Flow-regulated cutting fluid delivery mechanism
Patent Information
- Application Number
- CN202522185863.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-16
AI Technical Summary
[0003]但是传统切削液输送装置在使用时仍存在一些不足之处，一是无换热组件，切削液仅通过自然散热降温，降温效率低(温度超30℃后需2-3小时才能降至常温)，高温会加速切削液变质(使用寿命从6个月缩短至2个月)，且高温切削液冷却效果下降，易导致刀具热变形；
[0021]1、本实用新型通过设置贯穿多个腔室的蛇形管，使换热介质能在每个腔室内与切削液充分接触，同时利用隔板将切削液存储箱划分为多个独立腔室，让回流的高温切削液沿腔室依次流动、逐步换热降温，避免冷热切削液直接混合，实现了切削液的高效均匀降温，解决了传统装置无换热组件导致降温效率低、切削液易变质的问题。
Smart Images
Figure CN224780045U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting machining auxiliary devices, and more specifically, to a cutting fluid delivery mechanism with adjustable flow rate. Background Technology
[0002] In the field of machining (such as metal cutting, milling, drilling, etc.), cutting fluid is a key auxiliary medium for ensuring machining accuracy and extending tool life. It directly affects machining efficiency and product quality through three core functions: cooling the contact surface between the tool and the workpiece (reducing cutting temperature and preventing tool thermal deformation), lubricating the cutting area (reducing tool wear), and flushing chips (preventing chips from scratching the workpiece surface). When delivering cutting fluid, a corresponding cutting fluid delivery mechanism is usually used. Currently, cutting fluid delivery mechanisms on the market all use variable frequency delivery pumps for delivery. These variable frequency delivery pumps have the advantage of adjustable delivery flow rate, which can achieve the effect of adjusting the delivery flow rate as needed.
[0003] However, traditional cutting fluid delivery devices still have some shortcomings in use. First, they lack heat exchange components, and the cutting fluid cools down only through natural heat dissipation, resulting in low cooling efficiency (it takes 2-3 hours to cool down to room temperature after the temperature exceeds 30℃). High temperatures will accelerate the deterioration of the cutting fluid (shortening its service life from 6 months to 2 months), and the cooling effect of the cutting fluid will decrease at high temperatures, which can easily lead to thermal deformation of the cutting tool.
[0004] Secondly, uneven temperature distribution is a problem. Traditional cutting fluid storage tanks are single-chamber systems. Hot cutting fluid flows directly into the tank and mixes directly with the cold cutting fluid already inside. This causes the temperature of the previously cold cutting fluid to rise, making it difficult to ensure that the cutting fluid delivered to the application area is at a low temperature. This results in a temperature difference exceeding ±5℃ within the tank. When cutting fluids of different temperatures enter the machining area, the viscosity differences lead to unstable lubrication effects, which in turn cause machining errors. Therefore, we propose an adjustable flow rate cutting fluid delivery mechanism. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable flow rate cutting fluid delivery mechanism to address the deficiencies mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An adjustable flow rate cutting fluid delivery mechanism includes a cutting fluid storage tank. Multiple baffles are fixedly installed on the inner wall of the storage tank, dividing the internal space into multiple chambers. Adjacent chambers are connected by a flow gap at the top, allowing the cutting fluid to flow slowly within the tank and prolonging its residence time. Combined with the heat exchange effect of the serpentine tube, this ensures sufficient contact between the cutting fluid and the tube, improving heat exchange efficiency and maintaining the cutting fluid temperature within a suitable range, thereby improving machining quality. The storage tank is equipped with a serpentine tube for heat exchange operation. The serpentine tube passes through the partition and is distributed in each chamber. The inlet and outlet ends of the serpentine tube are respectively fixedly installed with liquid inlet pipe and liquid outlet pipe. A return pipe for cutting fluid inflow is fixedly installed on the side of the tank near the liquid outlet pipe. A suction pipe is fixedly installed on the side of the tank near the liquid inlet pipe. A variable frequency adjustable delivery pump is fixedly installed at the end of the suction pipe. A delivery pipe is fixedly installed at the outlet end of the variable frequency adjustable delivery pump.
[0008] Preferably, the bottom of the cutting fluid storage tank is fixedly equipped with multiple support legs, the height of which is between 10cm and 15cm.
[0009] Preferably, an exhaust pressure relief pipe is fixedly installed on the top of the cutting fluid storage tank, and the top of the exhaust pressure relief pipe is inverted U-shaped;
[0010] This feature enables pressure relief protection, and the inverted U-shaped exhaust vent pipe effectively prevents falling dust from entering.
[0011] Preferably, an addition tube is fixedly installed on the top of the cutting fluid storage tank, and a threaded cap is threadedly connected to the addition tube;
[0012] This setting enables the proper addition of cutting fluid.
[0013] Preferably, a drain pipe is provided at the bottom of the cutting fluid storage tank, and multiple guide pipes are fixedly installed on the drain pipe. The guide pipes are connected to the corresponding chambers, and a drain valve is fixedly installed on the guide pipes.
[0014] This setting facilitates subsequent sewage discharge operations.
[0015] Preferably, a valve is fixedly installed on the conveying pipe, and a gooseneck tube is detachably installed at the end of the conveying pipe;
[0016] This setup allows for valve control of pipe opening and closing, and the gooseneck tube facilitates orientation adjustment.
[0017] Preferably, a rigid pipe is installed at the end of the return pipe, and the end of the rigid pipe is fixedly installed at the cutting fluid return section of the cutting process.
[0018] Preferably, a threaded sleeve is threaded to the end of the rigid tube, and an inner filter cotton core is provided at the center of the threaded sleeve, and the inner filter cotton core is inserted into the rigid tube.
[0019] This setting can filter the returning cutting fluid, preventing impurities from entering.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] 1. This utility model, by setting up a serpentine tube that runs through multiple chambers, allows the heat exchange medium to fully contact the cutting fluid in each chamber. At the same time, the cutting fluid storage tank is divided into multiple independent chambers by using partitions, allowing the high-temperature cutting fluid to flow sequentially along the chambers and gradually exchange heat and cool down. This avoids direct mixing of hot and cold cutting fluids, achieving efficient and uniform cooling of the cutting fluid and solving the problems of low cooling efficiency and easy deterioration of cutting fluid caused by the lack of heat exchange components in traditional devices.
[0022] 2. This utility model combines a variable frequency adjustable delivery pump with a suction pipe. The suction pipe draws cutting fluid from the low-temperature chamber after multi-chamber heat exchange, and the variable frequency adjustable delivery pump precisely adjusts the output flow rate according to the processing conditions. At the same time, the stable low-temperature environment avoids viscosity differences in the cutting fluid caused by temperature fluctuations, thus realizing the adjustable flow rate and stable supply of cutting fluid.
[0023] 3. This utility model filters chips and impurities in the returning cutting fluid by setting a threaded sleeve with an inner filter cotton core at the end of the return pipe. At the same time, the drain pipe and guide pipe at the bottom of the cutting fluid storage tank can be used for drainage, avoiding the accumulation of impurities and circulation pollution, thus realizing the clean circulation and convenient maintenance of the cutting fluid. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0026] The meanings of the labels in the diagram are as follows:
[0027] 1. Cutting fluid storage tank; 10. Support leg; 11. Baffle; 12. Flow clearance; 13. Exhaust and pressure relief pipe; 14. Addition pipe; 141. Threaded cap; 15. Drain pipe; 16. Conductor pipe; 161. Drain valve;
[0028] 2. Snake-shaped tube; 20. Discharge tube; 21. Inlet tube;
[0029] 3. Return pipe; 30. Rigid pipe; 31. Threaded sleeve; 32. Inner filter cotton core;
[0030] 4. Variable frequency drive pump; 40. Suction pipe; 41. Delivery pipe; 411. Valve; 42. Gooseneck pipe. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.
[0033] Please see Figures 1-2 This utility model provides a technical solution: an adjustable flow rate cutting fluid delivery mechanism, including a cutting fluid storage tank 1. Multiple partitions 11 are fixedly installed on the inner wall of the cutting fluid storage tank 1, dividing the internal space of the cutting fluid storage tank 1 into multiple chambers. Two adjacent chambers are connected by a flow gap 12 at the top, allowing the cutting fluid to flow slowly within the storage tank, extending the residence time. Combined with the heat exchange effect of the serpentine tube 2, this ensures sufficient contact between the cutting fluid and the serpentine tube 2, improving heat exchange efficiency, ensuring the cutting fluid temperature remains stable within a suitable range, and improving the quality of cutting operations. The cutting fluid storage tank 1 is equipped with a serpentine tube 2 for heat exchange operation. 2. Passing through the partition 11 and distributed in each chamber, the inlet and outlet ends of the serpentine tube 2 are respectively fixedly installed with an inlet pipe 21 and an outlet pipe 20; a return pipe 3 for the inflow of cutting fluid is fixedly installed on the side of the cutting fluid storage tank 1 near the outlet pipe 20, and a suction pipe 40 is fixedly installed on the side of the cutting fluid storage tank 1 near the inlet pipe 21. A variable frequency regulating delivery pump 4 is fixedly installed at the end of the suction pipe 40, and a delivery pipe 41 is fixedly installed at the outlet end of the variable frequency regulating delivery pump 4, so that the returned cutting fluid can pass through the corresponding chambers in sequence and exchange heat with the serpentine tube 2 before finally reducing the temperature and being delivered to the outside by the variable frequency regulating delivery pump 4 for use.
[0034] In this embodiment, the returning cutting fluid enters the corresponding chamber through the return pipe 3 beforehand and exchanges heat with the heat exchange medium in the serpentine tube 2 in that chamber. When the cutting fluid in the chamber is full, the cutting fluid will flow to the next chamber. Since the water inlet and outlet of the serpentine tube 2 are opposite to the flow direction of the cutting fluid, it can be ensured that the cutting fluid has been sufficiently cooled at the suction pipe 40.
[0035] like Figure 1 As shown, multiple support legs 10 are fixedly installed at the bottom of the cutting fluid storage tank 1. The height of the support legs 10 is between 10cm and 15cm, so that the bottom of the cutting fluid storage tank 1 is 10cm to 15cm away from the ground, avoiding corrosion of the bottom of the storage tank caused by the damp ground environment. At the same time, sufficient space is reserved for the installation and operation of the drain pipe 15 and the guide pipe 16, which is convenient for subsequent maintenance.
[0036] like Figure 1 As shown, an exhaust and pressure relief pipe 13 is fixedly installed on the top of the cutting fluid storage tank 1. The top of the exhaust and pressure relief pipe 13 is inverted U-shaped, which allows excess pressure generated inside the cutting fluid storage tank 1 due to temperature changes or cutting fluid circulation to be discharged in time, achieving pressure relief protection and preventing the tank from being damaged due to excessive pressure. In addition, the inverted U-shaped structure at the top of the exhaust and pressure relief pipe 13 can effectively block dust falling from the outside from entering the storage tank through the pipe, thus preventing the cutting fluid from being contaminated.
[0037] like Figure 1 As shown, an addition pipe 14 is fixedly installed on the top of the cutting fluid storage tank 1. A threaded cap 141 is threadedly connected to the addition pipe 14, allowing the operator to add cutting fluid to the cutting fluid storage tank 1 through the addition pipe 14 by opening the threaded cap 141, thus meeting the needs of continuous use. The threaded cap 141 can tightly seal the addition pipe 14 to prevent impurities from entering.
[0038] like Figure 1 As shown, a drain pipe 15 is provided at the bottom of the cutting fluid storage tank 1. Multiple guide pipes 16 are fixedly installed on the drain pipe 15. The guide pipes 16 are connected to the corresponding chambers. A drain valve 161 is fixedly installed on the guide pipes 16 so that the cutting fluid can be discharged normally after it fails and the cutting fluid can be replaced.
[0039] like Figure 1 As shown, a valve 411 is fixedly installed on the delivery pipe 41, and a gooseneck tube 42 is detachably installed at the end of the delivery pipe 41. This allows the operator to control the opening and closing of the delivery pipe 41 through the valve 411, flexibly adjust the cutting fluid delivery rhythm, and control the cutting fluid flow rate. The detachable gooseneck tube 42 can flexibly adjust the outlet orientation according to the position of the cutting equipment to ensure that the cutting fluid is accurately delivered to the processing part, thus improving the flexibility of use.
[0040] In this embodiment, a rigid pipe 30 is installed at the end of the return pipe 3. The end of the rigid pipe 30 is fixedly installed at the cutting fluid return part of the cutting process, so that the return pipe 3 can be stably fixed at the cutting fluid return part of the cutting process, ensuring the stability of the cutting fluid return path and avoiding poor return due to pipe loosening; the rigid structure of the rigid pipe 30 can also reduce the damage to the return pipe caused by external collisions and extend its service life.
[0041] Specifically, a threaded sleeve 31 is threadedly connected to the end of the rigid pipe 30. An inner filter cotton core 32 is installed at the center of the threaded sleeve 31. The inner filter cotton core 32 is inserted into the rigid pipe 30. Through the threaded sleeve 31 and the inner filter cotton core 32, the cutting fluid returning after cutting is filtered by the inner filter cotton core 32 before entering the rigid pipe 30, preventing metal chips, impurities, etc. from entering the cutting fluid storage tank 1, avoiding contamination of the cutting fluid in the storage tank by impurities, and preventing impurities from clogging the serpentine pipe 2 or the frequency converter pump 4, ensuring the normal operation of the equipment.
[0042] Finally, it should be noted that the variable frequency regulating pump 4 itself has the function of adjusting the conveying flow rate. Specifically, the motor speed can be adjusted through the variable frequency controller. The variable frequency controller (such as PLC or dedicated variable frequency module) equipped with the pump receives external signals (such as the working condition command of the processing equipment, the feedback value of the flow sensor), and precisely controls the motor speed driving the pump body by changing the frequency and voltage of the output power supply. According to the principle of fluid mechanics, the pump flow rate is directly proportional to the motor speed (increase in speed, increase in flow rate; decrease in speed, decrease in flow rate). Therefore, by continuously adjusting the motor speed, stepless smooth adjustment of the flow rate can be achieved. The variable frequency regulating pump 4, the corresponding control system, and the external power supply of this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.
[0043] When using the adjustable flow cutting fluid delivery mechanism of this utility model, open the threaded cap 141 and inject cutting fluid through the addition pipe 14. After replenishment, tighten the threaded cap 141 to seal and prevent impurities from entering. Fix the hard pipe 30 at the end of the return pipe 3 to the cutting fluid return part of the cutting process, and ensure that the inner filter cotton core 32 in the threaded sleeve 31 at the end of the hard pipe 30 is installed in place.
[0044] The heat exchange medium is introduced through the inlet pipe 21 of the serpentine tube 2. After the medium is distributed in each chamber through the serpentine tube 2 and exchanges heat with the cutting fluid, it is discharged from the outlet pipe 20.
[0045] Start the variable frequency regulating delivery pump 4, which draws the low temperature cutting fluid after heat exchange in the storage tank through the suction pipe 40 and delivers it through the delivery pipe 41. The operator can control the on and off of the pump through the valve 411 and adjust the orientation of the gooseneck pipe 42 to accurately deliver the cutting fluid to the processing area.
[0046] After processing, the cutting fluid is returned through the rigid pipe 30, impurities are filtered by the inner filter cotton core 32, and then enters the storage tank through the return pipe 3. It flows sequentially along the flow gap 12 at the top of the chamber separated by the partition 11, and exchanges heat fully with the serpentine tube 2.
[0047] Periodically open the drain valve 161 on the guide pipe 16 to discharge and replace the internal cutting fluid, and the exhaust and pressure relief pipe 13 discharges excess pressure in the tank in real time.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable flow rate cutting fluid delivery mechanism, comprising a cutting fluid storage tank (1), characterized in that: Multiple partitions (11) are fixedly installed on the inner wall of the cutting fluid storage tank (1). The partitions (11) divide the internal space of the cutting fluid storage tank (1) into multiple chambers. Two adjacent chambers are connected by a flow gap (12) at the top. A serpentine tube (2) for heat exchange is provided inside the cutting fluid storage tank (1). The serpentine tube (2) passes through the partitions (11) and is distributed in each chamber. The inlet and outlet ends of the serpentine tube (2) are fixedly installed. The cutting fluid storage tank (1) is fixedly equipped with an inlet pipe (21) and an outlet pipe (20); a return pipe (3) for the inflow of cutting fluid is fixedly installed on the side of the tank near the outlet pipe (20); a suction pipe (40) is fixedly installed on the side of the tank near the inlet pipe (21); a variable frequency adjustable delivery pump (4) is fixedly installed at the end of the suction pipe (40); and a delivery pipe (41) is fixedly installed at the outlet end of the variable frequency adjustable delivery pump (4).
2. The adjustable flow rate cutting fluid delivery mechanism according to claim 1, characterized in that: The bottom of the cutting fluid storage tank (1) is fixedly equipped with multiple support legs (10), and the height of the support legs (10) is between 10cm and 15cm.
3. The adjustable flow rate cutting fluid delivery mechanism according to claim 1, characterized in that: An exhaust pressure relief pipe (13) is fixedly installed on the top of the cutting fluid storage tank (1), and the top of the exhaust pressure relief pipe (13) is inverted U-shaped.
4. The adjustable flow rate cutting fluid delivery mechanism according to claim 1, characterized in that: An addition tube (14) is fixedly installed on the top of the cutting fluid storage tank (1), and a threaded cap (141) is threadedly connected to the addition tube (14).
5. The adjustable flow rate cutting fluid delivery mechanism according to claim 1, characterized in that: The bottom of the cutting fluid storage tank (1) is provided with a drain pipe (15), and multiple guide pipes (16) are fixedly installed on the drain pipe (15). The guide pipes (16) are connected to the corresponding chambers, and a drain valve (161) is fixedly installed on the guide pipes (16).
6. The adjustable flow rate cutting fluid delivery mechanism according to claim 1, characterized in that: A valve (411) is fixedly installed on the conveying pipe (41), and a gooseneck pipe (42) is detachably installed at the end of the conveying pipe (41).
7. The adjustable flow rate cutting fluid delivery mechanism according to claim 1, characterized in that: The end of the return pipe (3) is fitted with a rigid pipe (30), and the end of the rigid pipe (30) is fixedly installed in the cutting fluid return section of the cutting process.
8. The adjustable flow rate cutting fluid delivery mechanism according to claim 7, characterized in that: The end of the rigid tube (30) is threaded with a threaded sleeve (31), and an inner filter cotton core (32) is provided at the center of the threaded sleeve (31). The inner filter cotton core (32) is inserted into the rigid tube (30).