An internal oil supply, lubrication and chip removal structure

Abstract

The present invention provides an internal oil supply, lubrication and waste chip removal structure, including an oil pump, a pressurized air source, a tee and a mold unit; the horizontal end of the tee receives the lubricating medium from the oil pump; the vertical top end of the tee is provided with an inlet of the mold unit; the vertical bottom end of the tee is provided with a pressurized air source, and is arranged directly opposite to the inlet; the mold unit includes a fixed unit, a die insert and a slider, the die insert is fixed by a fixed block, and the die insert is also provided with an air inlet to enable the mixed lubricating medium to enter the die cavity; the die insert is also provided with a slider, and the slider is also provided with an air groove, and the gas passing through the pressurized air source passes through the air groove to reach the side wall of the die insert and the surface of the sheet material. The present invention is conducive to the pressurized air source to blow away the metal waste chips in the insert cavity, so as to achieve the effect of precise lubrication and increase the life of the workpiece; it is conducive to the quantitative oil supply equipment to provide a quantitative lubricating medium to the tee for each stamping, which is converted into oil mist through high-pressure air pressure and transported to the key parts in the mold.

Description

Technical Field

[0001] The invention mainly relates to the field of thick plate stamping, and in particular to an internal oil supply, lubrication and waste chip removal structure. Background Art

[0002] During the thick plate stamping process, metal scraps will accumulate in the die insert, causing abrasive wear and reducing the life of the die insert. In addition, the lubricating medium cannot be accurately delivered during the stamping process, resulting in a large amount of oil waste and failing to achieve the actual lubrication effect.

[0003] The Chinese invention patent has been published, application number CN201310592561.0, patent name: a fine stamping die lubrication device, application date: 2013-11-22, the present invention relates to a device that can effectively improve the lubrication of the die during the fine stamping process. A fine stamping die lubrication device, which includes a pressure pad, a punch, a V-shaped blank holder, and a counter-thrust rod on the fine stamping die, the pressure pad is located above the punch; the counter-thrust rod is connected to the hydraulic plunger; the V-shaped blank holder is fixed on the upper mold plate; the inner side of the V-shaped blank holder near the cutting edge of the punch is provided with a chamfer, and an oil storage tank is formed between the V-shaped blank holder and the punch; the outer side of the counter-thrust rod near the cutting edge of the die contains a chamfer, and an oil storage tank is formed between the counter-thrust rod and the die; the feature is that a vibration generator is fixed between the pressure pad and the punch. The present invention continuously brings the lubricating oil in the oil storage tank to the friction surface through vibration; this device can effectively improve the lubrication effect in the composite fine stamping forming process and extend the life of the die. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the present invention provides an internal oil supply lubrication and waste chip removal structure, including an oil pump, a pressurized air source 12, a tee 13 and a mold unit;

[0005] The horizontal end of the tee 13 receives the lubricating medium from the oil pump;

[0006] The vertical top end of the tee 13 is provided with an inlet of the mold unit;

[0007] A pressurized air source 12 is provided at the vertical bottom end of the tee 13 and is arranged directly opposite to the feed inlet;

[0008] The mold unit includes a fixed block 17, a die insert 15 and a slider 16. The die insert 15 is fixed by the fixed block 17. The die insert 15 is also provided with an air inlet 18 to enable the mixed lubricating medium to enter the die cavity. The die insert 15 is also provided with a slider 16. The slider 16 is also provided with an air groove 19. The gas passing through the pressurized air source 12 passes through the air groove 19 to reach the side wall of the die insert 15 and the surface of the sheet material.

[0009] Preferably, air grooves 19 are provided around the outer periphery and inner periphery of the slider 16 .

[0010] Preferably, the air inlet hole 18 is arranged at the horizontal middle of the side of the female mold insert 15 .

[0011] Preferably, the slider 16 is disposed in the die insert 15 for up and down reciprocating motion.

[0012] Preferably, the oil pump comprises a housing 1, an oil supply piston 2, an end cover 3, a return spring 4, a tightening nut 5 and an adjusting handle 6;

[0013] The right side of the housing 1 is provided with an oil inlet 8 and an oil outlet 9 whose connecting lines intersect and are perpendicular to each other. The left side of the housing 1 is horizontally and coaxially installed with an end cover 3, a tightening nut 5 and an adjusting handle 6 in sequence. The side of the housing 1 located above the end cover 3 is penetrated by an air inlet and outlet 7.

[0014] An oil supply piston 2 is provided on the side of the shell 1 close to the end cover 3, and an air chamber 10 is formed between the shell 1, the end cover 3 and the oil supply piston 2. A return spring 4 is sleeved on the side of the oil supply piston 2 close to the oil outlet 9, and an oil chamber 11 is formed between the oil supply piston 2, the oil inlet 8 and the oil outlet 9.

[0015] Preferably, a one-way valve is installed on the oil inlet 8 and the oil outlet 9 respectively.

[0016] Preferably, sealing rings are provided on both the right and left sides of the oil supply piston 2 .

[0017] Beneficial effects of the present invention:

[0018] 1. Economical, accurate, effective and simple;

[0019] 2. It is beneficial to use the pressurized air source to blow away the metal scraps in the insert cavity, so as to achieve the effect of precise lubrication and increase the life of the workpiece;

[0020] 3. It is conducive to quantitative oil supply. The equipment provides quantitative lubricating medium to the tee each time stamping, which is converted into oil mist by high-pressure air pressure and transported to the key parts of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present invention;

[0022] Figure 2 It is a structural diagram of the mold unit in the present invention;

[0023] Figure 3 for Figure 2 AA section view;

[0024] Figure 4 for Figure 2 An enlarged view of the die insert;

[0025] Figure 5 for Figure 2 A zoomed in picture of the slider;

[0026] In the figure,

[0027] 1. Housing; 2. Oil supply piston; 3. End cover; 4. Return spring; 5. Tightening nut; 6. Adjusting handle; 7. Air inlet and outlet; 8. Oil inlet; 9. Oil outlet; 10. Air chamber; 11. Oil chamber; 12. Pressurized air source; 13. Tee; 15. Die insert; 16. Slider; 17. Fixed block; 18. Air inlet; 19. Air groove. DETAILED DESCRIPTION

[0028] In order to make the technical solution of the present invention better understood by the technical personnel in the field, and to make the above-mentioned features, purposes and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with the embodiments. The embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1-5 As shown, the present invention includes: an oil pump, a pressurized air source 12, a tee 13 and a mold unit;

[0030] The horizontal end of the tee 13 receives the lubricating medium from the oil pump;

[0031] The vertical top end of the tee 13 is provided with an inlet of the mold unit;

[0032] A pressurized air source 12 is provided at the vertical bottom end of the tee 13 and is arranged directly opposite to the feed inlet;

[0033] The mold unit includes a fixed block 17, a die insert 15 and a slider 16. The die insert 15 is fixed by the fixed block 17. The die insert 15 is also provided with an air inlet 18 to enable the mixed lubricating medium to enter the die cavity. The die insert 15 is also provided with a slider 16. The slider 16 is also provided with an air groove 19. The gas passing through the pressurized air source 12 passes through the air groove 19 to reach the side wall of the die insert 15 and the surface of the sheet material.

[0034] During use, the lubricating medium is accurately delivered to the key component positions through the small flow rate and fine-tunable oil supply equipment combined with the pressurized air source and the sophisticated mold structure. The booster pump increases the pressure from 0.6Mpa to 1.2Mpa to raise a certain amount of lubricating medium to the mold end at high speed. After the action of high-pressure air pressure, part of the lubricating medium will become oil mist and be delivered to the key parts through the groove structure set on the hose and the slider.

[0035] In this embodiment, preferably, air grooves 19 are provided around the outer periphery and inner periphery of the slider 16 .

[0036] The above structure and the arrangement of multiple air grooves 19 enable the lubricating medium to be dispersed in multiple directions, thereby improving the lubrication effect.

[0037] In the present embodiment, the air inlet hole 18 is preferably arranged at the horizontal middle of the side of the die insert 15 .

[0038] With the above structure, the die insert 15 plays the role of punching the plate, and metal scraps are easily accumulated inside. After the structure is changed, an air inlet hole 18 is added on the side to facilitate the high-pressure gas mixed with the lubricating medium to enter the die cavity.

[0039] In this embodiment, preferably, the slider 16 is disposed in the die insert 15 for up and down reciprocating motion.

[0040] With the above structure, the slider 16 plays the role of ejecting the workpiece and reciprocates up and down in the concave mold cavity. After the structure is changed, an air groove 19 is added to the local key position of the slider 16 to facilitate the high-pressure gas mixed lubricating medium to be sprayed from the concave mold insert 15 to the surface of the plate. At the same time, the liquid lubricating medium can be evenly applied to the side wall of the concave mold insert 15 during the reciprocating motion of the slider.

[0041] In this embodiment, the oil pump preferably includes a housing 1, an oil supply piston 2, an end cover 3, a return spring 4, a tightening nut 5 and an adjustment handle 6;

[0042] The right side of the housing 1 is provided with an oil inlet 8 and an oil outlet 9 whose connecting lines intersect and are perpendicular to each other. The left side of the housing 1 is horizontally and coaxially installed with an end cover 3, a tightening nut 5 and an adjusting handle 6 in sequence. The side of the housing 1 located above the end cover 3 is penetrated by an air inlet and outlet 7.

[0043] An oil supply piston 2 is provided on the side of the shell 1 close to the end cover 3, and an air chamber 10 is formed between the shell 1, the end cover 3 and the oil supply piston 2. A return spring 4 is sleeved on the side of the oil supply piston 2 close to the oil outlet 9, and an oil chamber 11 is formed between the oil supply piston 2, the oil inlet 8 and the oil outlet 9.

[0044] With the above structure, the small flow oil pump is suitable for occasions in the stamping industry where a small amount of lubrication is required locally. The oil output of each pump ranges from 0 to 3ML. The oil pump can be installed separately according to the needs of different workstations, and the pump oil volume can be adjusted separately for each workstation.

[0045] In this embodiment, preferably, a one-way valve is installed on the oil inlet 8 and the oil outlet 9 respectively.

[0046] With the above structure, the oil inlet 8 and the oil outlet 9 are respectively installed with a one-way valve according to functional requirements.

[0047] In this embodiment, preferably, sealing rings are provided on the right and left sides of the oil supply piston 2 .

[0048] With the above structure, a sealing ring is arranged on the right side of the oil supply piston 2 for sealing the oil, and a sealing ring is arranged on the left side for sealing the gas.

[0049] The above embodiments are merely illustrative of the principles and effects of this patent application, and are not intended to limit this patent application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of this patent application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in this patent application should still be covered by the claims of this patent application.

Claims

1. An internal oil supply lubrication and waste chip removal structure, characterized in that: It includes an oil pump, a pressurized air source (12), a three-way connection (13) and a mold unit; The horizontal end of the tee (13) receives lubricating medium from the oil pump; The vertical top end of the tee (13) is provided with an inlet for the mold unit; A pressurized air source (12) is provided at the vertical bottom end of the tee (13) and is arranged directly opposite to the feed inlet; The mold unit comprises a fixed block (17), a die insert (15) and a slider (16); the die insert (15) is fixed by the fixed block (17); the die insert (15) is also provided with an air inlet (18) to allow a mixed lubricating medium to enter the die cavity; the die insert (15) is also provided with a slider (16); the slider (16) is also provided with an air groove (19); the gas passing through the pressurized air source (12) passes through the air groove (19) and reaches the side wall of the die insert (15) and the surface of the sheet material; The slider (16) is provided with air grooves (19) around its periphery and inner periphery; The air inlet hole (18) is arranged at the horizontal middle of the side of the die insert (15); The slider (16) is arranged in the die insert (15) to reciprocate up and down; The oil pump comprises a housing (1), an oil supply piston (2), an end cover (3), a return spring (4), a tightening nut (5) and an adjustment handle (6); The right side of the housing (1) is provided with an oil inlet (8) and an oil outlet (9) whose connecting lines intersect and are perpendicular to each other; the left side of the housing (1) is horizontally and coaxially mounted with an end cover (3), a tightening nut (5) and an adjustment handle (6) in sequence; and the side of the housing (1) located above the end cover (3) is penetrated by an air inlet and an air outlet (7); An oil supply piston (2) is arranged on a side of the housing (1) close to the end cover (3); an air chamber (10) is formed between the housing (1), the end cover (3) and the oil supply piston (2); a return spring (4) is sleeved on a side of the oil supply piston (2) close to the oil outlet (9); an oil chamber (11) is formed between the oil supply piston (2), the oil inlet (8) and the oil outlet (9); and one-way valves are respectively installed on the oil inlet (8) and the oil outlet (9); Sealing rings are provided on the right and left sides of the oil supply piston (2).

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