A multi-functional numerical control machine tool

By introducing a control module with temperature sensors and flow metering components into a multi-functional CNC machine tool, the coolant spray is automatically adjusted and blockages are detected, solving the operational risks and inefficiencies caused by manual adjustment, and achieving precise flow rate control and blockage detection.

CN118254033BActive Publication Date: 2026-06-19NINGBO JULONG ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO JULONG ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2024-04-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing multi-functional CNC machine tools require manual adjustment of coolant flow rate and assessment of blockage in the collection components during drill bit operation, which poses operational risks and wastes manpower.

Method used

The system uses a temperature sensor and flow metering component combined with a control module to automatically adjust the flow rate of the coolant injection component and determine whether the collection component is blocked. It then uses the temperature difference and the value from the flow metering component to determine whether to further open the electromagnetic flow valve.

Benefits of technology

It enables automatic adjustment of the coolant injection assembly and detection of blockages in the collection assembly, reducing operational risks and improving the accuracy and efficiency of flow rate control.

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Abstract

This invention discloses a multifunctional CNC machine tool, comprising: a bed and a worktable; a collection component is provided on the worktable surface, the collection component including a first flow metering component and a first temperature sensor, the collection component being used to collect falling coolant; a rotating seat is mounted on the worktable, the rotating seat having multiple mounting surfaces; a drill bit is disposed on the mounting surface; a nozzle at the end of a coolant spraying component is directly opposite one of the drill bits; the coolant spraying component includes a second temperature sensor, a second flow metering component, and an electromagnetic flow valve, the control module determining whether to further open the electromagnetic flow valve based on the difference between the first and second temperature sensors, and simultaneously determining whether the collection component is blocked based on the value of the first flow metering component. This invention can automatically adjust the operation of the coolant spraying component and determine whether the collection component is blocked, eliminating the need for manual adjustment of the liquid flow rate and determination of whether the collection component is blocked.
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Description

Technical Field

[0001] This invention relates to the field of multifunctional CNC machine tools, and more specifically to a multifunctional CNC machine tool. Background Technology

[0002] Currently, with the rapid development of science and technology, the processing of large and medium-sized complex parts is becoming increasingly common and complex in fields such as aviation, aerospace, automotive machinery, agricultural machinery, and daily life applications. This requires machine tools to have functions such as turning, milling, boring, drilling, tapping, and countersinking.

[0003] When drill bits are in operation, coolant is needed for cooling and lubrication. Generally, the coolant is turned on directly without adjustment, resulting in a lot of waste. To avoid waste, the coolant flow rate needs to be adjusted manually based on experience, and the collector needs to be checked for blockages, which increases the operational risk and wastes manpower. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a multi-functional CNC machine tool. This solution overcomes the shortcomings of existing multi-functional CNC machine tools, which require coolant for cooling and lubrication of drill bits during operation. These tools necessitate manual adjustment of the coolant flow rate based on experience and assessment of whether the collection components are clogged, increasing operational risks and wasting manpower.

[0005] The technical solution adopted in this invention is as follows:

[0006] A multi-functional CNC machine tool, comprising:

[0007] A bed body, wherein a worktable is provided in the middle of the bed body; a collection component is provided on the table surface of the worktable, the collection component including a first flow metering component and a first temperature sensor, the collection component being used to collect falling coolant;

[0008] A rotating base, which is mounted on a workbench and has multiple mounting surfaces;

[0009] Multiple drill bits are disposed on the mounting surface;

[0010] A coolant injection assembly has a nozzle at its end facing one of the drill bits. The coolant injection assembly includes a second temperature sensor, a second flow metering assembly, and an electromagnetic flow valve. The first flow metering assembly, the first temperature sensor, the second temperature sensor, the second flow metering assembly, and the electromagnetic flow valve are all externally connected to a control module. The control module determines whether to further open the electromagnetic flow valve based on the difference between the first and second temperature sensors, and simultaneously determines whether the collection assembly is blocked based on the value of the first flow metering assembly.

[0011] This invention uses a control module to determine whether to further open the electromagnetic flow valve based on the difference between the first and second temperature sensors, thereby increasing the injection flow rate. At the same time, it uses the value of the first flow metering component to determine whether the collection hopper is blocked. This allows for automatic adjustment of the coolant injection component and determination of whether the collection component is blocked, eliminating the need for manual adjustment of the liquid flow rate and determination of whether the collection component is blocked, thus reducing operational risks.

[0012] Optionally, the collecting assembly includes a collecting hopper, which includes a hopper body and a feeding pipe. A rotating shaft is installed inside the hopper body, and multiple sets of blades are installed in the middle of the rotating shaft. The lower part of the rotating shaft is rotatably inserted into the feeding pipe.

[0013] Optionally, the first flow metering component is a tachometer, which is installed at the bottom of the rotating shaft and electrically connected to the control module.

[0014] Optionally, the top of the rotating shaft is provided with a downward-extending bucket-shaped collecting hole, the inner diameter of which gradually decreases from top to bottom.

[0015] Optionally, an upwardly protruding part is provided at the bottom below the bucket-shaped collection hole, and the first temperature sensor is installed in the protruding part.

[0016] Optionally, the protrusion is provided with a plurality of upwardly inclined holes on both sides.

[0017] Optionally, an elastic sheet is provided in the upper inclined hole, and an elastic bladder is provided at the lower end of the upper inclined hole.

[0018] The bottom of the rotating shaft is equipped with a bearing, and a fixing ring is connected to the outer side of the bearing via a connecting rod.

[0019] Optionally, the lower part of the bucket body is provided with a mounting groove for placing the fixing ring and connecting rod. Preferably, multiple connecting rods are configured to filter debris.

[0020] Beneficial effects

[0021] 1. The present invention uses a control module to determine whether to further open the electromagnetic flow valve based on the difference between the first temperature sensor and the second temperature sensor, and at the same time determines whether the collection hopper is blocked based on the value of the first flow metering component; it can automatically adjust the operation of the coolant injection component and determine whether the collection component is blocked.

[0022] 2. In this invention, the falling liquid impacts the blades, causing the rotating shaft to rotate. The rotational speed of the shaft is directly proportional to the water flow. The tachometer feeds back the rotational speed information to the control module. Simultaneously, the falling liquid enters the funnel-shaped collection hole and impacts the protrusion. After impacting the protrusion, it flows out obliquely upward through multiple upward-sloping holes. The liquid changes direction upon contact with the protrusion, and with the blocking effect of the elastic sheet, the liquid is buffered and mixed briefly in the protrusion, ensuring the accuracy of the second temperature sensor inside the protrusion. The kinetic energy and gravitational potential energy of the water flowing into the funnel-shaped collection hole, combined with the rotation of the rotating shaft itself, create centrifugal force, causing the liquid to flow out quickly through the upward-sloping holes. This prevents the liquid from accumulating in the protrusion for a long time. The lower end of the upward-sloping hole is equipped with an elastic bladder, which allows the elastic bladder to compress outward when the liquid flow rate is high, thereby expanding the inner diameter of the upward-sloping hole, accelerating the liquid flow through the upward-sloping hole, and improving the return flow efficiency.

[0023] 3. In this invention, multiple connecting rods are configured to filter debris. Attached image description:

[0024] Figure 1 This is a three-dimensional structural diagram of the multifunctional CNC machine tool according to Embodiment 1 of the present invention;

[0025] Figure 2 This is a perspective view of the collection bucket of the multifunctional CNC machine tool according to Embodiment 2 of the present invention;

[0026] Figure 3 This is a cross-sectional view of the rotating shaft of the multifunctional CNC machine tool according to Embodiment 2 of the present invention;

[0027] Figure 4 This is a logic flowchart of the control module of the multifunctional CNC machine tool according to Embodiment 1 of the present invention.

[0028] The labels for the attached figures are as follows:

[0029] 1. Blade, 2. First temperature sensor, 3. Mounting surface, 4. Bearing, 5. Connecting rod, 6. Fixing ring, 7. Collecting hopper, 8. Hopper body, 9. Feeding pipe, 10. Rotating shaft, 11. First flow metering component, 12. Hopper-shaped collecting hole, 13. Protrusion, 14. Upper inclined hole, 15. Elastic sheet, 16. Elastic bladder, 100. Bed, 200. Rotating seat, 300. Drill bit, 400. Coolant spraying component, 500. Worktable, 600. Collecting component, 700. Control module. Detailed implementation method:

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0031] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Example 1

[0033] The technical solution adopted in this invention is as follows:

[0034] like Figure 1 and Figure 4 As shown, the present invention discloses a multifunctional CNC machine tool, including: a bed 100, a rotary table 200, multiple drill bits 300 and a coolant spraying assembly 400, wherein a worktable 500 is provided in the middle of the bed; a collection assembly 600 is provided on the table surface of the worktable, the collection assembly including a first flow metering assembly 1 and a first temperature sensor 2 mounted on it, the collection assembly being used to collect falling coolant;

[0035] The rotating base is mounted on a workbench, and the rotating base has multiple mounting surfaces 3; the drill bit is mounted on the mounting surface; the nozzle at the end of the coolant injection assembly is directly opposite one of the drill bits; the coolant injection assembly includes a second temperature sensor, a second flow metering assembly, an electromagnetic flow valve, a liquid pipeline, and a nozzle. The first flow metering assembly, the first temperature sensor, the second temperature sensor, the second flow metering assembly, and the electromagnetic flow valve are all externally connected to a control module 700. The control module determines whether to further open the electromagnetic flow valve based on the difference between the first and second temperature sensors, and simultaneously determines whether the collection hopper is blocked based on the value of the first flow metering assembly. The control module of this invention can be a computer system. The control module in this embodiment is also connected to an alarm.

[0036] In this embodiment, when the electromagnetic flow valve is opened, the coolant injection assembly sprays liquid onto the surface. The second temperature sensor and the second flow metering assembly transmit the temperature and flow rate of the coolant before it is sprayed to the control module. Spilled liquid falls into the collection hopper of the collection assembly. The first temperature sensor and the tachometer transmit the temperature of the liquid in the collection assembly to the control module. When the temperature difference between the first and second temperature sensors exceeds a certain threshold, the control module controls the electromagnetic flow valve to open further. Simultaneously, if the tachometer's rotational speed is lower than the rated threshold, it is determined that the collection hopper is blocked, an alarm is issued, and the electromagnetic flow valve is closed.

[0037] Example 2

[0038] The difference between Example 2 and Example 1 is that, as Figure 2 and Figure 3 As shown, the collection assembly includes a collection hopper 7, which includes a hopper body 8 and a discharge pipe 9. A rotating shaft 10 is installed inside the hopper body, and multiple sets of blades 1 are mounted in the middle of the rotating shaft. The lower part of the rotating shaft is rotatably inserted into the discharge pipe. The first flow metering component is a tachometer, which is installed on the outer wall of the bottom of the rotating shaft and is electrically connected to a control module. A downward-extending bucket-shaped collection hole 12 is provided at the top of the rotating shaft, and the inner diameter of the bucket-shaped collection hole gradually decreases from top to bottom. An upward-protruding protrusion 13 is located at the bottom below the bucket-shaped collection hole, and the first temperature sensors are all installed in the protrusion. Multiple upward-sloping holes 14 are provided on both sides of the protrusion. An elastic plate 15 is provided in each upward-sloping hole, and an elastic bladder 16 is provided at the lower end of each upward-sloping hole. A bearing 4 is installed at the bottom of the rotating shaft, and a fixing ring 6 is externally connected to the outer side of the bearing via a connecting rod 5. The lower part of the hopper body has a mounting groove for placing the fixing ring and the connecting rod. In this embodiment, the first flow metering component, the first temperature sensor, the second temperature sensor, the second flow metering component, and the electromagnetic flow valve are all connected to an external control module. The temperature data of the liquid pipeline in the coolant injection component is transmitted to the control module, and the injected liquid cools the drill bit. The spilled liquid is guided to fall into the collection hopper of the collection component.

[0039] The falling liquid impacts the blades, causing the rotating shaft to rotate. The speed of the rotating shaft is directly proportional to the water flow. The tachometer feeds the speed information back to the control module. Simultaneously, the falling liquid enters the funnel-shaped collection hole and impacts the protrusion. After impacting the protrusion, it flows out obliquely upward through multiple upward-sloping holes. The liquid changes direction upon contact with the protrusion, and with the blocking effect of the elastic sheet, the liquid is buffered and mixed briefly in the protrusion, ensuring the accuracy of the second temperature sensor inside the protrusion. The kinetic energy and gravitational potential energy of the water flowing into the funnel-shaped collection hole, combined with the rotation of the rotating shaft itself, create centrifugal force, causing the liquid to flow out quickly through the upward-sloping holes. This prevents the liquid from accumulating in the protrusion for a long time. An elastic bladder is located at the lower end of the upward-sloping hole. When the liquid flow rate is high, the elastic bladder can compress outward, thereby expanding the inner diameter of the upward-sloping hole and accelerating the flow of liquid through it.

[0040] The above description is merely a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. A multi-functional CNC machine tool, characterized in that, include: A bed body, wherein a worktable is provided in the middle of the bed body; a collection component is provided on the table surface of the worktable, the collection component including a first flow metering component and a first temperature sensor, the collection component being used to collect falling coolant; A rotating base, which is mounted on a workbench and has multiple mounting surfaces; Multiple drill bits are disposed on the mounting surface; A coolant injection assembly has a nozzle at its end facing one of the drill bits. The coolant injection assembly includes a second temperature sensor, a second flow metering assembly, and an electromagnetic flow valve. The first flow metering assembly, the first temperature sensor, the second temperature sensor, the second flow metering assembly, and the electromagnetic flow valve are all externally connected to a control module. The control module determines whether to further open the electromagnetic flow valve based on the difference between the first and second temperature sensors, and simultaneously determines whether the collection assembly is blocked based on the value of the first flow metering assembly. The collecting assembly includes a collecting hopper, which includes a hopper body and a feeding pipe. A rotating shaft is installed inside the hopper body. Multiple sets of blades are installed in the middle of the rotating shaft. The lower part of the rotating shaft is rotatably inserted into the feeding pipe. The rotating shaft has a downward-extending funnel-shaped collecting hole at its top, with the inner diameter of the funnel-shaped collecting hole gradually decreasing from top to bottom. Below the funnel-shaped collecting hole, there is an upward-protruding protrusion, in which the first temperature sensors are all installed. Multiple upward-sloping holes are provided on both sides of the protrusion. An elastic plate is provided in each upward-sloping hole, and an elastic bladder is provided at the lower end of each upward-sloping hole. Falling liquid enters the funnel-shaped collecting hole and impacts the protrusion, then flows out obliquely upward through the multiple upward-sloping holes. The liquid changes direction upon contact with the protrusion, and with the blocking effect of the elastic plate, the liquid is buffered and mixed briefly in the protrusion. When the liquid flow rate is high, the elastic bladder compresses outward, thereby expanding the inner diameter of the upward-sloping holes and accelerating the flow of liquid through them.

2. The multi-functional CNC machine tool as described in claim 1, characterized in that, The first flow metering component is a tachometer, which is installed at the bottom of the rotating shaft and electrically connected to the control module.

3. The multi-functional CNC machine tool as described in claim 1, characterized in that, The bottom of the rotating shaft is equipped with a bearing, and a fixing ring is connected to the outer side of the bearing via a connecting rod.

4. A multi-functional CNC machine tool as described in claim 3, characterized in that, The lower part of the bucket body is provided with a mounting groove for placing a fixing ring and a connecting rod.