An online mixing mechanism for cutting fluid with anti-diffusion function

Abstract

An online mixing mechanism for cutting fluid with diffusion prevention is characterized by comprising a machine tool worktable, a plurality of T-shaped grooves are arranged on the machine tool worktable, a telescopic bracket is arranged on the T-shaped grooves of the machine tool worktable, an air pipe is arranged around the machine tool worktable, an oil pipe and a low-temperature compressed air pipe are arranged on the side of the machine tool worktable and connected to the telescopic bracket, and an acceleration protection nozzle is arranged on the top of the telescopic bracket. The mixing mechanism of the present invention can realize online mixing of compressed air and cutting fluid, increase the penetration of the mixed liquid according to the processing object and the processing accuracy requirements, improve the cooling and lubrication effects, improve the processing quality, reduce the diffusion of the mixed liquid after mixing and atomization in the air, and reduce the air pollution of the cutting fluid mist to the processing environment.

Description

Technical Field

[0001] The invention relates to the field of cutting processing, and in particular to an online mixing mechanism for cutting fluid with anti-diffusion function. Background Art

[0002] Green and sustainable production has become the main focus of machine tool processing development. Building a resource-saving and environmentally friendly production environment is the development direction of the manufacturing industry. Cutting fluid not only affects the processing quality of the product, but also directly affects the service life of the tool. In production, the concentration ratio of cutting fluid is generally about 7%. Multiple nozzles are used to cool the workpiece and tool in the form of pouring. The splashing cutting fluid permeates the entire machine. If the machine tool is not well sealed or the chips are blocked, the oil mist, oil smoke, and oil stains generated by the outflow of cutting fluid are not only harmful to human health, but also seriously affect the working environment in the production workshop.

[0003] In order to reduce the impact of poured cooling cutting fluid on the working environment, micro-lubrication cooling technology has been well developed and applied in recent years. Micro-lubrication mixes compressed air with a very small amount of vegetable oil to vaporize, forming micron-sized droplets, which are sprayed at high speed through a nozzle to the workpiece and tool for cooling and lubrication. It is a green cooling and lubrication method. Micro-lubrication technology reduces the amount of cutting fluid used and changes the serious problem of oil dripping on the floor of the production workshop, but the problem of air oil mist and oil fume pollution generated by micro-lubrication technology has not been well solved. A cutting fluid online mixing mechanism with anti-diffusion is mainly used to reduce the diffusion of oil mist, oil fume, etc. generated in micro-lubrication in the air and improve the processing environment. Summary of the invention

[0004] The technical task of the present invention is to solve the deficiencies of the prior art and provide a cutting fluid online mixing mechanism with anti-diffusion.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is: an online mixing mechanism for cutting fluid with anti-diffusion, characterized in that: it includes a machine tool worktable 2, the machine tool worktable 2 is provided with a plurality of T-shaped grooves, a telescopic bracket 6 arranged on the T-shaped grooves of the machine tool worktable 2, an air pipe 3 arranged around the machine tool worktable 2, an oil inlet pipe 4 arranged on the side of the machine tool worktable 2 and connected to the telescopic bracket 6, a low-temperature compressed air pipe 5, and an acceleration protection nozzle 7 arranged at the top of the telescopic bracket 6.

[0006] Furthermore, one end of the air pipe 3 is an air hole 33 , and a ball valve 31 is provided on the air hole 33 .

[0007] Furthermore, the oil inlet pipe 4 includes an oil pipe 1 41 , an oil pipe 2 42 , and a universal tube 43 . The oil pipe 1 41 is connected to the oil pipe 2 42 , and the oil pipe 2 42 is connected to the universal tube 43 .

[0008] Furthermore, the low-temperature compressed air pipe 5 includes an air pipe 2 51 , an air pipe 3 52 , and a universal tube 1 53 . The air pipes 2 51 and 52 are connected, and the air pipe 3 52 is connected to the universal tube 1 53 .

[0009] Furthermore, the telescopic bracket 6 includes a T-slot nut 61, a support tube 1 63, a support tube 2 64, a support tube 3 65, and a hole 4 62 and a hole 1 66 respectively arranged on the support tube 1 63 and the support tube 3 65; the support tube 1 63, the support tube 2 64 and the support tube 3 65 are all hollow, forming a telescopic tube with adjustable height; the supporting tube 1 63 and the T-slot nut 61 have external threads at the mating end, and are threadedly connected to the T-slot nut 61.

[0010] Furthermore, the acceleration protection nozzle 7 includes a protection tube 72, a mixing tube 71 arranged inside the protection tube and matching therewith, a support ring 1 73 and a support ring 2 76 arranged between the mixing tube 71 and the protection tube 72, the mixing tube is provided with symmetrically distributed holes 714, the hole 2 714 is provided with a one-way valve 74, the protection tube is provided with symmetrically distributed holes 726, and the hole 3 726 is connected to the hole 2 714 through a connecting tube 1 75; a piston 77 is provided at the inlet of the protection tube 72; the two ends of the joint 78 are respectively connected to the mixing tube 71 and the universal tube 43; the connecting tube 79 is arranged outside the protection tube 72 and connected to the universal tube 1 53 of the low-temperature compressed gas pipe 5.

[0011] Furthermore, the inner cylindrical surface 722 of the protection tube 72 and the outer ring mating part of the support ring 2 76 are both threaded, and the mixing tube 71 is provided with a positioning column 713 and a positioning column 1 716, and the support ring 1 73 and the support ring 2 76 are positioned on the positioning column 713 and the positioning column 1 716 on the mixing tube 71 through the positioning groove 734 and the positioning groove 1 764.

[0012] Compared with the prior art, the beneficial effects of the present invention are: online mixing of compressed air and cutting fluid is achieved; the accelerated protective nozzle can increase the penetration of the mixed liquid according to the processing object and processing accuracy requirements, improve the cooling and lubrication effects, and improve the processing quality; the accelerated protective nozzle forms a protective tube around the mixed liquid to form the first layer of protection, reducing the diffusion of the mixed liquid after mixed atomization in the air; the low-temperature protective gas hood uses low-temperature gas to condense the atomized mixed gas in the air to reduce the air pollution of the cutting fluid oil mist to the processing environment; the low-temperature protective gas hood forms a closed protective tube to form the second layer of protection to reduce the diffusion of the mixed liquid after mixed atomization in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the online mixing mechanism of the present invention.

[0014] Figure 2It is a schematic diagram of the assembly of the online mixing mechanism of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the acceleration protection nozzle in the present invention.

[0016] Figure 4 It is a cross-sectional view of the acceleration protection nozzle in the present invention.

[0017] Figure 5 It is an exploded view of the acceleration protection nozzle structure in the present invention.

[0018] Figure 6 It is a schematic diagram of the structure of the mixing tube 71 in the present invention.

[0019] Figure 7 It is a schematic diagram of the structure of the protection tube 72 in the present invention.

[0020] Figure 8 It is a schematic diagram of the structure of support ring 1 73 and support ring 2 76 in the present invention.

[0021] Fig. 9 It is a schematic diagram of the structure of the connecting pipe 79 in the present invention.

[0022] Fig.10 It is a schematic diagram of the structure of the piston 77 in the present invention.

[0023] In the figure, 2-machine tool worktable, 3-air pipe, 4-oil pipe, 5-low temperature compressed air pipe, 6-telescopic bracket, 7-acceleration protection nozzle. 31-ball valve, 32-air pipe 1, 33-air hole; 41-oil pipe, 42-oil pipe, 43-universal pipe; 5-low temperature compressed air pipe, 52-air pipe 2, 53-universal pipe 1; 61-T-slot nut, 62-hole, 63-support pipe, 64-support pipe, 65-support pipe, 66-hole; 71-mixing pipe, 72-mixing pipe, 73-support ring, 74-check valve, 75-connecting pipe 1, 76-support ring, 77-piston, 78-joint, 79-connecting pipe. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, the embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] As attached Figure 1As shown, an online mixing mechanism for cutting fluid with diffusion prevention includes a machine tool worktable 2, a plurality of T-shaped grooves are provided on the machine tool worktable 2, a telescopic bracket 6 is arranged on the T-shaped grooves of the machine tool worktable 2, an air pipe 3 is arranged around the machine tool worktable 2, an oil inlet pipe 4, a low-temperature compressed air pipe 5, which are arranged on the side of the machine tool worktable 2 and connected to the telescopic bracket 6, and an acceleration protection nozzle 7 is arranged on the top of the telescopic bracket 6.

[0026] like Figure 2 As shown, one end of the air pipe 3 is an air hole 33, and a ball valve 31 is provided on the air hole 33. The function of the air pipe 3 is to form a low-temperature protective air cover around the workbench to prevent the atomized compressed air from polluting the working environment. The low-temperature compressed air in the air pipe 32 is sprayed into the air through the air hole 33 to form an air column around the workbench to prevent the atomized vegetable oil and compressed air from flowing out. The diameters of the air pipe 32 and the air hole 33 are adjustable, and their flow can be controlled by the ball valve 31.

[0027] The oil inlet pipe 4 includes an oil pipe 1 41 , an oil pipe 2 42 , and a universal tube 43 . The oil pipe 1 41 is connected to the oil pipe 2 42 , and the oil pipe 2 42 is connected to the universal tube 43 .

[0028] The low-temperature compressed air pipe 5 includes an air pipe 2 51 , an air pipe 3 52 , and a universal tube 1 53 . The air pipe 2 51 is connected to the air pipe 3 52 , and the air pipe 3 52 is connected to the universal tube 1 53 .

[0029] The telescopic bracket 6 includes a T-slot nut 61, a support tube 1 63, a support tube 2 64, a support tube 3 65, and a hole 4 62 and a hole 1 66 respectively arranged on the support tube 1 63 and the support tube 3 65; the support tube 1 63, the support tube 2 64 and the support tube 3 65 are all hollow, forming a telescopic tube with adjustable height; the supporting tube 1 63 and the T-slot nut 61 have external threads at the mating end, and are threadedly connected with the T-slot nut 61. The main function of the telescopic bracket 6 is to adjust the position of the acceleration protection nozzle 7 on the workbench.

[0030] The oil pipe 1 41 and the air pipe 2 51 are both inserted through the hole 4 62 of the support pipe 1 63 and are passed out through the hole 1 66 of the support pipe 3 65. The oil pipe 2 42 is a rigid pipe, which is connected to the support pipe 3 65 by threads. In the support pipe 3 65, the oil pipe 1 41 is connected to the oil pipe 2 42; the air pipe 3 52 is a rigid pipe, which is also connected to the support pipe 3 65 by threads. In the support pipe 3 65, the air pipe 2 51 is connected to the air pipe 3 52. The oil pipe 2 42 is connected to the universal pipe 43, and the air pipe 3 52 is connected to the universal pipe 1 53. The universal pipe 43 and the universal pipe 1 53 can adjust the rotation angle of the acceleration protection nozzle 7.

[0031] like Figure 3-Figure 10As shown, the acceleration protection nozzle 7 includes a protection tube 72, a mixing tube 71 arranged inside the protection tube and matching with it, a support ring 1 73 and a support ring 2 76 arranged between the mixing tube 71 and the protection tube 72, and a symmetrically distributed hole 2 714 is provided on the mixing tube, and a one-way valve 74 is provided on the hole 2 714 to ensure that only inflow but not outflow of the hole 2 714. The protection tube 72 is provided with a symmetrically distributed hole 3 726, and the hole 3 726 is connected to the hole 2 714 through a connecting tube 1 75; a piston 77 is provided at the entrance of the protection tube 72; the two ends of the joint 78 are respectively connected to the mixing tube 71 and the universal tube 43; the connecting tube 79 is arranged outside the protection tube 72 and connected to the universal tube 1 53 of the low-temperature compressed gas pipe 5.

[0032] The relative movement seal between the inlet ends of the protection tube 71 and the mixing tube 72 is realized by the piston 77. The outer circumferential surface 771 of the piston 77 cooperates with the inner circumferential surface 722 of the protection tube 72, and the inner circumferential surface 772 of the piston 77 cooperates with the outer circumferential surface 712 of the mixing tube 71. The sealing ring 774 of the piston 77 cooperates with the sealing groove 773 at the inlet of the protection tube, and the sealing ring 776 cooperates with the sealing groove 775. The double seals of the sealing rings 774 and 776 realize the relative movement between the protection tube 72 and the mixing tube 71 while ensuring that the compressed air in the middle does not flow out.

[0033] The inner cylindrical surface 722 of the protection tube 72 and the outer ring 761 of the second support ring 76 are both threaded. The mixing tube 71 is provided with a positioning post 713 and a positioning post 1 716. The first support ring 73 and the second support ring 76 are positioned on the positioning post 713 and the positioning post 1 716 on the mixing tube 71 through the positioning groove 734 and the positioning groove 1 764. When the anti-overflow airflow protection hood is not needed, tighten the protection tube 72 and the mixing tube 71. The result is as follows Figure 7 and Figure 8 When an anti-overflow airflow protection hood is needed, the protection tube 72 and the mixing tube 71 are unscrewed.

[0034] The change of the flow velocity and radius of the overflow protection gas flow can also be changed by changing the angles of the outlet 728 of the protection tube 72 and the outlet 718 of the mixing tube 71. The working mode of the support ring 1 73 is the same as the working principle of the support ring 2 76.

[0035] When in use, the mixed components enter from the oil pipe 2 42 of the oil inlet pipe 4, and enter the mixing tube 71 through the joint 78; the low-temperature compressed air enters through the universal tube 1 53, and enters the connecting tube 79 through the inlet 791. After the ball valve 797 is opened, the low-temperature compressed air enters the air pipe 795, and enters the hole 3 726 of the protection tube 72 through the two outlets 796. The hole 3 726 is connected to the hole 2 714 of the mixing tube 71 through the connecting tube 1 75. The low-temperature compressed air that enters the mixing tube 71 through the hole 2 714 is mixed with the cutting mixed liquid and then flows out through the outlet 718 of the mixing tube 71 and sprayed onto the workpiece to cool and lubricate the workpiece.

[0036] After entering through the universal tube 53, the low-temperature compressed air enters the connecting tube 79 through the inlet 791. After the ball valve 792 on the connecting tube 79 is opened, the low-temperature compressed air enters the air pipe 794 and enters the hole 723 of the protection tube 72 through the outlet 793. The low-temperature compressed air entering through the hole 723 flows in the interlayer between the protection tube 72 and the mixing tube 71, and flows out through the outlet 728 of the protection tube 72.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A cutting fluid online mixing mechanism with diffusion prevention, characterized in that: The invention comprises a machine tool worktable (2), wherein the machine tool worktable (2) is provided with a plurality of T-shaped grooves, a telescopic bracket (6) arranged on the T-shaped grooves of the machine tool worktable (2), an air pipe (3) arranged around the machine tool worktable (2), an oil inlet pipe (4) arranged on the side of the machine tool worktable (2) and connected to the telescopic bracket (6), a low-temperature compressed air pipe (5), and an acceleration protection nozzle (7) arranged on the top of the telescopic bracket (6). The oil inlet pipe (4) comprises an oil pipe 1 (41), an oil pipe 2 (42), and a universal pipe (43). The oil pipe 1 (41) is connected to the oil pipe 2 (42), and the oil pipe 2 (42) is connected to the universal pipe (43). The cryogenic compressed air pipe (5) comprises air pipe 2 (51), air pipe 3 (52), and universal tube 1 (53), wherein air pipe 2 (51) is connected to air pipe 3 (52), and air pipe 3 (52) is connected to universal tube 1 (53). The accelerating protection nozzle (7) comprises a mixing tube (71), a protection tube (72), a first support ring (73) and a second support ring (76), a one-way valve (74), a first connecting tube (75), a piston (77), a joint (78), and a connecting tube (79); the mixing tube (71) is arranged inside the protection tube (72); the first support ring (73) and the second support ring (76) are arranged between the mixing tube (71) and the protection tube (72); the mixing tube (71) is provided with symmetrically distributed holes ( 714, a one-way valve (74) is provided on the second hole (714); the protection tube (72) is provided with symmetrically distributed holes (726), and the third hole (726) is connected to the second hole (714) through a connecting tube (75); a piston (77) is provided at the inlet of the protection tube (72); the two ends of the joint (78) are respectively connected to the mixing tube (71) and the universal tube (43); the connecting tube (79) is provided outside the protection tube (72) and is connected to the universal tube (53).

2. The cutting fluid online mixing mechanism with diffusion prevention according to claim 1, characterized in that: One end of the air pipe (3) is an air hole (33), and a ball valve (31) is provided on the air hole (33).

3. The cutting fluid online mixing mechanism with diffusion prevention according to claim 1, characterized in that: The telescopic bracket (6) comprises a T-slot nut (61), a support tube 1 (63), a support tube 2 (64), a support tube 3 (65), and a hole 4 (62) and a hole 1 (66) respectively arranged on the support tube 1 (63) and the support tube 3 (65); the support tube 1 (63), the support tube 2 (64) and the support tube 3 (65) are all hollow, forming a telescopic tube with adjustable height; the end of the support tube 1 (63) mating with the T-slot nut (61) has an external thread, and is threadedly connected to the T-slot nut (61).

4. The cutting fluid online mixing mechanism with diffusion prevention according to claim 1, characterized in that: The inner cylindrical surface (722) of the protection tube (72) and the outer ring mating portion of the second support ring (76) are both threaded, and the mixing tube (71) is provided with a positioning column (713) and a first positioning column (716), and the first support ring (73) and the second support ring (76) are positioned on the positioning column (713) and the first positioning column (716) on the mixing tube (71) through the positioning groove (734) and the first positioning groove (764).

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