance notch 5 on the side wall of the drive housing 1 provides sufficient space for the closing action of the fixed clamp 2, avoiding interference between the fixed clamp 2 and the drive housing 1, and ensuring a smooth clamping process.

[0047] When it is necessary to release the clamped object, the machine tool air pump stops supplying air, and at the same time, the pneumatic chamber 4-2 is depressurized through the air circuit check valve or exhaust port (the specific exhaust method can be adjusted according to the actual air circuit design). As the air pressure in the pneumatic chamber 4-2 drops to atmospheric pressure, the pneumatic disc 4-4 loses its thrust support.

[0048] At this point, reset can be achieved in two ways: First, a reset spring is preset on the side of the pneumatic cavity 4-2 away from the linkage frame 3-2 (the spring is initially compressed, and the spring releases its elasticity after the air pressure thrust disappears), pushing the pneumatic disc 4-4 to move away from the linkage frame 3-2; Second, a "two-way air path" design is adopted, supplying air to the pneumatic cavity 4-2 in the opposite direction through another air pipe, pushing the pneumatic disc 4-4 to reset (both methods must ensure the sealing between the pneumatic disc 4-4 and the sealing ring gasket 6 to avoid reset jamming).

[0049] During the reset process of the pneumatic disc 4-4, the drive push rod 4-3 is driven to return to its original position synchronously. The thrust of the drive push rod 4-3 on the linkage 3-2 disappears. Under the tension of the reset spring (or the indirect force of the reverse air pressure), the linkage 3-2 rotates in the opposite direction with the drive shaft 3-4 as the fulcrum.

[0050] When the linkage 3-2 rotates in the opposite direction, it drives the two fixed clamps 2 on both sides to open in opposite directions, detach from the surface of the clamped object, until it returns to the initial position. At this time, the entire module completes one "clamping-reset" cycle and can wait for the next air circuit signal to trigger a new action.

[0051] The sealing ring gasket 6 ensures the airtightness of the pneumatic cavity 4-2, preventing air pressure leakage that could lead to insufficient thrust or delayed action. It is a core component that ensures stable clamping force. Through the movable connection, the "linear thrust" of the linkage frame 3-2 is converted into "rotational action". At the same time, the reinforcing frame 3-5 provides support for the drive shaft 3-4, preventing the linkage frame 3-2 from deforming under stress and ensuring action accuracy. By increasing the coefficient of friction, the problem of "sufficient clamping force but object slippage" is solved. It is suitable for clamping requirements on smooth surfaces (such as metal parts) or fragile surfaces (such as plastic parts).

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A pneumatic clamp docking module, characterized in that, include: A drive housing (1) is provided with a fixing clip (2) on its side wall; A pneumatic clamping assembly (3) is disposed inside the drive housing (1); Pneumatic telescopic assembly (4), wherein the drive telescopic assembly is disposed within the drive housing (1); The pneumatic clamping assembly (3) includes a drive cavity (3-1) which is located inside the drive housing (1). A linkage frame (3-2) is provided inside the drive cavity (3-1). The linkage frame (3-2) is located inside the drive housing (1). A drive notch (3-3) is provided on the side wall of the linkage frame (3-2). A drive shaft (3-4) is provided inside the drive notch (3-3). A reinforcing frame (3-5) is provided inside the drive cavity (3-1). The reinforcing frame (3-5) is movably connected to the drive shaft (3-4).

2. The pneumatic clamp docking module according to claim 1, characterized in that, The end of the linkage frame (3-2) extends out of the drive cavity (3-1), and the linkage frame (3-2) is fixedly connected to the fixing clamp (2).

3. The pneumatic clamp docking module according to claim 1, characterized in that, The pneumatic telescopic assembly (4) includes a drive column (4-1), which is disposed inside the drive housing (1). The drive column (4-1) has a pneumatic cavity (4-2) inside, and a drive push rod (4-3) is disposed inside the pneumatic cavity (4-2). A pneumatic disc (4-4) is disposed inside the drive cavity (3-1), and the pneumatic disc (4-4) is connected to the drive push rod (4-3). An air inlet (4-5) is disposed on the side wall of the drive housing (1), and an air inlet pipe (4-6) is disposed inside the air inlet (4-5). The air inlet pipe (4-6) is connected to the pneumatic cavity (4-2).

4. A pneumatic clamp docking module according to claim 3, characterized in that, The inner wall of the pneumatic cavity (4-2) is provided with a limiting ring (4-7), which is in contact with the pneumatic disk (4-4).

5. A pneumatic clamp docking module according to claim 3, characterized in that, The inner wall of the pneumatic cavity (4-2) is provided with a sealing ring gasket (6), which is in contact with the pneumatic disk (4-4).

6. A pneumatic clamp docking module according to claim 3, characterized in that, The drive column (4-1) and the drive push rod (4-3) are respectively connected to the inner side wall of the linkage frame (3-2), and the air inlet pipe (4-6) is connected to the machine tool air pump.

7. A pneumatic clamp docking module according to claim 1, characterized in that, The inner wall of the fixing clamp (2) is provided with a clamping anti-slip pad (3-6).

8. A pneumatic clamp docking module according to claim 1, characterized in that, The drive housing (1) is provided with clamping clearance notches (5) on opposite sides, and the clamping clearance notches (5) correspond to the positions of the fixing clamp (2).

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