Chip removal base structure for numerical control machine tool

By combining a guide support rod, a rotating motor, and a chain-type chip conveyor, the problem of low efficiency and difficulty in disassembling the chip conveyor screw of CNC machine tools is solved, achieving efficient chip collection and convenient installation and disassembly operations.

CN224254853UActive Publication Date: 2026-05-19NINGBO CHUANTIAN PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO CHUANTIAN PRECISION MASCH CO LTD
Filing Date
2025-04-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The chip conveyor screws in existing CNC machine tools are inefficient and inconvenient to install and disassemble.

Method used

The device employs a combination structure consisting of a guide support rod, a rotating motor, a chain-type chip conveyor, and a U-shaped chip conveying screw. The guide support rod transports waste chips to the chip conveying screw, which is then driven by the rotating motor to the chain-type chip conveyor. The chain-type chip conveyor collects the waste chips, and a pin facilitates the separation of the chip conveying screw from the connecting shaft, enabling convenient disassembly.

Benefits of technology

It improves chip removal efficiency, simplifies the installation and disassembly process, and enhances the stability and maintainability of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224254853U_ABST
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Abstract

The utility model discloses a chip removal base structure for a numerical control machine tool. The chip removal base structure comprises a base frame, the interior of the guide supporting rod is hollow; the two chip removal screws are arranged on the left side and the right side of the guide supporting rod correspondingly, and the section of one end of each chip removal screw is in a U shape. The two rotating motors are fixedly connected with the outer side surface of the base frame; the chain type chip removal machine is arranged below one ends of the two chip removal screw rods; one end of the chain type chip removal machine is communicated with the lower end of the chain type chip removal pipe, and the cross section of the chain type chip removal pipe is high in the left and low in the right; one end of the connecting shaft is connected with the rotating motor, and the connecting shaft is clamped with one end of the chip removal screw; the connecting shaft is connected with the chip removal screw rod through the bolt; the chip conveying openings are formed in the left side and the right side of the guide supporting rod respectively, and the chip conveying openings are formed above the chip removal screw rods and correspond to the chip removal screw rods. The utility model has the beneficial effects that the working efficiency is improved, and the mounting and dismounting are more convenient.
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Description

Technical Field

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

[0002] The chips from CNC machine tools are discharged downwards, and then the screw pushes the machining chips to move, and finally transport them to the outside of the machine for collection and processing. However, the existing chip discharge screws are not very efficient and are inconvenient to install and disassemble. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of existing technologies, such as low working efficiency and inconvenient installation and disassembly, and provides a chip removal base structure for CNC machine tools that improves working efficiency and facilitates installation and disassembly.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A chip removal base structure for CNC machine tools, comprising:

[0006] The base frame is placed on the outer side of the chip removal base;

[0007] A guide support rod is placed inside the base frame. The inside of the guide support rod is hollowed out, and the lower end of the guide support rod is fixedly connected to the inner side of the base frame.

[0008] Two chip removal screws are respectively placed on the left and right sides of the guide support rod, and the cross-sectional shape of one end of the chip removal screw is U-shaped;

[0009] Two rotating motors are placed on the outer side of the base frame. The rotating motors are fixedly connected to the outer side of the base frame. Each rotating motor corresponds to a chip removal screw.

[0010] A chain-type chip conveyor is placed inside a base frame, with the chain-type chip conveyor positioned below one end of two chip conveying screws, and the chain-type chip conveyor is connected to the base frame.

[0011] A chain-type chip conveyor is placed on the outside of the base frame. One end of the chain-type chip conveyor is connected to the lower end of the chain-type chip conveyor. The cross-sectional shape of the chain-type chip conveyor is higher on the left and lower on the right.

[0012] A connecting shaft is connected at one end to a rotating motor, and the other end of the connecting shaft corresponds to the U-shaped end of the chip removal screw. The connecting shaft is engaged with one end of the chip removal screw.

[0013] A pin is placed at the connection between the connecting shaft and the chip removal screw, and the connecting shaft is connected to the chip removal screw via the pin.

[0014] Several chip conveying ports are respectively placed on the left and right sides of the guide support rod. The chip conveying ports are connected to the interior of the guide support rod and are positioned above and corresponding to the chip discharge screw.

[0015] In use, the base frame is installed at the bottom of the CNC machine tool, and connected to the upper CNC machine tool with a guide support rod. When the CNC machine tool produces waste chips, the guide support rod discharges the waste chips through multiple chip conveying ports to the top of two chip removal screws. Then, the chip removal screw driven by the rotating motor slowly rotates the waste chips to the chain chip conveyor. The chain chip conveyor then drops the waste chips into the collection box through the chain chip removal pipe for collection and transfer. After the chip removal screw has been running for a long time, it will inevitably become less smooth. At this time, the pin can be removed, and the chip removal screw can be separated from the connecting shaft. During installation, the U-shaped locking between the chip removal screw and the connecting shaft makes it easy to lock. When the chip removal screw is locked, it will not cause greater damage due to the rigid connection, thus improving work efficiency and making installation and disassembly more convenient.

[0016] Preferably, the inner bottom surface of the base frame is provided with two chip collection grooves, and the chip removal screw corresponds to each chip collection groove. The cross-sectional shape of the chip collection groove is V-shaped, and the chip removal screw is located at the lowest surface of the V-shape of the chip collection groove. The chip conveying port is located above one side of the V-shape of the chip collection groove, and the chip collection groove is connected to the chain chip conveyor. The V-shape of the chip collection groove facilitates the guidance of waste chips into the position of the chip removal screw for centralized operation.

[0017] Preferably, a chip baffle is provided on one side of the V-shaped chip collection groove. The chip baffle is fixedly connected to the inner side of the chip collection groove and is positioned below the chip conveying port and between the two chip conveying ports. The chip baffle can block some flying chips coming out of the chip conveying port.

[0018] Preferably, the bottom surface of the V-shaped chip collection trough is provided with a placement groove, the chip removal screw is placed in the placement groove, and a support plate is provided in the placement groove. The cross-sectional shape of the support plate corresponds to the cross-sectional shape of the chip removal screw. The support plate is fixedly connected to the inner side of the placement groove and communicates with the chain-type chip conveyor. The corresponding structure of the support plate and the chip removal screw facilitates their interaction in crushing larger waste chips, making transportation convenient.

[0019] Preferably, the pallet has extension plates on both sides, one side of which is fixedly connected to the side of the pallet, and the other side of which connects to the V-shaped sides of the chip collection groove. The extension plates can guide the chips into the conveying range of the chip discharge screw.

[0020] Preferably, the lower end face of the chain-type chip conveyor is provided with a vertical support, the upper end of which is fixedly connected to the lower end face of the chain-type chip conveyor. A horizontal support is provided on the side of the vertical support, perpendicular to the vertical support. One end of the horizontal support is fixedly connected to the vertical support, and the other end is fixedly connected to the outer side of the lower end of the chain-type chip conveyor. The vertical and horizontal supports facilitate support of the chain-type chip conveyor with a drop, improving stability.

[0021] Preferably, the lower end of the vertical support is provided with a support screw and an adjusting nut. The upper end of the support screw is threaded to the lower end face of the vertical support, and the adjusting nut is threaded to the support screw, with its upper end face contacting the lower end face of the vertical support. The support screw and adjusting nut help adjust the drop distance of the chain-type chip conveyor.

[0022] Preferably, the inner bottom surface of the pallet is lower at one end near the chain chip conveyor than at the other end. This height difference allows the waste chips between the pallet and the chip conveying screw to automatically slide onto the chain chip conveyor.

[0023] The beneficial effects of this utility model are: improved work efficiency and easier installation and disassembly; the V-shaped chip collection trough facilitates the guidance of waste chips into the chip conveying screw for centralized operation; the chip baffle can block some flying chips coming out of the chip conveying port; the corresponding structure of the support plate and the chip conveying screw facilitates mutual crushing of some larger waste chips, facilitating transportation; the extension plate can guide the chips into the transportation range of the chip conveying screw; the vertical and horizontal supports facilitate the support of the chain chip conveying pipe with a drop, improving stability; the support screw and adjusting nut can help adjust the drop distance of the chain chip conveying pipe; this height difference allows the waste chips between the support plate and the chip conveying screw to automatically slide down onto the chain chip conveyor. Attached Figure Description

[0024] Figure 1 This is the front view of this utility model;

[0025] Figure 2 yes Figure 1 A magnified view of detail A;

[0026] Figure 3 This is a cross-sectional view of the main view of this utility model;

[0027] Figure 4 yes Figure 3 A magnified view of detail B;

[0028] Figure 5 yes Figure 3 A magnified view of detail C;

[0029] Figure 6 This is a top view of the present invention;

[0030] Figure 7 yes Figure 6 A magnified view of detail D.

[0031] In the diagram: 1. Base frame, 2. Guide support rod, 3. Chip conveying screw, 4. Rotating motor, 5. Chain-type chip conveyor, 6. Chain-type chip conveying pipe, 7. Connecting shaft, 8. Pin, 9. Chip conveying port, 10. Chip collection trough, 11. Chip baffle plate, 12. Placement slot, 13. Support plate, 14. Extension plate, 15. Vertical support, 16. Horizontal support, 17. Support screw, 18. Adjusting nut. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figure 1 , Figure 3 , Figure 6 and Figure 7 In one embodiment, a chip removal base structure for a CNC machine tool includes:

[0034] Base frame 1 is placed on the outer side of the chip removal base;

[0035] The guide support rod 2 is placed inside the base frame 1. The inside of the guide support rod 2 is hollowed out, and the lower end of the guide support rod 2 is fixedly connected to the inner side of the base frame 1.

[0036] Two chip removal screws 3 are placed on the left and right sides of the guide support rod 2, respectively. The cross-sectional shape of one end of the chip removal screw 3 is U-shaped.

[0037] Two rotating motors 4 are both placed on the outer side of the base frame 1. The rotating motors 4 are fixedly connected to the outer side of the base frame 1. The rotating motors 4 correspond one-to-one with the chip removal screws 3.

[0038] The chain chip conveyor 5 is placed inside the base frame 1. The chain chip conveyor 5 is located below one end of the two chip conveying screws 3 and is connected to the base frame 1.

[0039] The chain-type chip conveyor 6 is placed on the outside of the base frame 1. One end of the chain-type chip conveyor 5 is connected to the lower end of the chain-type chip conveyor 6. The cross-sectional shape of the chain-type chip conveyor 6 is high on the left and low on the right.

[0040] Connecting shaft 7, one end of which is connected to rotating motor 4, and the other end of connecting shaft 7 corresponds to the U-shaped end of chip discharge screw 3, and connecting shaft 7 is snapped into one end of chip discharge screw 3;

[0041] Pin 8 is placed at the connection between connecting shaft 7 and chip removal screw 3. Connecting shaft 7 is connected to chip removal screw 3 through pin 8.

[0042] Several chip conveying ports 9 are respectively placed on the left and right sides of the guide support rod 2. The chip conveying ports 9 are connected to the interior of the guide support rod 2. The chip conveying ports 9 are placed above the chip discharge screw 3 and correspond to the chip discharge screw 3.

[0043] like Figure 3 and Figure 5 As shown, two chip collection grooves 10 are provided on the inner bottom surface of the base frame 1. The chip discharge screw 3 corresponds to the chip collection groove 10 one by one. The cross-sectional shape of the chip collection groove 10 is V-shaped. The chip discharge screw 3 is placed on the lowest surface of the V-shape of the chip collection groove 10. The chip conveying port 9 is placed above one side of the V-shape of the chip collection groove 10. The chip collection groove 10 is connected to the chain chip conveyor 5.

[0044] like Figure 3 and Figure 5 As shown, a chip baffle 11 is provided on one side of the V-shaped chip collection groove 10. The chip baffle 11 is fixedly connected to the inner side of the chip collection groove 10. The chip baffle 11 is placed below the chip conveying port 9 and between the two chip conveying ports 9.

[0045] like Figure 5 and Figure 6 As shown, the bottom surface of the chip collection trough 10V is provided with a placement groove 12, the chip discharge screw 3 is placed in the placement groove 12, and a support plate 13 is provided in the placement groove 12. The cross-sectional shape of the support plate 13 corresponds to the cross-sectional shape of the chip discharge screw 3. The support plate 13 is fixedly connected to the inner side of the placement groove 12, and the support plate 13 is connected to the chain chip conveyor 5.

[0046] like Figure 5 As shown, extension plates 14 are provided on both sides of the pallet 13. One side of the extension plate 14 is fixedly connected to the side of the pallet 13, and the other side of the extension plate 14 is connected to the V-shaped sides of the chip collection groove 10.

[0047] like Figure 1 As shown, a vertical support 15 is provided on the lower end face of the chain chip conveyor 6. The upper end of the vertical support 15 is fixedly connected to the lower end face of the chain chip conveyor 6. A horizontal support 16 is provided on the side of the vertical support 15. The horizontal support 16 is perpendicular to the vertical support 15. One end of the horizontal support 16 is fixedly connected to the vertical support 15, and the other end of the horizontal support 16 is fixedly connected to the outer side of the lower end of the chain chip conveyor 6.

[0048] like Figure 2 As shown, the lower end of the vertical bracket 15 is provided with a support screw 17 and an adjusting nut 18. The upper end of the support screw 17 is threadedly connected to the lower end face of the vertical bracket 15, and the adjusting nut 18 is threadedly connected to the support screw 17. The upper end face of the adjusting nut 18 is in contact with the lower end face of the vertical bracket 15.

[0049] like Figure 5 As shown, the inner bottom surface of the pallet 13 is lower at one end near the chain chip conveyor 5 than at the other end of the pallet 13.

[0050] In use, the base frame 1 is installed at the bottom of the CNC machine tool, and the guide support rod 2 connects it to the upper CNC machine tool. When the CNC machine tool produces waste chips, the guide support rod 2 discharges the waste chips through multiple chip conveying ports 9 into the chip removal groove 10, and the chip baffle 11 blocks the flying chips. Then, the chips enter the tray 13 in the placement groove 12 along the extension plate 14. Next, the chip removal screw 3 driven by the rotating motor 4 slowly moves the waste chips to the chain chip conveyor 5. The chain chip conveyor 5 then drops the waste chips into the collection box through the chain chip removal pipe 6 for collection and transfer. The chip removal screw 3 will inevitably have some wear after running for a long time. When there is a problem, the pin 8 can be removed, and the chip removal screw 3 can be separated from the connecting shaft 7. During installation, the U-shaped locking between the chip removal screw 3 and the connecting shaft 7 makes it easy to lock in place. When the chip removal screw 3 is locked in place, it will not cause greater damage due to the rigid connection. The height of the collection box may vary. The height of the chain chip removal pipe 6 can be adjusted using the support screw 17 and adjusting nut 18 on the vertical bracket 15 to reduce the flying of waste chips. The horizontal bracket 16 on the vertical bracket 15 can effectively stabilize the chain chip removal pipe 6, thereby improving work efficiency and making installation and disassembly more convenient.

Claims

1. A chip removal base structure for CNC machine tools, characterized in that, include: The base frame (1) is placed on the outer side of the chip removal base; A guide support rod (2) is placed inside the base frame (1). The inside of the guide support rod (2) is hollowed out, and the lower end of the guide support rod (2) is fixedly connected to the inner side of the base frame (1). Two chip removal screws (3) are placed on the left and right sides of the guide support rod (2), respectively. The cross-sectional shape of one end of the chip removal screw (3) is U-shaped. Two rotating motors (4) are placed on the outer side of the base frame (1). The rotating motors (4) are fixedly connected to the outer side of the base frame (1). The rotating motors (4) correspond one-to-one with the chip removal screws (3). A chain chip conveyor (5) is placed inside a base frame (1). The chain chip conveyor (5) is placed below one end of two chip conveying screws (3). The chain chip conveyor (5) is connected to the base frame (1). The chain-type chip conveyor (6) is placed on the outside of the base frame (1). One end of the chain-type chip conveyor (5) is connected to the lower end of the chain-type chip conveyor (6). The cross-sectional shape of the chain-type chip conveyor (6) is high on the left and low on the right. The connecting shaft (7) is connected at one end to the rotating motor (4), and the other end of the connecting shaft (7) corresponds to the U-shaped end of the chip discharge screw (3). The connecting shaft (7) is engaged with one end of the chip discharge screw (3). A pin (8) is placed at the connection between the connecting shaft (7) and the chip removal screw (3), wherein the connecting shaft (7) is connected to the chip removal screw (3) through the pin (8); Several chip conveying ports (9) are respectively placed on the left and right sides of the guide support rod (2). The chip conveying ports (9) are connected to the interior of the guide support rod (2). The chip conveying ports (9) are placed above the chip discharge screw (3) and correspond to the chip discharge screw (3).

2. The chip removal base structure for CNC machine tools according to claim 1, characterized in that, The base frame (1) has two chip collection grooves (10) on its inner bottom surface. The chip discharge screw (3) corresponds to the chip collection groove (10) one by one. The cross-sectional shape of the chip collection groove (10) is V-shaped. The chip discharge screw (3) is placed on the lowest surface of the V-shape of the chip collection groove (10). The chip conveying port (9) is placed above one side of the V-shape of the chip collection groove (10). The chip collection groove (10) is connected to the chain chip conveyor (5).

3. The chip removal base structure for CNC machine tools according to claim 2, characterized in that, A chip baffle (11) is provided on one side of the V-shaped chip collection groove (10). The chip baffle (11) is fixedly connected to the inner side of the chip collection groove (10). The chip baffle (11) is placed below the chip conveying port (9) and between the two chip conveying ports (9).

4. A chip removal base structure for CNC machine tools according to claim 2, characterized in that, The bottom surface of the chip collection groove (10) is provided with a placement groove (12), the chip discharge screw (3) is placed in the placement groove (12), the placement groove (12) is provided with a support plate (13), the cross-sectional shape of the support plate (13) corresponds to the cross-sectional shape of the chip discharge screw (3), the support plate (13) is fixedly connected to the inner side of the placement groove (12), and the support plate (13) is connected to the chain chip conveyor (5).

5. A chip removal base structure for CNC machine tools according to claim 4, characterized in that, The pallet (13) is provided with extension plates (14) on both sides. One side of the extension plate (14) is fixedly connected to the side of the pallet (13), and the other side of the extension plate (14) is connected to the V-shaped sides of the chip collection groove (10).

6. A chip removal base structure for CNC machine tools according to claim 1, characterized in that, The lower end face of the chain chip conveyor (6) is provided with a vertical support (15), the upper end of the vertical support (15) is fixedly connected to the lower end face of the chain chip conveyor (6), and a horizontal support (16) is provided on the side of the vertical support (15). The horizontal support (16) is perpendicular to the vertical support (15), one end of the horizontal support (16) is fixedly connected to the vertical support (15), and the other end of the horizontal support (16) is fixedly connected to the outer side of the lower end of the chain chip conveyor (6).

7. A chip removal base structure for CNC machine tools according to claim 6, characterized in that, The lower end of the vertical bracket (15) is provided with a support screw (17) and an adjusting nut (18). The upper end of the support screw (17) is threaded to the lower end face of the vertical bracket (15), and the adjusting nut (18) is threaded to the support screw (17). The upper end face of the adjusting nut (18) is in contact with the lower end face of the vertical bracket (15).

8. A chip removal base structure for CNC machine tools according to claim 4, characterized in that, The inner bottom surface of the pallet (13) is lower at one end near the chain chip conveyor (5) than at the other end of the pallet (13).