Hydraulic unclamping power device and machine tool equipment

Abstract

The utility model provides a hydraulic unclamping power device and machine tool equipment, and the hydraulic unclamping power device comprises an oil tank used for accommodating oil; the hydraulic oil pump is provided with an input port and an output port, and the input port is communicated with the oil tank; the pressure accumulator assembly is provided with a first oil inlet and a first oil outlet, the first oil inlet is communicated with the output port, the first oil outlet is used for being communicated with the unclamping cylinder, the hydraulic oil pump can pump oil in the oil tank into the pressure accumulator assembly, and the pressure accumulator assembly can release oil to the unclamping cylinder through the first oil outlet so as to drive the unclamping cylinder to loosen a tool; and the pressure regulator is arranged to communicate with the first oil outlet, and the pressure regulator is used for regulating the oil pressure of the oil released by the pressure accumulator assembly. Thus, the device is provided. A pressure cylinder and an air source are not needed, so that the manufacturing cost, energy waste and noise pollution are reduced, the influence of fluctuation of air source pressure on machining production is avoided, meanwhile, the loosening and tightening requirements of different cutters can be met, and safe work of the unclamping cylinder is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automated processing, in particular to a hydraulic knife-beating power device and machine tool equipment. Background Art

[0002] On traditional machine tools, the power source of the knife-breaking power system is a booster cylinder, which is a mechanism that converts air pressure into hydraulic pressure to achieve knife-breaking cylinder to loosen the knife. In the related technology, dry compressed air is introduced into the booster cylinder to push the piston. Under the push of the piston, oil enters the knife-breaking cylinder, pushing the knife-breaking cylinder to perform piston action, thereby achieving knife-breaking cylinder to loosen the knife. This method consumes a large amount of gas and the manufacturing cost of dry compressed air is high, resulting in serious energy waste. At the same time, the noise pollution generated when using gas is serious, and when the air source pressure fluctuates, it is easy to affect the normal operation and processing production of the processing equipment. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a hydraulic knife-beating power device and a machine tool device, which can reduce manufacturing costs, energy waste and noise pollution, and avoid the influence of fluctuations in air source pressure on processing production.

[0004] In the first aspect, an embodiment of the utility model provides a hydraulic knife-cutting power device including: an oil tank for accommodating oil; a hydraulic oil pump, which is provided with an input port and an output port, and the input port is connected to the oil tank; an accumulator assembly, which is provided with a first oil inlet and a first oil outlet, and the first oil inlet is connected to the output port, and the first oil outlet is used to communicate with the knife-cutting cylinder, the hydraulic oil pump can pump the oil in the oil tank into the accumulator assembly, and the accumulator assembly can release the oil to the knife-cutting cylinder through the first oil outlet to drive the knife-cutting cylinder to release the knife; a pressure regulator, which is arranged to be connected to the first oil outlet, and the pressure regulator is used to adjust the oil pressure of the oil released by the accumulator assembly.

[0005] The hydraulic knife-beating power device provided in the first embodiment of the utility model has at least the following beneficial effects:

[0006] By setting up an accumulator assembly and a pressure regulator, the accumulator assembly releases oil to the knife-breaking cylinder to drive the knife-breaking cylinder to loosen the knife. There is no need to set up a booster cylinder and an air source, thereby reducing manufacturing costs, energy waste and noise pollution, and avoiding the impact of air source pressure fluctuations on processing production. At the same time, the pressure regulator can adjust the oil pressure of the oil released by the accumulator assembly, so as to adapt to the tightness requirements of different tools.

[0007] In an embodiment of this implementation mode, the accumulator assembly is provided with a first oil return port, the first oil return port is connected to the oil tank, and the first oil return port is used for allowing the oil released when the knife cylinder tightens the knife to pass through and return to the oil tank.

[0008] In an example of this implementation manner, the accumulator assembly includes an accumulator and an integrated valve block, the accumulator is connected to the integrated valve block, and the first oil inlet, the first oil outlet and the first oil return port are all opened in the integrated valve block.

[0009] In an embodiment of this implementation mode, the hydraulic knife-beating power device includes a reversing valve, the reversing valve is provided with a first oil port, a second oil port and a third oil port, the first oil port is used to communicate with the knife-beating cylinder, the second oil port is connected to the accumulator, the third oil port is connected to the first oil return port, and the first oil port is configured to be able to communicate with the second oil port or the third oil port.

[0010] In an example of this implementation manner, the hydraulic knife-beating power device includes a first pressure detector, and the first pressure detector is used to detect the oil pressure of the oil in the accumulator.

[0011] In an embodiment of this implementation, the hydraulic knife power device includes a controller, the first pressure detector and the hydraulic oil pump are electrically connected to the controller, and the controller can control the operation of the hydraulic oil pump according to the signal of the first pressure detector.

[0012] In one embodiment of this implementation mode, the hydraulic knife power device includes an oil circuit block, and the oil circuit block is provided with a second oil inlet, a second oil outlet, a second oil return port and a reflux port. The second oil inlet is connected to the output port, the second oil outlet is connected to the second oil inlet and the first oil inlet, the second oil return port is connected to the first oil return port, and the reflux port is connected to the second oil return port and the oil tank.

[0013] In one embodiment of this implementation, the hydraulic knife power device includes a one-way valve, which is arranged in the oil circuit between the second oil inlet and the second oil outlet, and the one-way valve can limit the backflow of the oil flowing from the second oil inlet to the second oil outlet.

[0014] In one embodiment of this implementation, the hydraulic knife power device includes a relief valve, which is arranged in the oil circuit between the second oil return port and the return port and is connected to the accumulator. The relief valve can be opened when the oil pressure in the accumulator is greater than a preset value.

[0015] In the second aspect, the embodiment of the utility model also provides a machine tool equipment, which includes a cutting cylinder, a machine tool body and the hydraulic cutting power device described in any embodiment of the first aspect, the cutting cylinder is arranged on the machine tool body, and the hydraulic cutting power device is connected to the cutting cylinder.

[0016] The machine tool equipment provided by the second embodiment of the utility model has at least the following beneficial effects:

[0017] By adding the hydraulic knife-beating power device provided by the utility model to the machine tool equipment, there is no need to set up a booster cylinder and an air source, thereby reducing manufacturing costs, energy waste and noise pollution, and avoiding the impact of fluctuations in air source pressure on processing production. At the same time, the pressure regulator can adjust the oil pressure of the oil released by the accumulator assembly, so as to adapt to the tightness requirements of different tools and ensure the normal operation and safety of the knife-beating cylinder.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of the oil circuit of the hydraulic knife-beating power device provided in the embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the oil tank and hydraulic oil pump and related structural components of the hydraulic knife-beating power device provided in the embodiment of the utility model;

[0022] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of the oil tank, hydraulic oil pump and related structural components from another perspective;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the accumulator assembly and related structural components of the hydraulic knife-beating power device provided in the embodiment of the utility model;

[0024] Figure 5 yes Figure 4 Schematic diagram of the three-dimensional structure of the integrated valve block.

[0025] Reference numerals:

[0026] Hydraulic knife-beating power device 100; knife-beating cylinder 200; oil tank 10; oil filling port 101; hydraulic oil pump 20; input port 201; output port 202; accumulator assembly 30; first oil inlet 301; first oil outlet 302; first oil return port 303; accumulator 31; integrated valve block 32; single-acting valve 33; pressure regulator 40; second pressure detector 41; reversing valve 50; first oil port 501; second oil port 502; third oil port 503; first pressure detector 61; first pressure gauge 62; controller 63; oil circuit block 70; second oil inlet 701; second oil outlet 702; second oil return port 703; reflux port 704; one-way valve 71; overflow valve 72. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] In the related art, a booster cylinder is used as the power source of the hydraulic knife-beating power device, which not only has serious energy consumption and waste, serious noise pollution and affects the normal operation and processing production of the processing equipment, but also has difficulty in adapting to the tightness requirements of different tools. For example, the tightness requirements between tools of different sizes and between different types are different, and the existing hydraulic knife-beating power device is difficult to adapt to them at the same time.

[0033] See also Figure 1 , Figure 1 Schematic diagram of the oil circuit of the hydraulic knife-beating power device 100 provided in the embodiment of the utility model. The embodiment of the utility model provides a hydraulic knife-beating power device 100, which includes an oil tank 10, a hydraulic oil pump 20, an accumulator assembly 30 and a pressure regulator 40. The oil tank 10 is used to accommodate oil. The hydraulic oil pump 20 is provided with an input port 201 and an output port 202, and the input port 201 is connected to the oil tank 10. The accumulator assembly 30 is provided with a first oil inlet 301 and a first oil outlet 302, and the first oil inlet 301 is connected to the output port 202, and the first oil outlet 302 is used to communicate with the knife-beating cylinder 200. The hydraulic oil pump 20 can pump the oil in the oil tank 10 into the accumulator assembly 30. The accumulator assembly 30 can release oil to the knife-beating cylinder 200 through the first oil outlet 302 to drive the knife-beating cylinder 200 to release the knife. The pressure regulator 40 is arranged to be in communication with the first oil outlet 302 , and the pressure regulator 40 is used to adjust the oil pressure of the oil released by the accumulator assembly 30 .

[0034] For details, please refer to Figure 2 and Figure 3 , Figure 2 It is a three-dimensional structural schematic diagram of the oil tank 10 and the hydraulic oil pump 20 and related structural components of the hydraulic knife-beating power device 100 provided in an embodiment of the utility model; Figure 3 yes Figure 2The oil tank 10 and the hydraulic oil pump 20 and the related structural components are shown in a three-dimensional structural diagram from another perspective. The oil tank 10 is provided with an oil filling port 101, and the oil filling port 101 is used for oil to enter the oil tank 10. The hydraulic oil pump 20 is provided with a servo motor. Under the operation of the servo motor, the oil can be pumped into the hydraulic oil pump 20 from the input port 201, and pumped out from the output port 202, and then enter the accumulator assembly 30 through the first oil inlet 301. The accumulator assembly 30 accumulates pressure on the oil, so that the oil is in a high-pressure state. When it is necessary to loosen the knife, the accumulator assembly 30 releases high-pressure oil to the knife-beating cylinder 200 through the first oil outlet 302, and the high-pressure oil drives the piston of the knife-beating cylinder 200 to move along the v1 direction to overcome the elastic force of the spring, thereby completing the loosening of the knife. When it is necessary to tighten the knife, the piston of the knife-beating cylinder 200 can be reset along the v2 direction by relying on the elastic force of the spring, thereby completing the tightening of the knife. The tool-beating cylinder 200 may be selected as a tool-beating cylinder on the main shaft to loosen or tighten the tool on the main shaft.

[0035] By setting up the accumulator assembly 30 and the pressure regulator 40, the accumulator assembly 30 releases oil to the knife-breaking cylinder 200 to drive the knife-breaking cylinder 200 to loosen the knife. There is no need to set up a booster cylinder and an air source, thereby reducing manufacturing costs, energy waste and noise pollution, and avoiding the impact of fluctuations in air source pressure on processing production. At the same time, the pressure regulator 40 can adjust the oil pressure of the oil released by the accumulator assembly 30, so as to adapt to the tightness requirements of different tools and ensure the normal operation and safety of the knife-breaking cylinder 200.

[0036] It is understandable that, in the process of the accumulator assembly 30 releasing oil to drive the knife-breaking cylinder 200 to loosen the knife, the oil in the accumulator assembly 30 gradually decreases, and the output oil pressure of the accumulator assembly 30 will gradually decrease. In order to ensure that the knife-breaking cylinder 200 can loosen the knife smoothly, it is necessary to ensure that the oil pressure of the oil in the accumulator assembly 30 is always greater than the elastic force of the spring in the knife-breaking cylinder 200. However, if the oil pressure of the oil in the accumulator assembly 30 is too high, safety accidents are prone to occur. The existence of the pressure regulator 40 can make the oil pressure output by the accumulator assembly 30 always slightly greater than the elastic force of the spring in the knife-breaking cylinder 200, so that the knife-breaking cylinder 200 can work normally while reducing the risk of safety accidents.

[0037] In one embodiment of this implementation, please refer to Figure 1The accumulator assembly 30 is provided with a first oil return port 303, and the first oil return port 303 is connected to the oil tank 10. The first oil return port 303 is used to allow the oil released when the knife-beating cylinder 200 is tightened to pass through and return to the oil tank 10. It can be understood that when the knife-beating cylinder 200 is tightened, the piston in the knife-beating cylinder 200 moves along the v2 direction under the elastic action of the spring, so that the oil in the knife-beating cylinder 200 is released. By providing the first oil return port 303 on the accumulator assembly 30, the first oil return port 303 can allow the oil released when the knife-beating cylinder 200 is tightened to pass through and return to the oil tank 10, so as to facilitate the circulation of the oil.

[0038] In one embodiment of this implementation, please refer to Figure 1 , Figure 4 and Figure 5 , Figure 4 It is a three-dimensional structural schematic diagram of the accumulator assembly 30 and related structural components of the hydraulic knife-beating power device 100 provided in an embodiment of the utility model; Figure 5 yes Figure 4 The accumulator assembly 30 includes an accumulator 31 and an integrated valve block 32, and the accumulator 31 is connected to the integrated valve block 32. The first oil inlet 301, the first oil outlet 302 and the first oil return port 303 are all provided on the integrated valve block 32. Specifically, the accumulator 31 is used to accommodate high-pressure oil, and the accumulator 31 can release the high-pressure oil into the knife-beating cylinder 200 through the first oil outlet 302 of the integrated valve block 32, thereby completing the knife loosening. The oil released when the knife-beating cylinder 200 tightens the knife can flow back into the oil tank 10 through the first oil return port 303 of the integrated valve block 32. In this way, the first oil inlet 301, the first oil outlet 302 and the first oil return port 303 are integrated on the integrated valve block 32, and the structure is relatively simple, which helps to reduce costs and facilitate maintenance.

[0039] In one embodiment of this implementation, please refer to Figure 1 and Figure 4The hydraulic knife-beating power device 100 includes a reversing valve 50, and the reversing valve 50 is provided with a first oil port 501, a second oil port 502 and a third oil port 503. The first oil port 501 is used to communicate with the knife-beating cylinder 200, the second oil port 502 is communicated with the accumulator 31, and the third oil port 503 is communicated with the first oil return port 303. The first oil port 501 is configured to be communicated with the second oil port 502 or the third oil port 503. Specifically, in this embodiment, the reversing valve 50 is an electromagnetic reversing valve. In other embodiments, the reversing valve 50 can also be a hydraulic reversing valve, a motorized reversing valve, a manual reversing valve or other types of valves. In this embodiment, under the drive of the electromagnetic device, the reversing valve 50 can be configured to switch between a first state and a second state, wherein the first state is that the first oil port 501 is communicated with the second oil port 502, and the second state is that the first oil port 501 is communicated with the third oil port 503. When the reversing valve 50 is in the first state, the high-pressure oil released by the accumulator 31 passes through the first oil port 501 and the second oil port 502 in sequence and enters the knife-breaking cylinder 200, thereby achieving knife loosening. When the reversing valve 50 is in the second state, the high-pressure oil released by the knife-breaking cylinder 200 passes through the third oil port 503 and the first oil port 501 in sequence and flows back to the oil tank 10, thereby achieving knife tightening. By setting the reversing valve 50, the reversing valve 50 can be switched between the first state (connecting the accumulator 31 and the knife-breaking cylinder 200) and the second state (connecting the knife-breaking cylinder 200 and the oil tank 10), so that the knife-breaking cylinder 200 can switch between knife loosening and knife tightening, and the operation is simple and convenient.

[0040] In this embodiment, the hydraulic knife-beating power device 100 includes a single-acting valve 33, which is arranged on the integrated valve block 32 and is located on the oil circuit between the accumulator 31 and the reversing valve 50. The single-acting valve 33 is provided with a switchable conducting oil circuit and a blocking oil circuit. When the knife needs to be loosened, the single-acting valve 33 can be switched to the conducting oil circuit, and the oil in the accumulator 31 can smoothly pass through the conducting oil circuit and enter the reversing valve 50; when the reversing valve 50 needs to be reversed, the single-acting valve 33 can be switched to the blocking oil circuit, and the oil in the accumulator 31 is blocked by the blocking oil circuit and cannot enter the reversing valve 50, so as to reduce the risk of internal leakage of high-pressure oil at the reversing valve 50.

[0041] In one embodiment of this implementation, please refer to Figure 1 and Figure 4The hydraulic knife-beating power device 100 includes a first pressure detector 61, which is used to detect the oil pressure of the oil in the accumulator 31. Specifically, the hydraulic knife-beating power device 100 includes a first pressure gauge 62, which is used to display the oil pressure in the accumulator 31 for workers to view. The first pressure detector 61 is a pressure switch that can convert a pressure signal into a communication signal such as an electrical signal and a gas signal. The first pressure detector 61 and the first pressure gauge 62 are both arranged on the oil circuit between the hydraulic oil pump 20 and the accumulator 31. By providing the first pressure detector 61, it is convenient to monitor the oil pressure of the oil in the accumulator 31, thereby reducing the risk of the accumulator 31 operating at overpressure and causing damage and safety accidents.

[0042] In one embodiment of this implementation, please refer to Figure 1 , Figure 2 and Figure 4 The hydraulic knife-beating power device 100 includes a controller 63, and the first pressure detector 61 and the hydraulic oil pump 20 are both electrically connected to the controller 63. The controller 63 can control the operation of the hydraulic oil pump 20 according to the signal of the first pressure detector 61. Specifically, in the present embodiment, the oil tank 10, the hydraulic oil pump 20 and the controller 63 are stacked in sequence to reduce space occupancy. It can be understood that the controller 63 controls the operation of the hydraulic oil pump 20 according to the signal of the first pressure detector 61 (the pressure of the oil in the accumulator 31), so that the oil in the accumulator 31 can maintain a reasonable oil pressure, so that when the knife is loosened, the oil with a high enough oil pressure can be released to drive the knife-beating cylinder 200 to loosen the knife, and at the same time, the risk of excessive oil pressure of the oil in the accumulator 31 can be reduced.

[0043] In one embodiment of this implementation, please refer to Figure 1 , Figure 2 and Figure 4The hydraulic knife power device 100 includes an oil circuit block 70. The oil circuit block 70 is provided with a second oil inlet 701, a second oil outlet 702, a second oil return port 703 and a return port 704. The second oil inlet 701 is connected to the output port 202, the second oil outlet 702 is connected to the second oil inlet 701 and the first oil inlet 301, the second oil return port 703 is connected to the first oil return port 303, and the return port 704 is connected to the second oil return port 703 and the oil tank 10. Specifically, the oil circuit block 70 is arranged on one side of the hydraulic oil pump 20 and the controller 63. Such an arrangement can reduce the control occupancy. By setting the oil circuit block 70, the oil circuit block 70 connects the hydraulic oil pump 20 and the accumulator assembly 30, and connects the oil tank 10 and the accumulator assembly 30, so that the hydraulic oil pump 20 pumps the oil in the oil tank 10 into the accumulator assembly 30, and the oil released by the cutting cylinder 200 flows back to the oil tank 10 through the accumulator assembly 30. At the same time, the setting of the oil circuit block 70 facilitates the setting of various functional valves between the hydraulic oil pump 20 and the accumulator assembly 30 and between the oil tank 10 and the accumulator assembly 30 (the functional valves are installed on the oil circuit block 70).

[0044] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 The hydraulic knife power device 100 includes a one-way valve 71. The one-way valve 71 is arranged on the oil circuit between the second oil inlet 701 and the second oil outlet 702. The one-way valve 71 can limit the backflow of oil from the second oil inlet 701 to the second oil outlet 702. Specifically, the one-way valve 71 is installed on the oil circuit block 70. By arranging the one-way valve 71 on the oil circuit between the second oil inlet 701 and the second oil outlet 702, it is difficult for the oil in the accumulator 31 to flow back to the hydraulic oil pump 20, thereby reducing the risk of damage to the hydraulic oil pump 20.

[0045] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 The hydraulic knife power device 100 includes a relief valve 72. The relief valve 72 is arranged on the oil circuit between the second oil return port 703 and the return port 704, and is connected to the accumulator 31. The relief valve 72 can be opened when the oil pressure in the accumulator 31 is greater than a preset value. Specifically, the relief valve 72 is installed on the oil circuit block 70. The relief valve 72 is also connected to the second oil outlet 702, and thus connected to the accumulator 31. By setting the relief valve 72, when the oil pressure of the oil in the accumulator 31 is too high, part of the oil can be allowed to return to the oil tank 10 through the relief valve 72, thereby reducing the overpressure operation of the accumulator 31 and reducing the risk of damage and safety accidents.

[0046] In one embodiment of this implementation, please refer to Figure 1The hydraulic knife-breaking power device 100 includes a second pressure detector 41, which is arranged in the oil circuit of the pressure regulator 40. Specifically, the second pressure detector 41 is installed on the integrated valve block 32 and is located in the oil circuit between the pressure regulator 40 and the knife-breaking cylinder 200. The second pressure detector 41 is used to detect the oil pressure of the oil output from the first oil outlet 302 of the integrated valve block 32 to improve the safety of knife-breaking.

[0047] The hydraulic knife-beating power device 100 provided in the embodiment of the utility model is shown in FIG. Figures 1 to 5 , its workflow is as follows:

[0048] When the hydraulic knife-breaking power device 100 does not receive the knife-release command, the oil in the accumulator 31 is pressurized and in a pressure-maintaining state. At this time, the reversing valve 50 and the single-acting valve 33 are both in the original non-powered state, that is, the second oil port 502 of the reversing valve 50 is configured to be blocked, and the blocking oil circuit of the single-acting valve 33 is configured in the oil circuit of the accumulator 31, and the oil in the accumulator 31 is in a pressure-maintaining state. In particular, when the first pressure detector 61 detects that the oil pressure of the oil in the accumulator 31 is lower than the preset value (for example, when the device is just installed), a signal is sent to the controller 63. After receiving the signal, the controller 63 controls the servo motor of the hydraulic oil pump 20 to operate, so that the oil passes through the hydraulic oil pump 20, the oil circuit block 70 and the integrated valve block 32 from the oil tank 10 in sequence and enters the accumulator 31. When the oil pressure of the oil in the accumulator 31 rises to the preset value, the controller 63 controls the servo motor to stop working and maintains the pressure of the oil in the accumulator 31.

[0049] When the hydraulic knife-breaking power device 100 receives the knife-release command, the reversing valve 50 and the single-acting valve 33 are both energized, and the first oil port 501 and the second oil port 502 of the reversing valve 50 are connected, that is, the conducting oil circuit of the single-acting valve 33 is switched to the oil circuit of the accumulator 31, and the second oil port 502 of the reversing valve 50 is connected with the first oil port 501. The high-pressure oil in the accumulator 31 is released into the spindle knife-breaking cylinder 200 through the integrated valve block 32, driving the piston in the spindle knife-breaking cylinder 200 to move under the elastic force of the service spring to achieve knife release. In this process, since the accumulator 31 releases part of the oil, the oil pressure in the accumulator 31 will drop. When the first pressure detector 61 detects that the oil pressure in the accumulator 31 drops below the preset value, the controller 63 controls the servo motor to start to replenish the pressure of the accumulator 31, so that the oil pressure in the accumulator 31 is within the range required for work.

[0050] When the hydraulic knife-cutting power device 100 receives the knife-tightening command, the reversing valve 50 and the single-acting valve 33 are both de-energized, and the accumulator 31 is in a pressure-maintaining state. At the same time, the spindle knife-cutting cylinder 200 is connected to the integrated valve block 32, and the piston of the spindle knife-cutting cylinder 200 is reset under the elastic action of the spring, and the oil in the spindle knife-cutting cylinder 200 returns to the oil tank 10 through the integrated valve block 32 and the oil circuit block 70.

[0051] See also Figure 1 The embodiment of the utility model also provides a machine tool equipment, which can be used for various processing techniques such as turning, drilling, and grinding. The machine tool equipment includes a knife-beating cylinder 200, a machine tool body (not shown) and a hydraulic knife-beating power device 100 provided by the embodiment of the utility model. The knife-beating cylinder 200 is arranged on the machine tool body, and the hydraulic knife-beating power device 100 is connected to the knife-beating cylinder 200. By adding the hydraulic knife-beating power device 100 provided by the utility model to the machine tool equipment, there is no need to set a booster cylinder and an air source, thereby reducing manufacturing costs, energy waste and noise pollution, and avoiding the impact of fluctuations in air source pressure on processing and production. At the same time, the pressure regulator 40 can adjust the oil pressure of the oil released by the accumulator assembly 30, so as to adapt to the tightness requirements of different tools and ensure the normal operation and safety of the knife-beating cylinder 200.

[0052] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A hydraulic knife-beating power device, characterized in that: include: An oil tank, used for containing oil; A hydraulic oil pump is provided with an input port and an output port, wherein the input port is in communication with the oil tank; The accumulator assembly is provided with a first oil inlet and a first oil outlet, wherein the first oil inlet is communicated with the output port, and the first oil outlet is used to communicate with the knife-breaking cylinder. The hydraulic oil pump can pump the oil in the oil tank into the accumulator assembly, and the accumulator assembly can release the oil to the knife-breaking cylinder through the first oil outlet to drive the knife-breaking cylinder to release the knife. A pressure regulator is arranged to be in communication with the first oil outlet, and the pressure regulator is used to adjust the oil pressure of the oil released by the accumulator assembly.

2. The hydraulic knife-beating power device according to claim 1 is characterized in that: The accumulator assembly is provided with a first oil return port, which is connected to the oil tank. The first oil return port is used for allowing the oil released when the knife-tightening cylinder tightens the knife to pass through and return to the oil tank.

3. The hydraulic knife-beating power device according to claim 2 is characterized in that: The accumulator assembly includes an accumulator and an integrated valve block. The accumulator is communicated with the integrated valve block. The first oil inlet, the first oil outlet and the first oil return port are all provided in the integrated valve block.

4. The hydraulic knife-beating power device according to claim 3 is characterized in that: The hydraulic knife-beating power device includes a reversing valve, which is provided with a first oil port, a second oil port and a third oil port. The first oil port is used to communicate with the knife-beating cylinder, the second oil port is connected to the accumulator, and the third oil port is connected to the first oil return port. The first oil port is configured to be connected to the second oil port or the third oil port.

5. The hydraulic knife-beating power device according to claim 3 is characterized in that: The hydraulic knife-beating power device includes a first pressure detector, which is used to detect the oil pressure of the oil in the accumulator.

6. The hydraulic knife-beating power device according to claim 5 is characterized in that: The hydraulic knife-beating power device includes a controller, and the first pressure detector and the hydraulic oil pump are both electrically connected to the controller. The controller can control the operation of the hydraulic oil pump according to the signal of the first pressure detector.

7. The hydraulic knife-beating power device according to claim 2 is characterized in that: The hydraulic knife power device includes an oil circuit block, which is provided with a second oil inlet, a second oil outlet, a second oil return port and a reflux port. The second oil inlet is connected to the output port, the second oil outlet is connected to the second oil inlet and the first oil inlet, the second oil return port is connected to the first oil return port, and the reflux port is connected to the second oil return port and the oil tank.

8. The hydraulic knife-beating power device according to claim 7 is characterized in that: The hydraulic knife-beating power device includes a one-way valve, which is arranged on the oil circuit between the second oil inlet and the second oil outlet, and the one-way valve can limit the backflow of the oil flowing from the second oil inlet to the second oil outlet.

9. The hydraulic knife-beating power device according to claim 7, characterized in that: The hydraulic knife-beating power device includes a relief valve, which is arranged on the oil circuit between the second oil return port and the return port and is connected to the accumulator. The relief valve can be opened when the oil pressure in the accumulator is greater than a preset value.

10. A machine tool device, characterized in that: It comprises a cutting cylinder, a machine tool body and a hydraulic cutting power device according to any one of claims 1 to 9, wherein the cutting cylinder is arranged on the machine tool body, and the hydraulic cutting power device is connected to the cutting cylinder.

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