Automatic lubricating oil adding mechanism for punch press

Abstract

The invention provides an automatic lubricating oil adding mechanism for a punching machine, comprising a filling tank, a liquid separation mechanism, a liquid storage tank and an oil discharge assembly; the filling tank and the liquid storage tank are both provided with cavities, and the internal cavity of the filling tank is communicated with the internal cavity of the liquid storage tank; the liquid separation mechanism is arranged between the filling tank and the liquid storage tank; the liquid separation mechanism comprises a liquid separation tank, a rotating shaft and a rotating drum; the liquid separation tank is provided with a cavity, the liquid separation tank is fixedly connected to the filling tank through a first partition plate, and the liquid separation tank is fixedly connected to the liquid storage tank, and a liquid guide groove with an arc length smaller than the arc length of a single side of an arc groove is provided on the rotating drum, and the rotating drum is connected to the crankshaft through a rotating shaft and a reducer, so that the rotating drum can be synchronously operated with the punching machine, and the specifications of the rotating drum can be changed according to the size, specifications and rotation speed of the punching machine, so that the total amount of lubricating oil intercepted by the rotating drum reaches a predetermined addition value, thereby avoiding waste of lubricating oil.

Description

Technical Field

[0001] The invention belongs to the field of mechanical processing, and in particular relates to an automatic lubricating oil adding mechanism for a punch press. Background Art

[0002] Punching machine is a stamping press. In mechanical processing production, stamping processing technology has the following advantages over traditional mechanical processing: saving materials and energy, high efficiency, low technical requirements for operators, and through various mold applications, products that cannot be achieved by traditional mechanical processing can be made, so it has a wide range of uses.

[0003] During the punching machine production process, the crankshaft, slide rail and other parts of the punching machine need to frequently reciprocate. Long-term rotation or friction will cause wear on the surface of the parts. If they are not lubricated and maintained, the service life of the parts will be greatly reduced, and even the parts will be damaged or broken, increasing the cost of use and affecting the progress of production and processing.

[0004] During the use of existing punching machines, workers need to add lubricating oil to the joint mechanisms of the punching machine, such as the crankshaft or slide rail, at regular intervals, which requires workers to be distracted from things other than the production and processing of the punching machine, affects work efficiency, and poses a hidden danger to the workers' personal safety.

[0005] Therefore, we proposed an automatic lubricating oil adding mechanism for punching machines. Summary of the invention

[0006] In view of the above problems, the present invention provides an automatic lubricating oil adding mechanism for a punch press, comprising a filling tank, a liquid separation mechanism, a liquid storage tank and an oil discharge assembly;

[0007] The refueling tank and the liquid storage tank are both provided with cavities, and the internal cavity of the refueling tank is connected with the internal cavity of the liquid storage tank; the liquid separation mechanism is provided between the refueling tank and the liquid storage tank;

[0008] The liquid separation mechanism comprises a liquid separation box, a rotating shaft and a rotating cylinder; a cavity is arranged inside the liquid separation box, the liquid separation box is fixedly connected to the refueling tank through a first partition plate, the liquid separation box is fixedly connected to the liquid storage box, and the upper end of the liquid storage box passes through the liquid separation box and communicates with the internal cavity of the liquid separation box;

[0009] A first guide hole is provided on the first partition plate, and the internal cavity of the liquid separation box is connected with the internal cavity of the refueling tank through the first guide hole;

[0010] The two ends of the rotating shaft are rotatably connected to the two sides of the inner wall of the liquid separation box respectively, the rotating drum is fixedly sleeved on the rotating shaft, and the central axis of the rotating drum and the rotating shaft coincide; the top of the rotating drum is movably clamped in the first guide hole, and a liquid guide groove for intercepting the lubricating oil inside the refueling tank is opened on the curved surface of the rotating drum;

[0011] One end of the oil discharge assembly is communicated with the lower end of the liquid storage tank, and the other end of the oil discharge assembly points to the connection of the transmission mechanism of the punch press. The oil discharge assembly is provided with a solenoid valve.

[0012] The refueling tank comprises a fuel tank and a fixed pipe;

[0013] The oil tank is provided with a cavity, the fixed pipe is vertically arranged, and the fixed pipe penetrates the oil tank and communicates with the internal cavity of the oil tank, the fixed pipe is connected with an external oil storage tank through an oil pipe, and the highest end of the fixed pipe is lower than the lowest end of the external oil storage tank;

[0014] The oil tank is fixedly connected to the liquid separation box through a first partition plate, and the internal cavity of the oil tank is communicated with the internal cavity of the liquid separation box through a first guide hole.

[0015] A floating assembly is movably connected in the oil tank, and the floating assembly includes a vertical rod, a floating ball and a first floating block;

[0016] The central axis of the vertical rod coincides with the central axis of the fixed tube, and the distance from the upper end of the vertical rod to the first partition is greater than the distance from the lower end of the fixed tube to the first partition;

[0017] The first floating block is fixedly connected to the lower end of the vertical rod, the first floating block is movably connected to the oil tank, and the side wall of the first floating block is slidably fitted with the inner wall of the oil tank;

[0018] The density of the first floating block is less than the density of the lubricating oil;

[0019] The float is fixedly sleeved on the vertical rod, the center of the float coincides with the central axis of the vertical rod, and the diameter of the float is larger than the inner diameter of the fixed tube.

[0020] A first groove is formed at the lower end of the first floating block, and the first groove is arranged concentrically with the first floating block;

[0021] A second guide hole is formed at the upper end of the first floating block, and a lower end of the second guide hole is communicated with the first groove;

[0022] A first through groove is formed at the lower end of the first floating block, one end of the first through groove is communicated with the first groove, and the other end of the first through groove is located on the side wall of the first floating block.

[0023] The first guide hole includes a second groove and an arc groove;

[0024] The second groove and the arc groove are respectively provided at the upper and lower ends of the first partition plate, the second groove is aligned with and connected to the arc groove, and the second groove divides the arc groove into two symmetrical parts;

[0025] The rotating drum is movably clamped in the arc groove, the curved surface of the rotating drum is sealed and fitted with the arc groove, and the arc length of the slot of the liquid guiding groove is smaller than the arc length of one side of the arc groove.

[0026] A baffle is arranged in the liquid storage tank, the baffle is arranged vertically, and the upper end of the baffle is fixedly connected to the upper end of the liquid storage tank;

[0027] A gap is left between the side wall of the baffle and the inner wall of the liquid storage tank to form a guide space, and a gap is left between the lower end of the baffle and the inner bottom end of the liquid storage tank.

[0028] A second floating block is movably connected in the guide space, the upper end of the second floating block is higher than the lower end of the baffle, and the density of the second floating block is less than the density of the lubricating oil;

[0029] A second through groove is formed at the lower end of the second floating block, and the second through groove connects the inner and outer sides of the second floating block.

[0030] The upper end of the second floating block is fixedly connected with a first power connection piece, and the guide space is provided with a second power connection piece, and the second power connection piece is provided at a predetermined height position in the guide space;

[0031] The second power terminal is connected to two circuits, which are electrically connected to a power source and a solenoid valve respectively. The first power terminal is used to connect the two circuits on the second power terminal.

[0032] A threaded hole is provided at the lower end of the liquid storage tank, and one end of the oil discharge assembly is threadedly installed in the threaded hole;

[0033] The oil discharge assembly includes a joint and an oil pipe;

[0034] The connectors are provided in two groups, and the two groups of connectors are respectively fixedly connected to the input end and the output end of the solenoid valve, one group of connectors is threadedly installed in the threaded hole, and the other group of connectors is fixedly connected to one end of the oil pipe;

[0035] One end of the oil pipe away from the joint faces the connection of the transmission mechanism on the punch press, and the horizontal height of the one end of the oil pipe away from the joint is lower than that of the other end.

[0036] An oil pump is arranged on the oil pipe, and the oil pump is communicated with the oil pipe; the oil pump is electrically connected to the second electrical terminal.

[0037] A reducer is arranged outside the liquid separation box, the output end of the reducer is drivingly connected to the rotating shaft, and the input end of the reducer is drivingly connected to the crankshaft of the punch press.

[0038] Beneficial effects of the present invention:

[0039] 1. The present invention provides a floating component for controlling the reserve amount of lubricating oil in the oil tank. When the staff temporarily leaves and the oil in the oil tank is insufficient, the external oil storage tank will automatically add lubricating oil to the oil tank. The lubricating oil is added more timely and the transmission mechanism of the punch press will not be worn due to lack of lubrication.

[0040] 2. By opening a liquid guide groove on the drum with an arc length smaller than the arc length of one side of the arc groove, and connecting the drum to the crankshaft through a rotating shaft and a reducer, the drum can be operated synchronously with the punch press, and the specifications of the drum can be changed according to the size, specifications and speed of the punch press, so that the total amount of lubricating oil intercepted by the drum reaches the predetermined addition value, thereby avoiding waste of lubricating oil.

[0041] 3. By using a floating switch to control the opening and closing of the solenoid valve, the effect of adding lubricating oil to the connection of the transmission mechanism of the punch press in a timely and quantitative manner can be achieved. It is easy to use and has low manufacturing cost.

[0042] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic structural diagram of a refueling mechanism according to an embodiment of the present invention is shown;

[0045] Figure 2 A schematic cross-sectional structure diagram of a refueling tank according to an embodiment of the present invention is shown;

[0046] Figure 3 A schematic diagram showing the structure of a floating assembly according to an embodiment of the present invention is shown;

[0047] Figure 4 A schematic structural diagram of a first floating block according to an embodiment of the present invention is shown;

[0048] Figure 5 A schematic structural diagram of a liquid separation mechanism according to an embodiment of the present invention is shown;

[0049] Figure 6 A schematic cross-sectional structure diagram of a first baffle according to an embodiment of the present invention is shown;

[0050] Figure 7 A schematic cross-sectional structure diagram of a liquid storage tank according to an embodiment of the present invention is shown;

[0051] Figure 8 A schematic structural diagram of an oil drain assembly according to an embodiment of the present invention is shown.

[0052] In the figure: 1. refueling tank; 2. liquid dispensing mechanism; 3. liquid storage tank; 4. oil discharge assembly; 5. oil tank; 6. fixed pipe; 7. first partition plate; 8. first guide hole; 10. floating assembly; 11. vertical rod; 12. float; 13. first float block; 14. first groove; 15. second guide hole; 16. first through groove; 17. liquid dispensing tank; 18. rotating shaft; 19. rotating drum; 21. liquid guide groove; 22. reducer; 23. second groove; 24. arc groove; 26. baffle; 27. guide space; 28. second float block; 29. ​​second through groove; 30. first power connection plate; 31. second power connection plate; 32. solenoid valve; 33. threaded hole; 34. joint; 35. oil pipe. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] The present invention provides an automatic lubricating oil adding mechanism for a punch press, comprising a filling tank 1, a liquid separation mechanism 2, a liquid storage tank 3 and an oil discharge assembly 4. Figure 1 As shown, both the refueling tank 1 and the liquid storage tank 3 are provided with cavities, and the internal cavity of the refueling tank 1 and the internal cavity of the liquid storage tank 3 are connected; the internal cavity of the refueling tank 1 is used to store lubricating oil, and the refueling tank 1 can introduce the lubricating oil in its cavity into the liquid storage tank 3; the internal cavity of the liquid storage tank 3 is used to temporarily store the lubricating oil introduced into the refueling tank 1; the liquid separation mechanism 2 is arranged between the refueling tank 1 and the liquid storage tank 3, and the liquid separation mechanism 2 is used to quantitatively extract the lubricating oil in the refueling tank 1 and introduce it into the liquid storage tank 3; one end of the oil discharge component 4 is connected with the lower end of the liquid storage tank 3, and the other end of the oil discharge component 4 points to the transmission mechanism connection of the punch press, which is used to replenish the lubricating oil for the transmission mechanism connection of the punch press, and the oil discharge component 4 is provided with a solenoid valve 32, through which the replenishment amount of the lubricating oil can be controlled.

[0055] Exemplarily, the solenoid valve 32 can be opened / closed at a fixed time, and the lubricating oil in the liquid storage tank 3 can be replenished to the connection of the transmission mechanism of the punch press at a fixed time and in a fixed quantity, thereby improving the efficiency of lubricating oil replenishment and saving labor.

[0056] Two sets of liquid level gauges are arranged in the refueling tank 1, and the two sets of liquid level gauges are respectively arranged at a predetermined minimum value and a predetermined maximum value of the lubricating oil level in the refueling tank 1, and the two sets of liquid level gauges are electrically connected to the alarm device; when the lubricating oil level in the refueling tank 1 is lower than the predetermined minimum value or higher than the predetermined maximum value, the alarm device will sound an alarm to remind the staff to add lubricating oil;

[0057] In addition, a group of external oil storage tanks can be added, and an oil pump can be set between the external oil storage tank and the refueling tank 1, and the input end of the oil pump is connected to the external oil storage tank through an oil pipe, and the output end of the oil pump is connected to the refueling tank 1 through an oil pipe; the switch of the oil pump is associated with the two groups of liquid level gauges, when the lubricating oil level in the refueling tank 1 is lower than a predetermined minimum value, the oil pump is turned on to transport the lubricating oil in the external oil storage tank to the refueling tank 1, and when the lubricating oil level in the refueling tank 1 reaches a predetermined maximum value, the oil pump is turned off and the transportation is stopped; by using the liquid level gauge to control the operation and shutdown of the oil pump, when the staff temporarily leaves due to an emergency, the external oil storage tank and the refueling tank 1 can be connected, and when the lubricating oil in the refueling tank 1 is insufficient, the external oil storage tank will automatically replenish the lubricating oil into the refueling tank 1, and the lubricating oil is added more timely, which will not cause the transmission mechanism of the punch press to wear due to lack of lubrication.

[0058] In actual use, in addition to the above methods, this effect can also be achieved in other ways, as shown below:

[0059] The refueling tank 1 includes a fuel tank 5 and a fixed pipe 6, for example, Figure 2 As shown, a cavity is provided in the oil tank 5, the fixed pipe 6 is vertically arranged, and the fixed pipe 6 passes through the oil tank 5 and is connected with the internal cavity of the oil tank; a first partition plate 7 is provided between the oil tank 5 and the liquid separation mechanism 2, and a first guide hole 8 for limiting the flow rate of lubricating oil is opened on the first partition plate 7, and the lubricating oil stored in the oil tank 5 enters the liquid separation mechanism 2 through the first guide hole 8.

[0060] Furthermore, a floating assembly 10 is movably connected in the oil tank 5 , and the floating assembly 10 is used to control the amount of lubricating oil in the oil tank 5 .

[0061] Specifically, the floating assembly includes a vertical rod 11, a floating ball 12 and a first floating block 13. Figure 3As shown, the central axis of the vertical rod 11 coincides with the central axis of the fixed tube 6, and the distance from the upper end of the vertical rod 11 to the first partition 7 is greater than the distance from the lower end of the fixed tube 6 to the first partition 7; the first float 13 is fixedly connected to the lower end of the vertical rod 11, the first float 13 is movably engaged in the oil tank 5, and the side wall of the first float 13 is slidably fitted with the inner wall of the oil tank 5, and the density of the first float 13 is less than the density of the lubricating oil; the float 12 is fixedly sleeved on the vertical rod 11, the center of the float 12 coincides with the central axis of the vertical rod 11, and the diameter of the float 12 is greater than the inner diameter of the fixed tube 6.

[0062] Exemplarily, the lubricating oil flows into the oil tank 5 through the fixed pipe 6. When the liquid level of the lubricating oil in the oil tank 5 reaches a predetermined height, the first float 13 floats up, and one end of the float 12 is stuck in the lower end of the fixed pipe 6, blocking the path for the external oil storage tank to transport the lubricating oil to the oil tank 5; when the liquid level of the lubricating oil in the oil tank 5 is lower than the predetermined height, the first float 13 falls, and the float 12 moves away from the lower end of the fixed pipe 6, and the path for the external oil storage tank to transport the lubricating oil to the oil tank 5 is reconnected; by using the floating assembly 10 to control the disconnection and connection of the lubricating oil delivery path between the external oil storage tank and the oil tank 5, there is no need for workers to frequently add lubricating oil to the oil tank 5, which saves labor and allows more timely addition of lubricating oil.

[0063] Specifically, a first groove 14 is formed at the lower end of the first floating block 13. Figure 4 As shown, the first groove 14 is arranged concentrically with the first floating block 13; a second guide hole 15 is opened at the upper end of the first floating block 13, and the lower end of the second guide hole 15 is connected with the first groove 14; a first through groove 16 is opened at the lower end of the first floating block 13, one end of the first through groove 16 is connected with the first groove 14, and the other end of the first through groove 16 is located on the side wall of the first floating block 13.

[0064] By opening a second guide hole 15 at the upper end of the first float 13, the lubricating oil can enter the lower part of the first float 13 more quickly through the second guide hole 15; by opening a first through groove 16 at the lower end of the first float 13, and the first through groove 16 connects the inner and outer sides of the first float 13, the first float 13 is easier to float, and will not be adsorbed on the first partition 7 due to the overall adhesion of the lower surface to the first partition 7, so that the floating assembly 10 is more sensitive to use.

[0065] The liquid separation mechanism 2 includes a liquid separation box 17, a rotating shaft 18 and a rotating drum 19. Figure 5As shown, a cavity is provided in the liquid separation box 17, and the liquid separation box 17 is connected to the oil tank 5 through the first partition plate 7, and the internal cavity of the liquid separation box 17 is connected to the internal cavity of the oil tank through the first guide hole; the two ends of the rotating shaft 18 are respectively rotatably connected to the two sides of the inner wall of the liquid separation box 17, and the rotating cylinder 19 is fixedly sleeved on the rotating shaft 18, and the central axis of the rotating cylinder 19 and the rotating shaft 18 coincide; a plurality of groups of liquid guide grooves 21 are opened on the curved surface of the rotating cylinder 19, and the liquid guide grooves 21 are distributed in a circular array around the central axis of the rotating cylinder 19, and the upper end of the rotating cylinder 19 is movably clamped in the first guide hole 8 of the first partition plate 7.

[0066] In actual use, the capacity of the liquid guiding groove 21 can be adjusted according to actual conditions to adapt to punching machines of different specifications, with a wider application range and lower use cost.

[0067] Exemplarily, when the drum 19 rotates ten times, the lubricating oil capacity in the liquid storage tank 3 reaches a predetermined addition value; the rotating shaft 18 is connected to the crankshaft of the punch press, and when the crankshaft rotates, the drum 19 also rotates synchronously, and the liquid guide groove 21 will continuously intercept the lubricating oil in the oil tank 5 and add the intercepted lubricating oil to the liquid storage tank 3; when the punch press stops running, the drum 19 will also stop rotating, so that the lubricating oil temporarily stored in the liquid storage tank 3 is always associated with the running time of the punch press, so as to achieve the effect of adding lubricating oil at a fixed time and quantity; when the rotation speed or size of the punch press changes, and the original specified number of rotations cannot reach or exceeds the predetermined lubricating oil addition value, the capacity of the liquid guide groove 21 can be adjusted to adapt to punch presses of different specifications.

[0068] Furthermore, the first guide hole 8 includes a second groove 23 and an arc groove 24. Figure 6 As shown, the second groove 23 and the arc groove 24 are respectively opened at the upper and lower ends of the first partition 7, the second groove 23 and the arc groove 24 are aligned and connected up and down, and the second groove 23 divides the arc groove into two symmetrical parts; the curved surface of the rotating drum 19 is sealed and fitted with the arc groove 24, and the arc length of the groove opening of the liquid guide groove 21 is smaller than the arc length of one side of the arc groove 24.

[0069] By setting the rotating drum 19 to be sealed with the arc groove 24, and the arc length of the groove opening of the liquid guiding groove 21 is smaller than the arc length of one side of the arc groove 24, when the rotating drum 19 rotates to a predetermined position, one side of the liquid guiding groove 21 is always in contact with the arc groove 24, isolating the oil tank 5 and the liquid separation tank 17, preventing the lubricating oil in the oil tank 5 from flowing directly into the liquid separation tank 17 without passing through the liquid guiding groove 21, so that the liquid separation mechanism 2 can quantitatively intercept the lubricating oil in the oil tank 5 and introduce it into the liquid storage tank 3.

[0070] Furthermore, a reducer 22 is disposed outside the liquid separation box 17 , the output end of the reducer 22 is drivingly connected to the rotating shaft 18 , and the input end of the reducer 22 is drivingly connected to the crankshaft.

[0071] By arranging a reducer 22 outside the liquid separation box 17, and the input and output ends of the reducer 22 are respectively connected to the crankshaft and the rotating shaft 18, the synchronous rotation of the crankshaft and the rotating shaft 18 is achieved;

[0072] For example, when the punch press is running, the rotating shaft 18 will rotate with the crankshaft, so that the liquid separation mechanism 2 continuously intercepts the lubricating oil stored in the oil tank 5 and introduces the intercepted lubricating oil into the liquid storage tank 3. When the lubricating oil temporarily stored in the liquid storage tank 3 reaches a predetermined amount, the oil discharge assembly 4 will introduce the lubricating oil in the liquid storage tank 3 into the connection of the transmission mechanism on the punch press.

[0073] In actual use, the reducer 22 can be replaced by a reduction motor, the output end of the reduction motor is connected to the rotating shaft 18, and the switch of the reduction motor is associated with the switch of the punch press; when the punch press is started, the reduction motor will run at the same time, driving the rotating shaft 18 to rotate, so that the rotating drum 19 will continuously intercept the lubricating oil stored in the oil tank 5, and introduce the intercepted lubricating oil into the liquid storage tank 3. When the lubricating oil temporarily stored in the liquid storage tank 3 reaches a predetermined amount, the lubricating oil is introduced into the connection of the transmission structure on the punch press.

[0074] The liquid storage tank 3 vertically penetrates the lower end of the liquid separation tank 17, and the internal cavity of the liquid storage tank 3 is connected to the internal cavity of the liquid separation tank 17; a hydraulic sensor is fixedly arranged in the liquid storage tank 3, and the hydraulic sensor is electrically connected to the solenoid valve 32. When the lubricating oil temporarily stored in the liquid storage tank 3 reaches the maximum predetermined amount, the solenoid valve 32 will receive the signal from the hydraulic sensor and open, and guide the lubricating oil temporarily stored in the liquid storage tank 3 to the connection of the transmission mechanism on the punch press through the oil discharge assembly 4; when the lubricating oil temporarily stored in the liquid storage tank is lower than the minimum predetermined amount, the solenoid valve 32 will receive the signal from the hydraulic sensor and close.

[0075] In actual use, in addition to the above methods, this effect can also be achieved in other ways, as shown below:

[0076] For example, Figure 7 As shown, a baffle 26 is provided in the liquid storage tank 3, the baffle 26 is vertically arranged, and the upper end of the baffle 26 is fixedly connected to the upper end of the liquid storage tank 3; a gap is left between the side wall of the baffle 26 and the inner wall of the liquid storage tank 3 to form a guide space 27, and a gap is left between the lower end of the baffle 26 and the inner bottom end of the liquid storage tank 3; a second floating block 28 is movably connected in the guide space 27, the density of the second floating block 28 is less than the density of the lubricating oil, the upper end of the second floating block 28 is higher than the lower end of the baffle 26, and the lower end of the second floating block 28 is provided with a second through groove 29, and the second through groove 29 connects the inner and outer sides of the second floating block 28.

[0077] By opening a second through groove 29 at the lower end of the second float 28, and the second through groove 29 connecting the inner and outer parts of the second float 28, the second float 28 is more likely to float when lubricating oil flows into the liquid storage tank 3, and the second float 28 will not be adsorbed on the bottom plate of the liquid storage tank 3 due to the lower surface being entirely attached to the bottom of the liquid storage tank 3, causing the second float 28 to be unable to float.

[0078] Furthermore, a first power contact piece 30 is fixedly connected to the upper end of the second floating block 28 , and a second power contact piece 31 is disposed in the guide space 27 , and the second power contact piece 31 is disposed at a predetermined height position in the guide space 27 .

[0079] Specifically, the second power terminal 31 is connected to two circuits, the two circuits are electrically connected to the power source and the solenoid valve 32 respectively, and the first power terminal 30 is used to connect the two circuits on the second power terminal 31 .

[0080] Illustratively, when the amount of oil in the liquid storage tank 3 reaches a predetermined height, the first electrical terminal 30 on the second float 28 will collide with the second electrical terminal 31, so that the circuit on the second electrical terminal 31 is connected, the solenoid valve 32 opens, and the lubricating oil in the liquid storage tank 3 is introduced into the connection of the transmission mechanism on the punch press through the oil drain assembly 4.

[0081] Furthermore, a threaded hole 33 is formed at the lower end of the liquid storage box 3 , and one end of the oil discharge assembly 4 is threadedly installed in the threaded hole 33 .

[0082] The oil discharge assembly 4 includes a joint 34 and an oil pipe 35. Figure 8 As shown, two groups of connectors 34 are provided, and the two groups of connectors 34 are respectively fixedly connected to the input end and the output end of the solenoid valve 32 , one group of connectors 34 is threadedly installed in the threaded hole 33 , and the other group of connectors 34 is fixedly connected to one end of the oil pipe 35 .

[0083] Specifically, one end of the oil pipe 35 away from the joint 34 faces the connection of the transmission mechanism on the punch press, and the horizontal height of the one end of the oil pipe 35 away from the joint 34 is lower than that of the other end.

[0084] Preferably, an oil pump is provided on the oil pipe 35, and the oil pump is connected to the oil pipe 35; the oil pump is electrically connected to the second power terminal 31. When the first power terminal 30 on the second float 28 conflicts with the second power terminal 31, the solenoid valve 32 and the oil pump will be opened at the same time to transport the lubricating oil in the liquid storage tank 3 to the connection of the conveying mechanism on the punch press. By using the oil pump to transport the lubricating oil in the liquid storage tank, the height of the two ends of the oil pipe 35 does not need to be limited, which is more convenient to use.

[0085] 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 substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic lubricating oil adding mechanism for a punch press, characterized in that: The invention comprises a fuel tank (1), a liquid separation mechanism (2), a liquid storage tank (3) and an oil discharge assembly (4); the fuel tank (1) and the liquid storage tank (3) are both provided with cavities, and the internal cavity of the fuel tank (1) and the internal cavity of the liquid storage tank (3) are in communication; the liquid separation mechanism (2) is arranged between the fuel tank (1) and the liquid storage tank (3); the liquid separation mechanism (2) comprises a liquid separation tank (17), a rotating shaft (18) and a rotating drum (19); the liquid separation tank (17) is provided with a cavity, the liquid separation tank (17) is fixedly connected to the fuel tank (1) via a first partition plate (7), the liquid separation tank (17) is fixedly connected to the liquid storage tank (3), and the upper end of the liquid storage tank (3) is penetrated by a liquid separation tank (17). The first partition plate (7) is provided with a first guide hole (8), and the internal cavity of the liquid separation box (17) is communicated with the internal cavity of the refueling box (1) through the first guide hole (8); the two ends of the rotating shaft (18) are rotatably connected to the two sides of the inner wall of the liquid separation box (17), the rotating cylinder (19) is fixedly sleeved on the rotating shaft (18), and the central axis of the rotating cylinder (19) and the rotating shaft (18) coincide with each other; the top of the rotating cylinder (19) is movably engaged in the first guide hole (8), and a liquid guide groove (21) for intercepting the lubricating oil inside the refueling box (1) is provided on the curved surface of the rotating cylinder (19); One end of the oil discharge assembly (4) is in communication with the lower end of the liquid storage tank (3), and the other end of the oil discharge assembly (4) points to the connection point of the transmission mechanism of the punch press, and the oil discharge assembly (4) is provided with a solenoid valve (32); the refueling box (1) comprises an oil tank (5) and a fixed pipe (6); a cavity is provided in the oil tank (5), the fixed pipe (6) is vertically arranged, and the fixed pipe (6) passes through the oil tank (5) and is in communication with the internal cavity of the oil tank; the fixed pipe (6) is in communication with an external oil storage tank through an oil pipe, and the highest end of the fixed pipe (6) is lower than the lowest end of the external oil storage tank; the oil tank (5) is fixedly connected to the liquid separation box (17) through a first partition plate (7), and the oil tank The internal cavity of the liquid separation box (17) is connected with the internal cavity of the liquid separation box (17) through the first guide hole (8); the first guide hole (8) comprises a second groove (23) and an arc groove (24); the second groove (23) and the arc groove (24) are respectively arranged at the upper and lower ends of the first partition plate (7); the second groove (23) and the arc groove (24) are aligned with each other and connected to each other, and the second groove (23) divides the arc groove into two symmetrical parts; the rotating cylinder (19) is movably engaged in the arc groove (24); the curved surface of the rotating cylinder (19) is sealed and fitted with the arc groove (24); and the arc length of the groove opening of the liquid guide groove (21) is smaller than the arc length of one side of the arc groove (24).

2. The automatic lubricating oil adding mechanism for a punch press according to claim 1, characterized in that: A floating assembly (10) is movably engaged in the oil tank (5), and the floating assembly comprises a vertical rod (11), a floating ball (12), and a first floating block (13); the central axis of the vertical rod (11) coincides with the central axis of the fixed tube (6), and the distance from the upper end of the vertical rod (11) to the first baffle (7) is greater than the distance from the lower end of the fixed tube (6) to the first baffle (7); the first floating block (13) is fixedly connected to the lower end of the vertical rod (11), the first floating block (13) is movably engaged in the oil tank (5), and the side wall of the first floating block (13) is slidably engaged with the inner wall of the oil tank (5); the density of the first floating block (13) is less than the density of lubricating oil; the floating ball (12) is fixedly sleeved on the vertical rod (11), the center of the floating ball (12) coincides with the central axis of the vertical rod (11), and the diameter of the floating ball (12) is greater than the inner diameter of the fixed tube (6).

3. The automatic lubricating oil adding mechanism for a punch press according to claim 2, characterized in that: A first groove (14) is provided at the lower end of the first floating block (13), and the first groove (14) is arranged concentrically with the first floating block (13); a second guide hole (15) is provided at the upper end of the first floating block (13), and the lower end of the second guide hole (15) is communicated with the first groove (14); a first through groove (16) is provided at the lower end of the first floating block (13), one end of the first through groove (16) is communicated with the first groove (14), and the other end of the first through groove (16) is located on the side wall of the first floating block (13).

4. The automatic lubricating oil adding mechanism for a punch press according to claim 1, characterized in that: A baffle (26) is arranged inside the liquid storage tank (3). The baffle (26) is arranged vertically, and the upper end of the baffle (26) is fixedly connected to the upper end of the liquid storage tank (3). A gap is left between the side wall of the baffle (26) and the inner wall of the liquid storage tank (3) to form a guide space (27). A gap is left between the lower end of the baffle (26) and the inner bottom end of the liquid storage tank (3).

5. The automatic lubricating oil adding mechanism for a punch press according to claim 4, characterized in that: A second floating block (28) is movably engaged in the guide space (27); the upper end of the second floating block (28) is higher than the lower end of the baffle (26), and the density of the second floating block (28) is lower than the density of the lubricating oil; a second through groove (29) is formed at the lower end of the second floating block (28), and the second through groove (29) connects the inner and outer sides of the second floating block (28).

6. The automatic lubricating oil adding mechanism for a punch press according to claim 5, characterized in that: The upper end of the second floating block (28) is fixedly connected to a first electrical connection plate (30); a second electrical connection plate (31) is arranged in the guide space (27), and the second electrical connection plate (31) is arranged at a predetermined height position in the guide space (27); the second electrical connection plate (31) is connected to two circuits, the two circuits are electrically connected to a power source and a solenoid valve (32) respectively, and the first electrical connection plate (30) is used to connect the two circuits on the second electrical connection plate (31).

7. The automatic lubricating oil adding mechanism for a punch press according to claim 1, characterized in that: A threaded hole (33) is formed at the lower end of the liquid storage tank (3), and one end of the oil discharge assembly (4) is threadedly installed in the threaded hole (33); the oil discharge assembly (4) comprises a joint (34) and an oil pipe (35); two groups of joints (34) are provided, and the two groups of joints (34) are respectively fixedly connected to the input end and the output end of the solenoid valve (32), one group of the joints (34) is threadedly installed in the threaded hole (33), and the other group of the joints (34) is fixedly connected to one end of the oil pipe (35); one end of the oil pipe (35) away from the joint (34) faces the connection point of the transmission mechanism on the punch press, and the horizontal height of the end of the oil pipe (35) away from the joint (34) is lower than that of the other end.

8. The automatic lubricating oil adding mechanism for a punch press according to claim 7, characterized in that: An oil pump is provided on the oil pipe (35), and the oil pump is in communication with the oil pipe (35); the oil pump is electrically connected to the second electrical terminal (31).

9. The automatic lubricating oil adding mechanism for a punch press according to claim 1, characterized in that: A reducer (22) is arranged outside the liquid separation box (17), the output end of the reducer (22) is drivingly connected to the rotating shaft (18), and the input end of the reducer (22) is drivingly connected to the crankshaft of the punch press.

Images