Intelligent chip conveyor for metal chip machine tools and control method thereof

Abstract

The present application relates to a kind of intelligent chip removal device for metal chip machine tool, including the chip conveyor belt connected by conveying drive device in chip removal channel, one end of chip removal channel is at horizontal low, and is provided with chip inlet, the other end is at high, and is provided with chip outlet, the outer wall of chip removal channel at horizontal low is equipped with opening, flow box with flow guide channel is set at opening, the height of flow box is consistent with the height of opening, and the upper edge of opening is higher than the height of chip mixture in chip removal channel;I stage filter screen and II stage filter screen are sequentially provided in the flow guide channel of flow box, and circulating pump is provided at the top of flow box, and the working part of the bottom of circulating pump is inserted into flow guide channel.The chip removal device has the characteristics of automatic, efficient, timely cleaning of cutting fluid debris, avoids chip removal device blockage, and is a new type of intelligent chip removal device for machine tool.

Description

Technical Field

[0001] This invention relates to an intelligent chip conveyor and its control method for metal cutting machine tools, belonging to the technical field of machine tool accessories. Background Technology

[0002] Metal cutting machine tools generate a large amount of chips during processing, especially in the processing of non-ferrous metals. A large amount of chips will be suspended in the cutting fluid. In addition, a small amount of chips will adhere to the chip conveyor scraper due to the viscosity of the cutting fluid. If they are not cleaned in time and effectively, it will cause the cutting fluid to flow poorly in the chip conveyor. In severe cases, it is necessary to stop the machine to clean the chip conveyor, or even cause the chip conveyor to become blocked or damaged, reducing the efficiency of the machine tool. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide an intelligent chip conveyor and its control method for metal cutting machine tools. The chip conveyor is an intelligent chip conveyor that automatically, efficiently, and promptly cleans chips from the cutting fluid and avoids clogging.

[0004] To solve the above problems, the specific technical solution created by the present invention is as follows: An intelligent chip conveyor for a metal cutting machine tool includes a chip conveyor belt connected to a chip conveying drive device in a chip conveying channel. One end of the chip conveying channel is at a low horizontal position and is provided with a chip inlet, while the other end is at a high position and is provided with a chip outlet. The outer wall of the chip conveying channel at the low horizontal position has an opening, and a flow box with a flow guiding channel is provided at the opening. The height of the flow box is the same as the height of the opening, and the upper edge of the opening is higher than the height of the chip mixture in the chip conveying channel. A first-stage filter and a second-stage filter are sequentially provided in the flow guiding channel of the flow box. A circulation pump is provided at the top of the flow box, and the working part of the bottom of the circulation pump is inserted into the flow guiding channel.

[0005] The first-stage filter and the second-stage filter have the same structure, which is a box shape with one side open. The filter holes are evenly arranged on the three sides and the bottom. The top cover is equipped with a handle, and the openings of the first-stage filter and the second-stage filter face the inlet direction of the chip mixture in the flow guide channel.

[0006] The diameter of the filter holes on the Class I filter screen is larger than the diameter of the filter holes on the Class II filter screen.

[0007] An inlet flow sensor is installed at the inlet of the flow guiding channel, and an outlet flow sensor is installed at the outlet. The inlet flow sensor and the outlet flow sensor are connected together to the filter system cover plate installed on the flow box.

[0008] The flow guiding channel is a U-shaped structure with one loop.

[0009] The chip conveyor belt has chip scrapers evenly spaced along the running direction, and a soft brush is provided at the chip outlet, with the soft brush contacting the bottom of the return chip scraper.

[0010] A method for controlling the above-mentioned intelligent chip conveyor includes the following steps:

[0011] 1) The conveyor drive device drives the chip conveyor belt to move at a constant speed, and most of the chips are discharged through the scraper on it;

[0012] 2) When the program determines that a large amount of chips are generated during processing, the circulation pump is started, and most of the chip mixture in the chip discharge channel enters the flow guide channel;

[0013] 3) The cutting fluid mixture passes through the first-stage filter and the second-stage filter in sequence to filter out the fine chips that are suspended in the cutting fluid;

[0014] 4) When the inlet flow sensor or outlet flow sensor detects that the flow rate at the corresponding inlet or outlet is less than the set flow rate value, an alarm will be issued, and the debris inside the Stage I and Stage II filters needs to be cleaned manually.

[0015] 5) The chips adhering to the surface of the scraper 4 are removed by the soft brush 5 installed at the chip discharge port during the operation of the chip conveyor.

[0016] The present application adopts the above structure and has the following advantages:

[0017] 1. This application addresses the problem of removing stubborn chips remaining in the cutting fluid and adhering to the scraper plate during metal cutting machine processing. It utilizes an intelligent filtration system to filter suspended chips from the cutting fluid and a brush to remove chips adhering to the scraper plate surface. This solves the problem of traditional chip conveyors failing to remove suspended chips and chips adhering to the scraper plate surface, reducing the risk of chip conveyor clogging and damage. It can be widely applied to chip conveyors in metal processing machine tools that easily generate chips.

[0018] 2. This application installs a single-sided open I and II two-stage filter screen in the intelligent filtration system, which can effectively filter debris suspended in the cutting fluid. Flow sensors are installed at the inlet and outlet of the cutting fluid in the intelligent filtration system. The data difference between the two flow sensors can be set in the machine tool CNC system. When the difference exceeds the set range, an automatic prompt signal is issued, and the worker can clean the accumulated debris in time to avoid clogging of the filtration system.

[0019] 3. This application uses a soft brush to scrape off the debris adhering to the surface of the scraper at the chip outlet, effectively removing deposited debris, reducing the probability of debris remaining on the scraper of the chip conveyor, and avoiding blockage or damage to the chip conveyor due to debris accumulation;

[0020] 4. This application uses a servo motor to drive the chip conveyor belt, which can control the operation of the chip conveyor and automatic filtration system according to the specific processing conditions, making it flexible and adaptable. Attached Figure Description

[0021] Figure 1 This is an exploded view of an intelligent chip conveyor.

[0022] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0023] Figure 3 This is a cross-sectional view of the brush section.

[0024] Figure 4 This is a schematic diagram of the structure of a Class I filter.

[0025] Figure 5 This is a diagram showing the appearance of a brush. Detailed Implementation

[0026] like Figures 1 to 3 As shown, an intelligent chip conveyor for a metal cutting machine tool includes a chip conveyor belt 3 connected to a chip removal channel 2 via a transmission drive device 1. The transmission drive device 1 uses a servo motor to drive the chip conveyor belt 3, and the chip removal speed can be adjusted according to the amount of chips generated. One end of the chip removal channel 2 is at a low horizontal position and has a chip inlet, while the other end is at a high position and has a chip outlet. The outer wall of the chip removal channel 2 at the low horizontal position has an opening, and a flow box 11 with a flow guiding channel 6 is installed at the opening. The height of the flow box 11 is the same as the height of the opening, and the upper edge of the opening is higher than the height of the chip mixture in the chip removal channel 2. A first-stage filter 12 and a second-stage filter 13 are sequentially installed in the flow guiding channel 6 of the flow box 11. A circulation pump 14 is installed at the top of the flow box 11, and the working part of the bottom of the circulation pump 14 is inserted into the flow guiding channel 6. The first-stage filter 12 and the second-stage filter 13 can adopt a plug-and-play structure for easy installation and removal.

[0027] The first-stage filter 12 and the second-stage filter 13 have the same structure, as shown below. Figure 4 As shown, the structure is a box-shaped container with an opening on one side. Evenly distributed filter holes are provided on three sides and the bottom. A handle is provided on the top cover. The openings of the primary filter 12 and the secondary filter 13 face the inlet direction of the cutting fluid in the flow guide channel 6, thus not only collecting chips but also ensuring smooth flow of the cutting fluid. The diameter of the filter holes on the primary filter 12 is larger than that on the secondary filter 13. The primary filter 12 intercepts most of the floating debris in the cutting fluid, while the secondary filter 13 further intercepts smaller debris suspended in the cutting fluid.

[0028] An inlet flow sensor 15 is installed at the inlet of the flow guiding channel 6, and an outlet flow sensor 16 is installed at the outlet. The inlet flow sensor 15 and the outlet flow sensor 16 are connected to the filter system cover plate 8 installed on the flow box 11.

[0029] The flow guiding channel 6 is a U-shaped structure with a single fold, which saves space in the flow box 11 and facilitates processing.

[0030] like Figure 3 and Figure 5 As shown, the chip conveyor belt 3 has chip scrapers 4 evenly spaced along the running direction, and a soft brush 5 is provided at the chip outlet. The soft brush 5 contacts the bottom of the returning chip scraper 4 and automatically removes the residual chips stuck on the chip scraper, effectively solving the problem of blockage caused by chips during machine tool processing, which can cause damage to the chip conveyor in severe cases.

[0031] A method for controlling the above-mentioned intelligent chip conveyor, characterized by comprising the following steps:

[0032] 1) The conveyor drive device 1 drives the chip conveyor belt 3 to move at a constant speed, and the scraper 4 on it discharges most of the chips.

[0033] 2) When the program determines that there are a large number of chips in the machining process, the circulation pump 14 is started, and most of the chip mixture in the chip discharge channel 2 enters the flow guide channel 6;

[0034] 3) The chip mixture is passed through the first-stage filter screen 12 and the second-stage filter screen 13 in sequence to filter out the fine chips floating in the liquid;

[0035] 4) When the inlet flow sensor 15 or the outlet flow sensor 16 senses that the flow rate at the corresponding inlet or outlet is less than the set flow rate value, an alarm will be issued, and the debris inside the Class I filter screen 12 and Class II filter screen 13 needs to be cleaned manually.

[0036] 5) The chips adhering to the surface of the scraper 4 are removed by the soft brush 5 installed at the chip discharge port during the operation of the chip conveyor.

[0037] The method of controlling the intelligent chip conveyor of this application is to start the circulation pump 14 to increase the flow rate of the liquid in the flow guide channel 6 and filter the suspended chips in the cutting fluid. At the same time, the soft brush 5 removes the chips adhering to the surface of the scraper plate 4, thereby achieving the purpose of removing most of the chips in the cutting fluid.

Claims

1. An intelligent chip conveyor for a metal cutting machine tool, comprising a chip conveyor belt (3) connected to a chip conveying drive device (1) within a chip conveying channel (2), wherein one end of the chip conveying channel (2) is at a low horizontal position and is provided with a chip inlet, and the other end is at a high position and is provided with a chip outlet, characterized in that: The outer wall of the chip removal channel (2) at a low horizontal position has an opening. A flow box (11) with a flow guide channel (6) is set at the opening. The height of the flow box (11) is the same as the height of the opening, and the upper edge of the opening is higher than the height of the chip mixture in the chip removal channel (2). The flow guide channel (6) is a U-shaped structure with a guide plate and a single fold. A first-stage filter screen (12) and a second-stage filter screen (13) are arranged in sequence in the flow guide channel (6) of the flow box (11). The first-stage filter screen (12) and the second-stage filter screen (13) are arranged on both sides of the guide plate. A circulation pump (14) is set at the top of the flow box (11). The working part of the bottom of the circulation pump (14) is inserted into the flow guide channel (6). The first-stage filter (12) and the second-stage filter (13) have the same structure. The structure is a box shape with one side open. There are uniformly arranged filter holes on three sides and one bottom surface. The top cover is equipped with a handle. The openings of the first-stage filter (12) and the second-stage filter (13) face the inlet direction of the chip mixture in the flow guide channel (6). When the circulation pump (14) is started, most of the chip mixture in the chip discharge channel (2) enters the flow guide channel (6). The chip mixture passes through the first-stage filter (12) and the second-stage filter (13) in sequence. After filtering the fine chips floating in the cutting fluid, the mixture flows back to the chip discharge channel (2).

2. The intelligent chip conveyor for metal cutting machine tools as described in claim 1, characterized in that: The diameter of the filter holes on the Class I filter (12) is larger than the diameter of the filter holes on the Class II filter (13).

3. The intelligent chip conveyor for metal cutting machine tools as described in claim 1, characterized in that: An inlet flow sensor (15) is provided at the inlet of the flow guiding channel (6), and an outlet flow sensor (16) is provided at the outlet. The inlet flow sensor (15) and the outlet flow sensor (16) are connected together to the filter system cover plate (8) provided on the flow box (11).

4. The intelligent chip conveyor for metal cutting machine tools as described in claim 1, characterized in that: The chip conveyor belt (3) is equipped with chip scrapers (4) evenly spaced along the running direction, and a soft brush (5) is provided at the chip outlet. The soft brush (5) contacts the bottom of the return chip scraper (4).

5. A control method for an intelligent chip conveyor as described in any one of claims 1 to 4, characterized in that... Includes the following steps: 1) The conveyor drive device (1) drives the chip conveyor belt (3) to move at a constant speed, and discharges most of the chips through the scraper (4) on it; 2) When the program determines that a large amount of chips are generated during processing, the circulation pump (14) is started, and most of the chip mixture in the chip discharge channel (2) enters the flow guide channel (6); 3) The cutting fluid mixture passes through the first-stage filter screen (12) and the second-stage filter screen (13) in sequence to filter out the fine chips suspended in the cutting fluid; 4) When the inlet flow sensor (15) or outlet flow sensor (16) senses that the flow rate at the corresponding inlet or outlet is less than the set flow rate value, an alarm will be issued, and the chips inside the Class I filter screen (12) and Class II filter screen (13) need to be cleaned manually. 5) The chips adhering to the surface of the scraper (4) are removed by the soft brush (5) installed at the chip discharge port during the operation of the chip conveyor.

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