Numerical control lathe

Abstract

The utility model discloses a numerical control lathe which comprises a lathe body, a spindle box, a tool apron and a feeding mechanism, a chip collecting hopper is arranged on the lathe body, a connecting seat is arranged on the lathe body, the connecting seat is obliquely arranged relative to the lathe body, the connecting seat extends to the chip collecting hopper, and chips enter the chip collecting hopper under the guiding action of the connecting seat; a motor and a spindle are arranged in the spindle box; a plurality of turning tools are arranged on the tool apron in a circumferential array mode and arranged on the outer side of the tool apron. A first rotary driving assembly is arranged on one side of the tool apron, the feeding mechanism comprises a first feeding assembly and a second feeding assembly, the first feeding assembly is arranged on the connecting seat, and material scraps can automatically slide down along the connecting seat under the action of gravity and can be efficiently guided to the collecting hopper without additional power. The retention time of the scraps in the machine tool is greatly shortened, the scraps are prevented from being stacked and wound on key parts of the machine tool, continuous and stable operation of the numerical control machine tool is effectively guaranteed, and the overall machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a CNC lathe and belongs to the field of lathe technology. Background Technology

[0002] CNC lathes and turning centers are high-precision, high-efficiency automated machine tools. Equipped with multi-station turrets or power turrets, these machines possess a wide range of machining capabilities, capable of processing complex workpieces such as straight cylinders, inclined cylinders, arcs, and various threads, grooves, and worm gears. They also feature linear interpolation, circular interpolation, and various compensation functions, demonstrating excellent economic benefits in the mass production of complex parts.

[0003] During the turning process, CNC lathes generate chips. With the diversification of machining materials (such as the increasing application of difficult-to-cut materials like high-strength alloy steel and titanium alloys) and the growth in demand for complex parts machining, the chips generated by CNC lathes are not only numerous but also more complex in shape. Chips of different forms, such as filaments, ribbons, and fragments, are intertwined, posing a great challenge to chip removal.

[0004] Current CNC lathe chip removal systems have limitations in design, with narrow chip removal channels and unreasonable structures, which makes it easy for chips to accumulate and entangle inside the machine tool, such as in critical parts like the machine tool guideways, lead screws, and tool holders.

[0005] Currently, cleaning primarily relies on manual labor. Operators need to frequently stop the machine and use tools such as hooks and brushes to carefully remove the debris one by one from the narrow and complex spaces inside the machine tool. This manual cleaning method is not only extremely labor-intensive, requiring operators to expend a great deal of physical strength and time, severely impacting production efficiency, but also exposes operators to safety risks such as cuts from sharp debris and burns from hot debris. Furthermore, frequent manual cleaning disrupts normal processing flows, causing production rhythm disruptions and preventing continuous, efficient automated production. This results in a significant waste of human and material resources, hindering the high-quality development of the manufacturing industry. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a CNC lathe that can allow material scraps to fall directly into the material scrap collection hopper, reducing manual cleaning.

[0007] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0008] A CNC lathe includes a bed, a spindle box, a tool holder, and a feed mechanism. The bed has a chip collection hopper and a connecting seat, which is inclined relative to the bed and extends to the chip collection hopper. Chips are guided into the chip collection hopper by the connecting seat. The spindle box houses a motor and a spindle. Driven by the motor, the spindle rotates to rotate the workpiece. The tool holder has a circumferential array of multiple cutting tools positioned on its outer side for direct cutting of the workpiece. A first rotary drive assembly is located on one side of the tool holder, at least for driving the tool holder to rotate so that different cutting tools align with the workpiece for turning. The feed mechanism includes a first feed assembly and a second feed assembly located on one side of the tool holder. The first feed assembly is mounted on the connecting seat and at least for driving the tool holder to move inclined along the connecting seat, causing the tool holder to move closer to or away from the spindle radially. The second feed assembly at least for driving the tool holder closer to or away from the spindle axially.

[0009] Furthermore, a support base is provided on one side of the first rotary drive assembly, and the first rotary drive assembly is detachably connected to the support base. A first sliding seat is provided on one side of the support base, and the support base is slidably connected to the first sliding seat. Under the drive of the second feed assembly, the support base slides along the first sliding seat. The first sliding seat is slidably connected to the connecting seat through a linear guide and a slider, and under the drive of the first feed assembly, the first sliding seat slides along the connecting seat.

[0010] Furthermore, a synchronous encoder is connected to the main shaft.

[0011] Furthermore, the spindle is provided with a gripper assembly, which is used at least to clamp the workpiece to fix it in place.

[0012] Furthermore, the bed frame is equipped with a protective cover, and the protective cover is equipped with a protective door.

[0013] Furthermore, a baffle is provided on the side of the connecting seat away from the main shaft. The baffle is at least used to block the material debris and prevent the material debris from flying out.

[0014] Compared with the prior art, the advantages of this utility model include:

[0015] 1) The CNC lathe provided by this utility model utilizes gravity to allow material chips to automatically slide down along the connecting seat, efficiently guiding the chips to the collection hopper without additional power. Compared with traditional chip removal methods, this significantly reduces the residence time of chips inside the machine tool, preventing chip accumulation and entanglement in critical parts of the machine tool, effectively ensuring the continuous and stable operation of the CNC lathe and improving overall machining efficiency. By optimizing the chip removal path, chips can be smoothly discharged, significantly reducing the frequency and workload of manual cleaning. Timely chip removal avoids interference with the cutting process of the tool and workpiece.

[0016] 2) The CNC lathe provided by this utility model has multiple tool arrays set on the outside of the tool holder, which can directly turn the workpiece, thus improving the machining accuracy compared with the traditional tool magazine;

[0017] 3) The CNC lathe provided by this utility model has a feed mechanism that drives the tool holder to move along the linear guide, which improves the accuracy of the linear movement of the tool holder and thus improves the machining accuracy of the lathe. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of a CNC lathe provided in a typical embodiment of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of a CNC lathe provided in a typical embodiment of this utility model;

[0021] Figure 3 This is a rear view of a CNC lathe provided in a typical embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the tool holder provided in a typical embodiment of this utility model;

[0023] Explanation of reference numerals in the attached drawings: 1. Bed; 2. Chip collection hopper; 3. Connecting seat; 4. Spindle box; 5. Tool holder; 6. First sliding seat; 7. Linear guide; 8. Support seat; 9. Protective cover; 10. Protective door; 11. Baffle; 12. Lathe tool. Detailed Implementation

[0024] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0025] like Figure 1 , Figure 2 As shown, this utility model discloses a CNC lathe, which includes a bed 1, a spindle box 4, a tool holder 5, and a feed mechanism. A chip collection hopper 2 is provided on the bed 1, and a chip collection box is placed in the chip collection hopper 2 for collecting chip.

[0026] A connecting seat 3 is provided on the machine bed 1, and the connecting seat 3 is inclined relative to the machine bed 1. The connecting seat 3 extends to the chip collection hopper 2, and the chips enter the chip collection hopper 2 under the guidance of the connecting seat 3. Gravity allows the chips to automatically slide down along the connecting seat 3, efficiently guiding the chips to the collection hopper without additional power. Compared with traditional chip removal methods, this significantly reduces the residence time of chips inside the machine tool, preventing chips from accumulating and tangling in critical parts of the machine tool, effectively ensuring the continuous and stable operation of the CNC lathe, and improving overall machining efficiency. By optimizing the chip removal path, chips can be smoothly discharged, significantly reducing the frequency and workload of manual cleaning. Timely chip removal avoids interference with the cutting process of the tool and workpiece.

[0027] Based on the above, in order to block the material debris and prevent it from flying out, a baffle 11 is provided on the side of the connecting seat 3 away from the main shaft.

[0028] The spindle housing 4 houses a motor and a spindle. Driven by the motor, the spindle rotates to rotate the workpiece. Preferably, to improve the machining accuracy of the lathe, a synchronous encoder is connected to the spindle. Specifically, the spindle is equipped with a gripper assembly, which is used to clamp the workpiece to fix it. In this embodiment, the gripper assembly includes a three-jaw chuck, which is used to clamp the workpiece.

[0029] like Figure 4 As shown, a plurality of cutting tools 12 are arranged in a circumferential array on the tool holder 5. The cutting tools are located on the outer side of the tool holder 5 to directly cut the workpiece. A first rotary drive assembly is located on one side of the tool holder 5. The rotary drive assembly is used to drive the tool holder 5 to rotate so that different cutting tools are aligned with the workpiece to perform turning. When a certain cutting tool is needed, the first rotary drive assembly drives the tool holder 5 to rotate so that the required cutting tool is aligned with the workpiece to perform turning.

[0030] The feeding mechanism includes a first feed assembly and a second feed assembly disposed on one side of the tool holder 5. The first feed assembly is disposed on the inclined connecting seat 3. During CNC lathe machining, the cutting force generated when the tool cuts the workpiece is large, which causes the machine tool components to bear reaction forces, easily inducing elastic deformation and affecting machining accuracy. By disposing the first feed assembly on the inclined connecting seat 3, the mechanical characteristics of the inclined structure allow the component force generated by the cutting force to interact with the supporting force of the machine tool's own structure, thereby effectively offsetting some of the deformation caused by the cutting force. For example, under the action of the cutting force, the first feed assembly will be subjected to a horizontal component force, while the inclined connecting seat 3 can generate a reverse supporting component force through its tilt angle. These two forces cancel each other out, allowing the machine tool to maintain better rigidity and stability during machining. At the same time, when the machine tool components vibrate due to deformation under force, the relative position between the tool and the workpiece will change, resulting in machining dimensional deviations and increased surface roughness. By cooperating with the inclined connecting seat 3 and the first feed assembly to offset the deformation force, the amplitude and frequency of machine tool vibration can be significantly reduced. Stable machine tool operation ensures that the cutting tool accurately cuts the workpiece according to the preset trajectory, thereby improving machining accuracy, making the dimensions of the produced parts more in line with design requirements, and having better surface quality, thus meeting the machining needs of high-precision parts.

[0031] The first feed assembly is at least used to drive the tool holder 5 to move obliquely along the connecting seat 3, so that the tool holder 5 moves closer to or away from the spindle in the radial direction of the spindle; the second feed assembly is at least used to drive the tool holder 5 to move closer to or away from the spindle in the axial direction of the spindle.

[0032] In some implementations, a support base 8 is provided on one side of the first rotary drive assembly, and the first rotary drive assembly is detachably connected to the support base 8. A lifting ring is provided on the outside of the first rotary drive assembly to facilitate the removal of the first rotary assembly and the tool holder 5 from the bed 1 for cleaning and maintenance.

[0033] Based on the above, such as Figure 3 As shown, a first sliding seat 6 is provided on one side of the support base 8, and the support base 8 is slidably connected to the first sliding seat 6. Under the drive of the second feed assembly, the support base 8 slides along the first sliding seat to improve the accuracy of the linear movement of the tool holder 5. The first sliding seat is slidably connected to the connecting seat 3 through a linear guide 7 and a slider. Under the drive of the first feed assembly, the first sliding seat slides along the connecting seat 3. The tool holder 5 moves linearly along the linear guide 7, improving the accuracy of the linear movement of the tool holder 5, thereby improving the machining accuracy of the lathe.

[0034] In some implementation cases, the bed 1 is provided with a protective cover 9, and the protective cover 9 is provided with a protective door 10.

[0035] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A CNC lathe, characterized in that: include A bed (1) is provided with a scrap collection hopper (2) and a connecting seat (3) is provided on the bed (1). The connecting seat (3) is inclined relative to the bed (1) and extends to the scrap collection hopper (2). The scrap enters the scrap collection hopper (2) under the guidance of the connecting seat (3). The spindle box (4) is equipped with a motor and a spindle. The spindle rotates under the drive of the motor to drive the workpiece to rotate. Tool holder (5), on which a plurality of turning tools (12) are arranged in a circumferential array, the turning tools are arranged on the outside of the tool holder (5) to directly cut the workpiece; a first rotary drive assembly is arranged on one side of the tool holder (5), the rotary drive assembly is at least used to drive the tool holder (5) to rotate so that different turning tools are aligned with the workpiece to turn the workpiece; The feeding mechanism includes a first feeding component and a second feeding component disposed on one side of the tool holder (5). The first feeding component is disposed on the connecting seat (3). The first feeding component is at least used to drive the tool holder (5) to move obliquely along the connecting seat (3) so that the tool holder (5) moves closer to or away from the spindle in the radial direction of the spindle. The second feeding component is at least used to drive the tool holder (5) to move closer to or away from the spindle in the axial direction of the spindle.

2. A CNC lathe according to claim 1, characterized in that: A support base (8) is provided on one side of the first rotary drive assembly. The first rotary drive assembly is detachably connected to the support base (8). A first sliding seat (6) is provided on one side of the support base (8). The support base (8) and the first sliding seat (6) are slidably connected. Under the drive of the second feed assembly, the support base (8) slides along the first sliding seat (6). The first sliding seat (6) is slidably connected to the connecting seat (3) through a linear guide (7) and a slider. Under the drive of the first feed assembly, the first sliding seat (6) slides along the connecting seat (3).

3. A CNC lathe according to claim 1, characterized in that: A synchronous encoder is connected to the main shaft.

4. A CNC lathe according to claim 1, characterized in that: The spindle is provided with a gripper assembly, which is used at least to clamp the workpiece to fix it.

5. A CNC lathe according to claim 1, characterized in that: The bed (1) is provided with a protective cover (9), and the protective cover (9) is provided with a protective door (10).

6. A CNC lathe according to claim 1, characterized in that: The connecting seat (3) is provided with a baffle (11) on the side away from the main shaft. The baffle (11) is used to block the material debris and prevent the material debris from flying out.

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