Hydraulic control device and method for hydraulic machine

Abstract

The invention relates to the technical field of hydraulic machines, in particular to a hydraulic machine hydraulic control device and method.The hydraulic machine hydraulic control device comprises a workbench and a hydraulic mechanism, and the hydraulic mechanism comprises two supporting plates, a plurality of supporting pads, a barometer, a locking assembly, two protection assemblies, a hydraulic assembly, a pressed assembly and a power supply assembly; a warning column in an existing protection assembly can remind a worker of use safety in a light-emitting and sound-making mode, a locking motor in a locking assembly immediately drives a threaded rod after receiving a stopping command, a movable sleeve and a locking plate move upwards, connection with a hydraulic air cylinder is blocked from the interior of the workbench, the process is rapid in response, use is safe, and the working efficiency is improved. The problems that the hydraulic cylinder is still connected with a liquid conveying pipe and an oil tank after being stopped, the stopping effect is common, the hydraulic cylinder still tends to continue to move, and use is dangerous are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic presses, and in particular to a hydraulic control device and a control method for a hydraulic press. Background Art

[0002] A hydraulic press is a machine that uses liquid as a working medium and is made according to Pascal's principle to transfer energy to achieve various processes. Most of the existing hydraulic presses have no safety protection, and safety accidents are very likely to occur in actual work. Moreover, during the pressure application process of the hydraulic press, the control of the hydraulic oil is generally only controlled by a pump to extract it. This method is difficult to control in actual operation when there is a safety hazard and an emergency stop is required.

[0003] In the prior art, the patent (CN111645358A) proposes a safety-type frame-type hydraulic press control device, including a hydraulic module, a safety protection module, a hydraulic oil tank, a cylinder and an infusion tube. The hydraulic module includes an upper crossbeam, a workbench, a column, a hydraulic part and a hydraulic cylinder; the safety protection module includes a first screw, a first motor, a guide rod, a base, a second screw, a second motor, a support plate, a buffer seat and a fixed block. The invention uses hydraulic oil extraction to control the pressure of the hydraulic press. In an emergency, it is only necessary to stop the extraction to stop the hydraulic press from working. In addition, a safety protection module is provided. The combination of the two can protect the safety of the operator and avoid accidents in an emergency. The modules cooperate with each other, have strong integrity, and a wide range of practical applications, and can be widely used in the hydraulic field.

[0004] However, in the above-mentioned prior art, the hydraulic cylinder is still connected to the infusion tube and the oil tank after stopping, and the stopping effect is general. The hydraulic cylinder still has a tendency to continue to move, which is dangerous to use. Summary of the invention

[0005] The purpose of the present invention is to provide a hydraulic control device and control method for a hydraulic press, which solves the problem in the prior art that the hydraulic cylinder is still connected to the fluid pipe and the oil tank after stopping, the stopping effect is general, the hydraulic cylinder still has a tendency to continue to move, and the use is dangerous.

[0006] To achieve the above-mentioned objectives, the present invention provides a hydraulic control device of a hydraulic press, comprising a workbench and a hydraulic mechanism, wherein the hydraulic mechanism comprises two support plates, a plurality of support pads, a pressure gauge, a locking assembly, two protective assemblies, a hydraulic assembly, a pressure-bearing assembly and a power supply assembly, wherein the power supply assembly is fixedly connected to the workbench and is located on the back side of the workbench, the pressure-bearing assembly is fixedly connected to the workbench and is located on the inner side of the workbench, the hydraulic assembly is fixedly connected to the workbench and is located above the workbench, the two protective assemblies are fixedly connected to the workbench and are respectively located on both sides of the workbench, the locking assembly is fixedly connected to the workbench and is located on the inner bottom of the workbench, the pressure gauge is fixedly connected to the workbench and is located on the front side of the workbench, each of the support pads is respectively fixedly connected to the corresponding support plate and is respectively located below the corresponding support plate, and the two support plates are fixedly connected to the workbench and are respectively located on both sides of the workbench.

[0007] Wherein, the locking assembly includes a locking motor, a threaded rod, a movable sleeve, a sliding rod and a locking plate, the locking plate is fixedly connected to the movable sleeve and is located on one side of the movable sleeve, the sliding rod is slidably connected to the movable sleeve and is located on the other side of the movable sleeve, the movable sleeve is rotatably connected to the threaded rod and is located on the circumference of the threaded rod, the upper end of the threaded rod is rotatably connected to the workbench and is located on the inner side of the workbench, the lower end of the threaded rod is fixedly connected to the output end of the locking motor, and the locking motor is fixedly connected to the workbench and is located at the inner bottom of the workbench.

[0008] Each of the protection components includes a protection frame and a warning column, wherein the warning column is fixedly connected to the protection frame and is located on one side of the protection frame, and the protection frame is fixedly connected to the workbench and is located on one side of the workbench.

[0009] Among them, the hydraulic assembly includes a hydraulic cylinder, a hydraulic block and a limit rod, the limit rod is fixedly connected to the workbench and is located on the front side of the workbench, one side of the hydraulic block is slidably connected to the limit rod and is located on the peripheral side of the limit rod, the upper side of the hydraulic block is fixedly connected to the output end of the hydraulic cylinder, and the hydraulic cylinder is fixedly connected to the workbench and is located on the inner top of the workbench.

[0010] Wherein, the pressure-bearing component includes a processing plate and two control blocks, the two control blocks are fixedly connected to the processing plate and are located on one side of the processing plate, and the processing plate is fixedly connected to the workbench and is located on the inner side of the workbench.

[0011] The power supply assembly includes a power supply rack and a power supply box, wherein the power supply box is fixedly connected to the power supply rack and is located above the power supply rack, and the power supply rack is fixedly connected to the workbench and is located on the back side of the workbench.

[0012] Among them, the hydraulic control device of the hydraulic press also includes a side plate, a fan and a duct, the duct is fixedly connected to the output end of the fan, the fan is fixedly connected to the side plate and is located above the side plate, and the side plate is fixedly connected to the workbench and is located on one side of the workbench.

[0013] The present invention also provides a hydraulic pressure control method for a hydraulic press, which is applied to the hydraulic pressure control device for a hydraulic press as described above, and comprises the following steps:

[0014] First, the power supply box is opened to provide power to the overall structure of the workbench, and one of the control blocks is controlled to control the locking motor to move the movable sleeve and the locking plate downward;

[0015] After the hydraulic cylinder is powered on, it drives the hydraulic block to work normally, during which the limit rod corrects the movement of the hydraulic block;

[0016] When the hydraulic cylinder is stopped in an emergency, one of the control blocks is controlled to drive the locking motor to rotate, and the movable sleeve and the locking block are moved in the workbench through the threaded rod;

[0017] The pipe in the workbench is squeezed to stop, and after the transmission is blocked, the power supply of the power supply box is turned off, and the workbench is moved away, and the warning column outside the protection frame emits an alarm and flashes.

[0018] The present invention provides a hydraulic control device and control method for a hydraulic press. The warning column in the protective assembly can remind the staff of safe use by emitting light and making sounds. The locking motor in the locking assembly immediately drives the threaded rod after receiving the stop command, moves the movable sleeve and the locking plate upward, and blocks the connection with the hydraulic cylinder from the inside of the workbench. The process responds quickly and is safe to use. It solves the problem that the hydraulic cylinder is still connected to the infusion tube and the oil tank after stopping, the stopping effect is general, and the hydraulic cylinder still has a tendency to continue to move, which is dangerous to use. A retractable hose is provided at the upper end of the conduit. The staff can clean the space between the processing plate and the two protective frames by holding the hose. At the same time, the hydraulic block and the hydraulic cylinder are cooled by air cooling. The side panel provides installation support for the fan and provides power through the power supply box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0020] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0021] Figure 2 It is a front view of the first embodiment of the present invention.

[0022] Figure 3 The present invention Figure 2 AA line section view.

[0023] Figure 4 It is a right side view of the first embodiment of the present invention.

[0024] Figure 5 It is a right side view of the second embodiment of the present invention.

[0025] Figure 6 It is a flow chart of the steps of a hydraulic control method of a hydraulic press of the present invention.

[0026] 101-workbench, 102-hydraulic mechanism, 103-support plate, 104-support pad, 105-pressure gauge, 106-locking assembly, 107-protection assembly, 108-hydraulic assembly, 109-pressure assembly, 110-power supply assembly, 111-locking motor, 112-threaded rod, 113-movable sleeve, 114-sliding rod, 115-locking plate, 116-protection frame, 117-warning column, 118-hydraulic cylinder, 119-hydraulic block, 120-limiting rod, 121-processing plate, 122-control block, 123-power supply rack, 124-power supply box, 201-side panel, 202-fan, 203-duct. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0028] The first embodiment of the present application is:

[0029] See also Figure 1-Figure 4 ,in Figure 1 is a schematic diagram of the overall structure of the first embodiment of the present invention, Figure 2 is a front view of a first embodiment of the present invention, Figure 3 The present invention Figure 2 AA line section view, Figure 4 It is a right side view of the first embodiment of the present invention.

[0030] The present invention provides a hydraulic control device for a hydraulic press, comprising a workbench 101 and a hydraulic mechanism 102, wherein the hydraulic mechanism 102 comprises two support plates 103, a plurality of support pads 104, a pressure gauge 105, a locking assembly 106, two protective assemblies 107, a hydraulic assembly 108, a pressure-bearing assembly 109 and a power supply assembly 110, wherein the locking assembly 106 comprises a locking motor 111, a threaded rod 112, a movable sleeve 113, a sliding rod 114 and a locking plate 115, each of the protective assemblies 107 comprises a protective frame 116 and a warning column 117, the hydraulic assembly 108 comprises a hydraulic cylinder 118, a hydraulic block 119 and a limit rod 120, the pressure-bearing assembly 109 comprises a processing plate 121 and two control blocks 122, and the power supply assembly 110 comprises a power supply rack 123 and a power supply box 124.

[0031] According to this specific embodiment, the power supply component 110 is fixedly connected to the workbench 101, the pressure component 109 is fixedly connected to the workbench 101, the hydraulic component 108 is fixedly connected to the workbench 101, the two protection components 107 are fixedly connected to the workbench 101, the locking component 106 is fixedly connected to the workbench 101, the barometer 105 is fixedly connected to the workbench 101, each of the support pads 104 is fixedly connected to the corresponding support plate 103, and the two support plates 103 are fixedly connected to the workbench 101. The table 101 is fixedly connected, the locking plate 115 is fixedly connected to the movable sleeve 113, the sliding rod 114 is slidably connected to the movable sleeve 113, the movable sleeve 113 is rotatably connected to the threaded rod 112, the upper end of the threaded rod 112 is rotatably connected to the workbench 101, the lower end of the threaded rod 112 is fixedly connected to the output end of the locking motor 111, the locking motor 111 is fixedly connected to the workbench 101, the warning column 117 is fixedly connected to the protective frame 116, and the protective frame 116 is fixedly connected to the workbench 101. The limit rod 120 is fixedly connected to the workbench 101, one side of the hydraulic block 119 is slidably connected to the limit rod 120, the upper side of the hydraulic block 119 is fixedly connected to the output end of the hydraulic cylinder 118, the hydraulic cylinder 118 is fixedly connected to the workbench 101, the two control blocks 122 are fixedly connected to the processing plate 121, the processing plate 121 is fixedly connected to the workbench 101, the power supply box 124 is fixedly connected to the power supply frame 123, the power supply frame 123 is fixedly connected to the workbench 101, and the current arrangement The warning column 117 in the protective component 107 can remind the staff of safe use by emitting light and making sounds. The locking motor 111 in the locking component 106 immediately drives the threaded rod 112 after receiving the stop command, and moves the movable sleeve 113 and the locking plate 115 upward, thereby blocking the connection with the hydraulic cylinder 118 from the inside of the workbench 101. This process is fast in response and safe in use, and solves the problem that the hydraulic cylinder is still connected to the infusion tube and the oil tank after stopping, the stopping effect is general, and the hydraulic cylinder still has a tendency to continue to move, which is dangerous to use.

[0032] Among them, the power supply component 110 is located on the back side of the workbench 101, the pressure-bearing component 109 is located on the inner side of the workbench 101, the hydraulic component 108 is located above the workbench 101, the two protection components 107 are respectively located on both sides of the workbench 101, the locking component 106 is located at the inner bottom of the workbench 101, the pressure gauge 105 is located on the front side of the workbench 101, each of the support pads 104 is respectively located under the corresponding support plate 103, and the two support plates 103 are respectively located on both sides of the workbench 101.

[0033] Secondly, the locking plate 115 is located on one side of the movable sleeve 113, the sliding rod 114 is located on the other side of the movable sleeve 113, the movable sleeve 113 is located on the peripheral side of the threaded rod 112, the upper end of the threaded rod 112 is located on the inner side of the workbench 101, the locking motor 111 is located at the inner bottom of the workbench 101, the warning column 117 is located on one side of the protective frame 116, and the protective frame 116 is located on one side of the workbench 101. The warning column 117 on the outside of each protective frame 116 can emit light and alarm in an emergency, promptly reminding the staff to immediately stop the equipment through the control block 122.

[0034] At the same time, the limit rod 120 is located on the front side of the workbench 101, one side of the hydraulic block 119 is located on the peripheral side of the limit rod 120, and the hydraulic cylinder 118 is located on the inner top of the workbench 101. Pipelines and oil pipelines connecting the hydraulic cylinder 118 are arranged inside the workbench 101. When the movable sleeve 113 is driven by the thread of the threaded rod 112, the locking plate 115 moves upward to block the pipeline and the oil pipeline, stop transportation, and then stop the work of the hydraulic cylinder 118 to ensure safety during use. During the driving process of the threaded rod 112, the movable sleeve 113 is in a vertical state and moves up and down due to the limiting effect of the sliding rod 114, so as not to affect the position relationship of the locking plate 115 on the other side of the movable sleeve 113, thereby ensuring that the locking plate 115 fits perfectly on the inner side of the workbench 101 and blocks the connection between the pipeline and the hydraulic cylinder 118.

[0035] In addition, the two control blocks 122 are both located on one side of the processing plate 121, the processing plate 121 is located on the inner side of the workbench 101, the power supply box 124 is located above the power supply frame 123, and the power supply frame 123 is located on the back side of the workbench 101. The control block 122 is used to control the start and stop of the hydraulic cylinder 118 and the locking motor 111 in the workbench 101. When the equipment needs to be stopped immediately, the control block 122 immediately disconnects the power supply of the hydraulic cylinder 118, starts the locking motor 111, drives the threaded rod 112 to rotate, moves the movable sleeve 113 and the locking plate 115 upward, blocks and holds the transport pipeline in the workbench 101, prevents the hydraulic block 119 from continuing to move, and cooperates with the protection of the protective frame 116 and the warning function of the warning column 117 to remind the surrounding staff.

[0036] In this embodiment, the warning column 117 on the outside of each of the protective frames 116 can emit light and alarm in an emergency, promptly reminding the staff to immediately stop the equipment through the control block 122. Pipelines and oil pipelines connected to the hydraulic cylinder 118 are arranged inside the workbench 101. When the movable sleeve 113 is driven by the thread of the threaded rod 112, the locking plate 115 moves upward to block the pipeline and the oil pipeline, stop transportation, and then stop the operation of the hydraulic cylinder 118 to ensure safety during use. During the driving process of the threaded rod 112, the movable sleeve 113 is in a vertical state and moves up and down due to the limiting effect of the sliding rod 114, so as not to affect the other side of the movable sleeve 113. The positional relationship of the locking plate 115 ensures that the locking plate 115 fits perfectly on the inner side of the workbench 101, blocking the connection between the pipeline and the hydraulic cylinder 118. The control block 122 is used to control the start and stop of the hydraulic cylinder 118 and the locking motor 111 in the workbench 101. When the equipment needs to be stopped immediately, the control block 122 immediately disconnects the power supply of the hydraulic cylinder 118, starts the locking motor 111, drives the threaded rod 112 to rotate, moves the movable sleeve 113 and the locking plate 115 upward, blocks and holds the transport pipeline in the workbench 101, prevents the hydraulic block 119 from continuing to move, and cooperates with the protection of the protective frame 116 and the warning function of the warning column 117 to remind surrounding staff.

[0037] The second embodiment of the present application is:

[0038] Based on the first embodiment, please refer to Figure 5 ,in Figure 5 It is a right side view of the second embodiment of the present invention.

[0039] The present invention provides a hydraulic control device for a hydraulic press, which also includes a side plate 201 , a fan 202 and a duct 203 .

[0040] According to this specific embodiment, the duct 203 is fixedly connected to the output end of the fan 202, the fan 202 is fixedly connected to the side panel 201 and is located above the side panel 201, the side panel 201 is fixedly connected to the workbench 101 and is located on one side of the workbench 101, and a retractable hose is provided at the upper end of the duct 203, and the staff can clean the space between the processing plate 121 and the two protective frames 116 by holding the hose, and also cool the hydraulic block 119 and the hydraulic cylinder 118 by air cooling. The side panel 201 provides installation support for the fan 202, and provides power through the power supply box 124.

[0041] In this embodiment, a retractable hose is provided at the upper end of the conduit 203, and the staff can clean the space between the processing plate 121 and the two protective frames 116 by holding the hose, and also cool the hydraulic block 119 and the hydraulic cylinder 118 by air cooling. The side panel 201 provides installation support for the fan 202, and provides power through the power supply box 124.

[0042] The third embodiment of the present application is:

[0043] Based on the second embodiment, please refer to Figure 6 ,in Figure 6 It is a flow chart of the steps of a hydraulic control method of a hydraulic press of the present invention.

[0044] The present invention provides a hydraulic pressure control method for a hydraulic press, comprising the following steps:

[0045] S1: First, open the power supply box 124 to provide power to the entire structure of the workbench 101, and control one of the control blocks 122 to control the locking motor 111 to move the movable sleeve 113 and the locking plate 115 downward;

[0046] S2: After the hydraulic cylinder 118 is powered on, it drives the hydraulic block 119 to work normally, during which the limit rod 120 corrects the movement of the hydraulic block 119;

[0047] S3: When the hydraulic cylinder 118 stops in an emergency, one of the control blocks 122 is controlled to drive the locking motor 111 to rotate, and the movable sleeve 113 and the locking block are moved in the workbench 101 through the threaded rod 112;

[0048] S4: The pipe in the workbench 101 is squeezed to stop, and after the transmission is blocked, the power supply of the power supply box 124 is turned off, and the workbench 101 is moved away, and the warning column 117 outside the protection frame 116 emits an alarm and flashes;

[0049] When using the hydraulic control method of a hydraulic press of the present embodiment, firstly, the power supply box 124 is opened to provide power for the overall structure of the workbench 101, and one of the control blocks 122 is controlled to control the locking motor 111 to move the movable sleeve 113 and the locking plate 115 downward. After the hydraulic cylinder 118 is energized, it drives the hydraulic block 119 to work normally. During this period, the movement of the hydraulic block 119 is corrected by the limit rod 120. When an emergency occurs and the hydraulic cylinder 118 is stopped, one of the control blocks 122 is controlled to drive the locking motor 111 to rotate, and the movable sleeve 113 and the locking block are moved in the workbench 101 through the threaded rod 112, and the pipe in the workbench 101 is squeezed to stop. After blocking the transmission, the power supply of the power supply box 124 is turned off, and it is away from the workbench 101. The warning column 117 outside the protective frame 116 emits an alarm and flashes, thereby completing the stopping of the equipment.

[0050] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A hydraulic control device for a hydraulic press, comprising a workbench, characterized in that: It also includes a hydraulic mechanism, which includes two support plates, multiple support pads, a pressure gauge, a locking assembly, two protective assemblies, a hydraulic assembly, a pressure-bearing assembly and a power supply assembly. The power supply assembly is fixedly connected to the workbench and is located on the back side of the workbench. The pressure-bearing assembly is fixedly connected to the workbench and is located on the inner side of the workbench. The hydraulic assembly is fixedly connected to the workbench and is located above the workbench. The two protective assemblies are fixedly connected to the workbench and are respectively located on both sides of the workbench. The locking assembly is fixedly connected to the workbench and is located at the inner bottom of the workbench. The pressure gauge is fixedly connected to the workbench and is located on the front side of the workbench. Each of the support pads is respectively fixedly connected to the corresponding support plate and is respectively located below the corresponding support plate. The two support plates are fixedly connected to the workbench and are respectively located on both sides of the workbench.

2. The hydraulic control device of a hydraulic press according to claim 1, characterized in that: The locking assembly includes a locking motor, a threaded rod, a movable sleeve, a sliding rod and a locking plate. The locking plate is fixedly connected to the movable sleeve and is located on one side of the movable sleeve. The sliding rod is slidably connected to the movable sleeve and is located on the other side of the movable sleeve. The movable sleeve is rotatably connected to the threaded rod and is located on the circumferential side of the threaded rod. The upper end of the threaded rod is rotatably connected to the workbench and is located on the inner side of the workbench. The lower end of the threaded rod is fixedly connected to the output end of the locking motor. The locking motor is fixedly connected to the workbench and is located on the inner bottom of the workbench.

3. The hydraulic control device of a hydraulic press according to claim 2, characterized in that: Each of the protection components includes a protection frame and a warning column, wherein the warning column is fixedly connected to the protection frame and is located on one side of the protection frame, and the protection frame is fixedly connected to the workbench and is located on one side of the workbench.

4. The hydraulic control device for a hydraulic press according to claim 3, characterized in that: The hydraulic assembly includes a hydraulic cylinder, a hydraulic block and a limit rod. The limit rod is fixedly connected to the workbench and is located on the front side of the workbench. One side of the hydraulic block is slidably connected to the limit rod and is located on the peripheral side of the limit rod. The upper side of the hydraulic block is fixedly connected to the output end of the hydraulic cylinder. The hydraulic cylinder is fixedly connected to the workbench and is located on the inner top of the workbench.

5. The hydraulic control device for a hydraulic press according to claim 4, characterized in that: The pressure-bearing component includes a processing plate and two control blocks, the two control blocks are fixedly connected to the processing plate and are located on one side of the processing plate, and the processing plate is fixedly connected to the workbench and is located on the inner side of the workbench.

6. The hydraulic control device for a hydraulic press according to claim 5, characterized in that: The power supply assembly includes a power supply rack and a power supply box. The power supply box is fixedly connected to the power supply rack and is located above the power supply rack. The power supply rack is fixedly connected to the workbench and is located on the back side of the workbench.

7. The hydraulic control device for a hydraulic press according to claim 6, characterized in that: The hydraulic control device of the hydraulic press also includes a side plate, a fan and a duct, the duct is fixedly connected to the output end of the fan, the fan is fixedly connected to the side plate and is located above the side plate, and the side plate is fixedly connected to the workbench and is located on one side of the workbench.

8. A hydraulic pressure control method for a hydraulic press, applied to the hydraulic pressure control device for a hydraulic press as claimed in claim 7, characterized in that: The steps include: First, the power supply box is opened to provide power to the overall structure of the workbench, and one of the control blocks is controlled to control the locking motor to move the movable sleeve and the locking plate downward; After the hydraulic cylinder is powered on, it drives the hydraulic block to work normally, during which the limit rod corrects the movement of the hydraulic block; When the hydraulic cylinder is stopped in an emergency, one of the control blocks is controlled to drive the locking motor to rotate, and the movable sleeve and the locking block are moved in the workbench through the threaded rod; The pipe in the workbench is squeezed to stop, and after the transmission is blocked, the power supply of the power supply box is turned off, and the workbench is moved away, and the warning column outside the protection frame emits an alarm and flashes.

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