Accurate tool adjusting mechanism for centerless lathe

Abstract

The utility model belongs to the technical field of centerless lathe, concretely relates to a centerless lathe precision cutter adjusting mechanism, including fixed base, the inside sliding connection of fixed base has the sliding block, the outside fixed connection of sliding block has the guide block, the guide block is connected with fixed base slidingly, the inside rotation connection of fixed base has the threaded rod, the upper end fixed mounting of fixed base has the motor, the outside fixed connection of sliding block has the mounting seat, the mounting seat is contacted with fixed base. The utility model innovative design motor drive's threaded rod, sliding block adjusting mechanism, cooperate the double guide system that guide block and guide rod constitute, ensure cutter main body movement trajectory accurate controllable, add guide pulley auxiliary mounting seat steady displacement simultaneously, effectively restrain the vibration interference, three -fold stable mechanism synergistic effect, the cutter position regulation precision has been improved significantly, solved the problem that the precision is insufficient after the centerless lathe cutter adjustment completely.

Description

Technical Field

[0001] This utility model relates to the field of centerless lathe technology, specifically to a precision tool adjustment mechanism for a centerless lathe. Background Technology

[0002] A centerless lathe is a unique metal cutting machine widely used for precision machining of the outer surfaces of rotating workpieces such as shafts and bars. Unlike traditional lathes that require the workpiece to be clamped and rotated, centerless lathes employ innovative process principles, achieving efficient cutting through the relative motion between the tool and the workpiece. This equipment is particularly suitable for high-volume production environments, capable of stably completing high-precision, high-surface-quality external cylindrical machining tasks, playing a crucial role in industries such as machinery manufacturing, automotive parts, and bearing production. In modern production lines, centerless lathes, with their continuous machining capabilities and stable cutting performance, effectively improve material utilization and production efficiency. The equipment can adjust cutting parameters according to the workpiece material characteristics, adapting to the machining needs of various materials from ordinary carbon steel to high-hardness alloys. With the popularization of CNC technology, modern centerless lathes have achieved automated control of the machining process, further reducing the need for manual intervention and ensuring product consistency. This equipment has become one of the core pieces of equipment for the mass production of precision shaft parts.

[0003] However, existing centerless lathes have revealed a deficiency in tool adjustment precision during actual machining: the tool position after manual or mechanical adjustment often deviates, resulting in errors in cutting depth, cutting edge angle and preset parameters, directly causing problems such as uneven workpiece surface roughness and out-of-tolerance dimensional accuracy; especially in continuous batch machining, the cumulative effect of small tool displacements will amplify machining errors and affect product consistency. Utility Model Content

[0004] The purpose of this invention is to provide a precision tool adjustment mechanism for centerless lathes, which solves the problem of poor tool accuracy after adjustment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centerless lathe precision tool adjustment mechanism, comprising a fixed base, a slider slidably connected inside the fixed base, a guide block fixedly connected to the outer side of the slider, the guide block being slidably connected to the fixed base, a threaded rod rotatably connected inside the fixed base, a motor fixedly mounted on the upper end of the fixed base, a mounting base fixedly connected to the outer side of the slider, the mounting base contacting the fixed base, a tool body contacting the outer side of the mounting base, a guide wheel rotatably connected inside the mounting base, the guide wheel being slidably connected to the fixed base, a rotating shaft fixedly connected inside the guide wheel, the rotating shaft being connected to the fixed base via a bearing, and a limit mechanism provided on the mounting base.

[0006] Preferably, a guide rod is fixedly connected inside the fixed base, and the guide rod is slidably connected to the guide block. Through the design of the guide rod, the guide block can be limited.

[0007] Preferably, a retaining ring is fixedly connected to the outer side of the threaded rod, and the retaining ring contacts the inner wall of the fixed seat. The design of the retaining ring can prevent displacement of the threaded rod when it rotates.

[0008] Preferably, the output end of the motor is rotatably connected to the fixed base, and the output end of the motor is fixedly connected to the threaded rod. Through the design of the motor, the threaded rod can be driven to rotate.

[0009] Preferably, the limiting mechanism has a sliding block inside, the mounting base has a sliding block inside, a connecting block is fixedly connected to the outside of the sliding block, the connecting block is slidably connected to the fixed base, a locking block is fixedly connected to the side of the connecting block away from the sliding block, a locking groove is opened inside the tool body, a rotating rod is connected inside the mounting base through a bearing, a knob is fixedly connected to the upper end of the rotating rod, and the knob is rotatably connected to the mounting base. Through the design of the limiting mechanism, the tool body can be easily disassembled during maintenance.

[0010] Preferably, the locking block contacts the mounting base, and the locking block is slidably connected to the slot. Through the design of the locking block, it can limit the movement of the tool body.

[0011] Preferably, the outer side of the rotating rod is provided with positive and negative threads, and the rotating rod is connected to the moving block by threads. Through the design of the rotating rod, two moving blocks can be moved at the same time.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model innovatively designs a motor-driven threaded rod and slider adjustment mechanism, which, together with a guide block and guide rod forming a dual guiding system, ensures that the movement trajectory of the tool body is precise and controllable. At the same time, the addition of a guide wheel auxiliary mounting seat stabilizes the displacement and effectively suppresses vibration interference. The triple stabilization mechanism works together to significantly improve the tool position adjustment accuracy and completely solves the problem of insufficient accuracy after tool adjustment on a centerless lathe.

[0013] 2. This utility model features an innovative design with a linkage structure between the moving block, the locking block, and the rotating rod. Rotating the rotating rod drives the moving block to move axially, causing the locking block to disengage from the tool body's slot, achieving rapid unlocking. This structure achieves precise control through threaded transmission, making operation simple and labor-saving. It solves the problem of traditional tool disassembly and assembly requiring tools and being time-consuming and labor-intensive, significantly improving tool replacement efficiency. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 A three-dimensional view of the local structure; Figure 3 For the present utility model Figure 2 Enlarged frontal sectional view of a local structure; Figure 4 For the present utility model Figure 3 Enlarged view of part A of the structure.

[0015] In the diagram: 1. Fixed base; 2. Slider; 21. Guide block; 22. Guide rod; 23. Threaded rod; 24. Retaining ring; 25. Motor; 3. Mounting base; 31. Tool body; 32. Guide wheel; 33. Rotating shaft; 4. Limiting mechanism; 41. Moving block; 42. Connecting block; 43. Locking block; 44. Locking groove; 45. Rotating rod; 46. Knob. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 A centerless lathe precision tool adjustment mechanism includes a fixed base 1, a slider 2 slidably connected inside the fixed base 1, a guide block 21 fixedly connected to the outside of the slider 2, the guide block 21 being slidably connected to the fixed base 1, a guide rod 22 fixedly connected inside the fixed base 1, the guide rod 22 being slidably connected to the guide block 21, the guide rod 22 being designed to limit the guide block 21, a threaded rod 23 rotatably connected inside the fixed base 1, a retaining ring 24 fixedly connected to the outside of the threaded rod 23, the retaining ring 24 contacting the inner wall of the fixed base 1, the retaining ring 24 being designed to prevent displacement of the threaded rod 23 during rotation. Please see Figure 2-4 A motor 25 is fixedly installed on the upper end of the fixed base 1. The output end of the motor 25 is rotatably connected to the fixed base 1. The output end of the motor 25 is fixedly connected to the threaded rod 23. Through the design of the motor 25, the threaded rod 23 can be driven to rotate. A mounting base 3 is fixedly connected to the outside of the slider 2. The mounting base 3 contacts the fixed base 1. The outer side of the mounting base 3 contacts the tool body 31. A guide wheel 32 is rotatably connected inside the mounting base 3. The guide wheel 32 is slidably connected to the fixed base 1. A rotating shaft 33 is fixedly connected inside the guide wheel 32. The rotating shaft 33 is connected to the fixed base 1 through a bearing. A limit mechanism 4 is provided on the mounting base 3.

[0018] Please see Figure 2-4The limiting mechanism 4 has a sliding connection to a moving block 41 inside, and the mounting base 3 has a sliding connection to a moving block 41 inside. A connecting block 42 is fixedly connected to the outside of the moving block 41. The connecting block 42 is slidably connected to the mounting base 1. A locking block 43 is fixedly connected to the side of the connecting block 42 away from the moving block 41. A locking groove 44 is opened inside the tool body 31. The locking block 43 contacts the mounting base 3 and is slidably connected to the locking groove 44. The locking block 43 can limit the movement of the tool body 31 through its design. A rotating rod 45 is connected inside the mounting base 3 through a bearing. The rotating rod 45 has positive and negative threads on its outside. The rotating rod 45 is threadedly connected to the moving block 41. The rotating rod 45 can move both moving blocks 41 at the same time. A knob 46 is fixedly connected to the upper end of the rotating rod 45. The knob 46 is rotatably connected to the mounting base 3. The limiting mechanism 4 makes it easy to disassemble the tool body 31 during maintenance.

[0019] The specific implementation process of this utility model is as follows: When in use, by starting the motor 25, the output end of the motor 25 drives the threaded rod 23 to rotate, so that the threaded rod 23 and the slider 2 have threaded movement, thereby causing the slider 2 to move on the threaded rod 23, and causing the slider 2 to drive the guide block 21 to move on the guide rod 22, so that the slider 2 can maintain precision when moving, and thus the slider 2 can maintain precision when driving the tool body 31 through the mounting base 3; By rotating the knob 46, the knob 46 drives the rotating rod 45 to rotate, causing the rotating rod 45 to move in a threaded motion with the moving block 41. This causes the moving block 41 to move the connecting block 42, which in turn moves the locking block 43. The locking block 43 then slides in the slot 44, so that the locking block 43 is no longer locked to the tool body 31, allowing the tool body 31 to be disassembled and repaired.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision tool adjustment mechanism for a centerless lathe, comprising a fixed base (1), characterized in that: The fixed seat (1) is internally connected to a slider (2), and the slider (2) is externally connected to a guide block (21). The guide block (21) is slidably connected to the fixed seat (1). The fixed seat (1) is internally connected to a threaded rod (23). The upper end of the fixed seat (1) is fixedly mounted with a motor (25). The slider (2) is externally connected to a mounting seat (3). The mounting seat (3) is in contact with the fixed seat (1). The external side of the mounting seat (3) is in contact with a tool body (31). The mounting seat (3) is internally connected to a guide wheel (32). The guide wheel (32) is slidably connected to the fixed seat (1). The guide wheel (32) is internally connected to a rotating shaft (33). The rotating shaft (33) is connected to the fixed seat (1) via a bearing. The mounting seat (3) is provided with a limit mechanism (4).

2. The centerless lathe precision tool adjustment mechanism according to claim 1, characterized in that: The fixed base (1) is internally fixedly connected to a guide rod (22), which is slidably connected to the guide block (21).

3. The centerless lathe precision tool adjustment mechanism according to claim 1, characterized in that: A retaining ring (24) is fixedly connected to the outer side of the threaded rod (23), and the retaining ring (24) contacts the inner wall of the fixed seat (1).

4. The centerless lathe precision tool adjustment mechanism according to claim 1, characterized in that: The output end of the motor (25) is rotatably connected to the fixed base (1), and the output end of the motor (25) is fixedly connected to the threaded rod (23).

5. The centerless lathe precision tool adjustment mechanism according to claim 1, characterized in that: The limiting mechanism (4) has a sliding block (41) inside, the mounting base (3) has a sliding block (41) inside, the outer side of the sliding block (41) has a connecting block (42) fixedly connected, the connecting block (42) is slidably connected to the fixed base (1), the side of the connecting block (42) away from the sliding block (41) has a locking block (43) fixedly connected, the inside of the tool body (31) has a locking groove (44), the inside of the mounting base (3) has a rotating rod (45) connected by a bearing, the upper end of the rotating rod (45) has a knob (46) fixedly connected, and the knob (46) is rotatably connected to the mounting base (3).

6. The centerless lathe precision tool adjustment mechanism according to claim 5, characterized in that: The card block (43) contacts the mounting base (3), and the card block (43) is slidably connected to the card slot (44).

7. A centerless lathe precision tool adjustment mechanism according to claim 5, characterized in that: The rotating rod (45) is provided with positive and negative threads on its outer side, and the rotating rod (45) is connected to the moving block (41) by threads.

Images