Gas-liquid mixing structure of ultralow-temperature trace environment-friendly cooling system

Abstract

The utility model relates to the technical field of machining, in particular to a gas-liquid mixing structure of an ultralow-temperature trace environment-friendly cooling system. Comprising a flow dividing capillary tube assembly and an auxiliary nozzle assembly, the auxiliary nozzle assembly is detachably connected with the flow dividing capillary tube assembly and located on the outer side of the flow dividing capillary tube assembly, and the auxiliary nozzle assembly communicates with the flow dividing capillary tube assembly. By means of the air-liquid mixing structure, a part can be rapidly cooled in the cutting process, so that the machining size precision of the part is guaranteed, the product quality is guaranteed, when liquid is an oily solution, a tool and the part can be effectively lubricated in the cutting process under the simultaneous action of compressed air and atomized liquid through the air-liquid mixing structure, and the machining quality is improved. The surface quality precision of the part is ensured, the abrasion of the cutter can be greatly reduced, and the use cost of the cutter is reduced.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a gas-liquid mixing structure of an ultra-low temperature micro-volume environmentally friendly cooling system. Background Technology

[0002] Low-temperature micro-cooling is a typical quasi-dry cutting method. Compressed gas is cooled to 0 to -30°C through multiple stages, mixed with a small amount of lubricating medium, and vaporized to form micron- and nano-sized atomized particles. These particles are then sprayed onto the machining area for lubrication and cooling. It is mainly used for lubrication and cooling in gear hobbing, lathe turning of outer diameters, inner holes, and end faces, as well as in metal cutting, CNC machining center milling, grooving, hole drilling, boring, and general machining equipment cutting.

[0003] In metal cutting, current low-temperature micro-cooling and lubrication systems mostly use compressed air alone or compressed gas after single-stage refrigeration to cool the workpiece, resulting in a high workpiece temperature after machining, which cannot guarantee the required dimensional accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a gas-liquid mixing structure for an ultra-low temperature micro-volume environmentally friendly cooling system, which aims to solve the technical problem that existing low temperature micro-volume cooling and lubrication systems mostly use separate compressed air or compressed gas after single-stage refrigeration to cool the cutting workpiece, resulting in a high workpiece temperature after processing and failing to guarantee the required dimensional accuracy.

[0005] To achieve the above objectives, this utility model employs a gas-liquid mixing structure for an ultra-low temperature micro-volume environmentally friendly cooling system, comprising a diversion capillary assembly and a secondary nozzle assembly. The secondary nozzle assembly is detachably connected to the diversion capillary assembly and is located outside the diversion capillary assembly, and the secondary nozzle assembly is in communication with the diversion capillary assembly.

[0006] The diversion capillary assembly includes an intermediate connector, a first connector, a compression sealing gasket, and an inlet pipe. The first connector is fixedly connected to the intermediate connector and is located below the intermediate connector. The compression sealing gasket is fixedly connected to the intermediate connector and is located inside the intermediate connector. The inlet pipe is detachably connected to the first connector and is located below the first connector.

[0007] The diversion capillary assembly further includes a capillary, a tee connector, an air inlet pipe, and a gas-liquid pipe. The capillary is fixedly connected to the intermediate connector and located above the intermediate connector, and the capillary penetrates the compression sealing gasket. The tee connector is detachably connected to the capillary and located outside the tee connector, and the capillary passes through the other end of the tee connector. The air inlet pipe is detachably connected to the tee connector and located below the tee connector. The gas-liquid pipe is detachably connected to the other end of the tee connector and is located outside the capillary outlet end.

[0008] The auxiliary nozzle assembly includes a second pipe connector, an auxiliary nozzle seat, a universal tube seat end connector, and a universal tube. One end of the second pipe connector is detachably connected to the other end of the gas-liquid pipe and is located outside the gas-liquid pipe. The input end of the auxiliary nozzle seat is fixedly connected to the other end of the second pipe connector and is located outside the second pipe connector. The universal tube seat end connector is fixedly connected to the output end of the auxiliary nozzle seat and is located below the auxiliary nozzle seat. The input end of the universal tube is fixedly connected to the universal tube seat end connector and is located outside the universal tube seat end connector.

[0009] The auxiliary nozzle assembly further includes a universal tube outlet connector, a mixing nozzle, and a gas-liquid mixing outlet. The universal tube outlet connector is fixedly connected to the output end of the universal tube and is located outside the universal tube. The mixing nozzle is fixedly connected to the universal tube outlet connector and is located outside the universal tube outlet connector. The capillary tube extends through the mixing nozzle, and the gas-liquid mixing outlet is fixedly connected to the mixing nozzle and is located outside the mixing nozzle.

[0010] The auxiliary nozzle assembly further includes a base bracket, a bracket screw, and a strong magnetic base. The base bracket is slidably connected to the auxiliary nozzle seat and is located outside the auxiliary nozzle seat. The bracket screw is threadedly connected to the auxiliary nozzle seat and is located outside the base bracket, and the bracket screw passes through the base bracket. The strong magnetic base is fixedly connected to the base bracket and is located above the base bracket.

[0011] The beneficial effects of the gas-liquid mixing structure of this ultra-low temperature micro-volume environmentally friendly cooling system are as follows: When the liquid used is an aqueous solution, the gas-liquid mixing structure, under the simultaneous action of compressed air and atomized liquid, can rapidly cool the parts during cutting, thereby ensuring the dimensional accuracy of the parts and guaranteeing product quality. When the liquid used is an oily solution, the gas-liquid mixing structure, under the simultaneous action of compressed air and atomized liquid, can effectively lubricate the tools and parts during cutting, ensuring the surface quality accuracy of the parts and significantly reducing tool wear and tool usage costs. The diversion capillary assembly effectively solves the problems of easy clogging, leakage, detachment, and cross-contamination of the medium during diversion. It has a simple structure, low cost, high reliability, and can simultaneously transport multiple working media. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the gas-liquid mixing structure of the ultra-low temperature micro-volume environmentally friendly cooling system of this utility model.

[0014] Figure 2 This is a cross-sectional view of the gas-liquid mixing structure of the ultra-low temperature micro-volume environmentally friendly cooling system of this utility model.

[0015] 1-Diverter capillary assembly, 101-Intermediate connector, 102-First pipe connector, 103-Compression sealing gasket, 104-Liquid inlet pipe, 105-Air inlet pipe, 106-T-connector, 107-Gas-liquid pipe, 108-Capillary, 2-Secondary nozzle assembly, 201-Second pipe connector, 202-Secondary nozzle seat, 203-Universal tube seat end connector, 204-Universal tube, 205-Universal tube outlet connector, 206-Mixing nozzle, 207-Gas-liquid mixing outlet, 208-Strong magnetic base, 209-Base bracket, 210-Bracket screw. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0017] Please see Figure 1 and Figure 2 This utility model provides a gas-liquid mixing structure for an ultra-low temperature micro-volume environmentally friendly cooling system, including a diversion capillary assembly 1 and a secondary nozzle assembly 2. The secondary nozzle assembly 2 is detachably connected to the diversion capillary assembly 1 and is located outside the diversion capillary assembly 1. The secondary nozzle assembly 2 is connected to the diversion capillary assembly 1. The diversion capillary assembly 1 can be provided with one or more sets according to the location of the processing cooling point. The secondary nozzle assembly 2 can be provided with one or more sets of connected pipes.

[0018] Furthermore, the diversion capillary assembly 1 includes an intermediate connector 101, a first connector 102, a compression sealing gasket 103, and an inlet pipe 104. The first connector 102 is fixedly connected to the intermediate connector 101 and is located below the intermediate connector 101. The compression sealing gasket 103 is fixedly connected to the intermediate connector 101 and is located inside the intermediate connector 101. The inlet pipe 104 is detachably connected to the first connector 102 and is located below the first connector 102. The inlet pipe 104 is connected to the intermediate connector 101 through the first connector 102. The compression sealing gasket 103 is disposed inside the intermediate connector 101.

[0019] Furthermore, the diversion capillary assembly 1 also includes a capillary 108, a tee connector 106, an air inlet pipe 105, and a gas-liquid pipe 107. The capillary 108 is fixedly connected to the intermediate connector 101 and is located above the intermediate connector 101, and the capillary 108 passes through the compression sealing gasket 103. The tee connector 106 is detachably connected to the capillary 108 and is located outside the tee connector 106, and the capillary 108 passes through the other end of the tee connector 106. The air inlet pipe 105... 05 is detachably connected to the three-way connector 106 and located below the three-way connector 106. The gas-liquid pipe 107 is detachably connected to the other end of the three-way connector 106 and is located outside the outlet end of the capillary tube 108. The capillary tube 108 is connected to the liquid inlet pipe 104 through the first pipe connector 102. The compression sealing gasket 103 fixes the capillary tube 108. The capillary tube 108 and the gas inlet pipe 105 are connected to the gas-liquid pipe 107 together through the three-way connector 106.

[0020] Further, the auxiliary nozzle assembly 2 includes a second pipe connector 201, an auxiliary nozzle seat 202, a universal tube seat end connector 203, and a universal tube 204. One end of the second pipe connector 201 is detachably connected to the other end of the gas-liquid pipe 107 and is located outside the gas-liquid pipe 107. The input end of the auxiliary nozzle seat 202 is fixedly connected to the other end of the second pipe connector 201 and is located outside the second pipe connector 201. The universal tube seat end connector 203 is fixedly connected to the output end of the auxiliary nozzle seat 202 and is located below the auxiliary nozzle seat 202. The input end of the universal tube 204 is fixedly connected to the universal tube seat end connector 203 and is located outside the universal tube seat end connector 203. The gas-liquid pipe 107 is connected to the input end of the auxiliary nozzle seat 202 through the second pipe connector 201, and the universal tube 204 is connected to the output end of the auxiliary nozzle seat 202 through the universal tube seat end connector 203.

[0021] Furthermore, the auxiliary nozzle assembly 2 also includes a universal tube outlet connector 205, a mixing nozzle 206, and a gas-liquid mixing outlet 207. The universal tube outlet connector 205 is fixedly connected to the output end of the universal tube 204 and is located outside the universal tube 204. The mixing nozzle 206 is fixedly connected to the universal tube outlet connector 205 and is located outside the universal tube outlet connector 205. The capillary tube 108 extends through the mixing nozzle 206. The gas-liquid mixing outlet 207 is fixedly connected to the mixing nozzle 206. The connector is fixed and located outside the mixing nozzle 206. Compressed air reaches the mixing nozzle 206 through the second connector, the auxiliary nozzle seat 202, the universal tube seat end connector 203, the universal tube 204, and the universal tube outlet connector 205. The compressed air sprays out atomizes the liquid conveyed by the capillary tube 108 into microparticles, which are then sprayed onto the surface of the part or the machined surface through the mixing nozzle 206. This allows the part to be quickly cooled and lubricated during processing, thereby ensuring the dimensional accuracy of the part and guaranteeing product quality.

[0022] Furthermore, the secondary nozzle assembly 2 also includes a base bracket 209, a bracket screw 210, and a strong magnetic base 208. The base bracket 209 is slidably connected to the secondary nozzle seat 202 and is located on the outside of the secondary nozzle seat 202. The bracket screw 210 is threadedly connected to the secondary nozzle seat 202 and is located on the outside of the base bracket 209, and the bracket screw 210 passes through the base bracket 209. The strong magnetic base 208 is fixedly connected to the base bracket 209 and is located above the base bracket 209. The strong magnetic base 208 is attracted to the working position, and the secondary nozzle seat 202 is fixed to the outside of the base bracket 209 by the bracket screw 210, thereby achieving the fixation of the secondary nozzle seat 202.

[0023] The beneficial effects of this utility model are as follows: The auxiliary nozzle assembly 2 is composed of one or more sets of universal tubes 204, which are fixedly connected to one side of the auxiliary nozzle seat 202. Each set of universal tubes 204 is provided with a capillary tube 108. The outlet of the capillary tube 108 is located at the outlet of the mixing nozzle 206. During operation, the outlet of the mixing nozzle 206 can be aligned with each working point that requires lubrication and cooling. The diversion capillary assembly 1 is used to divert the liquid delivered from the inlet pipe 104 in a small amount, which can be diverted into one or more capillary tubes 108 to deliver the liquid. The liquid is delivered from the inlet pipe 104 to the mixing nozzle through the capillary tubes 108. Compressed air or refrigerant gas entering from the air inlet pipe 105 is connected to the gas-liquid pipe 107 through the three-way connector 106 and the capillary tube 108. The compressed air reaches the mixing nozzle 206 through the second pipe connector 201, the auxiliary nozzle seat 202, the universal tube seat end connector 203, the universal tube 204, and the universal tube outlet connector 205. The compressed air sprays out atomizes the liquid conveyed by the capillary tube 108 into microparticles, which are then sprayed onto the surface of the part or the machined surface through the mixing nozzle 206. This allows the part to be quickly cooled and lubricated during processing, thereby ensuring the dimensional accuracy of the part and guaranteeing product quality.

[0024] This utility model is mainly applied to the rapid cooling and lubrication of cutting tools and parts in metal cutting. Combined with the application of an ultra-low temperature micro-volume environmentally friendly cooling system, it achieves cost reduction and efficiency improvement, environmental protection, and a significant improvement in the workshop production environment. The auxiliary nozzle assembly 2 can be equipped with one or more sets of universal tube 204 assemblies, with the capillary tube 108 outlet located at the outlet of the mixing nozzle 206. Each set of universal tubes 204 contains one capillary tube 108, and the outlet of the capillary tube 108 is located at the outlet of the mixing nozzle 206. During operation, the outlet of the mixing nozzle 206 can be aligned with each working point requiring lubrication and cooling. The diverting capillary tube assembly 1 can be adjusted according to the location of the processing cooling point. One or more sets are to be set up, each set having one or more capillary tubes 108 built in. The diversion capillary assembly 1 has reliable sealing, the capillary tubes 108 do not fall off, and can effectively prevent the leakage of compressed air from the other side, which would prevent the liquid in the capillary tubes 108 from being delivered. One hole of the two holes of the three-way connector 106 is connected to the end of the capillary tube 108 of the diversion capillary assembly 1, and the other hole is connected to the air inlet pipe 105, so that the compressed air or the cooled gas can be connected to the capillary tubes 108 on the other side through the three-way connector 106, and finally reach the outlet of the mixing nozzle 206. The compressed air sprays atomized a small amount of liquid to the parts and tool processing cooling surface to achieve the work.

[0025] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A gas-liquid mixing structure for an ultra-low temperature micro-volume environmentally friendly cooling system, characterized in that, It includes a diversion capillary assembly and a secondary nozzle assembly. The secondary nozzle assembly is detachably connected to the diversion capillary assembly and is located outside the diversion capillary assembly, and the secondary nozzle assembly is in communication with the diversion capillary assembly.

2. The gas-liquid mixing structure of the ultra-low temperature micro-volume environmentally friendly cooling system as described in claim 1, characterized in that, The diversion capillary assembly includes an intermediate connector, a first connector, a compression sealing gasket, and an inlet pipe. The first connector is fixedly connected to the intermediate connector and is located below the intermediate connector. The compression sealing gasket is fixedly connected to the intermediate connector and is located inside the intermediate connector. The inlet pipe is detachably connected to the first connector and is located below the first connector.

3. The gas-liquid mixing structure of the ultra-low temperature micro-volume environmentally friendly cooling system as described in claim 2, characterized in that, The diversion capillary assembly further includes a capillary, a tee connector, an air inlet pipe, and a gas-liquid pipe. The capillary is fixedly connected to the intermediate connector and located above the intermediate connector, and the capillary penetrates the compression sealing gasket. The tee connector is detachably connected to the capillary and located outside the tee connector, and the capillary passes through the other end of the tee connector. The air inlet pipe is detachably connected to the tee connector and located below the tee connector. The gas-liquid pipe is detachably connected to the other end of the tee connector and is located outside the capillary outlet end.

4. The gas-liquid mixing structure of the ultra-low temperature micro-volume environmentally friendly cooling system as described in claim 3, characterized in that, The secondary nozzle assembly includes a second pipe connector, a secondary nozzle seat, a universal tube seat end connector, and a universal tube. One end of the second pipe connector is detachably connected to the other end of the gas-liquid pipe and is located outside the gas-liquid pipe. The input end of the secondary nozzle seat is fixedly connected to the other end of the second pipe connector and is located outside the second pipe connector. The universal tube seat end connector is fixedly connected to the output end of the secondary nozzle seat and is located below the secondary nozzle seat. The input end of the universal tube is fixedly connected to the universal tube seat end connector and is located outside the universal tube seat end connector.

5. The gas-liquid mixing structure of the ultra-low temperature micro-volume environmentally friendly cooling system as described in claim 4, characterized in that, The auxiliary nozzle assembly further includes a universal tube outlet connector, a mixing nozzle, and a gas-liquid mixing outlet. The universal tube outlet connector is fixedly connected to the output end of the universal tube and is located outside the universal tube. The mixing nozzle is fixedly connected to the universal tube outlet connector and is located outside the universal tube outlet connector. The capillary tube extends through the mixing nozzle. The gas-liquid mixing outlet is fixedly connected to the mixing nozzle and is located outside the mixing nozzle.

6. The gas-liquid mixing structure of the ultra-low temperature micro-volume environmentally friendly cooling system as described in claim 5, characterized in that, The secondary nozzle assembly further includes a base bracket, a bracket screw, and a strong magnetic base. The base bracket is slidably connected to the secondary nozzle seat and is located outside the secondary nozzle seat. The bracket screw is threadedly connected to the secondary nozzle seat and is located outside the base bracket, and the bracket screw passes through the base bracket. The strong magnetic base is fixedly connected to the base bracket and is located above the base bracket.

Images