Cutting fluid defoaming performance tester

Abstract

The utility model discloses a cutting fluid defoaming performance tester which comprises a case, a test cylinder arranged on the case and a water delivery assembly, the lower end of the test cylinder is provided with a water return port, the upper end of the test cylinder is provided with a water inlet, and the water delivery assembly comprises a water return pipe between water pumps and a spray head connected to the water pumps and injected into the test cylinder. The machine box is further provided with a drainage pipe communicated with the water return pipe and a valve capable of opening and closing the drainage pipe. When the cutting fluid needs to be replaced, the valve of the drainage pipe is opened, the cutting fluid in the drainage pipe can be discharged, then the valve is closed, and a second cutting fluid can be added into the testing cylinder for testing.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting fluid testing, in particular to a cutting fluid defoaming performance tester. Background Technique

[0002] Metalworking cutting fluid is a low-foam, highly lubricating soluble lubricating oil, which can play roles such as lubrication, cooling, and product flushing during metal processing. Even in an environment with high requirements for processing fluid, it can minimize maintenance costs and is basically applicable to all types of processing of various metals and alloys. It is very effective for general processing of most ferrous metals, especially when processing mild steel, cast iron, stainless steel, and other special steels, it can simultaneously exert excellent lubrication and cooling effects.

[0003] For example, a metalworking fluid stability tester disclosed in Chinese Patent (CN202222969505.1) solves the problems of existing testers that cannot ensure that different metalworking fluids are bubbled at the same temperature and are also difficult to test the bubbling conditions of metalworking fluids at different temperatures, resulting in inaccurate test results. However, this tester also has the following problems: First, the metal cutting fluid after testing fills various containers and pipelines, which is not convenient for drainage. Second, although an adjustment component 243 is provided on the nozzle 24, the straight spray nozzle 2432 or the inclined spray nozzle 2433 can be selected as the liquid spraying outlet through the adjustment component 243, so there are two modes of straight spraying and inclined spraying. However, this nozzle 24 also has the following problems. 1. The overall structure of the nozzle is complex and the cost is high; 2. The nozzle 24 has a pressurizing effect and is difficult to disassemble, while there is often no nozzle with a similar pressurizing effect at the outlet of the cutting fluid on the machine tool. Therefore, it is difficult to simulate the working conditions of the machine tool by removing the nozzle 24. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a cutting fluid defoaming performance tester that is convenient for discharging cutting fluid.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A cutting fluid defoaming performance tester includes a chassis, a test cylinder arranged on the chassis, and a water delivery component. A water return port is arranged at the lower end of the test cylinder, and a water inlet is arranged at the upper end. The water delivery component includes a water return pipe between water pumps and a spray head connected to the water pumps and injecting into the test cylinder. The chassis is also provided with a drain pipe communicated with the water return pipe and a valve capable of opening and closing the drain pipe.

[0007] In a preferred embodiment of the present invention, the return pipe includes a first pipe body communicating with the water return port, a water pump, and a tee joint connected between the first pipe body and the second pipe body, and one end of the drain pipe is connected to the tee joint.

[0008] In a preferred embodiment of the present invention, the nozzle includes a connection head and a nozzle installed on the connection head. The head end of the connection head is inserted inside the end of the water supply pipe, and the water supply pipe and the connection head are connected by a detachable connection structure.

[0009] In a preferred embodiment of the present invention, the connection structure includes an external thread provided on the connection head and an internal thread provided on the water supply pipe.

[0010] In a preferred embodiment of the present invention, a limiting platform capable of abutting against the end face of the water supply pipe is provided on the connection head. The connection structure includes a magnet provided on the limiting platform. The water supply pipe is a metal pipe capable of being attracted by the magnet or a metal fitting capable of being attracted by the magnet is provided on the water supply pipe. A first sealing structure capable of closing the gap between the connection head and the water supply pipe is provided therebetween.

[0011] In a preferred embodiment of the present invention, the first sealing structure includes a sealing groove provided around the outer side wall of the connection head and a first sealing ring installed at the sealing groove.

[0012] In a preferred embodiment of the present invention, the nozzle is in a cup shape and is sleeved on the end of the connection head. Injection holes are provided on the bottom surface of the nozzle. A water guiding groove is provided on the end face of the end of the connection head. The middle part of the water guiding groove is directly opposite to the injection holes. A confluence channel capable of making the liquid flow and converge from the respective ends of the water guiding groove to the middle part of the water guiding groove is provided on the connection head. The nozzle is threadedly connected to the connection head so that the distance between the bottom surface of the water guiding groove and the injection holes is adjustable.

[0013] In a preferred embodiment of the present invention, the confluence channel includes an axial blind hole starting from the end face of the head end of the connection head, a plurality of axial grooves provided on the outer side wall of the connection head and communicating with the ends of the water guiding groove, and a plurality of vertical holes communicating the axial grooves with the axial blind hole.

[0014] In a preferred embodiment of the present invention, an arc-shaped flow disturbing groove section is provided between the middle part and the ends of the water guiding groove.

[0015] In a preferred embodiment of the present invention, a second sealing ring capable of closing the gap between the nozzle and the connection head is provided therebetween.

[0016] The beneficial effects of the present utility model are as follows: In the present utility model, when it is necessary to replace the cutting fluid, the valve of the drain pipe is opened, and the cutting fluid therein can be discharged. Then, the valve is closed, and the second cutting fluid can be added to the test cylinder for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of Embodiment 1 of the present utility model;

[0018] Figure 2 is the drainage schematic diagram of the present utility model;

[0019] Figure 3 is Embodiment 1 of the connection structure between the spray head and the water supply pipe;

[0020] Figure 4 is a perspective view of the connecting pipe head;

[0021] Figure 5 is Embodiment 2 of the connection structure between the spray head and the water supply pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicators will also change accordingly. In addition, the descriptions involving "preferred", "sub-preferred", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "preferred" and "sub-preferred" may explicitly or implicitly include at least one such feature.

[0024] Referring to Figures 1 to 5 , the present utility model provides a cutting fluid defoaming performance tester, which includes a chassis 1, a test cylinder 2 provided on the chassis 1, and a water delivery assembly. A water return port 21 is provided at the lower end of the test cylinder 2, and a water inlet 22 is provided at the upper end. The water delivery assembly includes a water pump 31, a water return pipe 32 connected between the water pump 31 and the water return port 21, and a water supply pipe 33 connected to the water outlet end of the water pump 31. A spray head 4 capable of injecting the liquid therein into the test cylinder 2 through the water inlet 22 is provided at the end of the water supply pipe 33. The chassis 1 is further provided with a drain pipe 5 communicating with the water return pipe 32 and a valve 51 capable of opening and closing the drain pipe 5.

[0025] The method for testing the defoaming performance of the cutting fluid in this utility model is as follows: First, close the valve 51 of the drain pipe 5. Then, add an appropriate amount of cutting fluid into the test cylinder 2. Next, start the water pump 31 to pump the cutting fluid to the water supply pipe 33, and finally spray it back into the test cylinder 2 through the nozzle 4 to form a cycle of the cutting fluid. During this process, foam will be generated in the test cylinder 2. After circulating for a certain period of time, such as 30 minutes, turn off the water pump 31 and count the time it takes for the foam to disappear, and judge the defoaming performance based on this time. The outlet of the drain pipe 5 is set at the lowest position. When it is necessary to replace the cutting fluid, open the valve 51 of the drain pipe 5 to drain the cutting fluid therein, and then close the valve 51 to add the second cutting fluid into the test cylinder 2 for testing.

[0026] Referring to Figure 1 , a power switch 11, a start button 12, a small display 13, and a voltage regulating knob 14 can be set on the chassis 1. Through the voltage regulating knob 14, the voltage can be adjusted to adjust the output power of the water pump 31 starting, and thus the flow rate of the sprayed cutting fluid can be adjusted.

[0027] Referring to Figure 2 , in a specific solution of this utility model, the return pipe 32 includes a first pipe body 321 communicating with the water return port 21, a second pipe body 322 communicating with the water pump 31, and a tee joint 323 connected between the first pipe body 321 and the second pipe body 322. One end of the drain pipe 5 is connected to the tee joint 323. The above valve 51 can be a mechanical valve 51, such as a faucet, or an electromagnetic valve. The tee joint 323, the water pump 31, and the valve 51 are all common accessories on the market and can be purchased from the market.

[0028] Furthermore, the nozzle 4 includes a connecting pipe head 41 and a nozzle 42 installed on the connecting pipe head 41. The first end of the connecting pipe head 41 is inserted into the inside of the end of the water supply pipe 33, and the water supply pipe 33 and the connecting pipe head 41 are connected through a detachable connection structure. With such a design, the nozzle 4 is detachable. When necessary, the nozzle 4 can be removed so that the cutting fluid directly flows out from the water supply pipe 33. Compared with the solution with the nozzle 4, the flow rate of the cutting fluid injected into the test cylinder 2 can be reduced, thereby testing the defoaming performance of the cutting fluid at a lower flow rate.

[0029] Example 1

[0030] Referring to Figure 3 , in Example 1 of this utility model, the connection structure includes an external thread provided on the connecting pipe head 41 and an internal thread provided on the water supply pipe 33. The water supply pipe 33 and the connecting pipe head 41 are connected through the cooperation of the two threads. A second sealing ring 72 capable of closing the gap between the nozzle 42 and the connecting pipe head 41 is provided.

[0031] In this embodiment, the nozzle 42 is in the shape of a cup and is sleeved on the end of the connecting pipe head 41. The bottom surface of the nozzle 42 is provided with injection holes 421, and the end surface of the end of the connecting pipe head 41 is provided with a water guide groove 423. The middle part of the water guide groove 423 is directly opposite to the injection holes 421. A confluence channel is provided on the connecting pipe head 41, which can enable the liquid to flow and converge from the respective ends of the water guide groove 423 to the middle part of the water guide groove 423. The nozzle 42 is threadedly connected to the connecting pipe head 41 so that the distance between the bottom surface of the water guide groove 423 and the injection holes 421 is adjustable. Specifically, the confluence channel includes an axial blind hole 401 starting from the end surface of the head end of the connecting pipe head 41, a plurality of axial grooves 402 provided on the outer side wall of the connecting pipe head 41 and communicating with the ends of the water guide groove 423, and a plurality of vertical holes 403 communicating the axial grooves 402 with the axial blind hole 401. Refer to Figure 3 , when the nozzle 42 is screwed to move downward relative to the connecting pipe head 41, the distance between the bottom surface of the water guide groove 423 and the injection holes 421 increases. At this time, the cutting fluid ejected from the injection holes 421 has a fast flow rate and the liquid flow is relatively concentrated. When the distance between the bottom surface of the water guide groove 423 and the injection holes 421 increases to a certain extent, the liquid flow is concentrated into a beam. When the nozzle 42 is screwed to move upward relative to the connecting pipe head 41, the distance between the bottom surface of the water guide groove 423 and the injection holes 421 decreases. At this time, the liquid flow of the cutting fluid ejected from the injection holes 421 is relatively dispersed and the flow rate is slow. Therefore, by screwing the nozzle 42, the flow rate and injection angle of the cutting fluid injected into the test cylinder 2 can also be adjusted, thereby testing the defoaming performance of the cutting fluid under different working conditions.

[0032] Further, an arc-shaped flow disturbance groove section 4231 is provided between the middle part of the water guide groove 423 and the ends of the water guide groove 423. The function of the arc-shaped flow disturbance groove section 4231 is to enable the water flow to generate a spiral, so that the ejected water column is thinner.

[0033] Embodiment 2

[0034] Figure 5 Embodiment 2 of the present utility model is shown. The present utility model has a similar structure to Embodiment 1, and the difference lies in the specific form of the connection structure between the connecting pipe head 41 and the water supply pipe 33.

[0035] In this embodiment, a limiting platform 411 capable of abutting against the end surface of the water supply pipe 33 is provided on the connecting pipe head 41. The connection structure includes a magnet 6 provided on the limiting platform 411. The water supply pipe 33 is a metal pipe that can be attracted by the magnet 6 or a metal fitting capable of being attracted by the magnet 6 is provided on the water supply pipe 33. A first sealing structure capable of closing the gap between the two is provided between the connecting pipe head 41 and the water supply pipe 33. The first sealing structure includes a sealing groove 413 provided around the outer side wall of the connecting pipe head 41 and a first sealing ring 71 installed at the sealing groove 413.

[0036] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A cutting fluid defoaming performance tester, characterized in that: The invention comprises a case (1), a test cylinder (2) arranged on the case (1), and a water delivery assembly, wherein the lower end of the test cylinder (2) is provided with a water return port (21), and the upper end is provided with a water inlet (22), the water delivery assembly comprises a water pump (31), a water return pipe (32) connected between the water pump (31) and the water return port (21), and a water delivery pipe (33) connected to the water outlet end of the water pump (31), the end of the water delivery pipe (33) is provided with a nozzle (4) capable of injecting liquid therein from the water inlet (22) into the test cylinder (2), and the case (1) is also provided with a drainage pipe (5) connected to the water return pipe (32), and a valve (51) capable of opening and closing the drainage pipe (5).

2. A cutting fluid defoaming performance tester according to claim 1, characterized in that: The water return pipe (32) comprises a first pipe body (321) connected to the water return port (21), a second pipe body (322) connected to the water pump (31), and a three-way joint (323) connected between the first pipe body (321) and the second pipe body (322); one end of the drainage pipe (5) is connected to the three-way joint (323).

3. A cutting fluid defoaming performance tester according to claim 1, characterized in that: The spray head (4) comprises a pipe connection head (41) and a nozzle (42) mounted on the pipe connection head (41); the head end of the pipe connection head (41) is inserted into the interior of the end of the water supply pipe (33); the water supply pipe (33) and the pipe connection head (41) are connected via a detachable connection structure.

4. A cutting fluid defoaming performance tester according to claim 3, characterized in that: The connection structure comprises an external thread provided on the connecting pipe head (41) and an internal thread provided on the water supply pipe (33).

5. A cutting fluid defoaming performance tester according to claim 3, characterized in that: The connecting pipe head (41) is provided with a limit platform (411) capable of abutting against the end surface of the water supply pipe (33); the connecting structure comprises a magnet (6) arranged on the limit platform (411); the water supply pipe (33) is a metal pipe capable of being attracted by the magnet (6) or the water supply pipe (33) is provided with a metal accessory capable of being attracted by the magnet (6); and a first sealing structure capable of closing a gap between the connecting pipe head (41) and the water supply pipe (33) is provided between the connecting pipe head (41) and the water supply pipe (33).

6. A cutting fluid defoaming performance tester according to claim 5, characterized in that: The first sealing structure comprises a sealing groove (413) arranged around the outer side wall of the connecting pipe head (41), and a first sealing ring (71) installed at the sealing groove (413).

7. A cutting fluid defoaming performance tester according to claim 3, characterized in that: The nozzle (42) is cup-shaped and is mounted on the end of the connecting pipe head (41). The bottom surface of the nozzle (42) is provided with a spray hole (421). The end surface of the end of the connecting pipe head (41) is provided with a water guide groove (423). The middle part of the water guide groove (423) faces the spray hole (421). The connecting pipe head (41) is provided with a confluence channel that enables liquid to flow from each end of the water guide groove (423) to the middle part of the water guide groove (423). The nozzle (42) is threadedly connected to the connecting pipe head (41) so that the distance between the bottom surface of the water guide groove (423) and the spray hole (421) is adjustable.

8. A cutting fluid defoaming performance tester according to claim 7, characterized in that: The confluence channel comprises an axial blind hole (401) with the end surface of the first end of the connecting head (41) as the starting end, a plurality of axial grooves (402) arranged on the outer side wall of the connecting head (41) and connected to the end of the water guide groove (423), and a plurality of vertical holes (403) connecting each axial groove (402) with the axial blind hole (401).

9. A cutting fluid defoaming performance tester according to claim 7, characterized in that: An arc-shaped spoiler groove section (4231) is provided between the middle portion of the water guide groove (423) and the end portion of the water guide groove (423).

10. A cutting fluid defoaming performance tester according to claim 7, characterized in that: A second sealing ring (72) is provided between the nozzle (42) and the connecting pipe head (41) and is capable of closing the gap therebetween.

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