Chip removal structure of numerical control machine tool

By using an L-shaped plate driven by a servo motor and an adjustable blower hood, the problem of fixed airflow direction of CNC machine tool fans is solved, enabling effective chip dispersion and collection of irregular workpieces, thus improving the machining effect of CNC machine tools.

CN223762777UActive Publication Date: 2026-01-06NANJING ZHONGDE MASCH TOOL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520284609.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-01-06
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

The fixed airflow direction of the internal fan of the CNC machine tool means that some debris cannot be blown away when operating on irregular workpieces and inclined grooves, and remains in the workpiece, affecting the tool processing.

Method used

The L-shaped plate driven by a servo motor and the adjustable blower hood, combined with the tilted CNC machine tool box and baffle, enable multi-angle adjustment of the air direction and effective dispersion of debris. The rectangular box and filter plate are used for debris collection and oil filtration.

Benefits of technology

It effectively disperses debris from workpieces of different shapes, ensuring a clean machining surface, and achieves efficient debris collection and oil filtration, thereby improving the machining efficiency and quality of CNC machine tools.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223762777U_ABST
    Figure CN223762777U_ABST
Patent Text Reader

Abstract

The utility model discloses a numerical control machine tool chip removal structure which comprises a driving unit, the driving unit comprises a numerical control machine tool box and a fan fixedly connected to the top of the numerical control machine tool box, the side wall of the fan is fixedly communicated with a hose, one side of the numerical control machine tool box is fixedly connected with a fixing base, and a servo motor is fixedly installed on the inner wall of the fixing base; and the chip removal unit comprises a ventilation pipe fixedly communicated to the top of the numerical control machine tool box, the output end of the servo motor is fixedly connected with an L-shaped plate, one side of the numerical control machine tool box is provided with an arc-shaped groove, one end of the L-shaped plate penetrates through the arc-shaped groove, and one side of the L-shaped plate is fixedly connected with a conveying pipe penetrating through the L-shaped plate. The air outlet direction of the air blowing cover can be adjusted through the servo motor, so that the air blowing cover blows air to the surface of a workpiece from multiple angles, residual chips on the workpiece are blown away, and a good chip removal effect is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of chip removal structure technology, and in particular to a chip removal structure for CNC machine tools. Background Technology

[0002] CNC machine tools are short for numerical control machine tools. They are automated machine tools equipped with a program control system. CNC lathes are one of the most widely used CNC machine tools. They are mainly used for cutting the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft or disc parts. They can also perform grooving, drilling, reaming, boring, and other operations. Various control signals are sent by the CNC device to control the machine tool's movements and automatically process the parts according to the shape and size required by the drawings.

[0003] When machining metal workpieces, CNC machine tools generate a large amount of debris. Some CNC machine tools are equipped with fans to blow away the debris. However, the fans blow air in a fixed direction. When dealing with irregular workpieces or when creating inclined grooves, some debris cannot be blown away and remains inside the workpiece, affecting the machining process. Therefore, a chip removal structure for CNC machine tools is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current chip removal structure of CNC machine tools, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a chip removal structure for CNC machine tools, which is suitable for solving the problem that when the air blower inside the CNC machine tool blows air in a fixed direction, some chips cannot be blown away and remain inside the workpiece when facing some irregular workpieces or when opening inclined grooves, thus affecting the tool processing.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a chip removal structure for a CNC machine tool, comprising:

[0008] The drive unit includes a CNC machine tool housing and a fan fixedly connected to the top of the CNC machine tool housing. A flexible hose is fixedly connected to the side wall of the fan. A fixed base is fixedly connected to one side of the CNC machine tool housing. A servo motor is fixedly installed on the inner wall of the fixed base.

[0009] The chip removal unit includes a ventilation pipe fixedly connected to the top of the CNC machine tool housing. An L-shaped plate is fixedly connected to the output end of the servo motor. An arc-shaped groove is opened on one side of the CNC machine tool housing. One end of the L-shaped plate passes through the arc-shaped groove. A conveying pipe that penetrates the L-shaped plate is fixedly connected to one side of the L-shaped plate. One end of the flexible hose is fixedly connected to one end of the conveying pipe. A blower is fixedly connected to the end of the conveying pipe.

[0010] As a preferred embodiment of the chip removal structure for a CNC machine tool according to this utility model, an arc-shaped plate located below the arc-shaped groove is fixedly connected to the inner wall of the CNC machine tool housing, and a gap is left between the arc-shaped plate and the blower hood.

[0011] As a preferred embodiment of the chip removal structure for a CNC machine tool described in this utility model, a threaded rod penetrating the blower is threadedly connected to one side of the blower shroud, and a baffle is rotatably connected to the end of the threaded rod, the baffle being slidably disposed inside the blower shroud.

[0012] As a preferred embodiment of the chip removal structure for a CNC machine tool according to this utility model, the bottom of the inner cavity of the CNC machine tool housing is inclined, a sliding groove is provided on one side of the CNC machine tool housing, the sliding groove is connected to the bottom of the inner cavity of the CNC machine tool housing, and a rectangular box is slidably arranged inside the sliding groove.

[0013] As a preferred embodiment of the chip removal structure for CNC machine tools described in this utility model, a drain pipe is fixedly connected to one side of the rectangular box, a valve is sleeved on the wall of the drain pipe, and a filter plate is fixedly connected to the inner wall of the rectangular box.

[0014] As a preferred embodiment of the chip removal structure for a CNC machine tool described in this utility model, the bottom of the inner cavity of the CNC machine tool housing is fixedly connected to multiple equally spaced baffles, each of which is arranged at an angle.

[0015] The beneficial effects of this utility model are as follows: the L-shaped plate is driven by a servo motor to swing along the arc groove, thereby adjusting the direction of the air blower and allowing the blower to blow air onto the workpiece surface from multiple angles, so as to blow away the residual debris on the workpiece and achieve a good chip removal effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1This is a schematic diagram of the overall structure of the chip removal structure for CNC machine tools proposed in this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the CNC machine tool housing proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the delivery pipe and the blower hood proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the rectangular box and the filter plate proposed in this utility model. Attached image description:

[0022] 100. Drive unit; 101. CNC machine tool housing; 102. Fan; 103. Hose; 104. Mounting base; 105. Servo motor; 200. Chip removal unit; 201. Ventilation duct; 202. L-shaped plate; 203. Arc groove; 204. Conveying pipe; 205. Blower hood; 206. Arc plate; 207. Threaded rod; 208. Baffle; 209. Slide groove; 210. Rectangular box; 211. Drain pipe; 212. Filter plate; 213. Baffle bar. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Example

[0028] Reference Figures 1-4 As an embodiment of the present invention, a chip removal structure for a CNC machine tool is provided, comprising: a drive unit 100 and a chip removal unit 200;

[0029] The drive unit 100 includes a CNC machine tool housing 101 and a fan 102 fixedly connected to the top of the CNC machine tool housing 101. A flexible hose 103 is fixedly connected to the side wall of the fan 102. A fixed seat 104 is fixedly connected to one side of the CNC machine tool housing 101. A servo motor 105 is fixedly installed on the inner wall of the fixed seat 104.

[0030] The chip removal unit 200 includes a ventilation pipe 201 fixedly connected to the top of the CNC machine tool housing 101, an L-shaped plate 202 fixedly connected to the output end of the servo motor 105, an arc groove 203 opened on one side of the CNC machine tool housing 101, one end of the L-shaped plate 202 passing through the arc groove 203, a conveying pipe 204 passing through the L-shaped plate 202 fixedly connected to one side of the L-shaped plate 202, one end of the flexible hose 103 fixedly connected to one end of the conveying pipe 204, and a blower hood 205 fixedly connected to the end of the conveying pipe 204.

[0031] The CNC machine tool housing 101 is equipped with a door on the front side. When a metal workpiece is placed inside the CNC machine tool housing 101, the door is closed and the fan 102 is turned on. The fan 102 is used to deliver air into the hose 103. The hose 103 is relatively long and can be bent. The servo motor 105 can drive the L-shaped plate 202 to move along the arc groove 203. The air in the hose 103 enters the blower hood 205 through the delivery pipe 204, and the air can be discharged from the bottom of the blower hood 205. When the metal workpiece is being processed, the blower hood 205 can blow air from above the workpiece, so that the airflow is downward and blows away the debris on the surface of the workpiece. The excess air in the CNC machine tool housing 101 is discharged through the ventilation pipe 201.

[0032] The servo motor 105 drives the L-shaped plate 202 to deflect along the arc groove 203, thereby adjusting the direction of the air blowing of the blower hood 205 so that the blower hood 205 is tilted to blow away some of the debris on the surface of the workpiece with special shape, so as to achieve a good chip removal effect and ensure the cleanliness of the workpiece processing surface.

[0033] In addition, an arc plate 206 located below the arc groove 203 is fixedly connected to the inner wall of the CNC machine tool housing 101, and a gap is left between the arc plate 206 and the blower hood 205.

[0034] The blower cover 205 will not collide with the arc plate 206 during the deflection process. The arc length of the arc plate 206 is greater than the length of the arc groove 203. The arc plate 206 is used to shield the arc groove 203 to prevent debris from splashing into the arc groove 203.

[0035] Furthermore, a threaded rod 207 is threadedly connected to one side of the blower cover 205, and a baffle 208 is rotatably connected to the end of the threaded rod 207. The baffle 208 is slidably disposed inside the blower cover 205.

[0036] The side wall of the baffle 208 is in contact with the inner wall of the blower hood 205. By rotating the threaded rod 207, the baffle 208 can be moved inside the blower hood 205. The baffle 208 blocks the air flowing inside the blower hood 205, thereby adjusting the blowing range of the blower hood 205. This allows the blowing range to be adjusted according to the length of the workpiece, making the blowing range more concentrated when processing small workpieces, thus improving the chip removal effect.

[0037] Furthermore, the bottom of the inner cavity of the CNC machine tool housing 101 is inclined, and a slide groove 209 is provided on one side of the CNC machine tool housing 101. The slide groove 209 is connected to the bottom of the inner cavity of the CNC machine tool housing 101. A rectangular box 210 is slidably arranged inside the slide groove 209. A drain pipe 211 is fixedly connected to one side of the rectangular box 210. A valve is sleeved on the pipe wall of the drain pipe 211. A filter plate 212 is fixedly connected to the inner wall of the rectangular box 210.

[0038] Debris blown off the workpiece falls to the bottom of the inner cavity of the CNC machine tool housing 101. Then, the debris slides down the inclined surface at the bottom of the inner cavity of the CNC machine tool housing 101 into the rectangular box 210. A handle is fixedly connected to one side of the rectangular box 210, and the rectangular box 210 can be pulled out from the slide groove 209 to collect the debris inside the rectangular box 210. When the CNC machine tool housing 101 is filled with liquids such as lubricating oil or coolant during the machining process, the filter plate 212 can filter the oil, so that the debris is intercepted on the upper surface of the filter plate 212. The drain pipe 211 is located at the bottom of the filter plate 212. By opening the valve of the drain pipe 211, the oil in the rectangular box 210 can be discharged.

[0039] Specifically, the bottom of the inner cavity of the CNC machine tool housing 101 is fixedly connected to multiple equally spaced baffles 213, each baffle 213 being arranged at an angle.

[0040] The baffle 213 is used to guide the chips. When the chips slide down the inclined surface at the bottom of the inner cavity of the CNC machine tool housing 101 into the rectangular box 210, some of the chips will be guided by the baffle 213, causing the chips to move towards the middle of the rectangular box 210. This allows the chips to slide evenly into the rectangular box 210, so as to avoid excessive chips accumulating in a local area of ​​the rectangular box 210.

[0041] During use, the position of the baffle 208 inside the blower hood 205 is adjusted by rotating the threaded rod 207, so as to adjust the range of air blown by the blower hood 205 according to the length of the workpiece. After the metal workpiece is placed in the CNC machine tool box 101, the box door is closed and the blower 102 is turned on. The blower 102 delivers air into the conveying pipe 204 through the hose 103. The air in the conveying pipe 204 is discharged through the blower hood 205. When the metal workpiece is being processed, the blower hood 205 can blow air from above the workpiece, so that the airflow flows downward and blows away the debris on the surface of the workpiece. The L-shaped plate 202 is moved along the arc groove 203 by the servo motor 105, thereby adjusting the direction of air blowing by the blower hood 205, so that the blower hood 205 is tilted to blow air, so as to blow away the debris on the surface of some special-shaped workpieces, so as to achieve a good chip removal effect.

[0042] Debris blown off the workpiece falls into the rectangular box 210. The filter plate 212 filters the oil, trapping the debris on its upper surface. The oil in the rectangular box 210 can be drained by opening the drain pipe 211 valve. After processing, the rectangular box 210 can be pulled out of the chute 209 to recover the debris inside.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A chip removal structure for a numerically controlled machine tool, characterized in that, Include: Drive unit (100), comprising a numerical control machine box (101) and a fan (102) fixedly connected on the top of the numerical control machine box (101), the side wall of the fan (102) is fixedly connected with a hose (103), one side of the numerical control machine box (101) is fixedly connected with a fixed seat (104), the inner wall of the fixed seat (104) is fixedly installed with a servo motor (105); Chip removal unit (200), comprising a ventilation pipe (201) fixedly connected on the top of the numerical control machine box (101), the output end of the servo motor (105) is fixedly connected with an L-shaped plate (202), one side of the numerical control machine box (101) is provided with an arc slot (203), one end of the L-shaped plate (202) passes through the arc slot (203), one side of the L-shaped plate (202) is fixedly connected with a conveying pipe (204) penetrating through the L-shaped plate (202), one end of the hose (103) is fixedly connected with one end of the conveying pipe (204), and the end of the conveying pipe (204) is fixedly connected with a blowing cover (205).

2. A chip removal structure for a numerically controlled machine tool according to claim 1, characterized in that: The inner wall of the numerical control machine box (101) is fixedly connected with an arc-shaped plate (206) located below the arc-shaped slot (203), and a gap is left between the arc-shaped plate (206) and the blowing cover (205).

3. A chip removal structure for a numerically controlled machine tool according to claim 2, characterized in that: One side of the blowing cover (205) is threadedly connected with a threaded rod (207) penetrating through the blowing cover (205), the end of the threaded rod (207) is rotatably connected with a baffle (208), and the baffle (208) is slidably arranged in the blowing cover (205).

4. The chip removal structure of claim 2, wherein: The bottom of the inner cavity of the numerical control machine box (101) is inclinedly arranged, the numerical control machine box (101) is provided with a chute (209) on one side, the chute (209) is communicated with the bottom of the inner cavity of the numerical control machine box (101), and the rectangular box (210) is slidably arranged in the chute (209).

5. A chip removal structure for a numerically controlled machine tool according to claim 4, characterized in that: One side of the rectangular box (210) is fixedly connected with a drain pipe (211), the valve is sleeved on the pipe wall of the drain pipe (211), and the inner wall of the rectangular box (210) is fixedly connected with a filter plate (212).

6. A chip removal structure for a numerically controlled machine tool according to claim 4, characterized in that: The bottom of the inner cavity of the numerical control machine box (101) is fixedly connected with a plurality of equidistantly distributed blocking strips (213), and each blocking strip (213) is arranged in an inclined manner.