Water-based metal working fluid performance evaluation device

Abstract

The utility model provides a water-based metal working fluid performance evaluation device which is characterized in that a first test box is arranged on a bracket, and the bottom of the first test box is communicated with the top of a second test box through a first pipeline; the bottom of the second test box is communicated with an inlet of the circulating pump; the circulating pump is communicated with the top of the first test box; the nozzle device is communicated with the third pipeline; a workpiece table is arranged at the bottom of the inner side of the first test box, and a workpiece is arranged on the workpiece table; more than two laminates are horizontally arranged on the inner side of the second test box; the water-based metal working fluid circularly flows according to the sequence of the first test box, the first pipeline, the second test box, the second pipeline, the circulating pump and the third pipeline. According to the utility model, the working fluid injection simulation test is carried out by simulating the workpiece, and the change of the workpiece in the contact process with the working fluid is observed, so that the suitability of the working fluid and the workpiece is evaluated, the working fluid adaptation accuracy is improved, and the dependence on the judgment of professionals is reduced.

Description

Technical Field

[0001] The utility model relates to the field of physics, in particular to measurement technology, and further to chemical or physical analysis technology, in particular to a device for evaluating the performance of a water-based metalworking fluid. Background Art

[0002] Water-based metalworking fluids, including cutting fluids and grinding fluids, are closely linked to the material and characteristics of the workpiece being machined, as well as the machining time. Choosing the wrong cutting fluid can lead to poor machining quality, tool breakage, workpiece rust, and machine tool damage, impacting quality and potentially delaying the project, resulting in significant financial losses for the customer. During the R&D process, metalworking fluid performance can only be tested and analyzed under specific conditions. However, due to the diverse range of large-scale machine tools, different machining processes, and different materials used on-site, numerous variations in performance can occur during use, making it difficult for laboratories to evaluate and simulate field conditions.

[0003] In the existing technology, when providing water-based metalworking fluids to customers, experienced professionals can only select the cutting fluid based on their past experience. However, this method has many problems:

[0004] 1. The accuracy of the selection depends on experienced professionals, and the labor cost is high;

[0005] 2. Unable to accurately judge the compatibility of machining fluids for new materials;

[0006] 3. The non-woven fabrics used to filter water-based metalworking fluids on different machine tools are different, and it is impossible to determine their compatibility with the processing fluid;

[0007] 4. Different machining fluid injection angles have different effects on the workpiece, making it difficult to accurately judge;

[0008] 5. There is oil leakage in the machine tool, and it is not certain whether it will affect the processing of the workpiece. Summary of the Invention

[0009] The purpose of the utility model is to provide a water-based metalworking fluid performance evaluation device, which aims to solve the technical problem in the prior art of difficulty in judging the compatibility of the processing fluid with a workpiece or a machine tool.

[0010] The utility model is a performance evaluation device for water-based metalworking fluid, comprising a bracket, a circulation pump, a first test box and a second test box, wherein the first test box is arranged on the bracket, the bottom of the first test box is connected to the top of the second test box through a first pipe, and the bottom surface of the first test box is higher than the top surface of the second test box; the bottom of the second test box is connected to the inlet of the circulation pump through a second pipe, and the outlet of the circulation pump is connected to the top of the first test box through a third pipe; a nozzle device is provided at the top of the inner side of the first test box, and the nozzle device is connected to the third pipe; a workpiece table is provided at the bottom of the inner side of the first test box, and a workpiece is provided on the workpiece table; two layer plates parallel to the horizontal plane are provided at upper and lower intervals on the inner side of the second test box, and the edges around the layer plates are detachably connected to the side walls of the test box; the utility model comprises water-based metalworking fluid, and the water-based metalworking fluid circulates in the order of the first test box, the first pipe, the second test box, the second pipe, the circulation pump, and the third pipe.

[0011] Furthermore, the layer plate includes a first layer plate and a second layer plate, the first layer plate is spaced apart and arranged above the second layer plate, non-woven fabric is arranged on the first layer plate, and metal particles are arranged on the second layer plate.

[0012] Furthermore, a universal tube is provided on the nozzle of the nozzle device.

[0013] Furthermore, it includes an oil dripping device, which includes an oil bottle and an oil dripping nozzle. The oil bottle and the oil dripping nozzle are connected through an oil pipe, and the oil dripping nozzle is arranged on the side wall inside the first test box.

[0014] Furthermore, the connection point between the first test box and the first pipe is a drain outlet, and a drainage slope is provided around the drain outlet at the bottom of the first test box.

[0015] Furthermore, the first test box and the second test box each include at least one transparent side panel.

[0016] Compared with the existing technology, the effects of this utility model are positive and obvious:

[0017] 1. Use the first and second test chambers and a circulating pump to conduct a machining fluid spray simulation test on a simulated workpiece made of the same material as the target workpiece. Observe the changes in the workpiece during contact with the machining fluid to evaluate the compatibility of the machining fluid and workpiece, improve the accuracy of machining fluid adaptation, and reduce reliance on professional judgment.

[0018] 2. Further test the effect of the machining fluid on the material using metal particles in the second test chamber.

[0019] 3. The filtration and defoaming performance of the machining fluid were tested in a second test chamber using the same non-woven fabric as that used for the target machine tool.

[0020] 4. By adding an oil dripping device to simulate the oil leakage in the machine tool, the accuracy of the simulation test can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of embodiment 1 of the present utility model.

[0022] Figure 2 It is a structural diagram of embodiment 2 of the present utility model.

[0023] Figure 3 It is a structural diagram of embodiment 3 of the present utility model.

[0024] In the figure: 1 first test box; 101 drainage slope; 102 drainage outlet; 2 bracket; 3 second test box; 301 first layer board; 302 second layer board; 4 circulation pump; 5 workpiece table; 6 workpiece; 7 nozzle device; 701 universal pipe; 8 oil drip device; 801 oil bottle; 802 oil delivery pipe; 803 oil drip nozzle; 9 first pipeline; 10 second pipeline, 11 third pipeline. DETAILED DESCRIPTION

[0025] The following examples will further illustrate the present invention, but are not intended to limit the present invention.

[0026] like Figure 1 As shown, this embodiment provides a water-based metalworking fluid performance evaluation device, including a bracket 2, a circulation pump 4, a first test box 1 and a second test box 3.

[0027] The first and second test boxes 1 and 3 are both glass boxes, allowing for more intuitive observation of the test conditions inside. The top edges of the first and second test boxes 1 and 3 are snap-fitted to the side panels, allowing the top panels to be removed and opened, making it easier to place or adjust test materials.

[0028] The first test box 1 is placed on the bracket 2, and the bottom center of the first test box 1 is connected to the top of the second test box 3 through the first pipe 9. The bottom surface of the first test box 1 is higher than the top surface of the second test box 3, thereby achieving the effect of allowing the aqueous metalworking fluid (hereinafter referred to as the working fluid) in the first test box 1 to flow into the second test box 3 through the first pipe 9 under the action of gravity.

[0029] The bottom of the second test box 3 is connected to the inlet of the circulation pump 4 through the second pipe 10, and the outlet of the circulation pump 4 is connected to the top of the first test box 1 through the third pipe 11, thereby achieving the effect of pumping the processing fluid in the second test box 3 into the first test box 1 under the action of the circulation pump 4.

[0030] A workpiece table 5 is provided at the bottom of the inner side of the first test box 1 , on which a workpiece 6 is provided. The workpiece 6 is identical in size and material to the target workpiece actually processed on site, thereby improving the accuracy of the simulation test.

[0031] A nozzle device 7 is provided at the top of the inner side of the first test box 1. The nozzle device 7 is connected to the third pipe 11. The nozzle is aimed at the workpiece 6. The processing fluid pumped into the third pipe 11 by the circulation pump 4 is sprayed onto the workpiece 6 through the nozzle device 7, thereby simulating the spraying effect of the processing fluid on the workpiece 6 during on-site machine tool processing.

[0032] Two layers parallel to the horizontal plane are arranged at intervals on the upper and lower sides of the inner side of the second test box 3. The side walls of the second test box 3 are fixed with clips corresponding to the number and position of the layers. The edges of the layers are placed on the top of the clips, thereby realizing the detachable connection effect of the layers in the second test box 3, which is convenient for replacing the non-woven fabric or metal particles used for testing; the first layer 301 is arranged above the second layer 302 at intervals, and the first layer 301 is provided with the same non-woven fabric as that in the on-site machine tool. A plurality of through holes are provided in the first layer 301 to facilitate the flow of the processing fluid into the lower layer, thereby realizing the effect of testing the filtering effect of the non-woven fabric and the defoaming performance of the processing fluid; the plate surface of the second layer 302 is a stainless steel mesh, and the stainless steel mesh is provided with metal particles of the same material as the workpiece 6. The diameter of the metal particles is larger than the mesh diameter of the stainless steel mesh. Using metal particles for testing increases the contact area between the material and the processing fluid, thereby making it easier to detect rust and improve the accuracy of the test.

[0033] The aqueous metalworking fluid circulates in the order of first test chamber 1, first pipeline 9, second test chamber 3, second pipeline 10, circulation pump 4, and third pipeline 11. After being sprayed onto workpiece 6 by nozzle device 7, it flows into second test chamber 3. After sequentially contacting first and second panels 301, 302, the fluid is stored at the bottom of second test chamber 3. It is then pumped back into first test chamber 1 by circulation pump 4 for further circulation. The circulation pump pressure can be adjusted during the experiment to improve simulation accuracy.

[0034] The connection point between the first test box 1 and the first pipe 9 is a drain outlet 102 . A drainage slope 101 is provided around the drain outlet 102 at the bottom of the first test box 1 , thereby improving the drainage effect of the first test box 1 .

[0035] The working process of this embodiment:

[0036] Before the test, we communicated with the customer and prepared the same workpiece 6 as in the actual processing site, the same non-woven filter fabric for the machine tool, and several metal particles made of the same material as the workpiece 6.

[0037] Open the top plates of the first test box 1 and the second test box 3, place the workpiece 6 on the workpiece table 5 in the first test box 1, spread the non-woven fabric on the first layer 301, and evenly spread the metal particles on the second layer 302. Add water-based metalworking fluid to the bottom of the second test box 3, cover the top plate, and start the test.

[0038] The circulation pump 4 is turned on to draw the machining fluid from the bottom of the second test box 3 into the second pipe 10, and then pump the machining fluid into the third pipe 11. The machining fluid is sprayed onto the workpiece 6 in the first test box 1 through the nozzle device 7, simulating the contact effect between the workpiece 6 and the machining fluid during machining.

[0039] The processing fluid flows through the drainage slope 101 into the drainage port 102 at the bottom of the first test box 1, is injected into the top of the second test box 3 through the first pipe 9, and then contacts the non-woven fabric on the first layer 301 downward, simulating the filtering effect of the non-woven fabric and the foaming of the processing fluid on the non-woven fabric to determine the defoaming performance.

[0040] The machining fluid flows along the holes at the bottom of the first plate 301 to the second plate 302 and contacts the metal particles on the second plate 302. The metal particles are made of the same material as the workpiece 6, but have more contact surface with the machining fluid and are more prone to rust, thereby better observing the impact of the machining fluid on the workpiece 6.

[0041] Example 2:

[0042] like Figure 2 As shown, this embodiment is a preferred solution of embodiment 1, and provides a water-based metalworking fluid performance evaluation device. The nozzle device 7 is a nozzle with a universal tube 701, so as to achieve the effect of adjusting the nozzle angle, better simulate the spraying effect of the processing fluid on the workpiece 6 during on-site processing, and improve the test accuracy.

[0043] Example 3:

[0044] like Figure 3As shown, this embodiment is a preferred solution of embodiment 2, and provides an aqueous metalworking fluid performance evaluation device, including an oil dripping device 8, which includes an oil bottle 801 and an oil dripping nozzle 803. The oil bottle 801 and the oil dripping nozzle 803 are connected through an oil pipe 802, and the oil pipe 802 runs through the side wall of the first test box 1. The oil bottle 801 is arranged on the outside of the first test box 1, and the oil dripping nozzle 803 is arranged on the inside of the first test box 1. The oil bottle 801 stores oil, and the oil dripping nozzle 803 intermittently drips the oil into the first test box 1, thereby achieving mixing of the oil and the processing fluid; the oil in the oil bottle 801 is the same as the oil used in the on-site machine tool. An air intake valve (not shown in the figure) is installed on the top of the oil bottle 801. By adjusting the opening and closing of the air intake valve, the air intake amount of the oil bottle can be adjusted, and then the oil dripping speed of the oil dripping nozzle is adjusted to simulate the situation when the processing fluid is mixed with the oil during the processing, thereby improving the test accuracy.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water-based metalworking fluid performance evaluation device, characterized by: The invention comprises a support (2), a circulation pump (4), a first test box (1) and a second test box (3), wherein the first test box (1) is arranged on the support (2), the bottom of the first test box (1) is connected to the top of the second test box (3) through a first pipe (9), and the bottom surface of the first test box (1) is higher than the top surface of the second test box (3); The bottom of the second test box (3) is connected to the inlet of the circulation pump (4) through a second pipe (10), and the outlet of the circulation pump (4) is connected to the top of the first test box (1) through a third pipe (11); A nozzle device (7) is provided on the top of the inner side of the first test box (1), and the nozzle device (7) is connected to the third pipe (11); A workpiece platform (5) is provided at the bottom of the inner side of the first test box (1), and a workpiece (6) is provided on the workpiece platform (5); Two layers parallel to the horizontal plane are arranged at intervals on the upper and lower sides of the inner side of the second test box (3), and the edges of the layers are detachably connected to the side walls of the test box; The invention comprises an aqueous metalworking fluid, wherein the aqueous metalworking fluid circulates in the order of the first test box (1), the first pipeline (9), the second test box (3), the second pipeline (10), the circulation pump (4), and the third pipeline (11).

2. The water-based metalworking fluid performance evaluation device according to claim 1, characterized in that: The layer plate comprises a first layer plate (301) and a second layer plate (302), wherein the first layer plate (301) is arranged above the second layer plate (302), a non-woven fabric is arranged on the first layer plate (301), and metal particles are arranged on the second layer plate (302).

3. The water-based metalworking fluid performance evaluation device according to claim 1, characterized in that: The nozzle of the nozzle device (7) is provided with a universal tube (701).

4. The water-based metalworking fluid performance evaluation device according to claim 1, characterized in that: The oil dripping device (8) comprises an oil bottle (801) and an oil dripping nozzle (803). The oil bottle (801) and the oil dripping nozzle (803) are connected through an oil delivery pipe (802). The oil dripping nozzle (803) is arranged on the side wall inside the first test box (1).

5. The water-based metalworking fluid performance evaluation device according to claim 1, characterized in that: The connection point between the first test box (1) and the first pipe (9) is a drain outlet (102), and a drainage slope (101) is provided around the drain outlet (102) at the bottom of the first test box (1).

6. The water-based metalworking fluid performance evaluation device according to claim 1, characterized in that: The first test box (1) and the second test box (3) both include at least one transparent side panel.

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