Bar feeding anti-flutter damper of precision automatic lathe

Abstract

The utility model relates to an anti-flutter damper for bar feeding of a precision automatic lathe, which belongs to the precision automatic lathe technology and comprises a positioning base and a transverse mounting strip block which are fixed on the precision automatic lathe, the transverse mounting strip block is fixed at the top of the positioning base, a limit sliding groove is arranged at the top of the transverse mounting strip block, and a transverse moving adjusting component is mounted in the limit sliding groove. A guide sleeve is fixedly installed on the transverse moving adjusting assembly, a porous alloy layer is installed on the inner wall of the guide sleeve, viscous fluid is arranged in the porous alloy layer, and wiping cleaning rings are installed at the two ends of the porous alloy layer and rotationally connected with the porous alloy layer through rotary connecting rings. The bar material wiping and cleaning device can adapt to bar materials of different specifications, dynamically optimizes damping strength, remarkably improves machining stability, can achieve synchronous driving of the wiping and cleaning ring and the transverse movement, does not need an additional power source, removes cuttings and impurities in real time, improves machining efficiency, and improves machining quality. A damping channel is guaranteed to be unblocked.

Description

A chatter damper for bar feed of a Swiss-type lathe Technical Field

[0001] This utility model relates to the field of Swiss-type headstock technology, and in particular to a flutter damper for bar feed in Swiss-type headstock machines. Background Technology

[0002] The Swiss-type lathe bar feed chatter damper is a vibration reduction device specifically designed for machining slender bars. By dynamically adjusting the damping characteristics of the feed system, it effectively suppresses high-frequency chatter and low-frequency vibration. Integrated into the Swiss-type lathe feed mechanism, the damper significantly improves surface quality and extends tool life, addressing the instability inherent in overhanging bar machining. It is particularly suitable for turning high-precision slender parts in medical, aerospace, and other applications.

[0003] However, existing dampers have a fixed buffer position when in use, and the buffering effect is not good for bars of different specifications. At the same time, when the bar is fed, the chips adhere to the bar, affecting the damping effect and the anti-chatter effect is not good, which has certain drawbacks in use.

[0004] In view of the above, this utility model is hereby proposed. Summary of the Invention

[0005] To overcome the technical defects of the existing technology, this utility model provides a chatter damper for the bar feed of a Swiss-type lathe. It effectively absorbs the vibration and impact during bar feeding, significantly improves the processing stability, adapts to different specifications of bars and dynamically optimizes the damping strength, significantly improves processing stability, and can realize the synchronous drive of the wiping and cleaning ring and the lateral movement without the need for an additional power source. It can remove chips and impurities in real time and ensure that the damping channel is unobstructed.

[0006] The technical solution adopted by this utility model is as follows: it includes a positioning base fixed on a sliding headstock and a transverse mounting block. The transverse mounting block is fixed on the top of the positioning base. A limiting groove is formed on the top of the transverse mounting block. The transverse adjustment component is installed in the limiting groove. The guide sleeve is fixedly installed on the transverse adjustment component. The porous alloy layer is installed on the inner wall of the guide sleeve. The porous alloy layer contains a sticky fluid. The wiping and cleaning rings are installed at both ends of the porous alloy layer. The wiping and cleaning rings are rotatably connected to the porous alloy layer through the rotating connecting rings. The wiping and cleaning rings are connected to the transverse adjustment component through the transmission connecting component.

[0007] Preferably, in order to enable the adjusting threaded rod to rotate in the limiting slide groove via the rotary joint by controlling the servo motor to turn on, the transverse adjustment assembly includes the servo motor and the adjusting threaded rod. The servo motor is fixed on the inner wall of one end of the limiting slide groove, and the adjusting threaded rod is rotatably mounted on the inner wall of the other end of the limiting slide groove via the rotary joint. One end of the adjusting threaded rod is fixedly connected to the output shaft of the servo motor.

[0008] Preferably, in order to drive the threaded slider to slide in the limiting groove by controlling the rotation of the adjusting threaded rod, the threaded slider is installed on the adjusting threaded rod, and the threaded slider is slidably engaged in the limiting groove.

[0009] Preferably, in order to enable the threaded slider to move the guide sleeve through the vertical adjustment frame and realize the position adjustment of the guide sleeve, the vertical adjustment frame is fixedly installed on the top of the threaded slider, and the guide sleeve is fixed on the top of the vertical adjustment frame.

[0010] Preferably, in order for the adjusting threaded rod to drive the rotary drive column to rotate on the inner wall of the mounting side plate via the timing belt, the transmission connection assembly includes the mounting side plate and the annular toothed sleeve. The annular toothed sleeve is fixedly sleeved on the wiping and cleaning ring. The mounting side plate is fixed to the top two ends of the transverse mounting strip. The rotary drive column is rotatably mounted on the inner wall of the mounting side plate. The rotary drive column is connected to the adjusting threaded rod via the timing belt.

[0011] Preferably, in order to enable the drive gear to slide laterally on the transverse drive shaft, the transverse drive shaft is fixedly mounted on the rotary drive column, and the drive gear is slidably sleeved on the transverse drive shaft.

[0012] Preferably, in order for the transverse drive shaft to drive the drive gear to rotate via the smooth snap-fit ​​strip, the smooth snap-fit ​​strip is fixedly installed on the outer wall of the transverse drive shaft, and the smooth snap-fit ​​sleeve is slidably inserted into the drive gear.

[0013] Preferably, in order to control the rotation of the drive gear, the annular gear sleeve can be rotated, and the annular gear sleeve is meshed with the drive gear.

[0014] The beneficial effects of this utility model are as follows: through the synergistic effect of the porous alloy layer and the viscous fluid, the vibration and impact during bar feeding are effectively absorbed, significantly improving processing stability. At the same time, the guide sleeve position is precisely controlled by the transverse adjustment component to adapt to bars of different specifications and dynamically optimize the damping strength, significantly improving processing stability. The transmission connection component realizes the synchronous drive of the wiping and cleaning ring and the transverse movement, without the need for an additional power source, and removes chips and impurities in real time, ensuring that the damping channel is unobstructed and improving the anti-chatter effect. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a schematic diagram of the transverse adjustment component of this utility model;

[0017] Figure 3 is a schematic diagram of the connection structure between the annular gear sleeve and the drive gear of this utility model.

[0018] Figure 4 is a schematic diagram of the installation structure of the porous alloy layer of this utility model;

[0019] Figure 5 is a schematic diagram of the installation structure of the smooth snap-fit ​​strip of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Positioning base; 2. Horizontal mounting strip; 3. Horizontal adjustment assembly; 301. Servo motor; 302. Adjusting threaded rod; 303. Rotary joint; 304. Threaded slider; 305. Vertical adjustment frame; 4. Guide sleeve; 5. Porous alloy layer; 6. Wiping and cleaning ring; 7. Rotary connecting ring; 8. Transmission connecting assembly; 801. Mounting side plate; 802. Annular gear sleeve; 803. Rotary drive column; 804. Synchronous belt; 805. Horizontal drive shaft; 806. Drive gear; 807. Smooth snap-fit ​​strip. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] As shown in Figures 1-5, this embodiment provides a chatter damper for the bar feed of a Swiss Army headstock, including a positioning base 1 fixed on the Swiss Army headstock and a transverse mounting block 2. The transverse mounting block 2 is fixed to the top of the positioning base 1. A limit groove is formed on the top of the transverse mounting block 2, and a transverse adjustment component 3 is installed in the limit groove. A guide sleeve 4 is fixedly installed on the transverse adjustment component 3. A porous alloy layer 5 is installed on the inner wall of the guide sleeve 4. A fluid is contained in the porous alloy layer 5. Wiping and cleaning rings 6 are installed at both ends of the porous alloy layer 5. The cleaning ring 6 is rotatably connected to the porous alloy layer 5 via the rotating connecting ring 7, and the wiping cleaning ring 6 is connected to the transverse adjustment component 3 via the transmission connecting assembly 8. In use, the positioning base 1 is securely installed on the working table of the Swiss-type lathe, and the transverse mounting block 2 is fixed to the top of the positioning base 1. The transverse adjustment component 3 controls the guide sleeve 4 to move along the limiting slide groove to a suitable position, aligning the axis of the guide sleeve 4 with the bar stock feed path. When the bar stock passes through the guide sleeve 4, the viscous fluid in the porous alloy layer 5 is compressed, generating a damping effect that effectively absorbs vibration and impact. During feeding, the transmission connecting assembly 8, under the action of the transverse adjustment component 3, drives the wiping cleaning ring 6 to rotate at a low speed around the rotating connecting ring 7, removing chips and impurities adhering to the bar stock in real time, preventing impurities from entering the inner side of the porous alloy layer 5, and keeping the damping channel unobstructed. Furthermore, by adjusting the position of the guide sleeve 4 through the transverse adjustment component 3, it can adapt to different specifications of bar stock and optimize the damping strength, ensuring processing stability.

[0023] As a technical optimization of this utility model, as shown in Figure 2, the transverse adjustment component 3 includes a servo motor 301 and an adjusting threaded rod 302. The servo motor 301 is fixed on the inner wall of one end of the limiting slide groove, and the adjusting threaded rod 302 is rotatably installed on the inner wall of the other end of the limiting slide groove through a rotating joint 303. One end of the adjusting threaded rod 302 is fixedly connected to the output shaft of the servo motor 301. A threaded slider 304 is installed on the adjusting threaded rod 302. The threaded slider 304 is slidably engaged in the limiting slide groove. A vertical adjustment frame 305 is fixedly installed on the top of the threaded slider 304, and a guide sleeve 4 is fixed on the top of the vertical adjustment frame 305. In use, the positioning base 1 is fixed to the working table of the Swiss Army machine, the transverse mounting block 2 is securely installed on the top of the base, the servo motor 301 is started, the adjusting threaded rod 302 is driven to rotate, and the threaded slider 304 is moved laterally along the limiting slide groove. The guide sleeve 4 is adjusted to different positions of the bar stock through the vertical adjustment frame 305. As the bar stock passes through the guide sleeve 4, the viscous fluid within the porous alloy layer 5 is compressed, generating a damping effect that suppresses vibration. During the feeding process, the transmission connection assembly 8, in conjunction with the wiping and cleaning ring 6, rotates at a low speed to maintain the unobstructed damping channel. The position of the guide sleeve 4 is precisely controlled by the servo motor 301 to adapt to different specifications of bar stock and optimize the damping strength, ensuring efficient and stable processing.

[0024] As a technical optimization of this utility model, as shown in Figures 2 and 3, the transmission connection assembly 8 includes a mounting side plate 801 and an annular gear sleeve 802. The mounting side plate 801 is fixed to both ends of the top of the transverse mounting strip 2. A rotary drive column 803 is rotatably mounted on the inner wall of the mounting side plate 801. The rotary drive column 803 is connected to the adjusting threaded rod 302 via a synchronous belt 804. A transverse drive shaft 805 is fixedly mounted on the rotary drive column 803. A drive gear 806 is slidably sleeved on the transverse drive shaft 805. A smooth clip is fixedly mounted on the outer wall of the transverse drive shaft 805. The connecting strip 807 and the smooth snap-fit ​​sleeve are slidably inserted into the drive gear 806. The annular gear sleeve 802 is fixedly fitted onto the wiping and cleaning ring 6, and the annular gear sleeve 802 is meshed with the drive gear 806. In use, the servo motor 301 drives the adjusting threaded rod 302 to rotate, which in turn drives the drive column 803 to rotate via the synchronous belt 804, thereby driving the transverse drive shaft 805 to rotate. Under the action of the smooth snap-fit ​​strip 807, the drive gear 806 rotates. When adjusting the position of the guide sleeve 4, the drive gear 806 can move on the transverse drive shaft 805 via the smooth snap-fit ​​strip 807. The drive gear 806 meshes with the annular gear sleeve 802, driving the wiping and cleaning ring 6 to rotate at a low speed around the bar stock. When the bar stock is fed, the viscous fluid damping absorbs vibration, while the cleaning ring scrapes away chips from the outer wall of the bar stock in real time. The lateral adjustment and cleaning action are linked through the synchronous belt 804 transmission, requiring no additional power source, ensuring stable and efficient damping during processing, and adapting to different bar stock specifications.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A chatter damper for bar feed on a Swiss-type headstock machine, comprising a positioning base (1) fixed on the Swiss-type headstock machine and a transverse mounting block (2), characterized in that: The horizontal mounting block (2) is fixed on the top of the positioning base (1). A limiting groove is opened on the top of the horizontal mounting block (2). A horizontal movement adjustment component (3) is installed in the limiting groove. A guide sleeve (4) is fixedly installed on the horizontal movement adjustment component (3). A porous alloy layer (5) is installed on the inner wall of the guide sleeve (4). A sticky fluid is provided in the porous alloy layer (5). Wiping and cleaning rings (6) are installed at both ends of the porous alloy layer (5). The wiping and cleaning rings (6) are rotatably connected to the porous alloy layer (5) through a rotating connecting ring (7). The wiping and cleaning rings (6) are connected to the horizontal movement adjustment component (3) through a transmission connecting component (8).

2. The anti-chatter damper for bar feed of a Swiss Army machine according to claim 1, characterized in that: The transverse adjustment assembly (3) includes a servo motor (301) and an adjusting threaded rod (302). The servo motor (301) is fixed on the inner wall of one end of the limiting slide groove, and the adjusting threaded rod (302) is rotatably installed on the inner wall of the other end of the limiting slide groove through a rotating joint (303). One end of the adjusting threaded rod (302) is fixedly connected to the output shaft of the servo motor (301).

3. The anti-chatter damper for Swiss-type headstock feed according to claim 2, characterized in that: A threaded slider (304) is installed on the adjusting threaded rod (302), and the threaded slider (304) is slidably engaged in the limiting groove.

4. The bar feed anti-chatter damper of claim 3, wherein: A vertical adjustment frame (305) is fixedly installed on the top of the threaded slider (304), and the guide sleeve (4) is fixed on the top of the vertical adjustment frame (305).

5. The bar feed anti-chatter damper of claim 2, wherein: The transmission connection assembly (8) includes a mounting side plate (801) and an annular toothed sleeve (802). The annular toothed sleeve (802) is fixedly sleeved on the wiping and cleaning ring (6). The mounting side plate (801) is fixed at both ends of the top of the transverse mounting strip (2). A rotary drive column (803) is rotatably mounted on the inner wall of the mounting side plate (801). The rotary drive column (803) is connected to the adjusting threaded rod (302) through a synchronous belt (804).

6. The anti-chatter damper for bar feed of a Swiss Army machine according to claim 5, characterized in that: A transverse drive shaft (805) is fixedly mounted on the rotary drive column (803), and a drive gear (806) is slidably sleeved on the transverse drive shaft (805).

7. The bar feed anti-chatter damper of claim 6, wherein: A smooth snap-fit ​​strip (807) is fixedly installed on the outer wall of the transverse drive shaft (805), and the smooth snap-fit ​​sleeve is slidably inserted into the drive gear (806).

8. The anti-chatter damper for bar feed of a Swiss Army machine according to claim 7, characterized in that: The annular toothed sleeve (802) is meshed with the drive gear (806).

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