A chip removal device for a numerically controlled machine tool

Abstract

The utility model discloses a numerical control machine tool chip removal machine, including the chip removal's frame, be equipped with the helical shaft of through servo motor drive on the base, be equipped with the helical blade on the axial direction of helical shaft, the tail groove is equipped with and is embedded with flexible scraping strip along the helical direction interval of its helical blade, and the scraping strip is higher than the outer wall of helical blade, and is in butt joint with the inner wall of the bottom of machine body. A numerical control machine tool chip removal machine, the design replaceable "flexible scraping strip", specifically in the tail groove of helical blade outer edge, press / insert polyurethane scraping strip, and the scraping strip is slightly higher than the blade, so that can butt joint with the bottom of machine body, can avoid the phenomenon of jamming and the jammed helical blade in use, and can remove the layer of waste chip that appears at the bottom of helical chip removal machine.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, specifically to a chip conveyor for CNC machine tools. Background Technology

[0002] A chip conveyor for machine tools is a machine used to remove waste chips during machine tool processing. Chip conveyors are classified into chain-plate type, scraper type, spiral type, and permanent magnet type, and are essential auxiliary machinery in machine tool processing. Among them, spiral chip conveyors are prone to clogging and jamming of the spiral blades, especially long, ribbon-like, clump-like, or hard chips. These chips become entangled or accumulate between the spiral blades, causing a sudden increase in torque and current, ultimately triggering overload protection or burning out the motor. While leaving a certain gap between the spiral blades and the bottom can avoid these problems, a layer of waste chips tends to accumulate at the bottom of the spiral chip conveyor, making complete removal difficult.

[0003] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a chip conveyor for CNC machine tools, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a chip conveyor for CNC machine tools, including a chip conveying base, on which a spiral shaft driven by a servo motor is provided, spiral blades are provided axially along the spiral shaft, and the spiral blades are provided with tail grooves spaced apart along their spiral direction and embedded with flexible scrapers, the scrapers being higher than the outer wall of the spiral blades and abutting against the inner wall of the bottom of the machine body.

[0008] Preferably, a servo motor is fixedly connected to one side of the base, and a coupling is fixedly connected to the output end of the servo motor. The coupling drives the screw shaft through a chain gear structure.

[0009] Preferably, the flexible scraper is a polyurethane scraper, and the scraper extends 1.5 mm above the spiral blade.

[0010] Preferably, the spiral blade is cut into multiple independent segments and movably connected by connectors on the spiral shaft. The connectors are square clips installed at the ends of the spiral shaft and slots of appropriate size installed at the ends of adjacent spiral shafts.

[0011] Preferably, the helical blade is located in the middle of the base, and the two sides of the base are high and gradually sink towards the middle, and can be directly connected to the helical blade.

[0012] (III) Beneficial Effects

[0013] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: This utility model is a CNC machine tool chip conveyor with a replaceable "flexible scraper". Specifically, a tail groove is opened on the outer edge of the spiral blade, and a polyurethane scraper is pressed / embedded. The scraper is slightly higher than the blade so that it can abut against the bottom of the machine body. This can not only avoid the phenomenon of clogging and jamming of the spiral blade during use, but also remove the layer of waste chips that appear at the bottom of the spiral chip conveyor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the spiral blade of this utility model;

[0016] Figure 3 This is a schematic diagram of the disassembly of the spiral blade of this utility model;

[0017] Figure 4 This is a separate schematic diagram of the spiral blade of this utility model.

[0018] In the diagram: 1. Base; 2. Inclined guide plate; 3. Spiral blade; 4. Motor; 5. Chip removal pipe; 6. Spiral shaft; 7. Tail groove; 8. Flexible scraper; 9. Clamping block. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown: A chip conveyor for CNC machine tools includes a chip conveying base 1. A servo motor 4 is fixedly connected to one side of the base 1. A coupling is fixedly connected to the output end of the servo motor 4. The coupling is connected to a spiral shaft 6 through a conventional chain gear structure (two gears arranged flush and driven by a chain). Spiral blades 3 are provided on the axial direction of the spiral shaft 6.

[0021] See appendix Figure 2-4 As shown, the improvement in this embodiment lies in the design of a replaceable flexible scraper 8. Specifically, a tail groove 7 is opened on the outer edge of the spiral blade 3, and a polyurethane scraper (hardness 80A) is clipped / embedded. The scraper is slightly higher than the blade (about 1.5mm), so that it can abut against the inner wall of the bottom of the machine body. Moreover, the flexible scraper 8 can achieve slight deformation after being squeezed, avoiding rigid compression and blockage during the chip removal process of the spiral blade 3.

[0022] A further design involves cutting the spiral blade 3 into multiple independent segments of the spiral shaft 6, and connecting them movably with the help of connectors on the spiral shaft 6. This allows the spiral blade 3 to be disassembled and used or replaced when it is partially damaged. After a period of use, when the spiral blade 3 shows wear in some areas, it can be replaced locally.

[0023] The other end of the machine base 1 is fixedly connected to the chip removal pipe 5 via a connecting pipe. The spiral blade 3 is located in the middle of the machine base 1. The two sides of the machine base 1 are high and gradually sink towards the middle, so that the waste chips leaking from the machine tool can be uniformly discharged by the spiral blade 3 after falling into the machine base 1 at the edge.

[0024] The above-described embodiments are provided for illustrative purposes. Based on the above description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification; its protection scope must be determined according to the claims.

Claims

1. A chip conveyor for CNC machine tools, comprising a chip conveying base, characterized in that: The base is provided with a spiral shaft driven by a servo motor. The spiral shaft has spiral blades along its axial direction. The spiral blades are spaced apart with tail grooves along their spiral direction and have flexible scrapers embedded in them. The scrapers are higher than the outer wall of the spiral blades and abut against the inner wall of the bottom of the machine body.

2. The chip conveyor for CNC machine tools according to claim 1, characterized in that: A servo motor is fixedly connected to one side of the base, and a coupling is fixedly connected to the output end of the servo motor. The coupling drives the screw shaft through a chain gear structure.

3. A chip conveyor for CNC machine tools according to claim 1, characterized in that: The flexible scraper is a polyurethane scraper, and the scraper extends 1.5 mm above the spiral blade.

4. A chip conveyor for CNC machine tools according to claim 1, characterized in that: The spiral blade is cut into multiple independent segments by means of connectors on the spiral shaft. The connectors are square blocks installed at the ends of the spiral shaft and slots of appropriate size installed at the ends of adjacent spiral shafts.

5. A chip conveyor for CNC machine tools according to claim 1, characterized in that: The helical blade is located in the middle of the base, and the two sides of the base are high and gradually sink towards the middle, and can be directly connected to the helical blade.

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