Pneumatic clamping mechanism for precision automatic lathe
By using a motor-driven screw and wedge block structure in a pneumatic clamping mechanism, combined with anti-slip blocks and auxiliary clamping plates, the problem of traditional clamping mechanisms being unable to adapt to different workpiece sizes and shapes is solved, achieving stable clamping and high-precision machining of workpieces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional clamping mechanisms struggle to meet the processing requirements of workpieces of different sizes and shapes while ensuring clamping accuracy, leading to workpiece displacement, compromised processing accuracy, and equipment damage.
The pneumatic clamping mechanism, driven by a motor, uses a screw and wedge block structure, combined with rubber anti-slip blocks and auxiliary clamping plates, to achieve precise clamping and stable holding of the workpiece, and enhances friction to prevent loosening.
It improves the stability and reliability of workpieces during processing, reduces scrap rate, and ensures processing accuracy and product quality.
Smart Images
Figure CN224088000U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a pneumatic clamping mechanism for a Swiss-type lathe. Background Technology
[0002] In the field of machining, especially in the machining process of Swiss-type lathes, stable clamping of workpieces is of paramount importance. Traditional clamping mechanisms often struggle to meet the machining requirements of workpieces of different sizes and shapes while ensuring clamping accuracy.
[0003] Some simple chuck clamping methods may result in insufficient clamping force, causing the workpiece to shift during high-speed rotation machining, affecting machining accuracy, and may even lead to workpiece scrap and equipment damage. Moreover, as modern manufacturing industry continues to increase its requirements for product precision and quality, it also poses higher challenges to the reliability and flexibility of clamping mechanisms.
[0004] Therefore, we propose a pneumatic clamping mechanism for Swiss-type lathes. Summary of the Invention
[0005] The main purpose of this utility model is to provide a pneumatic clamping mechanism for Swiss-type lathes, which can effectively solve the problems in the background art by preventing workpiece displacement, damage to machining accuracy, workpiece scrap and equipment damage caused by insufficient clamping force, thereby improving the stability and reliability of the Swiss-type lathe during the machining process.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A pneumatic clamping mechanism for a Swiss-type lathe includes a chuck body. One end of the chuck body has three radial grooves arranged in a ring. A jaw is movably installed in the three radial grooves and clamps a workpiece between the three jaws. Each jaw has a sliding groove and a cavity. A clamping block is slidably connected inside the sliding groove. A wedge block is provided inside the sliding groove. One side of the outer wall of the clamping block is provided with an inclined surface adapted to the wedge block. A motor is fixedly installed inside the cavity. A screw is fixedly connected to the output end of the motor. One end of the screw extends into the sliding groove and is threadedly connected to a threaded sleeve. The end of the threaded sleeve away from the screw is fixedly connected to the wedge block.
[0008] The inner wall of the clamping block is fixedly connected to an anti-slip block, and both ends of the clamping block are fixedly connected to extension blocks. A fixing block is fixedly connected to the side of the extension block near the clamping block, and an auxiliary clamping plate is hinged to the side of the fixing block away from the clamping block. An auxiliary spring with one end fixedly connected to the extension block is fixedly connected to one side of the auxiliary clamping plate.
[0009] By adopting the above technical solution, the three jaws clamp the workpiece under the action of the jaw drive mechanism. When it is necessary to further clamp the workpiece, the motor is started, and the motor drives the screw to rotate. Since the screw and the threaded sleeve are connected by threads, the threaded sleeve will move along the axial direction of the screw. The movement of the threaded sleeve will drive the wedge block to move in the slide groove. Because one side of the outer wall of the clamping block is provided with an inclined surface that matches the wedge block, the movement of the wedge block will push the clamping block to slide in the slide groove toward the workpiece. The anti-slip block on the inner wall of the clamping block will first contact the workpiece. As the clamping block continues to move, the anti-slip block applies clamping force to the workpiece. At the same time, the extension blocks at both ends of the clamping block will also move with the clamping block. When the extension blocks move, the fixed block will drive the auxiliary clamping plate to move. Since the auxiliary clamping plate and the fixed block are hinged, and the auxiliary spring connects the auxiliary clamping plate and the extension block, during the process of the clamping block clamping the workpiece, the auxiliary clamping plate will gradually fit against the surface of the workpiece. The auxiliary spring is compressed, and the auxiliary clamping plate further enhances the clamping effect on the workpiece, so that the workpiece is firmly clamped between the jaws.
[0010] Furthermore, the anti-slip block is a rubber block, and the inner surface of the anti-slip block matches the outer surface of the workpiece.
[0011] By adopting the above technical solution, the rubber material itself has a certain elasticity and friction. On the one hand, when clamping the workpiece, its elasticity can buffer the clamping force applied to the workpiece by the clamping block to a certain extent, avoiding damage to the outer surface of the workpiece due to excessive clamping force, thus protecting the workpiece. On the other hand, the inner surface of the anti-slip block matches the outer surface of the workpiece, which allows the anti-slip block to better fit on the surface of the workpiece, increasing the contact area between the two. According to the relevant principles of friction, the increased contact area and the frictional characteristics of the rubber material itself can effectively improve the friction between the anti-slip block and the workpiece, so that the workpiece can be more firmly clamped between the jaws after being clamped, preventing the workpiece from loosening or shifting during processing and other operations, ensuring processing accuracy and the smooth progress of the entire Swiss-type lathe processing process.
[0012] Furthermore, the inner surface of the auxiliary clamping plate matches the outer surface of the workpiece.
[0013] By adopting the above technical solution, in terms of fit, the matching surface shape allows the auxiliary clamping plate to fit tightly with the workpiece. When the clamping block pushes the auxiliary clamping plate to clamp the workpiece, this tight fit ensures that the auxiliary clamping plate contacts the workpiece to the maximum extent, and there will be no situation where the workpiece cannot be effectively clamped due to local suspension. This makes the clamping force applied by the auxiliary clamping plate to the workpiece more evenly distributed and stabilizes the position of the workpiece in all directions.
[0014] From the perspective of enhancing the clamping effect, a closely matched surface can increase the friction between the auxiliary clamp and the workpiece. When the workpiece is subjected to external forces, such as cutting forces or vibrations generated during Swiss-type lathe machining, the greater friction can better resist these external forces, preventing the workpiece from loosening or slipping between the jaws. This further ensures the positioning accuracy of the workpiece during the machining process, helps to improve the machining precision and quality, and ensures that the entire Swiss-type lathe machining operation can be carried out stably and reliably.
[0015] Furthermore, a sliding rod is fixedly connected to the wedge block, and the sliding rod is slidably connected between the groove and the cavity.
[0016] By adopting the above technical solution, on the one hand, the slide rod plays a guiding role in the movement of the wedge block. When the motor starts and the screw drives the screw sleeve to push the wedge block to move, the slide rod slides along the limited path between the slide groove and the cavity, which can ensure that the wedge block is displaced in the accurate direction and avoid the wedge block from deflecting or getting stuck during the movement. This allows the wedge block to push the clamping block to slide in the slide groove smoothly and accurately, ensuring the smoothness and reliability of the entire clamping mechanism for clamping the workpiece.
[0017] On the other hand, the slide bar also enhances the stability of the wedge block during movement. Since the wedge block needs to move repeatedly during operation to clamp and release the workpiece, the slide bar limits the wedge block structurally through sliding cooperation with the corresponding slide groove, so that it can maintain a stable state when it moves under force, and will not easily shake or deviate from the normal movement trajectory. This extends the service life of the entire clamping mechanism, helps to perform the function of clamping the workpiece stably for a long time, and ensures the stability and accuracy of workpiece clamping during Swiss-type machining.
[0018] Furthermore, a limiting groove is formed in the sliding groove, and one side of each of the multiple clamping blocks is slidably connected to the limiting groove.
[0019] By adopting the above technical solution, firstly, from the perspective of guidance, the limiting groove provides a precise guiding path for the sliding of the clamping block. When the wedge block pushes the clamping block to move under the action of the motor and other driving components, the clamping block slides along the limiting groove, which can ensure that it is accurately displaced in the predetermined direction, avoiding the situation where the clamping block swings randomly in the sliding groove and deviates from the correct movement trajectory. This ensures that the clamping block can stably and accurately perform clamping or releasing operations on the workpiece, and guarantees the reliability and accuracy of the entire clamping mechanism.
[0020] Secondly, in terms of stability, the sliding connection between the limiting groove and the clamping block enhances the stability of the clamping block during movement. As the clamping mechanism is repeatedly used and the clamping block slides continuously, the limiting groove restricts the range of motion of the clamping block from the side, so that it can remain stable when subjected to external forces, especially the pushing force of the wedge block and the reaction force of the workpiece. It will not easily cause abnormal situations such as misalignment or disengagement from the groove, which helps to maintain the structural integrity of the entire clamping mechanism and ensures that it can effectively clamp the workpiece in a long-term stable manner, meeting the requirements of workpiece clamping accuracy and stability in the Swiss-type machining process.
[0021] Furthermore, from a positioning perspective, the limiting groove can assist in the positioning function of the clamping block. For example, when clamping the workpiece to a specific position, the position of the clamping block in the limiting groove can be accurately matched, ensuring that the clamping degree of the workpiece can be kept relatively consistent each time. This is beneficial to improving the positioning accuracy of the workpiece during the processing and plays a positive role in ensuring the uniformity of the product quality produced by the Swiss-type lathe.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] This utility model discloses a pneumatic clamping mechanism for Swiss-type lathes. Through a unique structural design of a motor-driven screw, screw sleeve, and wedge block, the clamping block achieves precise clamping of the workpiece. In conjunction with the anti-slip block on the inner wall of the clamping block, the friction between the clamping block and the workpiece is effectively increased, preventing the workpiece from shifting during processing.
[0024] This utility model discloses a pneumatic clamping mechanism for a Swiss-type headstock lathe. Under the action of an auxiliary spring, the auxiliary clamping plate can closely fit the workpiece surface, further enhancing the clamping effect and greatly improving the stability of the workpiece during processing. This ensures that the Swiss-type headstock lathe can perform high-precision processing operations, effectively reducing the scrap rate caused by insecure workpiece clamping and improving product quality. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of a pneumatic clamping mechanism for a Swiss-type lathe according to the present invention.
[0026] Figure 2 This is a schematic diagram of the jaw structure of a pneumatic clamping mechanism for a Swiss-type lathe according to the present invention.
[0027] Figure 3 This utility model relates to a pneumatic clamping mechanism for a Swiss-type lathe. Figure 2 Enlarged view of point A in the middle.
[0028] Figure 4 This is a schematic diagram of the internal structure of the jaws of a pneumatic clamping mechanism for a Swiss-type machine according to the present invention.
[0029] In the diagram: 1. Chuck body; 2. Radial groove; 3. Chuck jaw; 4. Workpiece; 5. Slide groove; 6. Clamping block; 7. Wedge block; 8. Cavity; 9. Motor; 10. Screw; 11. Screw sleeve; 12. Anti-slip block; 13. Extension block; 14. Fixing block; 15. Auxiliary clamping plate; 16. Auxiliary spring; 17. Slide rod; 18. Limiting groove. Detailed Implementation
[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0031] To prevent problems such as workpiece displacement, compromised machining accuracy, workpiece scrap, and equipment damage caused by insufficient clamping force, and thus improve the stability and reliability of the Swiss-type lathe during the machining process, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a pneumatic clamping mechanism for a Swiss-type lathe includes a chuck body 1. One end of the chuck body 1 has three radial grooves 2 arranged in a ring. A jaw 3 is movably installed in the three radial grooves 2, and a workpiece 4 is clamped between the three jaws 3. The jaws 3 have a sliding groove 5 and a cavity 8 respectively. A clamping block 6 is slidably connected inside the sliding groove 5. A wedge block 7 is provided inside the sliding groove 5. One side of the outer wall of the clamping block 6 is provided with an inclined surface adapted to the wedge block 7. A motor 9 is fixedly installed inside the cavity 8. A screw 10 is fixedly connected to the output end of the motor 9. One end of the screw 10 extends into the sliding groove 5 and is threadedly connected to a threaded sleeve 11. The end of the threaded sleeve 11 away from the screw 10 is fixedly connected to the wedge block 7.
[0032] The inner wall of the clamping block 6 is fixedly connected to an anti-slip block 12. The two ends of the clamping block 6 are fixedly connected to extension blocks 13. The side of the extension block 13 closest to the clamping block 6 is fixedly connected to a fixing block 14. The side of the fixing block 14 away from the clamping block 6 is hinged to an auxiliary clamping plate 15. An auxiliary spring 16 with one end fixedly connected to the extension block 13 is fixedly connected to one side of the auxiliary clamping plate 15.
[0033] During use, the three jaws 3 clamp the workpiece 4 under the action of the jaw 3 drive mechanism. When it is necessary to further clamp the workpiece 4, the motor 9 is started, and the motor 9 drives the screw 10 to rotate. Since the screw 10 and the screw sleeve 11 are threadedly connected, the screw sleeve 11 will move along the axial direction of the screw 10. The movement of the screw sleeve 11 drives the wedge block 7 to move in the slide groove 5. Because one side of the outer wall of the clamping block 6 is provided with an inclined surface that matches the wedge block 7, the movement of the wedge block 7 will push the clamping block 6 to slide in the slide groove 5 toward the workpiece 4. The anti-slip block 12 on the inner wall of the clamping block 6 will first contact the workpiece 4, and as the clamping block... As 6 continues to move, the anti-slip block 12 applies a clamping force to the workpiece 4. At the same time, the extension blocks 13 at both ends of the clamping block 6 also move with the clamping block 6. When the extension blocks 13 move, the fixing block 14 will drive the auxiliary clamping plate 15 to move. Since the auxiliary clamping plate 15 and the fixing block 14 are hinged, and the auxiliary spring 16 connects the auxiliary clamping plate 15 and the extension blocks 13, during the process of the clamping block 6 clamping the workpiece 4, the auxiliary clamping plate 15 will gradually fit against the surface of the workpiece 4, the auxiliary spring 16 will be compressed, and the auxiliary clamping plate 15 will further enhance the clamping effect on the workpiece 4, so that the workpiece 4 is firmly clamped between the jaws 3.
[0034] For example, such as Figure 2 , Figure 3 As shown, the present invention also includes a rubber block 12, wherein the inner surface of the anti-slip block 12 matches the outer surface of the workpiece 4.
[0035] When in use, the rubber material itself has a certain elasticity and friction. On the one hand, when clamping the workpiece 4, its elasticity can buffer the clamping force applied to the workpiece 4 by the clamping block 6 to a certain extent, avoiding damage to the outer surface of the workpiece 4 due to excessive clamping force, thus protecting the workpiece 4. On the other hand, the inner surface of the anti-slip block 12 matches the outer surface of the workpiece 4, which allows the anti-slip block 12 to better fit on the surface of the workpiece 4, increasing the contact area between the two. According to the relevant principles of friction, the increased contact area and the frictional characteristics of the rubber material itself can effectively improve the friction between the anti-slip block 12 and the workpiece 4, so that the workpiece 4 can be more firmly clamped between the jaws 3 after being clamped, preventing the workpiece 4 from loosening or shifting during processing and other operations, ensuring processing accuracy and the smooth progress of the entire Swiss-type lathe processing process.
[0036] For example, such as Figure 2 , Figure 3 As shown, the present invention also includes an auxiliary clamping plate 15 whose inner surface matches the outer surface of the workpiece 4.
[0037] In terms of fit, the matching surface shape allows the auxiliary clamping plate 15 to fit tightly against the workpiece 4. When the clamping block 6 pushes the auxiliary clamping plate 15 to clamp the workpiece 4, this tight fit ensures that the auxiliary clamping plate 15 contacts the workpiece 4 to the maximum extent, and there will be no situation where the workpiece cannot be effectively clamped due to local suspension. This makes the clamping force applied by the auxiliary clamping plate 15 to the workpiece 4 more evenly distributed, and stabilizes the position of the workpiece 4 in all directions.
[0038] From the perspective of enhancing the clamping effect, the closely matched surfaces can increase the friction between the auxiliary clamping plate 15 and the workpiece 4. When the workpiece 4 is subjected to external forces, such as the cutting force and vibration generated during Swiss-type machining, the greater friction can better resist these external forces, prevent the workpiece 4 from loosening or sliding between the jaws 3, further ensure the positioning accuracy of the workpiece 4 during the machining process, help improve the machining precision and quality, and ensure that the entire Swiss-type machining operation can be carried out stably and reliably.
[0039] For example, such as Figure 4 As shown, the present invention also includes a sliding rod 17 fixedly connected to the wedge block 7, and the sliding rod 17 is slidably connected between the sliding groove 5 and the cavity 8.
[0040] In use, on the one hand, the slide rod 17 guides the movement of the wedge block 7. When the motor 9 starts and the screw 10 drives the screw sleeve 11 to push the wedge block 7 to move, the slide rod 17 slides along the limited path between the slide groove 5 and the cavity 8, which can ensure that the wedge block 7 is displaced in the accurate direction and avoid the wedge block 7 from deflecting or getting stuck during the movement. This allows the wedge block 7 to push the clamping block 6 to slide in the slide groove 5 smoothly and accurately, ensuring the smoothness and reliability of the clamping action of the entire clamping mechanism on the workpiece 4.
[0041] On the other hand, the slide bar 17 also enhances the stability of the wedge block 7 during movement. Since the wedge block 7 needs to move repeatedly during operation to achieve the clamping and releasing operation of the workpiece 4, the slide bar 17 limits the wedge block 7 structurally through sliding cooperation with the corresponding slide groove, so that it can maintain a stable state when it is moved under force, and will not easily shake or deviate from the normal movement trajectory, thereby extending the service life of the entire clamping mechanism, helping to perform the function of clamping the workpiece 4 stably for a long time, and ensuring the stability and accuracy of workpiece 4 clamping during the Swiss-type lathe machining process.
[0042] For example, such as Figure 4 As shown, the present invention also includes a limiting groove 18 formed in the sliding groove 5, and one side of each of the plurality of clamping blocks 6 is slidably connected to the limiting groove 18.
[0043] In use, firstly, from the perspective of guidance, the limiting groove 18 provides a precise guiding path for the sliding of the clamping block 6. When the wedge block 7 pushes the clamping block 6 to move under the action of the motor 9 and other driving components, the clamping block 6 slides along the limiting groove 18, which can ensure that it is accurately displaced in the predetermined direction, and avoid the clamping block 6 swinging randomly in the slide groove 5 and deviating from the correct movement trajectory. This ensures that the clamping block 6 can stably and accurately perform clamping or releasing operations on the workpiece 4, and ensures the reliability and accuracy of the entire clamping mechanism.
[0044] Secondly, in terms of stability, the sliding connection between the limiting groove 18 and the clamping block 6 enhances the stability of the clamping block 6 during movement. During repeated use of the clamping mechanism and the continuous sliding of the clamping block 6, the limiting groove 18 restricts the range of motion of the clamping block 6 from the side, so that it can maintain a stable state when subjected to external forces, especially the pushing force of the wedge block 7 and the reaction force of the workpiece 4, and will not easily experience abnormal situations such as misalignment or disengagement from the slide groove 5. This helps to maintain the structural integrity of the entire clamping mechanism and ensures that it can effectively clamp the workpiece 4 in a long-term stable manner, meeting the requirements of clamping accuracy and stability of the workpiece 4 during the machining process of the Swiss-type lathe.
[0045] Furthermore, from a positioning perspective, the limiting groove 18 can assist in the positioning function of the clamping block 6. For example, when clamping the workpiece 4 to a specific position, the position of the clamping block 6 in the limiting groove 18 can be accurately matched, ensuring that the clamping degree of the workpiece 4 can be kept relatively consistent each time. This is beneficial to improving the positioning accuracy of the workpiece 4 during the processing and plays a positive role in ensuring the uniformity of the product quality produced by the Swiss-type lathe.
[0046] It should be noted that this utility model is a pneumatic clamping mechanism for a Swiss-type lathe. In the initial state, the three jaws 3 are in the open state. At this time, the workpiece 4 to be processed is placed between the three jaws 3, so that it is roughly located in the center of the jaws 3, in preparation for the subsequent clamping operation.
[0047] The three jaws 3 are driven to move towards the center by the jaw drive mechanism to initially clamp the workpiece 4. The jaw drive mechanism adopts a pneumatic drive method, which can generate enough force to push the jaws to move inward along the radial groove, thereby initially fixing the position of the workpiece and preventing it from having a large displacement in subsequent operations.
[0048] When higher clamping accuracy and stability of the workpiece are required, motor 9 is started, which drives screw 10 to rotate. Due to the threaded connection between screw 10 and screw sleeve 11, screw sleeve 11 will move along the axial direction of screw 10. The movement of screw sleeve 11 will then drive wedge block 7, which is fixedly connected to it, to move within slide groove 5. Because one side of the outer wall of clamping block 6 is provided with an inclined surface that matches wedge block 7, the movement of wedge block 7 will push clamping block 6 to slide towards workpiece 4 within slide groove 5. The inner wall of clamping block 6 has anti-slip properties. The slider 12 will first contact the workpiece 4. As the clamping block 6 continues to move, the anti-sliding slider 12 applies clamping force to the workpiece 4. At the same time, the extension blocks 13 at both ends of the clamping block 6 will also move with the clamping block 6. The fixing block 14 drives the auxiliary clamping plate 15 to move. Under the action of the auxiliary spring 16, the auxiliary clamping plate 15 will gradually fit against the surface of the workpiece 4, further enhancing the clamping effect on the workpiece 4, so that the workpiece 4 is firmly clamped between the jaws 3, in order to meet the requirements of clamping accuracy and stability of the workpiece 4 during the machining process of the Swiss-type lathe.
[0049] After the workpiece 4 is clamped, the cutting tools and other processing parts of the Swiss-type lathe begin to perform processing operations on the workpiece 4, such as turning, drilling, milling, etc. At this time, the clamping mechanism must maintain a stable clamping of the workpiece 4 to prevent the workpiece 4 from loosening or shifting during the processing, so as to ensure processing accuracy and quality.
[0050] After the workpiece 4 is processed, the motor 9 reverses, and the screw 10 drives the screw sleeve 11 and the wedge block 7 to move in opposite directions. After losing the thrust of the wedge block 7, the clamping block 6 moves away from the workpiece 4 under the action of the restoring force of the auxiliary spring 16. The auxiliary clamping plate 15 also returns to the initial open state under the action of the auxiliary spring 16. At the same time, the chuck drive mechanism drives the chuck 3 to open outward, thereby releasing the workpiece 4 and making it easier to take out the processed workpiece 4.
[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pneumatic clamping mechanism for a Swiss-type lathe, comprising a chuck body (1), characterized in that, The chuck body (1) has three radial grooves (2) arranged in a ring at one end. The three radial grooves (2) are movably installed with jaws (3). The jaws (3) hold the workpiece (4) between them. The jaws (3) are respectively provided with a sliding groove (5) and a cavity (8). The sliding groove (5) is slidably connected with a clamping block (6). The sliding groove (5) is provided with a wedge block (7). The outer wall of one side of the clamping block (6) is provided with an inclined surface that matches the wedge block (7). The cavity (8) is fixedly installed with a motor (9). The output end of the motor (9) is fixedly connected with a screw (10). One end of the screw (10) extends into the sliding groove (5) and is threadedly connected with a threaded sleeve (11). The end of the threaded sleeve (11) away from the screw (10) is fixedly connected to the wedge block (7). The inner wall of the clamping block (6) is fixedly connected to an anti-slip block (12), and the two ends of the clamping block (6) are fixedly connected to extension blocks (13). The side of the extension block (13) close to the clamping block (6) is fixedly connected to a fixing block (14). The side of the fixing block (14) away from the clamping block (6) is hinged to an auxiliary clamping plate (15). One side of the auxiliary clamping plate (15) is fixedly connected to an auxiliary spring (16) with one end fixedly connected to the extension block (13).
2. The pneumatic clamping mechanism for a Swiss-type lathe according to claim 1, characterized in that: The anti-slip block (12) is a rubber block, and the inner surface of the anti-slip block (12) matches the outer surface of the workpiece (4).
3. The pneumatic clamping mechanism for a Swiss-type lathe according to claim 1, characterized in that: The inner surface of the auxiliary clamp (15) matches the outer surface of the workpiece (4).
4. The pneumatic clamping mechanism for a Swiss-type lathe according to claim 1, characterized in that: A slide rod (17) is fixedly connected to the wedge block (7), and the slide rod (17) is slidably connected between the slide groove (5) and the cavity (8).
5. A pneumatic clamping mechanism for a Swiss-type lathe according to claim 1, characterized in that: A limiting groove (18) is provided in the sliding groove (5), and one side of each of the multiple clamping blocks (6) is slidably connected to the limiting groove (18).